mirror of https://github.com/axmolengine/axmol.git
703 lines
14 KiB
C++
703 lines
14 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2013 cocos2d-x.org
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Copyright (c) 2013 Chris Hannon
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*based on the SocketIO library created by LearnBoost at http://socket.io
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*using spec version 1 found at https://github.com/LearnBoost/socket.io-spec
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****************************************************************************/
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#include "SocketIO.h"
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#include "WebSocket.h"
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#include "HttpClient.h"
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#include <algorithm>
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using namespace cocos2d;
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namespace network {
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//class declarations
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/**
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* @brief The implementation of the socket.io connection
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* Clients/endpoints may share the same impl to accomplish multiplexing on the same websocket
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*/
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class SIOClientImpl :
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public cocos2d::Object,
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public WebSocket::Delegate
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{
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private:
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int _port, _heartbeat, _timeout;
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std::string _host, _sid, _uri;
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bool _connected;
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WebSocket *_ws;
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cocos2d::Dictionary* _clients;
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public:
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SIOClientImpl(const std::string& host, int port);
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virtual ~SIOClientImpl(void);
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static SIOClientImpl* create(const std::string& host, int port);
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virtual void onOpen(WebSocket* ws);
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virtual void onMessage(WebSocket* ws, const WebSocket::Data& data);
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virtual void onClose(WebSocket* ws);
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virtual void onError(WebSocket* ws, const WebSocket::ErrorCode& error);
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void connect();
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void disconnect();
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bool init();
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void handshake();
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void handshakeResponse(HttpClient *sender, HttpResponse *response);
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void openSocket();
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void heartbeat(float dt);
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SIOClient* getClient(const std::string& endpoint);
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void addClient(const std::string& endpoint, SIOClient* client);
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void connectToEndpoint(const std::string& endpoint);
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void disconnectFromEndpoint(const std::string& endpoint);
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void send(std::string endpoint, std::string s);
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void emit(std::string endpoint, std::string eventname, std::string args);
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};
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//method implementations
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//begin SIOClientImpl methods
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SIOClientImpl::SIOClientImpl(const std::string& host, int port) :
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_port(port),
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_host(host),
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_connected(false)
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{
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_clients = Dictionary::create();
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_clients->retain();
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std::stringstream s;
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s << host << ":" << port;
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_uri = s.str();
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_ws = nullptr;
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}
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SIOClientImpl::~SIOClientImpl()
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{
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if (_connected) disconnect();
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CC_SAFE_RELEASE(_clients);
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CC_SAFE_DELETE(_ws);
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}
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void SIOClientImpl::handshake()
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{
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log("SIOClientImpl::handshake() called");
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std::stringstream pre;
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pre << "http://" << _uri << "/socket.io/1";
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HttpRequest* request = new HttpRequest();
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request->setUrl(pre.str().c_str());
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request->setRequestType(HttpRequest::Type::GET);
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request->setResponseCallback(this, httpresponse_selector(SIOClientImpl::handshakeResponse));
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request->setTag("handshake");
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log("SIOClientImpl::handshake() waiting");
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HttpClient::getInstance()->send(request);
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request->release();
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return;
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}
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void SIOClientImpl::handshakeResponse(HttpClient *sender, HttpResponse *response)
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{
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log("SIOClientImpl::handshakeResponse() called");
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if (0 != strlen(response->getHttpRequest()->getTag()))
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{
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log("%s completed", response->getHttpRequest()->getTag());
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}
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int statusCode = response->getResponseCode();
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char statusString[64] = {};
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sprintf(statusString, "HTTP Status Code: %d, tag = %s", statusCode, response->getHttpRequest()->getTag());
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log("response code: %d", statusCode);
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if (!response->isSucceed())
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{
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log("SIOClientImpl::handshake() failed");
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log("error buffer: %s", response->getErrorBuffer());
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DictElement* el = NULL;
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CCDICT_FOREACH(_clients, el) {
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SIOClient* c = static_cast<SIOClient*>(el->getObject());
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c->getDelegate()->onError(c, response->getErrorBuffer());
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}
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return;
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}
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log("SIOClientImpl::handshake() succeeded");
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std::vector<char> *buffer = response->getResponseData();
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std::stringstream s;
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for (unsigned int i = 0; i < buffer->size(); i++)
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{
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s << (*buffer)[i];
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}
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log("SIOClientImpl::handshake() dump data: %s", s.str().c_str());
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std::string res = s.str();
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std::string sid;
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int pos = 0;
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int heartbeat = 0, timeout = 0;
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pos = res.find(":");
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if(pos >= 0)
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{
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sid = res.substr(0, pos);
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res.erase(0, pos+1);
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}
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pos = res.find(":");
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if(pos >= 0)
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{
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heartbeat = atoi(res.substr(pos+1, res.size()).c_str());
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}
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pos = res.find(":");
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if(pos >= 0)
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{
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timeout = atoi(res.substr(pos+1, res.size()).c_str());
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}
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_sid = sid;
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_heartbeat = heartbeat;
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_timeout = timeout;
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openSocket();
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return;
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}
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void SIOClientImpl::openSocket()
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{
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log("SIOClientImpl::openSocket() called");
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std::stringstream s;
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s << _uri << "/socket.io/1/websocket/" << _sid;
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_ws = new WebSocket();
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if (!_ws->init(*this, s.str()))
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{
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CC_SAFE_DELETE(_ws);
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}
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return;
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}
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bool SIOClientImpl::init()
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{
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log("SIOClientImpl::init() successful");
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return true;
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}
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void SIOClientImpl::connect()
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{
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this->handshake();
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}
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void SIOClientImpl::disconnect()
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{
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if(_ws->getReadyState() == WebSocket::State::OPEN)
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{
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std::string s = "0::";
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_ws->send(s);
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log("Disconnect sent");
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_ws->close();
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}
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Director::getInstance()->getScheduler()->unscheduleAllForTarget(this);
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_connected = false;
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SocketIO::instance()->removeSocket(_uri);
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}
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SIOClientImpl* SIOClientImpl::create(const std::string& host, int port)
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{
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SIOClientImpl *s = new SIOClientImpl(host, port);
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if (s && s->init())
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{
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return s;
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}
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return nullptr;
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}
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SIOClient* SIOClientImpl::getClient(const std::string& endpoint)
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{
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return static_cast<SIOClient*>(_clients->objectForKey(endpoint));
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}
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void SIOClientImpl::addClient(const std::string& endpoint, SIOClient* client)
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{
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_clients->setObject(client, endpoint);
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}
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void SIOClientImpl::connectToEndpoint(const std::string& endpoint)
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{
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std::string path = endpoint == "/" ? "" : endpoint;
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std::string s = "1::" + path;
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_ws->send(s);
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}
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void SIOClientImpl::disconnectFromEndpoint(const std::string& endpoint)
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{
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_clients->removeObjectForKey(endpoint);
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if(_clients->count() == 0 || endpoint == "/")
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{
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log("SIOClientImpl::disconnectFromEndpoint out of endpoints, checking for disconnect");
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if(_connected) this->disconnect();
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}
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else
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{
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std::string path = endpoint == "/" ? "" : endpoint;
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std::string s = "0::" + path;
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_ws->send(s);
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}
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}
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void SIOClientImpl::heartbeat(float dt)
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{
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std::string s = "2::";
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_ws->send(s);
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log("Heartbeat sent");
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}
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void SIOClientImpl::send(std::string endpoint, std::string s)
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{
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std::stringstream pre;
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std::string path = endpoint == "/" ? "" : endpoint;
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pre << "3::" << path << ":" << s;
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std::string msg = pre.str();
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log("sending message: %s", msg.c_str());
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_ws->send(msg);
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}
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void SIOClientImpl::emit(std::string endpoint, std::string eventname, std::string args)
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{
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std::stringstream pre;
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std::string path = endpoint == "/" ? "" : endpoint;
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pre << "5::" << path << ":{\"name\":\"" << eventname << "\",\"args\":" << args << "}";
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std::string msg = pre.str();
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log("emitting event with data: %s", msg.c_str());
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_ws->send(msg);
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}
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void SIOClientImpl::onOpen(WebSocket* ws)
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{
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_connected = true;
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SocketIO::instance()->addSocket(_uri, this);
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DictElement* e = NULL;
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CCDICT_FOREACH(_clients, e)
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{
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SIOClient *c = static_cast<SIOClient*>(e->getObject());
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c->onOpen();
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}
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Director::getInstance()->getScheduler()->scheduleSelector(schedule_selector(SIOClientImpl::heartbeat), this, (_heartbeat * .9), false);
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log("SIOClientImpl::onOpen socket connected!");
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}
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void SIOClientImpl::onMessage(WebSocket* ws, const WebSocket::Data& data)
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{
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log("SIOClientImpl::onMessage received: %s", data.bytes);
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int control = atoi(&data.bytes[0]);
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std::string payload, msgid, endpoint, s_data, eventname;
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payload = data.bytes;
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int pos, pos2;
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pos = payload.find(":");
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if(pos >=0 ) {
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payload.erase(0, pos+1);
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}
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pos = payload.find(":");
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if(pos > 0 ) {
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msgid = atoi(payload.substr(0, pos+1).c_str());
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}
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payload.erase(0, pos+1);
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pos = payload.find(":");
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if(pos >= 0)
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{
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endpoint = payload.substr(0, pos);
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payload.erase(0, pos+1);
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}
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else
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{
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endpoint = payload;
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}
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if (endpoint == "") endpoint = "/";
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s_data = payload;
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SIOClient *c = NULL;
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c = getClient(endpoint);
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if (c == NULL) log("SIOClientImpl::onMessage client lookup returned NULL");
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switch(control)
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{
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case 0:
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log("Received Disconnect Signal for Endpoint: %s\n", endpoint.c_str());
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if(c) c->receivedDisconnect();
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disconnectFromEndpoint(endpoint);
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break;
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case 1:
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log("Connected to endpoint: %s \n",endpoint.c_str());
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if(c) c->onConnect();
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break;
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case 2:
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log("Heartbeat received\n");
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break;
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case 3:
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log("Message received: %s \n", s_data.c_str());
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if(c) c->getDelegate()->onMessage(c, s_data);
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break;
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case 4:
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log("JSON Message Received: %s \n", s_data.c_str());
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if(c) c->getDelegate()->onMessage(c, s_data);
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break;
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case 5:
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log("Event Received with data: %s \n", s_data.c_str());
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if(c)
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{
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eventname = "";
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pos = s_data.find(":");
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pos2 = s_data.find(",");
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if(pos2 > pos)
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{
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s_data = s_data.substr(pos+1, pos2-pos-1);
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std::remove_copy(s_data.begin(), s_data.end(),
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std::back_inserter(eventname), '"');
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}
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c->fireEvent(eventname, payload);
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}
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break;
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case 6:
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log("Message Ack\n");
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break;
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case 7:
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log("Error\n");
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if(c) c->getDelegate()->onError(c, s_data);
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break;
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case 8:
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log("Noop\n");
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break;
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}
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return;
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}
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void SIOClientImpl::onClose(WebSocket* ws)
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{
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if(_clients->count() > 0)
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{
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DictElement *e;
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CCDICT_FOREACH(_clients, e)
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{
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SIOClient *c = static_cast<SIOClient *>(e->getObject());
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c->receivedDisconnect();
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}
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}
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this->release();
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}
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void SIOClientImpl::onError(WebSocket* ws, const WebSocket::ErrorCode& error)
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{
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}
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//begin SIOClient methods
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SIOClient::SIOClient(const std::string& host, int port, const std::string& path, SIOClientImpl* impl, SocketIO::SIODelegate& delegate)
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: _port(port)
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, _host(host)
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, _path(path)
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, _connected(false)
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, _socket(impl)
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, _delegate(&delegate)
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{
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}
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SIOClient::~SIOClient(void)
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{
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if (_connected)
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{
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_socket->disconnectFromEndpoint(_path);
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}
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}
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void SIOClient::onOpen()
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{
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if (_path != "/")
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{
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_socket->connectToEndpoint(_path);
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}
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}
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void SIOClient::onConnect()
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{
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_connected = true;
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_delegate->onConnect(this);
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}
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void SIOClient::send(std::string s)
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{
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if (_connected)
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{
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_socket->send(_path, s);
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}
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else
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{
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_delegate->onError(this, "Client not yet connected");
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}
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}
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void SIOClient::emit(std::string eventname, std::string args)
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{
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if(_connected)
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{
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_socket->emit(_path, eventname, args);
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}
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else
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{
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_delegate->onError(this, "Client not yet connected");
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}
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}
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void SIOClient::disconnect()
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{
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_connected = false;
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_socket->disconnectFromEndpoint(_path);
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_delegate->onClose(this);
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this->release();
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}
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void SIOClient::receivedDisconnect()
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{
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_connected = false;
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_delegate->onClose(this);
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this->release();
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}
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void SIOClient::on(const std::string& eventName, SIOEvent e)
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{
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_eventRegistry[eventName] = e;
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}
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void SIOClient::fireEvent(const std::string& eventName, const std::string& data)
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{
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log("SIOClient::fireEvent called with event name: %s and data: %s", eventName.c_str(), data.c_str());
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if(_eventRegistry[eventName])
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{
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SIOEvent e = _eventRegistry[eventName];
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e(this, data);
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return;
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}
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log("SIOClient::fireEvent no event with name %s found", eventName.c_str());
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}
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//begin SocketIO methods
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SocketIO *SocketIO::_inst = nullptr;
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SocketIO::SocketIO()
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{
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_sockets = Dictionary::create();
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_sockets->retain();
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}
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SocketIO::~SocketIO(void)
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{
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CC_SAFE_RELEASE(_sockets);
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delete _inst;
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}
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SocketIO* SocketIO::instance()
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{
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if(!_inst) _inst = new SocketIO();
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return _inst;
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}
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SIOClient* SocketIO::connect(SocketIO::SIODelegate& delegate, const std::string& uri)
|
|
{
|
|
std::string host = uri;
|
|
int port = 0;
|
|
int pos = 0;
|
|
|
|
pos = host.find("//");
|
|
if (pos >= 0)
|
|
{
|
|
host.erase(0, pos+2);
|
|
}
|
|
|
|
pos = host.find(":");
|
|
if (pos >= 0)
|
|
{
|
|
port = atoi(host.substr(pos+1, host.size()).c_str());
|
|
}
|
|
|
|
pos = host.find("/", 0);
|
|
std::string path = "/";
|
|
if (pos >= 0)
|
|
{
|
|
path += host.substr(pos + 1, host.size());
|
|
}
|
|
|
|
pos = host.find(":");
|
|
if (pos >= 0)
|
|
{
|
|
host.erase(pos, host.size());
|
|
}
|
|
else if ((pos = host.find("/"))>=0)
|
|
{
|
|
host.erase(pos, host.size());
|
|
}
|
|
|
|
std::stringstream s;
|
|
s << host << ":" << port;
|
|
|
|
SIOClientImpl* socket = nullptr;
|
|
SIOClient *c = nullptr;
|
|
|
|
socket = SocketIO::instance()->getSocket(s.str());
|
|
|
|
if(socket == nullptr)
|
|
{
|
|
//create a new socket, new client, connect
|
|
socket = SIOClientImpl::create(host, port);
|
|
|
|
c = new SIOClient(host, port, path, socket, delegate);
|
|
|
|
socket->addClient(path, c);
|
|
|
|
socket->connect();
|
|
}
|
|
else
|
|
{
|
|
//check if already connected to endpoint, handle
|
|
c = socket->getClient(path);
|
|
|
|
if(c == NULL)
|
|
{
|
|
c = new SIOClient(host, port, path, socket, delegate);
|
|
|
|
socket->addClient(path, c);
|
|
|
|
socket->connectToEndpoint(path);
|
|
}
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
SIOClientImpl* SocketIO::getSocket(const std::string& uri)
|
|
{
|
|
return static_cast<SIOClientImpl*>(_sockets->objectForKey(uri));
|
|
}
|
|
|
|
void SocketIO::addSocket(const std::string& uri, SIOClientImpl* socket)
|
|
{
|
|
_sockets->setObject(socket, uri);
|
|
}
|
|
|
|
void SocketIO::removeSocket(const std::string& uri)
|
|
{
|
|
_sockets->removeObjectForKey(uri);
|
|
}
|
|
|
|
} |