[Hand Tour new Project history] 9th day-websocket Baotou: string 129, Binary 130__web

Package Unpack function sharing

int Websocketprotocol::trydeframeincomingpacket (pushframework::D atabuffer& buffer, pushframework::i  ncomingpacket*& Ppacket, int& serviceid, unsigned int&, nextractedbytes connectioncontext*) {if (buffer.

	Getdatasize () = = 0) return protocol::eincompletepacket;

	websocketconnectioncontext* pcxt = (websocketconnectioncontext*) pContext; if (pcxt->getstage () = = Websocketconnectioncontext::handshakestage) {websockethandshakemessage* pMessage = new Webs Ockethandshakemessage (buffer. GetBuffer (), buffer.
		Getdatasize ());
		Serviceid = 0; nextractedbytes = buffer.
		Getdatasize ();
		Ppacket = PMessage;
	return protocol::success;
    }//in The other cases, we should expect a data Message:int = 6; if (buffer).

    Getdatasize () < nminexpectedsize) return protocol::eincompletepacket;
	BYTE payloadflags = buffer.getat (0);
	if ((payloadflags >> 7) = = 0) {return protocol::eundefinedfailure; }/* IF (Payloadflags!= 129) return protocol::eundefinedfailure;
    */BYTE Basicsize = Buffer.getat (1) & 0x7F;
    unsigned __int64 payloadsize;

    int masksoffset;
        if (basicsize <=) {payloadsize = basicsize;
    Masksoffset = 2;
        else if (basicsize = = 126) {nminexpectedsize = 2; if (buffer).
        Getdatasize () < nminexpectedsize) return protocol::eincompletepacket; Payloadsize = Ntohs (* (u_short*) (buffer.
        GetBuffer () + 2));
    Masksoffset = 4;
        else if (basicsize = = 127) {nminexpectedsize = 8; if (buffer).
        Getdatasize () < nminexpectedsize) return protocol::eincompletepacket; Payloadsize = Ntohl (* (u_long*) (buffer.
        GetBuffer () + 2));
    Masksoffset = 10;

    else return protocol::eundefinedfailure;
    Nminexpectedsize + = Payloadsize; if (buffer). Getdatasize () < nminexpectedsize) return Protocol::eincompletepacKet	BYTE Len = 4;
    Length of the mask BYTE masks[4]; memcpy (masks, buffer.
	
    GetBuffer () + Masksoffset, 4);
    char* payload = new Char[payloadsize + 1]; memcpy (payload, buffer.
	
    GetBuffer () + Masksoffset + Len, payloadsize);
    For (unsigned __int64 i = 0; i < payloadsize; i++) {Payload[i] = (Payload[i] ^ masks[i%4]);

	} Payload[payloadsize] = ';
	websocketdatamessage* pMessage = new Websocketdatamessage (payload);
	Serviceid = 1;
	Nextractedbytes = nminexpectedsize;

	Ppacket = PMessage;
	Delete payload;
return protocol::success; int Websocketprotocol::frameoutgoingpacket (pushframework::outgoingpacket& packet, pushframework::D atabuffer & Buffer, unsigned int& nwrittenbytes, unsigned int size) {websocketmessage& message = (websocketmessage&amp

	;) packet; if (message. GetType () = = Websocketmessage::handshake) {websockethandshakemessage& handshake = (websockethandshakemessage

        &) message; String Strraw = handshake. SerializE ();

        if (Strraw.size () > Buffer.getremainingsize ()) return protocol::einsufficientbuffer; Buffer.
        Append ((char*) strraw.c_str (), strraw.size ());
        Nwrittenbytes = Strraw.size ();
	return protocol::success; } if (message. GetType () = = Websocketmessage::D atamessage) {websocketdatamessage& datamessage = (websocketdatamessage&) mess
        Age
		
		String strdata = Datamessage.getencodeddata ();		Stream stream;
		Binary write int nsize = Strdata.size ();
		if (size!= 0) {nsize = size;
		} unsigned __int64 payloadsize = nsize; /* int expectedsize = payloadsize + 1;
		Statistic packet Length if (payloadsize <= && payloadsize <= 65535) expectedsize + = 1;
		else if (payloadsize > Payloadsize && <= 65535) Expectedsize + = 3;
		else Expectedsize = 9;
		if (Expectedsize > Buffer.getremainingsize ()) return protocol::einsufficientbuffer; * *//create the flags byte unsigned char payloadflags = 130;/Header: string 129, Binary 130 if (size = = 0) {payloadflags = 129; } if (size = = 0) {buffer.
		WriteByte (Payloadflags); else {stream.
		Write (Payloadflags);			int expectedsize = 1;
			The length of the statistic packet is//create the long byte if (payloadsize <=) {unsigned char basicsize = payloadsize; if (size = = 0) {buffer.
			WriteByte (basicsize); else {stream.
			Write (basicsize);
		} expectedsize = 1; else if (/*payloadsize > &&*/payloadsize <= 65535)//by Byfei 2017/02/20 {unsigned char basics
			ize = 126;
			unsigned char len[2];
			Len[0] = (payloadsize >> 8) & 255;
			LEN[1] = (payloadsize) & 255; if (size = = 0) {buffer.
				WriteByte (basicsize); Buffer.
				WriteByte (Len[0]); Buffer.
			WriteByte (len[1]); else {stream.
				Write (basicsize); Stream.
				Write (Len[0]); Stream.
			Write (len[1]);
		} expectedsize = 3;
			else {unsigned char basicsize = 127;
			Char Len[8]; Len[0] = (payloadsize >>) & 255;
			LEN[1] = (payloadsize >>) & 255;
			LEN[2] = (payloadsize >>) & 255;
			LEN[3] = (payloadsize >>) & 255;
			LEN[4] = (payloadsize >>) & 255;
			LEN[5] = (payloadsize >>) & 255;
			LEN[6] = (payloadsize >> 8) & 255;
			LEN[7] = (payloadsize) & 255; if (size = = 0) {buffer.
				WriteByte (basicsize); Buffer.
			Append (len, 8); else {stream.
				Write (basicsize); Stream.
			WriteBuffer (len, 8);
		} expectedsize = 9; }//buffer.
		Append ((char*) strdata.c_str (), size); if (size!= 0) {buffer.
			Append (Stream.getbuf (), expectedsize); Buffer.
		Append (Datamessage.getstream (). Getbuf (), nsize); else {buffer.
		Append ((char*) strdata.c_str (), nsize); } expectedsize = Payloadsize + expectedsize;
        The length of the statistic packet nwrittenbytes = expectedsize;
	return protocol::success; Return protocol::eundefinedfailure; }

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