libempathy/empathy-presence-manager.c

   1 /*
   2  * Copyright (C) 2007-2011 Collabora Ltd.
   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 Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Xavier Claessens <xclaesse@gmail.com>
  19  */
  20
  21 #include "empathy-presence-manager.h"
  22
  23 #include <config.h>
  24
  25 #include <string.h>
  26
  27 #include <glib/gi18n-lib.h>
  28 #include <dbus/dbus-glib.h>
  29
  30 #include <telepathy-glib/account-manager.h>
  31 #include <telepathy-glib/dbus.h>
  32 #include <telepathy-glib/util.h>
  33
  34 #include "empathy-utils.h"
  35 #include "empathy-connectivity.h"
  36
  37 #define DEBUG_FLAG EMPATHY_DEBUG_OTHER
  38 #include "empathy-debug.h"
  39
  40 /* Number of seconds before entering extended autoaway. */
  41 #define EXT_AWAY_TIME (30*60)
  42
  43 /* Number of seconds to consider an account in the "just connected" state
  44  * for. */
  45 #define ACCOUNT_IS_JUST_CONNECTED_SECONDS 10
  46
  47 struct _EmpathyPresenceManagerPrivate
  48 {
  49   DBusGProxy *gs_proxy;
  50   EmpathyConnectivity *connectivity;
  51
  52   gboolean ready;
  53
  54   TpConnectionPresenceType state;
  55   gchar *status;
  56   gboolean auto_away;
  57
  58   TpConnectionPresenceType away_saved_state;
  59   TpConnectionPresenceType saved_state;
  60   gchar *saved_status;
  61
  62   gboolean is_idle;
  63   guint ext_away_timeout;
  64
  65   TpAccountManager *manager;
  66
  67   /* pointer to a TpAccount --> glong of time of connection */
  68   GHashTable *connect_times;
  69
  70   TpConnectionPresenceType requested_presence_type;
  71   gchar *requested_status_message;
  72 };
  73
  74 typedef enum
  75 {
  76   SESSION_STATUS_AVAILABLE,
  77   SESSION_STATUS_INVISIBLE,
  78   SESSION_STATUS_BUSY,
  79   SESSION_STATUS_IDLE,
  80   SESSION_STATUS_UNKNOWN
  81 } SessionStatus;
  82
  83 enum
  84 {
  85   PROP_0,
  86   PROP_STATE,
  87   PROP_STATUS,
  88   PROP_AUTO_AWAY
  89 };
  90
  91 G_DEFINE_TYPE (EmpathyPresenceManager, empathy_presence_manager, G_TYPE_OBJECT);
  92
  93 static EmpathyPresenceManager * singleton = NULL;
  94
  95 static const gchar *presence_type_to_status[NUM_TP_CONNECTION_PRESENCE_TYPES] =
  96 {
  97   NULL,
  98   "offline",
  99   "available",
 100   "away",
 101   "xa",
 102   "hidden",
 103   "busy",
 104   NULL,
 105   NULL,
 106 };
 107
 108 static void
 109 most_available_presence_changed (TpAccountManager *manager,
 110     TpConnectionPresenceType state,
 111     gchar *status,
 112     gchar *status_message,
 113     EmpathyPresenceManager *self)
 114 {
 115   if (state == TP_CONNECTION_PRESENCE_TYPE_UNSET)
 116     /* Assume our presence is offline if MC reports UNSET */
 117     state = TP_CONNECTION_PRESENCE_TYPE_OFFLINE;
 118
 119   DEBUG ("Presence changed to '%s' (%d) \"%s\"", status, state,
 120     status_message);
 121
 122   g_free (self->priv->status);
 123   self->priv->state = state;
 124   if (EMP_STR_EMPTY (status_message))
 125     self->priv->status = NULL;
 126   else
 127     self->priv->status = g_strdup (status_message);
 128
 129   g_object_notify (G_OBJECT (self), "state");
 130   g_object_notify (G_OBJECT (self), "status");
 131 }
 132
 133 static gboolean
 134 ext_away_cb (EmpathyPresenceManager *self)
 135 {
 136   DEBUG ("Going to extended autoaway");
 137   empathy_presence_manager_set_state (self,
 138       TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY);
 139   self->priv->ext_away_timeout = 0;
 140
 141   return FALSE;
 142 }
 143
 144 static void
 145 next_away_stop (EmpathyPresenceManager *self)
 146 {
 147   if (self->priv->ext_away_timeout)
 148     {
 149       g_source_remove (self->priv->ext_away_timeout);
 150       self->priv->ext_away_timeout = 0;
 151     }
 152 }
 153
 154 static void
 155 ext_away_start (EmpathyPresenceManager *self)
 156 {
 157   if (self->priv->ext_away_timeout != 0)
 158     return;
 159
 160   self->priv->ext_away_timeout = g_timeout_add_seconds (EXT_AWAY_TIME,
 161       (GSourceFunc) ext_away_cb, self);
 162 }
 163
 164 static void
 165 session_status_changed_cb (DBusGProxy *gs_proxy,
 166     SessionStatus status,
 167     EmpathyPresenceManager *self)
 168 {
 169   gboolean is_idle;
 170
 171   is_idle = (status == SESSION_STATUS_IDLE);
 172
 173   DEBUG ("Session idle state changed, %s -> %s",
 174     self->priv->is_idle ? "yes" : "no",
 175     is_idle ? "yes" : "no");
 176
 177   if (!self->priv->auto_away ||
 178       (self->priv->saved_state == TP_CONNECTION_PRESENCE_TYPE_UNSET &&
 179        (self->priv->state <= TP_CONNECTION_PRESENCE_TYPE_OFFLINE ||
 180         self->priv->state == TP_CONNECTION_PRESENCE_TYPE_HIDDEN)))
 181     {
 182       /* We don't want to go auto away OR we explicitely asked to be
 183        * offline, nothing to do here */
 184       self->priv->is_idle = is_idle;
 185       return;
 186     }
 187
 188   if (is_idle && !self->priv->is_idle)
 189     {
 190       TpConnectionPresenceType new_state;
 191       /* We are now idle */
 192
 193       ext_away_start (self);
 194
 195       if (self->priv->saved_state != TP_CONNECTION_PRESENCE_TYPE_UNSET)
 196         /* We are disconnected, when coming back from away
 197          * we want to restore the presence before the
 198          * disconnection. */
 199         self->priv->away_saved_state = self->priv->saved_state;
 200       else
 201         self->priv->away_saved_state = self->priv->state;
 202
 203     new_state = TP_CONNECTION_PRESENCE_TYPE_AWAY;
 204     if (self->priv->state == TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY)
 205       new_state = TP_CONNECTION_PRESENCE_TYPE_EXTENDED_AWAY;
 206
 207     DEBUG ("Going to autoaway. Saved state=%d, new state=%d",
 208       self->priv->away_saved_state, new_state);
 209     empathy_presence_manager_set_state (self, new_state);
 210   }
 211   else if (!is_idle && self->priv->is_idle)
 212     {
 213       /* We are no more idle, restore state */
 214
 215       next_away_stop (self);
 216
 217       /* Only try and set the presence if the away saved state is not
 218        * unset. This is an odd case because it means that the session
 219        * didn't notify us of the state change to idle, and as a
 220        * result, we couldn't save the current state at that time.
 221        */
 222       if (self->priv->away_saved_state != TP_CONNECTION_PRESENCE_TYPE_UNSET)
 223         {
 224           DEBUG ("Restoring state to %d",
 225             self->priv->away_saved_state);
 226
 227           empathy_presence_manager_set_state (self,
 228               self->priv->away_saved_state);
 229         }
 230       else
 231         {
 232           DEBUG ("Away saved state is unset. This means that we "
 233                  "weren't told when the session went idle. "
 234                  "As a result, I'm not trying to set presence");
 235         }
 236
 237       self->priv->away_saved_state = TP_CONNECTION_PRESENCE_TYPE_UNSET;
 238     }
 239
 240   self->priv->is_idle = is_idle;
 241 }
 242
 243 static void
 244 state_change_cb (EmpathyConnectivity *connectivity,
 245     gboolean new_online,
 246     EmpathyPresenceManager *self)
 247 {
 248   if (!new_online)
 249     {
 250       /* We are no longer connected */
 251       DEBUG ("Disconnected: Save state %d (%s)",
 252           self->priv->state, self->priv->status);
 253       self->priv->saved_state = self->priv->state;
 254       g_free (self->priv->saved_status);
 255       self->priv->saved_status = g_strdup (self->priv->status);
 256       empathy_presence_manager_set_state (self,
 257           TP_CONNECTION_PRESENCE_TYPE_OFFLINE);
 258     }
 259   else if (new_online
 260       && self->priv->saved_state != TP_CONNECTION_PRESENCE_TYPE_UNSET)
 261     {
 262       /* We are now connected */
 263       DEBUG ("Reconnected: Restore state %d (%s)",
 264           self->priv->saved_state, self->priv->saved_status);
 265       empathy_presence_manager_set_presence (self,
 266           self->priv->saved_state,
 267           self->priv->saved_status);
 268       self->priv->saved_state = TP_CONNECTION_PRESENCE_TYPE_UNSET;
 269       g_free (self->priv->saved_status);
 270       self->priv->saved_status = NULL;
 271     }
 272 }
 273
 274 static void
 275 presence_manager_dispose (GObject *object)
 276 {
 277   EmpathyPresenceManager *self = (EmpathyPresenceManager *) object;
 278
 279   tp_clear_object (&self->priv->gs_proxy);
 280   tp_clear_object (&self->priv->manager);
 281
 282   tp_clear_object (&self->priv->connectivity);
 283   tp_clear_pointer (&self->priv->connect_times, g_hash_table_unref);
 284
 285   next_away_stop (EMPATHY_PRESENCE_MANAGER (object));
 286
 287   G_OBJECT_CLASS (empathy_presence_manager_parent_class)->dispose (object);
 288 }
 289
 290 static void
 291 presence_manager_finalize (GObject *object)
 292 {
 293   EmpathyPresenceManager *self = (EmpathyPresenceManager *) object;
 294
 295   g_free (self->priv->status);
 296   g_free (self->priv->requested_status_message);
 297
 298   G_OBJECT_CLASS (empathy_presence_manager_parent_class)->finalize (object);
 299 }
 300
 301 static GObject *
 302 presence_manager_constructor (GType type,
 303     guint n_props,
 304     GObjectConstructParam *props)
 305 {
 306   GObject *retval;
 307
 308   if (singleton)
 309     {
 310       retval = g_object_ref (singleton);
 311     }
 312   else
 313     {
 314       retval = G_OBJECT_CLASS (empathy_presence_manager_parent_class)->
 315         constructor (type, n_props, props);
 316
 317       singleton = EMPATHY_PRESENCE_MANAGER (retval);
 318       g_object_add_weak_pointer (retval, (gpointer) &singleton);
 319   }
 320
 321   return retval;
 322 }
 323
 324 static const gchar *
 325 empathy_presence_manager_get_status (EmpathyPresenceManager *self)
 326 {
 327   if (G_UNLIKELY (!self->priv->ready))
 328     g_critical (G_STRLOC ": %s called before AccountManager ready",
 329         G_STRFUNC);
 330
 331   if (!self->priv->status)
 332     return empathy_presence_get_default_message (self->priv->state);
 333
 334   return self->priv->status;
 335 }
 336
 337 static void
 338 presence_manager_get_property (GObject *object,
 339     guint param_id,
 340     GValue *value,
 341     GParamSpec *pspec)
 342 {
 343   EmpathyPresenceManager *self = EMPATHY_PRESENCE_MANAGER (object);
 344
 345   switch (param_id)
 346     {
 347       case PROP_STATE:
 348         g_value_set_enum (value, empathy_presence_manager_get_state (self));
 349         break;
 350       case PROP_STATUS:
 351         g_value_set_string (value, empathy_presence_manager_get_status (self));
 352         break;
 353       case PROP_AUTO_AWAY:
 354         g_value_set_boolean (value,
 355             empathy_presence_manager_get_auto_away (self));
 356         break;
 357       default:
 358         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 359         break;
 360     };
 361 }
 362
 363 static void
 364 presence_manager_set_property (GObject *object,
 365     guint param_id,
 366     const GValue *value,
 367     GParamSpec *pspec)
 368 {
 369   EmpathyPresenceManager *self = EMPATHY_PRESENCE_MANAGER (object);
 370
 371   switch (param_id)
 372     {
 373       case PROP_STATE:
 374         empathy_presence_manager_set_state (self, g_value_get_enum (value));
 375         break;
 376       case PROP_STATUS:
 377         empathy_presence_manager_set_status (self, g_value_get_string (value));
 378         break;
 379       case PROP_AUTO_AWAY:
 380         empathy_presence_manager_set_auto_away (self,
 381             g_value_get_boolean (value));
 382         break;
 383       default:
 384         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 385         break;
 386     };
 387 }
 388
 389 static void
 390 empathy_presence_manager_class_init (EmpathyPresenceManagerClass *klass)
 391 {
 392   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 393
 394   object_class->dispose = presence_manager_dispose;
 395   object_class->finalize = presence_manager_finalize;
 396   object_class->constructor = presence_manager_constructor;
 397   object_class->get_property = presence_manager_get_property;
 398   object_class->set_property = presence_manager_set_property;
 399
 400   g_object_class_install_property (object_class,
 401       PROP_STATE,
 402       g_param_spec_uint ("state", "state", "state",
 403         0, NUM_TP_CONNECTION_PRESENCE_TYPES,
 404         TP_CONNECTION_PRESENCE_TYPE_UNSET,
 405         G_PARAM_READWRITE));
 406
 407   g_object_class_install_property (object_class,
 408       PROP_STATUS,
 409       g_param_spec_string ("status","status", "status",
 410         NULL,
 411         G_PARAM_READWRITE));
 412
 413    g_object_class_install_property (object_class,
 414        PROP_AUTO_AWAY,
 415        g_param_spec_boolean ("auto-away", "Automatic set presence to away",
 416          "Should it set presence to away if inactive",
 417          FALSE,
 418          G_PARAM_READWRITE));
 419
 420   g_type_class_add_private (object_class,
 421       sizeof (EmpathyPresenceManagerPrivate));
 422 }
 423
 424 static void
 425 account_status_changed_cb (TpAccount  *account,
 426     guint old_status,
 427     guint new_status,
 428     guint reason,
 429     gchar *dbus_error_name,
 430     GHashTable *details,
 431     gpointer user_data)
 432 {
 433   EmpathyPresenceManager *self = EMPATHY_PRESENCE_MANAGER (user_data);
 434   GTimeVal val;
 435
 436   if (new_status == TP_CONNECTION_STATUS_CONNECTED)
 437     {
 438       g_get_current_time (&val);
 439       g_hash_table_insert (self->priv->connect_times, account,
 440                GINT_TO_POINTER (val.tv_sec));
 441     }
 442   else if (new_status == TP_CONNECTION_STATUS_DISCONNECTED)
 443     {
 444       g_hash_table_remove (self->priv->connect_times, account);
 445     }
 446 }
 447
 448 static void
 449 account_manager_ready_cb (GObject *source_object,
 450         GAsyncResult *result,
 451         gpointer user_data)
 452 {
 453   EmpathyPresenceManager *self = user_data;
 454   TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
 455   TpConnectionPresenceType state;
 456   gchar *status, *status_message;
 457   GList *accounts, *l;
 458   GError *error = NULL;
 459
 460   /* In case we've been finalized before reading this callback */
 461   if (singleton == NULL)
 462     return;
 463
 464   self->priv->ready = TRUE;
 465
 466   if (!tp_proxy_prepare_finish (account_manager, result, &error))
 467     {
 468       DEBUG ("Failed to prepare account manager: %s", error->message);
 469       g_error_free (error);
 470       return;
 471     }
 472
 473   state = tp_account_manager_get_most_available_presence (self->priv->manager,
 474     &status, &status_message);
 475
 476   most_available_presence_changed (account_manager, state, status,
 477     status_message, self);
 478
 479   accounts = tp_account_manager_get_valid_accounts (self->priv->manager);
 480   for (l = accounts; l != NULL; l = l->next)
 481     {
 482       tp_g_signal_connect_object (l->data, "status-changed",
 483           G_CALLBACK (account_status_changed_cb), self, 0);
 484     }
 485   g_list_free (accounts);
 486
 487   g_free (status);
 488   g_free (status_message);
 489 }
 490
 491 static void
 492 empathy_presence_manager_init (EmpathyPresenceManager *self)
 493 {
 494   TpDBusDaemon *dbus;
 495
 496   self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
 497       EMPATHY_TYPE_PRESENCE_MANAGER, EmpathyPresenceManagerPrivate);
 498
 499   self->priv->is_idle = FALSE;
 500
 501   self->priv->manager = tp_account_manager_dup ();
 502
 503   tp_proxy_prepare_async (self->priv->manager, NULL,
 504       account_manager_ready_cb, self);
 505
 506   tp_g_signal_connect_object (self->priv->manager,
 507       "most-available-presence-changed",
 508       G_CALLBACK (most_available_presence_changed), self, 0);
 509
 510   dbus = tp_dbus_daemon_dup (NULL);
 511
 512   self->priv->gs_proxy = dbus_g_proxy_new_for_name (
 513       tp_proxy_get_dbus_connection (dbus),
 514       "org.gnome.SessionManager",
 515       "/org/gnome/SessionManager/Presence",
 516       "org.gnome.SessionManager.Presence");
 517
 518   if (self->priv->gs_proxy)
 519     {
 520       dbus_g_proxy_add_signal (self->priv->gs_proxy, "StatusChanged",
 521           G_TYPE_UINT, G_TYPE_INVALID);
 522       dbus_g_proxy_connect_signal (self->priv->gs_proxy, "StatusChanged",
 523           G_CALLBACK (session_status_changed_cb),
 524           self, NULL);
 525     }
 526   else
 527     {
 528       DEBUG ("Failed to get gs proxy");
 529     }
 530
 531   g_object_unref (dbus);
 532
 533   self->priv->connectivity = empathy_connectivity_dup_singleton ();
 534
 535   tp_g_signal_connect_object (self->priv->connectivity,
 536       "state-change", G_CALLBACK (state_change_cb), self, 0);
 537
 538   self->priv->connect_times = g_hash_table_new (g_direct_hash, g_direct_equal);
 539 }
 540
 541 EmpathyPresenceManager *
 542 empathy_presence_manager_dup_singleton (void)
 543 {
 544   return g_object_new (EMPATHY_TYPE_PRESENCE_MANAGER, NULL);
 545 }
 546
 547 TpConnectionPresenceType
 548 empathy_presence_manager_get_state (EmpathyPresenceManager *self)
 549 {
 550   if (G_UNLIKELY (!self->priv->ready))
 551     g_critical (G_STRLOC ": %s called before AccountManager ready",
 552         G_STRFUNC);
 553
 554   return self->priv->state;
 555 }
 556
 557 void
 558 empathy_presence_manager_set_state (EmpathyPresenceManager *self,
 559     TpConnectionPresenceType state)
 560 {
 561   empathy_presence_manager_set_presence (self, state, self->priv->status);
 562 }
 563
 564 void
 565 empathy_presence_manager_set_status (EmpathyPresenceManager *self,
 566        const gchar *status)
 567 {
 568   empathy_presence_manager_set_presence (self, self->priv->state, status);
 569 }
 570
 571 static void
 572 empathy_presence_manager_do_set_presence (EmpathyPresenceManager *self,
 573     TpConnectionPresenceType status_type,
 574     const gchar *status_message)
 575 {
 576   const gchar *status;
 577
 578   g_assert (status_type > 0 && status_type < NUM_TP_CONNECTION_PRESENCE_TYPES);
 579
 580   status = presence_type_to_status[status_type];
 581
 582   g_return_if_fail (status != NULL);
 583
 584   /* We possibly should be sure that the account manager is prepared, but
 585    * sometimes this isn't possible, like when exiting. In other words,
 586    * we need a callback to empathy_presence_manager_set_presence to be sure the
 587    * presence is set on all accounts successfully.
 588    * However, in practice, this is fine as we've already prepared the
 589    * account manager here in _init. */
 590   tp_account_manager_set_all_requested_presences (self->priv->manager,
 591     status_type, status, status_message);
 592 }
 593
 594 void
 595 empathy_presence_manager_set_presence (EmpathyPresenceManager *self,
 596     TpConnectionPresenceType state,
 597     const gchar *status)
 598 {
 599   const gchar     *default_status;
 600
 601   DEBUG ("Changing presence to %s (%d)", status, state);
 602
 603   g_free (self->priv->requested_status_message);
 604   self->priv->requested_presence_type = state;
 605   self->priv->requested_status_message = g_strdup (status);
 606
 607   /* Do not set translated default messages */
 608   default_status = empathy_presence_get_default_message (state);
 609   if (!tp_strdiff (status, default_status))
 610     status = NULL;
 611
 612   if (state != TP_CONNECTION_PRESENCE_TYPE_OFFLINE &&
 613       !empathy_connectivity_is_online (self->priv->connectivity))
 614     {
 615       DEBUG ("Empathy is not online");
 616
 617       self->priv->saved_state = state;
 618       if (tp_strdiff (self->priv->status, status))
 619         {
 620           g_free (self->priv->saved_status);
 621           self->priv->saved_status = NULL;
 622           if (!EMP_STR_EMPTY (status))
 623             self->priv->saved_status = g_strdup (status);
 624         }
 625       return;
 626     }
 627
 628   empathy_presence_manager_do_set_presence (self, state, status);
 629 }
 630
 631 gboolean
 632 empathy_presence_manager_get_auto_away (EmpathyPresenceManager *self)
 633 {
 634   return self->priv->auto_away;
 635 }
 636
 637 void
 638 empathy_presence_manager_set_auto_away (EmpathyPresenceManager *self,
 639           gboolean     auto_away)
 640 {
 641   self->priv->auto_away = auto_away;
 642
 643   g_object_notify (G_OBJECT (self), "auto-away");
 644 }
 645
 646 TpConnectionPresenceType
 647 empathy_presence_manager_get_requested_presence (EmpathyPresenceManager *self,
 648     gchar **status,
 649     gchar **status_message)
 650 {
 651   if (status != NULL)
 652     *status = g_strdup (presence_type_to_status[
 653         self->priv->requested_presence_type]);
 654
 655   if (status_message != NULL)
 656     *status_message = g_strdup (self->priv->requested_status_message);
 657
 658   return self->priv->requested_presence_type;
 659 }
 660
 661 /* This function returns %TRUE if EmpathyPresenceManager considers the account
 662  * @account as having just connected recently. Otherwise, it returns
 663  * %FALSE. In doubt, %FALSE is returned. */
 664 gboolean
 665 empathy_presence_manager_account_is_just_connected (
 666     EmpathyPresenceManager *self,
 667     TpAccount *account)
 668 {
 669   GTimeVal val;
 670   gpointer ptr;
 671   glong t;
 672
 673   if (tp_account_get_connection_status (account, NULL)
 674       != TP_CONNECTION_STATUS_CONNECTED)
 675     return FALSE;
 676
 677   ptr = g_hash_table_lookup (self->priv->connect_times, account);
 678
 679   if (ptr == NULL)
 680     return FALSE;
 681
 682   t = GPOINTER_TO_INT (ptr);
 683
 684   g_get_current_time (&val);
 685
 686   return (val.tv_sec - t) < ACCOUNT_IS_JUST_CONNECTED_SECONDS;
 687 }