libempathy/empathy-connectivity.c

   1 /* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
   2 /*
   3  * Copyright (C) 2009 Collabora Ltd.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library 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  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18  *
  19  * Authors: Jonny Lamb <jonny.lamb@collabora.co.uk>
  20  */
  21
  22 #include "config.h"
  23 #include "empathy-connectivity.h"
  24
  25 #ifdef HAVE_NM
  26 #include <nm-client.h>
  27 #endif
  28
  29 #ifdef HAVE_CONNMAN
  30 #include <dbus/dbus-glib.h>
  31 #endif
  32
  33 #include <telepathy-glib/util.h>
  34
  35 #include "empathy-utils.h"
  36 #include "empathy-marshal.h"
  37
  38 #define DEBUG_FLAG EMPATHY_DEBUG_CONNECTIVITY
  39 #include "empathy-debug.h"
  40
  41 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyConnectivity)
  42
  43 typedef struct {
  44 #ifdef HAVE_NM
  45   NMClient *nm_client;
  46   gulong state_change_signal_id;
  47 #endif
  48
  49 #ifdef HAVE_CONNMAN
  50   DBusGProxy *proxy;
  51 #endif
  52
  53   gboolean connected;
  54   gboolean use_conn;
  55 } EmpathyConnectivityPriv;
  56
  57 enum {
  58   STATE_CHANGE,
  59   LAST_SIGNAL
  60 };
  61
  62 enum {
  63   PROP_0,
  64   PROP_USE_CONN,
  65 };
  66
  67 static guint signals[LAST_SIGNAL];
  68 static EmpathyConnectivity *connectivity_singleton = NULL;
  69
  70 G_DEFINE_TYPE (EmpathyConnectivity, empathy_connectivity, G_TYPE_OBJECT);
  71
  72 static void
  73 connectivity_change_state (EmpathyConnectivity *connectivity,
  74     gboolean new_state)
  75 {
  76   EmpathyConnectivityPriv *priv;
  77
  78   priv = GET_PRIV (connectivity);
  79
  80   if (priv->connected == new_state)
  81     return;
  82
  83   priv->connected = new_state;
  84
  85   g_signal_emit (connectivity, signals[STATE_CHANGE], 0,
  86       priv->connected);
  87 }
  88
  89 #ifdef HAVE_NM
  90 static void
  91 connectivity_nm_state_change_cb (NMClient *client,
  92     const GParamSpec *pspec,
  93     EmpathyConnectivity *connectivity)
  94 {
  95   EmpathyConnectivityPriv *priv;
  96   gboolean new_nm_connected;
  97   NMState state;
  98
  99   priv = GET_PRIV (connectivity);
 100
 101   if (!priv->use_conn)
 102     return;
 103
 104   state = nm_client_get_state (priv->nm_client);
 105   new_nm_connected = !(state == NM_STATE_CONNECTING
 106       || state == NM_STATE_DISCONNECTED);
 107
 108   DEBUG ("New NetworkManager network state %d", state);
 109
 110   connectivity_change_state (connectivity, new_nm_connected);
 111 }
 112 #endif
 113
 114 #ifdef HAVE_CONNMAN
 115 static void
 116 connectivity_connman_state_changed_cb (DBusGProxy *proxy,
 117     const gchar *new_state,
 118     EmpathyConnectivity *connectivity)
 119 {
 120   EmpathyConnectivityPriv *priv;
 121   gboolean new_connected;
 122
 123   priv = GET_PRIV (connectivity);
 124
 125   if (!priv->use_conn)
 126     return;
 127
 128   new_connected = !tp_strdiff (new_state, "online");
 129
 130   DEBUG ("New ConnMan network state %s", new_state);
 131
 132   connectivity_change_state (connectivity, new_connected);
 133 }
 134
 135 static void
 136 connectivity_connman_check_state_cb (DBusGProxy *proxy,
 137     DBusGProxyCall *call_id,
 138     gpointer user_data)
 139 {
 140   EmpathyConnectivity *connectivity = (EmpathyConnectivity *) user_data;
 141   GError *error = NULL;
 142   gchar *state;
 143
 144   if (dbus_g_proxy_end_call (proxy, call_id, &error,
 145           G_TYPE_STRING, &state, G_TYPE_INVALID))
 146     {
 147       connectivity_connman_state_changed_cb (proxy, state,
 148           connectivity);
 149       g_free (state);
 150     }
 151   else
 152     {
 153       DEBUG ("Failed to call GetState: %s", error->message);
 154       connectivity_connman_state_changed_cb (proxy, "offline",
 155           connectivity);
 156     }
 157 }
 158
 159 static void
 160 connectivity_connman_check_state (EmpathyConnectivity *connectivity)
 161 {
 162   EmpathyConnectivityPriv *priv;
 163
 164   priv = GET_PRIV (connectivity);
 165
 166   dbus_g_proxy_begin_call (priv->proxy, "GetState",
 167       connectivity_connman_check_state_cb, connectivity, NULL,
 168       G_TYPE_INVALID);
 169 }
 170 #endif
 171
 172 static void
 173 empathy_connectivity_init (EmpathyConnectivity *connectivity)
 174 {
 175   EmpathyConnectivityPriv *priv;
 176 #ifdef HAVE_CONNMAN
 177   DBusGConnection *connection;
 178   GError *error = NULL;
 179 #endif
 180
 181   priv = G_TYPE_INSTANCE_GET_PRIVATE (connectivity,
 182       EMPATHY_TYPE_CONNECTIVITY, EmpathyConnectivityPriv);
 183
 184   connectivity->priv = priv;
 185
 186   priv->use_conn = TRUE;
 187
 188 #ifdef HAVE_NM
 189   priv->nm_client = nm_client_new ();
 190   if (priv->nm_client != NULL)
 191     {
 192       priv->state_change_signal_id = g_signal_connect (priv->nm_client,
 193           "notify::" NM_CLIENT_STATE,
 194           G_CALLBACK (connectivity_nm_state_change_cb), connectivity);
 195
 196       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 197     }
 198   else
 199     {
 200       DEBUG ("Failed to get NetworkManager proxy");
 201     }
 202 #endif
 203
 204 #ifdef HAVE_CONNMAN
 205   connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
 206   if (connection != NULL)
 207     {
 208       priv->proxy = dbus_g_proxy_new_for_name (connection,
 209           "org.moblin.connman", "/",
 210           "org.moblin.connman.Manager");
 211
 212       dbus_g_object_register_marshaller (
 213           _empathy_marshal_VOID__STRING,
 214           G_TYPE_NONE, G_TYPE_STRING, G_TYPE_INVALID);
 215
 216       dbus_g_proxy_add_signal (priv->proxy, "StateChanged",
 217           G_TYPE_STRING, G_TYPE_INVALID);
 218
 219       dbus_g_proxy_connect_signal (priv->proxy, "StateChanged",
 220           G_CALLBACK (connectivity_connman_state_changed_cb),
 221           connectivity, NULL);
 222
 223       connectivity_connman_check_state (connectivity);
 224     }
 225   else
 226     {
 227       DEBUG ("Failed to get system bus connection: %s", error->message);
 228       g_error_free (error);
 229     }
 230 #endif
 231
 232 #if !defined(HAVE_NM) || !defined(HAVE_CONNMAN)
 233   priv->connected = TRUE;
 234 #endif
 235 }
 236
 237 static void
 238 connectivity_finalize (GObject *object)
 239 {
 240 #ifdef HAVE_NM
 241   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 242   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 243
 244   if (priv->nm_client != NULL)
 245     {
 246       g_signal_handler_disconnect (priv->nm_client,
 247           priv->state_change_signal_id);
 248       priv->state_change_signal_id = 0;
 249       g_object_unref (priv->nm_client);
 250       priv->nm_client = NULL;
 251     }
 252 #endif
 253
 254 #ifdef HAVE_CONNMAN
 255   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 256   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 257
 258   if (priv->proxy != NULL)
 259     {
 260       dbus_g_proxy_disconnect_signal (priv->proxy, "StateChanged",
 261           G_CALLBACK (connectivity_connman_state_changed_cb), connectivity);
 262
 263       g_object_unref (priv->proxy);
 264       priv->proxy = NULL;
 265     }
 266 #endif
 267
 268   G_OBJECT_CLASS (empathy_connectivity_parent_class)->finalize (object);
 269 }
 270
 271 static void
 272 connectivity_dispose (GObject *object)
 273 {
 274   G_OBJECT_CLASS (empathy_connectivity_parent_class)->dispose (object);
 275 }
 276
 277 static GObject *
 278 connectivity_constructor (GType type,
 279     guint n_construct_params,
 280     GObjectConstructParam *construct_params)
 281 {
 282   GObject *retval;
 283
 284   if (!connectivity_singleton)
 285     {
 286       retval = G_OBJECT_CLASS (empathy_connectivity_parent_class)->constructor
 287         (type, n_construct_params, construct_params);
 288
 289       connectivity_singleton = EMPATHY_CONNECTIVITY (retval);
 290       g_object_add_weak_pointer (retval, (gpointer) &connectivity_singleton);
 291     }
 292   else
 293     {
 294       retval = g_object_ref (connectivity_singleton);
 295     }
 296
 297   return retval;
 298 }
 299
 300 static void
 301 connectivity_get_property (GObject *object,
 302     guint param_id,
 303     GValue *value,
 304     GParamSpec *pspec)
 305 {
 306   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 307
 308   switch (param_id)
 309     {
 310     case PROP_USE_CONN:
 311       g_value_set_boolean (value, empathy_connectivity_get_use_conn (
 312               connectivity));
 313       break;
 314     default:
 315       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 316       break;
 317     };
 318 }
 319
 320 static void
 321 connectivity_set_property (GObject *object,
 322     guint param_id,
 323     const GValue *value,
 324     GParamSpec *pspec)
 325 {
 326   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 327
 328   switch (param_id)
 329     {
 330     case PROP_USE_CONN:
 331       empathy_connectivity_set_use_conn (connectivity,
 332           g_value_get_boolean (value));
 333       break;
 334     default:
 335       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 336       break;
 337     };
 338 }
 339
 340 static void
 341 empathy_connectivity_class_init (EmpathyConnectivityClass *klass)
 342 {
 343   GObjectClass *oclass = G_OBJECT_CLASS (klass);
 344
 345   oclass->finalize = connectivity_finalize;
 346   oclass->dispose = connectivity_dispose;
 347   oclass->constructor = connectivity_constructor;
 348   oclass->get_property = connectivity_get_property;
 349   oclass->set_property = connectivity_set_property;
 350
 351   signals[STATE_CHANGE] =
 352     g_signal_new ("state-change",
 353         G_TYPE_FROM_CLASS (klass),
 354         G_SIGNAL_RUN_LAST,
 355         0,
 356         NULL, NULL,
 357         _empathy_marshal_VOID__BOOLEAN,
 358         G_TYPE_NONE,
 359         1, G_TYPE_BOOLEAN, NULL);
 360
 361   g_object_class_install_property (oclass,
 362       PROP_USE_CONN,
 363       g_param_spec_boolean ("use-conn",
 364           "Use connectivity managers",
 365           "Set presence according to connectivity managers",
 366           TRUE,
 367           G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
 368
 369   g_type_class_add_private (oclass, sizeof (EmpathyConnectivityPriv));
 370 }
 371
 372 /* public methods */
 373
 374 EmpathyConnectivity *
 375 empathy_connectivity_dup_singleton (void)
 376 {
 377   return g_object_new (EMPATHY_TYPE_CONNECTIVITY, NULL);
 378 }
 379
 380 gboolean
 381 empathy_connectivity_is_online (EmpathyConnectivity *connectivity)
 382 {
 383   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 384
 385   if (priv->use_conn)
 386     {
 387       return priv->connected;
 388     }
 389   else
 390     {
 391       return TRUE;
 392     }
 393 }
 394
 395 gboolean
 396 empathy_connectivity_get_use_conn (EmpathyConnectivity *connectivity)
 397 {
 398   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 399
 400   return priv->use_conn;
 401 }
 402
 403 void
 404 empathy_connectivity_set_use_conn (EmpathyConnectivity *connectivity,
 405     gboolean use_conn)
 406 {
 407   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 408
 409   if (use_conn == priv->use_conn)
 410     return;
 411
 412   DEBUG ("use_conn gconf key changed; new value = %s",
 413       use_conn ? "true" : "false");
 414
 415   priv->use_conn = use_conn;
 416
 417 #if defined(HAVE_NM) || defined(HAVE_CONNMAN)
 418   if (use_conn)
 419     {
 420 #if defined(HAVE_NM)
 421       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 422 #elif defined(HAVE_CONNMAN)
 423       connectivity_connman_check_state (connectivity);
 424 #endif
 425     }
 426   else
 427 #endif
 428     {
 429       connectivity_change_state (connectivity, TRUE);
 430     }
 431
 432   g_object_notify (G_OBJECT (connectivity), "use-conn");
 433 }