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