http: use sync.Map for request-scoped vars

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

.github/SECURITY.md

@@ -8,7 +8,7 @@ The Caddy project would like to make sure that it stays on top of all relevant a
 | Version     | Supported |
 | ----------- | ----------|
 | 2.latest    | ✔️        |
-| < 2.latest | :x:       |
+| <= 2.latest | :x:       |
 
 
 ## Acceptable Scope
@@ -25,8 +25,6 @@ Client-side exploits are out of scope. In other words, it is not a bug in Caddy
 
 Security bugs in code dependencies (including Go's standard library) are out of scope. Instead, if a dependency has patched a relevant security bug, please feel free to open a public issue or pull request to update that dependency in our code.
 
-Many reports are not security bugs and can be addressed by updating the documentation.
-
 We accept security reports and patches, but do not assign CVEs, for code that has not been released with a non-prerelease tag.
 
 

AGENTS.md

@@ -1,217 +0,0 @@
-# Caddy Project Guidelines
-
-## Mission
-
-**Every site on HTTPS.** Caddy is a security-first, modular, extensible server platform.
-
-## Code Style
-
-### Go Idioms
-
-Follow [Go Code Review Comments](https://go.dev/wiki/CodeReviewComments):
-
-- **Error flow**: Early return, indent error handling—not else blocks
-  ```go
-  if err != nil {
-      return err
-  }
-  // normal code
-  ```
-- **Naming**: initialisms (`URL`, `HTTP`, `ID`—not `Url`, `Http`, `Id`)
-- **Receiver names**: 1–2 letters reflecting type (`c` for `Client`, `h` for `Handler`)
-- **Error strings**: Lowercase, no trailing punctuation (`"something failed"` not `"Something failed."`)
-- **Doc comments**: Full sentences starting with the name being documented
-  ```go
-  // Handler serves HTTP requests for the file server.
-  type Handler struct { ... }
-  ```
-- **Empty slices**: `var t []string` (nil slice), not `t := []string{}` (non-nil zero-length)
-- **Don't panic**: Use error returns for normal error handling
-
-### Caddy Patterns
-
-**Module registration**:
-```go
-func init() {
-    caddy.RegisterModule(MyModule{})
-}
-
-func (MyModule) CaddyModule() caddy.ModuleInfo {
-    return caddy.ModuleInfo{
-        ID:  "namespace.category.name",
-        New: func() caddy.Module { return new(MyModule) },
-    }
-}
-```
-
-**Module lifecycle**: `New()` → JSON unmarshal → `Provision()` → `Validate()` → use → `Cleanup()`
-
-**Interface guards** — compile-time verification that modules implement required interfaces:
-```go
-var (
-    _ caddy.Provisioner     = (*MyModule)(nil)
-    _ caddy.Validator       = (*MyModule)(nil)
-    _ caddyfile.Unmarshaler = (*MyModule)(nil)
-)
-```
-
-**Structured logging** — use the module-scoped logger from context:
-```go
-func (m *MyModule) Provision(ctx caddy.Context) error {
-    m.logger = ctx.Logger()
-    m.logger.Debug("provisioning", zap.String("field", m.Field))
-    return nil
-}
-```
-
-**Caddyfile support** — implement `UnmarshalCaddyfile(*caddyfile.Dispenser)` using the `Dispenser` API:
-```go
-// UnmarshalCaddyfile sets up the module from Caddyfile tokens. Syntax:
-//
-//     directive [arg1] [arg2] {
-//         subdir value
-//     }
-func (m *MyModule) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
-    d.Next() // consume directive name
-    for d.NextArg() {
-        // handle inline arguments
-    }
-    for nesting := d.Nesting(); d.NextBlock(nesting); {
-        switch d.Val() {
-        case "subdir":
-            if !d.NextArg() {
-                return d.ArgErr()
-            }
-            m.Field = d.Val()
-        default:
-            return d.Errf("unrecognized subdirective: %s", d.Val())
-        }
-    }
-    return nil
-}
-```
-
-**Admin API**: Implement `caddy.AdminRouter` for custom endpoints.
-
-**Context**: Use `caddy.Context` for accessing other apps/modules and logging—don't store contexts in structs.
-
-## Architecture
-
-Caddy is built around a **module system** where everything is a module registered via `caddy.RegisterModule()`:
-
-- **Apps** (`caddy.App`): Top-level modules like `http`, `tls`, `pki` that Caddy loads and runs
-- **Modules** (`caddy.Module`): Extensible components with namespaced IDs (e.g., `http.handlers.file_server`)
-- **Configuration**: Native JSON with adapters (Caddyfile → JSON via `caddyconfig/httpcaddyfile`)
-
-| Directory | Purpose |
-|-----------|---------|
-| `modules/` | All standard modules (HTTP, TLS, PKI, etc.) |
-| `modules/standard/imports.go` | Standard module registry |
-| `caddyconfig/httpcaddyfile/` | Caddyfile → JSON adapter for HTTP |
-| `caddytest/` | Test utilities and integration tests |
-| `cmd/caddy/` | CLI entry point with module imports |
-
-### Critical Packages
-
-`caddyhttp` and `caddytls` require **extra scrutiny** in code review—these are security-critical.
-
-## Quality Gates
-
-
-**All required before PR is merge-ready:**
-
-| Gate | Command | Notes |
-|------|---------|-------|
-| Tests pass | `go test -race -short ./...` | Race detection enabled |
-| Lint clean | `golangci-lint run --timeout 10m` | No warnings in changed files |
-| Builds | `go build ./...` | Must compile |
-| Benchmarks | `go test -bench=. -benchmem` | Required for optimizations |
-
-CI runs tests on **Linux, macOS, and Windows**—ensure cross-platform compatibility.
-
-### Build & Test
-
-```bash
-# Build
-cd cmd/caddy && go build
-
-# Tests with race detection (matches CI)
-go test -race -short ./...
-
-# Integration tests
-go test ./caddytest/integration/...
-
-# Lint (matches CI)
-golangci-lint run --timeout 10m
-```
-
-## Testing Conventions
-
-**Table-driven tests** (preferred pattern):
-```go
-func TestFeature(t *testing.T) {
-    for i, tc := range []struct {
-        input    string
-        expected string
-        wantErr  bool
-    }{
-        {input: "valid", expected: "result", wantErr: false},
-        {input: "invalid", expected: "", wantErr: true},
-    } {
-        actual, err := Function(tc.input)
-        if tc.wantErr && err == nil {
-            t.Errorf("Test %d: expected error but got none", i)
-        }
-        if !tc.wantErr && err != nil {
-            t.Errorf("Test %d: unexpected error: %v", i, err)
-        }
-        if actual != tc.expected {
-            t.Errorf("Test %d: expected %q, got %q", i, tc.expected, actual)
-        }
-    }
-}
-```
-
-**Integration tests** use `caddytest.Tester`:
-```go
-func TestHTTPFeature(t *testing.T) {
-    tester := caddytest.NewTester(t)
-    tester.InitServer(`
-    {
-        admin localhost:2999
-        http_port 9080
-    }
-    localhost:9080 {
-        respond "hello"
-    }`, "caddyfile")
-    
-    tester.AssertGetResponse("http://localhost:9080/", 200, "hello")
-}
-```
-
-Use non-standard ports (9080, 9443, 2999) to avoid conflicts with running servers.
-
-## AI Contribution Policy
-
-Per [CONTRIBUTING.md](.github/CONTRIBUTING.md), AI-assisted code **MUST** be:
-
-1. **Disclosed** — Tell reviewers when code was AI-generated or AI-assisted, mentioning which agent/model is used
-2. **Fully comprehended** — You must be able to explain every line
-3. **Tested** — Automated tests when feasible, thorough manual tests otherwise
-4. **Licensed** — Verify AI output doesn't include plagiarized or incompatibly-licensed code
-5. **Contributor License Agreement (CLA)** — The CLA must be signed by the human user
-
-**Do NOT submit code you cannot fully explain.** Contributors are responsible for their submissions.
-
-## Dependencies
-
-- **Avoid new dependencies** — Justify any additions; tiny deps can be inlined
-- **No exported dependency types** — Caddy must not export types defined by external packages
-- Use Go modules; check with `go mod tidy`
-
-## Further Reading
-
-- [CONTRIBUTING.md](.github/CONTRIBUTING.md) — Full PR process and expectations
-- [Extending Caddy](https://caddyserver.com/docs/extending-caddy) — Module development guide
-- [JSON Config](https://caddyserver.com/docs/json/) — Native configuration reference
-- [Caddyfile](https://caddyserver.com/docs/caddyfile/concepts) — Caddyfile syntax guide

admin.go

@@ -45,8 +45,6 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
-
-	"github.com/caddyserver/caddy/v2/internal"
 )
 
 // testCertMagicStorageOverride is a package-level test hook. Tests may set
@@ -120,6 +118,10 @@ type AdminConfig struct {
 	//
 	// EXPERIMENTAL: This feature is subject to change.
 	Remote *RemoteAdmin `json:"remote,omitempty"`
+
+	// Holds onto the routers so that we can later provision them
+	// if they require provisioning.
+	routers []AdminRouter
 }
 
 // ConfigSettings configures the management of configuration.
@@ -208,8 +210,8 @@ type AdminAccess struct {
 // AdminPermissions specifies what kinds of requests are allowed
 // to be made to the admin endpoint.
 type AdminPermissions struct {
-	// The API paths allowed. A request path must either equal an
-	// allowed path or be a subpath with a path-segment boundary.
+	// The API paths allowed. Paths are simple prefix matches.
+	// Any subpath of the specified paths will be allowed.
 	Paths []string `json:"paths,omitempty"`
 
 	// The HTTP methods allowed for the given paths.
@@ -218,7 +220,7 @@ type AdminPermissions struct {
 
 // newAdminHandler reads admin's config and returns an http.Handler suitable
 // for use in an admin endpoint server, which will be listening on listenAddr.
-func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool, ctx Context) (adminHandler, error) {
+func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool, _ Context) adminHandler {
 	muxWrap := adminHandler{mux: http.NewServeMux()}
 
 	// secure the local or remote endpoint respectively
@@ -275,21 +277,34 @@ func (admin *AdminConfig) newAdminHandler(addr NetworkAddress, remote bool, ctx
 	// register third-party module endpoints
 	for _, m := range GetModules("admin.api") {
 		router := m.New().(AdminRouter)
-
-		// provision the router before registering its routes, so
-		// handlers have access to all provisioned state
-		if provisioner, ok := router.(Provisioner); ok {
-			if err := provisioner.Provision(ctx); err != nil {
-				return adminHandler{}, fmt.Errorf("provisioning admin router module %s: %v", m.ID, err)
-			}
-		}
-
 		for _, route := range router.Routes() {
 			addRoute(route.Pattern, handlerLabel, route.Handler)
 		}
+		admin.routers = append(admin.routers, router)
 	}
 
-	return muxWrap, nil
+	return muxWrap
+}
+
+// provisionAdminRouters provisions all the router modules
+// in the admin.api namespace that need provisioning.
+func (admin *AdminConfig) provisionAdminRouters(ctx Context) error {
+	for _, router := range admin.routers {
+		provisioner, ok := router.(Provisioner)
+		if !ok {
+			continue
+		}
+
+		err := provisioner.Provision(ctx)
+		if err != nil {
+			return err
+		}
+	}
+
+	// We no longer need the routers once provisioned, allow for GC
+	admin.routers = nil
+
+	return nil
 }
 
 // allowedOrigins returns a list of origins that are allowed.
@@ -413,7 +428,11 @@ func replaceLocalAdminServer(cfg *Config, ctx Context) error {
 		return err
 	}
 
-	handler, err := cfg.Admin.newAdminHandler(addr, false, ctx)
+	handler := cfg.Admin.newAdminHandler(addr, false, ctx)
+
+	// run the provisioners for loaded modules to make sure local
+	// state is properly re-initialized in the new admin server
+	err = cfg.Admin.provisionAdminRouters(ctx)
 	if err != nil {
 		return err
 	}
@@ -537,7 +556,11 @@ func replaceRemoteAdminServer(ctx Context, cfg *Config) error {
 
 	// make the HTTP handler but disable Host/Origin enforcement
 	// because we are using TLS authentication instead
-	handler, err := cfg.Admin.newAdminHandler(addr, true, ctx)
+	handler := cfg.Admin.newAdminHandler(addr, true, ctx)
+
+	// run the provisioners for loaded modules to make sure local
+	// state is properly re-initialized in the new admin server
+	err = cfg.Admin.provisionAdminRouters(ctx)
 	if err != nil {
 		return err
 	}
@@ -693,7 +716,7 @@ func (remote RemoteAdmin) enforceAccessControls(r *http.Request) error {
 						// verify path
 						pathFound := accessPerm.Paths == nil
 						for _, allowedPath := range accessPerm.Paths {
-							if adminPathAllowed(r.URL.Path, allowedPath) {
+							if strings.HasPrefix(r.URL.Path, allowedPath) {
 								pathFound = true
 								break
 							}
@@ -722,19 +745,6 @@ func (remote RemoteAdmin) enforceAccessControls(r *http.Request) error {
 	}
 }
 
-func adminPathAllowed(reqPath, allowedPath string) bool {
-	if allowedPath == "" || allowedPath == "/" {
-		return strings.HasPrefix(reqPath, allowedPath)
-	}
-	if reqPath == allowedPath {
-		return true
-	}
-	if strings.HasSuffix(allowedPath, "/") {
-		return strings.HasPrefix(reqPath, allowedPath)
-	}
-	return strings.HasPrefix(reqPath, allowedPath+"/")
-}
-
 func stopAdminServer(srv *http.Server) error {
 	if srv == nil {
 		return fmt.Errorf("no admin server")
@@ -790,7 +800,7 @@ func (h adminHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		zap.String("uri", r.RequestURI),
 		zap.String("remote_ip", ip),
 		zap.String("remote_port", port),
-		zap.Object("headers", internal.LoggableHTTPHeader{Header: r.Header}),
+		zap.Reflect("headers", r.Header),
 	)
 	if r.TLS != nil {
 		log = log.With(
@@ -1051,9 +1061,6 @@ func handleConfig(w http.ResponseWriter, r *http.Request) error {
 			buf.Reset()
 			defer bufPool.Put(buf)
 
-			const maxConfigSize = 100 * 1024 * 1024 // 100 MB
-			r.Body = http.MaxBytesReader(w, r.Body, maxConfigSize)
-
 			_, err := io.Copy(buf, r.Body)
 			if err != nil {
 				return APIError{
@@ -1136,20 +1143,6 @@ func handleStop(w http.ResponseWriter, r *http.Request) error {
 	return nil
 }
 
-func parseCanonicalArrayIndex(idx string) (int, error) {
-	if idx == "" {
-		return 0, fmt.Errorf("empty index")
-	}
-	i, err := strconv.Atoi(idx)
-	if err != nil {
-		return 0, err
-	}
-	if strconv.Itoa(i) != idx {
-		return 0, fmt.Errorf("non-canonical array index")
-	}
-	return i, nil
-}
-
 // unsyncedConfigAccess traverses into the current config and performs
 // the operation at path according to method, using body and out as
 // needed. This is a low-level, unsynchronized function; most callers
@@ -1211,12 +1204,11 @@ traverseLoop:
 				var idx int
 				if method != http.MethodPost {
 					idxStr := parts[len(parts)-1]
-					idx, err = parseCanonicalArrayIndex(idxStr)
+					idx, err = strconv.Atoi(idxStr)
 					if err != nil {
 						return fmt.Errorf("[%s] invalid array index '%s': %v",
 							path, idxStr, err)
 					}
-
 					if idx < 0 || (method != http.MethodPut && idx >= len(arr)) || idx > len(arr) {
 						return fmt.Errorf("[%s] array index out of bounds: %s", path, idxStr)
 					}
@@ -1316,7 +1308,7 @@ traverseLoop:
 			}
 
 		case []any:
-			partInt, err := parseCanonicalArrayIndex(part)
+			partInt, err := strconv.Atoi(part)
 			if err != nil {
 				return fmt.Errorf("[/%s] invalid array index '%s': %v",
 					strings.Join(parts[:i+1], "/"), part, err)

admin_test.go

@@ -15,13 +15,9 @@
 package caddy
 
 import (
-	"bytes"
 	"context"
-	"crypto"
-	"crypto/tls"
 	"crypto/x509"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"maps"
 	"net/http"
@@ -35,8 +31,6 @@ import (
 	"github.com/caddyserver/certmagic"
 	"github.com/prometheus/client_golang/prometheus"
 	dto "github.com/prometheus/client_model/go"
-	"go.uber.org/zap"
-	"go.uber.org/zap/zaptest/observer"
 )
 
 var testCfg = []byte(`{
@@ -57,13 +51,6 @@ var testCfg = []byte(`{
 		}
 		`)
 
-type testAdminPublicKey string
-
-func (k testAdminPublicKey) Equal(x crypto.PublicKey) bool {
-	other, ok := x.(testAdminPublicKey)
-	return ok && k == other
-}
-
 func TestUnsyncedConfigAccess(t *testing.T) {
 	// each test is performed in sequence, so
 	// each change builds on the previous ones;
@@ -255,51 +242,6 @@ func TestAdminHandlerErrorHandling(t *testing.T) {
 	}
 }
 
-func TestAdminHandlerServeHTTPRedactsSensitiveHeadersInLogs(t *testing.T) {
-	core, logs := observer.New(zap.InfoLevel)
-
-	defaultLoggerMu.Lock()
-	origLogger := defaultLogger.logger
-	defaultLogger.logger = zap.New(core)
-	defaultLoggerMu.Unlock()
-	t.Cleanup(func() {
-		defaultLoggerMu.Lock()
-		defaultLogger.logger = origLogger
-		defaultLoggerMu.Unlock()
-	})
-
-	handler := adminHandler{
-		mux: http.NewServeMux(),
-	}
-	req := httptest.NewRequest(http.MethodGet, "/", nil)
-	req.Header.Set("Authorization", "Bearer secret")
-	req.Header.Set("Cookie", "session=secret")
-	req.Header.Set("X-Test", "ok")
-	rr := httptest.NewRecorder()
-
-	handler.ServeHTTP(rr, req)
-
-	if logs.Len() == 0 {
-		t.Fatal("expected request log entry")
-	}
-
-	ctx := logs.All()[0].ContextMap()
-	headers, ok := ctx["headers"].(map[string]any)
-	if !ok {
-		t.Fatalf("expected headers field in log context, got %T", ctx["headers"])
-	}
-
-	if got := headers["Authorization"]; !reflect.DeepEqual(got, []any{"REDACTED"}) {
-		t.Fatalf("expected redacted Authorization header, got %#v", got)
-	}
-	if got := headers["Cookie"]; !reflect.DeepEqual(got, []any{"REDACTED"}) {
-		t.Fatalf("expected redacted Cookie header, got %#v", got)
-	}
-	if got := headers["X-Test"]; !reflect.DeepEqual(got, []any{"ok"}) {
-		t.Fatalf("expected X-Test header to remain visible, got %#v", got)
-	}
-}
-
 func initAdminMetrics() {
 	if adminMetrics.requestErrors != nil {
 		prometheus.Unregister(adminMetrics.requestErrors)
@@ -340,10 +282,7 @@ func TestAdminHandlerBuiltinRouteErrors(t *testing.T) {
 	if err != nil {
 		t.Fatalf("Failed to parse address: %v", err)
 	}
-	handler, err := cfg.Admin.newAdminHandler(addr, false, Context{})
-	if err != nil {
-		t.Fatalf("Failed to create admin handler: %v", err)
-	}
+	handler := cfg.Admin.newAdminHandler(addr, false, Context{})
 
 	tests := []struct {
 		name           string
@@ -464,10 +403,7 @@ func TestNewAdminHandlerRouterRegistration(t *testing.T) {
 	admin := &AdminConfig{
 		EnforceOrigin: false,
 	}
-	handler, err := admin.newAdminHandler(addr, false, Context{})
-	if err != nil {
-		t.Fatalf("Failed to create admin handler: %v", err)
-	}
+	handler := admin.newAdminHandler(addr, false, Context{})
 
 	req := httptest.NewRequest("GET", "/mock", nil)
 	req.Host = "localhost:2019"
@@ -479,6 +415,10 @@ func TestNewAdminHandlerRouterRegistration(t *testing.T) {
 		t.Errorf("Expected status code %d but got %d", http.StatusOK, rr.Code)
 		t.Logf("Response body: %s", rr.Body.String())
 	}
+
+	if len(admin.routers) != 1 {
+		t.Errorf("Expected 1 router to be stored, got %d", len(admin.routers))
+	}
 }
 
 type mockProvisionableRouter struct {
@@ -516,16 +456,19 @@ func TestAdminRouterProvisioning(t *testing.T) {
 		name         string
 		provisionErr error
 		wantErr      bool
+		routersAfter int // expected number of routers after provisioning
 	}{
 		{
 			name:         "successful provisioning",
 			provisionErr: nil,
 			wantErr:      false,
+			routersAfter: 0,
 		},
 		{
 			name:         "provisioning error",
 			provisionErr: fmt.Errorf("provision failed"),
 			wantErr:      true,
+			routersAfter: 1,
 		},
 	}
 
@@ -561,7 +504,8 @@ func TestAdminRouterProvisioning(t *testing.T) {
 				t.Fatalf("Failed to parse address: %v", err)
 			}
 
-			_, err = admin.newAdminHandler(addr, false, Context{})
+			_ = admin.newAdminHandler(addr, false, Context{})
+			err = admin.provisionAdminRouters(Context{})
 
 			if test.wantErr {
 				if err == nil {
@@ -572,6 +516,10 @@ func TestAdminRouterProvisioning(t *testing.T) {
 					t.Errorf("Expected no error but got: %v", err)
 				}
 			}
+
+			if len(admin.routers) != test.routersAfter {
+				t.Errorf("Expected %d routers after provisioning, got %d", test.routersAfter, len(admin.routers))
+			}
 		})
 	}
 }
@@ -656,99 +604,6 @@ func TestAllowedOriginsUnixSocket(t *testing.T) {
 	}
 }
 
-func TestRemoteAdminAccessControlPathSegmentMatching(t *testing.T) {
-	const authorizedKey testAdminPublicKey = "authorized"
-	peerCert := &x509.Certificate{PublicKey: authorizedKey}
-
-	tests := []struct {
-		name        string
-		allowedPath string
-		requestPath string
-		wantErr     bool
-	}{
-		{
-			name:        "exact path",
-			allowedPath: "/pki/ca/prod",
-			requestPath: "/pki/ca/prod",
-			wantErr:     false,
-		},
-		{
-			name:        "subpath",
-			allowedPath: "/pki/ca/prod",
-			requestPath: "/pki/ca/prod/certificates",
-			wantErr:     false,
-		},
-		{
-			name:        "trailing slash subpath",
-			allowedPath: "/pki/ca/prod/",
-			requestPath: "/pki/ca/prod/certificates",
-			wantErr:     false,
-		},
-		{
-			name:        "sibling with shared prefix",
-			allowedPath: "/pki/ca/prod",
-			requestPath: "/pki/ca/prod-backup",
-			wantErr:     true,
-		},
-		{
-			name:        "same segment plus digit",
-			allowedPath: "/pki/ca/prod",
-			requestPath: "/pki/ca/prod1",
-			wantErr:     true,
-		},
-		{
-			name:        "root path",
-			allowedPath: "/",
-			requestPath: "/pki/ca/prod",
-			wantErr:     false,
-		},
-	}
-
-	for i, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			remote := RemoteAdmin{
-				AccessControl: []*AdminAccess{
-					{
-						Permissions: []AdminPermissions{
-							{
-								Methods: []string{http.MethodGet},
-								Paths:   []string{test.allowedPath},
-							},
-						},
-						publicKeys: []crypto.PublicKey{authorizedKey},
-					},
-				},
-			}
-
-			req := httptest.NewRequest(http.MethodGet, "https://localhost:2021"+test.requestPath, nil)
-			req.TLS = &tls.ConnectionState{
-				VerifiedChains: [][]*x509.Certificate{{peerCert}},
-			}
-
-			err := remote.enforceAccessControls(req)
-			if test.wantErr {
-				if err == nil {
-					t.Errorf("test %d (%s): allowed path %q, request path %q: expected forbidden error, got nil", i, test.name, test.allowedPath, test.requestPath)
-					return
-				}
-				var apiErr APIError
-				if !errors.As(err, &apiErr) {
-					t.Errorf("test %d (%s): allowed path %q, request path %q: expected APIError with HTTP status %d, got %T: %v", i, test.name, test.allowedPath, test.requestPath, http.StatusForbidden, err, err)
-					return
-				}
-				if apiErr.HTTPStatus != http.StatusForbidden {
-					t.Errorf("test %d (%s): allowed path %q, request path %q: expected HTTP status %d, got %d", i, test.name, test.allowedPath, test.requestPath, http.StatusForbidden, apiErr.HTTPStatus)
-				}
-				return
-			}
-
-			if err != nil {
-				t.Errorf("test %d (%s): allowed path %q, request path %q: expected no error, got %v", i, test.name, test.allowedPath, test.requestPath, err)
-			}
-		})
-	}
-}
-
 func TestReplaceRemoteAdminServer(t *testing.T) {
 	const testCert = `MIIDCTCCAfGgAwIBAgIUXsqJ1mY8pKlHQtI3HJ23x2eZPqwwDQYJKoZIhvcNAQEL
 BQAwFDESMBAGA1UEAwwJbG9jYWxob3N0MB4XDTIzMDEwMTAwMDAwMFoXDTI0MDEw
@@ -1101,47 +956,3 @@ MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDRS0LmTwUT0iwP
 		})
 	}
 }
-
-func TestUnsyncedConfigAccessCanonicalArrayIndices(t *testing.T) {
-	rawCfg = map[string]any{
-		rawConfigKey: map[string]any{
-			"list": []any{"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"},
-		},
-	}
-
-	tests := []struct {
-		name       string
-		path       string
-		wantOutput string
-		wantErr    bool
-	}{
-		{name: "allow zero", path: "/" + rawConfigKey + "/list/0", wantOutput: "\"zero\"\n"},
-		{name: "allow one", path: "/" + rawConfigKey + "/list/1", wantOutput: "\"one\"\n"},
-		{name: "allow ten", path: "/" + rawConfigKey + "/list/10", wantOutput: "\"ten\"\n"},
-		{name: "reject leading zero", path: "/" + rawConfigKey + "/list/01", wantErr: true},
-		{name: "reject multiple leading zeros", path: "/" + rawConfigKey + "/list/002", wantErr: true},
-		{name: "reject plus sign", path: "/" + rawConfigKey + "/list/+1", wantErr: true},
-		{name: "reject negative zero", path: "/" + rawConfigKey + "/list/-0", wantErr: true},
-	}
-
-	for i, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			var gotOutput bytes.Buffer
-			err := unsyncedConfigAccess(http.MethodGet, tc.path, nil, &gotOutput)
-
-			if tc.wantErr {
-				if err == nil {
-					t.Errorf("test %d (%s): input path %q: expected error, got nil with output %q", i, tc.name, tc.path, gotOutput.String())
-				}
-				return
-			}
-
-			if err != nil {
-				t.Errorf("test %d (%s): input path %q: expected no error with output %q, got error %v with output %q", i, tc.name, tc.path, tc.wantOutput, err, gotOutput.String())
-			}
-			if gotOutput.String() != tc.wantOutput {
-				t.Errorf("test %d (%s): input path %q: expected output %q, got %q", i, tc.name, tc.path, tc.wantOutput, gotOutput.String())
-			}
-		})
-	}
-}

caddy.go

@@ -127,9 +127,10 @@ func Load(cfgJSON []byte, forceReload bool) error {
 					zap.Error(notifyErr),
 					zap.String("reload_err", err.Error()))
 			}
+			return
 		}
-		if notifyErr := notify.Ready(); notifyErr != nil {
-			Log().Error("unable to notify to service manager of ready state", zap.Error(notifyErr))
+		if err := notify.Ready(); err != nil {
+			Log().Error("unable to notify to service manager of ready state", zap.Error(err))
 		}
 	}()
 
@@ -440,6 +441,13 @@ func run(newCfg *Config, start bool) (Context, error) {
 		}
 	}()
 
+	// Provision any admin routers which may need to access
+	// some of the other apps at runtime
+	err = ctx.cfg.Admin.provisionAdminRouters(ctx)
+	if err != nil {
+		return ctx, err
+	}
+
 	// Start
 	err = func() error {
 		started := make([]string, 0, len(ctx.cfg.apps))
@@ -759,7 +767,7 @@ func Validate(cfg *Config) error {
 // code is emitted.
 func exitProcess(ctx context.Context, logger *zap.Logger) {
 	// let the rest of the program know we're quitting; only do it once
-	if !exiting.CompareAndSwap(false, true) {
+	if !atomic.CompareAndSwapInt32(exiting, 0, 1) {
 		return
 	}
 
@@ -838,11 +846,11 @@ func exitProcess(ctx context.Context, logger *zap.Logger) {
 	}()
 }
 
-var exiting atomic.Bool
+var exiting = new(int32) // accessed atomically
 
 // Exiting returns true if the process is exiting.
 // EXPERIMENTAL API: subject to change or removal.
-func Exiting() bool { return exiting.Load() }
+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

caddyconfig/caddyfile/formatter.go

@@ -63,33 +63,8 @@ func Format(input []byte) []byte {
 		heredocClosingMarker []rune
 
 		nesting int // indentation level
-
-		currentToken                  strings.Builder
-		currentLineFirstToken         string
-		previousLineWasTopLevelImport bool
-		openBraceOwnLine              bool
 	)
 
-	finishToken := func() {
-		if currentToken.Len() == 0 {
-			return
-		}
-		if currentLineFirstToken == "" {
-			currentLineFirstToken = currentToken.String()
-		}
-		currentToken.Reset()
-	}
-
-	finishLine := func() {
-		finishToken()
-		if currentLineFirstToken != "" {
-			previousLineWasTopLevelImport = nesting == 0 && currentLineFirstToken == "import"
-		} else if !openBrace || !openBraceOwnLine || openBraceWritten {
-			previousLineWasTopLevelImport = false
-		}
-		currentLineFirstToken = ""
-	}
-
 	write := func(ch rune) {
 		out.WriteRune(ch)
 		last = ch
@@ -245,11 +220,9 @@ func Format(input []byte) []byte {
 		}
 
 		if unicode.IsSpace(ch) {
-			finishToken()
 			space = true
 			heredocEscaped = false
 			if ch == '\n' {
-				finishLine()
 				newLines++
 			}
 			continue
@@ -276,19 +249,13 @@ func Format(input []byte) []byte {
 			}
 
 			openBrace = false
-			if openBraceOwnLine && previousLineWasTopLevelImport {
-				if last != '\n' {
-					nextLine()
-				}
-				indent()
-			} else if beginningOfLine {
+			if beginningOfLine {
 				indent()
 			} else if !openBraceSpace || !unicode.IsSpace(last) {
 				write(' ')
 			}
 			write('{')
 			openBraceWritten = true
-			openBraceOwnLine = false
 			nextLine()
 			newLines = 0
 			// prevent infinite nesting from ridiculous inputs (issue #4169)
@@ -299,10 +266,8 @@ func Format(input []byte) []byte {
 
 		switch {
 		case ch == '{':
-			finishToken()
 			openBrace = true
 			openBraceSpace = spacePrior && !beginningOfLine
-			openBraceOwnLine = newLines > 0
 			if openBraceSpace && newLines == 0 {
 				write(' ')
 			}
@@ -310,13 +275,11 @@ func Format(input []byte) []byte {
 			if quotes == "`" {
 				write('{')
 				openBraceWritten = true
-				openBraceOwnLine = false
 				continue
 			}
 			continue
 
 		case ch == '}' && (spacePrior || !openBrace):
-			finishToken()
 			if quotes == "`" {
 				write('}')
 				continue
@@ -361,7 +324,6 @@ func Format(input []byte) []byte {
 			space = true
 		}
 
-		currentToken.WriteRune(ch)
 		write(ch)
 
 		beginningOfLine = false

caddyconfig/caddyfile/formatter_test.go

@@ -475,21 +475,6 @@ Hope this helps.` + "`" + `
 }`,
 			expect: "https://localhost:8953 {\n\trespond `Here are some random numbers:\n\n{{randNumeric 16}}\n\nHope this helps.`\n}",
 		},
-		{
-			description: "imports before global options block keep standalone brace",
-			input: `import ./conf.d/matcher_my_subnet.caddy
-import ./conf.d/matcher_not_my_subnet.caddy
-{
-	order crowdsec first
-	order appsec after crowdsec
-}`,
-			expect: `import ./conf.d/matcher_my_subnet.caddy
-import ./conf.d/matcher_not_my_subnet.caddy
-{
-	order crowdsec first
-	order appsec after crowdsec
-}`,
-		},
 	} {
 		// the formatter should output a trailing newline,
 		// even if the tests aren't written to expect that

caddyconfig/caddyfile/lexer.go

@@ -155,7 +155,7 @@ func (l *lexer) next() (bool, error) {
 			// want to keep.
 			if ch == '\n' {
 				if len(val) == 2 {
-					return false, fmt.Errorf("missing opening heredoc marker on line #%d; must contain only alphanumeric characters, dashes and underscores; got empty string", l.line)
+					return false, fmt.Errorf("missing opening heredoc marker on line #%d; must contain only alpha-numeric characters, dashes and underscores; got empty string", l.line)
 				}
 
 				// check if there's too many <
@@ -165,7 +165,7 @@ func (l *lexer) next() (bool, error) {
 
 				heredocMarker = string(val[2:])
 				if !heredocMarkerRegexp.Match([]byte(heredocMarker)) {
-					return false, fmt.Errorf("heredoc marker on line #%d must contain only alphanumeric characters, dashes and underscores; got '%s'", l.line, heredocMarker)
+					return false, fmt.Errorf("heredoc marker on line #%d must contain only alpha-numeric characters, dashes and underscores; got '%s'", l.line, heredocMarker)
 				}
 
 				inHeredoc = true

caddyconfig/caddyfile/lexer_test.go

@@ -424,7 +424,7 @@ EOF
 		{
 			input:        []byte("not-a-heredoc <<\n"),
 			expectErr:    true,
-			errorMessage: "missing opening heredoc marker on line #1; must contain only alphanumeric characters, dashes and underscores; got empty string",
+			errorMessage: "missing opening heredoc marker on line #1; must contain only alpha-numeric characters, dashes and underscores; got empty string",
 		},
 		{
 			input: []byte(`heredoc <<<EOF

caddyconfig/caddyfile/parse.go

@@ -550,11 +550,7 @@ func (p *parser) doImport(nesting int) error {
 		}
 
 		if foundBlockDirective {
-			if maybeSnippet {
-				tokensCopy = append(tokensCopy, token)
-			} else {
-				tokensCopy = append(tokensCopy, tokensToAdd...)
-			}
+			tokensCopy = append(tokensCopy, tokensToAdd...)
 			continue
 		}
 
@@ -683,31 +679,14 @@ func (p *parser) directive() error {
 // openCurlyBrace expects the current token to be an
 // opening curly brace. This acts like an assertion
 // because it returns an error if the token is not
-// an opening curly brace. It does NOT advance the token.
+// a opening curly brace. It does NOT advance the token.
 func (p *parser) openCurlyBrace() error {
 	if p.Val() != "{" {
-		if p.valLooksLikeGlobalOptionsAfterImportedSnippets() {
-			return p.Err("global options block must appear before import directives; move the global options block to the top of the Caddyfile")
-		}
 		return p.SyntaxErr("{")
 	}
 	return nil
 }
 
-func (p *parser) valLooksLikeGlobalOptionsAfterImportedSnippets() bool {
-	if p.Val() != "import" || len(p.block.Keys) == 0 {
-		return false
-	}
-
-	for _, key := range p.block.Keys {
-		if !strings.HasPrefix(key.Text, "(") || !strings.HasSuffix(key.Text, ")") {
-			return false
-		}
-	}
-
-	return true
-}
-
 // closeCurlyBrace expects the current token to be
 // a closing curly brace. This acts like an assertion
 // because it returns an error if the token is not

caddyconfig/caddyfile/parse_test.go

@@ -930,107 +930,6 @@ func TestAcceptSiteImportWithBraces(t *testing.T) {
 	}
 }
 
-func TestGlobalOptionsAfterImportedSnippetsGivesHelpfulError(t *testing.T) {
-	tempDir := t.TempDir()
-	importFile1 := filepath.Join(tempDir, "matcher_snippet_1.caddy")
-	importFile2 := filepath.Join(tempDir, "matcher_snippet_2.caddy")
-
-	err := os.WriteFile(importFile1, []byte(`(matcher1)`), 0o644)
-	if err != nil {
-		t.Fatalf("writing first import file: %v", err)
-	}
-
-	err = os.WriteFile(importFile2, []byte(`(matcher2)`), 0o644)
-	if err != nil {
-		t.Fatalf("writing second import file: %v", err)
-	}
-
-	_, err = Parse("Testfile", []byte(`import `+importFile1+`
-import `+importFile2+`
-{
-	debug
-}`))
-	if err == nil {
-		t.Fatal("Expected an error, but got nil")
-	}
-
-	expected := "global options block must appear before import directives; move the global options block to the top of the Caddyfile"
-	if !strings.HasPrefix(err.Error(), expected) {
-		t.Errorf("Expected error to start with '%s' but got '%v'", expected, err)
-	}
-}
-
-func TestImportedSnippetDefinitionRetainsBlockPlaceholder(t *testing.T) {
-	tempDir := t.TempDir()
-	importFile := filepath.Join(tempDir, "snippets.caddy")
-
-	err := os.WriteFile(importFile, []byte(`
-		(site) {
-			http://{args[0]} {
-				respond "before"
-				{block}
-				respond "after"
-			}
-		}
-	`), 0o644)
-	if err != nil {
-		t.Fatalf("writing imported snippet file: %v", err)
-	}
-
-	for _, tc := range []struct {
-		name               string
-		input              string
-		expectedDirectives []string
-	}{
-		{
-			name: "with nested block",
-			input: `
-				import ` + importFile + `
-
-				import site example.com {
-					redir https://example.net
-				}
-			`,
-			expectedDirectives: []string{"respond", "redir", "respond"},
-		},
-		{
-			name: "without nested block",
-			input: `
-				import ` + importFile + `
-
-				import site example.com
-			`,
-			expectedDirectives: []string{"respond", "respond"},
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			p := testParser(tc.input)
-			blocks, err := p.parseAll()
-			if err != nil {
-				t.Fatalf("parseAll: %v", err)
-			}
-
-			if len(blocks) != 1 {
-				t.Fatalf("expected exactly one server block, got %d", len(blocks))
-			}
-
-			if actual := blocks[0].GetKeysText(); len(actual) != 1 || actual[0] != "http://example.com" {
-				t.Fatalf("expected server block key http://example.com, got %v", actual)
-			}
-
-			if len(blocks[0].Segments) != len(tc.expectedDirectives) {
-				t.Fatalf("expected %d segments, got %d", len(tc.expectedDirectives), len(blocks[0].Segments))
-			}
-
-			for i, directive := range tc.expectedDirectives {
-				if actual := blocks[0].Segments[i].Directive(); actual != directive {
-					t.Fatalf("segment %d: expected directive %q, got %q", i, directive, actual)
-				}
-			}
-		})
-	}
-}
-
 func testParser(input string) parser {
 	return parser{Dispenser: NewTestDispenser(input)}
 }

caddyconfig/httpcaddyfile/builtins.go

@@ -550,11 +550,26 @@ func parseTLS(h Helper) ([]ConfigValue, error) {
 		}
 
 	case acmeIssuer != nil:
-		// implicit ACME issuers (from various subdirectives) should inherit from
-		// any globally-configured ACME issuer templates, then apply the local
-		// shortcut settings as overrides.
-		defaultIssuers := implicitACMEIssuers(h, acmeIssuer)
+		// implicit ACME issuers (from various subdirectives) - use defaults; there might be more than one
+		defaultIssuers := caddytls.DefaultIssuers(acmeIssuer.Email)
+
+		// if an ACME CA endpoint was set, the user expects to use that specific one,
+		// not any others that may be defaults, so replace all defaults with that ACME CA
+		if acmeIssuer.CA != "" {
+			defaultIssuers = []certmagic.Issuer{acmeIssuer}
+		}
+
 		for _, issuer := range defaultIssuers {
+			// apply settings from the implicitly-configured ACMEIssuer to any
+			// default ACMEIssuers, but preserve each default issuer's CA endpoint,
+			// because, for example, if you configure the DNS challenge, it should
+			// apply to any of the default ACMEIssuers, but you don't want to trample
+			// out their unique CA endpoints
+			if iss, ok := issuer.(*caddytls.ACMEIssuer); ok && iss != nil {
+				acmeCopy := *acmeIssuer
+				acmeCopy.CA = iss.CA
+				issuer = &acmeCopy
+			}
 			configVals = append(configVals, ConfigValue{
 				Class: "tls.cert_issuer",
 				Value: issuer,
@@ -653,8 +668,6 @@ func parseRoot(h Helper) ([]ConfigValue, error) {
 		if !h.NextArg() {
 			return nil, h.ArgErr()
 		}
-		// store the unmatched root in block state so sibling directives can access it
-		h.BlockState["root"] = h.Val()
 		return h.NewRoute(nil, caddyhttp.VarsMiddleware{"root": h.Val()}), nil
 	}
 
@@ -669,10 +682,6 @@ func parseRoot(h Helper) ([]ConfigValue, error) {
 	if !h.NextArg() {
 		return nil, h.ArgErr()
 	}
-	// store the unmatched root in state so sibling/child directives can access it
-	if userMatcherSet == nil {
-		h.BlockState["root"] = h.Val()
-	}
 	// make the route with the matcher
 	return h.NewRoute(userMatcherSet, caddyhttp.VarsMiddleware{"root": h.Val()}), nil
 }
@@ -1053,7 +1062,7 @@ func parseLogHelper(h Helper, globalLogNames map[string]struct{}) ([]ConfigValue
 					if !d.NextArg() {
 						return nil, d.ArgErr()
 					}
-					interval, err := caddy.ParseDuration(d.Val())
+					interval, err := time.ParseDuration(d.Val() + "ns")
 					if err != nil {
 						return nil, d.Errf("failed to parse interval: %v", err)
 					}

caddyconfig/httpcaddyfile/builtins_test.go

@@ -66,14 +66,14 @@ func TestLogDirectiveSyntax(t *testing.T) {
 			input: `:8080 {
 				log {
 					sampling {
-						interval 2s
+						interval 2
 						first 3
 						thereafter 4
 					}
 				}
 			}
 			`,
-			output:      `{"logging":{"logs":{"default":{"exclude":["http.log.access.log0"]},"log0":{"sampling":{"interval":2000000000,"first":3,"thereafter":4},"include":["http.log.access.log0"]}}},"apps":{"http":{"servers":{"srv0":{"listen":[":8080"],"logs":{"default_logger_name":"log0"}}}}}}`,
+			output:      `{"logging":{"logs":{"default":{"exclude":["http.log.access.log0"]},"log0":{"sampling":{"interval":2,"first":3,"thereafter":4},"include":["http.log.access.log0"]}}},"apps":{"http":{"servers":{"srv0":{"listen":[":8080"],"logs":{"default_logger_name":"log0"}}}}}}`,
 			expectError: false,
 		},
 	} {

caddyconfig/httpcaddyfile/directives.go

@@ -202,10 +202,7 @@ func RegisterGlobalOption(opt string, setupFunc UnmarshalGlobalFunc) {
 type Helper struct {
 	*caddyfile.Dispenser
 	// State stores intermediate variables during caddyfile adaptation.
-	State map[string]any
-	// BlockState stores intermediate variables scoped to the current block.
-	// It propagates down, but unlike state not back up from child to parent.
-	BlockState   map[string]any
+	State        map[string]any
 	options      map[string]any
 	warnings     *[]caddyconfig.Warning
 	matcherDefs  map[string]caddy.ModuleMap
@@ -388,11 +385,6 @@ func parseSegmentAsConfig(h Helper) ([]ConfigValue, error) {
 			}
 		}
 
-		// clone BlockState once for the entire block so sibling directives
-		// can share state, but changes don't leak to the parent scope
-		subBlockState := make(map[string]any, len(h.BlockState))
-		maps.Copy(subBlockState, h.BlockState)
-
 		// with matchers ready to go, evaluate each directive's segment
 		for _, seg := range segments {
 			dir := seg.Directive()
@@ -404,7 +396,6 @@ func parseSegmentAsConfig(h Helper) ([]ConfigValue, error) {
 			subHelper := h
 			subHelper.Dispenser = caddyfile.NewDispenser(seg)
 			subHelper.matcherDefs = matcherDefs
-			subHelper.BlockState = subBlockState
 
 			results, err := dirFunc(subHelper)
 			if err != nil {

caddyconfig/httpcaddyfile/httptype.go

@@ -143,7 +143,6 @@ func (st ServerType) Setup(
 				parentBlock:  sb.block,
 				groupCounter: gc,
 				State:        state,
-				BlockState:   state,
 			}
 
 			results, err := dirFunc(h)
@@ -505,7 +504,6 @@ func (ServerType) extractNamedRoutes(
 			parentBlock:  sb.block,
 			groupCounter: gc,
 			State:        state,
-			BlockState:   state,
 		}
 
 		handler, err := ParseSegmentAsSubroute(h)

caddyconfig/httpcaddyfile/options.go

@@ -484,8 +484,6 @@ func unmarshalCaddyfileMetricsOptions(d *caddyfile.Dispenser) (any, error) {
 			metrics.PerHost = true
 		case "observe_catchall_hosts":
 			metrics.ObserveCatchallHosts = true
-		case "otlp":
-			metrics.OTLP = true
 		default:
 			return nil, d.Errf("unrecognized servers option '%s'", d.Val())
 		}

caddyconfig/httpcaddyfile/options_test.go

@@ -3,9 +3,7 @@ package httpcaddyfile
 import (
 	"encoding/json"
 	"testing"
-	"time"
 
-	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"github.com/caddyserver/caddy/v2/modules/caddytls"
 	_ "github.com/caddyserver/caddy/v2/modules/logging"
@@ -168,126 +166,3 @@ func TestGlobalResolversOption(t *testing.T) {
 		})
 	}
 }
-
-func TestGlobalCertIssuerAppliesToImplicitACMEIssuer(t *testing.T) {
-	adapter := caddyfile.Adapter{
-		ServerType: ServerType{},
-	}
-
-	input := `{
-		cert_issuer acme {
-			disable_tlsalpn_challenge
-		}
-	}
-	report.company.intern {
-		tls {
-			ca https://deglacme01.company.intern/acme/acme/directory
-			ca_root /etc/certs/company_root2.crt
-		}
-		respond "ok"
-	}`
-
-	out, _, err := adapter.Adapt([]byte(input), nil)
-	if err != nil {
-		t.Fatalf("adapting caddyfile: %v", err)
-	}
-
-	var config struct {
-		Apps struct {
-			TLS *caddytls.TLS `json:"tls"`
-		} `json:"apps"`
-	}
-	if err := json.Unmarshal(out, &config); err != nil {
-		t.Fatalf("unmarshaling adapted config: %v", err)
-	}
-	if config.Apps.TLS == nil || config.Apps.TLS.Automation == nil {
-		t.Fatal("expected tls automation config")
-	}
-
-	var subjectPolicy *caddytls.AutomationPolicy
-	for _, ap := range config.Apps.TLS.Automation.Policies {
-		if len(ap.SubjectsRaw) == 1 && ap.SubjectsRaw[0] == "report.company.intern" {
-			subjectPolicy = ap
-			break
-		}
-	}
-	if subjectPolicy == nil {
-		t.Fatal("expected subject-specific automation policy")
-	}
-	if len(subjectPolicy.IssuersRaw) != 1 {
-		t.Fatalf("expected one issuer for subject-specific policy, got %d", len(subjectPolicy.IssuersRaw))
-	}
-
-	var issuer caddytls.ACMEIssuer
-	if err := json.Unmarshal(subjectPolicy.IssuersRaw[0], &issuer); err != nil {
-		t.Fatalf("unmarshaling issuer: %v", err)
-	}
-	if issuer.CA != "https://deglacme01.company.intern/acme/acme/directory" {
-		t.Fatalf("expected custom ACME CA, got %q", issuer.CA)
-	}
-	if len(issuer.TrustedRootsPEMFiles) != 1 || issuer.TrustedRootsPEMFiles[0] != "/etc/certs/company_root2.crt" {
-		t.Fatalf("expected trusted roots to include site CA root, got %v", issuer.TrustedRootsPEMFiles)
-	}
-	if issuer.Challenges == nil || issuer.Challenges.TLSALPN == nil || !issuer.Challenges.TLSALPN.Disabled {
-		t.Fatalf("expected tls-alpn challenge to be disabled, got %#v", issuer.Challenges)
-	}
-}
-
-func TestMergeACMEIssuers(t *testing.T) {
-	base := &caddytls.ACMEIssuer{
-		Email: "ops@example.com",
-		Challenges: &caddytls.ChallengesConfig{
-			HTTP: &caddytls.HTTPChallengeConfig{
-				AlternatePort: 8080,
-			},
-			TLSALPN: &caddytls.TLSALPNChallengeConfig{
-				Disabled:      true,
-				AlternatePort: 8443,
-			},
-			DNS: &caddytls.DNSChallengeConfig{
-				Resolvers:      []string{"1.1.1.1"},
-				OverrideDomain: "_acme-challenge.example.net",
-			},
-		},
-		TrustedRootsPEMFiles: []string{"global.pem"},
-	}
-	overrides := &caddytls.ACMEIssuer{
-		CA: "https://deglacme01.company.intern/acme/acme/directory",
-		Challenges: &caddytls.ChallengesConfig{
-			HTTP: &caddytls.HTTPChallengeConfig{
-				Disabled: true,
-			},
-			DNS: &caddytls.DNSChallengeConfig{
-				PropagationTimeout: caddy.Duration(time.Minute),
-			},
-		},
-		TrustedRootsPEMFiles: []string{"site.pem"},
-	}
-
-	merged := mergeACMEIssuers(base, overrides)
-	if merged.CA != overrides.CA {
-		t.Fatalf("expected merged CA %q, got %q", overrides.CA, merged.CA)
-	}
-	if merged.Email != base.Email {
-		t.Fatalf("expected merged email %q, got %q", base.Email, merged.Email)
-	}
-	if len(merged.TrustedRootsPEMFiles) != 2 || merged.TrustedRootsPEMFiles[0] != "global.pem" || merged.TrustedRootsPEMFiles[1] != "site.pem" {
-		t.Fatalf("expected merged roots [global.pem site.pem], got %v", merged.TrustedRootsPEMFiles)
-	}
-	if merged.Challenges == nil || merged.Challenges.HTTP == nil || !merged.Challenges.HTTP.Disabled || merged.Challenges.HTTP.AlternatePort != 8080 {
-		t.Fatalf("expected merged HTTP challenge config to preserve alternate port and apply disable flag, got %#v", merged.Challenges)
-	}
-	if merged.Challenges.TLSALPN == nil || !merged.Challenges.TLSALPN.Disabled || merged.Challenges.TLSALPN.AlternatePort != 8443 {
-		t.Fatalf("expected merged TLS-ALPN challenge config to preserve global settings, got %#v", merged.Challenges)
-	}
-	if merged.Challenges.DNS == nil || merged.Challenges.DNS.PropagationTimeout != caddy.Duration(time.Minute) || len(merged.Challenges.DNS.Resolvers) != 1 || merged.Challenges.DNS.Resolvers[0] != "1.1.1.1" || merged.Challenges.DNS.OverrideDomain != "_acme-challenge.example.net" {
-		t.Fatalf("expected merged DNS challenge config to preserve global values and apply overrides, got %#v", merged.Challenges)
-	}
-
-	if base.CA != "" {
-		t.Fatalf("expected base issuer to remain unchanged, got CA %q", base.CA)
-	}
-	if len(base.TrustedRootsPEMFiles) != 1 || base.TrustedRootsPEMFiles[0] != "global.pem" {
-		t.Fatalf("expected base roots to remain unchanged, got %v", base.TrustedRootsPEMFiles)
-	}
-}

caddyconfig/httpcaddyfile/tlsapp.go

@@ -612,289 +612,6 @@ func fillInGlobalACMEDefaults(issuer certmagic.Issuer, options map[string]any) e
 	return nil
 }
 
-// implicitACMEIssuers returns the issuers to use for ACME-related tls
-// shortcuts such as ca, ca_root, and dns. If any global cert_issuer options
-// configure ACME issuers, those become the templates for the local shortcut
-// configuration; otherwise, default ACME issuers are used.
-func implicitACMEIssuers(h Helper, acmeIssuer *caddytls.ACMEIssuer) []certmagic.Issuer {
-	globalIssuers, _ := h.Option("cert_issuer").([]certmagic.Issuer)
-
-	var implicitIssuers []certmagic.Issuer
-	for _, issuer := range globalIssuers {
-		acmeWrapper, ok := issuer.(acmeCapable)
-		if !ok {
-			continue
-		}
-		baseIssuer := acmeWrapper.GetACMEIssuer()
-		if baseIssuer == nil {
-			continue
-		}
-		implicitIssuers = append(implicitIssuers, mergeACMEIssuers(baseIssuer, acmeIssuer))
-	}
-	if len(implicitIssuers) > 0 {
-		return implicitIssuers
-	}
-
-	// If an ACME CA endpoint was set locally, the user expects to use only that
-	// CA rather than the usual default fallback issuers.
-	defaultIssuers := caddytls.DefaultIssuers(acmeIssuer.Email)
-	if acmeIssuer.CA != "" {
-		defaultIssuers = []certmagic.Issuer{new(caddytls.ACMEIssuer)}
-	}
-
-	implicitIssuers = make([]certmagic.Issuer, 0, len(defaultIssuers))
-	for _, issuer := range defaultIssuers {
-		acmeWrapper, ok := issuer.(acmeCapable)
-		if !ok {
-			implicitIssuers = append(implicitIssuers, issuer)
-			continue
-		}
-		baseIssuer := acmeWrapper.GetACMEIssuer()
-		if baseIssuer == nil {
-			implicitIssuers = append(implicitIssuers, issuer)
-			continue
-		}
-		implicitIssuers = append(implicitIssuers, mergeACMEIssuers(baseIssuer, acmeIssuer))
-	}
-	return implicitIssuers
-}
-
-func mergeACMEIssuers(base, overrides *caddytls.ACMEIssuer) *caddytls.ACMEIssuer {
-	if base == nil {
-		return cloneACMEIssuer(overrides)
-	}
-
-	merged := cloneACMEIssuer(base)
-	if overrides == nil {
-		return merged
-	}
-
-	if overrides.CA != "" {
-		merged.CA = overrides.CA
-	}
-	if overrides.TestCA != "" {
-		merged.TestCA = overrides.TestCA
-	}
-	if overrides.Email != "" {
-		merged.Email = overrides.Email
-	}
-	if overrides.Profile != "" {
-		merged.Profile = overrides.Profile
-	}
-	if overrides.AccountKey != "" {
-		merged.AccountKey = overrides.AccountKey
-	}
-	if overrides.ExternalAccount != nil {
-		merged.ExternalAccount = cloneACMEEAB(overrides.ExternalAccount)
-	}
-	if overrides.ACMETimeout != 0 {
-		merged.ACMETimeout = overrides.ACMETimeout
-	}
-	if len(overrides.TrustedRootsPEMFiles) > 0 {
-		merged.TrustedRootsPEMFiles = appendUniqueStrings(merged.TrustedRootsPEMFiles, overrides.TrustedRootsPEMFiles...)
-	}
-	if overrides.PreferredChains != nil {
-		merged.PreferredChains = cloneChainPreference(overrides.PreferredChains)
-	}
-	if overrides.CertificateLifetime != 0 {
-		merged.CertificateLifetime = overrides.CertificateLifetime
-	}
-	if len(overrides.NetworkProxyRaw) > 0 {
-		merged.NetworkProxyRaw = slices.Clone(overrides.NetworkProxyRaw)
-	}
-	merged.Challenges = mergeChallengesConfig(merged.Challenges, overrides.Challenges)
-
-	return merged
-}
-
-func mergeChallengesConfig(base, overrides *caddytls.ChallengesConfig) *caddytls.ChallengesConfig {
-	if base == nil {
-		return cloneChallengesConfig(overrides)
-	}
-	merged := cloneChallengesConfig(base)
-	if overrides == nil {
-		return merged
-	}
-
-	merged.HTTP = mergeHTTPChallengeConfig(merged.HTTP, overrides.HTTP)
-	merged.TLSALPN = mergeTLSALPNChallengeConfig(merged.TLSALPN, overrides.TLSALPN)
-	merged.DNS = mergeDNSChallengeConfig(merged.DNS, overrides.DNS)
-	if overrides.BindHost != "" {
-		merged.BindHost = overrides.BindHost
-	}
-	if overrides.Distributed != nil {
-		value := *overrides.Distributed
-		merged.Distributed = &value
-	}
-
-	return merged
-}
-
-func mergeHTTPChallengeConfig(base, overrides *caddytls.HTTPChallengeConfig) *caddytls.HTTPChallengeConfig {
-	if base == nil {
-		return cloneHTTPChallengeConfig(overrides)
-	}
-	merged := cloneHTTPChallengeConfig(base)
-	if overrides == nil {
-		return merged
-	}
-
-	if overrides.Disabled {
-		merged.Disabled = true
-	}
-	if overrides.AlternatePort != 0 {
-		merged.AlternatePort = overrides.AlternatePort
-	}
-
-	return merged
-}
-
-func mergeTLSALPNChallengeConfig(base, overrides *caddytls.TLSALPNChallengeConfig) *caddytls.TLSALPNChallengeConfig {
-	if base == nil {
-		return cloneTLSALPNChallengeConfig(overrides)
-	}
-	merged := cloneTLSALPNChallengeConfig(base)
-	if overrides == nil {
-		return merged
-	}
-
-	if overrides.Disabled {
-		merged.Disabled = true
-	}
-	if overrides.AlternatePort != 0 {
-		merged.AlternatePort = overrides.AlternatePort
-	}
-
-	return merged
-}
-
-func mergeDNSChallengeConfig(base, overrides *caddytls.DNSChallengeConfig) *caddytls.DNSChallengeConfig {
-	if base == nil {
-		return cloneDNSChallengeConfig(overrides)
-	}
-	merged := cloneDNSChallengeConfig(base)
-	if overrides == nil {
-		return merged
-	}
-
-	if len(overrides.ProviderRaw) > 0 {
-		merged.ProviderRaw = slices.Clone(overrides.ProviderRaw)
-	}
-	if overrides.PropagationDelay != 0 {
-		merged.PropagationDelay = overrides.PropagationDelay
-	}
-	if overrides.PropagationTimeout != 0 {
-		merged.PropagationTimeout = overrides.PropagationTimeout
-	}
-	if overrides.Resolvers != nil {
-		merged.Resolvers = slices.Clone(overrides.Resolvers)
-	}
-	if overrides.OverrideDomain != "" {
-		merged.OverrideDomain = overrides.OverrideDomain
-	}
-	if overrides.TTL != 0 {
-		merged.TTL = overrides.TTL
-	}
-
-	return merged
-}
-
-func cloneACMEIssuer(iss *caddytls.ACMEIssuer) *caddytls.ACMEIssuer {
-	if iss == nil {
-		return nil
-	}
-
-	cloned := *iss
-	cloned.Challenges = cloneChallengesConfig(iss.Challenges)
-	cloned.ExternalAccount = cloneACMEEAB(iss.ExternalAccount)
-	cloned.TrustedRootsPEMFiles = slices.Clone(iss.TrustedRootsPEMFiles)
-	cloned.PreferredChains = cloneChainPreference(iss.PreferredChains)
-	cloned.NetworkProxyRaw = slices.Clone(iss.NetworkProxyRaw)
-
-	return &cloned
-}
-
-func cloneChallengesConfig(cfg *caddytls.ChallengesConfig) *caddytls.ChallengesConfig {
-	if cfg == nil {
-		return nil
-	}
-
-	cloned := *cfg
-	cloned.HTTP = cloneHTTPChallengeConfig(cfg.HTTP)
-	cloned.TLSALPN = cloneTLSALPNChallengeConfig(cfg.TLSALPN)
-	cloned.DNS = cloneDNSChallengeConfig(cfg.DNS)
-	if cfg.Distributed != nil {
-		value := *cfg.Distributed
-		cloned.Distributed = &value
-	}
-
-	return &cloned
-}
-
-func cloneHTTPChallengeConfig(cfg *caddytls.HTTPChallengeConfig) *caddytls.HTTPChallengeConfig {
-	if cfg == nil {
-		return nil
-	}
-
-	cloned := *cfg
-	return &cloned
-}
-
-func cloneTLSALPNChallengeConfig(cfg *caddytls.TLSALPNChallengeConfig) *caddytls.TLSALPNChallengeConfig {
-	if cfg == nil {
-		return nil
-	}
-
-	cloned := *cfg
-	return &cloned
-}
-
-func cloneDNSChallengeConfig(cfg *caddytls.DNSChallengeConfig) *caddytls.DNSChallengeConfig {
-	if cfg == nil {
-		return nil
-	}
-
-	cloned := *cfg
-	cloned.ProviderRaw = slices.Clone(cfg.ProviderRaw)
-	cloned.Resolvers = slices.Clone(cfg.Resolvers)
-
-	return &cloned
-}
-
-func cloneACMEEAB(eab *acme.EAB) *acme.EAB {
-	if eab == nil {
-		return nil
-	}
-
-	cloned := *eab
-	return &cloned
-}
-
-func cloneChainPreference(pref *caddytls.ChainPreference) *caddytls.ChainPreference {
-	if pref == nil {
-		return nil
-	}
-
-	cloned := *pref
-	cloned.RootCommonName = slices.Clone(pref.RootCommonName)
-	cloned.AnyCommonName = slices.Clone(pref.AnyCommonName)
-	if pref.Smallest != nil {
-		value := *pref.Smallest
-		cloned.Smallest = &value
-	}
-
-	return &cloned
-}
-
-func appendUniqueStrings(existing []string, additions ...string) []string {
-	for _, value := range additions {
-		if !slices.Contains(existing, value) {
-			existing = append(existing, value)
-		}
-	}
-	return existing
-}
-
 // newBaseAutomationPolicy returns a new TLS automation policy that gets
 // its values from the global options map. It should be used as the base
 // for any other automation policies. A nil policy (and no error) will be
@@ -981,31 +698,14 @@ func consolidateAutomationPolicies(aps []*caddytls.AutomationPolicy) []*caddytls
 	emptyAPCount := 0
 	origLenAPs := len(aps)
 	// compute the number of empty policies (disregarding subjects) - see #4128
-	// while we're at it,
 	emptyAP := new(caddytls.AutomationPolicy)
 	for i := 0; i < len(aps); i++ {
 		emptyAP.SubjectsRaw = aps[i].SubjectsRaw
-		emptyAP.ManagersRaw = nil
 		if reflect.DeepEqual(aps[i], emptyAP) {
-			// AP is empty
 			emptyAPCount++
-
-			// see if this AP shadows something later
-			shadowIdx := automationPolicyShadows(i, aps)
-			emptyAP.SubjectsRaw = nil
-			if shadowIdx >= 0 {
-				emptyAP.SubjectsRaw = aps[shadowIdx].SubjectsRaw
-				// allow the later policy, which is likely for a wildcard, to have cert
-				// managers ("get_certificate"), since wildcards now cover specific
-				// subdomains by default, when configured (see discussion in #7559)
-				emptyAP.ManagersRaw = aps[shadowIdx].ManagersRaw
-			}
-
-			// if this is the last AP, we can delete it, since auto-https should
-			// pick it up; if it shadows something later that is also empty, we
-			// can similarly delete this; but if it shadows something that is NOT
-			// empty, we must not delete it since the shadowing has a purpose
-			if i == len(aps)-1 || (shadowIdx >= 0 && reflect.DeepEqual(aps[shadowIdx], emptyAP)) {
+			if !automationPolicyHasAllPublicNames(aps[i]) {
+				// if this automation policy has internal names, we might as well remove it
+				// so auto-https can implicitly use the internal issuer
 				aps = slices.Delete(aps, i, i+1)
 				i--
 			}
@@ -1036,7 +736,7 @@ outer:
 			// otherwise the one without any subjects (a catch-all) would be
 			// eaten up by the one with subjects; and if both have subjects, we
 			// need to combine their lists
-			if automationPoliciesHaveSameIssuers(aps[i], aps[j]) &&
+			if reflect.DeepEqual(aps[i].IssuersRaw, aps[j].IssuersRaw) &&
 				reflect.DeepEqual(aps[i].ManagersRaw, aps[j].ManagersRaw) &&
 				bytes.Equal(aps[i].StorageRaw, aps[j].StorageRaw) &&
 				aps[i].MustStaple == aps[j].MustStaple &&
@@ -1128,58 +828,6 @@ func subjectQualifiesForPublicCert(ap *caddytls.AutomationPolicy, subj string) b
 		(strings.Count(subj, "*.") < 2 || ap.OnDemand)
 }
 
-func automationPoliciesHaveSameIssuers(a, b *caddytls.AutomationPolicy) bool {
-	if reflect.DeepEqual(a.IssuersRaw, b.IssuersRaw) {
-		return automationPoliciesHaveCompatibleImplicitIssuers(a, b)
-	}
-	return automationPolicyUsesDefaultInternalIssuer(a) && automationPolicyUsesDefaultInternalIssuer(b)
-}
-
-func automationPolicyUsesDefaultInternalIssuer(ap *caddytls.AutomationPolicy) bool {
-	if len(ap.IssuersRaw) == 0 && len(ap.Issuers) == 0 {
-		return automationPolicyImplicitIssuerClass(ap) == "internal"
-	}
-	return len(ap.IssuersRaw) == 1 &&
-		len(ap.Issuers) == 0 &&
-		string(bytes.TrimSpace(ap.IssuersRaw[0])) == `{"module":"internal"}`
-}
-
-// automationPoliciesHaveCompatibleImplicitIssuers returns whether two policies
-// without explicit issuers can be consolidated without changing default issuer
-// selection for their subjects.
-func automationPoliciesHaveCompatibleImplicitIssuers(a, b *caddytls.AutomationPolicy) bool {
-	if len(a.IssuersRaw) > 0 || len(a.Issuers) > 0 ||
-		len(b.IssuersRaw) > 0 || len(b.Issuers) > 0 {
-		return true
-	}
-
-	aClass := automationPolicyImplicitIssuerClass(a)
-	bClass := automationPolicyImplicitIssuerClass(b)
-	return aClass == "catch-all" || bClass == "catch-all" || aClass == bClass
-}
-
-func automationPolicyImplicitIssuerClass(ap *caddytls.AutomationPolicy) string {
-	if len(ap.SubjectsRaw) == 0 {
-		return "catch-all"
-	}
-
-	hasPublic := slices.ContainsFunc(ap.SubjectsRaw, func(subj string) bool {
-		return subjectQualifiesForPublicCert(ap, subj)
-	})
-	hasInternal := slices.ContainsFunc(ap.SubjectsRaw, func(subj string) bool {
-		return !subjectQualifiesForPublicCert(ap, subj)
-	})
-
-	switch {
-	case hasPublic && hasInternal:
-		return "mixed"
-	case hasPublic:
-		return "public"
-	default:
-		return "internal"
-	}
-}
-
 // 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 {

caddyconfig/httpcaddyfile/tlsapp_test.go

@@ -3,7 +3,6 @@ package httpcaddyfile
 import (
 	"testing"
 
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"github.com/caddyserver/caddy/v2/modules/caddytls"
 )
 
@@ -55,20 +54,3 @@ func TestAutomationPolicyIsSubset(t *testing.T) {
 		}
 	}
 }
-
-func TestAutomationPoliciesAllowSameHostOnDifferentPorts(t *testing.T) {
-	input := `https://example.com:5000 localhost:5000 {
-	respond "one"
-}
-
-https://example.net localhost:8080 {
-	respond "two"
-}
-`
-
-	adapter := caddyfile.Adapter{ServerType: ServerType{}}
-	_, _, err := adapter.Adapt([]byte(input), nil)
-	if err != nil {
-		t.Fatalf("adapting Caddyfile: %v", err)
-	}
-}

caddytest/caddytest.go

@@ -518,7 +518,7 @@ func (tc *Tester) AssertResponseCode(req *http.Request, expectedStatusCode int)
 	return resp
 }
 
-// AssertResponse requests a URI and asserts the status code and body.
+// AssertResponse request a URI and assert the status code and the body contains a string
 func (tc *Tester) AssertResponse(req *http.Request, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 
@@ -541,7 +541,7 @@ func (tc *Tester) AssertResponse(req *http.Request, expectedStatusCode int, expe
 
 // Verb specific test functions
 
-// AssertGetResponse requests a URI with GET and expects a status code and body text.
+// AssertGetResponse GET a URI and expect a statusCode and body text
 func (tc *Tester) AssertGetResponse(requestURI string, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 
@@ -553,7 +553,7 @@ func (tc *Tester) AssertGetResponse(requestURI string, expectedStatusCode int, e
 	return tc.AssertResponse(req, expectedStatusCode, expectedBody)
 }
 
-// AssertDeleteResponse requests a URI with DELETE and expects a status code and body text.
+// AssertDeleteResponse request a URI and expect a statusCode and body text
 func (tc *Tester) AssertDeleteResponse(requestURI string, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 
@@ -565,7 +565,7 @@ func (tc *Tester) AssertDeleteResponse(requestURI string, expectedStatusCode int
 	return tc.AssertResponse(req, expectedStatusCode, expectedBody)
 }
 
-// AssertPostResponseBody requests a URI with POST and asserts the response code and body.
+// AssertPostResponseBody POST to a URI and assert the response code and body
 func (tc *Tester) AssertPostResponseBody(requestURI string, requestHeaders []string, requestBody *bytes.Buffer, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 
@@ -580,7 +580,7 @@ func (tc *Tester) AssertPostResponseBody(requestURI string, requestHeaders []str
 	return tc.AssertResponse(req, expectedStatusCode, expectedBody)
 }
 
-// AssertPutResponseBody requests a URI with PUT and asserts the response code and body.
+// AssertPutResponseBody PUT to a URI and assert the response code and body
 func (tc *Tester) AssertPutResponseBody(requestURI string, requestHeaders []string, requestBody *bytes.Buffer, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 
@@ -595,7 +595,7 @@ func (tc *Tester) AssertPutResponseBody(requestURI string, requestHeaders []stri
 	return tc.AssertResponse(req, expectedStatusCode, expectedBody)
 }
 
-// AssertPatchResponseBody requests a URI with PATCH and asserts the response code and body.
+// AssertPatchResponseBody PATCH to a URI and assert the response code and body
 func (tc *Tester) AssertPatchResponseBody(requestURI string, requestHeaders []string, requestBody *bytes.Buffer, expectedStatusCode int, expectedBody string) (*http.Response, string) {
 	tc.t.Helper()
 

caddytest/integration/autohttps_test.go

@@ -55,28 +55,6 @@ func TestAutoHTTPtoHTTPSRedirectsExplicitPortDifferentFromHTTPSPort(t *testing.T
 	tester.AssertRedirect("http://localhost:9080/", "https://localhost:1234/", http.StatusPermanentRedirect)
 }
 
-func TestAutoHTTPtoHTTPSRedirectsPreferHTTPSPortOverAlternatePort(t *testing.T) {
-	tester := caddytest.NewTester(t)
-	tester.InitServer(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port     9080
-		https_port    9443
-		local_certs
-	}
-	localhost {
-		respond "Canonical"
-	}
-
-	localhost:10443 {
-		respond "Alternate"
-	}
-  `, "caddyfile")
-
-	tester.AssertRedirect("http://localhost:9080/", "https://localhost/", http.StatusPermanentRedirect)
-}
-
 func TestAutoHTTPRedirectsWithHTTPListenerFirstInAddresses(t *testing.T) {
 	tester := caddytest.NewTester(t)
 	tester.InitServer(`

caddytest/integration/caddyfile_adapt/encode_options.caddyfiletest

@@ -18,9 +18,7 @@ encode gzip zstd {
 
 # Long way with a block for each encoding
 encode {
-	zstd {
-		disable_checksum
-	}
+	zstd
 	gzip 5
 }
 
@@ -73,9 +71,7 @@ encode
 										"gzip": {
 											"level": 5
 										},
-										"zstd": {
-											"checksum": false
-										}
+										"zstd": {}
 									},
 									"handler": "encode",
 									"prefer": [

caddytest/integration/caddyfile_adapt/global_options_log_sampling.caddyfiletest

@@ -1,7 +1,7 @@
 {
 	log {
 		sampling {
-			interval 5m
+			interval 300
 			first 50
 			thereafter 40
 		}
@@ -13,7 +13,7 @@
 		"logs": {
 			"default": {
 				"sampling": {
-					"interval": 300000000000,
+					"interval": 300,
 					"first": 50,
 					"thereafter": 40
 				}

caddytest/integration/caddyfile_adapt/heredoc_invalid_marker.caddyfiletest

@@ -6,4 +6,4 @@ handle {
     END!
 }
 ----------
-heredoc marker on line #4 must contain only alphanumeric characters, dashes and underscores; got 'END!'
+heredoc marker on line #4 must contain only alpha-numeric characters, dashes and underscores; got 'END!'

caddytest/integration/caddyfile_adapt/import_block_snippet_invalid_subdirective.caddyfiletest

@@ -1,15 +0,0 @@
-{
-  admin off
-  auto_https off
-}
-
-import testdata/issue_7557_invalid_subdirective_snippet.conf
-
-:8080 {
-  import test {
-  	this_is_nonsense
-  }
-}
-
-----------
-parsing caddyfile tokens for 'reverse_proxy': unrecognized subdirective this_is_nonsense

caddytest/integration/caddyfile_adapt/log_journald_encoder.caddyfiletest

@@ -1,47 +0,0 @@
-{
-	log {
-		format journald {
-			wrap console
-		}
-	}
-}
-
-:80 {
-	respond "Hello, World!"
-}
-----------
-{
-	"logging": {
-		"logs": {
-			"default": {
-				"encoder": {
-					"format": "journald",
-					"wrap": {
-						"format": "console"
-					}
-				}
-			}
-		}
-	},
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":80"
-					],
-					"routes": [
-						{
-							"handle": [
-								{
-									"body": "Hello, World!",
-									"handler": "static_response"
-								}
-							]
-						}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/log_sampling.caddyfiletest

@@ -1,7 +1,7 @@
 :80 {
 	log {
 		sampling {
-			interval 5m
+			interval 300
 			first 50
 			thereafter 40
 		}
@@ -18,7 +18,7 @@
 			},
 			"log0": {
 				"sampling": {
-					"interval": 300000000000,
+					"interval": 300,
 					"first": 50,
 					"thereafter": 40
 				},

caddytest/integration/caddyfile_adapt/metrics_otlp.caddyfiletest

@@ -1,35 +0,0 @@
-{
-	metrics {
-		otlp
-	}
-}
-:80 {
-	respond "Hello"
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":80"
-					],
-					"routes": [
-						{
-							"handle": [
-								{
-									"body": "Hello",
-									"handler": "static_response"
-								}
-							]
-						}
-					]
-				}
-			},
-			"metrics": {
-				"otlp": true
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/reverse_proxy_retry_match_oneline.caddyfiletest

@@ -1,58 +0,0 @@
-:8884
-
-reverse_proxy 127.0.0.1:65535 {
-	lb_retries 3
-	lb_retry_match expression `{rp.status_code} in [502, 503]`
-	lb_retry_match expression `{rp.is_transport_error} || {rp.status_code} == 502`
-	lb_retry_match expression `method('POST') && {rp.status_code} == 503`
-	lb_retry_match `{rp.status_code} == 504`
-	lb_retry_match `{rp.is_transport_error} && method('PUT')`
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":8884"
-					],
-					"routes": [
-						{
-							"handle": [
-								{
-									"handler": "reverse_proxy",
-									"load_balancing": {
-										"retries": 3,
-										"retry_match": [
-											{
-												"expression": "{http.reverse_proxy.status_code} in [502, 503]"
-											},
-											{
-												"expression": "{http.reverse_proxy.is_transport_error} || {http.reverse_proxy.status_code} == 502"
-											},
-											{
-												"expression": "method('POST') \u0026\u0026 {http.reverse_proxy.status_code} == 503"
-											},
-											{
-												"expression": "{http.reverse_proxy.status_code} == 504"
-											},
-											{
-												"expression": "{http.reverse_proxy.is_transport_error} \u0026\u0026 method('PUT')"
-											}
-										]
-									},
-									"upstreams": [
-										{
-											"dial": "127.0.0.1:65535"
-										}
-									]
-								}
-							]
-						}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/reverse_proxy_retry_match_response.caddyfiletest

@@ -1,147 +0,0 @@
-:8884
-
-reverse_proxy 127.0.0.1:65535 {
-	lb_retries 5
-
-	# request matchers (backward-compatible, non-expression)
-	lb_retry_match {
-		method POST PUT
-	}
-	lb_retry_match {
-		path /foo*
-	}
-	lb_retry_match {
-		header X-Idempotency-Key *
-	}
-
-	# response status code via expression
-	lb_retry_match {
-		expression `{rp.status_code} in [502, 503, 504]`
-	}
-
-	# response header via expression
-	lb_retry_match {
-		expression `{rp.header.X-Retry} == "true"`
-	}
-
-	# CEL request functions combined with response placeholders
-	lb_retry_match {
-		expression `method('POST') && {rp.status_code} >= 500`
-	}
-	lb_retry_match {
-		expression `path('/api*') && {rp.status_code} in [502, 503]`
-	}
-	lb_retry_match {
-		expression `host('example.com') && {rp.status_code} == 503`
-	}
-	lb_retry_match {
-		expression `query({'retry': 'true'}) && {rp.status_code} >= 500`
-	}
-	lb_retry_match {
-		expression `header({'X-Idempotency-Key': '*'}) && {rp.status_code} in [502, 503]`
-	}
-	lb_retry_match {
-		expression `protocol('https') && {rp.status_code} == 502`
-	}
-	lb_retry_match {
-		expression `path_regexp('^/api/v[0-9]+/') && {rp.status_code} >= 500`
-	}
-	lb_retry_match {
-		expression `header_regexp('Content-Type', '^application/json') && {rp.status_code} == 502`
-	}
-
-	# transport error handling via placeholder
-	lb_retry_match {
-		expression `{rp.is_transport_error} || {rp.status_code} in [502, 503]`
-	}
-	lb_retry_match {
-		expression `{rp.is_transport_error} && method('POST')`
-	}
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":8884"
-					],
-					"routes": [
-						{
-							"handle": [
-								{
-									"handler": "reverse_proxy",
-									"load_balancing": {
-										"retries": 5,
-										"retry_match": [
-											{
-												"method": [
-													"POST",
-													"PUT"
-												]
-											},
-											{
-												"path": [
-													"/foo*"
-												]
-											},
-											{
-												"header": {
-													"X-Idempotency-Key": [
-														"*"
-													]
-												}
-											},
-											{
-												"expression": "{http.reverse_proxy.status_code} in [502, 503, 504]"
-											},
-											{
-												"expression": "{http.reverse_proxy.header.X-Retry} == \"true\""
-											},
-											{
-												"expression": "method('POST') \u0026\u0026 {http.reverse_proxy.status_code} \u003e= 500"
-											},
-											{
-												"expression": "path('/api*') \u0026\u0026 {http.reverse_proxy.status_code} in [502, 503]"
-											},
-											{
-												"expression": "host('example.com') \u0026\u0026 {http.reverse_proxy.status_code} == 503"
-											},
-											{
-												"expression": "query({'retry': 'true'}) \u0026\u0026 {http.reverse_proxy.status_code} \u003e= 500"
-											},
-											{
-												"expression": "header({'X-Idempotency-Key': '*'}) \u0026\u0026 {http.reverse_proxy.status_code} in [502, 503]"
-											},
-											{
-												"expression": "protocol('https') \u0026\u0026 {http.reverse_proxy.status_code} == 502"
-											},
-											{
-												"expression": "path_regexp('^/api/v[0-9]+/') \u0026\u0026 {http.reverse_proxy.status_code} \u003e= 500"
-											},
-											{
-												"expression": "header_regexp('Content-Type', '^application/json') \u0026\u0026 {http.reverse_proxy.status_code} == 502"
-											},
-											{
-												"expression": "{http.reverse_proxy.is_transport_error} || {http.reverse_proxy.status_code} in [502, 503]"
-											},
-											{
-												"expression": "{http.reverse_proxy.is_transport_error} \u0026\u0026 method('POST')"
-											}
-										]
-									},
-									"upstreams": [
-										{
-											"dial": "127.0.0.1:65535"
-										}
-									]
-								}
-							]
-						}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/reverse_proxy_stream_buffer_size.caddyfiletest

@@ -1,56 +0,0 @@
-https://example.com {
-	reverse_proxy https://localhost:54321 {
-		stream_buffer_size 8KB
-	}
-}
-
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":443"
-					],
-					"routes": [
-						{
-							"match": [
-								{
-									"host": [
-										"example.com"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"handler": "reverse_proxy",
-													"stream_buffer_size": 8000,
-													"transport": {
-														"protocol": "http",
-														"tls": {}
-													},
-													"upstreams": [
-														{
-															"dial": "localhost:54321"
-														}
-													]
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/tls_automation_policies_11.caddyfiletest

@@ -54,6 +54,11 @@ b.com {
 								"via": "http"
 							}
 						]
+					},
+					{
+						"subjects": [
+							"b.com"
+						]
 					}
 				]
 			}

caddytest/integration/caddyfile_adapt/tls_automation_policies_12.caddyfiletest

@@ -1,96 +0,0 @@
-# example from https://github.com/caddyserver/caddy/issues/7559
-*.test.local {
-	tls {
-		get_certificate http http://cert-server:9000/certs
-	}
-	respond "wildcard"
-}
-
-# certificate for this subdomain is covered by wildcard above
-subdomain.test.local {
-	respond "subdomain"
-}
-
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":443"
-					],
-					"routes": [
-						{
-							"match": [
-								{
-									"host": [
-										"subdomain.test.local"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"body": "subdomain",
-													"handler": "static_response"
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						},
-						{
-							"match": [
-								{
-									"host": [
-										"*.test.local"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"body": "wildcard",
-													"handler": "static_response"
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						}
-					]
-				}
-			}
-		},
-		"tls": {
-			"automation": {
-				"policies": [
-					{
-						"subjects": [
-							"*.test.local"
-						],
-						"get_certificate": [
-							{
-								"url": "http://cert-server:9000/certs",
-								"via": "http"
-							}
-						]
-					}
-				]
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/tls_client_auth_combined_trust_pool.caddyfiletest

@@ -1,87 +0,0 @@
-localhost
-
-respond "hello from localhost"
-tls {
-	client_auth {
-		mode request
-		trust_pool combined {
-			source inline {
-				trust_der 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
-			}
-			source file {
-				pem_file ../caddy.ca.cer
-			}
-		}
-	}
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":443"
-					],
-					"routes": [
-						{
-							"match": [
-								{
-									"host": [
-										"localhost"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"body": "hello from localhost",
-													"handler": "static_response"
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						}
-					],
-					"tls_connection_policies": [
-						{
-							"match": {
-								"sni": [
-									"localhost"
-								]
-							},
-							"client_authentication": {
-								"ca": {
-									"provider": "combined",
-									"sources": [
-										{
-											"provider": "inline",
-											"trusted_ca_certs": [
-												"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"
-											]
-										},
-										{
-											"pem_files": [
-												"../caddy.ca.cer"
-											],
-											"provider": "file"
-										}
-									]
-								},
-								"mode": "request"
-							}
-						},
-						{}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/tls_client_auth_combined_trust_pool_pki.caddyfiletest

@@ -1,87 +0,0 @@
-localhost
-
-respond "hello from localhost"
-tls {
-	client_auth {
-		mode require_and_verify
-		trust_pool combined {
-			source inline {
-				trust_der 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
-			}
-			source pki_root {
-				authority local
-			}
-		}
-	}
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":443"
-					],
-					"routes": [
-						{
-							"match": [
-								{
-									"host": [
-										"localhost"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"body": "hello from localhost",
-													"handler": "static_response"
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						}
-					],
-					"tls_connection_policies": [
-						{
-							"match": {
-								"sni": [
-									"localhost"
-								]
-							},
-							"client_authentication": {
-								"ca": {
-									"provider": "combined",
-									"sources": [
-										{
-											"provider": "inline",
-											"trusted_ca_certs": [
-												"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"
-											]
-										},
-										{
-											"authority": [
-												"local"
-											],
-											"provider": "pki_root"
-										}
-									]
-								},
-								"mode": "require_and_verify"
-							}
-						},
-						{}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/caddyfile_adapt/tls_client_auth_system_trust_pool.caddyfiletest

@@ -1,66 +0,0 @@
-localhost
-
-respond "hello from localhost"
-tls {
-	client_auth {
-		mode request
-		trust_pool system
-	}
-}
-----------
-{
-	"apps": {
-		"http": {
-			"servers": {
-				"srv0": {
-					"listen": [
-						":443"
-					],
-					"routes": [
-						{
-							"match": [
-								{
-									"host": [
-										"localhost"
-									]
-								}
-							],
-							"handle": [
-								{
-									"handler": "subroute",
-									"routes": [
-										{
-											"handle": [
-												{
-													"body": "hello from localhost",
-													"handler": "static_response"
-												}
-											]
-										}
-									]
-								}
-							],
-							"terminal": true
-						}
-					],
-					"tls_connection_policies": [
-						{
-							"match": {
-								"sni": [
-									"localhost"
-								]
-							},
-							"client_authentication": {
-								"ca": {
-									"provider": "system"
-								},
-								"mode": "request"
-							}
-						},
-						{}
-					]
-				}
-			}
-		}
-	}
-}

caddytest/integration/forwardauth_test.go

@@ -190,7 +190,7 @@ func TestForwardAuthCopyHeadersAuthResponseWins(t *testing.T) {
 	// its own values. The backend must receive the auth service values.
 	req, _ := http.NewRequest(http.MethodGet, "http://localhost:9080/", nil)
 	req.Header.Set("Authorization", "Bearer token123")
-	req.Header.Set("X-User-Id", "forged-id")     // must be overwritten
+	req.Header.Set("X-User-Id", "forged-id")   // must be overwritten
 	req.Header.Set("X-User-Role", "forged-role") // must be overwritten
 	tester.AssertResponse(req, http.StatusOK, "ok")
 

caddytest/integration/reverseproxy_test.go

@@ -1,25 +1,15 @@
 package integration
 
 import (
-	"crypto/ed25519"
-	"crypto/rand"
-	"crypto/tls"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"errors"
 	"fmt"
-	"math/big"
 	"net"
 	"net/http"
 	"os"
 	"runtime"
 	"strings"
-	"sync/atomic"
 	"testing"
-	"time"
 
 	"github.com/caddyserver/caddy/v2/caddytest"
-	"github.com/quic-go/quic-go/http3"
 )
 
 func TestSRVReverseProxy(t *testing.T) {
@@ -572,370 +562,3 @@ func TestReverseProxyHealthCheckUnixSocketWithoutPort(t *testing.T) {
 
 	tester.AssertGetResponse("http://localhost:9080/", 200, "Hello, World!")
 }
-
-// TestReverseProxyRetryMatchStatusCode verifies that lb_retry_match with a
-// CEL expression matching on {rp.status_code} causes the request to be
-// retried on the next upstream when the first upstream returns a matching
-// status code
-func TestReverseProxyRetryMatchStatusCode(t *testing.T) {
-	// Bad upstream: returns 502
-	badSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.WriteHeader(http.StatusBadGateway)
-		}),
-	}
-	badLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go badSrv.Serve(badLn)
-	t.Cleanup(func() { badSrv.Close(); badLn.Close() })
-
-	// Good upstream: returns 200
-	goodSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.Write([]byte("ok"))
-		}),
-	}
-	goodLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go goodSrv.Serve(goodLn)
-	t.Cleanup(func() { goodSrv.Close(); goodLn.Close() })
-
-	tester := caddytest.NewTester(t)
-	tester.InitServer(fmt.Sprintf(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port 9080
-		https_port 9443
-		grace_period 1ns
-	}
-	http://localhost:9080 {
-		reverse_proxy %s %s {
-			lb_policy round_robin
-			lb_retries 1
-			lb_retry_match {
-				expression `+"`{rp.status_code} in [502, 503]`"+`
-			}
-		}
-	}
-	`, goodLn.Addr().String(), badLn.Addr().String()), "caddyfile")
-
-	tester.AssertGetResponse("http://localhost:9080/", 200, "ok")
-}
-
-// TestReverseProxyRetryMatchHeader verifies that lb_retry_match with a CEL
-// expression matching on {rp.header.*} causes the request to be retried when
-// the upstream sets a matching response header
-func TestReverseProxyRetryMatchHeader(t *testing.T) {
-	var badHits atomic.Int32
-
-	// Bad upstream: returns 200 but signals retry via header
-	badSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			badHits.Add(1)
-			w.Header().Set("X-Upstream-Retry", "true")
-			w.Write([]byte("bad"))
-		}),
-	}
-	badLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go badSrv.Serve(badLn)
-	t.Cleanup(func() { badSrv.Close(); badLn.Close() })
-
-	// Good upstream: returns 200 without retry header
-	goodSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.Write([]byte("good"))
-		}),
-	}
-	goodLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go goodSrv.Serve(goodLn)
-	t.Cleanup(func() { goodSrv.Close(); goodLn.Close() })
-
-	tester := caddytest.NewTester(t)
-	tester.InitServer(fmt.Sprintf(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port 9080
-		https_port 9443
-		grace_period 1ns
-	}
-	http://localhost:9080 {
-		reverse_proxy %s %s {
-			lb_policy round_robin
-			lb_retries 1
-			lb_retry_match {
-				expression `+"`{rp.header.X-Upstream-Retry} == \"true\"`"+`
-			}
-		}
-	}
-	`, goodLn.Addr().String(), badLn.Addr().String()), "caddyfile")
-
-	tester.AssertGetResponse("http://localhost:9080/", 200, "good")
-
-	if badHits.Load() != 1 {
-		t.Errorf("bad upstream hits: got %d, want 1", badHits.Load())
-	}
-}
-
-// TestReverseProxyRetryMatchCombined verifies that a CEL expression combining
-// request path matching with response status code matching works correctly -
-// only retrying when both conditions are met
-func TestReverseProxyRetryMatchCombined(t *testing.T) {
-	// Upstream: returns 502 for all requests
-	srv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.WriteHeader(http.StatusBadGateway)
-		}),
-	}
-	ln, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go srv.Serve(ln)
-	t.Cleanup(func() { srv.Close(); ln.Close() })
-
-	// Good upstream
-	goodSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.Write([]byte("ok"))
-		}),
-	}
-	goodLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go goodSrv.Serve(goodLn)
-	t.Cleanup(func() { goodSrv.Close(); goodLn.Close() })
-
-	tester := caddytest.NewTester(t)
-	tester.InitServer(fmt.Sprintf(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port 9080
-		https_port 9443
-		grace_period 1ns
-	}
-	http://localhost:9080 {
-		reverse_proxy %s %s {
-			lb_policy round_robin
-			lb_retries 1
-			lb_retry_match {
-				expression `+"`path('/retry*') && {rp.status_code} in [502, 503]`"+`
-			}
-		}
-	}
-	`, goodLn.Addr().String(), ln.Addr().String()), "caddyfile")
-
-	// /retry path matches the expression - should retry to good upstream
-	tester.AssertGetResponse("http://localhost:9080/retry", 200, "ok")
-
-	// /other path does NOT match - should return the 502
-	req, _ := http.NewRequest(http.MethodGet, "http://localhost:9080/other", nil)
-	tester.AssertResponse(req, 502, "")
-}
-
-// TestReverseProxyRetryMatchIsTransportError verifies that the
-// {rp.is_transport_error} == true CEL function correctly identifies transport errors
-// and allows retrying them alongside response-based matching
-func TestReverseProxyRetryMatchIsTransportError(t *testing.T) {
-	// Good upstream: returns 200
-	goodSrv := &http.Server{
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-			w.Write([]byte("ok"))
-		}),
-	}
-	goodLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	go goodSrv.Serve(goodLn)
-	t.Cleanup(func() { goodSrv.Close(); goodLn.Close() })
-
-	// Broken upstream: accepts connections but closes immediately
-	brokenLn, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	t.Cleanup(func() { brokenLn.Close() })
-	go func() {
-		for {
-			conn, err := brokenLn.Accept()
-			if err != nil {
-				return
-			}
-			conn.Close()
-		}
-	}()
-
-	tester := caddytest.NewTester(t)
-	tester.InitServer(fmt.Sprintf(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port 9080
-		https_port 9443
-		grace_period 1ns
-	}
-	http://localhost:9080 {
-		reverse_proxy %s %s {
-			lb_policy round_robin
-			lb_retries 1
-			lb_retry_match {
-				expression `+"`{rp.is_transport_error} || {rp.status_code} in [502, 503]`"+`
-			}
-		}
-	}
-	`, goodLn.Addr().String(), brokenLn.Addr().String()), "caddyfile")
-
-	// Transport error on broken upstream should be retried to good upstream
-	tester.AssertGetResponse("http://localhost:9080/", 200, "ok")
-}
-
-func TestReverseProxyHTTP3SNIPlaceholderHost(t *testing.T) {
-	const expectedSNI = "app.test.local"
-
-	upstreamAddr, gotSNI := startHTTP3SNITestServer(t)
-
-	tester := caddytest.NewTester(t)
-	tester.InitServer(fmt.Sprintf(`
-	{
-		skip_install_trust
-		admin localhost:2999
-		http_port 9080
-		grace_period 1ns
-	}
-:9080 {
-		reverse_proxy https://%s {
-			transport http {
-				versions 3
-				tls_server_name {host}
-				tls_insecure_skip_verify
-			}
-		}
-	}
-	`, upstreamAddr), "caddyfile")
-
-	req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:9080/", nil)
-	if err != nil {
-		t.Fatalf("failed to create request: %v", err)
-	}
-	req.Host = expectedSNI
-
-	tester.AssertResponse(req, 200, "ok")
-
-	select {
-	case sni := <-gotSNI:
-		if sni != expectedSNI {
-			t.Fatalf("HTTP/3 upstream SNI = %q, want %q", sni, expectedSNI)
-		}
-		if sni == "{http.request.host}" {
-			t.Fatal("HTTP/3 upstream SNI was not expanded from the adapted placeholder")
-		}
-	case <-time.After(5 * time.Second):
-		t.Fatal("timed out waiting for HTTP/3 upstream SNI")
-	}
-}
-
-func startHTTP3SNITestServer(t *testing.T) (string, <-chan string) {
-	t.Helper()
-
-	gotSNI := make(chan string, 1)
-	udpConn, err := net.ListenPacket("udp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen for HTTP/3 upstream: %v", err)
-	}
-
-	server := &http3.Server{
-		TLSConfig: http3SNITestTLSConfig(t, func(sni string) {
-			select {
-			case gotSNI <- sni:
-			default:
-			}
-		}),
-		Handler: http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
-			fmt.Fprint(w, "ok")
-		}),
-	}
-
-	done := make(chan struct{})
-	errs := make(chan error, 1)
-	go func() {
-		defer close(done)
-		err := server.Serve(udpConn)
-		if err != nil && !errors.Is(err, http.ErrServerClosed) && !errors.Is(err, net.ErrClosed) {
-			errs <- err
-		}
-	}()
-
-	t.Cleanup(func() {
-		_ = server.Close()
-		_ = udpConn.Close()
-		select {
-		case <-done:
-		case <-time.After(5 * time.Second):
-			t.Error("timed out waiting for HTTP/3 upstream server to stop")
-		}
-		select {
-		case err := <-errs:
-			t.Errorf("HTTP/3 upstream server failed: %v", err)
-		default:
-		}
-	})
-
-	return udpConn.LocalAddr().String(), gotSNI
-}
-
-func http3SNITestTLSConfig(t *testing.T, recordSNI func(string)) *tls.Config {
-	t.Helper()
-
-	publicKey, privateKey, err := ed25519.GenerateKey(rand.Reader)
-	if err != nil {
-		t.Fatalf("failed to generate HTTP/3 upstream private key: %v", err)
-	}
-
-	certTemplate := &x509.Certificate{
-		SerialNumber: big.NewInt(1),
-		Subject: pkix.Name{
-			CommonName: "HTTP/3 SNI test upstream",
-		},
-		NotBefore:             time.Now().Add(-time.Hour),
-		NotAfter:              time.Now().Add(time.Hour),
-		DNSNames:              []string{"app.test.local"},
-		IPAddresses:           []net.IP{net.IPv4(127, 0, 0, 1)},
-		KeyUsage:              x509.KeyUsageDigitalSignature,
-		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-		BasicConstraintsValid: true,
-	}
-
-	certDER, err := x509.CreateCertificate(rand.Reader, certTemplate, certTemplate, publicKey, privateKey)
-	if err != nil {
-		t.Fatalf("failed to create HTTP/3 upstream certificate: %v", err)
-	}
-	cert := tls.Certificate{
-		Certificate: [][]byte{certDER},
-		PrivateKey:  privateKey,
-	}
-	baseConfig := &tls.Config{
-		Certificates: []tls.Certificate{cert},
-	}
-
-	return &tls.Config{
-		Certificates: []tls.Certificate{cert},
-		GetConfigForClient: func(hello *tls.ClientHelloInfo) (*tls.Config, error) {
-			recordSNI(hello.ServerName)
-			return baseConfig.Clone(), nil
-		},
-	}
-}

caddytest/integration/stream_test.go

@@ -159,7 +159,7 @@ func testH2ToH2CStreamServeH2C(t *testing.T) *http.Server {
 		}
 		// We only accept HTTP/2!
 		if r.ProtoMajor != 2 {
-			t.Error("Not an HTTP/2 request, rejected!")
+			t.Error("Not a HTTP/2 request, rejected!")
 			w.WriteHeader(http.StatusInternalServerError)
 			return
 		}

caddytest/integration/testdata/issue_7557_invalid_subdirective_snippet.conf

@@ -1,7 +0,0 @@
-# Used by import_block_snippet_invalid_subdirective.caddyfiletest
-
-(test) {
-  reverse_proxy {
-    {block}
-  }
-}

cmd/commandfuncs.go

@@ -58,7 +58,7 @@ func cmdStart(fl Flags) (int, error) {
 
 	// open a listener to which the child process will connect when
 	// it is ready to confirm that it has successfully started
-	ln, err := listenTCPForPingback(net.Listen)
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
 	if err != nil {
 		return caddy.ExitCodeFailedStartup,
 			fmt.Errorf("opening listener for success confirmation: %v", err)
@@ -169,22 +169,6 @@ func cmdStart(fl Flags) (int, error) {
 	return caddy.ExitCodeSuccess, nil
 }
 
-type tcpListenFunc func(network, address string) (net.Listener, error)
-
-func listenTCPForPingback(listen tcpListenFunc) (net.Listener, error) {
-	ln, ipv4Err := listen("tcp4", "127.0.0.1:0")
-	if ipv4Err == nil {
-		return ln, nil
-	}
-
-	ln, ipv6Err := listen("tcp6", "[::1]:0")
-	if ipv6Err == nil {
-		return ln, nil
-	}
-
-	return nil, fmt.Errorf("listen on 127.0.0.1:0: %v; listen on [::1]:0: %v", ipv4Err, ipv6Err)
-}
-
 func cmdRun(fl Flags) (int, error) {
 	caddy.TrapSignals()
 

cmd/commands.go

@@ -566,7 +566,7 @@ argument of --directory. If the directory does not exist, it will be created.
 // following format:
 //
 //   - lowercase
-//   - ASCII lowercase letters, digits and hyphens only
+//   - alphanumeric and hyphen characters only
 //   - cannot start or end with a hyphen
 //   - hyphen cannot be adjacent to another hyphen
 //

cmd/main_test.go

@@ -1,8 +1,6 @@
 package caddycmd
 
 import (
-	"errors"
-	"net"
 	"reflect"
 	"strings"
 	"testing"
@@ -171,80 +169,6 @@ here"
 	}
 }
 
-func TestListenTCPForPingbackUsesIPv4Loopback(t *testing.T) {
-	var calls []string
-	expected := &stubListener{addr: &net.TCPAddr{IP: net.ParseIP("127.0.0.1"), Port: 1234}}
-
-	actual, err := listenTCPForPingback(func(network, address string) (net.Listener, error) {
-		calls = append(calls, network+" "+address)
-		return expected, nil
-	})
-	if err != nil {
-		t.Fatalf("listenTCPForPingback returned error: %v", err)
-	}
-	if actual != expected {
-		t.Fatalf("expected listener %p, got %p", expected, actual)
-	}
-
-	expectCalls := []string{"tcp4 127.0.0.1:0"}
-	if !reflect.DeepEqual(calls, expectCalls) {
-		t.Fatalf("expected calls %v, got %v", expectCalls, calls)
-	}
-}
-
-func TestListenTCPForPingbackFallsBackToIPv6Loopback(t *testing.T) {
-	var calls []string
-	expected := &stubListener{addr: &net.TCPAddr{IP: net.ParseIP("::1"), Port: 1234}}
-
-	actual, err := listenTCPForPingback(func(network, address string) (net.Listener, error) {
-		calls = append(calls, network+" "+address)
-		if len(calls) == 1 {
-			return nil, errors.New("ipv4 unavailable")
-		}
-		return expected, nil
-	})
-	if err != nil {
-		t.Fatalf("listenTCPForPingback returned error: %v", err)
-	}
-	if actual != expected {
-		t.Fatalf("expected listener %p, got %p", expected, actual)
-	}
-
-	expectCalls := []string{"tcp4 127.0.0.1:0", "tcp6 [::1]:0"}
-	if !reflect.DeepEqual(calls, expectCalls) {
-		t.Fatalf("expected calls %v, got %v", expectCalls, calls)
-	}
-}
-
-func TestListenTCPForPingbackReportsBothFailures(t *testing.T) {
-	_, err := listenTCPForPingback(func(network, address string) (net.Listener, error) {
-		return nil, errors.New(network + " failed")
-	})
-	if err == nil {
-		t.Fatal("expected error")
-	}
-	if !strings.Contains(err.Error(), "tcp4 failed") ||
-		!strings.Contains(err.Error(), "tcp6 failed") {
-		t.Fatalf("expected both listener errors, got: %v", err)
-	}
-}
-
-type stubListener struct {
-	addr net.Addr
-}
-
-func (sl *stubListener) Accept() (net.Conn, error) {
-	return nil, net.ErrClosed
-}
-
-func (sl *stubListener) Close() error {
-	return nil
-}
-
-func (sl *stubListener) Addr() net.Addr {
-	return sl.addr
-}
-
 func Test_isCaddyfile(t *testing.T) {
 	type args struct {
 		configFile  string

cmd/packagesfuncs.go

@@ -234,7 +234,7 @@ func getModules() (standard, nonstandard, unknown []moduleInfo, err error) {
 		// not sure why), and since New() should return a pointer
 		// value, we need to dereference it first
 		iface := any(modInfo.New())
-		if rv := reflect.ValueOf(iface); rv.Kind() == reflect.Pointer {
+		if rv := reflect.ValueOf(iface); rv.Kind() == reflect.Ptr {
 			iface = reflect.New(reflect.TypeOf(iface).Elem()).Elem().Interface()
 		}
 		modPkgPath := reflect.TypeOf(iface).PkgPath()

context.go

@@ -378,7 +378,7 @@ func (ctx Context) LoadModuleByID(id string, rawMsg json.RawMessage) (any, error
 	// value must be a pointer for unmarshaling into concrete type, even if
 	// the module's concrete type is a slice or map; New() *should* return
 	// a pointer, otherwise unmarshaling errors or panics will occur
-	if rv := reflect.ValueOf(val); rv.Kind() != reflect.Pointer {
+	if rv := reflect.ValueOf(val); rv.Kind() != reflect.Ptr {
 		log.Printf("[WARNING] ModuleInfo.New() for module '%s' did not return a pointer,"+
 			" so we are using reflection to make a pointer instead; please fix this by"+
 			" using new(Type) or &Type notation in your module's New() function.", id)

go.mod

@@ -1,26 +1,26 @@
 module github.com/caddyserver/caddy/v2
 
-go 1.25.1
+go 1.25.0
 
 require (
 	github.com/BurntSushi/toml v1.6.0
-	github.com/DeRuina/timberjack v1.4.2
+	github.com/DeRuina/timberjack v1.4.0
 	github.com/KimMachineGun/automemlimit v0.7.5
 	github.com/Masterminds/sprig/v3 v3.3.0
-	github.com/alecthomas/chroma/v2 v2.24.1
+	github.com/alecthomas/chroma/v2 v2.23.1
 	github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b
-	github.com/caddyserver/certmagic v0.25.3
+	github.com/caddyserver/certmagic v0.25.2
 	github.com/caddyserver/zerossl v0.1.5
 	github.com/cloudflare/circl v1.6.3
 	github.com/dustin/go-humanize v1.0.1
 	github.com/go-chi/chi/v5 v5.2.5
-	github.com/google/cel-go v0.28.1
+	github.com/google/cel-go v0.27.0
 	github.com/google/uuid v1.6.0
-	github.com/klauspost/compress v1.18.6
+	github.com/klauspost/compress v1.18.5
 	github.com/klauspost/cpuid/v2 v2.3.0
 	github.com/mholt/acmez/v3 v3.1.6
 	github.com/prometheus/client_golang v1.23.2
-	github.com/quic-go/quic-go v0.59.1
+	github.com/quic-go/quic-go v0.59.0
 	github.com/smallstep/certificates v0.30.2
 	github.com/smallstep/nosql v0.8.0
 	github.com/smallstep/truststore v0.13.0
@@ -30,29 +30,27 @@ require (
 	github.com/tailscale/tscert v0.0.0-20251216020129-aea342f6d747
 	github.com/yuin/goldmark v1.8.2
 	github.com/yuin/goldmark-highlighting/v2 v2.0.0-20230729083705-37449abec8cc
-	go.opentelemetry.io/contrib/bridges/prometheus v0.68.0
-	go.opentelemetry.io/contrib/exporters/autoexport v0.68.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0
-	go.opentelemetry.io/contrib/propagators/autoprop v0.68.0
-	go.opentelemetry.io/otel v1.43.0
-	go.opentelemetry.io/otel/sdk v1.43.0
-	go.opentelemetry.io/otel/sdk/metric v1.43.0
-	go.step.sm/crypto v0.81.0
+	go.opentelemetry.io/contrib/exporters/autoexport v0.67.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.67.0
+	go.opentelemetry.io/contrib/propagators/autoprop v0.67.0
+	go.opentelemetry.io/otel v1.42.0
+	go.opentelemetry.io/otel/sdk v1.42.0
+	go.step.sm/crypto v0.77.1
 	go.uber.org/automaxprocs v1.6.0
-	go.uber.org/zap v1.28.0
+	go.uber.org/zap v1.27.1
 	go.uber.org/zap/exp v0.3.0
-	golang.org/x/crypto v0.52.0
-	golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541
-	golang.org/x/net v0.55.0
+	golang.org/x/crypto v0.49.0
+	golang.org/x/crypto/x509roots/fallback v0.0.0-20260323153451-8400f4a93807
+	golang.org/x/net v0.52.0
 	golang.org/x/sync v0.20.0
-	golang.org/x/term v0.43.0
+	golang.org/x/term v0.41.0
 	golang.org/x/time v0.15.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	cel.dev/expr v0.25.1 // indirect
-	cloud.google.com/go/auth v0.20.0 // indirect
+	cloud.google.com/go/auth v0.18.2 // indirect
 	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
 	cloud.google.com/go/compute/metadata v0.9.0 // indirect
 	dario.cat/mergo v1.0.2 // indirect
@@ -63,16 +61,16 @@ require (
 	github.com/coreos/go-oidc/v3 v3.17.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.5 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
+	github.com/go-jose/go-jose/v3 v3.0.4 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
 	github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745 // indirect
 	github.com/google/go-tpm v0.9.8 // indirect
 	github.com/google/go-tspi v0.3.0 // indirect
 	github.com/google/s2a-go v0.1.9 // indirect
-	github.com/googleapis/enterprise-certificate-proxy v0.3.15 // indirect
-	github.com/googleapis/gax-go/v2 v2.22.0 // indirect
+	github.com/googleapis/enterprise-certificate-proxy v0.3.14 // indirect
+	github.com/googleapis/gax-go/v2 v2.18.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
-	github.com/jackc/pgx/v5 v5.9.2 // indirect
+	github.com/jackc/pgx/v5 v5.8.0 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/kylelemons/godebug v1.1.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
@@ -89,29 +87,31 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/zeebo/blake3 v0.2.4 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/propagators/aws v1.43.0 // indirect
-	go.opentelemetry.io/contrib/propagators/b3 v1.43.0 // indirect
-	go.opentelemetry.io/contrib/propagators/jaeger v1.43.0 // indirect
-	go.opentelemetry.io/contrib/propagators/ot v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.19.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.19.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/prometheus v0.65.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.19.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.43.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.43.0 // indirect
-	go.opentelemetry.io/otel/log v0.19.0 // indirect
-	go.opentelemetry.io/otel/sdk/log v0.19.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.4 // indirect
+	go.opentelemetry.io/contrib/bridges/prometheus v0.67.0 // indirect
+	go.opentelemetry.io/contrib/propagators/aws v1.42.0 // indirect
+	go.opentelemetry.io/contrib/propagators/b3 v1.42.0 // indirect
+	go.opentelemetry.io/contrib/propagators/jaeger v1.42.0 // indirect
+	go.opentelemetry.io/contrib/propagators/ot v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc v0.18.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.18.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/prometheus v0.64.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.18.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.42.0 // indirect
+	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.42.0 // indirect
+	go.opentelemetry.io/otel/log v0.18.0 // indirect
+	go.opentelemetry.io/otel/sdk/log v0.18.0 // indirect
+	go.opentelemetry.io/otel/sdk/metric v1.42.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
-	google.golang.org/api v0.277.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4 // indirect
+	google.golang.org/api v0.271.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260226221140-a57be14db171 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171 // indirect
 	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 // indirect
 )
 
@@ -129,7 +129,7 @@ require (
 	github.com/dgraph-io/badger/v2 v2.2007.4 // indirect
 	github.com/dgraph-io/ristretto v0.2.0 // indirect
 	github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
-	github.com/dlclark/regexp2 v1.12.0 // indirect
+	github.com/dlclark/regexp2 v1.11.5 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
@@ -149,7 +149,7 @@ require (
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/pires/go-proxyproto v0.12.0
+	github.com/pires/go-proxyproto v0.11.0
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.6.2
 	github.com/prometheus/common v0.67.5 // indirect
@@ -163,16 +163,16 @@ require (
 	github.com/spf13/cast v1.7.0 // indirect
 	github.com/urfave/cli v1.22.17 // indirect
 	go.etcd.io/bbolt v1.4.3 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 // indirect
-	go.opentelemetry.io/otel/metric v1.43.0 // indirect
-	go.opentelemetry.io/otel/trace v1.43.0
-	go.opentelemetry.io/proto/otlp v1.10.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.42.0 // indirect
+	go.opentelemetry.io/otel/metric v1.42.0 // indirect
+	go.opentelemetry.io/otel/trace v1.42.0
+	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/mod v0.35.0 // indirect
-	golang.org/x/sys v0.45.0
-	golang.org/x/text v0.37.0 // indirect
-	golang.org/x/tools v0.44.0 // indirect
-	google.golang.org/grpc v1.81.0 // indirect
+	golang.org/x/mod v0.33.0 // indirect
+	golang.org/x/sys v0.42.0
+	golang.org/x/text v0.35.0
+	golang.org/x/tools v0.42.0 // indirect
+	google.golang.org/grpc v1.79.3 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	howett.net/plist v1.0.0 // indirect
 )

go.sum

@@ -2,18 +2,18 @@ cel.dev/expr v0.25.1 h1:1KrZg61W6TWSxuNZ37Xy49ps13NUovb66QLprthtwi4=
 cel.dev/expr v0.25.1/go.mod h1:hrXvqGP6G6gyx8UAHSHJ5RGk//1Oj5nXQ2NI02Nrsg4=
 cloud.google.com/go v0.123.0 h1:2NAUJwPR47q+E35uaJeYoNhuNEM9kM8SjgRgdeOJUSE=
 cloud.google.com/go v0.123.0/go.mod h1:xBoMV08QcqUGuPW65Qfm1o9Y4zKZBpGS+7bImXLTAZU=
-cloud.google.com/go/auth v0.20.0 h1:kXTssoVb4azsVDoUiF8KvxAqrsQcQtB53DcSgta74CA=
-cloud.google.com/go/auth v0.20.0/go.mod h1:942/yi/itH1SsmpyrbnTMDgGfdy2BUqIKyd0cyYLc5Q=
+cloud.google.com/go/auth v0.18.2 h1:+Nbt5Ev0xEqxlNjd6c+yYUeosQ5TtEUaNcN/3FozlaM=
+cloud.google.com/go/auth v0.18.2/go.mod h1:xD+oY7gcahcu7G2SG2DsBerfFxgPAJz17zz2joOFF3M=
 cloud.google.com/go/auth/oauth2adapt v0.2.8 h1:keo8NaayQZ6wimpNSmW5OPc283g65QNIiLpZnkHRbnc=
 cloud.google.com/go/auth/oauth2adapt v0.2.8/go.mod h1:XQ9y31RkqZCcwJWNSx2Xvric3RrU88hAYYbjDWYDL+c=
 cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdBtwLoEkH9Zs=
 cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
-cloud.google.com/go/iam v1.7.0 h1:JD3zh0C6LHl16aCn5Akff0+GELdp1+4hmh6ndoFLl8U=
-cloud.google.com/go/iam v1.7.0/go.mod h1:tetWZW1PD/m6vcuY2Zj/aU0eCHNPuxedbnbRTyKXvdY=
-cloud.google.com/go/kms v1.31.0 h1:LS8N92OxFDgOLg5NCo3OmbvjtQAIVT5gUHVLKIDHaFE=
-cloud.google.com/go/kms v1.31.0/go.mod h1:YIyXZym11R5uovJJt4oN5eUL3oPmirF3yKeIh6QAf4U=
-cloud.google.com/go/longrunning v0.9.0 h1:0EzbDEGsAvOZNbqXopgniY0w0a1phvu5IdUFq8grmqY=
-cloud.google.com/go/longrunning v0.9.0/go.mod h1:pkTz846W7bF4o2SzdWJ40Hu0Re+UoNT6Q5t+igIcb8E=
+cloud.google.com/go/iam v1.5.3 h1:+vMINPiDF2ognBJ97ABAYYwRgsaqxPbQDlMnbHMjolc=
+cloud.google.com/go/iam v1.5.3/go.mod h1:MR3v9oLkZCTlaqljW6Eb2d3HGDGK5/bDv93jhfISFvU=
+cloud.google.com/go/kms v1.26.0 h1:cK9mN2cf+9V63D3H1f6koxTatWy39aTI/hCjz1I+adU=
+cloud.google.com/go/kms v1.26.0/go.mod h1:pHKOdFJm63hxBsiPkYtowZPltu9dW0MWvBa6IA4HM58=
+cloud.google.com/go/longrunning v0.8.0 h1:LiKK77J3bx5gDLi4SMViHixjD2ohlkwBi+mKA7EhfW8=
+cloud.google.com/go/longrunning v0.8.0/go.mod h1:UmErU2Onzi+fKDg2gR7dusz11Pe26aknR4kHmJJqIfk=
 code.pfad.fr/check v1.1.0 h1:GWvjdzhSEgHvEHe2uJujDcpmZoySKuHQNrZMfzfO0bE=
 code.pfad.fr/check v1.1.0/go.mod h1:NiUH13DtYsb7xp5wll0U4SXx7KhXQVCtRgdC96IPfoM=
 dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
@@ -28,8 +28,8 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
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@@ -43,8 +43,8 @@ github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAE
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@@ -53,40 +53,40 @@ github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmO
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@@ -179,18 +179,18 @@ github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
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 github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 h1:HWRh5R2+9EifMyIHV7ZV+MIZqgz+PMpZ14Jynv3O2Zs=
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 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
@@ -205,14 +205,14 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
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 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw=
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 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
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 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -259,8 +259,8 @@ github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58/go.mod h1:DXv8WO4yhM
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/peterbourgon/diskv/v3 v3.0.1 h1:x06SQA46+PKIUftmEujdwSEpIx8kR+M9eLYsUxeYveU=
 github.com/peterbourgon/diskv/v3 v3.0.1/go.mod h1:kJ5Ny7vLdARGU3WUuy6uzO6T0nb/2gWcT1JiBvRmb5o=
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-github.com/pires/go-proxyproto v0.12.0/go.mod h1:qUvfqUMEoX7T8g0q7TQLDnhMjdTrxnG0hvpMn+7ePNI=
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 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
@@ -280,8 +280,8 @@ github.com/prometheus/procfs v0.20.1 h1:XwbrGOIplXW/AU3YhIhLODXMJYyC1isLFfYCsTEy
 github.com/prometheus/procfs v0.20.1/go.mod h1:o9EMBZGRyvDrSPH1RqdxhojkuXstoe4UlK79eF5TGGo=
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@@ -373,66 +373,66 @@ go.etcd.io/bbolt v1.4.3 h1:dEadXpI6G79deX5prL3QRNP6JB8UxVkqo4UPnHaNXJo=
 go.etcd.io/bbolt v1.4.3/go.mod h1:tKQlpPaYCVFctUIgFKFnAlvbmB3tpy1vkTnDWohtc0E=
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-go.opentelemetry.io/contrib/bridges/prometheus v0.68.0 h1:w3zlHYETbDwXyWHZlyyR58ZC39XGi8rAhkBgUgJ9d5w=
-go.opentelemetry.io/contrib/bridges/prometheus v0.68.0/go.mod h1:GR/mClR2nn7vE8RLwxKjoBNg+QtgdDhRzxVa93koy5o=
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-go.opentelemetry.io/contrib/exporters/autoexport v0.68.0/go.mod h1:DM2NV7Zb8CcGeVPt6glouY0FAiwZQ/iqgcWExhgWeN8=
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+go.opentelemetry.io/proto/otlp v1.9.0 h1:l706jCMITVouPOqEnii2fIAuO3IVGBRPV5ICjceRb/A=
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+go.step.sm/crypto v0.77.1 h1:4EEqfKdv0egQ1lqz2RhnU8Jv6QgXZfrgoxWMqJF9aDs=
+go.step.sm/crypto v0.77.1/go.mod h1:U/SsmEm80mNnfD5WIkbhuW/B1eFp3fgFvdXyDLpU1AQ=
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 go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
@@ -441,12 +441,12 @@ go.uber.org/mock v0.6.0 h1:hyF9dfmbgIX5EfOdasqLsWD6xqpNZlXblLB/Dbnwv3Y=
 go.uber.org/mock v0.6.0/go.mod h1:KiVJ4BqZJaMj4svdfmHM0AUx4NJYO8ZNpPnZn1Z+BBU=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
-go.uber.org/zap v1.28.0 h1:IZzaP1Fv73/T/pBMLk4VutPl36uNC+OSUh3JLG3FIjo=
-go.uber.org/zap v1.28.0/go.mod h1:rDLpOi171uODNm/mxFcuYWxDsqWSAVkFdX4XojSKg/Q=
+go.uber.org/zap v1.27.1 h1:08RqriUEv8+ArZRYSTXy1LeBScaMpVSTBhCeaZYfMYc=
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 go.uber.org/zap/exp v0.3.0 h1:6JYzdifzYkGmTdRR59oYH+Ng7k49H9qVpWwNSsGJj3U=
 go.uber.org/zap/exp v0.3.0/go.mod h1:5I384qq7XGxYyByIhHm6jg5CHkGY0nsTfbDLgDDlgJQ=
-go.yaml.in/yaml/v2 v2.4.4 h1:tuyd0P+2Ont/d6e2rl3be67goVK4R6deVxCUX5vyPaQ=
-go.yaml.in/yaml/v2 v2.4.4/go.mod h1:gMZqIpDtDqOfM0uNfy0SkpRhvUryYH0Z6wdMYcacYXQ=
+go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
+go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
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 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -456,10 +456,10 @@ golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliY
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
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 golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
-golang.org/x/crypto v0.52.0 h1:RMs7fP2rXdep0CftQlK8Uf+kibLm7qkCcradZWYz988=
-golang.org/x/crypto v0.52.0/go.mod h1:1QgfPxDqh0T2M/elOJtp9RvuR95kVjir0e6/BvEmGbc=
-golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541 h1:FmKxj9ocLKn45jiR2jQMwCVhDvaK7fKQFzfuT9GvyK8=
-golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541/go.mod h1:+UoQFNBq2p2wO+Q6ddVtYc25GZ6VNdOMyyrd4nrqrKs=
+golang.org/x/crypto v0.49.0 h1:+Ng2ULVvLHnJ/ZFEq4KdcDd/cfjrrjjNSXNzxg0Y4U4=
+golang.org/x/crypto v0.49.0/go.mod h1:ErX4dUh2UM+CFYiXZRTcMpEcN8b/1gxEuv3nODoYtCA=
+golang.org/x/crypto/x509roots/fallback v0.0.0-20260323153451-8400f4a93807 h1:sQVhWLXbNsa8CTzHOX3IHc7C4Q2JyxI5AweuMQZ/5H0=
+golang.org/x/crypto/x509roots/fallback v0.0.0-20260323153451-8400f4a93807/go.mod h1:+UoQFNBq2p2wO+Q6ddVtYc25GZ6VNdOMyyrd4nrqrKs=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
@@ -467,8 +467,8 @@ golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/mod v0.35.0 h1:Ww1D637e6Pg+Zb2KrWfHQUnH2dQRLBQyAtpr/haaJeM=
-golang.org/x/mod v0.35.0/go.mod h1:+GwiRhIInF8wPm+4AoT6L0FA1QWAad3OMdTRx4tFYlU=
+golang.org/x/mod v0.33.0 h1:tHFzIWbBifEmbwtGz65eaWyGiGZatSrT9prnU8DbVL8=
+golang.org/x/mod v0.33.0/go.mod h1:swjeQEj+6r7fODbD2cqrnje9PnziFuw4bmLbBZFrQ5w=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
@@ -477,8 +477,8 @@ golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
-golang.org/x/net v0.55.0 h1:bcvxaJn3e1U6InsFWt1JUq1aSjnRxLzT2rtD2KfkDF8=
-golang.org/x/net v0.55.0/go.mod h1:L5U2KuzuOe1lY7Z+aWVIKK6qEeJXnXV9yzGA+WCHJww=
+golang.org/x/net v0.52.0 h1:He/TN1l0e4mmR3QqHMT2Xab3Aj3L9qjbhRm78/6jrW0=
+golang.org/x/net v0.52.0/go.mod h1:R1MAz7uMZxVMualyPXb+VaqGSa3LIaUqk0eEt3w36Sw=
 golang.org/x/oauth2 v0.36.0 h1:peZ/1z27fi9hUOFCAZaHyrpWG5lwe0RJEEEeH0ThlIs=
 golang.org/x/oauth2 v0.36.0/go.mod h1:YDBUJMTkDnJS+A4BP4eZBjCqtokkg1hODuPjwiGPO7Q=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -506,8 +506,8 @@ golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
-golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
+golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
@@ -517,8 +517,8 @@ golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
 golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
 golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
-golang.org/x/term v0.43.0 h1:S4RLU2sB31O/NCl+zFN9Aru9A/Cq2aqKpTZJ6B+DwT4=
-golang.org/x/term v0.43.0/go.mod h1:lrhlHNdQJHO+1qVYiHfFKVuVioJIheAc3fBSMFYEIsk=
+golang.org/x/term v0.41.0 h1:QCgPso/Q3RTJx2Th4bDLqML4W6iJiaXFq2/ftQF13YU=
+golang.org/x/term v0.41.0/go.mod h1:3pfBgksrReYfZ5lvYM0kSO0LIkAl4Yl2bXOkKP7Ec2A=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
@@ -528,8 +528,8 @@ golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
-golang.org/x/text v0.37.0 h1:Cqjiwd9eSg8e0QAkyCaQTNHFIIzWtidPahFWR83rTrc=
-golang.org/x/text v0.37.0/go.mod h1:a5sjxXGs9hsn/AJVwuElvCAo9v8QYLzvavO5z2PiM38=
+golang.org/x/text v0.35.0 h1:JOVx6vVDFokkpaq1AEptVzLTpDe9KGpj5tR4/X+ybL8=
+golang.org/x/text v0.35.0/go.mod h1:khi/HExzZJ2pGnjenulevKNX1W67CUy0AsXcNubPGCA=
 golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U=
 golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -538,21 +538,21 @@ golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
-golang.org/x/tools v0.44.0 h1:UP4ajHPIcuMjT1GqzDWRlalUEoY+uzoZKnhOjbIPD2c=
-golang.org/x/tools v0.44.0/go.mod h1:KA0AfVErSdxRZIsOVipbv3rQhVXTnlU6UhKxHd1seDI=
+golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k=
+golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
-gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
-google.golang.org/api v0.277.0 h1:HJfyJUiNeBBUMai7ez8u14wkp/gH/I4wpGbbO9o+cSk=
-google.golang.org/api v0.277.0/go.mod h1:B9TqLBwJqVjp1mtt7WeoQwWRwvu/400y5lETOql+giQ=
-google.golang.org/genproto v0.0.0-20260319201613-d00831a3d3e7 h1:XzmzkmB14QhVhgnawEVsOn6OFsnpyxNPRY9QV01dNB0=
-google.golang.org/genproto v0.0.0-20260319201613-d00831a3d3e7/go.mod h1:L43LFes82YgSonw6iTXTxXUX1OlULt4AQtkik4ULL/I=
-google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d h1:/aDRtSZJjyLQzm75d+a1wOJaqyKBMvIAfeQmoa3ORiI=
-google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d/go.mod h1:etfGUgejTiadZAUaEP14NP97xi1RGeawqkjDARA/UOs=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4 h1:tEkOQcXgF6dH1G+MVKZrfpYvozGrzb91k6ha7jireSM=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/grpc v1.81.0 h1:W3G9N3KQf3BU+YuCtGKJk0CmxQNbAISICD/9AORxLIw=
-google.golang.org/grpc v1.81.0/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
+gonum.org/v1/gonum v0.16.0 h1:5+ul4Swaf3ESvrOnidPp4GZbzf0mxVQpDCYUQE7OJfk=
+gonum.org/v1/gonum v0.16.0/go.mod h1:fef3am4MQ93R2HHpKnLk4/Tbh/s0+wqD5nfa6Pnwy4E=
+google.golang.org/api v0.271.0 h1:cIPN4qcUc61jlh7oXu6pwOQqbJW2GqYh5PS6rB2C/JY=
+google.golang.org/api v0.271.0/go.mod h1:CGT29bhwkbF+i11qkRUJb2KMKqcJ1hdFceEIRd9u64Q=
+google.golang.org/genproto v0.0.0-20260217215200-42d3e9bedb6d h1:vsOm753cOAMkt76efriTCDKjpCbK18XGHMJHo0JUKhc=
+google.golang.org/genproto v0.0.0-20260217215200-42d3e9bedb6d/go.mod h1:0oz9d7g9QLSdv9/lgbIjowW1JoxMbxmBVNe8i6tORJI=
+google.golang.org/genproto/googleapis/api v0.0.0-20260226221140-a57be14db171 h1:tu/dtnW1o3wfaxCOjSLn5IRX4YDcJrtlpzYkhHhGaC4=
+google.golang.org/genproto/googleapis/api v0.0.0-20260226221140-a57be14db171/go.mod h1:M5krXqk4GhBKvB596udGL3UyjL4I1+cTbK0orROM9ng=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171 h1:ggcbiqK8WWh6l1dnltU4BgWGIGo+EVYxCaAPih/zQXQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
+google.golang.org/grpc v1.79.3 h1:sybAEdRIEtvcD68Gx7dmnwjZKlyfuc61Dyo9pGXXkKE=
+google.golang.org/grpc v1.79.3/go.mod h1:KmT0Kjez+0dde/v2j9vzwoAScgEPx/Bw1CYChhHLrHQ=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 h1:F29+wU6Ee6qgu9TddPgooOdaqsxTMunOoj8KA5yuS5A=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1/go.mod h1:5KF+wpkbTSbGcR9zteSqZV6fqFOWBl4Yde8En8MryZA=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=

internal/logmarshalers.go

@@ -1,54 +0,0 @@
-package internal
-
-import (
-	"net/http"
-	"strings"
-
-	"go.uber.org/zap/zapcore"
-)
-
-// LoggableHTTPHeader makes an HTTP header loggable with zap.Object().
-// Headers with potentially sensitive information (Cookie, Set-Cookie,
-// Authorization, and Proxy-Authorization) are logged with empty values.
-type LoggableHTTPHeader struct {
-	http.Header
-
-	ShouldLogCredentials bool
-}
-
-// MarshalLogObject satisfies the zapcore.ObjectMarshaler interface.
-func (h LoggableHTTPHeader) MarshalLogObject(enc zapcore.ObjectEncoder) error {
-	if h.Header == nil {
-		return nil
-	}
-	for key, val := range h.Header {
-		if !h.ShouldLogCredentials {
-			switch strings.ToLower(key) {
-			case "cookie", "set-cookie", "authorization", "proxy-authorization":
-				val = []string{"REDACTED"} // see #5669. I still think ▒▒▒▒ would be cool.
-			}
-		}
-		enc.AddArray(key, LoggableStringArray(val))
-	}
-	return nil
-}
-
-// LoggableStringArray makes a slice of strings marshalable for logging.
-type LoggableStringArray []string
-
-// MarshalLogArray satisfies the zapcore.ArrayMarshaler interface.
-func (sa LoggableStringArray) MarshalLogArray(enc zapcore.ArrayEncoder) error {
-	if sa == nil {
-		return nil
-	}
-	for _, s := range sa {
-		enc.AppendString(s)
-	}
-	return nil
-}
-
-// Interface guards
-var (
-	_ zapcore.ObjectMarshaler = (*LoggableHTTPHeader)(nil)
-	_ zapcore.ArrayMarshaler  = (*LoggableStringArray)(nil)
-)

listen.go

@@ -30,6 +30,10 @@ import (
 	"go.uber.org/zap"
 )
 
+func reuseUnixSocket(_, _ string) (any, error) {
+	return nil, nil
+}
+
 func listenReusable(ctx context.Context, lnKey string, network, address string, config net.ListenConfig) (any, error) {
 	var socketFile *os.File
 
@@ -116,8 +120,8 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 // re-wrapped in a new fakeCloseListener each time the listener
 // is reused. This type is atomic and values must not be copied.
 type fakeCloseListener struct {
-	closed          atomic.Bool
-	*sharedListener // embedded, so we also become a net.Listener
+	closed          int32 // accessed atomically; belongs to this struct only
+	*sharedListener       // embedded, so we also become a net.Listener
 	keepAliveConfig net.KeepAliveConfig
 }
 
@@ -127,7 +131,7 @@ type canSetKeepAliveConfig interface {
 
 func (fcl *fakeCloseListener) Accept() (net.Conn, error) {
 	// if the listener is already "closed", return error
-	if fcl.closed.Load() {
+	if atomic.LoadInt32(&fcl.closed) == 1 {
 		return nil, fakeClosedErr(fcl)
 	}
 
@@ -151,7 +155,7 @@ func (fcl *fakeCloseListener) Accept() (net.Conn, error) {
 	// that we set when Close() was called, and return a non-temporary and
 	// non-timeout error value to the caller, masking the "true" error, so
 	// that server loops / goroutines won't retry, linger, and leak
-	if fcl.closed.Load() {
+	if atomic.LoadInt32(&fcl.closed) == 1 {
 		// we dereference the sharedListener explicitly even though it's embedded
 		// so that it's clear in the code that side-effects are shared with other
 		// users of this listener, not just our own reference to it; we also don't
@@ -171,7 +175,7 @@ func (fcl *fakeCloseListener) Accept() (net.Conn, error) {
 // underlying listener. The underlying listener is only closed
 // if the caller is the last known user of the socket.
 func (fcl *fakeCloseListener) Close() error {
-	if fcl.closed.CompareAndSwap(false, true) {
+	if atomic.CompareAndSwapInt32(&fcl.closed, 0, 1) {
 		// There are two ways I know of to get an Accept()
 		// function to return to the server loop that called
 		// it: close the listener, or set a deadline in the
@@ -234,13 +238,13 @@ func (sl *sharedListener) Destruct() error {
 // fakeClosePacketConn is like fakeCloseListener, but for PacketConns,
 // or more specifically, *net.UDPConn
 type fakeClosePacketConn struct {
-	closed            atomic.Bool
-	*sharedPacketConn // embedded, so we also become a net.PacketConn; its key is used in Close
+	closed            int32 // accessed atomically; belongs to this struct only
+	*sharedPacketConn       // embedded, so we also become a net.PacketConn; its key is used in Close
 }
 
 func (fcpc *fakeClosePacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
 	// if the listener is already "closed", return error
-	if fcpc.closed.Load() {
+	if atomic.LoadInt32(&fcpc.closed) == 1 {
 		return 0, nil, &net.OpError{
 			Op:   "readfrom",
 			Net:  fcpc.LocalAddr().Network(),
@@ -254,7 +258,7 @@ func (fcpc *fakeClosePacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err e
 	if err != nil {
 		// this server was stopped, so clear the deadline and let
 		// any new server continue reading; but we will exit
-		if fcpc.closed.Load() {
+		if atomic.LoadInt32(&fcpc.closed) == 1 {
 			if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
 				if err = fcpc.SetReadDeadline(time.Time{}); err != nil {
 					return n, addr, err
@@ -269,7 +273,7 @@ func (fcpc *fakeClosePacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err e
 
 // Close won't close the underlying socket unless there is no more reference, then listenerPool will close it.
 func (fcpc *fakeClosePacketConn) Close() error {
-	if fcpc.closed.CompareAndSwap(false, true) {
+	if atomic.CompareAndSwapInt32(&fcpc.closed, 0, 1) {
 		_ = fcpc.SetReadDeadline(time.Now()) // unblock ReadFrom() calls to kick old servers out of their loops
 		_, _ = listenerPool.Delete(fcpc.sharedPacketConn.key)
 	}

listen_reuseUnixSocket.go

@@ -1,21 +0,0 @@
-// Copyright 2015 Matthew Holt and The Caddy Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build (!unix || solaris) && !windows
-
-package caddy
-
-func reuseUnixSocket(_, _ string) (any, error) {
-	return nil, nil
-}

listen_reuseUnixSocket_windows.go

@@ -1,89 +0,0 @@
-// Copyright 2015 Matthew Holt and The Caddy Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build windows
-
-package caddy
-
-import (
-	"errors"
-	"fmt"
-	"io/fs"
-	"net"
-	"os"
-	"strings"
-	"syscall"
-	"time"
-)
-
-var errUnixSocketAlreadyInUse = errors.New("unix socket is already in use by another process")
-
-func reuseUnixSocket(network, addr string) (any, error) {
-	if !IsUnixNetwork(network) {
-		return nil, nil
-	}
-
-	// Note: This is here mainly for proper compatibility, because Unix sockets with abstract names are in an interesting limbo state on Windows:
-	// Go already translates `@` characters to `\0` for Windows: https://github.com/golang/go/blob/65d5c5f6dd8aa7b221cff6ec3f5101ea2e5f3efa/src/syscall/syscall_windows.go#L910
-	// ...but there still is an open issue about the fact that this is not properly supported: https://github.com/microsoft/WSL/issues/4240#issuecomment-620805115
-	// The main issue is that the original announcement proclaimed support for this feature, but it was (apparently) never implemented: https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/
-	isAbstractUnixSocket := strings.HasPrefix(addr, "@")
-
-	if isAbstractUnixSocket {
-		// Abstract Unix sockets do not require us to remove stale socket files.
-		return nil, nil
-	}
-
-	// On Windows, we're using the `fakeCloseListener` wrappers around a single, ever-living listener.
-	// So, if there's an active listener entry in the pool, we're the current owner of the Unix socket file.
-	_, socketBelongsToCurrentProcess := listenerPool.References(listenerKey(network, addr))
-
-	if socketBelongsToCurrentProcess {
-		// Reuse/cleanup is entirely handled by the refcounting mechanism in `listenerPool`.
-		return nil, nil
-	}
-
-	// If the socket file does not exist or has no backing server process, this will fail instantly.
-	connection, err := net.DialTimeout("unix", addr, 10*time.Millisecond)
-
-	if err == nil {
-		connection.Close()
-		return nil, fmt.Errorf("cannot reuse socket %v: %w", addr, errUnixSocketAlreadyInUse)
-	}
-
-	// Windows returns this error code both if the socket file does not exist and if it isn't backed by a server process anymore.
-	// See: https://learn.microsoft.com/en-us/windows/win32/winsock/windows-sockets-error-codes-2#wsaeconnrefused
-	const WSAECONNREFUSED syscall.Errno = 10061
-
-	var errno syscall.Errno
-	hasNoListeningServerProcess := errors.As(err, &errno) && errno == WSAECONNREFUSED
-
-	if !hasNoListeningServerProcess {
-		return nil, fmt.Errorf("cannot reuse socket %v: %w", addr, errUnixSocketAlreadyInUse)
-	}
-
-	// If the socket file exists, it hasn't been created by our process, and it seemingly
-	// isn't backed by a server process anymore. Try to delete it so we can bind to it later.
-	err = os.Remove(addr)
-
-	if err == nil {
-		return nil, nil
-	} else if errors.Is(err, fs.ErrNotExist) {
-		// Either the file didn't exist in the first place, or it was deleted before we were able to.
-		return nil, nil
-	} else {
-		// We failed to delete the file. Likely, it belongs to another (active) process.
-		return nil, err
-	}
-}

listen_unix.go

@@ -63,7 +63,7 @@ func reuseUnixSocket(network, addr string) (any, error) {
 			if err != nil {
 				return nil, err
 			}
-			unixSocket.count.Add(1)
+			atomic.AddInt32(unixSocket.count, 1)
 			unixSockets[socketKey] = &unixListener{ln.(*net.UnixListener), socketKey, unixSocket.count}
 
 		case *unixConn:
@@ -71,7 +71,7 @@ func reuseUnixSocket(network, addr string) (any, error) {
 			if err != nil {
 				return nil, err
 			}
-			unixSocket.count.Add(1)
+			atomic.AddInt32(unixSocket.count, 1)
 			unixSockets[socketKey] = &unixConn{pc.(*net.UnixConn), socketKey, unixSocket.count}
 		}
 
@@ -165,9 +165,8 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 		if !fd {
 			// TODO: Not 100% sure this is necessary, but we do this for net.UnixListener, so...
 			if unix, ok := ln.(*net.UnixConn); ok {
-				cnt := new(atomic.Int32)
-				cnt.Store(1)
-				ln = &unixConn{unix, lnKey, cnt}
+				one := int32(1)
+				ln = &unixConn{unix, lnKey, &one}
 				unixSockets[lnKey] = ln.(*unixConn)
 			}
 		}
@@ -182,9 +181,8 @@ func listenReusable(ctx context.Context, lnKey string, network, address string,
 			// (we do our own "unlink on close" -- not required, but more tidy)
 			if unix, ok := ln.(*net.UnixListener); ok {
 				unix.SetUnlinkOnClose(false)
-				cnt := new(atomic.Int32)
-				cnt.Store(1)
-				ln = &unixListener{unix, lnKey, cnt}
+				one := int32(1)
+				ln = &unixListener{unix, lnKey, &one}
 				unixSockets[lnKey] = ln.(*unixListener)
 			}
 		}
@@ -218,11 +216,11 @@ func reusePort(network, address string, conn syscall.RawConn) error {
 type unixListener struct {
 	*net.UnixListener
 	mapKey string
-	count  *atomic.Int32
+	count  *int32 // accessed atomically
 }
 
 func (uln *unixListener) Close() error {
-	newCount := uln.count.Add(-1)
+	newCount := atomic.AddInt32(uln.count, -1)
 	if newCount == 0 {
 		file, err := uln.File()
 		var name string
@@ -244,11 +242,11 @@ func (uln *unixListener) Close() error {
 type unixConn struct {
 	*net.UnixConn
 	mapKey string
-	count  *atomic.Int32
+	count  *int32 // accessed atomically
 }
 
 func (uc *unixConn) Close() error {
-	newCount := uc.count.Add(-1)
+	newCount := atomic.AddInt32(uc.count, -1)
 	if newCount == 0 {
 		file, err := uc.File()
 		var name string

listeners.go

@@ -462,10 +462,7 @@ func (na NetworkAddress) ListenQUIC(ctx context.Context, portOffset uint, config
 		sqs := newSharedQUICState(tlsConf)
 		// http3.ConfigureTLSConfig only uses this field and tls App sets this field as well
 		//nolint:gosec
-		quicTlsConfig := &tls.Config{
-			GetConfigForClient:          sqs.getConfigForClient,
-			GetEncryptedClientHelloKeys: sqs.getEncryptedClientHelloKeys,
-		}
+		quicTlsConfig := &tls.Config{GetConfigForClient: sqs.getConfigForClient}
 		// Require clients to verify their source address when we're handling more than 1000 handshakes per second.
 		// TODO: make tunable?
 		limiter := rate.NewLimiter(1000, 1000)
@@ -543,16 +540,6 @@ func (sqs *sharedQUICState) getConfigForClient(ch *tls.ClientHelloInfo) (*tls.Co
 	return sqs.activeTlsConf.GetConfigForClient(ch)
 }
 
-// getEncryptedClientHelloKeys is used as tls.Config's GetEncryptedClientHelloKeys field.
-func (sqs *sharedQUICState) getEncryptedClientHelloKeys(ch *tls.ClientHelloInfo) ([]tls.EncryptedClientHelloKey, error) {
-	sqs.rmu.RLock()
-	defer sqs.rmu.RUnlock()
-	if sqs.activeTlsConf.GetEncryptedClientHelloKeys == nil {
-		return nil, nil
-	}
-	return sqs.activeTlsConf.GetEncryptedClientHelloKeys(ch)
-}
-
 // addState adds tls.Config and activeRequests to the map if not present and returns the corresponding context and its cancelFunc
 // so that when cancelled, the active tls.Config will change
 func (sqs *sharedQUICState) addState(tlsConfig *tls.Config) (context.Context, context.CancelCauseFunc) {
@@ -624,8 +611,8 @@ func fakeClosedErr(l interface{ Addr() net.Addr }) error {
 var errFakeClosed = fmt.Errorf("QUIC listener 'closed' 😉")
 
 type fakeCloseQuicListener struct {
-	closed              atomic.Int32
-	*sharedQuicListener // embedded, so we also become a quic.EarlyListener
+	closed              int32 // accessed atomically; belongs to this struct only
+	*sharedQuicListener       // embedded, so we also become a quic.EarlyListener
 	context             context.Context
 	contextCancel       context.CancelCauseFunc
 }
@@ -642,16 +629,16 @@ func (fcql *fakeCloseQuicListener) Accept(_ context.Context) (*quic.Conn, error)
 	}
 
 	// if the listener is "closed", return a fake closed error instead
-	if fcql.closed.Load() == 1 && errors.Is(err, context.Canceled) {
+	if atomic.LoadInt32(&fcql.closed) == 1 && errors.Is(err, context.Canceled) {
 		return nil, fakeClosedErr(fcql)
 	}
 	return nil, err
 }
 
 func (fcql *fakeCloseQuicListener) Close() error {
-	if fcql.closed.CompareAndSwap(0, 1) {
+	if atomic.CompareAndSwapInt32(&fcql.closed, 0, 1) {
 		fcql.contextCancel(errFakeClosed)
-	} else if fcql.closed.CompareAndSwap(1, 2) {
+	} else if atomic.CompareAndSwapInt32(&fcql.closed, 1, 2) {
 		_, _ = listenerPool.Delete(fcql.sharedQuicListener.key)
 	}
 	return nil

listeners_test.go

@@ -15,7 +15,6 @@
 package caddy
 
 import (
-	"crypto/tls"
 	"reflect"
 	"testing"
 
@@ -176,63 +175,6 @@ func TestJoinNetworkAddress(t *testing.T) {
 	}
 }
 
-func TestSharedQUICStateGetEncryptedClientHelloKeys(t *testing.T) {
-	hello := &tls.ClientHelloInfo{ServerName: "example.com"}
-	initialKeys := []tls.EncryptedClientHelloKey{{Config: []byte("initial"), PrivateKey: []byte("initial-key")}}
-	updatedKeys := []tls.EncryptedClientHelloKey{{Config: []byte("updated"), PrivateKey: []byte("updated-key")}}
-
-	initialConfig := &tls.Config{
-		GetConfigForClient: func(*tls.ClientHelloInfo) (*tls.Config, error) {
-			return nil, nil
-		},
-		GetEncryptedClientHelloKeys: func(*tls.ClientHelloInfo) ([]tls.EncryptedClientHelloKey, error) {
-			return initialKeys, nil
-		},
-	}
-
-	sqs := newSharedQUICState(initialConfig)
-
-	keys, err := sqs.getEncryptedClientHelloKeys(hello)
-	if err != nil {
-		t.Fatalf("getting initial ECH keys: %v", err)
-	}
-	if !reflect.DeepEqual(keys, initialKeys) {
-		t.Fatalf("unexpected initial ECH keys: got %#v, want %#v", keys, initialKeys)
-	}
-
-	updatedConfig := &tls.Config{
-		GetConfigForClient: func(*tls.ClientHelloInfo) (*tls.Config, error) {
-			return nil, nil
-		},
-		GetEncryptedClientHelloKeys: func(*tls.ClientHelloInfo) ([]tls.EncryptedClientHelloKey, error) {
-			return updatedKeys, nil
-		},
-	}
-
-	_, cancel := sqs.addState(updatedConfig)
-	sqs.rmu.Lock()
-	sqs.activeTlsConf = updatedConfig
-	sqs.rmu.Unlock()
-
-	keys, err = sqs.getEncryptedClientHelloKeys(hello)
-	if err != nil {
-		t.Fatalf("getting updated ECH keys: %v", err)
-	}
-	if !reflect.DeepEqual(keys, updatedKeys) {
-		t.Fatalf("unexpected updated ECH keys: got %#v, want %#v", keys, updatedKeys)
-	}
-
-	cancel(nil)
-
-	keys, err = sqs.getEncryptedClientHelloKeys(hello)
-	if err != nil {
-		t.Fatalf("getting restored ECH keys: %v", err)
-	}
-	if !reflect.DeepEqual(keys, initialKeys) {
-		t.Fatalf("unexpected restored ECH keys: got %#v, want %#v", keys, initialKeys)
-	}
-}
-
 func TestParseNetworkAddress(t *testing.T) {
 	for i, tc := range []struct {
 		input          string

modules/caddyhttp/app.go

@@ -20,6 +20,7 @@ import (
 	"crypto/tls"
 	"errors"
 	"fmt"
+	"maps"
 	"net"
 	"net/http"
 	"strconv"
@@ -68,7 +69,6 @@ func init() {
 // `{http.request.orig_uri.path.dir}` | The request's original directory
 // `{http.request.orig_uri.path.file}` | The request's original filename
 // `{http.request.orig_uri.query}` | The request's original query string (without `?`)
-// `{http.request.orig_uri.prefixed_query}` | The request's original query string with a `?` prefix, if non-empty
 // `{http.request.port}` | The port part of the request's Host header
 // `{http.request.proto}` | The protocol of the request
 // `{http.request.local.host}` | The host (IP) part of the local address the connection arrived on
@@ -98,15 +98,11 @@ func init() {
 // `{http.request.tls.client.san.ips.*}` | SAN IP addresses (index optional)
 // `{http.request.tls.client.san.uris.*}` | SAN URIs (index optional)
 // `{http.request.uri}` | The full request URI
-// `{http.request.uri_escaped}` | The full request URI with query-style URL encoding applied (using url.QueryEscape)
 // `{http.request.uri.path}` | The path component of the request URI
-// `{http.request.uri.path_escaped}` | The path component of the request URI with query-style URL encoding applied (using url.QueryEscape)
 // `{http.request.uri.path.*}` | Parts of the path, split by `/` (0-based from left)
 // `{http.request.uri.path.dir}` | The directory, excluding leaf filename
 // `{http.request.uri.path.file}` | The filename of the path, excluding directory
 // `{http.request.uri.query}` | The query string (without `?`)
-// `{http.request.uri.query_escaped}` | The query string with query-style URL encoding applied (using url.QueryEscape)
-// `{http.request.uri.prefixed_query}` | The query string with a `?` prefix, if non-empty
 // `{http.request.uri.query.*}` | Individual query string value
 // `{http.response.header.*}` | Specific response header field
 // `{http.vars.*}` | Custom variables in the HTTP handler chain
@@ -207,9 +203,6 @@ func (app *App) Provision(ctx caddy.Context) error {
 		app.Metrics.httpMetrics = &httpMetrics{}
 		// Scan config for allowed hosts to prevent cardinality explosion
 		app.Metrics.scanConfigForHosts(app)
-		if err := app.Metrics.provisionOTLP(ctx); err != nil {
-			return err
-		}
 	}
 	// prepare each server
 	oldContext := ctx.Context
@@ -221,6 +214,8 @@ func (app *App) Provision(ctx caddy.Context) error {
 		srv.ctx = ctx
 		srv.logger = app.logger.Named("log")
 		srv.errorLogger = app.logger.Named("log.error")
+		srv.shutdownAtMu = new(sync.RWMutex)
+
 		if srv.Metrics != nil {
 			srv.logger.Warn("per-server 'metrics' is deprecated; use 'metrics' in the root 'http' app instead")
 			app.Metrics = cmp.Or(app.Metrics, &Metrics{
@@ -240,7 +235,12 @@ func (app *App) Provision(ctx caddy.Context) error {
 
 		// if no protocols configured explicitly, enable all except h2c
 		if len(srv.Protocols) == 0 {
-			srv.Protocols = srv.protocolsWithDefaults()
+			srv.Protocols = []string{"h1", "h2", "h3"}
+		}
+
+		srvProtocolsUnique := map[string]struct{}{}
+		for _, srvProtocol := range srv.Protocols {
+			srvProtocolsUnique[srvProtocol] = struct{}{}
 		}
 
 		if srv.ListenProtocols != nil {
@@ -251,7 +251,31 @@ func (app *App) Provision(ctx caddy.Context) error {
 
 			for i, lnProtocols := range srv.ListenProtocols {
 				if lnProtocols != nil {
-					srv.ListenProtocols[i] = srv.listenerProtocolsWithDefaults(lnProtocols)
+					// populate empty listen protocols with server protocols
+					lnProtocolsDefault := false
+					var lnProtocolsInclude []string
+					srvProtocolsInclude := maps.Clone(srvProtocolsUnique)
+
+					// keep existing listener protocols unless they are empty
+					for _, lnProtocol := range lnProtocols {
+						if lnProtocol == "" {
+							lnProtocolsDefault = true
+						} else {
+							lnProtocolsInclude = append(lnProtocolsInclude, lnProtocol)
+							delete(srvProtocolsInclude, lnProtocol)
+						}
+					}
+
+					// append server protocols to listener protocols if any listener protocols were empty
+					if lnProtocolsDefault {
+						for _, srvProtocol := range srv.Protocols {
+							if _, ok := srvProtocolsInclude[srvProtocol]; ok {
+								lnProtocolsInclude = append(lnProtocolsInclude, srvProtocol)
+							}
+						}
+					}
+
+					srv.ListenProtocols[i] = lnProtocolsInclude
 				}
 			}
 		}
@@ -665,7 +689,9 @@ func (app *App) Stop() error {
 				for _, addr := range na.Expand() {
 					if caddy.ListenerUsage(addr.Network, addr.JoinHostPort(0)) < 2 {
 						app.logger.Debug("listener closing and shutdown delay is configured", zap.String("address", addr.String()))
-						server.shutdownAt.Store(&scheduledTime)
+						server.shutdownAtMu.Lock()
+						server.shutdownAt = scheduledTime
+						server.shutdownAtMu.Unlock()
 						delay = true
 					} else {
 						app.logger.Debug("shutdown delay configured but listener will remain open", zap.String("address", addr.String()))
@@ -790,12 +816,6 @@ func (app *App) Stop() error {
 		}
 	}
 
-	// flush and shut down the OTLP metrics exporter (if configured) so any
-	// last data point reaches the collector before the process exits
-	if err := app.Metrics.shutdown(ctx); err != nil {
-		app.logger.Error("shutting down OTLP metrics", zap.Error(err))
-	}
-
 	app.stopped = true
 	return nil
 }

modules/caddyhttp/autohttps.go

@@ -173,7 +173,7 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 		for d := range serverDomainSet {
 			echDomains = append(echDomains, d)
 		}
-		app.tlsApp.RegisterServerNames(echDomains, httpsRRALPNs(srv))
+		app.tlsApp.RegisterServerNames(echDomains)
 
 		// nothing more to do here if there are no domains that qualify for
 		// automatic HTTPS and there are no explicit TLS connection policies:
@@ -258,13 +258,18 @@ func (app *App) automaticHTTPSPhase1(ctx caddy.Context, repl *caddy.Replacer) er
 			// an empty string to indicate a catch-all, which we have to
 			// treat special later
 			if len(serverDomainSet) == 0 {
-				app.recordAutoHTTPSRedirectAddress(redirDomains, "", addr)
+				redirDomains[""] = append(redirDomains[""], addr)
 				continue
 			}
 
 			// ...and associate it with each domain in this server
 			for d := range serverDomainSet {
-				app.recordAutoHTTPSRedirectAddress(redirDomains, d, addr)
+				// if this domain is used on more than one HTTPS-enabled
+				// port, we'll have to choose one, so prefer the HTTPS port
+				if _, ok := redirDomains[d]; !ok ||
+					addr.StartPort == uint(app.httpsPort()) {
+					redirDomains[d] = append(redirDomains[d], addr)
+				}
 			}
 		}
 	}
@@ -512,35 +517,6 @@ redirServersLoop:
 	return nil
 }
 
-// recordAutoHTTPSRedirectAddress stores redirect destinations for one domain
-// using a single winning port while keeping all bind addresses on that port.
-//
-// This is needed to avoid two opposite regressions in auto-HTTPS redirects:
-// preserve all listener addresses when a site binds multiple addresses on the
-// same HTTPS port, but do not mix in alternate HTTPS ports when the canonical
-// app HTTPS port is also available.
-func (app *App) recordAutoHTTPSRedirectAddress(redirDomains map[string][]caddy.NetworkAddress, domain string, addr caddy.NetworkAddress) {
-	existing := redirDomains[domain]
-	if len(existing) == 0 {
-		redirDomains[domain] = []caddy.NetworkAddress{addr}
-		return
-	}
-
-	existingPort := existing[0].StartPort
-	if addr.StartPort != existingPort {
-		if addr.StartPort == uint(app.httpsPort()) && existingPort != uint(app.httpsPort()) {
-			redirDomains[domain] = []caddy.NetworkAddress{addr}
-		}
-		return
-	}
-
-	if slices.Contains(existing, addr) {
-		return
-	}
-
-	redirDomains[domain] = append(existing, addr)
-}
-
 func (app *App) makeRedirRoute(redirToPort uint, matcherSet MatcherSet) Route {
 	redirTo := "https://{http.request.host}"
 
@@ -574,20 +550,6 @@ func (app *App) makeRedirRoute(redirToPort uint, matcherSet MatcherSet) Route {
 	}
 }
 
-func httpsRRALPNs(srv *Server) []string {
-	alpn := make(map[string]struct{}, 3)
-	if srv.protocol("h3") {
-		alpn["h3"] = struct{}{}
-	}
-	if srv.protocol("h2") {
-		alpn["h2"] = struct{}{}
-	}
-	if srv.protocol("h1") {
-		alpn["http/1.1"] = struct{}{}
-	}
-	return caddytls.OrderedHTTPSRRALPN(alpn)
-}
-
 // createAutomationPolicies ensures that automated certificates for this
 // app are managed properly. This adds up to two automation policies:
 // one for the public names, and one for the internal names. If a catch-all

modules/caddyhttp/autohttps_test.go

@@ -1,47 +0,0 @@
-package caddyhttp
-
-import (
-	"reflect"
-	"testing"
-)
-
-func TestHTTPSRRALPNsDefaultProtocols(t *testing.T) {
-	srv := &Server{}
-
-	got := httpsRRALPNs(srv)
-	want := []string{"h3", "h2", "http/1.1"}
-
-	if !reflect.DeepEqual(got, want) {
-		t.Fatalf("unexpected ALPN values: got %v want %v", got, want)
-	}
-}
-
-func TestHTTPSRRALPNsListenProtocolOverrides(t *testing.T) {
-	srv := &Server{
-		Protocols: []string{"h1", "h2"},
-		ListenProtocols: [][]string{
-			{"h1"},
-			nil,
-			{},
-			{"h3", ""},
-		},
-	}
-
-	got := httpsRRALPNs(srv)
-	want := []string{"h3", "h2", "http/1.1"}
-
-	if !reflect.DeepEqual(got, want) {
-		t.Fatalf("unexpected ALPN values: got %v want %v", got, want)
-	}
-}
-
-func TestHTTPSRRALPNsIgnoresH2COnly(t *testing.T) {
-	srv := &Server{
-		Protocols: []string{"h2c"},
-	}
-
-	got := httpsRRALPNs(srv)
-	if len(got) != 0 {
-		t.Fatalf("unexpected ALPN values: got %v want none", got)
-	}
-}

modules/caddyhttp/caddyauth/caddyauth.go

@@ -37,12 +37,6 @@ func init() {
 // `{http.auth.user.*}` placeholders may be set for any authentication
 // modules that provide user metadata.
 //
-// If authentication is rejected but a provider returns user information,
-// the placeholder `{http.auth.candidate.id}` will be set to the candidate
-// username, and also `{http.auth.candidate.*}` placeholders may be set
-// for candidate user metadata. Candidate placeholders do not represent a
-// successfully authenticated principal.
-//
 // In case of an error, the placeholder `{http.auth.<provider>.error}`
 // will be set to the error message returned by the authentication
 // provider.
@@ -84,8 +78,6 @@ func (a *Authentication) Provision(ctx caddy.Context) error {
 func (a Authentication) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
 	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 	var user User
-	var candidate User
-	var hasCandidate bool
 	var authed bool
 	var err error
 	for provName, prov := range a.Providers {
@@ -102,34 +94,19 @@ func (a Authentication) ServeHTTP(w http.ResponseWriter, r *http.Request, next c
 		if authed {
 			break
 		}
-		if userHasInfo(user) {
-			candidate = user
-			hasCandidate = true
-		}
 	}
 	if !authed {
-		if hasCandidate {
-			setAuthUserPlaceholders(repl, "http.auth.candidate", candidate)
-		}
 		return caddyhttp.Error(http.StatusUnauthorized, fmt.Errorf("not authenticated"))
 	}
 
-	setAuthUserPlaceholders(repl, "http.auth.user", user)
+	repl.Set("http.auth.user.id", user.ID)
+	for k, v := range user.Metadata {
+		repl.Set("http.auth.user."+k, v)
+	}
 
 	return next.ServeHTTP(w, r)
 }
 
-func userHasInfo(user User) bool {
-	return user.ID != "" || len(user.Metadata) > 0
-}
-
-func setAuthUserPlaceholders(repl *caddy.Replacer, namespace string, user User) {
-	repl.Set(namespace+".id", user.ID)
-	for k, v := range user.Metadata {
-		repl.Set(namespace+"."+k, v)
-	}
-}
-
 // Authenticator is a type which can authenticate a request.
 // If a request was not authenticated, it returns false. An
 // error is only returned if authenticating the request fails

modules/caddyhttp/caddyauth/caddyauth_test.go

@@ -1,197 +0,0 @@
-// Copyright 2015 Matthew Holt and The Caddy Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package caddyauth
-
-import (
-	"context"
-	"errors"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"go.uber.org/zap"
-
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
-)
-
-func TestAuthenticationRejectedUserSetsCandidatePlaceholders(t *testing.T) {
-	auth := Authentication{
-		Providers: map[string]Authenticator{
-			"test": staticAuthenticator{
-				user: User{
-					ID: "alice",
-					Metadata: map[string]string{
-						"role": "admin",
-					},
-				},
-			},
-		},
-		logger: zap.NewNop(),
-	}
-	req, repl := newRequestWithReplacer()
-	nextCalled := false
-
-	err := auth.ServeHTTP(httptest.NewRecorder(), req, caddyhttp.HandlerFunc(func(http.ResponseWriter, *http.Request) error {
-		nextCalled = true
-		return nil
-	}))
-	if err == nil {
-		t.Fatal("expected authentication error")
-	}
-	var handlerErr caddyhttp.HandlerError
-	if !errors.As(err, &handlerErr) {
-		t.Fatalf("expected HandlerError, got %T", err)
-	}
-	if handlerErr.StatusCode != http.StatusUnauthorized {
-		t.Fatalf("expected status %d, got %d", http.StatusUnauthorized, handlerErr.StatusCode)
-	}
-	if nextCalled {
-		t.Fatal("next handler was called for rejected authentication")
-	}
-
-	assertPlaceholder(t, repl, "http.auth.candidate.id", "alice")
-	assertPlaceholder(t, repl, "http.auth.candidate.role", "admin")
-	assertPlaceholderAbsent(t, repl, "http.auth.user.id")
-	assertPlaceholderAbsent(t, repl, "http.auth.user.role")
-}
-
-func TestAuthenticationSuccessfulUserSetsUserPlaceholdersOnly(t *testing.T) {
-	auth := Authentication{
-		Providers: map[string]Authenticator{
-			"test": staticAuthenticator{
-				user: User{
-					ID: "alice",
-					Metadata: map[string]string{
-						"role": "admin",
-					},
-				},
-				authed: true,
-			},
-		},
-		logger: zap.NewNop(),
-	}
-	req, repl := newRequestWithReplacer()
-	nextCalled := false
-
-	err := auth.ServeHTTP(httptest.NewRecorder(), req, caddyhttp.HandlerFunc(func(http.ResponseWriter, *http.Request) error {
-		nextCalled = true
-		return nil
-	}))
-	if err != nil {
-		t.Fatalf("expected no authentication error, got %v", err)
-	}
-	if !nextCalled {
-		t.Fatal("next handler was not called for successful authentication")
-	}
-
-	assertPlaceholder(t, repl, "http.auth.user.id", "alice")
-	assertPlaceholder(t, repl, "http.auth.user.role", "admin")
-	assertPlaceholderAbsent(t, repl, "http.auth.candidate.id")
-	assertPlaceholderAbsent(t, repl, "http.auth.candidate.role")
-}
-
-func TestAuthenticationSuccessfulProviderDoesNotExposeEarlierCandidate(t *testing.T) {
-	auth := Authentication{
-		Providers: map[string]Authenticator{
-			"first": staticAuthenticator{
-				user: User{
-					ID: "rejected",
-					Metadata: map[string]string{
-						"role": "guest",
-					},
-				},
-			},
-			"second": staticAuthenticator{
-				user: User{
-					ID: "accepted",
-					Metadata: map[string]string{
-						"role": "admin",
-					},
-				},
-				authed: true,
-			},
-		},
-		logger: zap.NewNop(),
-	}
-	req, repl := newRequestWithReplacer()
-
-	err := auth.ServeHTTP(httptest.NewRecorder(), req, caddyhttp.HandlerFunc(func(http.ResponseWriter, *http.Request) error {
-		return nil
-	}))
-	if err != nil {
-		t.Fatalf("expected no authentication error, got %v", err)
-	}
-
-	assertPlaceholder(t, repl, "http.auth.user.id", "accepted")
-	assertPlaceholder(t, repl, "http.auth.user.role", "admin")
-	assertPlaceholderAbsent(t, repl, "http.auth.candidate.id")
-	assertPlaceholderAbsent(t, repl, "http.auth.candidate.role")
-}
-
-func TestAuthenticationRejectedEmptyUserDoesNotSetCandidatePlaceholders(t *testing.T) {
-	auth := Authentication{
-		Providers: map[string]Authenticator{
-			"test": staticAuthenticator{},
-		},
-		logger: zap.NewNop(),
-	}
-	req, repl := newRequestWithReplacer()
-
-	err := auth.ServeHTTP(httptest.NewRecorder(), req, caddyhttp.HandlerFunc(func(http.ResponseWriter, *http.Request) error {
-		t.Fatal("next handler was called for rejected authentication")
-		return nil
-	}))
-	if err == nil {
-		t.Fatal("expected authentication error")
-	}
-
-	assertPlaceholderAbsent(t, repl, "http.auth.candidate.id")
-}
-
-func newRequestWithReplacer() (*http.Request, *caddy.Replacer) {
-	req := httptest.NewRequest(http.MethodGet, "/", nil)
-	repl := caddy.NewReplacer()
-	ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
-	return req.WithContext(ctx), repl
-}
-
-func assertPlaceholder(t *testing.T, repl *caddy.Replacer, key, expected string) {
-	t.Helper()
-	actual, ok := repl.GetString(key)
-	if !ok {
-		t.Fatalf("expected placeholder %q to be set", key)
-	}
-	if actual != expected {
-		t.Fatalf("expected placeholder %q to be %q, got %q", key, expected, actual)
-	}
-}
-
-func assertPlaceholderAbsent(t *testing.T, repl *caddy.Replacer, key string) {
-	t.Helper()
-	if actual, ok := repl.GetString(key); ok {
-		t.Fatalf("expected placeholder %q to be absent, got %q", key, actual)
-	}
-}
-
-type staticAuthenticator struct {
-	user   User
-	authed bool
-	err    error
-}
-
-func (a staticAuthenticator) Authenticate(http.ResponseWriter, *http.Request) (User, bool, error) {
-	return a.user, a.authed, a.err
-}

modules/caddyhttp/celmatcher.go

@@ -108,7 +108,7 @@ func (m *MatchExpression) UnmarshalJSON(data []byte) error {
 		return json.Unmarshal(data, &m.Expr)
 	}
 	// otherwise, it's a full object, so unmarshal it,
-	// using a temp map to avoid infinite recursion
+	// using an temp map to avoid infinite recursion
 	var tmpJson map[string]any
 	err := json.Unmarshal(data, &tmpJson)
 	*m = MatchExpression{
@@ -118,7 +118,7 @@ func (m *MatchExpression) UnmarshalJSON(data []byte) error {
 	return err
 }
 
-// Provision sets up m.
+// Provision sets ups m.
 func (m *MatchExpression) Provision(ctx caddy.Context) error {
 	m.log = ctx.Logger()
 
@@ -319,7 +319,7 @@ func (cr celHTTPRequest) Value() any  { return cr }
 
 var pkixNameCELType = cel.ObjectType("pkix.Name", traits.ReceiverType)
 
-// celPkixName wraps a pkix.Name with
+// celPkixName wraps an pkix.Name with
 // methods to satisfy the ref.Val interface.
 type celPkixName struct{ *pkix.Name }
 

modules/caddyhttp/celmatcher_test.go

@@ -79,7 +79,7 @@ eqp31wM9il1n+guTNyxJd+FzVAH+hCZE5K+tCgVDdVFUlDEHHbS/wqb2PSIoouLV
 			wantResult: true,
 		},
 		{
-			name: "header matches a placeholder replaced during the header matcher (MatchHeader)",
+			name: "header matches an placeholder replaced during the header matcher (MatchHeader)",
 			expression: &MatchExpression{
 				Expr: `header({'Field': '\{http.request.uri.path}'})`,
 			},

modules/caddyhttp/encode/caddyfile.go

@@ -41,10 +41,7 @@ func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error)
 //
 //	encode [<matcher>] <formats...> {
 //	    gzip           [<level>]
-//	    zstd           [<level>] {
-//	        level           <level>
-//	        disable_checksum
-//	    }
+//	    zstd
 //	    minimum_length <length>
 //	    # response matcher block
 //	    match {

modules/caddyhttp/encode/encode.go

@@ -162,7 +162,7 @@ func (enc *Encode) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyh
 
 			// to comply with RFC 9110 section 8.8.3(.3), we modify the Etag when encoding
 			// by appending a hyphen and the encoder name; the problem is, the client will
-			// send back that Etag in an If-None-Match header, but upstream handlers that set
+			// send back that Etag in a If-None-Match header, but upstream handlers that set
 			// the Etag in the first place don't know that we appended to their Etag! so here
 			// we have to strip our addition so the upstream handlers can still honor client
 			// caches without knowing about our changes...
@@ -369,7 +369,7 @@ const sniffLen = 512
 
 // ReadFrom will try to use sendfile to copy from the reader to the response writer.
 // It's only used if the response writer implements io.ReaderFrom and the data can't be compressed.
-// It's based on the standard library HTTP/1.1 response writer implementation.
+// It's based on stdlin http1.1 response writer implementation.
 // https://github.com/golang/go/blob/f4e3ec3dbe3b8e04a058d266adf8e048bab563f2/src/net/http/server.go#L586
 func (rw *responseWriter) ReadFrom(r io.Reader) (int64, error) {
 	rf, ok := rw.ResponseWriter.(io.ReaderFrom)

modules/caddyhttp/encode/zstd/zstd.go

@@ -33,10 +33,6 @@ type Zstd struct {
 	// The compression level. Accepted values: fastest, better, best, default.
 	Level string `json:"level,omitempty"`
 
-	// Whether to include the optional 4-byte zstd frame checksum trailer.
-	// If unset, the upstream zstd library default is preserved.
-	Checksum *bool `json:"checksum,omitempty"`
-
 	// Compression level refer to type constants value from zstd.SpeedFastest to zstd.SpeedBestCompression
 	level zstd.EncoderLevel
 }
@@ -52,48 +48,19 @@ func (Zstd) CaddyModule() caddy.ModuleInfo {
 // UnmarshalCaddyfile sets up the handler from Caddyfile tokens.
 func (z *Zstd) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 	d.Next() // consume option name
-	args := d.RemainingArgs()
-	switch len(args) {
-	case 0:
-	case 1:
-		if _, err := parseEncoderLevel(args[0]); err != nil {
-			return d.Err(err.Error())
-		}
-		z.Level = args[0]
-	default:
-		return d.ArgErr()
+	if !d.NextArg() {
+		return nil
 	}
-
-	for nesting := d.Nesting(); d.NextBlock(nesting); {
-		switch d.Val() {
-		case "level":
-			args := d.RemainingArgs()
-			if len(args) != 1 {
-				return d.ArgErr()
-			}
-			if z.Level != "" {
-				return d.Err("compression level already specified")
-			}
-			if _, err := parseEncoderLevel(args[0]); err != nil {
-				return d.Err(err.Error())
-			}
-			z.Level = args[0]
-
-		case "disable_checksum":
-			if d.NextArg() {
-				return d.ArgErr()
-			}
-			if z.Checksum != nil {
-				return d.Err("checksum already specified")
-			}
-			disabled := false
-			z.Checksum = &disabled
-
-		default:
-			return d.Errf("unknown subdirective '%s'", d.Val())
-		}
+	levelStr := d.Val()
+	if ok, _ := zstd.EncoderLevelFromString(levelStr); !ok {
+		return d.Errf("unexpected compression level, use one of '%s', '%s', '%s', '%s'",
+			zstd.SpeedFastest,
+			zstd.SpeedBetterCompression,
+			zstd.SpeedBestCompression,
+			zstd.SpeedDefault,
+		)
 	}
-
+	z.Level = levelStr
 	return nil
 }
 
@@ -102,11 +69,15 @@ func (z *Zstd) Provision(ctx caddy.Context) error {
 	if z.Level == "" {
 		z.Level = zstd.SpeedDefault.String()
 	}
-	level, err := parseEncoderLevel(z.Level)
-	if err != nil {
-		return err
+	var ok bool
+	if ok, z.level = zstd.EncoderLevelFromString(z.Level); !ok {
+		return fmt.Errorf("unexpected compression level, use one of '%s', '%s', '%s', '%s'",
+			zstd.SpeedFastest,
+			zstd.SpeedDefault,
+			zstd.SpeedBetterCompression,
+			zstd.SpeedBestCompression,
+		)
 	}
-	z.level = level
 	return nil
 }
 
@@ -119,45 +90,14 @@ func (z Zstd) NewEncoder() encode.Encoder {
 	// The default of 8MB for the window is
 	// too large for many clients, so we limit
 	// it to 128K to lighten their load.
-	writer, _ := zstd.NewWriter(nil, z.writerOptions(128<<10)...)
-	return writer
-}
-
-func (z Zstd) writerOptions(windowSize int) []zstd.EOption {
-	opts := []zstd.EOption{
-		zstd.WithWindowSize(windowSize),
+	writer, _ := zstd.NewWriter(
+		nil,
+		zstd.WithWindowSize(128<<10),
 		zstd.WithEncoderConcurrency(1),
 		zstd.WithZeroFrames(true),
-		zstd.WithEncoderLevel(z.encoderLevel()),
-	}
-	if z.Checksum != nil {
-		opts = append(opts, zstd.WithEncoderCRC(*z.Checksum))
-	}
-	return opts
-}
-
-func (z Zstd) encoderLevel() zstd.EncoderLevel {
-	if z.level != 0 {
-		return z.level
-	}
-	if z.Level != "" {
-		if level, err := parseEncoderLevel(z.Level); err == nil {
-			return level
-		}
-	}
-	return zstd.SpeedDefault
-}
-
-func parseEncoderLevel(level string) (zstd.EncoderLevel, error) {
-	if ok, encLevel := zstd.EncoderLevelFromString(level); ok {
-		return encLevel, nil
-	}
-	return 0, fmt.Errorf("unexpected compression level, use one of '%s', '%s', '%s', '%s'",
-		zstd.SpeedFastest,
-		zstd.SpeedBetterCompression,
-		zstd.SpeedBestCompression,
-		zstd.SpeedDefault,
+		zstd.WithEncoderLevel(z.level),
 	)
+	return writer
 }
 
 // Interface guards

modules/caddyhttp/fileserver/browse.go

@@ -281,13 +281,7 @@ func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Re
 			sortParam = sortCookie.Value
 		}
 	case sortByName, sortByNameDirFirst, sortBySize, sortByTime:
-		http.SetCookie(w, &http.Cookie{ //nolint:gosec // Secure depends on whether the request itself used TLS
-			Name:     "sort",
-			Value:    sortParam,
-			Secure:   r.TLS != nil,
-			HttpOnly: true,
-			SameSite: http.SameSiteLaxMode,
-		})
+		http.SetCookie(w, &http.Cookie{Name: "sort", Value: sortParam, Secure: r.TLS != nil})
 	}
 
 	// then figure out the order
@@ -298,13 +292,7 @@ func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Re
 			orderParam = orderCookie.Value
 		}
 	case sortOrderAsc, sortOrderDesc:
-		http.SetCookie(w, &http.Cookie{ //nolint:gosec // Secure depends on whether the request itself used TLS
-			Name:     "order",
-			Value:    orderParam,
-			Secure:   r.TLS != nil,
-			HttpOnly: true,
-			SameSite: http.SameSiteLaxMode,
-		})
+		http.SetCookie(w, &http.Cookie{Name: "order", Value: orderParam, Secure: r.TLS != nil})
 	}
 
 	// finally, apply the sorting and limiting

modules/caddyhttp/fileserver/browsetplcontext.go

@@ -20,6 +20,7 @@ import (
 	"net/url"
 	"os"
 	"path"
+	"path/filepath"
 	"slices"
 	"sort"
 	"strconv"
@@ -99,7 +100,7 @@ func (fsrv *FileServer) directoryListing(ctx context.Context, fileSystem fs.FS,
 			}
 
 			if fsrv.Browse.RevealSymlinks {
-				symLinkTarget, err := os.Readlink(path)
+				symLinkTarget, err := filepath.EvalSymlinks(path)
 				if err == nil {
 					symlinkPath = symLinkTarget
 				}

modules/caddyhttp/fileserver/matcher_test.go

@@ -28,7 +28,6 @@ import (
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/internal/filesystems"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
-	"github.com/caddyserver/caddy/v2/modules/caddyhttp/rewrite"
 )
 
 type testCase struct {
@@ -189,105 +188,6 @@ func fileMatcherTest(t *testing.T, i int, tc testCase) {
 	}
 }
 
-func TestTryFilesRewriteEscapesMatchedPath(t *testing.T) {
-	root := t.TempDir()
-
-	tests := []struct {
-		name           string
-		requestTarget  string
-		filename       string
-		extraFiles     []string
-		wantPath       string
-		wantRequestURI string
-		skipWindows    bool
-	}{
-		{
-			name:           "question mark in path",
-			requestTarget:  "/%3F.html",
-			filename:       "?.html",
-			wantPath:       "/?.html",
-			wantRequestURI: "/%3F.html",
-			skipWindows:    true,
-		},
-		{
-			name:           "percent in path",
-			requestTarget:  "/%25.html",
-			filename:       "%.html",
-			wantPath:       "/%.html",
-			wantRequestURI: "/%25.html",
-		},
-		{
-			name:           "encoded question mark remains percent-encoded",
-			requestTarget:  "/%253F.html",
-			filename:       "%3F.html",
-			wantPath:       "/%3F.html",
-			wantRequestURI: "/%253F.html",
-		},
-		{
-			name:           "question mark in nested path",
-			requestTarget:  "/nested/%3F.html",
-			filename:       filepath.Join("nested", "?.html"),
-			wantPath:       "/nested/?.html",
-			wantRequestURI: "/nested/%3F.html",
-			skipWindows:    true,
-		},
-		{
-			name:           "encoded slash in filename does not conflict with nesting",
-			requestTarget:  "/nested%252Ffile.html",
-			filename:       "nested%2Ffile.html",
-			extraFiles:     []string{filepath.Join("nested", "file.html")},
-			wantPath:       "/nested%2Ffile.html",
-			wantRequestURI: "/nested%252Ffile.html",
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			if tc.skipWindows && runtime.GOOS == "windows" {
-				t.Skip("Windows file names cannot contain question marks")
-			}
-
-			for _, name := range append([]string{tc.filename}, tc.extraFiles...) {
-				filename := filepath.Join(root, name)
-				if err := os.MkdirAll(filepath.Dir(filename), 0o700); err != nil {
-					t.Fatalf("creating test file parent directory: %v", err)
-				}
-				if err := os.WriteFile(filename, []byte(name), 0o600); err != nil {
-					t.Fatalf("writing test file: %v", err)
-				}
-			}
-
-			m := &MatchFile{
-				fsmap:    &filesystems.FileSystemMap{},
-				Root:     root,
-				TryFiles: []string{"{http.request.uri.path}"},
-			}
-			req := httptest.NewRequest(http.MethodGet, "http://example.com"+tc.requestTarget, nil)
-			repl := caddyhttp.NewTestReplacer(req)
-
-			matched, err := m.MatchWithError(req)
-			if err != nil {
-				t.Fatalf("matching file: %v", err)
-			}
-			if !matched {
-				t.Fatalf("expected request %s to match %s", tc.requestTarget, tc.filename)
-			}
-
-			rewrite.Rewrite{URI: "{http.matchers.file.relative}"}.Rewrite(req, repl)
-
-			if req.URL.Path != tc.wantPath {
-				t.Errorf("rewritten path = %q, want %q", req.URL.Path, tc.wantPath)
-			}
-			if req.RequestURI != tc.wantRequestURI {
-				t.Errorf("rewritten request URI = %q, want %q", req.RequestURI, tc.wantRequestURI)
-			}
-			if req.URL.RawQuery != "" {
-				t.Errorf("rewritten raw query = %q, want empty", req.URL.RawQuery)
-			}
-		})
-	}
-}
-
 func TestPHPFileMatcher(t *testing.T) {
 	for i, tc := range []struct {
 		path         string

modules/caddyhttp/fileserver/staticfiles.go

@@ -29,7 +29,6 @@ import (
 	"runtime"
 	"strconv"
 	"strings"
-	"time"
 
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -124,7 +123,7 @@ type FileServer struct {
 	// put "hidden" in the list. To hide only ./hidden, put "./hidden" in the list.
 	//
 	// When possible, all paths are resolved to their absolute form before
-	// comparisons are made. For maximum clarity and explicitness, use complete,
+	// comparisons are made. For maximum clarity and explictness, use complete,
 	// absolute paths; or, for greater portability, use relative paths instead.
 	//
 	// Note that hide comparisons are case-sensitive. On case-insensitive
@@ -580,17 +579,7 @@ func (fsrv *FileServer) ServeHTTP(w http.ResponseWriter, r *http.Request, next c
 	// that errors generated by ServeContent are written immediately
 	// to the response, so we cannot handle them (but errors there
 	// are rare)
-	//
-	// There are a few file modification times that aren't useful
-	// to send in Last-Modified headers, but the golang http library only
-	// omits Last-Modified headers for the Unix epoch time. So, force
-	// the modification time to the epoch time if it's not useful.
-	zeroTime := time.Time{}
-	modTime := info.ModTime()
-	if !usefulModTime(modTime) {
-		modTime = zeroTime
-	}
-	http.ServeContent(w, r, info.Name(), modTime, file.(io.ReadSeeker))
+	http.ServeContent(w, r, info.Name(), info.ModTime(), file.(io.ReadSeeker))
 
 	return nil
 }
@@ -737,14 +726,6 @@ func (fsrv *FileServer) notFound(w http.ResponseWriter, r *http.Request, next ca
 	return caddyhttp.Error(http.StatusNotFound, nil)
 }
 
-// Indicates whether a file's modification time is useful for validator
-// generation purposes (i.e. inclusion in ETag and Last-Modified headers).
-// See issues #5548 and #7730.
-func usefulModTime(modTime time.Time) bool {
-	mtimeunix := modTime.Unix()
-	return mtimeunix != 0 && mtimeunix != 1
-}
-
 // calculateEtag computes an entity tag using a strong validator
 // without consuming the contents of the file. It requires the
 // file info contain the correct size and modification time.
@@ -762,8 +743,8 @@ func usefulModTime(modTime time.Time) bool {
 // which we consider precise enough to qualify as a strong validator.
 func calculateEtag(d os.FileInfo) string {
 	mtime := d.ModTime()
-	if !usefulModTime(mtime) {
-		return ""
+	if mtimeUnix := mtime.Unix(); mtimeUnix == 0 || mtimeUnix == 1 {
+		return "" // not useful anyway; see issue #5548
 	}
 	var sb strings.Builder
 	sb.WriteRune('"')
@@ -804,7 +785,7 @@ func redirect(w http.ResponseWriter, r *http.Request, toPath string) error {
 	if r.URL.RawQuery != "" {
 		toPath += "?" + r.URL.RawQuery
 	}
-	http.Redirect(w, r, toPath, http.StatusPermanentRedirect) //nolint:gosec // toPath is a same-origin path and leading // is stripped above
+	http.Redirect(w, r, toPath, http.StatusPermanentRedirect)
 	return nil
 }
 

modules/caddyhttp/fileserver/staticfiles_test.go

@@ -15,17 +15,10 @@
 package fileserver
 
 import (
-	"context"
-	"net/http"
-	"net/http/httptest"
-	"os"
 	"path/filepath"
 	"runtime"
 	"strings"
 	"testing"
-	"time"
-
-	"github.com/caddyserver/caddy/v2"
 )
 
 func TestFileHidden(t *testing.T) {
@@ -135,52 +128,3 @@ func TestFileHidden(t *testing.T) {
 		}
 	}
 }
-
-// Check to make sure that we don't serve ETag and Last-Modified headers
-// for files with invalid modification times
-func TestModTimeHeaders(t *testing.T) {
-	check_validator_headers(time.Now(), true, t)
-	check_validator_headers(time.Unix(0, 0), false, t)
-	check_validator_headers(time.Unix(1, 0), false, t)
-	check_validator_headers(time.Unix(2, 0), true, t)
-}
-
-func check_validator_headers(modTime time.Time, expect_headers bool, t *testing.T) {
-	f := false
-	fsrv := FileServer{
-		Root:          "./testdata",
-		CanonicalURIs: &f,
-	}
-	w := httptest.NewRecorder()
-	r, err := http.NewRequest("GET", "/modtime.txt", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	repl := caddy.NewReplacer()
-	ctx := context.WithValue(r.Context(), caddy.ReplacerCtxKey, repl)
-	r = r.WithContext(ctx)
-
-	ctx2, _ := caddy.NewContext(caddy.Context{Context: context.Background()}) // module will be nil by default
-	fsrv.Provision(ctx2)
-
-	path := "testdata/modtime.txt"
-	os.Chtimes(path, modTime, modTime)
-
-	fsrv.ServeHTTP(w, r, nil)
-
-	if expect_headers {
-		if w.Header().Get("ETag") == "" {
-			t.Errorf("Didn't get ETag header for file with valid mod time %s", modTime)
-		}
-		if w.Header().Get("Last-Modified") == "" {
-			t.Errorf("Didn't get Last-Modified header for file with valid mod time %s", modTime)
-		}
-	} else {
-		if w.Header().Get("ETag") != "" {
-			t.Errorf("Got ETag header for file with invalid mod time %s", modTime)
-		}
-		if w.Header().Get("Last-Modified") != "" {
-			t.Errorf("Got Last-Modified header for file with invalid mod time %s", modTime)
-		}
-	}
-}

modules/caddyhttp/http2listener.go

@@ -15,7 +15,7 @@ type connectionStater interface {
 
 // http2Listener wraps the listener to solve the following problems:
 // 1. prevent genuine h2c connections from succeeding if h2c is not enabled
-// and the connection doesn't implement connectionStater or the resulting NegotiatedProtocol
+// and the connection doesn't implment connectionStater or the resulting NegotiatedProtocol
 // isn't http2.
 // This does allow a connection to pass as tls enabled even if it's not, listener wrappers
 // can do this.

modules/caddyhttp/httpredirectlistener.go

@@ -101,7 +101,7 @@ type httpRedirectConn struct {
 
 // Read tries to peek at the first few bytes of the request, and if we get
 // an error reading the headers, and that error was due to the bytes looking
-// like an HTTP request, then we perform an HTTP->HTTPS redirect on the same
+// like an HTTP request, then we perform a HTTP->HTTPS redirect on the same
 // port as the original connection.
 func (c *httpRedirectConn) Read(p []byte) (int, error) {
 	if c.once {

modules/caddyhttp/marshalers.go

@@ -18,10 +18,9 @@ import (
 	"crypto/tls"
 	"net"
 	"net/http"
+	"strings"
 
 	"go.uber.org/zap/zapcore"
-
-	"github.com/caddyserver/caddy/v2/internal"
 )
 
 // LoggableHTTPRequest makes an HTTP request loggable with zap.Object().
@@ -48,12 +47,12 @@ func (r LoggableHTTPRequest) MarshalLogObject(enc zapcore.ObjectEncoder) error {
 	enc.AddString("method", r.Method)
 	enc.AddString("host", r.Host)
 	enc.AddString("uri", r.RequestURI)
-	enc.AddObject("headers", internal.LoggableHTTPHeader{
+	enc.AddObject("headers", LoggableHTTPHeader{
 		Header:               r.Header,
 		ShouldLogCredentials: r.ShouldLogCredentials,
 	})
 	if r.TransferEncoding != nil {
-		enc.AddArray("transfer_encoding", internal.LoggableStringArray(r.TransferEncoding))
+		enc.AddArray("transfer_encoding", LoggableStringArray(r.TransferEncoding))
 	}
 	if r.TLS != nil {
 		enc.AddObject("tls", LoggableTLSConnState(*r.TLS))
@@ -62,10 +61,44 @@ func (r LoggableHTTPRequest) MarshalLogObject(enc zapcore.ObjectEncoder) error {
 }
 
 // LoggableHTTPHeader makes an HTTP header loggable with zap.Object().
-type LoggableHTTPHeader = internal.LoggableHTTPHeader
+// Headers with potentially sensitive information (Cookie, Set-Cookie,
+// Authorization, and Proxy-Authorization) are logged with empty values.
+type LoggableHTTPHeader struct {
+	http.Header
+
+	ShouldLogCredentials bool
+}
+
+// MarshalLogObject satisfies the zapcore.ObjectMarshaler interface.
+func (h LoggableHTTPHeader) MarshalLogObject(enc zapcore.ObjectEncoder) error {
+	if h.Header == nil {
+		return nil
+	}
+	for key, val := range h.Header {
+		if !h.ShouldLogCredentials {
+			switch strings.ToLower(key) {
+			case "cookie", "set-cookie", "authorization", "proxy-authorization":
+				val = []string{"REDACTED"} // see #5669. I still think ▒▒▒▒ would be cool.
+			}
+		}
+		enc.AddArray(key, LoggableStringArray(val))
+	}
+	return nil
+}
 
 // LoggableStringArray makes a slice of strings marshalable for logging.
-type LoggableStringArray = internal.LoggableStringArray
+type LoggableStringArray []string
+
+// MarshalLogArray satisfies the zapcore.ArrayMarshaler interface.
+func (sa LoggableStringArray) MarshalLogArray(enc zapcore.ArrayEncoder) error {
+	if sa == nil {
+		return nil
+	}
+	for _, s := range sa {
+		enc.AppendString(s)
+	}
+	return nil
+}
 
 // LoggableTLSConnState makes a TLS connection state loggable with zap.Object().
 type LoggableTLSConnState tls.ConnectionState
@@ -88,5 +121,7 @@ func (t LoggableTLSConnState) MarshalLogObject(enc zapcore.ObjectEncoder) error
 // Interface guards
 var (
 	_ zapcore.ObjectMarshaler = (*LoggableHTTPRequest)(nil)
+	_ zapcore.ObjectMarshaler = (*LoggableHTTPHeader)(nil)
+	_ zapcore.ArrayMarshaler  = (*LoggableStringArray)(nil)
 	_ zapcore.ObjectMarshaler = (*LoggableTLSConnState)(nil)
 )

modules/caddyhttp/matchers.go

@@ -435,12 +435,12 @@ func (m MatchPath) MatchWithError(r *http.Request) (bool, error) {
 	// can be used instead.
 	reqPath := strings.ToLower(r.URL.Path)
 
+	// See #2917; Windows ignores trailing dots and spaces
+	// when accessing files (sigh), potentially causing a
+	// security risk (cry) if PHP files end up being served
+	// as static files, exposing the source code, instead of
+	// being matched by *.php to be treated as PHP scripts.
 	if runtime.GOOS == "windows" { // issue #5613
-		// Windows treats backslashes as path separators and
-		// ignores trailing dots and spaces when accessing files
-		// (sigh), potentially causing a security risk (cry) if
-		// protected files are not matched as intended.
-		reqPath = strings.ReplaceAll(reqPath, `\`, "/")
 		reqPath = strings.TrimRight(reqPath, ". ")
 	}
 
@@ -478,12 +478,7 @@ func (m MatchPath) MatchWithError(r *http.Request) (bool, error) {
 		// the intent is to compare that part of the path in raw/escaped
 		// space; i.e. "%40"=="%40", not "@", and "%2F"=="%2F", not "/"
 		if strings.Contains(matchPattern, "%") {
-			escapedPath := r.URL.EscapedPath()
-			if runtime.GOOS == "windows" {
-				escapedPath = windowsEscapedPathSeparatorRepl.Replace(escapedPath)
-				matchPattern = windowsEscapedPathSeparatorRepl.Replace(matchPattern)
-			}
-			reqPathForPattern := CleanPath(escapedPath, mergeSlashes)
+			reqPathForPattern := CleanPath(r.URL.EscapedPath(), mergeSlashes)
 			if m.matchPatternWithEscapeSequence(reqPathForPattern, matchPattern) {
 				return true, nil
 			}
@@ -648,14 +643,6 @@ func (MatchPath) matchPatternWithEscapeSequence(escapedPath, matchPath string) b
 	return matches
 }
 
-// windowsEscapedPathSeparatorRepl normalizes Windows backslash separators
-// while preserving escaped-path matching semantics.
-var windowsEscapedPathSeparatorRepl = strings.NewReplacer(
-	`\`, "%2f",
-	"%5c", "%2f",
-	"%5C", "%2f",
-)
-
 // CELLibrary produces options that expose this matcher for use in CEL
 // expression matchers.
 //
@@ -1575,14 +1562,6 @@ func ParseCaddyfileNestedMatcherSet(d *caddyfile.Dispenser) (caddy.ModuleMap, er
 	// instances of the matcher in this set
 	tokensByMatcherName := make(map[string][]caddyfile.Token)
 	for nesting := d.Nesting(); d.NextArg() || d.NextBlock(nesting); {
-		// if the token is quoted (backtick), treat it as a shorthand
-		// for an expression matcher, same as @named matcher parsing
-		if d.Token().Quoted() {
-			expressionToken := d.Token().Clone()
-			expressionToken.Text = "expression"
-			tokensByMatcherName["expression"] = append(tokensByMatcherName["expression"], expressionToken, d.Token())
-			continue
-		}
 		matcherName := d.Val()
 		tokensByMatcherName[matcherName] = append(tokensByMatcherName[matcherName], d.NextSegment()...)
 	}

modules/caddyhttp/matchers_test.go

@@ -461,61 +461,18 @@ func TestPathMatcherWindows(t *testing.T) {
 		return
 	}
 
+	req := &http.Request{URL: &url.URL{Path: "/index.php . . .."}}
 	repl := caddy.NewReplacer()
+	ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
+	req = req.WithContext(ctx)
 
-	for _, tc := range []struct {
-		name          string
-		path          string
-		requestTarget string
-		match         MatchPath
-	}{
-		{
-			name:  "trailing dots and spaces",
-			path:  "/index.php . . ..",
-			match: MatchPath{"*.php"},
-		},
-		{
-			name:          "encoded backslash path separator",
-			requestTarget: `/private%5csecret.txt`,
-			match:         MatchPath{"/private/*"},
-		},
-		{
-			name:          "encoded backslash path separator with escaped wildcard",
-			requestTarget: `/private%5csecret.txt`,
-			match:         MatchPath{"/private/%*"},
-		},
-		{
-			name:          "uppercase encoded backslash path separator with escaped wildcard",
-			requestTarget: `/private%5Csecret.txt`,
-			match:         MatchPath{"/private/%*"},
-		},
-		{
-			name:          "encoded backslash in escaped pattern",
-			requestTarget: `/private%5csecret.txt`,
-			match:         MatchPath{"/private%5c%*"},
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			u := &url.URL{Path: tc.path}
-			if tc.requestTarget != "" {
-				var err error
-				u, err = url.ParseRequestURI(tc.requestTarget)
-				if err != nil {
-					t.Fatalf("Parsing request target: %v", err)
-				}
-			}
-			req := &http.Request{URL: u}
-			ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
-			req = req.WithContext(ctx)
-
-			matched, err := tc.match.MatchWithError(req)
-			if err != nil {
-				t.Errorf("Expected no error, but got: %v", err)
-			}
-			if !matched {
-				t.Errorf("Expected %q to match %v", req.URL.Path, tc.match)
-			}
-		})
+	match := MatchPath{"*.php"}
+	matched, err := match.MatchWithError(req)
+	if err != nil {
+		t.Errorf("Expected no error, but got: %v", err)
+	}
+	if !matched {
+		t.Errorf("Expected to match; should ignore trailing dots and spaces")
 	}
 }
 

modules/caddyhttp/metrics.go

@@ -3,7 +3,6 @@ package caddyhttp
 import (
 	"context"
 	"errors"
-	"fmt"
 	"net/http"
 	"strings"
 	"sync"
@@ -11,14 +10,9 @@ import (
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
-	otelprom "go.opentelemetry.io/contrib/bridges/prometheus"
-	"go.opentelemetry.io/contrib/exporters/autoexport"
-	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
-	"go.opentelemetry.io/otel/sdk/resource"
-	semconv "go.opentelemetry.io/otel/semconv/v1.26.0"
 
 	"github.com/caddyserver/caddy/v2"
-	caddymetrics "github.com/caddyserver/caddy/v2/internal/metrics"
+	"github.com/caddyserver/caddy/v2/internal/metrics"
 )
 
 // Metrics configures metrics observations.
@@ -73,20 +67,10 @@ type Metrics struct {
 	// for production environments exposed to the internet).
 	ObserveCatchallHosts bool `json:"observe_catchall_hosts,omitempty"`
 
-	// Enable pushing metrics via OTLP in addition to the existing Prometheus
-	// scrape endpoints. When set, a PeriodicReader is attached to the shared
-	// Prometheus registry (via a Prometheus -> OpenTelemetry bridge), and the
-	// exporter is autoconfigured from the standard OTEL_* environment
-	// variables (OTEL_EXPORTER_OTLP_ENDPOINT, OTEL_EXPORTER_OTLP_PROTOCOL,
-	// OTEL_METRICS_EXPORTER, ...). Set OTEL_METRICS_EXPORTER=none or simply
-	// keep this field false to disable OTLP export.
-	OTLP bool `json:"otlp,omitempty"`
-
 	init           sync.Once
 	httpMetrics    *httpMetrics
 	allowedHosts   map[string]struct{}
 	hasHTTPSServer bool
-	meterProvider  *sdkmetric.MeterProvider
 }
 
 type httpMetrics struct {
@@ -163,70 +147,6 @@ func initHTTPMetrics(ctx caddy.Context, metrics *Metrics) {
 	}, httpLabels)
 }
 
-// provisionOTLP wires a MeterProvider that periodically reads the process-wide
-// Prometheus registry and pushes the result via OTLP. The exporter and reader
-// are autoconfigured from the standard OTEL_* environment variables, matching
-// the ergonomics of the existing `tracing` directive. It is a no-op when
-// m.OTLP is false, and honors OTEL_METRICS_EXPORTER=none (autoexport
-// short-circuits to a no-op reader in that case).
-func (m *Metrics) provisionOTLP(ctx caddy.Context) error {
-	if !m.OTLP {
-		return nil
-	}
-
-	// Register a Prometheus -> OpenTelemetry bridge against the process-wide
-	// Prometheus registry as the *default* source the NewMetricReader below
-	// will read from.
-	//
-	// NB: despite the "With*" naming, autoexport.WithFallbackMetricProducer is
-	// a package-level setter (it returns nothing) — it mutates autoexport's
-	// internal producer registry and takes effect on the very next call to
-	// NewMetricReader. It is NOT a MetricOption and must not be passed as one.
-	// Users can still override the source by setting OTEL_METRICS_PRODUCERS.
-	reg := ctx.GetMetricsRegistry()
-	autoexport.WithFallbackMetricProducer(func(context.Context) (sdkmetric.Producer, error) {
-		return otelprom.NewMetricProducer(otelprom.WithGatherer(reg)), nil
-	})
-
-	reader, err := autoexport.NewMetricReader(ctx)
-	if err != nil {
-		return fmt.Errorf("creating OTLP metric reader: %w", err)
-	}
-
-	version, _ := caddy.Version()
-	res, err := resource.Merge(resource.Default(), resource.NewSchemaless(
-		semconv.WebEngineName(ServerHeader),
-		semconv.WebEngineVersion(version),
-	))
-	if err != nil {
-		return fmt.Errorf("building OTLP metrics resource: %w", err)
-	}
-
-	m.meterProvider = sdkmetric.NewMeterProvider(
-		sdkmetric.WithResource(res),
-		sdkmetric.WithReader(reader),
-	)
-
-	return nil
-}
-
-// shutdown flushes and tears down the OTLP MeterProvider if one was provisioned.
-// Both ForceFlush and Shutdown are always attempted so that a flush failure
-// does not prevent the reader goroutines from being stopped; errors from both
-// are returned joined.
-func (m *Metrics) shutdown(ctx context.Context) error {
-	if m == nil || m.meterProvider == nil {
-		return nil
-	}
-
-	// ForceFlush gives the final collection a chance to reach the collector
-	// before the reader goroutine is stopped by Shutdown.
-	return errors.Join(
-		m.meterProvider.ForceFlush(ctx),
-		m.meterProvider.Shutdown(ctx),
-	)
-}
-
 // scanConfigForHosts scans the HTTP app configuration to build a set of allowed hosts
 // for metrics collection, similar to how auto-HTTPS scans for domain names.
 func (m *Metrics) scanConfigForHosts(app *App) {
@@ -314,7 +234,7 @@ func newMetricsInstrumentedRoute(ctx caddy.Context, handler string, next Handler
 func (h *metricsInstrumentedRoute) ServeHTTP(w http.ResponseWriter, r *http.Request) error {
 	server := serverNameFromContext(r.Context())
 	labels := prometheus.Labels{"server": server, "handler": h.handler}
-	method := caddymetrics.SanitizeMethod(r.Method)
+	method := metrics.SanitizeMethod(r.Method)
 	// the "code" value is set later, but initialized here to eliminate the possibility
 	// of a panic
 	statusLabels := prometheus.Labels{"server": server, "handler": h.handler, "method": method, "code": ""}
@@ -344,7 +264,7 @@ func (h *metricsInstrumentedRoute) ServeHTTP(w http.ResponseWriter, r *http.Requ
 	// being called when the headers are written.
 	// Effectively the same behaviour as promhttp.InstrumentHandlerTimeToWriteHeader.
 	writeHeaderRecorder := ShouldBufferFunc(func(status int, header http.Header) bool {
-		statusLabels["code"] = caddymetrics.SanitizeCode(status)
+		statusLabels["code"] = metrics.SanitizeCode(status)
 		ttfb := time.Since(start).Seconds()
 		h.metrics.httpMetrics.responseDuration.With(statusLabels).Observe(ttfb)
 		return false
@@ -360,7 +280,7 @@ func (h *metricsInstrumentedRoute) ServeHTTP(w http.ResponseWriter, r *http.Requ
 		if statusLabels["code"] == "" {
 			// we still sanitize it, even though it's likely to be 0. A 200 is
 			// returned on fallthrough so we want to reflect that.
-			statusLabels["code"] = caddymetrics.SanitizeCode(status)
+			statusLabels["code"] = metrics.SanitizeCode(status)
 		}
 
 		h.metrics.httpMetrics.requestDuration.With(statusLabels).Observe(dur)

modules/caddyhttp/metrics_test.go

@@ -523,56 +523,6 @@ func TestMetricsInstrumentedRoute(t *testing.T) {
 	}
 }
 
-func TestMetricsProvisionOTLPDisabled(t *testing.T) {
-	ctx, _ := caddy.NewContext(caddy.Context{Context: context.Background()})
-
-	m := &Metrics{OTLP: false}
-
-	if err := m.provisionOTLP(ctx); err != nil {
-		t.Fatalf("provisionOTLP returned unexpected error: %v", err)
-	}
-	if m.meterProvider != nil {
-		t.Fatalf("meterProvider should remain nil when OTLP is disabled")
-	}
-
-	// shutdown must be safe on a never-provisioned Metrics.
-	if err := m.shutdown(context.Background()); err != nil {
-		t.Fatalf("shutdown returned unexpected error: %v", err)
-	}
-}
-
-func TestMetricsProvisionOTLPNoopExporter(t *testing.T) {
-	// OTEL_METRICS_EXPORTER=none makes autoexport return its built-in
-	// no-op reader, which avoids any network I/O while still exercising
-	// the full provisionOTLP -> shutdown lifecycle.
-	t.Setenv("OTEL_METRICS_EXPORTER", "none")
-
-	ctx, _ := caddy.NewContext(caddy.Context{Context: context.Background()})
-
-	m := &Metrics{OTLP: true}
-
-	if err := m.provisionOTLP(ctx); err != nil {
-		t.Fatalf("provisionOTLP returned unexpected error: %v", err)
-	}
-	if m.meterProvider == nil {
-		t.Fatalf("provisionOTLP did not create a MeterProvider")
-	}
-
-	if err := m.shutdown(context.Background()); err != nil {
-		t.Fatalf("shutdown returned unexpected error: %v", err)
-	}
-}
-
-// shutdown on a nil receiver is a convenience so App.Stop can call it
-// without guarding against app.Metrics being unset.
-func TestMetricsShutdownNilReceiver(t *testing.T) {
-	var m *Metrics
-
-	if err := m.shutdown(context.Background()); err != nil {
-		t.Fatalf("shutdown on nil Metrics returned unexpected error: %v", err)
-	}
-}
-
 func BenchmarkMetricsInstrumentedRoute(b *testing.B) {
 	ctx, _ := caddy.NewContext(caddy.Context{Context: context.Background()})
 	m := &Metrics{

modules/caddyhttp/replacer.go

@@ -387,14 +387,17 @@ func addHTTPVarsToReplacer(repl *caddy.Replacer, req *http.Request, w http.Respo
 		switch key {
 		case "http.shutting_down":
 			server := req.Context().Value(ServerCtxKey).(*Server)
-			return server.shutdownAt.Load() != nil, true
+			server.shutdownAtMu.RLock()
+			defer server.shutdownAtMu.RUnlock()
+			return !server.shutdownAt.IsZero(), true
 		case "http.time_until_shutdown":
 			server := req.Context().Value(ServerCtxKey).(*Server)
-			t := server.shutdownAt.Load()
-			if t == nil {
+			server.shutdownAtMu.RLock()
+			defer server.shutdownAtMu.RUnlock()
+			if server.shutdownAt.IsZero() {
 				return nil, true
 			}
-			return time.Until(*t), true
+			return time.Until(server.shutdownAt), true
 		}
 
 		return nil, false

modules/caddyhttp/reverseproxy/caddyfile.go

@@ -67,7 +67,7 @@ func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error)
 //	    lb_retries <retries>
 //	    lb_try_duration <duration>
 //	    lb_try_interval <interval>
-//	    lb_retry_match <matcher>
+//	    lb_retry_match <request-matcher>
 //
 //	    # active health checking
 //	    health_uri          <uri>
@@ -96,7 +96,6 @@ func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error)
 //	    flush_interval     <duration>
 //	    request_buffers    <size>
 //	    response_buffers   <size>
-//	    stream_buffer_size <size>
 //	    stream_timeout     <duration>
 //	    stream_close_delay <duration>
 //	    verbose_logs
@@ -647,7 +646,7 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 				h.FlushInterval = caddy.Duration(dur)
 			}
 
-		case "request_buffers", "response_buffers", "stream_buffer_size":
+		case "request_buffers", "response_buffers":
 			subdir := d.Val()
 			if !d.NextArg() {
 				return d.ArgErr()
@@ -671,8 +670,6 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 				h.RequestBuffers = size
 			case "response_buffers":
 				h.ResponseBuffers = size
-			case "stream_buffer_size":
-				h.StreamBufferSize = int(size)
 			}
 
 		case "stream_timeout":
@@ -728,6 +725,9 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 				err = headers.CaddyfileHeaderOp(h.Headers.Request, args[0], "", nil)
 			case 2:
 				// some lint checks, I guess
+				if strings.EqualFold(args[0], "host") && (args[1] == "{hostport}" || args[1] == "{http.request.hostport}") {
+					caddy.Log().Named("caddyfile").Warn("Unnecessary header_up Host: the reverse proxy's default behavior is to pass headers to the upstream")
+				}
 				if strings.EqualFold(args[0], "x-forwarded-for") && (args[1] == "{remote}" || args[1] == "{http.request.remote}" || args[1] == "{remote_host}" || args[1] == "{http.request.remote.host}") {
 					caddy.Log().Named("caddyfile").Warn("Unnecessary header_up X-Forwarded-For: the reverse proxy's default behavior is to pass headers to the upstream")
 				}
@@ -885,14 +885,6 @@ func (h *Handler) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 					return err
 				}
 			}
-			// check if the user set 'header_up host upstream_hostport' when proxying to HTTPS
-			// this is unnecessary because it's the default behavior already
-			if te.TLSEnabled() && h.Headers != nil && h.Headers.Request != nil {
-				hostVal := h.Headers.Request.Set.Get("Host")
-				if hostVal == "{upstream_hostport}" || hostVal == "{http.reverse_proxy.upstream.hostport}" {
-					caddy.Log().Named("caddyfile").Warn("Unnecessary header_up Host: the reverse proxy's default behavior is to pass the configured upstream address to the upstream when proxying to HTTPS")
-				}
-			}
 			if commonScheme == "http" && te.TLSEnabled() {
 				return d.Errf("upstream address scheme is HTTP but transport is configured for HTTP+TLS (HTTPS)")
 			}

modules/caddyhttp/reverseproxy/fastcgi/client.go

@@ -135,8 +135,8 @@ type client struct {
 	logger *zap.Logger
 }
 
-// Do makes the request and returns an io.Reader that translates the data read
-// from the FastCGI responder out of FastCGI packets before returning it.
+// Do made the request and returns a io.Reader that translates the data read
+// from fcgi responder out of fcgi packet before returning it.
 func (c *client) Do(p map[string]string, req io.Reader) (r io.Reader, err error) {
 	// check for CONTENT_LENGTH, since the lack of it or wrong value will cause the backend to hang
 	if clStr, ok := p["CONTENT_LENGTH"]; !ok {
@@ -179,7 +179,7 @@ func (c *client) Do(p map[string]string, req io.Reader) (r io.Reader, err error)
 	return r, err
 }
 
-// clientCloser is an io.ReadCloser. It wraps an io.Reader with a Closer
+// clientCloser is a io.ReadCloser. It wraps a io.Reader with a Closer
 // that closes the client connection.
 type clientCloser struct {
 	rwc net.Conn
@@ -208,8 +208,8 @@ func (f clientCloser) Close() error {
 	return f.rwc.Close()
 }
 
-// Request returns an HTTP response with header and body
-// from the FastCGI responder.
+// Request returns a HTTP Response with Header and Body
+// from fcgi responder
 func (c *client) Request(p map[string]string, req io.Reader) (resp *http.Response, err error) {
 	r, err := c.Do(p, req)
 	if err != nil {

modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go

@@ -28,6 +28,8 @@ import (
 
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
+	"golang.org/x/text/language"
+	"golang.org/x/text/search"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
@@ -416,19 +418,14 @@ func (t Transport) buildEnv(r *http.Request) (envVars, error) {
 	return env, nil
 }
 
+var splitSearchNonASCII = search.New(language.Und, search.IgnoreCase)
+
 // splitPos returns the index where path should
 // be split based on t.SplitPath.
 //
 // example: if splitPath is [".php"]
 // "/path/to/script.php/some/path": ("/path/to/script.php", "/some/path")
 //
-// Matching is strictly ASCII case-insensitive. Bytes >= utf8.RuneSelf in path
-// never match any split entry: split strings are validated ASCII-only and
-// lower-cased in Provision(), so any Unicode equivalence (e.g. fullwidth or
-// mathematical letters folding to ASCII) would let an attacker upload a file
-// whose name contains such code points and have it served as PHP. See
-// FrankenPHP advisories GHSA-3g8v-8r37-cgjm and GHSA-v4h7-cj44-8fc8.
-//
 // Adapted from FrankenPHP's code (copyright 2026 Kévin Dunglas, MIT license)
 func (t Transport) splitPos(path string) int {
 	// TODO: from v1...
@@ -441,18 +438,31 @@ func (t Transport) splitPos(path string) int {
 
 	pathLen := len(path)
 
+	// We are sure that split strings are all ASCII-only and lower-case because of validation and normalization in Provision().
 	for _, split := range t.SplitPath {
 		splitLen := len(split)
-		if splitLen == 0 || splitLen > pathLen {
-			continue
-		}
 
-		for i := 0; i <= pathLen-splitLen; i++ {
+		for i := range pathLen {
+			if path[i] >= utf8.RuneSelf {
+				if _, end := splitSearchNonASCII.IndexString(path, split); end > -1 {
+					return end
+				}
+
+				break
+			}
+
+			if i+splitLen > pathLen {
+				continue
+			}
+
 			match := true
 			for j := range splitLen {
 				c := path[i+j]
+
 				if c >= utf8.RuneSelf {
-					match = false
+					if _, end := splitSearchNonASCII.IndexString(path, split); end > -1 {
+						return end
+					}
 
 					break
 				}

modules/caddyhttp/reverseproxy/fastcgi/fastcgi_test.go

@@ -191,65 +191,6 @@ func TestSplitPos(t *testing.T) {
 			splitPath: []string{".php"},
 			wantPos:   9,
 		},
-		// Regression tests adapted from FrankenPHP advisories
-		// GHSA-3g8v-8r37-cgjm and GHSA-v4h7-cj44-8fc8: search.IgnoreCase
-		// matched Unicode equivalents of ASCII letters as ".php", and an
-		// inner non-ASCII byte path could leave the match flag stale.
-		{
-			name:      "non-ascii byte after dot must not match",
-			path:      "/PoC-match-unset.¡.txt",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "non-ascii byte mid-extension must not match",
-			path:      "/script.p\xc2\xa1p",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "small full stop ﹒ in extension must not match",
-			path:      "/shell﹒php",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "fullwidth full stop ． in extension must not match",
-			path:      "/shell．php",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "fullwidth p in extension must not match",
-			path:      "/shell.ｐhp",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "circled php must not match",
-			path:      "/shell.ⓟⓗⓟ",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "mathematical sans-serif bold php must not match",
-			path:      "/shell.\U0001D5FD\U0001D5F5\U0001D5FD",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "mathematical script php must not match",
-			path:      "/shell.\U0001D4C5\U0001D4BD\U0001D4C5",
-			splitPath: []string{".php"},
-			wantPos:   -1,
-		},
-		{
-			name:      "circled php with later real php still picks the real one",
-			path:      "/shell.ⓟⓗⓟ.anything-after-payload.php",
-			splitPath: []string{".php"},
-			// "/shell." (7) + "ⓟⓗⓟ" (3*3 bytes) + ".anything-after-payload.php" (27) = 43
-			wantPos: 43,
-		},
 	}
 
 	for _, tt := range tests {
@@ -303,31 +244,3 @@ func TestSplitPosUnicodeSecurityRegression(t *testing.T) {
 		assert.Equal(t, ".txt.php", pathInfo, "path info should be the remainder after first .php")
 	}
 }
-
-// TestSplitPosSecurityRegressionUnicodeBypass guards against the FrankenPHP
-// advisories GHSA-3g8v-8r37-cgjm (uninitialized match flag on inner non-ASCII
-// byte) and GHSA-v4h7-cj44-8fc8 (Unicode equivalence via search.IgnoreCase
-// folding fullwidth/mathematical/circled letters onto ASCII). Every payload
-// below produced a false positive in the vulnerable implementation; none
-// must match here.
-func TestSplitPosSecurityRegressionUnicodeBypass(t *testing.T) {
-	t.Parallel()
-
-	tr := Transport{SplitPath: []string{".php"}}
-	payloads := []string{
-		"/PoC-match-unset.¡.txt",                // GHSA-3g8v: stale match=true on IndexString fallback
-		"/shell﹒php",                            // U+FE52 small full stop
-		"/shell．php",                            // U+FF0E fullwidth full stop
-		"/shell.ｐhp",                            // U+FF50 fullwidth p
-		"/shell.pｈp",                            // U+FF48 fullwidth h
-		"/shell.phｐ",                            // U+FF50 fullwidth p (trailing)
-		"/shell.\U0001D5C1\U0001D5B5\U0001D5C1", // mathematical sans-serif p/h
-		"/shell.\U0001D5FD\U0001D5F5\U0001D5FD", // mathematical sans-serif bold p/h
-		"/shell.\U0001D4C5\U0001D4BD\U0001D4C5", // mathematical script p/h
-		"/shell.ⓟⓗⓟ",                            // circled latin small
-	}
-
-	for _, p := range payloads {
-		assert.Equalf(t, -1, tr.splitPos(p), "payload %q must not be detected as .php", p)
-	}
-}

modules/caddyhttp/reverseproxy/headers_test.go

@@ -17,7 +17,7 @@ func TestAddForwardedHeadersNonIP(t *testing.T) {
 
 	// Mock the context variables required by Caddy.
 	// We need to inject the variable map manually since we aren't running the full server.
-	vars := map[string]any{
+	vars := map[string]interface{}{
 		caddyhttp.TrustedProxyVarKey: false,
 	}
 	ctx := context.WithValue(req.Context(), caddyhttp.VarsCtxKey, vars)
@@ -42,7 +42,7 @@ func TestAddForwardedHeaders_UnixSocketTrusted(t *testing.T) {
 	req.Header.Set("X-Forwarded-Proto", "https")
 	req.Header.Set("X-Forwarded-Host", "original.example.com")
 
-	vars := map[string]any{
+	vars := map[string]interface{}{
 		caddyhttp.TrustedProxyVarKey: true,
 		caddyhttp.ClientIPVarKey:     "1.2.3.4",
 	}
@@ -74,7 +74,7 @@ func TestAddForwardedHeaders_UnixSocketUntrusted(t *testing.T) {
 	req.Header.Set("X-Forwarded-Proto", "https")
 	req.Header.Set("X-Forwarded-Host", "spoofed.example.com")
 
-	vars := map[string]any{
+	vars := map[string]interface{}{
 		caddyhttp.TrustedProxyVarKey: false,
 		caddyhttp.ClientIPVarKey:     "",
 	}
@@ -103,7 +103,7 @@ func TestAddForwardedHeaders_UnixSocketTrustedNoExistingHeaders(t *testing.T) {
 	req := httptest.NewRequest("GET", "http://example.com/", nil)
 	req.RemoteAddr = "@"
 
-	vars := map[string]any{
+	vars := map[string]interface{}{
 		caddyhttp.TrustedProxyVarKey: true,
 		caddyhttp.ClientIPVarKey:     "5.6.7.8",
 	}

modules/caddyhttp/reverseproxy/healthchecks.go

@@ -522,7 +522,7 @@ func (h *Handler) doActiveHealthCheck(dialInfo DialInfo, hostAddr string, networ
 		body = io.LimitReader(body, h.HealthChecks.Active.MaxSize)
 	}
 	defer func() {
-		// drain any remaining body so connection could be reused
+		// drain any remaining body so connection could be re-used
 		_, _ = io.Copy(io.Discard, body)
 		resp.Body.Close()
 	}()

modules/caddyhttp/reverseproxy/hosts.go

@@ -174,7 +174,7 @@ func (u *Upstream) fillDynamicHost() {
 // Host is the basic, in-memory representation of the state of a remote host.
 // Its fields are accessed atomically and Host values must not be copied.
 type Host struct {
-	numRequests  atomic.Int64
+	numRequests  atomic.Int64 // atomic.Int64 is automatically aligned for us (see https://golang.org/pkg/sync/atomic/#pkg-note-BUG)
 	fails        atomic.Int64
 	activePasses atomic.Int64
 	activeFails  atomic.Int64
@@ -250,6 +250,7 @@ func (h *Host) resetHealth() {
 // (This returns the status only from the "active" health checks.)
 func (u *Upstream) healthy() bool {
 	return u.unhealthy.Load() == 0
+	// return atomic.LoadInt32(&u.unhealthy) == 0
 }
 
 // SetHealthy sets the upstream has healthy or unhealthy

modules/caddyhttp/reverseproxy/httptransport.go

@@ -32,7 +32,6 @@ import (
 	"time"
 
 	"github.com/pires/go-proxyproto"
-	"github.com/quic-go/quic-go"
 	"github.com/quic-go/quic-go/http3"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -162,8 +161,7 @@ type HTTPTransport struct {
 	// `HTTPS_PROXY`, and `NO_PROXY` environment variables.
 	NetworkProxyRaw json.RawMessage `json:"network_proxy,omitempty" caddy:"namespace=caddy.network_proxy inline_key=from"`
 
-	h3Transport   *http3.Transport // TODO: EXPERIMENTAL (May 2024)
-	quicTransport *quic.Transport  // used by h3Transport if sni placeholder is used, otherwise nil
+	h3Transport *http3.Transport // TODO: EXPERIMENTAL (May 2024)
 }
 
 // CaddyModule returns the Caddy module information.
@@ -501,25 +499,6 @@ func (h *HTTPTransport) NewTransport(caddyCtx caddy.Context) (*http.Transport, e
 			if err != nil {
 				return nil, fmt.Errorf("making TLS client config for HTTP/3 transport: %v", err)
 			}
-
-			if strings.Contains(h.TLS.ServerName, "{") {
-				// copied from quic-go
-				udpConn, err := net.ListenUDP("udp", nil)
-				if err != nil {
-					return nil, fmt.Errorf("making udp socket for HTTP/3 transport: %v", err)
-				}
-				h.quicTransport = &quic.Transport{Conn: udpConn}
-				h.h3Transport.Dial = func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
-					// tlsCfg is already cloned from h3Transport.TLSClientConfig
-					repl := ctx.Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
-					tlsCfg.ServerName = repl.ReplaceAll(tlsCfg.ServerName, "")
-					udpAddr, err := resolveUDPAddr(ctx, "udp", addr)
-					if err != nil {
-						return nil, err
-					}
-					return h.quicTransport.DialEarly(ctx, udpAddr, tlsCfg, cfg)
-				}
-			}
 		}
 	} else if len(h.Versions) > 1 && slices.Contains(h.Versions, "3") {
 		return nil, fmt.Errorf("if HTTP/3 is enabled to the upstream, no other HTTP versions are supported")
@@ -546,71 +525,6 @@ func (h *HTTPTransport) NewTransport(caddyCtx caddy.Context) (*http.Transport, e
 	return rt, nil
 }
 
-// TODO: EXPERIMENTAL (May 2025)
-// copied from quic-go
-func resolveUDPAddr(ctx context.Context, network, addr string) (*net.UDPAddr, error) {
-	host, portStr, err := net.SplitHostPort(addr)
-	if err != nil {
-		return nil, err
-	}
-	port, err := net.LookupPort(network, portStr)
-	if err != nil {
-		return nil, err
-	}
-	resolver := net.DefaultResolver
-	ipAddrs, err := resolver.LookupIPAddr(ctx, host)
-	if err != nil {
-		return nil, err
-	}
-	addrs := addrList(ipAddrs)
-	ip := addrs.forResolve(network, addr)
-	return &net.UDPAddr{IP: ip.IP, Port: port, Zone: ip.Zone}, nil
-}
-
-// TODO: EXPERIMENTAL (May 2025)
-// copied from quic-go
-// An addrList represents a list of network endpoint addresses.
-// Copy from [net.addrList] and change type from [net.Addr] to [net.IPAddr]
-type addrList []net.IPAddr
-
-// isIPv4 reports whether addr contains an IPv4 address.
-func isIPv4(addr net.IPAddr) bool {
-	return addr.IP.To4() != nil
-}
-
-// isNotIPv4 reports whether addr does not contain an IPv4 address.
-func isNotIPv4(addr net.IPAddr) bool { return !isIPv4(addr) }
-
-// forResolve returns the most appropriate address in address for
-// a call to ResolveTCPAddr, ResolveUDPAddr, or ResolveIPAddr.
-// IPv4 is preferred, unless addr contains an IPv6 literal.
-func (addrs addrList) forResolve(network, addr string) net.IPAddr {
-	var want6 bool
-	switch network {
-	case "ip":
-		// IPv6 literal (addr does NOT contain a port)
-		want6 = strings.ContainsRune(addr, ':')
-	case "tcp", "udp":
-		// IPv6 literal. (addr contains a port, so look for '[')
-		want6 = strings.ContainsRune(addr, '[')
-	}
-	if want6 {
-		return addrs.first(isNotIPv4)
-	}
-	return addrs.first(isIPv4)
-}
-
-// first returns the first address which satisfies strategy, or if
-// none do, then the first address of any kind.
-func (addrs addrList) first(strategy func(net.IPAddr) bool) net.IPAddr {
-	for _, addr := range addrs {
-		if strategy(addr) {
-			return addr
-		}
-	}
-	return addrs[0]
-}
-
 // RequestHeaderOps implements TransportHeaderOpsProvider. It returns header
 // operations for requests when the transport's configuration indicates they
 // should be applied. In particular, when TLS is enabled for this transport,
@@ -709,16 +623,6 @@ func (h HTTPTransport) Cleanup() error {
 		return nil
 	}
 	h.Transport.CloseIdleConnections()
-	// h3 related cleanup, errors are ignored as nothing can be done.
-	// TODO: log these errors if any
-	if h.h3Transport != nil {
-		h.h3Transport.CloseIdleConnections()
-		_ = h.h3Transport.Close()
-		if h.quicTransport != nil {
-			_ = h.quicTransport.Close()
-			_ = h.quicTransport.Conn.Close()
-		}
-	}
 	return nil
 }
 

modules/caddyhttp/reverseproxy/httptransport_test.go

@@ -4,14 +4,11 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"net"
-	"net/url"
 	"reflect"
 	"testing"
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
-	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
 func TestHTTPTransportUnmarshalCaddyFileWithCaPools(t *testing.T) {
@@ -132,11 +129,11 @@ func TestHTTPTransport_DialTLSContext_ProxyProtocol(t *testing.T) {
 	defer cancel()
 
 	tests := []struct {
-		name                     string
-		tls                      *TLSConfig
-		proxyProtocol            string
+		name                    string
+		tls                     *TLSConfig
+		proxyProtocol           string
 		serverNameHasPlaceholder bool
-		expectDialTLSContext     bool
+		expectDialTLSContext    bool
 	}{
 		{
 			name:                 "no TLS, no proxy protocol",
@@ -198,84 +195,3 @@ func TestHTTPTransport_DialTLSContext_ProxyProtocol(t *testing.T) {
 	}
 }
 
-// TestHTTPTransport_DialContext_DialInfoOverride is a regression test for
-// issue #6447: a `tcp4/`-prefixed upstream silently fell back to plain `tcp`
-// because dialContext only honored DialInfo for unix networks. PR #7300 widened
-// the condition so DialInfo is honored when no upstream HTTP proxy is in use,
-// and skipped (for non-unix networks) when one is. Both halves are pinned here.
-func TestHTTPTransport_DialContext_DialInfoOverride(t *testing.T) {
-	ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
-	defer cancel()
-
-	ln, err := net.Listen("tcp4", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("listen: %v", err)
-	}
-	t.Cleanup(func() { ln.Close() })
-	go func() {
-		for {
-			c, err := ln.Accept()
-			if err != nil {
-				return
-			}
-			c.Close()
-		}
-	}()
-
-	ht := &HTTPTransport{}
-	rt, err := ht.NewTransport(ctx)
-	if err != nil {
-		t.Fatalf("NewTransport: %v", err)
-	}
-
-	proxyURL, err := url.Parse("http://proxy.example:8080")
-	if err != nil {
-		t.Fatalf("parse proxy URL: %v", err)
-	}
-
-	tests := []struct {
-		name        string
-		proxy       bool
-		dialInfo    string
-		defaultAddr string
-	}{
-		{
-			// no proxy: DialInfo should be applied, so the dial lands on
-			// the live listener despite the bogus default address.
-			name:        "honors DialInfo when no proxy",
-			proxy:       false,
-			dialInfo:    ln.Addr().String(),
-			defaultAddr: "127.0.0.1:1",
-		},
-		{
-			// proxy active: DialInfo must NOT be applied for non-unix
-			// networks; the default address (the live listener) is used.
-			name:        "skips DialInfo when proxy active",
-			proxy:       true,
-			dialInfo:    "127.0.0.1:1",
-			defaultAddr: ln.Addr().String(),
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			dialCtx := context.WithValue(context.Background(), caddyhttp.VarsCtxKey, make(map[string]any))
-			caddyhttp.SetVar(dialCtx, dialInfoVarKey, DialInfo{
-				Network: "tcp4",
-				Address: tt.dialInfo,
-			})
-			if tt.proxy {
-				caddyhttp.SetVar(dialCtx, proxyVarKey, proxyURL)
-			}
-
-			conn, err := rt.DialContext(dialCtx, "tcp", tt.defaultAddr)
-			if err != nil {
-				t.Fatalf("DialContext: %v", err)
-			}
-			t.Cleanup(func() { conn.Close() })
-			if got := conn.RemoteAddr().String(); got != ln.Addr().String() {
-				t.Fatalf("conn.RemoteAddr() = %s, want %s", got, ln.Addr().String())
-			}
-		})
-	}
-}

modules/caddyhttp/reverseproxy/retries_test.go

@@ -1,7 +1,6 @@
 package reverseproxy
 
 import (
-	"context"
 	"errors"
 	"io"
 	"net"
@@ -9,13 +8,11 @@ import (
 	"net/http/httptest"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"testing"
 
 	"go.uber.org/zap"
 
 	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
 	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
@@ -258,530 +255,3 @@ func TestDialErrorBodyRetry(t *testing.T) {
 		})
 	}
 }
-
-// newExpressionMatcher provisions a MatchExpression for use in tests
-func newExpressionMatcher(t *testing.T, expr string) *caddyhttp.MatchExpression {
-	t.Helper()
-	ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
-	t.Cleanup(cancel)
-	m := &caddyhttp.MatchExpression{Expr: expr}
-	if err := m.Provision(ctx); err != nil {
-		t.Fatalf("failed to provision expression %q: %v", expr, err)
-	}
-	return m
-}
-
-// minimalHandlerWithRetryMatch is like minimalHandler but also configures
-// RetryMatch so that response-based retry can be tested
-func minimalHandlerWithRetryMatch(retries int, retryMatch caddyhttp.MatcherSets, upstreams ...*Upstream) *Handler {
-	h := minimalHandler(retries, upstreams...)
-	h.LoadBalancing.RetryMatch = retryMatch
-	return h
-}
-
-// TestResponseRetryStatusCode verifies that when an upstream returns a status
-// code matching a retry_match expression, the request is retried on the next
-// upstream
-func TestResponseRetryStatusCode(t *testing.T) {
-	// Bad upstream: returns 502
-	badServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusBadGateway)
-	}))
-	t.Cleanup(badServer.Close)
-
-	// Good upstream: returns 200
-	goodServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("ok"))
-	}))
-	t.Cleanup(goodServer.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, "{http.reverse_proxy.status_code} in [502, 503]"),
-		},
-	}
-
-	// RoundRobin picks index 1 first, then 0
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: goodServer.Listener.Addr().String()},
-		{Host: new(Host), Dial: badServer.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(1, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	gotStatus := rec.Code
-	if err != nil {
-		if herr, ok := err.(caddyhttp.HandlerError); ok {
-			gotStatus = herr.StatusCode
-		}
-	}
-
-	if gotStatus != http.StatusOK {
-		t.Errorf("status: got %d, want %d (err=%v)", gotStatus, http.StatusOK, err)
-	}
-}
-
-// TestResponseRetryHeader verifies that response header matching triggers
-// retries via a CEL expression checking {rp.header.*}
-func TestResponseRetryHeader(t *testing.T) {
-	// Bad upstream: returns 200 but with X-Upstream-Retry header
-	badServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("X-Upstream-Retry", "true")
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("bad"))
-	}))
-	t.Cleanup(badServer.Close)
-
-	// Good upstream: returns 200 without retry header
-	goodServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("good"))
-	}))
-	t.Cleanup(goodServer.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, `{http.reverse_proxy.header.X-Upstream-Retry} == "true"`),
-		},
-	}
-
-	// RoundRobin picks index 1 first, then 0
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: goodServer.Listener.Addr().String()},
-		{Host: new(Host), Dial: badServer.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(1, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-
-	if rec.Code != http.StatusOK {
-		t.Errorf("status: got %d, want %d", rec.Code, http.StatusOK)
-	}
-	if rec.Body.String() != "good" {
-		t.Errorf("body: got %q, want %q (retried to wrong upstream)", rec.Body.String(), "good")
-	}
-}
-
-// TestResponseRetryNoMatchNoRetry verifies that when no retry_match entries
-// match the response, the original response is returned without retrying
-func TestResponseRetryNoMatchNoRetry(t *testing.T) {
-	var hits atomic.Int32
-
-	// Server that returns 500 - but retry_match only matches 502/503
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		hits.Add(1)
-		w.WriteHeader(http.StatusInternalServerError)
-	}))
-	t.Cleanup(server.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, "{http.reverse_proxy.status_code} in [502, 503]"),
-		},
-	}
-
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(2, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	_ = h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	// Only one hit - no retry since 500 doesn't match [502, 503]
-	if hits.Load() != 1 {
-		t.Errorf("upstream hits: got %d, want 1 (should not have retried)", hits.Load())
-	}
-}
-
-// TestResponseRetryExhaustedPreservesStatusCode verifies that when retries
-// are exhausted, the actual upstream status code (e.g. 503) is reported
-// to the client, not a generic 502
-func TestResponseRetryExhaustedPreservesStatusCode(t *testing.T) {
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusServiceUnavailable) // 503
-	}))
-	t.Cleanup(server.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, "{http.reverse_proxy.status_code} == 503"),
-		},
-	}
-
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(1, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	gotStatus := rec.Code
-	if err != nil {
-		if herr, ok := err.(caddyhttp.HandlerError); ok {
-			gotStatus = herr.StatusCode
-		}
-	}
-
-	// Must return 503 (actual upstream status), not 502 (generic proxy error)
-	if gotStatus != http.StatusServiceUnavailable {
-		t.Errorf("status: got %d, want %d (status code not preserved)", gotStatus, http.StatusServiceUnavailable)
-	}
-}
-
-// TestResponseRetryHeaderCleanup verifies that stale response header
-// placeholders from a previous upstream attempt are cleaned up before the
-// next retry evaluation. Without cleanup, a header like X-Retry: true from
-// upstream A would leak into the retry match for upstream B even if B does
-// not set that header
-func TestResponseRetryHeaderCleanup(t *testing.T) {
-	// First upstream: returns 200 with X-Retry header (triggers retry)
-	firstServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("X-Retry", "true")
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("first"))
-	}))
-	t.Cleanup(firstServer.Close)
-
-	// Second upstream: returns 200 WITHOUT X-Retry header (should NOT retry)
-	secondServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("second"))
-	}))
-	t.Cleanup(secondServer.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, `{http.reverse_proxy.header.X-Retry} == "true"`),
-		},
-	}
-
-	// RoundRobin picks index 1 first, then 0
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: secondServer.Listener.Addr().String()},
-		{Host: new(Host), Dial: firstServer.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(2, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-
-	// Should get "second" - the first upstream's X-Retry header must not
-	// leak into the second upstream's retry evaluation
-	if rec.Body.String() != "second" {
-		t.Errorf("body: got %q, want %q (stale header leaked between retries)", rec.Body.String(), "second")
-	}
-}
-
-// TestRequestOnlyMatcherDoesNotRetryResponses verifies that a pure request
-// matcher like method PUT in lb_retry_match does NOT trigger response-based
-// retries. Only expression matchers (which can reference response data)
-// should trigger response retries
-func TestRequestOnlyMatcherDoesNotRetryResponses(t *testing.T) {
-	var hits atomic.Int32
-
-	// Server returns 200 OK for all requests
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		hits.Add(1)
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("ok"))
-	}))
-	t.Cleanup(server.Close)
-
-	// method PUT matcher - should NOT trigger response retries
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			caddyhttp.MatchMethod{"PUT"},
-		},
-	}
-
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(2, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodPut, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-	if err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-
-	// Should hit only once - no retry for 200 OK even though method matches
-	if hits.Load() != 1 {
-		t.Errorf("upstream hits: got %d, want 1 (should not retry successful responses)", hits.Load())
-	}
-	if rec.Code != http.StatusOK {
-		t.Errorf("status: got %d, want %d", rec.Code, http.StatusOK)
-	}
-}
-
-// brokenUpstreamAddr returns the address of a TCP listener that accepts
-// connections but immediately closes them, causing a transport error (not
-// a dial error). This simulates an upstream that is reachable but broken
-func brokenUpstreamAddr(t *testing.T) string {
-	t.Helper()
-	ln, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	t.Cleanup(func() { ln.Close() })
-	go func() {
-		for {
-			conn, err := ln.Accept()
-			if err != nil {
-				return
-			}
-			conn.Close()
-		}
-	}()
-	return ln.Addr().String()
-}
-
-// TestTransportErrorPlaceholder verifies that the is_transport_error
-// placeholder is set to true during transport error evaluation in tryAgain()
-// and that expression matchers using {rp.is_transport_error} can match it
-func TestTransportErrorPlaceholder(t *testing.T) {
-	broken := brokenUpstreamAddr(t)
-
-	goodServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusOK)
-		w.Write([]byte("ok"))
-	}))
-	t.Cleanup(goodServer.Close)
-
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, "{http.reverse_proxy.is_transport_error} == true"),
-		},
-	}
-
-	// RoundRobin picks index 1 first (broken), then 0 (good)
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: goodServer.Listener.Addr().String()},
-		{Host: new(Host), Dial: broken},
-	}
-
-	h := minimalHandlerWithRetryMatch(1, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodPost, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	err := h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	gotStatus := rec.Code
-	if err != nil {
-		if herr, ok := err.(caddyhttp.HandlerError); ok {
-			gotStatus = herr.StatusCode
-		}
-	}
-
-	// POST transport error should be retried because is_transport_error matched
-	if gotStatus != http.StatusOK {
-		t.Errorf("status: got %d, want %d (transport error should have been retried)", gotStatus, http.StatusOK)
-	}
-}
-
-// TestTransportErrorPlaceholderNotSetForResponses verifies that the
-// is_transport_error placeholder is NOT set when evaluating response
-// matchers, so {rp.is_transport_error} is false for response retries
-func TestTransportErrorPlaceholderNotSetForResponses(t *testing.T) {
-	var hits atomic.Int32
-
-	// Server returns 502 - but the matcher only checks is_transport_error
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		hits.Add(1)
-		w.WriteHeader(http.StatusBadGateway)
-	}))
-	t.Cleanup(server.Close)
-
-	// Only matches transport errors, not response errors
-	retryMatch := caddyhttp.MatcherSets{
-		caddyhttp.MatcherSet{
-			newExpressionMatcher(t, "{http.reverse_proxy.is_transport_error} == true"),
-		},
-	}
-
-	upstreams := []*Upstream{
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-		{Host: new(Host), Dial: server.Listener.Addr().String()},
-	}
-
-	h := minimalHandlerWithRetryMatch(2, retryMatch, upstreams...)
-
-	req := httptest.NewRequest(http.MethodGet, "http://example.com/", nil)
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-
-	_ = h.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	// Should hit only once - is_transport_error is false during response
-	// evaluation so the 502 is NOT retried
-	if hits.Load() != 1 {
-		t.Errorf("upstream hits: got %d, want 1 (is_transport_error should be false for responses)", hits.Load())
-	}
-}
-
-// TestRetryMatchAllowsExpressionMixedWithOtherMatchers verifies that
-// lb_retry_match accepts a block mixing expression with other matchers
-func TestRetryMatchAllowsExpressionMixedWithOtherMatchers(t *testing.T) {
-	tests := []struct {
-		name  string
-		input string
-	}{
-		{
-			name: "expression alone",
-			input: `reverse_proxy localhost:9080 {
-				lb_retry_match {
-					expression ` + "`{rp.status_code} in [502, 503]`" + `
-				}
-			}`,
-		},
-		{
-			name: "method alone",
-			input: `reverse_proxy localhost:9080 {
-				lb_retry_match {
-					method PUT
-				}
-			}`,
-		},
-		{
-			name: "expression mixed with method",
-			input: `reverse_proxy localhost:9080 {
-				lb_retry_match {
-					method POST
-					expression ` + "`{rp.status_code} in [502, 503]`" + `
-				}
-			}`,
-		},
-		{
-			name: "expression mixed with path",
-			input: `reverse_proxy localhost:9080 {
-				lb_retry_match {
-					path /api*
-					expression ` + "`{rp.status_code} == 502`" + `
-				}
-			}`,
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			h := &Handler{}
-			d := caddyfile.NewTestDispenser(tc.input)
-			err := h.UnmarshalCaddyfile(d)
-			if err != nil {
-				t.Errorf("unexpected error: %v", err)
-			}
-		})
-	}
-}
-
-// TestSubrouteErrorFallbackWithBody is similar to TestDialErrorBodyRetry but
-// mimics Subroute's Error handler rather than testing retries specifically
-func TestSubrouteErrorFallbackWithBody(t *testing.T) {
-	// Good upstream: echoes the request body with 200 OK.
-	goodServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		body, err := io.ReadAll(r.Body)
-		if err != nil {
-			http.Error(w, "read body: "+err.Error(), http.StatusInternalServerError)
-			return
-		}
-		w.WriteHeader(http.StatusOK)
-		_, err = w.Write(body)
-		if err != nil {
-			t.Errorf("error writing in good server: %v", err)
-		}
-	}))
-	t.Cleanup(goodServer.Close)
-
-	// Handler which will dial error
-	badProxy := minimalHandler(0, &Upstream{Host: new(Host), Dial: deadUpstreamAddr(t)})
-
-	bodyReader := newCloseOnCloseReader("hello world")
-	req := httptest.NewRequest("POST", "http://localhost/", bodyReader)
-	// httptest.NewRequest wraps the reader in NopCloser; replace
-	// it with our close-aware reader so Close() is propagated.
-	req.Body = bodyReader
-
-	req = prepareTestRequest(req)
-	rec := httptest.NewRecorder()
-	err := badProxy.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-	if err == nil {
-		t.Fatalf("Expected error from badProxy.ServeHTTP")
-	}
-
-	// Simulate the Subroute's Error handler by calling another handler with the
-	// same request and recorder
-	goodProxy := minimalHandler(0, &Upstream{Host: new(Host), Dial: goodServer.Listener.Addr().String()})
-	err = goodProxy.ServeHTTP(rec, req, caddyhttp.HandlerFunc(func(w http.ResponseWriter, r *http.Request) error {
-		return nil
-	}))
-
-	if err != nil {
-		t.Fatalf("Expected no error from goodProxy.ServeHTTP, got: %v", err)
-	}
-	if rec.Code != http.StatusOK {
-		t.Errorf("status: got %d, want %d", rec.Code, http.StatusOK)
-	}
-	expectedBody := "hello world"
-	if rec.Body.String() != expectedBody {
-		t.Errorf("body: got %q, want %q", rec.Body.String(), expectedBody)
-	}
-}

modules/caddyhttp/reverseproxy/reverseproxy.go

@@ -171,12 +171,6 @@ type Handler struct {
 	// forcibly closed at the end of the timeout. Default: no timeout.
 	StreamTimeout caddy.Duration `json:"stream_timeout,omitempty"`
 
-	// The size of the buffer used for each direction of streaming
-	// requests such as WebSockets. If zero, the default size is 32 KiB.
-	// This only affects upgraded bidirectional streams, not normal
-	// request or response buffering.
-	StreamBufferSize int `json:"stream_buffer_size,omitempty"`
-
 	// If nonzero, streaming requests such as WebSockets will not be
 	// closed when the proxy config is unloaded, and instead the stream
 	// will remain open until the delay is complete. In other words,
@@ -449,39 +443,6 @@ func (h *Handler) Cleanup() error {
 	return err
 }
 
-// bodyNopCloserIfNotRead wraps a request body to prevent closing if not read, i.e., when
-// dialing to upstream fails.
-// It will close the body as normal if the body is read.
-type bodyNopCloserIfNotRead struct {
-	io.ReadCloser
-	read int // tracks the number of bytes read, -1 when first Read returns 0, io.EOF
-}
-
-func (b *bodyNopCloserIfNotRead) Read(p []byte) (int, error) {
-	if b.read == -1 {
-		return 0, io.EOF
-	}
-	n, err := b.ReadCloser.Read(p)
-	// first Read returns 0, io.EOF
-	if b.read == 0 && n == 0 && err == io.EOF {
-		b.read = -1
-	} else {
-		b.read += n
-	}
-	return n, err
-}
-
-func (b *bodyNopCloserIfNotRead) Close() error {
-	// don't close the body
-	if b.read == 0 {
-		return nil
-	}
-	// close as usual, when -1, any read will return EOF as the original read will do
-	// in other cases, the read will fail as body is closed because we do not want partial bodies to be sent to the upstream
-	// users can buffer the entire request body to allow the request to be resent
-	return b.ReadCloser.Close()
-}
-
 func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
 	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 
@@ -521,19 +482,20 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyht
 	reqHost := clonedReq.Host
 	reqHeader := clonedReq.Header
 
-	// If the request contained a body, wrap it in io.NopCloser
-	// to prevent Go's transport from closing it on dial errors.
-	// cloneRequest does a shallow copy, so clonedReq.Body and
+	// When retries are configured and there is a body, wrap it in
+	// io.NopCloser to prevent Go's transport from closing it on dial
+	// errors. cloneRequest does a shallow copy, so clonedReq.Body and
 	// r.Body share the same io.ReadCloser — a dial-failure Close()
-	// would kill the original body for all subsequent retry
-	// attempts or subsequent handlers. The real body is closed by
-	// the HTTP server when the handler returns.
+	// would kill the original body for all subsequent retry attempts.
+	// The real body is closed by the HTTP server when the handler
+	// returns.
 	//
 	// If the body was already fully buffered (via request_buffers),
 	// we also extract the buffer so the retry loop can replay it
-	// from the beginning on each attempt. (see #6259, #7546, #7713)
+	// from the beginning on each attempt. (see #6259, #7546)
 	var bufferedReqBody *bytes.Buffer
-	if clonedReq.Body != nil {
+	if clonedReq.Body != nil && h.LoadBalancing != nil &&
+		(h.LoadBalancing.Retries > 0 || h.LoadBalancing.TryDuration > 0) {
 		if reqBodyBuf, ok := clonedReq.Body.(bodyReadCloser); ok && reqBodyBuf.body == nil && reqBodyBuf.buf != nil {
 			bufferedReqBody = reqBodyBuf.buf
 			reqBodyBuf.buf = nil
@@ -543,7 +505,7 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyht
 				bufPool.Put(bufferedReqBody)
 			}()
 		} else {
-			clonedReq.Body = &bodyNopCloserIfNotRead{ReadCloser: clonedReq.Body}
+			clonedReq.Body = io.NopCloser(clonedReq.Body)
 		}
 	}
 
@@ -606,17 +568,6 @@ func (h *Handler) proxyLoopIteration(r *http.Request, origReq *http.Request, w h
 	// get the updated list of upstreams
 	upstreams := h.Upstreams
 	if h.DynamicUpstreams != nil {
-		if retries > 0 {
-			// after a failure (and thus during a retry), give dynamic upstream modules an opportunity
-			// to purge their relevant cache entries so we don't keep retrying bad upstreams
-			if cachingDynamicUpstreams, ok := h.DynamicUpstreams.(CachingUpstreamSource); ok {
-				if err := cachingDynamicUpstreams.ResetCache(r); err != nil {
-					if c := h.logger.Check(zapcore.ErrorLevel, "failed clearing dynamic upstream source's cache"); c != nil {
-						c.Write(zap.Error(err))
-					}
-				}
-			}
-		}
 		dUpstreams, err := h.DynamicUpstreams.GetUpstreams(r)
 		if err != nil {
 			if c := h.logger.Check(zapcore.ErrorLevel, "failed getting dynamic upstreams; falling back to static upstreams"); c != nil {
@@ -713,12 +664,8 @@ func (h *Handler) proxyLoopIteration(r *http.Request, origReq *http.Request, w h
 		return true, succ.error
 	}
 
-	// remember this failure (if enabled); response-based retries
-	// are not counted as failures since the upstream did respond
-	// successfully - only the response content triggered a retry
-	if _, isRetryableResponse := proxyErr.(retryableResponseError); !isRetryableResponse {
-		h.countFailure(upstream)
-	}
+	// remember this failure (if enabled)
+	h.countFailure(upstream)
 
 	// if we've tried long enough, break
 	if !h.LoadBalancing.tryAgain(h.ctx, start, retries, proxyErr, r, h.logger) {
@@ -1102,45 +1049,6 @@ func (h *Handler) reverseProxy(rw http.ResponseWriter, req *http.Request, origRe
 		res.Body, _ = h.bufferedBody(res.Body, h.ResponseBuffers)
 	}
 
-	// set response placeholders so they can be used in retry match
-	// expressions and handle_response routes; clear stale header
-	// placeholders from a previous attempt first so they don't
-	// leak into the next retry evaluation
-	repl.DeleteByPrefix("http.reverse_proxy.header.")
-	for field, value := range res.Header {
-		repl.Set("http.reverse_proxy.header."+field, strings.Join(value, ","))
-	}
-	repl.Set("http.reverse_proxy.status_code", res.StatusCode)
-	repl.Set("http.reverse_proxy.status_text", res.Status)
-
-	// check if the response matches a retry match entry; if so,
-	// close the body and return a retryable error so the request
-	// is retried with the next upstream. Only evaluate matcher sets
-	// that contain at least one expression matcher, since those are
-	// the ones that can reference response data ({rp.status_code},
-	// {rp.header.*}). Pure request-only matchers (method, path, etc.)
-	// are skipped to avoid retrying every response that matches a
-	// request condition
-	if h.LoadBalancing != nil && len(h.LoadBalancing.RetryMatch) > 0 {
-		for _, matcherSet := range h.LoadBalancing.RetryMatch {
-			if !matcherSetHasExpressionMatcher(matcherSet) {
-				continue
-			}
-			match, err := matcherSet.MatchWithError(req)
-			if err != nil {
-				h.logger.Error("error matching request for retry", zap.Error(err))
-				break
-			}
-			if match {
-				res.Body.Close()
-				return retryableResponseError{
-					error:      fmt.Errorf("upstream response matched retry_match (status %d)", res.StatusCode),
-					statusCode: res.StatusCode,
-				}
-			}
-		}
-	}
-
 	// see if any response handler is configured for this response from the backend
 	for i, rh := range h.HandleResponse {
 		if rh.Match != nil && !rh.Match.Match(res.StatusCode, res.Header) {
@@ -1160,6 +1068,14 @@ func (h *Handler) reverseProxy(rw http.ResponseWriter, req *http.Request, origRe
 			break
 		}
 
+		// set up the replacer so that parts of the original response can be
+		// used for routing decisions
+		for field, value := range res.Header {
+			repl.Set("http.reverse_proxy.header."+field, strings.Join(value, ","))
+		}
+		repl.Set("http.reverse_proxy.status_code", res.StatusCode)
+		repl.Set("http.reverse_proxy.status_text", res.Status)
+
 		if c := logger.Check(zapcore.DebugLevel, "handling response"); c != nil {
 			c.Write(zap.Int("handler", i))
 		}
@@ -1344,29 +1260,18 @@ func (lb LoadBalancing) tryAgain(ctx caddy.Context, start time.Time, retries int
 	// specifically a dialer error, we need to be careful
 	if proxyErr != nil {
 		_, isDialError := proxyErr.(DialError)
-		_, isRetryableResponse := proxyErr.(retryableResponseError)
 		herr, isHandlerError := proxyErr.(caddyhttp.HandlerError)
 
 		// if the error occurred after a connection was established,
 		// we have to assume the upstream received the request, and
 		// retries need to be carefully decided, because some requests
-		// are not idempotent; retryableResponseError is excluded here
-		// because its retry decision was already made in reverseProxy()
-		// when the response matchers were evaluated
-		if !isDialError && !isRetryableResponse && (!isHandlerError || !errors.Is(herr, errNoUpstream)) {
+		// are not idempotent
+		if !isDialError && (!isHandlerError || !errors.Is(herr, errNoUpstream)) {
 			if lb.RetryMatch == nil && req.Method != "GET" {
 				// by default, don't retry requests if they aren't GET
 				return false
 			}
 
-			// set transport error flag so CEL expressions can use
-			// {rp.is_transport_error} to decide whether to retry
-			repl, _ := req.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
-			if repl != nil {
-				repl.Set("http.reverse_proxy.is_transport_error", true)
-				defer repl.Delete("http.reverse_proxy.is_transport_error")
-			}
-
 			match, err := lb.RetryMatch.AnyMatchWithError(req)
 			if err != nil {
 				logger.Error("error matching request for retry", zap.Error(err))
@@ -1596,12 +1501,6 @@ func removeConnectionHeaders(h http.Header) {
 
 // statusError returns an error value that has a status code.
 func statusError(err error) error {
-	// if a response-based retry was exhausted, use the actual upstream
-	// status code instead of a generic 502
-	if rre, ok := err.(retryableResponseError); ok {
-		return caddyhttp.Error(rre.statusCode, err)
-	}
-
 	// errors proxying usually mean there is a problem with the upstream(s)
 	statusCode := http.StatusBadGateway
 
@@ -1653,15 +1552,13 @@ type LoadBalancing struct {
 	// to spin if all backends are down and latency is very low.
 	TryInterval caddy.Duration `json:"try_interval,omitempty"`
 
-	// A list of matcher sets that controls retry behavior. Matcher sets
-	// without expression matchers (e.g. method, path) restrict which
-	// requests are retried on transport errors - if unspecified, only
-	// GET requests will be retried. Matcher sets with CEL expression
-	// matchers are evaluated against upstream responses and can
-	// reference {rp.status_code}, {rp.header.*}, and
-	// {rp.is_transport_error}. Dial errors are always retried
-	// regardless of this setting. Retries use the next available
-	// upstream per the load balancing policy
+	// A list of matcher sets that restricts with which requests retries are
+	// allowed. A request must match any of the given matcher sets in order
+	// to be retried if the connection to the upstream succeeded but the
+	// subsequent round-trip failed. If the connection to the upstream failed,
+	// a retry is always allowed. If unspecified, only GET requests will be
+	// allowed to be retried. Note that a retry is done with the next available
+	// host according to the load balancing policy.
 	RetryMatchRaw caddyhttp.RawMatcherSets `json:"retry_match,omitempty" caddy:"namespace=http.matchers"`
 
 	SelectionPolicy Selector              `json:"-"`
@@ -1683,28 +1580,10 @@ type Selector interface {
 // may be called during each retry, multiple times per request, and as
 // such, needs to be instantaneous. The returned slice will not be
 // modified.
-//
-// For upstream sources that cache results, implement the
-// [CachingUpstreamSource] interface for optimal performance.
 type UpstreamSource interface {
 	GetUpstreams(*http.Request) ([]*Upstream, error)
 }
 
-// CachingUpstreamSource is an upstream source that caches its upstreams.
-// The relevant cache entry can be cleared/reset for a given request during
-// retries if a request fails. This can help ensure that failing backends
-// are not retried.
-//
-// EXPERIMENTAL: Subject to change.
-type CachingUpstreamSource interface {
-	UpstreamSource
-
-	// ResetCache clears any cache entry related to the given request.
-	// The next time GetUpstreams is called, it should have new upstream
-	// information for the given request.
-	ResetCache(*http.Request) error
-}
-
 // Hop-by-hop headers. These are removed when sent to the backend.
 // As of RFC 7230, hop-by-hop headers are required to appear in the
 // Connection header field. These are the headers defined by the
@@ -1777,34 +1656,10 @@ type RequestHeaderOpsTransport interface {
 	RequestHeaderOps() *headers.HeaderOps
 }
 
-// matcherSetHasExpressionMatcher reports whether a matcher set contains
-// at least one expression matcher. Expression matchers can reference
-// response data via placeholders like {rp.status_code}. Matcher sets
-// without expression matchers only test request properties and should
-// not be evaluated for response-based retry decisions
-func matcherSetHasExpressionMatcher(matcherSet caddyhttp.MatcherSet) bool {
-	for _, m := range matcherSet {
-		if _, ok := m.(*caddyhttp.MatchExpression); ok {
-			return true
-		}
-	}
-	return false
-}
-
 // roundtripSucceededError is an error type that is returned if the
 // roundtrip succeeded, but an error occurred after-the-fact.
 type roundtripSucceededError struct{ error }
 
-// retryableResponseError is returned when the upstream response matched
-// a retry_match entry, indicating the request should be retried with the
-// next upstream. It preserves the original status code so that if retries
-// are exhausted, the actual upstream status is reported instead of a
-// generic 502
-type retryableResponseError struct {
-	error
-	statusCode int
-}
-
 // bodyReadCloser is a reader that, upon closing, will return
 // its buffer to the pool and close the underlying body reader.
 type bodyReadCloser struct {

modules/caddyhttp/reverseproxy/selectionpolicies.go

@@ -664,12 +664,10 @@ func (s CookieHashSelection) Select(pool UpstreamPool, req *http.Request, w http
 			return upstream
 		}
 		cookie := &http.Cookie{
-			Name:     s.Name,
-			Value:    sha,
-			Path:     "/",
-			Secure:   false,
-			HttpOnly: true,
-			SameSite: http.SameSiteLaxMode,
+			Name:   s.Name,
+			Value:  sha,
+			Path:   "/",
+			Secure: false,
 		}
 		isProxyHttps := false
 		if trusted, ok := caddyhttp.GetVar(req.Context(), caddyhttp.TrustedProxyVarKey).(bool); ok && trusted {

modules/caddyhttp/reverseproxy/selectionpolicies_test.go

@@ -568,7 +568,7 @@ func TestQueryHashPolicy(t *testing.T) {
 	pool[1].setHealthy(false)
 	h = queryPolicy.Select(pool, request, nil)
 	if h != nil {
-		t.Error("Expected query policy host to be nil.")
+		t.Error("Expected query policy policy host to be nil.")
 	}
 
 	request = httptest.NewRequest(http.MethodGet, "/?foo=aa11&foo=bb22", nil)
@@ -630,7 +630,7 @@ func TestURIHashPolicy(t *testing.T) {
 	pool[1].setHealthy(false)
 	h = uriPolicy.Select(pool, request, nil)
 	if h != nil {
-		t.Error("Expected uri policy host to be nil.")
+		t.Error("Expected uri policy policy host to be nil.")
 	}
 }
 

modules/caddyhttp/reverseproxy/streaming.go

@@ -204,12 +204,7 @@ func (h *Handler) handleUpgradeResponse(logger *zap.Logger, wg *sync.WaitGroup,
 	defer deleteFrontConn()
 	defer deleteBackConn()
 
-	spc := switchProtocolCopier{
-		user:       conn,
-		backend:    backConn,
-		wg:         wg,
-		bufferSize: h.StreamBufferSize,
-	}
+	spc := switchProtocolCopier{user: conn, backend: backConn, wg: wg}
 
 	// setup the timeout if requested
 	var timeoutc <-chan time.Time
@@ -641,29 +636,20 @@ func (m *maxLatencyWriter) stop() {
 type switchProtocolCopier struct {
 	user, backend io.ReadWriteCloser
 	wg            *sync.WaitGroup
-	bufferSize    int
 }
 
 func (c switchProtocolCopier) copyFromBackend(errc chan<- error) {
-	_, err := io.CopyBuffer(c.user, c.backend, c.buffer())
+	_, err := io.Copy(c.user, c.backend)
 	errc <- err
 	c.wg.Done()
 }
 
 func (c switchProtocolCopier) copyToBackend(errc chan<- error) {
-	_, err := io.CopyBuffer(c.backend, c.user, c.buffer())
+	_, err := io.Copy(c.backend, c.user)
 	errc <- err
 	c.wg.Done()
 }
 
-func (c switchProtocolCopier) buffer() []byte {
-	size := c.bufferSize
-	if size <= 0 {
-		size = defaultBufferSize
-	}
-	return make([]byte, size)
-}
-
 var streamingBufPool = sync.Pool{
 	New: func() any {
 		// The Pool's New function should generally only return pointer

modules/caddyhttp/reverseproxy/streaming_test.go

@@ -2,10 +2,8 @@ package reverseproxy
 
 import (
 	"bytes"
-	"io"
 	"net/http/httptest"
 	"strings"
-	"sync"
 	"testing"
 
 	"github.com/caddyserver/caddy/v2"
@@ -36,47 +34,3 @@ func TestHandlerCopyResponse(t *testing.T) {
 		}
 	}
 }
-
-func TestSwitchProtocolCopierBufferSize(t *testing.T) {
-	var wg sync.WaitGroup
-	var errc = make(chan error, 1)
-	var dst bytes.Buffer
-
-	copier := switchProtocolCopier{
-		user:       nopReadWriteCloser{Reader: strings.NewReader("hello")},
-		backend:    nopReadWriteCloser{Writer: &dst},
-		wg:         &wg,
-		bufferSize: 7,
-	}
-
-	buf := copier.buffer()
-	if got := len(buf); got != 7 {
-		t.Fatalf("buffer len = %d, want 7", got)
-	}
-
-	wg.Add(1)
-	go copier.copyToBackend(errc)
-	wg.Wait()
-
-	if err := <-errc; err != nil {
-		t.Fatalf("copyToBackend() error = %v", err)
-	}
-	if got := dst.String(); got != "hello" {
-		t.Fatalf("copied data = %q, want %q", got, "hello")
-	}
-}
-
-func TestSwitchProtocolCopierDefaultBufferSize(t *testing.T) {
-	copier := switchProtocolCopier{}
-	buf := copier.buffer()
-	if got := len(buf); got != defaultBufferSize {
-		t.Fatalf("buffer len = %d, want %d", got, defaultBufferSize)
-	}
-}
-
-type nopReadWriteCloser struct {
-	io.Reader
-	io.Writer
-}
-
-func (nopReadWriteCloser) Close() error { return nil }

modules/caddyhttp/reverseproxy/upstreams.go

@@ -119,18 +119,6 @@ func (su *SRVUpstreams) Provision(ctx caddy.Context) error {
 	return nil
 }
 
-func (su *SRVUpstreams) ResetCache(r *http.Request) error {
-	srvsMu.Lock()
-	if r == nil {
-		srvs = make(map[string]srvLookup)
-	} else {
-		suAddr, _, _, _ := su.expandedAddr(r)
-		delete(srvs, suAddr)
-	}
-	srvsMu.Unlock()
-	return nil
-}
-
 func (su SRVUpstreams) GetUpstreams(r *http.Request) ([]*Upstream, error) {
 	suAddr, service, proto, name := su.expandedAddr(r)
 
@@ -566,9 +554,8 @@ var (
 
 // Interface guards
 var (
-	_ caddy.Provisioner     = (*SRVUpstreams)(nil)
-	_ UpstreamSource        = (*SRVUpstreams)(nil)
-	_ CachingUpstreamSource = (*SRVUpstreams)(nil)
-	_ caddy.Provisioner     = (*AUpstreams)(nil)
-	_ UpstreamSource        = (*AUpstreams)(nil)
+	_ caddy.Provisioner = (*SRVUpstreams)(nil)
+	_ UpstreamSource    = (*SRVUpstreams)(nil)
+	_ caddy.Provisioner = (*AUpstreams)(nil)
+	_ UpstreamSource    = (*AUpstreams)(nil)
 )

modules/caddyhttp/rewrite/rewrite.go

@@ -211,7 +211,12 @@ func (rewr Rewrite) Rewrite(r *http.Request, repl *caddy.Replacer) bool {
 		var newPath, newQuery, newFrag string
 
 		if path != "" {
-			path = escapePathPlaceholders(path, r, repl)
+			// replace the `path` placeholder to escaped path
+			pathPlaceholder := "{http.request.uri.path}"
+			if strings.Contains(path, pathPlaceholder) {
+				path = strings.ReplaceAll(path, pathPlaceholder, r.URL.EscapedPath())
+			}
+
 			newPath = repl.ReplaceAll(path, "")
 		}
 
@@ -295,31 +300,6 @@ func (rewr Rewrite) Rewrite(r *http.Request, repl *caddy.Replacer) bool {
 	return r.Method != oldMethod || r.RequestURI != oldURI
 }
 
-func escapePathPlaceholders(path string, r *http.Request, repl *caddy.Replacer) string {
-	// Replace path-valued placeholders in escaped form before the URI is parsed,
-	// otherwise literal '?' and '%' bytes from the path can be interpreted as URI
-	// delimiters or percent-escape sequences during the rewrite.
-	pathPlaceholder := "{http.request.uri.path}"
-	if strings.Contains(path, pathPlaceholder) {
-		path = strings.ReplaceAll(path, pathPlaceholder, r.URL.EscapedPath())
-	}
-
-	fileMatchRelativePlaceholder := "{http.matchers.file.relative}"
-	if strings.Contains(path, fileMatchRelativePlaceholder) {
-		if val, ok := repl.Get("http.matchers.file.relative"); ok {
-			if relativePath, ok := val.(string); ok {
-				path = strings.ReplaceAll(path, fileMatchRelativePlaceholder, escapePathPreservingSlashes(relativePath))
-			}
-		}
-	}
-
-	return path
-}
-
-func escapePathPreservingSlashes(path string) string {
-	return strings.ReplaceAll(url.PathEscape(path), "%2F", "/")
-}
-
 // buildQueryString takes an input query string and
 // performs replacements on each component, returning
 // the resulting query string. This function appends
@@ -549,14 +529,7 @@ func (q *queryOps) do(r *http.Request, repl *caddy.Replacer) {
 		if key == "" || val == "" {
 			continue
 		}
-		if key == val {
-			continue
-		}
-		originalValues, ok := query[key]
-		if !ok {
-			continue
-		}
-		query[val] = originalValues
+		query[val] = query[key]
 		delete(query, key)
 	}
 

modules/caddyhttp/rewrite/rewrite_test.go

@@ -16,7 +16,6 @@ package rewrite
 
 import (
 	"net/http"
-	"reflect"
 	"regexp"
 	"testing"
 
@@ -398,55 +397,6 @@ func TestRewrite(t *testing.T) {
 	}
 }
 
-func TestQueryOpsRenameNoOpCases(t *testing.T) {
-	repl := caddy.NewReplacer()
-
-	for i, tc := range []struct {
-		input  *http.Request
-		expect map[string][]string
-		ops    *queryOps
-	}{
-		{
-			ops: &queryOps{
-				Rename: []queryOpsArguments{{Key: "ID", Val: "id"}},
-			},
-			input:  newRequest(t, "GET", "/?page=test&id=5&test=100"),
-			expect: map[string][]string{"id": {"5"}, "page": {"test"}, "test": {"100"}},
-		},
-		{
-			ops: &queryOps{
-				Rename: []queryOpsArguments{{Key: "id", Val: "id"}},
-			},
-			input:  newRequest(t, "GET", "/?page=test&id=5&test=100"),
-			expect: map[string][]string{"id": {"5"}, "page": {"test"}, "test": {"100"}},
-		},
-		{
-			ops: &queryOps{
-				Rename: []queryOpsArguments{{Key: "ID", Val: "id"}},
-			},
-			input:  newRequest(t, "GET", "/?page=test&ID=5&test=100"),
-			expect: map[string][]string{"id": {"5"}, "page": {"test"}, "test": {"100"}},
-		},
-		{
-			ops: &queryOps{
-				Rename: []queryOpsArguments{{Key: "ID", Val: "id"}},
-			},
-			input:  newRequest(t, "GET", "/?page=test&ID=5&id=7&test=100"),
-			expect: map[string][]string{"id": {"5"}, "page": {"test"}, "test": {"100"}},
-		},
-	} {
-		repl.Set("http.request.uri", tc.input.RequestURI)
-		repl.Set("http.request.uri.path", tc.input.URL.Path)
-		repl.Set("http.request.uri.query", tc.input.URL.RawQuery)
-
-		tc.ops.do(tc.input, repl)
-
-		if actual := tc.input.URL.Query(); !reflect.DeepEqual(tc.expect, map[string][]string(actual)) {
-			t.Errorf("Test %d: Expected query=%v but got %v", i, tc.expect, actual)
-		}
-	}
-}
-
 func newRequest(t *testing.T, method, uri string) *http.Request {
 	req, err := http.NewRequest(method, uri, nil)
 	if err != nil {

modules/caddyhttp/routes.go

@@ -18,7 +18,6 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
-	"slices"
 	"strings"
 
 	"github.com/caddyserver/caddy/v2"
@@ -242,8 +241,8 @@ func (routes RouteList) Compile(next Handler) Handler {
 		mid = append(mid, wrapRoute(route))
 	}
 	stack := next
-	for _, middleware := range slices.Backward(mid) {
-		stack = middleware(stack)
+	for i := len(mid) - 1; i >= 0; i-- {
+		stack = mid[i](stack)
 	}
 	return stack
 }
@@ -306,8 +305,8 @@ func wrapRoute(route Route) Middleware {
 			}
 
 			// compile this route's handler stack
-			for _, middleware := range slices.Backward(route.middleware) {
-				nextCopy = middleware(nextCopy)
+			for i := len(route.middleware) - 1; i >= 0; i-- {
+				nextCopy = route.middleware[i](nextCopy)
 			}
 
 			// Apply metrics instrumentation once for the entire route,

modules/caddyhttp/server.go

@@ -28,7 +28,7 @@ import (
 	"runtime"
 	"slices"
 	"strings"
-	"sync/atomic"
+	"sync"
 	"time"
 
 	"github.com/caddyserver/certmagic"
@@ -291,7 +291,8 @@ type Server struct {
 
 	trustedProxies IPRangeSource
 
-	shutdownAt atomic.Pointer[time.Time]
+	shutdownAt   time.Time
+	shutdownAtMu *sync.RWMutex
 
 	// registered callback functions
 	connStateFuncs   []func(net.Conn, http.ConnState)
@@ -300,8 +301,6 @@ type Server struct {
 	onStopFuncs      []func(context.Context) error // TODO: Experimental (Nov. 2023)
 }
 
-var defaultProtocols = []string{"h1", "h2", "h3"}
-
 var (
 	ServerHeader = "Caddy"
 	serverHeader = []string{ServerHeader}
@@ -901,56 +900,20 @@ func (s *Server) logRequest(
 // protocol returns true if the protocol proto is configured/enabled.
 func (s *Server) protocol(proto string) bool {
 	if s.ListenProtocols == nil {
-		return slices.Contains(s.protocolsWithDefaults(), proto)
-	}
-
-	for _, lnProtocols := range s.ListenProtocols {
-		if slices.Contains(s.listenerProtocolsWithDefaults(lnProtocols), proto) {
+		if slices.Contains(s.Protocols, proto) {
 			return true
 		}
-	}
-
-	return false
-}
-
-func (s *Server) protocolsWithDefaults() []string {
-	if len(s.Protocols) == 0 {
-		return defaultProtocols
-	}
-	return s.Protocols
-}
-
-func (s *Server) listenerProtocolsWithDefaults(lnProtocols []string) []string {
-	serverProtocols := s.protocolsWithDefaults()
-	if len(lnProtocols) == 0 {
-		return serverProtocols
-	}
-
-	lnProtocolsDefault := false
-	lnProtocolsInclude := make([]string, 0, len(lnProtocols)+len(serverProtocols))
-	srvProtocolsInclude := make(map[string]struct{}, len(serverProtocols))
-	for _, srvProtocol := range serverProtocols {
-		srvProtocolsInclude[srvProtocol] = struct{}{}
-	}
-
-	for _, lnProtocol := range lnProtocols {
-		if lnProtocol == "" {
-			lnProtocolsDefault = true
-			continue
-		}
-		lnProtocolsInclude = append(lnProtocolsInclude, lnProtocol)
-		delete(srvProtocolsInclude, lnProtocol)
-	}
-
-	if lnProtocolsDefault {
-		for _, srvProtocol := range serverProtocols {
-			if _, ok := srvProtocolsInclude[srvProtocol]; ok {
-				lnProtocolsInclude = append(lnProtocolsInclude, srvProtocol)
+	} else {
+		for _, lnProtocols := range s.ListenProtocols {
+			for _, lnProtocol := range lnProtocols {
+				if lnProtocol == "" && slices.Contains(s.Protocols, proto) || lnProtocol == proto {
+					return true
+				}
 			}
 		}
 	}
 
-	return lnProtocolsInclude
+	return false
 }
 
 // Listeners returns the server's listeners. These are active listeners,
@@ -972,10 +935,10 @@ func PrepareRequest(r *http.Request, repl *caddy.Replacer, w http.ResponseWriter
 	ctx = context.WithValue(ctx, ServerCtxKey, s)
 
 	trusted, clientIP := determineTrustedProxy(r, s)
-	ctx = context.WithValue(ctx, VarsCtxKey, map[string]any{
-		TrustedProxyVarKey: trusted,
-		ClientIPVarKey:     clientIP,
-	})
+	varsMap := &sync.Map{}
+	varsMap.Store(TrustedProxyVarKey, trusted)
+	varsMap.Store(ClientIPVarKey, clientIP)
+	ctx = context.WithValue(ctx, VarsCtxKey, varsMap)
 
 	ctx = context.WithValue(ctx, routeGroupCtxKey, make(map[string]struct{}))
 
@@ -1123,11 +1086,11 @@ func strictUntrustedClientIp(r *http.Request, headers []string, trusted []netip.
 	for _, headerName := range headers {
 		parts := strings.Split(strings.Join(r.Header.Values(headerName), ","), ",")
 
-		for _, part := range slices.Backward(parts) {
+		for i := len(parts) - 1; i >= 0; i-- {
 			// Some proxies may retain the port number, so split if possible
-			host, _, err := net.SplitHostPort(part)
+			host, _, err := net.SplitHostPort(parts[i])
 			if err != nil {
-				host = part
+				host = parts[i]
 			}
 
 			// Remove any zone identifier from the IP address

modules/caddyhttp/templates/templates.go

@@ -36,22 +36,13 @@ func init() {
 // Templates is a middleware which executes response bodies as Go templates.
 // The syntax is documented in the Go standard library's
 // [text/template package](https://golang.org/pkg/text/template/).
-// Note that ANY response body that matches and qualifies may be evaluated,
-// even if it comes from a proxied backend.
 //
-// ⚠️ Template functions/actions can access the environment, files on disk,
-// and make HTTP requests. This is extremely useful, but you need to make
-// sure templates are only evaluated on content that you trust, control, or
-// at least sanitize properly.
+// ⚠️ Template functions/actions are still experimental, so they are subject to change.
 //
-// ⚠️ Templates are still experimental, so they are subject to change.
+// Custom template functions can be registered by creating a plugin module under the `http.handlers.templates.functions.*` namespace that implements the `CustomFunctions` interface.
 //
 // [All Sprig functions](https://masterminds.github.io/sprig/) are supported.
 //
-// Custom template functions can be registered by creating a plugin module
-// under the `http.handlers.templates.functions.*` namespace that implements
-// the `CustomFunctions` interface.
-//
 // In addition to the standard functions and the Sprig library, Caddy adds
 // extra functions and data that are available to a template:
 //
@@ -171,25 +162,6 @@ func init() {
 // {{listFiles "/mydir"}}
 // ```
 //
-// ##### `fileExists`
-//
-// Returns true if the given file name, relative to the template context's file root,
-// can be opened successfully.
-//
-// ```
-// {{fileExists "path/to/file.html"}}
-// ```
-//
-// ##### `fileStat`
-//
-// Returns [FileInfo](https://pkg.go.dev/io/fs#FileInfo) using [Stat](https://pkg.go.dev/io/fs#Stat)
-// on the given file name, relative to the template context's file root.
-//
-// ```
-// {{$css := fileStat "css/style.css" -}}
-// <link rel="stylesheet" href="/css/style.css?v={{ $css.ModTime.Unix }}">
-// ```
-//
 // ##### `markdown`
 //
 // Renders the given Markdown text as HTML and returns it. This uses the

modules/caddyhttp/tracing/tracer.go

@@ -21,6 +21,7 @@ import (
 )
 
 const (
+	webEngineName                = "Caddy"
 	defaultSpanName              = "handler"
 	nextCallCtxKey  caddy.CtxKey = "nextCall"
 )
@@ -57,7 +58,7 @@ func newOpenTelemetryWrapper(
 	}
 
 	version, _ := caddy.Version()
-	res, err := ot.newResource(caddyhttp.ServerHeader, version)
+	res, err := ot.newResource(webEngineName, version)
 	if err != nil {
 		return ot, fmt.Errorf("creating resource error: %w", err)
 	}