libempathy/empathy-dispatcher.c

   1 /* * Copyright (C) 2007-2008 Collabora Ltd.
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2.1 of the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  16  *
  17  * Authors: Xavier Claessens <xclaesse@gmail.com>
  18  */
  19
  20 #include <config.h>
  21
  22 #include <string.h>
  23
  24 #include <glib/gi18n-lib.h>
  25
  26 #include <telepathy-glib/enums.h>
  27 #include <telepathy-glib/connection.h>
  28 #include <telepathy-glib/util.h>
  29 #include <telepathy-glib/dbus.h>
  30 #include <telepathy-glib/proxy-subclass.h>
  31 #include <telepathy-glib/gtypes.h>
  32
  33 #include <libmissioncontrol/mission-control.h>
  34 #include <libmissioncontrol/mc-account.h>
  35
  36 #include <extensions/extensions.h>
  37
  38 #include "empathy-dispatcher.h"
  39 #include "empathy-utils.h"
  40 #include "empathy-tube-handler.h"
  41 #include "empathy-account-manager.h"
  42 #include "empathy-contact-factory.h"
  43 #include "empathy-tp-file.h"
  44 #include "empathy-chatroom-manager.h"
  45 #include "empathy-utils.h"
  46
  47 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  48 #include <libempathy/empathy-debug.h>
  49
  50 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyDispatcher)
  51 typedef struct
  52 {
  53   EmpathyAccountManager *account_manager;
  54   MissionControl *mc;
  55   /* connection to connection data mapping */
  56   GHashTable *connections;
  57   /* accounts to connection mapping */
  58   GHashTable *accounts;
  59   gpointer token;
  60   GSList *tubes;
  61
  62   /* channels which the dispatcher is listening "invalidated" */
  63   GList *channels;
  64 } EmpathyDispatcherPriv;
  65
  66 G_DEFINE_TYPE (EmpathyDispatcher, empathy_dispatcher, G_TYPE_OBJECT);
  67
  68 enum
  69 {
  70   OBSERVE,
  71   APPROVE,
  72   DISPATCH,
  73   LAST_SIGNAL
  74 };
  75
  76 static guint signals[LAST_SIGNAL];
  77 static EmpathyDispatcher *dispatcher = NULL;
  78
  79 typedef struct
  80 {
  81   EmpathyDispatcher *dispatcher;
  82   EmpathyDispatchOperation *operation;
  83   TpConnection *connection;
  84   gchar *channel_type;
  85   guint handle_type;
  86   guint handle;
  87   EmpathyContact *contact;
  88
  89   /* Properties to pass to the channel when requesting it */
  90   GHashTable *request;
  91   EmpathyDispatcherRequestCb *cb;
  92   gpointer user_data;
  93   gpointer *request_data;
  94 } DispatcherRequestData;
  95
  96 typedef struct
  97 {
  98   TpChannel *channel;
  99   /* Channel type specific wrapper object */
 100   GObject *channel_wrapper;
 101 } DispatchData;
 102
 103 typedef struct
 104 {
 105   McAccount *account;
 106   /* ObjectPath => DispatchData.. */
 107   GHashTable *dispatched_channels;
 108   /* ObjectPath -> EmpathyDispatchOperations */
 109   GHashTable *dispatching_channels;
 110   /* ObjectPath -> EmpathyDispatchOperations */
 111   GHashTable *outstanding_channels;
 112   /* List of DispatcherRequestData */
 113   GList *outstanding_requests;
 114   /* List of requestable channel classes */
 115   GPtrArray *requestable_channels;
 116 } ConnectionData;
 117
 118 static DispatchData *
 119 new_dispatch_data (TpChannel *channel,
 120                    GObject *channel_wrapper)
 121 {
 122   DispatchData *d = g_slice_new0 (DispatchData);
 123   d->channel = g_object_ref (channel);
 124   if (channel_wrapper != NULL)
 125     d->channel_wrapper = g_object_ref (channel_wrapper);
 126
 127   return d;
 128 }
 129
 130 static void
 131 free_dispatch_data (DispatchData *data)
 132 {
 133   g_object_unref (data->channel);
 134   if (data->channel_wrapper != NULL)
 135     g_object_unref (data->channel_wrapper);
 136
 137   g_slice_free (DispatchData, data);
 138 }
 139
 140 static DispatcherRequestData *
 141 new_dispatcher_request_data (EmpathyDispatcher *dispatcher,
 142                              TpConnection *connection,
 143                              const gchar *channel_type,
 144                              guint handle_type,
 145                              guint handle,
 146                              GHashTable *request,
 147                              EmpathyContact *contact,
 148                              EmpathyDispatcherRequestCb *cb,
 149                              gpointer user_data)
 150 {
 151   DispatcherRequestData *result = g_slice_new0 (DispatcherRequestData);
 152
 153   result->dispatcher = g_object_ref (dispatcher);
 154   result->connection = connection;
 155
 156   result->channel_type = g_strdup (channel_type);
 157   result->handle_type = handle_type;
 158   result->handle = handle;
 159   result->request = request;
 160
 161   if (contact != NULL)
 162     result->contact = g_object_ref (contact);
 163
 164   result->cb = cb;
 165   result->user_data = user_data;
 166
 167   return result;
 168 }
 169
 170 static void
 171 free_dispatcher_request_data (DispatcherRequestData *r)
 172 {
 173   g_free (r->channel_type);
 174
 175   if (r->dispatcher != NULL)
 176     g_object_unref (r->dispatcher);
 177
 178   if (r->contact != NULL)
 179     g_object_unref (r->contact);
 180
 181   if (r->request != NULL)
 182     g_hash_table_unref (r->request);
 183
 184   g_slice_free (DispatcherRequestData, r);
 185 }
 186
 187 static ConnectionData *
 188 new_connection_data (McAccount *account)
 189 {
 190   ConnectionData *cd = g_slice_new0 (ConnectionData);
 191   cd->account = g_object_ref (account);
 192
 193   cd->dispatched_channels = g_hash_table_new_full (g_str_hash, g_str_equal,
 194       g_free, (GDestroyNotify) free_dispatch_data);
 195
 196   cd->dispatching_channels = g_hash_table_new_full (g_str_hash, g_str_equal,
 197       g_free, g_object_unref);
 198
 199   cd->outstanding_channels = g_hash_table_new_full (g_str_hash, g_str_equal,
 200       g_free, NULL);
 201
 202   return cd;
 203 }
 204
 205 static void
 206 free_connection_data (ConnectionData *cd)
 207 {
 208   GList *l;
 209   g_object_unref (cd->account);
 210   g_hash_table_destroy (cd->dispatched_channels);
 211   g_hash_table_destroy (cd->dispatching_channels);
 212   int i;
 213
 214   for (l = cd->outstanding_requests ; l != NULL; l = g_list_delete_link (l,l))
 215     {
 216       free_dispatcher_request_data (l->data);
 217     }
 218
 219   if (cd->requestable_channels  != NULL)
 220     {
 221       for (i = 0 ; i < cd->requestable_channels->len ; i++)
 222           g_value_array_free (
 223             g_ptr_array_index (cd->requestable_channels, i));
 224       g_ptr_array_free (cd->requestable_channels, TRUE);
 225     }
 226 }
 227
 228 static void
 229 dispatcher_connection_invalidated_cb (TpConnection *connection,
 230                                       guint domain,
 231                                       gint code,
 232                                       gchar *message,
 233                                       EmpathyDispatcher *dispatcher)
 234 {
 235   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 236   ConnectionData *cd;
 237
 238   DEBUG ("Error: %s", message);
 239   cd = g_hash_table_lookup (priv->connections, connection);
 240
 241   g_hash_table_remove (priv->accounts, cd->account);
 242   g_hash_table_remove (priv->connections, connection);
 243 }
 244
 245 static gboolean
 246 dispatcher_operation_can_start (EmpathyDispatcher *self,
 247                                 EmpathyDispatchOperation *operation,
 248                                 ConnectionData *cd)
 249 {
 250   GList *l;
 251   const gchar *channel_type =
 252     empathy_dispatch_operation_get_channel_type (operation);
 253
 254   for (l = cd->outstanding_requests; l != NULL; l = g_list_next (l))
 255     {
 256       DispatcherRequestData *d = (DispatcherRequestData *) l->data;
 257
 258       if (d->operation == NULL && !tp_strdiff (d->channel_type, channel_type))
 259         {
 260           return FALSE;
 261         }
 262     }
 263
 264   return TRUE;
 265 }
 266
 267 static void
 268 dispatch_operation_flush_requests (EmpathyDispatcher *dispatcher,
 269                                    EmpathyDispatchOperation *operation,
 270                                    GError *error,
 271                                    ConnectionData *cd)
 272 {
 273   GList *l;
 274
 275   l = cd->outstanding_requests;
 276   while (l != NULL)
 277     {
 278       DispatcherRequestData *d = (DispatcherRequestData *) l->data;
 279       GList *lt = l;
 280
 281       l = g_list_next (l);
 282
 283       if (d->operation == operation)
 284         {
 285           if (d->cb != NULL)
 286             {
 287               if (error != NULL)
 288                 d->cb (NULL, error, d->user_data);
 289               else
 290                 d->cb (operation, NULL, d->user_data);
 291             }
 292
 293           cd->outstanding_requests = g_list_delete_link
 294             (cd->outstanding_requests, lt);
 295
 296           free_dispatcher_request_data (d);
 297         }
 298     }
 299 }
 300
 301 static void
 302 dispatcher_channel_invalidated_cb (TpProxy *proxy,
 303                                    guint domain,
 304                                    gint code,
 305                                    gchar *message,
 306                                    EmpathyDispatcher *dispatcher)
 307 {
 308   /* Channel went away... */
 309   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 310   TpConnection *connection;
 311   EmpathyDispatchOperation *operation;
 312   ConnectionData *cd;
 313   const gchar *object_path;
 314
 315   connection = tp_channel_borrow_connection (TP_CHANNEL (proxy));
 316
 317   cd = g_hash_table_lookup (priv->connections, connection);
 318   /* Connection itself invalidated? */
 319   if (cd == NULL)
 320     return;
 321
 322   object_path = tp_proxy_get_object_path (proxy);
 323
 324   DEBUG ("Channel %s invalidated", object_path);
 325
 326   g_hash_table_remove (cd->dispatched_channels, object_path);
 327   g_hash_table_remove (cd->dispatching_channels, object_path);
 328
 329   priv->channels = g_list_remove (priv->channels, proxy);
 330
 331   operation = g_hash_table_lookup (cd->outstanding_channels, object_path);
 332   if (operation != NULL)
 333     {
 334       GError error = { domain, code, message };
 335       dispatch_operation_flush_requests (dispatcher, operation, &error, cd);
 336       g_hash_table_remove (cd->outstanding_channels, object_path);
 337       g_object_unref (operation);
 338     }
 339 }
 340
 341 static void
 342 dispatch_operation_approved_cb (EmpathyDispatchOperation *operation,
 343                                 EmpathyDispatcher *dispatcher)
 344 {
 345   g_assert (empathy_dispatch_operation_is_incoming (operation));
 346   DEBUG ("Send of for dispatching: %s",
 347     empathy_dispatch_operation_get_object_path (operation));
 348   g_signal_emit (dispatcher, signals[DISPATCH], 0, operation);
 349 }
 350
 351 static void
 352 dispatch_operation_claimed_cb (EmpathyDispatchOperation *operation,
 353                                EmpathyDispatcher *dispatcher)
 354 {
 355   /* Our job is done, remove the dispatch operation and mark the channel as
 356    * dispatched */
 357   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 358   TpConnection *connection;
 359   ConnectionData *cd;
 360   const gchar *object_path;
 361
 362   connection = empathy_dispatch_operation_get_tp_connection (operation);
 363   cd = g_hash_table_lookup (priv->connections, connection);
 364   g_assert (cd != NULL);
 365   g_object_unref (G_OBJECT (connection));
 366
 367   object_path = empathy_dispatch_operation_get_object_path (operation);
 368
 369   if (g_hash_table_lookup (cd->dispatched_channels, object_path) == NULL)
 370     {
 371       DispatchData *d;
 372       d = new_dispatch_data (
 373         empathy_dispatch_operation_get_channel (operation),
 374         empathy_dispatch_operation_get_channel_wrapper (operation));
 375       g_hash_table_insert (cd->dispatched_channels,
 376         g_strdup (object_path), d);
 377     }
 378   g_hash_table_remove (cd->dispatching_channels, object_path);
 379
 380   DEBUG ("Channel claimed: %s", object_path);
 381 }
 382
 383 static void
 384 dispatch_operation_ready_cb (EmpathyDispatchOperation *operation,
 385                              EmpathyDispatcher *dispatcher)
 386 {
 387   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 388   TpConnection *connection;
 389   ConnectionData *cd;
 390   EmpathyDispatchOperationState status;
 391
 392   g_signal_connect (operation, "approved",
 393     G_CALLBACK (dispatch_operation_approved_cb), dispatcher);
 394
 395   g_signal_connect (operation, "claimed",
 396     G_CALLBACK (dispatch_operation_claimed_cb), dispatcher);
 397
 398   /* Signal the observers */
 399   DEBUG ("Send to observers: %s",
 400     empathy_dispatch_operation_get_object_path (operation));
 401   g_signal_emit (dispatcher, signals[OBSERVE], 0, operation);
 402
 403   empathy_dispatch_operation_start (operation);
 404
 405   /* Signal potential requestors */
 406   connection =  empathy_dispatch_operation_get_tp_connection (operation);
 407   cd = g_hash_table_lookup (priv->connections, connection);
 408   g_assert (cd != NULL);
 409   g_object_unref (G_OBJECT (connection));
 410
 411   g_object_ref (operation);
 412   g_object_ref (dispatcher);
 413
 414   dispatch_operation_flush_requests (dispatcher, operation, NULL, cd);
 415   status = empathy_dispatch_operation_get_status (operation);
 416   g_object_unref (operation);
 417
 418   if (status == EMPATHY_DISPATCHER_OPERATION_STATE_CLAIMED)
 419     return;
 420
 421   if (status == EMPATHY_DISPATCHER_OPERATION_STATE_APPROVING)
 422     {
 423       DEBUG ("Send to approvers: %s",
 424         empathy_dispatch_operation_get_object_path (operation));
 425       g_signal_emit (dispatcher, signals[APPROVE], 0, operation);
 426     }
 427   else
 428     {
 429       g_assert (status == EMPATHY_DISPATCHER_OPERATION_STATE_DISPATCHING);
 430       DEBUG ("Send of for dispatching: %s",
 431         empathy_dispatch_operation_get_object_path (operation));
 432       g_signal_emit (dispatcher, signals[DISPATCH], 0, operation);
 433     }
 434
 435   g_object_unref (dispatcher);
 436 }
 437
 438 static void
 439 dispatcher_start_dispatching (EmpathyDispatcher *self,
 440                               EmpathyDispatchOperation *operation,
 441                               ConnectionData *cd)
 442 {
 443   const gchar *object_path =
 444     empathy_dispatch_operation_get_object_path (operation);
 445
 446   DEBUG ("Dispatching process started for %s", object_path);
 447
 448   if (g_hash_table_lookup (cd->dispatching_channels, object_path) == NULL)
 449     {
 450       g_assert (g_hash_table_lookup (cd->outstanding_channels,
 451         object_path) == NULL);
 452
 453       g_hash_table_insert (cd->dispatching_channels,
 454         g_strdup (object_path), operation);
 455
 456       switch (empathy_dispatch_operation_get_status (operation))
 457         {
 458           case EMPATHY_DISPATCHER_OPERATION_STATE_PREPARING:
 459             g_signal_connect (operation, "ready",
 460               G_CALLBACK (dispatch_operation_ready_cb), dispatcher);
 461             break;
 462           case EMPATHY_DISPATCHER_OPERATION_STATE_PENDING:
 463             dispatch_operation_ready_cb (operation, dispatcher);
 464             break;
 465           default:
 466             g_assert_not_reached();
 467         }
 468
 469     }
 470   else if (empathy_dispatch_operation_get_status (operation) >=
 471       EMPATHY_DISPATCHER_OPERATION_STATE_PENDING)
 472     {
 473       /* Already dispatching and the operation is pending, thus the observers
 474        * have seen it (if applicable), so we can flush the request right away.
 475        */
 476       dispatch_operation_flush_requests (self, operation, NULL, cd);
 477     }
 478 }
 479
 480 static void
 481 dispatcher_flush_outstanding_operations (EmpathyDispatcher *self,
 482                                          ConnectionData *cd)
 483 {
 484   GHashTableIter iter;
 485   gpointer value;
 486
 487   g_hash_table_iter_init (&iter, cd->outstanding_channels);
 488   while (g_hash_table_iter_next (&iter, NULL, &value))
 489     {
 490       EmpathyDispatchOperation *operation = EMPATHY_DISPATCH_OPERATION (value);
 491
 492       if (dispatcher_operation_can_start (self, operation, cd))
 493         {
 494           dispatcher_start_dispatching (dispatcher, operation, cd);
 495           g_hash_table_iter_remove (&iter);
 496         }
 497     }
 498 }
 499
 500 static void
 501 dispatcher_connection_new_channel (EmpathyDispatcher *dispatcher,
 502                                    TpConnection *connection,
 503                                    const gchar *object_path,
 504                                    const gchar *channel_type,
 505                                    guint handle_type,
 506                                    guint handle,
 507                                    GHashTable *properties,
 508                                    gboolean incoming)
 509 {
 510   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 511   TpChannel         *channel;
 512   ConnectionData *cd;
 513   EmpathyDispatchOperation *operation;
 514   EmpathyContact *contact = NULL;
 515   int i;
 516   /* Channel types we never want to dispatch because they're either deprecated
 517    * or can't sensibly be dispatch (e.g. channels that should always be
 518    * requested) */
 519   const char *blacklist[] = {
 520     TP_IFACE_CHANNEL_TYPE_CONTACT_LIST,
 521     TP_IFACE_CHANNEL_TYPE_TUBES,
 522     TP_IFACE_CHANNEL_TYPE_ROOM_LIST,
 523     NULL
 524   };
 525
 526   cd = g_hash_table_lookup (priv->connections, connection);
 527
 528   /* Don't bother with channels we have already dispatched or are dispatching
 529    * currently. This can happen when NewChannel(s) is fired after
 530    * RequestChannel/CreateChannel/EnsureChannel */
 531   if (g_hash_table_lookup (cd->dispatched_channels, object_path) != NULL)
 532     return;
 533
 534   if (g_hash_table_lookup (cd->dispatching_channels, object_path) != NULL)
 535     return;
 536
 537   /* Should never occur, but just in case a CM fires spurious NewChannel(s)
 538    * signals */
 539   if (g_hash_table_lookup (cd->outstanding_channels, object_path) != NULL)
 540     return;
 541
 542   /* Only pick up non-requested text and file channels. For all other it
 543    * doesn't make sense to handle it if we didn't request it. The same goes
 544    * for channels we discovered by the Channels property or ListChannels */
 545   if (!incoming && tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_TEXT)
 546         && tp_strdiff (channel_type, TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER))
 547     {
 548       DEBUG ("Ignoring incoming channel of type %s on %s",
 549         channel_type, object_path);
 550       return;
 551     }
 552
 553   for (i = 0 ; blacklist[i] != NULL; i++)
 554     {
 555       if (!tp_strdiff (channel_type, blacklist[i]))
 556         {
 557           DEBUG ("Ignoring blacklisted channel type %s on %s",
 558             channel_type, object_path);
 559           return;
 560         }
 561     }
 562
 563   DEBUG ("New channel of type %s on %s", channel_type, object_path);
 564
 565   if (properties == NULL)
 566     channel = tp_channel_new (connection, object_path, channel_type,
 567       handle_type, handle, NULL);
 568   else
 569     channel = tp_channel_new_from_properties (connection, object_path,
 570       properties, NULL);
 571
 572   g_signal_connect (channel, "invalidated",
 573     G_CALLBACK (dispatcher_channel_invalidated_cb),
 574     dispatcher);
 575
 576   priv->channels = g_list_prepend (priv->channels, channel);
 577
 578   if (handle_type == TP_CONN_HANDLE_TYPE_CONTACT)
 579     {
 580       EmpathyContactFactory *factory = empathy_contact_factory_dup_singleton ();
 581       contact = empathy_contact_factory_get_from_handle (factory,
 582         cd->account, handle);
 583       g_object_unref (factory);
 584     }
 585
 586   operation = empathy_dispatch_operation_new (connection, channel, contact,
 587     incoming);
 588
 589   g_object_unref (channel);
 590
 591   if (incoming)
 592     {
 593       /* Request could either be by us or by a remote party. If there are no
 594        * outstanding requests for this channel type we can assume it's remote.
 595        * Otherwise we wait untill they are all satisfied */
 596       if (dispatcher_operation_can_start (dispatcher, operation, cd))
 597         dispatcher_start_dispatching (dispatcher, operation, cd);
 598       else
 599         g_hash_table_insert (cd->outstanding_channels,
 600           g_strdup (object_path), operation);
 601     }
 602   else
 603     {
 604       dispatcher_start_dispatching (dispatcher, operation, cd);
 605     }
 606 }
 607
 608 static void
 609 dispatcher_connection_new_channel_cb (TpConnection *connection,
 610                                       const gchar *object_path,
 611                                       const gchar  *channel_type,
 612                                       guint handle_type,
 613                                       guint handle,
 614                                       gboolean suppress_handler,
 615                                       gpointer user_data,
 616                                       GObject *object)
 617 {
 618   EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (object);
 619
 620   /* Empathy heavily abuses surpress handler (don't try this at home), if
 621    * surpress handler is true then it is an outgoing channel, which is
 622    * requested either by us or some other party (like the megaphone applet).
 623    * Otherwise it's an incoming channel */
 624   dispatcher_connection_new_channel (dispatcher, connection,
 625     object_path, channel_type, handle_type, handle, NULL, !suppress_handler);
 626 }
 627
 628 static void
 629 dispatcher_connection_new_channel_with_properties (EmpathyDispatcher *dispatcher,
 630                                                    TpConnection *connection,
 631                                                    const gchar *object_path,
 632                                                    GHashTable *properties)
 633 {
 634   const gchar *channel_type;
 635   guint handle_type;
 636   guint handle;
 637   gboolean requested;
 638   gboolean valid;
 639
 640
 641   channel_type = tp_asv_get_string (properties,
 642     TP_IFACE_CHANNEL ".ChannelType");
 643   if (channel_type == NULL)
 644     {
 645       g_message ("%s had an invalid ChannelType property", object_path);
 646       return;
 647     }
 648
 649   handle_type = tp_asv_get_uint32 (properties,
 650     TP_IFACE_CHANNEL ".TargetHandleType", &valid);
 651   if (!valid)
 652     {
 653       g_message ("%s had an invalid TargetHandleType property", object_path);
 654       return;
 655     }
 656
 657   handle = tp_asv_get_uint32 (properties,
 658     TP_IFACE_CHANNEL ".TargetHandle", &valid);
 659   if (!valid)
 660     {
 661       g_message ("%s had an invalid TargetHandle property", object_path);
 662       return;
 663     }
 664
 665   /* We assume there is no channel dispather, so we're the only one dispatching
 666    * it. Which means that a requested channel it is outgoing one */
 667   requested = tp_asv_get_boolean (properties,
 668     TP_IFACE_CHANNEL ".Requested", &valid);
 669   if (!valid)
 670     {
 671       g_message ("%s had an invalid Requested property", object_path);
 672       return;
 673     }
 674
 675   dispatcher_connection_new_channel (dispatcher, connection,
 676     object_path, channel_type, handle_type, handle, properties, !requested);
 677 }
 678
 679 static void
 680 dispatcher_connection_new_channels_cb (TpConnection *connection,
 681                                        const GPtrArray *channels,
 682                                        gpointer user_data,
 683                                        GObject *object)
 684 {
 685   EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (object);
 686   int i;
 687
 688   for (i = 0; i < channels->len ; i++)
 689     {
 690       GValueArray *arr = g_ptr_array_index (channels, i);
 691       const gchar *object_path;
 692       GHashTable *properties;
 693
 694       object_path = g_value_get_boxed (g_value_array_get_nth (arr, 0));
 695       properties = g_value_get_boxed (g_value_array_get_nth (arr, 1));
 696
 697       dispatcher_connection_new_channel_with_properties (dispatcher,
 698         connection, object_path, properties);
 699     }
 700 }
 701
 702 static void
 703 dispatcher_connection_got_all (TpProxy *proxy,
 704                                GHashTable *properties,
 705                                const GError *error,
 706                                gpointer user_data,
 707                                GObject *object)
 708 {
 709   EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (object);
 710   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 711   GPtrArray *channels;
 712   GPtrArray *requestable_channels;
 713
 714   if (error) {
 715     DEBUG ("Error: %s", error->message);
 716     return;
 717   }
 718
 719   channels = tp_asv_get_boxed (properties, "Channels",
 720     TP_ARRAY_TYPE_CHANNEL_DETAILS_LIST);
 721
 722   if (channels == NULL)
 723     DEBUG ("No Channels property !?! on connection");
 724   else
 725     dispatcher_connection_new_channels_cb (TP_CONNECTION (proxy),
 726       channels, NULL, object);
 727
 728   requestable_channels = tp_asv_get_boxed (properties,
 729     "RequestableChannelClasses", TP_ARRAY_TYPE_REQUESTABLE_CHANNEL_CLASS_LIST);
 730
 731   if (requestable_channels == NULL)
 732     DEBUG ("No RequestableChannelClasses property !?! on connection");
 733   else
 734     {
 735       ConnectionData *cd;
 736
 737       cd = g_hash_table_lookup (priv->connections, proxy);
 738       g_assert (cd != NULL);
 739
 740       cd->requestable_channels = g_boxed_copy (
 741         TP_ARRAY_TYPE_REQUESTABLE_CHANNEL_CLASS_LIST, requestable_channels);
 742     }
 743 }
 744
 745 static void
 746 dispatcher_connection_list_channels_cb (TpConnection    *connection,
 747                                         const GPtrArray *channels,
 748                                         const GError    *error,
 749                                         gpointer         user_data,
 750                                         GObject         *dispatcher)
 751 {
 752   int i;
 753
 754   if (error)
 755     {
 756       DEBUG ("Error: %s", error->message);
 757       return;
 758     }
 759
 760   for (i = 0; i < channels->len; i++)
 761     {
 762       GValueArray *values;
 763
 764       values = g_ptr_array_index (channels, i);
 765       /* We don't have any extra info, so assume already existing channels are
 766        * incoming... */
 767       dispatcher_connection_new_channel (EMPATHY_DISPATCHER (dispatcher),
 768         connection,
 769         g_value_get_boxed (g_value_array_get_nth (values, 0)),
 770         g_value_get_string (g_value_array_get_nth (values, 1)),
 771         g_value_get_uint (g_value_array_get_nth (values, 2)),
 772         g_value_get_uint (g_value_array_get_nth (values, 3)),
 773         NULL, TRUE);
 774     }
 775 }
 776
 777 static void
 778 dispatcher_connection_advertise_capabilities_cb (TpConnection    *connection,
 779                                                  const GPtrArray *capabilities,
 780                                                  const GError    *error,
 781                                                  gpointer         user_data,
 782                                                  GObject         *dispatcher)
 783 {
 784   if (error)
 785     DEBUG ("Error: %s", error->message);
 786 }
 787
 788 static void
 789 dispatcher_connection_ready_cb (TpConnection *connection,
 790                                 const GError *error,
 791                                 gpointer dispatcher)
 792 {
 793   GPtrArray   *capabilities;
 794   GType        cap_type;
 795   GValue       cap = {0, };
 796   const gchar *remove = NULL;
 797
 798   if (error)
 799     {
 800       dispatcher_connection_invalidated_cb (connection, error->domain,
 801         error->code, error->message, dispatcher);
 802       return;
 803     }
 804
 805   g_signal_connect (connection, "invalidated",
 806     G_CALLBACK (dispatcher_connection_invalidated_cb), dispatcher);
 807
 808   if (tp_proxy_has_interface_by_id (TP_PROXY (connection),
 809       TP_IFACE_QUARK_CONNECTION_INTERFACE_REQUESTS))
 810     {
 811       tp_cli_connection_interface_requests_connect_to_new_channels (connection,
 812         dispatcher_connection_new_channels_cb,
 813         NULL, NULL, G_OBJECT (dispatcher), NULL);
 814
 815       tp_cli_dbus_properties_call_get_all (connection, -1,
 816         TP_IFACE_CONNECTION_INTERFACE_REQUESTS,
 817         dispatcher_connection_got_all,
 818         NULL, NULL, dispatcher);
 819     }
 820   else
 821     {
 822       tp_cli_connection_connect_to_new_channel (connection,
 823         dispatcher_connection_new_channel_cb,
 824         NULL, NULL, G_OBJECT (dispatcher), NULL);
 825
 826       tp_cli_connection_call_list_channels (connection, -1,
 827         dispatcher_connection_list_channels_cb, NULL, NULL,
 828         G_OBJECT (dispatcher));
 829
 830     }
 831
 832   /* Advertise VoIP capabilities */
 833   capabilities = g_ptr_array_sized_new (1);
 834   cap_type = dbus_g_type_get_struct ("GValueArray", G_TYPE_STRING,
 835     G_TYPE_UINT, G_TYPE_INVALID);
 836   g_value_init (&cap, cap_type);
 837   g_value_take_boxed (&cap, dbus_g_type_specialized_construct (cap_type));
 838   dbus_g_type_struct_set (&cap,
 839         0, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 840         1, TP_CHANNEL_MEDIA_CAPABILITY_AUDIO |
 841            TP_CHANNEL_MEDIA_CAPABILITY_VIDEO |
 842            TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_STUN  |
 843            TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_GTALK_P2P, G_MAXUINT);
 844   g_ptr_array_add (capabilities, g_value_get_boxed (&cap));
 845
 846   tp_cli_connection_interface_capabilities_call_advertise_capabilities (
 847     connection, -1, capabilities, &remove,
 848     dispatcher_connection_advertise_capabilities_cb,
 849     NULL, NULL, G_OBJECT (dispatcher));
 850
 851   g_value_unset (&cap);
 852   g_ptr_array_free (capabilities, TRUE);
 853 }
 854
 855 static void
 856 dispatcher_update_account (EmpathyDispatcher *dispatcher,
 857                            McAccount *account)
 858 {
 859   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
 860   TpConnection *connection;
 861
 862   connection = g_hash_table_lookup (priv->accounts, account);
 863   if (connection != NULL)
 864     return;
 865
 866   connection = mission_control_get_tpconnection (priv->mc, account, NULL);
 867   if (connection == NULL)
 868     return;
 869
 870   g_hash_table_insert (priv->connections, g_object_ref (connection),
 871     new_connection_data (account));
 872
 873   g_hash_table_insert (priv->accounts, g_object_ref (account),
 874     g_object_ref (connection));
 875
 876   tp_connection_call_when_ready (connection, dispatcher_connection_ready_cb,
 877     dispatcher);
 878
 879   g_object_unref (connection);
 880 }
 881
 882 static void
 883 dispatcher_account_connection_cb (EmpathyAccountManager *manager,
 884                                   McAccount *account,
 885                                   TpConnectionStatusReason reason,
 886                                   TpConnectionStatus status,
 887                                   TpConnectionStatus previous,
 888                                   EmpathyDispatcher *dispatcher)
 889 {
 890   dispatcher_update_account (dispatcher, account);
 891 }
 892
 893 static GObject*
 894 dispatcher_constructor (GType type,
 895                         guint n_construct_params,
 896                         GObjectConstructParam *construct_params)
 897 {
 898   GObject *retval;
 899
 900   if (dispatcher == NULL)
 901     {
 902       retval = G_OBJECT_CLASS (empathy_dispatcher_parent_class)->constructor
 903           (type, n_construct_params, construct_params);
 904
 905       dispatcher = EMPATHY_DISPATCHER (retval);
 906       g_object_add_weak_pointer (retval, (gpointer) &dispatcher);
 907     }
 908   else
 909     {
 910       retval = g_object_ref (dispatcher);
 911     }
 912
 913   return retval;
 914 }
 915
 916 static void
 917 dispatcher_finalize (GObject *object)
 918 {
 919   EmpathyDispatcherPriv *priv = GET_PRIV (object);
 920   GList *l;
 921   GHashTableIter iter;
 922   gpointer connection;
 923
 924   g_signal_handlers_disconnect_by_func (priv->account_manager,
 925       dispatcher_account_connection_cb, object);
 926
 927   for (l = priv->channels; l; l = l->next)
 928     {
 929       g_signal_handlers_disconnect_by_func (l->data,
 930           dispatcher_channel_invalidated_cb, object);
 931     }
 932
 933   g_list_free (priv->channels);
 934
 935   g_hash_table_iter_init (&iter, priv->connections);
 936   while (g_hash_table_iter_next (&iter, &connection, NULL))
 937     {
 938       g_signal_handlers_disconnect_by_func (connection,
 939           dispatcher_connection_invalidated_cb, object);
 940     }
 941
 942   g_object_unref (priv->account_manager);
 943   g_object_unref (priv->mc);
 944
 945   g_hash_table_destroy (priv->accounts);
 946   g_hash_table_destroy (priv->connections);
 947 }
 948
 949 static void
 950 empathy_dispatcher_class_init (EmpathyDispatcherClass *klass)
 951 {
 952   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 953
 954   object_class->finalize = dispatcher_finalize;
 955   object_class->constructor = dispatcher_constructor;
 956
 957   signals[OBSERVE] =
 958     g_signal_new ("observe",
 959       G_TYPE_FROM_CLASS (klass),
 960       G_SIGNAL_RUN_LAST,
 961       0,
 962       NULL, NULL,
 963       g_cclosure_marshal_VOID__OBJECT,
 964       G_TYPE_NONE,
 965       1, EMPATHY_TYPE_DISPATCH_OPERATION);
 966
 967   signals[APPROVE] =
 968     g_signal_new ("approve",
 969       G_TYPE_FROM_CLASS (klass),
 970       G_SIGNAL_RUN_LAST,
 971       0,
 972       NULL, NULL,
 973       g_cclosure_marshal_VOID__OBJECT,
 974       G_TYPE_NONE,
 975       1, EMPATHY_TYPE_DISPATCH_OPERATION);
 976
 977   signals[DISPATCH] =
 978     g_signal_new ("dispatch",
 979       G_TYPE_FROM_CLASS (klass),
 980       G_SIGNAL_RUN_LAST,
 981       0,
 982       NULL, NULL,
 983       g_cclosure_marshal_VOID__OBJECT,
 984       G_TYPE_NONE,
 985       1, EMPATHY_TYPE_DISPATCH_OPERATION);
 986
 987   g_type_class_add_private (object_class, sizeof (EmpathyDispatcherPriv));
 988
 989 }
 990
 991 static void
 992 empathy_dispatcher_init (EmpathyDispatcher *dispatcher)
 993 {
 994   GList *accounts, *l;
 995   EmpathyDispatcherPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (dispatcher,
 996     EMPATHY_TYPE_DISPATCHER, EmpathyDispatcherPriv);
 997
 998   dispatcher->priv = priv;
 999   priv->mc = empathy_mission_control_dup_singleton ();
1000   priv->account_manager = empathy_account_manager_dup_singleton ();
1001
1002   g_signal_connect (priv->account_manager,
1003     "account-connection-changed",
1004     G_CALLBACK (dispatcher_account_connection_cb),
1005     dispatcher);
1006
1007   priv->accounts = g_hash_table_new_full (empathy_account_hash,
1008         empathy_account_equal, g_object_unref, g_object_unref);
1009
1010   priv->connections = g_hash_table_new_full (g_direct_hash, g_direct_equal,
1011     g_object_unref, (GDestroyNotify) free_connection_data);
1012
1013   priv->channels = NULL;
1014
1015   accounts = mc_accounts_list_by_enabled (TRUE);
1016
1017   for (l = accounts; l; l = l->next)
1018     {
1019       dispatcher_update_account (dispatcher, l->data);
1020       g_object_unref (l->data);
1021     }
1022   g_list_free (accounts);
1023 }
1024
1025 EmpathyDispatcher *
1026 empathy_dispatcher_dup_singleton (void)
1027 {
1028   return EMPATHY_DISPATCHER (g_object_new (EMPATHY_TYPE_DISPATCHER, NULL));
1029 }
1030
1031 static void
1032 dispatcher_request_failed (EmpathyDispatcher *dispatcher,
1033                            DispatcherRequestData *request_data,
1034                            const GError *error)
1035 {
1036   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1037   ConnectionData *conn_data;
1038
1039   conn_data = g_hash_table_lookup (priv->connections, request_data->connection);
1040   if (request_data->cb != NULL)
1041     request_data->cb (NULL, error, request_data->user_data);
1042
1043   conn_data->outstanding_requests =
1044       g_list_remove (conn_data->outstanding_requests, request_data);
1045   free_dispatcher_request_data (request_data);
1046 }
1047
1048 static void
1049 dispatcher_connection_new_requested_channel (EmpathyDispatcher *dispatcher,
1050                                              DispatcherRequestData *request_data,
1051                                              const gchar *object_path,
1052                                              GHashTable *properties,
1053                                              const GError *error)
1054 {
1055   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1056   EmpathyDispatchOperation *operation = NULL;
1057   ConnectionData *conn_data;
1058
1059   conn_data = g_hash_table_lookup (priv->connections,
1060     request_data->connection);
1061
1062   if (error)
1063     {
1064       DEBUG ("Channel request failed: %s", error->message);
1065
1066       dispatcher_request_failed (dispatcher, request_data, error);
1067
1068       goto out;
1069     }
1070
1071   operation = g_hash_table_lookup (conn_data->outstanding_channels,
1072     object_path);
1073
1074   if (operation != NULL)
1075     g_hash_table_remove (conn_data->outstanding_channels, object_path);
1076   else
1077     operation = g_hash_table_lookup (conn_data->dispatching_channels,
1078         object_path);
1079
1080   if (operation == NULL)
1081     {
1082       DispatchData *data = g_hash_table_lookup (conn_data->dispatched_channels,
1083         object_path);
1084
1085       if (data != NULL)
1086         {
1087           operation = empathy_dispatch_operation_new_with_wrapper (
1088             request_data->connection,
1089             data->channel, request_data->contact, FALSE,
1090             data->channel_wrapper);
1091         }
1092       else
1093         {
1094           TpChannel *channel;
1095
1096           if (properties != NULL)
1097             channel = tp_channel_new_from_properties (request_data->connection,
1098               object_path, properties, NULL);
1099           else
1100             channel = tp_channel_new (request_data->connection, object_path,
1101               request_data->channel_type, request_data->handle_type,
1102               request_data->handle, NULL);
1103
1104           g_signal_connect (channel, "invalidated",
1105             G_CALLBACK (dispatcher_channel_invalidated_cb),
1106             request_data->dispatcher);
1107
1108           priv->channels = g_list_prepend (priv->channels, channel);
1109
1110           operation = empathy_dispatch_operation_new (request_data->connection,
1111              channel, request_data->contact, FALSE);
1112           g_object_unref (channel);
1113         }
1114     }
1115   else
1116     {
1117       /* Already existed set potential extra information */
1118       g_object_set (G_OBJECT (operation),
1119         "contact", request_data->contact,
1120         NULL);
1121     }
1122
1123   request_data->operation = operation;
1124
1125   /* (pre)-approve this right away as we requested it
1126    * This might cause the channel to be claimed, in which case the operation
1127    * will disappear. So ref it, and check the status before starting the
1128    * dispatching */
1129
1130   g_object_ref (operation);
1131   empathy_dispatch_operation_approve (operation);
1132
1133    if (empathy_dispatch_operation_get_status (operation) <
1134      EMPATHY_DISPATCHER_OPERATION_STATE_APPROVING)
1135       dispatcher_start_dispatching (request_data->dispatcher, operation,
1136           conn_data);
1137
1138   g_object_unref (operation);
1139
1140 out:
1141   dispatcher_flush_outstanding_operations (request_data->dispatcher,
1142     conn_data);
1143 }
1144
1145 static void
1146 dispatcher_request_channel_cb (TpConnection *connection,
1147                                const gchar  *object_path,
1148                                const GError *error,
1149                                gpointer user_data,
1150                                GObject *weak_object)
1151 {
1152   EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (weak_object);
1153   DispatcherRequestData *request_data = (DispatcherRequestData*) user_data;
1154
1155   dispatcher_connection_new_requested_channel (dispatcher,
1156     request_data, object_path, NULL, error);
1157 }
1158
1159 static void
1160 dispatcher_request_channel (DispatcherRequestData *request_data)
1161 {
1162   tp_cli_connection_call_request_channel (request_data->connection, -1,
1163     request_data->channel_type,
1164     request_data->handle_type,
1165     request_data->handle,
1166     TRUE, dispatcher_request_channel_cb,
1167     request_data, NULL, G_OBJECT (request_data->dispatcher));
1168 }
1169
1170 void
1171 empathy_dispatcher_call_with_contact (EmpathyContact *contact,
1172                                       EmpathyDispatcherRequestCb *callback,
1173                                       gpointer user_data)
1174 {
1175   EmpathyDispatcher *dispatcher = empathy_dispatcher_dup_singleton();
1176   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1177   McAccount *account;
1178   TpConnection *connection;
1179   ConnectionData *cd;
1180   DispatcherRequestData *request_data;
1181
1182   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
1183
1184   account = empathy_contact_get_account (contact);
1185   connection = g_hash_table_lookup (priv->accounts, account);
1186
1187   g_assert (connection != NULL);
1188   cd = g_hash_table_lookup (priv->connections, connection);
1189   request_data  = new_dispatcher_request_data (dispatcher, connection,
1190     TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA, TP_HANDLE_TYPE_NONE, 0, NULL,
1191     contact, callback, user_data);
1192
1193   cd->outstanding_requests = g_list_prepend
1194     (cd->outstanding_requests, request_data);
1195
1196   dispatcher_request_channel (request_data);
1197
1198   g_object_unref (dispatcher);
1199 }
1200
1201 static void
1202 dispatcher_chat_with_contact_cb (EmpathyContact *contact,
1203                                  const GError *error,
1204                                  gpointer user_data,
1205                                  GObject *object)
1206 {
1207   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1208
1209   request_data->handle = empathy_contact_get_handle (contact);
1210
1211   dispatcher_request_channel (request_data);
1212 }
1213
1214 void
1215 empathy_dispatcher_chat_with_contact (EmpathyContact *contact,
1216                                       EmpathyDispatcherRequestCb *callback,
1217                                       gpointer user_data)
1218 {
1219   EmpathyDispatcher *dispatcher;
1220   EmpathyDispatcherPriv *priv;
1221   McAccount *account;
1222   TpConnection *connection;
1223   ConnectionData *connection_data;
1224   DispatcherRequestData *request_data;
1225
1226   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
1227
1228   dispatcher = empathy_dispatcher_dup_singleton();
1229   priv = GET_PRIV (dispatcher);
1230
1231   account = empathy_contact_get_account (contact);
1232   connection = g_hash_table_lookup (priv->accounts, account);
1233   connection_data = g_hash_table_lookup (priv->connections, connection);
1234
1235   /* The contact handle might not be known yet */
1236   request_data  = new_dispatcher_request_data (dispatcher, connection,
1237     TP_IFACE_CHANNEL_TYPE_TEXT, TP_HANDLE_TYPE_CONTACT, 0, NULL,
1238     contact, callback, user_data);
1239
1240   connection_data->outstanding_requests = g_list_prepend
1241     (connection_data->outstanding_requests, request_data);
1242
1243   empathy_contact_call_when_ready (contact,
1244     EMPATHY_CONTACT_READY_HANDLE, dispatcher_chat_with_contact_cb,
1245     request_data, NULL, G_OBJECT (dispatcher));
1246
1247   g_object_unref (dispatcher);
1248 }
1249
1250 void
1251 empathy_dispatcher_chat_with_contact_id (McAccount *account,
1252                                          const gchar *contact_id,
1253                                          EmpathyDispatcherRequestCb *callback,
1254                                          gpointer user_data)
1255 {
1256   EmpathyDispatcher *dispatcher = empathy_dispatcher_dup_singleton ();
1257   EmpathyContactFactory *factory;
1258   EmpathyContact        *contact;
1259
1260   g_return_if_fail (MC_IS_ACCOUNT (account));
1261   g_return_if_fail (!EMP_STR_EMPTY (contact_id));
1262
1263   factory = empathy_contact_factory_dup_singleton ();
1264   contact = empathy_contact_factory_get_from_id (factory, account, contact_id);
1265
1266   empathy_dispatcher_chat_with_contact (contact, callback, user_data);
1267
1268   g_object_unref (contact);
1269   g_object_unref (factory);
1270   g_object_unref (dispatcher);
1271 }
1272
1273 static void
1274 dispatcher_request_handles_cb (TpConnection *connection,
1275                                const GArray *handles,
1276                                const GError *error,
1277                                gpointer user_data,
1278                                GObject *object)
1279 {
1280   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1281
1282   if (error != NULL)
1283     {
1284       EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (object);
1285       EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1286       ConnectionData *cd;
1287
1288       cd = g_hash_table_lookup (priv->connections, request_data->connection);
1289
1290       if (request_data->cb)
1291         request_data->cb (NULL, error, request_data->user_data);
1292
1293       cd->outstanding_requests = g_list_remove (cd->outstanding_requests,
1294         request_data);
1295
1296       free_dispatcher_request_data (request_data);
1297
1298       dispatcher_flush_outstanding_operations (dispatcher, cd);
1299       return;
1300     }
1301
1302   request_data->handle = g_array_index (handles, guint, 0);
1303   dispatcher_request_channel (request_data);
1304 }
1305
1306 void
1307 empathy_dispatcher_join_muc (McAccount *account,
1308                              const gchar *roomname,
1309                              EmpathyDispatcherRequestCb *callback,
1310                              gpointer user_data)
1311 {
1312   EmpathyDispatcher *dispatcher;
1313   EmpathyDispatcherPriv *priv;
1314   DispatcherRequestData *request_data;
1315   TpConnection *connection;
1316   ConnectionData *connection_data;
1317   const gchar *names[] = { roomname, NULL };
1318
1319   g_return_if_fail (MC_IS_ACCOUNT (account));
1320   g_return_if_fail (!EMP_STR_EMPTY (roomname));
1321
1322   dispatcher = empathy_dispatcher_dup_singleton();
1323   priv = GET_PRIV (dispatcher);
1324
1325   connection = g_hash_table_lookup (priv->accounts, account);
1326   connection_data = g_hash_table_lookup (priv->connections, connection);
1327
1328
1329   /* Don't know the room handle yet */
1330   request_data  = new_dispatcher_request_data (dispatcher, connection,
1331     TP_IFACE_CHANNEL_TYPE_TEXT, TP_HANDLE_TYPE_ROOM, 0, NULL,
1332     NULL, callback, user_data);
1333
1334   connection_data->outstanding_requests = g_list_prepend
1335     (connection_data->outstanding_requests, request_data);
1336
1337   tp_cli_connection_call_request_handles (connection, -1,
1338     TP_HANDLE_TYPE_ROOM, names,
1339     dispatcher_request_handles_cb, request_data, NULL,
1340     G_OBJECT (dispatcher));
1341
1342   g_object_unref (dispatcher);
1343 }
1344
1345 static void
1346 dispatcher_create_channel_cb (TpConnection *connect,
1347                               const gchar *object_path,
1348                               GHashTable *properties,
1349                               const GError *error,
1350                               gpointer user_data,
1351                               GObject *weak_object)
1352 {
1353   EmpathyDispatcher *dispatcher = EMPATHY_DISPATCHER (weak_object);
1354   DispatcherRequestData *request_data = (DispatcherRequestData*) user_data;
1355
1356   dispatcher_connection_new_requested_channel (dispatcher,
1357     request_data, object_path, properties, error);
1358 }
1359
1360 void
1361 empathy_dispatcher_create_channel (EmpathyDispatcher *dispatcher,
1362                                    McAccount *account,
1363                                    GHashTable *request,
1364                                    EmpathyDispatcherRequestCb *callback,
1365                                    gpointer user_data)
1366 {
1367   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1368   ConnectionData *connection_data;
1369   DispatcherRequestData *request_data;
1370   const gchar *channel_type;
1371   guint handle_type;
1372   guint handle;
1373   gboolean valid;
1374   TpConnection *connection;
1375
1376   g_return_if_fail (EMPATHY_IS_DISPATCHER (dispatcher));
1377   g_return_if_fail (MC_IS_ACCOUNT (account));
1378   g_return_if_fail (request != NULL);
1379
1380   connection = g_hash_table_lookup (priv->accounts, account);
1381   g_assert (connection != NULL);
1382
1383   connection_data = g_hash_table_lookup (priv->connections, connection);
1384   g_assert (connection_data != NULL);
1385
1386   channel_type = tp_asv_get_string (request, TP_IFACE_CHANNEL ".ChannelType");
1387
1388   handle_type = tp_asv_get_uint32 (request,
1389     TP_IFACE_CHANNEL ".TargetHandleType", &valid);
1390   if (!valid)
1391     handle_type = TP_UNKNOWN_HANDLE_TYPE;
1392
1393   handle = tp_asv_get_uint32 (request, TP_IFACE_CHANNEL ".TargetHandle", NULL);
1394
1395   request_data  = new_dispatcher_request_data (dispatcher, connection,
1396     channel_type, handle_type, handle, request,
1397     NULL, callback, user_data);
1398
1399   connection_data->outstanding_requests = g_list_prepend
1400     (connection_data->outstanding_requests, request_data);
1401
1402   tp_cli_connection_interface_requests_call_create_channel (
1403     request_data->connection, -1,
1404     request_data->request, dispatcher_create_channel_cb, request_data, NULL,
1405     G_OBJECT (request_data->dispatcher));
1406 }
1407
1408 static void
1409 dispatcher_create_channel_with_contact_cb (EmpathyContact *contact,
1410                                            const GError *error,
1411                                            gpointer user_data,
1412                                            GObject *object)
1413 {
1414   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1415   GValue *target_handle;
1416
1417   g_assert (request_data->request);
1418
1419   if (error != NULL)
1420     {
1421       dispatcher_request_failed (request_data->dispatcher,
1422         request_data, error);
1423       return;
1424     }
1425
1426   request_data->handle = empathy_contact_get_handle (contact);
1427
1428   target_handle = tp_g_value_slice_new (G_TYPE_UINT);
1429   g_value_set_uint (target_handle, request_data->handle);
1430   g_hash_table_insert (request_data->request,
1431     TP_IFACE_CHANNEL ".TargetHandle", target_handle);
1432
1433   tp_cli_connection_interface_requests_call_create_channel (
1434     request_data->connection, -1,
1435     request_data->request, dispatcher_create_channel_cb, request_data, NULL,
1436     G_OBJECT (request_data->dispatcher));
1437 }
1438
1439 static void
1440 dispatcher_send_file_connection_ready_cb (TpConnection *connection,
1441                                           const GError *error,
1442                                           gpointer user_data)
1443 {
1444   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1445
1446   if (error !=  NULL)
1447     {
1448       dispatcher_request_failed (request_data->dispatcher,
1449           request_data, error);
1450       return;
1451     }
1452
1453   empathy_contact_call_when_ready (request_data->contact,
1454     EMPATHY_CONTACT_READY_HANDLE, dispatcher_create_channel_with_contact_cb,
1455     request_data, NULL, G_OBJECT (request_data->dispatcher));
1456 }
1457
1458 void
1459 empathy_dispatcher_send_file_to_contact (EmpathyContact *contact,
1460                                          const gchar *filename,
1461                                          guint64 size,
1462                                          guint64 date,
1463                                          const gchar *content_type,
1464                                          EmpathyDispatcherRequestCb *callback,
1465                                          gpointer user_data)
1466 {
1467   EmpathyDispatcher *dispatcher = empathy_dispatcher_dup_singleton();
1468   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1469   McAccount *account = empathy_contact_get_account (contact);
1470   TpConnection *connection = g_hash_table_lookup (priv->accounts, account);
1471   ConnectionData *connection_data =
1472     g_hash_table_lookup (priv->connections, connection);
1473   DispatcherRequestData *request_data;
1474   GValue *value;
1475   GHashTable *request = g_hash_table_new_full (g_str_hash, g_str_equal, NULL,
1476       (GDestroyNotify) tp_g_value_slice_free);
1477
1478   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
1479   g_return_if_fail (!EMP_STR_EMPTY (filename));
1480   g_return_if_fail (!EMP_STR_EMPTY (content_type));
1481
1482   /* org.freedesktop.Telepathy.Channel.ChannelType */
1483   value = tp_g_value_slice_new (G_TYPE_STRING);
1484   g_value_set_string (value, TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER);
1485   g_hash_table_insert (request, TP_IFACE_CHANNEL ".ChannelType", value);
1486
1487   /* org.freedesktop.Telepathy.Channel.TargetHandleType */
1488   value = tp_g_value_slice_new (G_TYPE_UINT);
1489   g_value_set_uint (value, TP_HANDLE_TYPE_CONTACT);
1490   g_hash_table_insert (request, TP_IFACE_CHANNEL ".TargetHandleType", value);
1491
1492   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer.ContentType */
1493   value = tp_g_value_slice_new (G_TYPE_STRING);
1494   g_value_set_string (value, content_type);
1495   g_hash_table_insert (request,
1496     TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER ".ContentType", value);
1497
1498   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer.Filename */
1499   value = tp_g_value_slice_new (G_TYPE_STRING);
1500   g_value_set_string (value, filename);
1501   g_hash_table_insert (request,
1502     TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER ".Filename", value);
1503
1504   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer.Size */
1505   value = tp_g_value_slice_new (G_TYPE_UINT64);
1506   g_value_set_uint64 (value, size);
1507   g_hash_table_insert (request,
1508     TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER ".Size", value);
1509
1510   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer.Date */
1511   value = tp_g_value_slice_new (G_TYPE_UINT64);
1512   g_value_set_uint64 (value, date);
1513   g_hash_table_insert (request,
1514     TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER ".Date", value);
1515
1516
1517   /* The contact handle might not be known yet */
1518   request_data  = new_dispatcher_request_data (dispatcher, connection,
1519     TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, TP_HANDLE_TYPE_CONTACT, 0, request,
1520     contact, callback, user_data);
1521   connection_data->outstanding_requests = g_list_prepend
1522     (connection_data->outstanding_requests, request_data);
1523
1524   tp_connection_call_when_ready (connection,
1525       dispatcher_send_file_connection_ready_cb, (gpointer) request_data);
1526
1527   g_object_unref (dispatcher);
1528 }
1529
1530 GStrv
1531 empathy_dispatcher_find_channel_class (EmpathyDispatcher *dispatcher,
1532                                        McAccount *account,
1533                                        const gchar *channel_type,
1534                                        guint handle_type)
1535 {
1536   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1537   ConnectionData *cd;
1538   TpConnection *connection;
1539   int i;
1540   GPtrArray *classes;
1541
1542   g_return_val_if_fail (channel_type != NULL, NULL);
1543   g_return_val_if_fail (handle_type != 0, NULL);
1544
1545   connection = g_hash_table_lookup (priv->accounts, account);
1546
1547   if (connection == NULL)
1548     return NULL;
1549
1550   cd = g_hash_table_lookup (priv->connections, connection);
1551
1552   if (cd == NULL)
1553     return NULL;
1554
1555
1556   classes = cd->requestable_channels;
1557   if (classes == NULL)
1558     return NULL;
1559
1560   for (i = 0; i < classes->len; i++)
1561     {
1562       GValueArray *class;
1563       GValue *fixed;
1564       GValue *allowed;
1565       GHashTable *fprops;
1566       const gchar *c_type;
1567       guint32 h_type;
1568       gboolean valid;
1569
1570       class = g_ptr_array_index (classes, i);
1571       fixed = g_value_array_get_nth (class, 0);
1572
1573       fprops = g_value_get_boxed (fixed);
1574       c_type = tp_asv_get_string (fprops, TP_IFACE_CHANNEL ".ChannelType");
1575
1576       if (tp_strdiff (channel_type, c_type))
1577         continue;
1578
1579       h_type = tp_asv_get_uint32 (fprops,
1580         TP_IFACE_CHANNEL ".TargetHandleType", &valid);
1581
1582       if (!valid || handle_type != h_type)
1583         continue;
1584
1585       allowed = g_value_array_get_nth (class, 1);
1586
1587       return g_value_get_boxed (allowed);
1588     }
1589
1590   return NULL;
1591 }
1592