first version of WA that connects

4 files changed, 291 insertions, 32 deletions

diff --git a/protocols/WhatsAppWeb/src/proto.cpp b/protocols/WhatsAppWeb/src/proto.cpp
index a29e50d06f..3f2f903f0a 100644
--- a/protocols/WhatsAppWeb/src/proto.cpp
+++ b/protocols/WhatsAppWeb/src/proto.cpp
@@ -19,7 +19,8 @@ struct SearchParam
 
 WhatsAppProto::WhatsAppProto(const char *proto_name, const wchar_t *username)
 	: PROTO<WhatsAppProto>(proto_name, username),
-	m_tszDefaultGroup(getWStringA(DBKEY_DEF_GROUP))
+	m_tszDefaultGroup(getWStringA(DBKEY_DEF_GROUP)),
+	m_arPacketQueue(10, NumericKeySortT)
 {
 	db_set_resident(m_szModuleName, "StatusMsg");
 
@@ -135,13 +136,13 @@ int WhatsAppProto::SetStatus(int new_status)
 		m_iStatus = m_iDesiredStatus = ID_STATUS_OFFLINE;
 		ProtoBroadcastAck(NULL, ACKTYPE_STATUS, ACKRESULT_SUCCESS, (HANDLE)oldStatus, m_iStatus);
 	}
-	else if (m_pConn == nullptr && !IsStatusConnecting(m_iStatus)) {
+	else if (m_hServerConn == nullptr && !IsStatusConnecting(m_iStatus)) {
 		m_iStatus = ID_STATUS_CONNECTING;
 		ProtoBroadcastAck(NULL, ACKTYPE_STATUS, ACKRESULT_SUCCESS, (HANDLE)oldStatus, m_iStatus);
 
 		ForkThread(&WhatsAppProto::ServerThread);
 	}
-	else if (m_pConn != nullptr) {
+	else if (m_hServerConn != nullptr) {
 		if (m_iDesiredStatus == ID_STATUS_ONLINE) {
 			// m_pConn->sendAvailableForChat();
 			m_iStatus = ID_STATUS_ONLINE;
diff --git a/protocols/WhatsAppWeb/src/proto.h b/protocols/WhatsAppWeb/src/proto.h
index 610313ab0e..ce09908fcd 100644
--- a/protocols/WhatsAppWeb/src/proto.h
+++ b/protocols/WhatsAppWeb/src/proto.h
@@ -22,23 +22,52 @@ struct WAChatInfo
 	MCONTACT hContact;
 };
 
-struct WAConnection : public MZeroedObject
+class WhatsAppProto;
+typedef void (WhatsAppProto:: *WA_PKT_HANDLER)(const JSONNode &node);
+
+struct WARequest
 {
-	EVP_PKEY *m_pKeys; // private & public keys
+	int pktId;
+	time_t issued;
+	WA_PKT_HANDLER pHandler;
 };
 
 class WhatsAppProto : public PROTO<WhatsAppProto>
 {
+	bool m_bTerminated, m_bOnline;
 	ptrW m_tszDefaultGroup;
 
-	CMStringA m_szJid, m_szClientId;
+	CMStringA m_szJid, m_szClientId, m_szClientToken;
 	CMStringW m_tszAvatarFolder;
 
-	WAConnection *m_pConn;
+	EVP_PKEY *m_pKeys; // private & public keys
+
+	bool ShowQrCode(const CMStringA &ref);
+
+	/// Network ////////////////////////////////////////////////////////////////////////////
+
+	int m_iPktNumber;
+	time_t m_iLoginTime;
+	HNETLIBCONN m_hServerConn;
 
-	bool ShowQrCode(void);
+	mir_cs m_csPacketQueue;
+	OBJLIST<WARequest> m_arPacketQueue;
 
-	/// Avatars //////////////////////////////////////////////////////////////////////////
+	int WSSend(const CMStringA &str, WA_PKT_HANDLER = nullptr);
+
+	void OnLoggedIn(void);
+	void OnLoggedOut(void);
+	void ProcessPacket(const JSONNode &node);
+	void RestoreSession(void);
+	bool ServerThreadWorker(void);
+	void StartSession(void);
+	void ShutdownSession(void);
+
+	/// Request handlers ///////////////////////////////////////////////////////////////////
+
+	void OnStartSession(const JSONNode &node);
+
+	/// Avatars ////////////////////////////////////////////////////////////////////////////
 	CMStringW GetAvatarFileName(MCONTACT hContact);
 
 	INT_PTR __cdecl GetAvatarInfo(WPARAM, LPARAM);
@@ -51,7 +80,7 @@ public:
 	~WhatsAppProto();
 
 	inline bool isOnline() const
-	{	return false;
+	{	return m_bOnline;
 	}
 
 	inline bool isOffline() const
@@ -62,7 +91,7 @@ public:
 	{	return (m_iStatus == ID_STATUS_INVISIBLE);
 	}
 
-	// PROTO_INTERFACE ///////////////////////////////////////////////////////////////////
+	// PROTO_INTERFACE /////////////////////////////////////////////////////////////////////
 
 	MCONTACT AddToList(int flags, PROTOSEARCHRESULT *psr) override;
 	INT_PTR  GetCaps(int type, MCONTACT hContact = NULL) override;
@@ -71,31 +100,23 @@ public:
 	int      SetStatus(int iNewStatus) override;
 	int      UserIsTyping(MCONTACT hContact, int type) override;
 
-	// Services //////////////////////////////////////////////////////////////////////////
+	// Services ////////////////////////////////////////////////////////////////////////////
 
 	INT_PTR __cdecl SvcCreateAccMgrUI(WPARAM, LPARAM);
 
-	// Events ////////////////////////////////////////////////////////////////////////////
+	// Events //////////////////////////////////////////////////////////////////////////////
 
 	int __cdecl OnOptionsInit(WPARAM, LPARAM);
 	int __cdecl OnUserInfo(WPARAM, LPARAM);
 	int __cdecl OnBuildStatusMenu(WPARAM, LPARAM);
 
-	// Worker Threads ////////////////////////////////////////////////////////////////////
-
-	void __cdecl stayConnectedLoop(void*);
-	void __cdecl sentinelLoop(void*);
-
-	// Processing Threads ////////////////////////////////////////////////////////////////
+	// Processing Threads //////////////////////////////////////////////////////////////////
 
-	void __cdecl ProcessBuddyList(void*);
 	void __cdecl SearchAckThread(void*);
 	void __cdecl ServerThread(void*);
 
-	// Contacts handling /////////////////////////////////////////////////////////////////
+	// Contacts handling ///////////////////////////////////////////////////////////////////
 
-	void     SetAllContactStatuses(int status, bool reset_client = false);
-	void     UpdateStatusMsg(MCONTACT hContact);
 	void     RequestFriendship(MCONTACT hContact);
 };
 
diff --git a/protocols/WhatsAppWeb/src/server.cpp b/protocols/WhatsAppWeb/src/server.cpp
index 8b94cb675c..8e9419ad47 100644
--- a/protocols/WhatsAppWeb/src/server.cpp
+++ b/protocols/WhatsAppWeb/src/server.cpp
@@ -97,7 +97,7 @@ static int random_func(uint8_t *pData, size_t size, void *)
 	return 0;
 }
 
-bool WhatsAppProto::ShowQrCode()
+bool WhatsAppProto::ShowQrCode(const CMStringA &ref)
 {
 	CMStringA szPubKey(getMStringA(DBKEY_PUBKEY));
 	if (szPubKey.IsEmpty()) {
@@ -135,17 +135,253 @@ bool WhatsAppProto::ShowQrCode()
 	return true;
 }
 
-/////////////////////////////////////////////////////////////////////////////////////////
+//////////////////////////////////////////////////////////////////////////////////////
+// sends a piece of JSON to a server via a websocket, masked
+
+int WhatsAppProto::WSSend(const CMStringA &str, WA_PKT_HANDLER pHandler)
+{
+	if (m_hServerConn == nullptr)
+		return -1;
+
+	int pktId = ++m_iPktNumber;
+
+	CMStringA buf;
+	buf.Format("%d.--%d,", (int)m_iLoginTime, pktId);
+	if (!str.IsEmpty()) {
+		buf.AppendChar(',');
+		buf += str;
+	}
+
+	if (pHandler != nullptr) {
+		auto *pReq = new WARequest;
+		pReq->issued = time(0);
+		pReq->pHandler = pHandler;
+		pReq->pktId = pktId;
+
+		mir_cslock lck(m_csPacketQueue);
+		m_arPacketQueue.insert(pReq);
+	}
+
+	WebSocket_Send(m_hServerConn, buf.c_str(), buf.GetLength());
+	return pktId;
+}
+
+void WhatsAppProto::OnLoggedIn()
+{
+	debugLogA("CDiscordProto::OnLoggedIn");
+	m_bOnline = true;
+	// SetServerStatus(m_iDesiredStatus);
+}
+
+void WhatsAppProto::OnLoggedOut(void)
+{
+	debugLogA("CDiscordProto::OnLoggedOut");
+	m_bOnline = false;
+	m_bTerminated = true;
+	m_iPktNumber = 0;
+
+	ProtoBroadcastAck(0, ACKTYPE_STATUS, ACKRESULT_SUCCESS, (HANDLE)m_iStatus, ID_STATUS_OFFLINE);
+	m_iStatus = m_iDesiredStatus = ID_STATUS_OFFLINE;
+
+	setAllContactStatuses(ID_STATUS_OFFLINE, false);
+}
+
+void WhatsAppProto::RestoreSession()
+{
+}
+
+void WhatsAppProto::ShutdownSession()
+{
+	if (m_bTerminated)
+		return;
+
+	debugLogA("WhatsAppProto::ShutdownSession");
+
+	// shutdown all resources
+	if (m_hServerConn)
+		Netlib_Shutdown(m_hServerConn);
+
+	OnLoggedOut();
+}
+
+void WhatsAppProto::StartSession()
+{
+	WORD v[4];
+	Miranda_GetFileVersion(&v);
+
+	CMStringA payload(FORMAT, "[\"admin\",\"init\",[%d,%d,%d],[\"Windows\",\"Miranda\",\"10\"],%s,true]", 
+		v[1], v[2], v[3], m_szClientId.c_str());
+	WSSend(payload, &WhatsAppProto::OnStartSession);
+}
+
+void WhatsAppProto::OnStartSession(const JSONNode &root)
+{
+	int status = root["status"].as_int();
+	if (status != 200) {
+		debugLogA("Session start failed with error %d", status);
+		ShutdownSession();
+		return;
+	}
+
+	CMStringA ref = root["ref"].as_mstring();
+	ShowQrCode(ref);
+}
+
+//////////////////////////////////////////////////////////////////////////////////////
+// gateway worker thread
 
 void WhatsAppProto::ServerThread(void *)
 {
-	m_pConn = new WAConnection();
+	while (ServerThreadWorker())
+		;
+	ShutdownSession();
+}
+
+bool WhatsAppProto::ServerThreadWorker()
+{
+	NETLIBHTTPHEADER hdrs[] =
+	{
+		{ "Origin", "https://web.whatsapp.com" },
+		{ "Sec-WebSocket-Key", "k/hwJLznKpk3p2hxyYGzWA==" },
+		{ 0, 0 }
+	};
+
+	m_hServerConn = WebSocket_Connect(m_hNetlibUser, "web.whatsapp.com/ws", hdrs);
+	if (m_hServerConn == nullptr) {
+		debugLogA("Server connection failed, exiting");
+		return false;
+	}
+
+	debugLogA("Server connection succeeded");
+
+	m_szClientToken = getMStringA(DBKEY_CLIENT_SECRET);
+	if (m_szClientToken.IsEmpty())
+		StartSession();
+	else
+		RestoreSession();
+
+	bool bExit = false;
+	int offset = 0;
+	MBinBuffer netbuf;
+
+	while (!bExit) {
+		if (m_bTerminated)
+			break;
 
-	ptrA szClientToken(getStringA(DBKEY_CLIENT_SECRET));
-	if (szClientToken == nullptr) {
-		if (!ShowQrCode()) {
-			delete m_pConn;
-			return;
+		unsigned char buf[2048];
+		int bufSize = Netlib_Recv(m_hServerConn, (char *)buf + offset, _countof(buf) - offset, MSG_NODUMP);
+		if (bufSize == 0) {
+			debugLogA("Gateway connection gracefully closed");
+			bExit = !m_bTerminated;
+			break;
+		}
+		if (bufSize < 0) {
+			debugLogA("Gateway connection error, exiting");
+			break;
+		}
+
+		WSHeader hdr;
+		if (!WebSocket_InitHeader(hdr, buf, bufSize)) {
+			offset += bufSize;
+			continue;
+		}
+		offset = 0;
+
+		debugLogA("Got packet: buffer = %d, opcode = %d, headerSize = %d, final = %d, masked = %d", bufSize, hdr.opCode, hdr.headerSize, hdr.bIsFinal, hdr.bIsMasked);
+
+		// we have some additional data, not only opcode
+		if ((size_t)bufSize > hdr.headerSize) {
+			size_t currPacketSize = bufSize - hdr.headerSize;
+			netbuf.append(buf, bufSize);
+			while (currPacketSize < hdr.payloadSize) {
+				int result = Netlib_Recv(m_hServerConn, (char *)buf, _countof(buf), MSG_NODUMP);
+				if (result == 0) {
+					debugLogA("Gateway connection gracefully closed");
+					bExit = !m_bTerminated;
+					break;
+				}
+				if (result < 0) {
+					debugLogA("Gateway connection error, exiting");
+					break;
+				}
+				currPacketSize += result;
+				netbuf.append(buf, result);
+			}
+		}
+
+		// read all payloads from the current buffer, one by one
+		size_t prevSize = 0;
+		while (true) {
+			switch (hdr.opCode) {
+			case 0: // text packet
+			case 1: // binary packet
+			case 2: // continuation
+				if (hdr.bIsFinal) {
+					// process a packet here
+					CMStringA szJson(netbuf.data() + hdr.headerSize, (int)hdr.payloadSize);
+					debugLogA("JSON received:\n%s", szJson.c_str());
+
+					int pos = szJson.Find(',');
+					if (pos != -1) {
+						CMStringA prefix = szJson.Left(pos);
+						szJson.Delete(0, pos);
+
+						JSONNode root = JSONNode::parse(szJson);
+						if (root) {
+							int sessId, pktId;
+							if (sscanf(szJson, "%d--.%d,", &sessId, &pktId) == 2) {
+								auto *pReq = m_arPacketQueue.find((WARequest *)&pktId);
+								if (pReq != nullptr) {
+									(this->*pReq->pHandler)(root);
+								}
+							}
+							else ProcessPacket(root);
+						}
+					}
+				}
+				break;
+
+			case 8: // close
+				debugLogA("server required to exit");
+				bExit = true; // simply reconnect, don't exit
+				break;
+
+			case 9: // ping
+				debugLogA("ping received");
+				Netlib_Send(m_hServerConn, (char *)buf + hdr.headerSize, bufSize - int(hdr.headerSize), 0);
+				break;
+			}
+
+			if (hdr.bIsFinal)
+				netbuf.remove(hdr.headerSize + hdr.payloadSize);
+
+			if (netbuf.length() == 0)
+				break;
+
+			// if we have not enough data for header, continue reading
+			if (!WebSocket_InitHeader(hdr, netbuf.data(), netbuf.length()))
+				break;
+
+			// if we have not enough data for data, continue reading
+			if (hdr.headerSize + hdr.payloadSize > netbuf.length())
+				break;
+
+			debugLogA("Got inner packet: buffer = %d, opcode = %d, headerSize = %d, payloadSize = %d, final = %d, masked = %d", netbuf.length(), hdr.opCode, hdr.headerSize, hdr.payloadSize, hdr.bIsFinal, hdr.bIsMasked);
+			if (prevSize == netbuf.length()) {
+				netbuf.remove(prevSize);
+				debugLogA("dropping current packet, exiting");
+				break;
+			}
+
+			prevSize = netbuf.length();
 		}
 	}
-}
\ No newline at end of file
+
+	Netlib_CloseHandle(m_hServerConn);
+	m_hServerConn = nullptr;
+	return bExit;
+}
+
+void WhatsAppProto::ProcessPacket(const JSONNode &root)
+{
+}
diff --git a/protocols/WhatsAppWeb/src/stdafx.h b/protocols/WhatsAppWeb/src/stdafx.h
index ee6c6a1156..171e384674 100644
--- a/protocols/WhatsAppWeb/src/stdafx.h
+++ b/protocols/WhatsAppWeb/src/stdafx.h
@@ -21,6 +21,7 @@ Copyright © 2019 George Hazan
 #include <m_history.h>
 #include <m_imgsrvc.h>
 #include <m_ignore.h>
+#include <m_json.h>
 #include <m_langpack.h>
 #include <m_message.h>
 #include <m_netlib.h>