cmd: fix auto-detetction of .caddyfile extension (#6356)

* cmd: fix auto-detetction of .caddyfile extension

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

* move conditions around and add clarifying comment

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

* reject ambiguous config file name

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

---------

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

.editorconfig

@@ -1,5 +1,5 @@
 [*]
 end_of_line = lf
 
-[caddytest/integration/caddyfile_adapt/*.txt]
+[caddytest/integration/caddyfile_adapt/*.caddyfiletest]
 indent_style = tab

.github/CONTRIBUTING.md

@@ -25,7 +25,7 @@ Other menu items:
 
 You can have a huge impact on the project by helping with its code. To contribute code to Caddy, first submit or comment in an issue to discuss your contribution, then open a [pull request](https://github.com/caddyserver/caddy/pulls) (PR). If you're new to our community, that's okay: **we gladly welcome pull requests from anyone, regardless of your native language or coding experience.** You can get familiar with Caddy's code base by using [code search at Sourcegraph](https://sourcegraph.com/github.com/caddyserver/caddy).
 
-We hold contributions to a high standard for quality :bowtie:, so don't be surprised if we ask for revisions—even if it seems small or insignificant. Please don't take it personally. :blue_heart: If your change is on the right track, we can guide you to make it mergable.
+We hold contributions to a high standard for quality :bowtie:, so don't be surprised if we ask for revisions—even if it seems small or insignificant. Please don't take it personally. :blue_heart: If your change is on the right track, we can guide you to make it mergeable.
 
 Here are some of the expectations we have of contributors:
 

.github/workflows/ci.yml

@@ -19,45 +19,49 @@ jobs:
       fail-fast: false
       matrix:
         os: 
-          - ubuntu-latest
-          - macos-latest
-          - windows-latest
+          - linux
+          - mac
+          - windows
         go: 
-          - '1.20'
           - '1.21'
+          - '1.22'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.20'
-          GO_SEMVER: '~1.20.6'
-
         - go: '1.21'
           GO_SEMVER: '~1.21.0'
 
+        - 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)
         # CADDY_BIN_PATH: the path to the compiled Caddy binary, for artifact publishing
         # SUCCESS: the typical value for $? per OS (Windows/pwsh returns 'True')
-        - os: ubuntu-latest
+        - os: linux
+          OS_LABEL: ubuntu-latest
           CADDY_BIN_PATH: ./cmd/caddy/caddy
           SUCCESS: 0
 
-        - os: macos-latest
+        - os: mac
+          OS_LABEL: macos-14
           CADDY_BIN_PATH: ./cmd/caddy/caddy
           SUCCESS: 0
 
-        - os: windows-latest
+        - os: windows
+          OS_LABEL: windows-latest
           CADDY_BIN_PATH: ./cmd/caddy/caddy.exe
           SUCCESS: 'True'
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.OS_LABEL }}
 
     steps:
     - name: Checkout code
       uses: actions/checkout@v4
 
     - name: Install Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@v5
       with:
         go-version: ${{ matrix.GO_SEMVER }}
         check-latest: true
@@ -95,13 +99,20 @@ jobs:
       env:
         CGO_ENABLED: 0
       run: |
-        go build -trimpath -ldflags="-w -s" -v
+        go build -tags nobdger -trimpath -ldflags="-w -s" -v
+
+    - name: Smoke test Caddy
+      working-directory: ./cmd/caddy
+      run: |
+        ./caddy start
+        ./caddy stop
 
     - name: Publish Build Artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: caddy_${{ runner.os }}_go${{ matrix.go }}_${{ steps.vars.outputs.short_sha }}
         path: ${{ matrix.CADDY_BIN_PATH }}
+        compression-level: 0
 
     # Commented bits below were useful to allow the job to continue
     # even if the tests fail, so we can publish the report separately
@@ -111,7 +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 -v -coverprofile="cover-profile.out" -short -race ./...
+        go test -tags nobadger -v -coverprofile="cover-profile.out" -short -race ./...
         # echo "status=$?" >> $GITHUB_OUTPUT
 
     # Relevant step if we reinvestigate publishing test/coverage reports
@@ -124,7 +135,7 @@ jobs:
 
     # To return the correct result even though we set 'continue-on-error: true'
     # - name: Coerce correct build result
-    #   if: matrix.os != 'windows-latest' && steps.step_test.outputs.status != ${{ matrix.SUCCESS }}
+    #   if: matrix.os != 'windows' && steps.step_test.outputs.status != ${{ matrix.SUCCESS }}
     #   run: |
     #     echo "step_test ${{ steps.step_test.outputs.status }}\n"
     #     exit 1
@@ -146,7 +157,7 @@ jobs:
 
           # 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"
-          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 -v ./..."
+          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 ./..."
           test_result=$?
 
           # There's no need leaving the files around
@@ -168,5 +179,3 @@ jobs:
         with:
           version: latest
           args: check
-        env:
-          TAG: ${{ steps.vars.outputs.version_tag }}

.github/workflows/cross-build.yml

@@ -11,30 +11,29 @@ on:
       - 2.*
 
 jobs:
-  cross-build-test:
+  build:
     strategy:
       fail-fast: false
       matrix:
         goos: 
-          - 'android'
+          - 'aix'
           - 'linux'
           - 'solaris'
           - 'illumos'
           - 'dragonfly'
           - 'freebsd'
           - 'openbsd'
-          - 'plan9'
           - 'windows'
           - 'darwin'
           - 'netbsd'
         go: 
-          - '1.21'
+          - '1.22'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.21'
-          GO_SEMVER: '~1.21.0'
+        - go: '1.22'
+          GO_SEMVER: '~1.22.3'
 
     runs-on: ubuntu-latest
     continue-on-error: true
@@ -43,7 +42,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.GO_SEMVER }}
           check-latest: true
@@ -62,12 +61,9 @@ jobs:
         env:
           CGO_ENABLED: 0
           GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goos == 'aix' && 'ppc64' || 'amd64' }}
         shell: bash
         continue-on-error: true
         working-directory: ./cmd/caddy
         run: |
-          GOOS=$GOOS go build -trimpath -o caddy-"$GOOS"-amd64 2> /dev/null
-          if [ $? -ne 0 ]; then
-            echo "::warning ::$GOOS Build Failed"
-            exit 0
-          fi
+          GOOS=$GOOS GOARCH=$GOARCH go build -tags nobadger -trimpath -o caddy-"$GOOS"-$GOARCH 2> /dev/null

.github/workflows/lint.yml

@@ -23,27 +23,33 @@ jobs:
     strategy:
       matrix:
         os:
-          - ubuntu-latest
-          - macos-latest
-          - windows-latest
-    runs-on: ${{ matrix.os }}
+          - linux
+          - mac
+          - windows
+
+        include:
+        - os: linux
+          OS_LABEL: ubuntu-latest
+
+        - os: mac
+          OS_LABEL: macos-14
+
+        - os: windows
+          OS_LABEL: windows-latest
+
+    runs-on: ${{ matrix.OS_LABEL }}
+
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v4
+      - uses: actions/setup-go@v5
         with:
-          go-version: '~1.21.0'
+          go-version: '~1.22.3'
           check-latest: true
 
-          # Workaround for https://github.com/golangci/golangci-lint-action/issues/135
-          skip-pkg-cache: true
-
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v6
         with:
-          version: v1.54
-
-          # Workaround for https://github.com/golangci/golangci-lint-action/issues/135
-          skip-pkg-cache: true
+          version: v1.55
 
           # Windows times out frequently after about 5m50s if we don't set a longer timeout.
           args: --timeout 10m
@@ -57,5 +63,5 @@ jobs:
       - name: govulncheck
         uses: golang/govulncheck-action@v1
         with:
-          go-version-input: '~1.21.0'
+          go-version-input: '~1.22.3'
           check-latest: true

.github/workflows/release.yml

@@ -13,13 +13,13 @@ jobs:
         os: 
           - ubuntu-latest
         go: 
-          - '1.21'
+          - '1.22'
 
         include:
         # Set the minimum Go patch version for the given Go minor
         # Usable via ${{ matrix.GO_SEMVER }}
-        - go: '1.21'
-          GO_SEMVER: '~1.21.0'
+        - go: '1.22'
+          GO_SEMVER: '~1.22.3'
 
     runs-on: ${{ matrix.os }}
     # https://github.com/sigstore/cosign/issues/1258#issuecomment-1002251233
@@ -37,7 +37,7 @@ jobs:
         fetch-depth: 0
 
     - name: Install Go
-      uses: actions/setup-go@v4
+      uses: actions/setup-go@v5
       with:
         go-version: ${{ matrix.GO_SEMVER }}
         check-latest: true

.github/workflows/release_published.yml

@@ -18,7 +18,7 @@ jobs:
 
     # See https://github.com/peter-evans/repository-dispatch
     - name: Trigger event on caddyserver/dist
-      uses: peter-evans/repository-dispatch@v2
+      uses: peter-evans/repository-dispatch@v3
       with:
         token: ${{ secrets.REPO_DISPATCH_TOKEN }}
         repository: caddyserver/dist
@@ -26,7 +26,7 @@ jobs:
         client-payload: '{"tag": "${{ github.event.release.tag_name }}"}'
 
     - name: Trigger event on caddyserver/caddy-docker
-      uses: peter-evans/repository-dispatch@v2
+      uses: peter-evans/repository-dispatch@v3
       with:
         token: ${{ secrets.REPO_DISPATCH_TOKEN }}
         repository: caddyserver/caddy-docker

.gitignore

@@ -3,6 +3,7 @@ _gitignore/
 Caddyfile
 Caddyfile.*
 !caddyfile/
+!caddyfile.go
 
 # artifacts from pprof tooling
 *.prof

.golangci.yml

@@ -15,35 +15,68 @@ linters-settings:
     # If `true`, make the section order the same as the order of `sections`.
     # Default: false
     custom-order: true
+  exhaustive:
+    ignore-enum-types: reflect.Kind|svc.Cmd
 
 linters:
   disable-all: true
   enable:
+    - asasalint
+    - asciicheck
+    - bidichk
     - bodyclose
+    - decorder
+    - dogsled
+    - dupl
+    - dupword
+    - durationcheck
     - errcheck
+    - errname
+    - exhaustive
+    - exportloopref
     - gci
+    - gofmt
+    - goimports
     - gofumpt
     - gosec
     - gosimple
     - govet
     - ineffassign
+    - importas
     - misspell
     - prealloc
+    - promlinter
+    - sloglint
+    - sqlclosecheck
     - staticcheck
+    - tenv
+    - testableexamples
+    - testifylint
+    - tparallel
     - typecheck
     - unconvert
     - unused
+    - wastedassign
+    - whitespace
+    - zerologlint
   # these are implicitly disabled:
-  # - asciicheck
+  # - containedctx
+  # - contextcheck
+  # - cyclop
   # - depguard
-  # - dogsled
-  # - dupl
-  # - exhaustive
-  # - exportloopref
+  # - errchkjson
+  # - errorlint
+  # - exhaustruct
+  # - execinquery
+  # - exhaustruct
+  # - forbidigo
+  # - forcetypeassert
   # - funlen
-  # - gci
+  # - ginkgolinter
+  # - gocheckcompilerdirectives
   # - gochecknoglobals
   # - gochecknoinits
+  # - gochecksumtype
   # - gocognit
   # - goconst
   # - gocritic
@@ -51,27 +84,47 @@ linters:
   # - godot
   # - godox
   # - goerr113
-  # - gofumpt
   # - goheader
-  # - golint
   # - gomnd
+  # - gomoddirectives
   # - gomodguard
   # - goprintffuncname
-  # - interfacer
+  # - gosmopolitan
+  # - grouper
+  # - inamedparam
+  # - interfacebloat
+  # - ireturn
   # - lll
-  # - maligned
+  # - loggercheck
+  # - maintidx
+  # - makezero
+  # - mirror
+  # - musttag
   # - nakedret
   # - nestif
+  # - nilerr
+  # - nilnil
   # - nlreturn
   # - noctx
   # - nolintlint
+  # - nonamedreturns
+  # - nosprintfhostport
+  # - paralleltest
+  # - perfsprint
+  # - predeclared
+  # - protogetter
+  # - reassign
+  # - revive
   # - rowserrcheck
-  # - scopelint
-  # - sqlclosecheck
   # - stylecheck
+  # - tagalign
+  # - tagliatelle
   # - testpackage
+  # - thelper
   # - unparam
-  # - whitespace
+  # - usestdlibvars
+  # - varnamelen
+  # - wrapcheck
   # - wsl
 
 run:
@@ -110,3 +163,6 @@ issues:
       text: 'G404' # G404: Insecure random number source (rand)
       linters:
         - gosec
+    - path: modules/logging/filters.go
+      linters:
+        - dupl

.goreleaser.yml

@@ -77,6 +77,8 @@ builds:
   - -mod=readonly
   ldflags:
   - -s -w
+  tags:
+  - nobadger
 
 signs:
   - cmd: cosign

README.md

@@ -56,7 +56,7 @@
 </p>
 
 
-## [Features](https://caddyserver.com/v2)
+## [Features](https://caddyserver.com/features)
 
 - **Easy configuration** with the [Caddyfile](https://caddyserver.com/docs/caddyfile)
 - **Powerful configuration** with its [native JSON config](https://caddyserver.com/docs/json/)
@@ -75,7 +75,7 @@
 - **Runs anywhere** with **no external dependencies** (not even libc)
 - Written in Go, a language with higher **memory safety guarantees** than other servers
 - Actually **fun to use**
-- So much more to [discover](https://caddyserver.com/v2)
+- So much more to [discover](https://caddyserver.com/features)
 
 ## Install
 
@@ -87,7 +87,7 @@ See [our online documentation](https://caddyserver.com/docs/install) for other i
 
 Requirements:
 
-- [Go 1.20 or newer](https://golang.org/dl/)
+- [Go 1.21 or newer](https://golang.org/dl/)
 
 ### For development
 

admin.go

@@ -26,7 +26,6 @@ import (
 	"expvar"
 	"fmt"
 	"hash"
-	"hash/fnv"
 	"io"
 	"net"
 	"net/http"
@@ -41,13 +40,14 @@ import (
 	"time"
 
 	"github.com/caddyserver/certmagic"
+	"github.com/cespare/xxhash/v2"
 	"github.com/prometheus/client_golang/prometheus"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 )
 
 func init() {
-	// The hard-coded default `DefaultAdminListen` can be overidden
+	// The hard-coded default `DefaultAdminListen` can be overridden
 	// by setting the `CADDY_ADMIN` environment variable.
 	// The environment variable may be used by packagers to change
 	// the default admin address to something more appropriate for
@@ -474,7 +474,6 @@ func manageIdentity(ctx Context, cfg *Config) error {
 	// import the caddytls package -- but it works
 	if cfg.Admin.Identity.IssuersRaw == nil {
 		cfg.Admin.Identity.IssuersRaw = []json.RawMessage{
-			json.RawMessage(`{"module": "zerossl"}`),
 			json.RawMessage(`{"module": "acme"}`),
 		}
 	}
@@ -946,7 +945,7 @@ func (h adminHandler) originAllowed(origin *url.URL) bool {
 
 // etagHasher returns a the hasher we used on the config to both
 // produce and verify ETags.
-func etagHasher() hash.Hash32 { return fnv.New32a() }
+func etagHasher() hash.Hash { return xxhash.New() }
 
 // makeEtag returns an Etag header value (including quotes) for
 // the given config path and hash of contents at that path.
@@ -954,17 +953,28 @@ func makeEtag(path string, hash hash.Hash) string {
 	return fmt.Sprintf(`"%s %x"`, path, hash.Sum(nil))
 }
 
+// This buffer pool is used to keep buffers for
+// reading the config file during eTag header generation
+var bufferPool = sync.Pool{
+	New: func() any {
+		return new(bytes.Buffer)
+	},
+}
+
 func handleConfig(w http.ResponseWriter, r *http.Request) error {
 	switch r.Method {
 	case http.MethodGet:
 		w.Header().Set("Content-Type", "application/json")
-		// Set the ETag as a trailer header.
-		// The alternative is to write the config to a buffer, and
-		// then hash that.
-		w.Header().Set("Trailer", "ETag")
-
 		hash := etagHasher()
-		configWriter := io.MultiWriter(w, hash)
+
+		// Read the config into a buffer instead of writing directly to
+		// the response writer, as we want to set the ETag as the header,
+		// not the trailer.
+		buf := bufferPool.Get().(*bytes.Buffer)
+		buf.Reset()
+		defer bufferPool.Put(buf)
+
+		configWriter := io.MultiWriter(buf, hash)
 		err := readConfig(r.URL.Path, configWriter)
 		if err != nil {
 			return APIError{HTTPStatus: http.StatusBadRequest, Err: err}
@@ -973,6 +983,10 @@ func handleConfig(w http.ResponseWriter, r *http.Request) error {
 		// we could consider setting up a sync.Pool for the summed
 		// hashes to reduce GC pressure.
 		w.Header().Set("Etag", makeEtag(r.URL.Path, hash))
+		_, err = w.Write(buf.Bytes())
+		if err != nil {
+			return APIError{HTTPStatus: http.StatusInternalServerError, Err: err}
+		}
 
 		return nil
 

caddy.go

@@ -22,6 +22,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"log"
 	"net/http"
 	"os"
@@ -38,6 +39,7 @@ import (
 	"github.com/google/uuid"
 	"go.uber.org/zap"
 
+	"github.com/caddyserver/caddy/v2/internal/filesystems"
 	"github.com/caddyserver/caddy/v2/notify"
 )
 
@@ -83,6 +85,9 @@ type Config struct {
 	storage certmagic.Storage
 
 	cancelFunc context.CancelFunc
+
+	// filesystems is a dict of filesystems that will later be loaded from and added to.
+	filesystems FileSystems
 }
 
 // App is a thing that Caddy runs.
@@ -446,6 +451,9 @@ func run(newCfg *Config, start bool) (Context, error) {
 		}
 	}
 
+	// create the new filesystem map
+	newCfg.filesystems = &filesystems.FilesystemMap{}
+
 	// prepare the new config for use
 	newCfg.apps = make(map[string]App)
 
@@ -707,6 +715,7 @@ func exitProcess(ctx context.Context, logger *zap.Logger) {
 	logger.Warn("exiting; byeee!! 👋")
 
 	exitCode := ExitCodeSuccess
+	lastContext := ActiveContext()
 
 	// stop all apps
 	if err := Stop(); err != nil {
@@ -728,6 +737,16 @@ func exitProcess(ctx context.Context, logger *zap.Logger) {
 		}
 	}
 
+	// execute any process-exit callbacks
+	for _, exitFunc := range lastContext.exitFuncs {
+		exitFunc(ctx)
+	}
+	exitFuncsMu.Lock()
+	for _, exitFunc := range exitFuncs {
+		exitFunc(ctx)
+	}
+	exitFuncsMu.Unlock()
+
 	// shut down admin endpoint(s) in goroutines so that
 	// if this function was called from an admin handler,
 	// it has a chance to return gracefully
@@ -766,6 +785,23 @@ var exiting = new(int32) // accessed atomically
 // EXPERIMENTAL API: subject to change or removal.
 func Exiting() bool { return atomic.LoadInt32(exiting) == 1 }
 
+// OnExit registers a callback to invoke during process exit.
+// This registration is PROCESS-GLOBAL, meaning that each
+// function should only be registered once forever, NOT once
+// per config load (etc).
+//
+// EXPERIMENTAL API: subject to change or removal.
+func OnExit(f func(context.Context)) {
+	exitFuncsMu.Lock()
+	exitFuncs = append(exitFuncs, f)
+	exitFuncsMu.Unlock()
+}
+
+var (
+	exitFuncs   []func(context.Context)
+	exitFuncsMu sync.Mutex
+)
+
 // Duration can be an integer or a string. An integer is
 // interpreted as nanoseconds. If a string, it is a Go
 // time.Duration value such as `300ms`, `1.5h`, or `2h45m`;
@@ -825,13 +861,18 @@ func ParseDuration(s string) (time.Duration, error) {
 // regardless of storage configuration, since each instance is intended to
 // have its own unique ID.
 func InstanceID() (uuid.UUID, error) {
-	uuidFilePath := filepath.Join(AppDataDir(), "instance.uuid")
+	appDataDir := AppDataDir()
+	uuidFilePath := filepath.Join(appDataDir, "instance.uuid")
 	uuidFileBytes, err := os.ReadFile(uuidFilePath)
-	if os.IsNotExist(err) {
+	if errors.Is(err, fs.ErrNotExist) {
 		uuid, err := uuid.NewRandom()
 		if err != nil {
 			return uuid, err
 		}
+		err = os.MkdirAll(appDataDir, 0o700)
+		if err != nil {
+			return uuid, err
+		}
 		err = os.WriteFile(uuidFilePath, []byte(uuid.String()), 0o600)
 		return uuid, err
 	} else if err != nil {

caddyconfig/caddyfile/adapter.go

@@ -52,7 +52,7 @@ func (a Adapter) Adapt(body []byte, options map[string]any) ([]byte, []caddyconf
 		return nil, warnings, err
 	}
 
-	// lint check: see if input was properly formatted; sometimes messy files files parse
+	// lint check: see if input was properly formatted; sometimes messy files parse
 	// successfully but result in logical errors (the Caddyfile is a bad format, I'm sorry)
 	if warning, different := FormattingDifference(filename, body); different {
 		warnings = append(warnings, warning)
@@ -92,30 +92,26 @@ func FormattingDifference(filename string, body []byte) (caddyconfig.Warning, bo
 	}, true
 }
 
-// Unmarshaler is a type that can unmarshal
-// Caddyfile tokens to set itself up for a
-// JSON encoding. The goal of an unmarshaler
-// is not to set itself up for actual use,
-// but to set itself up for being marshaled
-// into JSON. Caddyfile-unmarshaled values
-// will not be used directly; they will be
-// encoded as JSON and then used from that.
-// Implementations must be able to support
-// multiple segments (instances of their
-// directive or batch of tokens); typically
-// this means wrapping all token logic in
-// a loop: `for d.Next() { ... }`.
+// Unmarshaler is a type that can unmarshal Caddyfile tokens to
+// set itself up for a JSON encoding. The goal of an unmarshaler
+// is not to set itself up for actual use, but to set itself up for
+// being marshaled into JSON. Caddyfile-unmarshaled values will not
+// be used directly; they will be encoded as JSON and then used from
+// that. Implementations _may_ be able to support multiple segments
+// (instances of their directive or batch of tokens); typically this
+// means wrapping parsing logic in a loop: `for d.Next() { ... }`.
+// More commonly, only a single segment is supported, so a simple
+// `d.Next()` at the start should be used to consume the module
+// identifier token (directive name, etc).
 type Unmarshaler interface {
 	UnmarshalCaddyfile(d *Dispenser) error
 }
 
 // ServerType is a type that can evaluate a Caddyfile and set up a caddy config.
 type ServerType interface {
-	// Setup takes the server blocks which
-	// contain tokens, as well as options
-	// (e.g. CLI flags) and creates a Caddy
-	// config, along with any warnings or
-	// an error.
+	// Setup takes the server blocks which contain tokens,
+	// as well as options (e.g. CLI flags) and creates a
+	// Caddy config, along with any warnings or an error.
 	Setup([]ServerBlock, map[string]any) (*caddy.Config, []caddyconfig.Warning, error)
 }
 

caddyconfig/caddyfile/dispenser.go

@@ -30,6 +30,10 @@ type Dispenser struct {
 	tokens  []Token
 	cursor  int
 	nesting int
+
+	// A map of arbitrary context data that can be used
+	// to pass through some information to unmarshalers.
+	context map[string]any
 }
 
 // NewDispenser returns a Dispenser filled with the given tokens.
@@ -454,6 +458,34 @@ func (d *Dispenser) DeleteN(amount int) []Token {
 	return d.tokens
 }
 
+// SetContext sets a key-value pair in the context map.
+func (d *Dispenser) SetContext(key string, value any) {
+	if d.context == nil {
+		d.context = make(map[string]any)
+	}
+	d.context[key] = value
+}
+
+// GetContext gets the value of a key in the context map.
+func (d *Dispenser) GetContext(key string) any {
+	if d.context == nil {
+		return nil
+	}
+	return d.context[key]
+}
+
+// GetContextString gets the value of a key in the context map
+// as a string, or an empty string if the key does not exist.
+func (d *Dispenser) GetContextString(key string) string {
+	if d.context == nil {
+		return ""
+	}
+	if val, ok := d.context[key].(string); ok {
+		return val
+	}
+	return ""
+}
+
 // isNewLine determines whether the current token is on a different
 // line (higher line number) than the previous token. It handles imported
 // tokens correctly. If there isn't a previous token, it returns true.
@@ -485,3 +517,5 @@ func (d *Dispenser) isNextOnNewLine() bool {
 	next := d.tokens[d.cursor+1]
 	return isNextOnNewLine(curr, next)
 }
+
+const MatcherNameCtxKey = "matcher_name"

caddyconfig/caddyfile/dispenser_test.go

@@ -305,7 +305,7 @@ func TestDispenser_ArgErr_Err(t *testing.T) {
 		t.Errorf("Expected error message with custom message in it ('foobar'); got '%v'", err)
 	}
 
-	var ErrBarIsFull = errors.New("bar is full")
+	ErrBarIsFull := errors.New("bar is full")
 	bookingError := d.Errf("unable to reserve: %w", ErrBarIsFull)
 	if !errors.Is(bookingError, ErrBarIsFull) {
 		t.Errorf("Errf(): should be able to unwrap the error chain")

caddyconfig/caddyfile/formatter.go

@@ -17,6 +17,7 @@ package caddyfile
 import (
 	"bytes"
 	"io"
+	"slices"
 	"unicode"
 )
 
@@ -31,6 +32,14 @@ func Format(input []byte) []byte {
 	out := new(bytes.Buffer)
 	rdr := bytes.NewReader(input)
 
+	type heredocState int
+
+	const (
+		heredocClosed  heredocState = 0
+		heredocOpening heredocState = 1
+		heredocOpened  heredocState = 2
+	)
+
 	var (
 		last rune // the last character that was written to the result
 
@@ -47,6 +56,11 @@ func Format(input []byte) []byte {
 		quoted  bool // whether we're in a quoted segment
 		escaped bool // whether current char is escaped
 
+		heredoc              heredocState // whether we're in a heredoc
+		heredocEscaped       bool         // whether heredoc is escaped
+		heredocMarker        []rune
+		heredocClosingMarker []rune
+
 		nesting int // indentation level
 	)
 
@@ -75,6 +89,62 @@ func Format(input []byte) []byte {
 			panic(err)
 		}
 
+		// detect whether we have the start of a heredoc
+		if !quoted && !(heredoc != heredocClosed || heredocEscaped) &&
+			space && last == '<' && ch == '<' {
+			write(ch)
+			heredoc = heredocOpening
+			space = false
+			continue
+		}
+
+		if heredoc == heredocOpening {
+			if ch == '\n' {
+				if len(heredocMarker) > 0 && heredocMarkerRegexp.MatchString(string(heredocMarker)) {
+					heredoc = heredocOpened
+				} else {
+					heredocMarker = nil
+					heredoc = heredocClosed
+					nextLine()
+					continue
+				}
+				write(ch)
+				continue
+			}
+			if unicode.IsSpace(ch) {
+				// a space means it's just a regular token and not a heredoc
+				heredocMarker = nil
+				heredoc = heredocClosed
+			} else {
+				heredocMarker = append(heredocMarker, ch)
+				write(ch)
+				continue
+			}
+		}
+		// if we're in a heredoc, all characters are read&write as-is
+		if heredoc == heredocOpened {
+			heredocClosingMarker = append(heredocClosingMarker, ch)
+			if len(heredocClosingMarker) > len(heredocMarker)+1 { // We assert that the heredocClosingMarker is followed by a unicode.Space
+				heredocClosingMarker = heredocClosingMarker[1:]
+			}
+			// check if we're done
+			if unicode.IsSpace(ch) && slices.Equal(heredocClosingMarker[:len(heredocClosingMarker)-1], heredocMarker) {
+				heredocMarker = nil
+				heredocClosingMarker = nil
+				heredoc = heredocClosed
+			} else {
+				write(ch)
+				if ch == '\n' {
+					heredocClosingMarker = heredocClosingMarker[:0]
+				}
+				continue
+			}
+		}
+
+		if last == '<' && space {
+			space = false
+		}
+
 		if comment {
 			if ch == '\n' {
 				comment = false
@@ -98,6 +168,9 @@ func Format(input []byte) []byte {
 		}
 
 		if escaped {
+			if ch == '<' {
+				heredocEscaped = true
+			}
 			write(ch)
 			escaped = false
 			continue
@@ -117,6 +190,7 @@ func Format(input []byte) []byte {
 
 		if unicode.IsSpace(ch) {
 			space = true
+			heredocEscaped = false
 			if ch == '\n' {
 				newLines++
 			}
@@ -205,6 +279,11 @@ func Format(input []byte) []byte {
 			write('{')
 			openBraceWritten = true
 		}
+
+		if spacePrior && ch == '<' {
+			space = true
+		}
+
 		write(ch)
 
 		beginningOfLine = false

caddyconfig/caddyfile/formatter_test.go

@@ -362,6 +362,76 @@ block {
 
 block {
 }
+`,
+		},
+		{
+			description: "keep heredoc as-is",
+			input: `block {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+}
+`,
+			expect: `block {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+}
+`,
+		},
+		{
+			description: "Mixing heredoc with regular part",
+			input: `block {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+	respond "More than one space will be eaten"     200
+}
+
+block2 {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+	respond "More than one space will be eaten" 200
+}
+`,
+			expect: `block {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+	respond "More than one space will be eaten" 200
+}
+
+block2 {
+	heredoc <<HEREDOC
+	Here's more than one space       Here's more than one space
+	HEREDOC
+	respond "More than one space will be eaten" 200
+}
+`,
+		},
+		{
+			description: "Heredoc as regular token",
+			input: `block {
+	heredoc <<HEREDOC                                 "More than one space will be eaten"
+}
+`,
+			expect: `block {
+	heredoc <<HEREDOC "More than one space will be eaten"
+}
+`,
+		},
+		{
+			description: "Escape heredoc",
+			input: `block {
+	heredoc \<<HEREDOC
+	respond "More than one space will be eaten"                           200
+}
+`,
+			expect: `block {
+	heredoc \<<HEREDOC
+	respond "More than one space will be eaten" 200
+}
 `,
 		},
 	} {

caddyconfig/caddyfile/importgraph.go

@@ -21,18 +21,18 @@ import (
 type adjacency map[string][]string
 
 type importGraph struct {
-	nodes map[string]bool
+	nodes map[string]struct{}
 	edges adjacency
 }
 
 func (i *importGraph) addNode(name string) {
 	if i.nodes == nil {
-		i.nodes = make(map[string]bool)
+		i.nodes = make(map[string]struct{})
 	}
 	if _, exists := i.nodes[name]; exists {
 		return
 	}
-	i.nodes[name] = true
+	i.nodes[name] = struct{}{}
 }
 
 func (i *importGraph) addNodes(names []string) {
@@ -66,7 +66,7 @@ func (i *importGraph) addEdge(from, to string) error {
 	}
 
 	if i.nodes == nil {
-		i.nodes = make(map[string]bool)
+		i.nodes = make(map[string]struct{})
 	}
 	if i.edges == nil {
 		i.edges = make(adjacency)

caddyconfig/caddyfile/lexer.go

@@ -186,7 +186,7 @@ func (l *lexer) next() (bool, error) {
 			}
 
 			// check if we're done, i.e. that the last few characters are the marker
-			if len(val) > len(heredocMarker) && heredocMarker == string(val[len(val)-len(heredocMarker):]) {
+			if len(val) >= len(heredocMarker) && heredocMarker == string(val[len(val)-len(heredocMarker):]) {
 				// set the final value
 				val, err = l.finalizeHeredoc(val, heredocMarker)
 				if err != nil {
@@ -313,6 +313,11 @@ func (l *lexer) finalizeHeredoc(val []rune, marker string) ([]rune, error) {
 	// iterate over each line and strip the whitespace from the front
 	var out string
 	for lineNum, lineText := range lines[:len(lines)-1] {
+		if lineText == "" || lineText == "\r" {
+			out += "\n"
+			continue
+		}
+
 		// find an exact match for the padding
 		index := strings.Index(lineText, paddingToStrip)
 
@@ -335,6 +340,8 @@ func (l *lexer) finalizeHeredoc(val []rune, marker string) ([]rune, error) {
 	return []rune(out), nil
 }
 
+// Quoted returns true if the token was enclosed in quotes
+// (i.e. double quotes, backticks, or heredoc).
 func (t Token) Quoted() bool {
 	return t.wasQuoted > 0
 }
@@ -351,6 +358,19 @@ func (t Token) NumLineBreaks() int {
 	return lineBreaks
 }
 
+// Clone returns a deep copy of the token.
+func (t Token) Clone() Token {
+	return Token{
+		File:          t.File,
+		imports:       append([]string{}, t.imports...),
+		Line:          t.Line,
+		Text:          t.Text,
+		wasQuoted:     t.wasQuoted,
+		heredocMarker: t.heredocMarker,
+		snippetName:   t.snippetName,
+	}
+}
+
 var heredocMarkerRegexp = regexp.MustCompile("^[A-Za-z0-9_-]+$")
 
 // isNextOnNewLine tests whether t2 is on a different line from t1

caddyconfig/caddyfile/lexer_test.go

@@ -285,6 +285,18 @@ EOF same-line-arg
 		},
 		{
 			input: []byte(`heredoc <<EOF
+EOF
+	HERE same-line-arg
+	`),
+			expected: []Token{
+				{Line: 1, Text: `heredoc`},
+				{Line: 1, Text: ``},
+				{Line: 3, Text: `HERE`},
+				{Line: 3, Text: `same-line-arg`},
+			},
+		},
+		{
+			input: []byte(`heredoc <<EOF
 		EOF same-line-arg
 	`),
 			expected: []Token{
@@ -445,6 +457,48 @@ EOF same-line-arg
 			expectErr:    true,
 			errorMessage: "mismatched leading whitespace in heredoc <<EOF on line #2 [        content], expected whitespace [\t\t] to match the closing marker",
 		},
+		{
+			input: []byte(`heredoc <<EOF
+The next line is a blank line
+
+The previous line is a blank line
+EOF`),
+			expected: []Token{
+				{Line: 1, Text: "heredoc"},
+				{Line: 1, Text: "The next line is a blank line\n\nThe previous line is a blank line"},
+			},
+		},
+		{
+			input: []byte(`heredoc <<EOF
+	One tab indented heredoc with blank next line
+
+	One tab indented heredoc with blank previous line
+	EOF`),
+			expected: []Token{
+				{Line: 1, Text: "heredoc"},
+				{Line: 1, Text: "One tab indented heredoc with blank next line\n\nOne tab indented heredoc with blank previous line"},
+			},
+		},
+		{
+			input: []byte(`heredoc <<EOF
+The next line is a blank line with one tab
+	
+The previous line is a blank line with one tab
+EOF`),
+			expected: []Token{
+				{Line: 1, Text: "heredoc"},
+				{Line: 1, Text: "The next line is a blank line with one tab\n\t\nThe previous line is a blank line with one tab"},
+			},
+		},
+		{
+			input: []byte(`heredoc <<EOF
+		The next line is a blank line with one tab less than the correct indentation
+	
+		The previous line is a blank line with one tab less than the correct indentation
+		EOF`),
+			expectErr:    true,
+			errorMessage: "mismatched leading whitespace in heredoc <<EOF on line #3 [\t], expected whitespace [\t\t] to match the closing marker",
+		},
 	}
 
 	for i, testCase := range testCases {

caddyconfig/caddyfile/parse.go

@@ -50,7 +50,7 @@ func Parse(filename string, input []byte) ([]ServerBlock, error) {
 	p := parser{
 		Dispenser: NewDispenser(tokens),
 		importGraph: importGraph{
-			nodes: make(map[string]bool),
+			nodes: make(map[string]struct{}),
 			edges: make(adjacency),
 		},
 	}
@@ -160,14 +160,14 @@ func (p *parser) begin() error {
 	}
 
 	if ok, name := p.isNamedRoute(); ok {
-		// named routes only have one key, the route name
-		p.block.Keys = []string{name}
-		p.block.IsNamedRoute = true
-
 		// we just need a dummy leading token to ease parsing later
 		nameToken := p.Token()
 		nameToken.Text = name
 
+		// named routes only have one key, the route name
+		p.block.Keys = []Token{nameToken}
+		p.block.IsNamedRoute = true
+
 		// get all the tokens from the block, including the braces
 		tokens, err := p.blockTokens(true)
 		if err != nil {
@@ -211,10 +211,16 @@ func (p *parser) addresses() error {
 	var expectingAnother bool
 
 	for {
-		tkn := p.Val()
+		value := p.Val()
+		token := p.Token()
 
-		// special case: import directive replaces tokens during parse-time
-		if tkn == "import" && p.isNewLine() {
+		// Reject request matchers if trying to define them globally
+		if strings.HasPrefix(value, "@") {
+			return p.Errf("request matchers may not be defined globally, they must be in a site block; found %s", value)
+		}
+
+		// Special case: import directive replaces tokens during parse-time
+		if value == "import" && p.isNewLine() {
 			err := p.doImport(0)
 			if err != nil {
 				return err
@@ -223,9 +229,9 @@ func (p *parser) addresses() error {
 		}
 
 		// Open brace definitely indicates end of addresses
-		if tkn == "{" {
+		if value == "{" {
 			if expectingAnother {
-				return p.Errf("Expected another address but had '%s' - check for extra comma", tkn)
+				return p.Errf("Expected another address but had '%s' - check for extra comma", value)
 			}
 			// Mark this server block as being defined with braces.
 			// This is used to provide a better error message when
@@ -237,15 +243,15 @@ func (p *parser) addresses() error {
 		}
 
 		// Users commonly forget to place a space between the address and the '{'
-		if strings.HasSuffix(tkn, "{") {
-			return p.Errf("Site addresses cannot end with a curly brace: '%s' - put a space between the token and the brace", tkn)
+		if strings.HasSuffix(value, "{") {
+			return p.Errf("Site addresses cannot end with a curly brace: '%s' - put a space between the token and the brace", value)
 		}
 
-		if tkn != "" { // empty token possible if user typed ""
+		if value != "" { // empty token possible if user typed ""
 			// Trailing comma indicates another address will follow, which
 			// may possibly be on the next line
-			if tkn[len(tkn)-1] == ',' {
-				tkn = tkn[:len(tkn)-1]
+			if value[len(value)-1] == ',' {
+				value = value[:len(value)-1]
 				expectingAnother = true
 			} else {
 				expectingAnother = false // but we may still see another one on this line
@@ -254,11 +260,12 @@ func (p *parser) addresses() error {
 			// If there's a comma here, it's probably because they didn't use a space
 			// between their two domains, e.g. "foo.com,bar.com", which would not be
 			// parsed as two separate site addresses.
-			if strings.Contains(tkn, ",") {
-				return p.Errf("Site addresses cannot contain a comma ',': '%s' - put a space after the comma to separate site addresses", tkn)
+			if strings.Contains(value, ",") {
+				return p.Errf("Site addresses cannot contain a comma ',': '%s' - put a space after the comma to separate site addresses", value)
 			}
 
-			p.block.Keys = append(p.block.Keys, tkn)
+			token.Text = value
+			p.block.Keys = append(p.block.Keys, token)
 		}
 
 		// Advance token and possibly break out of loop or return error
@@ -393,7 +400,6 @@ func (p *parser) doImport(nesting int) error {
 			return p.Errf("Glob pattern may only contain one wildcard (*), but has others: %s", globPattern)
 		}
 		matches, err = filepath.Glob(globPattern)
-
 		if err != nil {
 			return p.Errf("Failed to use import pattern %s: %v", importPattern, err)
 		}
@@ -637,8 +643,8 @@ func (p *parser) closeCurlyBrace() error {
 func (p *parser) isNamedRoute() (bool, string) {
 	keys := p.block.Keys
 	// A named route block is a single key with parens, prefixed with &.
-	if len(keys) == 1 && strings.HasPrefix(keys[0], "&(") && strings.HasSuffix(keys[0], ")") {
-		return true, strings.TrimSuffix(keys[0][2:], ")")
+	if len(keys) == 1 && strings.HasPrefix(keys[0].Text, "&(") && strings.HasSuffix(keys[0].Text, ")") {
+		return true, strings.TrimSuffix(keys[0].Text[2:], ")")
 	}
 	return false, ""
 }
@@ -646,8 +652,8 @@ func (p *parser) isNamedRoute() (bool, string) {
 func (p *parser) isSnippet() (bool, string) {
 	keys := p.block.Keys
 	// A snippet block is a single key with parens. Nothing else qualifies.
-	if len(keys) == 1 && strings.HasPrefix(keys[0], "(") && strings.HasSuffix(keys[0], ")") {
-		return true, strings.TrimSuffix(keys[0][1:], ")")
+	if len(keys) == 1 && strings.HasPrefix(keys[0].Text, "(") && strings.HasSuffix(keys[0].Text, ")") {
+		return true, strings.TrimSuffix(keys[0].Text[1:], ")")
 	}
 	return false, ""
 }
@@ -691,11 +697,19 @@ func (p *parser) blockTokens(retainCurlies bool) ([]Token, error) {
 // grouped by segments.
 type ServerBlock struct {
 	HasBraces    bool
-	Keys         []string
+	Keys         []Token
 	Segments     []Segment
 	IsNamedRoute bool
 }
 
+func (sb ServerBlock) GetKeysText() []string {
+	res := []string{}
+	for _, k := range sb.Keys {
+		res = append(res, k.Text)
+	}
+	return res
+}
+
 // DispenseDirective returns a dispenser that contains
 // all the tokens in the server block.
 func (sb ServerBlock) DispenseDirective(dir string) *Dispenser {

caddyconfig/caddyfile/parse_test.go

@@ -22,7 +22,7 @@ import (
 )
 
 func TestParseVariadic(t *testing.T) {
-	var args = make([]string, 10)
+	args := make([]string, 10)
 	for i, tc := range []struct {
 		input  string
 		result bool
@@ -111,7 +111,6 @@ func TestAllTokens(t *testing.T) {
 	input := []byte("a b c\nd e")
 	expected := []string{"a", "b", "c", "d", "e"}
 	tokens, err := allTokens("TestAllTokens", input)
-
 	if err != nil {
 		t.Fatalf("Expected no error, got %v", err)
 	}
@@ -149,10 +148,11 @@ func TestParseOneAndImport(t *testing.T) {
 			"localhost",
 		}, []int{1}},
 
-		{`localhost:1234
+		{
+			`localhost:1234
 		  dir1 foo bar`, false, []string{
-			"localhost:1234",
-		}, []int{3},
+				"localhost:1234",
+			}, []int{3},
 		},
 
 		{`localhost {
@@ -347,7 +347,7 @@ func TestParseOneAndImport(t *testing.T) {
 				i, len(test.keys), len(result.Keys))
 			continue
 		}
-		for j, addr := range result.Keys {
+		for j, addr := range result.GetKeysText() {
 			if addr != test.keys[j] {
 				t.Errorf("Test %d, key %d: Expected '%s', but was '%s'",
 					i, j, test.keys[j], addr)
@@ -379,8 +379,9 @@ func TestRecursiveImport(t *testing.T) {
 	}
 
 	isExpected := func(got ServerBlock) bool {
-		if len(got.Keys) != 1 || got.Keys[0] != "localhost" {
-			t.Errorf("got keys unexpected: expect localhost, got %v", got.Keys)
+		textKeys := got.GetKeysText()
+		if len(textKeys) != 1 || textKeys[0] != "localhost" {
+			t.Errorf("got keys unexpected: expect localhost, got %v", textKeys)
 			return false
 		}
 		if len(got.Segments) != 2 {
@@ -407,13 +408,13 @@ func TestRecursiveImport(t *testing.T) {
 	err = os.WriteFile(recursiveFile1, []byte(
 		`localhost
 		dir1
-		import recursive_import_test2`), 0644)
+		import recursive_import_test2`), 0o644)
 	if err != nil {
 		t.Fatal(err)
 	}
 	defer os.Remove(recursiveFile1)
 
-	err = os.WriteFile(recursiveFile2, []byte("dir2 1"), 0644)
+	err = os.WriteFile(recursiveFile2, []byte("dir2 1"), 0o644)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -441,7 +442,7 @@ func TestRecursiveImport(t *testing.T) {
 	err = os.WriteFile(recursiveFile1, []byte(
 		`localhost
 		dir1
-		import `+recursiveFile2), 0644)
+		import `+recursiveFile2), 0o644)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -474,8 +475,9 @@ func TestDirectiveImport(t *testing.T) {
 	}
 
 	isExpected := func(got ServerBlock) bool {
-		if len(got.Keys) != 1 || got.Keys[0] != "localhost" {
-			t.Errorf("got keys unexpected: expect localhost, got %v", got.Keys)
+		textKeys := got.GetKeysText()
+		if len(textKeys) != 1 || textKeys[0] != "localhost" {
+			t.Errorf("got keys unexpected: expect localhost, got %v", textKeys)
 			return false
 		}
 		if len(got.Segments) != 2 {
@@ -495,7 +497,7 @@ func TestDirectiveImport(t *testing.T) {
 	}
 
 	err = os.WriteFile(directiveFile, []byte(`prop1 1
-	prop2 2`), 0644)
+	prop2 2`), 0o644)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -616,7 +618,7 @@ func TestParseAll(t *testing.T) {
 					i, len(test.keys[j]), j, len(block.Keys))
 				continue
 			}
-			for k, addr := range block.Keys {
+			for k, addr := range block.GetKeysText() {
 				if addr != test.keys[j][k] {
 					t.Errorf("Test %d, block %d, key %d: Expected '%s', but got '%s'",
 						i, j, k, test.keys[j][k], addr)
@@ -769,7 +771,7 @@ func TestSnippets(t *testing.T) {
 	if len(blocks) != 1 {
 		t.Fatalf("Expect exactly one server block. Got %d.", len(blocks))
 	}
-	if actual, expected := blocks[0].Keys[0], "http://example.com"; expected != actual {
+	if actual, expected := blocks[0].GetKeysText()[0], "http://example.com"; expected != actual {
 		t.Errorf("Expected server name to be '%s' but was '%s'", expected, actual)
 	}
 	if len(blocks[0].Segments) != 2 {
@@ -801,7 +803,7 @@ func TestImportedFilesIgnoreNonDirectiveImportTokens(t *testing.T) {
 	fileName := writeStringToTempFileOrDie(t, `
 		http://example.com {
 			# This isn't an import directive, it's just an arg with value 'import'
-			basicauth / import password
+			basic_auth / import password
 		}
 	`)
 	// Parse the root file that imports the other one.
@@ -812,12 +814,12 @@ func TestImportedFilesIgnoreNonDirectiveImportTokens(t *testing.T) {
 	}
 	auth := blocks[0].Segments[0]
 	line := auth[0].Text + " " + auth[1].Text + " " + auth[2].Text + " " + auth[3].Text
-	if line != "basicauth / import password" {
+	if line != "basic_auth / import password" {
 		// Previously, it would be changed to:
-		//   basicauth / import /path/to/test/dir/password
+		//   basic_auth / import /path/to/test/dir/password
 		// referencing a file that (probably) doesn't exist and changing the
 		// password!
-		t.Errorf("Expected basicauth tokens to be 'basicauth / import password' but got %#q", line)
+		t.Errorf("Expected basic_auth tokens to be 'basic_auth / import password' but got %#q", line)
 	}
 }
 
@@ -844,7 +846,7 @@ func TestSnippetAcrossMultipleFiles(t *testing.T) {
 	if len(blocks) != 1 {
 		t.Fatalf("Expect exactly one server block. Got %d.", len(blocks))
 	}
-	if actual, expected := blocks[0].Keys[0], "http://example.com"; expected != actual {
+	if actual, expected := blocks[0].GetKeysText()[0], "http://example.com"; expected != actual {
 		t.Errorf("Expected server name to be '%s' but was '%s'", expected, actual)
 	}
 	if len(blocks[0].Segments) != 1 {
@@ -855,6 +857,29 @@ func TestSnippetAcrossMultipleFiles(t *testing.T) {
 	}
 }
 
+func TestRejectsGlobalMatcher(t *testing.T) {
+	p := testParser(`
+		@rejected path /foo
+
+		(common) {
+			gzip foo
+			errors stderr
+		}
+
+		http://example.com {
+			import common
+		}
+	`)
+	_, err := p.parseAll()
+	if err == nil {
+		t.Fatal("Expected an error, but got nil")
+	}
+	expected := "request matchers may not be defined globally, they must be in a site block; found @rejected, at Testfile:2"
+	if err.Error() != expected {
+		t.Errorf("Expected error to be '%s' but got '%v'", expected, err)
+	}
+}
+
 func testParser(input string) parser {
 	return parser{Dispenser: NewTestDispenser(input)}
 }

caddyconfig/httpcaddyfile/addresses.go

@@ -88,15 +88,15 @@ 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][]string)
+		addrToKeys := make(map[string][]caddyfile.Token)
 		for j, key := range sblock.block.Keys {
 			// 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, options)
+			addrs, err := st.listenerAddrsForServerBlockKey(sblock, key.Text, options)
 			if err != nil {
-				return nil, fmt.Errorf("server block %d, key %d (%s): determining listener address: %v", i, j, key, err)
+				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
@@ -122,9 +122,9 @@ func (st *ServerType) mapAddressToServerBlocks(originalServerBlocks []serverBloc
 			// parse keys so that we only have to do it once
 			parsedKeys := make([]Address, 0, len(keys))
 			for _, key := range keys {
-				addr, err := ParseAddress(key)
+				addr, err := ParseAddress(key.Text)
 				if err != nil {
-					return nil, fmt.Errorf("parsing key '%s': %v", key, err)
+					return nil, fmt.Errorf("parsing key '%s': %v", key.Text, err)
 				}
 				parsedKeys = append(parsedKeys, addr.Normalize())
 			}

caddyconfig/httpcaddyfile/directives.go

@@ -27,22 +27,33 @@ import (
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
-// directiveOrder specifies the order
-// to apply directives in HTTP routes.
+// defaultDirectiveOrder specifies the default order
+// to apply directives in HTTP routes. This must only
+// consist of directives that are included in Caddy's
+// standard distribution.
 //
-// The root directive goes first in case rewrites or
-// redirects depend on existence of files, i.e. the
-// file matcher, which must know the root first.
+// e.g. The 'root' directive goes near the start in
+// case rewrites or redirects depend on existence of
+// files, i.e. the file matcher, which must know the
+// root first.
 //
-// The header directive goes second so that headers
-// can be manipulated before doing redirects.
-var directiveOrder = []string{
+// e.g. The 'header' directive goes before 'redir' so
+// that headers can be manipulated before doing redirects.
+//
+// e.g. The 'respond' directive is near the end because it
+// writes a response and terminates the middleware chain.
+var defaultDirectiveOrder = []string{
 	"tracing",
 
+	// set variables that may be used by other directives
 	"map",
 	"vars",
+	"fs",
 	"root",
-	"skip_log",
+	"log_append",
+	"skip_log", // TODO: deprecated, renamed to log_skip
+	"log_skip",
+	"log_name",
 
 	"header",
 	"copy_response_headers", // only in reverse_proxy's handle_response
@@ -57,11 +68,13 @@ var directiveOrder = []string{
 	"try_files",
 
 	// middleware handlers; some wrap responses
-	"basicauth",
+	"basicauth", // TODO: deprecated, renamed to basic_auth
+	"basic_auth",
 	"forward_auth",
 	"request_header",
 	"encode",
 	"push",
+	"intercept",
 	"templates",
 
 	// special routing & dispatching directives
@@ -82,6 +95,11 @@ var directiveOrder = []string{
 	"acme_server",
 }
 
+// directiveOrder specifies the order to apply directives
+// in HTTP routes, after being modified by either the
+// 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 {
@@ -128,6 +146,58 @@ func RegisterHandlerDirective(dir string, setupFunc UnmarshalHandlerFunc) {
 	})
 }
 
+// RegisterDirectiveOrder registers the default order for a
+// directive from a plugin.
+//
+// This is useful when a plugin has a well-understood place
+// it should run in the middleware pipeline, and it allows
+// users to avoid having to define the order themselves.
+//
+// The directive dir may be placed in the position relative
+// to ('before' or 'after') a directive included in Caddy's
+// standard distribution. It cannot be relative to another
+// plugin's directive.
+//
+// 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) {
+		panic("directive '" + dir + "' already ordered")
+	}
+
+	if position != Before && position != After {
+		panic("the 2nd argument must be either 'before' or 'after', got '" + position + "'")
+	}
+
+	// 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
+	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")
+	}
+
+	// insert directive into proper position
+	newOrder := directiveOrder
+	for i, d := range newOrder {
+		if d != standardDir {
+			continue
+		}
+		if position == Before {
+			newOrder = append(newOrder[:i], append([]string{dir}, newOrder[i:]...)...)
+		} else if position == After {
+			newOrder = append(newOrder[:i+1], append([]string{dir}, newOrder[i+1:]...)...)
+		}
+		break
+	}
+	directiveOrder = newOrder
+}
+
 // RegisterGlobalOption registers a unique global option opt with
 // an associated unmarshaling (setup) function. When the global
 // option opt is encountered in a Caddyfile, setupFunc will be
@@ -270,12 +340,6 @@ func (h Helper) GroupRoutes(vals []ConfigValue) {
 	}
 }
 
-// NewBindAddresses returns config values relevant to adding
-// listener bind addresses to the config.
-func (h Helper) NewBindAddresses(addrs []string) []ConfigValue {
-	return []ConfigValue{{Class: "bind", Value: addrs}}
-}
-
 // WithDispenser returns a new instance based on d. All others Helper
 // fields are copied, so typically maps are shared with this new instance.
 func (h Helper) WithDispenser(d *caddyfile.Dispenser) Helper {
@@ -558,6 +622,16 @@ func (sb serverBlock) isAllHTTP() bool {
 	return true
 }
 
+// Positional are the supported modes for ordering directives.
+type Positional string
+
+const (
+	Before Positional = "before"
+	After  Positional = "after"
+	First  Positional = "first"
+	Last   Positional = "last"
+)
+
 type (
 	// UnmarshalFunc is a function which can unmarshal Caddyfile
 	// tokens into zero or more config values using a Helper type.

caddyconfig/httpcaddyfile/directives_test.go

@@ -31,20 +31,23 @@ func TestHostsFromKeys(t *testing.T) {
 			[]Address{
 				{Original: ":2015", Port: "2015"},
 			},
-			[]string{}, []string{},
+			[]string{},
+			[]string{},
 		},
 		{
 			[]Address{
 				{Original: ":443", Port: "443"},
 			},
-			[]string{}, []string{},
+			[]string{},
+			[]string{},
 		},
 		{
 			[]Address{
 				{Original: "foo", Host: "foo"},
 				{Original: ":2015", Port: "2015"},
 			},
-			[]string{}, []string{"foo"},
+			[]string{},
+			[]string{"foo"},
 		},
 		{
 			[]Address{

caddyconfig/httpcaddyfile/httptype.go

@@ -19,12 +19,12 @@ import (
 	"fmt"
 	"net"
 	"reflect"
+	"slices"
 	"sort"
 	"strconv"
 	"strings"
 
 	"go.uber.org/zap"
-	"golang.org/x/exp/slices"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
@@ -65,8 +65,11 @@ func (st ServerType) Setup(
 	originalServerBlocks := make([]serverBlock, 0, len(inputServerBlocks))
 	for _, sblock := range inputServerBlocks {
 		for j, k := range sblock.Keys {
-			if j == 0 && strings.HasPrefix(k, "@") {
-				return nil, warnings, fmt.Errorf("cannot define a matcher outside of a site block: '%s'", k)
+			if j == 0 && strings.HasPrefix(k.Text, "@") {
+				return nil, warnings, fmt.Errorf("%s:%d: cannot define a matcher outside of a site block: '%s'", k.File, k.Line, k.Text)
+			}
+			if _, ok := registeredDirectives[k.Text]; ok {
+				return nil, warnings, fmt.Errorf("%s:%d: parsed '%s' as a site address, but it is a known directive; directives must appear in a site block", k.File, k.Line, k.Text)
 			}
 		}
 		originalServerBlocks = append(originalServerBlocks, serverBlock{
@@ -271,6 +274,12 @@ func (st ServerType) Setup(
 	if !reflect.DeepEqual(pkiApp, &caddypki.PKI{CAs: make(map[string]*caddypki.CA)}) {
 		cfg.AppsRaw["pki"] = caddyconfig.JSON(pkiApp, &warnings)
 	}
+	if filesystems, ok := options["filesystem"].(caddy.Module); ok {
+		cfg.AppsRaw["caddy.filesystems"] = caddyconfig.JSON(
+			filesystems,
+			&warnings)
+	}
+
 	if storageCvtr, ok := options["storage"].(caddy.StorageConverter); ok {
 		cfg.StorageRaw = caddyconfig.JSONModuleObject(storageCvtr,
 			"module",
@@ -280,7 +289,6 @@ func (st ServerType) Setup(
 	if adminConfig, ok := options["admin"].(*caddy.AdminConfig); ok && adminConfig != nil {
 		cfg.Admin = adminConfig
 	}
-
 	if pc, ok := options["persist_config"].(string); ok && pc == "off" {
 		if cfg.Admin == nil {
 			cfg.Admin = new(caddy.AdminConfig)
@@ -485,7 +493,7 @@ func (ServerType) extractNamedRoutes(
 			route.HandlersRaw = []json.RawMessage{caddyconfig.JSONModuleObject(handler, "handler", subroute.CaddyModule().ID.Name(), h.warnings)}
 		}
 
-		namedRoutes[sb.block.Keys[0]] = &route
+		namedRoutes[sb.block.GetKeysText()[0]] = &route
 	}
 	options["named_routes"] = namedRoutes
 
@@ -523,12 +531,12 @@ func (st *ServerType) serversFromPairings(
 		// address), otherwise their routes will improperly be added
 		// to the same server (see issue #4635)
 		for j, sblock1 := range p.serverBlocks {
-			for _, key := range sblock1.block.Keys {
+			for _, key := range sblock1.block.GetKeysText() {
 				for k, sblock2 := range p.serverBlocks {
 					if k == j {
 						continue
 					}
-					if sliceContains(sblock2.block.Keys, key) {
+					if sliceContains(sblock2.block.GetKeysText(), key) {
 						return nil, fmt.Errorf("ambiguous site definition: %s", key)
 					}
 				}
@@ -769,10 +777,19 @@ func (st *ServerType) serversFromPairings(
 				if srv.Errors == nil {
 					srv.Errors = new(caddyhttp.HTTPErrorConfig)
 				}
+				sort.SliceStable(errorSubrouteVals, func(i, j int) bool {
+					sri, srj := errorSubrouteVals[i].Value.(*caddyhttp.Subroute), errorSubrouteVals[j].Value.(*caddyhttp.Subroute)
+					if len(sri.Routes[0].MatcherSetsRaw) == 0 && len(srj.Routes[0].MatcherSetsRaw) != 0 {
+						return false
+					}
+					return true
+				})
+				errorsSubroute := &caddyhttp.Subroute{}
 				for _, val := range errorSubrouteVals {
 					sr := val.Value.(*caddyhttp.Subroute)
-					srv.Errors.Routes = appendSubrouteToRouteList(srv.Errors.Routes, sr, matcherSetsEnc, p, warnings)
+					errorsSubroute.Routes = append(errorsSubroute.Routes, sr.Routes...)
 				}
+				srv.Errors.Routes = appendSubrouteToRouteList(srv.Errors.Routes, errorsSubroute, matcherSetsEnc, p, warnings)
 			}
 
 			// add log associations
@@ -780,6 +797,15 @@ func (st *ServerType) serversFromPairings(
 			sblockLogHosts := sblock.hostsFromKeys(true)
 			for _, cval := range sblock.pile["custom_log"] {
 				ncl := cval.Value.(namedCustomLog)
+
+				// if `no_hostname` is set, then this logger will not
+				// be associated with any of the site block's hostnames,
+				// and only be usable via the `log_name` directive
+				// or the `access_logger_names` variable
+				if ncl.noHostname {
+					continue
+				}
+
 				if sblock.hasHostCatchAllKey() && len(ncl.hostnames) == 0 {
 					// all requests for hosts not able to be listed should use
 					// this log because it's a catch-all-hosts server block
@@ -788,22 +814,22 @@ func (st *ServerType) serversFromPairings(
 					// if the logger overrides the hostnames, map that to the logger name
 					for _, h := range ncl.hostnames {
 						if srv.Logs.LoggerNames == nil {
-							srv.Logs.LoggerNames = make(map[string]string)
+							srv.Logs.LoggerNames = make(map[string]caddyhttp.StringArray)
 						}
-						srv.Logs.LoggerNames[h] = ncl.name
+						srv.Logs.LoggerNames[h] = append(srv.Logs.LoggerNames[h], ncl.name)
 					}
 				} else {
 					// otherwise, map each host to the logger name
 					for _, h := range sblockLogHosts {
-						if srv.Logs.LoggerNames == nil {
-							srv.Logs.LoggerNames = make(map[string]string)
-						}
 						// strip the port from the host, if any
 						host, _, err := net.SplitHostPort(h)
 						if err != nil {
 							host = h
 						}
-						srv.Logs.LoggerNames[host] = ncl.name
+						if srv.Logs.LoggerNames == nil {
+							srv.Logs.LoggerNames = make(map[string]caddyhttp.StringArray)
+						}
+						srv.Logs.LoggerNames[host] = append(srv.Logs.LoggerNames[host], ncl.name)
 					}
 				}
 			}
@@ -820,6 +846,11 @@ func (st *ServerType) serversFromPairings(
 			}
 		}
 
+		// sort for deterministic JSON output
+		if srv.Logs != nil {
+			slices.Sort(srv.Logs.SkipHosts)
+		}
+
 		// a server cannot (natively) serve both HTTP and HTTPS at the
 		// same time, so make sure the configuration isn't in conflict
 		err := detectConflictingSchemes(srv, p.serverBlocks, options)
@@ -1260,19 +1291,24 @@ func matcherSetFromMatcherToken(
 	if tkn.Text == "*" {
 		// match all requests == no matchers, so nothing to do
 		return nil, true, nil
-	} else if strings.HasPrefix(tkn.Text, "/") {
-		// convenient way to specify a single path match
+	}
+
+	// convenient way to specify a single path match
+	if strings.HasPrefix(tkn.Text, "/") {
 		return caddy.ModuleMap{
 			"path": caddyconfig.JSON(caddyhttp.MatchPath{tkn.Text}, warnings),
 		}, true, nil
-	} else if strings.HasPrefix(tkn.Text, matcherPrefix) {
-		// pre-defined matcher
+	}
+
+	// pre-defined matcher
+	if strings.HasPrefix(tkn.Text, matcherPrefix) {
 		m, ok := matcherDefs[tkn.Text]
 		if !ok {
 			return nil, false, fmt.Errorf("unrecognized matcher name: %+v", tkn.Text)
 		}
 		return m, true, nil
 	}
+
 	return nil, false, nil
 }
 
@@ -1362,68 +1398,83 @@ func (st *ServerType) compileEncodedMatcherSets(sblock serverBlock) ([]caddy.Mod
 }
 
 func parseMatcherDefinitions(d *caddyfile.Dispenser, matchers map[string]caddy.ModuleMap) error {
-	for d.Next() {
-		// this is the "name" for "named matchers"
-		definitionName := d.Val()
+	d.Next() // advance to the first token
 
-		if _, ok := matchers[definitionName]; ok {
-			return fmt.Errorf("matcher is defined more than once: %s", definitionName)
+	// this is the "name" for "named matchers"
+	definitionName := d.Val()
+
+	if _, ok := matchers[definitionName]; ok {
+		return fmt.Errorf("matcher is defined more than once: %s", definitionName)
+	}
+	matchers[definitionName] = make(caddy.ModuleMap)
+
+	// given a matcher name and the tokens following it, parse
+	// the tokens as a matcher module and record it
+	makeMatcher := func(matcherName string, tokens []caddyfile.Token) error {
+		// create a new dispenser from the tokens
+		dispenser := caddyfile.NewDispenser(tokens)
+
+		// set the matcher name (without @) in the dispenser context so
+		// that matcher modules can access it to use it as their name
+		// (e.g. regexp matchers which use the name for capture groups)
+		dispenser.SetContext(caddyfile.MatcherNameCtxKey, definitionName[1:])
+
+		mod, err := caddy.GetModule("http.matchers." + matcherName)
+		if err != nil {
+			return fmt.Errorf("getting matcher module '%s': %v", matcherName, err)
 		}
-		matchers[definitionName] = make(caddy.ModuleMap)
+		unm, ok := mod.New().(caddyfile.Unmarshaler)
+		if !ok {
+			return fmt.Errorf("matcher module '%s' is not a Caddyfile unmarshaler", matcherName)
+		}
+		err = unm.UnmarshalCaddyfile(dispenser)
+		if err != nil {
+			return err
+		}
+		rm, ok := unm.(caddyhttp.RequestMatcher)
+		if !ok {
+			return fmt.Errorf("matcher module '%s' is not a request matcher", matcherName)
+		}
+		matchers[definitionName][matcherName] = caddyconfig.JSON(rm, nil)
+		return nil
+	}
 
-		// given a matcher name and the tokens following it, parse
-		// the tokens as a matcher module and record it
-		makeMatcher := func(matcherName string, tokens []caddyfile.Token) error {
-			mod, err := caddy.GetModule("http.matchers." + matcherName)
-			if err != nil {
-				return fmt.Errorf("getting matcher module '%s': %v", matcherName, err)
-			}
-			unm, ok := mod.New().(caddyfile.Unmarshaler)
-			if !ok {
-				return fmt.Errorf("matcher module '%s' is not a Caddyfile unmarshaler", matcherName)
-			}
-			err = unm.UnmarshalCaddyfile(caddyfile.NewDispenser(tokens))
+	// if the next token is quoted, we can assume it's not a matcher name
+	// and that it's probably an 'expression' matcher
+	if d.NextArg() {
+		if d.Token().Quoted() {
+			// since it was missing the matcher name, we insert a token
+			// in front of the expression token itself; we use Clone() to
+			// make the new token to keep the same the import location as
+			// the next token, if this is within a snippet or imported file.
+			// see https://github.com/caddyserver/caddy/issues/6287
+			expressionToken := d.Token().Clone()
+			expressionToken.Text = "expression"
+			err := makeMatcher("expression", []caddyfile.Token{expressionToken, d.Token()})
 			if err != nil {
 				return err
 			}
-			rm, ok := unm.(caddyhttp.RequestMatcher)
-			if !ok {
-				return fmt.Errorf("matcher module '%s' is not a request matcher", matcherName)
-			}
-			matchers[definitionName][matcherName] = caddyconfig.JSON(rm, nil)
 			return nil
 		}
 
-		// if the next token is quoted, we can assume it's not a matcher name
-		// and that it's probably an 'expression' matcher
-		if d.NextArg() {
-			if d.Token().Quoted() {
-				err := makeMatcher("expression", []caddyfile.Token{d.Token()})
-				if err != nil {
-					return err
-				}
-				continue
-			}
+		// if it wasn't quoted, then we need to rewind after calling
+		// d.NextArg() so the below properly grabs the matcher name
+		d.Prev()
+	}
 
-			// if it wasn't quoted, then we need to rewind after calling
-			// d.NextArg() so the below properly grabs the matcher name
-			d.Prev()
-		}
-
-		// in case there are multiple instances of the same matcher, concatenate
-		// their tokens (we expect that UnmarshalCaddyfile should be able to
-		// handle more than one segment); otherwise, we'd overwrite other
-		// instances of the matcher in this set
-		tokensByMatcherName := make(map[string][]caddyfile.Token)
-		for nesting := d.Nesting(); d.NextArg() || d.NextBlock(nesting); {
-			matcherName := d.Val()
-			tokensByMatcherName[matcherName] = append(tokensByMatcherName[matcherName], d.NextSegment()...)
-		}
-		for matcherName, tokens := range tokensByMatcherName {
-			err := makeMatcher(matcherName, tokens)
-			if err != nil {
-				return err
-			}
+	// in case there are multiple instances of the same matcher, concatenate
+	// their tokens (we expect that UnmarshalCaddyfile should be able to
+	// handle more than one segment); otherwise, we'd overwrite other
+	// instances of the matcher in this set
+	tokensByMatcherName := make(map[string][]caddyfile.Token)
+	for nesting := d.Nesting(); d.NextArg() || d.NextBlock(nesting); {
+		matcherName := d.Val()
+		tokensByMatcherName[matcherName] = append(tokensByMatcherName[matcherName], d.NextSegment()...)
+	}
+	for matcherName, tokens := range tokensByMatcherName {
+		err := makeMatcher(matcherName, tokens)
+		if err != nil {
+			return err
 		}
 	}
 	return nil
@@ -1556,9 +1607,10 @@ func (c counter) nextGroup() string {
 }
 
 type namedCustomLog struct {
-	name      string
-	hostnames []string
-	log       *caddy.CustomLog
+	name       string
+	hostnames  []string
+	log        *caddy.CustomLog
+	noHostname bool
 }
 
 // sbAddrAssociation is a mapping from a list of

caddyconfig/httpcaddyfile/options.go

@@ -18,7 +18,7 @@ import (
 	"strconv"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/mholt/acmez/acme"
+	"github.com/mholt/acmez/v2/acme"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
@@ -54,6 +54,7 @@ func init() {
 	RegisterGlobalOption("auto_https", parseOptAutoHTTPS)
 	RegisterGlobalOption("servers", parseServerOptions)
 	RegisterGlobalOption("ocsp_stapling", parseOCSPStaplingOptions)
+	RegisterGlobalOption("cert_lifetime", parseOptDuration)
 	RegisterGlobalOption("log", parseLogOptions)
 	RegisterGlobalOption("preferred_chains", parseOptPreferredChains)
 	RegisterGlobalOption("persist_config", parseOptPersistConfig)
@@ -62,105 +63,103 @@ func init() {
 func parseOptTrue(d *caddyfile.Dispenser, _ any) (any, error) { return true, nil }
 
 func parseOptHTTPPort(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
 	var httpPort int
-	for d.Next() {
-		var httpPortStr string
-		if !d.AllArgs(&httpPortStr) {
-			return 0, d.ArgErr()
-		}
-		var err error
-		httpPort, err = strconv.Atoi(httpPortStr)
-		if err != nil {
-			return 0, d.Errf("converting port '%s' to integer value: %v", httpPortStr, err)
-		}
+	var httpPortStr string
+	if !d.AllArgs(&httpPortStr) {
+		return 0, d.ArgErr()
+	}
+	var err error
+	httpPort, err = strconv.Atoi(httpPortStr)
+	if err != nil {
+		return 0, d.Errf("converting port '%s' to integer value: %v", httpPortStr, err)
 	}
 	return httpPort, nil
 }
 
 func parseOptHTTPSPort(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
 	var httpsPort int
-	for d.Next() {
-		var httpsPortStr string
-		if !d.AllArgs(&httpsPortStr) {
-			return 0, d.ArgErr()
-		}
-		var err error
-		httpsPort, err = strconv.Atoi(httpsPortStr)
-		if err != nil {
-			return 0, d.Errf("converting port '%s' to integer value: %v", httpsPortStr, err)
-		}
+	var httpsPortStr string
+	if !d.AllArgs(&httpsPortStr) {
+		return 0, d.ArgErr()
+	}
+	var err error
+	httpsPort, err = strconv.Atoi(httpsPortStr)
+	if err != nil {
+		return 0, d.Errf("converting port '%s' to integer value: %v", httpsPortStr, err)
 	}
 	return httpsPort, nil
 }
 
 func parseOptOrder(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+
+	// get directive name
+	if !d.Next() {
+		return nil, d.ArgErr()
+	}
+	dirName := d.Val()
+	if _, ok := registeredDirectives[dirName]; !ok {
+		return nil, d.Errf("%s is not a registered directive", dirName)
+	}
+
+	// get positional token
+	if !d.Next() {
+		return nil, d.ArgErr()
+	}
+	pos := Positional(d.Val())
+
 	newOrder := directiveOrder
 
-	for d.Next() {
-		// get directive name
-		if !d.Next() {
-			return nil, d.ArgErr()
-		}
-		dirName := d.Val()
-		if _, ok := registeredDirectives[dirName]; !ok {
-			return nil, d.Errf("%s is not a registered directive", dirName)
+	// if directive exists, first remove it
+	for i, d := range newOrder {
+		if d == dirName {
+			newOrder = append(newOrder[:i], newOrder[i+1:]...)
+			break
 		}
+	}
 
-		// get positional token
-		if !d.Next() {
-			return nil, d.ArgErr()
-		}
-		pos := d.Val()
-
-		// if directive exists, first remove it
-		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...)
-			if d.NextArg() {
-				return nil, d.ArgErr()
-			}
-			directiveOrder = newOrder
-			return newOrder, nil
-		case "last":
-			newOrder = append(newOrder, dirName)
-			if d.NextArg() {
-				return nil, d.ArgErr()
-			}
-			directiveOrder = newOrder
-			return newOrder, nil
-		case "before":
-		case "after":
-		default:
-			return nil, d.Errf("unknown positional '%s'", pos)
-		}
-
-		// get name of other directive
-		if !d.NextArg() {
-			return nil, d.ArgErr()
-		}
-		otherDir := d.Val()
+	// act on the positional
+	switch pos {
+	case First:
+		newOrder = append([]string{dirName}, newOrder...)
 		if d.NextArg() {
 			return nil, d.ArgErr()
 		}
+		directiveOrder = newOrder
+		return newOrder, nil
+	case Last:
+		newOrder = append(newOrder, dirName)
+		if d.NextArg() {
+			return nil, d.ArgErr()
+		}
+		directiveOrder = newOrder
+		return newOrder, nil
+	case Before:
+	case After:
+	default:
+		return nil, d.Errf("unknown positional '%s'", pos)
+	}
 
-		// insert directive into proper position
-		for i, d := range newOrder {
-			if d == otherDir {
-				if pos == "before" {
-					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
+	// get name of other directive
+	if !d.NextArg() {
+		return nil, d.ArgErr()
+	}
+	otherDir := d.Val()
+	if d.NextArg() {
+		return nil, d.ArgErr()
+	}
+
+	// insert directive into proper position
+	for i, d := range newOrder {
+		if d == otherDir {
+			if pos == Before {
+				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
 		}
 	}
 
@@ -214,66 +213,67 @@ func parseOptACMEDNS(d *caddyfile.Dispenser, _ any) (any, error) {
 	if err != nil {
 		return nil, err
 	}
-	prov, ok := unm.(certmagic.ACMEDNSProvider)
+	prov, ok := unm.(certmagic.DNSProvider)
 	if !ok {
-		return nil, d.Errf("module %s (%T) is not a certmagic.ACMEDNSProvider", modID, unm)
+		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)
-	for d.Next() {
-		if d.NextArg() {
-			return nil, d.ArgErr()
-		}
-		for nesting := d.Nesting(); d.NextBlock(nesting); {
-			switch d.Val() {
-			case "key_id":
-				if !d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				eab.KeyID = d.Val()
-
-			case "mac_key":
-				if !d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				eab.MACKey = d.Val()
-
-			default:
-				return nil, d.Errf("unrecognized parameter '%s'", d.Val())
+	d.Next() // consume option name
+	if d.NextArg() {
+		return nil, d.ArgErr()
+	}
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "key_id":
+			if !d.NextArg() {
+				return nil, d.ArgErr()
 			}
+			eab.KeyID = d.Val()
+
+		case "mac_key":
+			if !d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			eab.MACKey = d.Val()
+
+		default:
+			return nil, d.Errf("unrecognized parameter '%s'", d.Val())
 		}
 	}
 	return eab, nil
 }
 
 func parseOptCertIssuer(d *caddyfile.Dispenser, existing any) (any, error) {
+	d.Next() // consume option name
+
 	var issuers []certmagic.Issuer
 	if existing != nil {
 		issuers = existing.([]certmagic.Issuer)
 	}
-	for d.Next() { // consume option name
-		if !d.Next() { // get issuer module name
-			return nil, d.ArgErr()
-		}
-		modID := "tls.issuance." + d.Val()
-		unm, err := caddyfile.UnmarshalModule(d, modID)
-		if err != nil {
-			return nil, err
-		}
-		iss, ok := unm.(certmagic.Issuer)
-		if !ok {
-			return nil, d.Errf("module %s (%T) is not a certmagic.Issuer", modID, unm)
-		}
-		issuers = append(issuers, iss)
+
+	// get issuer module name
+	if !d.Next() {
+		return nil, d.ArgErr()
 	}
+	modID := "tls.issuance." + d.Val()
+	unm, err := caddyfile.UnmarshalModule(d, modID)
+	if err != nil {
+		return nil, err
+	}
+	iss, ok := unm.(certmagic.Issuer)
+	if !ok {
+		return nil, d.Errf("module %s (%T) is not a certmagic.Issuer", modID, unm)
+	}
+	issuers = append(issuers, iss)
 	return issuers, nil
 }
 
 func parseOptSingleString(d *caddyfile.Dispenser, _ any) (any, error) {
-	d.Next() // consume parameter name
+	d.Next() // consume option name
 	if !d.Next() {
 		return "", d.ArgErr()
 	}
@@ -285,7 +285,7 @@ func parseOptSingleString(d *caddyfile.Dispenser, _ any) (any, error) {
 }
 
 func parseOptStringList(d *caddyfile.Dispenser, _ any) (any, error) {
-	d.Next() // consume parameter name
+	d.Next() // consume option name
 	val := d.RemainingArgs()
 	if len(val) == 0 {
 		return "", d.ArgErr()
@@ -294,33 +294,33 @@ func parseOptStringList(d *caddyfile.Dispenser, _ any) (any, error) {
 }
 
 func parseOptAdmin(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+
 	adminCfg := new(caddy.AdminConfig)
-	for d.Next() {
-		if d.NextArg() {
-			listenAddress := d.Val()
-			if listenAddress == "off" {
-				adminCfg.Disabled = true
-				if d.Next() { // Do not accept any remaining options including block
-					return nil, d.Err("No more option is allowed after turning off admin config")
-				}
-			} else {
-				adminCfg.Listen = listenAddress
-				if d.NextArg() { // At most 1 arg is allowed
-					return nil, d.ArgErr()
-				}
+	if d.NextArg() {
+		listenAddress := d.Val()
+		if listenAddress == "off" {
+			adminCfg.Disabled = true
+			if d.Next() { // Do not accept any remaining options including block
+				return nil, d.Err("No more option is allowed after turning off admin config")
+			}
+		} else {
+			adminCfg.Listen = listenAddress
+			if d.NextArg() { // At most 1 arg is allowed
+				return nil, d.ArgErr()
 			}
 		}
-		for nesting := d.Nesting(); d.NextBlock(nesting); {
-			switch d.Val() {
-			case "enforce_origin":
-				adminCfg.EnforceOrigin = true
+	}
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "enforce_origin":
+			adminCfg.EnforceOrigin = true
 
-			case "origins":
-				adminCfg.Origins = d.RemainingArgs()
+		case "origins":
+			adminCfg.Origins = d.RemainingArgs()
 
-			default:
-				return nil, d.Errf("unrecognized parameter '%s'", d.Val())
-			}
+		default:
+			return nil, d.Errf("unrecognized parameter '%s'", d.Val())
 		}
 	}
 	if adminCfg.Listen == "" && !adminCfg.Disabled {
@@ -330,57 +330,84 @@ func parseOptAdmin(d *caddyfile.Dispenser, _ any) (any, error) {
 }
 
 func parseOptOnDemand(d *caddyfile.Dispenser, _ any) (any, error) {
+	d.Next() // consume option name
+	if d.NextArg() {
+		return nil, d.ArgErr()
+	}
+
 	var ond *caddytls.OnDemandConfig
-	for d.Next() {
-		if d.NextArg() {
-			return nil, d.ArgErr()
-		}
-		for nesting := d.Nesting(); d.NextBlock(nesting); {
-			switch d.Val() {
-			case "ask":
-				if !d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				if ond == nil {
-					ond = new(caddytls.OnDemandConfig)
-				}
-				ond.Ask = d.Val()
 
-			case "interval":
-				if !d.NextArg() {
-					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.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())
+	for nesting := d.Nesting(); d.NextBlock(nesting); {
+		switch d.Val() {
+		case "ask":
+			if !d.NextArg() {
+				return nil, d.ArgErr()
 			}
+			if ond == nil {
+				ond = new(caddytls.OnDemandConfig)
+			}
+			if ond.PermissionRaw != nil {
+				return nil, d.Err("on-demand TLS permission module (or 'ask') already specified")
+			}
+			perm := caddytls.PermissionByHTTP{Endpoint: d.Val()}
+			ond.PermissionRaw = caddyconfig.JSONModuleObject(perm, "module", "http", nil)
+
+		case "permission":
+			if !d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			if ond == nil {
+				ond = new(caddytls.OnDemandConfig)
+			}
+			if ond.PermissionRaw != nil {
+				return nil, d.Err("on-demand TLS permission module (or 'ask') already specified")
+			}
+			modName := d.Val()
+			modID := "tls.permission." + modName
+			unm, err := caddyfile.UnmarshalModule(d, modID)
+			if err != nil {
+				return nil, err
+			}
+			perm, ok := unm.(caddytls.OnDemandPermission)
+			if !ok {
+				return nil, d.Errf("module %s (%T) is not an on-demand TLS permission module", modID, unm)
+			}
+			ond.PermissionRaw = caddyconfig.JSONModuleObject(perm, "module", modName, nil)
+
+		case "interval":
+			if !d.NextArg() {
+				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.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())
 		}
 	}
 	if ond == nil {
@@ -390,7 +417,7 @@ func parseOptOnDemand(d *caddyfile.Dispenser, _ any) (any, error) {
 }
 
 func parseOptPersistConfig(d *caddyfile.Dispenser, _ any) (any, error) {
-	d.Next() // consume parameter name
+	d.Next() // consume option name
 	if !d.Next() {
 		return "", d.ArgErr()
 	}
@@ -405,7 +432,7 @@ func parseOptPersistConfig(d *caddyfile.Dispenser, _ any) (any, error) {
 }
 
 func parseOptAutoHTTPS(d *caddyfile.Dispenser, _ any) (any, error) {
-	d.Next() // consume parameter name
+	d.Next() // consume option name
 	if !d.Next() {
 		return "", d.ArgErr()
 	}

caddyconfig/httpcaddyfile/pkiapp.go

@@ -48,124 +48,124 @@ func init() {
 //
 // When the CA ID is unspecified, 'local' is assumed.
 func parsePKIApp(d *caddyfile.Dispenser, existingVal any) (any, error) {
-	pki := &caddypki.PKI{CAs: make(map[string]*caddypki.CA)}
+	d.Next() // consume app name
 
-	for d.Next() {
-		for nesting := d.Nesting(); d.NextBlock(nesting); {
-			switch d.Val() {
-			case "ca":
-				pkiCa := new(caddypki.CA)
+	pki := &caddypki.PKI{
+		CAs: make(map[string]*caddypki.CA),
+	}
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "ca":
+			pkiCa := new(caddypki.CA)
+			if d.NextArg() {
+				pkiCa.ID = d.Val()
 				if d.NextArg() {
-					pkiCa.ID = d.Val()
-					if d.NextArg() {
+					return nil, d.ArgErr()
+				}
+			}
+			if pkiCa.ID == "" {
+				pkiCa.ID = caddypki.DefaultCAID
+			}
+
+			for nesting := d.Nesting(); d.NextBlock(nesting); {
+				switch d.Val() {
+				case "name":
+					if !d.NextArg() {
 						return nil, d.ArgErr()
 					}
-				}
-				if pkiCa.ID == "" {
-					pkiCa.ID = caddypki.DefaultCAID
-				}
+					pkiCa.Name = d.Val()
 
-				for nesting := d.Nesting(); d.NextBlock(nesting); {
-					switch d.Val() {
-					case "name":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						pkiCa.Name = d.Val()
-
-					case "root_cn":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						pkiCa.RootCommonName = d.Val()
-
-					case "intermediate_cn":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						pkiCa.IntermediateCommonName = d.Val()
-
-					case "intermediate_lifetime":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						dur, err := caddy.ParseDuration(d.Val())
-						if err != nil {
-							return nil, err
-						}
-						pkiCa.IntermediateLifetime = caddy.Duration(dur)
-
-					case "root":
-						if pkiCa.Root == nil {
-							pkiCa.Root = new(caddypki.KeyPair)
-						}
-						for nesting := d.Nesting(); d.NextBlock(nesting); {
-							switch d.Val() {
-							case "cert":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Root.Certificate = d.Val()
-
-							case "key":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Root.PrivateKey = d.Val()
-
-							case "format":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Root.Format = d.Val()
-
-							default:
-								return nil, d.Errf("unrecognized pki ca root option '%s'", d.Val())
-							}
-						}
-
-					case "intermediate":
-						if pkiCa.Intermediate == nil {
-							pkiCa.Intermediate = new(caddypki.KeyPair)
-						}
-						for nesting := d.Nesting(); d.NextBlock(nesting); {
-							switch d.Val() {
-							case "cert":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Intermediate.Certificate = d.Val()
-
-							case "key":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Intermediate.PrivateKey = d.Val()
-
-							case "format":
-								if !d.NextArg() {
-									return nil, d.ArgErr()
-								}
-								pkiCa.Intermediate.Format = d.Val()
-
-							default:
-								return nil, d.Errf("unrecognized pki ca intermediate option '%s'", d.Val())
-							}
-						}
-
-					default:
-						return nil, d.Errf("unrecognized pki ca option '%s'", d.Val())
+				case "root_cn":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
 					}
+					pkiCa.RootCommonName = d.Val()
+
+				case "intermediate_cn":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					pkiCa.IntermediateCommonName = d.Val()
+
+				case "intermediate_lifetime":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					dur, err := caddy.ParseDuration(d.Val())
+					if err != nil {
+						return nil, err
+					}
+					pkiCa.IntermediateLifetime = caddy.Duration(dur)
+
+				case "root":
+					if pkiCa.Root == nil {
+						pkiCa.Root = new(caddypki.KeyPair)
+					}
+					for nesting := d.Nesting(); d.NextBlock(nesting); {
+						switch d.Val() {
+						case "cert":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Root.Certificate = d.Val()
+
+						case "key":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Root.PrivateKey = d.Val()
+
+						case "format":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Root.Format = d.Val()
+
+						default:
+							return nil, d.Errf("unrecognized pki ca root option '%s'", d.Val())
+						}
+					}
+
+				case "intermediate":
+					if pkiCa.Intermediate == nil {
+						pkiCa.Intermediate = new(caddypki.KeyPair)
+					}
+					for nesting := d.Nesting(); d.NextBlock(nesting); {
+						switch d.Val() {
+						case "cert":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Intermediate.Certificate = d.Val()
+
+						case "key":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Intermediate.PrivateKey = d.Val()
+
+						case "format":
+							if !d.NextArg() {
+								return nil, d.ArgErr()
+							}
+							pkiCa.Intermediate.Format = d.Val()
+
+						default:
+							return nil, d.Errf("unrecognized pki ca intermediate option '%s'", d.Val())
+						}
+					}
+
+				default:
+					return nil, d.Errf("unrecognized pki ca option '%s'", d.Val())
 				}
-
-				pki.CAs[pkiCa.ID] = pkiCa
-
-			default:
-				return nil, d.Errf("unrecognized pki option '%s'", d.Val())
 			}
+
+			pki.CAs[pkiCa.ID] = pkiCa
+
+		default:
+			return nil, d.Errf("unrecognized pki option '%s'", d.Val())
 		}
 	}
-
 	return pki, nil
 }
 

caddyconfig/httpcaddyfile/serveroptions.go

@@ -46,235 +46,215 @@ type serverOptions struct {
 	Protocols            []string
 	StrictSNIHost        *bool
 	TrustedProxiesRaw    json.RawMessage
+	TrustedProxiesStrict int
 	ClientIPHeaders      []string
 	ShouldLogCredentials bool
 	Metrics              *caddyhttp.Metrics
+	Trace                bool // TODO: EXPERIMENTAL
 }
 
 func unmarshalCaddyfileServerOptions(d *caddyfile.Dispenser) (any, error) {
+	d.Next() // consume option name
+
 	serverOpts := serverOptions{}
-	for d.Next() {
+	if d.NextArg() {
+		serverOpts.ListenerAddress = d.Val()
 		if d.NextArg() {
-			serverOpts.ListenerAddress = d.Val()
-			if d.NextArg() {
+			return nil, d.ArgErr()
+		}
+	}
+	for d.NextBlock(0) {
+		switch d.Val() {
+		case "name":
+			if serverOpts.ListenerAddress == "" {
+				return nil, d.Errf("cannot set a name for a server without a listener address")
+			}
+			if !d.NextArg() {
 				return nil, d.ArgErr()
 			}
-		}
-		for nesting := d.Nesting(); d.NextBlock(nesting); {
-			switch d.Val() {
-			case "name":
-				if serverOpts.ListenerAddress == "" {
-					return nil, d.Errf("cannot set a name for a server without a listener address")
-				}
-				if !d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				serverOpts.Name = d.Val()
+			serverOpts.Name = d.Val()
 
-			case "listener_wrappers":
-				for nesting := d.Nesting(); d.NextBlock(nesting); {
-					modID := "caddy.listeners." + d.Val()
-					unm, err := caddyfile.UnmarshalModule(d, modID)
-					if err != nil {
-						return nil, err
-					}
-					listenerWrapper, ok := unm.(caddy.ListenerWrapper)
-					if !ok {
-						return nil, fmt.Errorf("module %s (%T) is not a listener wrapper", modID, unm)
-					}
-					jsonListenerWrapper := caddyconfig.JSONModuleObject(
-						listenerWrapper,
-						"wrapper",
-						listenerWrapper.(caddy.Module).CaddyModule().ID.Name(),
-						nil,
-					)
-					serverOpts.ListenerWrappersRaw = append(serverOpts.ListenerWrappersRaw, jsonListenerWrapper)
-				}
-
-			case "timeouts":
-				for nesting := d.Nesting(); d.NextBlock(nesting); {
-					switch d.Val() {
-					case "read_body":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						dur, err := caddy.ParseDuration(d.Val())
-						if err != nil {
-							return nil, d.Errf("parsing read_body timeout duration: %v", err)
-						}
-						serverOpts.ReadTimeout = caddy.Duration(dur)
-
-					case "read_header":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						dur, err := caddy.ParseDuration(d.Val())
-						if err != nil {
-							return nil, d.Errf("parsing read_header timeout duration: %v", err)
-						}
-						serverOpts.ReadHeaderTimeout = caddy.Duration(dur)
-
-					case "write":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						dur, err := caddy.ParseDuration(d.Val())
-						if err != nil {
-							return nil, d.Errf("parsing write timeout duration: %v", err)
-						}
-						serverOpts.WriteTimeout = caddy.Duration(dur)
-
-					case "idle":
-						if !d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						dur, err := caddy.ParseDuration(d.Val())
-						if err != nil {
-							return nil, d.Errf("parsing idle timeout duration: %v", err)
-						}
-						serverOpts.IdleTimeout = caddy.Duration(dur)
-
-					default:
-						return nil, d.Errf("unrecognized timeouts option '%s'", d.Val())
-					}
-				}
-			case "keepalive_interval":
-				if !d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				dur, err := caddy.ParseDuration(d.Val())
-				if err != nil {
-					return nil, d.Errf("parsing keepalive interval duration: %v", err)
-				}
-				serverOpts.KeepAliveInterval = caddy.Duration(dur)
-
-			case "max_header_size":
-				var sizeStr string
-				if !d.AllArgs(&sizeStr) {
-					return nil, d.ArgErr()
-				}
-				size, err := humanize.ParseBytes(sizeStr)
-				if err != nil {
-					return nil, d.Errf("parsing max_header_size: %v", err)
-				}
-				serverOpts.MaxHeaderBytes = int(size)
-
-			case "enable_full_duplex":
-				if d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				serverOpts.EnableFullDuplex = true
-
-			case "log_credentials":
-				if d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				serverOpts.ShouldLogCredentials = true
-
-			case "protocols":
-				protos := d.RemainingArgs()
-				for _, proto := range protos {
-					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) {
-						return nil, d.Errf("protocol %s specified more than once", proto)
-					}
-					serverOpts.Protocols = append(serverOpts.Protocols, proto)
-				}
-				if nesting := d.Nesting(); d.NextBlock(nesting) {
-					return nil, d.ArgErr()
-				}
-
-			case "strict_sni_host":
-				if d.NextArg() && d.Val() != "insecure_off" && d.Val() != "on" {
-					return nil, d.Errf("strict_sni_host only supports 'on' or 'insecure_off', got '%s'", d.Val())
-				}
-				boolVal := true
-				if d.Val() == "insecure_off" {
-					boolVal = false
-				}
-				serverOpts.StrictSNIHost = &boolVal
-
-			case "trusted_proxies":
-				if !d.NextArg() {
-					return nil, d.Err("trusted_proxies expects an IP range source module name as its first argument")
-				}
-				modID := "http.ip_sources." + d.Val()
+		case "listener_wrappers":
+			for nesting := d.Nesting(); d.NextBlock(nesting); {
+				modID := "caddy.listeners." + d.Val()
 				unm, err := caddyfile.UnmarshalModule(d, modID)
 				if err != nil {
 					return nil, err
 				}
-				source, ok := unm.(caddyhttp.IPRangeSource)
+				listenerWrapper, ok := unm.(caddy.ListenerWrapper)
 				if !ok {
-					return nil, fmt.Errorf("module %s (%T) is not an IP range source", modID, unm)
+					return nil, fmt.Errorf("module %s (%T) is not a listener wrapper", modID, unm)
 				}
-				jsonSource := caddyconfig.JSONModuleObject(
-					source,
-					"source",
-					source.(caddy.Module).CaddyModule().ID.Name(),
+				jsonListenerWrapper := caddyconfig.JSONModuleObject(
+					listenerWrapper,
+					"wrapper",
+					listenerWrapper.(caddy.Module).CaddyModule().ID.Name(),
 					nil,
 				)
-				serverOpts.TrustedProxiesRaw = jsonSource
-
-			case "client_ip_headers":
-				headers := d.RemainingArgs()
-				for _, header := range headers {
-					if sliceContains(serverOpts.ClientIPHeaders, header) {
-						return nil, d.Errf("client IP header %s specified more than once", header)
-					}
-					serverOpts.ClientIPHeaders = append(serverOpts.ClientIPHeaders, header)
-				}
-				if nesting := d.Nesting(); d.NextBlock(nesting) {
-					return nil, d.ArgErr()
-				}
-
-			case "metrics":
-				if d.NextArg() {
-					return nil, d.ArgErr()
-				}
-				if nesting := d.Nesting(); d.NextBlock(nesting) {
-					return nil, d.ArgErr()
-				}
-				serverOpts.Metrics = new(caddyhttp.Metrics)
-
-			// TODO: DEPRECATED. (August 2022)
-			case "protocol":
-				caddy.Log().Named("caddyfile").Warn("DEPRECATED: protocol sub-option will be removed soon")
-
-				for nesting := d.Nesting(); d.NextBlock(nesting); {
-					switch d.Val() {
-					case "allow_h2c":
-						caddy.Log().Named("caddyfile").Warn("DEPRECATED: allow_h2c will be removed soon; use protocols option instead")
-
-						if d.NextArg() {
-							return nil, d.ArgErr()
-						}
-						if sliceContains(serverOpts.Protocols, "h2c") {
-							return nil, d.Errf("protocol h2c already specified")
-						}
-						serverOpts.Protocols = append(serverOpts.Protocols, "h2c")
-
-					case "strict_sni_host":
-						caddy.Log().Named("caddyfile").Warn("DEPRECATED: protocol > strict_sni_host in this position will be removed soon; move up to the servers block instead")
-
-						if d.NextArg() && d.Val() != "insecure_off" && d.Val() != "on" {
-							return nil, d.Errf("strict_sni_host only supports 'on' or 'insecure_off', got '%s'", d.Val())
-						}
-						boolVal := true
-						if d.Val() == "insecure_off" {
-							boolVal = false
-						}
-						serverOpts.StrictSNIHost = &boolVal
-
-					default:
-						return nil, d.Errf("unrecognized protocol option '%s'", d.Val())
-					}
-				}
-
-			default:
-				return nil, d.Errf("unrecognized servers option '%s'", d.Val())
+				serverOpts.ListenerWrappersRaw = append(serverOpts.ListenerWrappersRaw, jsonListenerWrapper)
 			}
+
+		case "timeouts":
+			for nesting := d.Nesting(); d.NextBlock(nesting); {
+				switch d.Val() {
+				case "read_body":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					dur, err := caddy.ParseDuration(d.Val())
+					if err != nil {
+						return nil, d.Errf("parsing read_body timeout duration: %v", err)
+					}
+					serverOpts.ReadTimeout = caddy.Duration(dur)
+
+				case "read_header":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					dur, err := caddy.ParseDuration(d.Val())
+					if err != nil {
+						return nil, d.Errf("parsing read_header timeout duration: %v", err)
+					}
+					serverOpts.ReadHeaderTimeout = caddy.Duration(dur)
+
+				case "write":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					dur, err := caddy.ParseDuration(d.Val())
+					if err != nil {
+						return nil, d.Errf("parsing write timeout duration: %v", err)
+					}
+					serverOpts.WriteTimeout = caddy.Duration(dur)
+
+				case "idle":
+					if !d.NextArg() {
+						return nil, d.ArgErr()
+					}
+					dur, err := caddy.ParseDuration(d.Val())
+					if err != nil {
+						return nil, d.Errf("parsing idle timeout duration: %v", err)
+					}
+					serverOpts.IdleTimeout = caddy.Duration(dur)
+
+				default:
+					return nil, d.Errf("unrecognized timeouts option '%s'", d.Val())
+				}
+			}
+		case "keepalive_interval":
+			if !d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			dur, err := caddy.ParseDuration(d.Val())
+			if err != nil {
+				return nil, d.Errf("parsing keepalive interval duration: %v", err)
+			}
+			serverOpts.KeepAliveInterval = caddy.Duration(dur)
+
+		case "max_header_size":
+			var sizeStr string
+			if !d.AllArgs(&sizeStr) {
+				return nil, d.ArgErr()
+			}
+			size, err := humanize.ParseBytes(sizeStr)
+			if err != nil {
+				return nil, d.Errf("parsing max_header_size: %v", err)
+			}
+			serverOpts.MaxHeaderBytes = int(size)
+
+		case "enable_full_duplex":
+			if d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			serverOpts.EnableFullDuplex = true
+
+		case "log_credentials":
+			if d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			serverOpts.ShouldLogCredentials = true
+
+		case "protocols":
+			protos := d.RemainingArgs()
+			for _, proto := range protos {
+				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) {
+					return nil, d.Errf("protocol %s specified more than once", proto)
+				}
+				serverOpts.Protocols = append(serverOpts.Protocols, proto)
+			}
+			if nesting := d.Nesting(); d.NextBlock(nesting) {
+				return nil, d.ArgErr()
+			}
+
+		case "strict_sni_host":
+			if d.NextArg() && d.Val() != "insecure_off" && d.Val() != "on" {
+				return nil, d.Errf("strict_sni_host only supports 'on' or 'insecure_off', got '%s'", d.Val())
+			}
+			boolVal := true
+			if d.Val() == "insecure_off" {
+				boolVal = false
+			}
+			serverOpts.StrictSNIHost = &boolVal
+
+		case "trusted_proxies":
+			if !d.NextArg() {
+				return nil, d.Err("trusted_proxies expects an IP range source module name as its first argument")
+			}
+			modID := "http.ip_sources." + d.Val()
+			unm, err := caddyfile.UnmarshalModule(d, modID)
+			if err != nil {
+				return nil, err
+			}
+			source, ok := unm.(caddyhttp.IPRangeSource)
+			if !ok {
+				return nil, fmt.Errorf("module %s (%T) is not an IP range source", modID, unm)
+			}
+			jsonSource := caddyconfig.JSONModuleObject(
+				source,
+				"source",
+				source.(caddy.Module).CaddyModule().ID.Name(),
+				nil,
+			)
+			serverOpts.TrustedProxiesRaw = jsonSource
+
+		case "trusted_proxies_strict":
+			if d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			serverOpts.TrustedProxiesStrict = 1
+
+		case "client_ip_headers":
+			headers := d.RemainingArgs()
+			for _, header := range headers {
+				if sliceContains(serverOpts.ClientIPHeaders, header) {
+					return nil, d.Errf("client IP header %s specified more than once", header)
+				}
+				serverOpts.ClientIPHeaders = append(serverOpts.ClientIPHeaders, header)
+			}
+			if nesting := d.Nesting(); d.NextBlock(nesting) {
+				return nil, d.ArgErr()
+			}
+
+		case "metrics":
+			if d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			if nesting := d.Nesting(); d.NextBlock(nesting) {
+				return nil, d.ArgErr()
+			}
+			serverOpts.Metrics = new(caddyhttp.Metrics)
+
+		case "trace":
+			if d.NextArg() {
+				return nil, d.ArgErr()
+			}
+			serverOpts.Trace = true
+
+		default:
+			return nil, d.Errf("unrecognized servers option '%s'", d.Val())
 		}
 	}
 	return serverOpts, nil
@@ -284,7 +264,7 @@ func unmarshalCaddyfileServerOptions(d *caddyfile.Dispenser) (any, error) {
 func applyServerOptions(
 	servers map[string]*caddyhttp.Server,
 	options map[string]any,
-	warnings *[]caddyconfig.Warning,
+	_ *[]caddyconfig.Warning,
 ) error {
 	serverOpts, ok := options["servers"].([]serverOptions)
 	if !ok {
@@ -340,13 +320,21 @@ func applyServerOptions(
 		server.StrictSNIHost = opts.StrictSNIHost
 		server.TrustedProxiesRaw = opts.TrustedProxiesRaw
 		server.ClientIPHeaders = opts.ClientIPHeaders
+		server.TrustedProxiesStrict = opts.TrustedProxiesStrict
 		server.Metrics = opts.Metrics
 		if opts.ShouldLogCredentials {
 			if server.Logs == nil {
-				server.Logs = &caddyhttp.ServerLogConfig{}
+				server.Logs = new(caddyhttp.ServerLogConfig)
 			}
 			server.Logs.ShouldLogCredentials = opts.ShouldLogCredentials
 		}
+		if opts.Trace {
+			// TODO: THIS IS EXPERIMENTAL (MAY 2024)
+			if server.Logs == nil {
+				server.Logs = new(caddyhttp.ServerLogConfig)
+			}
+			server.Logs.Trace = opts.Trace
+		}
 
 		if opts.Name != "" {
 			nameReplacements[key] = opts.Name

caddyconfig/httpcaddyfile/shorthands.go

@@ -33,9 +33,10 @@ func NewShorthandReplacer() ShorthandReplacer {
 		{regexp.MustCompile(`{path\.([\w-]*)}`), "{http.request.uri.path.$1}"},
 		{regexp.MustCompile(`{file\.([\w-]*)}`), "{http.request.uri.path.file.$1}"},
 		{regexp.MustCompile(`{query\.([\w-]*)}`), "{http.request.uri.query.$1}"},
-		{regexp.MustCompile(`{re\.([\w-]*)\.([\w-]*)}`), "{http.regexp.$1.$2}"},
+		{regexp.MustCompile(`{re\.([\w-\.]*)}`), "{http.regexp.$1}"},
 		{regexp.MustCompile(`{vars\.([\w-]*)}`), "{http.vars.$1}"},
 		{regexp.MustCompile(`{rp\.([\w-\.]*)}`), "{http.reverse_proxy.$1}"},
+		{regexp.MustCompile(`{resp\.([\w-\.]*)}`), "{http.intercept.$1}"},
 		{regexp.MustCompile(`{err\.([\w-\.]*)}`), "{http.error.$1}"},
 		{regexp.MustCompile(`{file_match\.([\w-]*)}`), "{http.matchers.file.$1}"},
 	}
@@ -64,6 +65,7 @@ func placeholderShorthands() []string {
 		"{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}",
 		"{tls_client_fingerprint}", "{http.request.tls.client.fingerprint}",

caddyconfig/httpcaddyfile/tlsapp.go

@@ -24,7 +24,7 @@ import (
 	"strings"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/mholt/acmez/acme"
+	"github.com/mholt/acmez/v2/acme"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig"
@@ -118,6 +118,11 @@ func (st ServerType) buildTLSApp(
 				ap.OnDemand = true
 			}
 
+			// reuse private keys tls
+			if _, ok := sblock.pile["tls.reuse_private_keys"]; ok {
+				ap.ReusePrivateKeys = true
+			}
+
 			if keyTypeVals, ok := sblock.pile["tls.key_type"]; ok {
 				ap.KeyType = keyTypeVals[0].Value.(string)
 			}
@@ -219,7 +224,7 @@ func (st ServerType) buildTLSApp(
 				var internal, external []string
 				for _, s := range ap.SubjectsRaw {
 					// do not create Issuers for Tailscale domains; they will be given a Manager instead
-					if strings.HasSuffix(strings.ToLower(s), ".ts.net") {
+					if isTailscaleDomain(s) {
 						continue
 					}
 					if !certmagic.SubjectQualifiesForCert(s) {
@@ -339,7 +344,7 @@ func (st ServerType) buildTLSApp(
 	internalAP := &caddytls.AutomationPolicy{
 		IssuersRaw: []json.RawMessage{json.RawMessage(`{"module":"internal"}`)},
 	}
-	if autoHTTPS != "off" {
+	if autoHTTPS != "off" && autoHTTPS != "disable_certs" {
 		for h := range httpsHostsSharedWithHostlessKey {
 			al = append(al, h)
 			if !certmagic.SubjectQualifiesForPublicCert(h) {
@@ -373,15 +378,12 @@ func (st ServerType) buildTLSApp(
 				if len(ap.Issuers) == 0 && automationPolicyHasAllPublicNames(ap) {
 					// for public names, create default issuers which will later be filled in with configured global defaults
 					// (internal names will implicitly use the internal issuer at auto-https time)
-					ap.Issuers = caddytls.DefaultIssuers()
+					emailStr, _ := globalEmail.(string)
+					ap.Issuers = caddytls.DefaultIssuers(emailStr)
 
 					// if a specific endpoint is configured, can't use multiple default issuers
 					if globalACMECA != nil {
-						if strings.Contains(globalACMECA.(string), "zerossl") {
-							ap.Issuers = []certmagic.Issuer{&caddytls.ZeroSSLIssuer{ACMEIssuer: new(caddytls.ACMEIssuer)}}
-						} else {
-							ap.Issuers = []certmagic.Issuer{new(caddytls.ACMEIssuer)}
-						}
+						ap.Issuers = []certmagic.Issuer{new(caddytls.ACMEIssuer)}
 					}
 				}
 			}
@@ -454,6 +456,8 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 	globalACMEDNS := options["acme_dns"]
 	globalACMEEAB := options["acme_eab"]
 	globalPreferredChains := options["preferred_chains"]
+	globalCertLifetime := options["cert_lifetime"]
+	globalHTTPPort, globalHTTPSPort := options["http_port"], options["https_port"]
 
 	if globalEmail != nil && acmeIssuer.Email == "" {
 		acmeIssuer.Email = globalEmail.(string)
@@ -477,6 +481,27 @@ 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) {
+		if acmeIssuer.Challenges == nil {
+			acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
+		}
+		if acmeIssuer.Challenges.HTTP == nil {
+			acmeIssuer.Challenges.HTTP = new(caddytls.HTTPChallengeConfig)
+		}
+		acmeIssuer.Challenges.HTTP.AlternatePort = globalHTTPPort.(int)
+	}
+	if globalHTTPSPort != nil && (acmeIssuer.Challenges == nil || acmeIssuer.Challenges.TLSALPN == nil || acmeIssuer.Challenges.TLSALPN.AlternatePort == 0) {
+		if acmeIssuer.Challenges == nil {
+			acmeIssuer.Challenges = new(caddytls.ChallengesConfig)
+		}
+		if acmeIssuer.Challenges.TLSALPN == nil {
+			acmeIssuer.Challenges.TLSALPN = new(caddytls.TLSALPNChallengeConfig)
+		}
+		acmeIssuer.Challenges.TLSALPN.AlternatePort = globalHTTPSPort.(int)
+	}
+	if globalCertLifetime != nil && acmeIssuer.CertificateLifetime == 0 {
+		acmeIssuer.CertificateLifetime = globalCertLifetime.(caddy.Duration)
+	}
 	return nil
 }
 
@@ -485,7 +510,11 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 // for any other automation policies. A nil policy (and no error) will be
 // returned if there are no default/global options. However, if always is
 // true, a non-nil value will always be returned (unless there is an error).
-func newBaseAutomationPolicy(options map[string]any, warnings []caddyconfig.Warning, always bool) (*caddytls.AutomationPolicy, error) {
+func newBaseAutomationPolicy(
+	options map[string]any,
+	_ []caddyconfig.Warning,
+	always bool,
+) (*caddytls.AutomationPolicy, error) {
 	issuers, hasIssuers := options["cert_issuer"]
 	_, hasLocalCerts := options["local_certs"]
 	keyType, hasKeyType := options["key_type"]
@@ -587,6 +616,7 @@ outer:
 				aps[i].MustStaple == aps[j].MustStaple &&
 				aps[i].KeyType == aps[j].KeyType &&
 				aps[i].OnDemand == aps[j].OnDemand &&
+				aps[i].ReusePrivateKeys == aps[j].ReusePrivateKeys &&
 				aps[i].RenewalWindowRatio == aps[j].RenewalWindowRatio {
 				if len(aps[i].SubjectsRaw) > 0 && len(aps[j].SubjectsRaw) == 0 {
 					// later policy (at j) has no subjects ("catch-all"), so we can
@@ -660,17 +690,33 @@ func automationPolicyShadows(i int, aps []*caddytls.AutomationPolicy) int {
 // subjectQualifiesForPublicCert is like certmagic.SubjectQualifiesForPublicCert() except
 // that this allows domains with multiple wildcard levels like '*.*.example.com' to qualify
 // if the automation policy has OnDemand enabled (i.e. this function is more lenient).
+//
+// IP subjects are considered as non-qualifying for public certs. Technically, there are
+// now public ACME CAs as well as non-ACME CAs that issue IP certificates. But this function
+// is used solely for implicit automation (defaults), where it gets really complicated to
+// keep track of which issuers support IP certificates in which circumstances. Currently,
+// issuers that support IP certificates are very few, and all require some sort of config
+// from the user anyway (such as an account credential). Since we cannot implicitly and
+// automatically get public IP certs without configuration from the user, we treat IPs as
+// not qualifying for public certificates. Users should expressly configure an issuer
+// that supports IP certs for that purpose.
 func subjectQualifiesForPublicCert(ap *caddytls.AutomationPolicy, subj string) bool {
 	return !certmagic.SubjectIsIP(subj) &&
 		!certmagic.SubjectIsInternal(subj) &&
 		(strings.Count(subj, "*.") < 2 || ap.OnDemand)
 }
 
+// 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 {
-		if !subjectQualifiesForPublicCert(ap, subj) {
+		if !subjectQualifiesForPublicCert(ap, subj) || isTailscaleDomain(subj) {
 			return false
 		}
 	}
 	return true
 }
+
+func isTailscaleDomain(name string) bool {
+	return strings.HasSuffix(strings.ToLower(name), ".ts.net")
+}

caddyconfig/httploader.go

@@ -181,19 +181,16 @@ func (hl HTTPLoader) makeClient(ctx caddy.Context) (*http.Client, error) {
 			if err != nil {
 				return nil, fmt.Errorf("getting server identity credentials: %v", err)
 			}
-			if tlsConfig == nil {
-				tlsConfig = new(tls.Config)
-			}
-			tlsConfig.Certificates = certs
+			// See https://github.com/securego/gosec/issues/1054#issuecomment-2072235199
+			//nolint:gosec
+			tlsConfig = &tls.Config{Certificates: certs}
 		} else if hl.TLS.ClientCertificateFile != "" && hl.TLS.ClientCertificateKeyFile != "" {
 			cert, err := tls.LoadX509KeyPair(hl.TLS.ClientCertificateFile, hl.TLS.ClientCertificateKeyFile)
 			if err != nil {
 				return nil, err
 			}
-			if tlsConfig == nil {
-				tlsConfig = new(tls.Config)
-			}
-			tlsConfig.Certificates = []tls.Certificate{cert}
+			//nolint:gosec
+			tlsConfig = &tls.Config{Certificates: []tls.Certificate{cert}}
 		}
 
 		// trusted server certs

caddytest/caddytest.go

@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"io/fs"
 	"log"
 	"net"
 	"net/http"
@@ -35,7 +36,7 @@ type Defaults struct {
 	// Port we expect caddy to listening on
 	AdminPort int
 	// Certificates we expect to be loaded before attempting to run the tests
-	Certifcates []string
+	Certificates []string
 	// TestRequestTimeout is the time to wait for a http request to
 	TestRequestTimeout time.Duration
 	// LoadRequestTimeout is the time to wait for the config to be loaded against the caddy server
@@ -45,7 +46,7 @@ type Defaults struct {
 // Default testing values
 var Default = Defaults{
 	AdminPort:          2999, // different from what a real server also running on a developer's machine might be
-	Certifcates:        []string{"/caddy.localhost.crt", "/caddy.localhost.key"},
+	Certificates:       []string{"/caddy.localhost.crt", "/caddy.localhost.key"},
 	TestRequestTimeout: 5 * time.Second,
 	LoadRequestTimeout: 5 * time.Second,
 }
@@ -59,11 +60,11 @@ var (
 type Tester struct {
 	Client       *http.Client
 	configLoaded bool
-	t            *testing.T
+	t            testing.TB
 }
 
 // NewTester will create a new testing client with an attached cookie jar
-func NewTester(t *testing.T) *Tester {
+func NewTester(t testing.TB) *Tester {
 	jar, err := cookiejar.New(nil)
 	if err != nil {
 		t.Fatalf("failed to create cookiejar: %s", err)
@@ -120,7 +121,6 @@ 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))
 			if err != nil {
 				tc.t.Log("unable to read the current config")
@@ -136,6 +136,20 @@ func (tc *Tester) initServer(rawConfig string, configType string) error {
 	})
 
 	rawConfig = prependCaddyFilePath(rawConfig)
+	// normalize JSON config
+	if configType == "json" {
+		tc.t.Logf("Before: %s", rawConfig)
+		var conf any
+		if err := json.Unmarshal([]byte(rawConfig), &conf); err != nil {
+			return err
+		}
+		c, err := json.Marshal(conf)
+		if err != nil {
+			return err
+		}
+		rawConfig = string(c)
+		tc.t.Logf("After: %s", rawConfig)
+	}
 	client := &http.Client{
 		Timeout: Default.LoadRequestTimeout,
 	}
@@ -229,10 +243,10 @@ const initConfig = `{
 
 // validateTestPrerequisites ensures the certificates are available in the
 // designated path and Caddy sub-process is running.
-func validateTestPrerequisites(t *testing.T) error {
+func validateTestPrerequisites(t testing.TB) error {
 	// check certificates are found
-	for _, certName := range Default.Certifcates {
-		if _, err := os.Stat(getIntegrationDir() + certName); os.IsNotExist(err) {
+	for _, certName := range Default.Certificates {
+		if _, err := os.Stat(getIntegrationDir() + certName); errors.Is(err, fs.ErrNotExist) {
 			return fmt.Errorf("caddy integration test certificates (%s) not found", certName)
 		}
 	}
@@ -373,7 +387,7 @@ func (tc *Tester) AssertRedirect(requestURI string, expectedToLocation string, e
 }
 
 // CompareAdapt adapts a config and then compares it against an expected result
-func CompareAdapt(t *testing.T, filename, rawConfig string, adapterName string, expectedResponse string) bool {
+func CompareAdapt(t testing.TB, filename, rawConfig string, adapterName string, expectedResponse string) bool {
 	cfgAdapter := caddyconfig.GetAdapter(adapterName)
 	if cfgAdapter == nil {
 		t.Logf("unrecognized config adapter '%s'", adapterName)
@@ -432,7 +446,7 @@ func CompareAdapt(t *testing.T, filename, rawConfig string, adapterName string,
 }
 
 // AssertAdapt adapts a config and then tests it against an expected result
-func AssertAdapt(t *testing.T, rawConfig string, adapterName string, expectedResponse string) {
+func AssertAdapt(t testing.TB, rawConfig string, adapterName string, expectedResponse string) {
 	ok := CompareAdapt(t, "Caddyfile", rawConfig, adapterName, expectedResponse)
 	if !ok {
 		t.Fail()
@@ -441,7 +455,7 @@ func AssertAdapt(t *testing.T, rawConfig string, adapterName string, expectedRes
 
 // Generic request functions
 
-func applyHeaders(t *testing.T, req *http.Request, requestHeaders []string) {
+func applyHeaders(t testing.TB, req *http.Request, requestHeaders []string) {
 	requestContentType := ""
 	for _, requestHeader := range requestHeaders {
 		arr := strings.SplitAfterN(requestHeader, ":", 2)

caddytest/caddytest_test.go

@@ -1,6 +1,7 @@
 package caddytest
 
 import (
+	"net/http"
 	"strings"
 	"testing"
 )
@@ -31,3 +32,98 @@ func TestReplaceCertificatePaths(t *testing.T) {
 		t.Error("expected redirect uri to be unchanged")
 	}
 }
+
+func TestLoadUnorderedJSON(t *testing.T) {
+	tester := NewTester(t)
+	tester.InitServer(`
+	{
+		"logging": {
+			"logs": {
+				"default": {
+					"level": "DEBUG",
+					"writer": {
+						"output": "stdout"
+					}
+				},
+				"sStdOutLogs": {
+					"level": "DEBUG",
+					"writer": {
+						"output": "stdout"
+					},
+					"include": [
+						"http.*",
+						"admin.*"
+					]
+				},
+				"sFileLogs": {
+					"level": "DEBUG",
+					"writer": {
+						"output": "stdout"
+					},
+					"include": [
+						"http.*",
+						"admin.*"
+					]
+				}
+			}
+		},
+		"admin": {
+			"listen": "localhost:2999"
+		},
+		"apps": {
+			"pki": {
+				"certificate_authorities" : {
+				  "local" : {
+					"install_trust": false
+				  }
+				}
+			},
+			"http": {
+				"http_port": 9080,
+				"https_port": 9443,
+				"servers": {
+					"s_server": {
+						"listen": [
+							":9443",
+							":9080"
+						],
+						"routes": [
+							{
+								"handle": [
+									{
+										"handler": "static_response",
+										"body": "Hello"
+									}
+								]
+							},
+							{
+								"match": [
+									{
+										"host": [
+											"localhost",
+											"127.0.0.1"
+										]
+									}
+								]
+							}
+						],
+						"logs": {
+							"default_logger_name": "sStdOutLogs",
+							"logger_names": {
+								"localhost": "sStdOutLogs",
+								"127.0.0.1": "sFileLogs"
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+  `, "json")
+	req, err := http.NewRequest(http.MethodGet, "http://localhost:9080/", nil)
+	if err != nil {
+		t.Fail()
+		return
+	}
+	tester.AssertResponseCode(req, 200)
+}

caddytest/integration/acme_test.go

@@ -0,0 +1,206 @@
+package integration
+
+import (
+	"context"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddytest"
+	"github.com/mholt/acmez/v2"
+	"github.com/mholt/acmez/v2/acme"
+	smallstepacme "github.com/smallstep/certificates/acme"
+	"go.uber.org/zap"
+)
+
+const acmeChallengePort = 9081
+
+// Test the basic functionality of Caddy's ACME server
+func TestACMEServerWithDefaults(t *testing.T) {
+	ctx := context.Background()
+	logger, err := zap.NewDevelopment()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	tester := caddytest.NewTester(t)
+	tester.InitServer(`
+	{
+		skip_install_trust
+		admin localhost:2999
+		http_port     9080
+		https_port    9443
+		local_certs
+	}
+	acme.localhost {
+		acme_server
+	}
+  `, "caddyfile")
+
+	client := acmez.Client{
+		Client: &acme.Client{
+			Directory:  "https://acme.localhost:9443/acme/local/directory",
+			HTTPClient: tester.Client,
+			Logger:     logger,
+		},
+		ChallengeSolvers: map[string]acmez.Solver{
+			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
+		},
+	}
+
+	accountPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating account key: %v", err)
+	}
+	account := acme.Account{
+		Contact:              []string{"mailto:you@example.com"},
+		TermsOfServiceAgreed: true,
+		PrivateKey:           accountPrivateKey,
+	}
+	account, err = client.NewAccount(ctx, account)
+	if err != nil {
+		t.Errorf("new account: %v", err)
+		return
+	}
+
+	// Every certificate needs a key.
+	certPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating certificate key: %v", err)
+		return
+	}
+
+	certs, err := client.ObtainCertificateForSANs(ctx, account, certPrivateKey, []string{"localhost"})
+	if err != nil {
+		t.Errorf("obtaining certificate: %v", err)
+		return
+	}
+
+	// ACME servers should usually give you the entire certificate chain
+	// in PEM format, and sometimes even alternate chains! It's up to you
+	// which one(s) to store and use, but whatever you do, be sure to
+	// store the certificate and key somewhere safe and secure, i.e. don't
+	// lose them!
+	for _, cert := range certs {
+		t.Logf("Certificate %q:\n%s\n\n", cert.URL, cert.ChainPEM)
+	}
+}
+
+func TestACMEServerWithMismatchedChallenges(t *testing.T) {
+	ctx := context.Background()
+	logger := caddy.Log().Named("acmez")
+
+	tester := caddytest.NewTester(t)
+	tester.InitServer(`
+	{
+		skip_install_trust
+		admin localhost:2999
+		http_port     9080
+		https_port    9443
+		local_certs
+	}
+	acme.localhost {
+		acme_server {
+			challenges tls-alpn-01
+		}
+	}
+  `, "caddyfile")
+
+	client := acmez.Client{
+		Client: &acme.Client{
+			Directory:  "https://acme.localhost:9443/acme/local/directory",
+			HTTPClient: tester.Client,
+			Logger:     logger,
+		},
+		ChallengeSolvers: map[string]acmez.Solver{
+			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
+		},
+	}
+
+	accountPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating account key: %v", err)
+	}
+	account := acme.Account{
+		Contact:              []string{"mailto:you@example.com"},
+		TermsOfServiceAgreed: true,
+		PrivateKey:           accountPrivateKey,
+	}
+	account, err = client.NewAccount(ctx, account)
+	if err != nil {
+		t.Errorf("new account: %v", err)
+		return
+	}
+
+	// Every certificate needs a key.
+	certPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating certificate key: %v", err)
+		return
+	}
+
+	certs, err := client.ObtainCertificateForSANs(ctx, account, certPrivateKey, []string{"localhost"})
+	if len(certs) > 0 {
+		t.Errorf("expected '0' certificates, but received '%d'", len(certs))
+	}
+	if err == nil {
+		t.Error("expected errors, but received none")
+	}
+	const expectedErrMsg = "no solvers available for remaining challenges (configured=[http-01] offered=[tls-alpn-01] remaining=[tls-alpn-01])"
+	if !strings.Contains(err.Error(), expectedErrMsg) {
+		t.Errorf(`received error message does not match expectation: expected="%s" received="%s"`, expectedErrMsg, err.Error())
+	}
+}
+
+// naiveHTTPSolver is a no-op acmez.Solver for example purposes only.
+type naiveHTTPSolver struct {
+	srv    *http.Server
+	logger *zap.Logger
+}
+
+func (s *naiveHTTPSolver) Present(ctx context.Context, challenge acme.Challenge) error {
+	smallstepacme.InsecurePortHTTP01 = acmeChallengePort
+	s.srv = &http.Server{
+		Addr: fmt.Sprintf(":%d", acmeChallengePort),
+		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			host, _, err := net.SplitHostPort(r.Host)
+			if err != nil {
+				host = r.Host
+			}
+			s.logger.Info("received request on challenge server", zap.String("path", r.URL.Path))
+			if r.Method == "GET" && r.URL.Path == challenge.HTTP01ResourcePath() && strings.EqualFold(host, challenge.Identifier.Value) {
+				w.Header().Add("Content-Type", "text/plain")
+				w.Write([]byte(challenge.KeyAuthorization))
+				r.Close = true
+				s.logger.Info("served key authentication",
+					zap.String("identifier", challenge.Identifier.Value),
+					zap.String("challenge", "http-01"),
+					zap.String("remote", r.RemoteAddr),
+				)
+			}
+		}),
+	}
+	l, err := net.Listen("tcp", fmt.Sprintf(":%d", acmeChallengePort))
+	if err != nil {
+		return err
+	}
+	s.logger.Info("present challenge", zap.Any("challenge", challenge))
+	go s.srv.Serve(l)
+	return nil
+}
+
+func (s naiveHTTPSolver) CleanUp(ctx context.Context, challenge acme.Challenge) error {
+	smallstepacme.InsecurePortHTTP01 = 0
+	s.logger.Info("cleanup", zap.Any("challenge", challenge))
+	if s.srv != nil {
+		s.srv.Close()
+	}
+	return nil
+}

caddytest/integration/acmeserver_test.go

@@ -1,9 +1,17 @@
 package integration
 
 import (
+	"context"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"strings"
 	"testing"
 
 	"github.com/caddyserver/caddy/v2/caddytest"
+	"github.com/mholt/acmez/v2"
+	"github.com/mholt/acmez/v2/acme"
+	"go.uber.org/zap"
 )
 
 func TestACMEServerDirectory(t *testing.T) {
@@ -31,3 +39,166 @@ func TestACMEServerDirectory(t *testing.T) {
 		`{"newNonce":"https://acme.localhost:9443/acme/local/new-nonce","newAccount":"https://acme.localhost:9443/acme/local/new-account","newOrder":"https://acme.localhost:9443/acme/local/new-order","revokeCert":"https://acme.localhost:9443/acme/local/revoke-cert","keyChange":"https://acme.localhost:9443/acme/local/key-change"}
 `)
 }
+
+func TestACMEServerAllowPolicy(t *testing.T) {
+	tester := caddytest.NewTester(t)
+	tester.InitServer(`
+	{
+		skip_install_trust
+		local_certs
+		admin localhost:2999
+		http_port     9080
+		https_port    9443
+		pki {
+			ca local {
+				name "Caddy Local Authority"
+			}
+		}
+	}
+	acme.localhost {
+		acme_server {
+			challenges http-01
+			allow {
+				domains localhost
+			}
+		}
+	}
+  `, "caddyfile")
+
+	ctx := context.Background()
+	logger, err := zap.NewDevelopment()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	client := acmez.Client{
+		Client: &acme.Client{
+			Directory:  "https://acme.localhost:9443/acme/local/directory",
+			HTTPClient: tester.Client,
+			Logger:     logger,
+		},
+		ChallengeSolvers: map[string]acmez.Solver{
+			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
+		},
+	}
+
+	accountPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating account key: %v", err)
+	}
+	account := acme.Account{
+		Contact:              []string{"mailto:you@example.com"},
+		TermsOfServiceAgreed: true,
+		PrivateKey:           accountPrivateKey,
+	}
+	account, err = client.NewAccount(ctx, account)
+	if err != nil {
+		t.Errorf("new account: %v", err)
+		return
+	}
+
+	// Every certificate needs a key.
+	certPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating certificate key: %v", err)
+		return
+	}
+	{
+		certs, err := client.ObtainCertificateForSANs(ctx, account, certPrivateKey, []string{"localhost"})
+		if err != nil {
+			t.Errorf("obtaining certificate for allowed domain: %v", err)
+			return
+		}
+
+		// ACME servers should usually give you the entire certificate chain
+		// in PEM format, and sometimes even alternate chains! It's up to you
+		// which one(s) to store and use, but whatever you do, be sure to
+		// store the certificate and key somewhere safe and secure, i.e. don't
+		// lose them!
+		for _, cert := range certs {
+			t.Logf("Certificate %q:\n%s\n\n", cert.URL, cert.ChainPEM)
+		}
+	}
+	{
+		_, err := client.ObtainCertificateForSANs(ctx, account, certPrivateKey, []string{"not-matching.localhost"})
+		if err == nil {
+			t.Errorf("obtaining certificate for 'not-matching.localhost' domain")
+		} else if err != nil && !strings.Contains(err.Error(), "urn:ietf:params:acme:error:rejectedIdentifier") {
+			t.Logf("unexpected error: %v", err)
+		}
+	}
+}
+
+func TestACMEServerDenyPolicy(t *testing.T) {
+	tester := caddytest.NewTester(t)
+	tester.InitServer(`
+	{
+		skip_install_trust
+		local_certs
+		admin localhost:2999
+		http_port     9080
+		https_port    9443
+		pki {
+			ca local {
+				name "Caddy Local Authority"
+			}
+		}
+	}
+	acme.localhost {
+		acme_server {
+			deny {
+				domains deny.localhost
+			}
+		}
+	}
+  `, "caddyfile")
+
+	ctx := context.Background()
+	logger, err := zap.NewDevelopment()
+	if err != nil {
+		t.Error(err)
+		return
+	}
+
+	client := acmez.Client{
+		Client: &acme.Client{
+			Directory:  "https://acme.localhost:9443/acme/local/directory",
+			HTTPClient: tester.Client,
+			Logger:     logger,
+		},
+		ChallengeSolvers: map[string]acmez.Solver{
+			acme.ChallengeTypeHTTP01: &naiveHTTPSolver{logger: logger},
+		},
+	}
+
+	accountPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating account key: %v", err)
+	}
+	account := acme.Account{
+		Contact:              []string{"mailto:you@example.com"},
+		TermsOfServiceAgreed: true,
+		PrivateKey:           accountPrivateKey,
+	}
+	account, err = client.NewAccount(ctx, account)
+	if err != nil {
+		t.Errorf("new account: %v", err)
+		return
+	}
+
+	// Every certificate needs a key.
+	certPrivateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Errorf("generating certificate key: %v", err)
+		return
+	}
+	{
+		_, err := client.ObtainCertificateForSANs(ctx, account, certPrivateKey, []string{"deny.localhost"})
+		if err == nil {
+			t.Errorf("obtaining certificate for 'deny.localhost' domain")
+		} else if err != nil && !strings.Contains(err.Error(), "urn:ietf:params:acme:error:rejectedIdentifier") {
+			t.Logf("unexpected error: %v", err)
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/acme_server_custom_challenges.caddyfiletest

@@ -0,0 +1,65 @@
+{
+	pki {
+		ca custom-ca {
+			name "Custom CA"
+		}
+	}
+}
+
+acme.example.com {
+	acme_server {
+		ca custom-ca
+		challenges dns-01
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"acme.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"ca": "custom-ca",
+													"challenges": [
+														"dns-01"
+													],
+													"handler": "acme_server"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		},
+		"pki": {
+			"certificate_authorities": {
+				"custom-ca": {
+					"name": "Custom CA"
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/acme_server_default_challenges.caddyfiletest

@@ -0,0 +1,62 @@
+{
+	pki {
+		ca custom-ca {
+			name "Custom CA"
+		}
+	}
+}
+
+acme.example.com {
+	acme_server {
+		ca custom-ca
+		challenges
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"acme.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"ca": "custom-ca",
+													"handler": "acme_server"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		},
+		"pki": {
+			"certificate_authorities": {
+				"custom-ca": {
+					"name": "Custom CA"
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/acme_server_multi_custom_challenges.caddyfiletest

@@ -0,0 +1,66 @@
+{
+	pki {
+		ca custom-ca {
+			name "Custom CA"
+		}
+	}
+}
+
+acme.example.com {
+	acme_server {
+		ca custom-ca
+		challenges dns-01 http-01
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"acme.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"ca": "custom-ca",
+													"challenges": [
+														"dns-01",
+														"http-01"
+													],
+													"handler": "acme_server"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		},
+		"pki": {
+			"certificate_authorities": {
+				"custom-ca": {
+					"name": "Custom CA"
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/acme_server_sign_with_root.caddyfiletest

@@ -0,0 +1,67 @@
+{
+	pki {
+		ca internal {
+			name "Internal"
+			root_cn "Internal Root Cert"
+			intermediate_cn "Internal Intermediate Cert"
+		}
+    }
+}
+
+acme.example.com {
+	acme_server {
+		ca internal
+		sign_with_root
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"acme.example.com"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"ca": "internal",
+													"handler": "acme_server",
+													"sign_with_root": true
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		},
+		"pki": {
+			"certificate_authorities": {
+				"internal": {
+					"name": "Internal",
+					"root_common_name": "Internal Root Cert",
+					"intermediate_common_name": "Internal Intermediate Cert"
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/error_multi_site_blocks.caddyfiletest

@@ -0,0 +1,245 @@
+foo.localhost {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /fivehundred* "Internal Server Error" 500
+
+	handle_errors 5xx {
+		respond "Error In range [500 .. 599]"
+	}
+	handle_errors 410 {
+		respond "404 or 410 error"
+	}
+}
+
+bar.localhost {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /fivehundred* "Internal Server Error" 500
+
+	handle_errors 5xx {
+		respond "Error In range [500 .. 599] from second site"
+	}
+	handle_errors 410 {
+		respond "404 or 410 error from second site"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"foo.localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Internal Server Error",
+													"handler": "error",
+													"status_code": 500
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/fivehundred*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						},
+						{
+							"match": [
+								{
+									"host": [
+										"bar.localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Internal Server Error",
+													"handler": "error",
+													"status_code": 500
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/fivehundred*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"errors": {
+						"routes": [
+							{
+								"match": [
+									{
+										"host": [
+											"foo.localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "404 or 410 error",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} in [410]"
+													}
+												]
+											},
+											{
+												"handle": [
+													{
+														"body": "Error In range [500 .. 599]",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 500 \u0026\u0026 {http.error.status_code} \u003c= 599"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							},
+							{
+								"match": [
+									{
+										"host": [
+											"bar.localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "404 or 410 error from second site",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} in [410]"
+													}
+												]
+											},
+											{
+												"handle": [
+													{
+														"body": "Error In range [500 .. 599] from second site",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 500 \u0026\u0026 {http.error.status_code} \u003c= 599"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							}
+						]
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/error_range_codes.caddyfiletest

@@ -0,0 +1,120 @@
+{
+	http_port 3010
+}
+localhost:3010 {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /hidden* "Not found" 404
+
+	handle_errors 4xx {
+		respond "Error in the [400 .. 499] range"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"http_port": 3010,
+			"servers": {
+				"srv0": {
+					"listen": [
+						":3010"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Not found",
+													"handler": "error",
+													"status_code": 404
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/hidden*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"errors": {
+						"routes": [
+							{
+								"match": [
+									{
+										"host": [
+											"localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "Error in the [400 .. 499] range",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 400 \u0026\u0026 {http.error.status_code} \u003c= 499"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							}
+						]
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/error_range_simple_codes.caddyfiletest

@@ -0,0 +1,153 @@
+{
+	http_port 2099
+}
+localhost:2099 {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /threehundred* "Moved Permanently" 301
+	error /internalerr* "Internal Server Error" 500
+
+	handle_errors 500 3xx {
+		respond "Error code is equal to 500 or in the [300..399] range"
+	}
+	handle_errors 4xx {
+		respond "Error in the [400 .. 499] range"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"http_port": 2099,
+			"servers": {
+				"srv0": {
+					"listen": [
+						":2099"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Moved Permanently",
+													"handler": "error",
+													"status_code": 301
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/threehundred*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Internal Server Error",
+													"handler": "error",
+													"status_code": 500
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/internalerr*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"errors": {
+						"routes": [
+							{
+								"match": [
+									{
+										"host": [
+											"localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "Error in the [400 .. 499] range",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 400 \u0026\u0026 {http.error.status_code} \u003c= 499"
+													}
+												]
+											},
+											{
+												"handle": [
+													{
+														"body": "Error code is equal to 500 or in the [300..399] range",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 300 \u0026\u0026 {http.error.status_code} \u003c= 399 || {http.error.status_code} in [500]"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							}
+						]
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/error_simple_codes.caddyfiletest

@@ -0,0 +1,120 @@
+{
+	http_port 3010
+}
+localhost:3010 {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /hidden* "Not found" 404
+
+	handle_errors 404 410 {
+		respond "404 or 410 error"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"http_port": 3010,
+			"servers": {
+				"srv0": {
+					"listen": [
+						":3010"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Not found",
+													"handler": "error",
+													"status_code": 404
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/hidden*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"errors": {
+						"routes": [
+							{
+								"match": [
+									{
+										"host": [
+											"localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "404 or 410 error",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} in [404, 410]"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							}
+						]
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/error_sort.caddyfiletest

@@ -0,0 +1,148 @@
+{
+	http_port 2099
+}
+localhost:2099 {
+	root * /srv
+	error /private* "Unauthorized" 410
+	error /hidden* "Not found" 404
+	error /internalerr* "Internal Server Error" 500
+
+	handle_errors {
+		respond "Fallback route: code outside the [400..499] range"
+	}
+	handle_errors 4xx {
+		respond "Error in the [400 .. 499] range"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"http_port": 2099,
+			"servers": {
+				"srv0": {
+					"listen": [
+						":2099"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "vars",
+													"root": "/srv"
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Internal Server Error",
+													"handler": "error",
+													"status_code": 500
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/internalerr*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Unauthorized",
+													"handler": "error",
+													"status_code": 410
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/private*"
+													]
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"error": "Not found",
+													"handler": "error",
+													"status_code": 404
+												}
+											],
+											"match": [
+												{
+													"path": [
+														"/hidden*"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					],
+					"errors": {
+						"routes": [
+							{
+								"match": [
+									{
+										"host": [
+											"localhost"
+										]
+									}
+								],
+								"handle": [
+									{
+										"handler": "subroute",
+										"routes": [
+											{
+												"handle": [
+													{
+														"body": "Error in the [400 .. 499] range",
+														"handler": "static_response"
+													}
+												],
+												"match": [
+													{
+														"expression": "{http.error.status_code} \u003e= 400 \u0026\u0026 {http.error.status_code} \u003c= 499"
+													}
+												]
+											},
+											{
+												"handle": [
+													{
+														"body": "Fallback route: code outside the [400..499] range",
+														"handler": "static_response"
+													}
+												]
+											}
+										]
+									}
+								],
+								"terminal": true
+							}
+						]
+					}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/expression_quotes.caddyfiletest

@@ -1,3 +1,7 @@
+(snippet) {
+	@g `{http.error.status_code} == 404`
+}
+
 example.com
 
 @a expression {http.error.status_code} == 400
@@ -14,6 +18,12 @@ abort @d
 
 @e expression `{http.error.status_code} == 404`
 abort @e
+
+@f `{http.error.status_code} == 404`
+abort @f
+
+import snippet
+abort @g
 ----------
 {
 	"apps": {
@@ -84,7 +94,10 @@ abort @e
 											],
 											"match": [
 												{
-													"expression": "{http.error.status_code} == 403"
+													"expression": {
+														"expr": "{http.error.status_code} == 403",
+														"name": "d"
+													}
 												}
 											]
 										},
@@ -97,7 +110,42 @@ abort @e
 											],
 											"match": [
 												{
-													"expression": "{http.error.status_code} == 404"
+													"expression": {
+														"expr": "{http.error.status_code} == 404",
+														"name": "e"
+													}
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"abort": true,
+													"handler": "static_response"
+												}
+											],
+											"match": [
+												{
+													"expression": {
+														"expr": "{http.error.status_code} == 404",
+														"name": "f"
+													}
+												}
+											]
+										},
+										{
+											"handle": [
+												{
+													"abort": true,
+													"handler": "static_response"
+												}
+											],
+											"match": [
+												{
+													"expression": {
+														"expr": "{http.error.status_code} == 404",
+														"name": "g"
+													}
 												}
 											]
 										}

caddytest/integration/caddyfile_adapt/file_server_etag_file_extensions.caddyfiletest

@@ -0,0 +1,40 @@
+:8080 {
+	root * ./
+	file_server {
+		etag_file_extensions .b3sum .sha256
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":8080"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"handler": "vars",
+									"root": "./"
+								},
+								{
+									"etag_file_extensions": [
+										".b3sum",
+										".sha256"
+									],
+									"handler": "file_server",
+									"hide": [
+										"./Caddyfile"
+									]
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/global_options.caddyfiletest

@@ -69,7 +69,10 @@
 					}
 				],
 				"on_demand": {
-					"ask": "https://example.com",
+					"permission": {
+						"endpoint": "https://example.com",
+						"module": "http"
+					},
 					"rate_limit": {
 						"interval": 30000000000,
 						"burst": 20

caddytest/integration/caddyfile_adapt/global_options_acme.caddyfiletest

@@ -63,6 +63,14 @@
 						"issuers": [
 							{
 								"ca": "https://example.com",
+								"challenges": {
+									"http": {
+										"alternate_port": 8080
+									},
+									"tls-alpn": {
+										"alternate_port": 8443
+									}
+								},
 								"email": "test@example.com",
 								"external_account": {
 									"key_id": "4K2scIVbBpNd-78scadB2g",
@@ -78,7 +86,10 @@
 					}
 				],
 				"on_demand": {
-					"ask": "https://example.com",
+					"permission": {
+						"endpoint": "https://example.com",
+						"module": "http"
+					},
 					"rate_limit": {
 						"interval": 30000000000,
 						"burst": 20

caddytest/integration/caddyfile_adapt/global_options_admin.caddyfiletest

@@ -71,7 +71,10 @@
 					}
 				],
 				"on_demand": {
-					"ask": "https://example.com",
+					"permission": {
+						"endpoint": "https://example.com",
+						"module": "http"
+					},
 					"rate_limit": {
 						"interval": 30000000000,
 						"burst": 20

caddytest/integration/caddyfile_adapt/global_options_preferred_chains.caddyfiletest

@@ -40,12 +40,6 @@ example.com
 								"preferred_chains": {
 									"smallest": true
 								}
-							},
-							{
-								"module": "zerossl",
-								"preferred_chains": {
-									"smallest": true
-								}
 							}
 						]
 					}

caddytest/integration/caddyfile_adapt/http_valid_directive_like_site_address.caddyfiletest

@@ -0,0 +1,46 @@
+http://handle {
+	file_server
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"handle"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handler": "file_server",
+													"hide": [
+														"./Caddyfile"
+													]
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/import_args_snippet.caddyfiletest

@@ -72,8 +72,12 @@ b.example.com {
 					],
 					"logs": {
 						"logger_names": {
-							"a.example.com": "log0",
-							"b.example.com": "log1"
+							"a.example.com": [
+								"log0"
+							],
+							"b.example.com": [
+								"log1"
+							]
 						}
 					}
 				}

caddytest/integration/caddyfile_adapt/intercept_response.caddyfiletest

@@ -0,0 +1,230 @@
+localhost
+
+respond "To intercept"
+
+intercept {
+	@500 status 500
+	replace_status @500 400
+
+	@all status 2xx 3xx 4xx 5xx
+	replace_status @all {http.error.status_code}
+
+	replace_status {http.error.status_code}
+
+	@accel header X-Accel-Redirect *
+	handle_response @accel {
+		respond "Header X-Accel-Redirect!"
+	}
+
+	@another {
+		header X-Another *
+	}
+	handle_response @another {
+		respond "Header X-Another!"
+	}
+
+	@401 status 401
+	handle_response @401 {
+		respond "Status 401!"
+	}
+
+	handle_response {
+		respond "Any! This should be last in the JSON!"
+	}
+
+	@403 {
+		status 403
+	}
+	handle_response @403 {
+		respond "Status 403!"
+	}
+
+	@multi {
+		status 401 403
+		status 404
+		header Foo *
+		header Bar *
+	}
+	handle_response @multi {
+		respond "Headers Foo, Bar AND statuses 401, 403 and 404!"
+	}
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":443"
+					],
+					"routes": [
+						{
+							"match": [
+								{
+									"host": [
+										"localhost"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "subroute",
+									"routes": [
+										{
+											"handle": [
+												{
+													"handle_response": [
+														{
+															"match": {
+																"status_code": [
+																	500
+																]
+															},
+															"status_code": 400
+														},
+														{
+															"match": {
+																"status_code": [
+																	2,
+																	3,
+																	4,
+																	5
+																]
+															},
+															"status_code": "{http.error.status_code}"
+														},
+														{
+															"match": {
+																"headers": {
+																	"X-Accel-Redirect": [
+																		"*"
+																	]
+																}
+															},
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Header X-Accel-Redirect!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														},
+														{
+															"match": {
+																"headers": {
+																	"X-Another": [
+																		"*"
+																	]
+																}
+															},
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Header X-Another!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														},
+														{
+															"match": {
+																"status_code": [
+																	401
+																]
+															},
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Status 401!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														},
+														{
+															"match": {
+																"status_code": [
+																	403
+																]
+															},
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Status 403!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														},
+														{
+															"match": {
+																"headers": {
+																	"Bar": [
+																		"*"
+																	],
+																	"Foo": [
+																		"*"
+																	]
+																},
+																"status_code": [
+																	401,
+																	403,
+																	404
+																]
+															},
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Headers Foo, Bar AND statuses 401, 403 and 404!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														},
+														{
+															"status_code": "{http.error.status_code}"
+														},
+														{
+															"routes": [
+																{
+																	"handle": [
+																		{
+																			"body": "Any! This should be last in the JSON!",
+																			"handler": "static_response"
+																		}
+																	]
+																}
+															]
+														}
+													],
+													"handler": "intercept"
+												},
+												{
+													"body": "To intercept",
+													"handler": "static_response"
+												}
+											]
+										}
+									]
+								}
+							],
+							"terminal": true
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/log_add.caddyfiletest

@@ -0,0 +1,71 @@
+:80 {
+	log
+
+	vars foo foo
+
+	log_append const bar
+	log_append vars foo
+	log_append placeholder {path}
+
+	log_append /only-for-this-path secret value
+}
+----------
+{
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"foo": "foo",
+									"handler": "vars"
+								}
+							]
+						},
+						{
+							"match": [
+								{
+									"path": [
+										"/only-for-this-path"
+									]
+								}
+							],
+							"handle": [
+								{
+									"handler": "log_append",
+									"key": "secret",
+									"value": "value"
+								}
+							]
+						},
+						{
+							"handle": [
+								{
+									"handler": "log_append",
+									"key": "const",
+									"value": "bar"
+								},
+								{
+									"handler": "log_append",
+									"key": "vars",
+									"value": "foo"
+								},
+								{
+									"handler": "log_append",
+									"key": "placeholder",
+									"value": "{http.request.uri.path}"
+								}
+							]
+						}
+					],
+					"logs": {}
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/log_append_encoder.caddyfiletest

@@ -0,0 +1,63 @@
+{
+	log {
+		format append {
+			wrap json
+			fields {
+				wrap "foo"
+			}
+			env {env.EXAMPLE}
+			int 1
+			float 1.1
+			bool true
+			string "string"
+		}
+	}
+}
+
+:80 {
+	respond "Hello, World!"
+}
+----------
+{
+	"logging": {
+		"logs": {
+			"default": {
+				"encoder": {
+					"fields": {
+						"bool": true,
+						"env": "{env.EXAMPLE}",
+						"float": 1.1,
+						"int": 1,
+						"string": "string",
+						"wrap": "foo"
+					},
+					"format": "append",
+					"wrap": {
+						"format": "json"
+					}
+				}
+			}
+		}
+	},
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"routes": [
+						{
+							"handle": [
+								{
+									"body": "Hello, World!",
+									"handler": "static_response"
+								}
+							]
+						}
+					]
+				}
+			}
+		}
+	}
+}

caddytest/integration/caddyfile_adapt/log_except_catchall_blocks.caddyfiletest

@@ -1,7 +1,7 @@
 http://localhost:2020 {
 	log
-	skip_log /first-hidden*
-	skip_log /second-hidden*
+	log_skip /first-hidden*
+	log_skip /second-hidden*
 	respond 200
 }
 
@@ -34,7 +34,7 @@ http://localhost:2020 {
 											"handle": [
 												{
 													"handler": "vars",
-													"skip_log": true
+													"log_skip": true
 												}
 											],
 											"match": [
@@ -49,7 +49,7 @@ http://localhost:2020 {
 											"handle": [
 												{
 													"handler": "vars",
-													"skip_log": true
+													"log_skip": true
 												}
 											],
 											"match": [
@@ -99,7 +99,9 @@ http://localhost:2020 {
 					},
 					"logs": {
 						"logger_names": {
-							"localhost": ""
+							"localhost": [
+								""
+							]
 						},
 						"skip_unmapped_hosts": true
 					}

caddytest/integration/caddyfile_adapt/log_filter_no_wrap.caddyfiletest

@@ -0,0 +1,52 @@
+:80
+
+log {
+	output stdout
+	format filter {
+		fields {
+			request>headers>Server delete
+		}
+	}
+}
+----------
+{
+	"logging": {
+		"logs": {
+			"default": {
+				"exclude": [
+					"http.log.access.log0"
+				]
+			},
+			"log0": {
+				"writer": {
+					"output": "stdout"
+				},
+				"encoder": {
+					"fields": {
+						"request\u003eheaders\u003eServer": {
+							"filter": "delete"
+						}
+					},
+					"format": "filter"
+				},
+				"include": [
+					"http.log.access.log0"
+				]
+			}
+		}
+	},
+	"apps": {
+		"http": {
+			"servers": {
+				"srv0": {
+					"listen": [
+						":80"
+					],
+					"logs": {
+						"default_logger_name": "log0"
+					}
+				}
+			}
+		}
+	}
+}