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
  91 #if !defined(NM_CHECK_VERSION)
  92 #define NM_CHECK_VERSION(x,y,z) 0
  93 #endif
  94
  95 static void
  96 connectivity_nm_state_change_cb (NMClient *client,
  97     const GParamSpec *pspec,
  98     EmpathyConnectivity *connectivity)
  99 {
 100   EmpathyConnectivityPriv *priv;
 101   gboolean new_nm_connected;
 102   NMState state;
 103
 104   priv = GET_PRIV (connectivity);
 105
 106   if (!priv->use_conn)
 107     return;
 108
 109   state = nm_client_get_state (priv->nm_client);
 110   new_nm_connected = !(state == NM_STATE_CONNECTING
 111 #if NM_CHECK_VERSION(0,8,992)
 112       || state == NM_STATE_DISCONNECTING
 113 #endif
 114       || state == NM_STATE_ASLEEP
 115       || state == NM_STATE_DISCONNECTED);
 116
 117   DEBUG ("New NetworkManager network state %d (connected: %s)", state,
 118       new_nm_connected ? "true" : "false");
 119
 120   connectivity_change_state (connectivity, new_nm_connected);
 121 }
 122 #endif
 123
 124 #ifdef HAVE_CONNMAN
 125 static void
 126 connectivity_connman_state_changed_cb (DBusGProxy *proxy,
 127     const gchar *new_state,
 128     EmpathyConnectivity *connectivity)
 129 {
 130   EmpathyConnectivityPriv *priv;
 131   gboolean new_connected;
 132
 133   priv = GET_PRIV (connectivity);
 134
 135   if (!priv->use_conn)
 136     return;
 137
 138   new_connected = !tp_strdiff (new_state, "online");
 139
 140   DEBUG ("New ConnMan network state %s", new_state);
 141
 142   connectivity_change_state (connectivity, new_connected);
 143 }
 144
 145 static void
 146 connectivity_connman_check_state_cb (DBusGProxy *proxy,
 147     DBusGProxyCall *call_id,
 148     gpointer user_data)
 149 {
 150   EmpathyConnectivity *connectivity = (EmpathyConnectivity *) user_data;
 151   GError *error = NULL;
 152   gchar *state;
 153
 154   if (dbus_g_proxy_end_call (proxy, call_id, &error,
 155           G_TYPE_STRING, &state, G_TYPE_INVALID))
 156     {
 157       connectivity_connman_state_changed_cb (proxy, state,
 158           connectivity);
 159       g_free (state);
 160     }
 161   else
 162     {
 163       DEBUG ("Failed to call GetState: %s", error->message);
 164       connectivity_connman_state_changed_cb (proxy, "offline",
 165           connectivity);
 166     }
 167 }
 168
 169 static void
 170 connectivity_connman_check_state (EmpathyConnectivity *connectivity)
 171 {
 172   EmpathyConnectivityPriv *priv;
 173
 174   priv = GET_PRIV (connectivity);
 175
 176   dbus_g_proxy_begin_call (priv->proxy, "GetState",
 177       connectivity_connman_check_state_cb, connectivity, NULL,
 178       G_TYPE_INVALID);
 179 }
 180 #endif
 181
 182 static void
 183 empathy_connectivity_init (EmpathyConnectivity *connectivity)
 184 {
 185   EmpathyConnectivityPriv *priv;
 186 #ifdef HAVE_CONNMAN
 187   DBusGConnection *connection;
 188   GError *error = NULL;
 189 #endif
 190
 191   priv = G_TYPE_INSTANCE_GET_PRIVATE (connectivity,
 192       EMPATHY_TYPE_CONNECTIVITY, EmpathyConnectivityPriv);
 193
 194   connectivity->priv = priv;
 195
 196   priv->use_conn = TRUE;
 197
 198 #ifdef HAVE_NM
 199   priv->nm_client = nm_client_new ();
 200   if (priv->nm_client != NULL)
 201     {
 202       priv->state_change_signal_id = g_signal_connect (priv->nm_client,
 203           "notify::" NM_CLIENT_STATE,
 204           G_CALLBACK (connectivity_nm_state_change_cb), connectivity);
 205
 206       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 207     }
 208   else
 209     {
 210       DEBUG ("Failed to get NetworkManager proxy");
 211     }
 212 #endif
 213
 214 #ifdef HAVE_CONNMAN
 215   connection = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
 216   if (connection != NULL)
 217     {
 218       priv->proxy = dbus_g_proxy_new_for_name (connection,
 219           "net.connman", "/",
 220           "net.connman.Manager");
 221
 222       dbus_g_object_register_marshaller (
 223           _empathy_marshal_VOID__STRING,
 224           G_TYPE_NONE, G_TYPE_STRING, G_TYPE_INVALID);
 225
 226       dbus_g_proxy_add_signal (priv->proxy, "StateChanged",
 227           G_TYPE_STRING, G_TYPE_INVALID);
 228
 229       dbus_g_proxy_connect_signal (priv->proxy, "StateChanged",
 230           G_CALLBACK (connectivity_connman_state_changed_cb),
 231           connectivity, NULL);
 232
 233       connectivity_connman_check_state (connectivity);
 234     }
 235   else
 236     {
 237       DEBUG ("Failed to get system bus connection: %s", error->message);
 238       g_error_free (error);
 239     }
 240 #endif
 241
 242 #if !defined(HAVE_NM) && !defined(HAVE_CONNMAN)
 243   priv->connected = TRUE;
 244 #endif
 245 }
 246
 247 static void
 248 connectivity_finalize (GObject *object)
 249 {
 250 #ifdef HAVE_NM
 251   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 252   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 253
 254   if (priv->nm_client != NULL)
 255     {
 256       g_signal_handler_disconnect (priv->nm_client,
 257           priv->state_change_signal_id);
 258       priv->state_change_signal_id = 0;
 259       g_object_unref (priv->nm_client);
 260       priv->nm_client = NULL;
 261     }
 262 #endif
 263
 264 #ifdef HAVE_CONNMAN
 265   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 266   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 267
 268   if (priv->proxy != NULL)
 269     {
 270       dbus_g_proxy_disconnect_signal (priv->proxy, "StateChanged",
 271           G_CALLBACK (connectivity_connman_state_changed_cb), connectivity);
 272
 273       g_object_unref (priv->proxy);
 274       priv->proxy = NULL;
 275     }
 276 #endif
 277
 278   G_OBJECT_CLASS (empathy_connectivity_parent_class)->finalize (object);
 279 }
 280
 281 static void
 282 connectivity_dispose (GObject *object)
 283 {
 284   G_OBJECT_CLASS (empathy_connectivity_parent_class)->dispose (object);
 285 }
 286
 287 static GObject *
 288 connectivity_constructor (GType type,
 289     guint n_construct_params,
 290     GObjectConstructParam *construct_params)
 291 {
 292   GObject *retval;
 293
 294   if (!connectivity_singleton)
 295     {
 296       retval = G_OBJECT_CLASS (empathy_connectivity_parent_class)->constructor
 297         (type, n_construct_params, construct_params);
 298
 299       connectivity_singleton = EMPATHY_CONNECTIVITY (retval);
 300       g_object_add_weak_pointer (retval, (gpointer) &connectivity_singleton);
 301     }
 302   else
 303     {
 304       retval = g_object_ref (connectivity_singleton);
 305     }
 306
 307   return retval;
 308 }
 309
 310 static void
 311 connectivity_get_property (GObject *object,
 312     guint param_id,
 313     GValue *value,
 314     GParamSpec *pspec)
 315 {
 316   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 317
 318   switch (param_id)
 319     {
 320     case PROP_USE_CONN:
 321       g_value_set_boolean (value, empathy_connectivity_get_use_conn (
 322               connectivity));
 323       break;
 324     default:
 325       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 326       break;
 327     };
 328 }
 329
 330 static void
 331 connectivity_set_property (GObject *object,
 332     guint param_id,
 333     const GValue *value,
 334     GParamSpec *pspec)
 335 {
 336   EmpathyConnectivity *connectivity = EMPATHY_CONNECTIVITY (object);
 337
 338   switch (param_id)
 339     {
 340     case PROP_USE_CONN:
 341       empathy_connectivity_set_use_conn (connectivity,
 342           g_value_get_boolean (value));
 343       break;
 344     default:
 345       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 346       break;
 347     };
 348 }
 349
 350 static void
 351 empathy_connectivity_class_init (EmpathyConnectivityClass *klass)
 352 {
 353   GObjectClass *oclass = G_OBJECT_CLASS (klass);
 354
 355   oclass->finalize = connectivity_finalize;
 356   oclass->dispose = connectivity_dispose;
 357   oclass->constructor = connectivity_constructor;
 358   oclass->get_property = connectivity_get_property;
 359   oclass->set_property = connectivity_set_property;
 360
 361   signals[STATE_CHANGE] =
 362     g_signal_new ("state-change",
 363         G_TYPE_FROM_CLASS (klass),
 364         G_SIGNAL_RUN_LAST,
 365         0,
 366         NULL, NULL,
 367         _empathy_marshal_VOID__BOOLEAN,
 368         G_TYPE_NONE,
 369         1, G_TYPE_BOOLEAN, NULL);
 370
 371   g_object_class_install_property (oclass,
 372       PROP_USE_CONN,
 373       g_param_spec_boolean ("use-conn",
 374           "Use connectivity managers",
 375           "Set presence according to connectivity managers",
 376           TRUE,
 377           G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
 378
 379   g_type_class_add_private (oclass, sizeof (EmpathyConnectivityPriv));
 380 }
 381
 382 /* public methods */
 383
 384 EmpathyConnectivity *
 385 empathy_connectivity_dup_singleton (void)
 386 {
 387   return g_object_new (EMPATHY_TYPE_CONNECTIVITY, NULL);
 388 }
 389
 390 gboolean
 391 empathy_connectivity_is_online (EmpathyConnectivity *connectivity)
 392 {
 393   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 394
 395   return priv->connected;
 396 }
 397
 398 gboolean
 399 empathy_connectivity_get_use_conn (EmpathyConnectivity *connectivity)
 400 {
 401   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 402
 403   return priv->use_conn;
 404 }
 405
 406 void
 407 empathy_connectivity_set_use_conn (EmpathyConnectivity *connectivity,
 408     gboolean use_conn)
 409 {
 410   EmpathyConnectivityPriv *priv = GET_PRIV (connectivity);
 411
 412   if (use_conn == priv->use_conn)
 413     return;
 414
 415   DEBUG ("use_conn GSetting key changed; new value = %s",
 416       use_conn ? "true" : "false");
 417
 418   priv->use_conn = use_conn;
 419
 420 #if defined(HAVE_NM) || defined(HAVE_CONNMAN)
 421   if (use_conn)
 422     {
 423 #if defined(HAVE_NM)
 424       connectivity_nm_state_change_cb (priv->nm_client, NULL, connectivity);
 425 #elif defined(HAVE_CONNMAN)
 426       connectivity_connman_check_state (connectivity);
 427 #endif
 428     }
 429   else
 430 #endif
 431     {
 432       connectivity_change_state (connectivity, TRUE);
 433     }
 434
 435   g_object_notify (G_OBJECT (connectivity), "use-conn");
 436 }