libempathy/empathy-tp-file.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  * Copyright (C) 2007 Marco Barisione <marco@barisione.org>
   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  * Authors: Marco Barisione <marco@barisione.org>
  21  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  22  */
  23
  24 #include <config.h>
  25
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <sys/types.h>
  29 #include <sys/socket.h>
  30 #include <sys/un.h>
  31
  32 #include <glib/gi18n.h>
  33
  34 #include <gio/gio.h>
  35 #include <gio/gunixinputstream.h>
  36 #include <gio/gunixoutputstream.h>
  37
  38 #include <telepathy-glib/proxy-subclass.h>
  39
  40 #include "empathy-tp-file.h"
  41 #include "empathy-contact-factory.h"
  42 #include "empathy-marshal.h"
  43 #include "empathy-time.h"
  44 #include "empathy-utils.h"
  45
  46 #define DEBUG_FLAG EMPATHY_DEBUG_FT
  47 #include "empathy-debug.h"
  48
  49 /**
  50  * SECTION:empathy-tp-file
  51  * @short_description: File channel
  52  * @see_also: #EmpathyTpFile, #EmpathyContact, empathy_dispatcher_send_file()
  53  * @include: libempthy/empathy-tp-file.h
  54  *
  55  * The #EmpathyTpFile object represents a Telepathy file channel.
  56  */
  57
  58 /**
  59  * EMPATHY_TP_FILE_UNKNOWN_SIZE:
  60  *
  61  * Value used for the "size" or "estimated-size" properties when the size of
  62  * the transferred file is unknown.
  63  */
  64
  65 /* Functions to copy the content of a GInputStream to a GOutputStream */
  66
  67 #define N_BUFFERS 2
  68 #define BUFFER_SIZE 4096
  69
  70 typedef struct {
  71   GInputStream *in;
  72   GOutputStream *out;
  73   GCancellable  *cancellable;
  74   char *buff[N_BUFFERS]; /* the temporary buffers */
  75   gsize count[N_BUFFERS]; /* how many bytes are used in the buffers */
  76   gboolean is_full[N_BUFFERS]; /* whether the buffers contain data */
  77   gint curr_read; /* index of the buffer used for reading */
  78   gint curr_write; /* index of the buffer used for writing */
  79   gboolean is_reading; /* we are reading */
  80   gboolean is_writing; /* we are writing */
  81   guint n_closed; /* number of streams that have been closed */
  82   gint ref_count;
  83 } CopyData;
  84
  85 static void schedule_next (CopyData *copy);
  86
  87 static void
  88 copy_data_unref (CopyData *copy)
  89 {
  90   if (--copy->ref_count == 0)
  91     {
  92       gint i;
  93
  94       /* Free the data only if both the input and output streams have
  95        * been closed. */
  96       copy->n_closed++;
  97       if (copy->n_closed < 2)
  98         return;
  99
 100       if (copy->in != NULL)
 101         g_object_unref (copy->in);
 102
 103       if (copy->out != NULL)
 104         g_object_unref (copy->out);
 105
 106       for (i = 0; i < N_BUFFERS; i++)
 107         g_free (copy->buff[i]);
 108
 109       g_object_unref (copy->cancellable);
 110       g_free (copy);
 111     }
 112 }
 113
 114 static void
 115 io_error (CopyData *copy,
 116           GError *error)
 117 {
 118   g_cancellable_cancel (copy->cancellable);
 119
 120   if (error == NULL)
 121     g_warning ("I/O error");
 122   else if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
 123     ; /* Ignore cancellations */
 124   else
 125     g_warning ("I/O error: %d: %s\n", error->code, error->message);
 126
 127   if (copy->in != NULL)
 128     g_input_stream_close (copy->in, NULL, NULL);
 129
 130   if (copy->out != NULL)
 131     g_output_stream_close (copy->out, NULL, NULL);
 132
 133   copy_data_unref (copy);
 134 }
 135
 136 static void
 137 close_done (GObject *source_object,
 138             GAsyncResult *res,
 139             gpointer user_data)
 140 {
 141   CopyData *copy = user_data;
 142
 143   g_object_unref (source_object);
 144   copy_data_unref (copy);
 145 }
 146
 147 static void
 148 write_done_cb (GObject *source_object,
 149                GAsyncResult *res,
 150                gpointer user_data)
 151 {
 152   CopyData *copy = user_data;
 153   gssize count_write;
 154   GError *error = NULL;
 155
 156   count_write = g_output_stream_write_finish (copy->out, res, &error);
 157
 158   if (count_write <= 0)
 159     {
 160       io_error (copy, error);
 161       g_error_free (error);
 162       return;
 163     }
 164
 165   copy->is_full[copy->curr_write] = FALSE;
 166   copy->curr_write = (copy->curr_write + 1) % N_BUFFERS;
 167   copy->is_writing = FALSE;
 168
 169   schedule_next (copy);
 170 }
 171
 172 static void
 173 read_done_cb (GObject *source_object,
 174               GAsyncResult *res,
 175               gpointer user_data)
 176 {
 177   CopyData *copy = user_data;
 178   gssize count_read;
 179   GError *error = NULL;
 180
 181   count_read = g_input_stream_read_finish (copy->in, res, &error);
 182
 183   if (count_read == 0)
 184     {
 185       g_input_stream_close_async (copy->in, 0, copy->cancellable,
 186           close_done, copy);
 187       copy->in = NULL;
 188     }
 189   else if (count_read < 0)
 190     {
 191       io_error (copy, error);
 192       g_error_free (error);
 193       return;
 194     }
 195
 196   copy->count[copy->curr_read] = count_read;
 197   copy->is_full[copy->curr_read] = TRUE;
 198   copy->curr_read = (copy->curr_read + 1) % N_BUFFERS;
 199   copy->is_reading = FALSE;
 200
 201   schedule_next (copy);
 202 }
 203
 204 static void
 205 schedule_next (CopyData *copy)
 206 {
 207   if (copy->in != NULL &&
 208       !copy->is_reading &&
 209       !copy->is_full[copy->curr_read])
 210     {
 211       /* We are not reading and the current buffer is empty, so
 212        * start an async read. */
 213       copy->is_reading = TRUE;
 214       g_input_stream_read_async (copy->in,
 215           copy->buff[copy->curr_read],
 216           BUFFER_SIZE, 0, copy->cancellable,
 217           read_done_cb, copy);
 218     }
 219
 220   if (!copy->is_writing &&
 221       copy->is_full[copy->curr_write])
 222     {
 223       if (copy->count[copy->curr_write] == 0)
 224         {
 225           /* The last read on the buffer read 0 bytes, this
 226            * means that we got an EOF, so we can close
 227            * the output channel. */
 228           g_output_stream_close_async (copy->out, 0,
 229               copy->cancellable,
 230               close_done, copy);
 231       copy->out = NULL;
 232         }
 233       else
 234         {
 235           /* We are not writing and the current buffer contains
 236            * data, so start an async write. */
 237           copy->is_writing = TRUE;
 238           g_output_stream_write_async (copy->out,
 239               copy->buff[copy->curr_write],
 240               copy->count[copy->curr_write],
 241               0, copy->cancellable,
 242               write_done_cb, copy);
 243         }
 244     }
 245 }
 246
 247 static void
 248 copy_stream (GInputStream *in,
 249              GOutputStream *out,
 250              GCancellable *cancellable)
 251 {
 252   CopyData *copy;
 253   gint i;
 254
 255   g_return_if_fail (in != NULL);
 256   g_return_if_fail (out != NULL);
 257
 258   copy = g_new0 (CopyData, 1);
 259   copy->in = g_object_ref (in);
 260   copy->out = g_object_ref (out);
 261   copy->ref_count = 1;
 262
 263   if (cancellable != NULL)
 264     copy->cancellable = g_object_ref (cancellable);
 265   else
 266     copy->cancellable = g_cancellable_new ();
 267
 268   for (i = 0; i < N_BUFFERS; i++)
 269     copy->buff[i] = g_malloc (BUFFER_SIZE);
 270
 271   schedule_next (copy);
 272 }
 273
 274 /* EmpathyTpFile object */
 275
 276 struct _EmpathyTpFilePriv {
 277   EmpathyContactFactory *factory;
 278   gchar *id;
 279   MissionControl *mc;
 280   TpChannel *channel;
 281
 282   EmpathyContact *contact;
 283   GInputStream *in_stream;
 284   GOutputStream *out_stream;
 285
 286   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer D-Bus properties */
 287   EmpFileTransferState state;
 288   gchar *content_type;
 289   gchar *filename;
 290   guint64 size;
 291   EmpFileHashType content_hash_type;
 292   gchar *content_hash;
 293   gchar *description;
 294   guint64 transferred_bytes;
 295
 296   gboolean incoming;
 297   EmpFileTransferStateChangeReason state_change_reason;
 298   time_t start_time;
 299   gchar *unix_socket_path;
 300   GCancellable *cancellable;
 301 };
 302
 303 enum {
 304   PROP_0,
 305   PROP_CHANNEL,
 306   PROP_STATE,
 307   PROP_INCOMING,
 308   PROP_FILENAME,
 309   PROP_SIZE,
 310   PROP_CONTENT_TYPE,
 311   PROP_TRANSFERRED_BYTES,
 312   PROP_CONTENT_HASH_TYPE,
 313   PROP_CONTENT_HASH,
 314 };
 315
 316 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 317
 318 static void
 319 empathy_tp_file_init (EmpathyTpFile *tp_file)
 320 {
 321   EmpathyTpFilePriv *priv;
 322
 323   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 324       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 325
 326   tp_file->priv = priv;
 327 }
 328
 329 static void
 330 tp_file_destroy_cb (TpChannel *file_channel,
 331                     EmpathyTpFile *tp_file)
 332 {
 333   DEBUG ("Channel Closed or CM crashed");
 334
 335   g_object_unref (tp_file->priv->channel);
 336   tp_file->priv->channel = NULL;
 337 }
 338
 339 static void
 340 tp_file_finalize (GObject *object)
 341 {
 342   EmpathyTpFile *tp_file;
 343
 344   tp_file = EMPATHY_TP_FILE (object);
 345
 346   if (tp_file->priv->channel)
 347     {
 348       DEBUG ("Closing channel..");
 349       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 350           tp_file_destroy_cb, object);
 351       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 352           NULL, NULL);
 353       g_object_unref (tp_file->priv->channel);
 354     }
 355
 356   if (tp_file->priv->factory)
 357     {
 358       g_object_unref (tp_file->priv->factory);
 359     }
 360   if (tp_file->priv->mc)
 361     {
 362       g_object_unref (tp_file->priv->mc);
 363     }
 364
 365   g_free (tp_file->priv->id);
 366   g_free (tp_file->priv->filename);
 367   g_free (tp_file->priv->unix_socket_path);
 368   g_free (tp_file->priv->description);
 369   g_free (tp_file->priv->content_hash);
 370   g_free (tp_file->priv->content_type);
 371
 372   if (tp_file->priv->in_stream)
 373     g_object_unref (tp_file->priv->in_stream);
 374
 375   if (tp_file->priv->out_stream)
 376     g_object_unref (tp_file->priv->out_stream);
 377
 378   if (tp_file->priv->contact)
 379     g_object_unref (tp_file->priv->contact);
 380
 381   if (tp_file->priv->cancellable)
 382     g_object_unref (tp_file->priv->cancellable);
 383
 384   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 385 }
 386
 387 static void
 388 tp_file_closed_cb (TpChannel *file_channel,
 389                    EmpathyTpFile *tp_file,
 390                    GObject *weak_object)
 391 {
 392   /* The channel is closed, do just like if the proxy was destroyed */
 393   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 394       tp_file_destroy_cb,
 395       tp_file);
 396   tp_file_destroy_cb (file_channel, tp_file);
 397 }
 398
 399 static gint
 400 _get_local_socket (EmpathyTpFile *tp_file)
 401 {
 402   gint fd;
 403   size_t path_len;
 404   struct sockaddr_un addr;
 405
 406   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 407     return -1;
 408
 409   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 410   if (fd < 0)
 411     return -1;
 412
 413   memset (&addr, 0, sizeof (addr));
 414   addr.sun_family = AF_UNIX;
 415   path_len = strlen (tp_file->priv->unix_socket_path);
 416   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 417
 418   if (connect (fd, (struct sockaddr*) &addr,
 419       sizeof (addr)) < 0)
 420     {
 421       close (fd);
 422       return -1;
 423     }
 424
 425   return fd;
 426 }
 427
 428 static void
 429 send_tp_file (EmpathyTpFile *tp_file)
 430 {
 431   gint socket_fd;
 432   GOutputStream *socket_stream;
 433
 434   DEBUG ("Sending file content: filename=%s",
 435       tp_file->priv->filename);
 436
 437   g_return_if_fail (tp_file->priv->in_stream);
 438
 439   socket_fd = _get_local_socket (tp_file);
 440   if (socket_fd < 0)
 441     {
 442       DEBUG ("failed to get local socket fd");
 443       return;
 444     }
 445   DEBUG ("got local socket fd");
 446   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 447
 448   tp_file->priv->cancellable = g_cancellable_new ();
 449
 450   copy_stream (tp_file->priv->in_stream, socket_stream,
 451       tp_file->priv->cancellable);
 452
 453   g_object_unref (socket_stream);
 454 }
 455
 456 static void
 457 receive_tp_file (EmpathyTpFile *tp_file)
 458 {
 459   GInputStream *socket_stream;
 460   gint socket_fd;
 461
 462   socket_fd = _get_local_socket (tp_file);
 463
 464   if (socket_fd < 0)
 465     return;
 466
 467   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 468
 469   tp_file->priv->cancellable = g_cancellable_new ();
 470
 471   copy_stream (socket_stream, tp_file->priv->out_stream,
 472       tp_file->priv->cancellable);
 473
 474   g_object_unref (socket_stream);
 475 }
 476
 477 static void
 478 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 479                           EmpFileTransferState state,
 480                           EmpFileTransferStateChangeReason reason,
 481                           EmpathyTpFile *tp_file)
 482 {
 483   DEBUG ("File transfer state changed: filename=%s, "
 484       "old state=%u, state=%u, reason=%u",
 485       tp_file->priv->filename, tp_file->priv->state, state, reason);
 486
 487   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 488     tp_file->priv->start_time = empathy_time_get_current ();
 489
 490   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 491       state, tp_file->priv->incoming ? "yes" : "no",
 492       tp_file->priv->in_stream ? "present" : "not present",
 493       tp_file->priv->out_stream ? "present" : "not present");
 494
 495   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 496       tp_file->priv->in_stream)
 497     send_tp_file (tp_file);
 498   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 499       tp_file->priv->out_stream)
 500     receive_tp_file (tp_file);
 501
 502   tp_file->priv->state = state;
 503   tp_file->priv->state_change_reason = reason;
 504
 505   g_object_notify (G_OBJECT (tp_file), "state");
 506 }
 507
 508 static void
 509 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 510                                       guint64 count,
 511                                       EmpathyTpFile *tp_file,
 512                                       GObject *weak_object)
 513 {
 514   if (tp_file->priv->transferred_bytes == count)
 515     return;
 516
 517   tp_file->priv->transferred_bytes = count;
 518
 519   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 520 }
 521
 522 static GObject *
 523 tp_file_constructor (GType type,
 524                      guint n_props,
 525                      GObjectConstructParam *props)
 526 {
 527   GObject *file_obj;
 528   EmpathyTpFile *tp_file;
 529   TpHandle handle;
 530   GHashTable *properties;
 531   McAccount *account;
 532   GValue *requested;
 533
 534   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 535       n_props, props);
 536
 537   tp_file = EMPATHY_TP_FILE (file_obj);
 538
 539   tp_file->priv->factory = empathy_contact_factory_new ();
 540   tp_file->priv->mc = empathy_mission_control_new ();
 541
 542   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 543       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 544       tp_file,
 545       NULL, NULL, NULL);
 546
 547   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 548       TP_PROXY (tp_file->priv->channel),
 549       (emp_cli_channel_type_file_transfer_signal_callback_file_transfer_state_changed)
 550           tp_file_state_changed_cb,
 551       tp_file,
 552       NULL, NULL, NULL);
 553
 554   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 555       TP_PROXY (tp_file->priv->channel),
 556       (emp_cli_channel_type_file_transfer_signal_callback_transferred_bytes_changed)
 557           tp_file_transferred_bytes_changed_cb,
 558       tp_file,
 559       NULL, NULL, NULL);
 560
 561   account = empathy_channel_get_account (tp_file->priv->channel);
 562
 563   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 564   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 565       tp_file->priv->factory, account, (guint) handle);
 566
 567   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 568       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 569
 570   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 571       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 572
 573   tp_file->priv->size = g_value_get_uint64 (
 574       g_hash_table_lookup (properties, "Size"));
 575
 576   tp_file->priv->state = g_value_get_uint (
 577       g_hash_table_lookup (properties, "State"));
 578
 579   tp_file->priv->state_change_reason =
 580       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 581
 582   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 583       g_hash_table_lookup (properties, "TransferredBytes"));
 584
 585   tp_file->priv->filename = g_value_dup_string (
 586       g_hash_table_lookup (properties, "Filename"));
 587
 588   tp_file->priv->content_hash = g_value_dup_string (
 589       g_hash_table_lookup (properties, "ContentHash"));
 590
 591   tp_file->priv->content_hash_type = g_value_get_uint (
 592       g_hash_table_lookup (properties, "ContentHashType"));
 593
 594   tp_file->priv->content_type = g_value_dup_string (
 595       g_hash_table_lookup (properties, "ContentType"));
 596
 597   tp_file->priv->description = g_value_dup_string (
 598       g_hash_table_lookup (properties, "Description"));
 599
 600   tp_file->priv->incoming = !g_value_get_boolean (requested);
 601
 602   g_hash_table_destroy (properties);
 603   g_object_unref (account);
 604   g_value_unset (requested);
 605
 606   return file_obj;
 607 }
 608
 609 static void
 610 tp_file_get_property (GObject *object,
 611                       guint param_id,
 612                       GValue *value,
 613                       GParamSpec *pspec)
 614 {
 615   EmpathyTpFile *tp_file;
 616
 617   tp_file = EMPATHY_TP_FILE (object);
 618
 619   switch (param_id)
 620     {
 621       case PROP_CHANNEL:
 622         g_value_set_object (value, tp_file->priv->channel);
 623         break;
 624       case PROP_INCOMING:
 625         g_value_set_boolean (value, tp_file->priv->incoming);
 626         break;
 627       case PROP_STATE:
 628         g_value_set_uint (value, tp_file->priv->state);
 629         break;
 630       case PROP_CONTENT_TYPE:
 631         g_value_set_string (value, tp_file->priv->content_type);
 632         break;
 633       case PROP_FILENAME:
 634         g_value_set_string (value, tp_file->priv->filename);
 635         break;
 636       case PROP_SIZE:
 637         g_value_set_uint64 (value, tp_file->priv->size);
 638         break;
 639       case PROP_CONTENT_HASH_TYPE:
 640         g_value_set_uint (value, tp_file->priv->content_hash_type);
 641         break;
 642       case PROP_CONTENT_HASH:
 643         g_value_set_string (value, tp_file->priv->content_hash);
 644         break;
 645       case PROP_TRANSFERRED_BYTES:
 646         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 647         break;
 648       default:
 649         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 650         break;
 651     };
 652 }
 653
 654 static void
 655 tp_file_channel_set_dbus_property (gpointer proxy,
 656                                    const gchar *property,
 657                                    const GValue *value)
 658 {
 659         DEBUG ("Setting %s property", property);
 660         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 661             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 662             NULL, NULL, NULL, NULL);
 663 }
 664
 665
 666 static void
 667 tp_file_set_property (GObject *object,
 668                       guint param_id,
 669                       const GValue *value,
 670                       GParamSpec *pspec)
 671 {
 672   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 673   switch (param_id)
 674     {
 675       case PROP_CHANNEL:
 676         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 677         break;
 678       case PROP_STATE:
 679         tp_file->priv->state = g_value_get_uint (value);
 680         break;
 681       case PROP_INCOMING:
 682         tp_file->priv->incoming = g_value_get_boolean (value);
 683         break;
 684       case PROP_FILENAME:
 685         g_free (tp_file->priv->filename);
 686         tp_file->priv->filename = g_value_dup_string (value);
 687         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 688             "Filename", value);
 689         break;
 690       case PROP_SIZE:
 691         tp_file->priv->size = g_value_get_uint64 (value);
 692         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 693             "Size", value);
 694         break;
 695       case PROP_CONTENT_TYPE:
 696         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 697             "ContentType", value);
 698         g_free (tp_file->priv->content_type);
 699         tp_file->priv->content_type = g_value_dup_string (value);
 700         break;
 701       case PROP_CONTENT_HASH:
 702         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 703             "ContentHash", value);
 704         g_free (tp_file->priv->content_hash);
 705         tp_file->priv->content_hash = g_value_dup_string (value);
 706         break;
 707       default:
 708         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 709         break;
 710     };
 711 }
 712
 713 /**
 714  * empathy_tp_file_new:
 715  * @channel: a Telepathy channel
 716  *
 717  * Creates a new #EmpathyTpFile wrapping @channel.
 718  *
 719  * Returns: a new #EmpathyTpFile
 720  */
 721 EmpathyTpFile *
 722 empathy_tp_file_new (TpChannel *channel)
 723 {
 724   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 725
 726   return g_object_new (EMPATHY_TYPE_TP_FILE,
 727       "channel", channel,
 728       NULL);
 729 }
 730
 731 /**
 732  * empathy_tp_file_get_id:
 733  * @tp_file: an #EmpathyTpFile
 734  *
 735  * Returns the ID of @tp_file.
 736  *
 737  * Returns: the ID
 738  */
 739 const gchar *
 740 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 741 {
 742   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 743
 744   return tp_file->priv->id;
 745 }
 746
 747 /**
 748  * empathy_tp_file_get_channel
 749  * @tp_file: an #EmpathyTpFile
 750  *
 751  * Returns the Telepathy file transfer channel
 752  *
 753  * Returns: the #TpChannel
 754  */
 755 TpChannel *
 756 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 757 {
 758   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 759
 760   return tp_file->priv->channel;
 761 }
 762
 763 static void
 764 tp_file_method_cb (TpProxy *proxy,
 765                    const GValue *address,
 766                    const GError *error,
 767                    gpointer user_data,
 768                    GObject *weak_object)
 769 {
 770   EmpathyTpFile *tp_file = (EmpathyTpFile *) weak_object;
 771
 772   if (error)
 773     {
 774       DEBUG ("Error: %s", error->message);
 775       return;
 776     }
 777
 778   if (tp_file->priv->unix_socket_path)
 779     g_free (tp_file->priv->unix_socket_path);
 780
 781   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 782
 783   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 784 }
 785
 786
 787 /**
 788  * empathy_tp_file_accept:
 789  * @tp_file: an #EmpathyTpFile
 790  * @offset: position where to start the transfer
 791  * @gfile: a #GFile where to write transfered data
 792  * @error: a #GError set if there is an error when opening @gfile
 793  *
 794  * Accepts a file transfer that's in the "local pending" state (i.e.
 795  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 796  */
 797 void
 798 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 799                         guint64 offset,
 800                         GFile *gfile,
 801                         GError **error)
 802 {
 803   GValue nothing = { 0 };
 804
 805   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 806   g_return_if_fail (G_IS_FILE (gfile));
 807
 808   tp_file->priv->out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL,
 809         FALSE, 0, NULL, error));
 810   if (error && *error)
 811     return;
 812
 813   tp_file->priv->filename = g_file_get_basename (gfile);
 814   g_object_notify (G_OBJECT (tp_file), "filename");
 815
 816   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 817
 818   g_value_init (&nothing, G_TYPE_STRING);
 819   g_value_set_static_string (&nothing, "");
 820
 821   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 822       tp_file->priv->channel),
 823       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 824       &nothing, offset, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 825 }
 826
 827 /**
 828  * empathy_tp_file_offer:
 829  * @tp_file: an #EmpathyTpFile
 830  * @gfile: a #GFile where to read the data to transfer
 831  * @error: a #GError set if there is an error when opening @gfile
 832  *
 833  * Offers a file transfer that's in the "not offered" state (i.e.
 834  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 835  */
 836 void
 837 empathy_tp_file_offer (EmpathyTpFile *tp_file, GFile *gfile, GError **error)
 838 {
 839   GValue nothing = { 0 };
 840
 841   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 842
 843   tp_file->priv->in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, error));
 844   if (error && *error)
 845         return;
 846
 847   g_value_init (&nothing, G_TYPE_STRING);
 848   g_value_set_static_string (&nothing, "");
 849
 850   emp_cli_channel_type_file_transfer_call_provide_file (
 851       TP_PROXY (tp_file->priv->channel), -1,
 852       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 853       &nothing, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 854 }
 855
 856 EmpathyContact *
 857 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 858 {
 859   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 860   return tp_file->priv->contact;
 861 }
 862
 863 const gchar *
 864 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 865 {
 866   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 867   return tp_file->priv->filename;
 868 }
 869
 870 gboolean
 871 empathy_tp_file_is_incoming (EmpathyTpFile *tp_file)
 872 {
 873   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 874   return tp_file->priv->incoming;
 875 }
 876
 877 EmpFileTransferState
 878 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 879 {
 880   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 881       EMP_FILE_TRANSFER_STATE_NONE);
 882   return tp_file->priv->state;
 883 }
 884
 885 EmpFileTransferStateChangeReason
 886 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 887 {
 888   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 889       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 890
 891   return tp_file->priv->state_change_reason;
 892 }
 893
 894 guint64
 895 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 896 {
 897   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 898       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 899   return tp_file->priv->size;
 900 }
 901
 902 guint64
 903 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 904 {
 905   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 906   return tp_file->priv->transferred_bytes;
 907 }
 908
 909 gint
 910 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 911 {
 912   time_t curr_time, elapsed_time;
 913   gdouble time_per_byte;
 914   gdouble remaining_time;
 915
 916   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 917
 918   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 919     return -1;
 920
 921   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 922     return 0;
 923
 924   curr_time = empathy_time_get_current ();
 925   elapsed_time = curr_time - tp_file->priv->start_time;
 926   time_per_byte = (gdouble) elapsed_time /
 927       (gdouble) tp_file->priv->transferred_bytes;
 928   remaining_time = time_per_byte * (tp_file->priv->size -
 929       tp_file->priv->transferred_bytes);
 930
 931   return (gint) remaining_time;
 932 }
 933
 934 void
 935 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 936 {
 937   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 938
 939   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 940
 941   g_cancellable_cancel (tp_file->priv->cancellable);
 942 }
 943
 944 static void
 945 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 946 {
 947   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 948
 949   object_class->finalize = tp_file_finalize;
 950   object_class->constructor = tp_file_constructor;
 951   object_class->get_property = tp_file_get_property;
 952   object_class->set_property = tp_file_set_property;
 953
 954   /* Construct-only properties */
 955   g_object_class_install_property (object_class,
 956       PROP_CHANNEL,
 957       g_param_spec_object ("channel",
 958           "telepathy channel",
 959           "The file transfer channel",
 960           TP_TYPE_CHANNEL,
 961           G_PARAM_READWRITE |
 962           G_PARAM_CONSTRUCT_ONLY));
 963
 964   g_object_class_install_property (object_class,
 965       PROP_STATE,
 966       g_param_spec_uint ("state",
 967           "state of the transfer",
 968           "The file transfer state",
 969           0,
 970           G_MAXUINT,
 971           G_MAXUINT,
 972           G_PARAM_READWRITE |
 973           G_PARAM_CONSTRUCT));
 974
 975   g_object_class_install_property (object_class,
 976       PROP_INCOMING,
 977       g_param_spec_boolean ("incoming",
 978           "incoming",
 979           "Whether the transfer is incoming",
 980           FALSE,
 981           G_PARAM_READWRITE |
 982           G_PARAM_CONSTRUCT));
 983
 984   g_object_class_install_property (object_class,
 985       PROP_FILENAME,
 986       g_param_spec_string ("filename",
 987           "name of the transfer",
 988           "The file transfer filename",
 989           "",
 990           G_PARAM_READWRITE));
 991
 992   g_object_class_install_property (object_class,
 993       PROP_SIZE,
 994       g_param_spec_uint64 ("size",
 995           "size of the file",
 996           "The file transfer size",
 997           0,
 998           G_MAXUINT64,
 999           G_MAXUINT64,
1000           G_PARAM_READWRITE));
1001
1002   g_object_class_install_property (object_class,
1003       PROP_CONTENT_TYPE,
1004       g_param_spec_string ("content-type",
1005           "file transfer content-type",
1006           "The file transfer content-type",
1007           "",
1008           G_PARAM_READWRITE));
1009
1010   g_object_class_install_property (object_class,
1011       PROP_CONTENT_HASH_TYPE,
1012       g_param_spec_uint ("content-hash-type",
1013           "file transfer hash type",
1014           "The type of the file transfer hash",
1015           0,
1016           G_MAXUINT,
1017           0,
1018           G_PARAM_READWRITE));
1019
1020   g_object_class_install_property (object_class,
1021       PROP_CONTENT_HASH,
1022       g_param_spec_string ("content-hash",
1023           "file transfer hash",
1024           "The hash of the transfer's contents",
1025           "",
1026           G_PARAM_READWRITE));
1027
1028   g_object_class_install_property (object_class,
1029       PROP_TRANSFERRED_BYTES,
1030       g_param_spec_uint64 ("transferred-bytes",
1031           "bytes transferred",
1032           "The number of bytes transferred",
1033           0,
1034           G_MAXUINT64,
1035           0,
1036           G_PARAM_READWRITE));
1037
1038   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1039 }