libldmgreeter-qt/ldmgreeter.cpp

   1 #include "ldmgreeter.h"
   2
   3 #include "powermanagementinterface.h"
   4 #include "displayinterface.h"
   5 #include "usermanagerinterface.h"
   6 #include "consolekitinterface.h"
   7 #include "ldmuser.h"
   8 #include "ldmsession.h"
   9
  10 #include <QtNetwork/QHostInfo> //needed for localHostName
  11 #include <QDebug>
  12 #include <QtDBus/QDBusReply>
  13 #include <QtDBus/QDBusPendingReply>
  14 #include <QtGui/QApplication>
  15 #include <QtGui/QDesktopWidget>
  16
  17 class LdmGreeterPrivate
  18 {
  19 public:
  20     QString language;
  21     QString layout;
  22     QString session;
  23     QString username;
  24     QString themeName; //TODO turn into a KConfig
  25     int delay;
  26
  27     QString currentlyAuthenticatingUser;
  28
  29     PowerManagementInterface* powerManagement;
  30     DisplayInterface* display;
  31     UserManagerInterface* userManager;
  32     ConsoleKitInterface* consoleKit;
  33 };
  34
  35
  36
  37 LdmGreeter::LdmGreeter() :
  38     QWidget(0),
  39     d(new LdmGreeterPrivate)
  40 {
  41     QRect screen = QApplication::desktop()->rect();
  42     this->setGeometry(screen);
  43
  44     qDBusRegisterMetaType<LdmUser>();
  45     qDBusRegisterMetaType<QList<LdmUser> >();
  46
  47     qDBusRegisterMetaType<LdmAuthRequest>();
  48     qDBusRegisterMetaType<QList<LdmAuthRequest> >();
  49
  50     d->powerManagement = new PowerManagementInterface("org.freedesktop.PowerManagement","/org/freedesktop/PowerManagement", QDBusConnection::sessionBus(), this);
  51     d->display = new DisplayInterface("org.lightdm.LightDisplayManager", "/org/lightdm/LightDisplayManager/Display0", QDBusConnection::sessionBus(), this);
  52     d->userManager = new UserManagerInterface("org.lightdm.LightDisplayManager", "/org/lightdm/LightDisplayManager/Users", QDBusConnection::sessionBus(), this);
  53     d->consoleKit = new ConsoleKitInterface("org.freedesktop.ConsoleKit","/org/freedesktop/ConsoleKit/Manager", QDBusConnection::systemBus(), this );
  54
  55     //FIXME use the pendingReply, it's a much nicer API.
  56     QDBusReply<QString> connectResult = d->display->Connect(d->language, d->layout, d->session, d->username, d->delay);
  57     connect(d->display, SIGNAL(quitGreeter()), SIGNAL(quit()));
  58
  59
  60     if(!connectResult.isValid())
  61     {
  62         qDebug() << connectResult.error().name();
  63     }
  64     else
  65     {
  66         d->themeName = connectResult;
  67         //TODO create a kconfig from this path name - or not. Keep this lib Qt only?
  68     }
  69 }
  70
  71 LdmGreeter::~LdmGreeter()
  72 {
  73     delete d;
  74 }
  75
  76
  77
  78 QString LdmGreeter::hostname()
  79 {
  80     return QHostInfo::localHostName();
  81 }
  82
  83 QString LdmGreeter::defaultLanguage()
  84 {
  85     return d->language;
  86 }
  87
  88 QString LdmGreeter::defaultLayout()
  89 {
  90     return d->layout;
  91 }
  92
  93 QString LdmGreeter::defaultSession()
  94 {
  95     return d->session;
  96 }
  97
  98 QString LdmGreeter::defaultUsername()
  99 {
 100     return d->username;
 101 }
 102
 103
 104 QList<LdmUser> LdmGreeter::users()
 105 {
 106     QDBusPendingReply<QList<LdmUser> > users = d->userManager->GetUsers();
 107     users.waitForFinished();
 108     if (users.isValid())
 109     {
 110         return users.value();
 111     }
 112     else
 113     {
 114         qDebug() << users.error().name();
 115         qDebug() << users.error().message();
 116         return QList<LdmUser>();
 117     }
 118 }
 119
 120 QList<LdmSession> LdmGreeter::sessions()
 121 {
 122     QList<LdmSession> sessions;
 123     //FIXME don't hardcode this!
 124     //FIXME I'm not happy with this bodgy finding .desktop files, and strcat situtation.
 125     QDir sessionDir("/usr/share/xsessions");
 126     sessionDir.setNameFilters(QStringList() << "*.desktop");
 127     foreach(QString sessionFileName, sessionDir.entryList())
 128     {
 129         QSettings sessionData(QString("/usr/share/xsessions/").append(sessionFileName), QSettings::IniFormat);
 130         sessionData.beginGroup("Desktop Entry");
 131         sessionFileName.chop(8);// chop(8) removes '.desktop'
 132         QString name = sessionData.value("Name").toString();
 133         QString comment = sessionData.value("Comment").toString();
 134         LdmSession session(sessionFileName, name, comment);
 135
 136         sessions.append(session);
 137     }
 138     return sessions;
 139 }
 140
 141
 142 void LdmGreeter::startAuthentication(QString username)
 143 {
 144     d->currentlyAuthenticatingUser = username;
 145     QDBusPendingReply<int, QList<LdmAuthRequest> > reply = d->display->StartAuthentication(username);
 146     QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
 147     connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), SLOT(onAuthFinished(QDBusPendingCallWatcher*)));
 148 }
 149
 150 void LdmGreeter::provideSecret(QString secret)
 151 {
 152     QDBusPendingReply<int, QList<LdmAuthRequest> > reply = d->display->ContinueAuthentication(QStringList() << secret);
 153     QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
 154     connect(watcher, SIGNAL(finished(QDBusPendingCallWatcher*)), SLOT(onAuthFinished(QDBusPendingCallWatcher*)));
 155 }
 156
 157 void LdmGreeter::login(QString username, QString session, QString language)
 158 {
 159     d->display->Login(username, session, language);
 160 }
 161
 162
 163 bool LdmGreeter::canSuspend()
 164 {
 165     QDBusPendingReply<bool> reply = d->powerManagement->canSuspend();
 166     reply.waitForFinished();
 167     return reply.value();
 168 }
 169
 170 void LdmGreeter::suspend()
 171 {
 172     d->powerManagement->suspend();
 173 }
 174
 175 bool LdmGreeter::canHibernate()
 176 {
 177     QDBusPendingReply<bool> reply = d->powerManagement->canHibernate();
 178     reply.waitForFinished();
 179     return reply.value();
 180 }
 181
 182 void LdmGreeter::hibernate()
 183 {
 184     d->powerManagement->hibernate();
 185 }
 186
 187 bool LdmGreeter::canShutdown()
 188 {
 189     QDBusPendingReply<bool> reply = d->consoleKit->canStop();
 190     reply.waitForFinished();
 191     return reply.value();
 192 }
 193
 194
 195 void LdmGreeter::shutdown()
 196 {
 197     d->consoleKit->stop();
 198 }
 199
 200 bool LdmGreeter::canRestart()
 201 {
 202     QDBusPendingReply<bool> reply = d->consoleKit->canRestart();
 203     reply.waitForFinished();
 204         return reply.value();
 205 }
 206
 207 void LdmGreeter::restart()
 208 {
 209     d->consoleKit->restart();
 210 }
 211
 212
 213 void LdmGreeter::onAuthFinished(QDBusPendingCallWatcher *call)
 214 {
 215     QDBusPendingReply<int, QList<LdmAuthRequest> > reply = *call;
 216     if(reply.isValid())
 217     {
 218         QList<LdmAuthRequest> requests = reply.argumentAt<1>();
 219
 220         if (requests.size() == 0) //if there are no requests
 221         {
 222             int returnValue = reply.argumentAt<0>();
 223             if (returnValue == 0) //Magic number..FIXME
 224             {
 225                 emit authenticationComplete(true);
 226             }
 227             else
 228             {
 229                 emit authenticationComplete(false);
 230             }
 231         }
 232         else
 233         {
 234             foreach(LdmAuthRequest request, requests)
 235             {
 236                 switch(request.messageType())
 237                 {
 238                     //FIXME create an enum use that (or include PAM libs)
 239                 case 0:
 240                 case 1:
 241                     emit showPrompt(request.message());
 242                     break;
 243                 case 2:
 244                     emit showMessage(request.message());
 245                     break;
 246                 case 3:
 247                     emit showError(request.message());
 248                     break;
 249                 }
 250             }
 251         }
 252     }
 253     else
 254     {
 255         qDebug() << reply.error().name();
 256         qDebug() << reply.error().message();
 257     }
 258 }