commit 8b74294: [Minor] Fix some corner cases in HTML parsing

[Vsevolod Stakhov]

Author: Vsevolod Stakhov
Date: 2019-10-11 10:46:56 +0100
URL: https://github.com/rspamd/rspamd/commit/8b74294ece38dae6e2a05d79fceab80c8795513a (HEAD -> master)

[Minor] Fix some corner cases in HTML parsing

---
 src/libserver/html.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libserver/html.c b/src/libserver/html.c
index dbbefd10c..de6e104b4 100644
--- a/src/libserver/html.c
+++ b/src/libserver/html.c
@@ -350,7 +350,7 @@ rspamd_html_decode_entitles_inplace (gchar *s, gsize len)
 	khiter_t k;
 
 	if (len == 0) {
-		l = strlen (s);
+		return 0;
 	}
 	else {
 		l = len;
@@ -871,7 +871,10 @@ rspamd_html_parse_tag_component (rspamd_mempool_t *pool,
 	gboolean ret = FALSE;
 	gchar *p;
 
-	g_assert (end >= begin);
+	if (end <= begin) {
+		return FALSE;
+	}
+
 	p = rspamd_mempool_alloc (pool, end - begin);
 	memcpy (p, begin, end - begin);
 	len = rspamd_html_decode_entitles_inplace (p, end - begin);