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hlsdemux: Make parsing of "-quoted key URIs more resilient

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=730830
This commit is contained in:
Damian Ziobro 2014-05-28 09:18:49 +01:00 committed by Sebastian Dröge
parent 2f39a3d711
commit 5ca7684b7d
1 changed files with 18 additions and 6 deletions
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24
ext/hls/m3u8.c
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@ -479,13 +479,25 @@ gst_m3u8_update (GstM3U8 * self, gchar * data, gboolean * updated)
if (g_str_equal (a, "URI")) {
gchar *key = g_strdup (v);
gchar *keyp = key;
int len = strlen (key);
gchar *key_ret;
/* handle the \"key\" case */
if (key[len - 1] == '"')
key[len - 1] = '\0';
if (key[0] == '"')
key += 1;
/* handle the \"key\" case *
* there are sometimes situations where we have white signs
* before or after \" sign of URL therefore we are using for loops
* in order to remove first and last \" sign from decryption key URI */
key_ret = strchr (key, '"');
if (key_ret != NULL) {
/* found initialization quotation mark key URI */
key = key_ret + 1;
key_ret = strchr (key, '"');
if (key_ret != NULL) {
/* found finalizing quotation mark inside key URI */
key_ret[0] = '\0';
} else {
GST_WARNING
("Decryption key URL parsing - cannot find finalizing quotation mark");
}
}
self->key =
uri_join (self->base_uri ? self->base_uri : self->uri, key);