Remove '/./' parts from path

strings.go

@@ -10,6 +10,7 @@ var (
 	strSlash            = []byte("/")
 	strSlashSlash       = []byte("//")
 	strSlashDotDot      = []byte("/..")
+	strSlashDotSlash    = []byte("/./")
 	strSlashDotDotSlash = []byte("/../")
 	strCRLF             = []byte("\r\n")
 	strHTTP             = []byte("http")

uri.go

@@ -263,6 +263,17 @@ func normalizePath(dst, src []byte) []byte {
 		b = b[:len(b)-n+nn]
 	}
 
+	// remove /./ parts
+	for {
+		n := bytes.Index(b, strSlashDotSlash)
+		if n < 0 {
+			break
+		}
+		nn := n + len(strSlashDotSlash) - 1
+		copy(b[n:], b[nn:])
+		b = b[:len(b)-nn+n]
+	}
+
 	// remove trailing /foo/..
 	n := bytes.LastIndex(b, strSlashDotDot)
 	if n >= 0 && n+len(strSlashDotDot) == len(b) {

uri_test.go

@@ -71,6 +71,11 @@ func TestURIPathNormalize(t *testing.T) {
 
 	// fake dotdot
 	testURIPathNormalize(t, &u, "/aaa/..bbb/ccc/..", "/aaa/..bbb/")
+
+	// single dot
+	testURIPathNormalize(t, &u, "/a/./b/././c/./d.html", "/a/b/c/d.html")
+	testURIPathNormalize(t, &u, "./foo/", "/foo/")
+	testURIPathNormalize(t, &u, "./../.././../../aaa/bbb/../../../././../", "/")
 }
 
 func testURIPathNormalize(t *testing.T, u *URI, requestURI, expectedPath string) {