mirror of https://github.com/sipwise/sems.git
new application: signalling only b2bua with authenticated second leg, domain/user/pwd from second leg in P-App-Param headers
git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@833 8eb893ce-cfd4-0310-b710-fb5ebe64c474sayer/1.4-spce2.6
Stefan Sayer
19 years ago
parent
e33cc4c778
commit
92759417ba
@ -0,0 +1,329 @@
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/*
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* $Id: $
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*
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* Copyright (C) 2008 iptego GmbH
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* Based on the concept of mycc, Copyright (C) 2007 Sipwise GmbH
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* Based on the concept of sw_prepaid_sip, Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of sems, a free SIP media server.
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*
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* sems is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* For a license to use the sems software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* sems is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "AuthB2B.h"
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#include "log.h"
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#include "AmUtils.h"
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#include "AmAudio.h"
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#include "AmPlugIn.h"
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#include "AmMediaProcessor.h"
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//#include "AmConfigReader.h"
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#include "AmSessionContainer.h"
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EXPORT_SESSION_FACTORY(AuthB2BFactory,MOD_NAME);
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AuthB2BFactory::AuthB2BFactory(const string& _app_name)
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: AmSessionFactory(_app_name)
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// , user_timer_fact(NULL)
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{
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}
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int AuthB2BFactory::onLoad()
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{
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// AmConfigReader cfg;
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// if(cfg.loadFile(AmConfig::ModConfigPath + string(MOD_NAME ".conf")))
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// return -1;
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// user_timer_fact = AmPlugIn::instance()->getFactory4Di("user_timer");
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// if(!user_timer_fact) {
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// ERROR("could not load user_timer from session_timer plug-in\n");
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// return -1;
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// }
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return 0;
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}
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AmSession* AuthB2BFactory::onInvite(const AmSipRequest& req)
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{
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// AmDynInvoke* user_timer = user_timer_fact->getInstance();
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// if(!user_timer) {
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// ERROR("could not get a user timer reference\n");
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// throw AmSession::Exception(500,"could not get a user timer reference");
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// }
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return new AuthB2BDialog(); //user_timer);
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}
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AuthB2BDialog::AuthB2BDialog() // AmDynInvoke* user_timer)
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: m_state(BB_Init),
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//m_user_timer(user_timer),
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AmB2BCallerSession()
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{
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set_sip_relay_only(false);
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}
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AuthB2BDialog::~AuthB2BDialog()
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{
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}
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void AuthB2BDialog::onInvite(const AmSipRequest& req)
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{
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// TODO: do reinvites get here? if so, don't set a timer then
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// -> yes, they do.
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// TODO: errors thrown as exception don't seem to trigger a reply?
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// -> only in SessionFactory::onInvite they do. todo: move the logic to
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// session factory
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setReceiving(false);
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AmMediaProcessor::instance()->removeSession(this);
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string app_param = getHeader(req.hdrs, PARAM_HDR);
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if (!app_param.length()) {
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AmSession::Exception(500, "auth_b2b: parameters not found");
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}
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domain = get_header_keyvalue(app_param,"d");
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user = get_header_keyvalue(app_param,"u");
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password = get_header_keyvalue(app_param,"p");
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from = "sip:"+user+"@"+domain;
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to = "sip:"+req.user+"@"+domain;
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// DBG("-----------------------------------------------------------------\n");
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// DBG("domain = %s, user = %s, pwd = %s, from = %s, to = %s;",
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// domain.c_str(), user.c_str(), password.c_str(), from.c_str(), to.c_str());
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// DBG("-----------------------------------------------------------------\n");
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m_state = BB_Dialing;
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if(dlg.reply(req, 101, "Connecting") != 0) {
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throw AmSession::Exception(500,"Failed to reply 101");
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}
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invite_req = req;
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size_t pos1, pos2, hdr_start;
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if (findHeader(invite_req.hdrs,PARAM_HDR, pos1, pos2,
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hdr_start)) {
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while (invite_req.hdrs[pos2]=='\r' ||invite_req.hdrs[pos2]=='\n')
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pos2++;
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hdr_start -= 11; //"P-App-Param"
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invite_req.hdrs.erase(hdr_start, pos2-hdr_start);
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}
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if (findHeader(invite_req.hdrs,"P-App-Name", pos1, pos2,
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hdr_start)) {
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while (invite_req.hdrs[pos2]=='\r' ||invite_req.hdrs[pos2]=='\n')
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pos2++;
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hdr_start -= 10; //"P-App-Name"
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invite_req.hdrs.erase(hdr_start, pos2-hdr_start);
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}
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dlg.updateStatus(req);
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recvd_req.insert(std::make_pair(req.cseq,req));
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set_sip_relay_only(true);
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connectCallee("<" + to + ">", to, true);
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}
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void AuthB2BDialog::process(AmEvent* ev)
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{
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// AmPluginEvent* plugin_event = dynamic_cast<AmPluginEvent*>(ev);
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// if(plugin_event && plugin_event->name == "timer_timeout") {
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// int timer_id = plugin_event->data.get(0).asInt();
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// if (timer_id == TIMERID_CREDIT_TIMEOUT) {
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// DBG("timer timeout, no more credit\n");
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// stopAccounting();
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// terminateOtherLeg();
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// terminateLeg();
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// ev->processed = true;
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// return;
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// }
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// }
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AmB2BCallerSession::process(ev);
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}
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bool AuthB2BDialog::onOtherReply(const AmSipReply& reply)
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{
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bool ret = false;
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if (m_state == BB_Dialing) {
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if (reply.code < 200) {
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DBG("Callee is trying... code %d\n", reply.code);
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}
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else if(reply.code < 300) {
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if(getCalleeStatus() == Connected) {
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m_state = BB_Connected;
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setInOut(NULL, NULL);
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// // set the call timer
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// AmArg di_args,ret;
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// di_args.push(TIMERID_CREDIT_TIMEOUT);
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// di_args.push(m_credit); // in seconds
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// di_args.push(dlg.local_tag.c_str());
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// m_user_timer->invoke("setTimer", di_args, ret);
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}
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}
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else if(reply.code == 487 && dlg.getStatus() == AmSipDialog::Pending) {
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DBG("Canceling leg A on 487 from B");
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dlg.reply(m_localreq, 487, "Call terminated");
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setStopped();
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ret = true;
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}
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else if (reply.code >= 300 && dlg.getStatus() == AmSipDialog::Connected) {
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DBG("Callee final error in connected state with code %d\n",reply.code);
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terminateLeg();
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}
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else {
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DBG("Callee final error with code %d\n",reply.code);
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AmB2BCallerSession::onOtherReply(reply);
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}
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}
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return ret;
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}
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void AuthB2BDialog::onOtherBye(const AmSipRequest& req)
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{
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// stopAccounting();
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AmB2BCallerSession::onOtherBye(req);
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}
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void AuthB2BDialog::onBye(const AmSipRequest& req)
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{
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if (m_state == BB_Connected) {
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// stopAccounting();
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}
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terminateOtherLeg();
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setStopped();
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}
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void AuthB2BDialog::onCancel()
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{
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if(dlg.getStatus() == AmSipDialog::Pending) {
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DBG("Wait for leg B to terminate");
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}
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else {
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DBG("Canceling leg A on CANCEL since dialog is not pending");
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dlg.reply(m_localreq, 487, "Call terminated");
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setStopped();
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}
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}
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void AuthB2BDialog::createCalleeSession()
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{
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AuthB2BCalleeSession* callee_session = new AuthB2BCalleeSession(this, user, password);
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// adding auth handler
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AmSessionEventHandlerFactory* uac_auth_f =
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AmPlugIn::instance()->getFactory4Seh("uac_auth");
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if (NULL == uac_auth_f) {
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INFO("uac_auth module not loaded. uac auth NOT enabled for callee session.\n");
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} else {
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AmSessionEventHandler* h = uac_auth_f->getHandler(callee_session);
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// we cannot use the generic AmSessionEventHandler hooks,
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// because the hooks don't work in AmB2BSession
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callee_session->setAuthHandler(h);
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DBG("uac auth enabled for callee session.\n");
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}
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AmSipDialog& callee_dlg = callee_session->dlg;
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other_id = AmSession::getNewId();
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callee_dlg.local_tag = other_id;
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callee_dlg.callid = AmSession::getNewId() + "@" + AmConfig::LocalIP;
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// this will be overwritten by ConnectLeg event
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callee_dlg.remote_party = dlg.local_party;
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callee_dlg.remote_uri = dlg.local_uri;
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// if given as parameters, use these
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callee_dlg.local_party = from;
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callee_dlg.local_uri = from;
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DBG("Created B2BUA callee leg, From: %s\n",
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from.c_str());
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callee_session->start();
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AmSessionContainer* sess_cont = AmSessionContainer::instance();
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sess_cont->addSession(other_id,callee_session);
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}
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AuthB2BCalleeSession::AuthB2BCalleeSession(const AmB2BCallerSession* caller,
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const string& user, const string& pwd)
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: credentials("", user, pwd), // domain (realm) is unused in credentials
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AmB2BCalleeSession(caller) {
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}
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AuthB2BCalleeSession::~AuthB2BCalleeSession() {
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}
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inline UACAuthCred* AuthB2BCalleeSession::getCredentials() {
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return &credentials;
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}
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void AuthB2BCalleeSession::onSipReply(const AmSipReply& reply) {
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int cseq_before = dlg.cseq;
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if (!auth->onSipReply(reply)) {
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AmB2BCalleeSession::onSipReply(reply);
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} else {
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if (cseq_before != dlg.cseq) {
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DBG("uac_auth consumed reply with cseq %d and resent with cseq %d; "
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"updating relayed_req map\n",
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reply.cseq, cseq_before);
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TransMap::iterator it=relayed_req.find(reply.cseq);
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if (it != relayed_req.end()) {
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relayed_req[cseq_before] = it->second;
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relayed_req.erase(it);
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}
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}
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}
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}
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void AuthB2BCalleeSession::onSendRequest(const string& method, const string& content_type,
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const string& body, string& hdrs, int flags, unsigned int cseq)
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{
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DBG("auth->onSendRequest cseq = %d\n", cseq);
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auth->onSendRequest(method, content_type,
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body, hdrs, flags, cseq);
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AmB2BCalleeSession::onSendRequest(method, content_type,
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body, hdrs, flags, cseq);
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}
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@ -0,0 +1,106 @@
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/*
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* $Id: $
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*
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* Copyright (C) 2007 Sipwise GmbH
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* Based on the concept of mycc, Copyright (C) 2002-2003 Fhg Fokus
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*
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* This file is part of sems, a free SIP media server.
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*
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* sems is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* For a license to use the sems software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* sems is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _AUTH_B2B_H
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#define _AUTH_B2B_H
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#include "AmB2BSession.h"
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#include "ampi/UACAuthAPI.h"
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using std::string;
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class AuthB2BFactory: public AmSessionFactory
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{
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/* AmDynInvokeFactory* user_timer_fact; */
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public:
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AuthB2BFactory(const string& _app_name);
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int onLoad();
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AmSession* onInvite(const AmSipRequest& req);
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};
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class AuthB2BDialog : public AmB2BCallerSession
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{
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enum {
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BB_Init = 0,
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BB_Dialing,
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BB_Connected,
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BB_Teardown
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} CallerState;
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int m_state;
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AmSipRequest m_localreq;
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string domain;
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string user;
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string password;
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string from;
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string to;
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/* AmDynInvoke* m_user_timer; */
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public:
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AuthB2BDialog(); //AmDynInvoke* user_timer);
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~AuthB2BDialog();
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void process(AmEvent* ev);
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void onBye(const AmSipRequest& req);
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void onInvite(const AmSipRequest& req);
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void onCancel();
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protected:
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bool onOtherReply(const AmSipReply& reply);
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void onOtherBye(const AmSipRequest& req);
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void createCalleeSession();
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};
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class AuthB2BCalleeSession
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: public AmB2BCalleeSession, public CredentialHolder
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{
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UACAuthCred credentials;
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AmSessionEventHandler* auth;
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protected:
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void onSipReply(const AmSipReply& reply);
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void onSendRequest(const string& method, const string& content_type,
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const string& body, string& hdrs, int flags, unsigned int cseq);
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public:
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AuthB2BCalleeSession(const AmB2BCallerSession* caller, const string& user, const string& pwd);
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~AuthB2BCalleeSession();
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inline UACAuthCred* getCredentials();
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void setAuthHandler(AmSessionEventHandler* h) { auth = h; }
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};
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#endif
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@ -0,0 +1,7 @@
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plug_in_name = auth_b2b
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module_ldflags =
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module_cflags = -DMOD_NAME=\"$(plug_in_name)\"
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COREPATH ?= ../../core
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include $(COREPATH)/plug-in/Makefile.app_module
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