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rtspsrc: handle stale digest authentication session data

Browse source 
In particular, handle Unauthorized server response when trying to convey
keep-alive.

Fixes #635532.
This commit is contained in:
Mark Nauwelaerts 2010-11-29 15:32:40 +01:00 committed by Tim-Philipp Müller
parent e7b1655069
commit b6b0de0c49
1 changed files with 28 additions and 5 deletions
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33
gst/rtsp/gstrtspsrc.c
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@ -230,6 +230,9 @@ static GstStateChangeReturn gst_rtspsrc_change_state (GstElement * element,
static gboolean gst_rtspsrc_send_event (GstElement * element, GstEvent * event);
static void gst_rtspsrc_handle_message (GstBin * bin, GstMessage * message);
static gboolean gst_rtspsrc_setup_auth (GstRTSPSrc * src,
GstRTSPMessage * response);
static void gst_rtspsrc_loop_send_cmd (GstRTSPSrc * src, gint cmd,
gboolean flush);
static GstRTSPResult gst_rtspsrc_send_cb (GstRTSPExtension * ext,
@ -3651,6 +3654,7 @@ gst_rtspsrc_loop_udp (GstRTSPSrc * src)
gboolean restart = FALSE;
GstRTSPResult res;
GstRTSPMessage message = { 0 };
gint retry = 0;
GST_OBJECT_LOCK (src);
if (src->loop_cmd == CMD_STOP)
@ -3668,6 +3672,7 @@ gst_rtspsrc_loop_udp (GstRTSPSrc * src)
GST_DEBUG_OBJECT (src, "doing receive with timeout %d seconds",
(gint) tv_timeout.tv_sec);
gst_rtsp_message_unset (&message);
/* we should continue reading the TCP socket because the server might
* send us requests. When the session timeout expires, we need to send a
* keep-alive request to keep the session open. */
@ -3719,6 +3724,15 @@ gst_rtspsrc_loop_udp (GstRTSPSrc * src)
GST_DEBUG_OBJECT (src, "ignoring response message");
if (src->debug)
gst_rtsp_message_dump (&message);
if (message.type_data.response.code == GST_RTSP_STS_UNAUTHORIZED) {
GST_DEBUG_OBJECT (src, "but is Unauthorized response ...");
if (gst_rtspsrc_setup_auth (src, &message) && !(retry++)) {
GST_DEBUG_OBJECT (src, "so retrying keep-alive");
gst_rtspsrc_send_keep_alive (src);
}
} else {
retry = 0;
}
break;
case GST_RTSP_MESSAGE_DATA:
/* we ignore response and data messages */
@ -4013,13 +4027,16 @@ gst_rtsp_decode_quoted_string (gchar * quoted_string)
*/
static void
gst_rtspsrc_parse_digest_challenge (GstRTSPConnection * conn,
const gchar * header)
const gchar * header, gboolean * stale)
{
GSList *list = NULL, *iter;
const gchar *end;
gchar *item, *eq, *name_end, *value;
g_return_if_fail (stale != NULL);
gst_rtsp_connection_clear_auth_params (conn);
*stale = FALSE;
/* Parse a header whose content is described by RFC2616 as
* "#something", where "something" does not itself contain commas,
@ -4055,6 +4072,8 @@ gst_rtspsrc_parse_digest_challenge (GstRTSPConnection * conn,
} else
value = NULL;
if ((strcmp (item, "stale") == 0) && (strcmp (value, "TRUE") == 0))
*stale = TRUE;
gst_rtsp_connection_set_auth_param (conn, item, value);
g_free (item);
}
@ -4072,12 +4091,13 @@ gst_rtspsrc_parse_digest_challenge (GstRTSPConnection * conn,
* even parse out the realm */
static void
gst_rtspsrc_parse_auth_hdr (gchar * hdr, GstRTSPAuthMethod * methods,
GstRTSPConnection * conn)
GstRTSPConnection * conn, gboolean * stale)
{
gchar *start;
g_return_if_fail (hdr != NULL);
g_return_if_fail (methods != NULL);
g_return_if_fail (stale != NULL);
/* Skip whitespace at the start of the string */
for (start = hdr; start[0] != '\0' && g_ascii_isspace (start[0]); start++);
@ -4086,7 +4106,7 @@ gst_rtspsrc_parse_auth_hdr (gchar * hdr, GstRTSPAuthMethod * methods,
*methods |= GST_RTSP_AUTH_BASIC;
else if (g_ascii_strncasecmp (start, "digest ", 7) == 0) {
*methods |= GST_RTSP_AUTH_DIGEST;
gst_rtspsrc_parse_digest_challenge (conn, &start[7]);
gst_rtspsrc_parse_digest_challenge (conn, &start[7], stale);
}
}
@ -4115,21 +4135,24 @@ gst_rtspsrc_setup_auth (GstRTSPSrc * src, GstRTSPMessage * response)
GstRTSPUrl *url;
GstRTSPConnection *conn;
gchar *hdr;
gboolean stale = FALSE;
conn = src->conninfo.connection;
/* Identify the available auth methods and see if any are supported */
if (gst_rtsp_message_get_header (response, GST_RTSP_HDR_WWW_AUTHENTICATE,
&hdr, 0) == GST_RTSP_OK) {
gst_rtspsrc_parse_auth_hdr (hdr, &avail_methods, conn);
gst_rtspsrc_parse_auth_hdr (hdr, &avail_methods, conn, &stale);
}
if (avail_methods == GST_RTSP_AUTH_NONE)
goto no_auth_available;
/* FIXME: For digest auth, if the response indicates that the session
/* For digest auth, if the response indicates that the session
* data are stale, we just update them in the connection object and
* return TRUE to retry the request */
if (stale)
src->tried_url_auth = FALSE;
url = gst_rtsp_connection_get_url (conn);