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., 51 Franklin St, Fifth Floor,
  19  * Boston, MA  02110-1301  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 #include <telepathy-glib/util.h>
  39
  40 #include "empathy-utils.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 /* Translation between presence types and string */
  53 static struct {
  54         gchar *name;
  55         TpConnectionPresenceType type;
  56 } presence_types[] = {
  57         { "available", TP_CONNECTION_PRESENCE_TYPE_AVAILABLE },
  58         { "busy",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
  59         { "away",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
  60         { "ext_away",  TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
  61         { "hidden",    TP_CONNECTION_PRESENCE_TYPE_HIDDEN },
  62         { "offline",   TP_CONNECTION_PRESENCE_TYPE_OFFLINE },
  63         { "unset",     TP_CONNECTION_PRESENCE_TYPE_UNSET },
  64         { "unknown",   TP_CONNECTION_PRESENCE_TYPE_UNKNOWN },
  65         { "error",     TP_CONNECTION_PRESENCE_TYPE_ERROR },
  66         /* alternative names */
  67         { "dnd",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
  68         { "brb",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
  69         { "xa",       TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
  70         { NULL, },
  71 };
  72
  73
  74
  75 void
  76 empathy_init (void)
  77 {
  78         static gboolean initialized = FALSE;
  79
  80         if (initialized)
  81                 return;
  82
  83         g_type_init ();
  84
  85         /* Setup gettext */
  86         bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
  87         bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
  88
  89         /* Setup debug output for empathy and telepathy-glib */
  90         if (g_getenv ("EMPATHY_TIMING") != NULL) {
  91                 g_log_set_default_handler (tp_debug_timestamped_log_handler, NULL);
  92         }
  93         empathy_debug_set_flags (g_getenv ("EMPATHY_DEBUG"));
  94         tp_debug_divert_messages (g_getenv ("EMPATHY_LOGFILE"));
  95
  96         emp_cli_init ();
  97
  98         initialized = TRUE;
  99 }
 100
 101 gchar *
 102 empathy_substring (const gchar *str,
 103                   gint         start,
 104                   gint         end)
 105 {
 106         return g_strndup (str + start, end - start);
 107 }
 108
 109 gint
 110 empathy_strcasecmp (const gchar *s1,
 111                    const gchar *s2)
 112 {
 113         return empathy_strncasecmp (s1, s2, -1);
 114 }
 115
 116 gint
 117 empathy_strncasecmp (const gchar *s1,
 118                     const gchar *s2,
 119                     gsize        n)
 120 {
 121         gchar *u1, *u2;
 122         gint   ret_val;
 123
 124         u1 = g_utf8_casefold (s1, n);
 125         u2 = g_utf8_casefold (s2, n);
 126
 127         ret_val = g_utf8_collate (u1, u2);
 128         g_free (u1);
 129         g_free (u2);
 130
 131         return ret_val;
 132 }
 133
 134 gboolean
 135 empathy_xml_validate (xmlDoc      *doc,
 136                      const gchar *dtd_filename)
 137 {
 138         gchar        *path, *escaped;
 139         xmlValidCtxt  cvp;
 140         xmlDtd       *dtd;
 141         gboolean      ret;
 142
 143         path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), "libempathy",
 144                                  dtd_filename, NULL);
 145         if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
 146                 g_free (path);
 147                 path = g_build_filename (DATADIR, "empathy", dtd_filename, NULL);
 148         }
 149         DEBUG ("Loading dtd file %s", path);
 150
 151         /* The list of valid chars is taken from libxml. */
 152         escaped = xmlURIEscapeStr (path, ":@&=+$,/?;");
 153         g_free (path);
 154
 155         memset (&cvp, 0, sizeof (cvp));
 156         dtd = xmlParseDTD (NULL, escaped);
 157         ret = xmlValidateDtd (&cvp, doc, dtd);
 158
 159         xmlFree (escaped);
 160         xmlFreeDtd (dtd);
 161
 162         return ret;
 163 }
 164
 165 xmlNodePtr
 166 empathy_xml_node_get_child (xmlNodePtr   node,
 167                            const gchar *child_name)
 168 {
 169         xmlNodePtr l;
 170
 171         g_return_val_if_fail (node != NULL, NULL);
 172         g_return_val_if_fail (child_name != NULL, NULL);
 173
 174         for (l = node->children; l; l = l->next) {
 175                 if (l->name && strcmp (l->name, child_name) == 0) {
 176                         return l;
 177                 }
 178         }
 179
 180         return NULL;
 181 }
 182
 183 xmlChar *
 184 empathy_xml_node_get_child_content (xmlNodePtr   node,
 185                                    const gchar *child_name)
 186 {
 187         xmlNodePtr l;
 188
 189         g_return_val_if_fail (node != NULL, NULL);
 190         g_return_val_if_fail (child_name != NULL, NULL);
 191
 192         l = empathy_xml_node_get_child (node, child_name);
 193         if (l) {
 194                 return xmlNodeGetContent (l);
 195         }
 196
 197         return NULL;
 198 }
 199
 200 xmlNodePtr
 201 empathy_xml_node_find_child_prop_value (xmlNodePtr   node,
 202                                        const gchar *prop_name,
 203                                        const gchar *prop_value)
 204 {
 205         xmlNodePtr l;
 206         xmlNodePtr found = NULL;
 207
 208         g_return_val_if_fail (node != NULL, NULL);
 209         g_return_val_if_fail (prop_name != NULL, NULL);
 210         g_return_val_if_fail (prop_value != NULL, NULL);
 211
 212         for (l = node->children; l && !found; l = l->next) {
 213                 xmlChar *prop;
 214
 215                 if (!xmlHasProp (l, prop_name)) {
 216                         continue;
 217                 }
 218
 219                 prop = xmlGetProp (l, prop_name);
 220                 if (prop && strcmp (prop, prop_value) == 0) {
 221                         found = l;
 222                 }
 223
 224                 xmlFree (prop);
 225         }
 226
 227         return found;
 228 }
 229
 230 const gchar *
 231 empathy_presence_get_default_message (TpConnectionPresenceType presence)
 232 {
 233         switch (presence) {
 234         case TP_CONNECTION_PRESENCE_TYPE_AVAILABLE:
 235                 return _("Available");
 236         case TP_CONNECTION_PRESENCE_TYPE_BUSY:
 237                 return _("Busy");
 238         case TP_CONNECTION_PRESENCE_TYPE_AWAY:
 239         case TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY:
 240                 return _("Away");
 241         case TP_CONNECTION_PRESENCE_TYPE_HIDDEN:
 242                 return _("Hidden");
 243         case TP_CONNECTION_PRESENCE_TYPE_OFFLINE:
 244                 return _("Offline");
 245         case TP_CONNECTION_PRESENCE_TYPE_UNSET:
 246         case TP_CONNECTION_PRESENCE_TYPE_UNKNOWN:
 247         case TP_CONNECTION_PRESENCE_TYPE_ERROR:
 248                 return NULL;
 249         }
 250
 251         return NULL;
 252 }
 253
 254 const gchar *
 255 empathy_presence_to_str (TpConnectionPresenceType presence)
 256 {
 257         int i;
 258
 259         for (i = 0 ; presence_types[i].name != NULL; i++)
 260                 if (presence == presence_types[i].type)
 261                         return presence_types[i].name;
 262
 263         return NULL;
 264 }
 265
 266 TpConnectionPresenceType
 267 empathy_presence_from_str (const gchar *str)
 268 {
 269         int i;
 270
 271         for (i = 0 ; presence_types[i].name != NULL; i++)
 272                 if (!tp_strdiff (str, presence_types[i].name))
 273                         return presence_types[i].type;
 274
 275         return TP_CONNECTION_PRESENCE_TYPE_UNSET;
 276 }
 277
 278 gchar *
 279 empathy_file_lookup (const gchar *filename, const gchar *subdir)
 280 {
 281         gchar *path;
 282
 283         if (!subdir) {
 284                 subdir = ".";
 285         }
 286
 287         path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), subdir, filename, NULL);
 288         if (!g_file_test (path, G_FILE_TEST_EXISTS)) {
 289                 g_free (path);
 290                 path = g_build_filename (DATADIR, "empathy", filename, NULL);
 291         }
 292
 293         return path;
 294 }
 295
 296 guint
 297 empathy_proxy_hash (gconstpointer key)
 298 {
 299         TpProxy      *proxy = TP_PROXY (key);
 300         TpProxyClass *proxy_class = TP_PROXY_GET_CLASS (key);
 301
 302         g_return_val_if_fail (TP_IS_PROXY (proxy), 0);
 303         g_return_val_if_fail (proxy_class->must_have_unique_name, 0);
 304
 305         return g_str_hash (proxy->object_path) ^ g_str_hash (proxy->bus_name);
 306 }
 307
 308 gboolean
 309 empathy_proxy_equal (gconstpointer a,
 310                      gconstpointer b)
 311 {
 312         TpProxy *proxy_a = TP_PROXY (a);
 313         TpProxy *proxy_b = TP_PROXY (b);
 314         TpProxyClass *proxy_a_class = TP_PROXY_GET_CLASS (a);
 315         TpProxyClass *proxy_b_class = TP_PROXY_GET_CLASS (b);
 316
 317         g_return_val_if_fail (TP_IS_PROXY (proxy_a), FALSE);
 318         g_return_val_if_fail (TP_IS_PROXY (proxy_b), FALSE);
 319         g_return_val_if_fail (proxy_a_class->must_have_unique_name, 0);
 320         g_return_val_if_fail (proxy_b_class->must_have_unique_name, 0);
 321
 322         return g_str_equal (proxy_a->object_path, proxy_b->object_path) &&
 323                g_str_equal (proxy_a->bus_name, proxy_b->bus_name);
 324 }
 325
 326 gboolean
 327 empathy_check_available_state (void)
 328 {
 329         TpConnectionPresenceType presence;
 330         EmpathyIdle *idle;
 331
 332         idle = empathy_idle_dup_singleton ();
 333         presence = empathy_idle_get_state (idle);
 334         g_object_unref (idle);
 335
 336         if (presence != TP_CONNECTION_PRESENCE_TYPE_AVAILABLE &&
 337                 presence != TP_CONNECTION_PRESENCE_TYPE_UNSET) {
 338                 return FALSE;
 339         }
 340
 341         return TRUE;
 342 }
 343
 344 gint
 345 empathy_uint_compare (gconstpointer a,
 346                       gconstpointer b)
 347 {
 348         return *(guint *) a - *(guint *) b;
 349 }
 350
 351 gchar *
 352 empathy_protocol_icon_name (const gchar *protocol)
 353 {
 354   return g_strdup_printf ("im-%s", protocol);
 355 }
 356
 357 GType
 358 empathy_type_dbus_ao (void)
 359 {
 360   static GType t = 0;
 361
 362   if (G_UNLIKELY (t == 0))
 363      t = dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_OBJECT_PATH);
 364
 365   return t;
 366 }
 367
 368 const char *
 369 empathy_protocol_name_to_display_name (const gchar *proto_name)
 370 {
 371   int i;
 372   static struct {
 373     const gchar *proto;
 374     const gchar *display;
 375     gboolean translated;
 376   } names[] = {
 377     { "jabber", "Jabber", FALSE },
 378     { "msn", "MSN", FALSE, },
 379     { "local-xmpp", N_("People Nearby"), TRUE },
 380     { "irc", "IRC", FALSE },
 381     { "icq", "ICQ", FALSE },
 382     { "aim", "AIM", FALSE },
 383     { "yahoo", "Yahoo!", FALSE },
 384     { "yahoojp", N_("Yahoo! Japan"), TRUE },
 385     { "facebook", N_("Facebook Chat"), TRUE },
 386     { "groupwise", "GroupWise", FALSE },
 387     { "sip", "SIP", FALSE },
 388     { NULL, NULL }
 389   };
 390
 391   for (i = 0; names[i].proto != NULL; i++)
 392     {
 393       if (!tp_strdiff (proto_name, names[i].proto))
 394         {
 395           if (names[i].translated)
 396             return _(names[i].display);
 397           else
 398             return names[i].display;
 399         }
 400     }
 401
 402   return NULL;
 403 }
 404