libempathy/empathy-utils.c

   1 /*
   2  * Copyright (C) 2003-2007 Imendio AB
   3  * Copyright (C) 2007-2011 Collabora Ltd.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (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 GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public
  16  * License along with this program; if not, write to the
  17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  18  * Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Richard Hult <richard@imendio.com>
  21  *          Martyn Russell <martyn@imendio.com>
  22  *          Xavier Claessens <xclaesse@gmail.com>
  23  *
  24  * Some snippets are taken from GnuTLS 2.8.6, which is distributed under the
  25  * same GNU Lesser General Public License 2.1 (or later) version. See
  26  * empathy_get_x509_certified_hostname ().
  27  */
  28
  29 #include "config.h"
  30 #include "empathy-utils.h"
  31
  32 #include <glib/gi18n-lib.h>
  33 #include <dbus/dbus-protocol.h>
  34 #include <math.h>
  35 #include <telepathy-glib/telepathy-glib-dbus.h>
  36
  37 #include "empathy-client-factory.h"
  38 #include "extensions.h"
  39
  40 #include <math.h>
  41
  42 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  43 #include "empathy-debug.h"
  44
  45 /* Translation between presence types and string */
  46 static struct {
  47   const gchar *name;
  48   TpConnectionPresenceType type;
  49 } presence_types[] = {
  50   { "available", TP_CONNECTION_PRESENCE_TYPE_AVAILABLE },
  51   { "busy",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
  52   { "away",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
  53   { "ext_away",  TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
  54   { "hidden",    TP_CONNECTION_PRESENCE_TYPE_HIDDEN },
  55   { "offline",   TP_CONNECTION_PRESENCE_TYPE_OFFLINE },
  56   { "unset",     TP_CONNECTION_PRESENCE_TYPE_UNSET },
  57   { "unknown",   TP_CONNECTION_PRESENCE_TYPE_UNKNOWN },
  58   { "error",     TP_CONNECTION_PRESENCE_TYPE_ERROR },
  59   /* alternative names */
  60   { "dnd",      TP_CONNECTION_PRESENCE_TYPE_BUSY },
  61   { "brb",      TP_CONNECTION_PRESENCE_TYPE_AWAY },
  62   { "xa",       TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY },
  63   { NULL, },
  64 };
  65
  66 static gboolean
  67 properties_contains (gchar **list,
  68                      gint length,
  69                      const gchar *property);
  70
  71 static gboolean
  72 check_writeable_property (TpConnection *connection,
  73                           FolksIndividual *individual,
  74                           gchar *property);
  75
  76 void
  77 empathy_init (void)
  78 {
  79   static gboolean initialized = FALSE;
  80   TpAccountManager *am;
  81   EmpathyClientFactory *factory;
  82
  83   if (initialized)
  84     return;
  85
  86   g_type_init ();
  87
  88   /* Setup gettext */
  89   bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
  90   bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
  91
  92   /* Setup debug output for empathy and telepathy-glib */
  93   if (g_getenv ("EMPATHY_TIMING") != NULL)
  94     g_log_set_default_handler (tp_debug_timestamped_log_handler, NULL);
  95
  96   empathy_debug_set_flags (g_getenv ("EMPATHY_DEBUG"));
  97   tp_debug_divert_messages (g_getenv ("EMPATHY_LOGFILE"));
  98
  99   emp_cli_init ();
 100
 101   initialized = TRUE;
 102
 103   factory = empathy_client_factory_dup ();
 104   am = tp_account_manager_new_with_factory (TP_SIMPLE_CLIENT_FACTORY (factory));
 105   tp_account_manager_set_default (am);
 106
 107   g_object_unref (factory);
 108   g_object_unref (am);
 109 }
 110
 111 xmlNodePtr
 112 empathy_xml_node_get_child (xmlNodePtr   node,
 113     const gchar *child_name)
 114 {
 115   xmlNodePtr l;
 116
 117   g_return_val_if_fail (node != NULL, NULL);
 118   g_return_val_if_fail (child_name != NULL, NULL);
 119
 120   for (l = node->children; l; l = l->next)
 121     {
 122       if (l->name && strcmp ((const gchar *) l->name, child_name) == 0)
 123         return l;
 124     }
 125
 126   return NULL;
 127 }
 128
 129 xmlChar *
 130 empathy_xml_node_get_child_content (xmlNodePtr   node,
 131     const gchar *child_name)
 132 {
 133   xmlNodePtr l;
 134
 135   g_return_val_if_fail (node != NULL, NULL);
 136   g_return_val_if_fail (child_name != NULL, NULL);
 137
 138   l = empathy_xml_node_get_child (node, child_name);
 139   if (l != NULL)
 140     return xmlNodeGetContent (l);
 141
 142   return NULL;
 143 }
 144
 145 xmlNodePtr
 146 empathy_xml_node_find_child_prop_value (xmlNodePtr   node,
 147     const gchar *prop_name,
 148     const gchar *prop_value)
 149 {
 150   xmlNodePtr l;
 151   xmlNodePtr found = NULL;
 152
 153   g_return_val_if_fail (node != NULL, NULL);
 154   g_return_val_if_fail (prop_name != NULL, NULL);
 155   g_return_val_if_fail (prop_value != NULL, NULL);
 156
 157   for (l = node->children; l && !found; l = l->next)
 158     {
 159       xmlChar *prop;
 160
 161       if (!xmlHasProp (l, (const xmlChar *) prop_name))
 162         continue;
 163
 164       prop = xmlGetProp (l, (const xmlChar *) prop_name);
 165       if (prop && strcmp ((const gchar *) prop, prop_value) == 0)
 166         found = l;
 167
 168       xmlFree (prop);
 169     }
 170
 171   return found;
 172 }
 173
 174 const gchar *
 175 empathy_presence_get_default_message (TpConnectionPresenceType presence)
 176 {
 177   switch (presence)
 178     {
 179       case TP_CONNECTION_PRESENCE_TYPE_AVAILABLE:
 180         return _("Available");
 181       case TP_CONNECTION_PRESENCE_TYPE_BUSY:
 182         return _("Busy");
 183       case TP_CONNECTION_PRESENCE_TYPE_AWAY:
 184       case TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY:
 185         return _("Away");
 186       case TP_CONNECTION_PRESENCE_TYPE_HIDDEN:
 187         return _("Invisible");
 188       case TP_CONNECTION_PRESENCE_TYPE_OFFLINE:
 189         return _("Offline");
 190       case TP_CONNECTION_PRESENCE_TYPE_UNKNOWN:
 191         /* translators: presence type is unknown */
 192         return C_("presence", "Unknown");
 193       case TP_CONNECTION_PRESENCE_TYPE_UNSET:
 194       case TP_CONNECTION_PRESENCE_TYPE_ERROR:
 195       default:
 196         return NULL;
 197     }
 198
 199   return NULL;
 200 }
 201
 202 const gchar *
 203 empathy_presence_to_str (TpConnectionPresenceType presence)
 204 {
 205   int i;
 206
 207   for (i = 0 ; presence_types[i].name != NULL; i++)
 208     if (presence == presence_types[i].type)
 209       return presence_types[i].name;
 210
 211   return NULL;
 212 }
 213
 214 TpConnectionPresenceType
 215 empathy_presence_from_str (const gchar *str)
 216 {
 217   int i;
 218
 219   for (i = 0 ; presence_types[i].name != NULL; i++)
 220     if (!tp_strdiff (str, presence_types[i].name))
 221       return presence_types[i].type;
 222
 223   return TP_CONNECTION_PRESENCE_TYPE_UNSET;
 224 }
 225
 226 static const gchar *
 227 empathy_status_reason_get_default_message (TpConnectionStatusReason reason)
 228 {
 229   switch (reason)
 230     {
 231       case TP_CONNECTION_STATUS_REASON_NONE_SPECIFIED:
 232         return _("No reason specified");
 233       case TP_CONNECTION_STATUS_REASON_REQUESTED:
 234         return _("Status is set to offline");
 235       case TP_CONNECTION_STATUS_REASON_NETWORK_ERROR:
 236         return _("Network error");
 237       case TP_CONNECTION_STATUS_REASON_AUTHENTICATION_FAILED:
 238         return _("Authentication failed");
 239       case TP_CONNECTION_STATUS_REASON_ENCRYPTION_ERROR:
 240         return _("Encryption error");
 241       case TP_CONNECTION_STATUS_REASON_NAME_IN_USE:
 242         return _("Name in use");
 243       case TP_CONNECTION_STATUS_REASON_CERT_NOT_PROVIDED:
 244         return _("Certificate not provided");
 245       case TP_CONNECTION_STATUS_REASON_CERT_UNTRUSTED:
 246         return _("Certificate untrusted");
 247       case TP_CONNECTION_STATUS_REASON_CERT_EXPIRED:
 248         return _("Certificate expired");
 249       case TP_CONNECTION_STATUS_REASON_CERT_NOT_ACTIVATED:
 250         return _("Certificate not activated");
 251       case TP_CONNECTION_STATUS_REASON_CERT_HOSTNAME_MISMATCH:
 252         return _("Certificate hostname mismatch");
 253       case TP_CONNECTION_STATUS_REASON_CERT_FINGERPRINT_MISMATCH:
 254         return _("Certificate fingerprint mismatch");
 255       case TP_CONNECTION_STATUS_REASON_CERT_SELF_SIGNED:
 256         return _("Certificate self-signed");
 257       case TP_CONNECTION_STATUS_REASON_CERT_OTHER_ERROR:
 258         return _("Certificate error");
 259       default:
 260         return _("Unknown reason");
 261     }
 262 }
 263
 264 static GHashTable *
 265 create_errors_to_message_hash (void)
 266 {
 267   GHashTable *errors;
 268
 269   errors = g_hash_table_new (g_str_hash, g_str_equal);
 270   g_hash_table_insert (errors, TP_ERROR_STR_NETWORK_ERROR, _("Network error"));
 271   g_hash_table_insert (errors, TP_ERROR_STR_AUTHENTICATION_FAILED,
 272     _("Authentication failed"));
 273   g_hash_table_insert (errors, TP_ERROR_STR_ENCRYPTION_ERROR,
 274     _("Encryption error"));
 275   g_hash_table_insert (errors, TP_ERROR_STR_CERT_NOT_PROVIDED,
 276     _("Certificate not provided"));
 277   g_hash_table_insert (errors, TP_ERROR_STR_CERT_UNTRUSTED,
 278     _("Certificate untrusted"));
 279   g_hash_table_insert (errors, TP_ERROR_STR_CERT_EXPIRED,
 280     _("Certificate expired"));
 281   g_hash_table_insert (errors, TP_ERROR_STR_CERT_NOT_ACTIVATED,
 282     _("Certificate not activated"));
 283   g_hash_table_insert (errors, TP_ERROR_STR_CERT_HOSTNAME_MISMATCH,
 284     _("Certificate hostname mismatch"));
 285   g_hash_table_insert (errors, TP_ERROR_STR_CERT_FINGERPRINT_MISMATCH,
 286     _("Certificate fingerprint mismatch"));
 287   g_hash_table_insert (errors, TP_ERROR_STR_CERT_SELF_SIGNED,
 288     _("Certificate self-signed"));
 289   g_hash_table_insert (errors, TP_ERROR_STR_CANCELLED,
 290     _("Status is set to offline"));
 291   g_hash_table_insert (errors, TP_ERROR_STR_ENCRYPTION_NOT_AVAILABLE,
 292     _("Encryption is not available"));
 293   g_hash_table_insert (errors, TP_ERROR_STR_CERT_INVALID,
 294     _("Certificate is invalid"));
 295   g_hash_table_insert (errors, TP_ERROR_STR_CONNECTION_REFUSED,
 296     _("Connection has been refused"));
 297   g_hash_table_insert (errors, TP_ERROR_STR_CONNECTION_FAILED,
 298     _("Connection can't be established"));
 299   g_hash_table_insert (errors, TP_ERROR_STR_CONNECTION_LOST,
 300     _("Connection has been lost"));
 301   g_hash_table_insert (errors, TP_ERROR_STR_ALREADY_CONNECTED,
 302     _("This account is already connected to the server"));
 303   g_hash_table_insert (errors, TP_ERROR_STR_CONNECTION_REPLACED,
 304     _("Connection has been replaced by a new connection using the "
 305     "same resource"));
 306   g_hash_table_insert (errors, TP_ERROR_STR_REGISTRATION_EXISTS,
 307     _("The account already exists on the server"));
 308   g_hash_table_insert (errors, TP_ERROR_STR_SERVICE_BUSY,
 309     _("Server is currently too busy to handle the connection"));
 310   g_hash_table_insert (errors, TP_ERROR_STR_CERT_REVOKED,
 311     _("Certificate has been revoked"));
 312   g_hash_table_insert (errors, TP_ERROR_STR_CERT_INSECURE,
 313     _("Certificate uses an insecure cipher algorithm or is "
 314     "cryptographically weak"));
 315   g_hash_table_insert (errors, TP_ERROR_STR_CERT_LIMIT_EXCEEDED,
 316     _("The length of the server certificate, or the depth of the "
 317     "server certificate chain, exceed the limits imposed by the "
 318     "cryptography library"));
 319   g_hash_table_insert (errors, TP_ERROR_STR_SOFTWARE_UPGRADE_REQUIRED,
 320     _("Your software is too old"));
 321   g_hash_table_insert (errors, DBUS_ERROR_NO_REPLY,
 322     _("Internal error"));
 323
 324   return errors;
 325 }
 326
 327 static const gchar *
 328 empathy_dbus_error_name_get_default_message  (const gchar *error)
 329 {
 330   static GHashTable *errors_to_message = NULL;
 331
 332   if (error == NULL)
 333     return NULL;
 334
 335   if (G_UNLIKELY (errors_to_message == NULL))
 336     errors_to_message = create_errors_to_message_hash ();
 337
 338   return g_hash_table_lookup (errors_to_message, error);
 339 }
 340
 341 const gchar *
 342 empathy_account_get_error_message (TpAccount *account,
 343     gboolean *user_requested)
 344 {
 345   const gchar *dbus_error;
 346   const gchar *message;
 347   const GHashTable *details = NULL;
 348   TpConnectionStatusReason reason;
 349
 350   dbus_error = tp_account_get_detailed_error (account, &details);
 351
 352   if (user_requested != NULL)
 353     {
 354       if (tp_asv_get_boolean (details, "user-requested", NULL))
 355         *user_requested = TRUE;
 356       else
 357         *user_requested = FALSE;
 358     }
 359
 360   message = empathy_dbus_error_name_get_default_message (dbus_error);
 361   if (message != NULL)
 362     return message;
 363
 364   tp_account_get_connection_status (account, &reason);
 365
 366   DEBUG ("Don't understand error '%s'; fallback to the status reason (%u)",
 367     dbus_error, reason);
 368
 369   return empathy_status_reason_get_default_message (reason);
 370 }
 371
 372 gchar *
 373 empathy_file_lookup (const gchar *filename, const gchar *subdir)
 374 {
 375   gchar *path;
 376
 377   if (subdir == NULL)
 378     subdir = ".";
 379
 380   path = g_build_filename (g_getenv ("EMPATHY_SRCDIR"), subdir, filename, NULL);
 381   if (!g_file_test (path, G_FILE_TEST_EXISTS))
 382     {
 383       g_free (path);
 384       path = g_build_filename (DATADIR, "empathy", filename, NULL);
 385     }
 386
 387   return path;
 388 }
 389
 390 gint
 391 empathy_uint_compare (gconstpointer a,
 392     gconstpointer b)
 393 {
 394   return *(guint *) a - *(guint *) b;
 395 }
 396
 397 GType
 398 empathy_type_dbus_ao (void)
 399 {
 400   static GType t = 0;
 401
 402   if (G_UNLIKELY (t == 0))
 403      t = dbus_g_type_get_collection ("GPtrArray", DBUS_TYPE_G_OBJECT_PATH);
 404
 405   return t;
 406 }
 407
 408 gboolean
 409 empathy_account_manager_get_accounts_connected (gboolean *connecting)
 410 {
 411   TpAccountManager *manager;
 412   GList *accounts, *l;
 413   gboolean out_connecting = FALSE;
 414   gboolean out_connected = FALSE;
 415
 416   manager = tp_account_manager_dup ();
 417
 418   if (G_UNLIKELY (!tp_proxy_is_prepared (manager,
 419           TP_ACCOUNT_MANAGER_FEATURE_CORE)))
 420     g_critical (G_STRLOC ": %s called before AccountManager ready", G_STRFUNC);
 421
 422   accounts = tp_account_manager_dup_valid_accounts (manager);
 423
 424   for (l = accounts; l != NULL; l = l->next)
 425     {
 426       TpConnectionStatus s = tp_account_get_connection_status (
 427           TP_ACCOUNT (l->data), NULL);
 428
 429       if (s == TP_CONNECTION_STATUS_CONNECTING)
 430         out_connecting = TRUE;
 431       else if (s == TP_CONNECTION_STATUS_CONNECTED)
 432         out_connected = TRUE;
 433
 434       if (out_connecting && out_connected)
 435         break;
 436     }
 437
 438   g_list_free_full (accounts, g_object_unref);
 439   g_object_unref (manager);
 440
 441   if (connecting != NULL)
 442     *connecting = out_connecting;
 443
 444   return out_connected;
 445 }
 446
 447 /* Translate Folks' general presence type to the Tp presence type */
 448 TpConnectionPresenceType
 449 empathy_folks_presence_type_to_tp (FolksPresenceType type)
 450 {
 451   return (TpConnectionPresenceType) type;
 452 }
 453
 454 /* Returns TRUE if the given Individual contains a TpContact */
 455 gboolean
 456 empathy_folks_individual_contains_contact (FolksIndividual *individual)
 457 {
 458   GeeSet *personas;
 459   GeeIterator *iter;
 460   gboolean retval = FALSE;
 461
 462   g_return_val_if_fail (FOLKS_IS_INDIVIDUAL (individual), FALSE);
 463
 464   personas = folks_individual_get_personas (individual);
 465   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 466   while (!retval && gee_iterator_next (iter))
 467     {
 468       FolksPersona *persona = gee_iterator_get (iter);
 469       TpContact *contact = NULL;
 470
 471       if (empathy_folks_persona_is_interesting (persona))
 472         contact = tpf_persona_get_contact (TPF_PERSONA (persona));
 473
 474       g_clear_object (&persona);
 475
 476       if (contact != NULL)
 477         retval = TRUE;
 478     }
 479   g_clear_object (&iter);
 480
 481   return retval;
 482 }
 483
 484 /* TODO: this needs to be eliminated (and replaced in some cases with user
 485  * prompts) when we break the assumption that FolksIndividuals are 1:1 with
 486  * TpContacts */
 487
 488 /* Retrieve the EmpathyContact corresponding to the first TpContact contained
 489  * within the given Individual. Note that this is a temporary convenience. See
 490  * the TODO above. */
 491 EmpathyContact *
 492 empathy_contact_dup_from_folks_individual (FolksIndividual *individual)
 493 {
 494   GeeSet *personas;
 495   GeeIterator *iter;
 496   EmpathyContact *contact = NULL;
 497
 498   g_return_val_if_fail (FOLKS_IS_INDIVIDUAL (individual), NULL);
 499
 500   personas = folks_individual_get_personas (individual);
 501   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 502   while (gee_iterator_next (iter) && (contact == NULL))
 503     {
 504       TpfPersona *persona = gee_iterator_get (iter);
 505
 506       if (empathy_folks_persona_is_interesting (FOLKS_PERSONA (persona)))
 507         {
 508           TpContact *tp_contact;
 509
 510           tp_contact = tpf_persona_get_contact (persona);
 511           if (tp_contact != NULL)
 512             {
 513               contact = empathy_contact_dup_from_tp_contact (tp_contact);
 514               empathy_contact_set_persona (contact, FOLKS_PERSONA (persona));
 515             }
 516         }
 517       g_clear_object (&persona);
 518     }
 519   g_clear_object (&iter);
 520
 521   if (contact == NULL)
 522     {
 523       DEBUG ("Can't create an EmpathyContact for Individual %s",
 524           folks_individual_get_id (individual));
 525     }
 526
 527   return contact;
 528 }
 529
 530 TpChannelGroupChangeReason
 531 tp_channel_group_change_reason_from_folks_groups_change_reason (
 532     FolksGroupDetailsChangeReason reason)
 533 {
 534   return (TpChannelGroupChangeReason) reason;
 535 }
 536
 537 TpfPersonaStore *
 538 empathy_dup_persona_store_for_connection (TpConnection *connection)
 539 {
 540   FolksBackendStore *backend_store;
 541   FolksBackend *backend;
 542   TpfPersonaStore *result = NULL;
 543
 544   backend_store = folks_backend_store_dup ();
 545   backend = folks_backend_store_dup_backend_by_name (backend_store,
 546       "telepathy");
 547   if (backend != NULL)
 548     {
 549       GeeMap *stores_map;
 550       GeeMapIterator *iter;
 551
 552       stores_map = folks_backend_get_persona_stores (backend);
 553       iter = gee_map_map_iterator (stores_map);
 554       while (gee_map_iterator_next (iter))
 555         {
 556           TpfPersonaStore *persona_store = gee_map_iterator_get_value (iter);
 557           TpAccount *account;
 558           TpConnection *conn_cur;
 559
 560           account = tpf_persona_store_get_account (persona_store);
 561           conn_cur = tp_account_get_connection (account);
 562           if (conn_cur == connection)
 563             result = g_object_ref (persona_store);
 564
 565           g_clear_object (&persona_store);
 566         }
 567       g_clear_object (&iter);
 568     }
 569
 570   g_object_unref (backend);
 571   g_object_unref (backend_store);
 572
 573   return result;
 574 }
 575
 576 gboolean
 577 empathy_connection_can_add_personas (TpConnection *connection)
 578 {
 579   gboolean retval;
 580   FolksPersonaStore *persona_store;
 581
 582   g_return_val_if_fail (TP_IS_CONNECTION (connection), FALSE);
 583
 584   if (tp_connection_get_status (connection, NULL) !=
 585           TP_CONNECTION_STATUS_CONNECTED)
 586       return FALSE;
 587
 588   persona_store = FOLKS_PERSONA_STORE (
 589       empathy_dup_persona_store_for_connection (connection));
 590
 591   retval = (folks_persona_store_get_can_add_personas (persona_store) ==
 592       FOLKS_MAYBE_BOOL_TRUE);
 593
 594   g_clear_object (&persona_store);
 595
 596   return retval;
 597 }
 598
 599 gboolean
 600 empathy_connection_can_alias_personas (TpConnection *connection,
 601                                        FolksIndividual *individual)
 602 {
 603   gboolean retval;
 604
 605   g_return_val_if_fail (TP_IS_CONNECTION (connection), FALSE);
 606
 607   if (tp_connection_get_status (connection, NULL) !=
 608           TP_CONNECTION_STATUS_CONNECTED)
 609       return FALSE;
 610
 611   retval = check_writeable_property (connection, individual, "alias");
 612
 613   return retval;
 614 }
 615
 616 gboolean
 617 empathy_connection_can_group_personas (TpConnection *connection,
 618                                        FolksIndividual *individual)
 619 {
 620   gboolean retval;
 621
 622   g_return_val_if_fail (TP_IS_CONNECTION (connection), FALSE);
 623
 624   if (tp_connection_get_status (connection, NULL) !=
 625           TP_CONNECTION_STATUS_CONNECTED)
 626       return FALSE;
 627
 628   retval = check_writeable_property (connection, individual, "groups");
 629
 630   return retval;
 631 }
 632
 633 gboolean
 634 empathy_folks_persona_is_interesting (FolksPersona *persona)
 635 {
 636   /* We're not interested in non-Telepathy personas */
 637   if (!TPF_IS_PERSONA (persona))
 638     return FALSE;
 639
 640   /* We're not interested in user personas which haven't been added to the
 641    * contact list (see bgo#637151). */
 642   if (folks_persona_get_is_user (persona) &&
 643       !tpf_persona_get_is_in_contact_list (TPF_PERSONA (persona)))
 644     {
 645       return FALSE;
 646     }
 647
 648   return TRUE;
 649 }
 650
 651 gchar *
 652 empathy_get_x509_certificate_hostname (gnutls_x509_crt_t cert)
 653 {
 654   gchar dns_name[256];
 655   gsize dns_name_size;
 656   gint idx;
 657   gint res = 0;
 658
 659   /* this snippet is taken from GnuTLS.
 660    * see gnutls/lib/x509/rfc2818_hostname.c
 661    */
 662   for (idx = 0; res >= 0; idx++)
 663     {
 664       dns_name_size = sizeof (dns_name);
 665       res = gnutls_x509_crt_get_subject_alt_name (cert, idx,
 666           dns_name, &dns_name_size, NULL);
 667
 668       if (res == GNUTLS_SAN_DNSNAME || res == GNUTLS_SAN_IPADDRESS)
 669         return g_strndup (dns_name, dns_name_size);
 670     }
 671
 672   dns_name_size = sizeof (dns_name);
 673   res = gnutls_x509_crt_get_dn_by_oid (cert, GNUTLS_OID_X520_COMMON_NAME,
 674       0, 0, dns_name, &dns_name_size);
 675
 676   if (res >= 0)
 677     return g_strndup (dns_name, dns_name_size);
 678
 679   return NULL;
 680 }
 681
 682 gchar *
 683 empathy_format_currency (gint amount,
 684     guint scale,
 685     const gchar *currency)
 686 {
 687 #define MINUS "\342\210\222"
 688 #define EURO "\342\202\254"
 689 #define YEN "\302\245"
 690 #define POUND "\302\243"
 691
 692   /* localised representations of currency */
 693   /* FIXME: check these, especially negatives and decimals */
 694   static const struct {
 695     const char *currency;
 696     const char *positive;
 697     const char *negative;
 698     const char *decimal;
 699   } currencies[] = {
 700     /* sym   positive    negative          decimal */
 701     { "EUR", EURO "%s",  MINUS EURO "%s",  "." },
 702     { "USD", "$%s",      MINUS "$%s",      "." },
 703     { "JPY", YEN "%s"    MINUS YEN "%s",   "." },
 704     { "GBP", POUND "%s", MINUS POUND "%s", "." },
 705     { "PLN", "%s zl",    MINUS "%s zl",    "." },
 706     { "BRL", "R$%s",     MINUS "R$%s",     "." },
 707     { "SEK", "%s kr",    MINUS "%s kr",    "." },
 708     { "DKK", "kr %s",    "kr " MINUS "%s", "." },
 709     { "HKD", "$%s",      MINUS "$%s",      "." },
 710     { "CHF", "%s Fr.",   MINUS "%s Fr.",   "." },
 711     { "NOK", "kr %s",    "kr" MINUS "%s",  "," },
 712     { "CAD", "$%s",      MINUS "$%s",      "." },
 713     { "TWD", "$%s",      MINUS "$%s",      "." },
 714     { "AUD", "$%s",      MINUS "$%s",      "." },
 715   };
 716
 717   const char *positive = "%s";
 718   const char *negative = MINUS "%s";
 719   const char *decimal = ".";
 720   char *fmt_amount, *money;
 721   guint i;
 722
 723   /* get the localised currency format */
 724   for (i = 0; i < G_N_ELEMENTS (currencies); i++)
 725     {
 726       if (!tp_strdiff (currency, currencies[i].currency))
 727         {
 728           positive = currencies[i].positive;
 729           negative = currencies[i].negative;
 730           decimal = currencies[i].decimal;
 731           break;
 732         }
 733     }
 734
 735   /* format the amount using the scale */
 736   if (scale == 0)
 737     {
 738       /* no decimal point required */
 739       fmt_amount = g_strdup_printf ("%d", amount);
 740     }
 741   else
 742     {
 743       /* don't use floating point arithmatic, it's noisy;
 744        * we take the absolute values, because we want the minus
 745        * sign to appear before the $ */
 746       int divisor = pow (10, scale);
 747       int dollars = abs (amount / divisor);
 748       int cents = abs (amount % divisor);
 749
 750       fmt_amount = g_strdup_printf ("%d%s%0*d",
 751         dollars, decimal, scale, cents);
 752     }
 753
 754   money = g_strdup_printf (amount < 0 ? negative : positive, fmt_amount);
 755   g_free (fmt_amount);
 756
 757   return money;
 758 }
 759
 760 /* Return the TpContact on @conn associated with @individual, if any */
 761 TpContact *
 762 empathy_get_tp_contact_for_individual (FolksIndividual *individual,
 763     TpConnection *conn)
 764 {
 765   TpContact *contact = NULL;
 766   GeeSet *personas;
 767   GeeIterator *iter;
 768
 769   personas = folks_individual_get_personas (individual);
 770   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 771   while (contact == NULL && gee_iterator_next (iter))
 772     {
 773       TpfPersona *persona = gee_iterator_get (iter);
 774       TpConnection *contact_conn;
 775       TpContact *contact_cur = NULL;
 776
 777       if (TPF_IS_PERSONA (persona))
 778         {
 779           contact_cur = tpf_persona_get_contact (persona);
 780           if (contact_cur != NULL)
 781             {
 782               contact_conn = tp_contact_get_connection (contact_cur);
 783
 784               if (!tp_strdiff (tp_proxy_get_object_path (contact_conn),
 785                     tp_proxy_get_object_path (conn)))
 786                 contact = contact_cur;
 787             }
 788         }
 789
 790       g_clear_object (&persona);
 791     }
 792   g_clear_object (&iter);
 793
 794   return contact;
 795 }
 796
 797 static gboolean
 798 properties_contains (gchar **list,
 799                      gint length,
 800                      const gchar *property)
 801 {
 802   gint i;
 803
 804   for (i = 0; i < length; i++)
 805     {
 806       if (!tp_strdiff (list[i], property))
 807         return TRUE;
 808     }
 809
 810   return FALSE;
 811 }
 812
 813 static gboolean
 814 check_writeable_property (TpConnection *connection,
 815                           FolksIndividual *individual,
 816                           gchar *property)
 817 {
 818   gchar **properties;
 819   gint prop_len;
 820   gboolean retval = FALSE;
 821   GeeSet *personas;
 822   GeeIterator *iter;
 823   FolksPersonaStore *persona_store;
 824
 825   persona_store = FOLKS_PERSONA_STORE (
 826       empathy_dup_persona_store_for_connection (connection));
 827
 828   properties =
 829     folks_persona_store_get_always_writeable_properties (persona_store,
 830                                                          &prop_len);
 831   retval = properties_contains (properties, prop_len, property);
 832   if (retval == TRUE)
 833     goto out;
 834
 835   /* Lets see if the Individual contains a Persona with the given property */
 836   personas = folks_individual_get_personas (individual);
 837   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 838   while (!retval && gee_iterator_next (iter))
 839     {
 840       FolksPersona *persona = gee_iterator_get (iter);
 841
 842       properties =
 843         folks_persona_get_writeable_properties (persona, &prop_len);
 844       retval = properties_contains (properties, prop_len, property);
 845
 846       g_clear_object (&persona);
 847
 848       if (retval == TRUE)
 849         break;
 850     }
 851   g_clear_object (&iter);
 852
 853 out:
 854   g_clear_object (&persona_store);
 855   return retval;
 856 }
 857
 858 /* Calculate whether the Individual can do audio or video calls.
 859  * FIXME: We can remove this once libfolks has grown capabilities support
 860  * again: bgo#626179. */
 861 void
 862 empathy_individual_can_audio_video_call (FolksIndividual *individual,
 863     gboolean *can_audio_call,
 864     gboolean *can_video_call,
 865     EmpathyContact **out_contact)
 866 {
 867   GeeSet *personas;
 868   GeeIterator *iter;
 869   gboolean can_audio = FALSE, can_video = FALSE;
 870
 871   personas = folks_individual_get_personas (individual);
 872   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 873   while (gee_iterator_next (iter))
 874     {
 875       FolksPersona *persona = gee_iterator_get (iter);
 876       TpContact *tp_contact;
 877
 878       if (!empathy_folks_persona_is_interesting (persona))
 879         goto while_finish;
 880
 881       tp_contact = tpf_persona_get_contact (TPF_PERSONA (persona));
 882       if (tp_contact != NULL)
 883         {
 884           EmpathyContact *contact;
 885
 886           contact = empathy_contact_dup_from_tp_contact (tp_contact);
 887           empathy_contact_set_persona (contact, persona);
 888
 889           can_audio = can_audio || empathy_contact_get_capabilities (contact) &
 890               EMPATHY_CAPABILITIES_AUDIO;
 891           can_video = can_video || empathy_contact_get_capabilities (contact) &
 892               EMPATHY_CAPABILITIES_VIDEO;
 893
 894           if (out_contact != NULL)
 895             *out_contact = g_object_ref (contact);
 896
 897           g_object_unref (contact);
 898         }
 899
 900 while_finish:
 901       g_clear_object (&persona);
 902
 903       if (can_audio && can_video)
 904         break;
 905     }
 906
 907   g_clear_object (&iter);
 908
 909   if (can_audio_call != NULL)
 910     *can_audio_call = can_audio;
 911
 912   if (can_video_call != NULL)
 913     *can_video_call = can_video;
 914 }
 915
 916 gboolean
 917 empathy_client_types_contains_mobile_device (const GStrv types) {
 918   int i;
 919
 920   if (types == NULL)
 921     return FALSE;
 922
 923   for (i = 0; types[i] != NULL; i++)
 924     if (!tp_strdiff (types[i], "phone") || !tp_strdiff (types[i], "handheld"))
 925         return TRUE;
 926
 927   return FALSE;
 928 }
 929
 930 static FolksIndividual *
 931 create_individual_from_persona (FolksPersona *persona)
 932 {
 933   GeeSet *personas;
 934   FolksIndividual *individual;
 935
 936   personas = GEE_SET (
 937       gee_hash_set_new (FOLKS_TYPE_PERSONA, g_object_ref, g_object_unref,
 938       NULL, NULL, NULL, NULL, NULL, NULL));
 939
 940   gee_collection_add (GEE_COLLECTION (personas), persona);
 941
 942   individual = folks_individual_new (personas);
 943
 944   g_clear_object (&personas);
 945
 946   return individual;
 947 }
 948
 949 /* Look for a FolksIndividual containing @contact as one of his persona
 950  * and create one if needed */
 951 FolksIndividual *
 952 empathy_ensure_individual_from_tp_contact (TpContact *contact)
 953 {
 954   TpfPersona *persona;
 955   FolksIndividual *individual;
 956
 957   persona = tpf_persona_dup_for_contact (contact);
 958   if (persona == NULL)
 959     {
 960       DEBUG ("Failed to get a persona for %s",
 961           tp_contact_get_identifier (contact));
 962       return NULL;
 963     }
 964
 965   individual = folks_persona_get_individual (FOLKS_PERSONA (persona));
 966
 967   if (individual != NULL)
 968     g_object_ref (individual);
 969   else
 970     individual = create_individual_from_persona (FOLKS_PERSONA (persona));
 971
 972   g_object_unref (persona);
 973   return individual;
 974 }
 975
 976 const gchar * const *
 977 empathy_individual_get_client_types (FolksIndividual *individual)
 978 {
 979   GeeSet *personas;
 980   GeeIterator *iter;
 981   const gchar * const *types = NULL;
 982   FolksPresenceType presence_type = FOLKS_PRESENCE_TYPE_UNSET;
 983
 984   personas = folks_individual_get_personas (individual);
 985   iter = gee_iterable_iterator (GEE_ITERABLE (personas));
 986   while (gee_iterator_next (iter))
 987     {
 988       FolksPresenceDetails *presence;
 989       FolksPersona *persona = gee_iterator_get (iter);
 990
 991       /* We only want personas which have presence and a TpContact */
 992       if (!empathy_folks_persona_is_interesting (persona))
 993         goto while_finish;
 994
 995       presence = FOLKS_PRESENCE_DETAILS (persona);
 996
 997       if (folks_presence_details_typecmp (
 998               folks_presence_details_get_presence_type (presence),
 999               presence_type) > 0)
1000         {
1001           TpContact *tp_contact;
1002
1003           presence_type = folks_presence_details_get_presence_type (presence);
1004
1005           tp_contact = tpf_persona_get_contact (TPF_PERSONA (persona));
1006           if (tp_contact != NULL)
1007             types = tp_contact_get_client_types (tp_contact);
1008         }
1009
1010 while_finish:
1011       g_clear_object (&persona);
1012     }
1013   g_clear_object (&iter);
1014
1015   return types;
1016 }
1017
1018 GVariant *
1019 empathy_asv_to_vardict (const GHashTable *asv)
1020 {
1021   return empathy_boxed_to_variant (TP_HASH_TYPE_STRING_VARIANT_MAP, "a{sv}",
1022       (gpointer) asv);
1023 }
1024
1025 GVariant *
1026 empathy_boxed_to_variant (GType gtype,
1027     const gchar *variant_type,
1028     gpointer boxed)
1029 {
1030   GValue v = G_VALUE_INIT;
1031   GVariant *ret;
1032
1033   g_return_val_if_fail (boxed != NULL, NULL);
1034
1035   g_value_init (&v, gtype);
1036   g_value_set_boxed (&v, boxed);
1037
1038   ret = dbus_g_value_build_g_variant (&v);
1039   g_return_val_if_fail (!tp_strdiff (g_variant_get_type_string (ret),
1040         variant_type), NULL);
1041
1042   g_value_unset (&v);
1043
1044   return g_variant_ref_sink (ret);
1045 }