From 3f44c1320a9c5239d3353d1571e4e1decd4592b9 Mon Sep 17 00:00:00 2001
From: bol-van <k@vodka.home.kg>
Date: Wed, 8 Dec 2021 17:11:00 +0300
Subject: [PATCH] blockcheck: improve bad redirect detection

---
 blockcheck.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/blockcheck.sh b/blockcheck.sh
index d4def65..2de24c8 100755
--- a/blockcheck.sh
+++ b/blockcheck.sh
@@ -154,7 +154,8 @@ curl_test_http()
 	code=$(hdrfile_http_code "$HDRTEMP")
 	[ "$code" = 301 -o "$code" = 302 -o "$code" = 307 -o "$code" = 308 ] && {
 		loc=$(hdrfile_location "$HDRTEMP")
-		[ "${loc#*$2}" = "$loc" ] && {
+		echo "$loc" | grep -qE "^https?://.*$2(/|$)" ||
+		echo "$loc" | grep -vqE '^https?://' || {
 			echo suspicious redirection to : $loc
 			rm -f "$HDRTEMP"
 			return 254