pidgin/pidgin

Added tag v2.14.3 for changeset 723c284ecfa1
release-2.x.y
2021-04-08, Gary Kramlich
039b66444534
Added tag v2.14.3 for changeset 723c284ecfa1
/**
* @file rawudp.c
*
* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* 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 "internal.h"
#include "rawudp.h"
#include "jingle.h"
#include "debug.h"
#include <string.h>
struct _JingleRawUdpPrivate
{
GList *local_candidates;
GList *remote_candidates;
};
#define JINGLE_RAWUDP_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), JINGLE_TYPE_RAWUDP, JingleRawUdpPrivate))
static void jingle_rawudp_class_init (JingleRawUdpClass *klass);
static void jingle_rawudp_init (JingleRawUdp *rawudp);
static void jingle_rawudp_finalize (GObject *object);
static void jingle_rawudp_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void jingle_rawudp_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static JingleTransport *jingle_rawudp_parse_internal(xmlnode *rawudp);
static xmlnode *jingle_rawudp_to_xml_internal(JingleTransport *transport, xmlnode *content, JingleActionType action);
static JingleTransportClass *parent_class = NULL;
enum {
PROP_0,
PROP_LOCAL_CANDIDATES,
PROP_REMOTE_CANDIDATES,
};
static JingleRawUdpCandidate *
jingle_rawudp_candidate_copy(JingleRawUdpCandidate *candidate)
{
JingleRawUdpCandidate *new_candidate = g_new0(JingleRawUdpCandidate, 1);
new_candidate->generation = candidate->generation;
new_candidate->component = candidate->component;
new_candidate->id = g_strdup(candidate->id);
new_candidate->ip = g_strdup(candidate->ip);
new_candidate->port = candidate->port;
new_candidate->rem_known = candidate->rem_known;
return new_candidate;
}
static void
jingle_rawudp_candidate_free(JingleRawUdpCandidate *candidate)
{
g_free(candidate->id);
g_free(candidate->ip);
}
GType
jingle_rawudp_candidate_get_type()
{
static GType type = 0;
if (type == 0) {
type = g_boxed_type_register_static("JingleRawUdpCandidate",
(GBoxedCopyFunc)jingle_rawudp_candidate_copy,
(GBoxedFreeFunc)jingle_rawudp_candidate_free);
}
return type;
}
JingleRawUdpCandidate *
jingle_rawudp_candidate_new(const gchar *id, guint generation, guint component, const gchar *ip, guint port)
{
JingleRawUdpCandidate *candidate = g_new0(JingleRawUdpCandidate, 1);
candidate->generation = generation;
candidate->component = component;
candidate->id = g_strdup(id);
candidate->ip = g_strdup(ip);
candidate->port = port;
candidate->rem_known = FALSE;
return candidate;
}
GType
jingle_rawudp_get_type()
{
static GType type = 0;
if (type == 0) {
static const GTypeInfo info = {
sizeof(JingleRawUdpClass),
NULL,
NULL,
(GClassInitFunc) jingle_rawudp_class_init,
NULL,
NULL,
sizeof(JingleRawUdp),
0,
(GInstanceInitFunc) jingle_rawudp_init,
NULL
};
type = g_type_register_static(JINGLE_TYPE_TRANSPORT, "JingleRawUdp", &info, 0);
}
return type;
}
static void
jingle_rawudp_class_init (JingleRawUdpClass *klass)
{
GObjectClass *gobject_class = (GObjectClass*)klass;
parent_class = g_type_class_peek_parent(klass);
gobject_class->finalize = jingle_rawudp_finalize;
gobject_class->set_property = jingle_rawudp_set_property;
gobject_class->get_property = jingle_rawudp_get_property;
klass->parent_class.to_xml = jingle_rawudp_to_xml_internal;
klass->parent_class.parse = jingle_rawudp_parse_internal;
klass->parent_class.transport_type = JINGLE_TRANSPORT_RAWUDP;
g_object_class_install_property(gobject_class, PROP_LOCAL_CANDIDATES,
g_param_spec_pointer("local-candidates",
"Local candidates",
"The local candidates for this transport.",
G_PARAM_READABLE));
g_object_class_install_property(gobject_class, PROP_REMOTE_CANDIDATES,
g_param_spec_pointer("remote-candidates",
"Remote candidates",
"The remote candidates for this transport.",
G_PARAM_READABLE));
g_type_class_add_private(klass, sizeof(JingleRawUdpPrivate));
}
static void
jingle_rawudp_init (JingleRawUdp *rawudp)
{
rawudp->priv = JINGLE_RAWUDP_GET_PRIVATE(rawudp);
rawudp->priv->local_candidates = NULL;
rawudp->priv->remote_candidates = NULL;
}
static void
jingle_rawudp_finalize (GObject *rawudp)
{
/* JingleRawUdpPrivate *priv = JINGLE_RAWUDP_GET_PRIVATE(rawudp); */
purple_debug_info("jingle","jingle_rawudp_finalize\n");
G_OBJECT_CLASS(parent_class)->finalize(rawudp);
}
static void
jingle_rawudp_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
JingleRawUdp *rawudp;
g_return_if_fail(object != NULL);
g_return_if_fail(JINGLE_IS_RAWUDP(object));
rawudp = JINGLE_RAWUDP(object);
switch (prop_id) {
case PROP_LOCAL_CANDIDATES:
rawudp->priv->local_candidates =
g_value_get_pointer(value);
break;
case PROP_REMOTE_CANDIDATES:
rawudp->priv->remote_candidates =
g_value_get_pointer(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
jingle_rawudp_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
JingleRawUdp *rawudp;
g_return_if_fail(object != NULL);
g_return_if_fail(JINGLE_IS_RAWUDP(object));
rawudp = JINGLE_RAWUDP(object);
switch (prop_id) {
case PROP_LOCAL_CANDIDATES:
g_value_set_pointer(value, rawudp->priv->local_candidates);
break;
case PROP_REMOTE_CANDIDATES:
g_value_set_pointer(value, rawudp->priv->remote_candidates);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
void
jingle_rawudp_add_local_candidate(JingleRawUdp *rawudp, JingleRawUdpCandidate *candidate)
{
GList *iter = rawudp->priv->local_candidates;
for (; iter; iter = g_list_next(iter)) {
JingleRawUdpCandidate *c = iter->data;
if (purple_strequal(c->id, candidate->id)) {
guint generation = c->generation + 1;
g_boxed_free(JINGLE_TYPE_RAWUDP_CANDIDATE, c);
rawudp->priv->local_candidates = g_list_delete_link(
rawudp->priv->local_candidates, iter);
candidate->generation = generation;
rawudp->priv->local_candidates = g_list_append(
rawudp->priv->local_candidates, candidate);
return;
}
}
rawudp->priv->local_candidates = g_list_append(
rawudp->priv->local_candidates, candidate);
}
GList *
jingle_rawudp_get_remote_candidates(JingleRawUdp *rawudp)
{
return g_list_copy(rawudp->priv->remote_candidates);
}
static JingleRawUdpCandidate *
jingle_rawudp_get_remote_candidate_by_id(JingleRawUdp *rawudp, gchar *id)
{
GList *iter = rawudp->priv->remote_candidates;
for (; iter; iter = g_list_next(iter)) {
JingleRawUdpCandidate *candidate = iter->data;
if (purple_strequal(candidate->id, id)) {
return candidate;
}
}
return NULL;
}
static void
jingle_rawudp_add_remote_candidate(JingleRawUdp *rawudp, JingleRawUdpCandidate *candidate)
{
JingleRawUdpPrivate *priv = JINGLE_RAWUDP_GET_PRIVATE(rawudp);
JingleRawUdpCandidate *rawudp_candidate =
jingle_rawudp_get_remote_candidate_by_id(rawudp, candidate->id);
if (rawudp_candidate != NULL) {
priv->remote_candidates = g_list_remove(
priv->remote_candidates, rawudp_candidate);
g_boxed_free(JINGLE_TYPE_RAWUDP_CANDIDATE, rawudp_candidate);
}
priv->remote_candidates = g_list_append(priv->remote_candidates, candidate);
}
static JingleTransport *
jingle_rawudp_parse_internal(xmlnode *rawudp)
{
JingleTransport *transport = parent_class->parse(rawudp);
JingleRawUdpPrivate *priv = JINGLE_RAWUDP_GET_PRIVATE(transport);
xmlnode *candidate = xmlnode_get_child(rawudp, "candidate");
JingleRawUdpCandidate *rawudp_candidate = NULL;
for (; candidate; candidate = xmlnode_get_next_twin(candidate)) {
const gchar *id = xmlnode_get_attrib(candidate, "id");
const gchar *generation = xmlnode_get_attrib(candidate, "generation");
const gchar *component = xmlnode_get_attrib(candidate, "component");
const gchar *ip = xmlnode_get_attrib(candidate, "ip");
const gchar *port = xmlnode_get_attrib(candidate, "port");
if (!id || !generation || !component || !ip || !port)
continue;
rawudp_candidate = jingle_rawudp_candidate_new(
id,
atoi(generation),
atoi(component),
ip,
atoi(port));
rawudp_candidate->rem_known = TRUE;
jingle_rawudp_add_remote_candidate(JINGLE_RAWUDP(transport), rawudp_candidate);
}
if (rawudp_candidate != NULL &&
g_list_length(priv->remote_candidates) == 1) {
/* manufacture rtcp candidate */
rawudp_candidate = g_boxed_copy(JINGLE_TYPE_RAWUDP_CANDIDATE, rawudp_candidate);
rawudp_candidate->component = 2;
rawudp_candidate->port = rawudp_candidate->port + 1;
rawudp_candidate->rem_known = TRUE;
jingle_rawudp_add_remote_candidate(JINGLE_RAWUDP(transport), rawudp_candidate);
}
return transport;
}
static xmlnode *
jingle_rawudp_to_xml_internal(JingleTransport *transport, xmlnode *content, JingleActionType action)
{
xmlnode *node = parent_class->to_xml(transport, content, action);
if (action == JINGLE_SESSION_INITIATE ||
action == JINGLE_TRANSPORT_INFO ||
action == JINGLE_SESSION_ACCEPT) {
JingleRawUdpPrivate *priv = JINGLE_RAWUDP_GET_PRIVATE(transport);
GList *iter = priv->local_candidates;
for (; iter; iter = g_list_next(iter)) {
JingleRawUdpCandidate *candidate = iter->data;
xmlnode *xmltransport;
gchar *generation, *component, *port;
if (candidate->rem_known == TRUE)
continue;
candidate->rem_known = TRUE;
xmltransport = xmlnode_new_child(node, "candidate");
generation = g_strdup_printf("%d", candidate->generation);
component = g_strdup_printf("%d", candidate->component);
port = g_strdup_printf("%d", candidate->port);
xmlnode_set_attrib(xmltransport, "generation", generation);
xmlnode_set_attrib(xmltransport, "component", component);
xmlnode_set_attrib(xmltransport, "id", candidate->id);
xmlnode_set_attrib(xmltransport, "ip", candidate->ip);
xmlnode_set_attrib(xmltransport, "port", port);
g_free(port);
g_free(generation);
}
}
return node;
}