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 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, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  *
  19  * Authors: Ryan Lortie <desrt@desrt.ca>
  20  */
  21
  22 #include "config.h"
  23
  24 #include "gapplicationimpl.h"
  25
  26 #include "gactiongroup.h"
  27 #include "gactiongroupexporter.h"
  28 #include "gremoteactiongroup.h"
  29 #include "gdbusactiongroup-private.h"
  30 #include "gapplication.h"
  31 #include "gfile.h"
  32 #include "gdbusconnection.h"
  33 #include "gdbusintrospection.h"
  34 #include "gdbuserror.h"
  35 #include "glib/gstdio.h"
  36
  37 #include <string.h>
  38 #include <stdio.h>
  39
  40 #include "gapplicationcommandline.h"
  41 #include "gdbusmethodinvocation.h"
  42
  43 #ifdef G_OS_UNIX
  44 #include "gunixinputstream.h"
  45 #include "gunixfdlist.h"
  46 #endif
  47
  48 /* DBus Interface definition {{{1 */
  49
  50 /* For documentation of these interfaces, see
  51  * https://live.gnome.org/GApplication/DBusAPI
  52  */
  53 static const gchar org_gtk_Application_xml[] =
  54   "<node>"
  55     "<interface name='org.gtk.Application'>"
  56       "<method name='Activate'>"
  57         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  58       "</method>"
  59       "<method name='Open'>"
  60         "<arg type='as' name='uris' direction='in'/>"
  61         "<arg type='s' name='hint' direction='in'/>"
  62         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  63       "</method>"
  64       "<method name='CommandLine'>"
  65         "<arg type='o' name='path' direction='in'/>"
  66         "<arg type='aay' name='arguments' direction='in'/>"
  67         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  68         "<arg type='i' name='exit-status' direction='out'/>"
  69       "</method>"
  70     "<property name='Busy' type='b' access='read'/>"
  71     "</interface>"
  72   "</node>";
  73
  74 static GDBusInterfaceInfo *org_gtk_Application;
  75
  76 static const gchar org_freedesktop_Application_xml[] =
  77   "<node>"
  78     "<interface name='org.freedesktop.Application'>"
  79       "<method name='Activate'>"
  80         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  81       "</method>"
  82       "<method name='Open'>"
  83         "<arg type='as' name='uris' direction='in'/>"
  84         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  85       "</method>"
  86       "<method name='ActivateAction'>"
  87         "<arg type='s' name='action-name' direction='in'/>"
  88         "<arg type='av' name='parameter' direction='in'/>"
  89         "<arg type='a{sv}' name='platform-data' direction='in'/>"
  90       "</method>"
  91     "</interface>"
  92   "</node>";
  93
  94 static GDBusInterfaceInfo *org_freedesktop_Application;
  95
  96 static const gchar org_gtk_private_CommandLine_xml[] =
  97   "<node>"
  98     "<interface name='org.gtk.private.CommandLine'>"
  99       "<method name='Print'>"
 100         "<arg type='s' name='message' direction='in'/>"
 101       "</method>"
 102       "<method name='PrintError'>"
 103         "<arg type='s' name='message' direction='in'/>"
 104       "</method>"
 105     "</interface>"
 106   "</node>";
 107
 108 static GDBusInterfaceInfo *org_gtk_private_CommandLine;
 109
 110 /* GApplication implementation {{{1 */
 111 struct _GApplicationImpl
 112 {
 113   GDBusConnection *session_bus;
 114   GActionGroup    *exported_actions;
 115   const gchar     *bus_name;
 116
 117   gchar           *object_path;
 118   guint            object_id;
 119   guint            fdo_object_id;
 120   guint            actions_id;
 121
 122   gboolean         properties_live;
 123   gboolean         primary;
 124   gboolean         busy;
 125   GApplication    *app;
 126 };
 127
 128
 129 static GApplicationCommandLine *
 130 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 131
 132 static GVariant *
 133 g_application_impl_get_property (GDBusConnection *connection,
 134                                  const gchar  *sender,
 135                                  const gchar  *object_path,
 136                                  const gchar  *interface_name,
 137                                  const gchar  *property_name,
 138                                  GError      **error,
 139                                  gpointer      user_data)
 140 {
 141   GApplicationImpl *impl = user_data;
 142
 143   if (strcmp (property_name, "Busy") == 0)
 144     return g_variant_new_boolean (impl->busy);
 145
 146   g_assert_not_reached ();
 147
 148   return NULL;
 149 }
 150
 151 static void
 152 send_property_change (GApplicationImpl *impl)
 153 {
 154   GVariantBuilder builder;
 155
 156   g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
 157   g_variant_builder_add (&builder,
 158                          "{sv}",
 159                          "Busy", g_variant_new_boolean (impl->busy));
 160
 161   g_dbus_connection_emit_signal (impl->session_bus,
 162                                  NULL,
 163                                  impl->object_path,
 164                                  "org.freedesktop.DBus.Properties",
 165                                  "PropertiesChanged",
 166                                  g_variant_new ("(sa{sv}as)",
 167                                                 "org.gtk.Application",
 168                                                 &builder,
 169                                                 NULL),
 170                                  NULL);
 171 }
 172
 173 static void
 174 g_application_impl_method_call (GDBusConnection       *connection,
 175                                 const gchar           *sender,
 176                                 const gchar           *object_path,
 177                                 const gchar           *interface_name,
 178                                 const gchar           *method_name,
 179                                 GVariant              *parameters,
 180                                 GDBusMethodInvocation *invocation,
 181                                 gpointer               user_data)
 182 {
 183   GApplicationImpl *impl = user_data;
 184   GApplicationClass *class;
 185
 186   class = G_APPLICATION_GET_CLASS (impl->app);
 187
 188   if (strcmp (method_name, "Activate") == 0)
 189     {
 190       GVariant *platform_data;
 191
 192       /* Completely the same for both freedesktop and gtk interfaces */
 193
 194       g_variant_get (parameters, "(@a{sv})", &platform_data);
 195
 196       class->before_emit (impl->app, platform_data);
 197       g_signal_emit_by_name (impl->app, "activate");
 198       class->after_emit (impl->app, platform_data);
 199       g_variant_unref (platform_data);
 200
 201       g_dbus_method_invocation_return_value (invocation, NULL);
 202     }
 203
 204   else if (strcmp (method_name, "Open") == 0)
 205     {
 206       GApplicationFlags flags;
 207       GVariant *platform_data;
 208       const gchar *hint;
 209       GVariant *array;
 210       GFile **files;
 211       gint n, i;
 212
 213       flags = g_application_get_flags (impl->app);
 214       if ((flags & G_APPLICATION_HANDLES_OPEN) == 0)
 215         {
 216           g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "Application does not open files");
 217           return;
 218         }
 219
 220       /* freedesktop interface has no hint parameter */
 221       if (g_str_equal (interface_name, "org.freedesktop.Application"))
 222         {
 223           g_variant_get (parameters, "(@as@a{sv})", &array, &platform_data);
 224           hint = "";
 225         }
 226       else
 227         g_variant_get (parameters, "(@as&s@a{sv})", &array, &hint, &platform_data);
 228
 229       n = g_variant_n_children (array);
 230       files = g_new (GFile *, n + 1);
 231
 232       for (i = 0; i < n; i++)
 233         {
 234           const gchar *uri;
 235
 236           g_variant_get_child (array, i, "&s", &uri);
 237           files[i] = g_file_new_for_uri (uri);
 238         }
 239       g_variant_unref (array);
 240       files[n] = NULL;
 241
 242       class->before_emit (impl->app, platform_data);
 243       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 244       class->after_emit (impl->app, platform_data);
 245
 246       g_variant_unref (platform_data);
 247
 248       for (i = 0; i < n; i++)
 249         g_object_unref (files[i]);
 250       g_free (files);
 251
 252       g_dbus_method_invocation_return_value (invocation, NULL);
 253     }
 254
 255   else if (strcmp (method_name, "CommandLine") == 0)
 256     {
 257       GApplicationFlags flags;
 258       GApplicationCommandLine *cmdline;
 259       GVariant *platform_data;
 260       int status;
 261
 262       flags = g_application_get_flags (impl->app);
 263       if ((flags & G_APPLICATION_HANDLES_COMMAND_LINE) == 0)
 264         {
 265           g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_NOT_SUPPORTED, "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   if (!app_class->dbus_register (impl->app,
 408                                  impl->session_bus,
 409                                  impl->object_path,
 410                                  error))
 411     return FALSE;
 412
 413   if (impl->bus_name == NULL)
 414     {
 415       /* If this is a non-unique application then it is sufficient to
 416        * have our object paths registered. We can return now.
 417        *
 418        * Note: non-unique applications always act as primary-instance.
 419        */
 420       impl->primary = TRUE;
 421       return TRUE;
 422     }
 423
 424   /* If this is a unique application then we need to attempt to own
 425    * the well-known name and fall back to remote mode (!is_primary)
 426    * in the case that we can't do that.
 427    */
 428   /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 429   reply = g_dbus_connection_call_sync (impl->session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",
 430                                        "org.freedesktop.DBus", "RequestName",
 431                                        g_variant_new ("(su)", impl->bus_name, 0x4), G_VARIANT_TYPE ("(u)"),
 432                                        0, -1, cancellable, error);
 433
 434   if (reply == NULL)
 435     return FALSE;
 436
 437   g_variant_get (reply, "(u)", &rval);
 438   g_variant_unref (reply);
 439
 440   /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 441   impl->primary = (rval != 3);
 442
 443   return TRUE;
 444 }
 445
 446 /* Stop doing the things that the primary instance does.
 447  *
 448  * This should be called if attempting to become the primary instance
 449  * failed (in order to clean up any partial success) and should also
 450  * be called when freeing the GApplication.
 451  *
 452  * It is safe to call this multiple times.
 453  */
 454 static void
 455 g_application_impl_stop_primary (GApplicationImpl *impl)
 456 {
 457   GApplicationClass *app_class = G_APPLICATION_GET_CLASS (impl->app);
 458
 459   app_class->dbus_unregister (impl->app,
 460                               impl->session_bus,
 461                               impl->object_path);
 462
 463   if (impl->object_id)
 464     {
 465       g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
 466       impl->object_id = 0;
 467     }
 468
 469   if (impl->fdo_object_id)
 470     {
 471       g_dbus_connection_unregister_object (impl->session_bus, impl->fdo_object_id);
 472       impl->fdo_object_id = 0;
 473     }
 474
 475   if (impl->actions_id)
 476     {
 477       g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
 478       impl->actions_id = 0;
 479     }
 480
 481   if (impl->primary && impl->bus_name)
 482     {
 483       g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
 484                               "/org/freedesktop/DBus", "org.freedesktop.DBus",
 485                               "ReleaseName", g_variant_new ("(s)", impl->bus_name),
 486                               NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 487       impl->primary = FALSE;
 488     }
 489 }
 490
 491 void
 492 g_application_impl_set_busy_state (GApplicationImpl *impl,
 493                                    gboolean          busy)
 494 {
 495   if (impl->busy != busy)
 496     {
 497       impl->busy = busy;
 498       send_property_change (impl);
 499     }
 500 }
 501
 502 void
 503 g_application_impl_destroy (GApplicationImpl *impl)
 504 {
 505   g_application_impl_stop_primary (impl);
 506
 507   if (impl->session_bus)
 508     g_object_unref (impl->session_bus);
 509
 510   g_free (impl->object_path);
 511
 512   g_slice_free (GApplicationImpl, impl);
 513 }
 514
 515 GApplicationImpl *
 516 g_application_impl_register (GApplication        *application,
 517                              const gchar         *appid,
 518                              GApplicationFlags    flags,
 519                              GActionGroup        *exported_actions,
 520                              GRemoteActionGroup **remote_actions,
 521                              GCancellable        *cancellable,
 522                              GError             **error)
 523 {
 524   GDBusActionGroup *actions;
 525   GApplicationImpl *impl;
 526
 527   g_assert ((flags & G_APPLICATION_NON_UNIQUE) || appid != NULL);
 528
 529   impl = g_slice_new0 (GApplicationImpl);
 530
 531   impl->app = application;
 532   impl->exported_actions = exported_actions;
 533
 534   /* non-unique applications do not attempt to acquire a bus name */
 535   if (~flags & G_APPLICATION_NON_UNIQUE)
 536     impl->bus_name = appid;
 537
 538   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 539
 540   if (impl->session_bus == NULL)
 541     {
 542       /* If we can't connect to the session bus, proceed as a normal
 543        * non-unique application.
 544        */
 545       *remote_actions = NULL;
 546       return impl;
 547     }
 548
 549   impl->object_path = application_path_from_appid (appid);
 550
 551   /* Only try to be the primary instance if
 552    * G_APPLICATION_IS_LAUNCHER was not specified.
 553    */
 554   if (~flags & G_APPLICATION_IS_LAUNCHER)
 555     {
 556       if (!g_application_impl_attempt_primary (impl, cancellable, error))
 557         {
 558           g_application_impl_destroy (impl);
 559           return NULL;
 560         }
 561
 562       if (impl->primary)
 563         return impl;
 564
 565       /* We didn't make it.  Drop our service-side stuff. */
 566       g_application_impl_stop_primary (impl);
 567
 568       if (flags & G_APPLICATION_IS_SERVICE)
 569         {
 570           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 571                        "Unable to acquire bus name '%s'", appid);
 572           g_application_impl_destroy (impl);
 573
 574           return NULL;
 575         }
 576     }
 577
 578   /* We are non-primary.  Try to get the primary's list of actions.
 579    * This also serves as a mechanism to ensure that the primary exists
 580    * (ie: DBus service files installed correctly, etc).
 581    */
 582   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
 583   if (!g_dbus_action_group_sync (actions, cancellable, error))
 584     {
 585       /* The primary appears not to exist.  Fail the registration. */
 586       g_application_impl_destroy (impl);
 587       g_object_unref (actions);
 588
 589       return NULL;
 590     }
 591
 592   *remote_actions = G_REMOTE_ACTION_GROUP (actions);
 593
 594   return impl;
 595 }
 596
 597 void
 598 g_application_impl_activate (GApplicationImpl *impl,
 599                              GVariant         *platform_data)
 600 {
 601   g_dbus_connection_call (impl->session_bus,
 602                           impl->bus_name,
 603                           impl->object_path,
 604                           "org.gtk.Application",
 605                           "Activate",
 606                           g_variant_new ("(@a{sv})", platform_data),
 607                           NULL, 0, -1, NULL, NULL, NULL);
 608 }
 609
 610 void
 611 g_application_impl_open (GApplicationImpl  *impl,
 612                          GFile            **files,
 613                          gint               n_files,
 614                          const gchar       *hint,
 615                          GVariant          *platform_data)
 616 {
 617   GVariantBuilder builder;
 618   gint i;
 619
 620   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 621   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 622   for (i = 0; i < n_files; i++)
 623     {
 624       gchar *uri = g_file_get_uri (files[i]);
 625       g_variant_builder_add (&builder, "s", uri);
 626       g_free (uri);
 627     }
 628   g_variant_builder_close (&builder);
 629   g_variant_builder_add (&builder, "s", hint);
 630   g_variant_builder_add_value (&builder, platform_data);
 631
 632   g_dbus_connection_call (impl->session_bus,
 633                           impl->bus_name,
 634                           impl->object_path,
 635                           "org.gtk.Application",
 636                           "Open",
 637                           g_variant_builder_end (&builder),
 638                           NULL, 0, -1, NULL, NULL, NULL);
 639 }
 640
 641 static void
 642 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 643                                         const gchar           *sender,
 644                                         const gchar           *object_path,
 645                                         const gchar           *interface_name,
 646                                         const gchar           *method_name,
 647                                         GVariant              *parameters,
 648                                         GDBusMethodInvocation *invocation,
 649                                         gpointer               user_data)
 650 {
 651   const gchar *message;
 652
 653   g_variant_get_child (parameters, 0, "&s", &message);
 654
 655   if (strcmp (method_name, "Print") == 0)
 656     g_print ("%s", message);
 657   else if (strcmp (method_name, "PrintError") == 0)
 658     g_printerr ("%s", message);
 659   else
 660     g_assert_not_reached ();
 661
 662   g_dbus_method_invocation_return_value (invocation, NULL);
 663 }
 664
 665 typedef struct
 666 {
 667   GMainLoop *loop;
 668   int status;
 669 } CommandLineData;
 670
 671 static void
 672 g_application_impl_cmdline_done (GObject      *source,
 673                                  GAsyncResult *result,
 674                                  gpointer      user_data)
 675 {
 676   CommandLineData *data = user_data;
 677   GError *error = NULL;
 678   GVariant *reply;
 679
 680 #ifdef G_OS_UNIX
 681   reply = g_dbus_connection_call_with_unix_fd_list_finish (G_DBUS_CONNECTION (source), NULL, result, &error);
 682 #else
 683   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source), result, &error);
 684 #endif
 685
 686
 687   if (reply != NULL)
 688     {
 689       g_variant_get (reply, "(i)", &data->status);
 690       g_variant_unref (reply);
 691     }
 692
 693   else
 694     {
 695       g_printerr ("%s\n", error->message);
 696       g_error_free (error);
 697       data->status = 1;
 698     }
 699
 700   g_main_loop_quit (data->loop);
 701 }
 702
 703 int
 704 g_application_impl_command_line (GApplicationImpl  *impl,
 705                                  gchar            **arguments,
 706                                  GVariant          *platform_data)
 707 {
 708   const static GDBusInterfaceVTable vtable = {
 709     g_application_impl_cmdline_method_call
 710   };
 711   const gchar *object_path = "/org/gtk/Application/CommandLine";
 712   GMainContext *context;
 713   CommandLineData data;
 714   guint object_id;
 715
 716   context = g_main_context_new ();
 717   data.loop = g_main_loop_new (context, FALSE);
 718   g_main_context_push_thread_default (context);
 719
 720   if (org_gtk_private_CommandLine == NULL)
 721     {
 722       GError *error = NULL;
 723       GDBusNodeInfo *info;
 724
 725       info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
 726       if G_UNLIKELY (info == NULL)
 727         g_error ("%s", error->message);
 728       org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
 729       g_assert (org_gtk_private_CommandLine != NULL);
 730       g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 731       g_dbus_node_info_unref (info);
 732     }
 733
 734   object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
 735                                                  org_gtk_private_CommandLine,
 736                                                  &vtable, &data, NULL, NULL);
 737   /* In theory we should try other paths... */
 738   g_assert (object_id != 0);
 739
 740 #ifdef G_OS_UNIX
 741   {
 742     GError *error = NULL;
 743     GUnixFDList *fd_list;
 744
 745     /* send along the stdin in case
 746      * g_application_command_line_get_stdin_data() is called
 747      */
 748     fd_list = g_unix_fd_list_new ();
 749     g_unix_fd_list_append (fd_list, 0, &error);
 750     g_assert_no_error (error);
 751
 752     g_dbus_connection_call_with_unix_fd_list (impl->session_bus, impl->bus_name, impl->object_path,
 753                                               "org.gtk.Application", "CommandLine",
 754                                               g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
 755                                               G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, fd_list, NULL,
 756                                               g_application_impl_cmdline_done, &data);
 757   }
 758 #else
 759   g_dbus_connection_call (impl->session_bus, impl->bus_name, impl->object_path,
 760                           "org.gtk.Application", "CommandLine",
 761                           g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
 762                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 763                           g_application_impl_cmdline_done, &data);
 764 #endif
 765
 766   g_main_loop_run (data.loop);
 767
 768   g_main_context_pop_thread_default (context);
 769   g_main_context_unref (context);
 770   g_main_loop_unref (data.loop);
 771
 772   return data.status;
 773 }
 774
 775 void
 776 g_application_impl_flush (GApplicationImpl *impl)
 777 {
 778   if (impl->session_bus)
 779     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 780 }
 781
 782 GDBusConnection *
 783 g_application_impl_get_dbus_connection (GApplicationImpl *impl)
 784 {
 785   return impl->session_bus;
 786 }
 787
 788 const gchar *
 789 g_application_impl_get_dbus_object_path (GApplicationImpl *impl)
 790 {
 791   return impl->object_path;
 792 }
 793
 794 /* GDBusCommandLine implementation {{{1 */
 795
 796 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 797 static GType g_dbus_command_line_get_type (void);
 798 typedef struct
 799 {
 800   GApplicationCommandLine  parent_instance;
 801   GDBusMethodInvocation   *invocation;
 802
 803   GDBusConnection *connection;
 804   const gchar     *bus_name;
 805   const gchar     *object_path;
 806 } GDBusCommandLine;
 807
 808
 809 G_DEFINE_TYPE (GDBusCommandLine,
 810                g_dbus_command_line,
 811                G_TYPE_APPLICATION_COMMAND_LINE)
 812
 813 static void
 814 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 815                                    const gchar             *message)
 816 {
 817   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 818
 819   g_dbus_connection_call (gdbcl->connection,
 820                           gdbcl->bus_name,
 821                           gdbcl->object_path,
 822                           "org.gtk.private.CommandLine", "Print",
 823                           g_variant_new ("(s)", message),
 824                           NULL, 0, -1, NULL, NULL, NULL);
 825 }
 826
 827 static void
 828 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 829                                       const gchar             *message)
 830 {
 831   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 832
 833   g_dbus_connection_call (gdbcl->connection,
 834                           gdbcl->bus_name,
 835                           gdbcl->object_path,
 836                           "org.gtk.private.CommandLine", "PrintError",
 837                           g_variant_new ("(s)", message),
 838                           NULL, 0, -1, NULL, NULL, NULL);
 839 }
 840
 841 static GInputStream *
 842 g_dbus_command_line_get_stdin (GApplicationCommandLine *cmdline)
 843 {
 844 #ifdef G_OS_UNIX
 845   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 846   GInputStream *result = NULL;
 847   GDBusMessage *message;
 848   GUnixFDList *fd_list;
 849
 850   message = g_dbus_method_invocation_get_message (gdbcl->invocation);
 851   fd_list = g_dbus_message_get_unix_fd_list (message);
 852
 853   if (fd_list && g_unix_fd_list_get_length (fd_list))
 854     {
 855       gint *fds, n_fds, i;
 856
 857       fds = g_unix_fd_list_steal_fds (fd_list, &n_fds);
 858       result = g_unix_input_stream_new (fds[0], TRUE);
 859       for (i = 1; i < n_fds; i++)
 860         (void) g_close (fds[i], NULL);
 861       g_free (fds);
 862     }
 863
 864   return result;
 865 #else
 866   return NULL;
 867 #endif
 868 }
 869
 870 static void
 871 g_dbus_command_line_finalize (GObject *object)
 872 {
 873   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 874   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 875   gint status;
 876
 877   status = g_application_command_line_get_exit_status (cmdline);
 878
 879   g_dbus_method_invocation_return_value (gdbcl->invocation,
 880                                          g_variant_new ("(i)", status));
 881   g_object_unref (gdbcl->invocation);
 882
 883   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 884     ->finalize (object);
 885 }
 886
 887 static void
 888 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 889 {
 890 }
 891
 892 static void
 893 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 894 {
 895   GObjectClass *object_class = G_OBJECT_CLASS (class);
 896
 897   object_class->finalize = g_dbus_command_line_finalize;
 898   class->printerr_literal = g_dbus_command_line_printerr_literal;
 899   class->print_literal = g_dbus_command_line_print_literal;
 900   class->get_stdin = g_dbus_command_line_get_stdin;
 901 }
 902
 903 static GApplicationCommandLine *
 904 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 905 {
 906   GDBusCommandLine *gdbcl;
 907   GVariant *args;
 908   GVariant *arguments, *platform_data;
 909
 910   args = g_dbus_method_invocation_get_parameters (invocation);
 911
 912   arguments = g_variant_get_child_value (args, 1);
 913   platform_data = g_variant_get_child_value (args, 2);
 914   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 915                         "arguments", arguments,
 916                         "platform-data", platform_data,
 917                         NULL);
 918   g_variant_unref (arguments);
 919   g_variant_unref (platform_data);
 920
 921   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 922   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 923   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 924   gdbcl->invocation = g_object_ref (invocation);
 925
 926   return G_APPLICATION_COMMAND_LINE (gdbcl);
 927 }
 928
 929 /* Epilogue {{{1 */
 930
 931 /* vim:set foldmethod=marker: */