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