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comparison: pidgin/gtksession.c

pidgin/gtksession.c

changeset 38430
bdfe42985eee
parent 38427
4eab2835a525
parent 38429
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child 38431
71898cf4d20f
child 38533
2b5c1cebae07
equal deleted inserted replaced
38427:4eab2835a525 38430:bdfe42985eee
1 /* Pidgin is the legal property of its developers, whose names are too numerous
2 * to list here. Please refer to the COPYRIGHT file distributed with this
3 * source distribution.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
18 *
19 */
20 #include "internal.h"
21
22 #include "core.h"
23 #include "debug.h"
24 #include "eventloop.h"
25 #include "gtksession.h"
26
27 #ifdef USE_SM
28
29 #include <X11/ICE/ICElib.h>
30 #include <X11/SM/SMlib.h>
31 #include <gdk/gdkx.h>
32 #include <unistd.h>
33 #include <fcntl.h>
34 #include <gdk/gdk.h>
35 #include <gtk/gtk.h>
36
37 #include "gtk3compat.h"
38
39 #define ERROR_LENGTH 512
40
41 static IceIOErrorHandler ice_installed_io_error_handler;
42 static SmcConn session = NULL;
43 static gchar *myself = NULL;
44 static gboolean had_first_save = FALSE;
45 static gboolean session_managed = FALSE;
46
47 /* ICE belt'n'braces stuff */
48
49 struct ice_connection_info {
50 IceConn connection;
51 guint input_id;
52 };
53
54 static void ice_process_messages(gpointer data, gint fd,
55 PurpleInputCondition condition) {
56 struct ice_connection_info *conninfo = (struct ice_connection_info*) data;
57 IceProcessMessagesStatus status;
58
59 /* please don't block... please! */
60 status = IceProcessMessages(conninfo->connection, NULL, NULL);
61
62 if (status == IceProcessMessagesIOError) {
63 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
64 "ICE IO error, closing connection... ");
65
66 /* IO error, please disconnect */
67 IceSetShutdownNegotiation(conninfo->connection, False);
68 IceCloseConnection(conninfo->connection);
69
70 if (purple_debug_is_verbose()) {
71 purple_debug_misc("Session Management",
72 "Connection closed.");
73 }
74
75 /* cancel the handler */
76 purple_input_remove(conninfo->input_id);
77 }
78 }
79
80 static void ice_connection_watch(IceConn connection, IcePointer client_data,
81 Bool opening, IcePointer *watch_data) {
82 struct ice_connection_info *conninfo = NULL;
83
84 if (opening) {
85 purple_debug_misc("Session Management",
86 "Handling new ICE connection...");
87
88 /* ensure ICE connection is not passed to child processes */
89 if (fcntl(IceConnectionNumber(connection), F_SETFD, FD_CLOEXEC) != 0)
90 purple_debug_warning("gtksession", "couldn't set FD_CLOEXEC\n");
91
92 conninfo = g_new(struct ice_connection_info, 1);
93 conninfo->connection = connection;
94
95 /* watch the connection */
96 conninfo->input_id = purple_input_add(IceConnectionNumber(connection), PURPLE_INPUT_READ,
97 ice_process_messages, conninfo);
98 *watch_data = conninfo;
99 } else {
100 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
101 "Handling closed ICE connection... \n");
102
103 /* get the input ID back and stop watching it */
104 conninfo = (struct ice_connection_info*) *watch_data;
105 purple_input_remove(conninfo->input_id);
106 g_free(conninfo);
107 }
108
109 if (purple_debug_is_verbose()) {
110 purple_debug_misc("Session Management",
111 "ICE connection handled.");
112 }
113 }
114
115 /* We call any handler installed before (or after) ice_init but
116 * avoid calling the default libICE handler which does an exit().
117 *
118 * This means we do nothing by default, which is probably correct,
119 * the connection will get closed by libICE
120 */
121
122 static void ice_io_error_handler(IceConn connection) {
123 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
124 "Handling ICE IO error... ");
125
126 if (ice_installed_io_error_handler)
127 (*ice_installed_io_error_handler)(connection);
128
129 if (purple_debug_is_verbose()) {
130 purple_debug_misc("Session Management",
131 "ICE IO error handled.");
132 }
133 }
134
135 static void ice_init(void) {
136 IceIOErrorHandler default_handler;
137
138 ice_installed_io_error_handler = IceSetIOErrorHandler(NULL);
139 default_handler = IceSetIOErrorHandler(ice_io_error_handler);
140
141 if (ice_installed_io_error_handler == default_handler)
142 ice_installed_io_error_handler = NULL;
143
144 IceAddConnectionWatch(ice_connection_watch, NULL);
145
146 if (purple_debug_is_verbose()) {
147 purple_debug_misc("Session Management", "ICE initialized.");
148 }
149 }
150
151 /* my magic utility function */
152
153 static gchar **session_make_command(gchar *client_id, gchar *config_dir) {
154 gint i = 4;
155 gint j = 0;
156 gchar **ret;
157
158 if (client_id) i += 2;
159 if (config_dir) i += 2; /* we will specify purple's user dir */
160
161 ret = g_new(gchar *, i);
162 ret[j++] = g_strdup(myself);
163
164 if (client_id) {
165 ret[j++] = g_strdup("--session");
166 ret[j++] = g_strdup(client_id);
167 }
168
169 if (config_dir) {
170 ret[j++] = g_strdup("--config");
171 ret[j++] = g_strdup(config_dir);
172 }
173
174 ret[j++] = g_strdup("--display");
175 ret[j++] = g_strdup((gchar *)gdk_display_get_name(gdk_display_get_default()));
176
177 ret[j] = NULL;
178
179 return ret;
180 }
181
182 /* SM callback handlers */
183
184 static void session_save_yourself(SmcConn conn, SmPointer data, int save_type,
185 Bool shutdown, int interact_style, Bool fast) {
186 if (had_first_save == FALSE && save_type == SmSaveLocal &&
187 interact_style == SmInteractStyleNone && !shutdown &&
188 !fast) {
189 /* this is just a dry run, spit it back */
190 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
191 "Received first save_yourself\n");
192 SmcSaveYourselfDone(conn, True);
193 had_first_save = TRUE;
194 return;
195 }
196
197 /* tum ti tum... don't add anything else here without *
198 * reading SMlib.PS from an X.org ftp server near you */
199
200 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
201 "Received save_yourself\n");
202
203 if (save_type == SmSaveGlobal || save_type == SmSaveBoth) {
204 /* may as well do something ... */
205 /* or not -- save_prefs(); */
206 }
207
208 SmcSaveYourselfDone(conn, True);
209 }
210
211 static void session_die(SmcConn conn, SmPointer data) {
212 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
213 "Received die\n");
214 purple_core_quit();
215 }
216
217 static void session_save_complete(SmcConn conn, SmPointer data) {
218 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
219 "Received save_complete\n");
220 }
221
222 static void session_shutdown_cancelled(SmcConn conn, SmPointer data) {
223 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
224 "Received shutdown_cancelled\n");
225 }
226
227 /* utility functions stolen from Gnome-client */
228
229 static void session_set_value(SmcConn conn, gchar *name, char *type,
230 int num_vals, SmPropValue *vals) {
231 SmProp *proplist[1];
232 SmProp prop;
233
234 g_return_if_fail(conn);
235
236 prop.name = name;
237 prop.type = type;
238 prop.num_vals = num_vals;
239 prop.vals = vals;
240
241 proplist[0] = &prop;
242 SmcSetProperties(conn, 1, proplist);
243 }
244
245 static void session_set_string(SmcConn conn, gchar *name, gchar *value) {
246 SmPropValue val;
247
248 g_return_if_fail(name);
249
250 val.length = strlen (value)+1;
251 val.value = value;
252
253 session_set_value(conn, name, SmARRAY8, 1, &val);
254 }
255
256 static void session_set_gchar(SmcConn conn, gchar *name, gchar value) {
257 SmPropValue val;
258
259 g_return_if_fail(name);
260
261 val.length = 1;
262 val.value = &value;
263
264 session_set_value(conn, name, SmCARD8, 1, &val);
265 }
266
267 static void session_set_array(SmcConn conn, gchar *name, gchar *array[]) {
268 gint argc;
269 gchar **ptr;
270 gint i;
271
272 SmPropValue *vals;
273
274 g_return_if_fail (name);
275
276 /* We count the number of elements in our array. */
277 for (ptr = array, argc = 0; *ptr ; ptr++, argc++) /* LOOP */;
278
279 /* Now initialize the 'vals' array. */
280 vals = g_new (SmPropValue, argc);
281 for (ptr = array, i = 0 ; i < argc ; ptr++, i++) {
282 vals[i].length = strlen (*ptr);
283 vals[i].value = *ptr;
284 }
285
286 session_set_value(conn, name, SmLISTofARRAY8, argc, vals);
287
288 g_free (vals);
289 }
290
291 #endif /* USE_SM */
292
293 /* setup functions */
294
295 void
296 pidgin_session_init(gchar *argv0, gchar *previous_id, gchar *config_dir)
297 {
298 #ifdef USE_SM
299 SmcCallbacks callbacks;
300 gchar *client_id = NULL;
301 gchar error[ERROR_LENGTH] = "";
302 gchar *tmp = NULL;
303 gchar **cmd = NULL;
304
305 if (session != NULL) {
306 /* session is already established, what the hell is going on? */
307 purple_debug(PURPLE_DEBUG_WARNING, "Session Management",
308 "Duplicated call to pidgin_session_init!\n");
309 return;
310 }
311
312 if (g_getenv("SESSION_MANAGER") == NULL) {
313 purple_debug(PURPLE_DEBUG_ERROR, "Session Management",
314 "No SESSION_MANAGER found, aborting.\n");
315 return;
316 }
317
318 ice_init();
319
320 callbacks.save_yourself.callback = session_save_yourself;
321 callbacks.die.callback = session_die;
322 callbacks.save_complete.callback = session_save_complete;
323 callbacks.shutdown_cancelled.callback = session_shutdown_cancelled;
324
325 callbacks.save_yourself.client_data = NULL;
326 callbacks.die.client_data = NULL;
327 callbacks.save_complete.client_data = NULL;
328 callbacks.shutdown_cancelled.client_data = NULL;
329
330 if (previous_id) {
331 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
332 "Connecting with previous ID %s\n", previous_id);
333 } else {
334 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
335 "Connecting with no previous ID\n");
336 }
337
338 session = SmcOpenConnection(NULL, "session", SmProtoMajor, SmProtoMinor, SmcSaveYourselfProcMask |
339 SmcDieProcMask | SmcSaveCompleteProcMask | SmcShutdownCancelledProcMask,
340 &callbacks, previous_id, &client_id, ERROR_LENGTH, error);
341
342 if (session == NULL) {
343 if (error[0] != '\0') {
344 purple_debug(PURPLE_DEBUG_ERROR, "Session Management",
345 "Connection failed with error: %s\n", error);
346 } else {
347 purple_debug(PURPLE_DEBUG_ERROR, "Session Management",
348 "Connetion failed with unknown error.\n");
349 }
350 return;
351 }
352
353 tmp = SmcVendor(session);
354 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
355 "Connected to manager (%s) with client ID %s\n",
356 tmp, client_id);
357 free(tmp);
358
359 session_managed = TRUE;
360 gdk_x11_set_sm_client_id(client_id);
361
362 tmp = g_get_current_dir();
363 session_set_string(session, SmCurrentDirectory, tmp);
364 g_free(tmp);
365
366 tmp = g_strdup_printf("%d", (int) getpid());
367 session_set_string(session, SmProcessID, tmp);
368 g_free(tmp);
369
370 tmp = g_strdup(g_get_user_name());
371 session_set_string(session, SmUserID, tmp);
372 g_free(tmp);
373
374 session_set_gchar(session, SmRestartStyleHint, (gchar) SmRestartIfRunning);
375 session_set_string(session, SmProgram, (gchar *) g_get_prgname());
376
377 myself = g_strdup(argv0);
378 purple_debug(PURPLE_DEBUG_MISC, "Session Management",
379 "Using %s as command\n", myself);
380
381 cmd = session_make_command(NULL, config_dir);
382 session_set_array(session, SmCloneCommand, cmd);
383 g_strfreev(cmd);
384
385 /* this is currently useless, but gnome-session warns 'the following applications will not
386 save their current status' bla bla if we don't have it and the user checks 'Save Session'
387 when they log out */
388 cmd = g_new(gchar *, 2);
389 cmd[0] = g_strdup("/bin/true");
390 cmd[1] = NULL;
391 session_set_array(session, SmDiscardCommand, cmd);
392 g_strfreev(cmd);
393
394 cmd = session_make_command(client_id, config_dir);
395 session_set_array(session, SmRestartCommand, cmd);
396 g_strfreev(cmd);
397
398 g_free(client_id);
399 #endif /* USE_SM */
400 }
401
402 void
403 pidgin_session_end()
404 {
405 #ifdef USE_SM
406 if (session == NULL) /* no session to close */
407 return;
408
409 SmcCloseConnection(session, 0, NULL);
410
411 purple_debug(PURPLE_DEBUG_INFO, "Session Management",
412 "Connection closed.\n");
413 #endif /* USE_SM */
414 }

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