libpurple/protocols/jabber/jingle.c

/*
 * purple - Jabber Protocol Plugin
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
 *
 */

#include "config.h"
#include "purple.h"
#include "jingle.h"
#include "xmlnode.h"
#include "iq.h"

#include <stdlib.h>
#include <string.h>
#include <glib.h>

#ifdef USE_VV

#include <gst/farsight/fs-candidate.h>

#define JINGLE "urn:xmpp:tmp:jingle"
#define JINGLE_RTP "urn:xmpp:tmp:jingle:apps:rtp"
#define JINGLE_RTP_INFO "urn:xmpp:tmp:jingle:apps:rtp:info"
#define TRANSPORT_ICEUDP "urn:xmpp:tmp:jingle:transports:ice-udp"

typedef enum {
	PENDING,
	GOT_ACK,
	ACCEPTED,
	ACTIVE
} JingleSessionState;

typedef struct {
	char *id;
	JabberStream *js;
	PurpleMedia *media;
	char *remote_jid;
	char *initiator;
	gboolean is_initiator;
	JingleSessionState state;
	GHashTable *contents;	/* JingleSessionContent table */
} JingleSession;

typedef struct {
	gchar *name;
	JingleSession *session;
	gchar *creator;
	gchar *sender;
	gchar *transport_type;
	gchar *type;
	gchar *subtype;
} JingleSessionContent;

static void
jabber_jingle_session_content_create_internal(JingleSession *session,
					      const gchar *name,
					      const gchar *creator,
					      const gchar *sender,
					      const gchar *transport_type,
					      const gchar *type,
					      const gchar *subtype)
{
	JingleSessionContent *content = g_new0(JingleSessionContent, 1);
	content->session = session;
	content->name = g_strdup(name);
	content->creator = g_strdup(creator);
	content->sender = g_strdup(sender);
	content->transport_type = g_strdup(transport_type);
	content->type = g_strdup(type);
	content->subtype = g_strdup(subtype);

	if (!session->contents) {
		purple_debug_info("jingle", "Creating hash table for contents\n");
		session->contents = g_hash_table_new(g_str_hash, g_str_equal);
	}
	purple_debug_info("jingle", "inserting content with name == \"%s\" into table\n",
			  content->name);
	g_hash_table_insert(session->contents, content->name, content);
}

static void
jabber_jingle_session_destroy_content(JingleSessionContent *content)
{
	purple_debug_info("jingle", "destroying content with name == \"%s\"\n",
			  content->name);
	g_hash_table_remove(content->session->contents, content->name);
	g_free(content->name);
	g_free(content->creator);
	g_free(content->sender);
	g_free(content->transport_type);
	g_free(content->type);
	g_free(content->subtype);
	g_free(content);
}

static const gchar *
jabber_jingle_session_content_get_name(const JingleSessionContent *jsc)
{
	return jsc->name;
}

static JingleSession *
jabber_jingle_session_content_get_session(const JingleSessionContent *jsc)
{
	return jsc->session;
}

static const gchar *
jabber_jingle_session_content_get_creator(const JingleSessionContent *jsc)
{
	return jsc->creator;
}

static const gchar *
jabber_jingle_session_content_get_sender(const JingleSessionContent *jsc)
{
	return jsc->sender;
}

static const gchar *
jabber_jingle_session_content_get_transport_type(const JingleSessionContent *jsc)
{
	return jsc->transport_type;
}

static gboolean
jabber_jingle_session_content_is_transport_type(const JingleSessionContent *jsc,
						const gchar *transport_type)
{
	return !strcmp(jabber_jingle_session_content_get_transport_type(jsc),
			transport_type);
}

static const gchar *
jabber_jingle_session_content_get_type(const JingleSessionContent *jsc)
{
	return jsc->type;
}

static gboolean
jabber_jingle_session_content_is_type(const JingleSessionContent *jsc,
				      const gchar *type)
{
	return !strcmp(jabber_jingle_session_content_get_type(jsc), type);
}

static gchar *
jabber_jingle_session_content_get_subtype(const JingleSessionContent *jsc)
{
	return jsc->subtype;
}

static gboolean
jabber_jingle_session_content_is_vv_type(const JingleSessionContent *jsc,
					 const gchar *media_type)
{
	return jabber_jingle_session_content_is_type(jsc, JINGLE_RTP) &&
			!strcmp(jabber_jingle_session_content_get_subtype(jsc),
				media_type);
}

static void
jabber_jingle_session_content_set_sender(JingleSessionContent *jsc,
					    const char *sender)
{
	if (jsc->sender)
		g_free(jsc->sender);
	jsc->sender = g_strdup(sender);
}

static gboolean
jabber_jingle_session_equal(gconstpointer a, gconstpointer b)
{
	purple_debug_info("jingle", 
					  "jabber_jingle_session_equal, comparing %s and %s\n",
					  ((JingleSession *)a)->id,
					  ((JingleSession *)b)->id);
	return !strcmp(((JingleSession *) a)->id, ((JingleSession *) b)->id);
}

static JingleSession *
jabber_jingle_session_create_internal(JabberStream *js,
									  const char *id)
{
    JingleSession *sess = g_new0(JingleSession, 1);
	sess->js = js;
		
	if (id) {
		sess->id = g_strdup(id);
	} else if (js) {
		/* init the session ID... */
		sess->id = jabber_get_next_id(js);
	}
	
	/* insert it into the hash table */
	if (!js->sessions) {
		purple_debug_info("jingle", "Creating hash table for sessions\n");
		js->sessions = g_hash_table_new(g_str_hash, g_str_equal);
	}
	purple_debug_info("jingle", "inserting session with key: %s into table\n",
					  sess->id);
	g_hash_table_insert(js->sessions, sess->id, sess);

	sess->state = PENDING;

	return sess;
}

static JabberStream *
jabber_jingle_session_get_js(const JingleSession *sess)
{
	return sess->js;
}

static JingleSession *
jabber_jingle_session_create(JabberStream *js)
{
	JingleSession *sess = jabber_jingle_session_create_internal(js, NULL);
	sess->is_initiator = TRUE;	
	return sess;
}

static JingleSession *
jabber_jingle_session_create_by_id(JabberStream *js, const char *id)
{
	JingleSession *sess = jabber_jingle_session_create_internal(js, id);
	sess->is_initiator = FALSE;
	return sess;
}

static const char *
jabber_jingle_session_get_id(const JingleSession *sess)
{
	return sess->id;
}

static void
jabber_jingle_session_destroy(JingleSession *sess)
{
	GList *contents;
	g_hash_table_remove(sess->js->sessions, sess->id);
	g_free(sess->id);
	g_free(sess->remote_jid);
	g_free(sess->initiator);

	if (sess->media)
		g_object_unref(sess->media);

	for (contents = g_hash_table_get_values(sess->contents); contents;
			contents = g_list_delete_link(contents, contents))
		jabber_jingle_session_destroy_content(contents->data);

	g_free(sess);
}

static JingleSession *
jabber_jingle_session_find_by_id(JabberStream *js, const char *id)
{
	purple_debug_info("jingle", "find_by_id %s\n", id);
	purple_debug_info("jingle", "lookup: %p\n", (js->sessions) ?
			  g_hash_table_lookup(js->sessions, id) : NULL);  
	return (JingleSession *) (js->sessions) ?
			  g_hash_table_lookup(js->sessions, id) : NULL;
}

static JingleSession *
jabber_jingle_session_find_by_jid(JabberStream *js, const char *jid)
{
	GList *values = (js->sessions) ? 
			g_hash_table_get_values(js->sessions) : NULL;
	gboolean use_bare = strchr(jid, '/') == NULL;

	for (; values; values = g_list_delete_link(values, values)) {
		JingleSession *session = (JingleSession *)values->data;
		gchar *cmp_jid = use_bare ? jabber_get_bare_jid(session->remote_jid)
					  : g_strdup(session->remote_jid);
		if (!strcmp(jid, cmp_jid)) {
			g_free(cmp_jid);
			g_list_free(values);
			return session;
		}
		g_free(cmp_jid);
	}

	return NULL;	
}

static GList *
jabber_jingle_get_codecs(xmlnode *description)
{
	GList *codecs = NULL;
	xmlnode *codec_element = NULL;
	const char *encoding_name,*id, *clock_rate;
	FsCodec *codec;
	const gchar *media = xmlnode_get_attrib(description, "media");
	FsMediaType type = !strcmp(media, "video") ? FS_MEDIA_TYPE_VIDEO :
			!strcmp(media, "audio") ? FS_MEDIA_TYPE_AUDIO : 0;

	for (codec_element = xmlnode_get_child(description, "payload-type") ;
		 codec_element ;
		 codec_element = xmlnode_get_next_twin(codec_element)) {
		xmlnode *param;
		gchar *codec_str;
		encoding_name = xmlnode_get_attrib(codec_element, "name");

		id = xmlnode_get_attrib(codec_element, "id");
		clock_rate = xmlnode_get_attrib(codec_element, "clockrate");

		codec = fs_codec_new(atoi(id), encoding_name, 
				     type, 
				     clock_rate ? atoi(clock_rate) : 0);

		for (param = xmlnode_get_child(codec_element, "parameter");
				param; param = xmlnode_get_next_twin(param)) {
			fs_codec_add_optional_parameter(codec,
					xmlnode_get_attrib(param, "name"),
					xmlnode_get_attrib(param, "value"));
		}

		codec_str = fs_codec_to_string(codec);
		purple_debug_fatal("jingle", "received codec: %s\n", codec_str);
		g_free(codec_str);

		codecs = g_list_append(codecs, codec);
	}
	return codecs;
}

static GList *
jabber_jingle_get_candidates(const xmlnode *transport)
{
	GList *candidates = NULL;
	xmlnode *candidate = NULL;
	FsCandidate *c;
	
	for (candidate = xmlnode_get_child(transport, "candidate") ;
		 candidate ;
		 candidate = xmlnode_get_next_twin(candidate)) {
		const char *type = xmlnode_get_attrib(candidate, "type");
		c = fs_candidate_new(xmlnode_get_attrib(candidate, "component"), 
							atoi(xmlnode_get_attrib(candidate, "component")),
							strcmp(type, "host") == 0 ?
							FS_CANDIDATE_TYPE_HOST :
							strcmp(type, "prflx") == 0 ?
							FS_CANDIDATE_TYPE_PRFLX :
							strcmp(type, "relay") == 0 ?
							FS_CANDIDATE_TYPE_RELAY :
							strcmp(type, "srflx") == 0 ?
							FS_CANDIDATE_TYPE_SRFLX : 0,
							strcmp(xmlnode_get_attrib(candidate, "protocol"),
							  "udp") == 0 ? 
				 				FS_NETWORK_PROTOCOL_UDP :
				 				FS_NETWORK_PROTOCOL_TCP,
							xmlnode_get_attrib(candidate, "ip"),
							atoi(xmlnode_get_attrib(candidate, "port")));
		candidates = g_list_append(candidates, c);
	}
	
	return candidates;
}

static JingleSessionContent *
jabber_jingle_session_get_content(const JingleSession *session,
				  const char *name)
{
	return (JingleSession *) name ?
			g_hash_table_lookup(session->contents, name) : NULL;
}

static GList *
jabber_jingle_session_get_contents(const JingleSession *session)
{
	return g_hash_table_get_values(session->contents);
}

static PurpleMedia *
jabber_jingle_session_get_media(const JingleSession *sess)
{
	return sess->media;
}

static void
jabber_jingle_session_set_media(JingleSession *sess, PurpleMedia *media)
{
	sess->media = media;
}

static const char *
jabber_jingle_session_get_remote_jid(const JingleSession *sess)
{
	return sess->remote_jid;
}

static void
jabber_jingle_session_set_remote_jid(JingleSession *sess, 
				     const char *remote_jid)
{
	if (sess->remote_jid)
		g_free(sess->remote_jid);
	sess->remote_jid = g_strdup(remote_jid);
}

static JingleSessionState
jabber_jingle_session_get_state(JingleSession *sess)
{
	return sess->state;
}

static void
jabber_jingle_session_set_state(JingleSession *sess,
				JingleSessionState state)
{
	sess->state = state;
}
				

static const char *
jabber_jingle_session_get_initiator(const JingleSession *sess)
{
	return sess->initiator;
}

static void
jabber_jingle_session_set_initiator(JingleSession *sess,
				    const char *initiator)
{
	if (sess->initiator)
		g_free(sess->initiator);
	sess->initiator = g_strdup(initiator);
}

static gboolean
jabber_jingle_session_is_initiator(const JingleSession *sess)
{
	return sess->is_initiator;
}

static void
jabber_jingle_session_add_payload_types(const JingleSessionContent *jsc,
					xmlnode *description,
					GList *codecs)
{
	for (; codecs ; codecs = codecs->next) {
		FsCodec *codec = (FsCodec*)codecs->data;
		GList *iter = codec->optional_params;
		char id[8], clockrate[10], channels[10];
		gchar *codec_str;
		xmlnode *payload = xmlnode_new_child(description, "payload-type");
		
		g_snprintf(id, sizeof(id), "%d", codec->id);
		g_snprintf(clockrate, sizeof(clockrate), "%d", codec->clock_rate);
		g_snprintf(channels, sizeof(channels), "%d", codec->channels);
		
		xmlnode_set_attrib(payload, "name", codec->encoding_name);
		xmlnode_set_attrib(payload, "id", id);
		xmlnode_set_attrib(payload, "clockrate", clockrate);
		xmlnode_set_attrib(payload, "channels", channels);

		for (; iter; iter = g_list_next(iter)) {
			FsCodecParameter *fsparam = iter->data;
			xmlnode *param = xmlnode_new_child(payload, "parameter");
			xmlnode_set_attrib(param, "name", fsparam->name);
			xmlnode_set_attrib(param, "value", fsparam->value);
		}

		codec_str = fs_codec_to_string(codec);
		purple_debug_fatal("jingle", "adding codec: %s\n", codec_str);
		g_free(codec_str);
	}
}

static xmlnode *
jabber_jingle_session_add_description_vv(const JingleSessionContent *jsc,
					 xmlnode *description)
{
	xmlnode_set_attrib(description, "media", 
			jabber_jingle_session_content_get_subtype(jsc));
	return description;
}

static xmlnode *
jabber_jingle_session_add_description(const JingleSessionContent *jsc,
				      xmlnode *content)
{
	xmlnode *description = xmlnode_new_child(content, "description");
	xmlnode_set_namespace(description,
			jabber_jingle_session_content_get_type(jsc));

	if (jabber_jingle_session_content_is_type(jsc, JINGLE_RTP))
		return jabber_jingle_session_add_description_vv(jsc, description);
	else
		return description;
}

static xmlnode *
jabber_jingle_session_add_candidate_iceudp(xmlnode *transport,
					   FsCandidate *c,
					   FsCandidate *remote)
{
	char port[8];
	char prio[8];
	char component[8];
	xmlnode *candidate = xmlnode_new_child(transport, "candidate");
	
	g_snprintf(port, sizeof(port), "%d", c->port);
	g_snprintf(prio, sizeof(prio), "%d", c->priority);
	g_snprintf(component, sizeof(component), "%d", c->component_id);
	
	xmlnode_set_attrib(candidate, "component", component);
	xmlnode_set_attrib(candidate, "foundation", "1"); /* what about this? */
	xmlnode_set_attrib(candidate, "generation", "0"); /* ? */
	xmlnode_set_attrib(candidate, "ip", c->ip);
	xmlnode_set_attrib(candidate, "network", "0"); /* ? */
	xmlnode_set_attrib(candidate, "port", port);
	xmlnode_set_attrib(candidate, "priority", prio); /* Is this correct? */
	xmlnode_set_attrib(candidate, "protocol",
			   c->proto == FS_NETWORK_PROTOCOL_UDP ?
			   "udp" : "tcp");
	if (c->username)
		xmlnode_set_attrib(transport, "ufrag", c->username);
	if (c->password)
		xmlnode_set_attrib(transport, "pwd", c->password);
	
	xmlnode_set_attrib(candidate, "type", 
			   c->type == FS_CANDIDATE_TYPE_HOST ? 
			   "host" :
			   c->type == FS_CANDIDATE_TYPE_PRFLX ? 
			   "prflx" :
		       	   c->type == FS_CANDIDATE_TYPE_RELAY ? 
			   "relay" :
			   c->type == FS_CANDIDATE_TYPE_SRFLX ?
			   "srflx" : NULL);

	/* relay */
	if (c->type == FS_CANDIDATE_TYPE_RELAY) {
		/* set rel-addr and rel-port? How? */
	}

	if (remote) {
		char remote_port[8];
		g_snprintf(remote_port, sizeof(remote_port), "%d", remote->port);
		xmlnode_set_attrib(candidate, "rem-addr", remote->ip);
		xmlnode_set_attrib(candidate, "rem-port", remote_port);
	}

	return candidate;
}

static xmlnode *
jabber_jingle_session_add_transport(const JingleSessionContent *jsc,
				    xmlnode *content)
{
	xmlnode *transport = xmlnode_new_child(content, "transport");
	const gchar *transport_type = jabber_jingle_session_content_get_transport_type(jsc);
	xmlnode_set_namespace(transport, transport_type);
	return transport;
}

static xmlnode *
jabber_jingle_session_add_content(const JingleSessionContent *jsc,
				  xmlnode *jingle)
{
	xmlnode *content = xmlnode_new_child(jingle, "content");
	xmlnode_set_attrib(content, "creator",
			   jabber_jingle_session_content_get_creator(jsc));
	xmlnode_set_attrib(content, "name",
			   jabber_jingle_session_content_get_name(jsc));
	xmlnode_set_attrib(content, "sender",
			   jabber_jingle_session_content_get_sender(jsc));
	return content;
}


static xmlnode *
jabber_jingle_session_add_jingle(const JingleSession *sess,
				 JabberIq *iq, const char *action)
{
	xmlnode *jingle = iq ? xmlnode_new_child(iq->node, "jingle") : 
				xmlnode_new("jingle");
	xmlnode_set_namespace(jingle, JINGLE);
	xmlnode_set_attrib(jingle, "action", action);
	xmlnode_set_attrib(jingle, "initiator", 
			   jabber_jingle_session_get_initiator(sess));
	if (jabber_jingle_session_is_initiator(sess))
		xmlnode_set_attrib(jingle, "responder",
				jabber_jingle_session_get_remote_jid(sess));
	else {
		gchar *responder = g_strdup_printf("%s@%s/%s",
				sess->js->user->node,
				sess->js->user->domain,
				sess->js->user->resource);
		xmlnode_set_attrib(jingle, "responder", responder);
		g_free(responder);
	}
	xmlnode_set_attrib(jingle, "sid", jabber_jingle_session_get_id(sess));
	
	return jingle;
}

static JabberIq *
jabber_jingle_session_create_ack(JingleSession *session, xmlnode *jingle)
{
	JabberIq *result = jabber_iq_new(
			jabber_jingle_session_get_js(session),
			JABBER_IQ_RESULT);
	xmlnode *packet = xmlnode_get_parent(jingle);
	jabber_iq_set_id(result, xmlnode_get_attrib(packet, "id"));
	xmlnode_set_attrib(result->node, "from", xmlnode_get_attrib(packet, "to"));
	xmlnode_set_attrib(result->node, "to", xmlnode_get_attrib(packet, "from"));
	return result;
}

static JabberIq *
jabber_jingle_session_create_iq(const JingleSession *session)
{
	JabberIq *result = jabber_iq_new(jabber_jingle_session_get_js(session),
					 JABBER_IQ_SET);
	gchar *from = g_strdup_printf("%s@%s/%s", session->js->user->node,
				      session->js->user->domain,
				      session->js->user->resource);
	xmlnode_set_attrib(result->node, "from", from);
	g_free(from);
	xmlnode_set_attrib(result->node, "to",
			   jabber_jingle_session_get_remote_jid(session));
	return result;
}
#if 0
static xmlnode *
jabber_jingle_session_create_content_accept(const JingleSession *sess)
{
	xmlnode *jingle = 
		jabber_jingle_session_add_jingle(sess, NULL, "content-accept");

	xmlnode *content = xmlnode_new_child(jingle, "content");
	xmlnode *description = jabber_jingle_session_create_description(sess);

	xmlnode_set_attrib(content, "creator", "initiator");
	xmlnode_set_attrib(content, "name", "audio-content");
	xmlnode_set_attrib(content, "profile", "RTP/AVP");

	xmlnode_insert_child(content, description);

	return jingle;
}

static xmlnode *
jabber_jingle_session_create_content_replace(const JingleSession *sess,
					     FsCandidate *native_candidate,
					     FsCandidate *remote_candidate)
{
	xmlnode *jingle = 
		jabber_jingle_session_add_jingle(sess, NULL, "content-replace");
	xmlnode *content = NULL;
	xmlnode *transport = NULL;

	purple_debug_info("jingle", "creating content-modify for native candidate %s " \
			  ", remote candidate %s\n", native_candidate->candidate_id,
			  remote_candidate->candidate_id);

	content = xmlnode_new_child(jingle, "content");
	xmlnode_set_attrib(content, "creator", "initiator");
	xmlnode_set_attrib(content, "name", "audio-content");
	xmlnode_set_attrib(content, "profile", "RTP/AVP");
	
	/* get top codec from codec_intersection to put here... */
	/* later on this should probably handle changing codec */

	xmlnode_insert_child(content, jabber_jingle_session_create_description(sess));

	transport = xmlnode_new_child(content, "transport");
	xmlnode_set_namespace(transport, TRANSPORT_ICEUDP);
	jabber_jingle_session_add_candidate_iceudp(transport, native_candidate,
						   remote_candidate);

	purple_debug_info("jingle", "End create content modify\n");
	
	return jingle;
}
#endif

static JabberIq *
jabber_jingle_session_create_session_accept(const JingleSession *session)
{
	PurpleMedia *media = jabber_jingle_session_get_media(session);
	const gchar *remote_jid = jabber_jingle_session_get_remote_jid(session);
	JabberIq *request = jabber_jingle_session_create_iq(session);
	xmlnode *jingle =
		jabber_jingle_session_add_jingle(session, request,
						 "session-accept");
	GList *contents = jabber_jingle_session_get_contents(session);

	for (; contents; contents = contents->next) {
		JingleSessionContent *jsc = contents->data;
		const gchar *content_name = jabber_jingle_session_content_get_name(jsc);
		xmlnode *content = jabber_jingle_session_add_content(jsc, jingle);
		xmlnode *description = jabber_jingle_session_add_description(jsc, content);
		xmlnode *transport = jabber_jingle_session_add_transport(jsc, content);
		if (jabber_jingle_session_content_is_type(jsc, JINGLE_RTP)) {
			GList *codecs = purple_media_get_negotiated_codecs(media,
									   content_name);
			jabber_jingle_session_add_payload_types(jsc, description, codecs);
			fs_codec_list_destroy(codecs);
		}
		if (jabber_jingle_session_content_is_transport_type(jsc, TRANSPORT_ICEUDP)) {
			jabber_jingle_session_add_candidate_iceudp(transport, 
					purple_media_get_local_candidate(media, content_name,
									 remote_jid),
					purple_media_get_remote_candidate(media, content_name,
									  remote_jid));
		}
	}

	return request;
}

static JabberIq *
jabber_jingle_session_create_session_info(const JingleSession *session,
					  const gchar *type)
{
	JabberIq *request = jabber_jingle_session_create_iq(session);
	xmlnode *jingle =
		jabber_jingle_session_add_jingle(session, request,
						 "session-info");
	xmlnode *info = xmlnode_new_child(jingle, type);
	xmlnode_set_namespace(info, JINGLE_RTP_INFO);
	return request;
}

static JabberIq *
jabber_jingle_session_create_session_initiate(const JingleSession *session)
{
	JabberIq *request = jabber_jingle_session_create_iq(session);
	xmlnode *jingle =
		jabber_jingle_session_add_jingle(session, request,
						 "session-initiate");
	GList *contents = jabber_jingle_session_get_contents(session);

	for (; contents; contents = contents->next) {
		JingleSessionContent *jsc = contents->data;
		xmlnode *content = jabber_jingle_session_add_content(jsc, jingle);
		xmlnode *description = jabber_jingle_session_add_description(jsc, content);
		if (jabber_jingle_session_content_is_type(jsc, JINGLE_RTP)) {
			PurpleMedia *media = jabber_jingle_session_get_media(session);
			const gchar *content_name =
					jabber_jingle_session_content_get_name(jsc);
			GList *codecs = purple_media_get_local_codecs(media, content_name);
			jabber_jingle_session_add_payload_types(jsc, description, codecs);
			fs_codec_list_destroy(codecs);
		}
		jabber_jingle_session_add_transport(jsc, content);
	}

	return request;
}

static JabberIq *
jabber_jingle_session_create_session_terminate(const JingleSession *sess,
					       const char *reasoncode,
					       const char *reasontext)
{
	JabberIq *request = jabber_jingle_session_create_iq(sess);
	xmlnode *jingle = 
		jabber_jingle_session_add_jingle(sess, request,
						 "session-terminate");
	xmlnode *reason = xmlnode_new_child(jingle, "reason");
	xmlnode_new_child(reason, reasoncode);
	if (reasontext) {
		xmlnode *text = xmlnode_new_child(reason, "text");
		xmlnode_insert_data(text, reasontext, strlen(reasontext));
	}
	
	return request;
}

static JabberIq *
jabber_jingle_session_create_transport_info(const JingleSessionContent *jsc,
					    FsCandidate *candidate)
{
	JingleSession *session = 
			jabber_jingle_session_content_get_session(jsc);
	JabberIq *request = jabber_jingle_session_create_iq(session);
	xmlnode *jingle =
		jabber_jingle_session_add_jingle(session, request,
						 "transport-info");
	xmlnode *content = jabber_jingle_session_add_content(jsc, jingle);
	xmlnode *transport = jabber_jingle_session_add_transport(jsc, content);
	jabber_jingle_session_add_candidate_iceudp(transport, candidate, NULL);
	return request;
}
#if 0
static void
jabber_jingle_session_send_content_accept(JingleSession *session)
{
	JabberIq *result = jabber_iq_new(jabber_jingle_session_get_js(session),
					 JABBER_IQ_SET);
	xmlnode *jingle = jabber_jingle_session_create_content_accept(session);
	xmlnode_set_attrib(result->node, "to",
			   jabber_jingle_session_get_remote_jid(session));

	xmlnode_insert_child(result->node, jingle);
	jabber_iq_send(result);
}
#endif

static void
jabber_jingle_session_accept(JingleSession *session)
{
	if (jabber_jingle_session_get_state(session) == ACCEPTED &&
			purple_media_candidates_prepared(
				jabber_jingle_session_get_media(session),
				jabber_jingle_session_get_remote_jid(session))) {
		jabber_iq_send(jabber_jingle_session_create_session_accept(session));
		
		purple_debug_info("jingle", "Sent session accept.\n");
		jabber_jingle_session_set_state(session, ACTIVE);
	}
}

static void
jabber_jingle_session_send_session_accept(JingleSession *session)
{
	/* create transport-info packages */
	PurpleMedia *media = jabber_jingle_session_get_media(session);
	GList *contents = jabber_jingle_session_get_contents(session);
	const gchar *remote_jid = jabber_jingle_session_get_remote_jid(session);
	for (; contents; contents = contents->next) {
		JingleSessionContent *jsc = contents->data;
		GList *candidates = purple_media_get_local_candidates(
				media,
				jabber_jingle_session_content_get_name(jsc),
				remote_jid);
		purple_debug_info("jingle",
				  "jabber_session_candidates_prepared: %d candidates\n",
				  g_list_length(candidates));
		for (; candidates; candidates = candidates->next) {
			FsCandidate *candidate = candidates->data;
			JabberIq *result = jabber_jingle_session_create_transport_info(jsc,
					candidate);
			jabber_iq_send(result);
		}
		fs_candidate_list_destroy(candidates);

		purple_debug_info("jingle", "codec intersection: %i\n",
				g_list_length(purple_media_get_negotiated_codecs(media,
				jabber_jingle_session_content_get_name(jsc))));
	}

	jabber_jingle_session_set_state(session, ACCEPTED);
	jabber_jingle_session_accept(session);
}

static void
jabber_jingle_session_send_session_reject(JingleSession *session)
{
	jabber_iq_send(jabber_jingle_session_create_session_terminate(session,
			"decline", NULL));
	jabber_jingle_session_destroy(session);
}

static void
jabber_jingle_session_send_session_terminate(JingleSession *session)
{
	jabber_iq_send(jabber_jingle_session_create_session_terminate(session,
			"no-error", NULL));
	jabber_jingle_session_destroy(session);
}

static void
jabber_jingle_session_content_create_media(JingleSession *session,
					     PurpleMediaSessionType type)
{
	gchar sender[10] = "";

	if (type & PURPLE_MEDIA_AUDIO) {
		if ((type & PURPLE_MEDIA_AUDIO) == PURPLE_MEDIA_SEND_AUDIO)
			strcpy(sender, "initiator");
		else if ((type & PURPLE_MEDIA_AUDIO) == PURPLE_MEDIA_RECV_AUDIO)
			strcpy(sender, "responder");
		else
			strcpy(sender, "both");
		jabber_jingle_session_content_create_internal(session,
				"audio-content", "initiator", sender,
				TRANSPORT_ICEUDP, JINGLE_RTP, "audio");
	}
	if (type & PURPLE_MEDIA_VIDEO) {
		if ((type & PURPLE_MEDIA_VIDEO) == PURPLE_MEDIA_SEND_VIDEO)
			strcpy(sender, "initiator");
		else if ((type & PURPLE_MEDIA_VIDEO) == PURPLE_MEDIA_RECV_VIDEO)
			strcpy(sender, "responder");
		else
			strcpy(sender, "both");
		jabber_jingle_session_content_create_internal(session,
				"video-content", "initiator", sender,
				TRANSPORT_ICEUDP, JINGLE_RTP, "video");
	}
}

static void
jabber_jingle_session_content_create_parse(JingleSession *session,
					   xmlnode *content)
{
	xmlnode *description = xmlnode_get_child(content, "description");
	xmlnode *transport = xmlnode_get_child(content, "transport");

	const gchar *creator = xmlnode_get_attrib(content, "creator");
	const gchar *sender = xmlnode_get_attrib(content, "sender");
	const gchar *subtype = xmlnode_get_attrib(description, "media");

	jabber_jingle_session_content_create_internal(session,
						      xmlnode_get_attrib(content, "name"),
						      creator ? creator : "initiator",
						      sender ? sender : "both",
						      xmlnode_get_namespace(transport),
						      xmlnode_get_namespace(description),
						      subtype);
}

static void
jabber_jingle_session_new_candidate_cb(PurpleMedia *media,
				       const gchar *session_id,
				       const gchar *name,
				       FsCandidate *candidate,
				       JingleSession *session)
{
	if (jabber_jingle_session_get_state(session) == GOT_ACK ||
			jabber_jingle_session_get_state(session) == ACTIVE) {
		JingleSessionContent *jsc = jabber_jingle_session_get_content(session,
									      session_id);
		jabber_iq_send(jabber_jingle_session_create_transport_info(jsc,
				candidate));
	}
}

/* callback called when a pair of transport candidates (local and remote)
	has been established */
static void
jabber_jingle_session_candidate_pair_established_cb(PurpleMedia *media,
						    FsCandidate *native_candidate,
						    FsCandidate *remote_candidate,
						    JingleSession *session)
{
	if (!jabber_jingle_session_is_initiator(session)) {
		jabber_jingle_session_accept(session);
	}
}

static void
jabber_jingle_session_initiate_result_cb(JabberStream *js, xmlnode *packet, gpointer data)
{
	const char *from = xmlnode_get_attrib(packet, "from");
	JingleSession *session = jabber_jingle_session_find_by_jid(js, from);
	PurpleMedia *media;
	GList *contents;

	if (!session) {
		/* respond with an error here */
		purple_debug_error("jingle", "Received session-initiate ack"
				   " to nonexistent session\n");
		return;
	}

	media = session->media;

	if (!strcmp(xmlnode_get_attrib(packet, "type"), "error")) {
		purple_media_got_hangup(media);
		return;
	}

	/* catch errors */
	if (xmlnode_get_child(packet, "error")) {
		purple_media_got_hangup(media);
		return;
	}

	/* create transport-info packages */
	contents = jabber_jingle_session_get_contents(session);
	for (; contents; contents = contents->next) {
		JingleSessionContent *jsc = contents->data;
		GList *candidates = purple_media_get_local_candidates(
				jabber_jingle_session_get_media(session),
				jabber_jingle_session_content_get_name(jsc),
				jabber_jingle_session_get_remote_jid(session));
		purple_debug_info("jingle",
				  "jabber_session_candidates_prepared: %d candidates\n",
				  g_list_length(candidates));
		for (; candidates; candidates = candidates->next) {
			FsCandidate *candidate = candidates->data;
			JabberIq *result = jabber_jingle_session_create_transport_info(jsc,
					candidate);
			jabber_iq_send(result);
		}
		fs_candidate_list_destroy(candidates);
	}

	jabber_jingle_session_set_state(session, GOT_ACK);
}

static void
jabber_jingle_session_codecs_ready_cb(PurpleMedia *media,
				      const gchar *sess_id,
				      JingleSession *session)
{
	GList *contents = jabber_jingle_session_get_contents(session);
	for (; contents; contents = g_list_delete_link(contents, contents)) {
		JingleSessionContent *jsc = contents->data;
		if (!purple_media_codecs_ready(media,
				jabber_jingle_session_content_get_name(jsc))) {
			break;
		}
	}

	if (contents != NULL)
		g_list_free(contents);
	else if (jabber_jingle_session_is_initiator(session)
			&& jabber_jingle_session_get_state(session) == PENDING) {
		JabberIq *request;

		/* create request */
		request = jabber_jingle_session_create_session_initiate(session);
		jabber_iq_set_callback(request, jabber_jingle_session_initiate_result_cb, NULL);

		/* send request to other part */	
		jabber_iq_send(request);
	} else {
		jabber_jingle_session_accept(session);
	}
}

static gboolean
jabber_jingle_session_initiate_media_internal(JingleSession *session,
					      const char *initiator,
					      const char *remote_jid)
{
	PurpleMedia *media = NULL;
	GList *contents = jabber_jingle_session_get_contents(session);

	media = purple_media_manager_create_media(purple_media_manager_get(), 
						  session->js->gc, "fsrtpconference", remote_jid);

	jabber_jingle_session_set_remote_jid(session, remote_jid);
	jabber_jingle_session_set_initiator(session, initiator);

	if (!media) {
		purple_debug_error("jingle", "Couldn't create media session\n");
		return FALSE;
	}

	jabber_jingle_session_set_media(session, media);

	for (; contents; contents = g_list_delete_link(contents, contents)) {
		JingleSessionContent *jsc = contents->data;
		gboolean result = FALSE;
		const gchar *sender = jabber_jingle_session_content_get_sender(jsc);
		FsStreamDirection direction = FS_DIRECTION_NONE;

		if (!strcmp(sender, "initiator"))
			direction = FS_DIRECTION_SEND;
		else if(!strcmp(sender, "responder"))
			direction = FS_DIRECTION_RECV;
		else
			direction = FS_DIRECTION_BOTH;

		if (!jabber_jingle_session_is_initiator(session)
				&& direction != FS_DIRECTION_BOTH) {
			if (direction == FS_DIRECTION_SEND)
				direction = FS_DIRECTION_RECV;
			else
				direction = FS_DIRECTION_SEND;
		}

		/* these will need to be changed to "nice" once the libnice transmitter is finished */
		if (jabber_jingle_session_content_is_vv_type(jsc, "audio")) {
			result = purple_media_add_stream(media, "audio-content", remote_jid,
					purple_media_from_fs(FS_MEDIA_TYPE_AUDIO, direction),
					"rawudp", 0, NULL);
			purple_debug_info("jingle", "Created Jingle audio session\n");
		}
		else if (jabber_jingle_session_content_is_vv_type(jsc, "video")) {
			result = purple_media_add_stream(media, "video-content", remote_jid,
					purple_media_from_fs(FS_MEDIA_TYPE_VIDEO, direction),
					"rawudp", 0, NULL);
			purple_debug_info("jingle", "Created Jingle video session\n");
		}

		if (!result) {
			purple_debug_error("jingle", "Couldn't create stream\n");
			purple_media_hangup(media);
			return FALSE;
		}
	}

	/* connect callbacks */
	g_signal_connect_swapped(G_OBJECT(media), "accepted", 
				 G_CALLBACK(jabber_jingle_session_send_session_accept), session);
	g_signal_connect_swapped(G_OBJECT(media), "reject", 
				 G_CALLBACK(jabber_jingle_session_send_session_reject), session);
	g_signal_connect_swapped(G_OBJECT(media), "hangup", 
				 G_CALLBACK(jabber_jingle_session_send_session_terminate), session);
	g_signal_connect(G_OBJECT(media), "new-candidate", 
				 G_CALLBACK(jabber_jingle_session_new_candidate_cb), session);
	g_signal_connect(G_OBJECT(media), "candidate-pair", 
				 G_CALLBACK(jabber_jingle_session_candidate_pair_established_cb), session);
	g_signal_connect(G_OBJECT(media), "codecs-ready", 
				 G_CALLBACK(jabber_jingle_session_codecs_ready_cb), session);

	purple_media_ready(media);

	return TRUE;
}

PurpleMedia *
jabber_jingle_session_initiate_media(JabberStream *js, const char *who, 
				     PurpleMediaSessionType type)
{
	/* create content negotiation */
	JingleSession *session;
	JabberBuddy *jb;
	JabberBuddyResource *jbr;
	
	char *jid = NULL, *me = NULL;

	/* construct JID to send to */
	jb = jabber_buddy_find(js, who, FALSE);
	if (!jb) {
		purple_debug_error("jingle", "Could not find Jabber buddy\n");
		return NULL;
	}
	jbr = jabber_buddy_find_resource(jb, NULL);
	if (!jbr) {
		purple_debug_error("jingle", "Could not find buddy's resource\n");
	}

	if ((strchr(who, '/') == NULL) && jbr && (jbr->name != NULL)) {
		jid = g_strdup_printf("%s/%s", who, jbr->name);
	} else {
		jid = g_strdup(who);
	}
	
	session = jabber_jingle_session_create(js);
	jabber_jingle_session_content_create_media(session, type);

	/* set ourselves as initiator */
	me = g_strdup_printf("%s@%s/%s", js->user->node, js->user->domain, js->user->resource);

	if (!jabber_jingle_session_initiate_media_internal(session, me, jid)) {
		g_free(jid);
		g_free(me);
		jabber_jingle_session_destroy(session);
		return NULL;
	}

	g_free(jid);
	g_free(me);

	return session->media;
}

void
jabber_jingle_session_terminate_session_media(JabberStream *js, const gchar *who)
{
	JingleSession *session;

	session = jabber_jingle_session_find_by_jid(js, who);

	if (session)
		purple_media_hangup(session->media);
}

void
jabber_jingle_session_terminate_sessions(JabberStream *js)
{
	GList *values = js->sessions ?
			g_hash_table_get_values(js->sessions) : NULL;

	for (; values; values = g_list_delete_link(values, values)) {
		JingleSession *session = (JingleSession *)values->data;
		purple_media_hangup(session->media);
	}
}

static void
jabber_jingle_session_handle_content_replace(JingleSession *session, xmlnode *jingle)
{
#if 0
	xmlnode *jingle = xmlnode_get_child(packet, "jingle");
	const char *sid = xmlnode_get_attrib(jingle, "sid");
	JingleSession *session = jabber_jingle_session_find_by_id(js, sid);

	if (!jabber_jingle_session_is_initiator(session) && session->session_started) {
		JabberIq *result = jabber_iq_new(js, JABBER_IQ_RESULT);
		JabberIq *accept = jabber_iq_new(js, JABBER_IQ_SET);
		xmlnode *content_accept = NULL;

		/* send acknowledement */
		xmlnode_set_attrib(result->node, "id", xmlnode_get_attrib(packet, "id"));
		xmlnode_set_attrib(result->node, "to", xmlnode_get_attrib(packet, "from"));
		jabber_iq_send(result);

		/* send content-accept */
		content_accept = jabber_jingle_session_create_content_accept(session);
		xmlnode_set_attrib(accept->node, "id", xmlnode_get_attrib(packet, "id"));
		xmlnode_set_attrib(accept->node, "to", xmlnode_get_attrib(packet, "from"));
		xmlnode_insert_child(accept->node, content_accept);

		jabber_iq_send(accept);
	}
#endif
}

static void
jabber_jingle_session_handle_session_accept(JingleSession *session, xmlnode *jingle)
{
	xmlnode *content = xmlnode_get_child(jingle, "content");
	const char *action = xmlnode_get_attrib(jingle, "action");
	GList *remote_codecs = NULL;
	GList *remote_transports = NULL;
	GList *codec_intersection;
	FsCodec *top = NULL;
	xmlnode *description = NULL;
	xmlnode *transport = NULL;

	/* We should probably check validity of the incoming XML... */

	for (content = xmlnode_get_child(jingle, "content"); content;
			content = xmlnode_get_next_twin(content)) {
		description = xmlnode_get_child(content, "description");
		transport = xmlnode_get_child(content, "transport");

		/* fetch codecs from remote party */
		purple_debug_info("jingle", "get codecs from session-accept\n");
		remote_codecs = jabber_jingle_get_codecs(description);
		purple_debug_info("jingle", "get transport candidates from session accept\n");
		remote_transports = jabber_jingle_get_candidates(transport);

		purple_debug_info("jingle", "Got %d codecs from responder\n",
				  g_list_length(remote_codecs));
		purple_debug_info("jingle", "Got %d transport candidates from responder\n",
				  g_list_length(remote_transports));

		purple_debug_info("jingle", "Setting remote codecs on stream\n");

		if (!purple_media_set_remote_codecs(session->media,
						    xmlnode_get_attrib(content, "name"),
						    jabber_jingle_session_get_remote_jid(session),
						    remote_codecs)) {
			purple_media_reject(jabber_jingle_session_get_media(session));
			return;
		}

		codec_intersection = purple_media_get_negotiated_codecs(session->media,
									xmlnode_get_attrib(content, "name"));
		purple_debug_info("jingle", "codec_intersection contains %d elems\n",
				  g_list_length(codec_intersection));
		/* get the top codec */
		if (g_list_length(codec_intersection) > 0) {
			top = (FsCodec *) codec_intersection->data;
			purple_debug_info("jingle", "Found a suitable codec on stream = %d\n",
					  top->id);

			/* we have found a suitable codec, but we will not start the stream
			   just yet, wait for transport negotiation to complete... */
			purple_media_set_send_codec(
					jabber_jingle_session_get_media(session),
					xmlnode_get_attrib(content, "name"),
					codec_intersection->data);
		}
		/* if we also got transport candidates, add them to our streams
		   list of known remote candidates */
		if (g_list_length(remote_transports) > 0) {
			purple_media_add_remote_candidates(session->media,
							   xmlnode_get_attrib(content, "name"),
							   jabber_jingle_session_get_remote_jid(session),
							   remote_transports);
			fs_candidate_list_destroy(remote_transports);
		}
		if (g_list_length(codec_intersection) == 0 &&
				g_list_length(remote_transports)) {
			/* we didn't get any candidates and the codec intersection is empty,
			   this means this was not a content-accept message and we couldn't
			   find any suitable codecs, should return error and hang up */

		}

		fs_codec_list_destroy(codec_intersection);

	}

	if (!strcmp(action, "session-accept")) {
		purple_media_got_accept(jabber_jingle_session_get_media(session));
		purple_debug_info("jingle", "Got session-accept\n");
	}

	jabber_iq_send(jabber_jingle_session_create_ack(session, jingle));

	jabber_jingle_session_set_state(session, ACTIVE);
}

static void
jabber_jingle_session_handle_session_info(JingleSession *session, xmlnode *jingle)
{
	purple_debug_info("jingle", "got session-info\n");
	jabber_iq_send(jabber_jingle_session_create_ack(session, jingle));
}

static void 
jabber_jingle_session_handle_session_initiate(JingleSession *session, xmlnode *jingle)
{
	xmlnode *content = NULL;
	xmlnode *description = NULL;
	xmlnode *transport = NULL;
	const char *initiator = NULL;
	GList *codecs = NULL;

	if (!jingle) {
		purple_debug_error("jingle", "Malformed request\n");
		return;
	}

	initiator = xmlnode_get_attrib(jingle, "initiator");

	for (content = xmlnode_get_child(jingle, "content"); content;
			content = xmlnode_get_next_twin(content)) {
		/* init media */
		if (!content) {
			purple_debug_error("jingle", "jingle tag must contain content tag\n");
			/* should send error here */
			return;
		}

		description = xmlnode_get_child(content, "description");

		if (!description) {
			purple_debug_error("jingle", "content tag must contain description tag\n");
			/* we should create an error iq here */
			return;
		}

		transport = xmlnode_get_child(content, "transport");

		if (!transport) {
			purple_debug_error("jingle", "content tag must contain transport tag\n");
			/* we should create an error iq here */
			return;
		}

		jabber_jingle_session_content_create_parse(session, content);
	}

	if (!jabber_jingle_session_initiate_media_internal(session, initiator, initiator)) {
		purple_debug_error("jingle", "Couldn't start media session with %s\n", initiator);
		jabber_jingle_session_send_session_reject(session);
		return;
	}

	for (content = xmlnode_get_child(jingle, "content"); content;
			content = xmlnode_get_next_twin(content)) {
		GList *codec_intersection = NULL;

		/* init media */
		if (!content) {
			purple_debug_error("jingle", "jingle tag must contain content tag\n");
			/* should send error here */
			return;
		}

		description = xmlnode_get_child(content, "description");

		if (!description) {
			purple_debug_error("jingle", "content tag must contain description tag\n");
			/* we should create an error iq here */
			return;
		}
		codecs = jabber_jingle_get_codecs(description);

		purple_media_set_remote_codecs(session->media,
					       xmlnode_get_attrib(content, "name"),
					       initiator, codecs);

		codec_intersection = purple_media_get_negotiated_codecs(session->media,
				xmlnode_get_attrib(content, "name"));
		purple_debug_info("jingle", "codec intersection: %i\n",
				g_list_length(codec_intersection));

		if (g_list_length(codec_intersection) > 0) {
			purple_media_set_send_codec(
					jabber_jingle_session_get_media(session),
					xmlnode_get_attrib(content, "name"),
					codec_intersection->data);
		}
	}
	jabber_iq_send(jabber_jingle_session_create_ack(session, jingle));
	jabber_iq_send(jabber_jingle_session_create_session_info(session, "ringing"));

	purple_media_got_request(jabber_jingle_session_get_media(session));
}

static void
jabber_jingle_session_handle_session_terminate(JingleSession *session, xmlnode *jingle)
{
	if (!session) {
		purple_debug_error("jingle", "jabber_handle_session_terminate couldn't find session\n");
		return;
	}

	/* maybe we should look at the reasoncode to determine if it was
	   a hangup or a reject, and call different callbacks to purple_media */
	purple_media_got_hangup(jabber_jingle_session_get_media(session));
	jabber_iq_send(jabber_jingle_session_create_ack(session, jingle));
	jabber_jingle_session_destroy(session);
}

static void
jabber_jingle_session_handle_transport_info(JingleSession *session, xmlnode *jingle)
{
	xmlnode *content = xmlnode_get_child(jingle, "content");
	xmlnode *transport = xmlnode_get_child(content, "transport");
	GList *remote_candidates = jabber_jingle_get_candidates(transport);

	if (!session)
		purple_debug_error("jingle", "jabber_handle_session_candidates couldn't find session\n");

	/* send acknowledement */
	jabber_iq_send(jabber_jingle_session_create_ack(session, jingle));

	/* add candidates to our list of remote candidates */
	if (g_list_length(remote_candidates) > 0) {
		purple_media_add_remote_candidates(session->media,
						   xmlnode_get_attrib(content, "name"),
						   xmlnode_get_attrib(xmlnode_get_parent(jingle), "from"),
						   remote_candidates);
		fs_candidate_list_destroy(remote_candidates);
	}
}

void
jabber_jingle_session_parse(JabberStream *js, xmlnode *packet)
{
	const gchar *type = xmlnode_get_attrib(packet, "type");
	xmlnode *jingle;
	const gchar *action;
	const char *sid;
	JingleSession *session;

	if (!type || strcmp(type, "set")) {
		/* send iq error here */
		return;
	}

	/* is this a Jingle package? */
	if (!(jingle = xmlnode_get_child(packet, "jingle"))) {
		/* send iq error here */
		return;
	}

	if (!(action = xmlnode_get_attrib(jingle, "action"))) {
		/* send iq error here */
		return;
	}

	purple_debug_info("jabber", "got Jingle package action = %s\n",
			  action);

	if (!(sid = xmlnode_get_attrib(jingle, "sid"))) {
		/* send iq error here */
		return;
	}

	if (!(session = jabber_jingle_session_find_by_id(js, sid))
			&& strcmp(action, "session-initiate")) {
		purple_debug_error("jingle", "jabber_jingle_session_parse couldn't find session\n");
		/* send iq error here */
		return;
	}

	if (!strcmp(action, "session-initiate")) {
		if (session) {
			/* This should only happen if you start a session with yourself */
			purple_debug_error("jingle", "Jingle session with "
					"id={%s} already exists\n", sid);
			/* send iq error */
		} else if ((session = jabber_jingle_session_find_by_jid(js,
				xmlnode_get_attrib(packet, "from")))) {
			purple_debug_fatal("jingle", "Jingle session with "
					"jid={%s} already exists\n",
					xmlnode_get_attrib(packet, "from"));
			/* send jingle redirect packet */
			return;
		} else {
			session = jabber_jingle_session_create_by_id(js, sid);
			jabber_jingle_session_handle_session_initiate(session, jingle);
		}
	} else if (!strcmp(action, "session-accept")
			   || !strcmp(action, "content-accept")) {
		jabber_jingle_session_handle_session_accept(session, jingle);
	} else if (!strcmp(action, "session-info")) {
		jabber_jingle_session_handle_session_info(session, jingle);
	} else if (!strcmp(action, "session-terminate")) {
		jabber_jingle_session_handle_session_terminate(session, jingle);
	} else if (!strcmp(action, "transport-info")) {
		jabber_jingle_session_handle_transport_info(session, jingle);
	} else if (!strcmp(action, "content-replace")) {
		jabber_jingle_session_handle_content_replace(session, jingle);
	}
}

#endif /* USE_VV */