src/Server/client.cpp

   1 // Baulk - Information Server - Client
   2 //
   3 // Baulk - Copyright (C) 2008 - Jacob Alexander
   4 //
   5 //  Baulk is free software; you can redistribute it and/or modify
   6 //  it under the terms of the GNU General Public License as published by
   7 //  the Free Software Foundation; either version 2 of the License, or
   8 //  any later version, including version 3 of the License.
   9 //
  10 //  Baulk is distributed in the hope that it will be useful,
  11 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 //  GNU General Public License for more details.
  14 //
  15 //  You should have received a copy of the GNU General Public License
  16 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 #include "client.h"
  19
  20 // Constructor ************************************************************************************
  21 InformationClient::InformationClient( QString call, bool informOnClose, QObject *parent ) : QObject( parent ) {
  22         currentId = 0; // Default Id;
  23         serverName = call;
  24         socket = new QLocalSocket( this );
  25
  26         informDaemonOnClose = informOnClose;
  27
  28         connect( socket, SIGNAL( readyRead() ), this, SLOT( incomingData() ) );
  29 }
  30
  31 // Destructor *************************************************************************************
  32 InformationClient::~InformationClient() {
  33         // Remove Client From Server List
  34         if ( informDaemonOnClose ) {
  35                 Packet removePacket(    Packet::infoToId( 0, 0 ),
  36                                         Packet::infoToId( 0, currentId ),
  37                                         QStringList() << "RemoveId",
  38                                         QStringList() << "True");
  39                 outgoingData( removePacket.packet() );
  40 #ifdef Q_OS_WIN32
  41                 // Since Windows cuts corners, I have to force it to keep the
  42                 //  client open until the very end
  43                 qCritical("Client Closing");
  44 #endif
  45         }
  46 }
  47
  48 void InformationClient::clientRequest() {
  49         QStringList flags = incomingPacket->dataFlags();
  50         QStringList data = incomingPacket->data();
  51
  52         for ( int c = 0; c < flags.count(); ++c ) {
  53                 if ( flags[c] == "NewId" ) {
  54                         int newIdnum = data[c].toInt();
  55                         if ( newIdnum != 0 ) // toInt defaults to 0 on failure, and 0 will never be an assigned Id
  56                                 newId( newIdnum );
  57                         else
  58                                 qCritical( QString("%1 || Failure to get ID").arg( errorName() ).toUtf8() );
  59                 }
  60         }
  61 }
  62
  63 void InformationClient::connectToServer() {
  64         qDebug("READ!");
  65 }
  66
  67 // All Incoming Data goes through here ************************************************************
  68 void InformationClient::incomingData() {
  69         QDataStream in( socket );
  70         in.setVersion( QDataStream::Qt_4_4 );
  71
  72         QString data;
  73         in >> data;
  74         incomingPacket = new Packet( data, this );
  75
  76         // Only Accept Packets Assigning Id's initially
  77         if ( currentId == 0 ) {
  78                 // Only accept Packets from Server
  79                 if ( Packet::idToInfo( incomingPacket->senderId() ).windowId == 0 ) {
  80                         clientRequest();
  81                         return;
  82                 }
  83         }
  84         else {
  85         }
  86
  87         // Invalid Packet
  88         qDebug( QString("%1\n\tInvalid Packet!\n\t\t%2").arg( errorName() ).arg( data ).toUtf8() );
  89 }
  90
  91 void InformationClient::newId( int newIdnum ) {
  92         currentId = newIdnum;
  93
  94         // Allows for the parent program to determine when an ID has been assigned
  95         emit idChanged();
  96
  97         qDebug( QString("%1\n\tNew Id || %2").arg( errorName() ).arg( currentId ).toUtf8() );
  98 }
  99
 100 // All Outgoing Data goes through here ************************************************************
 101 void InformationClient::outgoingData( QString data ) {
 102         //if ( !socket->isValid() ) {
 103                 socket->abort();
 104                 socket->connectToServer( serverName );
 105         //}
 106
 107         QByteArray block;
 108         QDataStream out( &block, QIODevice::WriteOnly );
 109         out.setVersion( QDataStream::Qt_4_4 );
 110
 111         out << data;
 112
 113         socket->write( block );
 114         socket->flush();
 115 }
 116
 117 void InformationClient::requestId() {
 118         Packet requestPacket(   Packet::infoToId( 0, 0 ),
 119                                 Packet::infoToId( 0, 0 ),
 120                                 QStringList() << "RequestId",
 121                                 QStringList() << "True" );
 122
 123         outgoingData( requestPacket.packet() );
 124 }
 125
 126 // Request startNewHostInstance signal on server **************************************************
 127 void InformationClient::requestStartNewHostInstance() {
 128         Packet requestPacket(   Packet::infoToId( 0, 0 ),
 129                                 Packet::infoToId( 0, id() ),
 130                                 QStringList() << "RequestStartNewHostInstance",
 131                                 QStringList() << "True" );
 132
 133         outgoingData( requestPacket.packet() );
 134 }
 135