From 7e489984dde6ae15da894845d7d40b90b72fd07d Mon Sep 17 00:00:00 2001
From: Bo-Yi Wu <appleboy.tw@gmail.com>
Date: Wed, 27 Nov 2019 21:36:35 +0800
Subject: [PATCH] chore: Add RemoveExtraSlash flag

---
 gin.go         | 10 +++++++++-
 routes_test.go |  1 +
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/gin.go b/gin.go
index c194d6bf..f0cd09e4 100644
--- a/gin.go
+++ b/gin.go
@@ -97,6 +97,10 @@ type Engine struct {
 	// method call.
 	MaxMultipartMemory int64
 
+	// RemoveExtraSlash a parameter can be parsed from the URL even with extra slashes.
+	// See the PR #1817 and issue #1644
+	RemoveExtraSlash bool
+
 	delims           render.Delims
 	secureJsonPrefix string
 	HTMLRender       render.HTMLRender
@@ -134,6 +138,7 @@ func New() *Engine {
 		ForwardedByClientIP:    true,
 		AppEngine:              defaultAppEngine,
 		UseRawPath:             false,
+		RemoveExtraSlash:       false,
 		UnescapePathValues:     true,
 		MaxMultipartMemory:     defaultMultipartMemory,
 		trees:                  make(methodTrees, 0, 9),
@@ -385,7 +390,10 @@ func (engine *Engine) handleHTTPRequest(c *Context) {
 		rPath = c.Request.URL.RawPath
 		unescape = engine.UnescapePathValues
 	}
-	rPath = cleanPath(rPath)
+
+	if engine.RemoveExtraSlash {
+		rPath = cleanPath(rPath)
+	}
 
 	// Find root of the tree for the given HTTP method
 	t := engine.trees
diff --git a/routes_test.go b/routes_test.go
index 0c2f9a0c..0c822f6a 100644
--- a/routes_test.go
+++ b/routes_test.go
@@ -263,6 +263,7 @@ func TestRouteParamsByNameWithExtraSlash(t *testing.T) {
 	lastName := ""
 	wild := ""
 	router := New()
+	router.RemoveExtraSlash = true
 	router.GET("/test/:name/:last_name/*wild", func(c *Context) {
 		name = c.Params.ByName("name")
 		lastName = c.Params.ByName("last_name")