spectrum2/backends/twitter/main.cpp
2012-05-29 18:02:47 +05:30

345 lines
11 KiB
C++

#include "transport/config.h"
#include "transport/networkplugin.h"
#include "transport/logging.h"
#include "transport/sqlite3backend.h"
#include "transport/mysqlbackend.h"
#include "transport/pqxxbackend.h"
#include "transport/storagebackend.h"
#include "Swiften/Swiften.h"
#include "unistd.h"
#include "signal.h"
#include "sys/wait.h"
#include "sys/signal.h"
#include <boost/algorithm/string.hpp>
#include "twitcurl.h"
#include <iostream>
#include <sstream>
#include <map>
#include <vector>
#include <cstdio>
#include "userdb.h"
using namespace boost::filesystem;
using namespace boost::program_options;
using namespace Transport;
DEFINE_LOGGER(logger, "Twitter Backend");
Swift::SimpleEventLoop *loop_; // Event Loop
class TwitterPlugin; // The plugin
TwitterPlugin * np = NULL;
StorageBackend *storagebackend;
class TwitterPlugin : public NetworkPlugin {
public:
Swift::BoostNetworkFactories *m_factories;
Swift::BoostIOServiceThread m_boostIOServiceThread;
boost::shared_ptr<Swift::Connection> m_conn;
TwitterPlugin(Config *config, Swift::SimpleEventLoop *loop, const std::string &host, int port) : NetworkPlugin() {
this->config = config;
if(CONFIG_HAS_KEY(config, "twitter.consumer_key") == false ||
CONFIG_HAS_KEY(config, "twitter.consumer_secret") == false) {
LOG4CXX_ERROR(logger, "Couldn't find consumer key and/or secret. Please check config file.");
exit(0);
}
consumerKey = CONFIG_STRING(config, "twitter.consumer_key");
consumerSecret = CONFIG_STRING(config, "twitter.consumer_secret");
OAUTH_KEY = "oauth_key";
OAUTH_SECRET = "oauth_secret";
m_factories = new Swift::BoostNetworkFactories(loop);
m_conn = m_factories->getConnectionFactory()->createConnection();
m_conn->onDataRead.connect(boost::bind(&TwitterPlugin::_handleDataRead, this, _1));
m_conn->connect(Swift::HostAddressPort(Swift::HostAddress(host), port));
//db = new UserDB(std::string("user.db"));
//registeredUsers = db->getRegisteredUsers();
LOG4CXX_INFO(logger, "Starting the plugin.");
}
~TwitterPlugin() {
//delete db;
delete storagebackend;
std::map<std::string, twitCurl*>::iterator it;
for(it = sessions.begin() ; it != sessions.end() ; it++) delete it->second;
}
// Send data to NetworkPlugin server
void sendData(const std::string &string) {
m_conn->write(Swift::createSafeByteArray(string));
}
// Receive date from the NetworkPlugin server and invoke the appropirate payload handler (implement in the NetworkPlugin class)
void _handleDataRead(boost::shared_ptr<Swift::SafeByteArray> data) {
std::string d(data->begin(), data->end());
handleDataRead(d);
}
// User trying to login into his twitter account
void handleLoginRequest(const std::string &user, const std::string &legacyName, const std::string &password) {
if(connectionState.count(user) && (connectionState[user] == NEW ||
connectionState[user] == CONNECTED ||
connectionState[user] == WAITING_FOR_PIN)) {
LOG4CXX_INFO(logger, std::string("A session corresponding to ") + user + std::string(" is already active"))
return;
}
LOG4CXX_INFO(logger, std::string("Received login request for ") + user)
std::string username = user.substr(0,user.find('@'));
std::string passwd = password;
LOG4CXX_INFO(logger, username + " " + passwd)
sessions[user] = new twitCurl();
handleConnected(user);
handleBuddyChanged(user, "twitter-account", "twitter", std::vector<std::string>(), pbnetwork::STATUS_ONLINE);
if(CONFIG_HAS_KEY(config,"proxy.server")) {
std::string ip = CONFIG_STRING(config,"proxy.server");
std::ostringstream out;
out << CONFIG_INT(config,"proxy.port");
std::string port = out.str();
std::string puser = CONFIG_STRING(config,"proxy.user");
std::string ppasswd = CONFIG_STRING(config,"proxy.password");
LOG4CXX_INFO(logger, ip << " " << port << " " << puser << " " << ppasswd)
if(ip != "localhost" && port != "0") {
sessions[user]->setProxyServerIp(ip);
sessions[user]->setProxyServerPort(port);
sessions[user]->setProxyUserName(puser);
sessions[user]->setProxyPassword(ppasswd);
}
}
connectionState[user] = NEW;
sessions[user]->setTwitterUsername(username);
sessions[user]->setTwitterPassword(passwd);
sessions[user]->getOAuth().setConsumerKey(consumerKey);
sessions[user]->getOAuth().setConsumerSecret(consumerSecret);
LOG4CXX_INFO(logger, "Querying database for usersettings of " << user)
UserInfo info;
storagebackend->getUser(user, info);
std::string key="", secret="";
int type;
storagebackend->getUserSetting((long)info.id, OAUTH_KEY, type, key);
storagebackend->getUserSetting((long)info.id, OAUTH_SECRET, type, secret);
if(key == "" || secret == ""/*registeredUsers.count(user) == 0*/) {
LOG4CXX_INFO(logger, "Intiating oauthflow for user " << user)
std::string authUrl;
if (sessions[user]->oAuthRequestToken( authUrl ) == false ) {
LOG4CXX_ERROR(logger, "Error creating twitter authorization url!");
handleLogoutRequest(user, username);
return;
}
handleMessage(user, "twitter-account", std::string("Please visit the following link and authorize this application: ") + authUrl);
handleMessage(user, "twitter-account", std::string("Please reply with the PIN provided by twitter. Prefix the pin with 'pin:'. Ex. 'pin: 1234'"));
connectionState[user] = WAITING_FOR_PIN;
} else {
//std::vector<std::string> keysecret;
//db->fetch(user, keysecret);
LOG4CXX_INFO(logger, user << " is already registerd. Using the stored oauth key and secret")
LOG4CXX_INFO(logger, key << " " << secret)
sessions[user]->getOAuth().setOAuthTokenKey( key );
sessions[user]->getOAuth().setOAuthTokenSecret( secret );
connectionState[user] = CONNECTED;
}
}
// User logging out
void handleLogoutRequest(const std::string &user, const std::string &legacyName) {
delete sessions[user];
sessions[user] = NULL;
connectionState[user] = DISCONNECTED;
}
void handleMessageSendRequest(const std::string &user, const std::string &legacyName, const std::string &message, const std::string &xhtml = "") {
LOG4CXX_INFO(logger, "Sending message from " << user << " to " << legacyName << ".");
if(legacyName == "twitter-account") {
std::string cmd = message.substr(0, message.find(':'));
std::string data = message.substr(message.find(':') + 1);
handleMessage(user, "twitter-account", cmd + " " + data);
if(cmd == "pin") {
sessions[user]->getOAuth().setOAuthPin( data );
if (sessions[user]->oAuthAccessToken() == false) {
LOG4CXX_ERROR(logger, "Error while exchanging PIN with AcessToken!")
handleLogoutRequest(user, "");
return;
}
std::string OAuthAccessTokenKey, OAuthAccessTokenSecret;
sessions[user]->getOAuth().getOAuthTokenKey( OAuthAccessTokenKey );
sessions[user]->getOAuth().getOAuthTokenSecret( OAuthAccessTokenSecret );
//db->insert(UserData(user, OAuthAccessTokenKey, OAuthAccessTokenSecret));
//registeredUsers.insert(user);
UserInfo info;
if(storagebackend->getUser(user, info) == false) {
LOG4CXX_ERROR(logger, "Didn't find entry for " << user << " in the database!")
handleLogoutRequest(user, "");
return;
}
storagebackend->updateUserSetting((long)info.id, OAUTH_KEY, OAuthAccessTokenKey);
storagebackend->updateUserSetting((long)info.id, OAUTH_SECRET, OAuthAccessTokenSecret);
connectionState[user] = CONNECTED;
LOG4CXX_INFO(logger, "Sent PIN " << data << " and obtained access token");
}
if(cmd == "status") {
if(connectionState[user] != CONNECTED) {
LOG4CXX_ERROR(logger, "Trying to update status for " << user << " when not connected!");
return;
}
std::string replyMsg;
if( sessions[user]->statusUpdate( data ) ) {
sessions[user]->getLastWebResponse( replyMsg );
LOG4CXX_INFO(logger, "twitCurl:statusUpdate web response: " << replyMsg );
}
else {
sessions[user]->getLastCurlError( replyMsg );
LOG4CXX_INFO(logger, "twitCurl::statusUpdate error: " << replyMsg );
}
LOG4CXX_INFO(logger, "Updated status for " << user << ": " << data);
}
if(cmd == "#timeline") {
if(connectionState[user] != CONNECTED) {
LOG4CXX_ERROR(logger, "Trying to update status for " << user << " when not connected!");
return;
}
std::string replyMsg;
if( sessions[user]->timelinePublicGet() ) {
sessions[user]->getLastWebResponse( replyMsg );
LOG4CXX_INFO(logger, "twitCurl::timeline web response: " << replyMsg );
handleMessage(user, "twitter-account", replyMsg);
} else {
sessions[user]->getLastCurlError( replyMsg );
LOG4CXX_INFO(logger, "twitCurl::timeline error: " << replyMsg );
}
}
}
}
void handleBuddyUpdatedRequest(const std::string &user, const std::string &buddyName, const std::string &alias, const std::vector<std::string> &groups) {
LOG4CXX_INFO(logger, user << ": Added buddy " << buddyName << ".");
handleBuddyChanged(user, buddyName, alias, groups, pbnetwork::STATUS_ONLINE);
}
void handleBuddyRemovedRequest(const std::string &user, const std::string &buddyName, const std::vector<std::string> &groups) {
}
private:
enum status {NEW, WAITING_FOR_PIN, CONNECTED, DISCONNECTED};
Config *config;
//UserDB *db;
std::string consumerKey;
std::string consumerSecret;
//std::set<std::string> registeredUsers;
std::map<std::string, twitCurl*> sessions;
std::map<std::string, status> connectionState;
std::string OAUTH_KEY;
std::string OAUTH_SECRET;
};
static void spectrum_sigchld_handler(int sig)
{
int status;
pid_t pid;
do {
pid = waitpid(-1, &status, WNOHANG);
} while (pid != 0 && pid != (pid_t)-1);
if ((pid == (pid_t) - 1) && (errno != ECHILD)) {
char errmsg[BUFSIZ];
snprintf(errmsg, BUFSIZ, "Warning: waitpid() returned %d", pid);
perror(errmsg);
}
}
int main (int argc, char* argv[]) {
std::string host;
int port;
if (signal(SIGCHLD, spectrum_sigchld_handler) == SIG_ERR) {
std::cout << "SIGCHLD handler can't be set\n";
return -1;
}
boost::program_options::options_description desc("Usage: spectrum [OPTIONS] <config_file.cfg>\nAllowed options");
desc.add_options()
("host,h", value<std::string>(&host), "host")
("port,p", value<int>(&port), "port")
;
try
{
boost::program_options::variables_map vm;
boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), vm);
boost::program_options::notify(vm);
}
catch (std::runtime_error& e)
{
std::cout << desc << "\n";
exit(1);
}
catch (...)
{
std::cout << desc << "\n";
exit(1);
}
if (argc < 5) {
return 1;
}
Config config;
if (!config.load(argv[5])) {
std::cerr << "Can't open " << argv[1] << " configuration file.\n";
return 1;
}
Logging::initBackendLogging(&config);
std::string error;
storagebackend = StorageBackend::createBackend(&config, error);
if (storagebackend == NULL) {
LOG4CXX_ERROR(logger, "Error creating StorageBackend! " << error)
return -2;
}
else if (!storagebackend->connect()) {
LOG4CXX_ERROR(logger, "Can't connect to database!")
return -1;
}
Swift::SimpleEventLoop eventLoop;
loop_ = &eventLoop;
np = new TwitterPlugin(&config, &eventLoop, host, port);
loop_->run();
return 0;
}