libempathy/empathy-dispatcher.c

   1 /* * Copyright (C) 2007-2009 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  *          Sjoerd Simons <sjoerd.simons@collabora.co.uk>
  19  *          Cosimo Cecchi <cosimo.cecchi@collabora.co.uk>
  20  */
  21
  22 #define DISPATCHER_BUS_NAME TP_CLIENT_BUS_NAME_BASE "Empathy"
  23 #define DISPATCHER_OBJECT_PATH TP_CLIENT_OBJECT_PATH_BASE "Empathy"
  24
  25 #include <config.h>
  26
  27 #include <string.h>
  28
  29 #include <glib/gi18n-lib.h>
  30
  31 #include <telepathy-glib/account-manager.h>
  32 #include <telepathy-glib/enums.h>
  33 #include <telepathy-glib/connection.h>
  34 #include <telepathy-glib/channel-dispatcher.h>
  35 #include <telepathy-glib/channel-request.h>
  36 #include <telepathy-glib/util.h>
  37 #include <telepathy-glib/dbus.h>
  38 #include <telepathy-glib/proxy-subclass.h>
  39 #include <telepathy-glib/gtypes.h>
  40 #include <telepathy-glib/defs.h>
  41 #include <telepathy-glib/svc-client.h>
  42 #include <telepathy-glib/svc-generic.h>
  43 #include <telepathy-glib/interfaces.h>
  44
  45 #include <extensions/extensions.h>
  46
  47 #include "empathy-dispatcher.h"
  48 #include "empathy-handler.h"
  49 #include "empathy-utils.h"
  50 #include "empathy-tp-contact-factory.h"
  51 #include "empathy-chatroom-manager.h"
  52 #include "empathy-utils.h"
  53
  54 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  55 #include <libempathy/empathy-debug.h>
  56
  57 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyDispatcher)
  58 typedef struct
  59 {
  60   gboolean dispose_has_run;
  61
  62   TpAccountManager *account_manager;
  63   /* connection to connection data mapping */
  64   GHashTable *connections;
  65   GHashTable *outstanding_classes_requests;
  66   gpointer token;
  67
  68   /* channels which the dispatcher is listening "invalidated" */
  69   GList *channels;
  70   GPtrArray *array;
  71
  72   /* main handler */
  73   EmpathyHandler *handler;
  74
  75   /* extra handlers */
  76   GList *handlers;
  77
  78   GHashTable *request_channel_class_async_ids;
  79   /* (TpAccount *) => gulong
  80    * Signal handler ID of the "status-changed" signal */
  81   GHashTable *status_changed_handlers;
  82
  83   TpChannelDispatcher *channel_dispatcher;
  84   TpDBusDaemon *dbus;
  85 } EmpathyDispatcherPriv;
  86
  87 static GList *
  88 empathy_dispatcher_get_channels (EmpathyHandler *handler,
  89     gpointer user_data);
  90
  91 static gboolean
  92 empathy_dispatcher_handle_channels (EmpathyHandler *handler,
  93     const gchar *account_path,
  94     const gchar *connection_path,
  95     const GPtrArray *channels,
  96     const GPtrArray *requests_satisfied,
  97     guint64 timestamp,
  98     GHashTable *handler_info,
  99     gpointer user_data,
 100     GError **error);
 101
 102 G_DEFINE_TYPE (EmpathyDispatcher, empathy_dispatcher, G_TYPE_OBJECT);
 103
 104 enum
 105 {
 106   PROP_INTERFACES = 1,
 107   PROP_HANDLER,
 108 };
 109
 110 enum
 111 {
 112   OBSERVE,
 113   APPROVE,
 114   DISPATCH,
 115   LAST_SIGNAL
 116 };
 117
 118 static guint signals[LAST_SIGNAL];
 119 static EmpathyDispatcher *dispatcher = NULL;
 120
 121 static void dispatcher_init_connection_if_needed (
 122     EmpathyDispatcher *dispatcher,
 123     TpConnection *connection);
 124
 125 static GList * empathy_dispatcher_find_channel_classes
 126   (EmpathyDispatcher *dispatcher, TpConnection *connection,
 127    const gchar *channel_type, guint handle_type, GArray *fixed_properties);
 128
 129
 130 typedef struct
 131 {
 132   EmpathyDispatcher *dispatcher;
 133   EmpathyDispatchOperation *operation;
 134   TpConnection *connection;
 135   gboolean should_ensure;
 136   gchar *channel_type;
 137   guint handle_type;
 138   guint handle;
 139   EmpathyContact *contact;
 140   TpProxyPendingCall *pending_call;
 141
 142   /* Properties to pass to the channel when requesting it */
 143   GHashTable *request;
 144   EmpathyDispatcherRequestCb *cb;
 145   gpointer user_data;
 146   gpointer *request_data;
 147
 148   TpChannelRequest *channel_request;
 149 } DispatcherRequestData;
 150
 151 typedef struct
 152 {
 153   TpChannel *channel;
 154   /* Channel type specific wrapper object */
 155   GObject *channel_wrapper;
 156 } DispatchData;
 157
 158 typedef struct
 159 {
 160   /* ObjectPath => DispatchData.. */
 161   GHashTable *dispatched_channels;
 162   /* ObjectPath -> EmpathyDispatchOperations */
 163   GHashTable *dispatching_channels;
 164
 165   /* List of DispatcherRequestData */
 166   GList *outstanding_requests;
 167   /* List of requestable channel classes */
 168   GPtrArray *requestable_channels;
 169 } ConnectionData;
 170
 171 typedef struct
 172 {
 173   EmpathyDispatcher *dispatcher;
 174   TpConnection *connection;
 175   char *channel_type;
 176   guint handle_type;
 177   GArray *properties;
 178   EmpathyDispatcherFindChannelClassCb *callback;
 179   gpointer user_data;
 180 } FindChannelRequest;
 181
 182 static void
 183 empathy_dispatcher_call_create_or_ensure_channel (
 184     EmpathyDispatcher *dispatcher,
 185     DispatcherRequestData *request_data);
 186
 187 static void
 188 dispatcher_request_failed (EmpathyDispatcher *dispatcher,
 189     DispatcherRequestData *request_data,
 190     const GError *error);
 191
 192 static DispatchData *
 193 new_dispatch_data (TpChannel *channel,
 194                    GObject *channel_wrapper)
 195 {
 196   DispatchData *d = g_slice_new0 (DispatchData);
 197   d->channel = g_object_ref (channel);
 198   if (channel_wrapper != NULL)
 199     d->channel_wrapper = g_object_ref (channel_wrapper);
 200
 201   return d;
 202 }
 203
 204 static void
 205 free_dispatch_data (DispatchData *data)
 206 {
 207   g_object_unref (data->channel);
 208   if (data->channel_wrapper != NULL)
 209     g_object_unref (data->channel_wrapper);
 210
 211   g_slice_free (DispatchData, data);
 212 }
 213
 214 static DispatcherRequestData *
 215 new_dispatcher_request_data (EmpathyDispatcher *self,
 216                              TpConnection *connection,
 217                              const gchar *channel_type,
 218                              guint handle_type,
 219                              guint handle,
 220                              GHashTable *request,
 221                              EmpathyContact *contact,
 222                              EmpathyDispatcherRequestCb *cb,
 223                              gpointer user_data)
 224 {
 225   DispatcherRequestData *result = g_slice_new0 (DispatcherRequestData);
 226
 227   result->dispatcher = g_object_ref (self);
 228   result->connection = connection;
 229
 230   result->should_ensure = FALSE;
 231
 232   result->channel_type = g_strdup (channel_type);
 233   result->handle_type = handle_type;
 234   result->handle = handle;
 235   result->request = request;
 236
 237   if (contact != NULL)
 238     result->contact = g_object_ref (contact);
 239
 240   result->cb = cb;
 241   result->user_data = user_data;
 242
 243   return result;
 244 }
 245
 246 static void
 247 free_dispatcher_request_data (DispatcherRequestData *r)
 248 {
 249   g_free (r->channel_type);
 250
 251   if (r->dispatcher != NULL)
 252     g_object_unref (r->dispatcher);
 253
 254   if (r->contact != NULL)
 255     g_object_unref (r->contact);
 256
 257   if (r->request != NULL)
 258     g_hash_table_unref (r->request);
 259
 260
 261   if (r->pending_call != NULL)
 262     tp_proxy_pending_call_cancel (r->pending_call);
 263
 264   if (r->channel_request != NULL)
 265     g_object_unref (r->channel_request);
 266
 267   g_slice_free (DispatcherRequestData, r);
 268 }
 269
 270 static ConnectionData *
 271 new_connection_data (void)
 272 {
 273   ConnectionData *cd = g_slice_new0 (ConnectionData);
 274
 275   cd->dispatched_channels = g_hash_table_new_full (g_str_hash, g_str_equal,
 276       g_free, (GDestroyNotify) free_dispatch_data);
 277
 278   cd->dispatching_channels = g_hash_table_new_full (g_str_hash, g_str_equal,
 279       g_free, g_object_unref);
 280
 281   return cd;
 282 }
 283
 284 static void
 285 free_connection_data (ConnectionData *cd)
 286 {
 287   GList *l;
 288   guint i;
 289
 290   g_hash_table_destroy (cd->dispatched_channels);
 291   g_hash_table_destroy (cd->dispatching_channels);
 292
 293   for (l = cd->outstanding_requests ; l != NULL; l = g_list_delete_link (l,l))
 294     {
 295       free_dispatcher_request_data (l->data);
 296     }
 297
 298   if (cd->requestable_channels  != NULL)
 299     {
 300       for (i = 0 ; i < cd->requestable_channels->len ; i++)
 301           g_value_array_free (
 302             g_ptr_array_index (cd->requestable_channels, i));
 303       g_ptr_array_free (cd->requestable_channels, TRUE);
 304     }
 305 }
 306
 307 static void
 308 free_find_channel_request (FindChannelRequest *r)
 309 {
 310   guint idx;
 311   char *str;
 312
 313   g_object_unref (r->dispatcher);
 314   g_free (r->channel_type);
 315
 316   if (r->properties != NULL)
 317     {
 318       for (idx = 0; idx < r->properties->len ; idx++)
 319         {
 320           str = g_array_index (r->properties, char *, idx);
 321           g_free (str);
 322         }
 323
 324       g_array_free (r->properties, TRUE);
 325     }
 326
 327   g_slice_free (FindChannelRequest, r);
 328 }
 329
 330 static void
 331 dispatcher_connection_invalidated_cb (TpConnection *connection,
 332                                       guint domain,
 333                                       gint code,
 334                                       gchar *message,
 335                                       EmpathyDispatcher *self)
 336 {
 337   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 338
 339   DEBUG ("Error: %s", message);
 340   g_hash_table_remove (priv->connections, connection);
 341 }
 342
 343 static void
 344 dispatch_operation_flush_requests (EmpathyDispatcher *self,
 345                                    EmpathyDispatchOperation *operation,
 346                                    GError *error,
 347                                    ConnectionData *cd)
 348 {
 349   GList *l;
 350
 351   l = cd->outstanding_requests;
 352   while (l != NULL)
 353     {
 354       DispatcherRequestData *d = (DispatcherRequestData *) l->data;
 355       GList *lt = l;
 356
 357       l = g_list_next (l);
 358
 359       if (d->operation == operation)
 360         {
 361           if (d->cb != NULL)
 362             {
 363               if (error != NULL)
 364                 d->cb (NULL, error, d->user_data);
 365               else
 366                 d->cb (operation, NULL, d->user_data);
 367             }
 368
 369           cd->outstanding_requests = g_list_delete_link
 370             (cd->outstanding_requests, lt);
 371
 372           free_dispatcher_request_data (d);
 373         }
 374     }
 375 }
 376
 377 static void
 378 dispatcher_channel_invalidated_cb (TpProxy *proxy,
 379                                    guint domain,
 380                                    gint code,
 381                                    gchar *message,
 382                                    EmpathyDispatcher *self)
 383 {
 384   /* Channel went away... */
 385   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 386   TpConnection *connection;
 387   ConnectionData *cd;
 388   const gchar *object_path;
 389
 390   connection = tp_channel_borrow_connection (TP_CHANNEL (proxy));
 391
 392   cd = g_hash_table_lookup (priv->connections, connection);
 393   /* Connection itself invalidated? */
 394   if (cd == NULL)
 395     return;
 396
 397   object_path = tp_proxy_get_object_path (proxy);
 398
 399   DEBUG ("Channel %s invalidated", object_path);
 400
 401   g_hash_table_remove (cd->dispatched_channels, object_path);
 402   g_hash_table_remove (cd->dispatching_channels, object_path);
 403
 404   priv->channels = g_list_remove (priv->channels, proxy);
 405 }
 406
 407 static void
 408 dispatch_operation_approved_cb (EmpathyDispatchOperation *operation,
 409                                 EmpathyDispatcher *self)
 410 {
 411   g_assert (empathy_dispatch_operation_is_incoming (operation));
 412   DEBUG ("Send of for dispatching: %s",
 413     empathy_dispatch_operation_get_object_path (operation));
 414   g_signal_emit (self, signals[DISPATCH], 0, operation);
 415 }
 416
 417 static void
 418 dispatch_operation_claimed_cb (EmpathyDispatchOperation *operation,
 419                                EmpathyDispatcher *self)
 420 {
 421   /* Our job is done, remove the dispatch operation and mark the channel as
 422    * dispatched */
 423   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 424   TpConnection *connection;
 425   ConnectionData *cd;
 426   const gchar *object_path;
 427
 428   connection = empathy_dispatch_operation_get_tp_connection (operation);
 429   cd = g_hash_table_lookup (priv->connections, connection);
 430   g_assert (cd != NULL);
 431
 432   object_path = empathy_dispatch_operation_get_object_path (operation);
 433
 434   if (g_hash_table_lookup (cd->dispatched_channels, object_path) == NULL)
 435     {
 436       DispatchData *d;
 437       d = new_dispatch_data (
 438         empathy_dispatch_operation_get_channel (operation),
 439         empathy_dispatch_operation_get_channel_wrapper (operation));
 440       g_hash_table_insert (cd->dispatched_channels,
 441         g_strdup (object_path), d);
 442     }
 443   g_hash_table_remove (cd->dispatching_channels, object_path);
 444
 445   DEBUG ("Channel claimed: %s", object_path);
 446 }
 447
 448 static void
 449 dispatch_operation_ready_cb (EmpathyDispatchOperation *operation,
 450                              EmpathyDispatcher *self)
 451 {
 452   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 453   TpConnection *connection;
 454   ConnectionData *cd;
 455   EmpathyDispatchOperationState status;
 456
 457   g_signal_connect (operation, "approved",
 458     G_CALLBACK (dispatch_operation_approved_cb), self);
 459
 460   g_signal_connect (operation, "claimed",
 461     G_CALLBACK (dispatch_operation_claimed_cb), self);
 462
 463   /* Signal the observers */
 464   DEBUG ("Send to observers: %s",
 465     empathy_dispatch_operation_get_object_path (operation));
 466   g_signal_emit (self, signals[OBSERVE], 0, operation);
 467
 468   empathy_dispatch_operation_start (operation);
 469
 470   /* Signal potential requestors */
 471   connection =  empathy_dispatch_operation_get_tp_connection (operation);
 472   cd = g_hash_table_lookup (priv->connections, connection);
 473   g_assert (cd != NULL);
 474
 475   g_object_ref (operation);
 476   g_object_ref (self);
 477
 478   dispatch_operation_flush_requests (self, operation, NULL, cd);
 479   status = empathy_dispatch_operation_get_status (operation);
 480   g_object_unref (operation);
 481
 482   if (status == EMPATHY_DISPATCHER_OPERATION_STATE_CLAIMED)
 483     return;
 484
 485   if (status == EMPATHY_DISPATCHER_OPERATION_STATE_APPROVING)
 486     {
 487       DEBUG ("Send to approvers: %s",
 488         empathy_dispatch_operation_get_object_path (operation));
 489       g_signal_emit (self, signals[APPROVE], 0, operation);
 490     }
 491   else
 492     {
 493       g_assert (status == EMPATHY_DISPATCHER_OPERATION_STATE_DISPATCHING);
 494       DEBUG ("Send of for dispatching: %s",
 495         empathy_dispatch_operation_get_object_path (operation));
 496       g_signal_emit (self, signals[DISPATCH], 0, operation);
 497     }
 498
 499   g_object_unref (self);
 500 }
 501
 502 static void
 503 dispatcher_start_dispatching (EmpathyDispatcher *self,
 504                               EmpathyDispatchOperation *operation,
 505                               ConnectionData *cd)
 506 {
 507   const gchar *object_path =
 508     empathy_dispatch_operation_get_object_path (operation);
 509
 510   DEBUG ("Dispatching process started for %s", object_path);
 511
 512   if (g_hash_table_lookup (cd->dispatching_channels, object_path) == NULL)
 513     {
 514       g_hash_table_insert (cd->dispatching_channels,
 515         g_strdup (object_path), operation);
 516
 517       switch (empathy_dispatch_operation_get_status (operation))
 518         {
 519           case EMPATHY_DISPATCHER_OPERATION_STATE_PREPARING:
 520             g_signal_connect (operation, "ready",
 521               G_CALLBACK (dispatch_operation_ready_cb), self);
 522             break;
 523           case EMPATHY_DISPATCHER_OPERATION_STATE_PENDING:
 524             dispatch_operation_ready_cb (operation, self);
 525             break;
 526           default:
 527             g_assert_not_reached ();
 528         }
 529
 530     }
 531   else if (empathy_dispatch_operation_get_status (operation) >=
 532       EMPATHY_DISPATCHER_OPERATION_STATE_PENDING)
 533     {
 534       /* Already dispatching and the operation is pending, thus the observers
 535        * have seen it (if applicable), so we can flush the request right away.
 536        */
 537       dispatch_operation_flush_requests (self, operation, NULL, cd);
 538     }
 539 }
 540
 541 static void
 542 dispatcher_connection_new_channel (EmpathyDispatcher *self,
 543                                    TpConnection *connection,
 544                                    const gchar *object_path,
 545                                    const gchar *channel_type,
 546                                    guint handle_type,
 547                                    guint handle,
 548                                    GHashTable *properties,
 549                                    gboolean incoming,
 550                                    const GPtrArray *requests_satisfied)
 551 {
 552   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 553   TpChannel         *channel;
 554   ConnectionData *cd;
 555   EmpathyDispatchOperation *operation;
 556   int i;
 557   /* Channel types we never want to dispatch because they're either deprecated
 558    * or can't sensibly be dispatch (e.g. channels that should always be
 559    * requested) */
 560   const char *blacklist[] = {
 561     TP_IFACE_CHANNEL_TYPE_CONTACT_LIST,
 562     TP_IFACE_CHANNEL_TYPE_TUBES,
 563     TP_IFACE_CHANNEL_TYPE_ROOM_LIST,
 564     NULL
 565   };
 566
 567   dispatcher_init_connection_if_needed (self, connection);
 568
 569   cd = g_hash_table_lookup (priv->connections, connection);
 570
 571   for (i = 0 ; blacklist[i] != NULL; i++)
 572     {
 573       if (!tp_strdiff (channel_type, blacklist[i]))
 574         {
 575           DEBUG ("Ignoring blacklisted channel type %s on %s",
 576             channel_type, object_path);
 577           return;
 578         }
 579     }
 580
 581   DEBUG ("%s channel of type %s on %s", incoming ? "incoming" : "outgoing",
 582     channel_type, object_path);
 583
 584   if ((operation = g_hash_table_lookup (cd->dispatching_channels,
 585       object_path)) != NULL)
 586     {
 587       /* This operation was already being dispatched, assume we got the channel
 588        * again because something asked for it and approve it right away */
 589       empathy_dispatch_operation_approve (operation);
 590       return;
 591     }
 592
 593   if (properties == NULL)
 594     channel = tp_channel_new (connection, object_path, channel_type,
 595       handle_type, handle, NULL);
 596   else
 597     channel = tp_channel_new_from_properties (connection, object_path,
 598       properties, NULL);
 599
 600   g_signal_connect (channel, "invalidated",
 601     G_CALLBACK (dispatcher_channel_invalidated_cb),
 602     self);
 603
 604   priv->channels = g_list_prepend (priv->channels, channel);
 605
 606   operation = empathy_dispatch_operation_new (connection, channel, NULL,
 607     incoming);
 608
 609   g_object_unref (channel);
 610
 611   if (!incoming && requests_satisfied != NULL)
 612     {
 613       GList *l;
 614       gboolean found = FALSE;
 615
 616       l = cd->outstanding_requests;
 617
 618       while (l != NULL)
 619         {
 620           DispatcherRequestData *d = (DispatcherRequestData *) l->data;
 621           guint n;
 622           const gchar *path;
 623
 624           l = g_list_next (l);
 625           if (d->request == NULL)
 626             continue;
 627
 628           if (d->operation != NULL)
 629             continue;
 630
 631           path = tp_proxy_get_object_path (d->channel_request);
 632           for (n = 0; n < requests_satisfied->len ; n++)
 633             {
 634               const gchar *p = g_ptr_array_index (requests_satisfied, n);
 635               if (!tp_strdiff (p, path))
 636                 {
 637                   DEBUG ("Channel satified request %s"
 638                    "(already dispatched: %d)", p, found);
 639                   if (!found)
 640                     {
 641                       d->operation = operation;
 642                       found = TRUE;
 643                       continue;
 644                     }
 645                   else
 646                     {
 647                       GError err = { TP_ERRORS, TP_ERROR_NOT_YOURS,
 648                         "Not yours!" };
 649                       dispatcher_request_failed (dispatcher, d, &err);
 650                     }
 651                 }
 652             }
 653         }
 654     }
 655
 656   if (g_hash_table_lookup (cd->dispatched_channels, object_path) != NULL)
 657     empathy_dispatch_operation_approve (operation);
 658
 659   dispatcher_start_dispatching (dispatcher, operation, cd);
 660 }
 661
 662 static void
 663 dispatcher_connection_new_channel_with_properties (
 664     EmpathyDispatcher *self,
 665     TpConnection *connection,
 666     const gchar *object_path,
 667     GHashTable *properties,
 668     const GPtrArray *requests_satisfied)
 669 {
 670   const gchar *channel_type;
 671   guint handle_type;
 672   guint handle;
 673   gboolean requested;
 674   gboolean valid;
 675
 676   channel_type = tp_asv_get_string (properties,
 677     TP_IFACE_CHANNEL ".ChannelType");
 678   if (channel_type == NULL)
 679     {
 680       g_message ("%s had an invalid ChannelType property", object_path);
 681       return;
 682     }
 683
 684   handle_type = tp_asv_get_uint32 (properties,
 685     TP_IFACE_CHANNEL ".TargetHandleType", &valid);
 686   if (!valid)
 687     {
 688       g_message ("%s had an invalid TargetHandleType property", object_path);
 689       return;
 690     }
 691
 692   handle = tp_asv_get_uint32 (properties,
 693     TP_IFACE_CHANNEL ".TargetHandle", &valid);
 694   if (!valid)
 695     {
 696       g_message ("%s had an invalid TargetHandle property", object_path);
 697       return;
 698     }
 699
 700   /* We assume there is no channel dispather, so we're the only one dispatching
 701    * it. Which means that a requested channel it is outgoing one */
 702   requested = tp_asv_get_boolean (properties,
 703     TP_IFACE_CHANNEL ".Requested", &valid);
 704   if (!valid)
 705     {
 706       g_message ("%s had an invalid Requested property", object_path);
 707       requested = FALSE;
 708     }
 709
 710   dispatcher_connection_new_channel (self, connection,
 711     object_path, channel_type, handle_type, handle, properties, !requested,
 712     requests_satisfied);
 713 }
 714
 715 static void
 716 dispatcher_connection_got_all (TpProxy *proxy,
 717                                GHashTable *properties,
 718                                const GError *error,
 719                                gpointer user_data,
 720                                GObject *object)
 721 {
 722   EmpathyDispatcher *self = EMPATHY_DISPATCHER (object);
 723   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 724   GPtrArray *requestable_channels;
 725
 726   if (error) {
 727     DEBUG ("Error: %s", error->message);
 728     return;
 729   }
 730
 731   requestable_channels = tp_asv_get_boxed (properties,
 732     "RequestableChannelClasses", TP_ARRAY_TYPE_REQUESTABLE_CHANNEL_CLASS_LIST);
 733
 734   if (requestable_channels == NULL)
 735     DEBUG ("No RequestableChannelClasses property !?! on connection");
 736   else
 737     {
 738       ConnectionData *cd;
 739       GList *requests, *l;
 740       FindChannelRequest *request;
 741       GList *retval;
 742
 743       cd = g_hash_table_lookup (priv->connections, proxy);
 744       g_assert (cd != NULL);
 745
 746       cd->requestable_channels = g_boxed_copy (
 747         TP_ARRAY_TYPE_REQUESTABLE_CHANNEL_CLASS_LIST, requestable_channels);
 748
 749       requests = g_hash_table_lookup (priv->outstanding_classes_requests,
 750           proxy);
 751
 752       for (l = requests; l != NULL; l = l->next)
 753         {
 754           request = l->data;
 755
 756           retval = empathy_dispatcher_find_channel_classes (self,
 757               TP_CONNECTION (proxy), request->channel_type,
 758               request->handle_type, request->properties);
 759           request->callback (retval, request->user_data);
 760
 761           free_find_channel_request (request);
 762           g_list_free (retval);
 763         }
 764
 765       g_list_free (requests);
 766
 767       g_hash_table_remove (priv->outstanding_classes_requests, proxy);
 768     }
 769 }
 770
 771 static void
 772 dispatcher_connection_advertise_capabilities_cb (TpConnection    *connection,
 773                                                  const GPtrArray *capabilities,
 774                                                  const GError    *error,
 775                                                  gpointer         user_data,
 776                                                  GObject         *self)
 777 {
 778   if (error)
 779     DEBUG ("Error: %s", error->message);
 780 }
 781
 782 static void
 783 connection_ready_cb (TpConnection *connection,
 784     const GError *error,
 785     gpointer user_data)
 786 {
 787   EmpathyDispatcher *self = EMPATHY_DISPATCHER (user_data);
 788   GPtrArray   *capabilities;
 789   GType        cap_type;
 790   GValue       cap = {0, };
 791   const gchar *remove_ = NULL;
 792
 793   if (error != NULL)
 794     {
 795       DEBUG ("Error: %s", error->message);
 796       goto out;
 797     }
 798
 799   if (tp_proxy_has_interface_by_id (TP_PROXY (connection),
 800       TP_IFACE_QUARK_CONNECTION_INTERFACE_REQUESTS))
 801     {
 802       tp_cli_dbus_properties_call_get_all (connection, -1,
 803         TP_IFACE_CONNECTION_INTERFACE_REQUESTS,
 804         dispatcher_connection_got_all,
 805         NULL, NULL, G_OBJECT (self));
 806     }
 807
 808   /* Advertise VoIP capabilities */
 809   capabilities = g_ptr_array_sized_new (1);
 810   cap_type = dbus_g_type_get_struct ("GValueArray", G_TYPE_STRING,
 811     G_TYPE_UINT, G_TYPE_INVALID);
 812   g_value_init (&cap, cap_type);
 813   g_value_take_boxed (&cap, dbus_g_type_specialized_construct (cap_type));
 814   dbus_g_type_struct_set (&cap,
 815         0, TP_IFACE_CHANNEL_TYPE_STREAMED_MEDIA,
 816         1, TP_CHANNEL_MEDIA_CAPABILITY_AUDIO |
 817            TP_CHANNEL_MEDIA_CAPABILITY_VIDEO |
 818            TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_STUN  |
 819            TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_GTALK_P2P |
 820            TP_CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_ICE_UDP,
 821            G_MAXUINT);
 822   g_ptr_array_add (capabilities, g_value_get_boxed (&cap));
 823
 824   tp_cli_connection_interface_capabilities_call_advertise_capabilities (
 825     connection, -1, capabilities, &remove_,
 826     dispatcher_connection_advertise_capabilities_cb,
 827     NULL, NULL, G_OBJECT (self));
 828
 829   g_value_unset (&cap);
 830   g_ptr_array_free (capabilities, TRUE);
 831 out:
 832   g_object_unref (self);
 833 }
 834
 835 static void
 836 dispatcher_init_connection_if_needed (EmpathyDispatcher *self,
 837     TpConnection *connection)
 838 {
 839   EmpathyDispatcherPriv *priv = GET_PRIV (self);
 840
 841   if (g_hash_table_lookup (priv->connections, connection) != NULL)
 842     return;
 843
 844   g_hash_table_insert (priv->connections, g_object_ref (connection),
 845     new_connection_data ());
 846
 847   g_signal_connect (connection, "invalidated",
 848     G_CALLBACK (dispatcher_connection_invalidated_cb), self);
 849
 850   /* Ensure to keep the self object alive while the call_when_ready is
 851    * running */
 852   g_object_ref (self);
 853   tp_connection_call_when_ready (connection, connection_ready_cb, self);
 854 }
 855
 856 static void
 857 dispatcher_status_changed_cb (TpAccount *account,
 858                               guint old_status,
 859                               guint new_status,
 860                               guint reason,
 861                               gchar *dbus_error_name,
 862                               GHashTable *details,
 863                               EmpathyDispatcher *self)
 864 {
 865   TpConnection *conn = tp_account_get_connection (account);
 866
 867   if (conn != NULL)
 868     dispatcher_init_connection_if_needed (self, conn);
 869 }
 870
 871 static void
 872 remove_idle_handlers (gpointer key,
 873                       gpointer value,
 874                       gpointer user_data)
 875 {
 876   guint source_id;
 877
 878   source_id = GPOINTER_TO_UINT (value);
 879   g_source_remove (source_id);
 880 }
 881
 882 static GObject *
 883 dispatcher_constructor (GType type,
 884                         guint n_construct_params,
 885                         GObjectConstructParam *construct_params)
 886 {
 887   GObject *retval;
 888   EmpathyDispatcherPriv *priv;
 889
 890   if (dispatcher != NULL)
 891     return g_object_ref (dispatcher);
 892
 893   retval = G_OBJECT_CLASS (empathy_dispatcher_parent_class)->constructor
 894     (type, n_construct_params, construct_params);
 895
 896   dispatcher = EMPATHY_DISPATCHER (retval);
 897   g_object_add_weak_pointer (retval, (gpointer) &dispatcher);
 898
 899   priv = GET_PRIV (dispatcher);
 900
 901   if (priv->handler == NULL)
 902     priv->handler = empathy_handler_new (NULL, NULL, NULL);
 903
 904   empathy_handler_set_handle_channels_func (priv->handler,
 905     empathy_dispatcher_handle_channels,
 906     dispatcher);
 907
 908   empathy_handler_set_channels_func (priv->handler,
 909     empathy_dispatcher_get_channels,
 910     dispatcher);
 911
 912   return retval;
 913 }
 914
 915 static void
 916 dispatcher_dispose (GObject *object)
 917 {
 918   EmpathyDispatcherPriv *priv = GET_PRIV (object);
 919   GHashTableIter iter;
 920   gpointer connection;
 921   GList *l;
 922
 923   if (priv->dispose_has_run)
 924     return;
 925
 926   priv->dispose_has_run = TRUE;
 927
 928   for (l = priv->handlers ; l != NULL; l = g_list_next (l))
 929     g_object_unref (G_OBJECT (l->data));
 930
 931   g_list_free (priv->handlers);
 932   priv->handlers = NULL;
 933
 934   if (priv->handler != NULL)
 935     g_object_unref (priv->handler);
 936   priv->handler = NULL;
 937
 938   g_hash_table_iter_init (&iter, priv->connections);
 939   while (g_hash_table_iter_next (&iter, &connection, NULL))
 940     {
 941       g_signal_handlers_disconnect_by_func (connection,
 942           dispatcher_connection_invalidated_cb, object);
 943     }
 944
 945   g_hash_table_destroy (priv->connections);
 946   priv->connections = NULL;
 947
 948   if (priv->channel_dispatcher != NULL)
 949     g_object_unref (priv->channel_dispatcher);
 950   priv->channel_dispatcher = NULL;
 951
 952   if (priv->dbus != NULL)
 953     g_object_unref (priv->dbus);
 954   priv->dbus = NULL;
 955
 956   G_OBJECT_CLASS (empathy_dispatcher_parent_class)->dispose (object);
 957 }
 958
 959 static void
 960 dispatcher_finalize (GObject *object)
 961 {
 962   EmpathyDispatcherPriv *priv = GET_PRIV (object);
 963   GList *l;
 964   GHashTableIter iter;
 965   gpointer connection;
 966   GList *list;
 967   gpointer account, id;
 968
 969   if (priv->request_channel_class_async_ids != NULL)
 970     {
 971       g_hash_table_foreach (priv->request_channel_class_async_ids,
 972         remove_idle_handlers, NULL);
 973       g_hash_table_destroy (priv->request_channel_class_async_ids);
 974     }
 975
 976   for (l = priv->channels; l; l = l->next)
 977     {
 978       g_signal_handlers_disconnect_by_func (l->data,
 979           dispatcher_channel_invalidated_cb, object);
 980     }
 981
 982   g_list_free (priv->channels);
 983
 984   g_hash_table_iter_init (&iter, priv->outstanding_classes_requests);
 985   while (g_hash_table_iter_next (&iter, &connection, (gpointer *) &list))
 986     {
 987       g_list_foreach (list, (GFunc) free_find_channel_request, NULL);
 988       g_list_free (list);
 989     }
 990
 991   g_hash_table_iter_init (&iter, priv->status_changed_handlers);
 992   while (g_hash_table_iter_next (&iter, &account, &id))
 993     {
 994       g_signal_handler_disconnect (account, GPOINTER_TO_UINT (id));
 995     }
 996   g_hash_table_destroy (priv->status_changed_handlers);
 997
 998   g_object_unref (priv->account_manager);
 999
1000   g_hash_table_destroy (priv->outstanding_classes_requests);
1001 }
1002
1003 static void
1004 dispatcher_set_property (GObject *object,
1005   guint property_id,
1006   const GValue *value,
1007   GParamSpec *pspec)
1008 {
1009   EmpathyDispatcher *self = EMPATHY_DISPATCHER (object);
1010   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1011
1012   switch (property_id)
1013     {
1014       case PROP_HANDLER:
1015         priv->handler = g_value_dup_object (value);
1016         break;
1017       default:
1018         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
1019         break;
1020     }
1021 }
1022
1023 static void
1024 dispatcher_get_property (GObject *object,
1025   guint property_id,
1026   GValue *value,
1027   GParamSpec *pspec)
1028 {
1029   EmpathyDispatcher *self = EMPATHY_DISPATCHER (object);
1030   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1031
1032   switch (property_id)
1033     {
1034       case PROP_HANDLER:
1035         g_value_set_object (value, priv->handler);
1036         break;
1037       default:
1038         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
1039         break;
1040     }
1041 }
1042
1043 static void
1044 empathy_dispatcher_class_init (EmpathyDispatcherClass *klass)
1045 {
1046   GObjectClass *object_class = G_OBJECT_CLASS (klass);
1047   GParamSpec *param_spec;
1048
1049   object_class->dispose = dispatcher_dispose;
1050   object_class->finalize = dispatcher_finalize;
1051   object_class->constructor = dispatcher_constructor;
1052
1053   object_class->get_property = dispatcher_get_property;
1054   object_class->set_property = dispatcher_set_property;
1055
1056   param_spec = g_param_spec_object ("handler", "handler",
1057     "The main Telepathy Client Hander object",
1058     EMPATHY_TYPE_HANDLER,
1059     G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY);
1060   g_object_class_install_property (object_class,
1061     PROP_HANDLER, param_spec);
1062
1063   signals[OBSERVE] =
1064     g_signal_new ("observe",
1065       G_TYPE_FROM_CLASS (klass),
1066       G_SIGNAL_RUN_LAST,
1067       0,
1068       NULL, NULL,
1069       g_cclosure_marshal_VOID__OBJECT,
1070       G_TYPE_NONE,
1071       1, EMPATHY_TYPE_DISPATCH_OPERATION);
1072
1073   signals[APPROVE] =
1074     g_signal_new ("approve",
1075       G_TYPE_FROM_CLASS (klass),
1076       G_SIGNAL_RUN_LAST,
1077       0,
1078       NULL, NULL,
1079       g_cclosure_marshal_VOID__OBJECT,
1080       G_TYPE_NONE,
1081       1, EMPATHY_TYPE_DISPATCH_OPERATION);
1082
1083   signals[DISPATCH] =
1084     g_signal_new ("dispatch",
1085       G_TYPE_FROM_CLASS (klass),
1086       G_SIGNAL_RUN_LAST,
1087       0,
1088       NULL, NULL,
1089       g_cclosure_marshal_VOID__OBJECT,
1090       G_TYPE_NONE,
1091       1, EMPATHY_TYPE_DISPATCH_OPERATION);
1092
1093
1094   g_type_class_add_private (object_class, sizeof (EmpathyDispatcherPriv));
1095 }
1096
1097 static void
1098 connect_account (EmpathyDispatcher *self,
1099     TpAccount *account)
1100 {
1101   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1102   TpConnection *conn = tp_account_get_connection (account);
1103   gulong id;
1104
1105   id = GPOINTER_TO_UINT (g_hash_table_lookup (priv->status_changed_handlers,
1106         account));
1107
1108   if (id != 0)
1109     return;
1110
1111   if (conn != NULL)
1112     dispatcher_status_changed_cb (account, 0, 0, 0, NULL, NULL, self);
1113
1114   id = g_signal_connect (account, "status-changed",
1115       G_CALLBACK (dispatcher_status_changed_cb), self);
1116
1117   g_hash_table_insert (priv->status_changed_handlers, account,
1118       GUINT_TO_POINTER (id));
1119 }
1120
1121 static void
1122 account_manager_prepared_cb (GObject *source_object,
1123                              GAsyncResult *result,
1124                              gpointer user_data)
1125 {
1126   GList *accounts, *l;
1127   EmpathyDispatcher *self = user_data;
1128   TpAccountManager *account_manager = TP_ACCOUNT_MANAGER (source_object);
1129   GError *error = NULL;
1130
1131   if (!tp_account_manager_prepare_finish (account_manager, result, &error))
1132     {
1133       DEBUG ("Failed to prepare account manager: %s", error->message);
1134       g_error_free (error);
1135       return;
1136     }
1137
1138   accounts = tp_account_manager_get_valid_accounts (account_manager);
1139   for (l = accounts; l; l = l->next)
1140     {
1141       TpAccount *a = l->data;
1142
1143       connect_account (self, a);
1144     }
1145   g_list_free (accounts);
1146 }
1147
1148 static void
1149 account_prepare_cb (GObject *source_object,
1150     GAsyncResult *result,
1151     gpointer user_data)
1152 {
1153   EmpathyDispatcher *self = user_data;
1154   TpAccount *account = TP_ACCOUNT (source_object);
1155   GError *error = NULL;
1156
1157   if (!tp_account_prepare_finish (account, result, &error))
1158     {
1159       DEBUG ("Failed to prepare account: %s", error->message);
1160       g_error_free (error);
1161       return;
1162     }
1163
1164   connect_account (self, account);
1165 }
1166
1167 static void
1168 account_validity_changed_cb (TpAccountManager *manager,
1169     TpAccount *account,
1170     gboolean valid,
1171     gpointer user_data)
1172 {
1173   if (!valid)
1174     return;
1175
1176   tp_account_prepare_async (account, NULL, account_prepare_cb, user_data);
1177 }
1178
1179 static void
1180 empathy_dispatcher_init (EmpathyDispatcher *self)
1181 {
1182   EmpathyDispatcherPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
1183     EMPATHY_TYPE_DISPATCHER, EmpathyDispatcherPriv);
1184
1185   self->priv = priv;
1186   priv->account_manager = tp_account_manager_dup ();
1187
1188   priv->connections = g_hash_table_new_full (g_direct_hash, g_direct_equal,
1189     g_object_unref, (GDestroyNotify) free_connection_data);
1190
1191   priv->outstanding_classes_requests = g_hash_table_new_full (g_direct_hash,
1192     g_direct_equal, g_object_unref, NULL);
1193
1194   priv->channels = NULL;
1195
1196   tp_account_manager_prepare_async (priv->account_manager, NULL,
1197       account_manager_prepared_cb, self);
1198
1199   empathy_signal_connect_weak (priv->account_manager,
1200       "account-validity-changed", G_CALLBACK (account_validity_changed_cb),
1201       G_OBJECT (self));
1202
1203   priv->request_channel_class_async_ids = g_hash_table_new (g_direct_hash,
1204     g_direct_equal);
1205   priv->status_changed_handlers = g_hash_table_new (g_direct_hash,
1206       g_direct_equal);
1207
1208   priv->dbus = tp_dbus_daemon_dup (NULL);
1209   priv->channel_dispatcher = tp_channel_dispatcher_new (priv->dbus);
1210 }
1211
1212 EmpathyDispatcher *
1213 empathy_dispatcher_new (const gchar *name,
1214   GPtrArray *filters,
1215   GStrv capabilities)
1216 {
1217   EmpathyHandler *handler;
1218   EmpathyDispatcher *ret;
1219
1220   g_assert (dispatcher == NULL);
1221   handler = empathy_handler_new (name, filters, capabilities);
1222
1223   ret = EMPATHY_DISPATCHER (
1224     g_object_new (EMPATHY_TYPE_DISPATCHER,
1225       "handler", handler,
1226       NULL));
1227   g_object_unref (handler);
1228
1229   return ret;
1230 }
1231
1232 EmpathyDispatcher *
1233 empathy_dispatcher_dup_singleton (void)
1234 {
1235   return EMPATHY_DISPATCHER (g_object_new (EMPATHY_TYPE_DISPATCHER, NULL));
1236 }
1237
1238 static void
1239 dispatcher_request_failed (EmpathyDispatcher *self,
1240                            DispatcherRequestData *request_data,
1241                            const GError *error)
1242 {
1243   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1244   ConnectionData *conn_data;
1245
1246   conn_data = g_hash_table_lookup (priv->connections,
1247       request_data->connection);
1248   if (request_data->cb != NULL)
1249     request_data->cb (NULL, error, request_data->user_data);
1250
1251   if (conn_data != NULL)
1252     {
1253       conn_data->outstanding_requests =
1254           g_list_remove (conn_data->outstanding_requests, request_data);
1255     }
1256   /* else Connection has been invalidated */
1257
1258   free_dispatcher_request_data (request_data);
1259 }
1260
1261 static void
1262 dispatcher_connection_new_requested_channel (EmpathyDispatcher *self,
1263   DispatcherRequestData *request_data,
1264   const gchar *object_path,
1265   GHashTable *properties,
1266   const GError *error)
1267 {
1268   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1269   EmpathyDispatchOperation *operation = NULL;
1270   ConnectionData *conn_data;
1271
1272   /* The DispatcherRequestData owns a ref on the self object. As the request
1273    * data could be destroyed (when calling dispatcher_request_failed for
1274    * example) we keep a ref on self to be sure it stays alive while we are
1275    * executing this function. */
1276   g_object_ref (self);
1277
1278   conn_data = g_hash_table_lookup (priv->connections,
1279     request_data->connection);
1280
1281   if (error)
1282     {
1283       DEBUG ("Channel request failed: %s", error->message);
1284
1285       dispatcher_request_failed (self, request_data, error);
1286
1287       return;
1288     }
1289
1290   operation = g_hash_table_lookup (conn_data->dispatching_channels,
1291         object_path);
1292
1293   if (operation == NULL)
1294     {
1295       DispatchData *data = g_hash_table_lookup (conn_data->dispatched_channels,
1296         object_path);
1297
1298       if (data != NULL)
1299         {
1300           operation = empathy_dispatch_operation_new_with_wrapper (
1301             request_data->connection,
1302             data->channel, request_data->contact, FALSE,
1303             data->channel_wrapper);
1304         }
1305       else
1306         {
1307           TpChannel *channel;
1308
1309           if (properties != NULL)
1310             channel = tp_channel_new_from_properties (request_data->connection,
1311               object_path, properties, NULL);
1312           else
1313             channel = tp_channel_new (request_data->connection, object_path,
1314               request_data->channel_type, request_data->handle_type,
1315               request_data->handle, NULL);
1316
1317           g_signal_connect (channel, "invalidated",
1318             G_CALLBACK (dispatcher_channel_invalidated_cb),
1319             request_data->dispatcher);
1320
1321           priv->channels = g_list_prepend (priv->channels, channel);
1322
1323           operation = empathy_dispatch_operation_new (request_data->connection,
1324              channel, request_data->contact, FALSE);
1325           g_object_unref (channel);
1326         }
1327     }
1328   else
1329     {
1330       /* Already existed set potential extra information */
1331       g_object_set (G_OBJECT (operation),
1332         "contact", request_data->contact,
1333         NULL);
1334     }
1335
1336   request_data->operation = operation;
1337
1338   /* (pre)-approve this right away as we requested it
1339    * This might cause the channel to be claimed, in which case the operation
1340    * will disappear. So ref it, and check the status before starting the
1341    * dispatching */
1342
1343   g_object_ref (operation);
1344   empathy_dispatch_operation_approve (operation);
1345
1346    if (empathy_dispatch_operation_get_status (operation) <
1347      EMPATHY_DISPATCHER_OPERATION_STATE_APPROVING)
1348       dispatcher_start_dispatching (request_data->dispatcher, operation,
1349           conn_data);
1350
1351   g_object_unref (operation);
1352 }
1353
1354 static void
1355 dispatcher_request_channel_cb (TpConnection *connection,
1356                                const gchar  *object_path,
1357                                const GError *error,
1358                                gpointer user_data,
1359                                GObject *weak_object)
1360 {
1361   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1362   EmpathyDispatcher *self =
1363       EMPATHY_DISPATCHER (request_data->dispatcher);
1364
1365   request_data->pending_call = NULL;
1366
1367   dispatcher_connection_new_requested_channel (self,
1368     request_data, object_path, NULL, error);
1369 }
1370
1371 static void
1372 dispatcher_request_channel (DispatcherRequestData *request_data)
1373 {
1374   if (tp_proxy_has_interface_by_id (TP_PROXY (request_data->connection),
1375       TP_IFACE_QUARK_CONNECTION_INTERFACE_REQUESTS))
1376     {
1377       /* Extend the request_data to be a valid request */
1378       g_assert (request_data->request == NULL);
1379       request_data->request = tp_asv_new (
1380         TP_IFACE_CHANNEL ".ChannelType",
1381           G_TYPE_STRING, request_data->channel_type,
1382         TP_IFACE_CHANNEL ".TargetHandleType",
1383           G_TYPE_UINT, request_data->handle_type,
1384         NULL);
1385
1386       if (request_data->handle_type != TP_HANDLE_TYPE_NONE)
1387         tp_asv_set_uint32 (request_data->request,
1388           TP_IFACE_CHANNEL ".TargetHandle", request_data->handle);
1389
1390       empathy_dispatcher_call_create_or_ensure_channel (
1391         request_data->dispatcher, request_data);
1392     }
1393   else
1394     {
1395       request_data->pending_call = tp_cli_connection_call_request_channel (
1396         request_data->connection, -1,
1397         request_data->channel_type,
1398         request_data->handle_type,
1399         request_data->handle,
1400         TRUE, dispatcher_request_channel_cb,
1401         request_data, NULL, NULL);
1402     }
1403 }
1404
1405 void
1406 empathy_dispatcher_chat_with_contact (EmpathyContact *contact,
1407                                       EmpathyDispatcherRequestCb *callback,
1408                                       gpointer user_data)
1409 {
1410   EmpathyDispatcher *self;
1411   EmpathyDispatcherPriv *priv;
1412   TpConnection *connection;
1413   ConnectionData *connection_data;
1414   DispatcherRequestData *request_data;
1415
1416   g_return_if_fail (EMPATHY_IS_CONTACT (contact));
1417
1418   self = empathy_dispatcher_dup_singleton ();
1419   priv = GET_PRIV (self);
1420
1421   connection = empathy_contact_get_connection (contact);
1422   connection_data = g_hash_table_lookup (priv->connections, connection);
1423
1424   /* The contact handle might not be known yet */
1425   request_data = new_dispatcher_request_data (self, connection,
1426     TP_IFACE_CHANNEL_TYPE_TEXT, TP_HANDLE_TYPE_CONTACT,
1427     empathy_contact_get_handle (contact), NULL, contact, callback, user_data);
1428   request_data->should_ensure = TRUE;
1429
1430   connection_data->outstanding_requests = g_list_prepend
1431     (connection_data->outstanding_requests, request_data);
1432
1433   dispatcher_request_channel (request_data);
1434
1435   g_object_unref (self);
1436 }
1437
1438 typedef struct
1439 {
1440   EmpathyDispatcher *dispatcher;
1441   EmpathyDispatcherRequestCb *callback;
1442   gpointer user_data;
1443 } ChatWithContactIdData;
1444
1445 static void
1446 dispatcher_chat_with_contact_id_cb (EmpathyTpContactFactory *factory,
1447                                     EmpathyContact          *contact,
1448                                     const GError            *error,
1449                                     gpointer                 user_data,
1450                                     GObject                 *weak_object)
1451 {
1452   ChatWithContactIdData *data = user_data;
1453
1454   if (error)
1455     {
1456       /* FIXME: Should call data->callback with the error */
1457       DEBUG ("Error: %s", error->message);
1458     }
1459   else
1460     {
1461       empathy_dispatcher_chat_with_contact (contact, data->callback,
1462           data->user_data);
1463     }
1464
1465   g_object_unref (data->dispatcher);
1466   g_slice_free (ChatWithContactIdData, data);
1467 }
1468
1469 void
1470 empathy_dispatcher_chat_with_contact_id (TpConnection *connection,
1471                                          const gchar *contact_id,
1472                                          EmpathyDispatcherRequestCb *callback,
1473                                          gpointer user_data)
1474 {
1475   EmpathyDispatcher *self;
1476   EmpathyTpContactFactory *factory;
1477   ChatWithContactIdData *data;
1478
1479   g_return_if_fail (TP_IS_CONNECTION (connection));
1480   g_return_if_fail (!EMP_STR_EMPTY (contact_id));
1481
1482   self = empathy_dispatcher_dup_singleton ();
1483   factory = empathy_tp_contact_factory_dup_singleton (connection);
1484   data = g_slice_new0 (ChatWithContactIdData);
1485   data->dispatcher = self;
1486   data->callback = callback;
1487   data->user_data = user_data;
1488   empathy_tp_contact_factory_get_from_id (factory, contact_id,
1489       dispatcher_chat_with_contact_id_cb, data, NULL, NULL);
1490
1491   g_object_unref (factory);
1492 }
1493
1494 static void
1495 dispatcher_request_handles_cb (TpConnection *connection,
1496                                const GArray *handles,
1497                                const GError *error,
1498                                gpointer user_data,
1499                                GObject *object)
1500 {
1501   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1502
1503   request_data->pending_call = NULL;
1504
1505   if (error != NULL)
1506     {
1507       EmpathyDispatcher *self = request_data->dispatcher;
1508       EmpathyDispatcherPriv *priv = GET_PRIV (self);
1509       ConnectionData *cd;
1510
1511       cd = g_hash_table_lookup (priv->connections, request_data->connection);
1512
1513       if (request_data->cb)
1514         request_data->cb (NULL, error, request_data->user_data);
1515
1516       cd->outstanding_requests = g_list_remove (cd->outstanding_requests,
1517         request_data);
1518
1519       free_dispatcher_request_data (request_data);
1520       return;
1521     }
1522
1523   request_data->handle = g_array_index (handles, guint, 0);
1524   dispatcher_request_channel (request_data);
1525 }
1526
1527 void
1528 empathy_dispatcher_join_muc (TpConnection *connection,
1529                              const gchar *roomname,
1530                              EmpathyDispatcherRequestCb *callback,
1531                              gpointer user_data)
1532 {
1533   EmpathyDispatcher *self;
1534   EmpathyDispatcherPriv *priv;
1535   DispatcherRequestData *request_data;
1536   ConnectionData *connection_data;
1537   const gchar *names[] = { roomname, NULL };
1538
1539   g_return_if_fail (TP_IS_CONNECTION (connection));
1540   g_return_if_fail (!EMP_STR_EMPTY (roomname));
1541
1542   self = empathy_dispatcher_dup_singleton ();
1543   priv = GET_PRIV (self);
1544
1545   connection_data = g_hash_table_lookup (priv->connections, connection);
1546   g_assert (connection_data != NULL);
1547
1548   /* Don't know the room handle yet */
1549   request_data  = new_dispatcher_request_data (self, connection,
1550     TP_IFACE_CHANNEL_TYPE_TEXT, TP_HANDLE_TYPE_ROOM, 0, NULL,
1551     NULL, callback, user_data);
1552   request_data->should_ensure = TRUE;
1553
1554   connection_data->outstanding_requests = g_list_prepend
1555     (connection_data->outstanding_requests, request_data);
1556
1557   request_data->pending_call = tp_cli_connection_call_request_handles (
1558     connection, -1,
1559     TP_HANDLE_TYPE_ROOM, names,
1560     dispatcher_request_handles_cb, request_data, NULL, NULL);
1561
1562   g_object_unref (self);
1563 }
1564
1565 static void
1566 dispatcher_channel_request_failed_cb (TpChannelRequest *request,
1567   const gchar *error,
1568   const gchar *message,
1569   gpointer user_data,
1570   GObject *weak_object)
1571 {
1572   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1573   EmpathyDispatcher *self =
1574       EMPATHY_DISPATCHER (request_data->dispatcher);
1575   GError *err = NULL;
1576
1577   request_data->pending_call = NULL;
1578
1579   DEBUG ("Request failed: %s - %s %s",
1580     tp_proxy_get_object_path (request),
1581     error, message);
1582
1583   tp_proxy_dbus_error_to_gerror (TP_PROXY (request),
1584     error, message, &err);
1585
1586   dispatcher_request_failed (self, request_data, err);
1587
1588   g_error_free (err);
1589 }
1590
1591 static void
1592 dispatcher_channel_request_succeeded_cb (TpChannelRequest *request,
1593   gpointer user_data,
1594   GObject *weak_object)
1595 {
1596   EmpathyDispatcher *self = EMPATHY_DISPATCHER (weak_object);
1597   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1598   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1599   ConnectionData *conn_data;
1600
1601   conn_data = g_hash_table_lookup (priv->connections,
1602     request_data->connection);
1603
1604   DEBUG ("Request succeeded: %s", tp_proxy_get_object_path (request));
1605
1606   /* When success gets called the internal request should have been satisfied,
1607    * if it's still in outstanding_requests and doesn't have an operation
1608    * assigned to it, the channel got handled by someone else.. */
1609
1610   if (g_list_find (conn_data->outstanding_requests, request_data) == NULL)
1611     return;
1612
1613   if (request_data->operation == NULL)
1614     {
1615       GError err = { TP_ERRORS, TP_ERROR_NOT_YOURS, "Not yours!" };
1616       dispatcher_request_failed (self, request_data, &err);
1617     }
1618 }
1619
1620 static void
1621 dispatcher_channel_request_proceed_cb (TpChannelRequest *request,
1622   const GError *error,
1623   gpointer user_data,
1624   GObject *weak_object)
1625 {
1626   EmpathyDispatcher *self = EMPATHY_DISPATCHER (weak_object);
1627   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1628
1629   request_data->pending_call = NULL;
1630
1631   if (error != NULL)
1632     dispatcher_request_failed (self, request_data, error);
1633 }
1634
1635 static void
1636 dispatcher_create_channel_cb (TpChannelDispatcher *proxy,
1637     const gchar *request_path,
1638     const GError *error,
1639     gpointer user_data,
1640     GObject *weak_object)
1641 {
1642   DispatcherRequestData *request_data = (DispatcherRequestData *) user_data;
1643   EmpathyDispatcher *self = EMPATHY_DISPATCHER (request_data->dispatcher);
1644   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1645   TpChannelRequest *request;
1646   GError *err = NULL;
1647
1648   request_data->pending_call = NULL;
1649
1650   if (error != NULL)
1651     {
1652       dispatcher_request_failed (self, request_data, error);
1653       return;
1654     }
1655
1656   request = tp_channel_request_new (priv->dbus, request_path, NULL, NULL);
1657   request_data->channel_request = request;
1658
1659   if (tp_cli_channel_request_connect_to_failed (request,
1660       dispatcher_channel_request_failed_cb, request_data,
1661       NULL, G_OBJECT (self), &err) == NULL)
1662     {
1663       dispatcher_request_failed (self, request_data, err);
1664       g_error_free (err);
1665       return;
1666     }
1667
1668   if (tp_cli_channel_request_connect_to_succeeded (request,
1669       dispatcher_channel_request_succeeded_cb, request_data,
1670       NULL, G_OBJECT (self), &err) == NULL)
1671     {
1672       dispatcher_request_failed (self, request_data, err);
1673       g_error_free (err);
1674       return;
1675     }
1676
1677   request_data->pending_call = tp_cli_channel_request_call_proceed (request,
1678     -1, dispatcher_channel_request_proceed_cb,
1679     request_data, NULL, G_OBJECT (self));
1680 }
1681
1682 static void
1683 empathy_dispatcher_call_create_or_ensure_channel (
1684     EmpathyDispatcher *self,
1685     DispatcherRequestData *request_data)
1686 {
1687   EmpathyDispatcherPriv *priv = GET_PRIV (dispatcher);
1688   TpAccount *account;
1689   const gchar *handler = "";
1690
1691   account = empathy_get_account_for_connection (request_data->connection);
1692
1693   g_assert (account != NULL);
1694
1695   if (request_data->cb)
1696     handler = empathy_handler_get_busname (priv->handler);
1697
1698   if (request_data->should_ensure)
1699     {
1700       request_data->pending_call =
1701           tp_cli_channel_dispatcher_call_ensure_channel (
1702               priv->channel_dispatcher,
1703               -1, tp_proxy_get_object_path (TP_PROXY (account)),
1704               request_data->request, 0, handler,
1705               dispatcher_create_channel_cb, request_data, NULL, NULL);
1706     }
1707   else
1708     {
1709       request_data->pending_call =
1710           tp_cli_channel_dispatcher_call_create_channel (
1711               priv->channel_dispatcher,
1712               -1, tp_proxy_get_object_path (TP_PROXY (account)),
1713               request_data->request, 0, handler,
1714               dispatcher_create_channel_cb, request_data, NULL,
1715               G_OBJECT (dispatcher));
1716     }
1717 }
1718
1719 /**
1720  * empathy_dispatcher_create_channel:
1721  * @self: the EmpathyDispatcher
1722  * @connection: the Connection to dispatch on
1723  * @request: an a{sv} map of properties for the request, i.e. using tp_asv_new()
1724  * @callback: a callback for when the channel arrives (or NULL)
1725  * @user_data: optional user data (or NULL)
1726  *
1727  * When calling this function, #EmpathyDispatcher takes ownership of your
1728  * reference to @request. DO NOT unref or destroy @request. When the request is
1729  * done, @request will be unreferenced. Take another reference if you want to
1730  * keep it around.
1731  */
1732 void
1733 empathy_dispatcher_create_channel (EmpathyDispatcher *self,
1734                                    TpConnection *connection,
1735                                    GHashTable *request,
1736                                    EmpathyDispatcherRequestCb *callback,
1737                                    gpointer user_data)
1738 {
1739   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1740   ConnectionData *connection_data;
1741   DispatcherRequestData *request_data;
1742   const gchar *channel_type;
1743   guint handle_type;
1744   guint handle;
1745   gboolean valid;
1746
1747   g_return_if_fail (EMPATHY_IS_DISPATCHER (self));
1748   g_return_if_fail (TP_IS_CONNECTION (connection));
1749   g_return_if_fail (request != NULL);
1750
1751   connection_data = g_hash_table_lookup (priv->connections, connection);
1752   g_assert (connection_data != NULL);
1753
1754   channel_type = tp_asv_get_string (request, TP_IFACE_CHANNEL ".ChannelType");
1755
1756   handle_type = tp_asv_get_uint32 (request,
1757     TP_IFACE_CHANNEL ".TargetHandleType", &valid);
1758   if (!valid)
1759     handle_type = TP_UNKNOWN_HANDLE_TYPE;
1760
1761   handle = tp_asv_get_uint32 (request, TP_IFACE_CHANNEL ".TargetHandle", NULL);
1762
1763   request_data  = new_dispatcher_request_data (self, connection,
1764     channel_type, handle_type, handle, request,
1765     NULL, callback, user_data);
1766
1767   connection_data->outstanding_requests = g_list_prepend
1768     (connection_data->outstanding_requests, request_data);
1769
1770   empathy_dispatcher_call_create_or_ensure_channel (self, request_data);
1771 }
1772
1773 static gboolean
1774 channel_class_matches (GValueArray *class,
1775                        const char *channel_type,
1776                        guint handle_type,
1777                        GArray *fixed_properties)
1778 {
1779   GHashTable *fprops;
1780   GValue *v;
1781   const char *c_type;
1782   guint h_type;
1783   gboolean valid;
1784
1785   v = g_value_array_get_nth (class, 0);
1786
1787   /* if the class doesn't match channel type discard it. */
1788   fprops = g_value_get_boxed (v);
1789   c_type = tp_asv_get_string (fprops, TP_IFACE_CHANNEL ".ChannelType");
1790
1791   if (tp_strdiff (channel_type, c_type))
1792     return FALSE;
1793
1794   /* we have the right channel type, see if the handle type matches */
1795   h_type = tp_asv_get_uint32 (fprops,
1796                               TP_IFACE_CHANNEL ".TargetHandleType", &valid);
1797
1798   if (!valid || handle_type != h_type)
1799     return FALSE;
1800
1801   if (fixed_properties != NULL)
1802     {
1803       gpointer h_key, h_val;
1804       guint idx;
1805       GHashTableIter iter;
1806       gboolean found;
1807
1808       g_hash_table_iter_init (&iter, fprops);
1809
1810       while (g_hash_table_iter_next (&iter, &h_key, &h_val))
1811         {
1812           /* discard ChannelType and TargetHandleType, as we already
1813            * checked them.
1814            */
1815           if (!tp_strdiff ((char *) h_key, TP_IFACE_CHANNEL ".ChannelType") ||
1816               !tp_strdiff
1817                 ((char *) h_key, TP_IFACE_CHANNEL ".TargetHandleType"))
1818             continue;
1819
1820           found = FALSE;
1821
1822           for (idx = 0; idx < fixed_properties->len; idx++)
1823             {
1824               /* if |key| doesn't exist in |fixed_properties|, discard
1825                * the class.
1826                */
1827               if (!tp_strdiff
1828                     ((char *) h_key,
1829                      g_array_index (fixed_properties, char *, idx)))
1830                 {
1831                   found = TRUE;
1832                   /* exit the for() loop */
1833                   break;
1834                 }
1835             }
1836
1837           if (!found)
1838             return FALSE;
1839         }
1840     }
1841   else
1842     {
1843       /* if no fixed_properties are specified, discard the classes
1844        * with some fixed properties other than the two we already
1845        * checked.
1846        */
1847       if (g_hash_table_size (fprops) > 2)
1848         return FALSE;
1849     }
1850
1851   return TRUE;
1852 }
1853
1854 static GList *
1855 empathy_dispatcher_find_channel_classes (EmpathyDispatcher *self,
1856                                          TpConnection *connection,
1857                                          const gchar *channel_type,
1858                                          guint handle_type,
1859                                          GArray *fixed_properties)
1860 {
1861   EmpathyDispatcherPriv *priv = GET_PRIV (self);
1862   GValueArray *class;
1863   GPtrArray *classes;
1864   GList *matching_classes;
1865   guint i;
1866   ConnectionData *cd;
1867
1868   g_return_val_if_fail (channel_type != NULL, NULL);
1869   g_return_val_if_fail (handle_type != 0, NULL);
1870
1871   cd = g_hash_table_lookup (priv->connections, connection);
1872
1873   if (cd == NULL)
1874     return NULL;
1875
1876   classes = cd->requestable_channels;
1877   if (classes == NULL)
1878     return NULL;
1879
1880   matching_classes = NULL;
1881
1882   for (i = 0; i < classes->len; i++)
1883     {
1884       class = g_ptr_array_index (classes, i);
1885
1886       if (!channel_class_matches
1887           (class, channel_type, handle_type, fixed_properties))
1888         continue;
1889
1890       matching_classes = g_list_prepend (matching_classes, class);
1891     }
1892
1893   return matching_classes;
1894 }
1895
1896 static gboolean
1897 find_channel_class_idle_cb (gpointer user_data)
1898 {
1899   GList *retval;
1900   GList *requests;
1901   FindChannelRequest *request = user_data;
1902   ConnectionData *cd;
1903   gboolean is_ready = TRUE;
1904   EmpathyDispatcherPriv *priv = GET_PRIV (request->dispatcher);
1905
1906   g_hash_table_remove (priv->request_channel_class_async_ids, request);
1907
1908   cd = g_hash_table_lookup (priv->connections, request->connection);
1909
1910   if (cd == NULL)
1911     is_ready = FALSE;
1912   else if (cd->requestable_channels == NULL)
1913     is_ready = FALSE;
1914
1915   if (is_ready)
1916     {
1917       retval = empathy_dispatcher_find_channel_classes (request->dispatcher,
1918           request->connection, request->channel_type, request->handle_type,
1919           request->properties);
1920
1921       request->callback (retval, request->user_data);
1922       free_find_channel_request (request);
1923       g_list_free (retval);
1924
1925       return FALSE;
1926     }
1927
1928   requests = g_hash_table_lookup (priv->outstanding_classes_requests,
1929       request->connection);
1930   requests = g_list_prepend (requests, request);
1931
1932   g_hash_table_insert (priv->outstanding_classes_requests,
1933       request->connection, requests);
1934
1935   return FALSE;
1936 }
1937
1938 static GArray *
1939 setup_varargs (va_list var_args,
1940                const char *channel_namespace,
1941                const char *first_property_name)
1942 {
1943   const char *name;
1944   char *name_full;
1945   GArray *properties;
1946
1947   if (first_property_name == NULL)
1948     return NULL;
1949
1950   name = first_property_name;
1951   properties = g_array_new (TRUE, TRUE, sizeof (char *));
1952
1953   while (name != NULL)
1954     {
1955       name_full = g_strdup (name);
1956       properties = g_array_append_val (properties, name_full);
1957       name = va_arg (var_args, char *);
1958     }
1959
1960   return properties;
1961 }
1962
1963 /**
1964  * empathy_dispatcher_find_requestable_channel_classes:
1965  * @dispatcher: an #EmpathyDispatcher
1966  * @connection: a #TpConnection
1967  * @channel_type: a string identifying the type of the channel to lookup
1968  * @handle_type: the handle type for the channel
1969  * @first_property_name: %NULL, or the name of the first fixed property,
1970  * followed optionally by more names, followed by %NULL.
1971  *
1972  * Returns all the channel classes that a client can request for the connection
1973  * @connection, of the type identified by @channel_type, @handle_type and the
1974  * fixed properties list.
1975  * The classes which are compatible with a fixed properties list (i.e. those
1976  * that will be returned by this function) are intended as those that do not
1977  * contain any fixed property other than those in the list; note that this
1978  * doesn't guarantee that all the classes compatible with the list will contain
1979  * all the requested fixed properties, so the clients will have to filter
1980  * the returned list themselves.
1981  * If @first_property_name is %NULL, only the classes with no other fixed
1982  * properties than ChannelType and TargetHandleType will be returned.
1983  * Note that this function may return %NULL without performing any lookup if
1984  * @connection is not ready. To ensure that @connection is always ready,
1985  * use the empathy_dispatcher_find_requestable_channel_classes_async() variant.
1986  *
1987  * Return value: a #GList of #GValueArray objects, where the first element in
1988  * the array is a #GHashTable of the fixed properties, and the second is
1989  * a #GStrv of the allowed properties for the class. The list should be free'd
1990  * with g_list_free() when done, but the objects inside the list are owned
1991  * by the #EmpathyDispatcher and must not be modified.
1992  */
1993 GList *
1994 empathy_dispatcher_find_requestable_channel_classes
1995                                  (EmpathyDispatcher *self,
1996                                   TpConnection *connection,
1997                                   const gchar *channel_type,
1998                                   guint handle_type,
1999                                   const char *first_property_name,
2000                                   ...)
2001 {
2002   va_list var_args;
2003   GArray *properties;
2004   EmpathyDispatcherPriv *priv;
2005   GList *retval;
2006   guint idx;
2007   char *str;
2008
2009   g_return_val_if_fail (EMPATHY_IS_DISPATCHER (self), NULL);
2010   g_return_val_if_fail (TP_IS_CONNECTION (connection), NULL);
2011   g_return_val_if_fail (channel_type != NULL, NULL);
2012   g_return_val_if_fail (handle_type != 0, NULL);
2013
2014   priv = GET_PRIV (self);
2015
2016   va_start (var_args, first_property_name);
2017
2018   properties = setup_varargs (var_args, channel_type, first_property_name);
2019
2020   va_end (var_args);
2021
2022   retval = empathy_dispatcher_find_channel_classes (self, connection,
2023     channel_type, handle_type, properties);
2024
2025   if (properties != NULL)
2026     {
2027       /* free the properties array */
2028       for (idx = 0; idx < properties->len ; idx++)
2029         {
2030           str = g_array_index (properties, char *, idx);
2031           g_free (str);
2032         }
2033
2034       g_array_free (properties, TRUE);
2035     }
2036
2037   return retval;
2038 }
2039
2040 /**
2041  * empathy_dispatcher_find_requestable_channel_classes_async:
2042  * @dispatcher: an #EmpathyDispatcher
2043  * @connection: a #TpConnection
2044  * @channel_type: a string identifying the type of the channel to lookup
2045  * @handle_type: the handle type for the channel
2046  * @callback: the callback to call when @connection is ready
2047  * @user_data: the user data to pass to @callback
2048  * @first_property_name: %NULL, or the name of the first fixed property,
2049  * followed optionally by more names, followed by %NULL.
2050  *
2051  * Please see the documentation of
2052  * empathy_dispatcher_find_requestable_channel_classes() for a detailed
2053  * description of this function.
2054  */
2055 void
2056 empathy_dispatcher_find_requestable_channel_classes_async
2057                                  (EmpathyDispatcher *self,
2058                                   TpConnection *connection,
2059                                   const gchar *channel_type,
2060                                   guint handle_type,
2061                                   EmpathyDispatcherFindChannelClassCb callback,
2062                                   gpointer user_data,
2063                                   const char *first_property_name,
2064                                   ...)
2065 {
2066   va_list var_args;
2067   GArray *properties;
2068   FindChannelRequest *request;
2069   EmpathyDispatcherPriv *priv;
2070   guint source_id;
2071
2072   g_return_if_fail (EMPATHY_IS_DISPATCHER (self));
2073   g_return_if_fail (TP_IS_CONNECTION (connection));
2074   g_return_if_fail (channel_type != NULL);
2075   g_return_if_fail (handle_type != 0);
2076
2077   priv = GET_PRIV (self);
2078
2079   va_start (var_args, first_property_name);
2080
2081   properties = setup_varargs (var_args, channel_type, first_property_name);
2082
2083   va_end (var_args);
2084
2085   /* append another request for this connection */
2086   request = g_slice_new0 (FindChannelRequest);
2087   request->dispatcher = g_object_ref (self);
2088   request->channel_type = g_strdup (channel_type);
2089   request->handle_type = handle_type;
2090   request->connection = connection;
2091   request->callback = callback;
2092   request->user_data = user_data;
2093   request->properties = properties;
2094
2095   source_id = g_idle_add (find_channel_class_idle_cb, request);
2096
2097   g_hash_table_insert (priv->request_channel_class_async_ids,
2098     request, GUINT_TO_POINTER (source_id));
2099 }
2100
2101 static GList *
2102 empathy_dispatcher_get_channels (EmpathyHandler *handler,
2103   gpointer user_data)
2104 {
2105   EmpathyDispatcher *self = EMPATHY_DISPATCHER (user_data);
2106   EmpathyDispatcherPriv *priv = GET_PRIV (self);
2107
2108   return priv->channels;
2109 }
2110
2111 static gboolean
2112 empathy_dispatcher_handle_channels (EmpathyHandler *handler,
2113     const gchar *account_path,
2114     const gchar *connection_path,
2115     const GPtrArray *channels,
2116     const GPtrArray *requests_satisfied,
2117     guint64 timestamp,
2118     GHashTable *handler_info,
2119     gpointer user_data,
2120     GError **error)
2121 {
2122   EmpathyDispatcher *self = EMPATHY_DISPATCHER (user_data);
2123   EmpathyDispatcherPriv *priv = GET_PRIV (self);
2124   guint i;
2125   TpAccount *account;
2126   TpConnection *connection;
2127
2128   /* FIXME: should probably find out whether the account manager is prepared
2129    * before ensuring. See bug #600111. */
2130   account = tp_account_manager_ensure_account (priv->account_manager,
2131     account_path);
2132   g_assert (account != NULL);
2133
2134   connection = tp_account_ensure_connection (account, connection_path);
2135   if (connection == NULL)
2136     {
2137       g_set_error_literal (error, TP_ERRORS, TP_ERROR_INVALID_ARGUMENT,
2138         "Invalid connection argument");
2139       return FALSE;
2140     }
2141
2142   for (i = 0; i < channels->len ; i++)
2143     {
2144       GValueArray *arr = g_ptr_array_index (channels, i);
2145       const gchar *object_path;
2146       GHashTable *properties;
2147
2148       object_path = g_value_get_boxed (g_value_array_get_nth (arr, 0));
2149       properties = g_value_get_boxed (g_value_array_get_nth (arr, 1));
2150
2151       dispatcher_connection_new_channel_with_properties (self,
2152         connection, object_path, properties, requests_satisfied);
2153     }
2154
2155   return TRUE;
2156 }
2157
2158
2159 EmpathyHandler *
2160 empathy_dispatcher_add_handler (EmpathyDispatcher *self,
2161     const gchar *name,
2162     GPtrArray *filters,
2163     GStrv capabilities)
2164 {
2165   EmpathyDispatcherPriv *priv = GET_PRIV (self);
2166   EmpathyHandler *handler;
2167
2168   handler = empathy_handler_new (name, filters, capabilities);
2169   priv->handlers = g_list_prepend (priv->handlers, handler);
2170
2171   /* Only set the handle_channels function, the Channel property on the main
2172    * handler will always report all dispatched channels even if they came from
2173    * a different Handler */
2174   empathy_handler_set_handle_channels_func (handler,
2175     empathy_dispatcher_handle_channels, self);
2176
2177   return handler;
2178 }
2179
2180 void
2181 empathy_dispatcher_remove_handler (EmpathyDispatcher *self,
2182   EmpathyHandler *handler)
2183 {
2184   EmpathyDispatcherPriv *priv = GET_PRIV (self);
2185   GList *h;
2186
2187   h = g_list_find (priv->handlers, handler);
2188   g_return_if_fail (h != NULL);
2189
2190   priv->handlers = g_list_delete_link (priv->handlers, h);
2191
2192   g_object_unref (handler);
2193 }