libempathy/empathy-handler.c

   1 /*
   2  * Copyright (C) 2007-2009 Collabora Ltd.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  *
  18  * Authors: Xavier Claessens <xclaesse@gmail.com>
  19  *          Sjoerd Simons <sjoerd.simons@collabora.co.uk>
  20  *          Cosimo Cecchi <cosimo.cecchi@collabora.co.uk>
  21  */
  22
  23 #include <config.h>
  24
  25 #include <telepathy-glib/dbus.h>
  26 #include <telepathy-glib/proxy-subclass.h>
  27 #include <telepathy-glib/gtypes.h>
  28 #include <telepathy-glib/defs.h>
  29 #include <telepathy-glib/svc-client.h>
  30 #include <telepathy-glib/svc-generic.h>
  31 #include <telepathy-glib/interfaces.h>
  32
  33 #include "empathy-handler.h"
  34 #include "empathy-utils.h"
  35
  36 #define DEBUG_FLAG EMPATHY_DEBUG_DISPATCHER
  37 #include <libempathy/empathy-debug.h>
  38
  39 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyHandler)
  40 typedef struct
  41 {
  42   EmpathyHandlerHandleChannelsFunc *handle_channels;
  43   gpointer handle_channels_user_data;
  44
  45   EmpathyHandlerChannelsFunc *channels;
  46   gpointer channels_user_data;
  47
  48   gchar *name;
  49   gchar *busname;
  50
  51   GPtrArray *filters;
  52   GStrv *capabilities;
  53
  54   gboolean dispose_run;
  55 } EmpathyHandlerPriv;
  56
  57 static void empathy_handler_client_handler_iface_init (gpointer g_iface,
  58     gpointer g_iface_data);
  59
  60 G_DEFINE_TYPE_WITH_CODE (EmpathyHandler,
  61     empathy_handler,
  62     G_TYPE_OBJECT,
  63     G_IMPLEMENT_INTERFACE (TP_TYPE_SVC_DBUS_PROPERTIES,
  64       tp_dbus_properties_mixin_iface_init);
  65     G_IMPLEMENT_INTERFACE (TP_TYPE_SVC_CLIENT, NULL);
  66     G_IMPLEMENT_INTERFACE (TP_TYPE_SVC_CLIENT_HANDLER,
  67       empathy_handler_client_handler_iface_init);
  68   );
  69
  70 static const gchar *empathy_handler_interfaces[] = {
  71   TP_IFACE_CLIENT_HANDLER,
  72   NULL
  73 };
  74
  75 enum
  76 {
  77   PROP_INTERFACES = 1,
  78   PROP_CHANNEL_FILTER,
  79   PROP_CHANNELS,
  80   PROP_CAPABILITIES,
  81   PROP_NAME,
  82 };
  83
  84 static GObject *
  85 handler_constructor (GType type,
  86     guint n_construct_params,
  87     GObjectConstructParam *construct_params)
  88 {
  89   GObject *obj =
  90     G_OBJECT_CLASS (empathy_handler_parent_class)->constructor
  91       (type, n_construct_params, construct_params);
  92   EmpathyHandler *handler = EMPATHY_HANDLER (obj);
  93   EmpathyHandlerPriv *priv = GET_PRIV (handler);
  94   TpDBusDaemon *dbus;
  95   gchar *object_path;
  96
  97   priv = GET_PRIV (handler);
  98
  99   priv->busname = g_strdup_printf (TP_CLIENT_BUS_NAME_BASE"%s", priv->name);
 100   object_path = g_strdup_printf (TP_CLIENT_OBJECT_PATH_BASE"%s",
 101     priv->name);
 102
 103   dbus = tp_dbus_daemon_dup (NULL);
 104
 105   g_assert (tp_dbus_daemon_request_name (dbus,
 106     priv->busname, TRUE, NULL));
 107   dbus_g_connection_register_g_object (tp_get_bus (),
 108     object_path, obj);
 109
 110   DEBUG ("Registered at '%s'", object_path);
 111
 112   g_free (object_path);
 113   g_object_unref (dbus);
 114
 115   return G_OBJECT (handler);
 116 }
 117
 118 static void
 119 handler_dispose (GObject *object)
 120 {
 121   EmpathyHandlerPriv *priv = GET_PRIV (object);
 122   TpDBusDaemon *dbus;
 123
 124   if (priv->dispose_run)
 125     return;
 126
 127   priv->dispose_run = TRUE;
 128
 129   dbus = tp_dbus_daemon_dup (NULL);
 130
 131   tp_dbus_daemon_release_name (dbus, priv->busname, NULL);
 132
 133   g_object_unref (dbus);
 134
 135   if (G_OBJECT_CLASS (empathy_handler_parent_class)->dispose != NULL)
 136     G_OBJECT_CLASS (empathy_handler_parent_class)->dispose (object);
 137 }
 138
 139 static void
 140 handler_finalize (GObject *object)
 141 {
 142   EmpathyHandlerPriv *priv = GET_PRIV (object);
 143
 144   if (priv->filters != NULL)
 145     g_boxed_free (TP_ARRAY_TYPE_CHANNEL_CLASS_LIST, priv->filters);
 146
 147   if (priv->capabilities != NULL)
 148     g_boxed_free (G_TYPE_STRV, priv->capabilities);
 149
 150   g_free (priv->name);
 151   g_free (priv->busname);
 152
 153   if (G_OBJECT_CLASS (empathy_handler_parent_class)->finalize != NULL)
 154     G_OBJECT_CLASS (empathy_handler_parent_class)->finalize (object);
 155 }
 156
 157 static void
 158 handler_set_property (GObject *object,
 159     guint property_id,
 160     const GValue *value,
 161     GParamSpec *pspec)
 162 {
 163   EmpathyHandler *handler = EMPATHY_HANDLER (object);
 164   EmpathyHandlerPriv *priv = GET_PRIV (handler);
 165
 166   switch (property_id)
 167     {
 168       case PROP_CHANNEL_FILTER:
 169         priv->filters = g_value_dup_boxed (value);
 170         if (priv->filters == NULL)
 171           priv->filters = g_ptr_array_new ();
 172         break;
 173       case PROP_CAPABILITIES:
 174         priv->capabilities = g_value_dup_boxed (value);
 175         break;
 176       case PROP_NAME:
 177         priv->name = g_value_dup_string (value);
 178         if (EMP_STR_EMPTY (priv->name))
 179           {
 180             TpDBusDaemon *bus;
 181
 182             bus = tp_dbus_daemon_dup (NULL);
 183             priv->name = g_strdup_printf ("%s%p",
 184                 tp_dbus_daemon_get_unique_name (bus), object);
 185             g_object_unref (bus);
 186           }
 187         break;
 188       default:
 189         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 190         break;
 191     }
 192 }
 193
 194 static void
 195 handler_get_property (GObject *object,
 196     guint property_id,
 197     GValue *value,
 198     GParamSpec *pspec)
 199 {
 200   EmpathyHandler *self = EMPATHY_HANDLER (object);
 201   EmpathyHandlerPriv *priv = GET_PRIV (self);
 202
 203   switch (property_id)
 204     {
 205       case PROP_INTERFACES:
 206         g_value_set_boxed (value, empathy_handler_interfaces);
 207         break;
 208       case PROP_CHANNEL_FILTER:
 209         g_value_set_boxed (value, priv->filters);
 210         break;
 211       case PROP_CAPABILITIES:
 212         g_value_set_boxed (value, priv->capabilities);
 213         break;
 214       case PROP_NAME:
 215         g_value_set_string (value, priv->name);
 216         break;
 217       case PROP_CHANNELS:
 218         {
 219           GList *l, *channels = NULL;
 220           GPtrArray *array = g_ptr_array_new ();
 221
 222           if (priv->channels != NULL)
 223             channels =  priv->channels (self, priv->channels_user_data);
 224
 225           for (l = channels ; l != NULL; l = g_list_next (l))
 226             {
 227               TpProxy *channel = TP_PROXY (l->data);
 228               g_ptr_array_add (array,
 229                 (gpointer) tp_proxy_get_object_path (channel));
 230             }
 231           g_value_set_boxed (value, array);
 232           g_ptr_array_free (array, TRUE);
 233           break;
 234         }
 235       default:
 236         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
 237         break;
 238     }
 239 }
 240
 241 static void
 242 empathy_handler_class_init (EmpathyHandlerClass *klass)
 243 {
 244   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 245   GParamSpec *param_spec;
 246
 247   static TpDBusPropertiesMixinPropImpl client_props[] = {
 248     { "Interfaces", "interfaces", NULL },
 249     { NULL }
 250   };
 251   static TpDBusPropertiesMixinPropImpl client_handler_props[] = {
 252     { "HandlerChannelFilter", "channel-filter", NULL },
 253     { "HandledChannels", "channels", NULL },
 254     { "Capabilities", "capabilities", NULL },
 255     { NULL }
 256   };
 257   static TpDBusPropertiesMixinIfaceImpl prop_interfaces[] = {
 258     { TP_IFACE_CLIENT,
 259       tp_dbus_properties_mixin_getter_gobject_properties,
 260       NULL,
 261       client_props
 262     },
 263     { TP_IFACE_CLIENT_HANDLER,
 264       tp_dbus_properties_mixin_getter_gobject_properties,
 265       NULL,
 266       client_handler_props
 267     },
 268     { NULL }
 269   };
 270
 271   object_class->finalize = handler_finalize;
 272   object_class->dispose = handler_dispose;
 273   object_class->constructor = handler_constructor;
 274
 275   object_class->get_property = handler_get_property;
 276   object_class->set_property = handler_set_property;
 277
 278   param_spec = g_param_spec_boxed ("interfaces", "interfaces",
 279     "Available D-Bus interfaces",
 280     G_TYPE_STRV,
 281     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 282   g_object_class_install_property (object_class, PROP_INTERFACES, param_spec);
 283
 284   param_spec = g_param_spec_boxed ("channel-filter", "channel-filter",
 285     "Filter for channels this handles",
 286     TP_ARRAY_TYPE_CHANNEL_CLASS_LIST,
 287     G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY);
 288   g_object_class_install_property (object_class,
 289     PROP_CHANNEL_FILTER, param_spec);
 290
 291   param_spec = g_param_spec_boxed ("capabilities", "capabilities",
 292     "Filter for channels this handles",
 293     G_TYPE_STRV,
 294     G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY);
 295   g_object_class_install_property (object_class,
 296     PROP_CAPABILITIES, param_spec);
 297
 298   param_spec = g_param_spec_boxed ("channels", "channels",
 299     "List of channels we're handling",
 300     EMPATHY_ARRAY_TYPE_OBJECT,
 301     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
 302   g_object_class_install_property (object_class,
 303     PROP_CHANNELS, param_spec);
 304
 305   param_spec = g_param_spec_string ("name", "name",
 306     "The local name of the handler",
 307     NULL,
 308     G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY);
 309   g_object_class_install_property (object_class,
 310     PROP_NAME, param_spec);
 311
 312   g_type_class_add_private (object_class, sizeof (EmpathyHandlerPriv));
 313
 314   klass->dbus_props_class.interfaces = prop_interfaces;
 315   tp_dbus_properties_mixin_class_init (object_class,
 316     G_STRUCT_OFFSET (EmpathyHandlerClass, dbus_props_class));
 317 }
 318
 319 static void
 320 empathy_handler_init (EmpathyHandler *handler)
 321 {
 322   EmpathyHandlerPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (handler,
 323     EMPATHY_TYPE_HANDLER, EmpathyHandlerPriv);
 324
 325   handler->priv = priv;
 326 }
 327
 328 EmpathyHandler *
 329 empathy_handler_new (const gchar *name,
 330     GPtrArray *filters,
 331     GStrv capabilities)
 332 {
 333   return EMPATHY_HANDLER (
 334     g_object_new (EMPATHY_TYPE_HANDLER,
 335       "name", name,
 336       "channel-filter", filters,
 337       "capabilities", capabilities,
 338       NULL));
 339 }
 340
 341 static void
 342 empathy_handler_handle_channels (TpSvcClientHandler *self,
 343     const gchar *account_path,
 344     const gchar *connection_path,
 345     const GPtrArray *channels,
 346     const GPtrArray *requests_satisfied,
 347     guint64 timestamp,
 348     GHashTable *handler_info,
 349     DBusGMethodInvocation *context)
 350 {
 351   EmpathyHandler *handler = EMPATHY_HANDLER (self);
 352   EmpathyHandlerPriv *priv = GET_PRIV (handler);
 353   GError *error = NULL;
 354
 355   if (!priv->handle_channels)
 356     {
 357       error = g_error_new_literal (TP_ERRORS,
 358         TP_ERROR_NOT_AVAILABLE,
 359         "No handler function setup");
 360       goto error;
 361     }
 362
 363   if (!priv->handle_channels (handler, account_path, connection_path,
 364       channels, requests_satisfied, timestamp, handler_info,
 365       priv->handle_channels_user_data, &error))
 366     goto error;
 367
 368   tp_svc_client_handler_return_from_handle_channels (context);
 369   return;
 370
 371 error:
 372   dbus_g_method_return_error (context, error);
 373   g_error_free (error);
 374 }
 375
 376 static void
 377 empathy_handler_client_handler_iface_init (gpointer g_iface,
 378     gpointer g_iface_data)
 379 {
 380   TpSvcClientHandlerClass *klass = (TpSvcClientHandlerClass *) g_iface;
 381
 382   tp_svc_client_handler_implement_handle_channels (klass,
 383     empathy_handler_handle_channels);
 384 }
 385
 386 void
 387 empathy_handler_set_handle_channels_func (EmpathyHandler *handler,
 388     EmpathyHandlerHandleChannelsFunc *func,
 389     gpointer user_data)
 390 {
 391   EmpathyHandlerPriv *priv = GET_PRIV (handler);
 392
 393   priv->handle_channels = func;
 394   priv->handle_channels_user_data = user_data;
 395 }
 396
 397 void
 398 empathy_handler_set_channels_func (EmpathyHandler *handler,
 399     EmpathyHandlerChannelsFunc *func,
 400     gpointer user_data)
 401 {
 402   EmpathyHandlerPriv *priv = GET_PRIV (handler);
 403
 404   priv->channels = func;
 405   priv->channels_user_data = user_data;
 406 }
 407