gio/gapplicationimpl-dbus.c

   1 /*
   2  * Copyright © 2010 Codethink Limited
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General
  15  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Authors: Ryan Lortie <desrt@desrt.ca>
  18  */
  19
  20 #include "config.h"
  21
  22 #include "gapplicationimpl.h"
  23
  24 #include "gactiongroup.h"
  25 #include "gactiongroupexporter.h"
  26 #include "gremoteactiongroup.h"
  27 #include "gdbusactiongroup-private.h"
  28 #include "gapplication.h"
  29 #include "gfile.h"
  30 #include "gdbusconnection.h"
  31 #include "gdbusintrospection.h"
  32 #include "gdbuserror.h"
  33 #include "glib/gstdio.h"
  34
  35 #include <string.h>
  36 #include <stdio.h>
  37
  38 #include "gapplicationcommandline.h"
  39 #include "gdbusmethodinvocation.h"
  40
  41 #ifdef G_OS_UNIX
  42 #include "gunixinputstream.h"
  43 #include "gunixfdlist.h"
  44 #endif
  45
  46 /* DBus Interface definition {{{1 */
  47
  48 /* For documentation of these interfaces, see
  49  * https://wiki.gnome.org/Projects/GLib/GApplication/DBusAPI
  50  */
  51 static const gchar org_gtk_Application_xml[] =
  52   "<node>"
  53     "<interface name='org.gtk.Application'>"
  54       "<method name='Activate'>"
  55         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  56       "</method>"
  57       "<method name='Open'>"
  58         "<arg type='as' name='uris' direction='in'/>"
  59         "<arg type='s' name='hint' direction='in'/>"
  60         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  61       "</method>"
  62       "<method name='CommandLine'>"
  63         "<arg type='o' name='path' direction='in'/>"
  64         "<arg type='aay' name='arguments' direction='in'/>"
  65         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  66         "<arg type='i' name='exit-status' direction='out'/>"
  67       "</method>"
  68     "<property name='Busy' type='b' access='read'/>"
  69     "</interface>"
  70   "</node>";
  71
  72 static GDBusInterfaceInfo *org_gtk_Application;
  73
  74 static const gchar org_freedesktop_Application_xml[] =
  75   "<node>"
  76     "<interface name='org.freedesktop.Application'>"
  77       "<method name='Activate'>"
  78         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  79       "</method>"
  80       "<method name='Open'>"
  81         "<arg type='as' name='uris' direction='in'/>"
  82         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  83       "</method>"
  84       "<method name='ActivateAction'>"
  85         "<arg type='s' name='action-name' direction='in'/>"
  86         "<arg type='av' name='parameter' direction='in'/>"
  87         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  88       "</method>"
  89     "</interface>"
  90   "</node>";
  91
  92 static GDBusInterfaceInfo *org_freedesktop_Application;
  93
  94 static const gchar org_gtk_private_CommandLine_xml[] =
  95   "<node>"
  96     "<interface name='org.gtk.private.CommandLine'>"
  97       "<method name='Print'>"
  98         "<arg type='s' name='message' direction='in'/>"
  99       "</method>"
 100       "<method name='PrintError'>"
 101         "<arg type='s' name='message' direction='in'/>"
 102       "</method>"
 103     "</interface>"
 104   "</node>";
 105
 106 static GDBusInterfaceInfo *org_gtk_private_CommandLine;
 107
 108 /* GApplication implementation {{{1 */
 109 struct _GApplicationImpl
 110 {
 111   GDBusConnection *session_bus;
 112   GActionGroup    *exported_actions;
 113   const gchar     *bus_name;
 114
 115   gchar           *object_path;
 116   guint            object_id;
 117   guint            fdo_object_id;
 118   guint            actions_id;
 119
 120   gboolean         properties_live;
 121   gboolean         primary;
 122   gboolean         busy;
 123   gboolean         registered;
 124   GApplication    *app;
 125 };
 126
 127
 128 static GApplicationCommandLine *
 129 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 130
 131 static GVariant *
 132 g_application_impl_get_property (GDBusConnection *connection,
 133                                  const gchar  *sender,
 134                                  const gchar  *object_path,
 135                                  const gchar  *interface_name,
 136                                  const gchar  *property_name,
 137                                  GError      **error,
 138                                  gpointer      user_data)
 139 {
 140   GApplicationImpl *impl = user_data;
 141
 142   if (strcmp (property_name, "Busy") == 0)
 143     return g_variant_new_boolean (impl->busy);
 144
 145   g_assert_not_reached ();
 146
 147   return NULL;
 148 }
 149
 150 static void
 151 send_property_change (GApplicationImpl *impl)
 152 {
 153   GVariantBuilder builder;
 154
 155   g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
 156   g_variant_builder_add (&builder,
 157                          "{sv}",
 158                          "Busy", g_variant_new_boolean (impl->busy));
 159
 160   g_dbus_connection_emit_signal (impl->session_bus,
 161                                  NULL,
 162                                  impl->object_path,
 163                                  "org.freedesktop.DBus.Properties",
 164                                  "PropertiesChanged",
 165                                  g_variant_new ("(sa{sv}as)",
 166                                                 "org.gtk.Application",
 167                                                 &builder,
 168                                                 NULL),
 169                                  NULL);
 170 }
 171
 172 static void
 173 g_application_impl_method_call (GDBusConnection       *connection,
 174                                 const gchar           *sender,
 175                                 const gchar           *object_path,
 176                                 const gchar           *interface_name,
 177                                 const gchar           *method_name,
 178                                 GVariant              *parameters,
 179                                 GDBusMethodInvocation *invocation,
 180                                 gpointer               user_data)
 181 {
 182   GApplicationImpl *impl = user_data;
 183   GApplicationClass *class;
 184
 185   class = G_APPLICATION_GET_CLASS (impl->app);
 186
 187   if (strcmp (method_name, "Activate") == 0)
 188     {
 189       GVariant *platform_data;
 190
 191       /* Completely the same for both freedesktop and gtk interfaces */
 192
 193       g_variant_get (parameters, "(@a{sv})", &platform_data);
 194
 195       class->before_emit (impl->app, platform_data);
 196       g_signal_emit_by_name (impl->app, "activate");
 197       class->after_emit (impl->app, platform_data);
 198       g_variant_unref (platform_data);
 199
 200       g_dbus_method_invocation_return_value (invocation, NULL);
 201     }
 202
 203   else if (strcmp (method_name, "Open") == 0)
 204     {
 205       GApplicationFlags flags;
 206       GVariant *platform_data;
 207       const gchar *hint;
 208       GVariant *array;
 209       GFile **files;
 210       gint n, i;
 211
 212       flags = g_application_get_flags (impl->app);
 213       if ((flags & G_APPLICATION_HANDLES_OPEN) == 0)
 214         {
 215           g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "Application does not open files");
 216           return;
 217         }
 218
 219       /* freedesktop interface has no hint parameter */
 220       if (g_str_equal (interface_name, "org.freedesktop.Application"))
 221         {
 222           g_variant_get (parameters, "(@as@a{sv})", &array, &platform_data);
 223           hint = "";
 224         }
 225       else
 226         g_variant_get (parameters, "(@as&s@a{sv})", &array, &hint, &platform_data);
 227
 228       n = g_variant_n_children (array);
 229       files = g_new (GFile *, n + 1);
 230
 231       for (i = 0; i < n; i++)
 232         {
 233           const gchar *uri;
 234
 235           g_variant_get_child (array, i, "&s", &uri);
 236           files[i] = g_file_new_for_uri (uri);
 237         }
 238       g_variant_unref (array);
 239       files[n] = NULL;
 240
 241       class->before_emit (impl->app, platform_data);
 242       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 243       class->after_emit (impl->app, platform_data);
 244
 245       g_variant_unref (platform_data);
 246
 247       for (i = 0; i < n; i++)
 248         g_object_unref (files[i]);
 249       g_free (files);
 250
 251       g_dbus_method_invocation_return_value (invocation, NULL);
 252     }
 253
 254   else if (strcmp (method_name, "CommandLine") == 0)
 255     {
 256       GApplicationFlags flags;
 257       GApplicationCommandLine *cmdline;
 258       GVariant *platform_data;
 259       int status;
 260
 261       flags = g_application_get_flags (impl->app);
 262       if ((flags & G_APPLICATION_HANDLES_COMMAND_LINE) == 0)
 263         {
 264           g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED,
 265                                                  "Application does not handle command line arguments");
 266           return;
 267         }
 268
 269       /* Only on the GtkApplication interface */
 270
 271       cmdline = g_dbus_command_line_new (invocation);
 272       platform_data = g_variant_get_child_value (parameters, 2);
 273       class->before_emit (impl->app, platform_data);
 274       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 275       g_application_command_line_set_exit_status (cmdline, status);
 276       class->after_emit (impl->app, platform_data);
 277       g_variant_unref (platform_data);
 278       g_object_unref (cmdline);
 279     }
 280   else if (g_str_equal (method_name, "ActivateAction"))
 281     {
 282       GVariant *parameter = NULL;
 283       GVariant *platform_data;
 284       GVariantIter *iter;
 285       const gchar *name;
 286
 287       /* Only on the freedesktop interface */
 288
 289       g_variant_get (parameters, "(&sav@a{sv})", &name, &iter, &platform_data);
 290       g_variant_iter_next (iter, "v", &parameter);
 291       g_variant_iter_free (iter);
 292
 293       class->before_emit (impl->app, platform_data);
 294       g_action_group_activate_action (impl->exported_actions, name, parameter);
 295       class->after_emit (impl->app, platform_data);
 296
 297       if (parameter)
 298         g_variant_unref (parameter);
 299
 300       g_variant_unref (platform_data);
 301
 302       g_dbus_method_invocation_return_value (invocation, NULL);
 303     }
 304   else
 305     g_assert_not_reached ();
 306 }
 307
 308 static gchar *
 309 application_path_from_appid (const gchar *appid)
 310 {
 311   gchar *appid_path, *iter;
 312
 313   if (appid == NULL)
 314     /* this is a private implementation detail */
 315     return g_strdup ("/org/gtk/Application/anonymous");
 316
 317   appid_path = g_strconcat ("/", appid, NULL);
 318   for (iter = appid_path; *iter; iter++)
 319     {
 320       if (*iter == '.')
 321         *iter = '/';
 322
 323       if (*iter == '-')
 324         *iter = '_';
 325     }
 326
 327   return appid_path;
 328 }
 329
 330 /* Attempt to become the primary instance.
 331  *
 332  * Returns %TRUE if everything went OK, regardless of if we became the
 333  * primary instance or not.  %FALSE is reserved for when something went
 334  * seriously wrong (and @error will be set too, in that case).
 335  *
 336  * After a %TRUE return, impl->primary will be TRUE if we were
 337  * successful.
 338  */
 339 static gboolean
 340 g_application_impl_attempt_primary (GApplicationImpl  *impl,
 341                                     GCancellable      *cancellable,
 342                                     GError           **error)
 343 {
 344   const static GDBusInterfaceVTable vtable = {
 345     g_application_impl_method_call,
 346     g_application_impl_get_property,
 347     NULL /* set_property */
 348   };
 349   GApplicationClass *app_class = G_APPLICATION_GET_CLASS (impl->app);
 350   GVariant *reply;
 351   guint32 rval;
 352
 353   if (org_gtk_Application == NULL)
 354     {
 355       GError *error = NULL;
 356       GDBusNodeInfo *info;
 357
 358       info = g_dbus_node_info_new_for_xml (org_gtk_Application_xml, &error);
 359       if G_UNLIKELY (info == NULL)
 360         g_error ("%s", error->message);
 361       org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
 362       g_assert (org_gtk_Application != NULL);
 363       g_dbus_interface_info_ref (org_gtk_Application);
 364       g_dbus_node_info_unref (info);
 365
 366       info = g_dbus_node_info_new_for_xml (org_freedesktop_Application_xml, &error);
 367       if G_UNLIKELY (info == NULL)
 368         g_error ("%s", error->message);
 369       org_freedesktop_Application = g_dbus_node_info_lookup_interface (info, "org.freedesktop.Application");
 370       g_assert (org_freedesktop_Application != NULL);
 371       g_dbus_interface_info_ref (org_freedesktop_Application);
 372       g_dbus_node_info_unref (info);
 373     }
 374
 375   /* We could possibly have been D-Bus activated as a result of incoming
 376    * requests on either the application or actiongroup interfaces.
 377    * Because of how GDBus dispatches messages, we need to ensure that
 378    * both of those things are registered before we attempt to request
 379    * our name.
 380    *
 381    * The action group need not be populated yet, as long as it happens
 382    * before we return to the mainloop.  The reason for that is because
 383    * GDBus does the check to make sure the object exists from the worker
 384    * thread but doesn't actually dispatch the action invocation until we
 385    * hit the mainloop in this thread.  There is also no danger of
 386    * receiving 'activate' or 'open' signals until after 'startup' runs,
 387    * for the same reason.
 388    */
 389   impl->object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
 390                                                        org_gtk_Application, &vtable, impl, NULL, error);
 391
 392   if (impl->object_id == 0)
 393     return FALSE;
 394
 395   impl->fdo_object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
 396                                                            org_freedesktop_Application, &vtable, impl, NULL, error);
 397
 398   if (impl->fdo_object_id == 0)
 399     return FALSE;
 400
 401   impl->actions_id = g_dbus_connection_export_action_group (impl->session_bus, impl->object_path,
 402                                                             impl->exported_actions, error);
 403
 404   if (impl->actions_id == 0)
 405     return FALSE;
 406
 407   impl->registered = TRUE;
 408   if (!app_class->dbus_register (impl->app,
 409                                  impl->session_bus,
 410                                  impl->object_path,
 411                                  error))
 412     return FALSE;
 413
 414   if (impl->bus_name == NULL)
 415     {
 416       /* If this is a non-unique application then it is sufficient to
 417        * have our object paths registered. We can return now.
 418        *
 419        * Note: non-unique applications always act as primary-instance.
 420        */
 421       impl->primary = TRUE;
 422       return TRUE;
 423     }
 424
 425   /* If this is a unique application then we need to attempt to own
 426    * the well-known name and fall back to remote mode (!is_primary)
 427    * in the case that we can't do that.
 428    */
 429   /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 430   reply = g_dbus_connection_call_sync (impl->session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",
 431                                        "org.freedesktop.DBus", "RequestName",
 432                                        g_variant_new ("(su)", impl->bus_name, 0x4), G_VARIANT_TYPE ("(u)"),
 433                                        0, -1, cancellable, error);
 434
 435   if (reply == NULL)
 436     return FALSE;
 437
 438   g_variant_get (reply, "(u)", &rval);
 439   g_variant_unref (reply);
 440
 441   /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 442   impl->primary = (rval != 3);
 443
 444   return TRUE;
 445 }
 446
 447 /* Stop doing the things that the primary instance does.
 448  *
 449  * This should be called if attempting to become the primary instance
 450  * failed (in order to clean up any partial success) and should also
 451  * be called when freeing the GApplication.
 452  *
 453  * It is safe to call this multiple times.
 454  */
 455 static void
 456 g_application_impl_stop_primary (GApplicationImpl *impl)
 457 {
 458   GApplicationClass *app_class = G_APPLICATION_GET_CLASS (impl->app);
 459
 460   if (impl->registered)
 461     {
 462       app_class->dbus_unregister (impl->app,
 463                                   impl->session_bus,
 464                                   impl->object_path);
 465       impl->registered = FALSE;
 466     }
 467
 468   if (impl->object_id)
 469     {
 470       g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
 471       impl->object_id = 0;
 472     }
 473
 474   if (impl->fdo_object_id)
 475     {
 476       g_dbus_connection_unregister_object (impl->session_bus, impl->fdo_object_id);
 477       impl->fdo_object_id = 0;
 478     }
 479
 480   if (impl->actions_id)
 481     {
 482       g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
 483       impl->actions_id = 0;
 484     }
 485
 486   if (impl->primary && impl->bus_name)
 487     {
 488       g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
 489                               "/org/freedesktop/DBus", "org.freedesktop.DBus",
 490                               "ReleaseName", g_variant_new ("(s)", impl->bus_name),
 491                               NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 492       impl->primary = FALSE;
 493     }
 494 }
 495
 496 void
 497 g_application_impl_set_busy_state (GApplicationImpl *impl,
 498                                    gboolean          busy)
 499 {
 500   if (impl->busy != busy)
 501     {
 502       impl->busy = busy;
 503       send_property_change (impl);
 504     }
 505 }
 506
 507 void
 508 g_application_impl_destroy (GApplicationImpl *impl)
 509 {
 510   g_application_impl_stop_primary (impl);
 511
 512   if (impl->session_bus)
 513     g_object_unref (impl->session_bus);
 514
 515   g_free (impl->object_path);
 516
 517   g_slice_free (GApplicationImpl, impl);
 518 }
 519
 520 GApplicationImpl *
 521 g_application_impl_register (GApplication        *application,
 522                              const gchar         *appid,
 523                              GApplicationFlags    flags,
 524                              GActionGroup        *exported_actions,
 525                              GRemoteActionGroup **remote_actions,
 526                              GCancellable        *cancellable,
 527                              GError             **error)
 528 {
 529   GDBusActionGroup *actions;
 530   GApplicationImpl *impl;
 531
 532   g_assert ((flags & G_APPLICATION_NON_UNIQUE) || appid != NULL);
 533
 534   impl = g_slice_new0 (GApplicationImpl);
 535
 536   impl->app = application;
 537   impl->exported_actions = exported_actions;
 538
 539   /* non-unique applications do not attempt to acquire a bus name */
 540   if (~flags & G_APPLICATION_NON_UNIQUE)
 541     impl->bus_name = appid;
 542
 543   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 544
 545   if (impl->session_bus == NULL)
 546     {
 547       /* If we can't connect to the session bus, proceed as a normal
 548        * non-unique application.
 549        */
 550       *remote_actions = NULL;
 551       return impl;
 552     }
 553
 554   impl->object_path = application_path_from_appid (appid);
 555
 556   /* Only try to be the primary instance if
 557    * G_APPLICATION_IS_LAUNCHER was not specified.
 558    */
 559   if (~flags & G_APPLICATION_IS_LAUNCHER)
 560     {
 561       if (!g_application_impl_attempt_primary (impl, cancellable, error))
 562         {
 563           g_application_impl_destroy (impl);
 564           return NULL;
 565         }
 566
 567       if (impl->primary)
 568         return impl;
 569
 570       /* We didn't make it.  Drop our service-side stuff. */
 571       g_application_impl_stop_primary (impl);
 572
 573       if (flags & G_APPLICATION_IS_SERVICE)
 574         {
 575           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 576                        "Unable to acquire bus name '%s'", appid);
 577           g_application_impl_destroy (impl);
 578
 579           return NULL;
 580         }
 581     }
 582
 583   /* We are non-primary.  Try to get the primary's list of actions.
 584    * This also serves as a mechanism to ensure that the primary exists
 585    * (ie: DBus service files installed correctly, etc).
 586    */
 587   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
 588   if (!g_dbus_action_group_sync (actions, cancellable, error))
 589     {
 590       /* The primary appears not to exist.  Fail the registration. */
 591       g_application_impl_destroy (impl);
 592       g_object_unref (actions);
 593
 594       return NULL;
 595     }
 596
 597   *remote_actions = G_REMOTE_ACTION_GROUP (actions);
 598
 599   return impl;
 600 }
 601
 602 void
 603 g_application_impl_activate (GApplicationImpl *impl,
 604                              GVariant         *platform_data)
 605 {
 606   g_dbus_connection_call (impl->session_bus,
 607                           impl->bus_name,
 608                           impl->object_path,
 609                           "org.gtk.Application",
 610                           "Activate",
 611                           g_variant_new ("(@a{sv})", platform_data),
 612                           NULL, 0, -1, NULL, NULL, NULL);
 613 }
 614
 615 void
 616 g_application_impl_open (GApplicationImpl  *impl,
 617                          GFile            **files,
 618                          gint               n_files,
 619                          const gchar       *hint,
 620                          GVariant          *platform_data)
 621 {
 622   GVariantBuilder builder;
 623   gint i;
 624
 625   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 626   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 627   for (i = 0; i < n_files; i++)
 628     {
 629       gchar *uri = g_file_get_uri (files[i]);
 630       g_variant_builder_add (&builder, "s", uri);
 631       g_free (uri);
 632     }
 633   g_variant_builder_close (&builder);
 634   g_variant_builder_add (&builder, "s", hint);
 635   g_variant_builder_add_value (&builder, platform_data);
 636
 637   g_dbus_connection_call (impl->session_bus,
 638                           impl->bus_name,
 639                           impl->object_path,
 640                           "org.gtk.Application",
 641                           "Open",
 642                           g_variant_builder_end (&builder),
 643                           NULL, 0, -1, NULL, NULL, NULL);
 644 }
 645
 646 static void
 647 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 648                                         const gchar           *sender,
 649                                         const gchar           *object_path,
 650                                         const gchar           *interface_name,
 651                                         const gchar           *method_name,
 652                                         GVariant              *parameters,
 653                                         GDBusMethodInvocation *invocation,
 654                                         gpointer               user_data)
 655 {
 656   const gchar *message;
 657
 658   g_variant_get_child (parameters, 0, "&s", &message);
 659
 660   if (strcmp (method_name, "Print") == 0)
 661     g_print ("%s", message);
 662   else if (strcmp (method_name, "PrintError") == 0)
 663     g_printerr ("%s", message);
 664   else
 665     g_assert_not_reached ();
 666
 667   g_dbus_method_invocation_return_value (invocation, NULL);
 668 }
 669
 670 typedef struct
 671 {
 672   GMainLoop *loop;
 673   int status;
 674 } CommandLineData;
 675
 676 static void
 677 g_application_impl_cmdline_done (GObject      *source,
 678                                  GAsyncResult *result,
 679                                  gpointer      user_data)
 680 {
 681   CommandLineData *data = user_data;
 682   GError *error = NULL;
 683   GVariant *reply;
 684
 685 #ifdef G_OS_UNIX
 686   reply = g_dbus_connection_call_with_unix_fd_list_finish (G_DBUS_CONNECTION (source), NULL, result, &error);
 687 #else
 688   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source), result, &error);
 689 #endif
 690
 691
 692   if (reply != NULL)
 693     {
 694       g_variant_get (reply, "(i)", &data->status);
 695       g_variant_unref (reply);
 696     }
 697
 698   else
 699     {
 700       g_printerr ("%s\n", error->message);
 701       g_error_free (error);
 702       data->status = 1;
 703     }
 704
 705   g_main_loop_quit (data->loop);
 706 }
 707
 708 int
 709 g_application_impl_command_line (GApplicationImpl    *impl,
 710                                  const gchar * const *arguments,
 711                                  GVariant            *platform_data)
 712 {
 713   const static GDBusInterfaceVTable vtable = {
 714     g_application_impl_cmdline_method_call
 715   };
 716   const gchar *object_path = "/org/gtk/Application/CommandLine";
 717   GMainContext *context;
 718   CommandLineData data;
 719   guint object_id;
 720
 721   context = g_main_context_new ();
 722   data.loop = g_main_loop_new (context, FALSE);
 723   g_main_context_push_thread_default (context);
 724
 725   if (org_gtk_private_CommandLine == NULL)
 726     {
 727       GError *error = NULL;
 728       GDBusNodeInfo *info;
 729
 730       info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
 731       if G_UNLIKELY (info == NULL)
 732         g_error ("%s", error->message);
 733       org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
 734       g_assert (org_gtk_private_CommandLine != NULL);
 735       g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 736       g_dbus_node_info_unref (info);
 737     }
 738
 739   object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
 740                                                  org_gtk_private_CommandLine,
 741                                                  &vtable, &data, NULL, NULL);
 742   /* In theory we should try other paths... */
 743   g_assert (object_id != 0);
 744
 745 #ifdef G_OS_UNIX
 746   {
 747     GError *error = NULL;
 748     GUnixFDList *fd_list;
 749
 750     /* send along the stdin in case
 751      * g_application_command_line_get_stdin_data() is called
 752      */
 753     fd_list = g_unix_fd_list_new ();
 754     g_unix_fd_list_append (fd_list, 0, &error);
 755     g_assert_no_error (error);
 756
 757     g_dbus_connection_call_with_unix_fd_list (impl->session_bus, impl->bus_name, impl->object_path,
 758                                               "org.gtk.Application", "CommandLine",
 759                                               g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
 760                                               G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, fd_list, NULL,
 761                                               g_application_impl_cmdline_done, &data);
 762     g_object_unref (fd_list);
 763   }
 764 #else
 765   g_dbus_connection_call (impl->session_bus, impl->bus_name, impl->object_path,
 766                           "org.gtk.Application", "CommandLine",
 767                           g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
 768                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 769                           g_application_impl_cmdline_done, &data);
 770 #endif
 771
 772   g_main_loop_run (data.loop);
 773
 774   g_main_context_pop_thread_default (context);
 775   g_main_context_unref (context);
 776   g_main_loop_unref (data.loop);
 777
 778   return data.status;
 779 }
 780
 781 void
 782 g_application_impl_flush (GApplicationImpl *impl)
 783 {
 784   if (impl->session_bus)
 785     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 786 }
 787
 788 GDBusConnection *
 789 g_application_impl_get_dbus_connection (GApplicationImpl *impl)
 790 {
 791   return impl->session_bus;
 792 }
 793
 794 const gchar *
 795 g_application_impl_get_dbus_object_path (GApplicationImpl *impl)
 796 {
 797   return impl->object_path;
 798 }
 799
 800 /* GDBusCommandLine implementation {{{1 */
 801
 802 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 803 static GType g_dbus_command_line_get_type (void);
 804 typedef struct
 805 {
 806   GApplicationCommandLine  parent_instance;
 807   GDBusMethodInvocation   *invocation;
 808
 809   GDBusConnection *connection;
 810   const gchar     *bus_name;
 811   const gchar     *object_path;
 812 } GDBusCommandLine;
 813
 814
 815 G_DEFINE_TYPE (GDBusCommandLine,
 816                g_dbus_command_line,
 817                G_TYPE_APPLICATION_COMMAND_LINE)
 818
 819 static void
 820 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 821                                    const gchar             *message)
 822 {
 823   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 824
 825   g_dbus_connection_call (gdbcl->connection,
 826                           gdbcl->bus_name,
 827                           gdbcl->object_path,
 828                           "org.gtk.private.CommandLine", "Print",
 829                           g_variant_new ("(s)", message),
 830                           NULL, 0, -1, NULL, NULL, NULL);
 831 }
 832
 833 static void
 834 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 835                                       const gchar             *message)
 836 {
 837   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 838
 839   g_dbus_connection_call (gdbcl->connection,
 840                           gdbcl->bus_name,
 841                           gdbcl->object_path,
 842                           "org.gtk.private.CommandLine", "PrintError",
 843                           g_variant_new ("(s)", message),
 844                           NULL, 0, -1, NULL, NULL, NULL);
 845 }
 846
 847 static GInputStream *
 848 g_dbus_command_line_get_stdin (GApplicationCommandLine *cmdline)
 849 {
 850 #ifdef G_OS_UNIX
 851   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 852   GInputStream *result = NULL;
 853   GDBusMessage *message;
 854   GUnixFDList *fd_list;
 855
 856   message = g_dbus_method_invocation_get_message (gdbcl->invocation);
 857   fd_list = g_dbus_message_get_unix_fd_list (message);
 858
 859   if (fd_list && g_unix_fd_list_get_length (fd_list))
 860     {
 861       gint *fds, n_fds, i;
 862
 863       fds = g_unix_fd_list_steal_fds (fd_list, &n_fds);
 864       result = g_unix_input_stream_new (fds[0], TRUE);
 865       for (i = 1; i < n_fds; i++)
 866         (void) g_close (fds[i], NULL);
 867       g_free (fds);
 868     }
 869
 870   return result;
 871 #else
 872   return NULL;
 873 #endif
 874 }
 875
 876 static void
 877 g_dbus_command_line_finalize (GObject *object)
 878 {
 879   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 880   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 881   gint status;
 882
 883   status = g_application_command_line_get_exit_status (cmdline);
 884
 885   g_dbus_method_invocation_return_value (gdbcl->invocation,
 886                                          g_variant_new ("(i)", status));
 887   g_object_unref (gdbcl->invocation);
 888
 889   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 890     ->finalize (object);
 891 }
 892
 893 static void
 894 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 895 {
 896 }
 897
 898 static void
 899 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 900 {
 901   GObjectClass *object_class = G_OBJECT_CLASS (class);
 902
 903   object_class->finalize = g_dbus_command_line_finalize;
 904   class->printerr_literal = g_dbus_command_line_printerr_literal;
 905   class->print_literal = g_dbus_command_line_print_literal;
 906   class->get_stdin = g_dbus_command_line_get_stdin;
 907 }
 908
 909 static GApplicationCommandLine *
 910 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 911 {
 912   GDBusCommandLine *gdbcl;
 913   GVariant *args;
 914   GVariant *arguments, *platform_data;
 915
 916   args = g_dbus_method_invocation_get_parameters (invocation);
 917
 918   arguments = g_variant_get_child_value (args, 1);
 919   platform_data = g_variant_get_child_value (args, 2);
 920   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 921                         "arguments", arguments,
 922                         "platform-data", platform_data,
 923                         NULL);
 924   g_variant_unref (arguments);
 925   g_variant_unref (platform_data);
 926
 927   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 928   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 929   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 930   gdbcl->invocation = g_object_ref (invocation);
 931
 932   return G_APPLICATION_COMMAND_LINE (gdbcl);
 933 }
 934
 935 /* Epilogue {{{1 */
 936
 937 /* vim:set foldmethod=marker: */