gnome-2-26/libempathy/empathy-utils.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2003-2007 Imendio AB
   4  * Copyright (C) 2007-2008 Collabora Ltd.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this program; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  *
  21  * Authors: Richard Hult <richard@imendio.com>
  22  *          Martyn Russell <martyn@imendio.com>
  23  *          Xavier Claessens <xclaesse@gmail.com>
  24  */
  25
  26 #include "config.h"
  27
  28 #include <string.h>
  29 #include <time.h>
  30 #include <sys/types.h>
  31
  32 #include <glib/gi18n-lib.h>
  33
  34 #include <libxml/uri.h>
  35 #include <telepathy-glib/connection.h>
  36 #include <telepathy-glib/channel.h>
  37 #include <telepathy-glib/dbus.h>
  38
  39 #include "empathy-utils.h"
  40 #include "empathy-contact-factory.h"
  41 #include "empathy-contact-manager.h"
  42 #include "empathy-dispatcher.h"
  43 #include "empathy-dispatch-operation.h"
  44 #include "empathy-idle.h"
  45 #include "empathy-tp-call.h"
  46
  47 #include <extensions/extensions.h>
  48
  49 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  50 #include "empathy-debug.h"
  51
  52
  53 void
  54 empathy_init (void)
  55 {
  56         static gboolean initialized = FALSE;
  57
  58         if (initialized)
  59                 return;
  60
  61         g_type_init ();
  62
  63         /* Setup gettext */
  64         bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
  65         bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
  66
  67         /* Setup debug output for empathy and telepathy-glib */
  68         if (g_getenv ("EMPATHY_TIMING") != NULL) {
  69                 g_log_set_default_handler (tp_debug_timestamped_log_handler, NULL);
  70         }
  71         empathy_debug_set_flags (g_getenv ("EMPATHY_DEBUG"));
  72         tp_debug_divert_messages (g_getenv ("EMPATHY_LOGFILE"));
  73
  74         emp_cli_init ();
  75
  76         initialized = TRUE;
  77 }
  78
  79 gchar *
  80 empathy_substring (const gchar *str,
  81                   gint         start,
  82                   gint         end)
  83 {
  84         return g_strndup (str + start, end - start);
  85 }
  86
  87 gint
  88 empathy_strcasecmp (const gchar *s1,
  89                    const gchar *s2)
  90 {
  91         return empathy_strncasecmp (s1, s2, -1);
  92 }
  93
  94 gint
  95 empathy_strncasecmp (const gchar *s1,
  96                     const gchar *s2,
  97                     gsize        n)
  98 {
  99         gchar *u1, *u2;
 100         gint   ret_val;
 101
 102         u1 = g_utf8_casefold (s1, n);
 103         u2 = g_utf8_casefold (s2, n);
 104
 105         ret_val = g_utf8_collate (u1, u2);
 106         g_free (u1);
 107         g_free (u2);
 108
 109         return ret_val;
 110 }
 111
 112 gboolean
 113 empathy_xml_validate (xmlDoc      *doc,
 114                      const gchar *dtd_filename)
 115 {
 116         gchar        *path, *escaped;
 117         xmlValidCtxt  cvp;
 118         xmlDtd       *dtd;
 119         gboolean      ret;
 120
 121         path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), "libempathy",
 122                                  dtd_filename, NULL);
 123         if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
 124                 g_free (path);
 125                 path = g_build_filename (DATADIR, "empathy", dtd_filename, NULL);
 126         }
 127         DEBUG ("Loading dtd file %s", path);
 128
 129         /* The list of valid chars is taken from libxml. */
 130         escaped = xmlURIEscapeStr (path, ":@&=+$,/?;");
 131         g_free (path);
 132
 133         memset (&cvp, 0, sizeof (cvp));
 134         dtd = xmlParseDTD (NULL, escaped);
 135         ret = xmlValidateDtd (&cvp, doc, dtd);
 136
 137         xmlFree (escaped);
 138         xmlFreeDtd (dtd);
 139
 140         return ret;
 141 }
 142
 143 xmlNodePtr
 144 empathy_xml_node_get_child (xmlNodePtr   node,
 145                            const gchar *child_name)
 146 {
 147         xmlNodePtr l;
 148
 149         g_return_val_if_fail (node != NULL, NULL);
 150         g_return_val_if_fail (child_name != NULL, NULL);
 151
 152         for (l = node->children; l; l = l->next) {
 153                 if (l->name && strcmp (l->name, child_name) == 0) {
 154                         return l;
 155                 }
 156         }
 157
 158         return NULL;
 159 }
 160
 161 xmlChar *
 162 empathy_xml_node_get_child_content (xmlNodePtr   node,
 163                                    const gchar *child_name)
 164 {
 165         xmlNodePtr l;
 166
 167         g_return_val_if_fail (node != NULL, NULL);
 168         g_return_val_if_fail (child_name != NULL, NULL);
 169
 170         l = empathy_xml_node_get_child (node, child_name);
 171         if (l) {
 172                 return xmlNodeGetContent (l);
 173         }
 174
 175         return NULL;
 176 }
 177
 178 xmlNodePtr
 179 empathy_xml_node_find_child_prop_value (xmlNodePtr   node,
 180                                        const gchar *prop_name,
 181                                        const gchar *prop_value)
 182 {
 183         xmlNodePtr l;
 184         xmlNodePtr found = NULL;
 185
 186         g_return_val_if_fail (node != NULL, NULL);
 187         g_return_val_if_fail (prop_name != NULL, NULL);
 188         g_return_val_if_fail (prop_value != NULL, NULL);
 189
 190         for (l = node->children; l && !found; l = l->next) {
 191                 xmlChar *prop;
 192
 193                 if (!xmlHasProp (l, prop_name)) {
 194                         continue;
 195                 }
 196
 197                 prop = xmlGetProp (l, prop_name);
 198                 if (prop && strcmp (prop, prop_value) == 0) {
 199                         found = l;
 200                 }
 201
 202                 xmlFree (prop);
 203         }
 204
 205         return found;
 206 }
 207
 208 guint
 209 empathy_account_hash (gconstpointer key)
 210 {
 211         g_return_val_if_fail (MC_IS_ACCOUNT (key), 0);
 212
 213         return g_str_hash (mc_account_get_unique_name (MC_ACCOUNT (key)));
 214 }
 215
 216 gboolean
 217 empathy_account_equal (gconstpointer a,
 218                        gconstpointer b)
 219 {
 220         const gchar *name_a;
 221         const gchar *name_b;
 222
 223         g_return_val_if_fail (MC_IS_ACCOUNT (a), FALSE);
 224         g_return_val_if_fail (MC_IS_ACCOUNT (b), FALSE);
 225
 226         name_a = mc_account_get_unique_name (MC_ACCOUNT (a));
 227         name_b = mc_account_get_unique_name (MC_ACCOUNT (b));
 228
 229         return g_str_equal (name_a, name_b);
 230 }
 231
 232 MissionControl *
 233 empathy_mission_control_dup_singleton (void)
 234 {
 235         static MissionControl *mc = NULL;
 236
 237         if (!mc) {
 238                 mc = mission_control_new (tp_get_bus ());
 239                 g_object_add_weak_pointer (G_OBJECT (mc), (gpointer) &mc);
 240         } else {
 241                 g_object_ref (mc);
 242         }
 243
 244         return mc;
 245 }
 246
 247 const gchar *
 248 empathy_presence_get_default_message (McPresence presence)
 249 {
 250         switch (presence) {
 251         case MC_PRESENCE_AVAILABLE:
 252                 return _("Available");
 253         case MC_PRESENCE_DO_NOT_DISTURB:
 254                 return _("Busy");
 255         case MC_PRESENCE_AWAY:
 256         case MC_PRESENCE_EXTENDED_AWAY:
 257                 return _("Away");
 258         case MC_PRESENCE_HIDDEN:
 259                 return _("Hidden");
 260         case MC_PRESENCE_OFFLINE:
 261         case MC_PRESENCE_UNSET:
 262                 return _("Offline");
 263         default:
 264                 g_assert_not_reached ();
 265         }
 266
 267         return NULL;
 268 }
 269
 270 const gchar *
 271 empathy_presence_to_str (McPresence presence)
 272 {
 273         switch (presence) {
 274         case MC_PRESENCE_AVAILABLE:
 275                 return "available";
 276         case MC_PRESENCE_DO_NOT_DISTURB:
 277                 return "busy";
 278         case MC_PRESENCE_AWAY:
 279                 return "away";
 280         case MC_PRESENCE_EXTENDED_AWAY:
 281                 return "ext_away";
 282         case MC_PRESENCE_HIDDEN:
 283                 return "hidden";
 284         case MC_PRESENCE_OFFLINE:
 285                 return "offline";
 286         case MC_PRESENCE_UNSET:
 287                 return "unset";
 288         default:
 289                 g_assert_not_reached ();
 290         }
 291
 292         return NULL;
 293 }
 294
 295 McPresence
 296 empathy_presence_from_str (const gchar *str)
 297 {
 298         if (strcmp (str, "available") == 0) {
 299                 return MC_PRESENCE_AVAILABLE;
 300         } else if ((strcmp (str, "dnd") == 0) || (strcmp (str, "busy") == 0)) {
 301                 return MC_PRESENCE_DO_NOT_DISTURB;
 302         } else if ((strcmp (str, "away") == 0) || (strcmp (str, "brb") == 0)) {
 303                 return MC_PRESENCE_AWAY;
 304         } else if ((strcmp (str, "xa") == 0) || (strcmp (str, "ext_away") == 0)) {
 305                 return MC_PRESENCE_EXTENDED_AWAY;
 306         } else if (strcmp (str, "hidden") == 0) {
 307                 return MC_PRESENCE_HIDDEN;
 308         } else if (strcmp (str, "offline") == 0) {
 309                 return MC_PRESENCE_OFFLINE;
 310         } else if (strcmp (str, "unset") == 0) {
 311                 return MC_PRESENCE_UNSET;
 312         }
 313
 314         return MC_PRESENCE_UNSET;
 315 }
 316
 317 gchar *
 318 empathy_file_lookup (const gchar *filename, const gchar *subdir)
 319 {
 320         gchar *path;
 321
 322         if (!subdir) {
 323                 subdir = ".";
 324         }
 325
 326         path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), subdir, filename, NULL);
 327         if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
 328                 g_free (path);
 329                 path = g_build_filename (DATADIR, "empathy", filename, NULL);
 330         }
 331
 332         return path;
 333 }
 334
 335 typedef struct {
 336         EmpathyRunUntilReadyFunc  func;
 337         gpointer                  user_data;
 338         GObject                  *object;
 339         GMainLoop                *loop;
 340 } RunUntilReadyData;
 341
 342 static void
 343 run_until_ready_cb (RunUntilReadyData *data)
 344 {
 345         if (!data->func || data->func (data->object, data->user_data)) {
 346                 DEBUG ("Object %p is ready", data->object);
 347                 g_main_loop_quit (data->loop);
 348         }
 349 }
 350
 351 static gboolean
 352 object_is_ready (GObject *object,
 353                  gpointer user_data)
 354 {
 355         gboolean ready;
 356
 357         g_object_get (object, "ready", &ready, NULL);
 358
 359         return ready;
 360 }
 361
 362 void
 363 empathy_run_until_ready_full (gpointer                  object,
 364                               const gchar              *signal,
 365                               EmpathyRunUntilReadyFunc  func,
 366                               gpointer                  user_data,
 367                               GMainLoop               **loop)
 368 {
 369         RunUntilReadyData  data;
 370         gulong             signal_id;
 371
 372         g_return_if_fail (G_IS_OBJECT (object));
 373         g_return_if_fail (signal != NULL);
 374
 375         if (func && func (object, user_data)) {
 376                 return;
 377         }
 378
 379         DEBUG ("Starting run until ready for object %p", object);
 380
 381         data.func = func;
 382         data.user_data = user_data;
 383         data.object = object;
 384         data.loop = g_main_loop_new (NULL, FALSE);
 385
 386         signal_id = g_signal_connect_swapped (object, signal,
 387                                               G_CALLBACK (run_until_ready_cb),
 388                                               &data);
 389         if (loop != NULL) {
 390                 *loop = data.loop;
 391         }
 392
 393         g_main_loop_run (data.loop);
 394
 395         if (loop != NULL) {
 396                 *loop = NULL;
 397         }
 398
 399         g_signal_handler_disconnect (object, signal_id);
 400         g_main_loop_unref (data.loop);
 401 }
 402
 403 void
 404 empathy_run_until_ready (gpointer object)
 405 {
 406         empathy_run_until_ready_full (object, "notify::ready", object_is_ready,
 407                                       NULL, NULL);
 408 }
 409
 410 McAccount *
 411 empathy_channel_get_account (TpChannel *channel)
 412 {
 413         TpConnection   *connection;
 414         McAccount      *account;
 415         MissionControl *mc;
 416
 417         g_object_get (channel, "connection", &connection, NULL);
 418         mc = empathy_mission_control_dup_singleton ();
 419         account = mission_control_get_account_for_tpconnection (mc, connection, NULL);
 420         g_object_unref (connection);
 421         g_object_unref (mc);
 422
 423         return account;
 424 }
 425
 426 guint
 427 empathy_proxy_hash (gconstpointer key)
 428 {
 429         TpProxy      *proxy = TP_PROXY (key);
 430         TpProxyClass *proxy_class = TP_PROXY_GET_CLASS (key);
 431
 432         g_return_val_if_fail (TP_IS_PROXY (proxy), 0);
 433         g_return_val_if_fail (proxy_class->must_have_unique_name, 0);
 434
 435         return g_str_hash (proxy->object_path) ^ g_str_hash (proxy->bus_name);
 436 }
 437
 438 gboolean
 439 empathy_proxy_equal (gconstpointer a,
 440                      gconstpointer b)
 441 {
 442         TpProxy *proxy_a = TP_PROXY (a);
 443         TpProxy *proxy_b = TP_PROXY (b);
 444         TpProxyClass *proxy_a_class = TP_PROXY_GET_CLASS (a);
 445         TpProxyClass *proxy_b_class = TP_PROXY_GET_CLASS (b);
 446
 447         g_return_val_if_fail (TP_IS_PROXY (proxy_a), FALSE);
 448         g_return_val_if_fail (TP_IS_PROXY (proxy_b), FALSE);
 449         g_return_val_if_fail (proxy_a_class->must_have_unique_name, 0);
 450         g_return_val_if_fail (proxy_b_class->must_have_unique_name, 0);
 451
 452         return g_str_equal (proxy_a->object_path, proxy_b->object_path) &&
 453                g_str_equal (proxy_a->bus_name, proxy_b->bus_name);
 454 }
 455
 456 gboolean
 457 empathy_check_available_state (void)
 458 {
 459         McPresence presence;
 460         EmpathyIdle *idle;
 461
 462         idle = empathy_idle_dup_singleton ();
 463         presence = empathy_idle_get_state (idle);
 464         g_object_unref (idle);
 465
 466         if (presence != MC_PRESENCE_AVAILABLE &&
 467                 presence != MC_PRESENCE_UNSET) {
 468                 return FALSE;
 469         }
 470
 471         return TRUE;
 472 }