commit 8e8448a: [Minor] Ignore data urls

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2020-07-16 15:55:50 +0100
URL: https://github.com/rspamd/rspamd/commit/8e8448abf85de2de8155c5e844c9287ecfc4f70d

[Minor] Ignore data urls

---
 src/libserver/html.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/libserver/html.c b/src/libserver/html.c
index e5e43aed6..7b570bdc4 100644
--- a/src/libserver/html.c
+++ b/src/libserver/html.c
@@ -1582,9 +1582,13 @@ rspamd_html_process_url_tag (rspamd_mempool_t *pool, struct html_tag *tag,
 				gchar *buf;
 				gsize orig_len;
 
-				if (rspamd_substring_search (start, len, "://", 3) == -1 &&
-					(len >= sizeof ("data:") &&
-					 g_ascii_strncasecmp (start, "data:", sizeof ("data:") - 1) != 0)) {
+				if (rspamd_substring_search (start, len, "://", 3) == -1) {
+
+					if (len >= sizeof ("data:") &&
+						g_ascii_strncasecmp (start, "data:", sizeof ("data:") - 1) == 0) {
+						/* Image data url, never insert as url */
+						return NULL;
+					}
 
 					/* Assume relative url */