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