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   GFile *gfile;
 284   GInputStream *in_stream;
 285   GOutputStream *out_stream;
 286
 287   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer D-Bus properties */
 288   EmpFileTransferState state;
 289   gchar *content_type;
 290   gchar *filename;
 291   guint64 size;
 292   EmpFileHashType content_hash_type;
 293   gchar *content_hash;
 294   gchar *description;
 295   guint64 transferred_bytes;
 296
 297   gboolean incoming;
 298   EmpFileTransferStateChangeReason state_change_reason;
 299   time_t start_time;
 300   gchar *unix_socket_path;
 301   GCancellable *cancellable;
 302 };
 303
 304 enum {
 305   PROP_0,
 306   PROP_CHANNEL,
 307   PROP_STATE,
 308   PROP_INCOMING,
 309   PROP_FILENAME,
 310   PROP_SIZE,
 311   PROP_CONTENT_TYPE,
 312   PROP_TRANSFERRED_BYTES,
 313   PROP_CONTENT_HASH_TYPE,
 314   PROP_CONTENT_HASH,
 315 };
 316
 317 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 318
 319 static void
 320 empathy_tp_file_init (EmpathyTpFile *tp_file)
 321 {
 322   EmpathyTpFilePriv *priv;
 323
 324   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 325       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 326
 327   tp_file->priv = priv;
 328 }
 329
 330 static void
 331 tp_file_destroy_cb (TpChannel *file_channel,
 332                     EmpathyTpFile *tp_file)
 333 {
 334   DEBUG ("Channel Closed or CM crashed");
 335
 336   g_object_unref (tp_file->priv->channel);
 337   tp_file->priv->channel = NULL;
 338 }
 339
 340 static void
 341 tp_file_finalize (GObject *object)
 342 {
 343   EmpathyTpFile *tp_file;
 344
 345   tp_file = EMPATHY_TP_FILE (object);
 346
 347   if (tp_file->priv->channel)
 348     {
 349       DEBUG ("Closing channel..");
 350       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 351           tp_file_destroy_cb, object);
 352       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 353           NULL, NULL);
 354       g_object_unref (tp_file->priv->channel);
 355     }
 356
 357   if (tp_file->priv->factory)
 358     {
 359       g_object_unref (tp_file->priv->factory);
 360     }
 361   if (tp_file->priv->mc)
 362     {
 363       g_object_unref (tp_file->priv->mc);
 364     }
 365
 366   g_free (tp_file->priv->id);
 367   g_free (tp_file->priv->filename);
 368   g_free (tp_file->priv->unix_socket_path);
 369   g_free (tp_file->priv->description);
 370   g_free (tp_file->priv->content_hash);
 371   g_free (tp_file->priv->content_type);
 372
 373   if (tp_file->priv->gfile)
 374     g_object_unref (tp_file->priv->gfile);
 375
 376   if (tp_file->priv->in_stream)
 377     g_object_unref (tp_file->priv->in_stream);
 378
 379   if (tp_file->priv->out_stream)
 380     g_object_unref (tp_file->priv->out_stream);
 381
 382   if (tp_file->priv->contact)
 383     g_object_unref (tp_file->priv->contact);
 384
 385   if (tp_file->priv->cancellable)
 386     g_object_unref (tp_file->priv->cancellable);
 387
 388   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 389 }
 390
 391 static void
 392 tp_file_closed_cb (TpChannel *file_channel,
 393                    EmpathyTpFile *tp_file,
 394                    GObject *weak_object)
 395 {
 396   /* The channel is closed, do just like if the proxy was destroyed */
 397   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 398       tp_file_destroy_cb,
 399       tp_file);
 400   tp_file_destroy_cb (file_channel, tp_file);
 401 }
 402
 403 static gint
 404 _get_local_socket (EmpathyTpFile *tp_file)
 405 {
 406   gint fd;
 407   size_t path_len;
 408   struct sockaddr_un addr;
 409
 410   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 411     return -1;
 412
 413   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 414   if (fd < 0)
 415     return -1;
 416
 417   memset (&addr, 0, sizeof (addr));
 418   addr.sun_family = AF_UNIX;
 419   path_len = strlen (tp_file->priv->unix_socket_path);
 420   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 421
 422   if (connect (fd, (struct sockaddr*) &addr,
 423       sizeof (addr)) < 0)
 424     {
 425       close (fd);
 426       return -1;
 427     }
 428
 429   return fd;
 430 }
 431
 432 static void
 433 send_tp_file (EmpathyTpFile *tp_file)
 434 {
 435   gint socket_fd;
 436   GOutputStream *socket_stream;
 437
 438   DEBUG ("Sending file content: filename=%s",
 439       tp_file->priv->filename);
 440
 441   g_return_if_fail (tp_file->priv->in_stream);
 442
 443   socket_fd = _get_local_socket (tp_file);
 444   if (socket_fd < 0)
 445     {
 446       DEBUG ("failed to get local socket fd");
 447       return;
 448     }
 449   DEBUG ("got local socket fd");
 450   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 451
 452   tp_file->priv->cancellable = g_cancellable_new ();
 453
 454   copy_stream (tp_file->priv->in_stream, socket_stream,
 455       tp_file->priv->cancellable);
 456
 457   g_object_unref (socket_stream);
 458 }
 459
 460 static void
 461 receive_tp_file (EmpathyTpFile *tp_file)
 462 {
 463   GInputStream *socket_stream;
 464   gint socket_fd;
 465
 466   socket_fd = _get_local_socket (tp_file);
 467
 468   if (socket_fd < 0)
 469     return;
 470
 471   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 472
 473   tp_file->priv->cancellable = g_cancellable_new ();
 474
 475   copy_stream (socket_stream, tp_file->priv->out_stream,
 476       tp_file->priv->cancellable);
 477
 478   g_object_unref (socket_stream);
 479 }
 480
 481 static void
 482 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 483                           EmpFileTransferState state,
 484                           EmpFileTransferStateChangeReason reason,
 485                           EmpathyTpFile *tp_file)
 486 {
 487   DEBUG ("File transfer state changed: filename=%s, "
 488       "old state=%u, state=%u, reason=%u",
 489       tp_file->priv->filename, tp_file->priv->state, state, reason);
 490
 491   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 492     tp_file->priv->start_time = empathy_time_get_current ();
 493
 494   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 495       state, tp_file->priv->incoming ? "yes" : "no",
 496       tp_file->priv->in_stream ? "present" : "not present",
 497       tp_file->priv->out_stream ? "present" : "not present");
 498
 499   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 500       tp_file->priv->in_stream)
 501     send_tp_file (tp_file);
 502   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 503       tp_file->priv->out_stream)
 504     receive_tp_file (tp_file);
 505
 506   tp_file->priv->state = state;
 507   tp_file->priv->state_change_reason = reason;
 508
 509   g_object_notify (G_OBJECT (tp_file), "state");
 510 }
 511
 512 static void
 513 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 514                                       guint64 count,
 515                                       EmpathyTpFile *tp_file,
 516                                       GObject *weak_object)
 517 {
 518   if (tp_file->priv->transferred_bytes == count)
 519     return;
 520
 521   tp_file->priv->transferred_bytes = count;
 522
 523   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 524 }
 525
 526 static GObject *
 527 tp_file_constructor (GType type,
 528                      guint n_props,
 529                      GObjectConstructParam *props)
 530 {
 531   GObject *file_obj;
 532   EmpathyTpFile *tp_file;
 533   TpHandle handle;
 534   GHashTable *properties;
 535   McAccount *account;
 536   GValue *requested;
 537
 538   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 539       n_props, props);
 540
 541   tp_file = EMPATHY_TP_FILE (file_obj);
 542
 543   tp_file->priv->factory = empathy_contact_factory_new ();
 544   tp_file->priv->mc = empathy_mission_control_new ();
 545
 546   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 547       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 548       tp_file,
 549       NULL, NULL, NULL);
 550
 551   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 552       TP_PROXY (tp_file->priv->channel),
 553       (emp_cli_channel_type_file_transfer_signal_callback_file_transfer_state_changed)
 554           tp_file_state_changed_cb,
 555       tp_file,
 556       NULL, NULL, NULL);
 557
 558   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 559       TP_PROXY (tp_file->priv->channel),
 560       (emp_cli_channel_type_file_transfer_signal_callback_transferred_bytes_changed)
 561           tp_file_transferred_bytes_changed_cb,
 562       tp_file,
 563       NULL, NULL, NULL);
 564
 565   account = empathy_channel_get_account (tp_file->priv->channel);
 566
 567   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 568   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 569       tp_file->priv->factory, account, (guint) handle);
 570
 571   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 572       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 573
 574   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 575       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 576
 577   tp_file->priv->size = g_value_get_uint64 (
 578       g_hash_table_lookup (properties, "Size"));
 579
 580   tp_file->priv->state = g_value_get_uint (
 581       g_hash_table_lookup (properties, "State"));
 582
 583   tp_file->priv->state_change_reason =
 584       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 585
 586   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 587       g_hash_table_lookup (properties, "TransferredBytes"));
 588
 589   tp_file->priv->filename = g_value_dup_string (
 590       g_hash_table_lookup (properties, "Filename"));
 591
 592   tp_file->priv->content_hash = g_value_dup_string (
 593       g_hash_table_lookup (properties, "ContentHash"));
 594
 595   tp_file->priv->content_hash_type = g_value_get_uint (
 596       g_hash_table_lookup (properties, "ContentHashType"));
 597
 598   tp_file->priv->content_type = g_value_dup_string (
 599       g_hash_table_lookup (properties, "ContentType"));
 600
 601   tp_file->priv->description = g_value_dup_string (
 602       g_hash_table_lookup (properties, "Description"));
 603
 604   tp_file->priv->incoming = !g_value_get_boolean (requested);
 605
 606   g_hash_table_destroy (properties);
 607   g_object_unref (account);
 608   g_value_unset (requested);
 609
 610   return file_obj;
 611 }
 612
 613 static void
 614 tp_file_get_property (GObject *object,
 615                       guint param_id,
 616                       GValue *value,
 617                       GParamSpec *pspec)
 618 {
 619   EmpathyTpFile *tp_file;
 620
 621   tp_file = EMPATHY_TP_FILE (object);
 622
 623   switch (param_id)
 624     {
 625       case PROP_CHANNEL:
 626         g_value_set_object (value, tp_file->priv->channel);
 627         break;
 628       case PROP_INCOMING:
 629         g_value_set_boolean (value, tp_file->priv->incoming);
 630         break;
 631       case PROP_STATE:
 632         g_value_set_uint (value, tp_file->priv->state);
 633         break;
 634       case PROP_CONTENT_TYPE:
 635         g_value_set_string (value, tp_file->priv->content_type);
 636         break;
 637       case PROP_FILENAME:
 638         g_value_set_string (value, tp_file->priv->filename);
 639         break;
 640       case PROP_SIZE:
 641         g_value_set_uint64 (value, tp_file->priv->size);
 642         break;
 643       case PROP_CONTENT_HASH_TYPE:
 644         g_value_set_uint (value, tp_file->priv->content_hash_type);
 645         break;
 646       case PROP_CONTENT_HASH:
 647         g_value_set_string (value, tp_file->priv->content_hash);
 648         break;
 649       case PROP_TRANSFERRED_BYTES:
 650         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 651         break;
 652       default:
 653         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 654         break;
 655     };
 656 }
 657
 658 static void
 659 tp_file_channel_set_dbus_property (gpointer proxy,
 660                                    const gchar *property,
 661                                    const GValue *value)
 662 {
 663         DEBUG ("Setting %s property", property);
 664         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 665             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 666             NULL, NULL, NULL, NULL);
 667 }
 668
 669
 670 static void
 671 tp_file_set_property (GObject *object,
 672                       guint param_id,
 673                       const GValue *value,
 674                       GParamSpec *pspec)
 675 {
 676   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 677   switch (param_id)
 678     {
 679       case PROP_CHANNEL:
 680         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 681         break;
 682       case PROP_STATE:
 683         tp_file->priv->state = g_value_get_uint (value);
 684         break;
 685       case PROP_INCOMING:
 686         tp_file->priv->incoming = g_value_get_boolean (value);
 687         break;
 688       case PROP_FILENAME:
 689         g_free (tp_file->priv->filename);
 690         tp_file->priv->filename = g_value_dup_string (value);
 691         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 692             "Filename", value);
 693         break;
 694       case PROP_SIZE:
 695         tp_file->priv->size = g_value_get_uint64 (value);
 696         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 697             "Size", value);
 698         break;
 699       case PROP_CONTENT_TYPE:
 700         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 701             "ContentType", value);
 702         g_free (tp_file->priv->content_type);
 703         tp_file->priv->content_type = g_value_dup_string (value);
 704         break;
 705       case PROP_CONTENT_HASH:
 706         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 707             "ContentHash", value);
 708         g_free (tp_file->priv->content_hash);
 709         tp_file->priv->content_hash = g_value_dup_string (value);
 710         break;
 711       default:
 712         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 713         break;
 714     };
 715 }
 716
 717 /**
 718  * empathy_tp_file_new:
 719  * @channel: a Telepathy channel
 720  *
 721  * Creates a new #EmpathyTpFile wrapping @channel.
 722  *
 723  * Returns: a new #EmpathyTpFile
 724  */
 725 EmpathyTpFile *
 726 empathy_tp_file_new (TpChannel *channel)
 727 {
 728   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 729
 730   return g_object_new (EMPATHY_TYPE_TP_FILE,
 731       "channel", channel,
 732       NULL);
 733 }
 734
 735 /**
 736  * empathy_tp_file_get_id:
 737  * @tp_file: an #EmpathyTpFile
 738  *
 739  * Returns the ID of @tp_file.
 740  *
 741  * Returns: the ID
 742  */
 743 const gchar *
 744 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 745 {
 746   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 747
 748   return tp_file->priv->id;
 749 }
 750
 751 /**
 752  * empathy_tp_file_get_channel
 753  * @tp_file: an #EmpathyTpFile
 754  *
 755  * Returns the Telepathy file transfer channel
 756  *
 757  * Returns: the #TpChannel
 758  */
 759 TpChannel *
 760 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 761 {
 762   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 763
 764   return tp_file->priv->channel;
 765 }
 766
 767 static void
 768 tp_file_method_cb (TpProxy *proxy,
 769                    const GValue *address,
 770                    const GError *error,
 771                    gpointer user_data,
 772                    GObject *weak_object)
 773 {
 774   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 775
 776   if (error)
 777     {
 778       DEBUG ("Error: %s", error->message);
 779       return;
 780     }
 781
 782   if (tp_file->priv->unix_socket_path)
 783     g_free (tp_file->priv->unix_socket_path);
 784
 785   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 786
 787   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 788 }
 789
 790
 791 /**
 792  * empathy_tp_file_accept:
 793  * @tp_file: an #EmpathyTpFile
 794  *
 795  * Accepts a file transfer that's in the "local pending" state (i.e.
 796  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 797  */
 798 void
 799 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 800                         guint64 offset)
 801 {
 802   GValue nothing = { 0 };
 803
 804   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 805
 806   g_return_if_fail (tp_file->priv->out_stream != NULL);
 807
 808   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 809
 810   g_value_init (&nothing, G_TYPE_STRING);
 811   g_value_set_string (&nothing, "");
 812
 813   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 814       tp_file->priv->channel),
 815       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 816       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 817 }
 818
 819 /**
 820  * empathy_tp_file_offer:
 821  * @tp_file: an #EmpathyTpFile
 822  *
 823  * Offers a file transfer that's in the "not offered" state (i.e.
 824  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 825  */
 826 void
 827 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 828 {
 829   GValue nothing = { 0 };
 830
 831   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 832
 833   g_value_init (&nothing, G_TYPE_STRING);
 834   g_value_set_string (&nothing, "");
 835
 836   emp_cli_channel_type_file_transfer_call_provide_file (
 837       TP_PROXY (tp_file->priv->channel), -1,
 838       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 839       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 840 }
 841
 842 EmpathyContact *
 843 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 844 {
 845   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 846   return tp_file->priv->contact;
 847 }
 848
 849 GFile *
 850 empathy_tp_file_get_gfile (EmpathyTpFile *tp_file)
 851 {
 852   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 853   return g_object_ref (tp_file->priv->gfile);
 854 }
 855
 856 const gchar *
 857 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 858 {
 859   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 860   return tp_file->priv->filename;
 861 }
 862
 863 gboolean
 864 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 865 {
 866   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 867   return tp_file->priv->incoming;
 868 }
 869
 870 EmpFileTransferState
 871 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 872 {
 873   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 874       EMP_FILE_TRANSFER_STATE_NONE);
 875   return tp_file->priv->state;
 876 }
 877
 878 EmpFileTransferStateChangeReason
 879 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 880 {
 881   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 882       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 883
 884   return tp_file->priv->state_change_reason;
 885 }
 886
 887 guint64
 888 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 889 {
 890   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 891       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 892   return tp_file->priv->size;
 893 }
 894
 895 guint64
 896 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 897 {
 898   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 899   return tp_file->priv->transferred_bytes;
 900 }
 901
 902 gint
 903 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 904 {
 905   time_t curr_time, elapsed_time;
 906   gdouble time_per_byte;
 907   gdouble remaining_time;
 908
 909   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 910
 911   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 912     return -1;
 913
 914   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 915     return 0;
 916
 917   curr_time = empathy_time_get_current ();
 918   elapsed_time = curr_time - tp_file->priv->start_time;
 919   time_per_byte = (gdouble) elapsed_time /
 920       (gdouble) tp_file->priv->transferred_bytes;
 921   remaining_time = time_per_byte * (tp_file->priv->size -
 922       tp_file->priv->transferred_bytes);
 923
 924   return (gint) remaining_time;
 925 }
 926
 927 void
 928 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 929 {
 930   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 931
 932   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 933
 934   g_cancellable_cancel (tp_file->priv->cancellable);
 935 }
 936
 937 void
 938 empathy_tp_file_set_gfile (EmpathyTpFile *tp_file,
 939                            GFile *gfile,
 940                            GError **error)
 941 {
 942   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 943   g_return_if_fail (gfile);
 944
 945   if (tp_file->priv->gfile == gfile)
 946     return;
 947
 948   tp_file->priv->gfile = g_object_ref (gfile);
 949
 950   if (!tp_file->priv->incoming)
 951     {
 952       GInputStream *in_stream;
 953
 954       in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, NULL));
 955
 956       if (tp_file->priv->in_stream)
 957         g_object_unref (tp_file->priv->in_stream);
 958
 959       tp_file->priv->in_stream = g_object_ref (in_stream);
 960     }
 961   else
 962     {
 963       GOutputStream *out_stream;
 964       gchar *filename;
 965
 966       out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL, FALSE,
 967         0, NULL, error));
 968
 969       if (*error)
 970         return;
 971
 972       if (tp_file->priv->out_stream == out_stream)
 973         return;
 974
 975       if (tp_file->priv->out_stream)
 976         g_object_unref (tp_file->priv->out_stream);
 977
 978       tp_file->priv->out_stream = g_object_ref (out_stream);
 979
 980       filename = g_file_get_basename (gfile);
 981       empathy_tp_file_set_filename (tp_file, filename);
 982
 983       g_free (filename);
 984     }
 985 }
 986
 987 void
 988 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 989                               const gchar *filename)
 990 {
 991   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 992   g_return_if_fail (filename != NULL);
 993
 994   if (tp_file->priv->filename && strcmp (filename,
 995       tp_file->priv->filename) == 0)
 996     return;
 997
 998   g_free (tp_file->priv->filename);
 999   tp_file->priv->filename = g_strdup (filename);
1000
1001   g_object_notify (G_OBJECT (tp_file), "filename");
1002 }
1003
1004 static void
1005 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
1006 {
1007   GObjectClass *object_class = G_OBJECT_CLASS (klass);
1008
1009   object_class->finalize = tp_file_finalize;
1010   object_class->constructor = tp_file_constructor;
1011   object_class->get_property = tp_file_get_property;
1012   object_class->set_property = tp_file_set_property;
1013
1014   /* Construct-only properties */
1015   g_object_class_install_property (object_class,
1016       PROP_CHANNEL,
1017       g_param_spec_object ("channel",
1018           "telepathy channel",
1019           "The file transfer channel",
1020           TP_TYPE_CHANNEL,
1021           G_PARAM_READWRITE |
1022           G_PARAM_CONSTRUCT_ONLY));
1023
1024   g_object_class_install_property (object_class,
1025       PROP_STATE,
1026       g_param_spec_uint ("state",
1027           "state of the transfer",
1028           "The file transfer state",
1029           0,
1030           G_MAXUINT,
1031           G_MAXUINT,
1032           G_PARAM_READWRITE |
1033           G_PARAM_CONSTRUCT));
1034
1035   g_object_class_install_property (object_class,
1036       PROP_INCOMING,
1037       g_param_spec_boolean ("incoming",
1038           "incoming",
1039           "Whether the transfer is incoming",
1040           FALSE,
1041           G_PARAM_READWRITE |
1042           G_PARAM_CONSTRUCT));
1043
1044   g_object_class_install_property (object_class,
1045       PROP_FILENAME,
1046       g_param_spec_string ("filename",
1047           "name of the transfer",
1048           "The file transfer filename",
1049           "",
1050           G_PARAM_READWRITE));
1051
1052   g_object_class_install_property (object_class,
1053       PROP_SIZE,
1054       g_param_spec_uint64 ("size",
1055           "size of the file",
1056           "The file transfer size",
1057           0,
1058           G_MAXUINT64,
1059           G_MAXUINT64,
1060           G_PARAM_READWRITE));
1061
1062   g_object_class_install_property (object_class,
1063       PROP_CONTENT_TYPE,
1064       g_param_spec_string ("content-type",
1065           "file transfer content-type",
1066           "The file transfer content-type",
1067           "",
1068           G_PARAM_READWRITE));
1069
1070   g_object_class_install_property (object_class,
1071       PROP_CONTENT_HASH_TYPE,
1072       g_param_spec_uint ("content-hash-type",
1073           "file transfer hash type",
1074           "The type of the file transfer hash",
1075           0,
1076           G_MAXUINT,
1077           0,
1078           G_PARAM_READWRITE));
1079
1080   g_object_class_install_property (object_class,
1081       PROP_CONTENT_HASH,
1082       g_param_spec_string ("content-hash",
1083           "file transfer hash",
1084           "The hash of the transfer's contents",
1085           "",
1086           G_PARAM_READWRITE));
1087
1088   g_object_class_install_property (object_class,
1089       PROP_TRANSFERRED_BYTES,
1090       g_param_spec_uint64 ("transferred-bytes",
1091           "bytes transferred",
1092           "The number of bytes transferred",
1093           0,
1094           G_MAXUINT64,
1095           0,
1096           G_PARAM_READWRITE));
1097
1098   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1099 }