caddytls: Pointer receiver (fix #6885)

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

.github/SECURITY.md

@@ -6,8 +6,8 @@ The Caddy project would like to make sure that it stays on top of all practicall
 ## Supported Versions
 
 | Version  | Supported |
-| ------- | ------------------ |
+| -------- | ----------|
-| 2.x     | ✔️ |
+| 2.latest | ✔️        |
 | 1.x      | :x:       |
 | < 1.x    | :x:       |
 

.github/workflows/ci.yml

@@ -12,6 +12,10 @@ on:
       - master
       - 2.*
 
+env:
+  # https://github.com/actions/setup-go/issues/491
+  GOTOOLCHAIN: local
+
 jobs:
   test:
     strategy:
@@ -23,17 +27,13 @@ jobs:
           - mac
           - windows
         go:
-          - '1.21'
+          - '1.24'
-          - '1.22'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.21'
+        - go: '1.24'
-          GO_SEMVER: '~1.21.0'
+          GO_SEMVER: '~1.24.1'
-
-        - go: '1.22'
-          GO_SEMVER: '~1.22.3'
 
         # Set some variables per OS, usable via ${{ matrix.VAR }}
         # OS_LABEL: the VM label from GitHub Actions (see https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories)
@@ -99,7 +99,7 @@ jobs:
       env:
         CGO_ENABLED: 0
       run: |
-        go build -tags nobdger -trimpath -ldflags="-w -s" -v
+        go build -tags nobadger,nomysql,nopgx -trimpath -ldflags="-w -s" -v
 
     - name: Smoke test Caddy
       working-directory: ./cmd/caddy
@@ -122,7 +122,7 @@ jobs:
       # continue-on-error: true
       run: |
         # (go test -v -coverprofile=cover-profile.out -race ./... 2>&1) > test-results/test-result.out
-        go test -tags nobadger -v -coverprofile="cover-profile.out" -short -race ./...
+        go test -tags nobadger,nomysql,nopgx -v -coverprofile="cover-profile.out" -short -race ./...
         # echo "status=$?" >> $GITHUB_OUTPUT
 
     # Relevant step if we reinvestigate publishing test/coverage reports
@@ -143,25 +143,48 @@ jobs:
   s390x-test:
     name: test (s390x on IBM Z)
     runs-on: ubuntu-latest
-    if: github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]'
+    if: github.event.pull_request.head.repo.full_name == 'caddyserver/caddy' && github.actor != 'dependabot[bot]'
     continue-on-error: true  # August 2020: s390x VM is down due to weather and power issues
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
       - name: Run Tests
         run: |
+          set +e
           mkdir -p ~/.ssh && echo -e "${SSH_KEY//_/\\n}" > ~/.ssh/id_ecdsa && chmod og-rwx ~/.ssh/id_ecdsa
 
           # short sha is enough?
           short_sha=$(git rev-parse --short HEAD)
 
+          # To shorten the following lines
+          ssh_opts="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
+          ssh_host="$CI_USER@ci-s390x.caddyserver.com"
+
           # The environment is fresh, so there's no point in keeping accepting and adding the key.
-          rsync -arz -e "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null" --progress --delete --exclude '.git' . "$CI_USER"@ci-s390x.caddyserver.com:/var/tmp/"$short_sha"
+          rsync -arz -e "ssh $ssh_opts" --progress --delete --exclude '.git' . "$ssh_host":/var/tmp/"$short_sha"
-          ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -t "$CI_USER"@ci-s390x.caddyserver.com "cd /var/tmp/$short_sha; go version; go env; printf "\n\n";CGO_ENABLED=0 go test -tags nobadger -v ./..."
+          ssh $ssh_opts -t "$ssh_host" bash <<EOF
+          cd /var/tmp/$short_sha
+          go version
+          go env
+          printf "\n\n"
+          retries=3
+          exit_code=0
+          while ((retries > 0)); do
+            CGO_ENABLED=0 go test -p 1 -tags nobadger,nomysql,nopgx -v ./...
+            exit_code=$?
+            if ((exit_code == 0)); then
+              break
+            fi
+            echo "\n\nTest failed: \$exit_code, retrying..."
+            ((retries--))
+          done
+          echo "Remote exit code: \$exit_code"
+          exit \$exit_code
+          EOF
           test_result=$?
 
           # There's no need leaving the files around
-          ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null "$CI_USER"@ci-s390x.caddyserver.com "rm -rf /var/tmp/'$short_sha'"
+          ssh $ssh_opts "$ssh_host" "rm -rf /var/tmp/'$short_sha'"
 
           echo "Test exit code: $test_result"
           exit $test_result
@@ -171,6 +194,7 @@ jobs:
 
   goreleaser-check:
     runs-on: ubuntu-latest
+    if: github.event.pull_request.head.repo.full_name == 'caddyserver/caddy' && github.actor != 'dependabot[bot]'
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -179,3 +203,18 @@ jobs:
         with:
           version: latest
           args: check
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "~1.24"
+          check-latest: true
+      - name: Install xcaddy
+        run: |
+          go install github.com/caddyserver/xcaddy/cmd/xcaddy@latest
+          xcaddy version
+      - uses: goreleaser/goreleaser-action@v6
+        with:
+          version: latest
+          args: build --single-target --snapshot
+        env:
+          TAG: ${{ github.head_ref || github.ref_name }}

.github/workflows/cross-build.yml

@@ -10,6 +10,10 @@ on:
       - master
       - 2.*
 
+env:
+  # https://github.com/actions/setup-go/issues/491
+  GOTOOLCHAIN: local
+
 jobs:
   build:
     strategy:
@@ -27,13 +31,13 @@ jobs:
           - 'darwin'
           - 'netbsd'
         go:
-          - '1.22'
+          - '1.24'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.22'
+        - go: '1.24'
-          GO_SEMVER: '~1.22.3'
+          GO_SEMVER: '~1.24.1'
 
     runs-on: ubuntu-latest
     continue-on-error: true
@@ -66,4 +70,4 @@ jobs:
         continue-on-error: true
         working-directory: ./cmd/caddy
         run: |
-          GOOS=$GOOS GOARCH=$GOARCH go build -tags nobadger -trimpath -o caddy-"$GOOS"-$GOARCH 2> /dev/null
+          GOOS=$GOOS GOARCH=$GOARCH go build -tags=nobadger,nomysql,nopgx -trimpath -o caddy-"$GOOS"-$GOARCH 2> /dev/null

.github/workflows/lint.yml

@@ -13,6 +13,10 @@ on:
 permissions:
   contents: read
 
+env:
+  # https://github.com/actions/setup-go/issues/491
+  GOTOOLCHAIN: local
+
 jobs:
   # From https://github.com/golangci/golangci-lint-action
   golangci:
@@ -43,13 +47,13 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
         with:
-          go-version: '~1.22.3'
+          go-version: '~1.24'
           check-latest: true
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v6
         with:
-          version: v1.55
+          version: latest
 
           # Windows times out frequently after about 5m50s if we don't set a longer timeout.
           args: --timeout 10m
@@ -63,5 +67,5 @@ jobs:
       - name: govulncheck
         uses: golang/govulncheck-action@v1
         with:
-          go-version-input: '~1.22.3'
+          go-version-input: '~1.24.1'
           check-latest: true

.github/workflows/release.yml

@@ -5,6 +5,10 @@ on:
     tags:
       - 'v*.*.*'
 
+env:
+  # https://github.com/actions/setup-go/issues/491
+  GOTOOLCHAIN: local
+
 jobs:
   release:
     name: Release
@@ -13,13 +17,13 @@ jobs:
         os: 
           - ubuntu-latest
         go: 
-          - '1.22'
+          - '1.24'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.22'
+        - go: '1.24'
-          GO_SEMVER: '~1.22.3'
+          GO_SEMVER: '~1.24.1'
 
     runs-on: ${{ matrix.os }}
     # https://github.com/sigstore/cosign/issues/1258#issuecomment-1002251233
@@ -104,6 +108,10 @@ jobs:
       uses: anchore/sbom-action/download-syft@main
     - name: Syft version
       run: syft version
+    - name: Install xcaddy
+      run: |
+        go install github.com/caddyserver/xcaddy/cmd/xcaddy@latest
+        xcaddy version
     # GoReleaser will take care of publishing those artifacts into the release
     - name: Run GoReleaser
       uses: goreleaser/goreleaser-action@v6

.golangci.yml

@@ -1,7 +1,9 @@
 linters-settings:
   errcheck:
-    ignore: fmt:.*,go.uber.org/zap/zapcore:^Add.*
+    exclude-functions:
-    ignoretests: true
+      - fmt.*
+      - (go.uber.org/zap/zapcore.ObjectEncoder).AddObject
+      - (go.uber.org/zap/zapcore.ObjectEncoder).AddArray
   gci:
     sections:
       - standard # Standard section: captures all standard packages.
@@ -33,7 +35,6 @@ linters:
     - errcheck
     - errname
     - exhaustive
-    - exportloopref
     - gci
     - gofmt
     - goimports
@@ -130,18 +131,22 @@ linters:
 run:
   # default concurrency is a available CPU number.
   # concurrency: 4 # explicitly omit this value to fully utilize available resources.
-  deadline: 5m
+  timeout: 5m
   issues-exit-code: 1
   tests: false
 
 # output configuration options
 output:
-  format: 'colored-line-number'
+  formats:
+    - format: 'colored-line-number'
   print-issued-lines: true
   print-linter-name: true
 
 issues:
   exclude-rules:
+    - text: 'G115' # TODO: Either we should fix the issues or nuke the linter if it's bad
+      linters:
+        - gosec
     # we aren't calling unknown URL
     - text: 'G107' # G107: Url provided to HTTP request as taint input
       linters:
@@ -166,3 +171,12 @@ issues:
     - path: modules/logging/filters.go
       linters:
         - dupl
+    - path: modules/caddyhttp/matchers.go
+      linters:
+        - dupl
+    - path: modules/caddyhttp/vars.go
+      linters:
+        - dupl
+    - path: _test\.go
+      linters:
+        - errcheck

.goreleaser.yml

@@ -12,6 +12,9 @@ before:
     - mkdir -p caddy-build
     - cp cmd/caddy/main.go caddy-build/main.go
     - /bin/sh -c 'cd ./caddy-build && go mod init caddy'
+    # prepare syso files for windows embedding
+    - /bin/sh -c 'for a in amd64 arm arm64; do XCADDY_SKIP_BUILD=1 GOOS=windows GOARCH=$a xcaddy build {{.Env.TAG}}; done'
+    - /bin/sh -c 'mv /tmp/buildenv_*/*.syso caddy-build'
     # GoReleaser doesn't seem to offer {{.Tag}} at this stage, so we have to embed it into the env
     # so we run: TAG=$(git describe --abbrev=0) goreleaser release --rm-dist --skip-publish --skip-validate
     - go mod edit -require=github.com/caddyserver/caddy/v2@{{.Env.TAG}} ./caddy-build/go.mod
@@ -31,7 +34,6 @@ builds:
 - env:
   - CGO_ENABLED=0
   - GO111MODULE=on
-  main: main.go
   dir: ./caddy-build
   binary: caddy
   goos:
@@ -81,6 +83,8 @@ builds:
   - -s -w
   tags:
   - nobadger
+  - nomysql
+  - nopgx
 
 signs:
   - cmd: cosign
@@ -107,7 +111,7 @@ archives:
   - id: default
     format_overrides:
       - goos: windows
-        format: zip
+        formats: zip
     name_template: >-
       {{ .ProjectName }}_
       {{- .Version }}_
@@ -188,6 +192,9 @@ nfpms:
       preremove: ./caddy-dist/scripts/preremove.sh
       postremove: ./caddy-dist/scripts/postremove.sh
 
+    provides:
+      - httpd
+
 release:
   github:
     owner: caddyserver

README.md

@@ -16,7 +16,7 @@
 	<a href="https://github.com/caddyserver/caddy/actions/workflows/ci.yml"><img src="https://github.com/caddyserver/caddy/actions/workflows/ci.yml/badge.svg"></a>
 	<a href="https://pkg.go.dev/github.com/caddyserver/caddy/v2"><img src="https://img.shields.io/badge/godoc-reference-%23007d9c.svg"></a>
 	<br>
-	<a href="https://twitter.com/caddyserver" title="@caddyserver on Twitter"><img src="https://img.shields.io/badge/twitter-@caddyserver-55acee.svg" alt="@caddyserver on Twitter"></a>
+	<a href="https://x.com/caddyserver" title="@caddyserver on Twitter"><img src="https://img.shields.io/twitter/follow/caddyserver" alt="@caddyserver on Twitter"></a>
 	<a href="https://caddy.community" title="Caddy Forum"><img src="https://img.shields.io/badge/community-forum-ff69b4.svg" alt="Caddy Forum"></a>
 	<br>
 	<a href="https://sourcegraph.com/github.com/caddyserver/caddy?badge" title="Caddy on Sourcegraph"><img src="https://sourcegraph.com/github.com/caddyserver/caddy/-/badge.svg" alt="Caddy on Sourcegraph"></a>
@@ -67,6 +67,7 @@
 	- Fully-managed local CA for internal names & IPs
 	- Can coordinate with other Caddy instances in a cluster
 	- Multi-issuer fallback
+	- Encrypted ClientHello (ECH) support
 - **Stays up when other servers go down** due to TLS/OCSP/certificate-related issues
 - **Production-ready** after serving trillions of requests and managing millions of TLS certificates
 - **Scales to hundreds of thousands of sites** as proven in production
@@ -87,7 +88,7 @@ See [our online documentation](https://caddyserver.com/docs/install) for other i
 
 Requirements:
 
-- [Go 1.21 or newer](https://golang.org/dl/)
+- [Go 1.24.0 or newer](https://golang.org/dl/)
 
 ### For development
 
@@ -131,7 +132,7 @@ $ xcaddy build
 4. Initialize a Go module: `go mod init caddy`
 5. (Optional) Pin Caddy version: `go get github.com/caddyserver/caddy/v2@version` replacing `version` with a git tag, commit, or branch name.
 6. (Optional) Add plugins by adding their import: `_ "import/path/here"`
-7. Compile: `go build`
+7. Compile: `go build -tags=nobadger,nomysql,nopgx`
 
 
 
@@ -176,7 +177,7 @@ The docs are also open source. You can contribute to them here: https://github.c
 
 ## Getting help
 
-- We advise companies using Caddy to secure a support contract through [Ardan Labs](https://www.ardanlabs.com/my/contact-us?dd=caddy) before help is needed.
+- We advise companies using Caddy to secure a support contract through [Ardan Labs](https://www.ardanlabs.com) before help is needed.
 
 - A [sponsorship](https://github.com/sponsors/mholt) goes a long way! We can offer private help to sponsors. If Caddy is benefitting your company, please consider a sponsorship. This not only helps fund full-time work to ensure the longevity of the project, it provides your company the resources, support, and discounts you need; along with being a great look for your company to your customers and potential customers!
 
@@ -192,8 +193,8 @@ Matthew Holt began developing Caddy in 2014 while studying computer science at B
 
 **The name "Caddy" is trademarked.** The name of the software is "Caddy", not "Caddy Server" or "CaddyServer". Please call it "Caddy" or, if you wish to clarify, "the Caddy web server". Caddy is a registered trademark of Stack Holdings GmbH.
 
-- _Project on Twitter: [@caddyserver](https://twitter.com/caddyserver)_
+- _Project on X: [@caddyserver](https://x.com/caddyserver)_
-- _Author on Twitter: [@mholt6](https://twitter.com/mholt6)_
+- _Author on X: [@mholt6](https://x.com/mholt6)_
 
 Caddy is a project of [ZeroSSL](https://zerossl.com), a Stack Holdings company.
 

admin.go

@@ -34,6 +34,7 @@ import (
 	"os"
 	"path"
 	"regexp"
+	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -213,7 +214,7 @@ type AdminPermissions struct {
 
 // newAdminHandler reads admin's config and returns an http.Handler suitable
 // for use in an admin endpoint server, which will be listening on listenAddr.
-func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool) adminHandler {
+func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool, _ Context) adminHandler {
 	muxWrap := adminHandler{mux: http.NewServeMux()}
 
 	// secure the local or remote endpoint respectively
@@ -269,7 +270,6 @@ func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool) admi
 	// register third-party module endpoints
 	for _, m := range GetModules("admin.api") {
 		router := m.New().(AdminRouter)
-		handlerLabel := m.ID.Name()
 		for _, route := range router.Routes() {
 			addRoute(route.Pattern, handlerLabel, route.Handler)
 		}
@@ -312,7 +312,7 @@ func (admin AdminConfig) allowedOrigins(addr NetworkAddress) []*url.URL {
 	}
 	if admin.Origins == nil {
 		if addr.isLoopback() {
-			if addr.IsUnixNetwork() {
+			if addr.IsUnixNetwork() || addr.IsFdNetwork() {
 				// RFC 2616, Section 14.26:
 				// "A client MUST include a Host header field in all HTTP/1.1 request
 				// messages. If the requested URI does not include an Internet host
@@ -350,7 +350,7 @@ func (admin AdminConfig) allowedOrigins(addr NetworkAddress) []*url.URL {
 				uniqueOrigins[net.JoinHostPort("127.0.0.1", addr.port())] = struct{}{}
 			}
 		}
-		if !addr.IsUnixNetwork() {
+		if !addr.IsUnixNetwork() && !addr.IsFdNetwork() {
 			uniqueOrigins[addr.JoinHostPort(0)] = struct{}{}
 		}
 	}
@@ -381,7 +381,9 @@ func (admin AdminConfig) allowedOrigins(addr NetworkAddress) []*url.URL {
 // for the admin endpoint exists in cfg, a default one is used, so
 // that there is always an admin server (unless it is explicitly
 // configured to be disabled).
-func replaceLocalAdminServer(cfg *Config) error {
+// Critically note that some elements and functionality of the context
+// may not be ready, e.g. storage. Tread carefully.
+func replaceLocalAdminServer(cfg *Config, ctx Context) error {
 	// always* be sure to close down the old admin endpoint
 	// as gracefully as possible, even if the new one is
 	// disabled -- careful to use reference to the current
@@ -423,7 +425,7 @@ func replaceLocalAdminServer(cfg *Config) error {
 		return err
 	}
 
-	handler := cfg.Admin.newAdminHandler(addr, false)
+	handler := cfg.Admin.newAdminHandler(addr, false, ctx)
 
 	ln, err := addr.Listen(context.TODO(), 0, net.ListenConfig{})
 	if err != nil {
@@ -544,7 +546,7 @@ func replaceRemoteAdminServer(ctx Context, cfg *Config) error {
 
 	// make the HTTP handler but disable Host/Origin enforcement
 	// because we are using TLS authentication instead
-	handler := cfg.Admin.newAdminHandler(addr, true)
+	handler := cfg.Admin.newAdminHandler(addr, true, ctx)
 
 	// create client certificate pool for TLS mutual auth, and extract public keys
 	// so that we can enforce access controls at the application layer
@@ -675,13 +677,7 @@ func (remote RemoteAdmin) enforceAccessControls(r *http.Request) error {
 					// key recognized; make sure its HTTP request is permitted
 					for _, accessPerm := range adminAccess.Permissions {
 						// verify method
-						methodFound := accessPerm.Methods == nil
+						methodFound := accessPerm.Methods == nil || slices.Contains(accessPerm.Methods, r.Method)
-						for _, method := range accessPerm.Methods {
-							if method == r.Method {
-								methodFound = true
-								break
-							}
-						}
 						if !methodFound {
 							return APIError{
 								HTTPStatus: http.StatusForbidden,
@@ -877,13 +873,9 @@ func (h adminHandler) handleError(w http.ResponseWriter, r *http.Request, err er
 // a trustworthy/expected value. This helps to mitigate DNS
 // rebinding attacks.
 func (h adminHandler) checkHost(r *http.Request) error {
-	var allowed bool
+	allowed := slices.ContainsFunc(h.allowedOrigins, func(u *url.URL) bool {
-	for _, allowedOrigin := range h.allowedOrigins {
+		return r.Host == u.Host
-		if r.Host == allowedOrigin.Host {
+	})
-			allowed = true
-			break
-		}
-	}
 	if !allowed {
 		return APIError{
 			HTTPStatus: http.StatusForbidden,
@@ -1147,7 +1139,7 @@ traverseLoop:
 						return fmt.Errorf("[%s] invalid array index '%s': %v",
 							path, idxStr, err)
 					}
-					if idx < 0 || idx >= len(arr) {
+					if idx < 0 || (method != http.MethodPut && idx >= len(arr)) || idx > len(arr) {
 						return fmt.Errorf("[%s] array index out of bounds: %s", path, idxStr)
 					}
 				}

admin_test.go

@@ -15,12 +15,19 @@
 package caddy
 
 import (
+	"context"
+	"crypto/x509"
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/http/httptest"
 	"reflect"
 	"sync"
 	"testing"
+
+	"github.com/caddyserver/certmagic"
+	"github.com/prometheus/client_golang/prometheus"
+	dto "github.com/prometheus/client_model/go"
 )
 
 var testCfg = []byte(`{
@@ -203,3 +210,730 @@ func BenchmarkLoad(b *testing.B) {
 		Load(testCfg, true)
 	}
 }
+
+func TestAdminHandlerErrorHandling(t *testing.T) {
+	initAdminMetrics()
+
+	handler := adminHandler{
+		mux: http.NewServeMux(),
+	}
+
+	handler.mux.Handle("/error", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		err := fmt.Errorf("test error")
+		handler.handleError(w, r, err)
+	}))
+
+	req := httptest.NewRequest(http.MethodGet, "/error", nil)
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+
+	if rr.Code == http.StatusOK {
+		t.Error("expected error response, got success")
+	}
+
+	var apiErr APIError
+	if err := json.NewDecoder(rr.Body).Decode(&apiErr); err != nil {
+		t.Fatalf("decoding response: %v", err)
+	}
+	if apiErr.Message != "test error" {
+		t.Errorf("expected error message 'test error', got '%s'", apiErr.Message)
+	}
+}
+
+func initAdminMetrics() {
+	if adminMetrics.requestErrors != nil {
+		prometheus.Unregister(adminMetrics.requestErrors)
+	}
+	if adminMetrics.requestCount != nil {
+		prometheus.Unregister(adminMetrics.requestCount)
+	}
+
+	adminMetrics.requestErrors = prometheus.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "caddy",
+		Subsystem: "admin_http",
+		Name:      "request_errors_total",
+		Help:      "Number of errors that occurred handling admin endpoint requests",
+	}, []string{"handler", "path", "method"})
+
+	adminMetrics.requestCount = prometheus.NewCounterVec(prometheus.CounterOpts{
+		Namespace: "caddy",
+		Subsystem: "admin_http",
+		Name:      "requests_total",
+		Help:      "Count of requests to the admin endpoint",
+	}, []string{"handler", "path", "code", "method"}) // Added code and method labels
+
+	prometheus.MustRegister(adminMetrics.requestErrors)
+	prometheus.MustRegister(adminMetrics.requestCount)
+}
+
+func TestAdminHandlerBuiltinRouteErrors(t *testing.T) {
+	initAdminMetrics()
+
+	cfg := &Config{
+		Admin: &AdminConfig{
+			Listen: "localhost:2019",
+		},
+	}
+
+	err := replaceLocalAdminServer(cfg, Context{})
+	if err != nil {
+		t.Fatalf("setting up admin server: %v", err)
+	}
+	defer func() {
+		stopAdminServer(localAdminServer)
+	}()
+
+	tests := []struct {
+		name           string
+		path           string
+		method         string
+		expectedStatus int
+	}{
+		{
+			name:           "stop endpoint wrong method",
+			path:           "/stop",
+			method:         http.MethodGet,
+			expectedStatus: http.StatusMethodNotAllowed,
+		},
+		{
+			name:           "config endpoint wrong content-type",
+			path:           "/config/",
+			method:         http.MethodPost,
+			expectedStatus: http.StatusBadRequest,
+		},
+		{
+			name:           "config ID missing ID",
+			path:           "/id/",
+			method:         http.MethodGet,
+			expectedStatus: http.StatusBadRequest,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			req := httptest.NewRequest(test.method, fmt.Sprintf("http://localhost:2019%s", test.path), nil)
+			rr := httptest.NewRecorder()
+
+			localAdminServer.Handler.ServeHTTP(rr, req)
+
+			if rr.Code != test.expectedStatus {
+				t.Errorf("expected status %d but got %d", test.expectedStatus, rr.Code)
+			}
+
+			metricValue := testGetMetricValue(map[string]string{
+				"path":    test.path,
+				"handler": "admin",
+				"method":  test.method,
+			})
+			if metricValue != 1 {
+				t.Errorf("expected error metric to be incremented once, got %v", metricValue)
+			}
+		})
+	}
+}
+
+func testGetMetricValue(labels map[string]string) float64 {
+	promLabels := prometheus.Labels{}
+	for k, v := range labels {
+		promLabels[k] = v
+	}
+
+	metric, err := adminMetrics.requestErrors.GetMetricWith(promLabels)
+	if err != nil {
+		return 0
+	}
+
+	pb := &dto.Metric{}
+	metric.Write(pb)
+	return pb.GetCounter().GetValue()
+}
+
+type mockRouter struct {
+	routes []AdminRoute
+}
+
+func (m mockRouter) Routes() []AdminRoute {
+	return m.routes
+}
+
+type mockModule struct {
+	mockRouter
+}
+
+func (m *mockModule) CaddyModule() ModuleInfo {
+	return ModuleInfo{
+		ID: "admin.api.mock",
+		New: func() Module {
+			mm := &mockModule{
+				mockRouter: mockRouter{
+					routes: m.routes,
+				},
+			}
+			return mm
+		},
+	}
+}
+
+func TestNewAdminHandlerRouterRegistration(t *testing.T) {
+	originalModules := make(map[string]ModuleInfo)
+	for k, v := range modules {
+		originalModules[k] = v
+	}
+	defer func() {
+		modules = originalModules
+	}()
+
+	mockRoute := AdminRoute{
+		Pattern: "/mock",
+		Handler: AdminHandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
+			w.WriteHeader(http.StatusOK)
+			return nil
+		}),
+	}
+
+	mock := &mockModule{
+		mockRouter: mockRouter{
+			routes: []AdminRoute{mockRoute},
+		},
+	}
+	RegisterModule(mock)
+
+	addr, err := ParseNetworkAddress("localhost:2019")
+	if err != nil {
+		t.Fatalf("Failed to parse address: %v", err)
+	}
+
+	admin := &AdminConfig{
+		EnforceOrigin: false,
+	}
+	handler := admin.newAdminHandler(addr, false, Context{})
+
+	req := httptest.NewRequest("GET", "/mock", nil)
+	req.Host = "localhost:2019"
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+
+	if rr.Code != http.StatusOK {
+		t.Errorf("Expected status code %d but got %d", http.StatusOK, rr.Code)
+		t.Logf("Response body: %s", rr.Body.String())
+	}
+
+	if len(admin.routers) != 1 {
+		t.Errorf("Expected 1 router to be stored, got %d", len(admin.routers))
+	}
+}
+
+type mockProvisionableRouter struct {
+	mockRouter
+	provisionErr error
+	provisioned  bool
+}
+
+func (m *mockProvisionableRouter) Provision(Context) error {
+	m.provisioned = true
+	return m.provisionErr
+}
+
+type mockProvisionableModule struct {
+	*mockProvisionableRouter
+}
+
+func (m *mockProvisionableModule) CaddyModule() ModuleInfo {
+	return ModuleInfo{
+		ID: "admin.api.mock_provision",
+		New: func() Module {
+			mm := &mockProvisionableModule{
+				mockProvisionableRouter: &mockProvisionableRouter{
+					mockRouter:   m.mockRouter,
+					provisionErr: m.provisionErr,
+				},
+			}
+			return mm
+		},
+	}
+}
+
+func TestAdminRouterProvisioning(t *testing.T) {
+	tests := []struct {
+		name         string
+		provisionErr error
+		wantErr      bool
+		routersAfter int // expected number of routers after provisioning
+	}{
+		{
+			name:         "successful provisioning",
+			provisionErr: nil,
+			wantErr:      false,
+			routersAfter: 0,
+		},
+		{
+			name:         "provisioning error",
+			provisionErr: fmt.Errorf("provision failed"),
+			wantErr:      true,
+			routersAfter: 1,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			originalModules := make(map[string]ModuleInfo)
+			for k, v := range modules {
+				originalModules[k] = v
+			}
+			defer func() {
+				modules = originalModules
+			}()
+
+			mockRoute := AdminRoute{
+				Pattern: "/mock",
+				Handler: AdminHandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
+					return nil
+				}),
+			}
+
+			// Create provisionable module
+			mock := &mockProvisionableModule{
+				mockProvisionableRouter: &mockProvisionableRouter{
+					mockRouter: mockRouter{
+						routes: []AdminRoute{mockRoute},
+					},
+					provisionErr: test.provisionErr,
+				},
+			}
+			RegisterModule(mock)
+
+			admin := &AdminConfig{}
+			addr, err := ParseNetworkAddress("localhost:2019")
+			if err != nil {
+				t.Fatalf("Failed to parse address: %v", err)
+			}
+
+			_ = admin.newAdminHandler(addr, false, Context{})
+			err = admin.provisionAdminRouters(Context{})
+
+			if test.wantErr {
+				if err == nil {
+					t.Error("Expected error but got nil")
+				}
+			} else {
+				if err != nil {
+					t.Errorf("Expected no error but got: %v", err)
+				}
+			}
+
+			if len(admin.routers) != test.routersAfter {
+				t.Errorf("Expected %d routers after provisioning, got %d", test.routersAfter, len(admin.routers))
+			}
+		})
+	}
+}
+
+func TestAllowedOriginsUnixSocket(t *testing.T) {
+	tests := []struct {
+		name          string
+		addr          NetworkAddress
+		origins       []string
+		expectOrigins []string
+	}{
+		{
+			name: "unix socket with default origins",
+			addr: NetworkAddress{
+				Network: "unix",
+				Host:    "/tmp/caddy.sock",
+			},
+			origins: nil, // default origins
+			expectOrigins: []string{
+				"", // empty host as per RFC 2616
+				"127.0.0.1",
+				"::1",
+			},
+		},
+		{
+			name: "unix socket with custom origins",
+			addr: NetworkAddress{
+				Network: "unix",
+				Host:    "/tmp/caddy.sock",
+			},
+			origins: []string{"example.com"},
+			expectOrigins: []string{
+				"example.com",
+			},
+		},
+		{
+			name: "tcp socket on localhost gets all loopback addresses",
+			addr: NetworkAddress{
+				Network:   "tcp",
+				Host:      "localhost",
+				StartPort: 2019,
+				EndPort:   2019,
+			},
+			origins: nil,
+			expectOrigins: []string{
+				"localhost:2019",
+				"[::1]:2019",
+				"127.0.0.1:2019",
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			admin := AdminConfig{
+				Origins: test.origins,
+			}
+
+			got := admin.allowedOrigins(test.addr)
+
+			var gotOrigins []string
+			for _, u := range got {
+				gotOrigins = append(gotOrigins, u.Host)
+			}
+
+			if len(gotOrigins) != len(test.expectOrigins) {
+				t.Errorf("Expected %d origins but got %d", len(test.expectOrigins), len(gotOrigins))
+				return
+			}
+
+			expectMap := make(map[string]struct{})
+			for _, origin := range test.expectOrigins {
+				expectMap[origin] = struct{}{}
+			}
+
+			gotMap := make(map[string]struct{})
+			for _, origin := range gotOrigins {
+				gotMap[origin] = struct{}{}
+			}
+
+			if !reflect.DeepEqual(expectMap, gotMap) {
+				t.Errorf("Origins mismatch.\nExpected: %v\nGot: %v", test.expectOrigins, gotOrigins)
+			}
+		})
+	}
+}
+
+func TestReplaceRemoteAdminServer(t *testing.T) {
+	const testCert = `MIIDCTCCAfGgAwIBAgIUXsqJ1mY8pKlHQtI3HJ23x2eZPqwwDQYJKoZIhvcNAQEL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`
+
+	tests := []struct {
+		name    string
+		cfg     *Config
+		wantErr bool
+	}{
+		{
+			name:    "nil config",
+			cfg:     nil,
+			wantErr: false,
+		},
+		{
+			name: "nil admin config",
+			cfg: &Config{
+				Admin: nil,
+			},
+			wantErr: false,
+		},
+		{
+			name: "nil remote config",
+			cfg: &Config{
+				Admin: &AdminConfig{},
+			},
+			wantErr: false,
+		},
+		{
+			name: "invalid listen address",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Remote: &RemoteAdmin{
+						Listen: "invalid:address",
+					},
+				},
+			},
+			wantErr: true,
+		},
+		{
+			name: "valid config",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Identity: &IdentityConfig{},
+					Remote: &RemoteAdmin{
+						Listen: "localhost:2021",
+						AccessControl: []*AdminAccess{
+							{
+								PublicKeys:  []string{testCert},
+								Permissions: []AdminPermissions{{Methods: []string{"GET"}, Paths: []string{"/test"}}},
+							},
+						},
+					},
+				},
+			},
+			wantErr: false,
+		},
+		{
+			name: "invalid certificate",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Identity: &IdentityConfig{},
+					Remote: &RemoteAdmin{
+						Listen: "localhost:2021",
+						AccessControl: []*AdminAccess{
+							{
+								PublicKeys:  []string{"invalid-cert-data"},
+								Permissions: []AdminPermissions{{Methods: []string{"GET"}, Paths: []string{"/test"}}},
+							},
+						},
+					},
+				},
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			ctx := Context{
+				Context: context.Background(),
+				cfg:     test.cfg,
+			}
+
+			if test.cfg != nil {
+				test.cfg.storage = &certmagic.FileStorage{Path: t.TempDir()}
+			}
+
+			if test.cfg != nil && test.cfg.Admin != nil && test.cfg.Admin.Identity != nil {
+				identityCertCache = certmagic.NewCache(certmagic.CacheOptions{
+					GetConfigForCert: func(certmagic.Certificate) (*certmagic.Config, error) {
+						return &certmagic.Config{}, nil
+					},
+				})
+			}
+
+			err := replaceRemoteAdminServer(ctx, test.cfg)
+
+			if test.wantErr {
+				if err == nil {
+					t.Error("Expected error but got nil")
+				}
+			} else {
+				if err != nil {
+					t.Errorf("Expected no error but got: %v", err)
+				}
+			}
+
+			// Clean up
+			if remoteAdminServer != nil {
+				_ = stopAdminServer(remoteAdminServer)
+			}
+		})
+	}
+}
+
+type mockIssuer struct {
+	configSet *certmagic.Config
+}
+
+func (m *mockIssuer) Issue(ctx context.Context, csr *x509.CertificateRequest) (*certmagic.IssuedCertificate, error) {
+	return &certmagic.IssuedCertificate{
+		Certificate: []byte(csr.Raw),
+	}, nil
+}
+
+func (m *mockIssuer) SetConfig(cfg *certmagic.Config) {
+	m.configSet = cfg
+}
+
+func (m *mockIssuer) IssuerKey() string {
+	return "mock"
+}
+
+type mockIssuerModule struct {
+	*mockIssuer
+}
+
+func (m *mockIssuerModule) CaddyModule() ModuleInfo {
+	return ModuleInfo{
+		ID: "tls.issuance.acme",
+		New: func() Module {
+			return &mockIssuerModule{mockIssuer: new(mockIssuer)}
+		},
+	}
+}
+
+func TestManageIdentity(t *testing.T) {
+	originalModules := make(map[string]ModuleInfo)
+	for k, v := range modules {
+		originalModules[k] = v
+	}
+	defer func() {
+		modules = originalModules
+	}()
+
+	RegisterModule(&mockIssuerModule{})
+
+	certPEM := []byte(`-----BEGIN CERTIFICATE-----
+MIIDujCCAqKgAwIBAgIIE31FZVaPXTUwDQYJKoZIhvcNAQEFBQAwSTELMAkGA1UE
+BhMCVVMxEzARBgNVBAoTCkdvb2dsZSBJbmMxJTAjBgNVBAMTHEdvb2dsZSBJbnRl
+cm5ldCBBdXRob3JpdHkgRzIwHhcNMTQwMTI5MTMyNzQzWhcNMTQwNTI5MDAwMDAw
+WjBpMQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwN
+TW91bnRhaW4gVmlldzETMBEGA1UECgwKR29vZ2xlIEluYzEYMBYGA1UEAwwPbWFp
+bC5nb29nbGUuY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE3lcub2pUwkjC
+5GJQA2ZZfJJi6d1QHhEmkX9VxKYGp6gagZuRqJWy9TXP6++1ZzQQxqZLD0TkuxZ9
+8i9Nz00000CCBjCCAQQwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMGgG
+CCsGAQUFBwEBBFwwWjArBggrBgEFBQcwAoYfaHR0cDovL3BraS5nb29nbGUuY29t
+L0dJQUcyLmNydDArBggrBgEFBQcwAYYfaHR0cDovL2NsaWVudHMxLmdvb2dsZS5j
+b20vb2NzcDAdBgNVHQ4EFgQUiJxtimAuTfwb+aUtBn5UYKreKvMwDAYDVR0TAQH/
+BAIwADAfBgNVHSMEGDAWgBRK3QYWG7z2aLV29YG2u2IaulqBLzAXBgNVHREEEDAO
+ggxtYWlsLmdvb2dsZTANBgkqhkiG9w0BAQUFAAOCAQEAMP6IWgNGZE8wP9TjFjSZ
+3mmW3A1eIr0CuPwNZ2LJ5ZD1i70ojzcj4I9IdP5yPg9CAEV4hNASbM1LzfC7GmJE
+tPzW5tRmpKVWZGRgTgZI8Hp/xZXMwLh9ZmXV4kESFAGj5G5FNvJyUV7R5Eh+7OZX
+7G4jJ4ZGJh+5jzN9HdJJHQHGYNIYOzC7+HH9UMwCjX9vhQ4RjwFZJThS2Yb+y7pb
+9yxTJZoXC6J0H5JpnZb7kZEJ+Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+-----END CERTIFICATE-----`)
+
+	keyPEM := []byte(`-----BEGIN PRIVATE KEY-----
+MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDRS0LmTwUT0iwP
+...
+-----END PRIVATE KEY-----`)
+
+	testStorage := certmagic.FileStorage{Path: t.TempDir()}
+	err := testStorage.Store(context.Background(), "localhost/localhost.crt", certPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = testStorage.Store(context.Background(), "localhost/localhost.key", keyPEM)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	tests := []struct {
+		name       string
+		cfg        *Config
+		wantErr    bool
+		checkState func(*testing.T, *Config)
+	}{
+		{
+			name: "nil config",
+			cfg:  nil,
+		},
+		{
+			name: "nil admin config",
+			cfg: &Config{
+				Admin: nil,
+			},
+		},
+		{
+			name: "nil identity config",
+			cfg: &Config{
+				Admin: &AdminConfig{},
+			},
+		},
+		{
+			name: "default issuer when none specified",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Identity: &IdentityConfig{
+						Identifiers: []string{"localhost"},
+					},
+				},
+				storage: &testStorage,
+			},
+			checkState: func(t *testing.T, cfg *Config) {
+				if len(cfg.Admin.Identity.issuers) == 0 {
+					t.Error("Expected at least 1 issuer to be configured")
+					return
+				}
+				if _, ok := cfg.Admin.Identity.issuers[0].(*mockIssuerModule); !ok {
+					t.Error("Expected mock issuer to be configured")
+				}
+			},
+		},
+		{
+			name: "custom issuer",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Identity: &IdentityConfig{
+						Identifiers: []string{"localhost"},
+						IssuersRaw: []json.RawMessage{
+							json.RawMessage(`{"module": "acme"}`),
+						},
+					},
+				},
+				storage: &certmagic.FileStorage{Path: "testdata"},
+			},
+			checkState: func(t *testing.T, cfg *Config) {
+				if len(cfg.Admin.Identity.issuers) != 1 {
+					t.Fatalf("Expected 1 issuer, got %d", len(cfg.Admin.Identity.issuers))
+				}
+				mockIss, ok := cfg.Admin.Identity.issuers[0].(*mockIssuerModule)
+				if !ok {
+					t.Fatal("Expected mock issuer")
+				}
+				if mockIss.configSet == nil {
+					t.Error("Issuer config was not set")
+				}
+			},
+		},
+		{
+			name: "invalid issuer module",
+			cfg: &Config{
+				Admin: &AdminConfig{
+					Identity: &IdentityConfig{
+						Identifiers: []string{"localhost"},
+						IssuersRaw: []json.RawMessage{
+							json.RawMessage(`{"module": "doesnt_exist"}`),
+						},
+					},
+				},
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			if identityCertCache != nil {
+				// Reset the cert cache before each test
+				identityCertCache.Stop()
+				identityCertCache = nil
+			}
+
+			ctx := Context{
+				Context:         context.Background(),
+				cfg:             test.cfg,
+				moduleInstances: make(map[string][]Module),
+			}
+
+			err := manageIdentity(ctx, test.cfg)
+
+			if test.wantErr {
+				if err == nil {
+					t.Error("Expected error but got nil")
+				}
+				return
+			}
+			if err != nil {
+				t.Fatalf("Expected no error but got: %v", err)
+			}
+
+			if test.checkState != nil {
+				test.checkState(t, test.cfg)
+			}
+		})
+	}
+}

caddy.go

@@ -399,6 +399,7 @@ func unsyncedDecodeAndRun(cfgJSON []byte, allowPersist bool) error {
 func run(newCfg *Config, start bool) (Context, error) {
 	ctx, err := provisionContext(newCfg, start)
 	if err != nil {
+		globalMetrics.configSuccess.Set(0)
 		return ctx, err
 	}
 
@@ -410,6 +411,7 @@ func run(newCfg *Config, start bool) (Context, error) {
 	// some of the other apps at runtime
 	err = ctx.cfg.Admin.provisionAdminRouters(ctx)
 	if err != nil {
+		globalMetrics.configSuccess.Set(0)
 		return ctx, err
 	}
 
@@ -435,9 +437,11 @@ func run(newCfg *Config, start bool) (Context, error) {
 		return nil
 	}()
 	if err != nil {
+		globalMetrics.configSuccess.Set(0)
 		return ctx, err
 	}
-
+	globalMetrics.configSuccess.Set(1)
+	globalMetrics.configSuccessTime.SetToCurrentTime()
 	// now that the user's config is running, finish setting up anything else,
 	// such as remote admin endpoint, config loader, etc.
 	return ctx, finishSettingUp(ctx, ctx.cfg)
@@ -471,6 +475,7 @@ func provisionContext(newCfg *Config, replaceAdminServer bool) (Context, error)
 	ctx, cancel := NewContext(Context{Context: context.Background(), cfg: newCfg})
 	defer func() {
 		if err != nil {
+			globalMetrics.configSuccess.Set(0)
 			// if there were any errors during startup,
 			// we should cancel the new context we created
 			// since the associated config won't be used;
@@ -497,7 +502,7 @@ func provisionContext(newCfg *Config, replaceAdminServer bool) (Context, error)
 
 	// start the admin endpoint (and stop any prior one)
 	if replaceAdminServer {
-		err = replaceLocalAdminServer(newCfg)
+		err = replaceLocalAdminServer(newCfg, ctx)
 		if err != nil {
 			return ctx, fmt.Errorf("starting caddy administration endpoint: %v", err)
 		}
@@ -720,8 +725,10 @@ func Validate(cfg *Config) error {
 // Errors are logged along the way, and an appropriate exit
 // code is emitted.
 func exitProcess(ctx context.Context, logger *zap.Logger) {
-	// let the rest of the program know we're quitting
+	// let the rest of the program know we're quitting; only do it once
-	atomic.StoreInt32(exiting, 1)
+	if !atomic.CompareAndSwapInt32(exiting, 0, 1) {
+		return
+	}
 
 	// give the OS or service/process manager our 2 weeks' notice: we quit
 	if err := notify.Stopping(); err != nil {

caddyconfig/caddyfile/dispenser.go

@@ -415,7 +415,7 @@ func (d *Dispenser) EOFErr() error {
 
 // Err generates a custom parse-time error with a message of msg.
 func (d *Dispenser) Err(msg string) error {
-	return d.Errf(msg)
+	return d.WrapErr(errors.New(msg))
 }
 
 // Errf is like Err, but for formatted error messages

caddyconfig/caddyfile/importgraph.go

@@ -16,6 +16,7 @@ package caddyfile
 
 import (
 	"fmt"
+	"slices"
 )
 
 type adjacency map[string][]string
@@ -91,12 +92,7 @@ func (i *importGraph) areConnected(from, to string) bool {
 	if !ok {
 		return false
 	}
-	for _, v := range al {
+	return slices.Contains(al, to)
-		if v == to {
-			return true
-		}
-	}
-	return false
 }
 
 func (i *importGraph) willCycle(from, to string) bool {

caddyconfig/caddyfile/parse.go

@@ -264,9 +264,14 @@ func (p *parser) addresses() error {
 				return p.Errf("Site addresses cannot contain a comma ',': '%s' - put a space after the comma to separate site addresses", value)
 			}
 
+			// After the above, a comma surrounded by spaces would result
+			// in an empty token which we should ignore
+			if value != "" {
+				// Add the token as a site address
 				token.Text = value
 				p.block.Keys = append(p.block.Keys, token)
 			}
+		}
 
 		// Advance token and possibly break out of loop or return error
 		hasNext := p.Next()
@@ -418,7 +423,7 @@ func (p *parser) doImport(nesting int) error {
 		// make path relative to the file of the _token_ being processed rather
 		// than current working directory (issue #867) and then use glob to get
 		// list of matching filenames
-		absFile, err := filepath.Abs(p.Dispenser.File())
+		absFile, err := caddy.FastAbs(p.Dispenser.File())
 		if err != nil {
 			return p.Errf("Failed to get absolute path of file: %s: %v", p.Dispenser.File(), err)
 		}
@@ -617,7 +622,7 @@ func (p *parser) doSingleImport(importFile string) ([]Token, error) {
 
 	// Tack the file path onto these tokens so errors show the imported file's name
 	// (we use full, absolute path to avoid bugs: issue #1892)
-	filename, err := filepath.Abs(importFile)
+	filename, err := caddy.FastAbs(importFile)
 	if err != nil {
 		return nil, p.Errf("Failed to get absolute path of file: %s: %v", importFile, err)
 	}

caddyconfig/caddyfile/parse_test.go

@@ -555,6 +555,10 @@ func TestParseAll(t *testing.T) {
 			{"localhost:1234", "http://host2"},
 		}},
 
+		{`foo.example.com   ,   example.com`, false, [][]string{
+			{"foo.example.com", "example.com"},
+		}},
+
 		{`localhost:1234, http://host2,`, true, [][]string{}},
 
 		{`http://host1.com, http://host2.com {
@@ -614,8 +618,8 @@ func TestParseAll(t *testing.T) {
 		}
 		for j, block := range blocks {
 			if len(block.Keys) != len(test.keys[j]) {
-				t.Errorf("Test %d: Expected %d keys in block %d, got %d",
+				t.Errorf("Test %d: Expected %d keys in block %d, got %d: %v",
-					i, len(test.keys[j]), j, len(block.Keys))
+					i, len(test.keys[j]), j, len(block.Keys), block.Keys)
 				continue
 			}
 			for k, addr := range block.GetKeysText() {

caddyconfig/httpcaddyfile/addresses.go

@@ -31,7 +31,7 @@ import (
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
-// mapAddressToServerBlocks returns a map of listener address to list of server
+// mapAddressToProtocolToServerBlocks returns a map of listener address to list of server
 // blocks that will be served on that address. To do this, each server block is
 // expanded so that each one is considered individually, although keys of a
 // server block that share the same address stay grouped together so the config
@@ -77,10 +77,15 @@ import (
 // repetition may be undesirable, so call consolidateAddrMappings() to map
 // multiple addresses to the same lists of server blocks (a many:many mapping).
 // (Doing this is essentially a map-reduce technique.)
-func (st *ServerType) mapAddressToServerBlocks(originalServerBlocks []serverBlock,
+func (st *ServerType) mapAddressToProtocolToServerBlocks(originalServerBlocks []serverBlock,
 	options map[string]any,
-) (map[string][]serverBlock, error) {
+) (map[string]map[string][]serverBlock, error) {
-	sbmap := make(map[string][]serverBlock)
+	addrToProtocolToServerBlocks := map[string]map[string][]serverBlock{}
+
+	type keyWithParsedKey struct {
+		key       caddyfile.Token
+		parsedKey Address
+	}
 
 	for i, sblock := range originalServerBlocks {
 		// within a server block, we need to map all the listener addresses
@@ -88,27 +93,48 @@ func (st *ServerType) mapAddressToServerBlocks(originalServerBlocks []serverBloc
 		// will be served by them; this has the effect of treating each
 		// key of a server block as its own, but without having to repeat its
 		// contents in cases where multiple keys really can be served together
-		addrToKeys := make(map[string][]caddyfile.Token)
+		addrToProtocolToKeyWithParsedKeys := map[string]map[string][]keyWithParsedKey{}
 		for j, key := range sblock.block.Keys {
+			parsedKey, err := ParseAddress(key.Text)
+			if err != nil {
+				return nil, fmt.Errorf("parsing key: %v", err)
+			}
+			parsedKey = parsedKey.Normalize()
+
 			// a key can have multiple listener addresses if there are multiple
 			// arguments to the 'bind' directive (although they will all have
 			// the same port, since the port is defined by the key or is implicit
 			// through automatic HTTPS)
-			addrs, err := st.listenerAddrsForServerBlockKey(sblock, key.Text, options)
+			listeners, err := st.listenersForServerBlockAddress(sblock, parsedKey, options)
 			if err != nil {
 				return nil, fmt.Errorf("server block %d, key %d (%s): determining listener address: %v", i, j, key.Text, err)
 			}
 
-			// associate this key with each listener address it is served on
+			// associate this key with its protocols and each listener address served with them
-			for _, addr := range addrs {
+			kwpk := keyWithParsedKey{key, parsedKey}
-				addrToKeys[addr] = append(addrToKeys[addr], key)
+			for addr, protocols := range listeners {
+				protocolToKeyWithParsedKeys, ok := addrToProtocolToKeyWithParsedKeys[addr]
+				if !ok {
+					protocolToKeyWithParsedKeys = map[string][]keyWithParsedKey{}
+					addrToProtocolToKeyWithParsedKeys[addr] = protocolToKeyWithParsedKeys
+				}
+
+				// an empty protocol indicates the default, a nil or empty value in the ListenProtocols array
+				if len(protocols) == 0 {
+					protocols[""] = struct{}{}
+				}
+				for prot := range protocols {
+					protocolToKeyWithParsedKeys[prot] = append(
+						protocolToKeyWithParsedKeys[prot],
+						kwpk)
+				}
 			}
 		}
 
 		// make a slice of the map keys so we can iterate in sorted order
-		addrs := make([]string, 0, len(addrToKeys))
+		addrs := make([]string, 0, len(addrToProtocolToKeyWithParsedKeys))
-		for k := range addrToKeys {
+		for addr := range addrToProtocolToKeyWithParsedKeys {
-			addrs = append(addrs, k)
+			addrs = append(addrs, addr)
 		}
 		sort.Strings(addrs)
 
@@ -118,85 +144,132 @@ func (st *ServerType) mapAddressToServerBlocks(originalServerBlocks []serverBloc
 		// server block are only the ones which use the address; but
 		// the contents (tokens) are of course the same
 		for _, addr := range addrs {
-			keys := addrToKeys[addr]
+			protocolToKeyWithParsedKeys := addrToProtocolToKeyWithParsedKeys[addr]
-			// parse keys so that we only have to do it once
+
-			parsedKeys := make([]Address, 0, len(keys))
+			prots := make([]string, 0, len(protocolToKeyWithParsedKeys))
-			for _, key := range keys {
+			for prot := range protocolToKeyWithParsedKeys {
-				addr, err := ParseAddress(key.Text)
+				prots = append(prots, prot)
-				if err != nil {
-					return nil, fmt.Errorf("parsing key '%s': %v", key.Text, err)
 			}
-				parsedKeys = append(parsedKeys, addr.Normalize())
+			sort.Strings(prots)
+
+			protocolToServerBlocks, ok := addrToProtocolToServerBlocks[addr]
+			if !ok {
+				protocolToServerBlocks = map[string][]serverBlock{}
+				addrToProtocolToServerBlocks[addr] = protocolToServerBlocks
 			}
-			sbmap[addr] = append(sbmap[addr], serverBlock{
+
+			for _, prot := range prots {
+				keyWithParsedKeys := protocolToKeyWithParsedKeys[prot]
+
+				keys := make([]caddyfile.Token, len(keyWithParsedKeys))
+				parsedKeys := make([]Address, len(keyWithParsedKeys))
+
+				for k, keyWithParsedKey := range keyWithParsedKeys {
+					keys[k] = keyWithParsedKey.key
+					parsedKeys[k] = keyWithParsedKey.parsedKey
+				}
+
+				protocolToServerBlocks[prot] = append(protocolToServerBlocks[prot], serverBlock{
 					block: caddyfile.ServerBlock{
 						Keys:     keys,
 						Segments: sblock.block.Segments,
 					},
 					pile:       sblock.pile,
-				keys: parsedKeys,
+					parsedKeys: parsedKeys,
 				})
 			}
 		}
+	}
 
-	return sbmap, nil
+	return addrToProtocolToServerBlocks, nil
 }
 
 // consolidateAddrMappings eliminates repetition of identical server blocks in a mapping of
-// single listener addresses to lists of server blocks. Since multiple addresses may serve
+// single listener addresses to protocols to lists of server blocks. Since multiple addresses
-// identical sites (server block contents), this function turns a 1:many mapping into a
+// may serve multiple protocols to identical sites (server block contents), this function turns
-// many:many mapping. Server block contents (tokens) must be exactly identical so that
+// a 1:many mapping into a many:many mapping. Server block contents (tokens) must be
-// reflect.DeepEqual returns true in order for the addresses to be combined. Identical
+// exactly identical so that reflect.DeepEqual returns true in order for the addresses to be combined.
-// entries are deleted from the addrToServerBlocks map. Essentially, each pairing (each
+// Identical entries are deleted from the addrToServerBlocks map. Essentially, each pairing (each
 // association from multiple addresses to multiple server blocks; i.e. each element of
 // the returned slice) becomes a server definition in the output JSON.
-func (st *ServerType) consolidateAddrMappings(addrToServerBlocks map[string][]serverBlock) []sbAddrAssociation {
+func (st *ServerType) consolidateAddrMappings(addrToProtocolToServerBlocks map[string]map[string][]serverBlock) []sbAddrAssociation {
-	sbaddrs := make([]sbAddrAssociation, 0, len(addrToServerBlocks))
+	sbaddrs := make([]sbAddrAssociation, 0, len(addrToProtocolToServerBlocks))
-	for addr, sblocks := range addrToServerBlocks {
+
-		// we start with knowing that at least this address
+	addrs := make([]string, 0, len(addrToProtocolToServerBlocks))
-		// maps to these server blocks
+	for addr := range addrToProtocolToServerBlocks {
-		a := sbAddrAssociation{
+		addrs = append(addrs, addr)
-			addresses:    []string{addr},
-			serverBlocks: sblocks,
 	}
+	sort.Strings(addrs)
+
+	for _, addr := range addrs {
+		protocolToServerBlocks := addrToProtocolToServerBlocks[addr]
+
+		prots := make([]string, 0, len(protocolToServerBlocks))
+		for prot := range protocolToServerBlocks {
+			prots = append(prots, prot)
+		}
+		sort.Strings(prots)
+
+		for _, prot := range prots {
+			serverBlocks := protocolToServerBlocks[prot]
 
 			// now find other addresses that map to identical
-		// server blocks and add them to our list of
+			// server blocks and add them to our map of listener
-		// addresses, while removing them from the map
+			// addresses and protocols, while removing them from
-		for otherAddr, otherSblocks := range addrToServerBlocks {
+			// the original map
-			if addr == otherAddr {
+			listeners := map[string]map[string]struct{}{}
-				continue
-			}
-			if reflect.DeepEqual(sblocks, otherSblocks) {
-				a.addresses = append(a.addresses, otherAddr)
-				delete(addrToServerBlocks, otherAddr)
-			}
-		}
-		sort.Strings(a.addresses)
 
-		sbaddrs = append(sbaddrs, a)
+			for otherAddr, otherProtocolToServerBlocks := range addrToProtocolToServerBlocks {
+				for otherProt, otherServerBlocks := range otherProtocolToServerBlocks {
+					if addr == otherAddr && prot == otherProt || reflect.DeepEqual(serverBlocks, otherServerBlocks) {
+						listener, ok := listeners[otherAddr]
+						if !ok {
+							listener = map[string]struct{}{}
+							listeners[otherAddr] = listener
+						}
+						listener[otherProt] = struct{}{}
+						delete(otherProtocolToServerBlocks, otherProt)
+					}
+				}
 			}
 
-	// sort them by their first address (we know there will always be at least one)
+			addresses := make([]string, 0, len(listeners))
-	// to avoid problems with non-deterministic ordering (makes tests flaky)
+			for lnAddr := range listeners {
-	sort.Slice(sbaddrs, func(i, j int) bool {
+				addresses = append(addresses, lnAddr)
-		return sbaddrs[i].addresses[0] < sbaddrs[j].addresses[0]
+			}
+			sort.Strings(addresses)
+
+			addressesWithProtocols := make([]addressWithProtocols, 0, len(listeners))
+
+			for _, lnAddr := range addresses {
+				lnProts := listeners[lnAddr]
+				prots := make([]string, 0, len(lnProts))
+				for prot := range lnProts {
+					prots = append(prots, prot)
+				}
+				sort.Strings(prots)
+
+				addressesWithProtocols = append(addressesWithProtocols, addressWithProtocols{
+					address:   lnAddr,
+					protocols: prots,
 				})
+			}
+
+			sbaddrs = append(sbaddrs, sbAddrAssociation{
+				addressesWithProtocols: addressesWithProtocols,
+				serverBlocks:           serverBlocks,
+			})
+		}
+	}
 
 	return sbaddrs
 }
 
-// listenerAddrsForServerBlockKey essentially converts the Caddyfile
+// listenersForServerBlockAddress essentially converts the Caddyfile site addresses to a map from
-// site addresses to Caddy listener addresses for each server block.
+// Caddy listener addresses and the protocols to serve them with to the parsed address for each server block.
-func (st *ServerType) listenerAddrsForServerBlockKey(sblock serverBlock, key string,
+func (st *ServerType) listenersForServerBlockAddress(sblock serverBlock, addr Address,
 	options map[string]any,
-) ([]string, error) {
+) (map[string]map[string]struct{}, error) {
-	addr, err := ParseAddress(key)
-	if err != nil {
-		return nil, fmt.Errorf("parsing key: %v", err)
-	}
-	addr = addr.Normalize()
-
 	switch addr.Scheme {
 	case "wss":
 		return nil, fmt.Errorf("the scheme wss:// is only supported in browsers; use https:// instead")
@@ -230,55 +303,58 @@ func (st *ServerType) listenerAddrsForServerBlockKey(sblock serverBlock, key str
 
 	// error if scheme and port combination violate convention
 	if (addr.Scheme == "http" && lnPort == httpsPort) || (addr.Scheme == "https" && lnPort == httpPort) {
-		return nil, fmt.Errorf("[%s] scheme and port violate convention", key)
+		return nil, fmt.Errorf("[%s] scheme and port violate convention", addr.String())
 	}
 
-	// the bind directive specifies hosts (and potentially network), but is optional
+	// the bind directive specifies hosts (and potentially network), and the protocols to serve them with, but is optional
-	lnHosts := make([]string, 0, len(sblock.pile["bind"]))
+	lnCfgVals := make([]addressesWithProtocols, 0, len(sblock.pile["bind"]))
 	for _, cfgVal := range sblock.pile["bind"] {
-		lnHosts = append(lnHosts, cfgVal.Value.([]string)...)
+		if val, ok := cfgVal.Value.(addressesWithProtocols); ok {
+			lnCfgVals = append(lnCfgVals, val)
+		}
+	}
+	if len(lnCfgVals) == 0 {
+		if defaultBindValues, ok := options["default_bind"].([]ConfigValue); ok {
+			for _, defaultBindValue := range defaultBindValues {
+				lnCfgVals = append(lnCfgVals, defaultBindValue.Value.(addressesWithProtocols))
 			}
-	if len(lnHosts) == 0 {
-		if defaultBind, ok := options["default_bind"].([]string); ok {
-			lnHosts = defaultBind
 		} else {
-			lnHosts = []string{""}
+			lnCfgVals = []addressesWithProtocols{{
+				addresses: []string{""},
+				protocols: nil,
+			}}
 		}
 	}
 
 	// use a map to prevent duplication
-	listeners := make(map[string]struct{})
+	listeners := map[string]map[string]struct{}{}
-	for _, lnHost := range lnHosts {
+	for _, lnCfgVal := range lnCfgVals {
-		// normally we would simply append the port,
+		for _, lnAddr := range lnCfgVal.addresses {
-		// but if lnHost is IPv6, we need to ensure it
+			lnNetw, lnHost, _, err := caddy.SplitNetworkAddress(lnAddr)
-		// is enclosed in [ ]; net.JoinHostPort does
+			if err != nil {
-		// this for us, but lnHost might also have a
+				return nil, fmt.Errorf("splitting listener address: %v", err)
-		// network type in front (e.g. "tcp/") leading
-		// to "[tcp/::1]" which causes parsing failures
-		// later; what we need is "tcp/[::1]", so we have
-		// to split the network and host, then re-combine
-		network, host, ok := strings.Cut(lnHost, "/")
-		if !ok {
-			host = network
-			network = ""
 			}
-		host = strings.Trim(host, "[]") // IPv6
+			networkAddr, err := caddy.ParseNetworkAddress(caddy.JoinNetworkAddress(lnNetw, lnHost, lnPort))
-		networkAddr := caddy.JoinNetworkAddress(network, host, lnPort)
-		addr, err := caddy.ParseNetworkAddress(networkAddr)
 			if err != nil {
 				return nil, fmt.Errorf("parsing network address: %v", err)
 			}
-		listeners[addr.String()] = struct{}{}
+			if _, ok := listeners[addr.String()]; !ok {
+				listeners[networkAddr.String()] = map[string]struct{}{}
+			}
+			for _, protocol := range lnCfgVal.protocols {
+				listeners[networkAddr.String()][protocol] = struct{}{}
+			}
+		}
 	}
 
-	// now turn map into list
+	return listeners, nil
-	listenersList := make([]string, 0, len(listeners))
+}
-	for lnStr := range listeners {
-		listenersList = append(listenersList, lnStr)
-	}
-	sort.Strings(listenersList)
 
-	return listenersList, nil
+// addressesWithProtocols associates a list of listen addresses
+// with a list of protocols to serve them with
+type addressesWithProtocols struct {
+	addresses []string
+	protocols []string
 }
 
 // Address represents a site address. It contains

caddyconfig/httpcaddyfile/builtins.go

@@ -24,7 +24,7 @@ import (
 	"time"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/mholt/acmez/v2/acme"
+	"github.com/mholt/acmez/v3/acme"
 	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
@@ -56,15 +56,35 @@ func init() {
 
 // parseBind parses the bind directive. Syntax:
 //
-//	bind <addresses...>
+//		bind <addresses...> [{
+//	   protocols [h1|h2|h2c|h3] [...]
+//	 }]
 func parseBind(h Helper) ([]ConfigValue, error) {
 	h.Next() // consume directive name
-	return []ConfigValue{{Class: "bind", Value: h.RemainingArgs()}}, nil
+	var addresses, protocols []string
+	addresses = h.RemainingArgs()
+
+	for h.NextBlock(0) {
+		switch h.Val() {
+		case "protocols":
+			protocols = h.RemainingArgs()
+			if len(protocols) == 0 {
+				return nil, h.Errf("protocols requires one or more arguments")
+			}
+		default:
+			return nil, h.Errf("unknown subdirective: %s", h.Val())
+		}
+	}
+
+	return []ConfigValue{{Class: "bind", Value: addressesWithProtocols{
+		addresses: addresses,
+		protocols: protocols,
+	}}}, nil
 }
 
 // parseTLS parses the tls directive. Syntax:
 //
-//	tls [<email>|internal]|[<cert_file> <key_file>] {
+//	tls [<email>|internal|force_automate]|[<cert_file> <key_file>] {
 //	    protocols <min> [<max>]
 //	    ciphers   <cipher_suites...>
 //	    curves    <curves...>
@@ -79,7 +99,7 @@ func parseBind(h Helper) ([]ConfigValue, error) {
 //	    ca                            <acme_ca_endpoint>
 //	    ca_root                       <pem_file>
 //	    key_type                      [ed25519|p256|p384|rsa2048|rsa4096]
-//	    dns                           <provider_name> [...]
+//	    dns                           [<provider_name> [...]]    (required, though, if DNS is not configured as global option)
 //	    propagation_delay             <duration>
 //	    propagation_timeout           <duration>
 //	    resolvers                     <dns_servers...>
@@ -87,6 +107,7 @@ func parseBind(h Helper) ([]ConfigValue, error) {
 //	    dns_challenge_override_domain <domain>
 //	    on_demand
 //	    reuse_private_keys
+//	    force_automate
 //	    eab                           <key_id> <mac_key>
 //	    issuer                        <module_name> [...]
 //	    get_certificate               <module_name> [...]
@@ -106,6 +127,7 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 	var certManagers []certmagic.Manager
 	var onDemand bool
 	var reusePrivateKeys bool
+	var forceAutomate bool
 
 	firstLine := h.RemainingArgs()
 	switch len(firstLine) {
@@ -113,8 +135,10 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 	case 1:
 		if firstLine[0] == "internal" {
 			internalIssuer = new(caddytls.InternalIssuer)
+		} else if firstLine[0] == "force_automate" {
+			forceAutomate = true
 		} else if !strings.Contains(firstLine[0], "@") {
-			return nil, h.Err("single argument must either be 'internal' or an email address")
+			return nil, h.Err("single argument must either be 'internal', 'force_automate', or an email address")
 		} else {
 			acmeIssuer = &caddytls.ACMEIssuer{
 				Email: firstLine[0],
@@ -288,10 +312,6 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 			certManagers = append(certManagers, certManager)
 
 		case "dns":
-			if !h.NextArg() {
-				return nil, h.ArgErr()
-			}
-			provName := h.Val()
 			if acmeIssuer == nil {
 				acmeIssuer = new(caddytls.ACMEIssuer)
 			}
@@ -301,12 +321,19 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 			if acmeIssuer.Challenges.DNS == nil {
 				acmeIssuer.Challenges.DNS = new(caddytls.DNSChallengeConfig)
 			}
+			// DNS provider configuration optional, since it may be configured globally via the TLS app with global options
+			if h.NextArg() {
+				provName := h.Val()
 				modID := "dns.providers." + provName
 				unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
 				if err != nil {
 					return nil, err
 				}
 				acmeIssuer.Challenges.DNS.ProviderRaw = caddyconfig.JSONModuleObject(unm, "name", provName, h.warnings)
+			} else if h.Option("dns") == nil {
+				// if DNS is omitted locally, it needs to be configured globally
+				return nil, h.ArgErr()
+			}
 
 		case "resolvers":
 			args := h.RemainingArgs()
@@ -549,6 +576,15 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 		})
 	}
 
+	// if enabled, the names in the site addresses will be
+	// added to the automation policies
+	if forceAutomate {
+		configVals = append(configVals, ConfigValue{
+			Class: "tls.force_automate",
+			Value: true,
+		})
+	}
+
 	// custom certificate selection
 	if len(certSelector.AnyTag) > 0 {
 		cp.CertSelection = &certSelector
@@ -961,6 +997,50 @@ func parseLogHelper(h Helper, globalLogNames map[string]struct{}) ([]ConfigValue
 			}
 			cl.WriterRaw = caddyconfig.JSONModuleObject(wo, "output", moduleName, h.warnings)
 
+		case "sampling":
+			d := h.Dispenser.NewFromNextSegment()
+			for d.NextArg() {
+				// consume any tokens on the same line, if any.
+			}
+
+			sampling := &caddy.LogSampling{}
+			for nesting := d.Nesting(); d.NextBlock(nesting); {
+				subdir := d.Val()
+				switch subdir {
+				case "interval":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					interval, err := time.ParseDuration(d.Val() + "ns")
+					if err != nil {
+						return nil, d.Errf("failed to parse interval: %v", err)
+					}
+					sampling.Interval = interval
+				case "first":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					first, err := strconv.Atoi(d.Val())
+					if err != nil {
+						return nil, d.Errf("failed to parse first: %v", err)
+					}
+					sampling.First = first
+				case "thereafter":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					thereafter, err := strconv.Atoi(d.Val())
+					if err != nil {
+						return nil, d.Errf("failed to parse thereafter: %v", err)
+					}
+					sampling.Thereafter = thereafter
+				default:
+					return nil, d.Errf("unrecognized subdirective: %s", subdir)
+				}
+			}
+
+			cl.Sampling = sampling
+
 		case "core":
 			if !h.NextArg() {
 				return nil, h.ArgErr()

caddyconfig/httpcaddyfile/builtins_test.go

@@ -62,6 +62,20 @@ func TestLogDirectiveSyntax(t *testing.T) {
 			output:      `{"logging":{"logs":{"default":{"exclude":["http.log.access.name-override"]},"name-override":{"writer":{"filename":"foo.log","output":"file"},"core":{"module":"mock"},"include":["http.log.access.name-override"]}}},"apps":{"http":{"servers":{"srv0":{"listen":[":8080"],"logs":{"default_logger_name":"name-override"}}}}}}`,
 			expectError: false,
 		},
+		{
+			input: `:8080 {
+				log {
+					sampling {
+						interval 2
+						first 3
+						thereafter 4
+					}
+				}
+			}
+			`,
+			output:      `{"logging":{"logs":{"default":{"exclude":["http.log.access.log0"]},"log0":{"sampling":{"interval":2,"first":3,"thereafter":4},"include":["http.log.access.log0"]}}},"apps":{"http":{"servers":{"srv0":{"listen":[":8080"],"logs":{"default_logger_name":"log0"}}}}}}`,
+			expectError: false,
+		},
 	} {
 
 		adapter := caddyfile.Adapter{

caddyconfig/httpcaddyfile/directives.go

@@ -17,6 +17,7 @@ package httpcaddyfile
 import (
 	"encoding/json"
 	"net"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -100,17 +101,6 @@ var defaultDirectiveOrder = []string{
 // plugins or by the user via the "order" global option.
 var directiveOrder = defaultDirectiveOrder
 
-// directiveIsOrdered returns true if dir is
-// a known, ordered (sorted) directive.
-func directiveIsOrdered(dir string) bool {
-	for _, d := range directiveOrder {
-		if d == dir {
-			return true
-		}
-	}
-	return false
-}
-
 // RegisterDirective registers a unique directive dir with an
 // associated unmarshaling (setup) function. When directive dir
 // is encountered in a Caddyfile, setupFunc will be called to
@@ -161,7 +151,7 @@ func RegisterHandlerDirective(dir string, setupFunc UnmarshalHandlerFunc) {
 // EXPERIMENTAL: This API may change or be removed.
 func RegisterDirectiveOrder(dir string, position Positional, standardDir string) {
 	// check if directive was already ordered
-	if directiveIsOrdered(dir) {
+	if slices.Contains(directiveOrder, dir) {
 		panic("directive '" + dir + "' already ordered")
 	}
 
@@ -172,12 +162,7 @@ func RegisterDirectiveOrder(dir string, position Positional, standardDir string)
 	// check if directive exists in standard distribution, since
 	// we can't allow plugins to depend on one another; we can't
 	// guarantee the order that plugins are loaded in.
-	foundStandardDir := false
+	foundStandardDir := slices.Contains(defaultDirectiveOrder, standardDir)
-	for _, d := range defaultDirectiveOrder {
-		if d == standardDir {
-			foundStandardDir = true
-		}
-	}
 	if !foundStandardDir {
 		panic("the 3rd argument '" + standardDir + "' must be a directive that exists in the standard distribution of Caddy")
 	}
@@ -533,7 +518,7 @@ func sortRoutes(routes []ConfigValue) {
 type serverBlock struct {
 	block      caddyfile.ServerBlock
 	pile       map[string][]ConfigValue // config values obtained from directives
-	keys  []Address
+	parsedKeys []Address
 }
 
 // hostsFromKeys returns a list of all the non-empty hostnames found in
@@ -550,7 +535,7 @@ type serverBlock struct {
 func (sb serverBlock) hostsFromKeys(loggerMode bool) []string {
 	// ensure each entry in our list is unique
 	hostMap := make(map[string]struct{})
-	for _, addr := range sb.keys {
+	for _, addr := range sb.parsedKeys {
 		if addr.Host == "" {
 			if !loggerMode {
 				// server block contains a key like ":443", i.e. the host portion
@@ -582,7 +567,7 @@ func (sb serverBlock) hostsFromKeys(loggerMode bool) []string {
 func (sb serverBlock) hostsFromKeysNotHTTP(httpPort string) []string {
 	// ensure each entry in our list is unique
 	hostMap := make(map[string]struct{})
-	for _, addr := range sb.keys {
+	for _, addr := range sb.parsedKeys {
 		if addr.Host == "" {
 			continue
 		}
@@ -603,23 +588,17 @@ func (sb serverBlock) hostsFromKeysNotHTTP(httpPort string) []string {
 // hasHostCatchAllKey returns true if sb has a key that
 // omits a host portion, i.e. it "catches all" hosts.
 func (sb serverBlock) hasHostCatchAllKey() bool {
-	for _, addr := range sb.keys {
+	return slices.ContainsFunc(sb.parsedKeys, func(addr Address) bool {
-		if addr.Host == "" {
+		return addr.Host == ""
-			return true
+	})
-		}
-	}
-	return false
 }
 
 // isAllHTTP returns true if all sb keys explicitly specify
 // the http:// scheme
 func (sb serverBlock) isAllHTTP() bool {
-	for _, addr := range sb.keys {
+	return !slices.ContainsFunc(sb.parsedKeys, func(addr Address) bool {
-		if addr.Scheme != "http" {
+		return addr.Scheme != "http"
-			return false
+	})
-		}
-	}
-	return true
 }
 
 // Positional are the supported modes for ordering directives.

caddyconfig/httpcaddyfile/directives_test.go

@@ -78,7 +78,7 @@ func TestHostsFromKeys(t *testing.T) {
 			[]string{"example.com:2015"},
 		},
 	} {
-		sb := serverBlock{keys: tc.keys}
+		sb := serverBlock{parsedKeys: tc.keys}
 
 		// test in normal mode
 		actual := sb.hostsFromKeys(false)

caddyconfig/httpcaddyfile/httptype.go

@@ -15,6 +15,7 @@
 package httpcaddyfile
 
 import (
+	"cmp"
 	"encoding/json"
 	"fmt"
 	"net"
@@ -171,7 +172,7 @@ func (st ServerType) Setup(
 	}
 
 	// map
-	sbmap, err := st.mapAddressToServerBlocks(originalServerBlocks, options)
+	sbmap, err := st.mapAddressToProtocolToServerBlocks(originalServerBlocks, options)
 	if err != nil {
 		return nil, warnings, err
 	}
@@ -186,12 +187,25 @@ func (st ServerType) Setup(
 		return nil, warnings, err
 	}
 
+	// hoist the metrics config from per-server to global
+	metrics, _ := options["metrics"].(*caddyhttp.Metrics)
+	for _, s := range servers {
+		if s.Metrics != nil {
+			metrics = cmp.Or(metrics, &caddyhttp.Metrics{})
+			metrics = &caddyhttp.Metrics{
+				PerHost: metrics.PerHost || s.Metrics.PerHost,
+			}
+			s.Metrics = nil // we don't need it anymore
+		}
+	}
+
 	// now that each server is configured, make the HTTP app
 	httpApp := caddyhttp.App{
 		HTTPPort:      tryInt(options["http_port"], &warnings),
 		HTTPSPort:     tryInt(options["https_port"], &warnings),
 		GracePeriod:   tryDuration(options["grace_period"], &warnings),
 		ShutdownDelay: tryDuration(options["shutdown_delay"], &warnings),
+		Metrics:       metrics,
 		Servers:       servers,
 	}
 
@@ -336,7 +350,7 @@ func (st ServerType) Setup(
 
 				// avoid duplicates by sorting + compacting
 				sort.Strings(defaultLog.Exclude)
-				defaultLog.Exclude = slices.Compact[[]string, string](defaultLog.Exclude)
+				defaultLog.Exclude = slices.Compact(defaultLog.Exclude)
 			}
 		}
 		// we may have not actually added anything, so remove if empty
@@ -402,6 +416,20 @@ func (ServerType) evaluateGlobalOptionsBlock(serverBlocks []serverBlock, options
 			options[opt] = append(existingOpts, logOpts...)
 			continue
 		}
+		// Also fold multiple "default_bind" options together into an
+		// array so that server blocks can have multiple binds by default.
+		if opt == "default_bind" {
+			existingOpts, ok := options[opt].([]ConfigValue)
+			if !ok {
+				existingOpts = []ConfigValue{}
+			}
+			defaultBindOpts, ok := val.([]ConfigValue)
+			if !ok {
+				return nil, fmt.Errorf("unexpected type from 'default_bind' global options: %T", val)
+			}
+			options[opt] = append(existingOpts, defaultBindOpts...)
+			continue
+		}
 
 		options[opt] = val
 	}
@@ -520,8 +548,8 @@ func (st *ServerType) serversFromPairings(
 	if hsp, ok := options["https_port"].(int); ok {
 		httpsPort = strconv.Itoa(hsp)
 	}
-	autoHTTPS := "on"
+	autoHTTPS := []string{}
-	if ah, ok := options["auto_https"].(string); ok {
+	if ah, ok := options["auto_https"].([]string); ok {
 		autoHTTPS = ah
 	}
 
@@ -536,29 +564,81 @@ func (st *ServerType) serversFromPairings(
 					if k == j {
 						continue
 					}
-					if sliceContains(sblock2.block.GetKeysText(), key) {
+					if slices.Contains(sblock2.block.GetKeysText(), key) {
 						return nil, fmt.Errorf("ambiguous site definition: %s", key)
 					}
 				}
 			}
 		}
 
+		var (
+			addresses []string
+			protocols [][]string
+		)
+
+		for _, addressWithProtocols := range p.addressesWithProtocols {
+			addresses = append(addresses, addressWithProtocols.address)
+			protocols = append(protocols, addressWithProtocols.protocols)
+		}
+
 		srv := &caddyhttp.Server{
-			Listen: p.addresses,
+			Listen:          addresses,
+			ListenProtocols: protocols,
+		}
+
+		// remove srv.ListenProtocols[j] if it only contains the default protocols
+		for j, lnProtocols := range srv.ListenProtocols {
+			srv.ListenProtocols[j] = nil
+			for _, lnProtocol := range lnProtocols {
+				if lnProtocol != "" {
+					srv.ListenProtocols[j] = lnProtocols
+					break
+				}
+			}
+		}
+
+		// remove srv.ListenProtocols if it only contains the default protocols for all listen addresses
+		listenProtocols := srv.ListenProtocols
+		srv.ListenProtocols = nil
+		for _, lnProtocols := range listenProtocols {
+			if lnProtocols != nil {
+				srv.ListenProtocols = listenProtocols
+				break
+			}
 		}
 
 		// handle the auto_https global option
-		if autoHTTPS != "on" {
+		for _, val := range autoHTTPS {
-			srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+			switch val {
-			switch autoHTTPS {
 			case "off":
+				if srv.AutoHTTPS == nil {
+					srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+				}
 				srv.AutoHTTPS.Disabled = true
+
 			case "disable_redirects":
+				if srv.AutoHTTPS == nil {
+					srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+				}
 				srv.AutoHTTPS.DisableRedir = true
+
 			case "disable_certs":
+				if srv.AutoHTTPS == nil {
+					srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+				}
 				srv.AutoHTTPS.DisableCerts = true
+
 			case "ignore_loaded_certs":
+				if srv.AutoHTTPS == nil {
+					srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+				}
 				srv.AutoHTTPS.IgnoreLoadedCerts = true
+
+			case "prefer_wildcard":
+				if srv.AutoHTTPS == nil {
+					srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
+				}
+				srv.AutoHTTPS.PreferWildcard = true
 			}
 		}
 
@@ -566,7 +646,7 @@ func (st *ServerType) serversFromPairings(
 		// See ParseAddress() where parsing should later reject paths
 		// See https://github.com/caddyserver/caddy/pull/4728 for a full explanation
 		for _, sblock := range p.serverBlocks {
-			for _, addr := range sblock.keys {
+			for _, addr := range sblock.parsedKeys {
 				if addr.Path != "" {
 					caddy.Log().Named("caddyfile").Warn("Using a path in a site address is deprecated; please use the 'handle' directive instead", zap.String("address", addr.String()))
 				}
@@ -584,7 +664,7 @@ func (st *ServerType) serversFromPairings(
 			var iLongestPath, jLongestPath string
 			var iLongestHost, jLongestHost string
 			var iWildcardHost, jWildcardHost bool
-			for _, addr := range p.serverBlocks[i].keys {
+			for _, addr := range p.serverBlocks[i].parsedKeys {
 				if strings.Contains(addr.Host, "*") || addr.Host == "" {
 					iWildcardHost = true
 				}
@@ -595,7 +675,7 @@ func (st *ServerType) serversFromPairings(
 					iLongestPath = addr.Path
 				}
 			}
-			for _, addr := range p.serverBlocks[j].keys {
+			for _, addr := range p.serverBlocks[j].parsedKeys {
 				if strings.Contains(addr.Host, "*") || addr.Host == "" {
 					jWildcardHost = true
 				}
@@ -626,8 +706,18 @@ func (st *ServerType) serversFromPairings(
 			return specificity(iLongestHost) > specificity(jLongestHost)
 		})
 
+		// collect all hosts that have a wildcard in them
+		wildcardHosts := []string{}
+		for _, sblock := range p.serverBlocks {
+			for _, addr := range sblock.parsedKeys {
+				if strings.HasPrefix(addr.Host, "*.") {
+					wildcardHosts = append(wildcardHosts, addr.Host[2:])
+				}
+			}
+		}
+
 		var hasCatchAllTLSConnPolicy, addressQualifiesForTLS bool
-		autoHTTPSWillAddConnPolicy := autoHTTPS != "off"
+		autoHTTPSWillAddConnPolicy := srv.AutoHTTPS == nil || !srv.AutoHTTPS.Disabled
 
 		// if needed, the ServerLogConfig is initialized beforehand so
 		// that all server blocks can populate it with data, even when not
@@ -673,6 +763,14 @@ func (st *ServerType) serversFromPairings(
 				}
 			}
 
+			// collect hosts that are forced to be automated
+			forceAutomatedNames := make(map[string]struct{})
+			if _, ok := sblock.pile["tls.force_automate"]; ok {
+				for _, host := range hosts {
+					forceAutomatedNames[host] = struct{}{}
+				}
+			}
+
 			// tls: connection policies
 			if cpVals, ok := sblock.pile["tls.connection_policy"]; ok {
 				// tls connection policies
@@ -704,14 +802,14 @@ func (st *ServerType) serversFromPairings(
 					}
 
 					// only append this policy if it actually changes something
-					if !cp.SettingsEmpty() {
+					if !cp.SettingsEmpty() || mapContains(forceAutomatedNames, hosts) {
 						srv.TLSConnPolicies = append(srv.TLSConnPolicies, cp)
 						hasCatchAllTLSConnPolicy = len(hosts) == 0
 					}
 				}
 			}
 
-			for _, addr := range sblock.keys {
+			for _, addr := range sblock.parsedKeys {
 				// if server only uses HTTP port, auto-HTTPS will not apply
 				if listenersUseAnyPortOtherThan(srv.Listen, httpPort) {
 					// exclude any hosts that were defined explicitly with "http://"
@@ -720,7 +818,7 @@ func (st *ServerType) serversFromPairings(
 						if srv.AutoHTTPS == nil {
 							srv.AutoHTTPS = new(caddyhttp.AutoHTTPSConfig)
 						}
-						if !sliceContains(srv.AutoHTTPS.Skip, addr.Host) {
+						if !slices.Contains(srv.AutoHTTPS.Skip, addr.Host) {
 							srv.AutoHTTPS.Skip = append(srv.AutoHTTPS.Skip, addr.Host)
 						}
 					}
@@ -734,7 +832,7 @@ func (st *ServerType) serversFromPairings(
 				// https://caddy.community/t/making-sense-of-auto-https-and-why-disabling-it-still-serves-https-instead-of-http/9761
 				createdTLSConnPolicies, ok := sblock.pile["tls.connection_policy"]
 				hasTLSEnabled := (ok && len(createdTLSConnPolicies) > 0) ||
-					(addr.Host != "" && srv.AutoHTTPS != nil && !sliceContains(srv.AutoHTTPS.Skip, addr.Host))
+					(addr.Host != "" && srv.AutoHTTPS != nil && !slices.Contains(srv.AutoHTTPS.Skip, addr.Host))
 
 				// we'll need to remember if the address qualifies for auto-HTTPS, so we
 				// can add a TLS conn policy if necessary
@@ -742,6 +840,19 @@ func (st *ServerType) serversFromPairings(
 					(addr.Scheme != "http" && addr.Port != httpPort && hasTLSEnabled) {
 					addressQualifiesForTLS = true
 				}
+
+				// If prefer wildcard is enabled, then we add hosts that are
+				// already covered by the wildcard to the skip list
+				if addressQualifiesForTLS && srv.AutoHTTPS != nil && srv.AutoHTTPS.PreferWildcard {
+					baseDomain := addr.Host
+					if idx := strings.Index(baseDomain, "."); idx != -1 {
+						baseDomain = baseDomain[idx+1:]
+					}
+					if !strings.HasPrefix(addr.Host, "*.") && slices.Contains(wildcardHosts, baseDomain) {
+						srv.AutoHTTPS.SkipCerts = append(srv.AutoHTTPS.SkipCerts, addr.Host)
+					}
+				}
+
 				// predict whether auto-HTTPS will add the conn policy for us; if so, we
 				// may not need to add one for this server
 				autoHTTPSWillAddConnPolicy = autoHTTPSWillAddConnPolicy &&
@@ -873,7 +984,10 @@ func (st *ServerType) serversFromPairings(
 		if addressQualifiesForTLS &&
 			!hasCatchAllTLSConnPolicy &&
 			(len(srv.TLSConnPolicies) > 0 || !autoHTTPSWillAddConnPolicy || defaultSNI != "" || fallbackSNI != "") {
-			srv.TLSConnPolicies = append(srv.TLSConnPolicies, &caddytls.ConnectionPolicy{DefaultSNI: defaultSNI, FallbackSNI: fallbackSNI})
+			srv.TLSConnPolicies = append(srv.TLSConnPolicies, &caddytls.ConnectionPolicy{
+				DefaultSNI:  defaultSNI,
+				FallbackSNI: fallbackSNI,
+			})
 		}
 
 		// tidy things up a bit
@@ -886,8 +1000,7 @@ func (st *ServerType) serversFromPairings(
 		servers[fmt.Sprintf("srv%d", i)] = srv
 	}
 
-	err := applyServerOptions(servers, options, warnings)
+	if err := applyServerOptions(servers, options, warnings); err != nil {
-	if err != nil {
 		return nil, fmt.Errorf("applying global server options: %v", err)
 	}
 
@@ -932,7 +1045,7 @@ func detectConflictingSchemes(srv *caddyhttp.Server, serverBlocks []serverBlock,
 	}
 
 	for _, sblock := range serverBlocks {
-		for _, addr := range sblock.keys {
+		for _, addr := range sblock.parsedKeys {
 			if addr.Scheme == "http" || addr.Port == httpPort {
 				if err := checkAndSetHTTP(addr); err != nil {
 					return err
@@ -1008,6 +1121,12 @@ func consolidateConnPolicies(cps caddytls.ConnectionPolicies) (caddytls.Connecti
 					return nil, fmt.Errorf("two policies with same match criteria have conflicting default SNI: %s vs. %s",
 						cps[i].DefaultSNI, cps[j].DefaultSNI)
 				}
+				if cps[i].FallbackSNI != "" &&
+					cps[j].FallbackSNI != "" &&
+					cps[i].FallbackSNI != cps[j].FallbackSNI {
+					return nil, fmt.Errorf("two policies with same match criteria have conflicting fallback SNI: %s vs. %s",
+						cps[i].FallbackSNI, cps[j].FallbackSNI)
+				}
 				if cps[i].ProtocolMin != "" &&
 					cps[j].ProtocolMin != "" &&
 					cps[i].ProtocolMin != cps[j].ProtocolMin {
@@ -1048,6 +1167,9 @@ func consolidateConnPolicies(cps caddytls.ConnectionPolicies) (caddytls.Connecti
 				if cps[i].DefaultSNI == "" && cps[j].DefaultSNI != "" {
 					cps[i].DefaultSNI = cps[j].DefaultSNI
 				}
+				if cps[i].FallbackSNI == "" && cps[j].FallbackSNI != "" {
+					cps[i].FallbackSNI = cps[j].FallbackSNI
+				}
 				if cps[i].ProtocolMin == "" && cps[j].ProtocolMin != "" {
 					cps[i].ProtocolMin = cps[j].ProtocolMin
 				}
@@ -1061,7 +1183,7 @@ func consolidateConnPolicies(cps caddytls.ConnectionPolicies) (caddytls.Connecti
 				} else if cps[i].CertSelection != nil && cps[j].CertSelection != nil {
 					// if both have one, then combine AnyTag
 					for _, tag := range cps[j].CertSelection.AnyTag {
-						if !sliceContains(cps[i].CertSelection.AnyTag, tag) {
+						if !slices.Contains(cps[i].CertSelection.AnyTag, tag) {
 							cps[i].CertSelection.AnyTag = append(cps[i].CertSelection.AnyTag, tag)
 						}
 					}
@@ -1144,7 +1266,7 @@ func appendSubrouteToRouteList(routeList caddyhttp.RouteList,
 func buildSubroute(routes []ConfigValue, groupCounter counter, needsSorting bool) (*caddyhttp.Subroute, error) {
 	if needsSorting {
 		for _, val := range routes {
-			if !directiveIsOrdered(val.directive) {
+			if !slices.Contains(directiveOrder, val.directive) {
 				return nil, fmt.Errorf("directive '%s' is not an ordered HTTP handler, so it cannot be used here - try placing within a route block or using the order global option", val.directive)
 			}
 		}
@@ -1322,7 +1444,7 @@ func (st *ServerType) compileEncodedMatcherSets(sblock serverBlock) ([]caddy.Mod
 	var matcherPairs []*hostPathPair
 
 	var catchAllHosts bool
-	for _, addr := range sblock.keys {
+	for _, addr := range sblock.parsedKeys {
 		// choose a matcher pair that should be shared by this
 		// server block; if none exists yet, create one
 		var chosenMatcherPair *hostPathPair
@@ -1354,25 +1476,16 @@ func (st *ServerType) compileEncodedMatcherSets(sblock serverBlock) ([]caddy.Mod
 
 		// add this server block's keys to the matcher
 		// pair if it doesn't already exist
-		if addr.Host != "" {
+		if addr.Host != "" && !slices.Contains(chosenMatcherPair.hostm, addr.Host) {
-			var found bool
-			for _, h := range chosenMatcherPair.hostm {
-				if h == addr.Host {
-					found = true
-					break
-				}
-			}
-			if !found {
 			chosenMatcherPair.hostm = append(chosenMatcherPair.hostm, addr.Host)
 		}
 	}
-	}
 
 	// iterate each pairing of host and path matchers and
 	// put them into a map for JSON encoding
-	var matcherSets []map[string]caddyhttp.RequestMatcher
+	var matcherSets []map[string]caddyhttp.RequestMatcherWithError
 	for _, mp := range matcherPairs {
-		matcherSet := make(map[string]caddyhttp.RequestMatcher)
+		matcherSet := make(map[string]caddyhttp.RequestMatcherWithError)
 		if len(mp.hostm) > 0 {
 			matcherSet["host"] = mp.hostm
 		}
@@ -1431,13 +1544,18 @@ func parseMatcherDefinitions(d *caddyfile.Dispenser, matchers map[string]caddy.M
 		if err != nil {
 			return err
 		}
-		rm, ok := unm.(caddyhttp.RequestMatcher)
+
-		if !ok {
+		if rm, ok := unm.(caddyhttp.RequestMatcherWithError); ok {
-			return fmt.Errorf("matcher module '%s' is not a request matcher", matcherName)
-		}
 			matchers[definitionName][matcherName] = caddyconfig.JSON(rm, nil)
 			return nil
 		}
+		// nolint:staticcheck
+		if rm, ok := unm.(caddyhttp.RequestMatcher); ok {
+			matchers[definitionName][matcherName] = caddyconfig.JSON(rm, nil)
+			return nil
+		}
+		return fmt.Errorf("matcher module '%s' is not a request matcher", matcherName)
+	}
 
 	// if the next token is quoted, we can assume it's not a matcher name
 	// and that it's probably an 'expression' matcher
@@ -1480,7 +1598,7 @@ func parseMatcherDefinitions(d *caddyfile.Dispenser, matchers map[string]caddy.M
 	return nil
 }
 
-func encodeMatcherSet(matchers map[string]caddyhttp.RequestMatcher) (caddy.ModuleMap, error) {
+func encodeMatcherSet(matchers map[string]caddyhttp.RequestMatcherWithError) (caddy.ModuleMap, error) {
 	msEncoded := make(caddy.ModuleMap)
 	for matcherName, val := range matchers {
 		jsonBytes, err := json.Marshal(val)
@@ -1540,16 +1658,6 @@ func tryDuration(val any, warnings *[]caddyconfig.Warning) caddy.Duration {
 	return durationVal
 }
 
-// sliceContains returns true if needle is in haystack.
-func sliceContains(haystack []string, needle string) bool {
-	for _, s := range haystack {
-		if s == needle {
-			return true
-		}
-	}
-	return false
-}
-
 // listenersUseAnyPortOtherThan returns true if there are any
 // listeners in addresses that use a port which is not otherPort.
 // Mostly borrowed from unexported method in caddyhttp package.
@@ -1570,6 +1678,18 @@ func listenersUseAnyPortOtherThan(addresses []string, otherPort string) bool {
 	return false
 }
 
+func mapContains[K comparable, V any](m map[K]V, keys []K) bool {
+	if len(m) == 0 || len(keys) == 0 {
+		return false
+	}
+	for _, key := range keys {
+		if _, ok := m[key]; ok {
+			return true
+		}
+	}
+	return false
+}
+
 // specificity returns len(s) minus any wildcards (*) and
 // placeholders ({...}). Basically, it's a length count
 // that penalizes the use of wildcards and placeholders.
@@ -1613,11 +1733,18 @@ type namedCustomLog struct {
 	noHostname bool
 }
 
+// addressWithProtocols associates a listen address with
+// the protocols to serve it with
+type addressWithProtocols struct {
+	address   string
+	protocols []string
+}
+
 // sbAddrAssociation is a mapping from a list of
-// addresses to a list of server blocks that are
+// addresses with protocols, and a list of server
-// served on those addresses.
+// blocks that are served on those addresses.
 type sbAddrAssociation struct {
-	addresses    []string
+	addressesWithProtocols []addressWithProtocols
 	serverBlocks           []serverBlock
 }
 

caddyconfig/httpcaddyfile/options.go

@@ -15,14 +15,17 @@
 package httpcaddyfile
 
 import (
+	"slices"
 	"strconv"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/mholt/acmez/v2/acme"
+	"github.com/libdns/libdns"
+	"github.com/mholt/acmez/v3/acme"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
+	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 	"github.com/caddyserver/caddy/v2/modules/caddytls"
 )
 
@@ -30,19 +33,20 @@ func init() {
 	RegisterGlobalOption("debug", parseOptTrue)
 	RegisterGlobalOption("http_port", parseOptHTTPPort)
 	RegisterGlobalOption("https_port", parseOptHTTPSPort)
-	RegisterGlobalOption("default_bind", parseOptStringList)
+	RegisterGlobalOption("default_bind", parseOptDefaultBind)
 	RegisterGlobalOption("grace_period", parseOptDuration)
 	RegisterGlobalOption("shutdown_delay", parseOptDuration)
 	RegisterGlobalOption("default_sni", parseOptSingleString)
 	RegisterGlobalOption("fallback_sni", parseOptSingleString)
 	RegisterGlobalOption("order", parseOptOrder)
 	RegisterGlobalOption("storage", parseOptStorage)
-	RegisterGlobalOption("storage_clean_interval", parseOptDuration)
+	RegisterGlobalOption("storage_check", parseStorageCheck)
+	RegisterGlobalOption("storage_clean_interval", parseStorageCleanInterval)
 	RegisterGlobalOption("renew_interval", parseOptDuration)
 	RegisterGlobalOption("ocsp_interval", parseOptDuration)
 	RegisterGlobalOption("acme_ca", parseOptSingleString)
 	RegisterGlobalOption("acme_ca_root", parseOptSingleString)
-	RegisterGlobalOption("acme_dns", parseOptACMEDNS)
+	RegisterGlobalOption("acme_dns", parseOptDNS)
 	RegisterGlobalOption("acme_eab", parseOptACMEEAB)
 	RegisterGlobalOption("cert_issuer", parseOptCertIssuer)
 	RegisterGlobalOption("skip_install_trust", parseOptTrue)
@@ -52,12 +56,15 @@ func init() {
 	RegisterGlobalOption("local_certs", parseOptTrue)
 	RegisterGlobalOption("key_type", parseOptSingleString)
 	RegisterGlobalOption("auto_https", parseOptAutoHTTPS)
+	RegisterGlobalOption("metrics", parseMetricsOptions)
 	RegisterGlobalOption("servers", parseServerOptions)
 	RegisterGlobalOption("ocsp_stapling", parseOCSPStaplingOptions)
 	RegisterGlobalOption("cert_lifetime", parseOptDuration)
 	RegisterGlobalOption("log", parseLogOptions)
 	RegisterGlobalOption("preferred_chains", parseOptPreferredChains)
 	RegisterGlobalOption("persist_config", parseOptPersistConfig)
+	RegisterGlobalOption("dns", parseOptDNS)
+	RegisterGlobalOption("ech", parseOptECH)
 }
 
 func parseOptTrue(d *caddyfile.Dispenser, _ any) (any, error) { return true, nil }
@@ -110,17 +117,12 @@ func parseOptOrder(d *caddyfile.Dispenser, _ any) (any, error) {
 	}
 	pos := Positional(d.Val())
 
-	newOrder := directiveOrder
+	// if directive already had an order, drop it
+	newOrder := slices.DeleteFunc(directiveOrder, func(d string) bool {
+		return d == dirName
+	})
 
-	// if directive exists, first remove it
+	// act on the positional; if it's First or Last, we're done right away
-	for i, d := range newOrder {
-		if d == dirName {
-			newOrder = append(newOrder[:i], newOrder[i+1:]...)
-			break
-		}
-	}
-
-	// act on the positional
 	switch pos {
 	case First:
 		newOrder = append([]string{dirName}, newOrder...)
@@ -129,6 +131,7 @@ func parseOptOrder(d *caddyfile.Dispenser, _ any) (any, error) {
 		}
 		directiveOrder = newOrder
 		return newOrder, nil
+
 	case Last:
 		newOrder = append(newOrder, dirName)
 		if d.NextArg() {
@@ -136,8 +139,11 @@ func parseOptOrder(d *caddyfile.Dispenser, _ any) (any, error) {
 		}
 		directiveOrder = newOrder
 		return newOrder, nil
+
+	// if it's Before or After, continue
 	case Before:
 	case After:
+
 	default:
 		return nil, d.Errf("unknown positional '%s'", pos)
 	}
@@ -151,17 +157,17 @@ func parseOptOrder(d *caddyfile.Dispenser, _ any) (any, error) {
 		return nil, d.ArgErr()
 	}
 
-	// insert directive into proper position
+	// get the position of the target directive
-	for i, d := range newOrder {
+	targetIndex := slices.Index(newOrder, otherDir)
-		if d == otherDir {
+	if targetIndex == -1 {
-			if pos == Before {
+		return nil, d.Errf("directive '%s' not found", otherDir)
-				newOrder = append(newOrder[:i], append([]string{dirName}, newOrder[i:]...)...)
-			} else if pos == After {
-				newOrder = append(newOrder[:i+1], append([]string{dirName}, newOrder[i+1:]...)...)
-			}
-			break
 	}
+	// if we're inserting after, we need to increment the index to go after
+	if pos == After {
+		targetIndex++
 	}
+	// insert the directive into the new order
+	newOrder = slices.Insert(newOrder, targetIndex, dirName)
 
 	directiveOrder = newOrder
 
@@ -187,6 +193,40 @@ func parseOptStorage(d *caddyfile.Dispenser, _ any) (any, error) {
 	return storage, nil
 }
 
+func parseStorageCheck(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+	if !d.Next() {
+		return "", d.ArgErr()
+	}
+	val := d.Val()
+	if d.Next() {
+		return "", d.ArgErr()
+	}
+	if val != "off" {
+		return "", d.Errf("storage_check must be 'off'")
+	}
+	return val, nil
+}
+
+func parseStorageCleanInterval(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+	if !d.Next() {
+		return "", d.ArgErr()
+	}
+	val := d.Val()
+	if d.Next() {
+		return "", d.ArgErr()
+	}
+	if val == "off" {
+		return false, nil
+	}
+	dur, err := caddy.ParseDuration(d.Val())
+	if err != nil {
+		return nil, d.Errf("failed to parse storage_clean_interval, must be a duration or 'off' %w", err)
+	}
+	return caddy.Duration(dur), nil
+}
+
 func parseOptDuration(d *caddyfile.Dispenser, _ any) (any, error) {
 	if !d.Next() { // consume option name
 		return nil, d.ArgErr()
@@ -201,25 +241,6 @@ func parseOptDuration(d *caddyfile.Dispenser, _ any) (any, error) {
 	return caddy.Duration(dur), nil
 }
 
-func parseOptACMEDNS(d *caddyfile.Dispenser, _ any) (any, error) {
-	if !d.Next() { // consume option name
-		return nil, d.ArgErr()
-	}
-	if !d.Next() { // get DNS module name
-		return nil, d.ArgErr()
-	}
-	modID := "dns.providers." + d.Val()
-	unm, err := caddyfile.UnmarshalModule(d, modID)
-	if err != nil {
-		return nil, err
-	}
-	prov, ok := unm.(certmagic.DNSProvider)
-	if !ok {
-		return nil, d.Errf("module %s (%T) is not a certmagic.DNSProvider", modID, unm)
-	}
-	return prov, nil
-}
-
 func parseOptACMEEAB(d *caddyfile.Dispenser, _ any) (any, error) {
 	eab := new(acme.EAB)
 	d.Next() // consume option name
@@ -284,13 +305,32 @@ func parseOptSingleString(d *caddyfile.Dispenser, _ any) (any, error) {
 	return val, nil
 }
 
-func parseOptStringList(d *caddyfile.Dispenser, _ any) (any, error) {
+func parseOptDefaultBind(d *caddyfile.Dispenser, _ any) (any, error) {
 	d.Next() // consume option name
-	val := d.RemainingArgs()
+
-	if len(val) == 0 {
+	var addresses, protocols []string
-		return "", d.ArgErr()
+	addresses = d.RemainingArgs()
+
+	if len(addresses) == 0 {
+		addresses = append(addresses, "")
 	}
-	return val, nil
+
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "protocols":
+			protocols = d.RemainingArgs()
+			if len(protocols) == 0 {
+				return nil, d.Errf("protocols requires one or more arguments")
+			}
+		default:
+			return nil, d.Errf("unknown subdirective: %s", d.Val())
+		}
+	}
+
+	return []ConfigValue{{Class: "bind", Value: addressesWithProtocols{
+		addresses: addresses,
+		protocols: protocols,
+	}}}, nil
 }
 
 func parseOptAdmin(d *caddyfile.Dispenser, _ any) (any, error) {
@@ -375,36 +415,10 @@ func parseOptOnDemand(d *caddyfile.Dispenser, _ any) (any, error) {
 			ond.PermissionRaw = caddyconfig.JSONModuleObject(perm, "module", modName, nil)
 
 		case "interval":
-			if !d.NextArg() {
+			return nil, d.Errf("the on_demand_tls 'interval' option is no longer supported, remove it from your config")
-				return nil, d.ArgErr()
-			}
-			dur, err := caddy.ParseDuration(d.Val())
-			if err != nil {
-				return nil, err
-			}
-			if ond == nil {
-				ond = new(caddytls.OnDemandConfig)
-			}
-			if ond.RateLimit == nil {
-				ond.RateLimit = new(caddytls.RateLimit)
-			}
-			ond.RateLimit.Interval = caddy.Duration(dur)
 
 		case "burst":
-			if !d.NextArg() {
+			return nil, d.Errf("the on_demand_tls 'burst' option is no longer supported, remove it from your config")
-				return nil, d.ArgErr()
-			}
-			burst, err := strconv.Atoi(d.Val())
-			if err != nil {
-				return nil, err
-			}
-			if ond == nil {
-				ond = new(caddytls.OnDemandConfig)
-			}
-			if ond.RateLimit == nil {
-				ond.RateLimit = new(caddytls.RateLimit)
-			}
-			ond.RateLimit.Burst = burst
 
 		default:
 			return nil, d.Errf("unrecognized parameter '%s'", d.Val())
@@ -433,19 +447,44 @@ func parseOptPersistConfig(d *caddyfile.Dispenser, _ any) (any, error) {
 
 func parseOptAutoHTTPS(d *caddyfile.Dispenser, _ any) (any, error) {
 	d.Next() // consume option name
-	if !d.Next() {
+	val := d.RemainingArgs()
+	if len(val) == 0 {
 		return "", d.ArgErr()
 	}
-	val := d.Val()
+	for _, v := range val {
-	if d.Next() {
+		switch v {
-		return "", d.ArgErr()
+		case "off":
+		case "disable_redirects":
+		case "disable_certs":
+		case "ignore_loaded_certs":
+		case "prefer_wildcard":
+			break
+
+		default:
+			return "", d.Errf("auto_https must be one of 'off', 'disable_redirects', 'disable_certs', 'ignore_loaded_certs', or 'prefer_wildcard'")
 		}
-	if val != "off" && val != "disable_redirects" && val != "disable_certs" && val != "ignore_loaded_certs" {
-		return "", d.Errf("auto_https must be one of 'off', 'disable_redirects', 'disable_certs', or 'ignore_loaded_certs'")
 	}
 	return val, nil
 }
 
+func unmarshalCaddyfileMetricsOptions(d *caddyfile.Dispenser) (any, error) {
+	d.Next() // consume option name
+	metrics := new(caddyhttp.Metrics)
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "per_host":
+			metrics.PerHost = true
+		default:
+			return nil, d.Errf("unrecognized servers option '%s'", d.Val())
+		}
+	}
+	return metrics, nil
+}
+
+func parseMetricsOptions(d *caddyfile.Dispenser, _ any) (any, error) {
+	return unmarshalCaddyfileMetricsOptions(d)
+}
+
 func parseServerOptions(d *caddyfile.Dispenser, _ any) (any, error) {
 	return unmarshalCaddyfileServerOptions(d)
 }
@@ -515,3 +554,68 @@ func parseOptPreferredChains(d *caddyfile.Dispenser, _ any) (any, error) {
 	d.Next()
 	return caddytls.ParseCaddyfilePreferredChainsOptions(d)
 }
+
+func parseOptDNS(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+
+	if !d.Next() { // get DNS module name
+		return nil, d.ArgErr()
+	}
+	modID := "dns.providers." + d.Val()
+	unm, err := caddyfile.UnmarshalModule(d, modID)
+	if err != nil {
+		return nil, err
+	}
+	switch unm.(type) {
+	case libdns.RecordGetter,
+		libdns.RecordSetter,
+		libdns.RecordAppender,
+		libdns.RecordDeleter:
+	default:
+		return nil, d.Errf("module %s (%T) is not a libdns provider", modID, unm)
+	}
+	return unm, nil
+}
+
+func parseOptECH(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+
+	ech := new(caddytls.ECH)
+
+	publicNames := d.RemainingArgs()
+	for _, publicName := range publicNames {
+		ech.Configs = append(ech.Configs, caddytls.ECHConfiguration{
+			PublicName: publicName,
+		})
+	}
+	if len(ech.Configs) == 0 {
+		return nil, d.ArgErr()
+	}
+
+	for nesting := d.Nesting(); d.NextBlock(nesting); {
+		switch d.Val() {
+		case "dns":
+			if !d.Next() {
+				return nil, d.ArgErr()
+			}
+			providerName := d.Val()
+			modID := "dns.providers." + providerName
+			unm, err := caddyfile.UnmarshalModule(d, modID)
+			if err != nil {
+				return nil, err
+			}
+			ech.Publication = append(ech.Publication, &caddytls.ECHPublication{
+				Configs: publicNames,
+				PublishersRaw: caddy.ModuleMap{
+					"dns": caddyconfig.JSON(caddytls.ECHDNSPublisher{
+						ProviderRaw: caddyconfig.JSONModuleObject(unm, "name", providerName, nil),
+					}, nil),
+				},
+			})
+		default:
+			return nil, d.Errf("ech: unrecognized subdirective '%s'", d.Val())
+		}
+	}
+
+	return ech, nil
+}

caddyconfig/httpcaddyfile/serveroptions.go

@@ -17,6 +17,7 @@ package httpcaddyfile
 import (
 	"encoding/json"
 	"fmt"
+	"slices"
 
 	"github.com/dustin/go-humanize"
 
@@ -180,7 +181,7 @@ func unmarshalCaddyfileServerOptions(d *caddyfile.Dispenser) (any, error) {
 				if proto != "h1" && proto != "h2" && proto != "h2c" && proto != "h3" {
 					return nil, d.Errf("unknown protocol '%s': expected h1, h2, h2c, or h3", proto)
 				}
-				if sliceContains(serverOpts.Protocols, proto) {
+				if slices.Contains(serverOpts.Protocols, proto) {
 					return nil, d.Errf("protocol %s specified more than once", proto)
 				}
 				serverOpts.Protocols = append(serverOpts.Protocols, proto)
@@ -229,7 +230,7 @@ func unmarshalCaddyfileServerOptions(d *caddyfile.Dispenser) (any, error) {
 		case "client_ip_headers":
 			headers := d.RemainingArgs()
 			for _, header := range headers {
-				if sliceContains(serverOpts.ClientIPHeaders, header) {
+				if slices.Contains(serverOpts.ClientIPHeaders, header) {
 					return nil, d.Errf("client IP header %s specified more than once", header)
 				}
 				serverOpts.ClientIPHeaders = append(serverOpts.ClientIPHeaders, header)
@@ -239,13 +240,16 @@ func unmarshalCaddyfileServerOptions(d *caddyfile.Dispenser) (any, error) {
 			}
 
 		case "metrics":
-			if d.NextArg() {
+			caddy.Log().Warn("The nested 'metrics' option inside `servers` is deprecated and will be removed in the next major version. Use the global 'metrics' option instead.")
-				return nil, d.ArgErr()
-			}
-			if nesting := d.Nesting(); d.NextBlock(nesting) {
-				return nil, d.ArgErr()
-			}
 			serverOpts.Metrics = new(caddyhttp.Metrics)
+			for nesting := d.Nesting(); d.NextBlock(nesting); {
+				switch d.Val() {
+				case "per_host":
+					serverOpts.Metrics.PerHost = true
+				default:
+					return nil, d.Errf("unrecognized metrics option '%s'", d.Val())
+				}
+			}
 
 		case "trace":
 			if d.NextArg() {
@@ -288,24 +292,15 @@ func applyServerOptions(
 
 	for key, server := range servers {
 		// find the options that apply to this server
-		opts := func() *serverOptions {
+		optsIndex := slices.IndexFunc(serverOpts, func(s serverOptions) bool {
-			for _, entry := range serverOpts {
+			return s.ListenerAddress == "" || slices.Contains(server.Listen, s.ListenerAddress)
-				if entry.ListenerAddress == "" {
+		})
-					return &entry
-				}
-				for _, listener := range server.Listen {
-					if entry.ListenerAddress == listener {
-						return &entry
-					}
-				}
-			}
-			return nil
-		}()
 
 		// if none apply, then move to the next server
-		if opts == nil {
+		if optsIndex == -1 {
 			continue
 		}
+		opts := serverOpts[optsIndex]
 
 		// set all the options
 		server.ListenerWrappersRaw = opts.ListenerWrappersRaw

caddyconfig/httpcaddyfile/shorthands.go

@@ -52,19 +52,27 @@ func NewShorthandReplacer() ShorthandReplacer {
 // be used in the Caddyfile, and the right is the replacement.
 func placeholderShorthands() []string {
 	return []string{
-		"{dir}", "{http.request.uri.path.dir}",
-		"{file}", "{http.request.uri.path.file}",
 		"{host}", "{http.request.host}",
 		"{hostport}", "{http.request.hostport}",
 		"{port}", "{http.request.port}",
+		"{orig_method}", "{http.request.orig_method}",
+		"{orig_uri}", "{http.request.orig_uri}",
+		"{orig_path}", "{http.request.orig_uri.path}",
+		"{orig_dir}", "{http.request.orig_uri.path.dir}",
+		"{orig_file}", "{http.request.orig_uri.path.file}",
+		"{orig_query}", "{http.request.orig_uri.query}",
+		"{orig_?query}", "{http.request.orig_uri.prefixed_query}",
 		"{method}", "{http.request.method}",
+		"{uri}", "{http.request.uri}",
 		"{path}", "{http.request.uri.path}",
+		"{dir}", "{http.request.uri.path.dir}",
+		"{file}", "{http.request.uri.path.file}",
 		"{query}", "{http.request.uri.query}",
+		"{?query}", "{http.request.uri.prefixed_query}",
 		"{remote}", "{http.request.remote}",
 		"{remote_host}", "{http.request.remote.host}",
 		"{remote_port}", "{http.request.remote.port}",
 		"{scheme}", "{http.request.scheme}",
-		"{uri}", "{http.request.uri}",
 		"{uuid}", "{http.request.uuid}",
 		"{tls_cipher}", "{http.request.tls.cipher_suite}",
 		"{tls_version}", "{http.request.tls.version}",

caddyconfig/httpcaddyfile/tlsapp.go

@@ -19,12 +19,13 @@ import (
 	"encoding/json"
 	"fmt"
 	"reflect"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/mholt/acmez/v2/acme"
+	"github.com/mholt/acmez/v3/acme"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
@@ -44,8 +45,8 @@ func (st ServerType) buildTLSApp(
 	if hp, ok := options["http_port"].(int); ok {
 		httpPort = strconv.Itoa(hp)
 	}
-	autoHTTPS := "on"
+	autoHTTPS := []string{}
-	if ah, ok := options["auto_https"].(string); ok {
+	if ah, ok := options["auto_https"].([]string); ok {
 		autoHTTPS = ah
 	}
 
@@ -53,14 +54,17 @@ func (st ServerType) buildTLSApp(
 	// key, so that they don't get forgotten/omitted by auto-HTTPS
 	// (since they won't appear in route matchers)
 	httpsHostsSharedWithHostlessKey := make(map[string]struct{})
-	if autoHTTPS != "off" {
+	if !slices.Contains(autoHTTPS, "off") {
 		for _, pair := range pairings {
 			for _, sb := range pair.serverBlocks {
-				for _, addr := range sb.keys {
+				for _, addr := range sb.parsedKeys {
-					if addr.Host == "" {
+					if addr.Host != "" {
+						continue
+					}
+
 					// this server block has a hostless key, now
 					// go through and add all the hosts to the set
-						for _, otherAddr := range sb.keys {
+					for _, otherAddr := range sb.parsedKeys {
 						if otherAddr.Original == addr.Original {
 							continue
 						}
@@ -73,7 +77,6 @@ func (st ServerType) buildTLSApp(
 			}
 		}
 	}
-	}
 
 	// a catch-all automation policy is used as a "default" for all subjects that
 	// don't have custom configuration explicitly associated with them; this
@@ -89,9 +92,35 @@ func (st ServerType) buildTLSApp(
 		tlsApp.Automation.Policies = append(tlsApp.Automation.Policies, catchAllAP)
 	}
 
+	// collect all hosts that have a wildcard in them, and arent HTTP
+	wildcardHosts := []string{}
+	// hosts that have been explicitly marked to be automated,
+	// even if covered by another wildcard
+	forcedAutomatedNames := make(map[string]struct{})
+	for _, p := range pairings {
+		var addresses []string
+		for _, addressWithProtocols := range p.addressesWithProtocols {
+			addresses = append(addresses, addressWithProtocols.address)
+		}
+		if !listenersUseAnyPortOtherThan(addresses, httpPort) {
+			continue
+		}
+		for _, sblock := range p.serverBlocks {
+			for _, addr := range sblock.parsedKeys {
+				if strings.HasPrefix(addr.Host, "*.") {
+					wildcardHosts = append(wildcardHosts, addr.Host[2:])
+				}
+			}
+		}
+	}
+
 	for _, p := range pairings {
 		// avoid setting up TLS automation policies for a server that is HTTP-only
-		if !listenersUseAnyPortOtherThan(p.addresses, httpPort) {
+		var addresses []string
+		for _, addressWithProtocols := range p.addressesWithProtocols {
+			addresses = append(addresses, addressWithProtocols.address)
+		}
+		if !listenersUseAnyPortOtherThan(addresses, httpPort) {
 			continue
 		}
 
@@ -108,6 +137,12 @@ func (st ServerType) buildTLSApp(
 				return nil, warnings, err
 			}
 
+			// make a plain copy so we can compare whether we made any changes
+			apCopy, err := newBaseAutomationPolicy(options, warnings, true)
+			if err != nil {
+				return nil, warnings, err
+			}
+
 			sblockHosts := sblock.hostsFromKeys(false)
 			if len(sblockHosts) == 0 && catchAllAP != nil {
 				ap = catchAllAP
@@ -118,6 +153,13 @@ func (st ServerType) buildTLSApp(
 				ap.OnDemand = true
 			}
 
+			// collect hosts that are forced to be automated
+			if _, ok := sblock.pile["tls.force_automate"]; ok {
+				for _, host := range sblockHosts {
+					forcedAutomatedNames[host] = struct{}{}
+				}
+			}
+
 			// reuse private keys tls
 			if _, ok := sblock.pile["tls.reuse_private_keys"]; ok {
 				ap.ReusePrivateKeys = true
@@ -181,8 +223,8 @@ func (st ServerType) buildTLSApp(
 					if acmeIssuer.Challenges.BindHost == "" {
 						// only binding to one host is supported
 						var bindHost string
-						if bindHosts, ok := cfgVal.Value.([]string); ok && len(bindHosts) > 0 {
+						if asserted, ok := cfgVal.Value.(addressesWithProtocols); ok && len(asserted.addresses) > 0 {
-							bindHost = bindHosts[0]
+							bindHost = asserted.addresses[0]
 						}
 						acmeIssuer.Challenges.BindHost = bindHost
 					}
@@ -210,9 +252,21 @@ func (st ServerType) buildTLSApp(
 				catchAllAP = ap
 			}
 
+			hostsNotHTTP := sblock.hostsFromKeysNotHTTP(httpPort)
+			sort.Strings(hostsNotHTTP) // solely for deterministic test results
+
+			// if the we prefer wildcards and the AP is unchanged,
+			// then we can skip this AP because it should be covered
+			// by an AP with a wildcard
+			if slices.Contains(autoHTTPS, "prefer_wildcard") {
+				if hostsCoveredByWildcard(hostsNotHTTP, wildcardHosts) &&
+					reflect.DeepEqual(ap, apCopy) {
+					continue
+				}
+			}
+
 			// associate our new automation policy with this server block's hosts
-			ap.SubjectsRaw = sblock.hostsFromKeysNotHTTP(httpPort)
+			ap.SubjectsRaw = hostsNotHTTP
-			sort.Strings(ap.SubjectsRaw) // solely for deterministic test results
 
 			// if a combination of public and internal names were given
 			// for this same server block and no issuer was specified, we
@@ -251,6 +305,7 @@ func (st ServerType) buildTLSApp(
 					ap2.IssuersRaw = []json.RawMessage{caddyconfig.JSONModuleObject(caddytls.InternalIssuer{}, "module", "internal", &warnings)}
 				}
 			}
+
 			if tlsApp.Automation == nil {
 				tlsApp.Automation = new(caddytls.AutomationConfig)
 			}
@@ -304,6 +359,40 @@ func (st ServerType) buildTLSApp(
 		tlsApp.Automation.OnDemand = onDemand
 	}
 
+	// set up "global" (to the TLS app) DNS provider config
+	if globalDNS, ok := options["dns"]; ok && globalDNS != nil {
+		tlsApp.DNSRaw = caddyconfig.JSONModuleObject(globalDNS, "name", globalDNS.(caddy.Module).CaddyModule().ID.Name(), nil)
+	}
+
+	// set up ECH from Caddyfile options
+	if ech, ok := options["ech"].(*caddytls.ECH); ok {
+		tlsApp.EncryptedClientHello = ech
+
+		// outer server names will need certificates, so make sure they're included
+		// in an automation policy for them that applies any global options
+		ap, err := newBaseAutomationPolicy(options, warnings, true)
+		if err != nil {
+			return nil, warnings, err
+		}
+		for _, cfg := range ech.Configs {
+			ap.SubjectsRaw = append(ap.SubjectsRaw, cfg.PublicName)
+		}
+		if tlsApp.Automation == nil {
+			tlsApp.Automation = new(caddytls.AutomationConfig)
+		}
+		tlsApp.Automation.Policies = append(tlsApp.Automation.Policies, ap)
+	}
+
+	// if the storage clean interval is a boolean, then it's "off" to disable cleaning
+	if sc, ok := options["storage_check"].(string); ok && sc == "off" {
+		tlsApp.DisableStorageCheck = true
+	}
+
+	// if the storage clean interval is a boolean, then it's "off" to disable cleaning
+	if sci, ok := options["storage_clean_interval"].(bool); ok && !sci {
+		tlsApp.DisableStorageClean = true
+	}
+
 	// set the storage clean interval if configured
 	if storageCleanInterval, ok := options["storage_clean_interval"].(caddy.Duration); ok {
 		if tlsApp.Automation == nil {
@@ -344,7 +433,7 @@ func (st ServerType) buildTLSApp(
 	internalAP := &caddytls.AutomationPolicy{
 		IssuersRaw: []json.RawMessage{json.RawMessage(`{"module":"internal"}`)},
 	}
-	if autoHTTPS != "off" && autoHTTPS != "disable_certs" {
+	if !slices.Contains(autoHTTPS, "off") && !slices.Contains(autoHTTPS, "disable_certs") {
 		for h := range httpsHostsSharedWithHostlessKey {
 			al = append(al, h)
 			if !certmagic.SubjectQualifiesForPublicCert(h) {
@@ -352,6 +441,13 @@ func (st ServerType) buildTLSApp(
 			}
 		}
 	}
+	for name := range forcedAutomatedNames {
+		if slices.Contains(al, name) {
+			continue
+		}
+		al = append(al, name)
+	}
+	slices.Sort(al) // to stabilize the adapt output
 	if len(al) > 0 {
 		tlsApp.CertificatesRaw["automate"] = caddyconfig.JSON(al, &warnings)
 	}
@@ -465,7 +561,7 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 	if globalACMECA != nil && acmeIssuer.CA == "" {
 		acmeIssuer.CA = globalACMECA.(string)
 	}
-	if globalACMECARoot != nil && !sliceContains(acmeIssuer.TrustedRootsPEMFiles, globalACMECARoot.(string)) {
+	if globalACMECARoot != nil && !slices.Contains(acmeIssuer.TrustedRootsPEMFiles, globalACMECARoot.(string)) {
 		acmeIssuer.TrustedRootsPEMFiles = append(acmeIssuer.TrustedRootsPEMFiles, globalACMECARoot.(string))
 	}
 	if globalACMEDNS != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.DNS == nil) {
@@ -481,7 +577,8 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 	if globalPreferredChains != nil && acmeIssuer.PreferredChains == nil {
 		acmeIssuer.PreferredChains = globalPreferredChains.(*caddytls.ChainPreference)
 	}
-	if globalHTTPPort != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.HTTP == nil || acmeIssuer.Challenges.HTTP.AlternatePort == 0) {
+	// only configure alt HTTP and TLS-ALPN ports if the DNS challenge is not enabled (wouldn't hurt, but isn't necessary since the DNS challenge is exclusive of others)
+	if globalHTTPPort != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.DNS == nil) && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.HTTP == nil || acmeIssuer.Challenges.HTTP.AlternatePort == 0) {
 		if acmeIssuer.Challenges == nil {
 			acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
 		}
@@ -490,7 +587,7 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 		}
 		acmeIssuer.Challenges.HTTP.AlternatePort = globalHTTPPort.(int)
 	}
-	if globalHTTPSPort != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.TLSALPN == nil || acmeIssuer.Challenges.TLSALPN.AlternatePort == 0) {
+	if globalHTTPSPort != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.DNS == nil) && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.TLSALPN == nil || acmeIssuer.Challenges.TLSALPN.AlternatePort == 0) {
 		if acmeIssuer.Challenges == nil {
 			acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
 		}
@@ -580,7 +677,7 @@ func consolidateAutomationPolicies(aps []*caddytls.AutomationPolicy) []*caddytls
 			if !automationPolicyHasAllPublicNames(aps[i]) {
 				// if this automation policy has internal names, we might as well remove it
 				// so auto-https can implicitly use the internal issuer
-				aps = append(aps[:i], aps[i+1:]...)
+				aps = slices.Delete(aps, i, i+1)
 				i--
 			}
 		}
@@ -597,7 +694,7 @@ outer:
 		for j := i + 1; j < len(aps); j++ {
 			// if they're exactly equal in every way, just keep one of them
 			if reflect.DeepEqual(aps[i], aps[j]) {
-				aps = append(aps[:j], aps[j+1:]...)
+				aps = slices.Delete(aps, j, j+1)
 				// must re-evaluate current i against next j; can't skip it!
 				// even if i decrements to -1, will be incremented to 0 immediately
 				i--
@@ -627,18 +724,18 @@ outer:
 					// cause example.com to be served by the less specific policy for
 					// '*.com', which might be different (yes we've seen this happen)
 					if automationPolicyShadows(i, aps) >= j {
-						aps = append(aps[:i], aps[i+1:]...)
+						aps = slices.Delete(aps, i, i+1)
 						i--
 						continue outer
 					}
 				} else {
 					// avoid repeated subjects
 					for _, subj := range aps[j].SubjectsRaw {
-						if !sliceContains(aps[i].SubjectsRaw, subj) {
+						if !slices.Contains(aps[i].SubjectsRaw, subj) {
 							aps[i].SubjectsRaw = append(aps[i].SubjectsRaw, subj)
 						}
 					}
-					aps = append(aps[:j], aps[j+1:]...)
+					aps = slices.Delete(aps, j, j+1)
 					j--
 				}
 			}
@@ -658,13 +755,9 @@ func automationPolicyIsSubset(a, b *caddytls.AutomationPolicy) bool {
 		return false
 	}
 	for _, aSubj := range a.SubjectsRaw {
-		var inSuperset bool
+		inSuperset := slices.ContainsFunc(b.SubjectsRaw, func(bSubj string) bool {
-		for _, bSubj := range b.SubjectsRaw {
+			return certmagic.MatchWildcard(aSubj, bSubj)
-			if certmagic.MatchWildcard(aSubj, bSubj) {
+		})
-				inSuperset = true
-				break
-			}
-		}
 		if !inSuperset {
 			return false
 		}
@@ -709,14 +802,28 @@ func subjectQualifiesForPublicCert(ap *caddytls.AutomationPolicy, subj string) b
 // automationPolicyHasAllPublicNames returns true if all the names on the policy
 // do NOT qualify for public certs OR are tailscale domains.
 func automationPolicyHasAllPublicNames(ap *caddytls.AutomationPolicy) bool {
-	for _, subj := range ap.SubjectsRaw {
+	return !slices.ContainsFunc(ap.SubjectsRaw, func(i string) bool {
-		if !subjectQualifiesForPublicCert(ap, subj) || isTailscaleDomain(subj) {
+		return !subjectQualifiesForPublicCert(ap, i) || isTailscaleDomain(i)
-			return false
+	})
-		}
-	}
-	return true
 }
 
 func isTailscaleDomain(name string) bool {
 	return strings.HasSuffix(strings.ToLower(name), ".ts.net")
 }
+
+func hostsCoveredByWildcard(hosts []string, wildcards []string) bool {
+	if len(hosts) == 0 || len(wildcards) == 0 {
+		return false
+	}
+	for _, host := range hosts {
+		for _, wildcard := range wildcards {
+			if strings.HasPrefix(host, "*.") {
+				continue
+			}
+			if certmagic.MatchWildcard(host, "*."+wildcard) {
+				return true
+			}
+		}
+	}
+	return false
+}

caddyconfig/httploader.go

@@ -35,7 +35,7 @@ func init() {
 // If the response is not a JSON config, a config adapter must be specified
 // either in the loader config (`adapter`), or in the Content-Type HTTP header
 // returned in the HTTP response from the server. The Content-Type header is
-// read just like the admin API's `/load` endpoint. Uf you don't have control
+// read just like the admin API's `/load` endpoint. If you don't have control
 // over the HTTP server (but can still trust its response), you can override
 // the Content-Type header by setting the `adapter` property in this config.
 type HTTPLoader struct {

caddytest/caddytest.go

@@ -31,8 +31,8 @@ import (
 	_ "github.com/caddyserver/caddy/v2/modules/standard"
 )
 
-// Defaults store any configuration required to make the tests run
+// Config store any configuration required to make the tests run
-type Defaults struct {
+type Config struct {
 	// Port we expect caddy to listening on
 	AdminPort int
 	// Certificates we expect to be loaded before attempting to run the tests
@@ -44,7 +44,7 @@ type Defaults struct {
 }
 
 // Default testing values
-var Default = Defaults{
+var Default = Config{
 	AdminPort:          2999, // different from what a real server also running on a developer's machine might be
 	Certificates:       []string{"/caddy.localhost.crt", "/caddy.localhost.key"},
 	TestRequestTimeout: 5 * time.Second,
@@ -61,6 +61,7 @@ type Tester struct {
 	Client       *http.Client
 	configLoaded bool
 	t            testing.TB
+	config       Config
 }
 
 // NewTester will create a new testing client with an attached cookie jar
@@ -78,9 +79,29 @@ func NewTester(t testing.TB) *Tester {
 		},
 		configLoaded: false,
 		t:            t,
+		config:       Default,
 	}
 }
 
+// WithDefaultOverrides this will override the default test configuration with the provided values.
+func (tc *Tester) WithDefaultOverrides(overrides Config) *Tester {
+	if overrides.AdminPort != 0 {
+		tc.config.AdminPort = overrides.AdminPort
+	}
+	if len(overrides.Certificates) > 0 {
+		tc.config.Certificates = overrides.Certificates
+	}
+	if overrides.TestRequestTimeout != 0 {
+		tc.config.TestRequestTimeout = overrides.TestRequestTimeout
+		tc.Client.Timeout = overrides.TestRequestTimeout
+	}
+	if overrides.LoadRequestTimeout != 0 {
+		tc.config.LoadRequestTimeout = overrides.LoadRequestTimeout
+	}
+
+	return tc
+}
+
 type configLoadError struct {
 	Response string
 }
@@ -113,7 +134,7 @@ func (tc *Tester) initServer(rawConfig string, configType string) error {
 		return nil
 	}
 
-	err := validateTestPrerequisites(tc.t)
+	err := validateTestPrerequisites(tc)
 	if err != nil {
 		tc.t.Skipf("skipping tests as failed integration prerequisites. %s", err)
 		return nil
@@ -121,7 +142,7 @@ func (tc *Tester) initServer(rawConfig string, configType string) error {
 
 	tc.t.Cleanup(func() {
 		if tc.t.Failed() && tc.configLoaded {
-			res, err := http.Get(fmt.Sprintf("http://localhost:%d/config/", Default.AdminPort))
+			res, err := http.Get(fmt.Sprintf("http://localhost:%d/config/", tc.config.AdminPort))
 			if err != nil {
 				tc.t.Log("unable to read the current config")
 				return
@@ -151,10 +172,10 @@ func (tc *Tester) initServer(rawConfig string, configType string) error {
 		tc.t.Logf("After: %s", rawConfig)
 	}
 	client := &http.Client{
-		Timeout: Default.LoadRequestTimeout,
+		Timeout: tc.config.LoadRequestTimeout,
 	}
 	start := time.Now()
-	req, err := http.NewRequest("POST", fmt.Sprintf("http://localhost:%d/load", Default.AdminPort), strings.NewReader(rawConfig))
+	req, err := http.NewRequest("POST", fmt.Sprintf("http://localhost:%d/load", tc.config.AdminPort), strings.NewReader(rawConfig))
 	if err != nil {
 		tc.t.Errorf("failed to create request. %s", err)
 		return err
@@ -205,11 +226,11 @@ func (tc *Tester) ensureConfigRunning(rawConfig string, configType string) error
 	}
 
 	client := &http.Client{
-		Timeout: Default.LoadRequestTimeout,
+		Timeout: tc.config.LoadRequestTimeout,
 	}
 
 	fetchConfig := func(client *http.Client) any {
-		resp, err := client.Get(fmt.Sprintf("http://localhost:%d/config/", Default.AdminPort))
+		resp, err := client.Get(fmt.Sprintf("http://localhost:%d/config/", tc.config.AdminPort))
 		if err != nil {
 			return nil
 		}
@@ -237,30 +258,30 @@ func (tc *Tester) ensureConfigRunning(rawConfig string, configType string) error
 }
 
 const initConfig = `{
-	admin localhost:2999
+	admin localhost:%d
 }
 `
 
 // validateTestPrerequisites ensures the certificates are available in the
 // designated path and Caddy sub-process is running.
-func validateTestPrerequisites(t testing.TB) error {
+func validateTestPrerequisites(tc *Tester) error {
 	// check certificates are found
-	for _, certName := range Default.Certificates {
+	for _, certName := range tc.config.Certificates {
 		if _, err := os.Stat(getIntegrationDir() + certName); errors.Is(err, fs.ErrNotExist) {
 			return fmt.Errorf("caddy integration test certificates (%s) not found", certName)
 		}
 	}
 
-	if isCaddyAdminRunning() != nil {
+	if isCaddyAdminRunning(tc) != nil {
 		// setup the init config file, and set the cleanup afterwards
 		f, err := os.CreateTemp("", "")
 		if err != nil {
 			return err
 		}
-		t.Cleanup(func() {
+		tc.t.Cleanup(func() {
 			os.Remove(f.Name())
 		})
-		if _, err := f.WriteString(initConfig); err != nil {
+		if _, err := f.WriteString(fmt.Sprintf(initConfig, tc.config.AdminPort)); err != nil {
 			return err
 		}
 
@@ -271,23 +292,23 @@ func validateTestPrerequisites(t testing.TB) error {
 		}()
 
 		// wait for caddy to start serving the initial config
-		for retries := 10; retries > 0 && isCaddyAdminRunning() != nil; retries-- {
+		for retries := 10; retries > 0 && isCaddyAdminRunning(tc) != nil; retries-- {
 			time.Sleep(1 * time.Second)
 		}
 	}
 
 	// one more time to return the error
-	return isCaddyAdminRunning()
+	return isCaddyAdminRunning(tc)
 }
 
-func isCaddyAdminRunning() error {
+func isCaddyAdminRunning(tc *Tester) error {
 	// assert that caddy is running
 	client := &http.Client{
-		Timeout: Default.LoadRequestTimeout,
+		Timeout: tc.config.LoadRequestTimeout,
 	}
-	resp, err := client.Get(fmt.Sprintf("http://localhost:%d/config/", Default.AdminPort))
+	resp, err := client.Get(fmt.Sprintf("http://localhost:%d/config/", tc.config.AdminPort))
 	if err != nil {
-		return fmt.Errorf("caddy integration test caddy server not running. Expected to be listening on localhost:%d", Default.AdminPort)
+		return fmt.Errorf("caddy integration test caddy server not running. Expected to be listening on localhost:%d", tc.config.AdminPort)
 	}
 	resp.Body.Close()
 

caddytest/caddytest_test.go

@@ -84,7 +84,6 @@ func TestLoadUnorderedJSON(t *testing.T) {
 				"servers": {
 					"s_server": {
 						"listen": [
-							":9443",
 							":9080"
 						],
 						"routes": [

caddytest/integration/acme_test.go

@@ -6,6 +6,7 @@ import (
 	"crypto/elliptic"
 	"crypto/rand"
 	"fmt"
+	"log/slog"
 	"net"
 	"net/http"
 	"strings"
@@ -13,10 +14,11 @@ import (
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddytest"
-	"github.com/mholt/acmez/v2"
+	"github.com/mholt/acmez/v3"
-	"github.com/mholt/acmez/v2/acme"
+	"github.com/mholt/acmez/v3/acme"
 	smallstepacme "github.com/smallstep/certificates/acme"
 	"go.uber.org/zap"
+	"go.uber.org/zap/exp/zapslog"
 )
 
 const acmeChallengePort = 9081
@@ -48,7 +50,7 @@ func TestACMEServerWithDefaults(t *testing.T) {
 		Client: &acme.Client{
 			Directory:  "https://acme.localhost:9443/acme/local/directory",
 			HTTPClient: tester.Client,
-			Logger:     logger,
+			Logger:     slog.New(zapslog.NewHandler(logger.Core())),
 		},
 		ChallengeSolvers: map[string]acmez.Solver{
 			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
@@ -117,7 +119,7 @@ func TestACMEServerWithMismatchedChallenges(t *testing.T) {
 		Client: &acme.Client{
 			Directory:  "https://acme.localhost:9443/acme/local/directory",
 			HTTPClient: tester.Client,
-			Logger:     logger,
+			Logger:     slog.New(zapslog.NewHandler(logger.Core())),
 		},
 		ChallengeSolvers: map[string]acmez.Solver{
 			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},

caddytest/integration/acmeserver_test.go

@@ -5,13 +5,15 @@ import (
 	"crypto/ecdsa"
 	"crypto/elliptic"
 	"crypto/rand"
+	"log/slog"
 	"strings"
 	"testing"
 
 	"github.com/caddyserver/caddy/v2/caddytest"
-	"github.com/mholt/acmez/v2"
+	"github.com/mholt/acmez/v3"
-	"github.com/mholt/acmez/v2/acme"
+	"github.com/mholt/acmez/v3/acme"
 	"go.uber.org/zap"
+	"go.uber.org/zap/exp/zapslog"
 )
 
 func TestACMEServerDirectory(t *testing.T) {
@@ -76,7 +78,7 @@ func TestACMEServerAllowPolicy(t *testing.T) {
 		Client: &acme.Client{
 			Directory:  "https://acme.localhost:9443/acme/local/directory",
 			HTTPClient: tester.Client,
-			Logger:     logger,
+			Logger:     slog.New(zapslog.NewHandler(logger.Core())),
 		},
 		ChallengeSolvers: map[string]acmez.Solver{
 			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
@@ -165,7 +167,7 @@ func TestACMEServerDenyPolicy(t *testing.T) {
 		Client: &acme.Client{
 			Directory:  "https://acme.localhost:9443/acme/local/directory",
 			HTTPClient: tester.Client,
-			Logger:     logger,
+			Logger:     slog.New(zapslog.NewHandler(logger.Core())),
 		},
 		ChallengeSolvers: map[string]acmez.Solver{
 			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},

caddytest/integration/caddyfile_adapt/acme_server_sign_with_root.caddyfiletest

@@ -7,13 +7,13 @@
 		}
 	}
 }
-
 acme.example.com {
 	acme_server {
 		ca internal
 		sign_with_root
 	}
 }
+
 ----------
 {
 	"apps": {

caddytest/integration/caddyfile_adapt/auto_https_prefer_wildcard.caddyfiletest

@@ -0,0 +1,109 @@
+{
+	auto_https prefer_wildcard
+}
+
+*.example.com {
+	tls {
+		dns mock
+	}
+	respond "fallback"
+}
+
+foo.example.com {
+	respond "foo"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"foo.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "foo",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"*.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "fallback",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"automatic_https": {
+						"skip_certificates": [
+							"foo.example.com"
+						],
+						"prefer_wildcard": true
+					}
+				}
+			}
+		},
+		"tls": {
+			"automation": {
+				"policies": [
+					{
+						"subjects": [
+							"*.example.com"
+						],
+						"issuers": [
+							{
+								"challenges": {
+									"dns": {
+										"provider": {
+											"name": "mock"
+										}
+									}
+								},
+								"module": "acme"
+							}
+						]
+					}
+				]
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/auto_https_prefer_wildcard_multi.caddyfiletest

@@ -0,0 +1,268 @@
+{
+	auto_https prefer_wildcard
+}
+
+# Covers two domains
+*.one.example.com {
+	tls {
+		dns mock
+	}
+	respond "one fallback"
+}
+
+# Is covered, should not get its own AP
+foo.one.example.com {
+	respond "foo one"
+}
+
+# This one has its own tls config so it doesn't get covered (escape hatch)
+bar.one.example.com {
+	respond "bar one"
+	tls bar@bar.com
+}
+
+# Covers nothing but AP gets consolidated with the first
+*.two.example.com {
+	tls {
+		dns mock
+	}
+	respond "two fallback"
+}
+
+# Is HTTP so it should not cover
+http://*.three.example.com {
+	respond "three fallback"
+}
+
+# Has no wildcard coverage so it gets an AP
+foo.three.example.com {
+	respond "foo three"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"foo.three.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "foo three",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"foo.one.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "foo one",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"bar.one.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "bar one",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"*.one.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "one fallback",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"*.two.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "two fallback",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"automatic_https": {
+						"skip_certificates": [
+							"foo.one.example.com",
+							"bar.one.example.com"
+						],
+						"prefer_wildcard": true
+					}
+				},
+				"srv1": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"*.three.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "three fallback",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"automatic_https": {
+						"prefer_wildcard": true
+					}
+				}
+			}
+		},
+		"tls": {
+			"automation": {
+				"policies": [
+					{
+						"subjects": [
+							"foo.three.example.com"
+						]
+					},
+					{
+						"subjects": [
+							"bar.one.example.com"
+						],
+						"issuers": [
+							{
+								"email": "bar@bar.com",
+								"module": "acme"
+							},
+							{
+								"ca": "https://acme.zerossl.com/v2/DV90",
+								"email": "bar@bar.com",
+								"module": "acme"
+							}
+						]
+					},
+					{
+						"subjects": [
+							"*.one.example.com",
+							"*.two.example.com"
+						],
+						"issuers": [
+							{
+								"challenges": {
+									"dns": {
+										"provider": {
+											"name": "mock"
+										}
+									}
+								},
+								"module": "acme"
+							}
+						]
+					}
+				]
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/bind_fd_fdgram_h123.caddyfiletest

@@ -0,0 +1,142 @@
+{
+	auto_https disable_redirects
+	admin off
+}
+
+http://localhost {
+	bind fd/{env.CADDY_HTTP_FD} {
+		protocols h1
+	}
+	log
+	respond "Hello, HTTP!"
+}
+
+https://localhost {
+	bind fd/{env.CADDY_HTTPS_FD} {
+		protocols h1 h2
+	}
+	bind fdgram/{env.CADDY_HTTP3_FD} {
+		protocols h3
+	}
+	log
+	respond "Hello, HTTPS!"
+}
+----------
+{
+	"admin": {
+		"disabled": true
+	},
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						"fd/{env.CADDY_HTTPS_FD}",
+						"fdgram/{env.CADDY_HTTP3_FD}"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Hello, HTTPS!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"automatic_https": {
+						"disable_redirects": true
+					},
+					"logs": {
+						"logger_names": {
+							"localhost": [
+								""
+							]
+						}
+					},
+					"listen_protocols": [
+						[
+							"h1",
+							"h2"
+						],
+						[
+							"h3"
+						]
+					]
+				},
+				"srv1": {
+					"automatic_https": {
+						"disable_redirects": true
+					}
+				},
+				"srv2": {
+					"listen": [
+						"fd/{env.CADDY_HTTP_FD}"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Hello, HTTP!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"automatic_https": {
+						"disable_redirects": true,
+						"skip": [
+							"localhost"
+						]
+					},
+					"logs": {
+						"logger_names": {
+							"localhost": [
+								""
+							]
+						}
+					},
+					"listen_protocols": [
+						[
+							"h1"
+						]
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/encode_options.caddyfiletest

@@ -21,6 +21,8 @@ encode {
 	zstd
 	gzip 5
 }
+
+encode
 ----------
 {
 	"apps": {
@@ -76,6 +78,17 @@ encode {
 										"zstd",
 										"gzip"
 									]
+								},
+								{
+									"encodings": {
+										"gzip": {},
+										"zstd": {}
+									},
+									"handler": "encode",
+									"prefer": [
+										"zstd",
+										"gzip"
+									]
 								}
 							]
 						}

caddytest/integration/caddyfile_adapt/file_server_file_limit.caddyfiletest

@@ -0,0 +1,36 @@
+:80
+
+file_server {
+	browse {
+		file_limit 4000
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"browse": {
+										"file_limit": 4000
+									},
+									"handler": "file_server",
+									"hide": [
+										"./Caddyfile"
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/file_server_precompressed.caddyfiletest

@@ -3,6 +3,10 @@
 file_server {
 	precompressed zstd br gzip
 }
+
+file_server {
+	precompressed
+}
 ----------
 {
 	"apps": {
@@ -30,6 +34,22 @@ file_server {
 										"br",
 										"gzip"
 									]
+								},
+								{
+									"handler": "file_server",
+									"hide": [
+										"./Caddyfile"
+									],
+									"precompressed": {
+										"br": {},
+										"gzip": {},
+										"zstd": {}
+									},
+									"precompressed_order": [
+										"br",
+										"zstd",
+										"gzip"
+									]
 								}
 							]
 						}

caddytest/integration/caddyfile_adapt/file_server_sort.caddyfiletest

@@ -0,0 +1,39 @@
+:80
+
+file_server {
+	browse {
+		sort size desc
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"browse": {
+										"sort": [
+											"size",
+											"desc"
+										]
+									},
+									"handler": "file_server",
+									"hide": [
+										"./Caddyfile"
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/forward_auth_authelia.caddyfiletest

@@ -1,6 +1,6 @@
 app.example.com {
 	forward_auth authelia:9091 {
-		uri /api/verify?rd=https://authelia.example.com
+		uri /api/authz/forward-auth
 		copy_headers Remote-User Remote-Groups Remote-Name Remote-Email
 	}
 
@@ -39,6 +39,13 @@ app.example.com {
 																]
 															},
 															"routes": [
+																{
+																	"handle": [
+																		{
+																			"handler": "vars"
+																		}
+																	]
+																},
 																{
 																	"handle": [
 																		{
@@ -47,19 +54,104 @@ app.example.com {
 																				"set": {
 																					"Remote-Email": [
 																						"{http.reverse_proxy.header.Remote-Email}"
+																					]
+																				}
+																			}
+																		}
 																	],
+																	"match": [
+																		{
+																			"not": [
+																				{
+																					"vars": {
+																						"{http.reverse_proxy.header.Remote-Email}": [
+																							""
+																						]
+																					}
+																				}
+																			]
+																		}
+																	]
+																},
+																{
+																	"handle": [
+																		{
+																			"handler": "headers",
+																			"request": {
+																				"set": {
 																					"Remote-Groups": [
 																						"{http.reverse_proxy.header.Remote-Groups}"
+																					]
+																				}
+																			}
+																		}
 																	],
+																	"match": [
+																		{
+																			"not": [
+																				{
+																					"vars": {
+																						"{http.reverse_proxy.header.Remote-Groups}": [
+																							""
+																						]
+																					}
+																				}
+																			]
+																		}
+																	]
+																},
+																{
+																	"handle": [
+																		{
+																			"handler": "headers",
+																			"request": {
+																				"set": {
 																					"Remote-Name": [
 																						"{http.reverse_proxy.header.Remote-Name}"
+																					]
+																				}
+																			}
+																		}
 																	],
+																	"match": [
+																		{
+																			"not": [
+																				{
+																					"vars": {
+																						"{http.reverse_proxy.header.Remote-Name}": [
+																							""
+																						]
+																					}
+																				}
+																			]
+																		}
+																	]
+																},
+																{
+																	"handle": [
+																		{
+																			"handler": "headers",
+																			"request": {
+																				"set": {
 																					"Remote-User": [
 																						"{http.reverse_proxy.header.Remote-User}"
 																					]
 																				}
 																			}
 																		}
+																	],
+																	"match": [
+																		{
+																			"not": [
+																				{
+																					"vars": {
+																						"{http.reverse_proxy.header.Remote-User}": [
+																							""
+																						]
+																					}
+																				}
+																			]
+																		}
 																	]
 																}
 															]
@@ -80,7 +172,7 @@ app.example.com {
 													},
 													"rewrite": {
 														"method": "GET",
-														"uri": "/api/verify?rd=https://authelia.example.com"
+														"uri": "/api/authz/forward-auth"
 													},
 													"upstreams": [
 														{

caddytest/integration/caddyfile_adapt/forward_auth_rename_headers.caddyfiletest

@@ -28,6 +28,13 @@ forward_auth localhost:9000 {
 												]
 											},
 											"routes": [
+												{
+													"handle": [
+														{
+															"handler": "vars"
+														}
+													]
+												},
 												{
 													"handle": [
 														{
@@ -36,22 +43,131 @@ forward_auth localhost:9000 {
 																"set": {
 																	"1": [
 																		"{http.reverse_proxy.header.A}"
+																	]
+																}
+															}
+														}
 													],
-																	"3": [
+													"match": [
-																		"{http.reverse_proxy.header.C}"
+														{
-																	],
+															"not": [
-																	"5": [
+																{
-																		"{http.reverse_proxy.header.E}"
+																	"vars": {
-																	],
+																		"{http.reverse_proxy.header.A}": [
+																			""
+																		]
+																	}
+																}
+															]
+														}
+													]
+												},
+												{
+													"handle": [
+														{
+															"handler": "headers",
+															"request": {
+																"set": {
 																	"B": [
 																		"{http.reverse_proxy.header.B}"
+																	]
+																}
+															}
+														}
 													],
+													"match": [
+														{
+															"not": [
+																{
+																	"vars": {
+																		"{http.reverse_proxy.header.B}": [
+																			""
+																		]
+																	}
+																}
+															]
+														}
+													]
+												},
+												{
+													"handle": [
+														{
+															"handler": "headers",
+															"request": {
+																"set": {
+																	"3": [
+																		"{http.reverse_proxy.header.C}"
+																	]
+																}
+															}
+														}
+													],
+													"match": [
+														{
+															"not": [
+																{
+																	"vars": {
+																		"{http.reverse_proxy.header.C}": [
+																			""
+																		]
+																	}
+																}
+															]
+														}
+													]
+												},
+												{
+													"handle": [
+														{
+															"handler": "headers",
+															"request": {
+																"set": {
 																	"D": [
 																		"{http.reverse_proxy.header.D}"
 																	]
 																}
 															}
 														}
+													],
+													"match": [
+														{
+															"not": [
+																{
+																	"vars": {
+																		"{http.reverse_proxy.header.D}": [
+																			""
+																		]
+																	}
+																}
+															]
+														}
+													]
+												},
+												{
+													"handle": [
+														{
+															"handler": "headers",
+															"request": {
+																"set": {
+																	"5": [
+																		"{http.reverse_proxy.header.E}"
+																	]
+																}
+															}
+														}
+													],
+													"match": [
+														{
+															"not": [
+																{
+																	"vars": {
+																		"{http.reverse_proxy.header.E}": [
+																			""
+																		]
+																	}
+																}
+															]
+														}
 													]
 												}
 											]

caddytest/integration/caddyfile_adapt/global_options.caddyfiletest

@@ -9,6 +9,8 @@
 	storage file_system {
 		root /data
 	}
+	storage_check off
+	storage_clean_interval off
 	acme_ca https://example.com
 	acme_ca_root /path/to/ca.crt
 	ocsp_stapling off
@@ -17,8 +19,6 @@
 	admin off
 	on_demand_tls {
 		ask https://example.com
-		interval 30s
-		burst 20
 	}
 	local_certs
 	key_type ed25519
@@ -72,14 +72,12 @@
 					"permission": {
 						"endpoint": "https://example.com",
 						"module": "http"
-					},
-					"rate_limit": {
-						"interval": 30000000000,
-						"burst": 20
 					}
 				}
 			},
-			"disable_ocsp_stapling": true
+			"disable_ocsp_stapling": true,
+			"disable_storage_check": true,
+			"disable_storage_clean": true
 		}
 	}
 }

caddytest/integration/caddyfile_adapt/global_options_acme.caddyfiletest

@@ -17,8 +17,6 @@
 	admin off
 	on_demand_tls {
 		ask https://example.com
-		interval 30s
-		burst 20
 	}
 	storage_clean_interval 7d
 	renew_interval 1d
@@ -89,10 +87,6 @@
 					"permission": {
 						"endpoint": "https://example.com",
 						"module": "http"
-					},
-					"rate_limit": {
-						"interval": 30000000000,
-						"burst": 20
 					}
 				},
 				"ocsp_interval": 172800000000000,

caddytest/integration/caddyfile_adapt/global_options_admin.caddyfiletest

@@ -16,8 +16,6 @@
 	}
 	on_demand_tls {
 		ask https://example.com
-		interval 30s
-		burst 20
 	}
 	local_certs
 	key_type ed25519
@@ -74,10 +72,6 @@
 					"permission": {
 						"endpoint": "https://example.com",
 						"module": "http"
-					},
-					"rate_limit": {
-						"interval": 30000000000,
-						"burst": 20
 					}
 				}
 			}

caddytest/integration/caddyfile_adapt/global_options_log_sampling.caddyfiletest

@@ -0,0 +1,23 @@
+{
+	log {
+		sampling {
+			interval 300
+			first 50
+			thereafter 40
+		}
+	}
+}
+----------
+{
+	"logging": {
+		"logs": {
+			"default": {
+				"sampling": {
+					"interval": 300,
+					"first": 50,
+					"thereafter": 40
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/header.caddyfiletest

@@ -12,10 +12,14 @@
 	@images path /images/*
 	header @images {
 		Cache-Control "public, max-age=3600, stale-while-revalidate=86400"
+		match {
+			status 200
+		}
 	}
 	header {
 		+Link "Foo"
 		+Link "Bar"
+		match status 200
 	}
 	header >Set Defer
 	header >Replace Deferred Replacement
@@ -42,6 +46,11 @@
 								{
 									"handler": "headers",
 									"response": {
+										"require": {
+											"status_code": [
+												200
+											]
+										},
 										"set": {
 											"Cache-Control": [
 												"public, max-age=3600, stale-while-revalidate=86400"
@@ -136,6 +145,11 @@
 												"Foo",
 												"Bar"
 											]
+										},
+										"require": {
+											"status_code": [
+												200
+											]
 										}
 									}
 								},

caddytest/integration/caddyfile_adapt/heredoc.caddyfiletest

@@ -6,6 +6,7 @@ example.com {
     </html>
     EOF 200
 }
+
 ----------
 {
 	"apps": {

caddytest/integration/caddyfile_adapt/log_sampling.caddyfiletest

@@ -0,0 +1,45 @@
+:80 {
+	log {
+		sampling {
+			interval 300
+			first 50
+			thereafter 40
+		}
+	}
+}
+----------
+{
+	"logging": {
+		"logs": {
+			"default": {
+				"exclude": [
+					"http.log.access.log0"
+				]
+			},
+			"log0": {
+				"sampling": {
+					"interval": 300,
+					"first": 50,
+					"thereafter": 40
+				},
+				"include": [
+					"http.log.access.log0"
+				]
+			}
+		}
+	},
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"logs": {
+						"default_logger_name": "log0"
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/map_and_vars_with_raw_types.caddyfiletest

@@ -27,6 +27,7 @@ vars {
 	ghi 2.3
 	jkl "mn op"
 }
+
 ----------
 {
 	"apps": {

caddytest/integration/caddyfile_adapt/metrics_merge_options.caddyfiletest

@@ -0,0 +1,39 @@
+{
+	metrics
+	servers :80 {
+		metrics {
+			per_host
+		}
+	}
+}
+:80 {
+	respond "Hello"
+}
+
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"body": "Hello",
+									"handler": "static_response"
+								}
+							]
+						}
+					]
+				}
+			},
+			"metrics": {
+				"per_host": true
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/metrics_perhost.caddyfiletest

@@ -0,0 +1,37 @@
+{
+	servers :80 {
+		metrics {
+			per_host
+		}
+	}
+}
+:80 {
+	respond "Hello"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"body": "Hello",
+									"handler": "static_response"
+								}
+							]
+						}
+					]
+				}
+			},
+			"metrics": {
+				"per_host": true
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/php_fastcgi_expanded_form.caddyfiletest

@@ -8,7 +8,7 @@ route {
 		}
 		not path */
 	}
-	redir @canonicalPath {http.request.orig_uri.path}/ 308
+	redir @canonicalPath {orig_path}/{orig_?query} 308
 
 	# If the requested file does not exist, try index files
 	@indexFiles {
@@ -17,7 +17,7 @@ route {
 			split_path .php
 		}
 	}
-	rewrite @indexFiles {http.matchers.file.relative}
+	rewrite @indexFiles {file_match.relative}
 
 	# Proxy PHP files to the FastCGI responder
 	@phpFiles {
@@ -50,7 +50,7 @@ route {
 													"handler": "static_response",
 													"headers": {
 														"Location": [
-															"{http.request.orig_uri.path}/"
+															"{http.request.orig_uri.path}/{http.request.orig_uri.prefixed_query}"
 														]
 													},
 													"status_code": 308

caddytest/integration/caddyfile_adapt/php_fastcgi_handle_response.caddyfiletest

@@ -42,7 +42,7 @@
 									"handler": "static_response",
 									"headers": {
 										"Location": [
-											"{http.request.orig_uri.path}/"
+											"{http.request.orig_uri.path}/{http.request.orig_uri.prefixed_query}"
 										]
 									},
 									"status_code": 308
@@ -58,6 +58,7 @@
 											"{http.request.uri.path}/index.php",
 											"index.php"
 										],
+										"try_policy": "first_exist_fallback",
 										"split_path": [
 											".php"
 										]

caddytest/integration/caddyfile_adapt/php_fastcgi_matcher.caddyfiletest

@@ -33,7 +33,7 @@ php_fastcgi @test localhost:9000
 																	"handler": "static_response",
 																	"headers": {
 																		"Location": [
-																			"{http.request.orig_uri.path}/"
+																			"{http.request.orig_uri.path}/{http.request.orig_uri.prefixed_query}"
 																		]
 																	},
 																	"status_code": 308
@@ -73,7 +73,8 @@ php_fastcgi @test localhost:9000
 																			"{http.request.uri.path}",
 																			"{http.request.uri.path}/index.php",
 																			"index.php"
-																		]
+																		],
+																		"try_policy": "first_exist_fallback"
 																	}
 																}
 															]

caddytest/integration/caddyfile_adapt/php_fastcgi_subdirectives.caddyfiletest

@@ -43,7 +43,7 @@ php_fastcgi localhost:9000 {
 									"handler": "static_response",
 									"headers": {
 										"Location": [
-											"{http.request.orig_uri.path}/"
+											"{http.request.orig_uri.path}/{http.request.orig_uri.prefixed_query}"
 										]
 									},
 									"status_code": 308
@@ -59,6 +59,7 @@ php_fastcgi localhost:9000 {
 											"{http.request.uri.path}/index.php5",
 											"index.php5"
 										],
+										"try_policy": "first_exist_fallback",
 										"split_path": [
 											".php",
 											".php5"

caddytest/integration/caddyfile_adapt/php_fastcgi_try_files_override.caddyfiletest

@@ -46,7 +46,7 @@ php_fastcgi localhost:9000 {
 									"handler": "static_response",
 									"headers": {
 										"Location": [
-											"{http.request.orig_uri.path}/"
+											"{http.request.orig_uri.path}/{http.request.orig_uri.prefixed_query}"
 										]
 									},
 									"status_code": 308

caddytest/integration/caddyfile_adapt/php_fastcgi_try_files_override_no_dir_index.caddyfiletest

@@ -0,0 +1,95 @@
+:8884
+
+php_fastcgi localhost:9000 {
+	# some php_fastcgi-specific subdirectives
+	split .php .php5
+	env VAR1 value1
+	env VAR2 value2
+	root /var/www
+	try_files {path} index.php
+	dial_timeout 3s
+	read_timeout 10s
+	write_timeout 20s
+
+	# passed through to reverse_proxy (directive order doesn't matter!)
+	lb_policy random
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":8884"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"file": {
+										"try_files": [
+											"{http.request.uri.path}",
+											"index.php"
+										],
+										"try_policy": "first_exist_fallback",
+										"split_path": [
+											".php",
+											".php5"
+										]
+									}
+								}
+							],
+							"handle": [
+								{
+									"handler": "rewrite",
+									"uri": "{http.matchers.file.relative}"
+								}
+							]
+						},
+						{
+							"match": [
+								{
+									"path": [
+										"*.php",
+										"*.php5"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "reverse_proxy",
+									"load_balancing": {
+										"selection_policy": {
+											"policy": "random"
+										}
+									},
+									"transport": {
+										"dial_timeout": 3000000000,
+										"env": {
+											"VAR1": "value1",
+											"VAR2": "value2"
+										},
+										"protocol": "fastcgi",
+										"read_timeout": 10000000000,
+										"root": "/var/www",
+										"split_path": [
+											".php",
+											".php5"
+										],
+										"write_timeout": 20000000000
+									},
+									"upstreams": [
+										{
+											"dial": "localhost:9000"
+										}
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/reverse_proxy_health_method.caddyfiletest

@@ -0,0 +1,40 @@
+:8884
+
+reverse_proxy 127.0.0.1:65535 {
+	health_uri /health
+	health_method HEAD
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":8884"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"handler": "reverse_proxy",
+									"health_checks": {
+										"active": {
+											"method": "HEAD",
+											"uri": "/health"
+										}
+									},
+									"upstreams": [
+										{
+											"dial": "127.0.0.1:65535"
+										}
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/reverse_proxy_health_reqbody.caddyfiletest

@@ -0,0 +1,40 @@
+:8884
+
+reverse_proxy 127.0.0.1:65535 {
+	health_uri /health
+	health_request_body "test body"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":8884"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"handler": "reverse_proxy",
+									"health_checks": {
+										"active": {
+											"body": "test body",
+											"uri": "/health"
+										}
+									},
+									"upstreams": [
+										{
+											"dial": "127.0.0.1:65535"
+										}
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/reverse_proxy_localaddr.caddyfiletest

@@ -0,0 +1,57 @@
+https://example.com {
+	reverse_proxy http://localhost:54321 {
+		transport http {
+			local_address 192.168.0.1
+		}
+	}
+}
+
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "reverse_proxy",
+													"transport": {
+														"local_address": "192.168.0.1",
+														"protocol": "http"
+													},
+													"upstreams": [
+														{
+															"dial": "localhost:54321"
+														}
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/tls_automation_wildcard_force_automate.caddyfiletest

@@ -0,0 +1,180 @@
+automated1.example.com {
+	tls force_automate
+	respond "Automated!"
+}
+
+automated2.example.com {
+	tls force_automate
+	respond "Automated!"
+}
+
+shadowed.example.com {
+	respond "Shadowed!"
+}
+
+*.example.com {
+	tls cert.pem key.pem
+	respond "Wildcard!"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"automated1.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Automated!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"automated2.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Automated!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"shadowed.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Shadowed!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"*.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Wildcard!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"tls_connection_policies": [
+						{
+							"match": {
+								"sni": [
+									"automated1.example.com"
+								]
+							}
+						},
+						{
+							"match": {
+								"sni": [
+									"automated2.example.com"
+								]
+							}
+						},
+						{
+							"match": {
+								"sni": [
+									"*.example.com"
+								]
+							},
+							"certificate_selection": {
+								"any_tag": [
+									"cert0"
+								]
+							}
+						},
+						{}
+					]
+				}
+			}
+		},
+		"tls": {
+			"certificates": {
+				"automate": [
+					"automated1.example.com",
+					"automated2.example.com"
+				],
+				"load_files": [
+					{
+						"certificate": "cert.pem",
+						"key": "key.pem",
+						"tags": [
+							"cert0"
+						]
+					}
+				]
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/tls_automation_wildcard_shadowing.caddyfiletest

@@ -0,0 +1,102 @@
+subdomain.example.com {
+	respond "Subdomain!"
+}
+
+*.example.com {
+	tls cert.pem key.pem
+	respond "Wildcard!"
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"subdomain.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Subdomain!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"*.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"body": "Wildcard!",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"tls_connection_policies": [
+						{
+							"match": {
+								"sni": [
+									"*.example.com"
+								]
+							},
+							"certificate_selection": {
+								"any_tag": [
+									"cert0"
+								]
+							}
+						},
+						{}
+					]
+				}
+			}
+		},
+		"tls": {
+			"certificates": {
+				"load_files": [
+					{
+						"certificate": "cert.pem",
+						"key": "key.pem",
+						"tags": [
+							"cert0"
+						]
+					}
+				]
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/wildcard_pattern.caddyfiletest

@@ -0,0 +1,157 @@
+*.example.com {
+	tls foo@example.com {
+		dns mock
+	}
+
+	@foo host foo.example.com
+	handle @foo {
+		respond "Foo!"
+	}
+
+	@bar host bar.example.com
+	handle @bar {
+		respond "Bar!"
+	}
+
+	# Fallback for otherwise unhandled domains
+	handle {
+		abort
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"*.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"group": "group3",
+											"handle": [
+												{
+													"handler": "subroute",
+													"routes": [
+														{
+															"handle": [
+																{
+																	"body": "Foo!",
+																	"handler": "static_response"
+																}
+															]
+														}
+													]
+												}
+											],
+											"match": [
+												{
+													"host": [
+														"foo.example.com"
+													]
+												}
+											]
+										},
+										{
+											"group": "group3",
+											"handle": [
+												{
+													"handler": "subroute",
+													"routes": [
+														{
+															"handle": [
+																{
+																	"body": "Bar!",
+																	"handler": "static_response"
+																}
+															]
+														}
+													]
+												}
+											],
+											"match": [
+												{
+													"host": [
+														"bar.example.com"
+													]
+												}
+											]
+										},
+										{
+											"group": "group3",
+											"handle": [
+												{
+													"handler": "subroute",
+													"routes": [
+														{
+															"handle": [
+																{
+																	"abort": true,
+																	"handler": "static_response"
+																}
+															]
+														}
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		},
+		"tls": {
+			"automation": {
+				"policies": [
+					{
+						"subjects": [
+							"*.example.com"
+						],
+						"issuers": [
+							{
+								"challenges": {
+									"dns": {
+										"provider": {
+											"name": "mock"
+										}
+									}
+								},
+								"email": "foo@example.com",
+								"module": "acme"
+							},
+							{
+								"ca": "https://acme.zerossl.com/v2/DV90",
+								"challenges": {
+									"dns": {
+										"provider": {
+											"name": "mock"
+										}
+									}
+								},
+								"email": "foo@example.com",
+								"module": "acme"
+							}
+						]
+					}
+				]
+			}
+		}
+	}
+}

caddytest/integration/intercept_test.go

@@ -18,17 +18,23 @@ func TestIntercept(t *testing.T) {
 	
 		localhost:9080 {
 			respond /intercept "I'm a teapot" 408
+			header /intercept To-Intercept ok
 			respond /no-intercept "I'm not a teapot"
 
 			intercept {
 				@teapot status 408
 				handle_response @teapot {
+					header /intercept intercepted {resp.header.To-Intercept}
 					respond /intercept "I'm a combined coffee/tea pot that is temporarily out of coffee" 503
 				}
 			}	
 		}
 		`, "caddyfile")
 
-	tester.AssertGetResponse("http://localhost:9080/intercept", 503, "I'm a combined coffee/tea pot that is temporarily out of coffee")
+	r, _ := tester.AssertGetResponse("http://localhost:9080/intercept", 503, "I'm a combined coffee/tea pot that is temporarily out of coffee")
+	if r.Header.Get("intercepted") != "ok" {
+		t.Fatalf(`header "intercepted" value is not "ok": %s`, r.Header.Get("intercepted"))
+	}
+
 	tester.AssertGetResponse("http://localhost:9080/no-intercept", 200, "I'm not a teapot")
 }

caddytest/integration/mockdns_test.go

@@ -0,0 +1,61 @@
+package integration
+
+import (
+	"context"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
+	"github.com/caddyserver/certmagic"
+	"github.com/libdns/libdns"
+)
+
+func init() {
+	caddy.RegisterModule(MockDNSProvider{})
+}
+
+// MockDNSProvider is a mock DNS provider, for testing config with DNS modules.
+type MockDNSProvider struct{}
+
+// CaddyModule returns the Caddy module information.
+func (MockDNSProvider) CaddyModule() caddy.ModuleInfo {
+	return caddy.ModuleInfo{
+		ID:  "dns.providers.mock",
+		New: func() caddy.Module { return new(MockDNSProvider) },
+	}
+}
+
+// Provision sets up the module.
+func (MockDNSProvider) Provision(ctx caddy.Context) error {
+	return nil
+}
+
+// UnmarshalCaddyfile sets up the module from Caddyfile tokens.
+func (MockDNSProvider) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
+	return nil
+}
+
+// AppendRecords appends DNS records to the zone.
+func (MockDNSProvider) AppendRecords(ctx context.Context, zone string, recs []libdns.Record) ([]libdns.Record, error) {
+	return nil, nil
+}
+
+// DeleteRecords deletes DNS records from the zone.
+func (MockDNSProvider) DeleteRecords(ctx context.Context, zone string, recs []libdns.Record) ([]libdns.Record, error) {
+	return nil, nil
+}
+
+// GetRecords gets DNS records from the zone.
+func (MockDNSProvider) GetRecords(ctx context.Context, zone string) ([]libdns.Record, error) {
+	return nil, nil
+}
+
+// SetRecords sets DNS records in the zone.
+func (MockDNSProvider) SetRecords(ctx context.Context, zone string, recs []libdns.Record) ([]libdns.Record, error) {
+	return nil, nil
+}
+
+// Interface guard
+var _ caddyfile.Unmarshaler = (*MockDNSProvider)(nil)
+var _ certmagic.DNSProvider = (*MockDNSProvider)(nil)
+var _ caddy.Provisioner = (*MockDNSProvider)(nil)
+var _ caddy.Module = (*MockDNSProvider)(nil)

caddytest/integration/testdata/foo_with_multiple_trailing_newlines.txt

@@ -0,0 +1,2 @@
+foo
+

caddytest/integration/testdata/foo_with_trailing_newline.txt

@@ -0,0 +1 @@
+foo

cmd/cobra.go

@@ -8,7 +8,8 @@ import (
 	"github.com/caddyserver/caddy/v2"
 )
 
-var rootCmd = &cobra.Command{
+var defaultFactory = newRootCommandFactory(func() *cobra.Command {
+	return &cobra.Command{
 		Use: "caddy",
 		Long: `Caddy is an extensible server platform written in Go.
 
@@ -100,14 +101,17 @@ https://caddyserver.com/docs/running
 		// caddy has an error provisioning its modules, for instance...
 		SilenceUsage: true,
 		Version:      onlyVersionText(),
-}
+	}
+})
 
 const fullDocsFooter = `Full documentation is available at:
 https://caddyserver.com/docs/command-line`
 
 func init() {
+	defaultFactory.Use(func(rootCmd *cobra.Command) {
 		rootCmd.SetVersionTemplate("{{.Version}}\n")
 		rootCmd.SetHelpTemplate(rootCmd.HelpTemplate() + "\n" + fullDocsFooter + "\n")
+	})
 }
 
 func onlyVersionText() string {

cmd/commandfactory.go

@@ -0,0 +1,28 @@
+package caddycmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+type rootCommandFactory struct {
+	constructor func() *cobra.Command
+	options     []func(*cobra.Command)
+}
+
+func newRootCommandFactory(fn func() *cobra.Command) *rootCommandFactory {
+	return &rootCommandFactory{
+		constructor: fn,
+	}
+}
+
+func (f *rootCommandFactory) Use(fn func(cmd *cobra.Command)) {
+	f.options = append(f.options, fn)
+}
+
+func (f *rootCommandFactory) Build() *cobra.Command {
+	o := f.constructor()
+	for _, v := range f.options {
+		v(o)
+	}
+	return o
+}

cmd/commandfuncs.go

@@ -74,6 +74,10 @@ func cmdStart(fl Flags) (int, error) {
 	// sure by giving it some random bytes and having it echo
 	// them back to us)
 	cmd := exec.Command(os.Args[0], "run", "--pingback", ln.Addr().String())
+	// we should be able to run caddy in relative paths
+	if errors.Is(cmd.Err, exec.ErrDot) {
+		cmd.Err = nil
+	}
 	if configFlag != "" {
 		cmd.Args = append(cmd.Args, "--config", configFlag)
 	}
@@ -167,6 +171,10 @@ func cmdStart(fl Flags) (int, error) {
 func cmdRun(fl Flags) (int, error) {
 	caddy.TrapSignals()
 
+	logger := caddy.Log()
+	undoMaxProcs := setResourceLimits(logger)
+	defer undoMaxProcs()
+
 	configFlag := fl.String("config")
 	configAdapterFlag := fl.String("adapter")
 	resumeFlag := fl.Bool("resume")
@@ -192,18 +200,18 @@ func cmdRun(fl Flags) (int, error) {
 		config, err = os.ReadFile(caddy.ConfigAutosavePath)
 		if errors.Is(err, fs.ErrNotExist) {
 			// not a bad error; just can't resume if autosave file doesn't exist
-			caddy.Log().Info("no autosave file exists", zap.String("autosave_file", caddy.ConfigAutosavePath))
+			logger.Info("no autosave file exists", zap.String("autosave_file", caddy.ConfigAutosavePath))
 			resumeFlag = false
 		} else if err != nil {
 			return caddy.ExitCodeFailedStartup, err
 		} else {
 			if configFlag == "" {
-				caddy.Log().Info("resuming from last configuration",
+				logger.Info("resuming from last configuration",
 					zap.String("autosave_file", caddy.ConfigAutosavePath))
 			} else {
 				// if they also specified a config file, user should be aware that we're not
 				// using it (doing so could lead to data/config loss by overwriting!)
-				caddy.Log().Warn("--config and --resume flags were used together; ignoring --config and resuming from last configuration",
+				logger.Warn("--config and --resume flags were used together; ignoring --config and resuming from last configuration",
 					zap.String("autosave_file", caddy.ConfigAutosavePath))
 			}
 		}
@@ -221,7 +229,7 @@ func cmdRun(fl Flags) (int, error) {
 	if pidfileFlag != "" {
 		err := caddy.PIDFile(pidfileFlag)
 		if err != nil {
-			caddy.Log().Error("unable to write PID file",
+			logger.Error("unable to write PID file",
 				zap.String("pidfile", pidfileFlag),
 				zap.Error(err))
 		}
@@ -232,7 +240,7 @@ func cmdRun(fl Flags) (int, error) {
 	if err != nil {
 		return caddy.ExitCodeFailedStartup, fmt.Errorf("loading initial config: %v", err)
 	}
-	caddy.Log().Info("serving initial configuration")
+	logger.Info("serving initial configuration")
 
 	// if we are to report to another process the successful start
 	// of the server, do so now by echoing back contents of stdin
@@ -268,15 +276,15 @@ func cmdRun(fl Flags) (int, error) {
 	switch runtime.GOOS {
 	case "windows":
 		if os.Getenv("HOME") == "" && os.Getenv("USERPROFILE") == "" && !hasXDG {
-			caddy.Log().Warn("neither HOME nor USERPROFILE environment variables are set - please fix; some assets might be stored in ./caddy")
+			logger.Warn("neither HOME nor USERPROFILE environment variables are set - please fix; some assets might be stored in ./caddy")
 		}
 	case "plan9":
 		if os.Getenv("home") == "" && !hasXDG {
-			caddy.Log().Warn("$home environment variable is empty - please fix; some assets might be stored in ./caddy")
+			logger.Warn("$home environment variable is empty - please fix; some assets might be stored in ./caddy")
 		}
 	default:
 		if os.Getenv("HOME") == "" && !hasXDG {
-			caddy.Log().Warn("$HOME environment variable is empty - please fix; some assets might be stored in ./caddy")
+			logger.Warn("$HOME environment variable is empty - please fix; some assets might be stored in ./caddy")
 		}
 	}
 
@@ -556,10 +564,15 @@ func cmdValidateConfig(fl Flags) (int, error) {
 
 func cmdFmt(fl Flags) (int, error) {
 	configFile := fl.Arg(0)
-	if configFile == "" {
+	configFlag := fl.String("config")
-		configFile = "Caddyfile"
+	if (len(fl.Args()) > 1) || (configFlag != "" && configFile != "") {
+		return caddy.ExitCodeFailedStartup, fmt.Errorf("fmt does not support multiple files %s %s", configFlag, strings.Join(fl.Args(), " "))
+	}
+	if configFile == "" && configFlag == "" {
+		configFile = "Caddyfile"
+	} else if configFile == "" {
+		configFile = configFlag
 	}
-
 	// as a special case, read from stdin if the file name is "-"
 	if configFile == "-" {
 		input, err := io.ReadAll(os.Stdin)
@@ -656,6 +669,8 @@ func AdminAPIRequest(adminAddr, method, uri string, headers http.Header, body io
 			return nil, err
 		}
 		parsedAddr.Host = addr
+	} else if parsedAddr.IsFdNetwork() {
+		origin = "http://127.0.0.1"
 	}
 
 	// form the request
@@ -663,13 +678,13 @@ func AdminAPIRequest(adminAddr, method, uri string, headers http.Header, body io
 	if err != nil {
 		return nil, fmt.Errorf("making request: %v", err)
 	}
-	if parsedAddr.IsUnixNetwork() {
+	if parsedAddr.IsUnixNetwork() || parsedAddr.IsFdNetwork() {
 		// We used to conform to RFC 2616 Section 14.26 which requires
 		// an empty host header when there is no host, as is the case
-		// with unix sockets. However, Go required a Host value so we
+		// with unix sockets and socket fds. However, Go required a
-		// used a hack of a space character as the host (it would see
+		// Host value so we used a hack of a space character as the host
-		// the Host was non-empty, then trim the space later). As of
+		// (it would see the Host was non-empty, then trim the space later).
-		// Go 1.20.6 (July 2023), this hack no longer works. See:
+		// As of Go 1.20.6 (July 2023), this hack no longer works. See:
 		// https://github.com/golang/go/issues/60374
 		// See also the discussion here:
 		// https://github.com/golang/go/issues/61431
@@ -710,7 +725,7 @@ func AdminAPIRequest(adminAddr, method, uri string, headers http.Header, body io
 
 	// if it didn't work, let the user know
 	if resp.StatusCode >= 400 {
-		respBody, err := io.ReadAll(io.LimitReader(resp.Body, 1024*10))
+		respBody, err := io.ReadAll(io.LimitReader(resp.Body, 1024*1024*2))
 		if err != nil {
 			return nil, fmt.Errorf("HTTP %d: reading error message: %v", resp.StatusCode, err)
 		}

cmd/commands.go

@@ -388,6 +388,7 @@ When reading from stdin, the --overwrite flag has no effect: the result
 is always printed to stdout.
 `,
 		CobraFunc: func(cmd *cobra.Command) {
+			cmd.Flags().StringP("config", "c", "", "Configuration file")
 			cmd.Flags().BoolP("overwrite", "w", false, "Overwrite the input file with the results")
 			cmd.Flags().BoolP("diff", "d", false, "Print the differences between the input file and the formatted output")
 			cmd.RunE = WrapCommandFuncForCobra(cmdFmt)
@@ -409,12 +410,13 @@ latest versions. EXPERIMENTAL: May be changed or removed.
 
 	RegisterCommand(Command{
 		Name:  "add-package",
-		Usage: "<packages...>",
+		Usage: "<package[@version]...>",
 		Short: "Adds Caddy packages (EXPERIMENTAL)",
 		Long: `
 Downloads an updated Caddy binary with the specified packages (module/plugin)
-added. Retains existing packages. Returns an error if the any of packages are
+added, with an optional version specified (e.g., "package@version"). Retains
-already included. EXPERIMENTAL: May be changed or removed.
+existing packages. Returns an error if any of the specified packages are already
+included. EXPERIMENTAL: May be changed or removed.
 `,
 		CobraFunc: func(cmd *cobra.Command) {
 			cmd.Flags().BoolP("keep-backup", "k", false, "Keep the backed up binary, instead of deleting it")
@@ -438,7 +440,8 @@ EXPERIMENTAL: May be changed or removed.
 		},
 	})
 
-	RegisterCommand(Command{
+	defaultFactory.Use(func(rootCmd *cobra.Command) {
+		rootCmd.AddCommand(caddyCmdToCobra(Command{
 			Name:  "manpage",
 			Usage: "--directory <path>",
 			Short: "Generates the manual pages for Caddy commands",
@@ -468,7 +471,7 @@ argument of --directory. If the directory does not exist, it will be created.
 					return caddy.ExitCodeSuccess, nil
 				})
 			},
-	})
+		}))
 
 		// source: https://github.com/spf13/cobra/blob/main/shell_completions.md
 		rootCmd.AddCommand(&cobra.Command{
@@ -531,6 +534,7 @@ argument of --directory. If the directory does not exist, it will be created.
 				}
 			},
 		})
+	})
 }
 
 // RegisterCommand registers the command cmd.
@@ -563,7 +567,9 @@ func RegisterCommand(cmd Command) {
 	if !commandNameRegex.MatchString(cmd.Name) {
 		panic("invalid command name")
 	}
+	defaultFactory.Use(func(rootCmd *cobra.Command) {
 		rootCmd.AddCommand(caddyCmdToCobra(cmd))
+	})
 }
 
 var commandNameRegex = regexp.MustCompile(`^[a-z0-9]$|^([a-z0-9]+-?[a-z0-9]*)+[a-z0-9]$`)

cmd/main.go

@@ -24,6 +24,7 @@ import (
 	"io"
 	"io/fs"
 	"log"
+	"log/slog"
 	"net"
 	"os"
 	"path/filepath"
@@ -33,10 +34,12 @@ import (
 	"strings"
 	"time"
 
+	"github.com/KimMachineGun/automemlimit/memlimit"
 	"github.com/caddyserver/certmagic"
 	"github.com/spf13/pflag"
 	"go.uber.org/automaxprocs/maxprocs"
 	"go.uber.org/zap"
+	"go.uber.org/zap/exp/zapslog"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
@@ -66,13 +69,7 @@ func Main() {
 		os.Exit(caddy.ExitCodeFailedStartup)
 	}
 
-	undo, err := maxprocs.Set()
+	if err := defaultFactory.Build().Execute(); err != nil {
-	defer undo()
-	if err != nil {
-		caddy.Log().Warn("failed to set GOMAXPROCS", zap.Error(err))
-	}
-
-	if err := rootCmd.Execute(); err != nil {
 		var exitError *exitError
 		if errors.As(err, &exitError) {
 			os.Exit(exitError.ExitCode)
@@ -467,6 +464,31 @@ func printEnvironment() {
 	}
 }
 
+func setResourceLimits(logger *zap.Logger) func() {
+	// Configure the maximum number of CPUs to use to match the Linux container quota (if any)
+	// See https://pkg.go.dev/runtime#GOMAXPROCS
+	undo, err := maxprocs.Set(maxprocs.Logger(logger.Sugar().Infof))
+	if err != nil {
+		logger.Warn("failed to set GOMAXPROCS", zap.Error(err))
+	}
+
+	// Configure the maximum memory to use to match the Linux container quota (if any) or system memory
+	// See https://pkg.go.dev/runtime/debug#SetMemoryLimit
+	_, _ = memlimit.SetGoMemLimitWithOpts(
+		memlimit.WithLogger(
+			slog.New(zapslog.NewHandler(logger.Core())),
+		),
+		memlimit.WithProvider(
+			memlimit.ApplyFallback(
+				memlimit.FromCgroup,
+				memlimit.FromSystem,
+			),
+		),
+	)
+
+	return undo
+}
+
 // StringSlice is a flag.Value that enables repeated use of a string flag.
 type StringSlice []string
 

cmd/packagesfuncs.go

@@ -46,6 +46,25 @@ func cmdUpgrade(fl Flags) (int, error) {
 	return upgradeBuild(pluginPkgs, fl)
 }
 
+func splitModule(arg string) (module, version string, err error) {
+	const versionSplit = "@"
+
+	// accommodate module paths that have @ in them, but we can only tolerate that if there's also
+	// a version, otherwise we don't know if it's a version separator or part of the file path
+	lastVersionSplit := strings.LastIndex(arg, versionSplit)
+	if lastVersionSplit < 0 {
+		module = arg
+	} else {
+		module, version = arg[:lastVersionSplit], arg[lastVersionSplit+1:]
+	}
+
+	if module == "" {
+		err = fmt.Errorf("module name is required")
+	}
+
+	return
+}
+
 func cmdAddPackage(fl Flags) (int, error) {
 	if len(fl.Args()) == 0 {
 		return caddy.ExitCodeFailedStartup, fmt.Errorf("at least one package name must be specified")
@@ -60,10 +79,15 @@ func cmdAddPackage(fl Flags) (int, error) {
 	}
 
 	for _, arg := range fl.Args() {
-		if _, ok := pluginPkgs[arg]; ok {
+		module, version, err := splitModule(arg)
+		if err != nil {
+			return caddy.ExitCodeFailedStartup, fmt.Errorf("invalid module name: %v", err)
+		}
+		// only allow a version to be specified if it's different from the existing version
+		if _, ok := pluginPkgs[module]; ok && !(version != "" && pluginPkgs[module].Version != version) {
 			return caddy.ExitCodeFailedStartup, fmt.Errorf("package is already added")
 		}
-		pluginPkgs[arg] = struct{}{}
+		pluginPkgs[module] = pluginPackage{Version: version, Path: module}
 	}
 
 	return upgradeBuild(pluginPkgs, fl)
@@ -83,7 +107,11 @@ func cmdRemovePackage(fl Flags) (int, error) {
 	}
 
 	for _, arg := range fl.Args() {
-		if _, ok := pluginPkgs[arg]; !ok {
+		module, _, err := splitModule(arg)
+		if err != nil {
+			return caddy.ExitCodeFailedStartup, fmt.Errorf("invalid module name: %v", err)
+		}
+		if _, ok := pluginPkgs[module]; !ok {
 			// package does not exist
 			return caddy.ExitCodeFailedStartup, fmt.Errorf("package is not added")
 		}
@@ -93,7 +121,7 @@ func cmdRemovePackage(fl Flags) (int, error) {
 	return upgradeBuild(pluginPkgs, fl)
 }
 
-func upgradeBuild(pluginPkgs map[string]struct{}, fl Flags) (int, error) {
+func upgradeBuild(pluginPkgs map[string]pluginPackage, fl Flags) (int, error) {
 	l := caddy.Log()
 
 	thisExecPath, err := os.Executable()
@@ -120,8 +148,8 @@ func upgradeBuild(pluginPkgs map[string]struct{}, fl Flags) (int, error) {
 		"os":   {runtime.GOOS},
 		"arch": {runtime.GOARCH},
 	}
-	for pkg := range pluginPkgs {
+	for _, pkgInfo := range pluginPkgs {
-		qs.Add("p", pkg)
+		qs.Add("p", pkgInfo.String())
 	}
 
 	// initiate the build
@@ -276,14 +304,14 @@ func downloadBuild(qs url.Values) (*http.Response, error) {
 	return resp, nil
 }
 
-func getPluginPackages(modules []moduleInfo) (map[string]struct{}, error) {
+func getPluginPackages(modules []moduleInfo) (map[string]pluginPackage, error) {
-	pluginPkgs := make(map[string]struct{})
+	pluginPkgs := make(map[string]pluginPackage)
 	for _, mod := range modules {
 		if mod.goModule.Replace != nil {
 			return nil, fmt.Errorf("cannot auto-upgrade when Go module has been replaced: %s => %s",
 				mod.goModule.Path, mod.goModule.Replace.Path)
 		}
-		pluginPkgs[mod.goModule.Path] = struct{}{}
+		pluginPkgs[mod.goModule.Path] = pluginPackage{Version: mod.goModule.Version, Path: mod.goModule.Path}
 	}
 	return pluginPkgs, nil
 }
@@ -312,3 +340,15 @@ func writeCaddyBinary(path string, body *io.ReadCloser, fileInfo os.FileInfo) er
 }
 
 const downloadPath = "https://caddyserver.com/api/download"
+
+type pluginPackage struct {
+	Version string
+	Path    string
+}
+
+func (p pluginPackage) String() string {
+	if p.Version == "" {
+		return p.Path
+	}
+	return p.Path + "@" + p.Version
+}

cmd/storagefuncs.go

@@ -21,6 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"os"
 
 	"github.com/caddyserver/certmagic"
@@ -190,12 +191,20 @@ func cmdExportStorage(fl Flags) (int, error) {
 	for _, k := range keys {
 		info, err := stor.Stat(ctx, k)
 		if err != nil {
+			if errors.Is(err, fs.ErrNotExist) {
+				caddy.Log().Warn(fmt.Sprintf("key: %s removed while export is in-progress", k))
+				continue
+			}
 			return caddy.ExitCodeFailedQuit, err
 		}
 
 		if info.IsTerminal {
 			v, err := stor.Load(ctx, k)
 			if err != nil {
+				if errors.Is(err, fs.ErrNotExist) {
+					caddy.Log().Warn(fmt.Sprintf("key: %s removed while export is in-progress", k))
+					continue
+				}
 				return caddy.ExitCodeFailedQuit, err
 			}
 

context.go

@@ -23,6 +23,8 @@ import (
 	"reflect"
 
 	"github.com/caddyserver/certmagic"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/collectors"
 	"go.uber.org/zap"
 	"go.uber.org/zap/exp/zapslog"
 
@@ -47,6 +49,7 @@ type Context struct {
 	ancestry        []Module
 	cleanupFuncs    []func()                // invoked at every config unload
 	exitFuncs       []func(context.Context) // invoked at config unload ONLY IF the process is exiting (EXPERIMENTAL)
+	metricsRegistry *prometheus.Registry
 }
 
 // NewContext provides a new context derived from the given
@@ -58,7 +61,7 @@ type Context struct {
 // modules which are loaded will be properly unloaded.
 // See standard library context package's documentation.
 func NewContext(ctx Context) (Context, context.CancelFunc) {
-	newCtx := Context{moduleInstances: make(map[string][]Module), cfg: ctx.cfg}
+	newCtx := Context{moduleInstances: make(map[string][]Module), cfg: ctx.cfg, metricsRegistry: prometheus.NewPedanticRegistry()}
 	c, cancel := context.WithCancel(ctx.Context)
 	wrappedCancel := func() {
 		cancel()
@@ -79,6 +82,7 @@ func NewContext(ctx Context) (Context, context.CancelFunc) {
 		}
 	}
 	newCtx.Context = c
+	newCtx.initMetrics()
 	return newCtx, wrappedCancel
 }
 
@@ -97,6 +101,24 @@ func (ctx *Context) Filesystems() FileSystems {
 	return ctx.cfg.filesystems
 }
 
+// Returns the active metrics registry for the context
+// EXPERIMENTAL: This API is subject to change.
+func (ctx *Context) GetMetricsRegistry() *prometheus.Registry {
+	return ctx.metricsRegistry
+}
+
+func (ctx *Context) initMetrics() {
+	ctx.metricsRegistry.MustRegister(
+		collectors.NewBuildInfoCollector(),
+		collectors.NewProcessCollector(collectors.ProcessCollectorOpts{}),
+		collectors.NewGoCollector(),
+		adminMetrics.requestCount,
+		adminMetrics.requestErrors,
+		globalMetrics.configSuccess,
+		globalMetrics.configSuccessTime,
+	)
+}
+
 // OnExit executes f when the process exits gracefully.
 // The function is only executed if the process is gracefully
 // shut down while this context is active.
@@ -363,6 +385,17 @@ func (ctx Context) LoadModuleByID(id string, rawMsg json.RawMessage) (any, error
 		return nil, fmt.Errorf("module value cannot be null")
 	}
 
+	// if this is an app module, keep a reference to it,
+	// since submodules may need to reference it during
+	// provisioning (even though the parent app module
+	// may not be fully provisioned yet; this is the case
+	// with the tls app's automation policies, which may
+	// refer to the tls app to check if a global DNS
+	// module has been configured for DNS challenges)
+	if appModule, ok := val.(App); ok {
+		ctx.cfg.apps[id] = appModule
+	}
+
 	ctx.ancestry = append(ctx.ancestry, val)
 
 	if prov, ok := val.(Provisioner); ok {
@@ -449,7 +482,6 @@ func (ctx Context) App(name string) (any, error) {
 	if appRaw != nil {
 		ctx.cfg.AppsRaw[name] = nil // allow GC to deallocate
 	}
-	ctx.cfg.apps[name] = modVal.(App)
 	return modVal, nil
 }
 
@@ -535,12 +567,8 @@ func (ctx Context) Slogger() *slog.Logger {
 	if mod == nil {
 		return slog.New(zapslog.NewHandler(Log().Core(), nil))
 	}
-
+	return slog.New(zapslog.NewHandler(ctx.cfg.Logging.Logger(mod).Core(),
-	return slog.New(zapslog.NewHandler(
+		zapslog.WithName(string(mod.CaddyModule().ID)),
-		ctx.cfg.Logging.Logger(mod).Core(),
-		&zapslog.HandlerOptions{
-			LoggerName: string(mod.CaddyModule().ID),
-		},
 	))
 }
 

filepath.go

@@ -0,0 +1,39 @@
+// Copyright 2015 Matthew Holt and The Caddy Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build !windows
+
+package caddy
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// FastAbs is an optimized version of filepath.Abs for Unix systems,
+// since we don't expect the working directory to ever change once
+// Caddy is running. Avoid the os.Getwd() syscall overhead.
+// It's overall the same as stdlib's implementation, the difference
+// being cached working directory.
+func FastAbs(path string) (string, error) {
+	if filepath.IsAbs(path) {
+		return filepath.Clean(path), nil
+	}
+	if wderr != nil {
+		return "", wderr
+	}
+	return filepath.Join(wd, path), nil
+}
+
+var wd, wderr = os.Getwd()

filepath_windows.go

@@ -0,0 +1,27 @@
+// Copyright 2015 Matthew Holt and The Caddy Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package caddy
+
+import (
+	"path/filepath"
+)
+
+// FastAbs can't be optimized on Windows because there
+// are special file paths that require the use of syscall.FullPath
+// to handle correctly.
+// Just call stdlib's implementation which uses that function.
+func FastAbs(path string) (string, error) {
+	return filepath.Abs(path)
+}

filesystem.go

@@ -1,3 +1,17 @@
+// Copyright 2015 Matthew Holt and The Caddy Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package caddy
 
 import "io/fs"

go.mod

@@ -1,110 +1,112 @@
 module github.com/caddyserver/caddy/v2
 
-go 1.21.0
+go 1.24
-
-toolchain go1.22.2
 
 require (
-	github.com/BurntSushi/toml v1.3.2
+	github.com/BurntSushi/toml v1.4.0
-	github.com/Masterminds/sprig/v3 v3.2.3
+	github.com/KimMachineGun/automemlimit v0.7.1
-	github.com/alecthomas/chroma/v2 v2.13.0
+	github.com/Masterminds/sprig/v3 v3.3.0
+	github.com/alecthomas/chroma/v2 v2.15.0
 	github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b
-	github.com/caddyserver/certmagic v0.21.3
+	github.com/caddyserver/certmagic v0.22.0
 	github.com/caddyserver/zerossl v0.1.3
+	github.com/cloudflare/circl v1.6.0
 	github.com/dustin/go-humanize v1.0.1
-	github.com/go-chi/chi/v5 v5.0.12
+	github.com/go-chi/chi/v5 v5.2.1
-	github.com/google/cel-go v0.20.1
+	github.com/google/cel-go v0.24.1
 	github.com/google/uuid v1.6.0
-	github.com/klauspost/compress v1.17.8
+	github.com/klauspost/compress v1.18.0
-	github.com/klauspost/cpuid/v2 v2.2.7
+	github.com/klauspost/cpuid/v2 v2.2.10
-	github.com/mholt/acmez/v2 v2.0.1
+	github.com/mholt/acmez/v3 v3.1.0
 	github.com/prometheus/client_golang v1.19.1
-	github.com/quic-go/quic-go v0.44.0
+	github.com/quic-go/quic-go v0.50.0
 	github.com/smallstep/certificates v0.26.1
 	github.com/smallstep/nosql v0.6.1
 	github.com/smallstep/truststore v0.13.0
-	github.com/spf13/cobra v1.8.0
+	github.com/spf13/cobra v1.9.1
-	github.com/spf13/pflag v1.0.5
+	github.com/spf13/pflag v1.0.6
-	github.com/stretchr/testify v1.9.0
+	github.com/stretchr/testify v1.10.0
 	github.com/tailscale/tscert v0.0.0-20240608151842-d3f834017e53
-	github.com/yuin/goldmark v1.7.1
+	github.com/yuin/goldmark v1.7.8
 	github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.56.0
 	go.opentelemetry.io/contrib/propagators/autoprop v0.42.0
-	go.opentelemetry.io/otel v1.24.0
+	go.opentelemetry.io/otel v1.31.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.21.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.31.0
-	go.opentelemetry.io/otel/sdk v1.21.0
+	go.opentelemetry.io/otel/sdk v1.31.0
-	go.uber.org/automaxprocs v1.5.3
+	go.uber.org/automaxprocs v1.6.0
 	go.uber.org/zap v1.27.0
-	go.uber.org/zap/exp v0.2.0
+	go.uber.org/zap/exp v0.3.0
-	golang.org/x/crypto v0.23.0
+	golang.org/x/crypto v0.36.0
-	golang.org/x/crypto/x509roots/fallback v0.0.0-20240507223354-67b13616a595
+	golang.org/x/crypto/x509roots/fallback v0.0.0-20250305170421-49bf5b80c810
-	golang.org/x/net v0.25.0
+	golang.org/x/net v0.37.0
-	golang.org/x/sync v0.7.0
+	golang.org/x/sync v0.12.0
-	golang.org/x/term v0.20.0
+	golang.org/x/term v0.30.0
-	golang.org/x/time v0.5.0
+	golang.org/x/time v0.11.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	cel.dev/expr v0.19.1 // indirect
+	dario.cat/mergo v1.0.1 // indirect
 	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/francoispqt/gojay v1.2.13 // indirect
 	github.com/fxamacker/cbor/v2 v2.6.0 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.3 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.4 // indirect
 	github.com/go-kit/log v0.2.1 // indirect
-	github.com/golang/glog v1.2.0 // indirect
 	github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745 // indirect
 	github.com/google/go-tpm v0.9.0 // indirect
 	github.com/google/go-tspi v0.3.0 // indirect
 	github.com/google/pprof v0.0.0-20231212022811-ec68065c825e // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.18.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.22.0 // indirect
 	github.com/onsi/ginkgo/v2 v2.13.2 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/quic-go/qpack v0.4.0 // indirect
+	github.com/quic-go/qpack v0.5.1 // indirect
 	github.com/smallstep/go-attestation v0.4.4-0.20240109183208-413678f90935 // indirect
 	github.com/smallstep/pkcs7 v0.0.0-20231024181729-3b98ecc1ca81 // indirect
 	github.com/smallstep/scep v0.0.0-20231024192529-aee96d7ad34d // indirect
 	github.com/x448/float16 v0.8.4 // indirect
-	github.com/zeebo/blake3 v0.2.3 // indirect
+	github.com/zeebo/blake3 v0.2.4 // indirect
 	go.opentelemetry.io/contrib/propagators/aws v1.17.0 // indirect
 	go.opentelemetry.io/contrib/propagators/b3 v1.17.0 // indirect
 	go.opentelemetry.io/contrib/propagators/jaeger v1.17.0 // indirect
 	go.opentelemetry.io/contrib/propagators/ot v1.17.0 // indirect
-	go.uber.org/mock v0.4.0 // indirect
+	go.uber.org/mock v0.5.0 // indirect
 	golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240506185236-b8a5c65736ae // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20241007155032-5fefd90f89a9 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240429193739-8cf5692501f6 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241007155032-5fefd90f89a9 // indirect
 )
 
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
 	github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
-	github.com/Masterminds/semver/v3 v3.2.0 // indirect
+	github.com/Masterminds/semver/v3 v3.3.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash v1.1.0 // indirect
-	github.com/cespare/xxhash/v2 v2.2.0
+	github.com/cespare/xxhash/v2 v2.3.0
 	github.com/chzyer/readline v1.5.1 // indirect
-	github.com/cpuguy83/go-md2man/v2 v2.0.3 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.6 // indirect
 	github.com/dgraph-io/badger v1.6.2 // indirect
 	github.com/dgraph-io/badger/v2 v2.2007.4 // indirect
-	github.com/dgraph-io/ristretto v0.1.0 // indirect
+	github.com/dgraph-io/ristretto v0.2.0 // indirect
 	github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
-	github.com/dlclark/regexp2 v1.11.0 // indirect
+	github.com/dlclark/regexp2 v1.11.4 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-kit/kit v0.13.0 // indirect
 	github.com/go-logfmt/logfmt v0.6.0 // indirect
-	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-sql-driver/mysql v1.7.1 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
-	github.com/huandu/xstrings v1.3.3 // indirect
+	github.com/huandu/xstrings v1.5.0 // indirect
-	github.com/imdario/mergo v0.3.12 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
 	github.com/jackc/pgconn v1.14.3 // indirect
@@ -114,43 +116,43 @@ require (
 	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
 	github.com/jackc/pgtype v1.14.0 // indirect
 	github.com/jackc/pgx/v4 v4.18.3 // indirect
-	github.com/libdns/libdns v0.2.2 // indirect
+	github.com/libdns/libdns v0.2.3
 	github.com/manifoldco/promptui v0.9.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
-	github.com/miekg/dns v1.1.59 // indirect
+	github.com/miekg/dns v1.1.63 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/pires/go-proxyproto v0.7.0
+	github.com/pires/go-proxyproto v0.7.1-0.20240628150027-b718e7ce4964
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/client_model v0.5.0
 	github.com/prometheus/common v0.48.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
 	github.com/rs/xid v1.5.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/shopspring/decimal v1.2.0 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/slackhq/nebula v1.6.1 // indirect
-	github.com/spf13/cast v1.4.1 // indirect
+	github.com/spf13/cast v1.7.0 // indirect
 	github.com/stoewer/go-strcase v1.2.0 // indirect
 	github.com/urfave/cli v1.22.14 // indirect
 	go.etcd.io/bbolt v1.3.9 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.21.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.31.0 // indirect
-	go.opentelemetry.io/otel/metric v1.24.0 // indirect
+	go.opentelemetry.io/otel/metric v1.31.0 // indirect
-	go.opentelemetry.io/otel/trace v1.24.0
+	go.opentelemetry.io/otel/trace v1.31.0
-	go.opentelemetry.io/proto/otlp v1.0.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.step.sm/cli-utils v0.9.0 // indirect
 	go.step.sm/crypto v0.45.0
 	go.step.sm/linkedca v0.20.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/mod v0.17.0 // indirect
+	golang.org/x/mod v0.24.0 // indirect
-	golang.org/x/sys v0.20.0
+	golang.org/x/sys v0.31.0
-	golang.org/x/text v0.15.0 // indirect
+	golang.org/x/text v0.23.0 // indirect
-	golang.org/x/tools v0.21.0 // indirect
+	golang.org/x/tools v0.31.0 // indirect
-	google.golang.org/grpc v1.63.2 // indirect
+	google.golang.org/grpc v1.67.1 // indirect
-	google.golang.org/protobuf v1.34.1 // indirect
+	google.golang.org/protobuf v1.35.1 // indirect
 	howett.net/plist v1.0.0 // indirect
 )

go.sum

@@ -1,43 +1,60 @@
+cel.dev/expr v0.19.1 h1:NciYrtDRIR0lNCnH1LFJegdjspNx9fI59O7TWcua/W4=
+cel.dev/expr v0.19.1/go.mod h1:MrpN08Q+lEBs+bGYdLxxHkZoUSsCp0nSKTs0nTymJgw=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo=
 cloud.google.com/go v0.112.1 h1:uJSeirPke5UNZHIb4SxfZklVSiWWVqW4oXlETwZziwM=
 cloud.google.com/go/auth v0.4.1 h1:Z7YNIhlWRtrnKlZke7z3GMqzvuYzdc2z98F9D1NV5Hg=
 cloud.google.com/go/auth v0.4.1/go.mod h1:QVBuVEKpCn4Zp58hzRGvL0tjRGU0YqdRTdCHM1IHnro=
 cloud.google.com/go/auth/oauth2adapt v0.2.2 h1:+TTV8aXpjeChS9M+aTtN/TjdQnzJvmzKFt//oWu7HX4=
 cloud.google.com/go/auth/oauth2adapt v0.2.2/go.mod h1:wcYjgpZI9+Yu7LyYBg4pqSiaRkfEK3GQcpb7C/uyF1Q=
-cloud.google.com/go/compute v1.24.0 h1:phWcR2eWzRJaL/kOiJwfFsPs4BaKq1j6vnpZrc1YlVg=
+cloud.google.com/go/compute v1.23.3 h1:6sVlXXBmbd7jNX0Ipq0trII3e4n1/MsADLK6a+aiVlk=
-cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2QxYC4trgAKZc=
+cloud.google.com/go/compute/metadata v0.5.0 h1:Zr0eK8JbFv6+Wi4ilXAR8FJ3wyNdpxHKJNPos6LTZOY=
-cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
+cloud.google.com/go/compute/metadata v0.5.0/go.mod h1:aHnloV2TPI38yx4s9+wAZhHykWvVCfu7hQbF+9CWoiY=
 cloud.google.com/go/iam v1.1.8 h1:r7umDwhj+BQyz0ScZMp4QrGXjSTI3ZINnpgU2nlB/K0=
 cloud.google.com/go/iam v1.1.8/go.mod h1:GvE6lyMmfxXauzNq8NbgJbeVQNspG+tcdL/W8QO1+zE=
 cloud.google.com/go/kms v1.16.0 h1:1yZsRPhmargZOmY+fVAh8IKiR9HzCb0U1zsxb5g2nRY=
 cloud.google.com/go/kms v1.16.0/go.mod h1:olQUXy2Xud+1GzYfiBO9N0RhjsJk5IJLU6n/ethLXVc=
 cloud.google.com/go/longrunning v0.5.7 h1:WLbHekDbjK1fVFD3ibpFFVoyizlLRl73I7YKuAKilhU=
 cloud.google.com/go/longrunning v0.5.7/go.mod h1:8GClkudohy1Fxm3owmBGid8W0pSgodEMwEAztp38Xng=
+dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
+dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 h1:cTp8I5+VIoKjsnZuH8vjyaysT/ses3EvZeaV/1UkF2M=
 github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
 github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/BurntSushi/toml v1.4.0 h1:kuoIxZQy2WRRk1pttg9asf+WVv6tWQuBNVmK8+nqPr0=
+github.com/BurntSushi/toml v1.4.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/KimMachineGun/automemlimit v0.7.1 h1:QcG/0iCOLChjfUweIMC3YL5Xy9C3VBeNmCZHrZfJMBw=
+github.com/KimMachineGun/automemlimit v0.7.1/go.mod h1:QZxpHaGOQoYvFhv/r4u3U0JTC2ZcOwbSr11UZF46UBM=
 github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
 github.com/Masterminds/goutils v1.1.1/go.mod h1:8cTjp+g8YejhMuvIA5y2vz3BpJxksy863GQaJW2MFNU=
 github.com/Masterminds/semver/v3 v3.1.1/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
-github.com/Masterminds/semver/v3 v3.2.0 h1:3MEsd0SM6jqZojhjLWWeBY+Kcjy9i6MQAeY7YgDP83g=
+github.com/Masterminds/semver/v3 v3.3.0 h1:B8LGeaivUe71a5qox1ICM/JLl0NqZSW5CHyL+hmvYS0=
-github.com/Masterminds/semver/v3 v3.2.0/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
+github.com/Masterminds/semver/v3 v3.3.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
-github.com/Masterminds/sprig/v3 v3.2.3 h1:eL2fZNezLomi0uOLqjQoN6BfsDD+fyLtgbJMAj9n6YA=
+github.com/Masterminds/sprig/v3 v3.3.0 h1:mQh0Yrg1XPo6vjYXgtf5OtijNAKJRNcTdOOGZe3tPhs=
-github.com/Masterminds/sprig/v3 v3.2.3/go.mod h1:rXcFaZ2zZbLRJv/xSysmlgIM1u11eBaRMhvYXJNkGuM=
+github.com/Masterminds/sprig/v3 v3.3.0/go.mod h1:Zy1iXRYNqNLUolqCpL4uhk6SHUMAOSCzdgBfDb35Lz0=
 github.com/Microsoft/go-winio v0.6.0 h1:slsWYD/zyx7lCXoZVlvQrj0hPTM1HI4+v1sIda2yDvg=
 github.com/Microsoft/go-winio v0.6.0/go.mod h1:cTAf44im0RAYeL23bpB+fzCyDH2MJiz2BO69KH/soAE=
 github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/alecthomas/assert/v2 v2.6.0 h1:o3WJwILtexrEUk3cUVal3oiQY2tfgr/FHWiz/v2n4FU=
+github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
-github.com/alecthomas/assert/v2 v2.6.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
+github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/chroma/v2 v2.2.0/go.mod h1:vf4zrexSH54oEjJ7EdB65tGNHmH3pGZmVkgTP5RHvAs=
-github.com/alecthomas/chroma/v2 v2.13.0 h1:VP72+99Fb2zEcYM0MeaWJmV+xQvz5v5cxRHd+ooU1lI=
+github.com/alecthomas/chroma/v2 v2.15.0 h1:LxXTQHFoYrstG2nnV9y2X5O94sOBzf0CIUpSTbpxvMc=
-github.com/alecthomas/chroma/v2 v2.13.0/go.mod h1:BUGjjsD+ndS6eX37YgTchSEG+Jg9Jv1GiZs9sqPqztk=
+github.com/alecthomas/chroma/v2 v2.15.0/go.mod h1:gUhVLrPDXPtp/f+L1jo9xepo9gL4eLwRuGAunSZMkio=
 github.com/alecthomas/repr v0.0.0-20220113201626-b1b626ac65ae/go.mod h1:2kn6fqh/zIyPLmm3ugklbEi5hg5wS435eygvNfaDQL8=
 github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
 github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
 github.com/antlr4-go/antlr/v4 v4.13.0 h1:lxCg3LAv+EUK6t1i0y1V6/SLeUi0eKEKdhQAlS8TVTI=
 github.com/antlr4-go/antlr/v4 v4.13.0/go.mod h1:pfChB/xh/Unjila75QW7+VU4TSnWnnk9UTnmpPaOR2g=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
@@ -71,19 +88,21 @@ github.com/aws/aws-sdk-go-v2/service/sts v1.28.7 h1:et3Ta53gotFR4ERLXXHIHl/Uuk1q
 github.com/aws/aws-sdk-go-v2/service/sts v1.28.7/go.mod h1:FZf1/nKNEkHdGGJP/cI2MoIMquumuRK6ol3QQJNDxmw=
 github.com/aws/smithy-go v1.20.2 h1:tbp628ireGtzcHDDmLT/6ADHidqnwgF57XOXZe6tp4Q=
 github.com/aws/smithy-go v1.20.2/go.mod h1:krry+ya/rV9RDcV/Q16kpu6ypI4K2czasz0NC3qS14E=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/caddyserver/certmagic v0.21.3 h1:pqRRry3yuB4CWBVq9+cUqu+Y6E2z8TswbhNx1AZeYm0=
+github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
-github.com/caddyserver/certmagic v0.21.3/go.mod h1:Zq6pklO9nVRl3DIFUw9gVUfXKdpc/0qwTUAQMBlfgtI=
+github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
+github.com/caddyserver/certmagic v0.22.0 h1:hi2skv2jouUw9uQUEyYSTTmqPZPHgf61dOANSIVCLOw=
+github.com/caddyserver/certmagic v0.22.0/go.mod h1:Vc0msarAPhOagbDc/SU6M2zbzdwVuZ0lkTh2EqtH4vs=
 github.com/caddyserver/zerossl v0.1.3 h1:onS+pxp3M8HnHpN5MMbOMyNjmTheJyWRaZYwn+YTAyA=
 github.com/caddyserver/zerossl v0.1.3/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/XofZnrYwGqG4=
-github.com/cenkalti/backoff/v4 v4.2.1 h1:y4OZtCnogmCPw98Zjyt5a6+QwPLGkiQsYW5oUqylYbM=
+github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
-github.com/cenkalti/backoff/v4 v4.2.1/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
-github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/logex v1.2.1 h1:XHDu3E6q+gdHgsdTPH6ImJMIp436vR6MPtH8gP05QzM=
 github.com/chzyer/logex v1.2.1/go.mod h1:JLbx6lG2kDbNRFnfkgvh4eRJRPX1QCoOIWomwysCBrQ=
@@ -93,17 +112,21 @@ github.com/chzyer/readline v1.5.1/go.mod h1:Eh+b79XXUwfKfcPLepksvw2tcLE/Ct21YObk
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/chzyer/test v1.0.0 h1:p3BQDXSxOhOG0P9z6/hGnII4LGiEPOYBhs8asl/fC04=
 github.com/chzyer/test v1.0.0/go.mod h1:2JlltgoNkt4TW/z9V/IzDdFaMTM2JPIi26O1pF38GC8=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cloudflare/circl v1.6.0 h1:cr5JKic4HI+LkINy2lg3W2jF8sHCVTBncJr5gIIq7qk=
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@@ -454,20 +541,20 @@ go.opentelemetry.io/contrib/propagators/jaeger v1.17.0 h1:Zbpbmwav32Ea5jSotpmkWE
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@@ -478,12 +565,12 @@ go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
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@@ -495,10 +582,14 @@ go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
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@@ -508,44 +599,67 @@ golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c/go.mod h1:jdWPYTVW3xRLrWP
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@@ -554,7 +668,6 @@ golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7w
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+google.golang.org/grpc v1.67.1 h1:zWnc1Vrcno+lHZCOofnIMvycFcc0QRGIzm9dhnDX68E=
+google.golang.org/grpc v1.67.1/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFNg2AA=
+google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
+google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -629,16 +762,22 @@ gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntN
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/inconshreveable/log15.v2 v2.0.0-20180818164646-67afb5ed74ec/go.mod h1:aPpfJ7XW+gOuirDoZ8gHhLh3kZ1B08FtV2bbmy7Jv3s=
+gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
 gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
 gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+grpc.go4.org v0.0.0-20170609214715-11d0a25b4919/go.mod h1:77eQGdRu53HpSqPFJFmuJdjuHRquDANNeA4x7B8WQ9o=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
 howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=
+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

internal/ranges.go

@@ -0,0 +1,14 @@
+package internal
+
+// PrivateRangesCIDR returns a list of private CIDR range
+// strings, which can be used as a configuration shortcut.
+func PrivateRangesCIDR() []string {
+	return []string{
+		"192.168.0.0/16",
+		"172.16.0.0/12",
+		"10.0.0.0/8",
+		"127.0.0.1/8",
+		"fd00::/8",
+		"::1",
+	}
+}

listen.go

@@ -18,7 +18,11 @@ package caddy
 
 import (
 	"context"
+	"fmt"
 	"net"
+	"os"
+	"slices"
+	"strconv"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -26,15 +30,54 @@ import (
 	"go.uber.org/zap"
 )
 
-func reuseUnixSocket(network, addr string) (any, error) {
+func reuseUnixSocket(_, _ string) (any, error) {
 	return nil, nil
 }
 
 func listenReusable(ctx context.Context, lnKey string, network, address string, config net.ListenConfig) (any, error) {
-	switch network {
+	var socketFile *os.File
-	case "udp", "udp4", "udp6", "unixgram":
+
+	fd := slices.Contains([]string{"fd", "fdgram"}, network)
+	if fd {
+		socketFd, err := strconv.ParseUint(address, 0, strconv.IntSize)
+		if err != nil {
+			return nil, fmt.Errorf("invalid file descriptor: %v", err)
+		}
+
+		func() {
+			socketFilesMu.Lock()
+			defer socketFilesMu.Unlock()
+
+			socketFdWide := uintptr(socketFd)
+			var ok bool
+
+			socketFile, ok = socketFiles[socketFdWide]
+
+			if !ok {
+				socketFile = os.NewFile(socketFdWide, lnKey)
+				if socketFile != nil {
+					socketFiles[socketFdWide] = socketFile
+				}
+			}
+		}()
+
+		if socketFile == nil {
+			return nil, fmt.Errorf("invalid socket file descriptor: %d", socketFd)
+		}
+	}
+
+	datagram := slices.Contains([]string{"udp", "udp4", "udp6", "unixgram", "fdgram"}, network)
+	if datagram {
 		sharedPc, _, err := listenerPool.LoadOrNew(lnKey, func() (Destructor, error) {
-			pc, err := config.ListenPacket(ctx, network, address)
+			var (
+				pc  net.PacketConn
+				err error
+			)
+			if fd {
+				pc, err = net.FilePacketConn(socketFile)
+			} else {
+				pc, err = config.ListenPacket(ctx, network, address)
+			}
 			if err != nil {
 				return nil, err
 			}
@@ -44,10 +87,18 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 			return nil, err
 		}
 		return &fakeClosePacketConn{sharedPacketConn: sharedPc.(*sharedPacketConn)}, nil
+	}
 
-	default:
 	sharedLn, _, err := listenerPool.LoadOrNew(lnKey, func() (Destructor, error) {
-			ln, err := config.Listen(ctx, network, address)
+		var (
+			ln  net.Listener
+			err error
+		)
+		if fd {
+			ln, err = net.FileListener(socketFile)
+		} else {
+			ln, err = config.Listen(ctx, network, address)
+		}
 		if err != nil {
 			return nil, err
 		}
@@ -57,7 +108,6 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 		return nil, err
 	}
 	return &fakeCloseListener{sharedListener: sharedLn.(*sharedListener), keepAlivePeriod: config.KeepAlive}, nil
-	}
 }
 
 // fakeCloseListener is a private wrapper over a listener that
@@ -260,3 +310,9 @@ var (
 		Unwrap() net.PacketConn
 	}) = (*fakeClosePacketConn)(nil)
 )
+
+// socketFiles is a fd -> *os.File map used to make a FileListener/FilePacketConn from a socket file descriptor.
+var socketFiles = map[uintptr]*os.File{}
+
+// socketFilesMu synchronizes socketFiles insertions
+var socketFilesMu sync.Mutex

listen_unix.go

@@ -22,10 +22,14 @@ package caddy
 import (
 	"context"
 	"errors"
+	"fmt"
 	"io"
 	"io/fs"
 	"net"
 	"os"
+	"slices"
+	"strconv"
+	"sync"
 	"sync/atomic"
 	"syscall"
 
@@ -34,12 +38,9 @@ import (
 )
 
 // reuseUnixSocket copies and reuses the unix domain socket (UDS) if we already
-// have it open; if not, unlink it so we can have it. No-op if not a unix network.
+// have it open; if not, unlink it so we can have it.
+// No-op if not a unix network.
 func reuseUnixSocket(network, addr string) (any, error) {
-	if !IsUnixNetwork(network) {
-		return nil, nil
-	}
-
 	socketKey := listenerKey(network, addr)
 
 	socket, exists := unixSockets[socketKey]
@@ -71,7 +72,7 @@ func reuseUnixSocket(network, addr string) (any, error) {
 				return nil, err
 			}
 			atomic.AddInt32(unixSocket.count, 1)
-			unixSockets[socketKey] = &unixConn{pc.(*net.UnixConn), addr, socketKey, unixSocket.count}
+			unixSockets[socketKey] = &unixConn{pc.(*net.UnixConn), socketKey, unixSocket.count}
 		}
 
 		return unixSockets[socketKey], nil
@@ -89,7 +90,46 @@ func reuseUnixSocket(network, addr string) (any, error) {
 	return nil, nil
 }
 
+// listenReusable creates a new listener for the given network and address, and adds it to listenerPool.
 func listenReusable(ctx context.Context, lnKey string, network, address string, config net.ListenConfig) (any, error) {
+	// even though SO_REUSEPORT lets us bind the socket multiple times,
+	// we still put it in the listenerPool so we can count how many
+	// configs are using this socket; necessary to ensure we can know
+	// whether to enforce shutdown delays, for example (see #5393).
+	var (
+		ln         io.Closer
+		err        error
+		socketFile *os.File
+	)
+
+	fd := slices.Contains([]string{"fd", "fdgram"}, network)
+	if fd {
+		socketFd, err := strconv.ParseUint(address, 0, strconv.IntSize)
+		if err != nil {
+			return nil, fmt.Errorf("invalid file descriptor: %v", err)
+		}
+
+		func() {
+			socketFilesMu.Lock()
+			defer socketFilesMu.Unlock()
+
+			socketFdWide := uintptr(socketFd)
+			var ok bool
+
+			socketFile, ok = socketFiles[socketFdWide]
+
+			if !ok {
+				socketFile = os.NewFile(socketFdWide, lnKey)
+				if socketFile != nil {
+					socketFiles[socketFdWide] = socketFile
+				}
+			}
+		}()
+
+		if socketFile == nil {
+			return nil, fmt.Errorf("invalid socket file descriptor: %d", socketFd)
+		}
+	} else {
 		// wrap any Control function set by the user so we can also add our reusePort control without clobbering theirs
 		oldControl := config.Control
 		config.Control = func(network, address string, c syscall.RawConn) error {
@@ -100,45 +140,57 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 			}
 			return reusePort(network, address, c)
 		}
+	}
 
-	// even though SO_REUSEPORT lets us bind the socket multiple times,
+	datagram := slices.Contains([]string{"udp", "udp4", "udp6", "unixgram", "fdgram"}, network)
-	// we still put it in the listenerPool so we can count how many
+	if datagram {
-	// configs are using this socket; necessary to ensure we can know
+		if fd {
-	// whether to enforce shutdown delays, for example (see #5393).
+			ln, err = net.FilePacketConn(socketFile)
-	var ln io.Closer
+		} else {
-	var err error
-	switch network {
-	case "udp", "udp4", "udp6", "unixgram":
 			ln, err = config.ListenPacket(ctx, network, address)
-	default:
+		}
+	} else {
+		if fd {
+			ln, err = net.FileListener(socketFile)
+		} else {
 			ln, err = config.Listen(ctx, network, address)
 		}
+	}
+
 	if err == nil {
 		listenerPool.LoadOrStore(lnKey, nil)
 	}
 
+	if datagram {
+		if !fd {
+			// TODO: Not 100% sure this is necessary, but we do this for net.UnixListener, so...
+			if unix, ok := ln.(*net.UnixConn); ok {
+				one := int32(1)
+				ln = &unixConn{unix, lnKey, &one}
+				unixSockets[lnKey] = ln.(*unixConn)
+			}
+		}
+		// lightly wrap the connection so that when it is closed,
+		// we can decrement the usage pool counter
+		if specificLn, ok := ln.(net.PacketConn); ok {
+			ln = deletePacketConn{specificLn, lnKey}
+		}
+	} else {
+		if !fd {
 			// if new listener is a unix socket, make sure we can reuse it later
 			// (we do our own "unlink on close" -- not required, but more tidy)
-	one := int32(1)
 			if unix, ok := ln.(*net.UnixListener); ok {
 				unix.SetUnlinkOnClose(false)
+				one := int32(1)
 				ln = &unixListener{unix, lnKey, &one}
 				unixSockets[lnKey] = ln.(*unixListener)
 			}
-
-	// TODO: Not 100% sure this is necessary, but we do this for net.UnixListener in listen_unix.go, so...
-	if unix, ok := ln.(*net.UnixConn); ok {
-		ln = &unixConn{unix, address, lnKey, &one}
-		unixSockets[lnKey] = ln.(*unixConn)
 		}
-
 		// lightly wrap the listener so that when it is closed,
 		// we can decrement the usage pool counter
-	switch specificLn := ln.(type) {
+		if specificLn, ok := ln.(net.Listener); ok {
-	case net.Listener:
+			ln = deleteListener{specificLn, lnKey}
-		return deleteListener{specificLn, lnKey}, err
+		}
-	case net.PacketConn:
-		return deletePacketConn{specificLn, lnKey}, err
 	}
 
 	// other types, I guess we just return them directly
@@ -170,12 +222,18 @@ type unixListener struct {
 func (uln *unixListener) Close() error {
 	newCount := atomic.AddInt32(uln.count, -1)
 	if newCount == 0 {
+		file, err := uln.File()
+		var name string
+		if err == nil {
+			name = file.Name()
+		}
 		defer func() {
-			addr := uln.Addr().String()
 			unixSocketsMu.Lock()
 			delete(unixSockets, uln.mapKey)
 			unixSocketsMu.Unlock()
-			_ = syscall.Unlink(addr)
+			if err == nil {
+				_ = syscall.Unlink(name)
+			}
 		}()
 	}
 	return uln.UnixListener.Close()
@@ -183,7 +241,6 @@ func (uln *unixListener) Close() error {
 
 type unixConn struct {
 	*net.UnixConn
-	filename string
 	mapKey string
 	count  *int32 // accessed atomically
 }
@@ -191,11 +248,18 @@ type unixConn struct {
 func (uc *unixConn) Close() error {
 	newCount := atomic.AddInt32(uc.count, -1)
 	if newCount == 0 {
+		file, err := uc.File()
+		var name string
+		if err == nil {
+			name = file.Name()
+		}
 		defer func() {
 			unixSocketsMu.Lock()
 			delete(unixSockets, uc.mapKey)
 			unixSocketsMu.Unlock()
-			_ = syscall.Unlink(uc.filename)
+			if err == nil {
+				_ = syscall.Unlink(name)
+			}
 		}()
 	}
 	return uc.UnixConn.Close()
@@ -211,6 +275,12 @@ var unixSockets = make(map[string]interface {
 	File() (*os.File, error)
 })
 
+// socketFiles is a fd -> *os.File map used to make a FileListener/FilePacketConn from a socket file descriptor.
+var socketFiles = map[uintptr]*os.File{}
+
+// socketFilesMu synchronizes socketFiles insertions
+var socketFilesMu sync.Mutex
+
 // deleteListener is a type that simply deletes itself
 // from the listenerPool when it closes. It is used
 // solely for the purpose of reference counting (i.e.

listeners.go

@@ -31,6 +31,7 @@ import (
 
 	"github.com/quic-go/quic-go"
 	"github.com/quic-go/quic-go/http3"
+	"github.com/quic-go/quic-go/qlog"
 	"go.uber.org/zap"
 	"golang.org/x/time/rate"
 
@@ -57,11 +58,9 @@ type NetworkAddress struct {
 	EndPort   uint
 }
 
-// ListenAll calls Listen() for all addresses represented by this struct, i.e. all ports in the range.
+// ListenAll calls Listen for all addresses represented by this struct, i.e. all ports in the range.
 // (If the address doesn't use ports or has 1 port only, then only 1 listener will be created.)
 // It returns an error if any listener failed to bind, and closes any listeners opened up to that point.
-//
-// TODO: Experimental API: subject to change or removal.
 func (na NetworkAddress) ListenAll(ctx context.Context, config net.ListenConfig) ([]any, error) {
 	var listeners []any
 	var err error
@@ -107,7 +106,8 @@ func (na NetworkAddress) ListenAll(ctx context.Context, config net.ListenConfig)
 // portOffset to the start port. (For network types that do not use ports, the
 // portOffset is ignored.)
 //
-// The provided ListenConfig is used to create the listener. Its Control function,
+// First Listen checks if a plugin can provide a listener from this address. Otherwise,
+// the provided ListenConfig is used to create the listener. Its Control function,
 // if set, may be wrapped by an internally-used Control function. The provided
 // context may be used to cancel long operations early. The context is not used
 // to close the listener after it has been created.
@@ -130,8 +130,8 @@ func (na NetworkAddress) ListenAll(ctx context.Context, config net.ListenConfig)
 // Unix sockets will be unlinked before being created, to ensure we can bind to
 // it even if the previous program using it exited uncleanly; it will also be
 // unlinked upon a graceful exit (or when a new config does not use that socket).
-//
+// Listen synchronizes binds to unix domain sockets to avoid race conditions
-// TODO: Experimental API: subject to change or removal.
+// while an existing socket is unlinked.
 func (na NetworkAddress) Listen(ctx context.Context, portOffset uint, config net.ListenConfig) (any, error) {
 	if na.IsUnixNetwork() {
 		unixSocketsMu.Lock()
@@ -139,7 +139,7 @@ func (na NetworkAddress) Listen(ctx context.Context, portOffset uint, config net
 	}
 
 	// check to see if plugin provides listener
-	if ln, err := getListenerFromPlugin(ctx, na.Network, na.JoinHostPort(portOffset), config); ln != nil || err != nil {
+	if ln, err := getListenerFromPlugin(ctx, na.Network, na.Host, na.port(), portOffset, config); ln != nil || err != nil {
 		return ln, err
 	}
 
@@ -153,50 +153,49 @@ func (na NetworkAddress) listen(ctx context.Context, portOffset uint, config net
 		err          error
 		address      string
 		unixFileMode fs.FileMode
-		isAbstractUnixSocket bool
 	)
 
 	// split unix socket addr early so lnKey
 	// is independent of permissions bits
 	if na.IsUnixNetwork() {
-		var err error
 		address, unixFileMode, err = internal.SplitUnixSocketPermissionsBits(na.Host)
 		if err != nil {
 			return nil, err
 		}
-		isAbstractUnixSocket = strings.HasPrefix(address, "@")
+	} else if na.IsFdNetwork() {
+		address = na.Host
 	} else {
 		address = na.JoinHostPort(portOffset)
 	}
 
-	// if this is a unix socket, see if we already have it open,
-	// force socket permissions on it and return early
-	if socket, err := reuseUnixSocket(na.Network, address); socket != nil || err != nil {
-		if !isAbstractUnixSocket {
-			if err := os.Chmod(address, unixFileMode); err != nil {
-				return nil, fmt.Errorf("unable to set permissions (%s) on %s: %v", unixFileMode, address, err)
-			}
-		}
-		return socket, err
-	}
-
-	lnKey := listenerKey(na.Network, address)
-
 	if strings.HasPrefix(na.Network, "ip") {
 		ln, err = config.ListenPacket(ctx, na.Network, address)
 	} else {
+		if na.IsUnixNetwork() {
+			// if this is a unix socket, see if we already have it open
+			ln, err = reuseUnixSocket(na.Network, address)
+		}
+
+		if ln == nil && err == nil {
+			// otherwise, create a new listener
+			lnKey := listenerKey(na.Network, address)
 			ln, err = listenReusable(ctx, lnKey, na.Network, address, config)
 		}
+	}
+
 	if err != nil {
 		return nil, err
 	}
+
 	if ln == nil {
 		return nil, fmt.Errorf("unsupported network type: %s", na.Network)
 	}
 
 	if IsUnixNetwork(na.Network) {
+		isAbstractUnixSocket := strings.HasPrefix(address, "@")
 		if !isAbstractUnixSocket {
-			if err := os.Chmod(address, unixFileMode); err != nil {
+			err = os.Chmod(address, unixFileMode)
+			if err != nil {
 				return nil, fmt.Errorf("unable to set permissions (%s) on %s: %v", unixFileMode, address, err)
 			}
 		}
@@ -211,18 +210,22 @@ func (na NetworkAddress) IsUnixNetwork() bool {
 	return IsUnixNetwork(na.Network)
 }
 
+// IsUnixNetwork returns true if na.Network is
+// fd or fdgram.
+func (na NetworkAddress) IsFdNetwork() bool {
+	return IsFdNetwork(na.Network)
+}
+
 // JoinHostPort is like net.JoinHostPort, but where the port
 // is StartPort + offset.
 func (na NetworkAddress) JoinHostPort(offset uint) string {
-	if na.IsUnixNetwork() {
+	if na.IsUnixNetwork() || na.IsFdNetwork() {
 		return na.Host
 	}
-	return net.JoinHostPort(na.Host, strconv.Itoa(int(na.StartPort+offset)))
+	return net.JoinHostPort(na.Host, strconv.FormatUint(uint64(na.StartPort+offset), 10))
 }
 
 // Expand returns one NetworkAddress for each port in the port range.
-//
-// This is EXPERIMENTAL and subject to change or removal.
 func (na NetworkAddress) Expand() []NetworkAddress {
 	size := na.PortRangeSize()
 	addrs := make([]NetworkAddress, size)
@@ -253,7 +256,7 @@ func (na NetworkAddress) PortRangeSize() uint {
 }
 
 func (na NetworkAddress) isLoopback() bool {
-	if na.IsUnixNetwork() {
+	if na.IsUnixNetwork() || na.IsFdNetwork() {
 		return true
 	}
 	if na.Host == "localhost" {
@@ -297,6 +300,11 @@ func IsUnixNetwork(netw string) bool {
 	return strings.HasPrefix(netw, "unix")
 }
 
+// IsFdNetwork returns true if the netw is a fd network.
+func IsFdNetwork(netw string) bool {
+	return strings.HasPrefix(netw, "fd")
+}
+
 // ParseNetworkAddress parses addr into its individual
 // components. The input string is expected to be of
 // the form "network/host:port-range" where any part is
@@ -327,6 +335,12 @@ func ParseNetworkAddressWithDefaults(addr, defaultNetwork string, defaultPort ui
 			Host:    host,
 		}, err
 	}
+	if IsFdNetwork(network) {
+		return NetworkAddress{
+			Network: network,
+			Host:    host,
+		}, nil
+	}
 	var start, end uint64
 	if port == "" {
 		start = uint64(defaultPort)
@@ -366,25 +380,28 @@ func SplitNetworkAddress(a string) (network, host, port string, err error) {
 	if slashFound {
 		network = strings.ToLower(strings.TrimSpace(beforeSlash))
 		a = afterSlash
-	}
+		if IsUnixNetwork(network) || IsFdNetwork(network) {
-	if IsUnixNetwork(network) {
 			host = a
 			return
 		}
-	host, port, err = net.SplitHostPort(a)
-	if err == nil || a == "" {
-		return
 	}
+
+	host, port, err = net.SplitHostPort(a)
+	firstErr := err
+
+	if err != nil {
 		// in general, if there was an error, it was likely "missing port",
-	// so try adding a bogus port to take advantage of standard library's
+		// so try removing square brackets around an IPv6 host, adding a bogus
-	// robust parser, then strip the artificial port before returning
+		// port to take advantage of standard library's robust parser, then
-	// (don't overwrite original error though; might still be relevant)
+		// strip the artificial port.
-	var err2 error
+		host, _, err = net.SplitHostPort(net.JoinHostPort(strings.Trim(a, "[]"), "0"))
-	host, port, err2 = net.SplitHostPort(a + ":0")
-	if err2 == nil {
-		err = nil
 		port = ""
 	}
+
+	if err != nil {
+		err = errors.Join(firstErr, err)
+	}
+
 	return
 }
 
@@ -398,7 +415,7 @@ func JoinNetworkAddress(network, host, port string) string {
 	if network != "" {
 		a = network + "/"
 	}
-	if (host != "" && port == "") || IsUnixNetwork(network) {
+	if (host != "" && port == "") || IsUnixNetwork(network) || IsFdNetwork(network) {
 		a += host
 	} else if port != "" {
 		a += net.JoinHostPort(host, port)
@@ -406,9 +423,11 @@ func JoinNetworkAddress(network, host, port string) string {
 	return a
 }
 
-// ListenQUIC returns a quic.EarlyListener suitable for use in a Caddy module.
+// ListenQUIC returns a http3.QUICEarlyListener suitable for use in a Caddy module.
-// The network will be transformed into a QUIC-compatible type (if unix, then
+//
-// unixgram will be used; otherwise, udp will be used).
+// The network will be transformed into a QUIC-compatible type if the same address can be used with
+// different networks. Currently this just means that for tcp, udp will be used with the same
+// address instead.
 //
 // NOTE: This API is EXPERIMENTAL and may be changed or removed.
 func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config net.ListenConfig, tlsConf *tls.Config) (http3.QUICEarlyListener, error) {
@@ -443,7 +462,13 @@ func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config
 			Conn:                h3ln,
 			VerifySourceAddress: func(addr net.Addr) bool { return !limiter.Allow() },
 		}
-		earlyLn, err := tr.ListenEarly(http3.ConfigureTLSConfig(quicTlsConfig), &quic.Config{Allow0RTT: true})
+		earlyLn, err := tr.ListenEarly(
+			http3.ConfigureTLSConfig(quicTlsConfig),
+			&quic.Config{
+				Allow0RTT: true,
+				Tracer:    qlog.DefaultConnectionTracer,
+			},
+		)
 		if err != nil {
 			return nil, err
 		}
@@ -616,7 +641,8 @@ func RegisterNetwork(network string, getListener ListenerFunc) {
 	if network == "tcp" || network == "tcp4" || network == "tcp6" ||
 		network == "udp" || network == "udp4" || network == "udp6" ||
 		network == "unix" || network == "unixpacket" || network == "unixgram" ||
-		strings.HasPrefix("ip:", network) || strings.HasPrefix("ip4:", network) || strings.HasPrefix("ip6:", network) {
+		strings.HasPrefix("ip:", network) || strings.HasPrefix("ip4:", network) || strings.HasPrefix("ip6:", network) ||
+		network == "fd" || network == "fdgram" {
 		panic("network type " + network + " is reserved")
 	}
 
@@ -632,11 +658,11 @@ var unixSocketsMu sync.Mutex
 // getListenerFromPlugin returns a listener on the given network and address
 // if a plugin has registered the network name. It may return (nil, nil) if
 // no plugin can provide a listener.
-func getListenerFromPlugin(ctx context.Context, network, addr string, config net.ListenConfig) (any, error) {
+func getListenerFromPlugin(ctx context.Context, network, host, port string, portOffset uint, config net.ListenConfig) (any, error) {
 	// get listener from plugin if network type is registered
 	if getListener, ok := networkTypes[network]; ok {
 		Log().Debug("getting listener from plugin", zap.String("network", network))
-		return getListener(ctx, network, addr, config)
+		return getListener(ctx, network, host, port, portOffset, config)
 	}
 
 	return nil, nil
@@ -650,7 +676,7 @@ func listenerKey(network, addr string) string {
 // The listeners must be capable of overlapping: with Caddy, new configs are loaded
 // before old ones are unloaded, so listeners may overlap briefly if the configs
 // both need the same listener. EXPERIMENTAL and subject to change.
-type ListenerFunc func(ctx context.Context, network, addr string, cfg net.ListenConfig) (any, error)
+type ListenerFunc func(ctx context.Context, network, host, portRange string, portOffset uint, cfg net.ListenConfig) (any, error)
 
 var networkTypes = map[string]ListenerFunc{}
 

listeners_test.go

@@ -31,7 +31,7 @@ func TestSplitNetworkAddress(t *testing.T) {
 	}{
 		{
 			input:     "",
-			expectErr: true,
+			expectHost: "",
 		},
 		{
 			input:      "foo",
@@ -42,7 +42,7 @@ func TestSplitNetworkAddress(t *testing.T) {
 		},
 		{
 			input:     "::",
-			expectErr: true,
+			expectHost: "::",
 		},
 		{
 			input:      "[::]",
@@ -77,7 +77,7 @@ func TestSplitNetworkAddress(t *testing.T) {
 		{
 			input:         "udp/",
 			expectNetwork: "udp",
-			expectErr:     true,
+			expectHost:    "",
 		},
 		{
 			input:         "unix//foo/bar",
@@ -185,7 +185,8 @@ func TestParseNetworkAddress(t *testing.T) {
 	}{
 		{
 			input:     "",
-			expectErr: true,
+			expectAddr: NetworkAddress{
+			},
 		},
 		{
 			input:          ":",
@@ -311,7 +312,8 @@ func TestParseNetworkAddressWithDefaults(t *testing.T) {
 	}{
 		{
 			input:     "",
-			expectErr: true,
+			expectAddr: NetworkAddress{
+			},
 		},
 		{
 			input:          ":",

metrics.go

@@ -4,30 +4,33 @@ import (
 	"net/http"
 
 	"github.com/prometheus/client_golang/prometheus"
-	"github.com/prometheus/client_golang/prometheus/collectors"
-	"github.com/prometheus/client_golang/prometheus/promauto"
 
 	"github.com/caddyserver/caddy/v2/internal/metrics"
 )
 
 // define and register the metrics used in this package.
 func init() {
-	prometheus.MustRegister(collectors.NewBuildInfoCollector())
-
 	const ns, sub = "caddy", "admin"
-
+	adminMetrics.requestCount = prometheus.NewCounterVec(prometheus.CounterOpts{
-	adminMetrics.requestCount = promauto.NewCounterVec(prometheus.CounterOpts{
 		Namespace: ns,
 		Subsystem: sub,
 		Name:      "http_requests_total",
 		Help:      "Counter of requests made to the Admin API's HTTP endpoints.",
 	}, []string{"handler", "path", "code", "method"})
-	adminMetrics.requestErrors = promauto.NewCounterVec(prometheus.CounterOpts{
+	adminMetrics.requestErrors = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Namespace: ns,
 		Subsystem: sub,
 		Name:      "http_request_errors_total",
 		Help:      "Number of requests resulting in middleware errors.",
 	}, []string{"handler", "path", "method"})
+	globalMetrics.configSuccess = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "caddy_config_last_reload_successful",
+		Help: "Whether the last configuration reload attempt was successful.",
+	})
+	globalMetrics.configSuccessTime = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: "caddy_config_last_reload_success_timestamp_seconds",
+		Help: "Timestamp of the last successful configuration reload.",
+	})
 }
 
 // adminMetrics is a collection of metrics that can be tracked for the admin API.
@@ -36,6 +39,12 @@ var adminMetrics = struct {
 	requestErrors *prometheus.CounterVec
 }{}
 
+// globalMetrics is a collection of metrics that can be tracked for Caddy global state
+var globalMetrics = struct {
+	configSuccess     prometheus.Gauge
+	configSuccessTime prometheus.Gauge
+}{}
+
 // Similar to promhttp.InstrumentHandlerCounter, but upper-cases method names
 // instead of lower-casing them.
 //

modules/caddyevents/app.go

@@ -124,7 +124,9 @@ func (app *App) Provision(ctx caddy.Context) error {
 	app.subscriptions = make(map[string]map[caddy.ModuleID][]Handler)
 
 	for _, sub := range app.Subscriptions {
-		if sub.HandlersRaw != nil {
+		if sub.HandlersRaw == nil {
+			continue
+		}
 		handlersIface, err := ctx.LoadModule(sub, "HandlersRaw")
 		if err != nil {
 			return fmt.Errorf("loading event subscriber modules: %v", err)
@@ -137,7 +139,6 @@ func (app *App) Provision(ctx caddy.Context) error {
 			return fmt.Errorf("no handlers defined")
 		}
 	}
-	}
 
 	return nil
 }
@@ -261,7 +262,7 @@ func (app *App) Emit(ctx caddy.Context, eventName string, data map[string]any) E
 		return nil, false
 	})
 
-	logger = logger.With(zap.Any("data", e.Data))
+	logger = logger.WithLazy(zap.Any("data", e.Data))
 
 	logger.Debug("event")
 

modules/caddyhttp/app.go

@@ -15,9 +15,11 @@
 package caddyhttp
 
 import (
+	"cmp"
 	"context"
 	"crypto/tls"
 	"fmt"
+	"maps"
 	"net"
 	"net/http"
 	"strconv"
@@ -141,6 +143,10 @@ type App struct {
 	// affect functionality.
 	Servers map[string]*Server `json:"servers,omitempty"`
 
+	// If set, metrics observations will be enabled.
+	// This setting is EXPERIMENTAL and subject to change.
+	Metrics *Metrics `json:"metrics,omitempty"`
+
 	ctx    caddy.Context
 	logger *zap.Logger
 	tlsApp *caddytls.TLS
@@ -183,6 +189,10 @@ func (app *App) Provision(ctx caddy.Context) error {
 		return err
 	}
 
+	if app.Metrics != nil {
+		app.Metrics.init = sync.Once{}
+		app.Metrics.httpMetrics = &httpMetrics{}
+	}
 	// prepare each server
 	oldContext := ctx.Context
 	for srvName, srv := range app.Servers {
@@ -195,6 +205,15 @@ func (app *App) Provision(ctx caddy.Context) error {
 		srv.errorLogger = app.logger.Named("log.error")
 		srv.shutdownAtMu = new(sync.RWMutex)
 
+		if srv.Metrics != nil {
+			srv.logger.Warn("per-server 'metrics' is deprecated; use 'metrics' in the root 'http' app instead")
+			app.Metrics = cmp.Or(app.Metrics, &Metrics{
+				init:        sync.Once{},
+				httpMetrics: &httpMetrics{},
+			})
+			app.Metrics.PerHost = app.Metrics.PerHost || srv.Metrics.PerHost
+		}
+
 		// only enable access logs if configured
 		if srv.Logs != nil {
 			srv.accessLogger = app.logger.Named("log.access")
@@ -203,17 +222,75 @@ func (app *App) Provision(ctx caddy.Context) error {
 			}
 		}
 
-		// the Go standard library does not let us serve only HTTP/2 using
-		// http.Server; we would probably need to write our own server
-		if !srv.protocol("h1") && (srv.protocol("h2") || srv.protocol("h2c")) {
-			return fmt.Errorf("server %s: cannot enable HTTP/2 or H2C without enabling HTTP/1.1; add h1 to protocols or remove h2/h2c", srvName)
-		}
-
 		// if no protocols configured explicitly, enable all except h2c
 		if len(srv.Protocols) == 0 {
 			srv.Protocols = []string{"h1", "h2", "h3"}
 		}
 
+		srvProtocolsUnique := map[string]struct{}{}
+		for _, srvProtocol := range srv.Protocols {
+			srvProtocolsUnique[srvProtocol] = struct{}{}
+		}
+		_, h1ok := srvProtocolsUnique["h1"]
+		_, h2ok := srvProtocolsUnique["h2"]
+		_, h2cok := srvProtocolsUnique["h2c"]
+
+		// the Go standard library does not let us serve only HTTP/2 using
+		// http.Server; we would probably need to write our own server
+		if !h1ok && (h2ok || h2cok) {
+			return fmt.Errorf("server %s: cannot enable HTTP/2 or H2C without enabling HTTP/1.1; add h1 to protocols or remove h2/h2c", srvName)
+		}
+
+		if srv.ListenProtocols != nil {
+			if len(srv.ListenProtocols) != len(srv.Listen) {
+				return fmt.Errorf("server %s: listener protocols count does not match address count: %d != %d",
+					srvName, len(srv.ListenProtocols), len(srv.Listen))
+			}
+
+			for i, lnProtocols := range srv.ListenProtocols {
+				if lnProtocols != nil {
+					// populate empty listen protocols with server protocols
+					lnProtocolsDefault := false
+					var lnProtocolsInclude []string
+					srvProtocolsInclude := maps.Clone(srvProtocolsUnique)
+
+					// keep existing listener protocols unless they are empty
+					for _, lnProtocol := range lnProtocols {
+						if lnProtocol == "" {
+							lnProtocolsDefault = true
+						} else {
+							lnProtocolsInclude = append(lnProtocolsInclude, lnProtocol)
+							delete(srvProtocolsInclude, lnProtocol)
+						}
+					}
+
+					// append server protocols to listener protocols if any listener protocols were empty
+					if lnProtocolsDefault {
+						for _, srvProtocol := range srv.Protocols {
+							if _, ok := srvProtocolsInclude[srvProtocol]; ok {
+								lnProtocolsInclude = append(lnProtocolsInclude, srvProtocol)
+							}
+						}
+					}
+
+					lnProtocolsIncludeUnique := map[string]struct{}{}
+					for _, lnProtocol := range lnProtocolsInclude {
+						lnProtocolsIncludeUnique[lnProtocol] = struct{}{}
+					}
+					_, h1ok := lnProtocolsIncludeUnique["h1"]
+					_, h2ok := lnProtocolsIncludeUnique["h2"]
+					_, h2cok := lnProtocolsIncludeUnique["h2c"]
+
+					// check if any listener protocols contain h2 or h2c without h1
+					if !h1ok && (h2ok || h2cok) {
+						return fmt.Errorf("server %s, listener %d: cannot enable HTTP/2 or H2C without enabling HTTP/1.1; add h1 to protocols or remove h2/h2c", srvName, i)
+					}
+
+					srv.ListenProtocols[i] = lnProtocolsInclude
+				}
+			}
+		}
+
 		// if not explicitly configured by the user, disallow TLS
 		// client auth bypass (domain fronting) which could
 		// otherwise be exploited by sending an unprotected SNI
@@ -283,12 +360,11 @@ func (app *App) Provision(ctx caddy.Context) error {
 				srv.listenerWrappers = append([]caddy.ListenerWrapper{new(tlsPlaceholderWrapper)}, srv.listenerWrappers...)
 			}
 		}
-
 		// pre-compile the primary handler chain, and be sure to wrap it in our
 		// route handler so that important security checks are done, etc.
 		primaryRoute := emptyHandler
 		if srv.Routes != nil {
-			err := srv.Routes.ProvisionHandlers(ctx, srv.Metrics)
+			err := srv.Routes.ProvisionHandlers(ctx, app.Metrics)
 			if err != nil {
 				return fmt.Errorf("server %s: setting up route handlers: %v", srvName, err)
 			}
@@ -307,7 +383,7 @@ func (app *App) Provision(ctx caddy.Context) error {
 
 		// provision the named routes (they get compiled at runtime)
 		for name, route := range srv.NamedRoutes {
-			err := route.Provision(ctx, srv.Metrics)
+			err := route.Provision(ctx, app.Metrics)
 			if err != nil {
 				return fmt.Errorf("server %s: setting up named route '%s' handlers: %v", name, srvName, err)
 			}
@@ -325,6 +401,9 @@ func (app *App) Provision(ctx caddy.Context) error {
 		if srv.IdleTimeout == 0 {
 			srv.IdleTimeout = defaultIdleTimeout
 		}
+		if srv.ReadHeaderTimeout == 0 {
+			srv.ReadHeaderTimeout = defaultReadHeaderTimeout // see #6663
+		}
 	}
 	ctx.Context = oldContext
 	return nil
@@ -344,7 +423,7 @@ func (app *App) Validate() error {
 			// check that every address in the port range is unique to this server;
 			// we do not use <= here because PortRangeSize() adds 1 to EndPort for us
 			for i := uint(0); i < listenAddr.PortRangeSize(); i++ {
-				addr := caddy.JoinNetworkAddress(listenAddr.Network, listenAddr.Host, strconv.Itoa(int(listenAddr.StartPort+i)))
+				addr := caddy.JoinNetworkAddress(listenAddr.Network, listenAddr.Host, strconv.FormatUint(uint64(listenAddr.StartPort+i), 10))
 				if sn, ok := lnAddrs[addr]; ok {
 					return fmt.Errorf("server %s: listener address repeated: %s (already claimed by server '%s')", srvName, addr, sn)
 				}
@@ -422,21 +501,44 @@ func (app *App) Start() error {
 			srv.server.Handler = h2c.NewHandler(srv, h2server)
 		}
 
-		for _, lnAddr := range srv.Listen {
+		for lnIndex, lnAddr := range srv.Listen {
 			listenAddr, err := caddy.ParseNetworkAddress(lnAddr)
 			if err != nil {
 				return fmt.Errorf("%s: parsing listen address '%s': %v", srvName, lnAddr, err)
 			}
+
 			srv.addresses = append(srv.addresses, listenAddr)
 
+			protocols := srv.Protocols
+			if srv.ListenProtocols != nil && srv.ListenProtocols[lnIndex] != nil {
+				protocols = srv.ListenProtocols[lnIndex]
+			}
+
+			protocolsUnique := map[string]struct{}{}
+			for _, protocol := range protocols {
+				protocolsUnique[protocol] = struct{}{}
+			}
+			_, h1ok := protocolsUnique["h1"]
+			_, h2ok := protocolsUnique["h2"]
+			_, h2cok := protocolsUnique["h2c"]
+			_, h3ok := protocolsUnique["h3"]
+
 			for portOffset := uint(0); portOffset < listenAddr.PortRangeSize(); portOffset++ {
-				// create the listener for this socket
 				hostport := listenAddr.JoinHostPort(portOffset)
+
+				// enable TLS if there is a policy and if this is not the HTTP port
+				useTLS := len(srv.TLSConnPolicies) > 0 && int(listenAddr.StartPort+portOffset) != app.httpPort()
+
+				if h1ok || h2ok && useTLS || h2cok {
+					// create the listener for this socket
 					lnAny, err := listenAddr.Listen(app.ctx, portOffset, net.ListenConfig{KeepAlive: time.Duration(srv.KeepAliveInterval)})
 					if err != nil {
 						return fmt.Errorf("listening on %s: %v", listenAddr.At(portOffset), err)
 					}
-				ln := lnAny.(net.Listener)
+					ln, ok := lnAny.(net.Listener)
+					if !ok {
+						return fmt.Errorf("network '%s' cannot handle HTTP/1 or HTTP/2 connections", listenAddr.Network)
+					}
 
 					// wrap listener before TLS (up to the TLS placeholder wrapper)
 					var lnWrapperIdx int
@@ -448,36 +550,9 @@ func (app *App) Start() error {
 						ln = lnWrapper.WrapListener(ln)
 					}
 
-				// enable TLS if there is a policy and if this is not the HTTP port
-				useTLS := len(srv.TLSConnPolicies) > 0 && int(listenAddr.StartPort+portOffset) != app.httpPort()
 					if useTLS {
 						// create TLS listener - this enables and terminates TLS
 						ln = tls.NewListener(ln, tlsCfg)
-
-					// enable HTTP/3 if configured
-					if srv.protocol("h3") {
-						// Can't serve HTTP/3 on the same socket as HTTP/1 and 2 because it uses
-						// a different transport mechanism... which is fine, but the OS doesn't
-						// differentiate between a SOCK_STREAM file and a SOCK_DGRAM file; they
-						// are still one file on the system. So even though "unixpacket" and
-						// "unixgram" are different network types just as "tcp" and "udp" are,
-						// the OS will not let us use the same file as both STREAM and DGRAM.
-						if len(srv.Protocols) > 1 && listenAddr.IsUnixNetwork() {
-							app.logger.Warn("HTTP/3 disabled because Unix can't multiplex STREAM and DGRAM on same socket",
-								zap.String("file", hostport))
-							for i := range srv.Protocols {
-								if srv.Protocols[i] == "h3" {
-									srv.Protocols = append(srv.Protocols[:i], srv.Protocols[i+1:]...)
-									break
-								}
-							}
-						} else {
-							app.logger.Info("enabling HTTP/3 listener", zap.String("addr", hostport))
-							if err := srv.serveHTTP3(listenAddr.At(portOffset), tlsCfg); err != nil {
-								return err
-							}
-						}
-					}
 					}
 
 					// finish wrapping listener where we left off before TLS
@@ -486,7 +561,7 @@ func (app *App) Start() error {
 					}
 
 					// handle http2 if use tls listener wrapper
-				if useTLS {
+					if h2ok {
 						http2lnWrapper := &http2Listener{
 							Listener: ln,
 							server:   srv.server,
@@ -498,7 +573,7 @@ func (app *App) Start() error {
 
 					// if binding to port 0, the OS chooses a port for us;
 					// but the user won't know the port unless we print it
-				if !listenAddr.IsUnixNetwork() && listenAddr.StartPort == 0 && listenAddr.EndPort == 0 {
+					if !listenAddr.IsUnixNetwork() && !listenAddr.IsFdNetwork() && listenAddr.StartPort == 0 && listenAddr.EndPort == 0 {
 						app.logger.Info("port 0 listener",
 							zap.String("input_address", lnAddr),
 							zap.String("actual_address", ln.Addr().String()))
@@ -512,11 +587,46 @@ func (app *App) Start() error {
 					srv.listeners = append(srv.listeners, ln)
 
 					// enable HTTP/1 if configured
-				if srv.protocol("h1") {
+					if h1ok {
 						//nolint:errcheck
 						go srv.server.Serve(ln)
 					}
 				}
+
+				if h2ok && !useTLS {
+					// Can only serve h2 with TLS enabled
+					app.logger.Warn("HTTP/2 skipped because it requires TLS",
+						zap.String("network", listenAddr.Network),
+						zap.String("addr", hostport))
+				}
+
+				if h3ok {
+					// Can't serve HTTP/3 on the same socket as HTTP/1 and 2 because it uses
+					// a different transport mechanism... which is fine, but the OS doesn't
+					// differentiate between a SOCK_STREAM file and a SOCK_DGRAM file; they
+					// are still one file on the system. So even though "unixpacket" and
+					// "unixgram" are different network types just as "tcp" and "udp" are,
+					// the OS will not let us use the same file as both STREAM and DGRAM.
+					if listenAddr.IsUnixNetwork() {
+						app.logger.Warn("HTTP/3 disabled because Unix can't multiplex STREAM and DGRAM on same socket",
+							zap.String("file", hostport))
+						continue
+					}
+
+					if useTLS {
+						// enable HTTP/3 if configured
+						app.logger.Info("enabling HTTP/3 listener", zap.String("addr", hostport))
+						if err := srv.serveHTTP3(listenAddr.At(portOffset), tlsCfg); err != nil {
+							return err
+						}
+					} else {
+						// Can only serve h3 with TLS enabled
+						app.logger.Warn("HTTP/3 skipped because it requires TLS",
+							zap.String("network", listenAddr.Network),
+							zap.String("addr", hostport))
+					}
+				}
+			}
 		}
 
 		srv.logger.Info("server running",
@@ -607,16 +717,7 @@ func (app *App) Stop() error {
 			return
 		}
 
-		// First close h3server then close listeners unlike stdlib for several reasons:
+		if err := server.h3server.Shutdown(ctx); err != nil {
-		// 1, udp has only a single socket, once closed, no more data can be read and
-		// written. In contrast, closing tcp listeners won't affect established connections.
-		// This have something to do with graceful shutdown when upstream implements it.
-		// 2, h3server will only close listeners it's registered (quic listeners). Closing
-		// listener first and these listeners maybe unregistered thus won't be closed. caddy
-		// distinguishes quic-listener and underlying datagram sockets.
-
-		// TODO: CloseGracefully, once implemented upstream (see https://github.com/quic-go/quic-go/issues/2103)
-		if err := server.h3server.Close(); err != nil {
 			app.logger.Error("HTTP/3 server shutdown",
 				zap.Error(err),
 				zap.Strings("addresses", server.Listen))
@@ -684,11 +785,20 @@ func (app *App) httpsPort() int {
 	return app.HTTPSPort
 }
 
-// defaultIdleTimeout is the default HTTP server timeout
+const (
-// for closing idle connections; useful to avoid resource
+	// defaultIdleTimeout is the default HTTP server timeout
-// exhaustion behind hungry CDNs, for example (we've had
+	// for closing idle connections; useful to avoid resource
-// several complaints without this).
+	// exhaustion behind hungry CDNs, for example (we've had
-const defaultIdleTimeout = caddy.Duration(5 * time.Minute)
+	// several complaints without this).
+	defaultIdleTimeout = caddy.Duration(5 * time.Minute)
+
+	// defaultReadHeaderTimeout is the default timeout for
+	// reading HTTP headers from clients. Headers are generally
+	// small, often less than 1 KB, so it shouldn't take a
+	// long time even on legitimately slow connections or
+	// busy servers to read it.
+	defaultReadHeaderTimeout = caddy.Duration(time.Minute)
+)
 
 // Interface guards
 var (

modules/caddyhttp/autohttps.go

@@ -17,6 +17,7 @@ package caddyhttp
 import (
 	"fmt"
 	"net/http"
+	"slices"
 	"strconv"
 	"strings"
 
@@ -64,17 +65,12 @@ type AutoHTTPSConfig struct {
 	// enabled. To force automated certificate management
 	// regardless of loaded certificates, set this to true.
 	IgnoreLoadedCerts bool `json:"ignore_loaded_certificates,omitempty"`
-}
 
-// Skipped returns true if name is in skipSlice, which
+	// If true, automatic HTTPS will prefer wildcard names
-// should be either the Skip or SkipCerts field on ahc.
+	// and ignore non-wildcard names if both are available.
-func (ahc AutoHTTPSConfig) Skipped(name string, skipSlice []string) bool {
+	// This allows for writing a config with top-level host
-	for _, n := range skipSlice {
+	// matchers without having those names produce certificates.
-		if name == n {
+	PreferWildcard bool `json:"prefer_wildcard,omitempty"`
-			return true
-		}
-	}
-	return false
 }
 
 // automaticHTTPSPhase1 provisions all route matchers, determines
@@ -158,7 +154,7 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 								return fmt.Errorf("%s: route %d, matcher set %d, matcher %d, host matcher %d: %v",
 									srvName, routeIdx, matcherSetIdx, matcherIdx, hostMatcherIdx, err)
 							}
-							if !srv.AutoHTTPS.Skipped(d, srv.AutoHTTPS.Skip) {
+							if !slices.Contains(srv.AutoHTTPS.Skip, d) {
 								serverDomainSet[d] = struct{}{}
 							}
 						}
@@ -167,6 +163,27 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 			}
 		}
 
+		if srv.AutoHTTPS.PreferWildcard {
+			wildcards := make(map[string]struct{})
+			for d := range serverDomainSet {
+				if strings.HasPrefix(d, "*.") {
+					wildcards[d[2:]] = struct{}{}
+				}
+			}
+			for d := range serverDomainSet {
+				if strings.HasPrefix(d, "*.") {
+					continue
+				}
+				base := d
+				if idx := strings.Index(d, "."); idx != -1 {
+					base = d[idx+1:]
+				}
+				if _, ok := wildcards[base]; ok {
+					delete(serverDomainSet, d)
+				}
+			}
+		}
+
 		// nothing more to do here if there are no domains that qualify for
 		// automatic HTTPS and there are no explicit TLS connection policies:
 		// if there is at least one domain but no TLS conn policy (F&&T), we'll
@@ -188,12 +205,13 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 		// for all the hostnames we found, filter them so we have
 		// a deduplicated list of names for which to obtain certs
 		// (only if cert management not disabled for this server)
+		var echDomains []string
 		if srv.AutoHTTPS.DisableCerts {
 			logger.Warn("skipping automated certificate management for server because it is disabled", zap.String("server_name", srvName))
 		} else {
 			for d := range serverDomainSet {
 				if certmagic.SubjectQualifiesForCert(d) &&
-					!srv.AutoHTTPS.Skipped(d, srv.AutoHTTPS.SkipCerts) {
+					!slices.Contains(srv.AutoHTTPS.SkipCerts, d) {
 					// if a certificate for this name is already loaded,
 					// don't obtain another one for it, unless we are
 					// supposed to ignore loaded certificates
@@ -214,10 +232,14 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 					}
 
 					uniqueDomainsForCerts[d] = struct{}{}
+					echDomains = append(echDomains, d)
 				}
 			}
 		}
 
+		// let the TLS server know we have some hostnames that could be protected behind ECH
+		app.tlsApp.RegisterServerNames(echDomains)
+
 		// tell the server to use TLS if it is not already doing so
 		if srv.TLSConnPolicies == nil {
 			srv.TLSConnPolicies = caddytls.ConnectionPolicies{new(caddytls.ConnectionPolicy)}
@@ -303,11 +325,21 @@ uniqueDomainsLoop:
 			}
 		}
 
-		// if no automation policy exists for the name yet, we
+		// if no automation policy exists for the name yet, we will associate it with an implicit one;
-		// will associate it with an implicit one
+		// we handle tailscale domains specially, and we also separate out identifiers that need the
+		// internal issuer (self-signed certs); certmagic does not consider public IP addresses to be
+		// disqualified for public certs, because there are public CAs that will issue certs for IPs.
+		// However, with auto-HTTPS, many times there is no issuer explicitly defined, and the default
+		// issuers do not (currently, as of 2024) issue IP certificates; so assign all IP subjects to
+		// the internal issuer when there are no explicit automation policies
+		shouldUseInternal := func(ident string) bool {
+			usingDefaultIssuersAndIsIP := certmagic.SubjectIsIP(ident) &&
+				(app.tlsApp == nil || app.tlsApp.Automation == nil || len(app.tlsApp.Automation.Policies) == 0)
+			return !certmagic.SubjectQualifiesForPublicCert(d) || usingDefaultIssuersAndIsIP
+		}
 		if isTailscaleDomain(d) {
 			tailscale = append(tailscale, d)
-		} else if !certmagic.SubjectQualifiesForPublicCert(d) {
+		} else if shouldUseInternal(d) {
 			internal = append(internal, d)
 		}
 	}
@@ -742,7 +774,7 @@ func (app *App) automaticHTTPSPhase2() error {
 	)
 	err := app.tlsApp.Manage(app.allCertDomains)
 	if err != nil {
-		return fmt.Errorf("managing certificates for %v: %s", app.allCertDomains, err)
+		return fmt.Errorf("managing certificates for %d domains: %s", len(app.allCertDomains), err)
 	}
 	app.allCertDomains = nil // no longer needed; allow GC to deallocate
 	return nil

modules/caddyhttp/caddyauth/caddyauth.go

@@ -19,6 +19,7 @@ import (
 	"net/http"
 
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
@@ -76,9 +77,9 @@ func (a Authentication) ServeHTTP(w http.ResponseWriter, r *http.Request, next c
 	for provName, prov := range a.Providers {
 		user, authed, err = prov.Authenticate(w, r)
 		if err != nil {
-			a.logger.Error("auth provider returned error",
+			if c := a.logger.Check(zapcore.ErrorLevel, "auth provider returned error"); c != nil {
-				zap.String("provider", provName),
+				c.Write(zap.String("provider", provName), zap.Error(err))
-				zap.Error(err))
+			}
 			continue
 		}
 		if authed {

modules/caddyhttp/caddyhttp.go

@@ -36,10 +36,26 @@ func init() {
 // RequestMatcher is a type that can match to a request.
 // A route matcher MUST NOT modify the request, with the
 // only exception being its context.
+//
+// Deprecated: Matchers should now implement RequestMatcherWithError.
+// You may remove any interface guards for RequestMatcher
+// but keep your Match() methods for backwards compatibility.
 type RequestMatcher interface {
 	Match(*http.Request) bool
 }
 
+// RequestMatcherWithError is like RequestMatcher but can return an error.
+// An error during matching will abort the request middleware chain and
+// invoke the error middleware chain.
+//
+// This will eventually replace RequestMatcher. Matcher modules
+// should implement both interfaces, and once all modules have
+// been updated to use RequestMatcherWithError, the RequestMatcher
+// interface may eventually be dropped.
+type RequestMatcherWithError interface {
+	MatchWithError(*http.Request) (bool, error)
+}
+
 // Handler is like http.Handler except ServeHTTP may return an error.
 //
 // If any handler encounters an error, it should be returned for proper

modules/caddyhttp/celmatcher.go

@@ -126,6 +126,10 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
 	// light (and possibly naïve) syntactic sugar
 	m.expandedExpr = placeholderRegexp.ReplaceAllString(m.Expr, placeholderExpansion)
 
+	// as a second pass, we'll strip the escape character from an escaped
+	// placeholder, so that it can be used as an input to other CEL functions
+	m.expandedExpr = escapedPlaceholderRegexp.ReplaceAllString(m.expandedExpr, escapedPlaceholderExpansion)
+
 	// our type adapter expands CEL's standard type support
 	m.ta = celTypeAdapter{}
 
@@ -159,14 +163,17 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
 
 	// create the CEL environment
 	env, err := cel.NewEnv(
-		cel.Function(placeholderFuncName, cel.SingletonBinaryBinding(m.caddyPlaceholderFunc), cel.Overload(
+		cel.Function(CELPlaceholderFuncName, cel.SingletonBinaryBinding(m.caddyPlaceholderFunc), cel.Overload(
-			placeholderFuncName+"_httpRequest_string",
+			CELPlaceholderFuncName+"_httpRequest_string",
 			[]*cel.Type{httpRequestObjectType, cel.StringType},
 			cel.AnyType,
 		)),
-		cel.Variable("request", httpRequestObjectType),
+		cel.Variable(CELRequestVarName, httpRequestObjectType),
 		cel.CustomTypeAdapter(m.ta),
 		ext.Strings(),
+		ext.Bindings(),
+		ext.Lists(),
+		ext.Math(),
 		matcherLib,
 	)
 	if err != nil {
@@ -195,17 +202,25 @@ func (m *MatchExpression) Provision(ctx caddy.Context) error {
 
 // Match returns true if r matches m.
 func (m MatchExpression) Match(r *http.Request) bool {
+	match, err := m.MatchWithError(r)
+	if err != nil {
+		SetVar(r.Context(), MatcherErrorVarKey, err)
+	}
+	return match
+}
+
+// MatchWithError returns true if r matches m.
+func (m MatchExpression) MatchWithError(r *http.Request) (bool, error) {
 	celReq := celHTTPRequest{r}
 	out, _, err := m.prg.Eval(celReq)
 	if err != nil {
 		m.log.Error("evaluating expression", zap.Error(err))
-		SetVar(r.Context(), MatcherErrorVarKey, err)
+		return false, err
-		return false
 	}
 	if outBool, ok := out.Value().(bool); ok {
-		return outBool
+		return outBool, nil
 	}
-	return false
+	return false, nil
 }
 
 // UnmarshalCaddyfile implements caddyfile.Unmarshaler.
@@ -247,7 +262,7 @@ func (m MatchExpression) caddyPlaceholderFunc(lhs, rhs ref.Val) ref.Val {
 		return types.NewErr(
 			"invalid request of type '%v' to %s(request, placeholderVarName)",
 			lhs.Type(),
-			placeholderFuncName,
+			CELPlaceholderFuncName,
 		)
 	}
 	phStr, ok := rhs.(types.String)
@@ -255,7 +270,7 @@ func (m MatchExpression) caddyPlaceholderFunc(lhs, rhs ref.Val) ref.Val {
 		return types.NewErr(
 			"invalid placeholder variable name of type '%v' to %s(request, placeholderVarName)",
 			rhs.Type(),
-			placeholderFuncName,
+			CELPlaceholderFuncName,
 		)
 	}
 
@@ -275,7 +290,7 @@ var httpRequestCELType = cel.ObjectType("http.Request", traits.ReceiverType)
 type celHTTPRequest struct{ *http.Request }
 
 func (cr celHTTPRequest) ResolveName(name string) (any, bool) {
-	if name == "request" {
+	if name == CELRequestVarName {
 		return cr, true
 	}
 	return nil, false
@@ -340,7 +355,7 @@ func (celTypeAdapter) NativeToValue(value any) ref.Val {
 	case time.Time:
 		return types.Timestamp{Time: v}
 	case error:
-		types.NewErr(v.Error())
+		return types.WrapErr(v)
 	}
 	return types.DefaultTypeAdapter.NativeToValue(value)
 }
@@ -373,7 +388,7 @@ type CELLibraryProducer interface {
 // limited set of function signatures. For strong type validation you may need
 // to provide a custom macro which does a more detailed analysis of the CEL
 // literal provided to the macro as an argument.
-func CELMatcherImpl(macroName, funcName string, matcherDataTypes []*cel.Type, fac CELMatcherFactory) (cel.Library, error) {
+func CELMatcherImpl(macroName, funcName string, matcherDataTypes []*cel.Type, fac any) (cel.Library, error) {
 	requestType := cel.ObjectType("http.Request")
 	var macro parser.Macro
 	switch len(matcherDataTypes) {
@@ -417,7 +432,11 @@ func CELMatcherImpl(macroName, funcName string, matcherDataTypes []*cel.Type, fa
 }
 
 // CELMatcherFactory converts a constant CEL value into a RequestMatcher.
-type CELMatcherFactory func(data ref.Val) (RequestMatcher, error)
+// Deprecated: Use CELMatcherWithErrorFactory instead.
+type CELMatcherFactory = func(data ref.Val) (RequestMatcher, error)
+
+// CELMatcherWithErrorFactory converts a constant CEL value into a RequestMatcherWithError.
+type CELMatcherWithErrorFactory = func(data ref.Val) (RequestMatcherWithError, error)
 
 // matcherCELLibrary is a simplistic configurable cel.Library implementation.
 type matcherCELLibrary struct {
@@ -445,7 +464,7 @@ func (lib *matcherCELLibrary) ProgramOptions() []cel.ProgramOption {
 // that takes a single argument, and optimizes the implementation to precompile
 // the matcher and return a function that references the precompiled and
 // provisioned matcher.
-func CELMatcherDecorator(funcName string, fac CELMatcherFactory) interpreter.InterpretableDecorator {
+func CELMatcherDecorator(funcName string, fac any) interpreter.InterpretableDecorator {
 	return func(i interpreter.Interpretable) (interpreter.Interpretable, error) {
 		call, ok := i.(interpreter.InterpretableCall)
 		if !ok {
@@ -457,15 +476,15 @@ func CELMatcherDecorator(funcName string, fac CELMatcherFactory) interpreter.Int
 		callArgs := call.Args()
 		reqAttr, ok := callArgs[0].(interpreter.InterpretableAttribute)
 		if !ok {
-			return nil, errors.New("missing 'request' argument")
+			return nil, errors.New("missing 'req' argument")
 		}
 		nsAttr, ok := reqAttr.Attr().(interpreter.NamespacedAttribute)
 		if !ok {
-			return nil, errors.New("missing 'request' argument")
+			return nil, errors.New("missing 'req' argument")
 		}
 		varNames := nsAttr.CandidateVariableNames()
-		if len(varNames) != 1 || len(varNames) == 1 && varNames[0] != "request" {
+		if len(varNames) != 1 || len(varNames) == 1 && varNames[0] != CELRequestVarName {
-			return nil, errors.New("missing 'request' argument")
+			return nil, errors.New("missing 'req' argument")
 		}
 		matcherData, ok := callArgs[1].(interpreter.InterpretableConst)
 		if !ok {
@@ -474,7 +493,9 @@ func CELMatcherDecorator(funcName string, fac CELMatcherFactory) interpreter.Int
 			// and matcher provisioning should be handled at dynamically.
 			return i, nil
 		}
-		matcher, err := fac(matcherData.Value())
+
+		if factory, ok := fac.(CELMatcherWithErrorFactory); ok {
+			matcher, err := factory(matcherData.Value())
 			if err != nil {
 				return nil, err
 			}
@@ -487,23 +508,78 @@ func CELMatcherDecorator(funcName string, fac CELMatcherFactory) interpreter.Int
 					// If needed this call could be changed to convert the value
 					// to a *http.Request using CEL's ConvertToNative method.
 					httpReq := celReq.Value().(celHTTPRequest)
+					match, err := matcher.MatchWithError(httpReq.Request)
+					if err != nil {
+						return types.WrapErr(err)
+					}
+					return types.Bool(match)
+				},
+			), nil
+		}
+
+		if factory, ok := fac.(CELMatcherFactory); ok {
+			matcher, err := factory(matcherData.Value())
+			if err != nil {
+				return nil, err
+			}
+			return interpreter.NewCall(
+				i.ID(), funcName, funcName+"_opt",
+				[]interpreter.Interpretable{reqAttr},
+				func(args ...ref.Val) ref.Val {
+					// The request value, guaranteed to be of type celHTTPRequest
+					celReq := args[0]
+					// If needed this call could be changed to convert the value
+					// to a *http.Request using CEL's ConvertToNative method.
+					httpReq := celReq.Value().(celHTTPRequest)
+					if m, ok := matcher.(RequestMatcherWithError); ok {
+						match, err := m.MatchWithError(httpReq.Request)
+						if err != nil {
+							return types.WrapErr(err)
+						}
+						return types.Bool(match)
+					}
 					return types.Bool(matcher.Match(httpReq.Request))
 				},
 			), nil
 		}
+
+		return nil, fmt.Errorf("invalid matcher factory, must be CELMatcherFactory or CELMatcherWithErrorFactory: %T", fac)
+	}
 }
 
 // CELMatcherRuntimeFunction creates a function binding for when the input to the matcher
 // is dynamically resolved rather than a set of static constant values.
-func CELMatcherRuntimeFunction(funcName string, fac CELMatcherFactory) functions.BinaryOp {
+func CELMatcherRuntimeFunction(funcName string, fac any) functions.BinaryOp {
 	return func(celReq, matcherData ref.Val) ref.Val {
-		matcher, err := fac(matcherData)
+		if factory, ok := fac.(CELMatcherWithErrorFactory); ok {
+			matcher, err := factory(matcherData)
 			if err != nil {
-			return types.NewErr(err.Error())
+				return types.WrapErr(err)
 			}
 			httpReq := celReq.Value().(celHTTPRequest)
+			match, err := matcher.MatchWithError(httpReq.Request)
+			if err != nil {
+				return types.WrapErr(err)
+			}
+			return types.Bool(match)
+		}
+		if factory, ok := fac.(CELMatcherFactory); ok {
+			matcher, err := factory(matcherData)
+			if err != nil {
+				return types.WrapErr(err)
+			}
+			httpReq := celReq.Value().(celHTTPRequest)
+			if m, ok := matcher.(RequestMatcherWithError); ok {
+				match, err := m.MatchWithError(httpReq.Request)
+				if err != nil {
+					return types.WrapErr(err)
+				}
+				return types.Bool(match)
+			}
 			return types.Bool(matcher.Match(httpReq.Request))
 		}
+		return types.NewErr("CELMatcherRuntimeFunction invalid matcher factory: %T", fac)
+	}
 }
 
 // celMatcherStringListMacroExpander validates that the macro is called
@@ -524,7 +600,7 @@ func celMatcherStringListMacroExpander(funcName string) cel.MacroFactory {
 				return nil, eh.NewError(arg.ID(), "matcher arguments must be string constants")
 			}
 		}
-		return eh.NewCall(funcName, eh.NewIdent("request"), eh.NewList(matchArgs...)), nil
+		return eh.NewCall(funcName, eh.NewIdent(CELRequestVarName), eh.NewList(matchArgs...)), nil
 	}
 }
 
@@ -538,7 +614,7 @@ func celMatcherStringMacroExpander(funcName string) parser.MacroExpander {
 			return nil, eh.NewError(0, "matcher requires one argument")
 		}
 		if isCELStringExpr(args[0]) {
-			return eh.NewCall(funcName, eh.NewIdent("request"), args[0]), nil
+			return eh.NewCall(funcName, eh.NewIdent(CELRequestVarName), args[0]), nil
 		}
 		return nil, eh.NewError(args[0].ID(), "matcher argument must be a string literal")
 	}
@@ -572,7 +648,7 @@ func celMatcherJSONMacroExpander(funcName string) parser.MacroExpander {
 					return nil, eh.NewError(entry.AsMapEntry().Value().ID(), "matcher map values must be string or list literals")
 				}
 			}
-			return eh.NewCall(funcName, eh.NewIdent("request"), arg), nil
+			return eh.NewCall(funcName, eh.NewIdent(CELRequestVarName), arg), nil
 		case ast.UnspecifiedExprKind, ast.CallKind, ast.ComprehensionKind, ast.IdentKind, ast.ListKind, ast.LiteralKind, ast.SelectKind:
 			// appeasing the linter :)
 		}
@@ -646,7 +722,7 @@ func isCELCaddyPlaceholderCall(e ast.Expr) bool {
 	switch e.Kind() {
 	case ast.CallKind:
 		call := e.AsCall()
-		if call.FunctionName() == "caddyPlaceholder" {
+		if call.FunctionName() == CELPlaceholderFuncName {
 			return true
 		}
 	case ast.UnspecifiedExprKind, ast.ComprehensionKind, ast.IdentKind, ast.ListKind, ast.LiteralKind, ast.MapKind, ast.SelectKind, ast.StructKind:
@@ -701,8 +777,15 @@ func isCELStringListLiteral(e ast.Expr) bool {
 // expressions with a proper CEL function call; this is
 // just for syntactic sugar.
 var (
-	placeholderRegexp    = regexp.MustCompile(`{([a-zA-Z][\w.-]+)}`)
+	// The placeholder may not be preceded by a backslash; the expansion
-	placeholderExpansion = `caddyPlaceholder(request, "${1}")`
+	// will include the preceding character if it is not a backslash.
+	placeholderRegexp    = regexp.MustCompile(`([^\\]|^){([a-zA-Z][\w.-]+)}`)
+	placeholderExpansion = `${1}ph(req, "${2}")`
+
+	// As a second pass, we need to strip the escape character in front of
+	// the placeholder, if it exists.
+	escapedPlaceholderRegexp    = regexp.MustCompile(`\\{([a-zA-Z][\w.-]+)}`)
+	escapedPlaceholderExpansion = `{${1}}`
 
 	CELTypeJSON = cel.MapType(cel.StringType, cel.DynType)
 )
@@ -710,14 +793,17 @@ var (
 var httpRequestObjectType = cel.ObjectType("http.Request")
 
 // The name of the CEL function which accesses Replacer values.
-const placeholderFuncName = "caddyPlaceholder"
+const CELPlaceholderFuncName = "ph"
+
+// The name of the CEL request variable.
+const CELRequestVarName = "req"
 
 const MatcherNameCtxKey = "matcher_name"
 
 // Interface guards
 var (
 	_ caddy.Provisioner       = (*MatchExpression)(nil)
-	_ RequestMatcher        = (*MatchExpression)(nil)
+	_ RequestMatcherWithError = (*MatchExpression)(nil)
 	_ caddyfile.Unmarshaler   = (*MatchExpression)(nil)
 	_ json.Marshaler          = (*MatchExpression)(nil)
 	_ json.Unmarshaler        = (*MatchExpression)(nil)

modules/caddyhttp/celmatcher_test.go

@@ -70,12 +70,35 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			wantResult: true,
 		},
 		{
-			name: "header error (MatchHeader)",
+			name: "header matches an escaped placeholder value (MatchHeader)",
+			expression: &MatchExpression{
+				Expr: `header({'Field': '\\\{foobar}'})`,
+			},
+			urlTarget:  "https://example.com/foo",
+			httpHeader: &http.Header{"Field": []string{"{foobar}"}},
+			wantResult: true,
+		},
+		{
+			name: "header matches an placeholder replaced during the header matcher (MatchHeader)",
+			expression: &MatchExpression{
+				Expr: `header({'Field': '\{http.request.uri.path}'})`,
+			},
+			urlTarget:  "https://example.com/foo",
+			httpHeader: &http.Header{"Field": []string{"/foo"}},
+			wantResult: true,
+		},
+		{
+			name: "header error, invalid escape sequence (MatchHeader)",
+			expression: &MatchExpression{
+				Expr: `header({'Field': '\\{foobar}'})`,
+			},
+			wantErr: true,
+		},
+		{
+			name: "header error, needs to be JSON syntax with field as key (MatchHeader)",
 			expression: &MatchExpression{
 				Expr: `header('foo')`,
 			},
-			urlTarget:  "https://example.com/foo",
-			httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
 			wantErr: true,
 		},
 		{
@@ -110,8 +133,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `header_regexp('foo')`,
 			},
-			urlTarget:  "https://example.com/foo",
-			httpHeader: &http.Header{"Field": []string{"foo", "bar"}},
 			wantErr: true,
 		},
 		{
@@ -143,7 +164,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `host(80)`,
 			},
-			urlTarget: "http://localhost:80",
 			wantErr: true,
 		},
 		{
@@ -169,8 +189,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `method()`,
 			},
-			urlTarget:  "https://foo.example.com",
-			httpMethod: "PUT",
 			wantErr: true,
 		},
 		{
@@ -266,7 +284,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `protocol()`,
 			},
-			urlTarget: "https://example.com",
 			wantErr: true,
 		},
 		{
@@ -274,7 +291,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `protocol('grpc', 'https')`,
 			},
-			urlTarget: "https://example.com",
 			wantErr: true,
 		},
 		{
@@ -282,7 +298,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `protocol(true)`,
 			},
-			urlTarget: "https://example.com",
 			wantErr: true,
 		},
 		{
@@ -330,7 +345,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `query({1: "1"})`,
 			},
-			urlTarget: "https://example.com/foo",
 			wantErr: true,
 		},
 		{
@@ -338,7 +352,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `query(Message{field: "1"})`,
 			},
-			urlTarget: "https://example.com/foo",
 			wantErr: true,
 		},
 		{
@@ -346,7 +359,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `query({"debug": 1})`,
 			},
-			urlTarget: "https://example.com/foo/?debug=1",
 			wantErr: true,
 		},
 		{
@@ -354,7 +366,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `query()`,
 			},
-			urlTarget: "https://example.com/foo/?debug=1",
 			wantErr: true,
 		},
 		{
@@ -362,7 +373,6 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			expression: &MatchExpression{
 				Expr: `remote_ip()`,
 			},
-			urlTarget: "https://example.com/foo",
 			wantErr: true,
 		},
 		{
@@ -373,6 +383,67 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			urlTarget:  "https://example.com/foo",
 			wantResult: true,
 		},
+		{
+			name: "vars value (VarsMatcher)",
+			expression: &MatchExpression{
+				Expr: `vars({'foo': 'bar'})`,
+			},
+			urlTarget:  "https://example.com/foo",
+			wantResult: true,
+		},
+		{
+			name: "vars matches placeholder, needs escape (VarsMatcher)",
+			expression: &MatchExpression{
+				Expr: `vars({'\{http.request.uri.path}': '/foo'})`,
+			},
+			urlTarget:  "https://example.com/foo",
+			wantResult: true,
+		},
+		{
+			name: "vars error wrong syntax (VarsMatcher)",
+			expression: &MatchExpression{
+				Expr: `vars('foo', 'bar')`,
+			},
+			wantErr: true,
+		},
+		{
+			name: "vars error no args (VarsMatcher)",
+			expression: &MatchExpression{
+				Expr: `vars()`,
+			},
+			wantErr: true,
+		},
+		{
+			name: "vars_regexp value (MatchVarsRE)",
+			expression: &MatchExpression{
+				Expr: `vars_regexp('foo', 'ba?r')`,
+			},
+			urlTarget:  "https://example.com/foo",
+			wantResult: true,
+		},
+		{
+			name: "vars_regexp value with name (MatchVarsRE)",
+			expression: &MatchExpression{
+				Expr: `vars_regexp('name', 'foo', 'ba?r')`,
+			},
+			urlTarget:  "https://example.com/foo",
+			wantResult: true,
+		},
+		{
+			name: "vars_regexp matches placeholder, needs escape (MatchVarsRE)",
+			expression: &MatchExpression{
+				Expr: `vars_regexp('\{http.request.uri.path}', '/fo?o')`,
+			},
+			urlTarget:  "https://example.com/foo",
+			wantResult: true,
+		},
+		{
+			name: "vars_regexp error no args (MatchVarsRE)",
+			expression: &MatchExpression{
+				Expr: `vars_regexp()`,
+			},
+			wantErr: true,
+		},
 	}
 )
 
@@ -396,6 +467,9 @@ func TestMatchExpressionMatch(t *testing.T) {
 			}
 			repl := caddy.NewReplacer()
 			ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
+			ctx = context.WithValue(ctx, VarsCtxKey, map[string]any{
+				"foo": "bar",
+			})
 			req = req.WithContext(ctx)
 			addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
 
@@ -415,7 +489,11 @@ func TestMatchExpressionMatch(t *testing.T) {
 				}
 			}
 
-			if tc.expression.Match(req) != tc.wantResult {
+			matches, err := tc.expression.MatchWithError(req)
+			if err != nil {
+				t.Errorf("MatchExpression.Match() error = %v", err)
+			}
+			if matches != tc.wantResult {
 				t.Errorf("MatchExpression.Match() expected to return '%t', for expression : '%s'", tc.wantResult, tc.expression.Expr)
 			}
 		})
@@ -436,6 +514,9 @@ func BenchmarkMatchExpressionMatch(b *testing.B) {
 			}
 			repl := caddy.NewReplacer()
 			ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
+			ctx = context.WithValue(ctx, VarsCtxKey, map[string]any{
+				"foo": "bar",
+			})
 			req = req.WithContext(ctx)
 			addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
 			if tc.clientCertificate != nil {
@@ -455,7 +536,7 @@ func BenchmarkMatchExpressionMatch(b *testing.B) {
 			}
 			b.ResetTimer()
 			for i := 0; i < b.N; i++ {
-				tc.expression.Match(req)
+				tc.expression.MatchWithError(req)
 			}
 		})
 	}

modules/caddyhttp/encode/caddyfile.go

@@ -57,21 +57,7 @@ func (enc *Encode) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 	d.Next() // consume directive name
 
 	prefer := []string{}
-	for _, arg := range d.RemainingArgs() {
+	remainingArgs := d.RemainingArgs()
-		mod, err := caddy.GetModule("http.encoders." + arg)
-		if err != nil {
-			return d.Errf("finding encoder module '%s': %v", mod, err)
-		}
-		encoding, ok := mod.New().(Encoding)
-		if !ok {
-			return d.Errf("module %s is not an HTTP encoding", mod)
-		}
-		if enc.EncodingsRaw == nil {
-			enc.EncodingsRaw = make(caddy.ModuleMap)
-		}
-		enc.EncodingsRaw[arg] = caddyconfig.JSON(encoding, nil)
-		prefer = append(prefer, arg)
-	}
 
 	responseMatchers := make(map[string]caddyhttp.ResponseMatcher)
 	for d.NextBlock(0) {
@@ -111,6 +97,26 @@ func (enc *Encode) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 		}
 	}
 
+	if len(prefer) == 0 && len(remainingArgs) == 0 {
+		remainingArgs = []string{"zstd", "gzip"}
+	}
+
+	for _, arg := range remainingArgs {
+		mod, err := caddy.GetModule("http.encoders." + arg)
+		if err != nil {
+			return d.Errf("finding encoder module '%s': %v", mod, err)
+		}
+		encoding, ok := mod.New().(Encoding)
+		if !ok {
+			return d.Errf("module %s is not an HTTP encoding", mod)
+		}
+		if enc.EncodingsRaw == nil {
+			enc.EncodingsRaw = make(caddy.ModuleMap)
+		}
+		enc.EncodingsRaw[arg] = caddyconfig.JSON(encoding, nil)
+		prefer = append(prefer, arg)
+	}
+
 	// use the order in which the encoders were defined.
 	enc.Prefer = prefer
 

modules/caddyhttp/encode/encode.go

@@ -24,6 +24,7 @@ import (
 	"io"
 	"math"
 	"net/http"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -112,7 +113,8 @@ func (enc *Encode) Provision(ctx caddy.Context) error {
 					"application/x-ttf*",
 					"application/xhtml+xml*",
 					"application/xml*",
-					"font/*",
+					"font/ttf*",
+					"font/otf*",
 					"image/svg+xml*",
 					"image/vnd.microsoft.icon*",
 					"image/x-icon*",
@@ -154,7 +156,7 @@ func (enc *Encode) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyh
 			if _, ok := enc.writerPools[encName]; !ok {
 				continue // encoding not offered
 			}
-			w = enc.openResponseWriter(encName, w)
+			w = enc.openResponseWriter(encName, w, r.Method == http.MethodConnect)
 			defer w.(*responseWriter).Close()
 
 			// to comply with RFC 9110 section 8.8.3(.3), we modify the Etag when encoding
@@ -199,14 +201,14 @@ func (enc *Encode) addEncoding(e Encoding) error {
 // openResponseWriter creates a new response writer that may (or may not)
 // encode the response with encodingName. The returned response writer MUST
 // be closed after the handler completes.
-func (enc *Encode) openResponseWriter(encodingName string, w http.ResponseWriter) *responseWriter {
+func (enc *Encode) openResponseWriter(encodingName string, w http.ResponseWriter, isConnect bool) *responseWriter {
 	var rw responseWriter
-	return enc.initResponseWriter(&rw, encodingName, w)
+	return enc.initResponseWriter(&rw, encodingName, w, isConnect)
 }
 
 // initResponseWriter initializes the responseWriter instance
 // allocated in openResponseWriter, enabling mid-stack inlining.
-func (enc *Encode) initResponseWriter(rw *responseWriter, encodingName string, wrappedRW http.ResponseWriter) *responseWriter {
+func (enc *Encode) initResponseWriter(rw *responseWriter, encodingName string, wrappedRW http.ResponseWriter, isConnect bool) *responseWriter {
 	if rww, ok := wrappedRW.(*caddyhttp.ResponseWriterWrapper); ok {
 		rw.ResponseWriter = rww
 	} else {
@@ -214,6 +216,7 @@ func (enc *Encode) initResponseWriter(rw *responseWriter, encodingName string, w
 	}
 	rw.encodingName = encodingName
 	rw.config = enc
+	rw.isConnect = isConnect
 
 	return rw
 }
@@ -228,6 +231,7 @@ type responseWriter struct {
 	config       *Encode
 	statusCode   int
 	wroteHeader  bool
+	isConnect    bool
 }
 
 // WriteHeader stores the status to write when the time comes
@@ -243,6 +247,14 @@ func (rw *responseWriter) WriteHeader(status int) {
 		rw.Header().Add("Vary", "Accept-Encoding")
 	}
 
+	// write status immediately if status is 2xx and the request is CONNECT
+	// since it means the response is successful.
+	// see: https://github.com/caddyserver/caddy/issues/6733#issuecomment-2525058845
+	if rw.isConnect && 200 <= status && status <= 299 {
+		rw.ResponseWriter.WriteHeader(status)
+		rw.wroteHeader = true
+	}
+
 	// write status immediately when status code is informational
 	// see: https://caddy.community/t/disappear-103-early-hints-response-with-encode-enable-caddy-v2-7-6/23081/5
 	if 100 <= status && status <= 199 {
@@ -258,6 +270,12 @@ func (enc *Encode) Match(rw *responseWriter) bool {
 // FlushError is an alternative Flush returning an error. It delays the actual Flush of the underlying
 // ResponseWriterWrapper until headers were written.
 func (rw *responseWriter) FlushError() error {
+	// WriteHeader wasn't called and is a CONNECT request, treat it as a success.
+	// otherwise, wait until header is written.
+	if rw.isConnect && !rw.wroteHeader && rw.statusCode == 0 {
+		rw.WriteHeader(http.StatusOK)
+	}
+
 	if !rw.wroteHeader {
 		// flushing the underlying ResponseWriter will write header and status code,
 		// but we need to delay that until we can determine if we must encode and
@@ -265,6 +283,14 @@ func (rw *responseWriter) FlushError() error {
 		// to rw.Write (see bug in #4314)
 		return nil
 	}
+	// also flushes the encoder, if any
+	// see: https://github.com/jjiang-stripe/caddy-slow-gzip
+	if rw.w != nil {
+		err := rw.w.Flush()
+		if err != nil {
+			return err
+		}
+	}
 	//nolint:bodyclose
 	return http.NewResponseController(rw.ResponseWriter).Flush()
 }
@@ -278,6 +304,12 @@ func (rw *responseWriter) Write(p []byte) (int, error) {
 		return 0, nil
 	}
 
+	// WriteHeader wasn't called and is a CONNECT request, treat it as a success.
+	// otherwise, determine if the response should be compressed.
+	if rw.isConnect && !rw.wroteHeader && rw.statusCode == 0 {
+		rw.WriteHeader(http.StatusOK)
+	}
+
 	// sniff content-type and determine content-length
 	if !rw.wroteHeader && rw.config.MinLength > 0 {
 		var gtMinLength bool
@@ -315,6 +347,49 @@ func (rw *responseWriter) Write(p []byte) (int, error) {
 	}
 }
 
+// used to mask ReadFrom method
+type writerOnly struct {
+	io.Writer
+}
+
+// copied from stdlib
+const sniffLen = 512
+
+// ReadFrom will try to use sendfile to copy from the reader to the response writer.
+// It's only used if the response writer implements io.ReaderFrom and the data can't be compressed.
+// It's based on stdlin http1.1 response writer implementation.
+// https://github.com/golang/go/blob/f4e3ec3dbe3b8e04a058d266adf8e048bab563f2/src/net/http/server.go#L586
+func (rw *responseWriter) ReadFrom(r io.Reader) (int64, error) {
+	rf, ok := rw.ResponseWriter.(io.ReaderFrom)
+	// sendfile can't be used anyway
+	if !ok {
+		// mask ReadFrom to avoid infinite recursion
+		return io.Copy(writerOnly{rw}, r)
+	}
+
+	var ns int64
+	// try to sniff the content type and determine if the response should be compressed
+	if !rw.wroteHeader && rw.config.MinLength > 0 {
+		var (
+			err error
+			buf [sniffLen]byte
+		)
+		// mask ReadFrom to let Write determine if the response should be compressed
+		ns, err = io.CopyBuffer(writerOnly{rw}, io.LimitReader(r, sniffLen), buf[:])
+		if err != nil || ns < sniffLen {
+			return ns, err
+		}
+	}
+
+	// the response will be compressed, no sendfile support
+	if rw.w != nil {
+		nr, err := io.Copy(rw.w, r)
+		return nr + ns, err
+	}
+	nr, err := rf.ReadFrom(r)
+	return nr + ns, err
+}
+
 // Close writes any remaining buffered response and
 // deallocates any active resources.
 func (rw *responseWriter) Close() error {
@@ -432,12 +507,9 @@ func AcceptedEncodings(r *http.Request, preferredOrder []string) []string {
 		}
 
 		// set server preference
-		prefOrder := -1
+		prefOrder := slices.Index(preferredOrder, encName)
-		for i, p := range preferredOrder {
+		if prefOrder > -1 {
-			if encName == p {
+			prefOrder = len(preferredOrder) - prefOrder
-				prefOrder = len(preferredOrder) - i
-				break
-			}
 		}
 
 		prefs = append(prefs, encodingPreference{
@@ -474,6 +546,7 @@ type encodingPreference struct {
 type Encoder interface {
 	io.WriteCloser
 	Reset(io.Writer)
+	Flush() error // encoder by default buffers data to maximize compressing rate
 }
 
 // Encoding is a type which can create encoders of its kind

modules/caddyhttp/encode/encode_test.go

@@ -9,7 +9,7 @@ import (
 func BenchmarkOpenResponseWriter(b *testing.B) {
 	enc := new(Encode)
 	for n := 0; n < b.N; n++ {
-		enc.openResponseWriter("test", nil)
+		enc.openResponseWriter("test", nil, false)
 	}
 }
 

modules/caddyhttp/fileserver/browse.go

@@ -33,6 +33,7 @@ import (
 	"time"
 
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
@@ -52,14 +53,32 @@ var BrowseTemplate string
 type Browse struct {
 	// Filename of the template to use instead of the embedded browse template.
 	TemplateFile string `json:"template_file,omitempty"`
+
 	// Determines whether or not targets of symlinks should be revealed.
 	RevealSymlinks bool `json:"reveal_symlinks,omitempty"`
+
+	// Override the default sort.
+	// It includes the following options:
+	//   - sort_by: name(default), namedirfirst, size, time
+	//   - order: asc(default), desc
+	// eg.:
+	//   - `sort time desc` will sort by time in descending order
+	//   - `sort size` will sort by size in ascending order
+	// The first option must be `sort_by` and the second option must be `order` (if exists).
+	SortOptions []string `json:"sort,omitempty"`
+
+	// FileLimit limits the number of up to n DirEntry values in directory order.
+	FileLimit int `json:"file_limit,omitempty"`
 }
 
+const (
+	defaultDirEntryLimit = 10000
+)
+
 func (fsrv *FileServer) serveBrowse(fileSystem fs.FS, root, dirPath string, w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
-	fsrv.logger.Debug("browse enabled; listing directory contents",
+	if c := fsrv.logger.Check(zapcore.DebugLevel, "browse enabled; listing directory contents"); c != nil {
-		zap.String("path", dirPath),
+		c.Write(zap.String("path", dirPath), zap.String("root", root))
-		zap.String("root", root))
+	}
 
 	// Navigation on the client-side gets messed up if the
 	// URL doesn't end in a trailing slash because hrefs to
@@ -81,7 +100,9 @@ func (fsrv *FileServer) serveBrowse(fileSystem fs.FS, root, dirPath string, w ht
 	origReq := r.Context().Value(caddyhttp.OriginalRequestCtxKey).(http.Request)
 	if r.URL.Path == "" || path.Base(origReq.URL.Path) == path.Base(r.URL.Path) {
 		if !strings.HasSuffix(origReq.URL.Path, "/") {
-			fsrv.logger.Debug("redirecting to trailing slash to preserve hrefs", zap.String("request_path", r.URL.Path))
+			if c := fsrv.logger.Check(zapcore.DebugLevel, "redirecting to trailing slash to preserve hrefs"); c != nil {
+				c.Write(zap.String("request_path", r.URL.Path))
+			}
 			return redirect(w, r, origReq.URL.Path+"/")
 		}
 	}
@@ -109,9 +130,9 @@ func (fsrv *FileServer) serveBrowse(fileSystem fs.FS, root, dirPath string, w ht
 
 	// speed up browser/client experience and caching by supporting If-Modified-Since
 	if ifModSinceStr := r.Header.Get("If-Modified-Since"); ifModSinceStr != "" {
-		ifModSince, err := time.ParseInLocation(http.TimeFormat, ifModSinceStr, time.Local)
+		// basically a copy of stdlib file server's handling of If-Modified-Since
-		lastModTrunc := listing.lastModified.Truncate(time.Second)
+		ifModSince, err := http.ParseTime(ifModSinceStr)
-		if err == nil && (lastModTrunc.Equal(ifModSince) || lastModTrunc.Before(ifModSince)) {
+		if err == nil && listing.lastModified.Truncate(time.Second).Compare(ifModSince) <= 0 {
 			w.WriteHeader(http.StatusNotModified)
 			return nil
 		}
@@ -192,7 +213,16 @@ func (fsrv *FileServer) serveBrowse(fileSystem fs.FS, root, dirPath string, w ht
 }
 
 func (fsrv *FileServer) loadDirectoryContents(ctx context.Context, fileSystem fs.FS, dir fs.ReadDirFile, root, urlPath string, repl *caddy.Replacer) (*browseTemplateContext, error) {
-	files, err := dir.ReadDir(10000) // TODO: this limit should probably be configurable
+	// modTime for the directory itself
+	stat, err := dir.Stat()
+	if err != nil {
+		return nil, err
+	}
+	dirLimit := defaultDirEntryLimit
+	if fsrv.Browse.FileLimit != 0 {
+		dirLimit = fsrv.Browse.FileLimit
+	}
+	files, err := dir.ReadDir(dirLimit)
 	if err != nil && err != io.EOF {
 		return nil, err
 	}
@@ -200,17 +230,40 @@ func (fsrv *FileServer) loadDirectoryContents(ctx context.Context, fileSystem fs
 	// user can presumably browse "up" to parent folder if path is longer than "/"
 	canGoUp := len(urlPath) > 1
 
-	return fsrv.directoryListing(ctx, fileSystem, files, canGoUp, root, urlPath, repl), nil
+	return fsrv.directoryListing(ctx, fileSystem, stat.ModTime(), files, canGoUp, root, urlPath, repl), nil
 }
 
 // browseApplyQueryParams applies query parameters to the listing.
 // It mutates the listing and may set cookies.
 func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Request, listing *browseTemplateContext) {
+	var orderParam, sortParam string
+
+	// The configs in Caddyfile have lower priority than Query params,
+	// so put it at first.
+	for idx, item := range fsrv.Browse.SortOptions {
+		// Only `sort` & `order`, 2 params are allowed
+		if idx >= 2 {
+			break
+		}
+		switch item {
+		case sortByName, sortByNameDirFirst, sortBySize, sortByTime:
+			sortParam = item
+		case sortOrderAsc, sortOrderDesc:
+			orderParam = item
+		}
+	}
+
 	layoutParam := r.URL.Query().Get("layout")
-	sortParam := r.URL.Query().Get("sort")
-	orderParam := r.URL.Query().Get("order")
 	limitParam := r.URL.Query().Get("limit")
 	offsetParam := r.URL.Query().Get("offset")
+	sortParamTmp := r.URL.Query().Get("sort")
+	if sortParamTmp != "" {
+		sortParam = sortParamTmp
+	}
+	orderParamTmp := r.URL.Query().Get("order")
+	if orderParamTmp != "" {
+		orderParam = orderParamTmp
+	}
 
 	switch layoutParam {
 	case "list", "grid", "":
@@ -233,11 +286,11 @@ func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Re
 	// then figure out the order
 	switch orderParam {
 	case "":
-		orderParam = "asc"
+		orderParam = sortOrderAsc
 		if orderCookie, orderErr := r.Cookie("order"); orderErr == nil {
 			orderParam = orderCookie.Value
 		}
-	case "asc", "desc":
+	case sortOrderAsc, sortOrderDesc:
 		http.SetCookie(w, &http.Cookie{Name: "order", Value: orderParam, Secure: r.TLS != nil})
 	}
 

modules/caddyhttp/fileserver/browse.html

@@ -1,10 +1,17 @@
+{{ $nonce := uuidv4 -}}
+{{ $nonceAttribute := print "nonce=" (quote $nonce) -}}
+{{ $csp := printf "default-src 'none'; img-src 'self'; object-src 'none'; base-uri 'none'; script-src 'nonce-%s'; style-src 'nonce-%s'; frame-ancestors 'self'; form-action 'self';" $nonce $nonce -}}
+{{/* To disable the Content-Security-Policy, set this to false */}}{{ $enableCsp := true -}}
+{{ if $enableCsp -}}
+  {{- .RespHeader.Set "Content-Security-Policy" $csp -}}
+{{ end -}}
 {{- define "icon"}}
 	{{- if .IsDir}}
 		{{- if .IsSymlink}}
 		<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-folder-filled" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
 			<path stroke="none" d="M0 0h24v24H0z" fill="none"/>
 			<path d="M9 3a1 1 0 0 1 .608 .206l.1 .087l2.706 2.707h6.586a3 3 0 0 1 2.995 2.824l.005 .176v8a3 3 0 0 1 -2.824 2.995l-.176 .005h-14a3 3 0 0 1 -2.995 -2.824l-.005 -.176v-11a3 3 0 0 1 2.824 -2.995l.176 -.005h4z" stroke-width="0" fill="currentColor"/>
-			<path fill="#000" d="M2.795 17.306c0-2.374 1.792-4.314 4.078-4.538v-1.104a.38.38 0 0 1 .651-.272l2.45 2.492a.132.132 0 0 1 0 .188l-2.45 2.492a.381.381 0 0 1-.651-.272V15.24c-1.889.297-3.436 1.39-3.817 3.26a2.809 2.809 0 0 1-.261-1.193Z" style="stroke-width:.127478"/>
+			<path fill="#000" d="M2.795 17.306c0-2.374 1.792-4.314 4.078-4.538v-1.104a.38.38 0 0 1 .651-.272l2.45 2.492a.132.132 0 0 1 0 .188l-2.45 2.492a.381.381 0 0 1-.651-.272V15.24c-1.889.297-3.436 1.39-3.817 3.26a2.809 2.809 0 0 1-.261-1.193Z" stroke-width=".127478"/>
 		</svg>
 		{{- else}}
 		<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-folder-filled" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
@@ -303,7 +310,7 @@
 		<meta charset="utf-8">
 		<meta name="color-scheme" content="light dark">
 		<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<style>
+<style {{ $nonceAttribute }}>
 * { padding: 0; margin: 0; box-sizing: border-box; }
 
 body {
@@ -342,6 +349,10 @@ svg,
 	text-decoration: none;
 }
 
+#layout-list, #layout-grid {
+	cursor: pointer;
+}
+
 .wrapper {
 	max-width: 1200px;
 	margin-left: auto;
@@ -768,10 +779,10 @@ footer {
 
 </style>
 {{- if eq .Layout "grid"}}
-<style>.wrapper { max-width: none; } main { margin-top: 1px; }</style>
+<style {{ $nonceAttribute }}>.wrapper { max-width: none; } main { margin-top: 1px; }</style>
 {{- end}}
 </head>
-<body onload="initPage()">
+<body>
 	<header>
 		<div class="wrapper">
 			<div class="breadcrumbs">Folder Path</div>
@@ -799,7 +810,7 @@ footer {
 						</span>
 						{{- end}}
 					</div>
-					<a href="javascript:queryParam('layout', '')" id="layout-list" class='layout{{if eq $.Layout "list" ""}}current{{end}}'>
+					<a id="layout-list" class='layout{{if eq $.Layout "list" ""}}current{{end}}'>
 						<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-layout-list" width="16" height="16" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
 							<path stroke="none" d="M0 0h24v24H0z" fill="none"/>
 							<path d="M4 4m0 2a2 2 0 0 1 2 -2h12a2 2 0 0 1 2 2v2a2 2 0 0 1 -2 2h-12a2 2 0 0 1 -2 -2z"/>
@@ -807,7 +818,7 @@ footer {
 						</svg>
 						List
 					</a>
-					<a href="javascript:queryParam('layout', 'grid')" id="layout-grid" class='layout{{if eq $.Layout "grid"}}current{{end}}'>
+					<a id="layout-grid" class='layout{{if eq $.Layout "grid"}}current{{end}}'>
 						<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-layout-grid" width="16" height="16" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
 							<path stroke="none" d="M0 0h24v24H0z" fill="none"/>
 							<path d="M4 4m0 1a1 1 0 0 1 1 -1h4a1 1 0 0 1 1 1v4a1 1 0 0 1 -1 1h-4a1 1 0 0 1 -1 -1z"/>
@@ -886,7 +897,7 @@ footer {
 									<path d="M10 10m-7 0a7 7 0 1 0 14 0a7 7 0 1 0 -14 0"/>
 									<path d="M21 21l-6 -6"/>
 								</svg>
-								<input type="search" placeholder="Search" id="filter" onkeyup='filter()'>
+								<input type="search" placeholder="Search" id="filter">
 							</div>
 						</th>
 						<th>
@@ -980,7 +991,7 @@ footer {
 							<div class="sizebar">
 								<div class="sizebar-bar"></div>
 								<div class="sizebar-text">
-									{{.HumanSize}}
+									{{if .IsSymlink}}↱&nbsp;{{end}}{{.HumanSize}}
 								</div>
 							</div>
 						</td>
@@ -1000,70 +1011,70 @@ footer {
 		<footer>
 			Served with
 			<a rel="noopener noreferrer" href="https://caddyserver.com">
-				<svg class="caddy-logo" viewBox="0 0 379 114" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linecap:round;stroke-linejoin:round;">
+				<svg class="caddy-logo" viewBox="0 0 379 114" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" fill-rule="evenodd" clip-rule="evenodd" stroke-linecap="round" stroke-linejoin="round">
 					<g transform="matrix(1,0,0,1,-1982.99,-530.985)">
 						<g transform="matrix(1.16548,0,0,1.10195,1823.12,393.466)">
 							<g transform="matrix(1,0,0,1,0.233052,1.17986)">
 								<g id="Icon" transform="matrix(0.858013,0,0,0.907485,-3224.99,-1435.83)">
 									<g>
 										<g transform="matrix(-0.191794,-0.715786,0.715786,-0.191794,4329.14,4673.64)">
-											<path d="M3901.56,610.734C3893.53,610.261 3886.06,608.1 3879.2,604.877C3872.24,601.608 3866.04,597.093 3860.8,591.633C3858.71,589.457 3856.76,587.149 3854.97,584.709C3853.2,582.281 3851.57,579.733 3850.13,577.066C3845.89,569.224 3843.21,560.381 3842.89,550.868C3842.57,543.321 3843.64,536.055 3845.94,529.307C3848.37,522.203 3852.08,515.696 3856.83,510.049L3855.79,509.095C3850.39,514.54 3846.02,520.981 3842.9,528.125C3839.84,535.125 3838.03,542.781 3837.68,550.868C3837.34,561.391 3839.51,571.425 3843.79,580.306C3845.27,583.38 3847.03,586.304 3849.01,589.049C3851.01,591.806 3853.24,594.39 3855.69,596.742C3861.75,602.568 3869,607.19 3877.03,610.1C3884.66,612.867 3892.96,614.059 3901.56,613.552L3901.56,610.734Z" style="fill:rgb(0,144,221);"/>
+											<path d="M3901.56,610.734C3893.53,610.261 3886.06,608.1 3879.2,604.877C3872.24,601.608 3866.04,597.093 3860.8,591.633C3858.71,589.457 3856.76,587.149 3854.97,584.709C3853.2,582.281 3851.57,579.733 3850.13,577.066C3845.89,569.224 3843.21,560.381 3842.89,550.868C3842.57,543.321 3843.64,536.055 3845.94,529.307C3848.37,522.203 3852.08,515.696 3856.83,510.049L3855.79,509.095C3850.39,514.54 3846.02,520.981 3842.9,528.125C3839.84,535.125 3838.03,542.781 3837.68,550.868C3837.34,561.391 3839.51,571.425 3843.79,580.306C3845.27,583.38 3847.03,586.304 3849.01,589.049C3851.01,591.806 3853.24,594.39 3855.69,596.742C3861.75,602.568 3869,607.19 3877.03,610.1C3884.66,612.867 3892.96,614.059 3901.56,613.552L3901.56,610.734Z" fill="rgb(0,144,221)"/>
 										</g>
 										<g transform="matrix(-0.191794,-0.715786,0.715786,-0.191794,4329.14,4673.64)">
-											<path d="M3875.69,496.573C3879.62,494.538 3883.8,492.897 3888.2,491.786C3892.49,490.704 3896.96,490.124 3901.56,490.032C3903.82,490.13 3906.03,490.332 3908.21,490.688C3917.13,492.147 3925.19,495.814 3932.31,500.683C3936.13,503.294 3939.59,506.335 3942.81,509.619C3947.09,513.98 3950.89,518.816 3953.85,524.232C3958.2,532.197 3960.96,541.186 3961.32,550.868C3961.61,558.748 3960.46,566.345 3957.88,573.322C3956.09,578.169 3953.7,582.753 3950.66,586.838C3947.22,591.461 3942.96,595.427 3938.27,598.769C3933.66,602.055 3928.53,604.619 3923.09,606.478C3922.37,606.721 3921.6,606.805 3920.93,607.167C3920.42,607.448 3920.14,607.854 3919.69,608.224L3920.37,610.389C3920.98,610.432 3921.47,610.573 3922.07,610.474C3922.86,610.344 3923.55,609.883 3924.28,609.566C3931.99,606.216 3938.82,601.355 3944.57,595.428C3947.02,592.903 3949.25,590.174 3951.31,587.319C3953.59,584.168 3955.66,580.853 3957.43,577.348C3961.47,569.34 3964.01,560.422 3964.36,550.868C3964.74,540.511 3962.66,530.628 3958.48,521.868C3955.57,515.775 3951.72,510.163 3946.95,505.478C3943.37,501.962 3939.26,498.99 3934.84,496.562C3926.88,492.192 3917.87,489.76 3908.37,489.229C3906.12,489.104 3903.86,489.054 3901.56,489.154C3896.87,489.06 3892.3,489.519 3887.89,490.397C3883.3,491.309 3878.89,492.683 3874.71,494.525L3875.69,496.573Z" style="fill:rgb(0,144,221);"/>
+											<path d="M3875.69,496.573C3879.62,494.538 3883.8,492.897 3888.2,491.786C3892.49,490.704 3896.96,490.124 3901.56,490.032C3903.82,490.13 3906.03,490.332 3908.21,490.688C3917.13,492.147 3925.19,495.814 3932.31,500.683C3936.13,503.294 3939.59,506.335 3942.81,509.619C3947.09,513.98 3950.89,518.816 3953.85,524.232C3958.2,532.197 3960.96,541.186 3961.32,550.868C3961.61,558.748 3960.46,566.345 3957.88,573.322C3956.09,578.169 3953.7,582.753 3950.66,586.838C3947.22,591.461 3942.96,595.427 3938.27,598.769C3933.66,602.055 3928.53,604.619 3923.09,606.478C3922.37,606.721 3921.6,606.805 3920.93,607.167C3920.42,607.448 3920.14,607.854 3919.69,608.224L3920.37,610.389C3920.98,610.432 3921.47,610.573 3922.07,610.474C3922.86,610.344 3923.55,609.883 3924.28,609.566C3931.99,606.216 3938.82,601.355 3944.57,595.428C3947.02,592.903 3949.25,590.174 3951.31,587.319C3953.59,584.168 3955.66,580.853 3957.43,577.348C3961.47,569.34 3964.01,560.422 3964.36,550.868C3964.74,540.511 3962.66,530.628 3958.48,521.868C3955.57,515.775 3951.72,510.163 3946.95,505.478C3943.37,501.962 3939.26,498.99 3934.84,496.562C3926.88,492.192 3917.87,489.76 3908.37,489.229C3906.12,489.104 3903.86,489.054 3901.56,489.154C3896.87,489.06 3892.3,489.519 3887.89,490.397C3883.3,491.309 3878.89,492.683 3874.71,494.525L3875.69,496.573Z" fill="rgb(0,144,221)"/>
 										</g>
 									</g>
 									<g>
 										<g transform="matrix(-3.37109,-0.514565,0.514565,-3.37109,4078.07,1806.88)">
-											<path d="M22,12C22,10.903 21.097,10 20,10C19.421,10 18.897,10.251 18.53,10.649C18.202,11.006 18,11.481 18,12C18,13.097 18.903,14 20,14C21.097,14 22,13.097 22,12Z" style="fill:none;fill-rule:nonzero;stroke:rgb(0,144,221);stroke-width:1.05px;"/>
+											<path d="M22,12C22,10.903 21.097,10 20,10C19.421,10 18.897,10.251 18.53,10.649C18.202,11.006 18,11.481 18,12C18,13.097 18.903,14 20,14C21.097,14 22,13.097 22,12Z" fill="none" fill-rule="nonzero" stroke="rgb(0,144,221)" stroke-width="1.05px"/>
 										</g>
 										<g transform="matrix(-5.33921,-5.26159,-3.12106,-6.96393,4073.87,1861.55)">
-											<path d="M10.315,5.333C10.315,5.333 9.748,5.921 9.03,6.673C7.768,7.995 6.054,9.805 6.054,9.805L6.237,9.86C6.237,9.86 8.045,8.077 9.36,6.771C10.107,6.028 10.689,5.444 10.689,5.444L10.315,5.333Z" style="fill:rgb(0,144,221);"/>
+											<path d="M10.315,5.333C10.315,5.333 9.748,5.921 9.03,6.673C7.768,7.995 6.054,9.805 6.054,9.805L6.237,9.86C6.237,9.86 8.045,8.077 9.36,6.771C10.107,6.028 10.689,5.444 10.689,5.444L10.315,5.333Z" fill="rgb(0,144,221)"/>
 										</g>
 									</g>
 									<g id="Padlock" transform="matrix(3.11426,0,0,3.11426,3938.31,1737.25)">
 										<g>
-											<path d="M9.876,21L18.162,21C18.625,21 19,20.625 19,20.162L19,11.838C19,11.375 18.625,11 18.162,11L5.838,11C5.375,11 5,11.375 5,11.838L5,16.758" style="fill:none;stroke:rgb(34,182,56);stroke-width:1.89px;stroke-linecap:butt;stroke-linejoin:miter;"/>
+											<path d="M9.876,21L18.162,21C18.625,21 19,20.625 19,20.162L19,11.838C19,11.375 18.625,11 18.162,11L5.838,11C5.375,11 5,11.375 5,11.838L5,16.758" fill="none" stroke="rgb(34,182,56)" stroke-width="1.89px" stroke-linecap="butt" stroke-linejoin="miter"/>
-											<path d="M8,11L8,7C8,4.806 9.806,3 12,3C14.194,3 16,4.806 16,7L16,11" style="fill:none;fill-rule:nonzero;stroke:rgb(34,182,56);stroke-width:1.89px;"/>
+											<path d="M8,11L8,7C8,4.806 9.806,3 12,3C14.194,3 16,4.806 16,7L16,11" fill="none" fill-rule="nonzero" stroke="rgb(34,182,56)" stroke-width="1.89px"/>
 										</g>
 									</g>
 									<g>
 										<g transform="matrix(5.30977,0.697415,-0.697415,5.30977,3852.72,1727.97)">
-											<path d="M22,12C22,11.659 21.913,11.337 21.76,11.055C21.421,10.429 20.756,10 20,10C18.903,10 18,10.903 18,12C18,13.097 18.903,14 20,14C21.097,14 22,13.097 22,12Z" style="fill:none;fill-rule:nonzero;stroke:rgb(0,144,221);stroke-width:0.98px;"/>
+											<path d="M22,12C22,11.659 21.913,11.337 21.76,11.055C21.421,10.429 20.756,10 20,10C18.903,10 18,10.903 18,12C18,13.097 18.903,14 20,14C21.097,14 22,13.097 22,12Z" fill="none" fill-rule="nonzero" stroke="rgb(0,144,221)" stroke-width="0.98px"/>
 										</g>
 										<g transform="matrix(4.93114,2.49604,1.11018,5.44847,3921.41,1726.72)">
-											<path d="M8.902,6.77C8.902,6.77 7.235,8.253 6.027,9.366C5.343,9.996 4.819,10.502 4.819,10.502L5.52,11.164C5.52,11.164 6.021,10.637 6.646,9.951C7.749,8.739 9.219,7.068 9.219,7.068L8.902,6.77Z" style="fill:rgb(0,144,221);"/>
+											<path d="M8.902,6.77C8.902,6.77 7.235,8.253 6.027,9.366C5.343,9.996 4.819,10.502 4.819,10.502L5.52,11.164C5.52,11.164 6.021,10.637 6.646,9.951C7.749,8.739 9.219,7.068 9.219,7.068L8.902,6.77Z" fill="rgb(0,144,221)"/>
 										</g>
 									</g>
 								</g>
 								<g id="Text">
 									<g id="Wordmark" transform="matrix(1.32271,0,0,2.60848,-899.259,-791.691)">
 										<g id="y" transform="matrix(0.50291,0,0,0.281607,905.533,304.987)">
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+											<circle cx="3866.43" cy="1926.14" r="8.923" fill="none" stroke="rgb(46,46,46)" stroke-width="2px" stroke-linecap="butt" stroke-linejoin="miter"/>
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@@ -1074,7 +1085,7 @@ footer {
 			</a>
 		</footer>
 
-		<script>
+		<script {{ $nonceAttribute }}>
 			const filterEl = document.getElementById('filter');
 			filterEl?.focus({ preventScroll: true });
 
@@ -1120,6 +1131,20 @@ footer {
 				});
 			}
 
+			const filterElem = document.getElementById("filter");
+			if (filterElem) {
+				filterElem.addEventListener("keyup", filter);
+			}
+
+			document.getElementById("layout-list").addEventListener("click", function() {
+				queryParam('layout', '');
+			});
+			document.getElementById("layout-grid").addEventListener("click", function() {
+				queryParam('layout', 'grid');
+			});
+
+			window.addEventListener("load", initPage);
+
 			function queryParam(k, v) {
 				const qs = new URLSearchParams(window.location.search);
 				if (!v) {

modules/caddyhttp/fileserver/browsetplcontext.go

@@ -21,6 +21,7 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
@@ -28,12 +29,13 @@ import (
 
 	"github.com/dustin/go-humanize"
 	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
-func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS, entries []fs.DirEntry, canGoUp bool, root, urlPath string, repl *caddy.Replacer) *browseTemplateContext {
+func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS, parentModTime time.Time, entries []fs.DirEntry, canGoUp bool, root, urlPath string, repl *caddy.Replacer) *browseTemplateContext {
 	filesToHide := fsrv.transformHidePaths(repl)
 
 	name, _ := url.PathUnescape(urlPath)
@@ -42,6 +44,7 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 		Name:         path.Base(name),
 		Path:         urlPath,
 		CanGoUp:      canGoUp,
+		lastModified: parentModTime,
 	}
 
 	for _, entry := range entries {
@@ -57,9 +60,9 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 
 		info, err := entry.Info()
 		if err != nil {
-			fsrv.logger.Error("could not get info about directory entry",
+			if c := fsrv.logger.Check(zapcore.ErrorLevel, "could not get info about directory entry"); c != nil {
-				zap.String("name", entry.Name()),
+				c.Write(zap.String("name", entry.Name()), zap.String("root", root))
-				zap.String("root", root))
+			}
 			continue
 		}
 
@@ -80,6 +83,13 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 		}
 
 		size := info.Size()
+
+		if !isDir {
+			// increase the total by the symlink's size, not the target's size,
+			// by incrementing before we follow the symlink
+			tplCtx.TotalFileSize += size
+		}
+
 		fileIsSymlink := isSymlink(info)
 		symlinkPath := ""
 		if fileIsSymlink {
@@ -103,7 +113,8 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 		}
 
 		if !isDir {
-			tplCtx.TotalFileSize += size
+			// increase the total including the symlink target's size
+			tplCtx.TotalFileSizeFollowingSymlinks += size
 		}
 
 		u := url.URL{Path: "./" + name} // prepend with "./" to fix paths with ':' in the name
@@ -121,6 +132,10 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 		})
 	}
 
+	// this time is used for the Last-Modified header and comparing If-Modified-Since from client
+	// both are expected to be in UTC, so we convert to UTC here
+	// see: https://github.com/caddyserver/caddy/issues/6828
+	tplCtx.lastModified = tplCtx.lastModified.UTC()
 	return tplCtx
 }
 
@@ -150,9 +165,15 @@ type browseTemplateContext struct {
 	// The number of files (items that aren't directories) in the listing.
 	NumFiles int `json:"num_files"`
 
-	// The total size of all files in the listing.
+	// The total size of all files in the listing. Only includes the
+	// size of the files themselves, not the size of symlink targets
+	// (i.e. the calculation of this value does not follow symlinks).
 	TotalFileSize int64 `json:"total_file_size"`
 
+	// The total size of all files in the listing, including the
+	// size of the files targeted by symlinks.
+	TotalFileSizeFollowingSymlinks int64 `json:"total_file_size_following_symlinks"`
+
 	// Sort column used
 	Sort string `json:"sort,omitempty"`
 
@@ -266,12 +287,9 @@ type fileInfo struct {
 
 // HasExt returns true if the filename has any of the given suffixes, case-insensitive.
 func (fi fileInfo) HasExt(exts ...string) bool {
-	for _, ext := range exts {
+	return slices.ContainsFunc(exts, func(ext string) bool {
-		if strings.HasSuffix(strings.ToLower(fi.Name), strings.ToLower(ext)) {
+		return strings.HasSuffix(strings.ToLower(fi.Name), strings.ToLower(ext))
-			return true
+	})
-		}
-	}
-	return false
 }
 
 // HumanSize returns the size of the file as a
@@ -288,6 +306,12 @@ func (btc browseTemplateContext) HumanTotalFileSize() string {
 	return humanize.IBytes(uint64(btc.TotalFileSize))
 }
 
+// HumanTotalFileSizeFollowingSymlinks is the same as HumanTotalFileSize
+// except the returned value reflects the size of symlink targets.
+func (btc browseTemplateContext) HumanTotalFileSizeFollowingSymlinks() string {
+	return humanize.IBytes(uint64(btc.TotalFileSizeFollowingSymlinks))
+}
+
 // HumanModTime returns the modified time of the file
 // as a human-readable string given by format.
 func (fi fileInfo) HumanModTime(format string) string {
@@ -353,4 +377,7 @@ const (
 	sortByNameDirFirst = "namedirfirst"
 	sortBySize         = "size"
 	sortByTime         = "time"
+
+	sortOrderAsc  = "asc"
+	sortOrderDesc = "desc"
 )

modules/caddyhttp/fileserver/caddyfile.go

@@ -16,6 +16,7 @@ package fileserver
 
 import (
 	"path/filepath"
+	"strconv"
 	"strings"
 
 	"github.com/caddyserver/caddy/v2"
@@ -78,7 +79,7 @@ func (fsrv *FileServer) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 		return d.ArgErr()
 	}
 
-	for d.NextBlock(0) {
+	for nesting := d.Nesting(); d.NextBlock(nesting); {
 		switch d.Val() {
 		case "fs":
 			if !d.NextArg() {
@@ -119,15 +120,39 @@ func (fsrv *FileServer) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 						return d.Err("Symlinks path reveal is already enabled")
 					}
 					fsrv.Browse.RevealSymlinks = true
+				case "sort":
+					for d.NextArg() {
+						dVal := d.Val()
+						switch dVal {
+						case sortByName, sortByNameDirFirst, sortBySize, sortByTime, sortOrderAsc, sortOrderDesc:
+							fsrv.Browse.SortOptions = append(fsrv.Browse.SortOptions, dVal)
+						default:
+							return d.Errf("unknown sort option '%s'", dVal)
+						}
+					}
+				case "file_limit":
+					fileLimit := d.RemainingArgs()
+					if len(fileLimit) != 1 {
+						return d.Err("file_limit should have an integer value")
+					}
+					val, _ := strconv.Atoi(fileLimit[0])
+					if fsrv.Browse.FileLimit != 0 {
+						return d.Err("file_limit is already enabled")
+					}
+					fsrv.Browse.FileLimit = val
 				default:
 					return d.Errf("unknown subdirective '%s'", d.Val())
 				}
 			}
 
 		case "precompressed":
-			var order []string
+			fsrv.PrecompressedOrder = d.RemainingArgs()
-			for d.NextArg() {
+			if len(fsrv.PrecompressedOrder) == 0 {
-				modID := "http.precompressed." + d.Val()
+				fsrv.PrecompressedOrder = []string{"br", "zstd", "gzip"}
+			}
+
+			for _, format := range fsrv.PrecompressedOrder {
+				modID := "http.precompressed." + format
 				mod, err := caddy.GetModule(modID)
 				if err != nil {
 					return d.Errf("getting module named '%s': %v", modID, err)
@@ -140,10 +165,8 @@ func (fsrv *FileServer) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 				if fsrv.PrecompressedRaw == nil {
 					fsrv.PrecompressedRaw = make(caddy.ModuleMap)
 				}
-				fsrv.PrecompressedRaw[d.Val()] = caddyconfig.JSON(precompress, nil)
+				fsrv.PrecompressedRaw[format] = caddyconfig.JSON(precompress, nil)
-				order = append(order, d.Val())
 			}
-			fsrv.PrecompressedOrder = order
 
 		case "status":
 			if !d.NextArg() {
@@ -253,7 +276,7 @@ func parseTryFiles(h httpcaddyfile.Helper) ([]httpcaddyfile.ConfigValue, error)
 			tryPolicy = h.Val()
 
 			switch tryPolicy {
-			case tryPolicyFirstExist, tryPolicyLargestSize, tryPolicySmallestSize, tryPolicyMostRecentlyMod:
+			case tryPolicyFirstExist, tryPolicyFirstExistFallback, tryPolicyLargestSize, tryPolicySmallestSize, tryPolicyMostRecentlyMod:
 			default:
 				return nil, h.Errf("unrecognized try policy: %s", tryPolicy)
 			}

modules/caddyhttp/fileserver/command.go

@@ -66,6 +66,7 @@ respond with a file listing.`,
 			cmd.Flags().BoolP("templates", "t", false, "Enable template rendering")
 			cmd.Flags().BoolP("access-log", "a", false, "Enable the access log")
 			cmd.Flags().BoolP("debug", "v", false, "Enable verbose debug logs")
+			cmd.Flags().IntP("file-limit", "f", defaultDirEntryLimit, "Max directories to read")
 			cmd.Flags().BoolP("no-compress", "", false, "Disable Zstandard and Gzip compression")
 			cmd.Flags().StringSliceP("precompressed", "p", []string{}, "Specify precompression file extensions. Compression preference implied from flag order.")
 			cmd.RunE = caddycmd.WrapCommandFuncForCobra(cmdFileServer)
@@ -91,6 +92,7 @@ func cmdFileServer(fs caddycmd.Flags) (int, error) {
 	browse := fs.Bool("browse")
 	templates := fs.Bool("templates")
 	accessLog := fs.Bool("access-log")
+	fileLimit := fs.Int("file-limit")
 	debug := fs.Bool("debug")
 	revealSymlinks := fs.Bool("reveal-symlinks")
 	compress := !fs.Bool("no-compress")
@@ -151,7 +153,7 @@ func cmdFileServer(fs caddycmd.Flags) (int, error) {
 	}
 
 	if browse {
-		handler.Browse = &Browse{RevealSymlinks: revealSymlinks}
+		handler.Browse = &Browse{RevealSymlinks: revealSymlinks, FileLimit: fileLimit}
 	}
 
 	handlers = append(handlers, caddyconfig.JSONModuleObject(handler, "handler", "file_server", nil))