src/empathy-tube-dispatch.c

   1 /*
   2  * empathy-tube-dispatch.c - Source for EmpathyTubeDispatch
   3  * Copyright (C) 2008 Collabora Ltd.
   4  * @author Sjoerd Simons <sjoerd.simons@collabora.co.uk>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 #include <telepathy-glib/dbus.h>
  26 #include <telepathy-glib/util.h>
  27 #include <telepathy-glib/proxy-subclass.h>
  28
  29 #include <gtk/gtk.h>
  30 #include <glib/gi18n.h>
  31
  32
  33 #include <libempathy/empathy-tube-handler.h>
  34 #include <extensions/extensions.h>
  35
  36
  37 #include "empathy-tube-dispatch.h"
  38 #include "empathy-tube-dispatch-enumtypes.h"
  39
  40 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  41 #include <libempathy/empathy-debug.h>
  42
  43 G_DEFINE_TYPE(EmpathyTubeDispatch, empathy_tube_dispatch, G_TYPE_OBJECT)
  44
  45 static void empathy_tube_dispatch_set_ability (
  46   EmpathyTubeDispatch *tube_dispatch,
  47   EmpathyTubeDispatchAbility dispatchability);
  48
  49 /* private structure */
  50 typedef struct _EmpathyTubeDispatchPriv EmpathyTubeDispatchPriv;
  51
  52 /* properties */
  53 enum {
  54     PROP_OPERATION = 1,
  55     PROP_DISPATCHABILITY
  56 };
  57
  58
  59 struct _EmpathyTubeDispatchPriv
  60 {
  61   gboolean dispose_has_run;
  62   EmpathyDispatchOperation *operation;
  63   EmpathyTubeDispatchAbility dispatchability;
  64   gchar *service;
  65   gchar *bus_name;
  66   gchar *object_path;
  67   TpDBusDaemon *dbus;
  68 };
  69
  70 #define GET_PRIV(o) \
  71  (G_TYPE_INSTANCE_GET_PRIVATE ((o), \
  72   EMPATHY_TYPE_TUBE_DISPATCH, EmpathyTubeDispatchPriv))
  73
  74 static void
  75 empathy_tube_dispatch_init (EmpathyTubeDispatch *obj)
  76 {
  77   EmpathyTubeDispatchPriv *priv = GET_PRIV (obj);
  78
  79   priv->dispatchability = EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN;
  80 }
  81
  82 static void empathy_tube_dispatch_dispose (GObject *object);
  83 static void empathy_tube_dispatch_finalize (GObject *object);
  84
  85 static void
  86 empathy_tube_dispatch_list_activatable_names_cb (TpDBusDaemon *proxy,
  87   const gchar **names, const GError *error, gpointer user_data,
  88   GObject *object)
  89 {
  90   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
  91   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
  92   gchar **name;
  93
  94   for (name = (gchar **) names; *name != NULL; name++)
  95     {
  96       if (!tp_strdiff (*name, priv->bus_name))
  97         {
  98           DEBUG ("Found tube handler. Can dispatch it");
  99           empathy_tube_dispatch_set_ability (self,
 100             EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE);
 101           return;
 102         }
 103     }
 104
 105   DEBUG ("Didn't find tube handler. Can't dispatch it");
 106   empathy_tube_dispatch_set_ability (self,
 107     EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE);
 108 }
 109
 110 static void
 111 empathy_tube_dispatch_name_has_owner_cb (TpDBusDaemon *proxy,
 112   gboolean has_owner, const GError *error, gpointer user_data,
 113   GObject *object)
 114 {
 115   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
 116   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 117
 118   if (error != NULL)
 119     {
 120       DEBUG ("NameHasOwner failed. Can't dispatch tube");
 121       empathy_tube_dispatch_set_ability (self,
 122         EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE);
 123       return;
 124     }
 125
 126   if (has_owner)
 127     {
 128       DEBUG ("Tube handler is running. Can dispatch it");
 129       empathy_tube_dispatch_set_ability (self,
 130         EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE);
 131     }
 132   else
 133     {
 134       DEBUG ("Tube handler is not running. Calling ListActivatableNames");
 135       tp_cli_dbus_daemon_call_list_activatable_names (priv->dbus, -1,
 136         empathy_tube_dispatch_list_activatable_names_cb, NULL, NULL,
 137         G_OBJECT (self));
 138     }
 139 }
 140
 141 static void
 142 empathy_tube_dispatch_constructed (GObject *object)
 143 {
 144   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
 145   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 146   TpChannel *channel;
 147   GHashTable *properties;
 148   const gchar *service;
 149   const gchar *channel_type;
 150   TpTubeType type;
 151
 152   priv->dbus = tp_dbus_daemon_new (tp_get_bus());
 153
 154   channel = empathy_dispatch_operation_get_channel (priv->operation);
 155   properties = tp_channel_borrow_immutable_properties (channel);
 156
 157   channel_type = tp_asv_get_string (properties,
 158     TP_IFACE_CHANNEL ".ChannelType");
 159   if (channel_type == NULL)
 160     goto failed;
 161
 162   if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE))
 163     {
 164       type = TP_TUBE_TYPE_STREAM;
 165       service = tp_asv_get_string (properties,
 166         EMP_IFACE_CHANNEL_TYPE_STREAM_TUBE  ".Service");
 167     }
 168   else if (!tp_strdiff (channel_type, EMP_IFACE_CHANNEL_TYPE_DBUS_TUBE))
 169     {
 170       type = TP_TUBE_TYPE_DBUS;
 171       service = tp_asv_get_string (properties,
 172         EMP_IFACE_CHANNEL_TYPE_DBUS_TUBE  ".ServiceName");
 173     }
 174   else
 175     {
 176       goto failed;
 177     }
 178
 179
 180   if (service == NULL)
 181     goto failed;
 182
 183   priv->bus_name = empathy_tube_handler_build_bus_name (type, service);
 184   priv->object_path = empathy_tube_handler_build_object_path (type, service);
 185
 186   priv->service = g_strdup (service);
 187
 188   DEBUG ("Look for tube handler %s\n", priv->bus_name);
 189   tp_cli_dbus_daemon_call_name_has_owner (priv->dbus, -1, priv->bus_name,
 190     empathy_tube_dispatch_name_has_owner_cb, NULL, NULL, G_OBJECT (self));
 191
 192   return;
 193
 194 failed:
 195   empathy_tube_dispatch_set_ability (self,
 196     EMPATHY_TUBE_DISPATCHABILITY_IMPOSSIBLE);
 197 }
 198
 199 static void
 200 empathy_tube_dispatch_set_property (GObject *object,
 201   guint property_id, const GValue *value, GParamSpec *pspec)
 202 {
 203   EmpathyTubeDispatch *tube_dispatch = EMPATHY_TUBE_DISPATCH (object);
 204   EmpathyTubeDispatchPriv *priv = GET_PRIV (tube_dispatch);
 205
 206   switch (property_id)
 207     {
 208       case PROP_OPERATION:
 209         priv->operation = g_value_dup_object (value);
 210         break;
 211       default:
 212         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 213         break;
 214     }
 215 }
 216
 217 static void
 218 empathy_tube_dispatch_get_property (GObject *object,
 219   guint property_id, GValue *value, GParamSpec *pspec)
 220 {
 221   EmpathyTubeDispatch *tube_dispatch = EMPATHY_TUBE_DISPATCH (object);
 222   EmpathyTubeDispatchPriv *priv = GET_PRIV (tube_dispatch);
 223
 224   switch (property_id)
 225     {
 226       case PROP_OPERATION:
 227         g_value_set_object (value, priv->operation);
 228         break;
 229       case PROP_DISPATCHABILITY:
 230         g_value_set_enum (value, priv->dispatchability);
 231         break;
 232       default:
 233         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 234         break;
 235     }
 236 }
 237
 238 static void
 239 empathy_tube_dispatch_class_init (
 240   EmpathyTubeDispatchClass *empathy_tube_dispatch_class)
 241 {
 242   GObjectClass *object_class = G_OBJECT_CLASS (empathy_tube_dispatch_class);
 243   GParamSpec *param_spec;
 244
 245   g_type_class_add_private (empathy_tube_dispatch_class,
 246     sizeof (EmpathyTubeDispatchPriv));
 247
 248   object_class->set_property = empathy_tube_dispatch_set_property;
 249   object_class->get_property = empathy_tube_dispatch_get_property;
 250
 251   object_class->constructed = empathy_tube_dispatch_constructed;
 252   object_class->dispose = empathy_tube_dispatch_dispose;
 253   object_class->finalize = empathy_tube_dispatch_finalize;
 254
 255   param_spec = g_param_spec_object ("operation",
 256     "operation", "The telepathy connection",
 257     EMPATHY_TYPE_DISPATCH_OPERATION,
 258     G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
 259   g_object_class_install_property (object_class, PROP_OPERATION, param_spec);
 260
 261   param_spec = g_param_spec_enum ("dispatchability",
 262     "dispatchability",
 263     "Whether or not there is a handler to dispatch the operation to",
 264     EMPATHY_TYPE_TUBE_DISPATCH_ABILITY, EMPATHY_TUBE_DISPATCHABILITY_UNKNOWN,
 265     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 266   g_object_class_install_property (object_class, PROP_DISPATCHABILITY,
 267     param_spec);
 268
 269 }
 270
 271 void
 272 empathy_tube_dispatch_dispose (GObject *object)
 273 {
 274   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
 275   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 276
 277   if (priv->dispose_has_run)
 278     return;
 279
 280   priv->dispose_has_run = TRUE;
 281
 282   /* release any references held by the object here */
 283   if (priv->operation != NULL)
 284     g_object_unref (priv->operation);
 285
 286   priv->operation = NULL;
 287
 288   if (priv->dbus != NULL)
 289     g_object_unref (priv->dbus);
 290
 291   priv->dbus = NULL;
 292
 293
 294   if (G_OBJECT_CLASS (empathy_tube_dispatch_parent_class)->dispose)
 295     G_OBJECT_CLASS (empathy_tube_dispatch_parent_class)->dispose (object);
 296 }
 297
 298 void
 299 empathy_tube_dispatch_finalize (GObject *object)
 300 {
 301   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
 302   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 303
 304   g_free (priv->bus_name);
 305   g_free (priv->object_path);
 306   g_free (priv->service);
 307
 308   /* free any data held directly by the object here */
 309
 310   G_OBJECT_CLASS (empathy_tube_dispatch_parent_class)->finalize (object);
 311 }
 312
 313 EmpathyTubeDispatch *
 314 empathy_tube_dispatch_new (EmpathyDispatchOperation *operation)
 315 {
 316   return EMPATHY_TUBE_DISPATCH (g_object_new (EMPATHY_TYPE_TUBE_DISPATCH,
 317       "operation", operation, NULL));
 318 }
 319
 320 EmpathyTubeDispatchAbility
 321 empathy_tube_dispatch_is_dispatchable (EmpathyTubeDispatch *tube_dispatch)
 322 {
 323   EmpathyTubeDispatchPriv *priv = GET_PRIV (tube_dispatch);
 324
 325   return priv->dispatchability;
 326 }
 327
 328 static void
 329 empathy_tube_dispatch_set_ability (EmpathyTubeDispatch *tube_dispatch,
 330   EmpathyTubeDispatchAbility dispatchability)
 331 {
 332   EmpathyTubeDispatchPriv *priv = GET_PRIV (tube_dispatch);
 333
 334   if (priv->dispatchability == dispatchability)
 335     return;
 336
 337   priv->dispatchability = dispatchability;
 338   g_object_notify (G_OBJECT (tube_dispatch), "dispatchability");
 339 }
 340
 341 static void
 342 empathy_tube_dispatch_show_error (EmpathyTubeDispatch *self, gchar *message)
 343 {
 344   GtkWidget *dialog;
 345
 346   dialog = gtk_message_dialog_new (NULL, GTK_DIALOG_MODAL,
 347       GTK_MESSAGE_WARNING, GTK_BUTTONS_CLOSE, "%s", message);
 348
 349   gtk_dialog_run (GTK_DIALOG (dialog));
 350
 351   gtk_widget_destroy (dialog);
 352 }
 353
 354 static void
 355 empathy_tube_dispatch_handle_tube_cb (TpProxy *proxy, const GError *error,
 356   gpointer user_data, GObject *object)
 357 {
 358   EmpathyTubeDispatch *self = EMPATHY_TUBE_DISPATCH (object);
 359   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 360
 361   if (error != NULL)
 362     {
 363       gchar *msg = g_strdup_printf (
 364         _("Unable to start application for service %s: %s"),
 365           priv->service,  error->message);
 366
 367       empathy_tube_dispatch_show_error (self, msg);
 368       g_free (msg);
 369     }
 370
 371   /* Remove the ref we were holding because of the dispatching */
 372   g_object_unref (object);
 373 }
 374
 375 static void
 376 empathy_tube_do_dispatch (EmpathyTubeDispatch *self)
 377 {
 378   EmpathyTubeDispatchPriv *priv = GET_PRIV (self);
 379   TpChannel *channel;
 380   TpProxy *connection;
 381   TpProxy *thandler;
 382   gchar   *object_path;
 383   guint    handle_type;
 384   guint    handle;
 385
 386   channel = empathy_dispatch_operation_get_channel (priv->operation);
 387
 388   /* Create the proxy for the tube handler */
 389   thandler = g_object_new (TP_TYPE_PROXY,
 390     "dbus-connection", tp_get_bus (),
 391     "bus-name", priv->bus_name,
 392     "object-path", priv->object_path,
 393     NULL);
 394
 395   tp_proxy_add_interface_by_id (thandler, EMP_IFACE_QUARK_TUBE_HANDLER);
 396
 397   /* Give the tube to the handler */
 398   g_object_get (channel,
 399     "connection", &connection,
 400     "object-path", &object_path,
 401     "handle_type", &handle_type,
 402     "handle", &handle,
 403     NULL);
 404
 405   emp_cli_tube_handler_call_handle_tube (thandler, -1,
 406     connection->bus_name, connection->object_path,
 407     object_path, handle_type, handle,
 408     empathy_tube_dispatch_handle_tube_cb, NULL, NULL, G_OBJECT (self));
 409
 410   g_object_unref (thandler);
 411   g_object_unref (connection);
 412   g_free (object_path);
 413 }
 414
 415 void
 416 empathy_tube_dispatch_handle (EmpathyTubeDispatch *tube_dispatch)
 417 {
 418   EmpathyTubeDispatchPriv *priv = GET_PRIV (tube_dispatch);
 419
 420   /* Keep ourselves alive untill the dispatching is finished */
 421   g_object_ref (tube_dispatch);
 422
 423   /* If we can't claim it, don't do anything */
 424   if (!empathy_dispatch_operation_claim (priv->operation))
 425     goto done;
 426
 427   if (priv->dispatchability != EMPATHY_TUBE_DISPATCHABILITY_POSSIBLE)
 428     {
 429       gchar *msg;
 430       TpChannel *channel;
 431
 432       channel = empathy_dispatch_operation_get_channel (priv->operation);
 433
 434       msg = g_strdup_printf (
 435         _("An invitation was offered for service %s, but you don't have the "
 436           "needed application to handle it"), priv->service);
 437
 438       empathy_tube_dispatch_show_error (tube_dispatch, msg);
 439
 440       g_free (msg);
 441
 442       tp_cli_channel_call_close (channel, -1, NULL, NULL, NULL, NULL);
 443
 444       goto done;
 445     }
 446   else
 447     {
 448       empathy_tube_do_dispatch (tube_dispatch);
 449     }
 450
 451   return;
 452 done:
 453   g_object_unref (tube_dispatch);
 454 }
 455