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 /* D-Bus 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 guint name_lost_signal;
115
116 gchar *object_path;
117 guint object_id;
118 guint fdo_object_id;
119 guint actions_id;
120
121 gboolean properties_live;
122 gboolean primary;
123 gboolean busy;
124 gboolean registered;
125 GApplication *app;
126 };
127
128
129 static GApplicationCommandLine *
130 g_dbus_command_line_new (GDBusMethodInvocation *invocation);
131
132 static GVariant *
g_application_impl_get_property(GDBusConnection * connection,const gchar * sender,const gchar * object_path,const gchar * interface_name,const gchar * property_name,GError ** error,gpointer user_data)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
send_property_change(GApplicationImpl * impl)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
g_application_impl_method_call(GDBusConnection * connection,const gchar * sender,const gchar * object_path,const gchar * interface_name,const gchar * method_name,GVariant * parameters,GDBusMethodInvocation * invocation,gpointer user_data)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,
266 "Application does not handle command line arguments");
267 return;
268 }
269
270 /* Only on the GtkApplication interface */
271
272 cmdline = g_dbus_command_line_new (invocation);
273 platform_data = g_variant_get_child_value (parameters, 2);
274 class->before_emit (impl->app, platform_data);
275 g_signal_emit_by_name (impl->app, "command-line", cmdline, &status);
276 g_application_command_line_set_exit_status (cmdline, status);
277 class->after_emit (impl->app, platform_data);
278 g_variant_unref (platform_data);
279 g_object_unref (cmdline);
280 }
281 else if (g_str_equal (method_name, "ActivateAction"))
282 {
283 GVariant *parameter = NULL;
284 GVariant *platform_data;
285 GVariantIter *iter;
286 const gchar *name;
287
288 /* Only on the freedesktop interface */
289
290 g_variant_get (parameters, "(&sav@a{sv})", &name, &iter, &platform_data);
291 g_variant_iter_next (iter, "v", ¶meter);
292 g_variant_iter_free (iter);
293
294 class->before_emit (impl->app, platform_data);
295 g_action_group_activate_action (impl->exported_actions, name, parameter);
296 class->after_emit (impl->app, platform_data);
297
298 if (parameter)
299 g_variant_unref (parameter);
300
301 g_variant_unref (platform_data);
302
303 g_dbus_method_invocation_return_value (invocation, NULL);
304 }
305 else
306 g_assert_not_reached ();
307 }
308
309 static gchar *
application_path_from_appid(const gchar * appid)310 application_path_from_appid (const gchar *appid)
311 {
312 gchar *appid_path, *iter;
313
314 if (appid == NULL)
315 /* this is a private implementation detail */
316 return g_strdup ("/org/gtk/Application/anonymous");
317
318 appid_path = g_strconcat ("/", appid, NULL);
319 for (iter = appid_path; *iter; iter++)
320 {
321 if (*iter == '.')
322 *iter = '/';
323
324 if (*iter == '-')
325 *iter = '_';
326 }
327
328 return appid_path;
329 }
330
331 static void g_application_impl_stop_primary (GApplicationImpl *impl);
332
333 static void
name_lost(GDBusConnection * bus,const char * sender_name,const char * object_path,const char * interface_name,const char * signal_name,GVariant * parameters,gpointer user_data)334 name_lost (GDBusConnection *bus,
335 const char *sender_name,
336 const char *object_path,
337 const char *interface_name,
338 const char *signal_name,
339 GVariant *parameters,
340 gpointer user_data)
341 {
342 GApplicationImpl *impl = user_data;
343 gboolean handled;
344
345 impl->primary = FALSE;
346 g_application_impl_stop_primary (impl);
347 g_signal_emit_by_name (impl->app, "name-lost", &handled);
348 }
349
350 /* Attempt to become the primary instance.
351 *
352 * Returns %TRUE if everything went OK, regardless of if we became the
353 * primary instance or not. %FALSE is reserved for when something went
354 * seriously wrong (and @error will be set too, in that case).
355 *
356 * After a %TRUE return, impl->primary will be TRUE if we were
357 * successful.
358 */
359 static gboolean
g_application_impl_attempt_primary(GApplicationImpl * impl,GCancellable * cancellable,GError ** error)360 g_application_impl_attempt_primary (GApplicationImpl *impl,
361 GCancellable *cancellable,
362 GError **error)
363 {
364 static const GDBusInterfaceVTable vtable = {
365 g_application_impl_method_call,
366 g_application_impl_get_property,
367 NULL, /* set_property */
368 { 0 }
369 };
370 GApplicationClass *app_class = G_APPLICATION_GET_CLASS (impl->app);
371 GBusNameOwnerFlags name_owner_flags;
372 GApplicationFlags app_flags;
373 GVariant *reply;
374 guint32 rval;
375 GError *local_error = NULL;
376
377 if (org_gtk_Application == NULL)
378 {
379 GError *error = NULL;
380 GDBusNodeInfo *info;
381
382 info = g_dbus_node_info_new_for_xml (org_gtk_Application_xml, &error);
383 if G_UNLIKELY (info == NULL)
384 g_error ("%s", error->message);
385 org_gtk_Application = g_dbus_node_info_lookup_interface (info, "org.gtk.Application");
386 g_assert (org_gtk_Application != NULL);
387 g_dbus_interface_info_ref (org_gtk_Application);
388 g_dbus_node_info_unref (info);
389
390 info = g_dbus_node_info_new_for_xml (org_freedesktop_Application_xml, &error);
391 if G_UNLIKELY (info == NULL)
392 g_error ("%s", error->message);
393 org_freedesktop_Application = g_dbus_node_info_lookup_interface (info, "org.freedesktop.Application");
394 g_assert (org_freedesktop_Application != NULL);
395 g_dbus_interface_info_ref (org_freedesktop_Application);
396 g_dbus_node_info_unref (info);
397 }
398
399 /* We could possibly have been D-Bus activated as a result of incoming
400 * requests on either the application or actiongroup interfaces.
401 * Because of how GDBus dispatches messages, we need to ensure that
402 * both of those things are registered before we attempt to request
403 * our name.
404 *
405 * The action group need not be populated yet, as long as it happens
406 * before we return to the mainloop. The reason for that is because
407 * GDBus does the check to make sure the object exists from the worker
408 * thread but doesn't actually dispatch the action invocation until we
409 * hit the mainloop in this thread. There is also no danger of
410 * receiving 'activate' or 'open' signals until after 'startup' runs,
411 * for the same reason.
412 */
413 impl->object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
414 org_gtk_Application, &vtable, impl, NULL, error);
415
416 if (impl->object_id == 0)
417 return FALSE;
418
419 impl->fdo_object_id = g_dbus_connection_register_object (impl->session_bus, impl->object_path,
420 org_freedesktop_Application, &vtable, impl, NULL, error);
421
422 if (impl->fdo_object_id == 0)
423 return FALSE;
424
425 impl->actions_id = g_dbus_connection_export_action_group (impl->session_bus, impl->object_path,
426 impl->exported_actions, error);
427
428 if (impl->actions_id == 0)
429 return FALSE;
430
431 impl->registered = TRUE;
432 if (!app_class->dbus_register (impl->app,
433 impl->session_bus,
434 impl->object_path,
435 &local_error))
436 {
437 g_return_val_if_fail (local_error != NULL, FALSE);
438 g_propagate_error (error, g_steal_pointer (&local_error));
439 return FALSE;
440 }
441
442 g_return_val_if_fail (local_error == NULL, FALSE);
443
444 if (impl->bus_name == NULL)
445 {
446 /* If this is a non-unique application then it is sufficient to
447 * have our object paths registered. We can return now.
448 *
449 * Note: non-unique applications always act as primary-instance.
450 */
451 impl->primary = TRUE;
452 return TRUE;
453 }
454
455 /* If this is a unique application then we need to attempt to own
456 * the well-known name and fall back to remote mode (!is_primary)
457 * in the case that we can't do that.
458 */
459 name_owner_flags = G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE;
460 app_flags = g_application_get_flags (impl->app);
461
462 if (app_flags & G_APPLICATION_ALLOW_REPLACEMENT)
463 {
464 impl->name_lost_signal = g_dbus_connection_signal_subscribe (impl->session_bus,
465 "org.freedesktop.DBus",
466 "org.freedesktop.DBus",
467 "NameLost",
468 "/org/freedesktop/DBus",
469 impl->bus_name,
470 G_DBUS_SIGNAL_FLAGS_NONE,
471 name_lost,
472 impl,
473 NULL);
474
475 name_owner_flags |= G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT;
476 }
477 if (app_flags & G_APPLICATION_REPLACE)
478 name_owner_flags |= G_BUS_NAME_OWNER_FLAGS_REPLACE;
479
480 reply = g_dbus_connection_call_sync (impl->session_bus,
481 "org.freedesktop.DBus",
482 "/org/freedesktop/DBus",
483 "org.freedesktop.DBus",
484 "RequestName",
485 g_variant_new ("(su)", impl->bus_name, name_owner_flags),
486 G_VARIANT_TYPE ("(u)"),
487 0, -1, cancellable, error);
488
489 if (reply == NULL)
490 return FALSE;
491
492 g_variant_get (reply, "(u)", &rval);
493 g_variant_unref (reply);
494
495 /* DBUS_REQUEST_NAME_REPLY_EXISTS: 3 */
496 impl->primary = (rval != 3);
497
498 if (!impl->primary && impl->name_lost_signal)
499 {
500 g_dbus_connection_signal_unsubscribe (impl->session_bus, impl->name_lost_signal);
501 impl->name_lost_signal = 0;
502 }
503
504 return TRUE;
505 }
506
507 /* Stop doing the things that the primary instance does.
508 *
509 * This should be called if attempting to become the primary instance
510 * failed (in order to clean up any partial success) and should also
511 * be called when freeing the GApplication.
512 *
513 * It is safe to call this multiple times.
514 */
515 static void
g_application_impl_stop_primary(GApplicationImpl * impl)516 g_application_impl_stop_primary (GApplicationImpl *impl)
517 {
518 GApplicationClass *app_class = G_APPLICATION_GET_CLASS (impl->app);
519
520 if (impl->registered)
521 {
522 app_class->dbus_unregister (impl->app,
523 impl->session_bus,
524 impl->object_path);
525 impl->registered = FALSE;
526 }
527
528 if (impl->object_id)
529 {
530 g_dbus_connection_unregister_object (impl->session_bus, impl->object_id);
531 impl->object_id = 0;
532 }
533
534 if (impl->fdo_object_id)
535 {
536 g_dbus_connection_unregister_object (impl->session_bus, impl->fdo_object_id);
537 impl->fdo_object_id = 0;
538 }
539
540 if (impl->actions_id)
541 {
542 g_dbus_connection_unexport_action_group (impl->session_bus, impl->actions_id);
543 impl->actions_id = 0;
544 }
545
546 if (impl->name_lost_signal)
547 {
548 g_dbus_connection_signal_unsubscribe (impl->session_bus, impl->name_lost_signal);
549 impl->name_lost_signal = 0;
550 }
551
552 if (impl->primary && impl->bus_name)
553 {
554 g_dbus_connection_call (impl->session_bus, "org.freedesktop.DBus",
555 "/org/freedesktop/DBus", "org.freedesktop.DBus",
556 "ReleaseName", g_variant_new ("(s)", impl->bus_name),
557 NULL, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
558 impl->primary = FALSE;
559 }
560 }
561
562 void
g_application_impl_set_busy_state(GApplicationImpl * impl,gboolean busy)563 g_application_impl_set_busy_state (GApplicationImpl *impl,
564 gboolean busy)
565 {
566 if (impl->busy != busy)
567 {
568 impl->busy = busy;
569 send_property_change (impl);
570 }
571 }
572
573 void
g_application_impl_destroy(GApplicationImpl * impl)574 g_application_impl_destroy (GApplicationImpl *impl)
575 {
576 g_application_impl_stop_primary (impl);
577
578 if (impl->session_bus)
579 g_object_unref (impl->session_bus);
580
581 g_free (impl->object_path);
582
583 g_slice_free (GApplicationImpl, impl);
584 }
585
586 GApplicationImpl *
g_application_impl_register(GApplication * application,const gchar * appid,GApplicationFlags flags,GActionGroup * exported_actions,GRemoteActionGroup ** remote_actions,GCancellable * cancellable,GError ** error)587 g_application_impl_register (GApplication *application,
588 const gchar *appid,
589 GApplicationFlags flags,
590 GActionGroup *exported_actions,
591 GRemoteActionGroup **remote_actions,
592 GCancellable *cancellable,
593 GError **error)
594 {
595 GDBusActionGroup *actions;
596 GApplicationImpl *impl;
597
598 g_assert ((flags & G_APPLICATION_NON_UNIQUE) || appid != NULL);
599
600 impl = g_slice_new0 (GApplicationImpl);
601
602 impl->app = application;
603 impl->exported_actions = exported_actions;
604
605 /* non-unique applications do not attempt to acquire a bus name */
606 if (~flags & G_APPLICATION_NON_UNIQUE)
607 impl->bus_name = appid;
608
609 impl->session_bus = g_bus_get_sync (G_BUS_TYPE_SESSION, cancellable, NULL);
610
611 if (impl->session_bus == NULL)
612 {
613 /* If we can't connect to the session bus, proceed as a normal
614 * non-unique application.
615 */
616 *remote_actions = NULL;
617 return impl;
618 }
619
620 impl->object_path = application_path_from_appid (appid);
621
622 /* Only try to be the primary instance if
623 * G_APPLICATION_IS_LAUNCHER was not specified.
624 */
625 if (~flags & G_APPLICATION_IS_LAUNCHER)
626 {
627 if (!g_application_impl_attempt_primary (impl, cancellable, error))
628 {
629 g_application_impl_destroy (impl);
630 return NULL;
631 }
632
633 if (impl->primary)
634 return impl;
635
636 /* We didn't make it. Drop our service-side stuff. */
637 g_application_impl_stop_primary (impl);
638
639 if (flags & G_APPLICATION_IS_SERVICE)
640 {
641 g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
642 "Unable to acquire bus name '%s'", appid);
643 g_application_impl_destroy (impl);
644
645 return NULL;
646 }
647 }
648
649 /* We are non-primary. Try to get the primary's list of actions.
650 * This also serves as a mechanism to ensure that the primary exists
651 * (ie: D-Bus service files installed correctly, etc).
652 */
653 actions = g_dbus_action_group_get (impl->session_bus, impl->bus_name, impl->object_path);
654 if (!g_dbus_action_group_sync (actions, cancellable, error))
655 {
656 /* The primary appears not to exist. Fail the registration. */
657 g_application_impl_destroy (impl);
658 g_object_unref (actions);
659
660 return NULL;
661 }
662
663 *remote_actions = G_REMOTE_ACTION_GROUP (actions);
664
665 return impl;
666 }
667
668 void
g_application_impl_activate(GApplicationImpl * impl,GVariant * platform_data)669 g_application_impl_activate (GApplicationImpl *impl,
670 GVariant *platform_data)
671 {
672 g_dbus_connection_call (impl->session_bus,
673 impl->bus_name,
674 impl->object_path,
675 "org.gtk.Application",
676 "Activate",
677 g_variant_new ("(@a{sv})", platform_data),
678 NULL, 0, -1, NULL, NULL, NULL);
679 }
680
681 void
g_application_impl_open(GApplicationImpl * impl,GFile ** files,gint n_files,const gchar * hint,GVariant * platform_data)682 g_application_impl_open (GApplicationImpl *impl,
683 GFile **files,
684 gint n_files,
685 const gchar *hint,
686 GVariant *platform_data)
687 {
688 GVariantBuilder builder;
689 gint i;
690
691 g_variant_builder_init (&builder, G_VARIANT_TYPE ("(assa{sv})"));
692 g_variant_builder_open (&builder, G_VARIANT_TYPE_STRING_ARRAY);
693 for (i = 0; i < n_files; i++)
694 {
695 gchar *uri = g_file_get_uri (files[i]);
696 g_variant_builder_add (&builder, "s", uri);
697 g_free (uri);
698 }
699 g_variant_builder_close (&builder);
700 g_variant_builder_add (&builder, "s", hint);
701 g_variant_builder_add_value (&builder, platform_data);
702
703 g_dbus_connection_call (impl->session_bus,
704 impl->bus_name,
705 impl->object_path,
706 "org.gtk.Application",
707 "Open",
708 g_variant_builder_end (&builder),
709 NULL, 0, -1, NULL, NULL, NULL);
710 }
711
712 static void
g_application_impl_cmdline_method_call(GDBusConnection * connection,const gchar * sender,const gchar * object_path,const gchar * interface_name,const gchar * method_name,GVariant * parameters,GDBusMethodInvocation * invocation,gpointer user_data)713 g_application_impl_cmdline_method_call (GDBusConnection *connection,
714 const gchar *sender,
715 const gchar *object_path,
716 const gchar *interface_name,
717 const gchar *method_name,
718 GVariant *parameters,
719 GDBusMethodInvocation *invocation,
720 gpointer user_data)
721 {
722 const gchar *message;
723
724 g_variant_get_child (parameters, 0, "&s", &message);
725
726 if (strcmp (method_name, "Print") == 0)
727 g_print ("%s", message);
728 else if (strcmp (method_name, "PrintError") == 0)
729 g_printerr ("%s", message);
730 else
731 g_assert_not_reached ();
732
733 g_dbus_method_invocation_return_value (invocation, NULL);
734 }
735
736 typedef struct
737 {
738 GMainLoop *loop;
739 int status;
740 } CommandLineData;
741
742 static void
g_application_impl_cmdline_done(GObject * source,GAsyncResult * result,gpointer user_data)743 g_application_impl_cmdline_done (GObject *source,
744 GAsyncResult *result,
745 gpointer user_data)
746 {
747 CommandLineData *data = user_data;
748 GError *error = NULL;
749 GVariant *reply;
750
751 #ifdef G_OS_UNIX
752 reply = g_dbus_connection_call_with_unix_fd_list_finish (G_DBUS_CONNECTION (source), NULL, result, &error);
753 #else
754 reply = g_dbus_connection_call_finish (G_DBUS_CONNECTION (source), result, &error);
755 #endif
756
757
758 if (reply != NULL)
759 {
760 g_variant_get (reply, "(i)", &data->status);
761 g_variant_unref (reply);
762 }
763
764 else
765 {
766 g_printerr ("%s\n", error->message);
767 g_error_free (error);
768 data->status = 1;
769 }
770
771 g_main_loop_quit (data->loop);
772 }
773
774 int
g_application_impl_command_line(GApplicationImpl * impl,const gchar * const * arguments,GVariant * platform_data)775 g_application_impl_command_line (GApplicationImpl *impl,
776 const gchar * const *arguments,
777 GVariant *platform_data)
778 {
779 static const GDBusInterfaceVTable vtable = {
780 g_application_impl_cmdline_method_call, NULL, NULL, { 0 }
781 };
782 const gchar *object_path = "/org/gtk/Application/CommandLine";
783 GMainContext *context;
784 CommandLineData data;
785 guint object_id G_GNUC_UNUSED /* when compiling with G_DISABLE_ASSERT */;
786
787 context = g_main_context_new ();
788 data.loop = g_main_loop_new (context, FALSE);
789 g_main_context_push_thread_default (context);
790
791 if (org_gtk_private_CommandLine == NULL)
792 {
793 GError *error = NULL;
794 GDBusNodeInfo *info;
795
796 info = g_dbus_node_info_new_for_xml (org_gtk_private_CommandLine_xml, &error);
797 if G_UNLIKELY (info == NULL)
798 g_error ("%s", error->message);
799 org_gtk_private_CommandLine = g_dbus_node_info_lookup_interface (info, "org.gtk.private.CommandLine");
800 g_assert (org_gtk_private_CommandLine != NULL);
801 g_dbus_interface_info_ref (org_gtk_private_CommandLine);
802 g_dbus_node_info_unref (info);
803 }
804
805 object_id = g_dbus_connection_register_object (impl->session_bus, object_path,
806 org_gtk_private_CommandLine,
807 &vtable, &data, NULL, NULL);
808 /* In theory we should try other paths... */
809 g_assert (object_id != 0);
810
811 #ifdef G_OS_UNIX
812 {
813 GError *error = NULL;
814 GUnixFDList *fd_list;
815
816 /* send along the stdin in case
817 * g_application_command_line_get_stdin_data() is called
818 */
819 fd_list = g_unix_fd_list_new ();
820 g_unix_fd_list_append (fd_list, 0, &error);
821 g_assert_no_error (error);
822
823 g_dbus_connection_call_with_unix_fd_list (impl->session_bus, impl->bus_name, impl->object_path,
824 "org.gtk.Application", "CommandLine",
825 g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
826 G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, fd_list, NULL,
827 g_application_impl_cmdline_done, &data);
828 g_object_unref (fd_list);
829 }
830 #else
831 g_dbus_connection_call (impl->session_bus, impl->bus_name, impl->object_path,
832 "org.gtk.Application", "CommandLine",
833 g_variant_new ("(o^aay@a{sv})", object_path, arguments, platform_data),
834 G_VARIANT_TYPE ("(i)"), 0, G_MAXINT, NULL,
835 g_application_impl_cmdline_done, &data);
836 #endif
837
838 g_main_loop_run (data.loop);
839
840 g_main_context_pop_thread_default (context);
841 g_main_context_unref (context);
842 g_main_loop_unref (data.loop);
843
844 return data.status;
845 }
846
847 void
g_application_impl_flush(GApplicationImpl * impl)848 g_application_impl_flush (GApplicationImpl *impl)
849 {
850 if (impl->session_bus)
851 g_dbus_connection_flush_sync (impl->session_bus, NULL, NULL);
852 }
853
854 GDBusConnection *
g_application_impl_get_dbus_connection(GApplicationImpl * impl)855 g_application_impl_get_dbus_connection (GApplicationImpl *impl)
856 {
857 return impl->session_bus;
858 }
859
860 const gchar *
g_application_impl_get_dbus_object_path(GApplicationImpl * impl)861 g_application_impl_get_dbus_object_path (GApplicationImpl *impl)
862 {
863 return impl->object_path;
864 }
865
866 /* GDBusCommandLine implementation {{{1 */
867
868 typedef GApplicationCommandLineClass GDBusCommandLineClass;
869 static GType g_dbus_command_line_get_type (void);
870 typedef struct
871 {
872 GApplicationCommandLine parent_instance;
873 GDBusMethodInvocation *invocation;
874
875 GDBusConnection *connection;
876 const gchar *bus_name;
877 const gchar *object_path;
878 } GDBusCommandLine;
879
880
G_DEFINE_TYPE(GDBusCommandLine,g_dbus_command_line,G_TYPE_APPLICATION_COMMAND_LINE)881 G_DEFINE_TYPE (GDBusCommandLine,
882 g_dbus_command_line,
883 G_TYPE_APPLICATION_COMMAND_LINE)
884
885 static void
886 g_dbus_command_line_print_literal (GApplicationCommandLine *cmdline,
887 const gchar *message)
888 {
889 GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
890
891 g_dbus_connection_call (gdbcl->connection,
892 gdbcl->bus_name,
893 gdbcl->object_path,
894 "org.gtk.private.CommandLine", "Print",
895 g_variant_new ("(s)", message),
896 NULL, 0, -1, NULL, NULL, NULL);
897 }
898
899 static void
g_dbus_command_line_printerr_literal(GApplicationCommandLine * cmdline,const gchar * message)900 g_dbus_command_line_printerr_literal (GApplicationCommandLine *cmdline,
901 const gchar *message)
902 {
903 GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
904
905 g_dbus_connection_call (gdbcl->connection,
906 gdbcl->bus_name,
907 gdbcl->object_path,
908 "org.gtk.private.CommandLine", "PrintError",
909 g_variant_new ("(s)", message),
910 NULL, 0, -1, NULL, NULL, NULL);
911 }
912
913 static GInputStream *
g_dbus_command_line_get_stdin(GApplicationCommandLine * cmdline)914 g_dbus_command_line_get_stdin (GApplicationCommandLine *cmdline)
915 {
916 #ifdef G_OS_UNIX
917 GDBusCommandLine *gdbcl = (GDBusCommandLine *) cmdline;
918 GInputStream *result = NULL;
919 GDBusMessage *message;
920 GUnixFDList *fd_list;
921
922 message = g_dbus_method_invocation_get_message (gdbcl->invocation);
923 fd_list = g_dbus_message_get_unix_fd_list (message);
924
925 if (fd_list && g_unix_fd_list_get_length (fd_list))
926 {
927 gint *fds, n_fds, i;
928
929 fds = g_unix_fd_list_steal_fds (fd_list, &n_fds);
930 result = g_unix_input_stream_new (fds[0], TRUE);
931 for (i = 1; i < n_fds; i++)
932 (void) g_close (fds[i], NULL);
933 g_free (fds);
934 }
935
936 return result;
937 #else
938 return NULL;
939 #endif
940 }
941
942 static void
g_dbus_command_line_finalize(GObject * object)943 g_dbus_command_line_finalize (GObject *object)
944 {
945 GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
946 GDBusCommandLine *gdbcl = (GDBusCommandLine *) object;
947 gint status;
948
949 status = g_application_command_line_get_exit_status (cmdline);
950
951 g_dbus_method_invocation_return_value (gdbcl->invocation,
952 g_variant_new ("(i)", status));
953 g_object_unref (gdbcl->invocation);
954
955 G_OBJECT_CLASS (g_dbus_command_line_parent_class)
956 ->finalize (object);
957 }
958
959 static void
g_dbus_command_line_init(GDBusCommandLine * gdbcl)960 g_dbus_command_line_init (GDBusCommandLine *gdbcl)
961 {
962 }
963
964 static void
g_dbus_command_line_class_init(GApplicationCommandLineClass * class)965 g_dbus_command_line_class_init (GApplicationCommandLineClass *class)
966 {
967 GObjectClass *object_class = G_OBJECT_CLASS (class);
968
969 object_class->finalize = g_dbus_command_line_finalize;
970 class->printerr_literal = g_dbus_command_line_printerr_literal;
971 class->print_literal = g_dbus_command_line_print_literal;
972 class->get_stdin = g_dbus_command_line_get_stdin;
973 }
974
975 static GApplicationCommandLine *
g_dbus_command_line_new(GDBusMethodInvocation * invocation)976 g_dbus_command_line_new (GDBusMethodInvocation *invocation)
977 {
978 GDBusCommandLine *gdbcl;
979 GVariant *args;
980 GVariant *arguments, *platform_data;
981
982 args = g_dbus_method_invocation_get_parameters (invocation);
983
984 arguments = g_variant_get_child_value (args, 1);
985 platform_data = g_variant_get_child_value (args, 2);
986 gdbcl = g_object_new (g_dbus_command_line_get_type (),
987 "arguments", arguments,
988 "platform-data", platform_data,
989 NULL);
990 g_variant_unref (arguments);
991 g_variant_unref (platform_data);
992
993 gdbcl->connection = g_dbus_method_invocation_get_connection (invocation);
994 gdbcl->bus_name = g_dbus_method_invocation_get_sender (invocation);
995 g_variant_get_child (args, 0, "&o", &gdbcl->object_path);
996 gdbcl->invocation = g_object_ref (invocation);
997
998 return G_APPLICATION_COMMAND_LINE (gdbcl);
999 }
1000
1001 /* Epilogue {{{1 */
1002
1003 /* vim:set foldmethod=marker: */
1004