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/network/socket.h"
  40
  41 #include "dash/network/package/newproject.h"
  42 #include "dash/network/package/connect.h"
  43 #include "dash/network/package/listprojects.h"
  44 #include "dash/network/package/openproject.h"
  45
  46 #include "dash/network/parser/ackparser.h"
  47
  48 #include "dash/network/parser/projectlistparser.h"
  49 #include "dash/network/parser/projectparser.h"
  50
  51 #include "projectmanager.h"
  52
  53 #include "ui_displayprojects.h"
  54
  55 NetworkHandler::NetworkHandler(ProjectManager *manager) : m_manager(manager), m_socket(new Dash::Network::Socket), m_dispatcher(new Dash::Network::Package::Dispatcher), m_waitingResponse(false)
  56 {
  57         m_processor = new YAMF::Command::Processor(manager->project());
  58         m_socket->addObserver(this);
  59 }
  60
  61
  62 NetworkHandler::~NetworkHandler()
  63 {
  64         delete m_dispatcher;
  65         delete m_socket;
  66 }
  67
  68 void NetworkHandler::connectToHost(const QString &host, quint16 port, const QString &login, const QString &password)
  69 {
  70         m_commands.clear();
  71
  72         m_socket->connectToHost(host, port);
  73         Dash::Network::Package::Connect cnx(login, password, 0);
  74         m_socket->send(cnx.toString().toLocal8Bit());
  75 }
  76
  77 void NetworkHandler::send(const QString &xml)
  78 {
  79         QString tosend;
  80         if( !m_sign.isEmpty() )
  81         {
  82                 QXmlStreamReader reader(xml);
  83                 QXmlStreamWriter writer(&tosend);
  84
  85                 bool isRoot = false;
  86                 while( ! reader.atEnd() )
  87                 {
  88                         reader.readNext();
  89
  90                         writer.writeCurrentToken(reader);
  91                         if( reader.tokenType() == QXmlStreamReader::StartElement && !isRoot )
  92                         {
  93                                 dfDebug << "Writing sing on " << reader.name().toString();
  94                                 writer.writeAttribute("sign", m_sign);
  95                                 isRoot = true;
  96                         }
  97                 }
  98         }
  99         else
 100         {
 101                 tosend = xml;
 102         }
 103
 104         dfDebug << "SENDING: " << tosend << " SIGN IS : " << m_sign;
 105
 106         m_socket->send(tosend.toLocal8Bit());
 107 }
 108
 109 void NetworkHandler::addObserver(Dash::Network::Package::Observer *observer)
 110 {
 111         m_dispatcher->addObserver(observer);
 112 }
 113
 114 void NetworkHandler::removeObserver(Dash::Network::Package::Observer *observer)
 115 {
 116         m_dispatcher->removeObserver(observer);
 117 }
 118
 119 void NetworkHandler::execute(YAMF::Command::Base *cmd)
 120 {
 121         bool isEmpty = m_commands.isEmpty();
 122
 123         dfDebug << "ENCOLANDO: " << cmd->toXml();
 124
 125         m_commands.enqueue(cmd);
 126         if( !m_sign.isEmpty() && isEmpty && !m_waitingResponse )
 127         {
 128                 m_waitingResponse = true;
 129                 send(cmd->toXml());
 130         }
 131 }
 132
 133 void NetworkHandler::newProject(const ProjectParams *params)
 134 {
 135         Dash::Network::Package::NewProject newProjectPackage(params->projectName, params->author, params->description);
 136         this->send(newProjectPackage.toString());
 137 }
 138
 139 void NetworkHandler::openProject()
 140 {
 141         Dash::Network::Package::ListProjects list;
 142         this->send(list.toString());
 143 }
 144
 145 void NetworkHandler::openProject(const QString &projectName)
 146 {
 147         Dash::Network::Package::OpenProject project(projectName);
 148         this->send(project.toString());
 149 }
 150
 151 bool NetworkHandler::isOpen() const
 152 {
 153         return m_socket->state() == QAbstractSocket::ConnectedState;
 154 }
 155
 156 bool NetworkHandler::isValid() const
 157 {
 158         return this->isOpen() && !m_sign.isEmpty();
 159 }
 160
 161 void NetworkHandler::readed(const QString &txt)
 162 {
 163         dfDebug << "READED: " << txt;
 164
 165         QString root;
 166
 167         {
 168                 QXmlStreamReader reader(txt);
 169                 while( !reader.atEnd() )
 170                 {
 171                         if( reader.readNext() == QXmlStreamReader::StartElement )
 172                         {
 173                                 root = reader.name().toString();
 174                                 break;
 175                         }
 176                 }
 177
 178                 if( root.isEmpty() )
 179                 {
 180                         dWarning() << "Invalid package: " << txt;
 181                         dWarning() << "Error was: " << reader.errorString();
 182                 }
 183         }
 184
 185
 186         if( !root.isEmpty() )
 187         {
 188                 if( root == "ack" )
 189                 {
 190                         Dash::Network::Parser::AckParser parser;
 191                         if( parser.parse(txt) )
 192                         {
 193                                 m_sign = parser.sign();
 194                                 DGui::Osd::self()->display(parser.motd(), DGui::Osd::Info);
 195
 196                                 if( !m_commands.isEmpty() )
 197                                 {
 198                                         m_waitingResponse = true;
 199                                         send(m_commands.first()->toXml());
 200                                 }
 201                         }
 202                 }
 203                 else if( root == "command" )
 204                 {
 205                         D_SHOW_VAR(m_commands.size());
 206                         bool executed = false;
 207
 208                         if( m_waitingResponse && !m_commands.isEmpty() )
 209                         {
 210                                 m_waitingResponse = false;
 211
 212                                 QXmlStreamReader reader(txt);
 213
 214                                 reader.readNext();
 215                                 reader.readNext();
 216                                 QString sign = reader.attributes().value("sign").toString();
 217
 218                                 if( sign == m_sign )
 219                                 {
 220                                         m_manager->setLocal(true);
 221                                         m_commands.dequeue()->redo(); // FIXME: add to stack?
 222                                         m_manager->setLocal(false);
 223
 224                                         executed = true;
 225
 226                                         if( ! m_commands.isEmpty() )
 227                                         {
 228                                                 m_waitingResponse = true;
 229                                                 send(m_commands.first()->toXml());
 230                                         }
 231                                 }
 232                         }
 233
 234
 235                         if( !executed ) // External command
 236                         {
 237                                 m_manager->setLocal(true);
 238                                 m_processor->execute(txt);
 239                                 m_manager->setLocal(false);
 240                         }
 241                 }
 242                 else if( root == "projectlist" )
 243                 {
 244                         Dash::Network::Parser::ProjectList projectList;
 245
 246                         if( projectList.parse(txt) )
 247                         {
 248                                 QDialog choose;
 249                                 Ui::DisplayProjects ui;
 250                                 ui.setupUi(&choose);
 251
 252                                 foreach( Dash::Network::Parser::ProjectList::Project p, projectList.projects())
 253                                 {
 254                                         QTreeWidgetItem *item = new QTreeWidgetItem(ui.projects);
 255                                         item->setText(0, p.name);
 256                                         item->setText(1, p.author);
 257                                         item->setText(2, p.description);
 258                                 }
 259
 260                                 if( choose.exec() == QDialog::Accepted )
 261                                 {
 262                                         if( QTreeWidgetItem *ci = ui.projects->currentItem() )
 263                                         {
 264                                                 QString projectName = ci->text(0);
 265
 266                                                 Dash::Network::Package::OpenProject op(projectName);
 267                                                 send(op.toString());
 268                                         }
 269                                 }
 270                         }
 271                         else
 272                         {
 273                                 DGui::Osd::self()->display(QObject::tr("Error displaying the project list"), DGui::Osd::Error);
 274                         }
 275                 }
 276                 else if( root == "project" )
 277                 {
 278                         Dash::Network::Parser::Project projectParser;
 279
 280                         QTemporaryFile file;
 281
 282                         if( projectParser.parse(txt) && file.open() )
 283                         {
 284                                 file.write(projectParser.projectData());
 285                                 file.flush();
 286
 287                                 m_manager->setLocal(true);
 288                                 m_manager->loadProject(file.fileName());
 289                                 m_manager->setLocal(false);
 290                         }
 291                         else
 292                         {
 293                                 DGui::Osd::self()->display(QObject::tr("Error loading project"), DGui::Osd::Error);
 294                         }
 295                 }
 296                 else
 297                 {
 298                         m_dispatcher->addSource(root, txt);
 299                         m_dispatcher->process();
 300                 }
 301         }
 302 }
 303
 304 void NetworkHandler::dataReaded(const QByteArray &data)
 305 {
 306         qFatal("SAVE THE FILE");
 307 }