Merge f8b6b4aceafd476289b3f2472f037aecaedc682a into f416d1e594a027063e73f66ac873a82113036fd8

This reverts commit a61c9c6f6da99c3797bb4e7c5bb38b9435b1460a.

.github/workflows/codeql.yml

@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/gin.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Go
@@ -54,17 +54,17 @@ jobs:
       TESTTAGS: ${{ matrix.test-tags }}
       GOPROXY: https://proxy.golang.org
     steps:
-      - name: Checkout Code
-        uses: actions/checkout@v5
-        with:
-          ref: ${{ github.ref }}
-
       - name: Set up Go ${{ matrix.go }}
         uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go }}
           cache: false
 
+      - name: Checkout Code
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ github.ref }}
+
       - uses: actions/cache@v4
         with:
           path: |

.github/workflows/goreleaser.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Set up Go

.github/workflows/trivy-scan.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

gin.go

@@ -11,7 +11,6 @@ import (
 	"net/http"
 	"os"
 	"path"
-	"regexp"
 	"strings"
 	"sync"
 
@@ -48,11 +47,6 @@ var defaultTrustedCIDRs = []*net.IPNet{
 	},
 }
 
-var (
-	regSafePrefix         = regexp.MustCompile("[^a-zA-Z0-9/-]+")
-	regRemoveRepeatedChar = regexp.MustCompile("/{2,}")
-)
-
 // HandlerFunc defines the handler used by gin middleware as return value.
 type HandlerFunc func(*Context)
 
@@ -141,10 +135,16 @@ type Engine struct {
 	AppEngine bool
 
 	// UseRawPath if enabled, the url.RawPath will be used to find parameters.
+	// The RawPath is only a hint, EscapedPath() should be use instead. (https://pkg.go.dev/net/url@master#URL)
+	// Only use RawPath if you know what you are doing.
 	UseRawPath bool
 
+	// UseEscapedPath if enable, the url.EscapedPath() will be used to find parameters
+	// It overrides UseRawPath
+	UseEscapedPath bool
+
 	// UnescapePathValues if true, the path value will be unescaped.
-	// If UseRawPath is false (by default), the UnescapePathValues effectively is true,
+	// If UseRawPath and UseEscapedPath are false (by default), the UnescapePathValues effectively is true,
 	// as url.Path gonna be used, which is already unescaped.
 	UnescapePathValues bool
 
@@ -197,6 +197,7 @@ var _ IRouter = (*Engine)(nil)
 // - HandleMethodNotAllowed: false
 // - ForwardedByClientIP:    true
 // - UseRawPath:             false
+// - UseEscapedPath: 		 false
 // - UnescapePathValues:     true
 func New(opts ...OptionFunc) *Engine {
 	debugPrintWARNINGNew()
@@ -214,6 +215,7 @@ func New(opts ...OptionFunc) *Engine {
 		RemoteIPHeaders:        []string{"X-Forwarded-For", "X-Real-IP"},
 		TrustedPlatform:        defaultPlatform,
 		UseRawPath:             false,
+		UseEscapedPath:         false,
 		RemoveExtraSlash:       false,
 		UnescapePathValues:     true,
 		MaxMultipartMemory:     defaultMultipartMemory,
@@ -689,7 +691,11 @@ func (engine *Engine) handleHTTPRequest(c *Context) {
 	httpMethod := c.Request.Method
 	rPath := c.Request.URL.Path
 	unescape := false
-	if engine.UseRawPath && len(c.Request.URL.RawPath) > 0 {
+
+	if engine.UseEscapedPath {
+		rPath = c.Request.URL.EscapedPath()
+		unescape = engine.UnescapePathValues
+	} else if engine.UseRawPath && len(c.Request.URL.RawPath) > 0 {
 		rPath = c.Request.URL.RawPath
 		unescape = engine.UnescapePathValues
 	}
@@ -776,8 +782,8 @@ func redirectTrailingSlash(c *Context) {
 	req := c.Request
 	p := req.URL.Path
 	if prefix := path.Clean(c.Request.Header.Get("X-Forwarded-Prefix")); prefix != "." {
-		prefix = regSafePrefix.ReplaceAllString(prefix, "")
-		prefix = regRemoveRepeatedChar.ReplaceAllString(prefix, "/")
+		prefix = sanitizePathChars(prefix)
+		prefix = removeRepeatedChar(prefix, '/')
 
 		p = prefix + "/" + req.URL.Path
 	}
@@ -788,6 +794,17 @@ func redirectTrailingSlash(c *Context) {
 	redirectRequest(c)
 }
 
+// sanitizePathChars removes unsafe characters from path strings,
+// keeping only ASCII letters, ASCII numbers, forward slashes, and hyphens.
+func sanitizePathChars(s string) string {
+	return strings.Map(func(r rune) rune {
+		if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') || (r >= '0' && r <= '9') || r == '/' || r == '-' {
+			return r
+		}
+		return -1
+	}, s)
+}
+
 func redirectFixedPath(c *Context, root *node, trailingSlash bool) bool {
 	req := c.Request
 	rPath := req.URL.Path

ginS/gins_test.go

@@ -0,0 +1,246 @@
+// Copyright 2025 Gin Core Team. All rights reserved.
+// Use of this source code is governed by a MIT style
+// license that can be found in the LICENSE file.
+
+package ginS
+
+import (
+	"html/template"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/assert"
+)
+
+func init() {
+	gin.SetMode(gin.TestMode)
+}
+
+func TestGET(t *testing.T) {
+	GET("/test", func(c *gin.Context) {
+		c.String(http.StatusOK, "test")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/test", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "test", w.Body.String())
+}
+
+func TestPOST(t *testing.T) {
+	POST("/post", func(c *gin.Context) {
+		c.String(http.StatusCreated, "created")
+	})
+
+	req := httptest.NewRequest(http.MethodPost, "/post", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusCreated, w.Code)
+	assert.Equal(t, "created", w.Body.String())
+}
+
+func TestPUT(t *testing.T) {
+	PUT("/put", func(c *gin.Context) {
+		c.String(http.StatusOK, "updated")
+	})
+
+	req := httptest.NewRequest(http.MethodPut, "/put", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "updated", w.Body.String())
+}
+
+func TestDELETE(t *testing.T) {
+	DELETE("/delete", func(c *gin.Context) {
+		c.String(http.StatusOK, "deleted")
+	})
+
+	req := httptest.NewRequest(http.MethodDelete, "/delete", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "deleted", w.Body.String())
+}
+
+func TestPATCH(t *testing.T) {
+	PATCH("/patch", func(c *gin.Context) {
+		c.String(http.StatusOK, "patched")
+	})
+
+	req := httptest.NewRequest(http.MethodPatch, "/patch", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "patched", w.Body.String())
+}
+
+func TestOPTIONS(t *testing.T) {
+	OPTIONS("/options", func(c *gin.Context) {
+		c.String(http.StatusOK, "options")
+	})
+
+	req := httptest.NewRequest(http.MethodOptions, "/options", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "options", w.Body.String())
+}
+
+func TestHEAD(t *testing.T) {
+	HEAD("/head", func(c *gin.Context) {
+		c.String(http.StatusOK, "head")
+	})
+
+	req := httptest.NewRequest(http.MethodHead, "/head", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+}
+
+func TestAny(t *testing.T) {
+	Any("/any", func(c *gin.Context) {
+		c.String(http.StatusOK, "any")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/any", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "any", w.Body.String())
+}
+
+func TestHandle(t *testing.T) {
+	Handle(http.MethodGet, "/handle", func(c *gin.Context) {
+		c.String(http.StatusOK, "handle")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/handle", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "handle", w.Body.String())
+}
+
+func TestGroup(t *testing.T) {
+	group := Group("/group")
+	group.GET("/test", func(c *gin.Context) {
+		c.String(http.StatusOK, "group test")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/group/test", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Equal(t, "group test", w.Body.String())
+}
+
+func TestUse(t *testing.T) {
+	var middlewareExecuted bool
+	Use(func(c *gin.Context) {
+		middlewareExecuted = true
+		c.Next()
+	})
+
+	GET("/middleware-test", func(c *gin.Context) {
+		c.String(http.StatusOK, "ok")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/middleware-test", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.True(t, middlewareExecuted)
+	assert.Equal(t, http.StatusOK, w.Code)
+}
+
+func TestNoRoute(t *testing.T) {
+	NoRoute(func(c *gin.Context) {
+		c.String(http.StatusNotFound, "custom 404")
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/nonexistent", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusNotFound, w.Code)
+	assert.Equal(t, "custom 404", w.Body.String())
+}
+
+func TestNoMethod(t *testing.T) {
+	NoMethod(func(c *gin.Context) {
+		c.String(http.StatusMethodNotAllowed, "method not allowed")
+	})
+
+	// This just verifies that NoMethod is callable
+	// Testing the actual behavior would require a separate engine instance
+	assert.NotNil(t, engine())
+}
+
+func TestRoutes(t *testing.T) {
+	GET("/routes-test", func(c *gin.Context) {})
+
+	routes := Routes()
+	assert.NotEmpty(t, routes)
+
+	found := false
+	for _, route := range routes {
+		if route.Path == "/routes-test" && route.Method == http.MethodGet {
+			found = true
+			break
+		}
+	}
+	assert.True(t, found)
+}
+
+func TestSetHTMLTemplate(t *testing.T) {
+	tmpl := template.Must(template.New("test").Parse("Hello {{.}}"))
+	SetHTMLTemplate(tmpl)
+
+	// Verify engine has template set
+	assert.NotNil(t, engine())
+}
+
+func TestStaticFile(t *testing.T) {
+	StaticFile("/static-file", "../testdata/test_file.txt")
+
+	req := httptest.NewRequest(http.MethodGet, "/static-file", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+}
+
+func TestStatic(t *testing.T) {
+	Static("/static-dir", "../testdata")
+
+	req := httptest.NewRequest(http.MethodGet, "/static-dir/test_file.txt", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+}
+
+func TestStaticFS(t *testing.T) {
+	fs := http.Dir("../testdata")
+	StaticFS("/static-fs", fs)
+
+	req := httptest.NewRequest(http.MethodGet, "/static-fs/test_file.txt", nil)
+	w := httptest.NewRecorder()
+	engine().ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+}

gin_integration_test.go

@@ -70,9 +70,10 @@ func TestRunEmpty(t *testing.T) {
 		router.GET("/example", func(c *Context) { c.String(http.StatusOK, "it worked") })
 		assert.NoError(t, router.Run())
 	}()
-	// have to wait for the goroutine to start and run the server
-	// otherwise the main thread will complete
-	time.Sleep(5 * time.Millisecond)
+
+	// Wait for server to be ready with exponential backoff
+	err := waitForServerReady("http://localhost:8080/example", 10)
+	require.NoError(t, err, "server should start successfully")
 
 	require.Error(t, router.Run(":8080"))
 	testRequest(t, "http://localhost:8080/example")
@@ -213,9 +214,10 @@ func TestRunEmptyWithEnv(t *testing.T) {
 		router.GET("/example", func(c *Context) { c.String(http.StatusOK, "it worked") })
 		assert.NoError(t, router.Run())
 	}()
-	// have to wait for the goroutine to start and run the server
-	// otherwise the main thread will complete
-	time.Sleep(5 * time.Millisecond)
+
+	// Wait for server to be ready with exponential backoff
+	err := waitForServerReady("http://localhost:3123/example", 10)
+	require.NoError(t, err, "server should start successfully")
 
 	require.Error(t, router.Run(":3123"))
 	testRequest(t, "http://localhost:3123/example")
@@ -234,9 +236,10 @@ func TestRunWithPort(t *testing.T) {
 		router.GET("/example", func(c *Context) { c.String(http.StatusOK, "it worked") })
 		assert.NoError(t, router.Run(":5150"))
 	}()
-	// have to wait for the goroutine to start and run the server
-	// otherwise the main thread will complete
-	time.Sleep(5 * time.Millisecond)
+
+	// Wait for server to be ready with exponential backoff
+	err := waitForServerReady("http://localhost:5150/example", 10)
+	require.NoError(t, err, "server should start successfully")
 
 	require.Error(t, router.Run(":5150"))
 	testRequest(t, "http://localhost:5150/example")

gin_test.go

@@ -545,6 +545,29 @@ func TestNoMethodWithoutGlobalHandlers(t *testing.T) {
 }
 
 func TestRebuild404Handlers(t *testing.T) {
+	var middleware0 HandlerFunc = func(c *Context) {}
+	var middleware1 HandlerFunc = func(c *Context) {}
+
+	router := New()
+
+	// Initially, allNoRoute should be nil
+	assert.Nil(t, router.allNoRoute)
+
+	// Set NoRoute handlers
+	router.NoRoute(middleware0)
+	assert.Len(t, router.allNoRoute, 1)
+	assert.Len(t, router.noRoute, 1)
+	compareFunc(t, router.allNoRoute[0], middleware0)
+
+	// Add Use middleware should trigger rebuild404Handlers
+	router.Use(middleware1)
+	assert.Len(t, router.allNoRoute, 2)
+	assert.Len(t, router.Handlers, 1)
+	assert.Len(t, router.noRoute, 1)
+
+	// Global middleware should come first
+	compareFunc(t, router.allNoRoute[0], middleware1)
+	compareFunc(t, router.allNoRoute[1], middleware0)
 }
 
 func TestNoMethodWithGlobalHandlers(t *testing.T) {
@@ -720,6 +743,55 @@ func TestEngineHandleContextPreventsMiddlewareReEntry(t *testing.T) {
 	assert.Equal(t, int64(1), handlerCounterV2)
 }
 
+func TestEngineHandleContextUseEscapedPathPercentEncoded(t *testing.T) {
+	r := New()
+	r.UseEscapedPath = true
+	r.UnescapePathValues = false
+
+	r.GET("/v1/:path", func(c *Context) {
+		// Path is Escaped, the %25 is not interpreted as %
+		assert.Equal(t, "foo%252Fbar", c.Param("path"))
+		c.Status(http.StatusOK)
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/foo%252Fbar", nil)
+	w := httptest.NewRecorder()
+	r.ServeHTTP(w, req)
+}
+
+func TestEngineHandleContextUseRawPathPercentEncoded(t *testing.T) {
+	r := New()
+	r.UseRawPath = true
+	r.UnescapePathValues = false
+
+	r.GET("/v1/:path", func(c *Context) {
+		// Path is used, the %25 is interpreted as %
+		assert.Equal(t, "foo%2Fbar", c.Param("path"))
+		c.Status(http.StatusOK)
+	})
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/foo%252Fbar", nil)
+	w := httptest.NewRecorder()
+	r.ServeHTTP(w, req)
+}
+
+func TestEngineHandleContextUseEscapedPathOverride(t *testing.T) {
+	r := New()
+	r.UseEscapedPath = true
+	r.UseRawPath = true
+	r.UnescapePathValues = false
+
+	r.GET("/v1/:path", func(c *Context) {
+		assert.Equal(t, "foo%25bar", c.Param("path"))
+		c.Status(http.StatusOK)
+	})
+
+	assert.NotPanics(t, func() {
+		w := PerformRequest(r, http.MethodGet, "/v1/foo%25bar")
+		assert.Equal(t, 200, w.Code)
+	})
+}
+
 func TestPrepareTrustedCIRDsWith(t *testing.T) {
 	r := New()
 

go.mod

@@ -12,7 +12,7 @@ require (
 	github.com/mattn/go-isatty v0.0.20
 	github.com/modern-go/reflect2 v1.0.2
 	github.com/pelletier/go-toml/v2 v2.2.4
-	github.com/quic-go/quic-go v0.56.0
+	github.com/quic-go/quic-go v0.57.1
 	github.com/stretchr/testify v1.11.1
 	github.com/ugorji/go/codec v1.3.1
 	golang.org/x/net v0.47.0
@@ -32,7 +32,7 @@ require (
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/quic-go/qpack v0.5.1 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	golang.org/x/arch v0.20.0 // indirect
 	golang.org/x/crypto v0.45.0 // indirect

go.sum

@@ -49,10 +49,10 @@ github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0
 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
-github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
-github.com/quic-go/quic-go v0.56.0 h1:q/TW+OLismmXAehgFLczhCDTYB3bFmua4D9lsNBWxvY=
-github.com/quic-go/quic-go v0.56.0/go.mod h1:9gx5KsFQtw2oZ6GZTyh+7YEvOxWCL9WZAepnHxgAo6c=
+github.com/quic-go/qpack v0.6.0 h1:g7W+BMYynC1LbYLSqRt8PBg5Tgwxn214ZZR34VIOjz8=
+github.com/quic-go/qpack v0.6.0/go.mod h1:lUpLKChi8njB4ty2bFLX2x4gzDqXwUpaO1DP9qMDZII=
+github.com/quic-go/quic-go v0.57.1 h1:25KAAR9QR8KZrCZRThWMKVAwGoiHIrNbT72ULHTuI10=
+github.com/quic-go/quic-go v0.57.1/go.mod h1:ly4QBAjHA2VhdnxhojRsCUOeJwKYg+taDlos92xb1+s=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
 github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=

internal/bytesconv/bytesconv_test.go

@@ -41,6 +41,15 @@ func TestBytesToString(t *testing.T) {
 	}
 }
 
+func TestBytesToStringEmpty(t *testing.T) {
+	if got := BytesToString([]byte{}); got != "" {
+		t.Fatalf("BytesToString([]byte{}) = %q; want empty string", got)
+	}
+	if got := BytesToString(nil); got != "" {
+		t.Fatalf("BytesToString(nil) = %q; want empty string", got)
+	}
+}
+
 const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
 const (
 	letterIdxBits = 6                    // 6 bits to represent a letter index
@@ -78,6 +87,16 @@ func TestStringToBytes(t *testing.T) {
 	}
 }
 
+func TestStringToBytesEmpty(t *testing.T) {
+	b := StringToBytes("")
+	if len(b) != 0 {
+		t.Fatalf(`StringToBytes("") length = %d; want 0`, len(b))
+	}
+	if !bytes.Equal(b, []byte("")) {
+		t.Fatalf(`StringToBytes("") = %v; want []byte("")`, b)
+	}
+}
+
 // go test -v -run=none -bench=^BenchmarkBytesConv -benchmem=true
 
 func BenchmarkBytesConvBytesToStrRaw(b *testing.B) {

path.go

@@ -5,6 +5,8 @@
 
 package gin
 
+const stackBufSize = 128
+
 // cleanPath is the URL version of path.Clean, it returns a canonical URL path
 // for p, eliminating . and .. elements.
 //
@@ -19,7 +21,6 @@ package gin
 //
 // If the result of this process is an empty string, "/" is returned.
 func cleanPath(p string) string {
-	const stackBufSize = 128
 	// Turn empty string into "/"
 	if p == "" {
 		return "/"
@@ -148,3 +149,55 @@ func bufApp(buf *[]byte, s string, w int, c byte) {
 	}
 	b[w] = c
 }
+
+// removeRepeatedChar removes multiple consecutive 'char's from a string.
+// if s == "/a//b///c////" && char == '/', it returns "/a/b/c/"
+func removeRepeatedChar(s string, char byte) string {
+	// Check if there are any consecutive chars
+	hasRepeatedChar := false
+	for i := 1; i < len(s); i++ {
+		if s[i] == char && s[i-1] == char {
+			hasRepeatedChar = true
+			break
+		}
+	}
+	if !hasRepeatedChar {
+		return s
+	}
+
+	// Reasonably sized buffer on stack to avoid allocations in the common case.
+	buf := make([]byte, 0, stackBufSize)
+
+	// Invariants:
+	//      reading from s; r is index of next byte to process.
+	//      writing to buf; w is index of next byte to write.
+	r := 0
+	w := 0
+
+	for n := len(s); r < n; {
+		if s[r] == char {
+			// Write the first char
+			bufApp(&buf, s, w, char)
+			w++
+			r++
+
+			// Skip all consecutive chars
+			for r < n && s[r] == char {
+				r++
+			}
+		} else {
+			// Copy non-char character
+			bufApp(&buf, s, w, s[r])
+			w++
+			r++
+		}
+	}
+
+	// If the original string was not modified (or only shortened at the end),
+	// return the respective substring of the original string.
+	// Otherwise, return a new string from the buffer.
+	if len(buf) == 0 {
+		return s[:w]
+	}
+	return string(buf[:w])
+}

path_test.go

@@ -143,3 +143,50 @@ func BenchmarkPathCleanLong(b *testing.B) {
 		}
 	}
 }
+
+func TestRemoveRepeatedChar(t *testing.T) {
+	testCases := []struct {
+		name string
+		str  string
+		char byte
+		want string
+	}{
+		{
+			name: "empty",
+			str:  "",
+			char: 'a',
+			want: "",
+		},
+		{
+			name: "noSlash",
+			str:  "abc",
+			char: ',',
+			want: "abc",
+		},
+		{
+			name: "withSlash",
+			str:  "/a/b/c/",
+			char: '/',
+			want: "/a/b/c/",
+		},
+		{
+			name: "withRepeatedSlashes",
+			str:  "/a//b///c////",
+			char: '/',
+			want: "/a/b/c/",
+		},
+		{
+			name: "threeSlashes",
+			str:  "///",
+			char: '/',
+			want: "/",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			res := removeRepeatedChar(tc.str, tc.char)
+			assert.Equal(t, tc.want, res)
+		})
+	}
+}

recovery.go

@@ -68,6 +68,9 @@ func CustomRecoveryWithWriter(out io.Writer, handle RecoveryFunc) HandlerFunc {
 						}
 					}
 				}
+				if e, ok := err.(error); ok && errors.Is(e, http.ErrAbortHandler) {
+					brokenPipe = true
+				}
 				if logger != nil {
 					const stackSkip = 3
 					if brokenPipe {

recovery_test.go

@@ -142,6 +142,30 @@ func TestPanicWithBrokenPipe(t *testing.T) {
 	}
 }
 
+// TestPanicWithAbortHandler asserts that recovery handles http.ErrAbortHandler as broken pipe
+func TestPanicWithAbortHandler(t *testing.T) {
+	const expectCode = 204
+
+	var buf strings.Builder
+	router := New()
+	router.Use(RecoveryWithWriter(&buf))
+	router.GET("/recovery", func(c *Context) {
+		// Start writing response
+		c.Header("X-Test", "Value")
+		c.Status(expectCode)
+
+		// Panic with ErrAbortHandler which should be treated as broken pipe
+		panic(http.ErrAbortHandler)
+	})
+	// RUN
+	w := PerformRequest(router, http.MethodGet, "/recovery")
+	// TEST
+	assert.Equal(t, expectCode, w.Code)
+	out := buf.String()
+	assert.Contains(t, out, "net/http: abort Handler")
+	assert.NotContains(t, out, "panic recovered")
+}
+
 func TestCustomRecoveryWithWriter(t *testing.T) {
 	errBuffer := new(strings.Builder)
 	buffer := new(strings.Builder)

test_helpers.go

@@ -4,7 +4,11 @@
 
 package gin
 
-import "net/http"
+import (
+	"fmt"
+	"net/http"
+	"time"
+)
 
 // CreateTestContext returns a fresh Engine and a Context associated with it.
 // This is useful for tests that need to set up a new Gin engine instance
@@ -29,3 +33,28 @@ func CreateTestContextOnly(w http.ResponseWriter, r *Engine) (c *Context) {
 	c.writermem.reset(w)
 	return
 }
+
+// waitForServerReady waits for a server to be ready by making HTTP requests
+// with exponential backoff. This is more reliable than time.Sleep() for testing.
+func waitForServerReady(url string, maxAttempts int) error {
+	client := &http.Client{
+		Timeout: 100 * time.Millisecond,
+	}
+
+	for i := 0; i < maxAttempts; i++ {
+		resp, err := client.Get(url)
+		if err == nil {
+			resp.Body.Close()
+			return nil
+		}
+
+		// Exponential backoff: 10ms, 20ms, 40ms, 80ms, 160ms...
+		backoff := time.Duration(10*(1<<uint(i))) * time.Millisecond
+		if backoff > 500*time.Millisecond {
+			backoff = 500 * time.Millisecond
+		}
+		time.Sleep(backoff)
+	}
+
+	return fmt.Errorf("server at %s did not become ready after %d attempts", url, maxAttempts)
+}