Modify the session-initiate handler among other things.
/*
* action-handlers.c
*
* Copyrigth (C) 2010 Nicolas Cornu <nicolas.cornu@ensi-bourges.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
#include <glib.h>
#include <mcabber/logprint.h>
#include <jingle/jingle.h>
#include <jingle/check.h>
#include <jingle/sessions.h>
#include <jingle/register.h>
#include <jingle/send.h>
#include <jingle/action-handlers.h>
/* The session-initiate action is used to request negotiation of a new Jingle
* session. When sending a session-initiate with one <content/> element, the
* value of the <content/> element's 'disposition' attribute MUST be "session"
* (if there are multiple <content/> elements then at least one MUST have a
* disposition of "session"); if this rule is violated, the responder MUST
* return a <bad-request/> error to the initiator.
*/
void handle_session_initiate(LmMessage *m, JingleNode *jn)
{
GError *err = NULL;
GSList *child = NULL;
gboolean valid_disposition = FALSE;
JingleContent *cn;
JingleAppFuncs *appfuncs;
JingleTransportFuncs *transfuncs;
gconstpointer description, transport;
const gchar *xmlns;
if (!check_contents(jn, &err)) {
scr_log_print(LPRINT_DEBUG, "jingle: One of the content element was invalid (%s)",
err->message);
jingle_send_iq_error(m, "cancel", "bad-request", NULL);
return;
}
// a session-initiate message must contains at least one <content> element
if (g_slist_length(jn->content) < 1) {
jingle_send_iq_error(m, "cancel", "bad-request", NULL);
return;
}
/* When sending a session-initiate at least one <content/> element MUST have
* a disposition of "session"); if this rule is violated, the responder MUST
* return a <bad-request/> error to the initiator.
*/
for (child = jn->content; child && !valid_disposition; child = child->next) {
cn = (JingleContent*)(child->data);
if (g_strcmp0(cn->disposition, "session") == 0 || cn->disposition == NULL)
valid_disposition = TRUE;
}
if (!valid_disposition) {
jingle_send_iq_error(m, "cancel", "bad-request", NULL);
return;
}
// if a session with the same sid already exists
if (session_find(jn) != NULL) {
jingle_send_iq_error(m, "cancel", "unexpected-request", "out-of-order");
return;
}
jingle_ack_iq(m);
for (child = jn->content; child; child = child->next) {
cn = (JingleContent *)(child->data);
xmlns = lm_message_node_get_attribute(cn->description, "xmlns");
appfuncs = jingle_get_appfuncs(xmlns);
if (appfuncs == NULL) continue;
xmlns = lm_message_node_get_attribute(cn->transport, "xmlns");
transfuncs = jingle_get_transportfuncs(xmlns);
if (appfuncs == NULL) continue; // negociate another transport ?
description = appfuncs->check(cn, &err);
if (description == NULL || err != NULL) continue;
transport = transfuncs->check(cn, &err);
if (transport == NULL || err != NULL) continue;
}
}
void handle_session_terminate(LmMessage *m, JingleNode *jn)
{
JingleSession *sess;
if ((sess = session_find(jn)) == NULL) {
jingle_send_iq_error(m, "cancel", "item-not-found", "unknown-session");
return;
}
session_delete(sess);
jingle_ack_iq(m);
}