reverseproxy: Test that WebSockets + unix-sockets works

.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
@@ -212,8 +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.
@@ -718,7 +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
 							}
@@ -747,19 +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")
@@ -815,7 +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(
@@ -1076,9 +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{
@@ -1161,20 +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
@@ -1236,12 +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)
 					}
@@ -1341,7 +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)
@@ -662,99 +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
@@ -1107,47 +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

@@ -766,7 +766,7 @@ 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
 	}
 
@@ -845,11 +845,11 @@ 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/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,
@@ -1053,7 +1068,7 @@ 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/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

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/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/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_handle_response.caddyfiletest

@@ -11,9 +11,7 @@ reverse_proxy 127.0.0.1:65535 {
 
 	@accel header X-Accel-Redirect *
 	handle_response @accel {
-		rewrite * {rp.header.X-Accel-Redirect} {
-			force_modify_query
-		}
+		respond "Header X-Accel-Redirect!"
 	}
 
 	@another {
@@ -106,12 +104,10 @@ reverse_proxy 127.0.0.1:65535 {
 											},
 											"routes": [
 												{
-													"group": "group0",
 													"handle": [
 														{
-															"force_modify_query": true,
-															"handler": "rewrite",
-															"uri": "{http.reverse_proxy.header.X-Accel-Redirect}"
+															"body": "Header X-Accel-Redirect!",
+															"handler": "static_response"
 														}
 													]
 												}

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/reverseproxy_test.go

@@ -1,13 +1,17 @@
 package integration
 
 import (
+	"bufio"
+	"crypto/sha1"
+	"encoding/base64"
 	"fmt"
+	"io"
 	"net"
 	"net/http"
+	"net/textproto"
 	"os"
 	"runtime"
 	"strings"
-	"sync/atomic"
 	"testing"
 
 	"github.com/caddyserver/caddy/v2/caddytest"
@@ -564,232 +568,128 @@ 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)
-		}),
+func TestReverseProxyWebSocketUpgradeUnixSocket(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.SkipNow()
 	}
-	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")
+	f, err := os.CreateTemp("", "*.sock")
 	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
+		t.Fatalf("failed to create temporary socket file: %v", err)
 	}
-	go goodSrv.Serve(goodLn)
-	t.Cleanup(func() { goodSrv.Close(); goodLn.Close() })
+	_ = os.Remove(f.Name())
+	socketName := f.Name()
 
-	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]`"+`
+	backend := http.Server{
+		Handler: http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+			if req.URL.Path != "/ws" {
+				http.NotFound(w, req)
+				return
 			}
-		}
-	}
-	`, 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\"`"+`
+			if !strings.EqualFold(req.Header.Get("Upgrade"), "websocket") ||
+				!strings.Contains(strings.ToLower(req.Header.Get("Connection")), "upgrade") {
+				http.Error(w, "missing websocket upgrade headers", http.StatusBadRequest)
+				return
 			}
-		}
-	}
-	`, 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]`"+`
+			wsKey := req.Header.Get("Sec-WebSocket-Key")
+			if wsKey == "" {
+				http.Error(w, "missing Sec-WebSocket-Key", http.StatusBadRequest)
+				return
 			}
-		}
-	}
-	`, 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")
+			hj, ok := w.(http.Hijacker)
+			if !ok {
+				http.Error(w, "hijacker not supported", http.StatusInternalServerError)
+				return
+			}
 
-	// /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()
+			conn, brw, err := hj.Hijack()
 			if err != nil {
 				return
 			}
-			conn.Close()
-		}
-	}()
+			defer conn.Close()
+
+			_, _ = brw.WriteString("HTTP/1.1 101 Switching Protocols\r\n")
+			_, _ = brw.WriteString("Upgrade: websocket\r\n")
+			_, _ = brw.WriteString("Connection: Upgrade\r\n")
+			_, _ = brw.WriteString("Sec-WebSocket-Accept: " + computeWebSocketAccept(wsKey) + "\r\n")
+			_, _ = brw.WriteString("\r\n")
+			_ = brw.Flush()
+		}),
+	}
+
+	unixListener, err := net.Listen("unix", socketName)
+	if err != nil {
+		t.Fatalf("failed to listen on unix socket: %v", err)
+	}
+	go backend.Serve(unixListener)
+	t.Cleanup(func() {
+		_ = backend.Close()
+		_ = unixListener.Close()
+		_ = os.Remove(socketName)
+	})
+	runtime.Gosched()
 
 	tester := caddytest.NewTester(t)
 	tester.InitServer(fmt.Sprintf(`
 	{
 		skip_install_trust
 		admin localhost:2999
-		http_port 9080
-		https_port 9443
+		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]`"+`
-			}
-		}
+		reverse_proxy unix/%s
 	}
-	`, goodLn.Addr().String(), brokenLn.Addr().String()), "caddyfile")
+	`, socketName), "caddyfile")
 
-	// Transport error on broken upstream should be retried to good upstream
-	tester.AssertGetResponse("http://localhost:9080/", 200, "ok")
+	conn, err := net.Dial("tcp", "127.0.0.1:9080")
+	if err != nil {
+		t.Fatalf("failed to dial caddy listener: %v", err)
+	}
+	defer conn.Close()
+
+	wsKey := "dGhlIHNhbXBsZSBub25jZQ=="
+	request := strings.Join([]string{
+		"GET /ws HTTP/1.1",
+		"Host: localhost:9080",
+		"Connection: Upgrade",
+		"Upgrade: websocket",
+		"Sec-WebSocket-Version: 13",
+		"Sec-WebSocket-Key: " + wsKey,
+		"",
+		"",
+	}, "\r\n")
+
+	if _, err := io.WriteString(conn, request); err != nil {
+		t.Fatalf("failed to send websocket handshake request: %v", err)
+	}
+
+	tpr := textproto.NewReader(bufio.NewReader(conn))
+	statusLine, err := tpr.ReadLine()
+	if err != nil {
+		t.Fatalf("failed reading handshake status line: %v", err)
+	}
+	if !strings.Contains(statusLine, "101") || !strings.Contains(strings.ToLower(statusLine), "switching protocols") {
+		t.Fatalf("unexpected status line: %q", statusLine)
+	}
+
+	headers, err := tpr.ReadMIMEHeader()
+	if err != nil {
+		t.Fatalf("failed reading handshake headers: %v", err)
+	}
+	if !strings.EqualFold(headers.Get("Upgrade"), "websocket") {
+		t.Fatalf("unexpected Upgrade header: %q", headers.Get("Upgrade"))
+	}
+	if !strings.Contains(strings.ToLower(headers.Get("Connection")), "upgrade") {
+		t.Fatalf("unexpected Connection header: %q", headers.Get("Connection"))
+	}
+}
+
+func computeWebSocketAccept(wsKey string) string {
+	h := sha1.Sum([]byte(wsKey + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"))
+	return base64.StdEncoding.EncodeToString(h[:])
 }

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

@@ -4,12 +4,12 @@ go 1.25.0
 
 require (
 	github.com/BurntSushi/toml v1.6.0
-	github.com/DeRuina/timberjack v1.4.2
+	github.com/DeRuina/timberjack v1.4.1
 	github.com/KimMachineGun/automemlimit v0.7.5
 	github.com/Masterminds/sprig/v3 v3.3.0
 	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
@@ -30,19 +30,17 @@ 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 v0.65.0
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0
-	go.opentelemetry.io/contrib/propagators/autoprop v0.65.0
+	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 v0.77.1
+	go.step.sm/crypto v0.77.2
 	go.uber.org/automaxprocs v1.6.0
 	go.uber.org/zap v1.27.1
 	go.uber.org/zap/exp v0.3.0
 	golang.org/x/crypto v0.50.0
-	golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541
+	golang.org/x/crypto/x509roots/fallback v0.0.0-20260323153451-8400f4a93807
 	golang.org/x/net v0.53.0
 	golang.org/x/sync v0.20.0
 	golang.org/x/term v0.42.0
@@ -70,9 +68,9 @@ require (
 	github.com/google/go-tspi v0.3.0 // indirect
 	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.14 // indirect
-	github.com/googleapis/gax-go/v2 v2.18.0 // indirect
+	github.com/googleapis/gax-go/v2 v2.19.0 // 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
@@ -89,6 +87,7 @@ 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/bridges/prometheus v0.68.0 // 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
@@ -105,13 +104,14 @@ require (
 	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.opentelemetry.io/otel/sdk/metric v1.43.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.4 // 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 v0.271.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260401024825-9d38bb4040a9 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260401024825-9d38bb4040a9 // indirect
+	google.golang.org/api v0.272.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d // indirect
 	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 // indirect
 )
 
@@ -168,10 +168,10 @@ require (
 	go.opentelemetry.io/otel/trace v1.43.0
 	go.opentelemetry.io/proto/otlp v1.10.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/mod v0.35.0 // indirect
+	golang.org/x/mod v0.34.0 // indirect
 	golang.org/x/sys v0.43.0
-	golang.org/x/text v0.36.0 // indirect
-	golang.org/x/tools v0.44.0 // indirect
+	golang.org/x/text v0.36.0
+	golang.org/x/tools v0.43.0 // indirect
 	google.golang.org/grpc v1.80.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 	howett.net/plist v1.0.0 // indirect

go.sum

@@ -28,8 +28,8 @@ github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03
 github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk=
 github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
-github.com/DeRuina/timberjack v1.4.2 h1:4bKlzhKdsR+2oNkgef9mqb4n11ICow8VK88RfzJPzN8=
-github.com/DeRuina/timberjack v1.4.2/go.mod h1:RLoeQrwrCGIEF8gO5nV5b/gMD0QIy7bzQhBUgpp1EqE=
+github.com/DeRuina/timberjack v1.4.1 h1:JftM5HN/ITKehAXjtdbGqN5XZIS1biHm7VSjU0Qbtqg=
+github.com/DeRuina/timberjack v1.4.1/go.mod h1:RLoeQrwrCGIEF8gO5nV5b/gMD0QIy7bzQhBUgpp1EqE=
 github.com/KimMachineGun/automemlimit v0.7.5 h1:RkbaC0MwhjL1ZuBKunGDjE/ggwAX43DwZrJqVwyveTk=
 github.com/KimMachineGun/automemlimit v0.7.5/go.mod h1:QZxpHaGOQoYvFhv/r4u3U0JTC2ZcOwbSr11UZF46UBM=
 github.com/Masterminds/goutils v1.1.1 h1:5nUrii3FMTL5diU80unEVvNevw1nH4+ZV4DSLVJLSYI=
@@ -85,8 +85,8 @@ github.com/aws/smithy-go v1.24.2 h1:FzA3bu/nt/vDvmnkg+R8Xl46gmzEDam6mZ1hzmwXFng=
 github.com/aws/smithy-go v1.24.2/go.mod h1:YE2RhdIuDbA5E5bTdciG9KrW3+TiEONeUWCqxX9i1Fc=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/caddyserver/certmagic v0.25.3 h1:mGf5ba8F7xA4c5jfDZZbK2buY1VEkbnwpMDixaju94A=
-github.com/caddyserver/certmagic v0.25.3/go.mod h1:YVs43D5+H/Dckt4bTga1KSO/xYfFBfVZainGDywYPAA=
+github.com/caddyserver/certmagic v0.25.2 h1:D7xcS7ggX/WEY54x0czj7ioTkmDWKIgxtIi2OcQclUc=
+github.com/caddyserver/certmagic v0.25.2/go.mod h1:llW/CvsNmza8S6hmsuggsZeiX+uS27dkqY27wDIuBWg=
 github.com/caddyserver/zerossl v0.1.5 h1:dkvOjBAEEtY6LIGAHei7sw2UgqSD6TrWweXpV7lvEvE=
 github.com/caddyserver/zerossl v0.1.5/go.mod h1:CxA0acn7oEGO6//4rtrRjYgEoa4MFw/XofZnrYwGqG4=
 github.com/ccoveille/go-safecast/v2 v2.0.0 h1:+5eyITXAUj3wMjad6cRVJKGnC7vDS55zk0INzJagub0=
@@ -179,8 +179,8 @@ github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=
 github.com/google/go-tpm v0.9.8/go.mod h1:h9jEsEECg7gtLis0upRBQU+GhYVH6jMjrFxI8u6bVUY=
-github.com/google/go-tpm-tools v0.4.7 h1:J3ycC8umYxM9A4eF73EofRZu4BxY0jjQnUnkhIBbvws=
-github.com/google/go-tpm-tools v0.4.7/go.mod h1:gSyXTZHe3fgbzb6WEGd90QucmsnT1SRdlye82gH8QjQ=
+github.com/google/go-tpm-tools v0.4.8 h1:V4oIYyAD3BykOycwYQzO29WefDouQMTsYZqmG3HxOfM=
+github.com/google/go-tpm-tools v0.4.8/go.mod h1:4DfiOtiS1KppJjwf1+tqtW4K3PrCJjAAqFKj/TYTJKg=
 github.com/google/go-tspi v0.3.0 h1:ADtq8RKfP+jrTyIWIZDIYcKOMecRqNJFOew2IT0Inus=
 github.com/google/go-tspi v0.3.0/go.mod h1:xfMGI3G0PhxCdNVcYr1C4C+EizojDg/TXuX5by8CiHI=
 github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=
@@ -189,8 +189,8 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/enterprise-certificate-proxy v0.3.14 h1:yh8ncqsbUY4shRD5dA6RlzjJaT4hi3kII+zYw8wmLb8=
 github.com/googleapis/enterprise-certificate-proxy v0.3.14/go.mod h1:vqVt9yG9480NtzREnTlmGSBmFrA+bzb0yl0TxoBQXOg=
-github.com/googleapis/gax-go/v2 v2.18.0 h1:jxP5Uuo3bxm3M6gGtV94P4lliVetoCB4Wk2x8QA86LI=
-github.com/googleapis/gax-go/v2 v2.18.0/go.mod h1:uSzZN4a356eRG985CzJ3WfbFSpqkLTjsnhWGJR6EwrE=
+github.com/googleapis/gax-go/v2 v2.19.0 h1:fYQaUOiGwll0cGj7jmHT/0nPlcrZDFPrZRhTsoCr8hE=
+github.com/googleapis/gax-go/v2 v2.19.0/go.mod h1:w2ROXVdfGEVFXzmlciUU4EdjHgWvB5h2n6x/8XSTTJA=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 h1:HWRh5R2+9EifMyIHV7ZV+MIZqgz+PMpZ14Jynv3O2Zs=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0/go.mod h1:JfhWUomR1baixubs02l85lZYYOm7LV6om4ceouMv45c=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
@@ -205,8 +205,8 @@ github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsI
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw=
-github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
+github.com/jackc/pgx/v5 v5.8.0 h1:TYPDoleBBme0xGSAX3/+NujXXtpZn9HBONkQC7IEZSo=
+github.com/jackc/pgx/v5 v5.8.0/go.mod h1:QVeDInX2m9VyzvNeiCJVjCkNFqzsNb43204HshNSZKw=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
@@ -375,14 +375,14 @@ go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ
 go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
 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=
-go.opentelemetry.io/contrib/exporters/autoexport v0.65.0 h1:2gApdml7SznX9szEKFjKjM4qGcGSvAybYLBY319XG3g=
-go.opentelemetry.io/contrib/exporters/autoexport v0.65.0/go.mod h1:0QqAGlbHXhmPYACG3n5hNzO5DnEqqtg4VcK5pr22RI0=
+go.opentelemetry.io/contrib/exporters/autoexport v0.68.0 h1:0D3GFvELGIwQGfC6agLsbrEYSGWZTRTxIXxcQUqrOuk=
+go.opentelemetry.io/contrib/exporters/autoexport v0.68.0/go.mod h1:DM2NV7Zb8CcGeVPt6glouY0FAiwZQ/iqgcWExhgWeN8=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0 h1:q4XOmH/0opmeuJtPsbFNivyl7bCt7yRBbeEm2sC/XtQ=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0/go.mod h1:snMWehoOh2wsEwnvvwtDyFCxVeDAODenXHtn5vzrKjo=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0 h1:7iP2uCb7sGddAr30RRS6xjKy7AZ2JtTOPA3oolgVSw8=
-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.65.0/go.mod h1:c7hN3ddxs/z6q9xwvfLPk+UHlWRQyaeR1LdgfL/66l0=
-go.opentelemetry.io/contrib/propagators/autoprop v0.65.0 h1:kTaCycF9Xkm8VBBvH0rJ4wFeRjtIV55Erk3uuVsIs5s=
-go.opentelemetry.io/contrib/propagators/autoprop v0.65.0/go.mod h1:rooPzAbXfxMX9fsPJjmOBg2SN4RhFEV8D7cfGK+N3tE=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 h1:CqXxU8VOmDefoh0+ztfGaymYbhdB/tT3zs79QaZTNGY=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0/go.mod h1:BuhAPThV8PBHBvg8ZzZ/Ok3idOdhWIodywz2xEcRbJo=
+go.opentelemetry.io/contrib/propagators/autoprop v0.68.0 h1:wLGFvNBPqQhzBn0QRBZjrriH8lZ9gqtTz8ufHEjLg7k=
+go.opentelemetry.io/contrib/propagators/autoprop v0.68.0/go.mod h1:evWK9nCqCzH8nhclTlpkdUzmxrmJQ2mrWCdKIvyOYec=
 go.opentelemetry.io/contrib/propagators/aws v1.43.0 h1:EwnsB3cXRLAh7/Nr/9rMuGw73nfb3z6uAvVDjRrbeUg=
 go.opentelemetry.io/contrib/propagators/aws v1.43.0/go.mod h1:CJjTym6F87tEdm61Qvnz5xrV8vKlH4C92djiqcn62k8=
 go.opentelemetry.io/contrib/propagators/b3 v1.43.0 h1:CETqV3QLLPTy5yNrqyMr41VnAOOD4lsRved7n4QG00A=
@@ -431,8 +431,8 @@ go.opentelemetry.io/otel/trace v1.43.0 h1:BkNrHpup+4k4w+ZZ86CZoHHEkohws8AY+WTX09
 go.opentelemetry.io/otel/trace v1.43.0/go.mod h1:/QJhyVBUUswCphDVxq+8mld+AvhXZLhe+8WVFxiFff0=
 go.opentelemetry.io/proto/otlp v1.10.0 h1:IQRWgT5srOCYfiWnpqUYz9CVmbO8bFmKcwYxpuCSL2g=
 go.opentelemetry.io/proto/otlp v1.10.0/go.mod h1:/CV4QoCR/S9yaPj8utp3lvQPoqMtxXdzn7ozvvozVqk=
-go.step.sm/crypto v0.77.1 h1:4EEqfKdv0egQ1lqz2RhnU8Jv6QgXZfrgoxWMqJF9aDs=
-go.step.sm/crypto v0.77.1/go.mod h1:U/SsmEm80mNnfD5WIkbhuW/B1eFp3fgFvdXyDLpU1AQ=
+go.step.sm/crypto v0.77.2 h1:qFjjei+RHc5kP5R7NW9OUWT7SqWIuAOvOkXqg4fNWj8=
+go.step.sm/crypto v0.77.2/go.mod h1:W0YJb9onM5l78qgkXIJ2Up6grnwW8EtpCKIza/NCg0o=
 go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
 go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
@@ -458,8 +458,8 @@ golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v
 golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/crypto v0.50.0 h1:zO47/JPrL6vsNkINmLoo/PH1gcxpls50DNogFvB5ZGI=
 golang.org/x/crypto v0.50.0/go.mod h1:3muZ7vA7PBCE6xgPX7nkzzjiUq87kRItoJQM1Yo8S+Q=
-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/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 v0.34.0 h1:xIHgNUUnW6sYkcM5Jleh05DvLOtwc6RitGHbDk4akRI=
+golang.org/x/mod v0.34.0/go.mod h1:ykgH52iCZe79kzLLMhyCUzhMci+nQj+0XkbXpNYtVjY=
 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=
@@ -538,19 +538,19 @@ 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 v0.43.0 h1:12BdW9CeB3Z+J/I/wj34VMl8X+fEXBxVR90JeMX5E7s=
+golang.org/x/tools v0.43.0/go.mod h1:uHkMso649BX2cZK6+RpuIPXS3ho2hZo4FVwfoy1vIk0=
 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 v0.271.0 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 v0.0.0-20260401024825-9d38bb4040a9 h1:VPWxll4HlMw1Vs/qXtN7BvhZqsS9cdAittCNvVENElA=
-google.golang.org/genproto/googleapis/api v0.0.0-20260401024825-9d38bb4040a9/go.mod h1:7QBABkRtR8z+TEnmXTqIqwJLlzrZKVfAUm7tY3yGv0M=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260401024825-9d38bb4040a9 h1:m8qni9SQFH0tJc1X0vmnpw/0t+AImlSvp30sEupozUg=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20260401024825-9d38bb4040a9/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
+google.golang.org/api v0.272.0 h1:eLUQZGnAS3OHn31URRf9sAmRk3w2JjMx37d2k8AjJmA=
+google.golang.org/api v0.272.0/go.mod h1:wKjowi5LNJc5qarNvDCvNQBn3rVK8nSy6jg2SwRwzIA=
+google.golang.org/genproto v0.0.0-20260316180232-0b37fe3546d5 h1:JNfk58HZ8lfmXbYK2vx/UvsqIL59TzByCxPIX4TDmsE=
+google.golang.org/genproto v0.0.0-20260316180232-0b37fe3546d5/go.mod h1:x5julN69+ED4PcFk/XWayw35O0lf/nGa4aNgODCmNmw=
+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 v0.0.0-20260406210006-6f92a3bedf2d h1:wT2n40TBqFY6wiwazVK9/iTWbsQrgk5ZfCSVFLO9LQA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260406210006-6f92a3bedf2d/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
 google.golang.org/grpc v1.80.0 h1:Xr6m2WmWZLETvUNvIUmeD5OAagMw3FiKmMlTdViWsHM=
 google.golang.org/grpc v1.80.0/go.mod h1:ho/dLnxwi3EDJA4Zghp7k2Ec1+c2jqup0bFkw07bwF4=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 h1:F29+wU6Ee6qgu9TddPgooOdaqsxTMunOoj8KA5yuS5A=

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

@@ -69,7 +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
@@ -99,15 +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
@@ -208,9 +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
@@ -222,6 +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{
@@ -695,7 +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()))
@@ -820,12 +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

@@ -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}"
 

modules/caddyhttp/autohttps_test.go

@@ -1,44 +0,0 @@
-package caddyhttp
-
-import (
-	"testing"
-
-	"github.com/caddyserver/caddy/v2"
-)
-
-func TestRecordAutoHTTPSRedirectAddressPrefersHTTPSPort(t *testing.T) {
-	app := &App{HTTPSPort: 443}
-	redirDomains := make(map[string][]caddy.NetworkAddress)
-
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", StartPort: 2345, EndPort: 2345})
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", StartPort: 443, EndPort: 443})
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", StartPort: 8443, EndPort: 8443})
-
-	got := redirDomains["example.com"]
-	if len(got) != 1 {
-		t.Fatalf("expected 1 redirect address, got %d: %#v", len(got), got)
-	}
-	if got[0].StartPort != 443 {
-		t.Fatalf("expected redirect to prefer HTTPS port 443, got %#v", got[0])
-	}
-}
-
-func TestRecordAutoHTTPSRedirectAddressKeepsAllBindAddressesOnWinningPort(t *testing.T) {
-	app := &App{HTTPSPort: 443}
-	redirDomains := make(map[string][]caddy.NetworkAddress)
-
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", Host: "10.0.0.189", StartPort: 8443, EndPort: 8443})
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", Host: "10.0.0.189", StartPort: 443, EndPort: 443})
-	app.recordAutoHTTPSRedirectAddress(redirDomains, "example.com", caddy.NetworkAddress{Network: "tcp", Host: "2603:c024:8002:9500:9eb:e5d3:3975:d056", StartPort: 443, EndPort: 443})
-
-	got := redirDomains["example.com"]
-	if len(got) != 2 {
-		t.Fatalf("expected 2 redirect addresses for both bind addresses on the winning port, got %d: %#v", len(got), got)
-	}
-	if got[0].StartPort != 443 || got[1].StartPort != 443 {
-		t.Fatalf("expected both redirect addresses to stay on HTTPS port 443, got %#v", got)
-	}
-	if got[0].Host != "10.0.0.189" || got[1].Host != "2603:c024:8002:9500:9eb:e5d3:3975:d056" {
-		t.Fatalf("expected both bind addresses to be preserved, got %#v", got)
-	}
-}

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/staticfiles.go

@@ -785,7 +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/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

@@ -1562,14 +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/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>

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/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/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"
 )
 
@@ -258,475 +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)
-			}
-		})
-	}
-}

modules/caddyhttp/reverseproxy/reverseproxy.go

@@ -574,17 +574,6 @@ 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 {
@@ -681,12 +670,8 @@ 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) {
@@ -1070,45 +1055,6 @@ 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) {
@@ -1128,6 +1074,14 @@ 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))
 		}
@@ -1312,29 +1266,18 @@ 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))
@@ -1564,12 +1507,6 @@ 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
 
@@ -1621,15 +1558,13 @@ 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:"-"`
@@ -1651,28 +1586,10 @@ 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
@@ -1745,34 +1662,10 @@ 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/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/caddyfile.go

@@ -34,9 +34,7 @@ func init() {
 
 // parseCaddyfileRewrite sets up a basic rewrite handler from Caddyfile tokens. Syntax:
 //
-//	rewrite [<matcher>] <to> {
-//		force_modify_query
-//	}
+//	rewrite [<matcher>] <to>
 //
 // Only URI components which are given in <to> will be set in the resulting URI.
 // See the docs for the rewrite handler for more information.
@@ -52,30 +50,12 @@ func parseCaddyfileRewrite(h httpcaddyfile.Helper) ([]httpcaddyfile.ConfigValue,
 		return nil, h.Errf("too many arguments; should only be a matcher and a URI")
 	}
 
-	parseBlock := func(rewr *Rewrite) error {
-		for nesting := h.Nesting(); h.NextBlock(nesting); {
-			switch h.Val() {
-			case "force_modify_query":
-				rewr.ForceModifyQuery = true
-
-			default:
-				return h.Errf("unknown subdirective: %s", h.Val())
-			}
-		}
-		return nil
-	}
-
 	// with only one arg, assume it's a rewrite URI with no matcher token
 	if argsCount == 1 {
 		if !h.NextArg() {
 			return nil, h.ArgErr()
 		}
-		rewr := Rewrite{URI: h.Val()}
-		err := parseBlock(&rewr)
-		if err != nil {
-			return nil, err
-		}
-		return h.NewRoute(nil, rewr), nil
+		return h.NewRoute(nil, Rewrite{URI: h.Val()}), nil
 	}
 
 	// parse the matcher token into a matcher set
@@ -86,12 +66,7 @@ func parseCaddyfileRewrite(h httpcaddyfile.Helper) ([]httpcaddyfile.ConfigValue,
 	h.Next() // consume directive name again, matcher parsing does a reset
 	h.Next() // advance to the rewrite URI
 
-	rewr := Rewrite{URI: h.Val()}
-	err = parseBlock(&rewr)
-	if err != nil {
-		return nil, err
-	}
-	return h.NewRoute(userMatcherSet, rewr), nil
+	return h.NewRoute(userMatcherSet, Rewrite{URI: h.Val()}), nil
 }
 
 // parseCaddyfileMethod sets up a basic method rewrite handler from Caddyfile tokens. Syntax:

modules/caddyhttp/rewrite/rewrite.go

@@ -92,17 +92,6 @@ type Rewrite struct {
 	// Mutates the query string of the URI.
 	Query *queryOps `json:"query,omitempty"`
 
-	// If true, the rewrite will be forced to also apply to the
-	// query part of the URL. This is only needed if the configured
-	// URI does not include a '?' character which is normally used
-	// to determine whether the query should be modified. In other
-	// words, this allows rewriting both the path and query when
-	// using a placeholder as the replacement value, whereas otherwise
-	// only the path would be rewritten because the placeholder itself
-	// does not contain a '?' character. Only use this if the placeholder
-	// is trusted to not be vulnerable to query injections.
-	ForceModifyQuery bool `json:"force_modify_query,omitempty"`
-
 	logger *zap.Logger
 }
 
@@ -237,15 +226,10 @@ func (rewr Rewrite) Rewrite(r *http.Request, repl *caddy.Replacer) bool {
 			// recompute; new path contains a query string
 			var injectedQuery string
 			newPath, injectedQuery = before, after
-
-			// don't overwrite explicitly-configured query string,
-			// unless configured explicitly to do so
-			if query == "" || rewr.ForceModifyQuery {
+			// don't overwrite explicitly-configured query string
+			if query == "" {
 				query = injectedQuery
 			}
-			if rewr.ForceModifyQuery {
-				qsStart = 0
-			}
 		}
 
 		if query != "" {

modules/caddyhttp/rewrite/rewrite_test.go

@@ -225,23 +225,6 @@ func TestRewrite(t *testing.T) {
 			input:  newRequest(t, "GET", "/foo#fragFirst?c=d"),
 			expect: newRequest(t, "GET", "/bar#fragFirst?c=d"),
 		},
-		{
-			rule:   Rewrite{URI: "{test.path_and_query}"},
-			input:  newRequest(t, "GET", "/"),
-			expect: newRequest(t, "GET", "/foo"),
-		},
-		{
-			// TODO: This might be an incorrect result, since it also replaces
-			// the path with empty string when that might not be the intent.
-			rule:   Rewrite{URI: "{test.query}", ForceModifyQuery: true},
-			input:  newRequest(t, "GET", "/foo"),
-			expect: newRequest(t, "GET", "?bar=1"),
-		},
-		{
-			rule:   Rewrite{URI: "{test.path_and_query}", ForceModifyQuery: true},
-			input:  newRequest(t, "GET", "/"),
-			expect: newRequest(t, "GET", "/foo?bar=1"),
-		},
 		{
 			rule:   Rewrite{URI: "/api/admin/panel"},
 			input:  newRequest(t, "GET", "/api/admin%2Fpanel"),
@@ -381,9 +364,6 @@ func TestRewrite(t *testing.T) {
 		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)
-		repl.Set("test.path", "/foo")
-		repl.Set("test.query", "?bar=1")
-		repl.Set("test.path_and_query", "/foo?bar=1")
 
 		// we can't directly call Provision() without a valid caddy.Context
 		// (TODO: fix that) so here we ad-hoc compile the regex

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)
@@ -1085,11 +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/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)
 	}

modules/caddytls/acmeissuer.go

@@ -140,42 +140,6 @@ func (iss *ACMEIssuer) Provision(ctx caddy.Context) error {
 		iss.Email = email
 	}
 
-	// expand CA endpoint, if non-empty
-	if iss.CA != "" {
-		ca, err := repl.ReplaceOrErr(iss.CA, true, true)
-		if err != nil {
-			return fmt.Errorf("expanding CA endpoint '%s': %v", iss.CA, err)
-		}
-		iss.CA = ca
-	}
-
-	// expand TestCA endpoint, if non-empty
-	if iss.TestCA != "" {
-		testca, err := repl.ReplaceOrErr(iss.TestCA, true, true)
-		if err != nil {
-			return fmt.Errorf("expanding TestCA endpoint '%s': %v", iss.TestCA, err)
-		}
-		iss.TestCA = testca
-	}
-
-	// expand EAB credentials, if non-empty
-	if iss.ExternalAccount != nil {
-		if iss.ExternalAccount.KeyID != "" {
-			keyID, err := repl.ReplaceOrErr(iss.ExternalAccount.KeyID, true, true)
-			if err != nil {
-				return fmt.Errorf("expanding EAB key ID '%s': %v", iss.ExternalAccount.KeyID, err)
-			}
-			iss.ExternalAccount.KeyID = keyID
-		}
-		if iss.ExternalAccount.MACKey != "" {
-			macKey, err := repl.ReplaceOrErr(iss.ExternalAccount.MACKey, true, true)
-			if err != nil {
-				return fmt.Errorf("expanding EAB MAC key (redacted): %v", err)
-			}
-			iss.ExternalAccount.MACKey = macKey
-		}
-	}
-
 	// expand account key, if non-empty
 	if iss.AccountKey != "" {
 		accountKey, err := repl.ReplaceOrErr(iss.AccountKey, true, true)

modules/caddytls/acmeissuer_test.go

@@ -1,43 +0,0 @@
-package caddytls
-
-import (
-	"github.com/caddyserver/caddy/v2"
-	"github.com/mholt/acmez/v3/acme"
-	"testing"
-)
-
-func TestACMEIssuerExpandPlaceholders(t *testing.T) {
-	t.Setenv("CADDY_TEST_CA_URL", "https://acme.example.com/directory")
-	t.Setenv("CADDY_TEST_TEST_CA_URL", "https://acme2.example.com/directory")
-	t.Setenv("CADDY_TEST_EAB_KEY_ID", "example-key-id")
-	t.Setenv("CADDY_TEST_EAB_MAC_KEY", "example-mac-key")
-
-	caddyCtx, cancel := caddy.NewContext(caddy.Context{Context: t.Context()})
-	defer cancel()
-
-	iss := &ACMEIssuer{
-		CA:     "{env.CADDY_TEST_CA_URL}",
-		TestCA: "{env.CADDY_TEST_TEST_CA_URL}",
-		ExternalAccount: &acme.EAB{
-			KeyID:  "{env.CADDY_TEST_EAB_KEY_ID}",
-			MACKey: "{env.CADDY_TEST_EAB_MAC_KEY}",
-		},
-	}
-
-	if err := iss.Provision(caddyCtx); err != nil {
-		t.Fatalf("Provision() returned unexpected error: %v", err)
-	}
-
-	if want := "https://acme.example.com/directory"; iss.CA != want {
-		t.Errorf("CA: got %q, want %q", iss.CA, want)
-	}
-	if want := "https://acme2.example.com/directory"; iss.TestCA != want {
-		t.Errorf("TestCA: got %q, want %q", iss.TestCA, want)
-	}
-	if want := "example-key-id"; iss.ExternalAccount.KeyID != want {
-		t.Errorf("ExternalAccount.KeyID: got %q, want %q", iss.ExternalAccount.KeyID, want)
-	}
-	if want := "example-mac-key"; iss.ExternalAccount.MACKey != want {
-		t.Errorf("ExternalAccount.MACKey: got %q, want %q", iss.ExternalAccount.MACKey, want)
-	}
-}

modules/logging/filewriter_test.go

@@ -174,47 +174,6 @@ func TestFileRotationPreserveMode(t *testing.T) {
 	}
 }
 
-func TestFileRotationPreserveModeWithUmask(t *testing.T) {
-	m := syscall.Umask(0o022)
-	defer syscall.Umask(m)
-
-	dir, err := os.MkdirTemp("", "caddytest")
-	if err != nil {
-		t.Fatalf("failed to create tempdir: %v", err)
-	}
-	defer os.RemoveAll(dir)
-
-	fpath := path.Join(dir, "test.log")
-
-	roll := true
-	mode := fileMode(0o660)
-	fw := FileWriter{
-		Filename:   fpath,
-		Mode:       mode,
-		Roll:       &roll,
-		RollSizeMB: 1,
-	}
-
-	logger, err := fw.OpenWriter()
-	if err != nil {
-		t.Fatalf("failed to create file: %v", err)
-	}
-	defer logger.Close()
-
-	b := make([]byte, 1024*1024-1000)
-	logger.Write(b)
-	logger.Write(b[0:2000])
-
-	st, err := os.Stat(fpath)
-	if err != nil {
-		t.Fatalf("failed to check file permissions: %v", err)
-	}
-
-	if got := st.Mode().Perm(); got != os.FileMode(mode) {
-		t.Errorf("file mode after rotation is %v, want %v", got, mode)
-	}
-}
-
 func TestFileModeConfig(t *testing.T) {
 	tests := []struct {
 		name    string

modules/logging/filters.go

@@ -29,7 +29,7 @@ import (
 
 	"github.com/caddyserver/caddy/v2"
 	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
-	"github.com/caddyserver/caddy/v2/internal"
+	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
 func init() {
@@ -100,8 +100,8 @@ func (f *HashFilter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 
 // Filter filters the input field with the replacement value.
 func (f *HashFilter) Filter(in zapcore.Field) zapcore.Field {
-	if array, ok := in.Interface.(internal.LoggableStringArray); ok {
-		newArray := make(internal.LoggableStringArray, len(array))
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
 			newArray[i] = hash(s)
 		}
@@ -241,8 +241,8 @@ func (m *IPMaskFilter) Provision(ctx caddy.Context) error {
 
 // Filter filters the input field.
 func (m IPMaskFilter) Filter(in zapcore.Field) zapcore.Field {
-	if array, ok := in.Interface.(internal.LoggableStringArray); ok {
-		newArray := make(internal.LoggableStringArray, len(array))
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
 			newArray[i] = m.mask(s)
 		}
@@ -392,8 +392,8 @@ func (m *QueryFilter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 
 // Filter filters the input field.
 func (m QueryFilter) Filter(in zapcore.Field) zapcore.Field {
-	if array, ok := in.Interface.(internal.LoggableStringArray); ok {
-		newArray := make(internal.LoggableStringArray, len(array))
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
 			newArray[i] = m.processQueryString(s)
 		}
@@ -523,7 +523,7 @@ func (m *CookieFilter) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
 
 // Filter filters the input field.
 func (m CookieFilter) Filter(in zapcore.Field) zapcore.Field {
-	cookiesSlice, ok := in.Interface.(internal.LoggableStringArray)
+	cookiesSlice, ok := in.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		return in
 	}
@@ -559,7 +559,7 @@ OUTER:
 		transformedRequest.AddCookie(c)
 	}
 
-	in.Interface = internal.LoggableStringArray(transformedRequest.Header["Cookie"])
+	in.Interface = caddyhttp.LoggableStringArray(transformedRequest.Header["Cookie"])
 
 	return in
 }
@@ -613,8 +613,8 @@ func (m *RegexpFilter) Provision(ctx caddy.Context) error {
 
 // Filter filters the input field with the replacement value if it matches the regexp.
 func (f *RegexpFilter) Filter(in zapcore.Field) zapcore.Field {
-	if array, ok := in.Interface.(internal.LoggableStringArray); ok {
-		newArray := make(internal.LoggableStringArray, len(array))
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
 			newArray[i] = f.regexp.ReplaceAllString(s, f.Value)
 		}
@@ -783,8 +783,8 @@ func (f *MultiRegexpFilter) Validate() error {
 // Filter applies all regexp operations sequentially to the input field.
 // Input is sanitized and validated for security.
 func (f *MultiRegexpFilter) Filter(in zapcore.Field) zapcore.Field {
-	if array, ok := in.Interface.(internal.LoggableStringArray); ok {
-		newArray := make(internal.LoggableStringArray, len(array))
+	if array, ok := in.Interface.(caddyhttp.LoggableStringArray); ok {
+		newArray := make(caddyhttp.LoggableStringArray, len(array))
 		for i, s := range array {
 			newArray[i] = f.processString(s)
 		}

modules/logging/filters_test.go

@@ -8,7 +8,7 @@ import (
 	"go.uber.org/zap/zapcore"
 
 	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/internal"
+	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
 )
 
 func TestIPMaskSingleValue(t *testing.T) {
@@ -55,11 +55,11 @@ func TestIPMaskMultiValue(t *testing.T) {
 	f := IPMaskFilter{IPv4MaskRaw: 16, IPv6MaskRaw: 32}
 	f.Provision(caddy.Context{})
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
 		"255.255.255.255",
 		"244.244.244.244",
 	}})
-	arr, ok := out.Interface.(internal.LoggableStringArray)
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Integer)
 	}
@@ -70,11 +70,11 @@ func TestIPMaskMultiValue(t *testing.T) {
 		t.Fatalf("field entry 1 has not been filtered: %s", arr[1])
 	}
 
-	out = f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{
+	out = f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
 		"ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
 		"ff00:ffff:ffff:ffff:ffff:ffff:ffff:ffff",
 	}})
-	arr, ok = out.Interface.(internal.LoggableStringArray)
+	arr, ok = out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Integer)
 	}
@@ -120,11 +120,11 @@ func TestQueryFilterMultiValue(t *testing.T) {
 		t.Fatalf("the filter must be valid")
 	}
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
 		"/path1?foo=a&foo=b&bar=c&bar=d&baz=e&hash=hashed",
 		"/path2?foo=c&foo=d&bar=e&bar=f&baz=g&hash=hashed",
 	}})
-	arr, ok := out.Interface.(internal.LoggableStringArray)
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Interface)
 	}
@@ -162,11 +162,11 @@ func TestCookieFilter(t *testing.T) {
 		{hashAction, "hash", ""},
 	}}
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
 		"foo=a; foo=b; bar=c; bar=d; baz=e; hash=hashed",
 	}})
-	outval := out.Interface.(internal.LoggableStringArray)
-	expected := internal.LoggableStringArray{
+	outval := out.Interface.(caddyhttp.LoggableStringArray)
+	expected := caddyhttp.LoggableStringArray{
 		"foo=REDACTED; foo=REDACTED; baz=e; hash=1a06df82",
 	}
 	if outval[0] != expected[0] {
@@ -204,8 +204,8 @@ func TestRegexpFilterMultiValue(t *testing.T) {
 	f := RegexpFilter{RawRegexp: `secret`, Value: "REDACTED"}
 	f.Provision(caddy.Context{})
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{"foo-secret-bar", "bar-secret-foo"}})
-	arr, ok := out.Interface.(internal.LoggableStringArray)
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{"foo-secret-bar", "bar-secret-foo"}})
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Integer)
 	}
@@ -229,8 +229,8 @@ func TestHashFilterSingleValue(t *testing.T) {
 func TestHashFilterMultiValue(t *testing.T) {
 	f := HashFilter{}
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{"foo", "bar"}})
-	arr, ok := out.Interface.(internal.LoggableStringArray)
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{"foo", "bar"}})
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Integer)
 	}
@@ -292,11 +292,11 @@ func TestMultiRegexpFilterMultiValue(t *testing.T) {
 		t.Fatalf("unexpected error provisioning: %v", err)
 	}
 
-	out := f.Filter(zapcore.Field{Interface: internal.LoggableStringArray{
+	out := f.Filter(zapcore.Field{Interface: caddyhttp.LoggableStringArray{
 		"foo-secret-123",
 		"bar-secret-456",
 	}})
-	arr, ok := out.Interface.(internal.LoggableStringArray)
+	arr, ok := out.Interface.(caddyhttp.LoggableStringArray)
 	if !ok {
 		t.Fatalf("field is wrong type: %T", out.Interface)
 	}

replacer.go

@@ -121,18 +121,6 @@ func (r *Replacer) Delete(variable string) {
 	r.mapMutex.Unlock()
 }
 
-// DeleteByPrefix removes all static variables with
-// keys starting with the given prefix
-func (r *Replacer) DeleteByPrefix(prefix string) {
-	r.mapMutex.Lock()
-	for key := range r.static {
-		if strings.HasPrefix(key, prefix) {
-			delete(r.static, key)
-		}
-	}
-	r.mapMutex.Unlock()
-}
-
 // fromStatic provides values from r.static.
 func (r *Replacer) fromStatic(key string) (any, bool) {
 	r.mapMutex.RLock()

usagepool.go

@@ -79,15 +79,14 @@ func (up *UsagePool) LoadOrNew(key any, construct Constructor) (value any, loade
 	up.Lock()
 	upv, loaded = up.pool[key]
 	if loaded {
-		upv.refs.Add(1)
+		atomic.AddInt32(&upv.refs, 1)
 		up.Unlock()
 		upv.RLock()
 		value = upv.value
 		err = upv.err
 		upv.RUnlock()
 	} else {
-		upv = &usagePoolVal{}
-		upv.refs.Store(1)
+		upv = &usagePoolVal{refs: 1}
 		upv.Lock()
 		up.pool[key] = upv
 		up.Unlock()
@@ -119,7 +118,7 @@ func (up *UsagePool) LoadOrStore(key, val any) (value any, loaded bool) {
 	up.Lock()
 	upv, loaded = up.pool[key]
 	if loaded {
-		upv.refs.Add(1)
+		atomic.AddInt32(&upv.refs, 1)
 		up.Unlock()
 		upv.Lock()
 		if upv.err == nil {
@@ -130,8 +129,7 @@ func (up *UsagePool) LoadOrStore(key, val any) (value any, loaded bool) {
 		}
 		upv.Unlock()
 	} else {
-		upv = &usagePoolVal{value: val}
-		upv.refs.Store(1)
+		upv = &usagePoolVal{refs: 1, value: val}
 		up.pool[key] = upv
 		up.Unlock()
 		value = val
@@ -175,7 +173,7 @@ func (up *UsagePool) Delete(key any) (deleted bool, err error) {
 		up.Unlock()
 		return false, nil
 	}
-	refs := upv.refs.Add(-1)
+	refs := atomic.AddInt32(&upv.refs, -1)
 	if refs == 0 {
 		delete(up.pool, key)
 		up.Unlock()
@@ -190,7 +188,7 @@ func (up *UsagePool) Delete(key any) (deleted bool, err error) {
 		up.Unlock()
 		if refs < 0 {
 			panic(fmt.Sprintf("deleted more than stored: %#v (usage: %d)",
-				upv.value, upv.refs.Load()))
+				upv.value, upv.refs))
 		}
 	}
 	return deleted, err
@@ -205,7 +203,7 @@ func (up *UsagePool) References(key any) (int, bool) {
 	if loaded {
 		// I wonder if it'd be safer to read this value during
 		// our lock on the UsagePool... guess we'll see...
-		refs := upv.refs.Load()
+		refs := atomic.LoadInt32(&upv.refs)
 		return int(refs), true
 	}
 	return 0, false
@@ -222,7 +220,7 @@ type Destructor interface {
 }
 
 type usagePoolVal struct {
-	refs  atomic.Int32
+	refs  int32 // accessed atomically; must be 64-bit aligned for 32-bit systems
 	value any
 	err   error
 	sync.RWMutex