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path: root/src/net/http/httputil/reverseproxy.go
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Diffstat (limited to 'src/net/http/httputil/reverseproxy.go')
-rw-r--r--src/net/http/httputil/reverseproxy.go23
1 files changed, 22 insertions, 1 deletions
diff --git a/src/net/http/httputil/reverseproxy.go b/src/net/http/httputil/reverseproxy.go
index 6e5bc4753e..70de7b107d 100644
--- a/src/net/http/httputil/reverseproxy.go
+++ b/src/net/http/httputil/reverseproxy.go
@@ -110,6 +110,27 @@ func singleJoiningSlash(a, b string) string {
return a + b
}
+func joinURLPath(a, b *url.URL) (path, rawpath string) {
+ if a.RawPath == "" && b.RawPath == "" {
+ return singleJoiningSlash(a.Path, b.Path), ""
+ }
+ // Same as singleJoiningSlash, but uses EscapedPath to determine
+ // whether a slash should be added
+ apath := a.EscapedPath()
+ bpath := b.EscapedPath()
+
+ aslash := strings.HasSuffix(apath, "/")
+ bslash := strings.HasPrefix(bpath, "/")
+
+ switch {
+ case aslash && bslash:
+ return a.Path + b.Path[1:], apath + bpath[1:]
+ case !aslash && !bslash:
+ return a.Path + "/" + b.Path, apath + "/" + bpath
+ }
+ return a.Path + b.Path, apath + bpath
+}
+
// NewSingleHostReverseProxy returns a new ReverseProxy that routes
// URLs to the scheme, host, and base path provided in target. If the
// target's path is "/base" and the incoming request was for "/dir",
@@ -122,7 +143,7 @@ func NewSingleHostReverseProxy(target *url.URL) *ReverseProxy {
director := func(req *http.Request) {
req.URL.Scheme = target.Scheme
req.URL.Host = target.Host
- req.URL.Path = singleJoiningSlash(target.Path, req.URL.Path)
+ req.URL.Path, req.URL.RawPath = joinURLPath(target, req.URL)
if targetQuery == "" || req.URL.RawQuery == "" {
req.URL.RawQuery = targetQuery + req.URL.RawQuery
} else {