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-contact-factory.h"
  29 #include "empathy-enum-types.h"
  30 #include "empathy-tp-tube.h"
  31 #include "empathy-utils.h"
  32
  33 #define DEBUG_FLAG EMPATHY_DEBUG_TP
  34 #include "empathy-debug.h"
  35
  36 typedef struct {
  37   TpSocketAddressType type;
  38   EmpatyTpTubeAcceptStreamTubeCb *callback;
  39   gpointer user_data;
  40 } EmpathyTpTubeAcceptData;
  41
  42 static EmpathyTpTubeAcceptData *
  43 new_empathy_tp_tube_accept_data (TpSocketAddressType type,
  44   EmpatyTpTubeAcceptStreamTubeCb *callback, gpointer user_data)
  45 {
  46   EmpathyTpTubeAcceptData *r;
  47
  48   r = g_slice_new0 (EmpathyTpTubeAcceptData);
  49   r->type = type;
  50   r->callback = callback;
  51   r->user_data = user_data;
  52
  53   return r;
  54 }
  55
  56 static void
  57 free_empathy_tp_tube_accept_data (gpointer data)
  58 {
  59   g_slice_free (EmpathyTpTubeAcceptData, data);
  60 }
  61
  62
  63 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyTpTube)
  64 typedef struct
  65 {
  66   TpChannel *channel;
  67   guint initiator;
  68   guint type;
  69   gchar *service;
  70   /* FIXME readd support for parameters.. */
  71   GHashTable *parameters;
  72   EmpTubeChannelState state;
  73   EmpathyContact *initiator_contact;
  74   EmpathyContactFactory *factory;
  75 } EmpathyTpTubePriv;
  76
  77 enum
  78 {
  79   PROP_0,
  80   PROP_CHANNEL,
  81   PROP_STATE,
  82 };
  83
  84 enum
  85 {
  86   DESTROY,
  87   LAST_SIGNAL
  88 };
  89
  90 static guint signals[LAST_SIGNAL];
  91
  92 G_DEFINE_TYPE (EmpathyTpTube, empathy_tp_tube, G_TYPE_OBJECT)
  93
  94 static void
  95 tp_tube_state_changed_cb (TpProxy *proxy,
  96                           EmpTubeChannelState state,
  97                           gpointer user_data,
  98                           GObject *tube)
  99 {
 100   EmpathyTpTubePriv *priv = GET_PRIV (tube);
 101
 102   DEBUG ("Tube state changed");
 103
 104   priv->state = state;
 105   g_object_notify (tube, "state");
 106 }
 107
 108 static void
 109 tp_tube_invalidated_cb (TpChannel     *channel,
 110                         GQuark         domain,
 111                         gint           code,
 112                         gchar         *message,
 113                         EmpathyTpTube *tube)
 114 {
 115   DEBUG ("Channel invalidated: %s", message);
 116   g_signal_emit (tube, signals[DESTROY], 0);
 117 }
 118
 119 static void
 120 tp_tube_async_cb (TpChannel *channel,
 121                   const GError *error,
 122                   gpointer user_data,
 123                   GObject *tube)
 124 {
 125   if (error)
 126       DEBUG ("Error %s: %s", (gchar*) user_data, error->message);
 127 }
 128
 129 static void
 130 tp_tube_set_property (GObject *object,
 131                       guint prop_id,
 132                       const GValue *value,
 133                       GParamSpec *pspec)
 134 {
 135   EmpathyTpTubePriv *priv = GET_PRIV (object);
 136
 137   switch (prop_id)
 138     {
 139       case PROP_CHANNEL:
 140         priv->channel = g_value_dup_object (value);
 141         break;
 142       default:
 143         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 144         break;
 145   }
 146 }
 147
 148 static void
 149 tp_tube_get_property (GObject *object,
 150                       guint prop_id,
 151                       GValue *value,
 152                       GParamSpec *pspec)
 153 {
 154   EmpathyTpTubePriv *priv = GET_PRIV (object);
 155
 156   switch (prop_id)
 157     {
 158       case PROP_CHANNEL:
 159         g_value_set_object (value, priv->channel);
 160         break;
 161       case PROP_STATE:
 162         g_value_set_uint (value, priv->state);
 163         break;
 164       default:
 165         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 166         break;
 167   }
 168 }
 169
 170 static GObject *
 171 tp_tube_constructor (GType type,
 172                      guint n_props,
 173                      GObjectConstructParam *props)
 174 {
 175   GObject *self;
 176   EmpathyTpTubePriv *priv;
 177
 178   self = G_OBJECT_CLASS (empathy_tp_tube_parent_class)->constructor (
 179       type, n_props, props);
 180   priv = GET_PRIV (self);
 181
 182   g_signal_connect (priv->channel, "invalidated",
 183       G_CALLBACK (tp_tube_invalidated_cb), self);
 184
 185   emp_cli_channel_interface_tube_connect_to_tube_channel_state_changed (
 186     TP_PROXY (priv->channel), tp_tube_state_changed_cb, NULL, NULL,
 187     self, NULL);
 188
 189   return self;
 190 }
 191
 192 static void
 193 tp_tube_finalize (GObject *object)
 194 {
 195   EmpathyTpTubePriv *priv = GET_PRIV (object);
 196
 197   DEBUG ("Finalizing: %p", object);
 198
 199   if (priv->channel)
 200     {
 201       g_signal_handlers_disconnect_by_func (priv->channel,
 202           tp_tube_invalidated_cb, object);
 203       tp_cli_channel_call_close (priv->channel, -1, tp_tube_async_cb,
 204         "closing tube", NULL, NULL);
 205       g_object_unref (priv->channel);
 206     }
 207   if (priv->initiator_contact)
 208       g_object_unref (priv->initiator_contact);
 209   if (priv->factory)
 210       g_object_unref (priv->factory);
 211
 212   g_free (priv->service);
 213
 214   if (priv->parameters != NULL)
 215   g_hash_table_destroy (priv->parameters);
 216
 217   G_OBJECT_CLASS (empathy_tp_tube_parent_class)->finalize (object);
 218 }
 219
 220 static void
 221 empathy_tp_tube_class_init (EmpathyTpTubeClass *klass)
 222 {
 223   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 224
 225   object_class->constructor = tp_tube_constructor;
 226   object_class->finalize = tp_tube_finalize;
 227   object_class->set_property = tp_tube_set_property;
 228   object_class->get_property = tp_tube_get_property;
 229
 230   g_object_class_install_property (object_class, PROP_CHANNEL,
 231       g_param_spec_object ("channel", "channel", "channel", TP_TYPE_CHANNEL,
 232       G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
 233
 234   g_object_class_install_property (object_class, PROP_STATE,
 235       g_param_spec_uint ("state", "state", "state",
 236         0, NUM_EMP_TUBE_CHANNEL_STATES, 0,
 237         G_PARAM_READABLE | G_PARAM_STATIC_NAME | G_PARAM_STATIC_STRINGS));
 238
 239   signals[DESTROY] = g_signal_new ("destroy",
 240       G_TYPE_FROM_CLASS (klass),
 241       G_SIGNAL_RUN_LAST,
 242       0, NULL, NULL,
 243       g_cclosure_marshal_VOID__VOID,
 244       G_TYPE_NONE, 0);
 245
 246   g_type_class_add_private (klass, sizeof (EmpathyTpTubePriv));
 247 }
 248
 249 static void
 250 empathy_tp_tube_init (EmpathyTpTube *tube)
 251 {
 252   EmpathyTpTubePriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (tube,
 253                 EMPATHY_TYPE_TP_TUBE, EmpathyTpTubePriv);
 254
 255   tube->priv = priv;
 256
 257   priv->factory = empathy_contact_factory_dup_singleton ();
 258 }
 259
 260 EmpathyTpTube *
 261 empathy_tp_tube_new (TpChannel *channel)
 262 {
 263   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 264
 265   return g_object_new (EMPATHY_TYPE_TP_TUBE, "channel", channel,  NULL);
 266 }
 267
 268 EmpathyTpTube *
 269 empathy_tp_tube_new_stream_tube (EmpathyContact *contact,
 270                                  TpSocketAddressType type,
 271                                  const gchar *hostname,
 272                                  guint port,
 273                                  const gchar *service,
 274                                  GHashTable *parameters)
 275 {
 276   MissionControl *mc;
 277   McAccount *account;
 278   TpConnection *connection;
 279   TpChannel *channel;
 280   gchar *object_path;
 281   GHashTable *params;
 282   GValue *address;
 283   GValue *control_param;
 284   EmpathyTpTube *tube = NULL;
 285   GError *error = NULL;
 286   GHashTable *request;
 287   GHashTable *channel_properties;
 288   GValue *value;
 289
 290   g_return_val_if_fail (EMPATHY_IS_CONTACT (contact), NULL);
 291   g_return_val_if_fail (hostname != NULL, NULL);
 292   g_return_val_if_fail (service != NULL, NULL);
 293
 294   mc = empathy_mission_control_dup_singleton ();
 295   account = empathy_contact_get_account (contact);
 296   connection = mission_control_get_tpconnection (mc, account, NULL);
 297   g_object_unref (mc);
 298
 299   tp_connection_run_until_ready (connection, FALSE, NULL, NULL);
 300
 301   request = g_hash_table_new_full (g_str_hash, g_str_equal, NULL,
 302       (GDestroyNotify) tp_g_value_slice_free);
 303
 304   /* org.freedesktop.Telepathy.Channel.ChannelType */
 305   value = tp_g_value_slice_new (G_TYPE_STRING);
 306   g_value_set_string (value, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE);
 307   g_hash_table_insert (request, TP_IFACE_CHANNEL ".ChannelType", value);
 308
 309   /* org.freedesktop.Telepathy.Channel.TargetHandleType */
 310   value = tp_g_value_slice_new (G_TYPE_UINT);
 311   g_value_set_uint (value, TP_HANDLE_TYPE_CONTACT);
 312   g_hash_table_insert (request, TP_IFACE_CHANNEL ".TargetHandleType", value);
 313
 314   /* org.freedesktop.Telepathy.Channel.TargetHandleType */
 315   value = tp_g_value_slice_new (G_TYPE_UINT);
 316   g_value_set_uint (value, empathy_contact_get_handle (contact));
 317   g_hash_table_insert (request, TP_IFACE_CHANNEL ".TargetHandle", value);
 318
 319   /* org.freedesktop.Telepathy.Channel.Type.StreamTube.Service */
 320   value = tp_g_value_slice_new (G_TYPE_STRING);
 321   g_value_set_string (value, service);
 322   g_hash_table_insert (request,
 323     EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE  ".Service", value);
 324
 325   if (!tp_cli_connection_interface_requests_run_create_channel (connection, -1,
 326     request, &object_path, &channel_properties, &error, NULL))
 327     {
 328       DEBUG ("Error requesting channel: %s", error->message);
 329       g_clear_error (&error);
 330       g_object_unref (connection);
 331       return NULL;
 332     }
 333
 334   DEBUG ("Offering a new stream tube");
 335
 336   channel = tp_channel_new_from_properties (connection, object_path,
 337       channel_properties, NULL);
 338
 339   tp_channel_run_until_ready (channel, NULL, NULL);
 340
 341   #define ADDRESS_TYPE dbus_g_type_get_struct ("GValueArray",\
 342       G_TYPE_STRING, G_TYPE_UINT, G_TYPE_INVALID)
 343   params = g_hash_table_new (g_str_hash, g_str_equal);
 344   address = tp_g_value_slice_new (ADDRESS_TYPE);
 345   g_value_take_boxed (address, dbus_g_type_specialized_construct (ADDRESS_TYPE));
 346   dbus_g_type_struct_set (address, 0, hostname, 1, port, G_MAXUINT);
 347   control_param = tp_g_value_slice_new (G_TYPE_STRING);
 348
 349   if (parameters == NULL)
 350     /* Pass an empty dict as parameters */
 351     parameters = g_hash_table_new (g_str_hash, g_str_equal);
 352   else
 353     g_hash_table_ref (parameters);
 354
 355   if (!emp_cli_channel_type_stream_tube_run_offer_stream_tube (
 356         TP_PROXY(channel), -1, type, address,
 357         TP_SOCKET_ACCESS_CONTROL_LOCALHOST, control_param, parameters,
 358         &error, NULL))
 359     {
 360       DEBUG ("Couldn't offer tube: %s", error->message);
 361       g_clear_error (&error);
 362       goto OUT;
 363     }
 364
 365   DEBUG ("Stream tube offered");
 366
 367   tube = empathy_tp_tube_new (channel);
 368
 369 OUT:
 370   g_object_unref (channel);
 371   g_free (object_path);
 372   g_hash_table_destroy (request);
 373   g_hash_table_destroy (channel_properties);
 374   tp_g_value_slice_free (address);
 375   tp_g_value_slice_free (control_param);
 376   g_object_unref (connection);
 377   g_hash_table_unref (parameters);
 378
 379   return tube;
 380 }
 381
 382 static void
 383 tp_tube_accept_stream_cb (TpProxy *proxy,
 384                           const GValue *address,
 385                           const GError *error,
 386                           gpointer user_data,
 387                           GObject *weak_object)
 388 {
 389   EmpathyTpTube *tube = EMPATHY_TP_TUBE (weak_object);
 390   EmpathyTpTubeAcceptData *data = (EmpathyTpTubeAcceptData *)user_data;
 391   EmpathyTpTubeAddress eaddress;
 392
 393   eaddress.type = data->type;
 394
 395   if (error)
 396     {
 397       DEBUG ("Error accepting tube: %s", error->message);
 398       data->callback (tube, NULL, error, data->user_data);
 399       return;
 400     }
 401
 402   switch (eaddress.type)
 403     {
 404       case TP_SOCKET_ADDRESS_TYPE_UNIX:
 405       case TP_SOCKET_ADDRESS_TYPE_ABSTRACT_UNIX:
 406         eaddress.a.socket.path = g_value_get_boxed (address);
 407         break;
 408      case TP_SOCKET_ADDRESS_TYPE_IPV4:
 409      case TP_SOCKET_ADDRESS_TYPE_IPV6:
 410         dbus_g_type_struct_get (address,
 411           0, &eaddress.a.inet.hostname,
 412           1, &eaddress.a.inet.port, G_MAXUINT);
 413         break;
 414     }
 415
 416    data->callback (tube, &eaddress, NULL, data->user_data);
 417 }
 418
 419 void
 420 empathy_tp_tube_accept_stream_tube (EmpathyTpTube *tube,
 421   TpSocketAddressType type, EmpatyTpTubeAcceptStreamTubeCb *callback,
 422   gpointer user_data)
 423 {
 424   EmpathyTpTubePriv *priv = GET_PRIV (tube);
 425   GValue *control_param;
 426   EmpathyTpTubeAcceptData *data;
 427
 428   g_return_if_fail (EMPATHY_IS_TP_TUBE (tube));
 429
 430   DEBUG ("Accepting stream tube");
 431   /* FIXME allow other acls */
 432   control_param = tp_g_value_slice_new (G_TYPE_STRING);
 433
 434   data = new_empathy_tp_tube_accept_data (type, callback, user_data);
 435
 436   emp_cli_channel_type_stream_tube_call_accept_stream_tube (
 437      TP_PROXY (priv->channel), -1, type, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 438      control_param, tp_tube_accept_stream_cb, data,
 439      free_empathy_tp_tube_accept_data, G_OBJECT (tube));
 440
 441   tp_g_value_slice_free (control_param);
 442 }