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 (connected: %s)", state,
 109       new_nm_connected ? "true" : "false");
 110
 111   connectivity_change_state (connectivity, new_nm_connected);
 112 }
 113 #endif
 114
 115 #ifdef HAVE_CONNMAN
 116 static void
 117 connectivity_connman_state_changed_cb (DBusGProxy *proxy,
 118     const gchar *new_state,
 119     EmpathyConnectivity *connectivity)
 120 {
 121   EmpathyConnectivityPriv *priv;
 122   gboolean new_connected;
 123
 124   priv = GET_PRIV (connectivity);
 125
 126   if (!priv->use_conn)
 127     return;
 128
 129   new_connected = !tp_strdiff (new_state, "online");
 130
 131   DEBUG ("New ConnMan network state %s", new_state);
 132
 133   connectivity_change_state (connectivity, new_connected);
 134 }
 135
 136 static void
 137 connectivity_connman_check_state_cb (DBusGProxy *proxy,
 138     DBusGProxyCall *call_id,
 139     gpointer user_data)
 140 {
 141   EmpathyConnectivity *connectivity = (EmpathyConnectivity *) user_data;
 142   GError *error = NULL;
 143   gchar *state;
 144
 145   if (dbus_g_proxy_end_call (proxy, call_id, &error,
 146           G_TYPE_STRING, &state, G_TYPE_INVALID))
 147     {
 148       connectivity_connman_state_changed_cb (proxy, state,
 149           connectivity);
 150       g_free (state);
 151     }
 152   else
 153     {
 154       DEBUG ("Failed to call GetState: %s", error->message);
 155       connectivity_connman_state_changed_cb (proxy, "offline",
 156           connectivity);
 157     }
 158 }
 159
 160 static void
 161 connectivity_connman_check_state (EmpathyConnectivity *connectivity)
 162 {
 163   EmpathyConnectivityPriv *priv;
 164
 165   priv = GET_PRIV (connectivity);
 166
 167   dbus_g_proxy_begin_call (priv->proxy, "GetState",
 168       connectivity_connman_check_state_cb, connectivity, NULL,
 169       G_TYPE_INVALID);
 170 }
 171 #endif
 172
 173 static void
 174 empathy_connectivity_init (EmpathyConnectivity *connectivity)
 175 {
 176   EmpathyConnectivityPriv *priv;
 177 #ifdef HAVE_CONNMAN
 178   DBusGConnection *connection;
 179   GError *error = NULL;
 180 #endif
 181
 182   priv = G_TYPE_INSTANCE_GET_PRIVATE (connectivity,
 183       EMPATHY_TYPE_CONNECTIVITY, EmpathyConnectivityPriv);
 184
 185   connectivity->priv = priv;
 186
 187   priv->use_conn = TRUE;
 188
 189 #ifdef HAVE_NM
 190   priv->nm_client = nm_client_new ();
 191   if (priv->nm_client != NULL)
 192     {
 193       priv->state_change_signal_id = g_signal_connect (priv->nm_client,
 194           "notify::" NM_CLIENT_STATE,
 195           G_CALLBACK (connectivity_nm_state_change_cb), connectivity);
 196
 197       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 198     }
 199   else
 200     {
 201       DEBUG ("Failed to get NetworkManager proxy");
 202     }
 203 #endif
 204
 205 #ifdef HAVE_CONNMAN
 206   connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
 207   if (connection != NULL)
 208     {
 209       priv->proxy = dbus_g_proxy_new_for_name (connection,
 210           "org.moblin.connman", "/",
 211           "org.moblin.connman.Manager");
 212
 213       dbus_g_object_register_marshaller (
 214           _empathy_marshal_VOID__STRING,
 215           G_TYPE_NONE, G_TYPE_STRING, G_TYPE_INVALID);
 216
 217       dbus_g_proxy_add_signal (priv->proxy, "StateChanged",
 218           G_TYPE_STRING, G_TYPE_INVALID);
 219
 220       dbus_g_proxy_connect_signal (priv->proxy, "StateChanged",
 221           G_CALLBACK (connectivity_connman_state_changed_cb),
 222           connectivity, NULL);
 223
 224       connectivity_connman_check_state (connectivity);
 225     }
 226   else
 227     {
 228       DEBUG ("Failed to get system bus connection: %s", error->message);
 229       g_error_free (error);
 230     }
 231 #endif
 232
 233 #if !defined(HAVE_NM) && !defined(HAVE_CONNMAN)
 234   priv->connected = TRUE;
 235 #endif
 236 }
 237
 238 static void
 239 connectivity_finalize (GObject *object)
 240 {
 241 #ifdef HAVE_NM
 242   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 243   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 244
 245   if (priv->nm_client != NULL)
 246     {
 247       g_signal_handler_disconnect (priv->nm_client,
 248           priv->state_change_signal_id);
 249       priv->state_change_signal_id = 0;
 250       g_object_unref (priv->nm_client);
 251       priv->nm_client = NULL;
 252     }
 253 #endif
 254
 255 #ifdef HAVE_CONNMAN
 256   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 257   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 258
 259   if (priv->proxy != NULL)
 260     {
 261       dbus_g_proxy_disconnect_signal (priv->proxy, "StateChanged",
 262           G_CALLBACK (connectivity_connman_state_changed_cb), connectivity);
 263
 264       g_object_unref (priv->proxy);
 265       priv->proxy = NULL;
 266     }
 267 #endif
 268
 269   G_OBJECT_CLASS (empathy_connectivity_parent_class)->finalize (object);
 270 }
 271
 272 static void
 273 connectivity_dispose (GObject *object)
 274 {
 275   G_OBJECT_CLASS (empathy_connectivity_parent_class)->dispose (object);
 276 }
 277
 278 static GObject *
 279 connectivity_constructor (GType type,
 280     guint n_construct_params,
 281     GObjectConstructParam *construct_params)
 282 {
 283   GObject *retval;
 284
 285   if (!connectivity_singleton)
 286     {
 287       retval = G_OBJECT_CLASS (empathy_connectivity_parent_class)->constructor
 288         (type, n_construct_params, construct_params);
 289
 290       connectivity_singleton = EMPATHY_CONNECTIVITY (retval);
 291       g_object_add_weak_pointer (retval, (gpointer) &connectivity_singleton);
 292     }
 293   else
 294     {
 295       retval = g_object_ref (connectivity_singleton);
 296     }
 297
 298   return retval;
 299 }
 300
 301 static void
 302 connectivity_get_property (GObject *object,
 303     guint param_id,
 304     GValue *value,
 305     GParamSpec *pspec)
 306 {
 307   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 308
 309   switch (param_id)
 310     {
 311     case PROP_USE_CONN:
 312       g_value_set_boolean (value, empathy_connectivity_get_use_conn (
 313               connectivity));
 314       break;
 315     default:
 316       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 317       break;
 318     };
 319 }
 320
 321 static void
 322 connectivity_set_property (GObject *object,
 323     guint param_id,
 324     const GValue *value,
 325     GParamSpec *pspec)
 326 {
 327   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 328
 329   switch (param_id)
 330     {
 331     case PROP_USE_CONN:
 332       empathy_connectivity_set_use_conn (connectivity,
 333           g_value_get_boolean (value));
 334       break;
 335     default:
 336       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 337       break;
 338     };
 339 }
 340
 341 static void
 342 empathy_connectivity_class_init (EmpathyConnectivityClass *klass)
 343 {
 344   GObjectClass *oclass = G_OBJECT_CLASS (klass);
 345
 346   oclass->finalize = connectivity_finalize;
 347   oclass->dispose = connectivity_dispose;
 348   oclass->constructor = connectivity_constructor;
 349   oclass->get_property = connectivity_get_property;
 350   oclass->set_property = connectivity_set_property;
 351
 352   signals[STATE_CHANGE] =
 353     g_signal_new ("state-change",
 354         G_TYPE_FROM_CLASS (klass),
 355         G_SIGNAL_RUN_LAST,
 356         0,
 357         NULL, NULL,
 358         _empathy_marshal_VOID__BOOLEAN,
 359         G_TYPE_NONE,
 360         1, G_TYPE_BOOLEAN, NULL);
 361
 362   g_object_class_install_property (oclass,
 363       PROP_USE_CONN,
 364       g_param_spec_boolean ("use-conn",
 365           "Use connectivity managers",
 366           "Set presence according to connectivity managers",
 367           TRUE,
 368           G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
 369
 370   g_type_class_add_private (oclass, sizeof (EmpathyConnectivityPriv));
 371 }
 372
 373 /* public methods */
 374
 375 EmpathyConnectivity *
 376 empathy_connectivity_dup_singleton (void)
 377 {
 378   return g_object_new (EMPATHY_TYPE_CONNECTIVITY, NULL);
 379 }
 380
 381 gboolean
 382 empathy_connectivity_is_online (EmpathyConnectivity *connectivity)
 383 {
 384   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 385
 386   return priv->connected;
 387 }
 388
 389 gboolean
 390 empathy_connectivity_get_use_conn (EmpathyConnectivity *connectivity)
 391 {
 392   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 393
 394   return priv->use_conn;
 395 }
 396
 397 void
 398 empathy_connectivity_set_use_conn (EmpathyConnectivity *connectivity,
 399     gboolean use_conn)
 400 {
 401   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 402
 403   if (use_conn == priv->use_conn)
 404     return;
 405
 406   DEBUG ("use_conn gconf key changed; new value = %s",
 407       use_conn ? "true" : "false");
 408
 409   priv->use_conn = use_conn;
 410
 411 #if defined(HAVE_NM) || defined(HAVE_CONNMAN)
 412   if (use_conn)
 413     {
 414 #if defined(HAVE_NM)
 415       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 416 #elif defined(HAVE_CONNMAN)
 417       connectivity_connman_check_state (connectivity);
 418 #endif
 419     }
 420   else
 421 #endif
 422     {
 423       connectivity_change_state (connectivity, TRUE);
 424     }
 425
 426   g_object_notify (G_OBJECT (connectivity), "use-conn");
 427 }