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 bool 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.left(100) << " SIGN IS : " << m_sign;
 120
 121         return 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().left(100);
 139
 140         m_commands.enqueue(cmd);
 141         if( isEmpty && !m_waitingResponse && !m_sign.isEmpty() )
 142         {
 143                 m_waitingResponse = send(cmd->toXml());
 144
 145                 if( !m_waitingResponse)
 146                 {
 147                         m_commands.dequeue();
 148                 }
 149         }
 150 }
 151
 152 void NetworkHandler::newProject(const ProjectParams *params)
 153 {
 154         Dash::Network::Package::NewProject newProjectPackage(params->projectName, params->author, params->description);
 155         this->send(newProjectPackage.toString());
 156 }
 157
 158 void NetworkHandler::openProject()
 159 {
 160         Dash::Network::Package::ListProjects list;
 161         this->send(list.toString());
 162 }
 163
 164 void NetworkHandler::openProject(const QString &projectName)
 165 {
 166         m_currentPackage = "openproject";
 167         Dash::Network::Package::OpenProject project(projectName);
 168         this->send(project.toString());
 169 }
 170
 171 bool NetworkHandler::isOpen() const
 172 {
 173         return m_socket->state() == QAbstractSocket::ConnectedState;
 174 }
 175
 176 bool NetworkHandler::isValid() const
 177 {
 178         return this->isOpen() && !m_sign.isEmpty();
 179 }
 180
 181 void NetworkHandler::showChatWindow()
 182 {
 183         if( isValid() )
 184         {
 185                 m_comm->chatWindow()->show();
 186         }
 187         else
 188         {
 189                 DGui::Osd::self()->display(tr("You are not authenticated."), DGui::Osd::Error );
 190         }
 191 }
 192
 193 void NetworkHandler::readed(const QString &txt)
 194 {
 195         dfDebug << "READED: " << txt.left(100);
 196
 197         QString root;
 198
 199         {
 200                 QXmlStreamReader reader(txt);
 201                 while( !reader.atEnd() )
 202                 {
 203                         if( reader.readNext() == QXmlStreamReader::StartElement )
 204                         {
 205                                 root = reader.name().toString();
 206                                 break;
 207                         }
 208                 }
 209
 210                 if( root.isEmpty() )
 211                 {
 212                         dWarning() << "Invalid package: " << txt.left(100)+"...."+txt.right(100);
 213                         dWarning() << "Error was: " << reader.errorString();
 214                 }
 215         }
 216
 217
 218         if( !root.isEmpty() )
 219         {
 220                 if( root == "ack" )
 221                 {
 222                         Dash::Network::Parser::AckParser parser;
 223                         if( parser.parse(txt) )
 224                         {
 225                                 m_sign = parser.sign();
 226                                 DGui::Osd::self()->display(parser.motd(), DGui::Osd::Info);
 227
 228                                 if( !m_commands.isEmpty() )
 229                                 {
 230                                         m_waitingResponse = true;
 231                                         send(m_commands.first()->toXml());
 232                                 }
 233                         }
 234                 }
 235                 else if( root == "command" )
 236                 {
 237                         D_SHOW_VAR(m_commands.size());
 238                         bool executed = false;
 239
 240                         if( m_waitingResponse && !m_commands.isEmpty() )
 241                         {
 242                                 m_waitingResponse = false;
 243
 244                                 QXmlStreamReader reader(txt);
 245
 246                                 reader.readNext();
 247                                 reader.readNext();
 248                                 QString sign = reader.attributes().value("sign").toString();
 249
 250                                 if( sign == m_sign )
 251                                 {
 252                                         m_manager->setLocal(true);
 253                                         m_commands.dequeue()->redo(); // FIXME: add to stack?
 254                                         m_manager->setLocal(false);
 255
 256                                         executed = true;
 257
 258                                         if( ! m_commands.isEmpty() )
 259                                         {
 260                                                 m_waitingResponse = true;
 261                                                 send(m_commands.first()->toXml());
 262                                         }
 263                                 }
 264                         }
 265
 266                         if( !executed ) // External command
 267                         {
 268                                 m_manager->setLocal(true);
 269                                 m_processor->execute(txt);
 270                                 m_manager->setLocal(false);
 271                         }
 272                 }
 273                 else if( root == "projectlist" )
 274                 {
 275                         Dash::Network::Parser::ProjectList projectList;
 276
 277                         if( projectList.parse(txt) )
 278                         {
 279                                 QDialog choose;
 280                                 Ui::DisplayProjects ui;
 281                                 ui.setupUi(&choose);
 282
 283                                 foreach( Dash::Network::Parser::ProjectList::Project p, projectList.projects())
 284                                 {
 285                                         QTreeWidgetItem *item = new QTreeWidgetItem(ui.projects);
 286                                         item->setText(0, p.name);
 287                                         item->setText(1, p.author);
 288                                         item->setText(2, p.description);
 289                                 }
 290
 291                                 if( choose.exec() == QDialog::Accepted )
 292                                 {
 293                                         if( QTreeWidgetItem *ci = ui.projects->currentItem() )
 294                                         {
 295                                                 QString projectName = ci->text(0);
 296
 297                                                 openProject(projectName);
 298                                         }
 299                                 }
 300                         }
 301                         else
 302                         {
 303                                 DGui::Osd::self()->display(QObject::tr("Error displaying the project list"), DGui::Osd::Error);
 304                         }
 305                 }
 306                 else if( root == "project" ) // FIXME: Remove
 307                 {
 308                         qFatal("OOops!");
 309                         Dash::Network::Parser::Project projectParser;
 310
 311                         QTemporaryFile file;
 312
 313                         if( projectParser.parse(txt) && file.open() )
 314                         {
 315                                 file.write(projectParser.projectData());
 316                                 file.flush();
 317
 318                                 m_manager->setLocal(true);
 319                                 m_manager->loadProject(file.fileName());
 320                                 m_manager->setLocal(false);
 321                         }
 322                         else
 323                         {
 324                                 DGui::Osd::self()->display(QObject::tr("Error loading project"), DGui::Osd::Error);
 325                         }
 326                 }
 327                 else if( root == "transfer" )
 328                 {
 329                         QXmlStreamReader reader(txt);
 330                         while(! reader.atEnd() )
 331                         {
 332                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 333                                 {
 334                                         int bytes = reader.attributes().value("bytes").toString().toInt();
 335
 336                                         m_socket->setFormat(Dash::Network::Socket::Binary);
 337                                         m_receiver->start(bytes);
 338                                 }
 339                         }
 340                 }
 341                 else if( root == "connected" )
 342                 {
 343                         QXmlStreamReader reader(txt);
 344                         QStringList logins;
 345                         while(! reader.atEnd() )
 346                         {
 347                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 348                                 {
 349                                         if(reader.name() == "user")
 350                                         {
 351                                                 logins << reader.attributes().value("login").toString();
 352                                         }
 353                                 }
 354                         }
 355                         m_comm->chatWindow()->addUsers(logins);
 356                 }
 357                 else if( root == "disconnected" )
 358                 {
 359                         QString login;
 360
 361                         QXmlStreamReader reader(txt);
 362                         while(! reader.atEnd() )
 363                         {
 364                                 if( reader.readNext() == QXmlStreamReader::StartElement )
 365                                 {
 366                                         if(reader.name() == "user")
 367                                         {
 368                                                 login = reader.attributes().value("login").toString();
 369                                                 break;
 370                                         }
 371                                 }
 372                         }
 373
 374                         m_comm->chatWindow()->removeUser(login);
 375                 }
 376                 else
 377                 {
 378                         m_dispatcher->addSource(root, txt);
 379                         m_dispatcher->process();
 380                 }
 381         }
 382 }
 383
 384 void NetworkHandler::dataReaded(const QByteArray &data)
 385 {
 386         Q_UNUSED(data);
 387 }
 388
 389 /**
 390  *
 391  * @param fileName
 392  */
 393 void NetworkHandler::onReceiverFinished(const QString &fileName)
 394 {
 395         m_socket->setFormat(Dash::Network::Socket::Text);
 396
 397         dfDebug << m_currentPackage << " file: " << fileName;
 398
 399         if( m_currentPackage == "openproject" )
 400         {
 401                 m_manager->setLocal(true);
 402
 403                 qDebug() << QFile::exists(fileName);
 404
 405                 if( !m_manager->loadProject(fileName) )
 406                 {
 407                         qFatal("Cannot load the project!");
 408                 }
 409                 m_manager->setLocal(false);
 410                 QFile::remove(fileName);
 411         }
 412 }
 413