Support for registering OAuth2 users using spectrum2_manager + lot of Slack improvements

include/transport/Frontend.h

@@ -92,6 +92,7 @@ class Frontend {
 		virtual void addRoomToRoomList(const std::string &handle, const std::string &name) = 0;
 
 		virtual std::string setOAuth2Code(const std::string &code, const std::string &state) { return "OAuth2 code is not needed for this frontend."; }
+		virtual std::string getOAuth2URL(const std::vector<std::string> &args) { return ""; }
 
 		boost::signal<void (User *, const std::string &name, unsigned int id)> onVCardRequired;
 		boost::signal<void (User *, boost::shared_ptr<Swift::VCard> vcard)> onVCardUpdated;

include/transport/HTTPRequest.h

@@ -1,20 +1,27 @@
-#ifndef HTTPREQ_H
-#define HTTPREQ_H
+
+#pragma once
 
 #include "curl/curl.h"
 #include "transport/Logging.h"
+#include "transport/ThreadPool.h"
 #include <iostream>
 #include <sstream>
 #include <string.h>
 #include "rapidjson/document.h"
 
+#include <boost/signal.hpp>
+
 namespace Transport {
 
-class HTTPRequest {
+class HTTPRequest : public Thread {
 	public:
-		HTTPRequest();
+		typedef enum { Get } Type;
+		typedef boost::function< void (HTTPRequest *, bool, rapidjson::Document &json, const std::string &data) > Callback;
+
+		HTTPRequest(ThreadPool *tp, Type type, const std::string &url, Callback callback);
+		HTTPRequest(Type type, const std::string &url);
 
-		~HTTPRequest() {
+		virtual ~HTTPRequest() {
 			if(curlhandle) {
 				curl_easy_cleanup(curlhandle);
 				curlhandle = NULL;
@@ -22,17 +29,32 @@ class HTTPRequest {
 		}
 
 		void setProxy(std::string, std::string, std::string, std::string);
-		bool GET(std::string url, std::string &output);
-		bool GET(std::string url, rapidjson::Document &json);
-		std::string getCurlError() {return std::string(curl_errorbuffer);}
+		bool execute();
+		bool execute(rapidjson::Document &json);
+		std::string getError() {return std::string(curl_errorbuffer);}
+
+		void run();
+		void finalize();
+
+		boost::signal<void ()> onRequestFinished;
 
 	private:
 		bool init();
+		bool GET(std::string url, std::string &output);
+		bool GET(std::string url, rapidjson::Document &json);
+
 
 		CURL *curlhandle;
 		char curl_errorbuffer[1024];
 		std::string error;
 		std::string callbackdata;
+		ThreadPool *m_tp;
+		std::string m_url;
+		bool m_ok;
+		rapidjson::Document m_json;
+		std::string m_data;
+		Callback m_callback;
+		Type m_type;
 
 		static int curlCallBack(char* data, size_t size, size_t nmemb, HTTPRequest *obj);
 
@@ -40,4 +62,3 @@ class HTTPRequest {
 
 }
 
-#endif

include/transport/HTTPRequestQueue.h

@@ -0,0 +1,33 @@
+
+#pragma once
+
+#include "curl/curl.h"
+#include "transport/Logging.h"
+#include "transport/ThreadPool.h"
+#include <iostream>
+#include <sstream>
+#include <string.h>
+#include "rapidjson/document.h"
+
+namespace Transport {
+
+class HTTPRequest;
+
+class HTTPRequestQueue {
+	public:
+		HTTPRequestQueue(int delayBetweenRequests = 1);
+
+		virtual ~HTTPRequestQueue();
+
+		void queueRequest(HTTPRequest *req);
+
+		void sendNextRequest();
+
+	private:
+		int m_delay;
+		std::queue<HTTPRequest *> m_queue;
+		bool m_processing;
+};
+
+}
+

include/transport/MySQLBackend.h

@@ -83,6 +83,8 @@ class MySQLBackend : public StorageBackend
 
 		bool getOnlineUsers(std::vector<std::string> &users);
 
+		bool getUsers(std::vector<std::string> &users);
+
 		long addBuddy(long userId, const BuddyInfo &buddyInfo);
 
 		void updateBuddy(long userId, const BuddyInfo &buddyInfo);
@@ -156,6 +158,7 @@ class MySQLBackend : public StorageBackend
 		Statement *m_getBuddiesSettings;
 		Statement *m_setUserOnline;
 		Statement *m_getOnlineUsers;
+		Statement *m_getUsers;
 };
 
 }

include/transport/OAuth2.h

@@ -35,7 +35,11 @@ class OAuth2 {
 
 		std::string generateAuthURL();
 
-		std::string handleOAuth2Code(const std::string &code, const std::string &state);
+		const std::string &getState() {
+			return m_state;
+		}
+
+		std::string requestToken(const std::string &code, std::string &error);
 
 	private:
 		std::string m_clientId;

include/transport/PQXXBackend.h

@@ -83,6 +83,8 @@ class PQXXBackend : public StorageBackend
 
 		bool getOnlineUsers(std::vector<std::string> &users);
 
+		bool getUsers(std::vector<std::string> &users);
+
 		long addBuddy(long userId, const BuddyInfo &buddyInfo);
 
 		void updateBuddy(long userId, const BuddyInfo &buddyInfo);

include/transport/SQLite3Backend.h

@@ -72,6 +72,8 @@ class SQLite3Backend : public StorageBackend
 
 		bool getOnlineUsers(std::vector<std::string> &users);
 
+		bool getUsers(std::vector<std::string> &users);
+
 		/// Removes user and all connected data from database.
 		/// \param id id of user - UserInfo.id
 		/// \return true if user has been found in database and removed
@@ -124,6 +126,7 @@ class SQLite3Backend : public StorageBackend
 		sqlite3_stmt *m_getBuddiesSettings;
 		sqlite3_stmt *m_setUserOnline;
 		sqlite3_stmt *m_getOnlineUsers;
+		sqlite3_stmt *m_getUsers;
 };
 
 }

include/transport/StorageBackend.h

@@ -123,6 +123,8 @@ class StorageBackend
 		/// getOnlineUsers
 		virtual bool getOnlineUsers(std::vector<std::string> &users) = 0;
 
+		virtual bool getUsers(std::vector<std::string> &users) = 0;
+
 		virtual long addBuddy(long userId, const BuddyInfo &buddyInfo) = 0;
 		virtual void updateBuddy(long userId, const BuddyInfo &buddyInfo) = 0;
 		virtual void removeBuddy(long id) = 0;

include/transport/ThreadPool.h

@@ -1,5 +1,4 @@
-#ifndef THREAD_POOL
-#define THREAD_POOL
+#pragma once 
 
 #include <boost/thread.hpp>
 #include <boost/thread/mutex.hpp>
@@ -8,6 +7,7 @@
 #include <iostream>
 #include "Swiften/EventLoop/EventLoop.h"
 
+namespace Transport {
 
 /*
  * Thread serves as a base class for any code that has to be excuted as a thread
@@ -70,4 +70,4 @@ class ThreadPool
 	void releaseThread(int i);
 };
 
-#endif
+}

spectrum/src/frontends/slack/SlackAPI.cpp

@@ -0,0 +1,133 @@
+/**
+ * XMPP - libpurple transport
+ *
+ * Copyright (C) 2009, Jan Kaluza <hanzz@soc.pidgin.im>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#include "SlackAPI.h"
+#include "SlackFrontend.h"
+#include "SlackUser.h"
+#include "SlackRTM.h"
+
+#include "transport/Transport.h"
+#include "transport/HTTPRequest.h"
+#include "transport/Util.h"
+
+#include <boost/foreach.hpp>
+#include <boost/make_shared.hpp>
+#include <map>
+#include <iterator>
+
+namespace Transport {
+
+DEFINE_LOGGER(logger, "SlackAPI");
+
+SlackAPI::SlackAPI(Component *component, UserInfo uinfo) : m_uinfo(uinfo) {
+	m_component = component;
+}
+
+SlackAPI::~SlackAPI() {
+}
+
+void SlackAPI::handleSendMessage(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	LOG4CXX_INFO(logger, data);
+}
+
+void SlackAPI::sendMessage(const std::string &from, const std::string &to, const std::string &text) {
+	std::string url = "https://slack.com/api/chat.postMessage?";
+	url += "&username=" + Util::urlencode(from);
+	url += "&channel=" + Util::urlencode(to);
+	url += "&text=" + Util::urlencode(text);
+	url += "&token=" + Util::urlencode(m_uinfo.encoding);
+
+	HTTPRequest *req = new HTTPRequest(THREAD_POOL(m_component), HTTPRequest::Get, url,
+			boost::bind(&SlackAPI::handleSendMessage, this, _1, _2, _3, _4));
+	queueRequest(req);
+}
+
+std::string SlackAPI::getChannelId(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	if (!ok) {
+		LOG4CXX_ERROR(logger, req->getError());
+		LOG4CXX_ERROR(logger, data);
+		return "";
+	}
+
+	rapidjson::Value &channel = resp["channel"];
+	if (!channel.IsObject()) {
+		LOG4CXX_ERROR(logger, "No 'channel' object in the reply.");
+		LOG4CXX_ERROR(logger, data);
+		return "";
+	}
+
+	rapidjson::Value &id = channel["id"];
+	if (!id.IsString()) {
+		LOG4CXX_ERROR(logger, "No 'id' string in the reply.");
+		LOG4CXX_ERROR(logger, data);
+		return "";
+	}
+
+	return id.GetString();
+}
+
+void SlackAPI::imOpen(const std::string &uid, HTTPRequest::Callback callback) {
+	std::string url = "https://slack.com/api/im.open?user=" + Util::urlencode(uid) + "&token=" + Util::urlencode(m_uinfo.encoding);
+	HTTPRequest *req = new HTTPRequest(THREAD_POOL(m_component), HTTPRequest::Get, url, callback);
+	queueRequest(req);
+}
+
+std::string SlackAPI::getOwnerId(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	if (!ok) {
+		LOG4CXX_ERROR(logger, req->getError());
+		return "";
+	}
+
+	rapidjson::Value &members = resp["members"];
+	if (!members.IsArray()) {
+		LOG4CXX_ERROR(logger, "No 'members' object in the reply.");
+		return "";
+	}
+
+	for (int i = 0; i < members.Size(); i++) {
+		if (!members[i].IsObject()) {
+			continue;
+		}
+
+		rapidjson::Value &is_primary_owner = members[i]["is_primary_owner"];
+		if (!is_primary_owner.IsBool()) {
+			continue;
+		}
+
+		if (is_primary_owner.GetBool()) {
+			rapidjson::Value &name = members[i]["id"];
+			if (!name.IsString()) {
+				LOG4CXX_ERROR(logger, "No 'name' string in the reply.");
+				return "";
+			}
+			return name.GetString();
+		}
+	}
+
+	return "";
+}
+
+void SlackAPI::usersList(HTTPRequest::Callback callback) {
+	std::string url = "https://slack.com/api/users.list?presence=0&token=" + Util::urlencode(m_uinfo.encoding);
+	HTTPRequest *req = new HTTPRequest(THREAD_POOL(m_component), HTTPRequest::Get, url, callback);
+	queueRequest(req);
+}
+
+}

spectrum/src/frontends/slack/SlackAPI.h

@@ -0,0 +1,63 @@
+/**
+ * Spectrum 2 Slack Frontend
+ *
+ * Copyright (C) 2015, Jan Kaluza <hanzz.k@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#pragma once
+
+#include "transport/HTTPRequestQueue.h"
+#include "transport/HTTPRequest.h"
+#include "transport/StorageBackend.h"
+#include "rapidjson/document.h"
+
+#include <string>
+#include <algorithm>
+#include <map>
+
+#include <boost/signal.hpp>
+
+namespace Transport {
+
+class Component;
+class StorageBackend;
+class HTTPRequest;
+class SlackRTM;
+
+class SlackAPI : public HTTPRequestQueue {
+	public:
+		SlackAPI(Component *component, UserInfo uinfo);
+
+		virtual ~SlackAPI();
+
+		void usersList(HTTPRequest::Callback callback);
+		std::string getOwnerId(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+
+		void imOpen(const std::string &uid, HTTPRequest::Callback callback);
+		std::string getChannelId(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+
+		void sendMessage(const std::string &from, const std::string &to, const std::string &text);
+
+	private:
+		void handleSendMessage(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+
+	private:
+		Component *m_component;
+		UserInfo m_uinfo;
+};
+
+}

spectrum/src/frontends/slack/SlackFrontend.cpp

@@ -29,7 +29,7 @@
 #include "transport/Logging.h"
 #include "transport/Config.h"
 #include "transport/Transport.h"
-#include "transport/OAuth2.h"
+#include "transport/ThreadPool.h"
 
 #include <boost/bind.hpp>
 #include <boost/smart_ptr/make_shared.hpp>
@@ -53,18 +53,10 @@ void SlackFrontend::init(Component *transport, Swift::EventLoop *loop, Swift::Ne
 	m_transport = transport;
 	m_config = transport->getConfig();
 	m_jid = Swift::JID(CONFIG_STRING(m_config, "service.jid"));
-
-	std::string redirect_url = "http://spectrum.im/slackoauth2/" + CONFIG_STRING(m_config, "service.jid");
-	m_oauth2 = new OAuth2(CONFIG_STRING_DEFAULTED(m_config, "service.client_id",""),
-						  CONFIG_STRING_DEFAULTED(m_config, "service.client_secret",""),
-						  "https://slack.com/oauth/authorize",
-						  "https://slack.com/api/oauth.access",
-						  redirect_url,
-						  "channels:read channels:write team:read");
+	m_tp = new ThreadPool(loop, 10);
 }
 
 SlackFrontend::~SlackFrontend() {
-	delete m_oauth2;
 }
 
 void SlackFrontend::clearRoomList() {
@@ -97,7 +89,7 @@ boost::shared_ptr<Swift::DiscoInfo> SlackFrontend::sendCapabilitiesRequest(Swift
 }
 
 void SlackFrontend::reconnectUser(const std::string &user) {
-
+	return static_cast<SlackUserManager *>(m_userManager)->reconnectUser(user);
 }
 
 RosterManager *SlackFrontend::createRosterManager(User *user, Component *component) {
@@ -109,20 +101,22 @@ User *SlackFrontend::createUser(const Swift::JID &jid, UserInfo &userInfo, Compo
 }
 
 UserManager *SlackFrontend::createUserManager(Component *component, UserRegistry *userRegistry, StorageBackend *storageBackend) {
-	return new SlackUserManager(component, userRegistry, storageBackend);
+	m_userManager = new SlackUserManager(component, userRegistry, storageBackend);
+	return m_userManager;
 }
 
 
 void SlackFrontend::connectToServer() {
-	LOG4CXX_INFO(logger, "Connecting to Slack API server");
-
-	std::string url = m_oauth2->generateAuthURL();
-	LOG4CXX_INFO(logger, url);
+	LOG4CXX_INFO(logger, "Started.");
+	m_transport->handleConnected();
 }
 
 std::string SlackFrontend::setOAuth2Code(const std::string &code, const std::string &state) {
-	LOG4CXX_INFO(logger, "Using OAuth2 code " << code << " to get the authorization token");
-	return m_oauth2->handleOAuth2Code(code, state);
+	return static_cast<SlackUserManager *>(m_userManager)->handleOAuth2Code(code, state);
+}
+
+std::string SlackFrontend::getOAuth2URL(const std::vector<std::string> &args) {
+	return static_cast<SlackUserManager *>(m_userManager)->getOAuth2URL(args);
 }
 
 void SlackFrontend::disconnectFromServer() {

spectrum/src/frontends/slack/SlackFrontend.h

@@ -25,13 +25,15 @@
 #include <vector>
 #include <boost/bind.hpp>
 
+#define THREAD_POOL(X) static_cast<SlackFrontend *>(X->getFrontend())->getThreadPool()
+
 namespace Transport {
 	class UserRegistry;
 	class Frontend;
 	class Config;
 	class DiscoItemsResponder;
 	class VCardResponder;
-	class OAuth2;
+	class ThreadPool;
 
 	class SlackFrontend : public Frontend {
 		public:
@@ -64,13 +66,19 @@ namespace Transport {
 			virtual void clearRoomList();
 			virtual void addRoomToRoomList(const std::string &handle, const std::string &name);
 			virtual std::string setOAuth2Code(const std::string &code, const std::string &state);
+			virtual std::string getOAuth2URL(const std::vector<std::string> &args);
 		
 			void handleMessage(boost::shared_ptr<Swift::Message> message);
 
+			ThreadPool *getThreadPool() {
+				return m_tp;
+			}
+
 		private:
 			Config* m_config;
 			Swift::JID m_jid;
 			Component *m_transport;
-			OAuth2 *m_oauth2;
+			UserManager *m_userManager;
+			ThreadPool *m_tp;
 	};
 }

spectrum/src/frontends/slack/SlackInstallation.cpp

@@ -0,0 +1,80 @@
+/**
+ * XMPP - libpurple transport
+ *
+ * Copyright (C) 2009, Jan Kaluza <hanzz@soc.pidgin.im>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#include "SlackInstallation.h"
+#include "SlackFrontend.h"
+#include "SlackUser.h"
+#include "SlackRTM.h"
+#include "SlackAPI.h"
+
+#include "transport/Transport.h"
+#include "transport/HTTPRequest.h"
+#include "transport/Util.h"
+
+#include <boost/foreach.hpp>
+#include <boost/make_shared.hpp>
+#include <map>
+#include <iterator>
+
+namespace Transport {
+
+DEFINE_LOGGER(logger, "SlackInstallation");
+
+SlackInstallation::SlackInstallation(Component *component, StorageBackend *storageBackend, UserInfo uinfo) : m_uinfo(uinfo) {
+	m_component = component;
+	m_storageBackend = storageBackend;
+	m_api = new SlackAPI(component, uinfo);
+
+
+	m_api->usersList(boost::bind(&SlackInstallation::handleUsersList, this, _1, _2, _3, _4));
+// 	m_rtm = new SlackRTM(component, storageBackend, uinfo);
+}
+
+SlackInstallation::~SlackInstallation() {
+// 	delete m_rtm;
+	delete m_api;
+}
+
+void SlackInstallation::handleImOpen(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	std::string channel = m_api->getChannelId(req, ok, resp, data);
+	LOG4CXX_INFO(logger, "Opened channel with team owner: " << channel);
+
+	std::string msg;
+	msg = "Hi, It seems you have authorized Spectrum 2 transport for your team. "
+		"As a team owner, you should now configure it. You should provide username and "
+		"password you want to use to connect your team to legacy network of your choice.";
+	m_api->sendMessage("Spectrum 2", channel, msg);
+
+	msg = "You can do it by typing \".spectrum2 register <username> <password>\". Password may be optional.";
+	m_api->sendMessage("Spectrum 2", channel, msg);
+
+	msg = "For example to connect the Freenode IRC network, just type \".spectrum2 register irc.freenode.net\".";
+	m_api->sendMessage("Spectrum 2", channel, msg);
+}
+
+void SlackInstallation::handleUsersList(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	std::string ownerId = m_api->getOwnerId(req, ok, resp, data);
+	LOG4CXX_INFO(logger, "Team owner ID is " << ownerId);
+
+	m_api->imOpen(ownerId, boost::bind(&SlackInstallation::handleImOpen, this, _1, _2, _3, _4));
+}
+
+
+}

spectrum/src/frontends/slack/SlackInstallation.h

@@ -0,0 +1,61 @@
+/**
+ * Spectrum 2 Slack Frontend
+ *
+ * Copyright (C) 2015, Jan Kaluza <hanzz.k@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#pragma once
+
+#include "transport/StorageBackend.h"
+#include "rapidjson/document.h"
+
+#include <string>
+#include <algorithm>
+#include <map>
+
+#include <boost/signal.hpp>
+
+namespace Transport {
+
+class Component;
+class StorageBackend;
+class HTTPRequest;
+class SlackRTM;
+class SlackAPI;
+
+class SlackInstallation {
+	public:
+		SlackInstallation(Component *component, StorageBackend *storageBackend, UserInfo uinfo);
+
+		virtual ~SlackInstallation();
+
+		boost::signal<void (const std::string &user)> onInstallationDone;
+
+	private:
+		void handleUsersList(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+		void handleImOpen(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+
+	private:
+		Component *m_component;
+		StorageBackend *m_storageBackend;
+		UserInfo m_uinfo;
+		std::string m_ownerName;
+		SlackRTM *m_rtm;
+		SlackAPI *m_api;
+};
+
+}

spectrum/src/frontends/slack/SlackRTM.cpp

@@ -0,0 +1,120 @@
+/**
+ * XMPP - libpurple transport
+ *
+ * Copyright (C) 2009, Jan Kaluza <hanzz@soc.pidgin.im>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#include "SlackRTM.h"
+#include "SlackFrontend.h"
+#include "SlackUser.h"
+
+#include "transport/Transport.h"
+#include "transport/HTTPRequest.h"
+#include "transport/Util.h"
+
+#include <boost/foreach.hpp>
+#include <boost/make_shared.hpp>
+#include <map>
+#include <iterator>
+
+namespace Transport {
+
+DEFINE_LOGGER(logger, "SlackRTM");
+
+SlackRTM::SlackRTM(Component *component, StorageBackend *storageBackend, UserInfo uinfo) : m_uinfo(uinfo) {
+	m_component = component;
+	m_storageBackend = storageBackend;
+
+	Swift::TLSOptions o;
+	Swift::PlatformTLSFactories *m_tlsFactory = new Swift::PlatformTLSFactories();
+	m_tlsConnectionFactory = new Swift::TLSConnectionFactory(m_tlsFactory->getTLSContextFactory(), component->getNetworkFactories()->getConnectionFactory(), o);
+
+
+	std::string url = "https://slack.com/api/rtm.start?";
+	url += "token=" + Util::urlencode(m_uinfo.encoding);
+
+// 	HTTPRequest *req = new HTTPRequest();
+// 	req->GET(THREAD_POOL(m_component), url,
+// 			boost::bind(&SlackRTM::handleRTMStart, this, _1, _2, _3, _4));
+}
+
+SlackRTM::~SlackRTM() {
+
+}
+
+void SlackRTM::handleRTMStart(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data) {
+	if (!ok) {
+		LOG4CXX_ERROR(logger, req->getError());
+		LOG4CXX_ERROR(logger, data);
+		return;
+	}
+
+	rapidjson::Value &url = resp["url"];
+	if (!url.IsString()) {
+		LOG4CXX_ERROR(logger, "No 'url' object in the reply.");
+		LOG4CXX_ERROR(logger, data);
+		return;
+	}
+
+	std::string u = url.GetString();
+	LOG4CXX_INFO(logger, "Started RTM, WebSocket URL is " << u);
+
+	u = u.substr(6);
+	m_host = u.substr(0, u.find("/"));
+	m_path = u.substr(u.find("/"));
+
+	LOG4CXX_INFO(logger, "Starting DNS query for " << m_host << " " << m_path);
+	m_dnsQuery = m_component->getNetworkFactories()->getDomainNameResolver()->createAddressQuery(m_host);
+	m_dnsQuery->onResult.connect(boost::bind(&SlackRTM::handleDNSResult, this, _1, _2));
+	m_dnsQuery->run();
+}
+
+void SlackRTM::handleDataRead(boost::shared_ptr<Swift::SafeByteArray> data) {
+	LOG4CXX_INFO(logger, "data read");
+	std::string d = Swift::safeByteArrayToString(*data);
+	LOG4CXX_INFO(logger, d);
+}
+
+void SlackRTM::handleConnected(bool error) {
+	if (error) {
+		LOG4CXX_ERROR(logger, "Connection to " << m_host << " failed");
+		return;
+	}
+
+	LOG4CXX_INFO(logger, "Connected to " << m_host);
+
+	std::string req = "";
+	req += "GET " + m_path + " HTTP/1.1\r\n";
+	req += "Host: " + m_host + ":443\r\n";
+	req += "Upgrade: websocket\r\n";
+	req += "Connection: Upgrade\r\n";
+	req += "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n";
+	req += "Sec-WebSocket-Version: 13\r\n";
+	req += "\r\n";
+
+	m_conn->write(Swift::createSafeByteArray(req));
+
+}
+
+void SlackRTM::handleDNSResult(const std::vector<Swift::HostAddress> &addrs, boost::optional<Swift::DomainNameResolveError>) {
+	m_conn = m_tlsConnectionFactory->createConnection();
+	m_conn->onDataRead.connect(boost::bind(&SlackRTM::handleDataRead, this, _1));
+	m_conn->onConnectFinished.connect(boost::bind(&SlackRTM::handleConnected, this, _1));
+	m_conn->connect(Swift::HostAddressPort(addrs[0], 443));
+}
+
+}

spectrum/src/frontends/slack/SlackRTM.h

@@ -0,0 +1,71 @@
+/**
+ * Spectrum 2 Slack Frontend
+ *
+ * Copyright (C) 2015, Jan Kaluza <hanzz.k@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+
+#pragma once
+
+#include "transport/StorageBackend.h"
+#include "rapidjson/document.h"
+
+#include <Swiften/Network/TLSConnectionFactory.h>
+#include <Swiften/Network/HostAddressPort.h>
+#include <Swiften/TLS/PlatformTLSFactories.h>
+#include <Swiften/TLS/TLSOptions.h>
+#include <Swiften/Network/DomainNameResolveError.h>
+#include <Swiften/Network/DomainNameAddressQuery.h>
+#include <Swiften/Network/DomainNameResolver.h>
+#include <Swiften/Network/HostAddress.h>
+#include <Swiften/Base/SafeByteArray.h>
+
+#include <string>
+#include <algorithm>
+#include <map>
+
+#include <boost/signal.hpp>
+
+namespace Transport {
+
+class Component;
+class StorageBackend;
+class HTTPRequest;
+
+class SlackRTM {
+	public:
+		SlackRTM(Component *component, StorageBackend *storageBackend, UserInfo uinfo);
+
+		virtual ~SlackRTM();
+
+	private:
+		void handleDNSResult(const std::vector<Swift::HostAddress>&, boost::optional<Swift::DomainNameResolveError>);
+		void handleDataRead(boost::shared_ptr<Swift::SafeByteArray> data);
+		void handleConnected(bool error);
+		void handleRTMStart(HTTPRequest *req, bool ok, rapidjson::Document &resp, const std::string &data);
+
+	private:
+		Component *m_component;
+		StorageBackend *m_storageBackend;
+		UserInfo m_uinfo;
+		boost::shared_ptr<Swift::DomainNameAddressQuery> m_dnsQuery;
+		boost::shared_ptr<Swift::Connection> m_conn;
+		Swift::TLSConnectionFactory *m_tlsConnectionFactory;
+		std::string m_host;
+		std::string m_path;
+};
+
+}

spectrum/src/frontends/slack/SlackUserManager.cpp

@@ -21,6 +21,7 @@
 #include "SlackUserManager.h"
 #include "SlackUserRegistration.h"
 #include "SlackFrontend.h"
+#include "SlackInstallation.h"
 
 #include "transport/User.h"
 #include "transport/Transport.h"
@@ -33,6 +34,7 @@ DEFINE_LOGGER(logger, "SlackUserManager");
 
 SlackUserManager::SlackUserManager(Component *component, UserRegistry *userRegistry, StorageBackend *storageBackend) : UserManager(component, userRegistry, storageBackend) {
 	m_component = component;
+	m_storageBackend = storageBackend;
     m_userRegistration = new SlackUserRegistration(component, this, storageBackend);
 }
 
@@ -40,6 +42,30 @@ SlackUserManager::~SlackUserManager() {
     delete m_userRegistration;
 }
 
+void SlackUserManager::reconnectUser(const std::string &user) {
+	UserInfo uinfo;
+	if (!m_storageBackend->getUser(user, uinfo)) {
+		LOG4CXX_ERROR(logger, "User " << user << " tried to reconnect, but he's not registered.");
+		return;
+	}
+
+	if (!uinfo.uin.empty()) {
+		LOG4CXX_INFO(logger, "Reconnecting user " << user);
+		Swift::Presence::ref response = Swift::Presence::create();
+		response->setTo(m_component->getJID());
+		response->setFrom(user + "@" + m_component->getJID().toString());
+		response->setType(Swift::Presence::Available);
+	}
+	else {
+		LOG4CXX_INFO(logger, "Cannot reconnect user " << user << ","
+			"because he does not have legacy network configured. "
+			"Continuing in Installation mode for this user until "
+			"he configures the legacy network.");
+		m_installations[user] = new SlackInstallation(m_component, m_storageBackend, uinfo);
+		m_installations[user]->onInstallationDone.connect(boost::bind(&SlackUserManager::reconnectUser, this, _1));
+	}
+}
+
 void SlackUserManager::sendVCard(unsigned int id, Swift::VCard::ref vcard) {
 
 }
@@ -49,4 +75,13 @@ UserRegistration *SlackUserManager::getUserRegistration() {
 	return m_userRegistration;
 }
 
+std::string SlackUserManager::handleOAuth2Code(const std::string &code, const std::string &state) {
+	return static_cast<SlackUserRegistration *>(m_userRegistration)->handleOAuth2Code(code, state);
+}
+
+std::string SlackUserManager::getOAuth2URL(const std::vector<std::string> &args) {
+	return static_cast<SlackUserRegistration *>(m_userRegistration)->createOAuth2URL(args);
+}
+
+
 }

spectrum/src/frontends/slack/SlackUserManager.h

@@ -39,6 +39,7 @@ class XMPPUserRegistration;
 class GatewayResponder;
 class AdHocManager;
 class SettingsAdHocCommandFactory;
+class SlackInstallation;
 
 class SlackUserManager : public UserManager {
 	public:
@@ -46,13 +47,21 @@ class SlackUserManager : public UserManager {
 
 		virtual ~SlackUserManager();
 
+		void reconnectUser(const std::string &user);
+
 		virtual void sendVCard(unsigned int id, Swift::VCard::ref vcard);
 
 		UserRegistration *getUserRegistration();
 
+		std::string handleOAuth2Code(const std::string &code, const std::string &state);
+
+		std::string getOAuth2URL(const std::vector<std::string> &args);
+
 	private:
 		Component *m_component;
 		UserRegistration *m_userRegistration;
+		StorageBackend *m_storageBackend;
+		std::map<std::string, SlackInstallation *> m_installations;
 };
 
 }

spectrum/src/frontends/slack/SlackUserRegistration.cpp

@@ -30,6 +30,11 @@
 #include "transport/Logging.h"
 #include "transport/Buddy.h"
 #include "transport/Config.h"
+#include "transport/OAuth2.h"
+#include "transport/Util.h"
+#include "transport/HTTPRequest.h"
+
+#include "rapidjson/document.h"
 
 #include <boost/shared_ptr.hpp>
 #include <boost/thread.hpp>
@@ -49,9 +54,97 @@ SlackUserRegistration::SlackUserRegistration(Component *component, UserManager *
 	m_config = m_component->getConfig();
 	m_storageBackend = storageBackend;
 	m_userManager = userManager;
+
 }
 
 SlackUserRegistration::~SlackUserRegistration(){
+	
+}
+
+std::string SlackUserRegistration::createOAuth2URL(const std::vector<std::string> &args) {
+	std::string redirect_url = "http://slack.spectrum.im/auth/" + CONFIG_STRING(m_config, "service.jid");
+	OAuth2 *oauth2 = new OAuth2(CONFIG_STRING_DEFAULTED(m_config, "service.client_id",""),
+						  CONFIG_STRING_DEFAULTED(m_config, "service.client_secret",""),
+						  "https://slack.com/oauth/authorize",
+						  "https://slack.com/api/oauth.access",
+						  redirect_url,
+						  "channels:read channels:write team:read im:read im:write chat:write:bot");
+	std::string url = oauth2->generateAuthURL();
+
+	m_auths[oauth2->getState()] = oauth2;
+	m_authsData[oauth2->getState()] = args;
+
+	return url;
+}
+
+std::string SlackUserRegistration::getTeamDomain(const std::string &token) {
+	std::string url = "https://slack.com/api/team.info?token=" + Util::urlencode(token);
+
+	rapidjson::Document resp;
+	HTTPRequest req(HTTPRequest::Get, url);
+	if (!req.execute(resp)) {
+		LOG4CXX_ERROR(logger, req.getError());
+		return "";
+	}
+
+	rapidjson::Value &team = resp["team"];
+	if (!team.IsObject()) {
+		LOG4CXX_ERROR(logger, "No 'team' object in the reply.");
+		return "";
+	}
+
+	rapidjson::Value &domain = team["domain"];
+	if (!domain.IsString()) {
+		LOG4CXX_ERROR(logger, "No 'domain' string in the reply.");
+		return "";
+	}
+
+	return domain.GetString();
+}
+
+std::string SlackUserRegistration::handleOAuth2Code(const std::string &code, const std::string &state) {
+	OAuth2 *oauth2 = NULL;
+	std::vector<std::string> data;
+	if (m_auths.find(state) != m_auths.end()) {
+		oauth2 = m_auths[state];
+		data = m_authsData[state];
+	}
+	else {
+		return "Received state code '" + state + "' not found in state codes list.";
+	}
+
+	std::string token;
+	std::string error = oauth2->requestToken(code, token);
+	if (!error.empty())  {
+		return error;
+	}
+
+	UserInfo user;
+	user.jid = getTeamDomain(token);
+	user.uin = "";
+	user.password = "";
+	user.language = "en";
+	user.encoding = token; // Use encoding as a token handler... it's BAD, but easy...
+	user.vip = 0;
+	user.id = 0;
+	registerUser(user);
+
+	m_storageBackend->getUser(user.jid, user);
+
+	std::string value = data[2];
+	int type = (int) TYPE_STRING;
+	m_storageBackend->getUserSetting(user.id, "bot_token", type, value);
+
+	LOG4CXX_INFO(logger, "Registered Slack user " << user.jid);
+
+	m_auths.erase(state);
+	delete oauth2;
+
+	m_authsData.erase(state);
+
+	m_component->getFrontend()->reconnectUser(user.jid);
+
+	return "";
 }
 
 bool SlackUserRegistration::doUserRegistration(const UserInfo &row) {

spectrum/src/frontends/slack/SlackUserRegistration.h

@@ -31,6 +31,7 @@ class Component;
 class StorageBackend;
 class UserManager;
 class Config;
+class OAuth2;
 
 class SlackUserRegistration : public UserRegistration {
 	public:
@@ -38,6 +39,12 @@ class SlackUserRegistration : public UserRegistration {
 
 		~SlackUserRegistration();
 
+		std::string createOAuth2URL(const std::vector<std::string> &args);
+
+		std::string getTeamDomain(const std::string &token);
+
+		std::string handleOAuth2Code(const std::string &code, const std::string &state);
+
 		virtual bool doUserRegistration(const UserInfo &userInfo);
 
 		virtual bool doUserUnregistration(const UserInfo &userInfo);
@@ -47,6 +54,8 @@ class SlackUserRegistration : public UserRegistration {
 		StorageBackend *m_storageBackend;
 		UserManager *m_userManager;
 		Config *m_config;
+		std::map<std::string, OAuth2 *> m_auths;
+		std::map<std::string, std::vector<std::string> > m_authsData;
 
 };
 

src/AdminInterface.cpp

@@ -313,6 +313,18 @@ void AdminInterface::handleQuery(Swift::Message::ref message) {
 			message->setBody("Bad argument count. See 'help'.");
 		}
 	}
+	else if (message->getBody().find("get_oauth2_url ") == 0) {
+		std::string body = message->getBody();
+		std::vector<std::string> args;
+		boost::split(args, body, boost::is_any_of(" "));
+		if (args.size() == 3) {
+			std::string url = m_component->getFrontend()->getOAuth2URL(args);
+			message->setBody(url);
+		}
+		else {
+			message->setBody("Bad argument count. See 'help'.");
+		}
+	}
 	else if (message->getBody().find("help") == 0) {
 		std::string help;
 		help += "General:\n";

src/Config.cpp

@@ -103,6 +103,7 @@ bool Config::load(std::istream &ifs, boost::program_options::options_description
 		("service.jid_escaping", value<bool>()->default_value(true), "")
 		("service.vip_only", value<bool>()->default_value(false), "")
 		("service.vip_message", value<std::string>()->default_value(""), "")
+		("service.reconnect_all_users", value<bool>()->default_value(false), "")
 		("vhosts.vhost", value<std::vector<std::string> >()->multitoken(), "")
 		("identity.name", value<std::string>()->default_value("Spectrum 2 Transport"), "Name showed in service discovery.")
 		("identity.category", value<std::string>()->default_value("gateway"), "Disco#info identity category. 'gateway' by default.")

src/HTTPRequest.cpp

@@ -4,7 +4,20 @@ namespace Transport {
 
 DEFINE_LOGGER(logger, "HTTPRequest")
 
-HTTPRequest::HTTPRequest() : curlhandle(NULL) {
+HTTPRequest::HTTPRequest(ThreadPool *tp, Type type, const std::string &url, Callback callback) {
+	m_type = type;
+	m_url = url;
+	m_tp = tp;
+	m_callback = callback;
+
+	init();
+}
+
+HTTPRequest::HTTPRequest(Type type, const std::string &url) {
+	m_type = type;
+	m_url = url;
+	m_tp = NULL;
+
 	init();
 }
 
@@ -60,7 +73,7 @@ bool HTTPRequest::GET(std::string url, 	std::string &data) {
 			
 		/* Set http request and url */
 		curl_easy_setopt(curlhandle, CURLOPT_HTTPGET, 1);
-		curl_easy_setopt(curlhandle, CURLOPT_VERBOSE, 1);
+		curl_easy_setopt(curlhandle, CURLOPT_VERBOSE, 0);
 		curl_easy_setopt(curlhandle, CURLOPT_URL, url.c_str());
 		
 		/* Send http request and return status*/
@@ -76,18 +89,50 @@ bool HTTPRequest::GET(std::string url, 	std::string &data) {
 }
 
 bool HTTPRequest::GET(std::string url, rapidjson::Document &json) {
-	std::string data;
-	if (!GET(url, data)) {
+	if (!GET(url, m_data)) {
 		return false;
 	}
 
-	if(json.Parse<0>(data.c_str()).HasParseError()) {
-		LOG4CXX_ERROR(logger, "Error while parsing JSON")
-        LOG4CXX_ERROR(logger, data)
+	if(json.Parse<0>(m_data.c_str()).HasParseError()) {
+		LOG4CXX_ERROR(logger, "Error while parsing JSON");
+        LOG4CXX_ERROR(logger, m_data);
+		strcpy(curl_errorbuffer, "Error while parsing JSON");
+		return false;
+	}
+
+	return true;
+}
+
+void HTTPRequest::run() {
+	switch (m_type) {
+		case Get:
+			m_ok = GET(m_url, m_json);
+			break;
+	}
+}
+
+void HTTPRequest::finalize() {
+	m_callback(this, m_ok, m_json, m_data);
+	onRequestFinished();
+}
+
+bool HTTPRequest::execute() {
+	if (!m_tp) {
 		return false;
 	}
 
+	m_tp->runAsThread(this);
 	return true;
 }
 
+bool HTTPRequest::execute(rapidjson::Document &json) {
+	switch (m_type) {
+		case Get:
+			m_ok = GET(m_url, json);
+			break;
+	}
+
+	return m_ok;
+}
+
 }

src/HTTPRequestQueue.cpp

@@ -0,0 +1,42 @@
+#include "transport/HTTPRequestQueue.h"
+#include "transport/HTTPRequest.h"
+
+namespace Transport {
+
+DEFINE_LOGGER(logger, "HTTPRequestQueue")
+
+HTTPRequestQueue::HTTPRequestQueue(int delay) {
+	m_delay = delay;
+	m_processing = false;
+}
+
+HTTPRequestQueue::~HTTPRequestQueue() {
+	
+}
+
+void HTTPRequestQueue::sendNextRequest() {
+	if (m_queue.empty()) {
+		m_processing = false;
+		return;
+	}
+
+	if (m_processing) {
+		return;
+	}
+
+	HTTPRequest *req = m_queue.front();
+	m_queue.pop();
+	req->onRequestFinished.connect(boost::bind(&HTTPRequestQueue::sendNextRequest, this));
+	req->execute();
+}
+
+void HTTPRequestQueue::queueRequest(HTTPRequest *req) {
+	m_queue.push(req);
+
+	if (!m_processing) {
+		sendNextRequest();
+	}
+}
+
+
+}

src/MySQLBackend.cpp

@@ -301,6 +301,7 @@ void MySQLBackend::disconnect() {
 	delete m_getBuddySetting;
 	delete m_setUserOnline;
 	delete m_getOnlineUsers;
+	delete m_getUsers;
 	mysql_close(&m_conn);
 }
 
@@ -348,6 +349,7 @@ bool MySQLBackend::connect() {
 
 	m_setUserOnline = new Statement(&m_conn, "bi", "UPDATE " + m_prefix + "users SET online=?, last_login=NOW()  WHERE id=?");
 	m_getOnlineUsers = new Statement(&m_conn, "|s", "SELECT jid FROM " + m_prefix + "users WHERE online=1");
+	m_getUsers = new Statement(&m_conn, "|s", "SELECT jid FROM " + m_prefix + "users");
 
 	return true;
 }
@@ -482,6 +484,20 @@ bool MySQLBackend::getOnlineUsers(std::vector<std::string> &users) {
 	return true;
 }
 
+bool MySQLBackend::getUsers(std::vector<std::string> &users) {
+	EXEC(m_getUsers, getUsers(users));
+	if (!exec_ok)
+		return false;
+
+	std::string jid;
+	while (m_getUsers->fetch() == 0) {
+		*m_getUsers >> jid;
+		users.push_back(jid);
+	}
+
+	return true;
+}
+
 long MySQLBackend::addBuddy(long userId, const BuddyInfo &buddyInfo) {
 // 	"INSERT INTO " + m_prefix + "buddies (user_id, uin, subscription, groups, nickname, flags) VALUES (?, ?, ?, ?, ?, ?)"
 	std::string groups = StorageBackend::serializeGroups(buddyInfo.groups);

src/OAuth2.cpp

@@ -71,12 +71,7 @@ std::string OAuth2::generateAuthURL() {
 	return url;
 }
 
-std::string OAuth2::handleOAuth2Code(const std::string &code, const std::string &state) {
-	if (m_state != state) {
-		std::string error = "Received state code '" + state + "' does not sent state code '" + m_state + "'";
-		return error;
-	}
-
+std::string OAuth2::requestToken(const std::string &code, std::string &token) {
 	std::string url = m_tokenURL + "?";
 	url += "client_id=" + Util::urlencode(m_clientId);
 	url += "&client_secret=" + Util::urlencode(m_clientSecret);
@@ -86,12 +81,18 @@ std::string OAuth2::handleOAuth2Code(const std::string &code, const std::string
 		url += "&redirect_uri=" + Util::urlencode(m_redirectURL);