From 0480d24981bec1279852adef98152e5546069a15 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Do=C4=9Fan=20Can=20Bak=C4=B1r?=
 <dogancanbakir@protonmail.com>
Date: Fri, 25 Aug 2023 09:15:33 +0300
Subject: [PATCH] Revert "decode unicode chars"

This reverts commit 25f7bd61afbc2d7236c9c1b42a1eebe1f276df70.
---
 url/url.go      | 15 +--------------
 url/url_test.go | 15 ---------------
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/url/url.go b/url/url.go
index 4d867f9..a7d48a5 100644
--- a/url/url.go
+++ b/url/url.go
@@ -3,8 +3,6 @@ package urlutil
 import (
 	"bytes"
 	"net/url"
-	"regexp"
-	"strconv"
 	"strings"
 
 	errorutil "github.com/projectdiscovery/utils/errors"
@@ -224,19 +222,9 @@ func (u *URL) fetchParams() {
 
 // ParseURL
 func Parse(inputURL string) (*URL, error) {
-	inputURL = decodeUnicodeEscapes(inputURL)
 	return ParseURL(inputURL, false)
 }
 
-// decodeUnicodeEscapes replaces %uXXXX escapes with their actual characters.
-func decodeUnicodeEscapes(inputURL string) string {
-	re := regexp.MustCompile(`%u([0-9a-fA-F]{4})`)
-	return re.ReplaceAllStringFunc(inputURL, func(match string) string {
-		code, _ := strconv.ParseInt(match[2:], 16, 32)
-		return string(rune(code))
-	})
-}
-
 // Parse and return URL
 func ParseURL(inputURL string, unsafe bool) (*URL, error) {
 	u := &URL{
@@ -303,8 +291,7 @@ func ParseURL(inputURL string, unsafe bool) (*URL, error) {
 		// TODO: should use a proper regex to validate hostname/ip
 		// currently domain names without (.) are not considered as valid and autocorrected
 		// if DisableAutoCorrect is false
-		if !stringsutil.HasPrefixAny(inputURL, HTTP+SchemeSeparator, HTTPS+SchemeSeparator, "//") &&
-			!strings.Contains(u.Host, ".") && !strings.Contains(u.Host, ":") && u.Host != "localhost" {
+		if !strings.Contains(u.Host, ".") && !strings.Contains(u.Host, ":") && u.Host != "localhost" {
 			// this does not look like a valid domain , ipv4 or ipv6
 			// consider it as relative
 			if !DisableAutoCorrect {
diff --git a/url/url_test.go b/url/url_test.go
index e128bf3..9dfdd81 100644
--- a/url/url_test.go
+++ b/url/url_test.go
@@ -117,18 +117,3 @@ func TestParseRelativePath(t *testing.T) {
 		require.Equal(t, v.expectedPath, urlx.GetRelativePath())
 	}
 }
-
-func TestUnicodeEscape(t *testing.T) {
-	testcases := []struct {
-		input    string
-		expected string
-	}{
-		{"https://admin/%u002e%u002e/%u002e%u002e/1.txt.it", "https://admin/../../1.txt.it"},
-	}
-
-	for _, v := range testcases {
-		urlx, err := Parse(v.input)
-		require.Nilf(t, err, "got error for url %v", v.input)
-		require.Equal(t, v.expected, urlx.String())
-	}
-}