Method ProcessDownloadRequestMessage

neo/framework/async/AsyncServer.cpp:2653–2791

=============== idAsyncServer::ProcessDownloadRequestMessage =============== */

===============
*/
void idAsyncServer::ProcessDownloadRequestMessage( const netadr_t from, const idBitMsg &msg ) {
	int			challenge, clientId, iclient, numPaks, i;
	int			dlPakChecksum;
	int			dlSize[ MAX_PURE_PAKS ];	// sizes
	idStrList	pakNames;					// relative path
	idStrList	pakURLs;					// game URLs
	char		pakbuf[ MAX_STRING_CHARS ];
	idStr		paklist;
	byte		msgBuf[ MAX_MESSAGE_SIZE ];
	byte		tmpBuf[ MAX_MESSAGE_SIZE ];
	idBitMsg	outMsg, tmpMsg;
	int			dlRequest;
	int			voidSlots = 0;				// to count and verbose the right number of paks requested for downloads

	challenge = msg.ReadInt();
	clientId = msg.ReadShort();
	dlRequest = msg.ReadInt();

	if ( ( iclient = ValidateChallenge( from, challenge, clientId ) ) == -1 ) {
		return;
	}

	if ( challenges[ iclient ].authState != CDK_PUREWAIT ) {
		common->DPrintf( "client %s: got download request message, not in CDK_PUREWAIT\n", Sys_NetAdrToString( from ) );
		return;
	}

	pakNames.Append( pakbuf );
	numPaks = 1;

	// read the checksums, build path names and pass that to the game code
	dlPakChecksum = msg.ReadInt();
	while ( dlPakChecksum ) {
		if ( !( dlSize[ numPaks ] = fileSystem->ValidateDownloadPakForChecksum( dlPakChecksum, pakbuf ) ) ) {
			// we pass an empty token to the game so our list doesn't get offset
			common->Warning( "client requested an unknown pak 0x%x", dlPakChecksum );
			pakbuf[ 0 ] = '\0';
			voidSlots++;
		}
		pakNames.Append( pakbuf );
		numPaks++;
		dlPakChecksum = msg.ReadInt();
	}

	for ( i = 0; i < pakNames.Num(); i++ ) {
		if ( i > 0 ) {
			paklist += ";";
		}
		paklist += pakNames[ i ].c_str();
	}

	// read the message and pass it to the game code
	common->DPrintf( "got download request for %d paks - %s\n", numPaks - voidSlots, paklist.c_str() );

	outMsg.Init( msgBuf, sizeof( msgBuf ) );
	outMsg.WriteShort( CONNECTIONLESS_MESSAGE_ID );
	outMsg.WriteString( "downloadInfo" );
	outMsg.WriteInt( dlRequest );