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/*
* xfirelib - C++ Library for the xfire protocol.
* Copyright (C) 2006 by
* Beat Wolf <asraniel@fryx.ch> / http://gfire.sf.net
* Herbert Poul <herbert.poul@gmail.com> / http://goim.us
* http://xfirelib.sphene.net
*
* 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "stdafx.h"
#include <iostream>
#include <stdlib.h>
#include <string.h>
#include "xfirepacket.h"
#include "xdebug.h"
#include "socketexception.h"
using namespace std;
namespace xfirelib
{
XFirePacket::XFirePacket(PacketReader *reader)
{
this->reader = reader;
this->content = NULL;
}
XFirePacket::XFirePacket(XFirePacketContent *content)
{
this->content = content;
this->reader = NULL;
}
XFirePacket::~XFirePacket()
{
}
void XFirePacket::recvPacket(Socket *socket)
{
char buf[5];
if (socket == NULL) return;
int r = socket->recv(buf, 5);
int missingbytes = 5 - r;
if (missingbytes != 0) {
XERROR3("Returned only %d bytes try last %d bytes again ?!: \n", r, missingbytes);
r += socket->recv(&buf[r], missingbytes);
}
if (r != 5) {
XERROR2("Returned less than 5 ?!: %d\n", r);
throw SocketException("Connection Closed ?");
}
XDEBUG2("Read %d bytes...\n", r);
unsigned int len = ((unsigned char)buf[0]) + (((unsigned char)buf[1]) * 256);
int packetid = buf[2];
int numberOfAtts = (unsigned char)buf[4];
char* contentbuf = new char[len - 5];
XDEBUG2("calling socket->recv(contentbuf,%d)\n", len - 5);
int r2 = socket->recv(contentbuf, len - 5);
char* ncontentbuf = contentbuf + r2;
int nsize = len - 5 - r2;
int dummyi = 0;
//packet solang auslesen, bis fertig - dufte
while (nsize > 0) {
dummyi++;
XDEBUG2("nsize: %d\n", nsize);
r2 = socket->recv(ncontentbuf, nsize);
ncontentbuf = ncontentbuf + r2;
nsize -= r2;
XDEBUG5("packetid: %d numberOfAtts: %d length: %d Got: %d\n", (unsigned char)packetid, numberOfAtts, len - 5, len - 5 - nsize);
}
XDEBUG5("packetid: %d numberOfAtts: %d length: %d Got: %d\n", (unsigned char)packetid, numberOfAtts, len - 5, r2);
if (r2 < 1) return;
XFirePacketContent *contentClass = reader->getPacketContentClass((unsigned char)packetid);
if (contentClass == NULL) {
XERROR2("NO SUCH CONTENT PACKET (%d) :(\n", (unsigned char)packetid);
return;
}
XDEBUG(("Creating ContentClass Instance\n"));
content = contentClass->newPacket();
XDEBUG(("Parse Content\n"));
//statt r2 wird jetzt die komplette länge des packets genommen, also len-5 dufte
content->parseContent(contentbuf, len - 5, numberOfAtts);
}
void XFirePacket::sendPacket(Socket *socket)
{
int size = content->getPacketSize();
char *buf = (char*)malloc(size * sizeof(char));
XDEBUG3("Allocated %d characters (%d)\n", size, sizeof(char));
int rsize = content->getPacketContent(buf);
XDEBUG2("Real Size: %d\n", rsize);
int realsize = rsize + 5;
char *sendbuf = (char*)malloc(realsize * sizeof(char));
sendbuf[0] = realsize % 256;
sendbuf[1] = (int)realsize / 256;
sendbuf[2] = content->getPacketId();
XDEBUG2("Send Content Id: %d\n", content->getPacketId());
sendbuf[3] = 0;
sendbuf[4] = content->getPacketAttributeCount();
memcpy(sendbuf + 5, buf, rsize);
socket->send(sendbuf, realsize);
free(buf); free(sendbuf);
}
}
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