#include <Swiften/Base/IDGenerator.h>

#include <Swiften/Base/Log.h>

#include <Swiften/Base/foreach.h>

#include <Swiften/Base/Algorithm.h>

#include <Swiften/Client/ClientSession.h>

#include <Swiften/TLS/CertificateVerificationError.h>

#include <Swiften/Network/ChainedConnector.h>

#include <Swiften/Network/NetworkFactories.h>

#include <Swiften/Network/ProxyProvider.h>

#include <Swiften/TLS/PKCS12Certificate.h>

#include <Swiften/Session/BasicSessionStream.h>

#include <Swiften/Session/BOSHSessionStream.h>

#include <Swiften/Queries/IQRouter.h>

#include <Swiften/Client/ClientSessionStanzaChannel.h>

#include <Swiften/Network/SOCKS5ProxiedConnectionFactory.h>

#include <Swiften/Network/HTTPConnectProxiedConnectionFactory.h>

namespace Swift {

}

void CoreClient::connect(const std::string& host) {

forceReset();

SWIFT_LOG(debug) << "Connecting to host " << host << std::endl;

disconnectRequested_ = false;

assert(!connector_);

assert(proxyConnectionFactories.empty());

proxyConnectionFactories.push_back(new SOCKS5ProxiedConnectionFactory(networkFactories->getConnectionFactory(), networkFactories->getProxyProvider()->getSOCKS5Proxy()));

}

if(networkFactories->getProxyProvider()->getHTTPConnectProxy().isValid()) {

proxyConnectionFactories.push_back(new HTTPConnectProxiedConnectionFactory(networkFactories->getDomainNameResolver(), networkFactories->getConnectionFactory(), networkFactories->getTimerFactory(), networkFactories->getEventLoop(), networkFactories->getProxyProvider()->getHTTPConnectProxy().getAddress().toString(), networkFactories->getProxyProvider()->getHTTPConnectProxy().getPort()));

}

std::vector<ConnectionFactory*> connectionFactories(proxyConnectionFactories);

if (options.boshURL.empty()) {

connectionFactories.push_back(networkFactories->getConnectionFactory());

connector_ = boost::make_shared<ChainedConnector>(host, networkFactories->getDomainNameResolver(), connectionFactories, networkFactories->getTimerFactory());

connector_->setTimeoutMilliseconds(60*1000);

connector_->start();

}

else {

/* Autodiscovery of which proxy works is largely ok with a TCP session, because this is a one-off. With BOSH

* it would be quite painful given that potentially every stanza could be sent on a new connection.

*/

//sessionStream_ = boost::make_shared<BOSHSessionStream>(boost::make_shared<BOSHConnectionFactory>(options.boshURL, networkFactories->getConnectionFactory(), networkFactories->getXMLParserFactory(), networkFactories->getTLSContextFactory()), getPayloadParserFactories(), getPayloadSerializers(), networkFactories->getTLSContextFactory(), networkFactories->getTimerFactory(), networkFactories->getXMLParserFactory(), networkFactories->getEventLoop(), host, options.boshHTTPConnectProxyURL, options.boshHTTPConnectProxyAuthID, options.boshHTTPConnectProxyAuthPassword);

sessionStream_ = boost::shared_ptr<BOSHSessionStream>(new BOSHSessionStream(

stanzaChannel_->setSession(session_);

session_->onFinished.connect(boost::bind(&CoreClient::handleSessionFinished, this, _1));

session_->onNeedCredentials.connect(boost::bind(&CoreClient::handleNeedCredentials, this));

session_->start();

}

/**

* Only called for TCP sessions. BOSH is handled inside the BOSHSessionStream.

*/

resetConnector();

if (!connection) {

if (options.forgetPassword) {

purgePassword();

}

}

else {

assert(!connection_);

connection_ = connection;

assert(!sessionStream_);

sessionStream_ = boost::make_shared<BasicSessionStream>(ClientStreamType, connection_, getPayloadParserFactories(), getPayloadSerializers(), networkFactories->getTLSContextFactory(), networkFactories->getTimerFactory(), networkFactories->getXMLParserFactory());

if (certificate_ && !certificate_->isNull()) {

sessionStream_->setTLSCertificate(certificate_);

return jid_;

}

}

void CoreClient::purgePassword() {

safeClear(password_);

}

void CoreClient::resetConnector() {

connector_.reset();

foreach(ConnectionFactory* f, proxyConnectionFactories) {

delete f;

}

proxyConnectionFactories.clear();

}

void CoreClient::resetSession() {

session_->onFinished.disconnect(boost::bind(&CoreClient::handleSessionFinished, this, _1));

return networkFactories;

}

/**

* Called before onConnected signal is emmitted.

*/

virtual void handleConnected() {};

private:

void handleStanzaChannelAvailableChanged(bool available);

void handleSessionFinished(boost::shared_ptr<Error>);

void handleNeedCredentials();

void handleDataRead(const SafeByteArray&);

void handleDataWritten(const SafeByteArray&);

void handlePresenceReceived(boost::shared_ptr<Presence>);

void handleMessageReceived(boost::shared_ptr<Message>);

void handleStanzaAcked(boost::shared_ptr<Stanza>);

void purgePassword();

* Copyright (c) 2011 Tobias Markmann

* Licensed under the BSD license.

* See http://www.opensource.org/licenses/bsd-license.php for more information.

*/

#pragma once

#include <string>

#include <Swiften/Elements/Payload.h>

namespace Swift {

class DeliveryReceipt : public Payload {

public:

typedef boost::shared_ptr<DeliveryReceipt> ref;

public:

void ChainedConnector::start() {

SWIFT_LOG(debug) << "Starting queued connector for " << hostname << std::endl;

connectionFactoryQueue = std::deque<ConnectionFactory*>(connectionFactories.begin(), connectionFactories.end());

tryNextConnectionFactory();

}

void ChainedConnector::stop() {

if (currentConnector) {

currentConnector->stop();

currentConnector.reset();

}

}

void ChainedConnector::tryNextConnectionFactory() {

assert(!currentConnector);

if (connectionFactoryQueue.empty()) {

SWIFT_LOG(debug) << "No more connection factories" << std::endl;

}

else {

ConnectionFactory* connectionFactory = connectionFactoryQueue.front();

SWIFT_LOG(debug) << "Trying next connection factory: " << typeid(*connectionFactory).name() << std::endl;

connectionFactoryQueue.pop_front();

currentConnector = Connector::create(hostname, resolver, connectionFactory, timerFactory);

currentConnector->setTimeoutMilliseconds(timeoutMilliseconds);

currentConnector->start();

}

}

SWIFT_LOG(debug) << "Connector finished" << std::endl;

currentConnector.reset();

if (connection) {

}

else {

tryNextConnectionFactory();

}

}

}

#pragma once

#include <string>

#include <vector>

#include <deque>

#include <boost/shared_ptr.hpp>

#include <Swiften/Base/boost_bsignals.h>

namespace Swift {

class Connection;

class Connector;

class ConnectionFactory;

class TimerFactory;

class DomainNameResolver;

class ChainedConnector {

public:

ChainedConnector(const std::string& hostname, DomainNameResolver*, const std::vector<ConnectionFactory*>&, TimerFactory*);

void setTimeoutMilliseconds(int milliseconds);

void start();

void stop();

private:

void tryNextConnectionFactory();

private:

std::string hostname;

DomainNameResolver* resolver;

std::vector<ConnectionFactory*> connectionFactories;

TimerFactory* timerFactory;

int timeoutMilliseconds;

std::deque<ConnectionFactory*> connectionFactoryQueue;

boost::shared_ptr<Connector> currentConnector;

};

};

#include <Swiften/Network/ConnectionFactory.h>

#include <Swiften/Network/DomainNameResolver.h>

#include <Swiften/Network/DomainNameAddressQuery.h>

#include <Swiften/Network/TimerFactory.h>

#include <Swiften/Base/Log.h>

namespace Swift {

}

void Connector::setTimeoutMilliseconds(int milliseconds) {

timeoutMilliseconds = milliseconds;

}

void Connector::start() {

SWIFT_LOG(debug) << "Starting connector for " << hostname << std::endl;

//std::cout << "Connector::start()" << std::endl;

addressQuery = resolver->createAddressQuery(hostname);

addressQuery->onResult.connect(boost::bind(&Connector::handleAddressQueryResult, shared_from_this(), _1, _2));

addressQuery->run();

}

void Connector::handleServiceQueryResult(const std::vector<DomainNameServiceQuery::Result>& result) {

SWIFT_LOG(debug) << result.size() << " SRV result(s)" << std::endl;

serviceQueryResults = std::deque<DomainNameServiceQuery::Result>(result.begin(), result.end());

serviceQuery.reset();

tryNextServiceOrFallback();

}

void Connector::tryNextServiceOrFallback() {

if (queriedAllServices) {

SWIFT_LOG(debug) << "Queried all services" << std::endl;

finish(boost::shared_ptr<Connection>());

}

else if (serviceQueryResults.empty()) {

SWIFT_LOG(debug) << addresses.size() << " addresses" << std::endl;

addressQuery.reset();

if (error || addresses.empty()) {

if (!serviceQueryResults.empty()) {

serviceQueryResults.pop_front();

}

tryNextServiceOrFallback();

}

else {

addressQueryResults = std::deque<HostAddress>(addresses.begin(), addresses.end());

tryNextAddress();

}

}

void Connector::tryNextAddress() {

if (addressQueryResults.empty()) {

SWIFT_LOG(debug) << "Done trying addresses. Moving on." << std::endl;

// Done trying all addresses. Move on to the next host.

}

if (addressQuery) {

addressQuery->onResult.disconnect(boost::bind(&Connector::handleAddressQueryResult, shared_from_this(), _1, _2));

addressQuery.reset();

}

if (currentConnection) {

currentConnection->onConnectFinished.disconnect(boost::bind(&Connector::handleConnectionConnectFinished, shared_from_this(), _1));

currentConnection.reset();

}

}

void Connector::handleTimeout() {

SWIFT_LOG(debug) << "Timeout" << std::endl;

finish(boost::shared_ptr<Connection>());

}

};

static Connector::ref create(const std::string& hostname, DomainNameResolver* resolver, ConnectionFactory* connectionFactory, TimerFactory* timerFactory, int defaultPort = 5222) {

return ref(new Connector(hostname, resolver, connectionFactory, timerFactory, defaultPort));

}

void setTimeoutMilliseconds(int milliseconds);

void start();

void stop();

private:

Connector(const std::string& hostname, DomainNameResolver*, ConnectionFactory*, TimerFactory*, int defaultPort);

void handleServiceQueryResult(const std::vector<DomainNameServiceQuery::Result>& result);

void handleAddressQueryResult(const std::vector<HostAddress>& address, boost::optional<DomainNameResolveError> error);

void queryAddress(const std::string& hostname);

void tryNextServiceOrFallback();

int defaultPort;

int timeoutMilliseconds;

boost::shared_ptr<Timer> timer;

boost::shared_ptr<DomainNameServiceQuery> serviceQuery;

std::deque<DomainNameServiceQuery::Result> serviceQueryResults;

boost::shared_ptr<DomainNameAddressQuery> addressQuery;

std::deque<HostAddress> addressQueryResults;

bool queriedAllServices;

boost::shared_ptr<Connection> currentConnection;

};

};

#include <boost/smart_ptr/make_shared.hpp>

#include <Swiften/Network/ChainedConnector.h>

#include <Swiften/Network/Connection.h>

#include <Swiften/Network/ConnectionFactory.h>

#include <Swiften/Network/HostAddressPort.h>

#include <Swiften/Network/StaticDomainNameResolver.h>

#include <Swiften/Network/DummyTimerFactory.h>

#include <Swiften/EventLoop/DummyEventLoop.h>

using namespace Swift;

class ChainedConnectorTest : public CppUnit::TestFixture {

CPPUNIT_TEST_SUITE(ChainedConnectorTest);

CPPUNIT_TEST(testConnect_FirstConnectorSucceeds);

CPPUNIT_TEST(testConnect_SecondConnectorSucceeds);

CPPUNIT_TEST(testConnect_NoConnectorSucceeds);

CPPUNIT_TEST(testStop);

CPPUNIT_TEST_SUITE_END();

public:

void setUp() {

host = HostAddressPort(HostAddress("1.1.1.1"), 1234);

eventLoop = new DummyEventLoop();

resolver = new StaticDomainNameResolver(eventLoop);

resolver->addXMPPClientService("foo.com", host);

connectionFactory1 = new MockConnectionFactory(eventLoop, 1);

connectionFactory2 = new MockConnectionFactory(eventLoop, 2);

timerFactory = new DummyTimerFactory();

}

connectionFactory1->connects = true;

connectionFactory2->connects = false;

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT_EQUAL(1, boost::dynamic_pointer_cast<MockConnection>(connections[0])->id);

}

void testConnect_SecondConnectorSucceeds() {

boost::shared_ptr<ChainedConnector> testling(createConnector());

connectionFactory1->connects = false;

connectionFactory2->connects = true;

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT_EQUAL(2, boost::dynamic_pointer_cast<MockConnection>(connections[0])->id);

}

void testConnect_NoConnectorSucceeds() {

boost::shared_ptr<ChainedConnector> testling(createConnector());

connectionFactory1->connects = false;

connectionFactory2->connects = false;

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testStop() {

boost::shared_ptr<ChainedConnector> testling(createConnector());

connectionFactory1->connects = true;

connectionFactory2->connects = false;

testling->start();

testling->stop();

CPPUNIT_ASSERT(!connections[0]);

}

private:

boost::shared_ptr<ChainedConnector> createConnector() {

std::vector<ConnectionFactory*> factories;

factories.push_back(connectionFactory1);

factories.push_back(connectionFactory2);

boost::shared_ptr<ChainedConnector> connector = boost::make_shared<ChainedConnector>("foo.com", resolver, factories, timerFactory);

return connector;

}

boost::shared_ptr<MockConnection> c(boost::dynamic_pointer_cast<MockConnection>(connection));

if (connection) {

assert(c);

}

connections.push_back(c);

}

struct MockConnection : public Connection {

public:

private:

HostAddressPort host;

DummyEventLoop* eventLoop;

StaticDomainNameResolver* resolver;

MockConnectionFactory* connectionFactory1;

MockConnectionFactory* connectionFactory2;

DummyTimerFactory* timerFactory;

std::vector< boost::shared_ptr<MockConnection> > connections;

};

CPPUNIT_TEST_SUITE_REGISTRATION(ChainedConnectorTest);

#include <boost/bind.hpp>

#include <Swiften/Network/Connector.h>

#include <Swiften/Network/Connection.h>

#include <Swiften/Network/ConnectionFactory.h>

#include <Swiften/Network/HostAddressPort.h>

#include <Swiften/Network/StaticDomainNameResolver.h>

#include <Swiften/Network/DummyTimerFactory.h>

#include <Swiften/EventLoop/DummyEventLoop.h>

using namespace Swift;

class ConnectorTest : public CppUnit::TestFixture {

CPPUNIT_TEST_SUITE(ConnectorTest);

CPPUNIT_TEST(testConnect);

CPPUNIT_TEST(testConnect_FirstAddressHostFails);

CPPUNIT_TEST(testConnect_NoSRVHost);

CPPUNIT_TEST(testConnect_NoHosts);

resolver->addXMPPClientService("foo.com", host2);

resolver->addAddress("foo.com", host3.getAddress());

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT(host1 == *(connections[0]->hostAddressPort));

}

void testConnect_NoSRVHost() {

Connector::ref testling(createConnector());

resolver->addAddress("foo.com", host3.getAddress());

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT(host3 == *(connections[0]->hostAddressPort));

}

void testConnect_FirstAddressHostFails() {

Connector::ref testling(createConnector());

HostAddress address1("1.1.1.1");

HostAddress address2("2.2.2.2");

resolver->addXMPPClientService("foo.com", "host-foo.com", 1234);

resolver->addAddress("host-foo.com", address1);

resolver->addAddress("host-foo.com", address2);

connectionFactory->failingPorts.push_back(HostAddressPort(address1, 1234));

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT(HostAddressPort(address2, 1234) == *(connections[0]->hostAddressPort));

}

void testConnect_NoHosts() {

Connector::ref testling(createConnector());

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testConnect_FirstSRVHostFails() {

Connector::ref testling(createConnector());

resolver->addXMPPClientService("foo.com", host1);

resolver->addXMPPClientService("foo.com", host2);

connectionFactory->failingPorts.push_back(host1);

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(host2 == *(connections[0]->hostAddressPort));

}

void testConnect_AllSRVHostsFailWithoutFallbackHost() {

Connector::ref testling(createConnector());

resolver->addXMPPClientService("foo.com", host1);

resolver->addXMPPClientService("foo.com", host2);

connectionFactory->failingPorts.push_back(host1);

connectionFactory->failingPorts.push_back(host2);

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testConnect_AllSRVHostsFailWithFallbackHost() {

Connector::ref testling(createConnector());

resolver->addXMPPClientService("foo.com", host1);

resolver->addXMPPClientService("foo.com", host2);

resolver->addAddress("foo.com", host3.getAddress());

connectionFactory->failingPorts.push_back(host1);

connectionFactory->failingPorts.push_back(host2);

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

CPPUNIT_ASSERT(host3 == *(connections[0]->hostAddressPort));

}

void testConnect_SRVAndFallbackHostsFail() {

Connector::ref testling(createConnector());

resolver->addXMPPClientService("foo.com", host1);

resolver->addAddress("foo.com", host3.getAddress());

connectionFactory->failingPorts.push_back(host1);

connectionFactory->failingPorts.push_back(host3);

testling->start();

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testConnect_TimeoutDuringResolve() {

Connector::ref testling(createConnector());

testling->setTimeoutMilliseconds(10);

resolver->setIsResponsive(false);

testling->start();

eventLoop->processEvents();

timerFactory->setTime(10);

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testConnect_TimeoutDuringConnect() {

Connector::ref testling(createConnector());

testling->setTimeoutMilliseconds(10);

resolver->addXMPPClientService("foo.com", host1);

connectionFactory->isResponsive = false;

testling->start();

eventLoop->processEvents();

timerFactory->setTime(10);

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

void testConnect_NoTimeout() {

Connector::ref testling(createConnector());

testling->setTimeoutMilliseconds(10);

resolver->addXMPPClientService("foo.com", host1);

testling->start();

eventLoop->processEvents();

timerFactory->setTime(10);

eventLoop->processEvents();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(connections[0]);

}

void testStop_DuringSRVQuery() {

}

void testStop_Timeout() {

Connector::ref testling(createConnector());

testling->setTimeoutMilliseconds(10);

resolver->addXMPPClientService("foo.com", host1);

testling->start();

testling->stop();

CPPUNIT_ASSERT_EQUAL(1, static_cast<int>(connections.size()));

CPPUNIT_ASSERT(!connections[0]);

}

private:

Connector::ref createConnector() {

Connector::ref connector = Connector::create("foo.com", resolver, connectionFactory, timerFactory);

return connector;

}

boost::shared_ptr<MockConnection> c(boost::dynamic_pointer_cast<MockConnection>(connection));

if (connection) {

assert(c);

}

connections.push_back(c);

}

struct MockConnection : public Connection {

public:

MockConnection(const std::vector<HostAddressPort>& failingPorts, bool isResponsive, EventLoop* eventLoop) : eventLoop(eventLoop), failingPorts(failingPorts), isResponsive(isResponsive) {}

void listen() { assert(false); }

void connect(const HostAddressPort& address) {

hostAddressPort = address;

private:

HostAddressPort host1;

HostAddressPort host2;

HostAddressPort host3;

DummyEventLoop* eventLoop;

StaticDomainNameResolver* resolver;

MockConnectionFactory* connectionFactory;

DummyTimerFactory* timerFactory;

std::vector< boost::shared_ptr<MockConnection> > connections;

};

CPPUNIT_TEST_SUITE_REGISTRATION(ConnectorTest);