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 "gapplicationimpl.h"
  23
  24 #include "gactiongroup.h"
  25 #include "gactiongroupexporter.h"
  26 #include "gremoteactiongroup.h"
  27 #include "gdbusactiongroup.h"
  28 #include "gapplication.h"
  29 #include "gfile.h"
  30 #include "gdbusconnection.h"
  31 #include "gdbusintrospection.h"
  32 #include "gdbuserror.h"
  33
  34 #include <string.h>
  35 #include <stdio.h>
  36
  37 #include "gapplicationcommandline.h"
  38 #include "gdbusmethodinvocation.h"
  39
  40 G_GNUC_INTERNAL gboolean
  41 g_dbus_action_group_sync (GDBusActionGroup  *group,
  42                           GCancellable      *cancellable,
  43                           GError           **error);
  44
  45
  46 /* DBus Interface definition {{{1 */
  47
  48 /* For documentation of these interfaces, see
  49  * http://live.gnome.org/GTK+/GApplication-dbus-apis
  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   "  </interface>"
  69   "</node>";
  70
  71 static GDBusInterfaceInfo *org_gtk_Application;
  72
  73 static const gchar org_gtk_private_CommandLine_xml[] =
  74   "<node>"
  75   "  <interface name='org.gtk.private.CommandLine'>"
  76   "    <method name='Print'>"
  77   "      <arg type='s' name='message' direction='in'/>"
  78   "    </method>"
  79   "    <method name='PrintError'>"
  80   "      <arg type='s' name='message' direction='in'/>"
  81   "    </method>"
  82   "  </interface>"
  83   "</node>";
  84
  85 static GDBusInterfaceInfo *org_gtk_private_CommandLine;
  86
  87 /* GApplication implementation {{{1 */
  88 struct _GApplicationImpl
  89 {
  90   GDBusConnection *session_bus;
  91   GActionGroup    *exported_actions;
  92   const gchar     *bus_name;
  93
  94   gchar           *object_path;
  95   guint            object_id;
  96   guint            actions_id;
  97
  98   gboolean         properties_live;
  99   gboolean         primary;
 100   gpointer         app;
 101 };
 102
 103
 104 static GApplicationCommandLine *
 105 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
 106
 107
 108 static void
 109 g_application_impl_method_call (GDBusConnection       *connection,
 110                                 const gchar           *sender,
 111                                 const gchar           *object_path,
 112                                 const gchar           *interface_name,
 113                                 const gchar           *method_name,
 114                                 GVariant              *parameters,
 115                                 GDBusMethodInvocation *invocation,
 116                                 gpointer               user_data)
 117 {
 118   GApplicationImpl *impl = user_data;
 119   GApplicationClass *class;
 120
 121   class = G_APPLICATION_GET_CLASS (impl->app);
 122
 123   if (strcmp (method_name, "Activate") == 0)
 124     {
 125       GVariant *platform_data;
 126
 127       g_variant_get (parameters, "(@a{sv})", &platform_data);
 128       class->before_emit (impl->app, platform_data);
 129       g_signal_emit_by_name (impl->app, "activate");
 130       class->after_emit (impl->app, platform_data);
 131       g_variant_unref (platform_data);
 132
 133       g_dbus_method_invocation_return_value (invocation, NULL);
 134     }
 135
 136   else if (strcmp (method_name, "Open") == 0)
 137     {
 138       GVariant *platform_data;
 139       const gchar *hint;
 140       GVariant *array;
 141       GFile **files;
 142       gint n, i;
 143
 144       g_variant_get (parameters, "(@ass@a{sv})",
 145                      &array, &hint, &platform_data);
 146
 147       n = g_variant_n_children (array);
 148       files = g_new (GFile *, n + 1);
 149
 150       for (i = 0; i < n; i++)
 151         {
 152           const gchar *uri;
 153
 154           g_variant_get_child (array, i, "&s", &uri);
 155           files[i] = g_file_new_for_uri (uri);
 156         }
 157       g_variant_unref (array);
 158       files[n] = NULL;
 159
 160       class->before_emit (impl->app, platform_data);
 161       g_signal_emit_by_name (impl->app, "open", files, n, hint);
 162       class->after_emit (impl->app, platform_data);
 163
 164       g_variant_unref (platform_data);
 165
 166       for (i = 0; i < n; i++)
 167         g_object_unref (files[i]);
 168       g_free (files);
 169
 170       g_dbus_method_invocation_return_value (invocation, NULL);
 171     }
 172
 173   else if (strcmp (method_name, "CommandLine") == 0)
 174     {
 175       GApplicationCommandLine *cmdline;
 176       GVariant *platform_data;
 177       int status;
 178
 179       cmdline = g_dbus_command_line_new (invocation);
 180       platform_data = g_variant_get_child_value (parameters, 2);
 181       class->before_emit (impl->app, platform_data);
 182       g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
 183       g_application_command_line_set_exit_status (cmdline, status);
 184       class->after_emit (impl->app, platform_data);
 185       g_variant_unref (platform_data);
 186       g_object_unref (cmdline);
 187     }
 188   else
 189     g_assert_not_reached ();
 190 }
 191
 192 static gchar *
 193 application_path_from_appid (const gchar *appid)
 194 {
 195   gchar *appid_path, *iter;
 196
 197   appid_path = g_strconcat ("/", appid, NULL);
 198   for (iter = appid_path; *iter; iter++)
 199     {
 200       if (*iter == '.')
 201         *iter = '/';
 202
 203       if (*iter == '-')
 204         *iter = '_';
 205     }
 206
 207   return appid_path;
 208 }
 209
 210 /* Attempt to become the primary instance.
 211  *
 212  * Returns %TRUE if everything went OK, regardless of if we became the
 213  * primary instance or not.  %FALSE is reserved for when something went
 214  * seriously wrong (and @error will be set too, in that case).
 215  *
 216  * After a %TRUE return, impl->primary will be TRUE if we were
 217  * successful.
 218  */
 219 static gboolean
 220 g_application_impl_attempt_primary (GApplicationImpl  *impl,
 221                                     gboolean           non_unique,
 222                                     GCancellable      *cancellable,
 223                                     GError           **error)
 224 {
 225   const static GDBusInterfaceVTable vtable = {
 226     g_application_impl_method_call,
 227   };
 228   GVariant *reply;
 229   guint32 rval;
 230
 231   if (org_gtk_Application == NULL)
 232     {
 233       GError *error = NULL;
 234       GDBusNodeInfo *info;
 235
 236       info = g_dbus_node_info_new_for_xml (org_gtk_Application_xml, &error);
 237       if G_UNLIKELY (info == NULL)
 238         g_error ("%s", error->message);
 239       org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
 240       g_assert (org_gtk_Application != NULL);
 241       g_dbus_interface_info_ref (org_gtk_Application);
 242       g_dbus_node_info_unref (info);
 243     }
 244
 245   /* We could possibly have been D-Bus activated as a result of incoming
 246    * requests on either the application or actiongroup interfaces.
 247    * Because of how GDBus dispatches messages, we need to ensure that
 248    * both of those things are registered before we attempt to request
 249    * our name.
 250    *
 251    * The action group need not be populated yet, as long as it happens
 252    * before we return to the mainloop.  The reason for that is because
 253    * GDBus does the check to make sure the object exists from the worker
 254    * thread but doesn't actually dispatch the action invocation until we
 255    * hit the mainloop in this thread.  There is also no danger of
 256    * receiving 'activate' or 'open' signals until after 'startup' runs,
 257    * for the same reason.
 258    */
 259   impl->object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
 260                                                        org_gtk_Application, &vtable, impl, NULL, error);
 261
 262   if (impl->object_id == 0)
 263     return FALSE;
 264
 265   impl->actions_id = g_dbus_connection_export_action_group (impl->session_bus, impl->object_path,
 266                                                             impl->exported_actions, error);
 267
 268   if (impl->actions_id == 0)
 269     return FALSE;
 270
 271   if (non_unique)
 272     {
 273       /* If this is a non-unique application then it is sufficient to
 274        * have our object paths registered. We can return now.
 275        *
 276        * Note: non-unique applications always act as primary-instance.
 277        */
 278       impl->primary = TRUE;
 279       return TRUE;
 280     }
 281
 282   /* If this is a unique application then we need to attempt to own
 283    * the well-known name and fall back to remote mode (!is_primary)
 284    * in the case that we can't do that.
 285    */
 286   /* DBUS_NAME_FLAG_DO_NOT_QUEUE: 0x4 */
 287   reply = g_dbus_connection_call_sync (impl->session_bus, "org.freedesktop.DBus", "/org/freedesktop/DBus",
 288                                        "org.freedesktop.DBus", "RequestName",
 289                                        g_variant_new ("(su)", impl->bus_name, 0x4), G_VARIANT_TYPE ("(u)"),
 290                                        0, -1, cancellable, error);
 291
 292   if (reply == NULL)
 293     return FALSE;
 294
 295   g_variant_get (reply, "(u)", &rval);
 296   g_variant_unref (reply);
 297
 298   /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
 299   impl->primary = (rval != 3);
 300
 301   return TRUE;
 302 }
 303
 304 /* Stop doing the things that the primary instance does.
 305  *
 306  * This should be called if attempting to become the primary instance
 307  * failed (in order to clean up any partial success) and should also
 308  * be called when freeing the GApplication.
 309  *
 310  * It is safe to call this multiple times.
 311  */
 312 static void
 313 g_application_impl_stop_primary (GApplicationImpl *impl)
 314 {
 315   if (impl->object_id)
 316     {
 317       g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
 318       impl->object_id = 0;
 319     }
 320
 321   if (impl->actions_id)
 322     {
 323       g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
 324       impl->actions_id = 0;
 325     }
 326
 327   if (impl->primary)
 328     {
 329       g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
 330                               "/org/freedesktop/DBus", "org.freedesktop.DBus",
 331                               "ReleaseName", g_variant_new ("(s)", impl->bus_name),
 332                               NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 333       impl->primary = FALSE;
 334     }
 335 }
 336
 337 void
 338 g_application_impl_destroy (GApplicationImpl *impl)
 339 {
 340   g_application_impl_stop_primary (impl);
 341
 342   if (impl->session_bus)
 343     g_object_unref (impl->session_bus);
 344
 345   g_free (impl->object_path);
 346
 347   g_slice_free (GApplicationImpl, impl);
 348 }
 349
 350 GApplicationImpl *
 351 g_application_impl_register (GApplication        *application,
 352                              const gchar         *appid,
 353                              GApplicationFlags    flags,
 354                              GActionGroup        *exported_actions,
 355                              GRemoteActionGroup **remote_actions,
 356                              GCancellable        *cancellable,
 357                              GError             **error)
 358 {
 359   GDBusActionGroup *actions;
 360   GApplicationImpl *impl;
 361
 362   impl = g_slice_new0 (GApplicationImpl);
 363
 364   impl->app = application;
 365   impl->exported_actions = exported_actions;
 366   impl->bus_name = appid;
 367
 368   impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
 369
 370   if (impl->session_bus == NULL)
 371     {
 372       /* If we can't connect to the session bus, proceed as a normal
 373        * non-unique application.
 374        */
 375       *remote_actions = NULL;
 376       return impl;
 377     }
 378
 379   impl->object_path = application_path_from_appid (appid);
 380
 381   /* Only try to be the primary instance if
 382    * G_APPLICATION_IS_LAUNCHER was not specified.
 383    */
 384   if (~flags & G_APPLICATION_IS_LAUNCHER)
 385     {
 386       gboolean non_unique;
 387
 388       non_unique = (flags & G_APPLICATION_NON_UNIQUE) != 0;
 389
 390       if (!g_application_impl_attempt_primary (impl, non_unique, cancellable, error))
 391         {
 392           g_application_impl_destroy (impl);
 393           return NULL;
 394         }
 395
 396       if (impl->primary)
 397         return impl;
 398
 399       /* We didn't make it.  Drop our service-side stuff. */
 400       g_application_impl_stop_primary (impl);
 401
 402       if (flags & G_APPLICATION_IS_SERVICE)
 403         {
 404           g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
 405                        "Unable to acquire bus name `%s'", appid);
 406           g_application_impl_destroy (impl);
 407
 408           return NULL;
 409         }
 410     }
 411
 412   /* We are non-primary.  Try to get the primary's list of actions.
 413    * This also serves as a mechanism to ensure that the primary exists
 414    * (ie: DBus service files installed correctly, etc).
 415    */
 416   actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
 417   if (!g_dbus_action_group_sync (actions, cancellable, error))
 418     {
 419       /* The primary appears not to exist.  Fail the registration. */
 420       g_application_impl_destroy (impl);
 421       g_object_unref (actions);
 422
 423       return NULL;
 424     }
 425
 426   *remote_actions = G_REMOTE_ACTION_GROUP (actions);
 427
 428   return impl;
 429 }
 430
 431 void
 432 g_application_impl_activate (GApplicationImpl *impl,
 433                              GVariant         *platform_data)
 434 {
 435   g_dbus_connection_call (impl->session_bus,
 436                           impl->bus_name,
 437                           impl->object_path,
 438                           "org.gtk.Application",
 439                           "Activate",
 440                           g_variant_new ("(@a{sv})", platform_data),
 441                           NULL, 0, -1, NULL, NULL, NULL);
 442 }
 443
 444 void
 445 g_application_impl_open (GApplicationImpl  *impl,
 446                          GFile            **files,
 447                          gint               n_files,
 448                          const gchar       *hint,
 449                          GVariant          *platform_data)
 450 {
 451   GVariantBuilder builder;
 452   gint i;
 453
 454   g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
 455   g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
 456   for (i = 0; i < n_files; i++)
 457     {
 458       gchar *uri = g_file_get_uri (files[i]);
 459       g_variant_builder_add (&builder, "s", uri);
 460       g_free (uri);
 461     }
 462   g_variant_builder_close (&builder);
 463   g_variant_builder_add (&builder, "s", hint);
 464   g_variant_builder_add_value (&builder, platform_data);
 465
 466   g_dbus_connection_call (impl->session_bus,
 467                           impl->bus_name,
 468                           impl->object_path,
 469                           "org.gtk.Application",
 470                           "Open",
 471                           g_variant_builder_end (&builder),
 472                           NULL, 0, -1, NULL, NULL, NULL);
 473 }
 474
 475 static void
 476 g_application_impl_cmdline_method_call (GDBusConnection       *connection,
 477                                         const gchar           *sender,
 478                                         const gchar           *object_path,
 479                                         const gchar           *interface_name,
 480                                         const gchar           *method_name,
 481                                         GVariant              *parameters,
 482                                         GDBusMethodInvocation *invocation,
 483                                         gpointer               user_data)
 484 {
 485   const gchar *message;
 486
 487   g_variant_get_child (parameters, 0, "&s", &message);
 488
 489   if (strcmp (method_name, "Print") == 0)
 490     g_print ("%s", message);
 491   else if (strcmp (method_name, "PrintError") == 0)
 492     g_printerr ("%s", message);
 493   else
 494     g_assert_not_reached ();
 495
 496   g_dbus_method_invocation_return_value (invocation, NULL);
 497 }
 498
 499 typedef struct
 500 {
 501   GMainLoop *loop;
 502   int status;
 503 } CommandLineData;
 504
 505 static void
 506 g_application_impl_cmdline_done (GObject      *source,
 507                                  GAsyncResult *result,
 508                                  gpointer      user_data)
 509 {
 510   CommandLineData *data = user_data;
 511   GError *error = NULL;
 512   GVariant *reply;
 513
 514   reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source),
 515                                          result, &error);
 516
 517   if (reply != NULL)
 518     {
 519       g_variant_get (reply, "(i)", &data->status);
 520       g_variant_unref (reply);
 521     }
 522
 523   else
 524     {
 525       g_printerr ("%s\n", error->message);
 526       g_error_free (error);
 527       data->status = 1;
 528     }
 529
 530   g_main_loop_quit (data->loop);
 531 }
 532
 533 int
 534 g_application_impl_command_line (GApplicationImpl  *impl,
 535                                  gchar            **arguments,
 536                                  GVariant          *platform_data)
 537 {
 538   const static GDBusInterfaceVTable vtable = {
 539     g_application_impl_cmdline_method_call
 540   };
 541   const gchar *object_path = "/org/gtk/Application/CommandLine";
 542   GMainContext *context;
 543   CommandLineData data;
 544   guint object_id;
 545
 546   context = g_main_context_new ();
 547   data.loop = g_main_loop_new (context, FALSE);
 548   g_main_context_push_thread_default (context);
 549
 550   if (org_gtk_private_CommandLine == NULL)
 551     {
 552       GError *error = NULL;
 553       GDBusNodeInfo *info;
 554
 555       info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
 556       if G_UNLIKELY (info == NULL)
 557         g_error ("%s", error->message);
 558       org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
 559       g_assert (org_gtk_private_CommandLine != NULL);
 560       g_dbus_interface_info_ref (org_gtk_private_CommandLine);
 561       g_dbus_node_info_unref (info);
 562     }
 563
 564   object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
 565                                                  org_gtk_private_CommandLine,
 566                                                  &vtable, &data, NULL, NULL);
 567   /* In theory we should try other paths... */
 568   g_assert (object_id != 0);
 569
 570   g_dbus_connection_call (impl->session_bus,
 571                           impl->bus_name,
 572                           impl->object_path,
 573                           "org.gtk.Application",
 574                           "CommandLine",
 575                           g_variant_new ("(o^aay@a{sv})", object_path,
 576                                          arguments, platform_data),
 577                           G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
 578                           g_application_impl_cmdline_done, &data);
 579
 580   g_main_loop_run (data.loop);
 581
 582   g_main_context_pop_thread_default (context);
 583   g_main_context_unref (context);
 584   g_main_loop_unref (data.loop);
 585
 586   return data.status;
 587 }
 588
 589 void
 590 g_application_impl_flush (GApplicationImpl *impl)
 591 {
 592   if (impl->session_bus)
 593     g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
 594 }
 595
 596
 597 /* GDBusCommandLine implementation {{{1 */
 598
 599 typedef GApplicationCommandLineClass GDBusCommandLineClass;
 600 static GType g_dbus_command_line_get_type (void);
 601 typedef struct
 602 {
 603   GApplicationCommandLine  parent_instance;
 604   GDBusMethodInvocation   *invocation;
 605
 606   GDBusConnection *connection;
 607   const gchar     *bus_name;
 608   const gchar     *object_path;
 609 } GDBusCommandLine;
 610
 611
 612 G_DEFINE_TYPE (GDBusCommandLine,
 613                g_dbus_command_line,
 614                G_TYPE_APPLICATION_COMMAND_LINE)
 615
 616 static void
 617 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
 618                                    const gchar             *message)
 619 {
 620   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 621
 622   g_dbus_connection_call (gdbcl->connection,
 623                           gdbcl->bus_name,
 624                           gdbcl->object_path,
 625                           "org.gtk.private.CommandLine", "Print",
 626                           g_variant_new ("(s)", message),
 627                           NULL, 0, -1, NULL, NULL, NULL);
 628 }
 629
 630 static void
 631 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
 632                                       const gchar             *message)
 633 {
 634   GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
 635
 636   g_dbus_connection_call (gdbcl->connection,
 637                           gdbcl->bus_name,
 638                           gdbcl->object_path,
 639                           "org.gtk.private.CommandLine", "PrintError",
 640                           g_variant_new ("(s)", message),
 641                           NULL, 0, -1, NULL, NULL, NULL);
 642 }
 643
 644 static void
 645 g_dbus_command_line_finalize (GObject *object)
 646 {
 647   GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
 648   GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
 649   gint status;
 650
 651   status = g_application_command_line_get_exit_status (cmdline);
 652
 653   g_dbus_method_invocation_return_value (gdbcl->invocation,
 654                                          g_variant_new ("(i)", status));
 655   g_object_unref (gdbcl->invocation);
 656
 657   G_OBJECT_CLASS (g_dbus_command_line_parent_class)
 658     ->finalize (object);
 659 }
 660
 661 static void
 662 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
 663 {
 664 }
 665
 666 static void
 667 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
 668 {
 669   GObjectClass *object_class = G_OBJECT_CLASS (class);
 670
 671   object_class->finalize = g_dbus_command_line_finalize;
 672   class->printerr_literal = g_dbus_command_line_printerr_literal;
 673   class->print_literal = g_dbus_command_line_print_literal;
 674 }
 675
 676 static GApplicationCommandLine *
 677 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
 678 {
 679   GDBusCommandLine *gdbcl;
 680   GVariant *args;
 681
 682   args = g_dbus_method_invocation_get_parameters (invocation);
 683
 684   gdbcl = g_object_new (g_dbus_command_line_get_type (),
 685                         "arguments", g_variant_get_child_value (args, 1),
 686                         "platform-data", g_variant_get_child_value (args, 2),
 687                         NULL);
 688   gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
 689   gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
 690   g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
 691   gdbcl->invocation = g_object_ref (invocation);
 692
 693   return G_APPLICATION_COMMAND_LINE (gdbcl);
 694 }
 695
 696 /* Epilogue {{{1 */
 697
 698 /* vim:set foldmethod=marker: */