libempathy/empathy-tp-tube.c

   1 /*
   2  * Copyright (C) 2008 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: Guillaume Desmottes <guillaume.desmottes@collabora.co.uk>
  19  *          Elliot Fairweather <elliot.fairweather@collabora.co.uk>
  20  */
  21
  22 #include <config.h>
  23
  24 #include <telepathy-glib/connection.h>
  25 #include <telepathy-glib/util.h>
  26 #include <extensions/extensions.h>
  27
  28 #include "empathy-enum-types.h"
  29 #include "empathy-tp-tube.h"
  30 #include "empathy-utils.h"
  31
  32 #define DEBUG_FLAG EMPATHY_DEBUG_TP
  33 #include "empathy-debug.h"
  34
  35 typedef struct {
  36   TpSocketAddressType type;
  37   EmpatyTpTubeAcceptStreamTubeCb *callback;
  38   gpointer user_data;
  39 } EmpathyTpTubeAcceptData;
  40
  41 static EmpathyTpTubeAcceptData *
  42 new_empathy_tp_tube_accept_data (TpSocketAddressType type,
  43   EmpatyTpTubeAcceptStreamTubeCb *callback, gpointer user_data)
  44 {
  45   EmpathyTpTubeAcceptData *r;
  46
  47   r = g_slice_new0 (EmpathyTpTubeAcceptData);
  48   r->type = type;
  49   r->callback = callback;
  50   r->user_data = user_data;
  51
  52   return r;
  53 }
  54
  55 static void
  56 free_empathy_tp_tube_accept_data (gpointer data)
  57 {
  58   g_slice_free (EmpathyTpTubeAcceptData, data);
  59 }
  60
  61
  62 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyTpTube)
  63 typedef struct
  64 {
  65   TpChannel *channel;
  66   /* FIXME readd support for parameters.. */
  67   GHashTable *parameters;
  68   EmpTubeChannelState state;
  69 } EmpathyTpTubePriv;
  70
  71 enum
  72 {
  73   PROP_0,
  74   PROP_CHANNEL,
  75   PROP_STATE,
  76 };
  77
  78 enum
  79 {
  80   DESTROY,
  81   LAST_SIGNAL
  82 };
  83
  84 static guint signals[LAST_SIGNAL];
  85
  86 G_DEFINE_TYPE (EmpathyTpTube, empathy_tp_tube, G_TYPE_OBJECT)
  87
  88 static void
  89 tp_tube_state_changed_cb (TpProxy *proxy,
  90                           EmpTubeChannelState state,
  91                           gpointer user_data,
  92                           GObject *tube)
  93 {
  94   EmpathyTpTubePriv *priv = GET_PRIV (tube);
  95
  96   DEBUG ("Tube state changed");
  97
  98   priv->state = state;
  99   g_object_notify (tube, "state");
 100 }
 101
 102 static void
 103 tp_tube_invalidated_cb (TpChannel     *channel,
 104                         GQuark         domain,
 105                         gint           code,
 106                         gchar         *message,
 107                         EmpathyTpTube *tube)
 108 {
 109   DEBUG ("Channel invalidated: %s", message);
 110   g_signal_emit (tube, signals[DESTROY], 0);
 111 }
 112
 113 static void
 114 tp_tube_async_cb (TpChannel *channel,
 115                   const GError *error,
 116                   gpointer user_data,
 117                   GObject *tube)
 118 {
 119   if (error)
 120       DEBUG ("Error %s: %s", (gchar*) user_data, error->message);
 121 }
 122
 123 static void
 124 tp_tube_set_property (GObject *object,
 125                       guint prop_id,
 126                       const GValue *value,
 127                       GParamSpec *pspec)
 128 {
 129   EmpathyTpTubePriv *priv = GET_PRIV (object);
 130
 131   switch (prop_id)
 132     {
 133       case PROP_CHANNEL:
 134         priv->channel = g_value_dup_object (value);
 135         break;
 136       default:
 137         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 138         break;
 139   }
 140 }
 141
 142 static void
 143 tp_tube_get_property (GObject *object,
 144                       guint prop_id,
 145                       GValue *value,
 146                       GParamSpec *pspec)
 147 {
 148   EmpathyTpTubePriv *priv = GET_PRIV (object);
 149
 150   switch (prop_id)
 151     {
 152       case PROP_CHANNEL:
 153         g_value_set_object (value, priv->channel);
 154         break;
 155       case PROP_STATE:
 156         g_value_set_uint (value, priv->state);
 157         break;
 158       default:
 159         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 160         break;
 161   }
 162 }
 163
 164 static GObject *
 165 tp_tube_constructor (GType type,
 166                      guint n_props,
 167                      GObjectConstructParam *props)
 168 {
 169   GObject *self;
 170   EmpathyTpTubePriv *priv;
 171
 172   self = G_OBJECT_CLASS (empathy_tp_tube_parent_class)->constructor (
 173       type, n_props, props);
 174   priv = GET_PRIV (self);
 175
 176   g_signal_connect (priv->channel, "invalidated",
 177       G_CALLBACK (tp_tube_invalidated_cb), self);
 178
 179   emp_cli_channel_interface_tube_connect_to_tube_channel_state_changed (
 180     TP_PROXY (priv->channel), tp_tube_state_changed_cb, NULL, NULL,
 181     self, NULL);
 182
 183   return self;
 184 }
 185
 186 static void
 187 tp_tube_finalize (GObject *object)
 188 {
 189   EmpathyTpTubePriv *priv = GET_PRIV (object);
 190
 191   DEBUG ("Finalizing: %p", object);
 192
 193   if (priv->channel)
 194     {
 195       g_signal_handlers_disconnect_by_func (priv->channel,
 196           tp_tube_invalidated_cb, object);
 197       tp_cli_channel_call_close (priv->channel, -1, tp_tube_async_cb,
 198         "closing tube", NULL, NULL);
 199       g_object_unref (priv->channel);
 200     }
 201
 202   if (priv->parameters != NULL)
 203   g_hash_table_destroy (priv->parameters);
 204
 205   G_OBJECT_CLASS (empathy_tp_tube_parent_class)->finalize (object);
 206 }
 207
 208 static void
 209 empathy_tp_tube_class_init (EmpathyTpTubeClass *klass)
 210 {
 211   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 212
 213   object_class->constructor = tp_tube_constructor;
 214   object_class->finalize = tp_tube_finalize;
 215   object_class->set_property = tp_tube_set_property;
 216   object_class->get_property = tp_tube_get_property;
 217
 218   g_object_class_install_property (object_class, PROP_CHANNEL,
 219       g_param_spec_object ("channel", "channel", "channel", TP_TYPE_CHANNEL,
 220       G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 221
 222   g_object_class_install_property (object_class, PROP_STATE,
 223       g_param_spec_uint ("state", "state", "state",
 224         0, NUM_EMP_TUBE_CHANNEL_STATES, 0,
 225         G_PARAM_READABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_STRINGS));
 226
 227   signals[DESTROY] = g_signal_new ("destroy",
 228       G_TYPE_FROM_CLASS (klass),
 229       G_SIGNAL_RUN_LAST,
 230       0, NULL, NULL,
 231       g_cclosure_marshal_VOID__VOID,
 232       G_TYPE_NONE, 0);
 233
 234   g_type_class_add_private (klass, sizeof (EmpathyTpTubePriv));
 235 }
 236
 237 static void
 238 empathy_tp_tube_init (EmpathyTpTube *tube)
 239 {
 240   EmpathyTpTubePriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (tube,
 241                 EMPATHY_TYPE_TP_TUBE, EmpathyTpTubePriv);
 242
 243   tube->priv = priv;
 244 }
 245
 246 EmpathyTpTube *
 247 empathy_tp_tube_new (TpChannel *channel)
 248 {
 249   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 250
 251   return g_object_new (EMPATHY_TYPE_TP_TUBE, "channel", channel,  NULL);
 252 }
 253
 254 EmpathyTpTube *
 255 empathy_tp_tube_new_stream_tube (EmpathyContact *contact,
 256                                  TpSocketAddressType type,
 257                                  const gchar *hostname,
 258                                  guint port,
 259                                  const gchar *service,
 260                                  GHashTable *parameters)
 261 {
 262   MissionControl *mc;
 263   McAccount *account;
 264   TpConnection *connection;
 265   TpChannel *channel;
 266   gchar *object_path;
 267   GHashTable *params;
 268   GValue *address;
 269   GValue *control_param;
 270   EmpathyTpTube *tube = NULL;
 271   GError *error = NULL;
 272   GHashTable *request;
 273   GHashTable *channel_properties;
 274   GValue *value;
 275
 276   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 277   g_return_val_if_fail (hostname != NULL, NULL);
 278   g_return_val_if_fail (service != NULL, NULL);
 279
 280   mc = empathy_mission_control_dup_singleton ();
 281   account = empathy_contact_get_account (contact);
 282   connection = mission_control_get_tpconnection (mc, account, NULL);
 283   g_object_unref (mc);
 284
 285   tp_connection_run_until_ready (connection, FALSE, NULL, NULL);
 286
 287   request = g_hash_table_new_full (g_str_hash, g_str_equal, NULL,
 288       (GDestroyNotify) tp_g_value_slice_free);
 289
 290   /* org.freedesktop.Telepathy.Channel.ChannelType */
 291   value = tp_g_value_slice_new (G_TYPE_STRING);
 292   g_value_set_string (value, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE);
 293   g_hash_table_insert (request, TP_IFACE_CHANNEL ".ChannelType", value);
 294
 295   /* org.freedesktop.Telepathy.Channel.TargetHandleType */
 296   value = tp_g_value_slice_new (G_TYPE_UINT);
 297   g_value_set_uint (value, TP_HANDLE_TYPE_CONTACT);
 298   g_hash_table_insert (request, TP_IFACE_CHANNEL ".TargetHandleType", value);
 299
 300   /* org.freedesktop.Telepathy.Channel.TargetHandleType */
 301   value = tp_g_value_slice_new (G_TYPE_UINT);
 302   g_value_set_uint (value, empathy_contact_get_handle (contact));
 303   g_hash_table_insert (request, TP_IFACE_CHANNEL ".TargetHandle", value);
 304
 305   /* org.freedesktop.Telepathy.Channel.Type.StreamTube.Service */
 306   value = tp_g_value_slice_new (G_TYPE_STRING);
 307   g_value_set_string (value, service);
 308   g_hash_table_insert (request,
 309     EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE  ".Service", value);
 310
 311   if (!tp_cli_connection_interface_requests_run_create_channel (connection, -1,
 312     request, &object_path, &channel_properties, &error, NULL))
 313     {
 314       DEBUG ("Error requesting channel: %s", error->message);
 315       g_clear_error (&error);
 316       g_object_unref (connection);
 317       return NULL;
 318     }
 319
 320   DEBUG ("Offering a new stream tube");
 321
 322   channel = tp_channel_new_from_properties (connection, object_path,
 323       channel_properties, NULL);
 324
 325   tp_channel_run_until_ready (channel, NULL, NULL);
 326
 327   #define ADDRESS_TYPE dbus_g_type_get_struct ("GValueArray",\
 328       G_TYPE_STRING, G_TYPE_UINT, G_TYPE_INVALID)
 329   params = g_hash_table_new (g_str_hash, g_str_equal);
 330   address = tp_g_value_slice_new (ADDRESS_TYPE);
 331   g_value_take_boxed (address, dbus_g_type_specialized_construct (ADDRESS_TYPE));
 332   dbus_g_type_struct_set (address, 0, hostname, 1, port, G_MAXUINT);
 333   control_param = tp_g_value_slice_new (G_TYPE_STRING);
 334
 335   if (parameters == NULL)
 336     /* Pass an empty dict as parameters */
 337     parameters = g_hash_table_new (g_str_hash, g_str_equal);
 338   else
 339     g_hash_table_ref (parameters);
 340
 341   if (!emp_cli_channel_type_stream_tube_run_offer_stream_tube (
 342         TP_PROXY(channel), -1, type, address,
 343         TP_SOCKET_ACCESS_CONTROL_LOCALHOST, control_param, parameters,
 344         &error, NULL))
 345     {
 346       DEBUG ("Couldn't offer tube: %s", error->message);
 347       g_clear_error (&error);
 348       goto OUT;
 349     }
 350
 351   DEBUG ("Stream tube offered");
 352
 353   tube = empathy_tp_tube_new (channel);
 354
 355 OUT:
 356   g_object_unref (channel);
 357   g_free (object_path);
 358   g_hash_table_destroy (request);
 359   g_hash_table_destroy (channel_properties);
 360   tp_g_value_slice_free (address);
 361   tp_g_value_slice_free (control_param);
 362   g_object_unref (connection);
 363   g_hash_table_unref (parameters);
 364
 365   return tube;
 366 }
 367
 368 static void
 369 tp_tube_accept_stream_cb (TpProxy *proxy,
 370                           const GValue *address,
 371                           const GError *error,
 372                           gpointer user_data,
 373                           GObject *weak_object)
 374 {
 375   EmpathyTpTube *tube = EMPATHY_TP_TUBE (weak_object);
 376   EmpathyTpTubeAcceptData *data = (EmpathyTpTubeAcceptData *)user_data;
 377   EmpathyTpTubeAddress eaddress;
 378
 379   eaddress.type = data->type;
 380
 381   if (error)
 382     {
 383       DEBUG ("Error accepting tube: %s", error->message);
 384       data->callback (tube, NULL, error, data->user_data);
 385       return;
 386     }
 387
 388   switch (eaddress.type)
 389     {
 390       case TP_SOCKET_ADDRESS_TYPE_UNIX:
 391       case TP_SOCKET_ADDRESS_TYPE_ABSTRACT_UNIX:
 392         eaddress.a.socket.path = g_value_get_boxed (address);
 393         break;
 394      case TP_SOCKET_ADDRESS_TYPE_IPV4:
 395      case TP_SOCKET_ADDRESS_TYPE_IPV6:
 396         dbus_g_type_struct_get (address,
 397           0, &eaddress.a.inet.hostname,
 398           1, &eaddress.a.inet.port, G_MAXUINT);
 399         break;
 400     }
 401
 402    data->callback (tube, &eaddress, NULL, data->user_data);
 403 }
 404
 405 void
 406 empathy_tp_tube_accept_stream_tube (EmpathyTpTube *tube,
 407   TpSocketAddressType type, EmpatyTpTubeAcceptStreamTubeCb *callback,
 408   gpointer user_data)
 409 {
 410   EmpathyTpTubePriv *priv = GET_PRIV (tube);
 411   GValue *control_param;
 412   EmpathyTpTubeAcceptData *data;
 413
 414   g_return_if_fail (EMPATHY_IS_TP_TUBE (tube));
 415
 416   DEBUG ("Accepting stream tube");
 417   /* FIXME allow other acls */
 418   control_param = tp_g_value_slice_new (G_TYPE_STRING);
 419
 420   data = new_empathy_tp_tube_accept_data (type, callback, user_data);
 421
 422   emp_cli_channel_type_stream_tube_call_accept_stream_tube (
 423      TP_PROXY (priv->channel), -1, type, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 424      control_param, tp_tube_accept_stream_cb, data,
 425      free_empathy_tp_tube_accept_data, G_OBJECT (tube));
 426
 427   tp_g_value_slice_free (control_param);
 428 }