src/shell/networkhandler.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by David Cuadrado                                  *
   3  *   krawek@gmail.com                                                      *
   4  *                                                                         *
   5  *   This program 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  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program 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, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "networkhandler.h"
  22
  23 // Qt
  24 #include <QXmlStreamReader>
  25 #include <QXmlStreamWriter>
  26 #include <QTemporaryFile>
  27
  28 // DCore
  29 #include <dcore/debug.h>
  30
  31 // DGui
  32 #include <dgui/osd.h>
  33
  34 // YAMF
  35 #include <yamf/model/command/processor.h>
  36 #include <yamf/model/command/base.h>
  37
  38 // Dash
  39 #include "dash/project.h"
  40
  41 #include "dash/network/socket.h"
  42 #include "dash/network/filereceiver.h"
  43
  44 #include "dash/network/package/newproject.h"
  45 #include "dash/network/package/connect.h"
  46 #include "dash/network/package/listprojects.h"
  47 #include "dash/network/package/openproject.h"
  48
  49 #include "dash/network/parser/ackparser.h"
  50
  51 #include "dash/network/parser/projectlistparser.h"
  52 #include "dash/network/parser/projectparser.h"
  53
  54 #include "projectmanager.h"
  55
  56 #include "ui_displayprojects.h"
  57
  58 #include "comm/comm.h"
  59 #include "comm/chatwindow.h"
  60
  61 NetworkHandler::NetworkHandler(ProjectManager *manager, QObject *parent) : QObject(parent), m_manager(manager), m_socket(new Dash::Network::Socket), m_dispatcher(new Dash::Network::Package::Dispatcher), m_waitingResponse(false)
  62 {
  63         m_processor = new YAMF::Command::Processor(manager->project());
  64         m_socket->addObserver(this);
  65         m_receiver = new Dash::Network::FileReceiver;
  66         m_socket->addObserver(m_receiver);
  67
  68         m_comm = new Comm(this);
  69         addObserver(m_comm);
  70
  71         connect(m_receiver, SIGNAL(finished(const QString &)), this, SLOT(onReceiverFinished(const QString &)));
  72 }
  73
  74
  75 NetworkHandler::~NetworkHandler()
  76 {
  77         delete m_dispatcher;
  78         delete m_socket;
  79         delete m_receiver;
  80         delete m_comm;
  81 }
  82
  83 void NetworkHandler::connectToHost(const QString &host, quint16 port, const QString &login, const QString &password)
  84 {
  85         m_commands.clear();
  86
  87         m_socket->connectToHost(host, port);
  88         Dash::Network::Package::Connect cnx(login, password, 0);
  89         m_socket->send(cnx.toString().toLocal8Bit());
  90 }
  91
  92 void NetworkHandler::send(const QString &xml)
  93 {
  94         QString tosend;
  95         if( !m_sign.isEmpty() )
  96         {
  97                 QXmlStreamReader reader(xml);
  98                 QXmlStreamWriter writer(&tosend);
  99
 100                 bool isRoot = false;
 101                 while( ! reader.atEnd() )
 102                 {
 103                         reader.readNext();
 104
 105                         writer.writeCurrentToken(reader);
 106                         if( reader.tokenType() == QXmlStreamReader::StartElement && !isRoot )
 107                         {
 108                                 dfDebug << "Writing sing on " << reader.name().toString();
 109                                 writer.writeAttribute("sign", m_sign);
 110                                 isRoot = true;
 111                         }
 112                 }
 113         }
 114         else
 115         {
 116                 tosend = xml;
 117         }
 118
 119         dfDebug << "SENDING: " << tosend << " SIGN IS : " << m_sign;
 120
 121         m_socket->send(tosend.toLocal8Bit());
 122 }
 123
 124 void NetworkHandler::addObserver(Dash::Network::Package::Observer *observer)
 125 {
 126         m_dispatcher->addObserver(observer);
 127 }
 128
 129 void NetworkHandler::removeObserver(Dash::Network::Package::Observer *observer)
 130 {
 131         m_dispatcher->removeObserver(observer);
 132 }
 133
 134 void NetworkHandler::execute(YAMF::Command::Base *cmd)
 135 {
 136         bool isEmpty = m_commands.isEmpty();
 137
 138         dfDebug << "ENCOLANDO: " << cmd->toXml();
 139
 140         m_commands.enqueue(cmd);
 141         if( isEmpty && !m_waitingResponse && !m_sign.isEmpty() )
 142         {
 143                 m_waitingResponse = true;
 144                 send(cmd->toXml());
 145         }
 146 }
 147
 148 void NetworkHandler::newProject(const ProjectParams *params)
 149 {
 150         Dash::Network::Package::NewProject newProjectPackage(params->projectName, params->author, params->description);
 151         this->send(newProjectPackage.toString());
 152 }
 153
 154 void NetworkHandler::openProject()
 155 {
 156         Dash::Network::Package::ListProjects list;
 157         this->send(list.toString());
 158 }
 159
 160 void NetworkHandler::openProject(const QString &projectName)
 161 {
 162         m_currentPackage = "openproject";
 163         Dash::Network::Package::OpenProject project(projectName);
 164         this->send(project.toString());
 165 }
 166
 167 bool NetworkHandler::isOpen() const
 168 {
 169         return m_socket->state() == QAbstractSocket::ConnectedState;
 170 }
 171
 172 bool NetworkHandler::isValid() const
 173 {
 174         return this->isOpen() && !m_sign.isEmpty();
 175 }
 176
 177 void NetworkHandler::showChatWindow()
 178 {
 179         if( isValid() )
 180         {
 181                 m_comm->chatWindow()->show();
 182         }
 183         else
 184         {
 185                 DGui::Osd::self()->display(tr("You are not authenticated."), DGui::Osd::Error );
 186         }
 187 }
 188
 189 void NetworkHandler::readed(const QString &txt)
 190 {
 191         dfDebug << "READED: " << txt;
 192
 193         QString root;
 194
 195         {
 196                 QXmlStreamReader reader(txt);
 197                 while( !reader.atEnd() )
 198                 {
 199                         if( reader.readNext() == QXmlStreamReader::StartElement )
 200                         {
 201                                 root = reader.name().toString();
 202                                 break;
 203                         }
 204                 }
 205
 206                 if( root.isEmpty() )
 207                 {
 208                         dWarning() << "Invalid package: " << txt;
 209                         dWarning() << "Error was: " << reader.errorString();
 210                 }
 211         }
 212
 213
 214         if( !root.isEmpty() )
 215         {
 216                 if( root == "ack" )
 217                 {
 218                         Dash::Network::Parser::AckParser parser;
 219                         if( parser.parse(txt) )
 220                         {
 221                                 m_sign = parser.sign();
 222                                 DGui::Osd::self()->display(parser.motd(), DGui::Osd::Info);
 223
 224                                 if( !m_commands.isEmpty() )
 225                                 {
 226                                         m_waitingResponse = true;
 227                                         send(m_commands.first()->toXml());
 228                                 }
 229                         }
 230                 }
 231                 else if( root == "command" )
 232                 {
 233                         D_SHOW_VAR(m_commands.size());
 234                         bool executed = false;
 235
 236                         if( m_waitingResponse && !m_commands.isEmpty() )
 237                         {
 238                                 m_waitingResponse = false;
 239
 240                                 QXmlStreamReader reader(txt);
 241
 242                                 reader.readNext();
 243                                 reader.readNext();
 244                                 QString sign = reader.attributes().value("sign").toString();
 245
 246                                 if( sign == m_sign )
 247                                 {
 248                                         m_manager->setLocal(true);
 249                                         m_commands.dequeue()->redo(); // FIXME: add to stack?
 250                                         m_manager->setLocal(false);
 251
 252                                         executed = true;
 253
 254                                         if( ! m_commands.isEmpty() )
 255                                         {
 256                                                 m_waitingResponse = true;
 257                                                 send(m_commands.first()->toXml());
 258                                         }
 259                                 }
 260                         }
 261
 262
 263                         if( !executed ) // External command
 264                         {
 265                                 m_manager->setLocal(true);
 266                                 m_processor->execute(txt);
 267                                 m_manager->setLocal(false);
 268                         }
 269                 }
 270                 else if( root == "projectlist" )
 271                 {
 272                         Dash::Network::Parser::ProjectList projectList;
 273
 274                         if( projectList.parse(txt) )
 275                         {
 276                                 QDialog choose;
 277                                 Ui::DisplayProjects ui;
 278                                 ui.setupUi(&choose);
 279
 280                                 foreach( Dash::Network::Parser::ProjectList::Project p, projectList.projects())
 281                                 {
 282                                         QTreeWidgetItem *item = new QTreeWidgetItem(ui.projects);
 283                                         item->setText(0, p.name);
 284                                         item->setText(1, p.author);
 285                                         item->setText(2, p.description);
 286                                 }
 287
 288                                 if( choose.exec() == QDialog::Accepted )
 289                                 {
 290                                         if( QTreeWidgetItem *ci = ui.projects->currentItem() )
 291                                         {
 292                                                 QString projectName = ci->text(0);
 293
 294                                                 openProject(projectName);
 295                                         }
 296                                 }
 297                         }
 298                         else
 299                         {
 300                                 DGui::Osd::self()->display(QObject::tr("Error displaying the project list"), DGui::Osd::Error);
 301                         }
 302                 }
 303                 else if( root == "project" ) // FIXME: Remove
 304                 {
 305                         qFatal("OOops!");
 306                         Dash::Network::Parser::Project projectParser;
 307
 308                         QTemporaryFile file;
 309
 310                         if( projectParser.parse(txt) && file.open() )
 311                         {
 312                                 file.write(projectParser.projectData());
 313                                 file.flush();
 314
 315                                 m_manager->setLocal(true);
 316                                 m_manager->loadProject(file.fileName());
 317                                 m_manager->setLocal(false);
 318                         }
 319                         else
 320                         {
 321                                 DGui::Osd::self()->display(QObject::tr("Error loading project"), DGui::Osd::Error);
 322                         }
 323                 }
 324                 else if( root == "transfer" )
 325                 {
 326                         QXmlStreamReader reader(txt);
 327                         while(! reader.atEnd() )
 328                         {
 329                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 330                                 {
 331                                         int bytes = reader.attributes().value("bytes").toString().toInt();
 332
 333                                         m_socket->setFormat(Dash::Network::Socket::Binary);
 334                                         m_receiver->start(bytes);
 335                                 }
 336                         }
 337                 }
 338                 else if( root == "connected" )
 339                 {
 340                         QXmlStreamReader reader(txt);
 341                         QStringList logins;
 342                         while(! reader.atEnd() )
 343                         {
 344                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 345                                 {
 346                                         if(reader.name() == "user")
 347                                         {
 348                                                 logins << reader.attributes().value("login").toString();
 349                                         }
 350                                 }
 351                         }
 352                         m_comm->chatWindow()->addUsers(logins);
 353                 }
 354                 else if( root == "disconnected" )
 355                 {
 356                         QString login;
 357
 358                         QXmlStreamReader reader(txt);
 359                         while(! reader.atEnd() )
 360                         {
 361                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 362                                 {
 363                                         if(reader.name() == "user")
 364                                         {
 365                                                 login = reader.attributes().value("login").toString();
 366                                                 break;
 367                                         }
 368                                 }
 369                         }
 370
 371                         m_comm->chatWindow()->removeUser(login);
 372                 }
 373                 else
 374                 {
 375                         m_dispatcher->addSource(root, txt);
 376                         m_dispatcher->process();
 377                 }
 378         }
 379 }
 380
 381 void NetworkHandler::dataReaded(const QByteArray &data)
 382 {
 383         Q_UNUSED(data);
 384 }
 385
 386 /**
 387  *
 388  * @param fileName
 389  */
 390 void NetworkHandler::onReceiverFinished(const QString &fileName)
 391 {
 392         m_socket->setFormat(Dash::Network::Socket::Text);
 393
 394         dfDebug << m_currentPackage << " file: " << fileName;
 395
 396         if( m_currentPackage == "openproject" )
 397         {
 398                 m_manager->setLocal(true);
 399
 400                 qDebug() << QFile::exists(fileName);
 401
 402                 if( !m_manager->loadProject(fileName) )
 403                 {
 404                         qFatal("Cannot load the project!");
 405                 }
 406                 m_manager->setLocal(false);
 407                 QFile::remove(fileName);
 408         }
 409 }
 410