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 <libtelepathy/tp-conn.h>
  39 #include <libtelepathy/tp-helpers.h>
  40 #include <libtelepathy/tp-props-iface.h>
  41
  42 #include <telepathy-glib/proxy-subclass.h>
  43
  44 #include "empathy-tp-file.h"
  45 #include "empathy-contact-factory.h"
  46 #include "empathy-marshal.h"
  47 #include "empathy-time.h"
  48 #include "empathy-utils.h"
  49
  50 #define DEBUG_FLAG EMPATHY_DEBUG_FT
  51 #include "empathy-debug.h"
  52
  53 /**
  54  * SECTION:empathy-tp-file
  55  * @short_description: File channel
  56  * @see_also: #EmpathyTpFile, #EmpathyContact, empathy_send_file()
  57  * @include: libempthy/empathy-tp-file.h
  58  *
  59  * The #EmpathyTpFile object represents a Telepathy file channel.
  60  */
  61
  62 /**
  63  * EMPATHY_TP_FILE_UNKNOWN_SIZE:
  64  *
  65  * Value used for the "size" or "estimated-size" properties when the size of
  66  * the transferred file is unknown.
  67  */
  68
  69 /* Functions to copy the content of a GInputStream to a GOutputStream */
  70
  71 #define N_BUFFERS 2
  72 #define BUFFER_SIZE 4096
  73
  74 typedef struct {
  75   GInputStream *in;
  76   GOutputStream *out;
  77   GCancellable  *cancellable;
  78   char *buff[N_BUFFERS]; /* the temporary buffers */
  79   gsize count[N_BUFFERS]; /* how many bytes are used in the buffers */
  80   gboolean is_full[N_BUFFERS]; /* whether the buffers contain data */
  81   gint curr_read; /* index of the buffer used for reading */
  82   gint curr_write; /* index of the buffer used for writing */
  83   gboolean is_reading; /* we are reading */
  84   gboolean is_writing; /* we are writing */
  85   guint n_closed; /* number of streams that have been closed */
  86 } CopyData;
  87
  88 static void schedule_next (CopyData *copy);
  89
  90 static void
  91 free_copy_data_if_closed (CopyData *copy)
  92 {
  93   gint i;
  94
  95   /* Free the data only if both the input and output streams have
  96    * been closed. */
  97   copy->n_closed++;
  98   if (copy->n_closed < 2)
  99     return;
 100
 101   if (copy->in != NULL)
 102     g_object_unref (copy->in);
 103
 104   if (copy->out != NULL)
 105     g_object_unref (copy->out);
 106
 107   for (i = 0; i < N_BUFFERS; i++)
 108     g_free (copy->buff[i]);
 109
 110   g_object_unref (copy->cancellable);
 111   g_free (copy);
 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   free_copy_data_if_closed (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   free_copy_data_if_closed (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
 262   if (cancellable != NULL)
 263     copy->cancellable = g_object_ref (cancellable);
 264   else
 265     copy->cancellable = g_cancellable_new ();
 266
 267   for (i = 0; i < N_BUFFERS; i++)
 268     copy->buff[i] = g_malloc (BUFFER_SIZE);
 269
 270   schedule_next (copy);
 271 }
 272
 273 /* EmpathyTpFile object */
 274
 275 struct _EmpathyTpFilePriv {
 276   EmpathyContactFactory *factory;
 277   gchar *id;
 278   MissionControl *mc;
 279   TpChannel *channel;
 280
 281   EmpathyContact *contact;
 282   GInputStream *in_stream;
 283   GOutputStream *out_stream;
 284   gboolean incoming;
 285   gchar *filename;
 286   EmpFileTransferState state;
 287   EmpFileTransferStateChangeReason state_change_reason;
 288   guint64 size;
 289   guint64 transferred_bytes;
 290   time_t start_time;
 291   gchar *unix_socket_path;
 292   gchar *content_hash;
 293   EmpFileHashType content_hash_type;
 294   gchar *content_type;
 295   gchar *description;
 296   GCancellable *cancellable;
 297 };
 298
 299 enum {
 300   PROP_0,
 301   PROP_CHANNEL,
 302   PROP_STATE,
 303   PROP_INCOMING,
 304   PROP_FILENAME,
 305   PROP_SIZE,
 306   PROP_CONTENT_TYPE,
 307   PROP_TRANSFERRED_BYTES,
 308   PROP_CONTENT_HASH_TYPE,
 309   PROP_CONTENT_HASH,
 310   PROP_IN_STREAM,
 311 };
 312
 313 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 314
 315 static void
 316 empathy_tp_file_init (EmpathyTpFile *tp_file)
 317 {
 318   EmpathyTpFilePriv *priv;
 319
 320   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 321       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 322
 323   tp_file->priv = priv;
 324 }
 325
 326 static void
 327 tp_file_destroy_cb (TpChannel *file_channel,
 328                     EmpathyTpFile *tp_file)
 329 {
 330   DEBUG ("Channel Closed or CM crashed");
 331
 332   g_object_unref (tp_file->priv->channel);
 333   tp_file->priv->channel = NULL;
 334 }
 335
 336 static void
 337 tp_file_finalize (GObject *object)
 338 {
 339   EmpathyTpFile *tp_file;
 340
 341   tp_file = EMPATHY_TP_FILE (object);
 342
 343   if (tp_file->priv->channel)
 344     {
 345       DEBUG ("Closing channel..");
 346       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 347           tp_file_destroy_cb, object);
 348       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 349           NULL, NULL);
 350       if (G_IS_OBJECT (tp_file->priv->channel))
 351         g_object_unref (tp_file->priv->channel);
 352     }
 353
 354   if (tp_file->priv->factory)
 355     {
 356       g_object_unref (tp_file->priv->factory);
 357     }
 358   if (tp_file->priv->mc)
 359     {
 360       g_object_unref (tp_file->priv->mc);
 361     }
 362
 363   g_free (tp_file->priv->id);
 364   g_free (tp_file->priv->filename);
 365   g_free (tp_file->priv->unix_socket_path);
 366   g_free (tp_file->priv->description);
 367   g_free (tp_file->priv->content_hash);
 368   g_free (tp_file->priv->content_type);
 369
 370   if (tp_file->priv->in_stream)
 371     g_object_unref (tp_file->priv->in_stream);
 372
 373   if (tp_file->priv->out_stream)
 374     g_object_unref (tp_file->priv->out_stream);
 375
 376   if (tp_file->priv->contact)
 377     g_object_unref (tp_file->priv->contact);
 378
 379   if (tp_file->priv->cancellable)
 380     g_object_unref (tp_file->priv->cancellable);
 381
 382   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 383 }
 384
 385 static void
 386 tp_file_closed_cb (TpChannel *file_channel,
 387                    EmpathyTpFile *tp_file,
 388                    GObject *weak_object)
 389 {
 390   /* The channel is closed, do just like if the proxy was destroyed */
 391   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 392       tp_file_destroy_cb,
 393       tp_file);
 394   tp_file_destroy_cb (file_channel, tp_file);
 395 }
 396
 397 static gint
 398 _get_local_socket (EmpathyTpFile *tp_file)
 399 {
 400   gint fd;
 401   size_t path_len;
 402   struct sockaddr_un addr;
 403
 404   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 405     return -1;
 406
 407   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 408   if (fd < 0)
 409     return -1;
 410
 411   memset (&addr, 0, sizeof (addr));
 412   addr.sun_family = AF_UNIX;
 413   path_len = strlen (tp_file->priv->unix_socket_path);
 414   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 415
 416   if (connect (fd, (struct sockaddr*) &addr,
 417       sizeof (addr)) < 0)
 418     {
 419       close (fd);
 420       return -1;
 421     }
 422
 423   return fd;
 424 }
 425
 426 static void
 427 send_tp_file (EmpathyTpFile *tp_file)
 428 {
 429   gint socket_fd;
 430   GOutputStream *socket_stream;
 431
 432   DEBUG ("Sending file content: filename=%s",
 433       tp_file->priv->filename);
 434
 435   g_return_if_fail (tp_file->priv->in_stream);
 436
 437   socket_fd = _get_local_socket (tp_file);
 438   if (socket_fd < 0)
 439     {
 440       DEBUG ("failed to get local socket fd");
 441       return;
 442     }
 443   DEBUG ("got local socket fd");
 444   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 445
 446   tp_file->priv->cancellable = g_cancellable_new ();
 447
 448   copy_stream (tp_file->priv->in_stream, socket_stream,
 449       tp_file->priv->cancellable);
 450
 451   g_object_unref (socket_stream);
 452 }
 453
 454 static void
 455 receive_tp_file (EmpathyTpFile *tp_file)
 456 {
 457   GInputStream *socket_stream;
 458   gint socket_fd;
 459
 460   socket_fd = _get_local_socket (tp_file);
 461
 462   if (socket_fd < 0)
 463     return;
 464
 465   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 466
 467   tp_file->priv->cancellable = g_cancellable_new ();
 468
 469   copy_stream (socket_stream, tp_file->priv->out_stream,
 470       tp_file->priv->cancellable);
 471
 472   g_object_unref (socket_stream);
 473 }
 474
 475 static void
 476 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 477                           EmpFileTransferState state,
 478                           EmpFileTransferStateChangeReason reason,
 479                           EmpathyTpFile *tp_file)
 480 {
 481   DEBUG ("File transfer state changed: filename=%s, "
 482       "old state=%u, state=%u, reason=%u",
 483       tp_file->priv->filename, tp_file->priv->state, state, reason);
 484
 485   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 486     tp_file->priv->start_time = empathy_time_get_current ();
 487
 488   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 489       state, tp_file->priv->incoming ? "yes" : "no",
 490       tp_file->priv->in_stream ? "present" : "not present",
 491       tp_file->priv->out_stream ? "present" : "not present");
 492
 493   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 494       tp_file->priv->in_stream)
 495     send_tp_file (tp_file);
 496   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 497       tp_file->priv->out_stream)
 498     receive_tp_file (tp_file);
 499
 500   tp_file->priv->state = state;
 501   tp_file->priv->state_change_reason = reason;
 502
 503   g_object_notify (G_OBJECT (tp_file), "state");
 504 }
 505
 506 static void
 507 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 508                                       guint64 count,
 509                                       EmpathyTpFile *tp_file,
 510                                       GObject *weak_object)
 511 {
 512   if (tp_file->priv->transferred_bytes == count)
 513     return;
 514
 515   tp_file->priv->transferred_bytes = count;
 516
 517   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 518 }
 519
 520 static GObject *
 521 tp_file_constructor (GType type,
 522                      guint n_props,
 523                      GObjectConstructParam *props)
 524 {
 525   GObject *file_obj;
 526   EmpathyTpFile *tp_file;
 527   TpHandle handle;
 528   GHashTable *properties;
 529   McAccount *account;
 530
 531   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 532       n_props, props);
 533
 534   tp_file = EMPATHY_TP_FILE (file_obj);
 535
 536   tp_file->priv->factory = empathy_contact_factory_new ();
 537   tp_file->priv->mc = empathy_mission_control_new ();
 538
 539   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 540       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 541       tp_file,
 542       NULL, NULL, NULL);
 543
 544   emp_cli_channel_type_file_connect_to_file_transfer_state_changed (
 545       TP_PROXY (tp_file->priv->channel),
 546       (emp_cli_channel_type_file_signal_callback_file_transfer_state_changed)
 547           tp_file_state_changed_cb,
 548       tp_file,
 549       NULL, NULL, NULL);
 550
 551   emp_cli_channel_type_file_connect_to_transferred_bytes_changed (
 552       TP_PROXY (tp_file->priv->channel),
 553       (emp_cli_channel_type_file_signal_callback_transferred_bytes_changed)
 554           tp_file_transferred_bytes_changed_cb,
 555       tp_file,
 556       NULL, NULL, NULL);
 557
 558   account = empathy_channel_get_account (tp_file->priv->channel);
 559
 560   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 561   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 562       tp_file->priv->factory, account, (guint) handle);
 563
 564   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 565       -1, EMP_IFACE_CHANNEL_TYPE_FILE, &properties, NULL, NULL);
 566
 567   tp_file->priv->size = g_value_get_uint64 (
 568       g_hash_table_lookup (properties, "Size"));
 569
 570   tp_file->priv->state = g_value_get_uint (
 571       g_hash_table_lookup (properties, "State"));
 572
 573   /* Invalid reason, so empathy_file_get_state_change_reason() can give
 574    * a warning if called for a not closed file transfer. */
 575   tp_file->priv->state_change_reason = -1;
 576
 577   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 578       g_hash_table_lookup (properties, "TransferredBytes"));
 579
 580   tp_file->priv->filename = g_value_dup_string (
 581       g_hash_table_lookup (properties, "Filename"));
 582
 583   tp_file->priv->content_hash = g_value_dup_string (
 584       g_hash_table_lookup (properties, "ContentHash"));
 585
 586   tp_file->priv->description = g_value_dup_string (
 587       g_hash_table_lookup (properties, "Description"));
 588
 589   if (tp_file->priv->state == EMP_FILE_TRANSFER_STATE_LOCAL_PENDING)
 590     tp_file->priv->incoming = TRUE;
 591
 592   g_hash_table_destroy (properties);
 593   g_object_unref (account);
 594
 595   return file_obj;
 596 }
 597
 598 static void
 599 tp_file_get_property (GObject *object,
 600                       guint param_id,
 601                       GValue *value,
 602                       GParamSpec *pspec)
 603 {
 604   EmpathyTpFile *tp_file;
 605
 606   tp_file = EMPATHY_TP_FILE (object);
 607
 608   switch (param_id)
 609     {
 610       case PROP_CHANNEL:
 611         g_value_set_object (value, tp_file->priv->channel);
 612         break;
 613       default:
 614         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 615         break;
 616     };
 617 }
 618
 619 static void
 620 tp_file_channel_set_dbus_property (gpointer proxy,
 621                                    const gchar *property,
 622                                    const GValue *value)
 623 {
 624         DEBUG ("Setting %s property", property);
 625         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 626             EMP_IFACE_CHANNEL_TYPE_FILE, property, value,
 627             NULL, NULL, NULL, NULL);
 628 }
 629
 630
 631 static void
 632 tp_file_set_property (GObject *object,
 633                       guint param_id,
 634                       const GValue *value,
 635                       GParamSpec *pspec)
 636 {
 637   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 638   switch (param_id)
 639     {
 640       case PROP_CHANNEL:
 641         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 642         break;
 643       case PROP_STATE:
 644         tp_file->priv->state = g_value_get_uint (value);
 645         break;
 646       case PROP_INCOMING:
 647         tp_file->priv->incoming = g_value_get_boolean (value);
 648         break;
 649       case PROP_FILENAME:
 650         g_free (tp_file->priv->filename);
 651         tp_file->priv->filename = g_value_dup_string (value);
 652         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 653             "Filename", value);
 654         break;
 655       case PROP_SIZE:
 656         tp_file->priv->size = g_value_get_uint64 (value);
 657         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 658             "Size", value);
 659         break;
 660       case PROP_CONTENT_TYPE:
 661         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 662             "ContentType", value);
 663         g_free (tp_file->priv->content_type);
 664         tp_file->priv->content_type = g_value_dup_string (value);
 665         break;
 666       case PROP_CONTENT_HASH:
 667         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 668             "ContentHash", value);
 669         g_free (tp_file->priv->content_hash);
 670         tp_file->priv->content_hash = g_value_dup_string (value);
 671         break;
 672       case PROP_IN_STREAM:
 673         if (tp_file->priv->in_stream)
 674           g_object_unref (tp_file->priv->in_stream);
 675         tp_file->priv->in_stream = g_object_ref (g_value_get_object (value));
 676         break;
 677       default:
 678         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 679         break;
 680     };
 681 }
 682
 683 /**
 684  * empathy_tp_file_new:
 685  * @channel: a Telepathy channel
 686  *
 687  * Creates a new #EmpathyTpFile wrapping @channel.
 688  *
 689  * Returns: a new #EmpathyTpFile
 690  */
 691 EmpathyTpFile *
 692 empathy_tp_file_new (TpChannel *channel)
 693 {
 694   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 695
 696   return g_object_new (EMPATHY_TYPE_TP_FILE,
 697       "channel", channel,
 698       NULL);
 699 }
 700
 701 /**
 702  * empathy_tp_file_get_id:
 703  * @tp_file: an #EmpathyTpFile
 704  *
 705  * Returns the ID of @tp_file.
 706  *
 707  * Returns: the ID
 708  */
 709 const gchar *
 710 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 711 {
 712   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 713
 714   return tp_file->priv->id;
 715 }
 716
 717 /**
 718  * empathy_tp_file_get_channel
 719  * @tp_file: an #EmpathyTpFile
 720  *
 721  * Returns the Telepathy file transfer channel
 722  *
 723  * Returns: the #TpChannel
 724  */
 725 TpChannel *
 726 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 727 {
 728   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 729
 730   return tp_file->priv->channel;
 731 }
 732
 733 static void
 734 tp_file_method_cb (TpProxy *proxy,
 735                    const GValue *address,
 736                    const GError *error,
 737                    gpointer user_data,
 738                    GObject *weak_object)
 739 {
 740   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 741
 742   if (error)
 743     {
 744       DEBUG ("Error: %s", error->message);
 745       return;
 746     }
 747
 748   if (tp_file->priv->unix_socket_path)
 749     g_free (tp_file->priv->unix_socket_path);
 750
 751   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 752
 753   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 754 }
 755
 756
 757 /**
 758  * empathy_tp_file_accept:
 759  * @tp_file: an #EmpathyTpFile
 760  *
 761  * Accepts a file transfer that's in the "local pending" state (i.e.
 762  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 763  */
 764 void
 765 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 766                         guint64 offset)
 767 {
 768   GValue nothing = { 0 };
 769
 770   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 771
 772   g_return_if_fail (tp_file->priv->out_stream != NULL);
 773
 774   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 775
 776   g_value_init (&nothing, G_TYPE_STRING);
 777   g_value_set_string (&nothing, "");
 778
 779   emp_cli_channel_type_file_call_accept_file (TP_PROXY (tp_file->priv->channel),
 780       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 781       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 782 }
 783
 784 /**
 785  * empathy_tp_file_offer:
 786  * @tp_file: an #EmpathyTpFile
 787  *
 788  * Offers a file transfer that's in the "not offered" state (i.e.
 789  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 790  */
 791 void
 792 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 793 {
 794   GValue nothing = { 0 };
 795
 796   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 797
 798   g_value_init (&nothing, G_TYPE_STRING);
 799   g_value_set_string (&nothing, "");
 800
 801   emp_cli_channel_type_file_call_offer_file (
 802       TP_PROXY (tp_file->priv->channel), -1,
 803       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 804       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 805 }
 806
 807 EmpathyContact *
 808 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 809 {
 810   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 811   return tp_file->priv->contact;
 812 }
 813
 814 GInputStream *
 815 empathy_tp_file_get_input_stream (EmpathyTpFile *tp_file)
 816 {
 817   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 818   return tp_file->priv->in_stream;
 819 }
 820
 821 GOutputStream *
 822 empathy_tp_file_get_output_stream (EmpathyTpFile *tp_file)
 823 {
 824   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 825   return tp_file->priv->out_stream;
 826 }
 827
 828 const gchar *
 829 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 830 {
 831   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 832   return tp_file->priv->filename;
 833 }
 834
 835 gboolean
 836 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 837 {
 838   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 839   return tp_file->priv->incoming;
 840 }
 841
 842 EmpFileTransferState
 843 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 844 {
 845   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 846       EMP_FILE_TRANSFER_STATE_NONE);
 847   return tp_file->priv->state;
 848 }
 849
 850 EmpFileTransferStateChangeReason
 851 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 852 {
 853   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 854       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 855   g_return_val_if_fail (tp_file->priv->state_change_reason >= 0,
 856       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 857
 858   return tp_file->priv->state_change_reason;
 859 }
 860
 861 guint64
 862 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 863 {
 864   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 865       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 866   return tp_file->priv->size;
 867 }
 868
 869 guint64
 870 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 871 {
 872   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 873   return tp_file->priv->transferred_bytes;
 874 }
 875
 876 gint
 877 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 878 {
 879   time_t curr_time, elapsed_time;
 880   gdouble time_per_byte;
 881   gdouble remaining_time;
 882
 883   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 884
 885   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 886     return -1;
 887
 888   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 889     return 0;
 890
 891   curr_time = empathy_time_get_current ();
 892   elapsed_time = curr_time - tp_file->priv->start_time;
 893   time_per_byte = (gdouble) elapsed_time /
 894       (gdouble) tp_file->priv->transferred_bytes;
 895   remaining_time = time_per_byte * (tp_file->priv->size -
 896       tp_file->priv->transferred_bytes);
 897
 898   return (gint) (remaining_time + 0.5);
 899 }
 900
 901 void
 902 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 903 {
 904   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 905
 906   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 907
 908   g_cancellable_cancel (tp_file->priv->cancellable);
 909 }
 910
 911 void
 912 empathy_tp_file_set_input_stream (EmpathyTpFile *tp_file,
 913                                   GInputStream *in_stream)
 914 {
 915   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 916   g_return_if_fail (G_IS_INPUT_STREAM (in_stream));
 917
 918   if (tp_file->priv->in_stream == in_stream)
 919     return;
 920
 921   if (tp_file->priv->incoming)
 922     g_warning ("Setting an input stream for incoming file "
 923          "transfers is useless");
 924
 925   if (tp_file->priv->in_stream)
 926     g_object_unref (tp_file->priv->in_stream);
 927
 928   if (in_stream)
 929     g_object_ref (in_stream);
 930
 931   tp_file->priv->in_stream = in_stream;
 932
 933   g_object_notify (G_OBJECT (tp_file), "in-stream");
 934 }
 935
 936 void
 937 empathy_tp_file_set_output_stream (EmpathyTpFile *tp_file,
 938                                    GOutputStream *out_stream)
 939 {
 940   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 941   g_return_if_fail (G_IS_OUTPUT_STREAM (out_stream));
 942
 943   if (tp_file->priv->out_stream == out_stream)
 944     return;
 945
 946   if (!tp_file->priv->incoming)
 947     g_warning ("Setting an output stream for outgoing file "
 948          "transfers is useless");
 949
 950   if (tp_file->priv->out_stream)
 951     g_object_unref (tp_file->priv->out_stream);
 952
 953   if (out_stream)
 954     g_object_ref (out_stream);
 955
 956   tp_file->priv->out_stream = out_stream;
 957 }
 958
 959 void
 960 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 961                               const gchar *filename)
 962 {
 963   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 964   g_return_if_fail (filename != NULL);
 965
 966   if (tp_file->priv->filename && strcmp (filename,
 967       tp_file->priv->filename) == 0)
 968     return;
 969
 970   g_free (tp_file->priv->filename);
 971   tp_file->priv->filename = g_strdup (filename);
 972
 973   g_object_notify (G_OBJECT (tp_file), "filename");
 974 }
 975
 976 static void
 977 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 978 {
 979   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 980
 981   object_class->finalize = tp_file_finalize;
 982   object_class->constructor = tp_file_constructor;
 983   object_class->get_property = tp_file_get_property;
 984   object_class->set_property = tp_file_set_property;
 985
 986   /* Construct-only properties */
 987   g_object_class_install_property (object_class,
 988       PROP_CHANNEL,
 989       g_param_spec_object ("channel",
 990           "telepathy channel",
 991           "The file transfer channel",
 992           TP_TYPE_CHANNEL,
 993           G_PARAM_READWRITE |
 994           G_PARAM_CONSTRUCT_ONLY));
 995
 996   g_object_class_install_property (object_class,
 997       PROP_STATE,
 998       g_param_spec_uint ("state",
 999           "state of the transfer",
1000           "The file transfer state",
1001           0,
1002           G_MAXUINT,
1003           G_MAXUINT,
1004           G_PARAM_READWRITE |
1005           G_PARAM_CONSTRUCT));
1006
1007   g_object_class_install_property (object_class,
1008       PROP_INCOMING,
1009       g_param_spec_boolean ("incoming",
1010           "incoming",
1011           "Whether the transfer is incoming",
1012           FALSE,
1013           G_PARAM_READWRITE |
1014           G_PARAM_CONSTRUCT));
1015
1016   g_object_class_install_property (object_class,
1017       PROP_FILENAME,
1018       g_param_spec_string ("filename",
1019           "name of the transfer",
1020           "The file transfer filename",
1021           "",
1022           G_PARAM_READWRITE));
1023
1024   g_object_class_install_property (object_class,
1025       PROP_SIZE,
1026       g_param_spec_uint64 ("size",
1027           "size of the file",
1028           "The file transfer size",
1029           0,
1030           G_MAXUINT64,
1031           G_MAXUINT64,
1032           G_PARAM_READWRITE));
1033
1034   g_object_class_install_property (object_class,
1035       PROP_CONTENT_TYPE,
1036       g_param_spec_string ("content-type",
1037           "file transfer content-type",
1038           "The file transfer content-type",
1039           "",
1040           G_PARAM_READWRITE));
1041
1042   g_object_class_install_property (object_class,
1043       PROP_CONTENT_HASH_TYPE,
1044       g_param_spec_uint ("content-hash-type",
1045           "file transfer hash type",
1046           "The type of the file transfer hash",
1047           0,
1048           G_MAXUINT,
1049           0,
1050           G_PARAM_READWRITE));
1051
1052   g_object_class_install_property (object_class,
1053       PROP_CONTENT_HASH,
1054       g_param_spec_string ("content-hash",
1055           "file transfer hash",
1056           "The hash of the transfer's contents",
1057           "",
1058           G_PARAM_READWRITE));
1059
1060   g_object_class_install_property (object_class,
1061       PROP_TRANSFERRED_BYTES,
1062       g_param_spec_uint64 ("transferred-bytes",
1063           "bytes transferred",
1064           "The number of bytes transferred",
1065           0,
1066           G_MAXUINT64,
1067           0,
1068           G_PARAM_READWRITE));
1069
1070   g_object_class_install_property (object_class,
1071       PROP_IN_STREAM,
1072       g_param_spec_object ("in-stream",
1073           "transfer input stream",
1074           "The input stream for file transfer",
1075           G_TYPE_INPUT_STREAM,
1076           G_PARAM_READWRITE));
1077
1078   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1079 }