Project 'savoirfairelinux/ring-client-gnome' was moved to 'savoirfairelinux/jami-client-gnome'. Please update any links and bookmarks that may still have the old path.
Select Git revision
ring_client.cpp
Code owners
Assign users and groups as approvers for specific file changes. Learn more.
pres_sub_server.cpp 10.02 KiB
/*
* Copyright (C) 2004-2013 Savoir-Faire Linux Inc.
*
* Author: Patrick Keroulas <patrick.keroulas@savoirfairelinux.com>
*
* 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 3 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 02110-1301 USA.
*
* Additional permission under GNU GPL version 3 section 7:
*
* If you modify this program, or any covered work, by linking or
* combining it with the OpenSSL project's OpenSSL library (or a
* modified version of that library), containing parts covered by the
* terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
* grants you additional permission to convey the resulting work.
* Corresponding Source for a non-source form of such a combination
* shall include the source code for the parts of OpenSSL used as well
* as that of the covered work.
*/
#include "pjsip/sip_multipart.h"
#include "sipvoiplink.h"
#include "manager.h"
#include "sippresence.h"
#include "logger.h"
#include "pres_sub_server.h"
/* Callback called when *server* subscription state has changed. */
void pres_evsub_on_srv_state(pjsip_evsub *sub, pjsip_event *event)
{
pjsip_rx_data *rdata = event->body.rx_msg.rdata;
if (!rdata) {
DEBUG("Presence_subscription_server estate has changed but no rdata.");
return;
}
PJ_UNUSED_ARG(event);
SIPPresence * pres = Manager::instance().getSipAccount("IP2IP")->getPresence();
pres->lock();
PresSubServer *presSubServer = (PresSubServer *) pjsip_evsub_get_mod_data(sub, pres->getModId());
DEBUG("Presence_subscription_server to %s is %s", presSubServer->remote, pjsip_evsub_get_state_name(sub));
if (presSubServer) {
pjsip_evsub_state state;
state = pjsip_evsub_get_state(sub);
if (state == PJSIP_EVSUB_STATE_TERMINATED) {
pjsip_evsub_set_mod_data(sub, pres->getModId(), NULL);
pres->removePresSubServer(presSubServer);
}
/* TODO check if other cases should be handled*/
}
pres->unlock();
}
pj_bool_t pres_on_rx_subscribe_request(pjsip_rx_data *rdata)
{
pjsip_method *method = &rdata->msg_info.msg->line.req.method;
pj_str_t *str = &method->name;
std::string request(str->ptr, str->slen);
// pj_str_t contact;
pj_status_t status;
pjsip_dialog *dlg;
pjsip_evsub *sub;
pjsip_evsub_user pres_cb;
pjsip_tx_data *tdata;
pjsip_expires_hdr *expires_hdr;
pjsip_status_code st_code;
pj_str_t reason;
pres_msg_data msg_data;
pjsip_evsub_state ev_state;
/* Only hande incoming subscribe messages should be processed here.
* Otherwise we return FALSE to let other modules handle it */
if (pjsip_method_cmp(&rdata->msg_info.msg->line.req.method, pjsip_get_subscribe_method()) != 0)
return PJ_FALSE;
/* debug msg */
std::string name(rdata->msg_info.to->name.ptr, rdata->msg_info.to->name.slen);
std::string server(rdata->msg_info.from->name.ptr, rdata->msg_info.from->name.slen);
DEBUG("Incomming pres_on_rx_subscribe_request for %s, name:%s, server:%s."
, request.c_str()
, name.c_str()
, server.c_str());
/* get parents*/
std::string accountId = "IP2IP"; /* this code is only used for IP2IP accounts */
SIPAccount *acc = (SIPAccount *) Manager::instance().getSipAccount(accountId);
pjsip_endpoint *endpt = ((SIPVoIPLink*) acc->getVoIPLink())->getEndpoint();
SIPPresence * pres = acc->getPresence();
pres->lock();
/* Create UAS dialog: */
std::string c(acc->getContactHeader());
const pj_str_t contact = pj_str((char*) c.c_str());
status = pjsip_dlg_create_uas(pjsip_ua_instance(), rdata, &contact, &dlg);
if (status != PJ_SUCCESS) {
char errmsg[PJ_ERR_MSG_SIZE];
pj_strerror(status, errmsg, sizeof(errmsg));
WARN("Unable to create UAS dialog for subscription: %s [status=%d]", errmsg, status);
pres->unlock();
pjsip_endpt_respond_stateless(endpt, rdata, 400, NULL, NULL, NULL);
return PJ_TRUE;
}
/* Init callback: */
pj_bzero(&pres_cb, sizeof(pres_cb));
pres_cb.on_evsub_state = &pres_evsub_on_srv_state;
/* Create server presence subscription: */
status = pjsip_pres_create_uas(dlg, &pres_cb, rdata, &sub);
if (status != PJ_SUCCESS) {
int code = PJSIP_ERRNO_TO_SIP_STATUS(status);
pjsip_tx_data *tdata;
WARN("Unable to create server subscription %d", status);
if (code == 599 || code > 699 || code < 300) {
code = 400;
}
status = pjsip_dlg_create_response(dlg, rdata, code, NULL, &tdata);
if (status == PJ_SUCCESS) {
status = pjsip_dlg_send_response(dlg, pjsip_rdata_get_tsx(rdata), tdata);
}
pres->unlock();
return PJ_FALSE;
}
/* Attach our data to the subscription: */
char* remote = (char*) pj_pool_alloc(dlg->pool, PJSIP_MAX_URL_SIZE);
status = pjsip_uri_print(PJSIP_URI_IN_REQ_URI, dlg->remote.info->uri, remote, PJSIP_MAX_URL_SIZE);
if (status < 1)
pj_ansi_strcpy(remote, "<-- url is too long-->");
else
remote[status] = '\0';
//pjsip_uri_print(PJSIP_URI_IN_CONTACT_HDR, dlg->local.info->uri, contact.ptr, PJSIP_MAX_URL_SIZE);
/* Create a new PresSubServer server and wait for client approve */
PresSubServer *presSubServer = new PresSubServer(pres, sub, remote, dlg);
pjsip_evsub_set_mod_data(sub, pres->getModId(), presSubServer);
pres->reportnewServerSubscriptionRequest(presSubServer); // Notify the client.
pres->addPresSubServer(presSubServer);
/* Capture the value of Expires header. */
expires_hdr = (pjsip_expires_hdr*) pjsip_msg_find_hdr(rdata->msg_info.msg, PJSIP_H_EXPIRES, NULL);
if (expires_hdr)
presSubServer->setExpires(expires_hdr->ivalue);
else
presSubServer->setExpires(-1);
st_code = (pjsip_status_code) 200;
reason = pj_str("OK");
pj_bzero(&msg_data, sizeof(msg_data));
pj_list_init(&msg_data.hdr_list);
pjsip_media_type_init(&msg_data.multipart_ctype, NULL, NULL);
pj_list_init(&msg_data.multipart_parts);
/* Create and send 2xx response to the SUBSCRIBE request: */
status = pjsip_pres_accept(sub, rdata, st_code, &msg_data.hdr_list);
if (status != PJ_SUCCESS) {
WARN("Unable to accept presence subscription %d", status);
pjsip_pres_terminate(sub, PJ_FALSE);
pres->unlock();
return PJ_FALSE;
}
// Unsubscribe case
ev_state = PJSIP_EVSUB_STATE_ACTIVE;
if (presSubServer->getExpires() == 0) {
ev_state = PJSIP_EVSUB_STATE_TERMINATED;
pres->unlock();
return PJ_TRUE;
}
/*Send notify immediatly. Replace real status with fake.*/
// pjsip_pres_set_status(sub, pres->getStatus()); // real status
// fake temporary status
pjrpid_element rpid = {
PJRPID_ELEMENT_TYPE_PERSON,
pj_str("20"),
PJRPID_ACTIVITY_UNKNOWN,
pj_str("Your subscription was received and waits for approval.")
};
pjsip_pres_status fake_status_data;
pj_bzero(&fake_status_data, sizeof(pjsip_pres_status));
fake_status_data.info_cnt = 1;
fake_status_data.info[0].basic_open = false;
fake_status_data.info[0].id = pj_str("0"); /* todo: tuplie_id*/
pj_memcpy(&fake_status_data.info[0].rpid, &rpid, sizeof(pjrpid_element));
pjsip_pres_set_status(sub, &fake_status_data);
/* Create and send the the first NOTIFY to active subscription: */
pj_str_t stateStr = pj_str("");
tdata = NULL;
status = pjsip_pres_notify(sub, ev_state, &stateStr, &reason, &tdata);
if (status == PJ_SUCCESS) {
pres->fillDoc(tdata, &msg_data);
status = pjsip_pres_send_request(sub, tdata);
}
if (status != PJ_SUCCESS) {
WARN("Unable to create/send NOTIFY %d", status);
pjsip_pres_terminate(sub, PJ_FALSE);
pres->unlock();
return status;
}
pres->unlock();
return PJ_TRUE;
}
PresSubServer::PresSubServer(SIPPresence * pres, pjsip_evsub *evsub, char *r, pjsip_dialog *d)
: remote(r)
, pres_(pres)
, sub_(evsub)
, dlg_(d)
, expires_(-1)
, approved_(false)
{}
PresSubServer::~PresSubServer()
{
//TODO: check if evsub needs to be forced TERMINATED.
}
void PresSubServer::setExpires(int ms)
{
expires_ = ms;
}
int PresSubServer::getExpires()
{
return expires_;
}
bool PresSubServer::matches(char *s)
{
// servers match if they have the same remote uri and the account ID.
return (!(strcmp(remote, s))) ;
}
void PresSubServer::approve(bool flag)
{
approved_ = flag;
// attach the real status data
pjsip_pres_set_status(sub_, pres_->getStatus());
}
void PresSubServer::notify()
{
/* Only send NOTIFY once subscription is active. Some subscriptions
* may still be in NULL (when app is adding a new buddy while in the
* on_incoming_subscribe() callback) or PENDING (when user approval is
* being requested) state and we don't send NOTIFY to these subs until
* the user accepted the request.
*/
if ((pjsip_evsub_get_state(sub_) == PJSIP_EVSUB_STATE_ACTIVE) && (approved_)) {
DEBUG("Notifying %s.", remote);
pjsip_tx_data *tdata;
pjsip_pres_set_status(sub_, pres_->getStatus());
if (pjsip_pres_current_notify(sub_, &tdata) == PJ_SUCCESS) {
// add msg header and send
pres_->fillDoc(tdata, NULL);
pjsip_pres_send_request(sub_, tdata);
} else {
WARN("Unable to create/send NOTIFY");
pjsip_pres_terminate(sub_, PJ_FALSE);
}
}
}