From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Wed, 25 Apr 2018 17:31:04 +0000 (+0100)
Subject: [Fix] Check URL before adding implicit prefix
X-Git-Tag: 1.7.4~35
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ca2d20981bc6061df455f7f7a2ccb787ad595783;p=thirdparty%2Frspamd.git

[Fix] Check URL before adding implicit prefix

Issue: #2196
---

diff --git a/src/libserver/html.c b/src/libserver/html.c
index 68bd4fc5a7..1ee012388d 100644
--- a/src/libserver/html.c
+++ b/src/libserver/html.c
@@ -1535,8 +1535,15 @@ rspamd_html_process_url (rspamd_mempool_t *pool, const gchar *start, guint len,
 	d = decoded;
 
 	if (no_prefix) {
-		memcpy (d, "http://", sizeof ("http://") - 1);
-		d += sizeof ("http://") - 1;
+		if (s[0] == '/' && (len > 2 && s[1] == '/')) {
+			/* //bla case */
+			memcpy (d, "http:", sizeof ("http:") - 1);
+			d += sizeof ("http:") - 1;
+		}
+		else {
+			memcpy (d, "http://", sizeof ("http://") - 1);
+			d += sizeof ("http://") - 1;
+		}
 	}
 
 	/* We also need to remove all internal newlines and encode unsafe characters */