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_invalidated_cb (TpProxy       *proxy,
 331                         guint          domain,
 332                         gint           code,
 333                         gchar         *message,
 334                         EmpathyTpFile *tp_file)
 335 {
 336         DEBUG ("Channel invalidated: %s", message);
 337         tp_file->priv->state = EMP_FILE_TRANSFER_STATE_CANCELLED;
 338         tp_file->priv->state_change_reason =
 339             EMP_FILE_TRANSFER_STATE_CHANGE_REASON_LOCAL_ERROR;
 340         g_object_notify (G_OBJECT (tp_file), "state");
 341 }
 342
 343 static void
 344 tp_file_finalize (GObject *object)
 345 {
 346   EmpathyTpFile *tp_file;
 347
 348   tp_file = EMPATHY_TP_FILE (object);
 349
 350   if (tp_file->priv->channel)
 351     {
 352       DEBUG ("Closing channel..");
 353       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 354           tp_file_invalidated_cb, object);
 355       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 356           NULL, NULL);
 357       g_object_unref (tp_file->priv->channel);
 358     }
 359
 360   if (tp_file->priv->factory)
 361     {
 362       g_object_unref (tp_file->priv->factory);
 363     }
 364   if (tp_file->priv->mc)
 365     {
 366       g_object_unref (tp_file->priv->mc);
 367     }
 368
 369   g_free (tp_file->priv->id);
 370   g_free (tp_file->priv->filename);
 371   g_free (tp_file->priv->unix_socket_path);
 372   g_free (tp_file->priv->description);
 373   g_free (tp_file->priv->content_hash);
 374   g_free (tp_file->priv->content_type);
 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_start_transfer (EmpathyTpFile *tp_file)
 393 {
 394   gint fd;
 395   size_t path_len;
 396   struct sockaddr_un addr;
 397
 398   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 399   if (fd < 0)
 400     {
 401       DEBUG ("Failed to create socket, closing channel");
 402       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 403       return;
 404     }
 405
 406   memset (&addr, 0, sizeof (addr));
 407   addr.sun_family = AF_UNIX;
 408   path_len = strlen (tp_file->priv->unix_socket_path);
 409   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 410
 411   if (connect (fd, (struct sockaddr*) &addr, sizeof (addr)) < 0)
 412     {
 413       DEBUG ("Failed to connect socket, closing channel");
 414       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 415       close (fd);
 416       return;
 417     }
 418
 419   DEBUG ("Start the transfer");
 420
 421   tp_file->priv->start_time = empathy_time_get_current ();
 422   tp_file->priv->cancellable = g_cancellable_new ();
 423   if (tp_file->priv->incoming)
 424     {
 425       GOutputStream *socket_stream;
 426
 427       socket_stream = g_unix_output_stream_new (fd, TRUE);
 428       copy_stream (tp_file->priv->in_stream, socket_stream,
 429           tp_file->priv->cancellable);
 430       g_object_unref (socket_stream);
 431     }
 432   else
 433     {
 434       GInputStream *socket_stream;
 435
 436       socket_stream = g_unix_input_stream_new (fd, TRUE);
 437       copy_stream (socket_stream, tp_file->priv->out_stream,
 438           tp_file->priv->cancellable);
 439       g_object_unref (socket_stream);
 440     }
 441 }
 442
 443 static void
 444 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 445                           EmpFileTransferState state,
 446                           EmpFileTransferStateChangeReason reason,
 447                           EmpathyTpFile *tp_file)
 448 {
 449   DEBUG ("File transfer state changed:\n"
 450       "\tfilename = %s, old state = %u, state = %u, reason = %u\n"
 451       "\tincoming = %s, in_stream = %s, out_stream = %s",
 452       tp_file->priv->filename, tp_file->priv->state, state, reason,
 453       tp_file->priv->incoming ? "yes" : "no",
 454       tp_file->priv->in_stream ? "present" : "not present",
 455       tp_file->priv->out_stream ? "present" : "not present");
 456
 457   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 458     tp_file_start_transfer (tp_file);
 459
 460   tp_file->priv->state = state;
 461   tp_file->priv->state_change_reason = reason;
 462
 463   g_object_notify (G_OBJECT (tp_file), "state");
 464 }
 465
 466 static void
 467 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 468                                       guint64 count,
 469                                       EmpathyTpFile *tp_file,
 470                                       GObject *weak_object)
 471 {
 472   if (tp_file->priv->transferred_bytes == count)
 473     return;
 474
 475   tp_file->priv->transferred_bytes = count;
 476
 477   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 478 }
 479
 480 static GObject *
 481 tp_file_constructor (GType type,
 482                      guint n_props,
 483                      GObjectConstructParam *props)
 484 {
 485   GObject *file_obj;
 486   EmpathyTpFile *tp_file;
 487   TpHandle handle;
 488   GHashTable *properties;
 489   McAccount *account;
 490   GValue *requested;
 491
 492   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 493       n_props, props);
 494
 495   tp_file = EMPATHY_TP_FILE (file_obj);
 496
 497   tp_file->priv->factory = empathy_contact_factory_new ();
 498   tp_file->priv->mc = empathy_mission_control_new ();
 499
 500   g_signal_connect (tp_file->priv->channel, "invalidated",
 501     G_CALLBACK (tp_file_invalidated_cb), tp_file);
 502
 503   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 504       TP_PROXY (tp_file->priv->channel),
 505       (emp_cli_channel_type_file_transfer_signal_callback_file_transfer_state_changed)
 506           tp_file_state_changed_cb,
 507       tp_file,
 508       NULL, NULL, NULL);
 509
 510   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 511       TP_PROXY (tp_file->priv->channel),
 512       (emp_cli_channel_type_file_transfer_signal_callback_transferred_bytes_changed)
 513           tp_file_transferred_bytes_changed_cb,
 514       tp_file,
 515       NULL, NULL, NULL);
 516
 517   account = empathy_channel_get_account (tp_file->priv->channel);
 518
 519   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 520   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 521       tp_file->priv->factory, account, (guint) handle);
 522
 523   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 524       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 525
 526   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 527       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 528
 529   tp_file->priv->size = g_value_get_uint64 (
 530       g_hash_table_lookup (properties, "Size"));
 531
 532   tp_file->priv->state = g_value_get_uint (
 533       g_hash_table_lookup (properties, "State"));
 534
 535   tp_file->priv->state_change_reason =
 536       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 537
 538   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 539       g_hash_table_lookup (properties, "TransferredBytes"));
 540
 541   tp_file->priv->filename = g_value_dup_string (
 542       g_hash_table_lookup (properties, "Filename"));
 543
 544   tp_file->priv->content_hash = g_value_dup_string (
 545       g_hash_table_lookup (properties, "ContentHash"));
 546
 547   tp_file->priv->content_hash_type = g_value_get_uint (
 548       g_hash_table_lookup (properties, "ContentHashType"));
 549
 550   tp_file->priv->content_type = g_value_dup_string (
 551       g_hash_table_lookup (properties, "ContentType"));
 552
 553   tp_file->priv->description = g_value_dup_string (
 554       g_hash_table_lookup (properties, "Description"));
 555
 556   tp_file->priv->incoming = !g_value_get_boolean (requested);
 557
 558   g_hash_table_destroy (properties);
 559   g_object_unref (account);
 560   g_value_unset (requested);
 561
 562   return file_obj;
 563 }
 564
 565 static void
 566 tp_file_get_property (GObject *object,
 567                       guint param_id,
 568                       GValue *value,
 569                       GParamSpec *pspec)
 570 {
 571   EmpathyTpFile *tp_file;
 572
 573   tp_file = EMPATHY_TP_FILE (object);
 574
 575   switch (param_id)
 576     {
 577       case PROP_CHANNEL:
 578         g_value_set_object (value, tp_file->priv->channel);
 579         break;
 580       case PROP_INCOMING:
 581         g_value_set_boolean (value, tp_file->priv->incoming);
 582         break;
 583       case PROP_STATE:
 584         g_value_set_uint (value, tp_file->priv->state);
 585         break;
 586       case PROP_CONTENT_TYPE:
 587         g_value_set_string (value, tp_file->priv->content_type);
 588         break;
 589       case PROP_FILENAME:
 590         g_value_set_string (value, tp_file->priv->filename);
 591         break;
 592       case PROP_SIZE:
 593         g_value_set_uint64 (value, tp_file->priv->size);
 594         break;
 595       case PROP_CONTENT_HASH_TYPE:
 596         g_value_set_uint (value, tp_file->priv->content_hash_type);
 597         break;
 598       case PROP_CONTENT_HASH:
 599         g_value_set_string (value, tp_file->priv->content_hash);
 600         break;
 601       case PROP_TRANSFERRED_BYTES:
 602         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 603         break;
 604       default:
 605         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 606         break;
 607     };
 608 }
 609
 610 static void
 611 tp_file_channel_set_dbus_property (gpointer proxy,
 612                                    const gchar *property,
 613                                    const GValue *value)
 614 {
 615         DEBUG ("Setting %s property", property);
 616         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 617             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 618             NULL, NULL, NULL, NULL);
 619 }
 620
 621
 622 static void
 623 tp_file_set_property (GObject *object,
 624                       guint param_id,
 625                       const GValue *value,
 626                       GParamSpec *pspec)
 627 {
 628   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 629   switch (param_id)
 630     {
 631       case PROP_CHANNEL:
 632         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 633         break;
 634       case PROP_STATE:
 635         tp_file->priv->state = g_value_get_uint (value);
 636         break;
 637       case PROP_INCOMING:
 638         tp_file->priv->incoming = g_value_get_boolean (value);
 639         break;
 640       case PROP_FILENAME:
 641         g_free (tp_file->priv->filename);
 642         tp_file->priv->filename = g_value_dup_string (value);
 643         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 644             "Filename", value);
 645         break;
 646       case PROP_SIZE:
 647         tp_file->priv->size = g_value_get_uint64 (value);
 648         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 649             "Size", value);
 650         break;
 651       case PROP_CONTENT_TYPE:
 652         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 653             "ContentType", value);
 654         g_free (tp_file->priv->content_type);
 655         tp_file->priv->content_type = g_value_dup_string (value);
 656         break;
 657       case PROP_CONTENT_HASH:
 658         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 659             "ContentHash", value);
 660         g_free (tp_file->priv->content_hash);
 661         tp_file->priv->content_hash = g_value_dup_string (value);
 662         break;
 663       default:
 664         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 665         break;
 666     };
 667 }
 668
 669 /**
 670  * empathy_tp_file_new:
 671  * @channel: a Telepathy channel
 672  *
 673  * Creates a new #EmpathyTpFile wrapping @channel.
 674  *
 675  * Returns: a new #EmpathyTpFile
 676  */
 677 EmpathyTpFile *
 678 empathy_tp_file_new (TpChannel *channel)
 679 {
 680   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 681
 682   return g_object_new (EMPATHY_TYPE_TP_FILE,
 683       "channel", channel,
 684       NULL);
 685 }
 686
 687 /**
 688  * empathy_tp_file_get_id:
 689  * @tp_file: an #EmpathyTpFile
 690  *
 691  * Returns the ID of @tp_file.
 692  *
 693  * Returns: the ID
 694  */
 695 const gchar *
 696 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 697 {
 698   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 699
 700   return tp_file->priv->id;
 701 }
 702
 703 /**
 704  * empathy_tp_file_get_channel
 705  * @tp_file: an #EmpathyTpFile
 706  *
 707  * Returns the Telepathy file transfer channel
 708  *
 709  * Returns: the #TpChannel
 710  */
 711 TpChannel *
 712 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 713 {
 714   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 715
 716   return tp_file->priv->channel;
 717 }
 718
 719 static void
 720 tp_file_method_cb (TpProxy *proxy,
 721                    const GValue *address,
 722                    const GError *error,
 723                    gpointer user_data,
 724                    GObject *weak_object)
 725 {
 726   EmpathyTpFile *tp_file = (EmpathyTpFile *) weak_object;
 727
 728   if (error)
 729     {
 730       DEBUG ("Error: %s", error->message);
 731       return;
 732     }
 733
 734   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 735
 736   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 737 }
 738
 739
 740 /**
 741  * empathy_tp_file_accept:
 742  * @tp_file: an #EmpathyTpFile
 743  * @offset: position where to start the transfer
 744  * @gfile: a #GFile where to write transfered data
 745  * @error: a #GError set if there is an error when opening @gfile
 746  *
 747  * Accepts a file transfer that's in the "local pending" state (i.e.
 748  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 749  */
 750 void
 751 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 752                         guint64 offset,
 753                         GFile *gfile,
 754                         GError **error)
 755 {
 756   GValue nothing = { 0 };
 757
 758   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 759   g_return_if_fail (G_IS_FILE (gfile));
 760
 761   tp_file->priv->out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL,
 762         FALSE, 0, NULL, error));
 763   if (error && *error)
 764     return;
 765
 766   tp_file->priv->filename = g_file_get_basename (gfile);
 767   g_object_notify (G_OBJECT (tp_file), "filename");
 768
 769   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 770
 771   g_value_init (&nothing, G_TYPE_STRING);
 772   g_value_set_static_string (&nothing, "");
 773
 774   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 775       tp_file->priv->channel),
 776       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 777       &nothing, offset, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 778 }
 779
 780 /**
 781  * empathy_tp_file_offer:
 782  * @tp_file: an #EmpathyTpFile
 783  * @gfile: a #GFile where to read the data to transfer
 784  * @error: a #GError set if there is an error when opening @gfile
 785  *
 786  * Offers a file transfer that's in the "not offered" state (i.e.
 787  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 788  */
 789 void
 790 empathy_tp_file_offer (EmpathyTpFile *tp_file, GFile *gfile, GError **error)
 791 {
 792   GValue nothing = { 0 };
 793
 794   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 795
 796   tp_file->priv->in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, error));
 797   if (error && *error)
 798         return;
 799
 800   g_value_init (&nothing, G_TYPE_STRING);
 801   g_value_set_static_string (&nothing, "");
 802
 803   emp_cli_channel_type_file_transfer_call_provide_file (
 804       TP_PROXY (tp_file->priv->channel), -1,
 805       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 806       &nothing, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 807 }
 808
 809 EmpathyContact *
 810 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 811 {
 812   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 813   return tp_file->priv->contact;
 814 }
 815
 816 const gchar *
 817 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 818 {
 819   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 820   return tp_file->priv->filename;
 821 }
 822
 823 gboolean
 824 empathy_tp_file_is_incoming (EmpathyTpFile *tp_file)
 825 {
 826   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 827   return tp_file->priv->incoming;
 828 }
 829
 830 EmpFileTransferState
 831 empathy_tp_file_get_state (EmpathyTpFile *tp_file,
 832                            EmpFileTransferStateChangeReason *reason)
 833 {
 834   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 835       EMP_FILE_TRANSFER_STATE_NONE);
 836
 837   if (reason != NULL)
 838     *reason = tp_file->priv->state_change_reason;
 839
 840   return tp_file->priv->state;
 841 }
 842
 843 guint64
 844 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 845 {
 846   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 847       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 848   return tp_file->priv->size;
 849 }
 850
 851 guint64
 852 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 853 {
 854   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 855   return tp_file->priv->transferred_bytes;
 856 }
 857
 858 gint
 859 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 860 {
 861   time_t curr_time, elapsed_time;
 862   gdouble time_per_byte;
 863   gdouble remaining_time;
 864
 865   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 866
 867   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 868     return -1;
 869
 870   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 871     return 0;
 872
 873   curr_time = empathy_time_get_current ();
 874   elapsed_time = curr_time - tp_file->priv->start_time;
 875   time_per_byte = (gdouble) elapsed_time /
 876       (gdouble) tp_file->priv->transferred_bytes;
 877   remaining_time = time_per_byte * (tp_file->priv->size -
 878       tp_file->priv->transferred_bytes);
 879
 880   return (gint) remaining_time;
 881 }
 882
 883 void
 884 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 885 {
 886   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 887
 888   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 889
 890   g_cancellable_cancel (tp_file->priv->cancellable);
 891 }
 892
 893 static void
 894 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 895 {
 896   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 897
 898   object_class->finalize = tp_file_finalize;
 899   object_class->constructor = tp_file_constructor;
 900   object_class->get_property = tp_file_get_property;
 901   object_class->set_property = tp_file_set_property;
 902
 903   /* Construct-only properties */
 904   g_object_class_install_property (object_class,
 905       PROP_CHANNEL,
 906       g_param_spec_object ("channel",
 907           "telepathy channel",
 908           "The file transfer channel",
 909           TP_TYPE_CHANNEL,
 910           G_PARAM_READWRITE |
 911           G_PARAM_CONSTRUCT_ONLY));
 912
 913   g_object_class_install_property (object_class,
 914       PROP_STATE,
 915       g_param_spec_uint ("state",
 916           "state of the transfer",
 917           "The file transfer state",
 918           0,
 919           G_MAXUINT,
 920           G_MAXUINT,
 921           G_PARAM_READWRITE |
 922           G_PARAM_CONSTRUCT));
 923
 924   g_object_class_install_property (object_class,
 925       PROP_INCOMING,
 926       g_param_spec_boolean ("incoming",
 927           "incoming",
 928           "Whether the transfer is incoming",
 929           FALSE,
 930           G_PARAM_READWRITE |
 931           G_PARAM_CONSTRUCT));
 932
 933   g_object_class_install_property (object_class,
 934       PROP_FILENAME,
 935       g_param_spec_string ("filename",
 936           "name of the transfer",
 937           "The file transfer filename",
 938           "",
 939           G_PARAM_READWRITE));
 940
 941   g_object_class_install_property (object_class,
 942       PROP_SIZE,
 943       g_param_spec_uint64 ("size",
 944           "size of the file",
 945           "The file transfer size",
 946           0,
 947           G_MAXUINT64,
 948           G_MAXUINT64,
 949           G_PARAM_READWRITE));
 950
 951   g_object_class_install_property (object_class,
 952       PROP_CONTENT_TYPE,
 953       g_param_spec_string ("content-type",
 954           "file transfer content-type",
 955           "The file transfer content-type",
 956           "",
 957           G_PARAM_READWRITE));
 958
 959   g_object_class_install_property (object_class,
 960       PROP_CONTENT_HASH_TYPE,
 961       g_param_spec_uint ("content-hash-type",
 962           "file transfer hash type",
 963           "The type of the file transfer hash",
 964           0,
 965           G_MAXUINT,
 966           0,
 967           G_PARAM_READWRITE));
 968
 969   g_object_class_install_property (object_class,
 970       PROP_CONTENT_HASH,
 971       g_param_spec_string ("content-hash",
 972           "file transfer hash",
 973           "The hash of the transfer's contents",
 974           "",
 975           G_PARAM_READWRITE));
 976
 977   g_object_class_install_property (object_class,
 978       PROP_TRANSFERRED_BYTES,
 979       g_param_spec_uint64 ("transferred-bytes",
 980           "bytes transferred",
 981           "The number of bytes transferred",
 982           0,
 983           G_MAXUINT64,
 984           0,
 985           G_PARAM_READWRITE));
 986
 987   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
 988 }