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 } CopyData;
  83
  84 static void schedule_next (CopyData *copy);
  85
  86 static void
  87 free_copy_data_if_closed (CopyData *copy)
  88 {
  89   gint i;
  90
  91   /* Free the data only if both the input and output streams have
  92    * been closed. */
  93   copy->n_closed++;
  94   if (copy->n_closed < 2)
  95     return;
  96
  97   if (copy->in != NULL)
  98     g_object_unref (copy->in);
  99
 100   if (copy->out != NULL)
 101     g_object_unref (copy->out);
 102
 103   for (i = 0; i < N_BUFFERS; i++)
 104     g_free (copy->buff[i]);
 105
 106   g_object_unref (copy->cancellable);
 107   g_free (copy);
 108 }
 109
 110 static void
 111 io_error (CopyData *copy,
 112           GError *error)
 113 {
 114   g_cancellable_cancel (copy->cancellable);
 115
 116   if (error == NULL)
 117     g_warning ("I/O error");
 118   else if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
 119     ; /* Ignore cancellations */
 120   else
 121     g_warning ("I/O error: %d: %s\n", error->code, error->message);
 122
 123   if (copy->in != NULL)
 124     g_input_stream_close (copy->in, NULL, NULL);
 125
 126   if (copy->out != NULL)
 127     g_output_stream_close (copy->out, NULL, NULL);
 128
 129   free_copy_data_if_closed (copy);
 130 }
 131
 132 static void
 133 close_done (GObject *source_object,
 134             GAsyncResult *res,
 135             gpointer user_data)
 136 {
 137   CopyData *copy = user_data;
 138
 139   g_object_unref (source_object);
 140   free_copy_data_if_closed (copy);
 141 }
 142
 143 static void
 144 write_done_cb (GObject *source_object,
 145                GAsyncResult *res,
 146                gpointer user_data)
 147 {
 148   CopyData *copy = user_data;
 149   gssize count_write;
 150   GError *error = NULL;
 151
 152   count_write = g_output_stream_write_finish (copy->out, res, &error);
 153
 154   if (count_write <= 0)
 155     {
 156       io_error (copy, error);
 157       g_error_free (error);
 158       return;
 159     }
 160
 161   copy->is_full[copy->curr_write] = FALSE;
 162   copy->curr_write = (copy->curr_write + 1) % N_BUFFERS;
 163   copy->is_writing = FALSE;
 164
 165   schedule_next (copy);
 166 }
 167
 168 static void
 169 read_done_cb (GObject *source_object,
 170               GAsyncResult *res,
 171               gpointer user_data)
 172 {
 173   CopyData *copy = user_data;
 174   gssize count_read;
 175   GError *error = NULL;
 176
 177   count_read = g_input_stream_read_finish (copy->in, res, &error);
 178
 179   if (count_read == 0)
 180     {
 181       g_input_stream_close_async (copy->in, 0, copy->cancellable,
 182           close_done, copy);
 183       copy->in = NULL;
 184     }
 185   else if (count_read < 0)
 186     {
 187       io_error (copy, error);
 188       g_error_free (error);
 189       return;
 190     }
 191
 192   copy->count[copy->curr_read] = count_read;
 193   copy->is_full[copy->curr_read] = TRUE;
 194   copy->curr_read = (copy->curr_read + 1) % N_BUFFERS;
 195   copy->is_reading = FALSE;
 196
 197   schedule_next (copy);
 198 }
 199
 200 static void
 201 schedule_next (CopyData *copy)
 202 {
 203   if (copy->in != NULL &&
 204       !copy->is_reading &&
 205       !copy->is_full[copy->curr_read])
 206     {
 207       /* We are not reading and the current buffer is empty, so
 208        * start an async read. */
 209       copy->is_reading = TRUE;
 210       g_input_stream_read_async (copy->in,
 211           copy->buff[copy->curr_read],
 212           BUFFER_SIZE, 0, copy->cancellable,
 213           read_done_cb, copy);
 214     }
 215
 216   if (!copy->is_writing &&
 217       copy->is_full[copy->curr_write])
 218     {
 219       if (copy->count[copy->curr_write] == 0)
 220         {
 221           /* The last read on the buffer read 0 bytes, this
 222            * means that we got an EOF, so we can close
 223            * the output channel. */
 224           g_output_stream_close_async (copy->out, 0,
 225               copy->cancellable,
 226               close_done, copy);
 227       copy->out = NULL;
 228         }
 229       else
 230         {
 231           /* We are not writing and the current buffer contains
 232            * data, so start an async write. */
 233           copy->is_writing = TRUE;
 234           g_output_stream_write_async (copy->out,
 235               copy->buff[copy->curr_write],
 236               copy->count[copy->curr_write],
 237               0, copy->cancellable,
 238               write_done_cb, copy);
 239         }
 240     }
 241 }
 242
 243 static void
 244 copy_stream (GInputStream *in,
 245              GOutputStream *out,
 246              GCancellable *cancellable)
 247 {
 248   CopyData *copy;
 249   gint i;
 250
 251   g_return_if_fail (in != NULL);
 252   g_return_if_fail (out != NULL);
 253
 254   copy = g_new0 (CopyData, 1);
 255   copy->in = g_object_ref (in);
 256   copy->out = g_object_ref (out);
 257
 258   if (cancellable != NULL)
 259     copy->cancellable = g_object_ref (cancellable);
 260   else
 261     copy->cancellable = g_cancellable_new ();
 262
 263   for (i = 0; i < N_BUFFERS; i++)
 264     copy->buff[i] = g_malloc (BUFFER_SIZE);
 265
 266   schedule_next (copy);
 267 }
 268
 269 /* EmpathyTpFile object */
 270
 271 struct _EmpathyTpFilePriv {
 272   EmpathyContactFactory *factory;
 273   gchar *id;
 274   MissionControl *mc;
 275   TpChannel *channel;
 276
 277   EmpathyContact *contact;
 278   GFile *gfile;
 279   GInputStream *in_stream;
 280   GOutputStream *out_stream;
 281   gboolean incoming;
 282   gchar *filename;
 283   EmpFileTransferState state;
 284   EmpFileTransferStateChangeReason state_change_reason;
 285   guint64 size;
 286   guint64 transferred_bytes;
 287   time_t start_time;
 288   gchar *unix_socket_path;
 289   gchar *content_hash;
 290   EmpFileHashType content_hash_type;
 291   gchar *content_type;
 292   gchar *description;
 293   GCancellable *cancellable;
 294 };
 295
 296 enum {
 297   PROP_0,
 298   PROP_CHANNEL,
 299   PROP_STATE,
 300   PROP_INCOMING,
 301   PROP_FILENAME,
 302   PROP_SIZE,
 303   PROP_CONTENT_TYPE,
 304   PROP_TRANSFERRED_BYTES,
 305   PROP_CONTENT_HASH_TYPE,
 306   PROP_CONTENT_HASH,
 307 };
 308
 309 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 310
 311 static void
 312 empathy_tp_file_init (EmpathyTpFile *tp_file)
 313 {
 314   EmpathyTpFilePriv *priv;
 315
 316   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 317       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 318
 319   tp_file->priv = priv;
 320 }
 321
 322 static void
 323 tp_file_destroy_cb (TpChannel *file_channel,
 324                     EmpathyTpFile *tp_file)
 325 {
 326   DEBUG ("Channel Closed or CM crashed");
 327
 328   g_object_unref (tp_file->priv->channel);
 329   tp_file->priv->channel = NULL;
 330 }
 331
 332 static void
 333 tp_file_finalize (GObject *object)
 334 {
 335   EmpathyTpFile *tp_file;
 336
 337   tp_file = EMPATHY_TP_FILE (object);
 338
 339   if (tp_file->priv->channel)
 340     {
 341       DEBUG ("Closing channel..");
 342       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 343           tp_file_destroy_cb, object);
 344       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 345           NULL, NULL);
 346       g_object_unref (tp_file->priv->channel);
 347     }
 348
 349   if (tp_file->priv->factory)
 350     {
 351       g_object_unref (tp_file->priv->factory);
 352     }
 353   if (tp_file->priv->mc)
 354     {
 355       g_object_unref (tp_file->priv->mc);
 356     }
 357
 358   g_free (tp_file->priv->id);
 359   g_free (tp_file->priv->filename);
 360   g_free (tp_file->priv->unix_socket_path);
 361   g_free (tp_file->priv->description);
 362   g_free (tp_file->priv->content_hash);
 363   g_free (tp_file->priv->content_type);
 364
 365   if (tp_file->priv->gfile)
 366     g_object_unref (tp_file->priv->gfile);
 367
 368   if (tp_file->priv->in_stream)
 369     g_object_unref (tp_file->priv->in_stream);
 370
 371   if (tp_file->priv->out_stream)
 372     g_object_unref (tp_file->priv->out_stream);
 373
 374   if (tp_file->priv->contact)
 375     g_object_unref (tp_file->priv->contact);
 376
 377   if (tp_file->priv->cancellable)
 378     g_object_unref (tp_file->priv->cancellable);
 379
 380   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 381 }
 382
 383 static void
 384 tp_file_closed_cb (TpChannel *file_channel,
 385                    EmpathyTpFile *tp_file,
 386                    GObject *weak_object)
 387 {
 388   /* The channel is closed, do just like if the proxy was destroyed */
 389   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 390       tp_file_destroy_cb,
 391       tp_file);
 392   tp_file_destroy_cb (file_channel, tp_file);
 393 }
 394
 395 static gint
 396 _get_local_socket (EmpathyTpFile *tp_file)
 397 {
 398   gint fd;
 399   size_t path_len;
 400   struct sockaddr_un addr;
 401
 402   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 403     return -1;
 404
 405   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 406   if (fd < 0)
 407     return -1;
 408
 409   memset (&addr, 0, sizeof (addr));
 410   addr.sun_family = AF_UNIX;
 411   path_len = strlen (tp_file->priv->unix_socket_path);
 412   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 413
 414   if (connect (fd, (struct sockaddr*) &addr,
 415       sizeof (addr)) < 0)
 416     {
 417       close (fd);
 418       return -1;
 419     }
 420
 421   return fd;
 422 }
 423
 424 static void
 425 send_tp_file (EmpathyTpFile *tp_file)
 426 {
 427   gint socket_fd;
 428   GOutputStream *socket_stream;
 429
 430   DEBUG ("Sending file content: filename=%s",
 431       tp_file->priv->filename);
 432
 433   g_return_if_fail (tp_file->priv->in_stream);
 434
 435   socket_fd = _get_local_socket (tp_file);
 436   if (socket_fd < 0)
 437     {
 438       DEBUG ("failed to get local socket fd");
 439       return;
 440     }
 441   DEBUG ("got local socket fd");
 442   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 443
 444   tp_file->priv->cancellable = g_cancellable_new ();
 445
 446   copy_stream (tp_file->priv->in_stream, socket_stream,
 447       tp_file->priv->cancellable);
 448
 449   g_object_unref (socket_stream);
 450 }
 451
 452 static void
 453 receive_tp_file (EmpathyTpFile *tp_file)
 454 {
 455   GInputStream *socket_stream;
 456   gint socket_fd;
 457
 458   socket_fd = _get_local_socket (tp_file);
 459
 460   if (socket_fd < 0)
 461     return;
 462
 463   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 464
 465   tp_file->priv->cancellable = g_cancellable_new ();
 466
 467   copy_stream (socket_stream, tp_file->priv->out_stream,
 468       tp_file->priv->cancellable);
 469
 470   g_object_unref (socket_stream);
 471 }
 472
 473 static void
 474 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 475                           EmpFileTransferState state,
 476                           EmpFileTransferStateChangeReason reason,
 477                           EmpathyTpFile *tp_file)
 478 {
 479   DEBUG ("File transfer state changed: filename=%s, "
 480       "old state=%u, state=%u, reason=%u",
 481       tp_file->priv->filename, tp_file->priv->state, state, reason);
 482
 483   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 484     tp_file->priv->start_time = empathy_time_get_current ();
 485
 486   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 487       state, tp_file->priv->incoming ? "yes" : "no",
 488       tp_file->priv->in_stream ? "present" : "not present",
 489       tp_file->priv->out_stream ? "present" : "not present");
 490
 491   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 492       tp_file->priv->in_stream)
 493     send_tp_file (tp_file);
 494   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 495       tp_file->priv->out_stream)
 496     receive_tp_file (tp_file);
 497
 498   tp_file->priv->state = state;
 499   tp_file->priv->state_change_reason = reason;
 500
 501   g_object_notify (G_OBJECT (tp_file), "state");
 502 }
 503
 504 static void
 505 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 506                                       guint64 count,
 507                                       EmpathyTpFile *tp_file,
 508                                       GObject *weak_object)
 509 {
 510   if (tp_file->priv->transferred_bytes == count)
 511     return;
 512
 513   tp_file->priv->transferred_bytes = count;
 514
 515   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 516 }
 517
 518 static GObject *
 519 tp_file_constructor (GType type,
 520                      guint n_props,
 521                      GObjectConstructParam *props)
 522 {
 523   GObject *file_obj;
 524   EmpathyTpFile *tp_file;
 525   TpHandle handle;
 526   GHashTable *properties;
 527   McAccount *account;
 528
 529   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 530       n_props, props);
 531
 532   tp_file = EMPATHY_TP_FILE (file_obj);
 533
 534   tp_file->priv->factory = empathy_contact_factory_new ();
 535   tp_file->priv->mc = empathy_mission_control_new ();
 536
 537   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 538       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 539       tp_file,
 540       NULL, NULL, NULL);
 541
 542   emp_cli_channel_type_file_connect_to_file_transfer_state_changed (
 543       TP_PROXY (tp_file->priv->channel),
 544       (emp_cli_channel_type_file_signal_callback_file_transfer_state_changed)
 545           tp_file_state_changed_cb,
 546       tp_file,
 547       NULL, NULL, NULL);
 548
 549   emp_cli_channel_type_file_connect_to_transferred_bytes_changed (
 550       TP_PROXY (tp_file->priv->channel),
 551       (emp_cli_channel_type_file_signal_callback_transferred_bytes_changed)
 552           tp_file_transferred_bytes_changed_cb,
 553       tp_file,
 554       NULL, NULL, NULL);
 555
 556   account = empathy_channel_get_account (tp_file->priv->channel);
 557
 558   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 559   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 560       tp_file->priv->factory, account, (guint) handle);
 561
 562   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 563       -1, EMP_IFACE_CHANNEL_TYPE_FILE, &properties, NULL, NULL);
 564
 565   tp_file->priv->size = g_value_get_uint64 (
 566       g_hash_table_lookup (properties, "Size"));
 567
 568   tp_file->priv->state = g_value_get_uint (
 569       g_hash_table_lookup (properties, "State"));
 570
 571   tp_file->priv->state_change_reason =
 572       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 573
 574   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 575       g_hash_table_lookup (properties, "TransferredBytes"));
 576
 577   tp_file->priv->filename = g_value_dup_string (
 578       g_hash_table_lookup (properties, "Filename"));
 579
 580   tp_file->priv->content_hash = g_value_dup_string (
 581       g_hash_table_lookup (properties, "ContentHash"));
 582
 583   tp_file->priv->description = g_value_dup_string (
 584       g_hash_table_lookup (properties, "Description"));
 585
 586   if (tp_file->priv->state == EMP_FILE_TRANSFER_STATE_LOCAL_PENDING)
 587     tp_file->priv->incoming = TRUE;
 588
 589   g_hash_table_destroy (properties);
 590   g_object_unref (account);
 591
 592   return file_obj;
 593 }
 594
 595 static void
 596 tp_file_get_property (GObject *object,
 597                       guint param_id,
 598                       GValue *value,
 599                       GParamSpec *pspec)
 600 {
 601   EmpathyTpFile *tp_file;
 602
 603   tp_file = EMPATHY_TP_FILE (object);
 604
 605   switch (param_id)
 606     {
 607       case PROP_CHANNEL:
 608         g_value_set_object (value, tp_file->priv->channel);
 609         break;
 610       default:
 611         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 612         break;
 613     };
 614 }
 615
 616 static void
 617 tp_file_channel_set_dbus_property (gpointer proxy,
 618                                    const gchar *property,
 619                                    const GValue *value)
 620 {
 621         DEBUG ("Setting %s property", property);
 622         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 623             EMP_IFACE_CHANNEL_TYPE_FILE, property, value,
 624             NULL, NULL, NULL, NULL);
 625 }
 626
 627
 628 static void
 629 tp_file_set_property (GObject *object,
 630                       guint param_id,
 631                       const GValue *value,
 632                       GParamSpec *pspec)
 633 {
 634   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 635   switch (param_id)
 636     {
 637       case PROP_CHANNEL:
 638         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 639         break;
 640       case PROP_STATE:
 641         tp_file->priv->state = g_value_get_uint (value);
 642         break;
 643       case PROP_INCOMING:
 644         tp_file->priv->incoming = g_value_get_boolean (value);
 645         break;
 646       case PROP_FILENAME:
 647         g_free (tp_file->priv->filename);
 648         tp_file->priv->filename = g_value_dup_string (value);
 649         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 650             "Filename", value);
 651         break;
 652       case PROP_SIZE:
 653         tp_file->priv->size = g_value_get_uint64 (value);
 654         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 655             "Size", value);
 656         break;
 657       case PROP_CONTENT_TYPE:
 658         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 659             "ContentType", value);
 660         g_free (tp_file->priv->content_type);
 661         tp_file->priv->content_type = g_value_dup_string (value);
 662         break;
 663       case PROP_CONTENT_HASH:
 664         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 665             "ContentHash", value);
 666         g_free (tp_file->priv->content_hash);
 667         tp_file->priv->content_hash = g_value_dup_string (value);
 668         break;
 669       default:
 670         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 671         break;
 672     };
 673 }
 674
 675 /**
 676  * empathy_tp_file_new:
 677  * @channel: a Telepathy channel
 678  *
 679  * Creates a new #EmpathyTpFile wrapping @channel.
 680  *
 681  * Returns: a new #EmpathyTpFile
 682  */
 683 EmpathyTpFile *
 684 empathy_tp_file_new (TpChannel *channel)
 685 {
 686   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 687
 688   return g_object_new (EMPATHY_TYPE_TP_FILE,
 689       "channel", channel,
 690       NULL);
 691 }
 692
 693 /**
 694  * empathy_tp_file_get_id:
 695  * @tp_file: an #EmpathyTpFile
 696  *
 697  * Returns the ID of @tp_file.
 698  *
 699  * Returns: the ID
 700  */
 701 const gchar *
 702 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 703 {
 704   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 705
 706   return tp_file->priv->id;
 707 }
 708
 709 /**
 710  * empathy_tp_file_get_channel
 711  * @tp_file: an #EmpathyTpFile
 712  *
 713  * Returns the Telepathy file transfer channel
 714  *
 715  * Returns: the #TpChannel
 716  */
 717 TpChannel *
 718 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 719 {
 720   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 721
 722   return tp_file->priv->channel;
 723 }
 724
 725 static void
 726 tp_file_method_cb (TpProxy *proxy,
 727                    const GValue *address,
 728                    const GError *error,
 729                    gpointer user_data,
 730                    GObject *weak_object)
 731 {
 732   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 733
 734   if (error)
 735     {
 736       DEBUG ("Error: %s", error->message);
 737       return;
 738     }
 739
 740   if (tp_file->priv->unix_socket_path)
 741     g_free (tp_file->priv->unix_socket_path);
 742
 743   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 744
 745   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 746 }
 747
 748
 749 /**
 750  * empathy_tp_file_accept:
 751  * @tp_file: an #EmpathyTpFile
 752  *
 753  * Accepts a file transfer that's in the "local pending" state (i.e.
 754  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 755  */
 756 void
 757 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 758                         guint64 offset)
 759 {
 760   GValue nothing = { 0 };
 761
 762   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 763
 764   g_return_if_fail (tp_file->priv->out_stream != NULL);
 765
 766   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 767
 768   g_value_init (&nothing, G_TYPE_STRING);
 769   g_value_set_string (&nothing, "");
 770
 771   emp_cli_channel_type_file_call_accept_file (TP_PROXY (tp_file->priv->channel),
 772       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 773       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 774 }
 775
 776 /**
 777  * empathy_tp_file_offer:
 778  * @tp_file: an #EmpathyTpFile
 779  *
 780  * Offers a file transfer that's in the "not offered" state (i.e.
 781  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 782  */
 783 void
 784 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 785 {
 786   GValue nothing = { 0 };
 787
 788   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 789
 790   g_value_init (&nothing, G_TYPE_STRING);
 791   g_value_set_string (&nothing, "");
 792
 793   emp_cli_channel_type_file_call_offer_file (
 794       TP_PROXY (tp_file->priv->channel), -1,
 795       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 796       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 797 }
 798
 799 EmpathyContact *
 800 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 801 {
 802   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 803   return tp_file->priv->contact;
 804 }
 805
 806 GFile *
 807 empathy_tp_file_get_gfile (EmpathyTpFile *tp_file)
 808 {
 809   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 810   return g_object_ref (tp_file->priv->gfile);
 811 }
 812
 813 const gchar *
 814 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 815 {
 816   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 817   return tp_file->priv->filename;
 818 }
 819
 820 gboolean
 821 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 822 {
 823   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 824   return tp_file->priv->incoming;
 825 }
 826
 827 EmpFileTransferState
 828 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 829 {
 830   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 831       EMP_FILE_TRANSFER_STATE_NONE);
 832   return tp_file->priv->state;
 833 }
 834
 835 EmpFileTransferStateChangeReason
 836 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 837 {
 838   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 839       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 840
 841   return tp_file->priv->state_change_reason;
 842 }
 843
 844 guint64
 845 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 846 {
 847   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 848       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 849   return tp_file->priv->size;
 850 }
 851
 852 guint64
 853 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 854 {
 855   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 856   return tp_file->priv->transferred_bytes;
 857 }
 858
 859 gint
 860 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 861 {
 862   time_t curr_time, elapsed_time;
 863   gdouble time_per_byte;
 864   gdouble remaining_time;
 865
 866   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 867
 868   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 869     return -1;
 870
 871   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 872     return 0;
 873
 874   curr_time = empathy_time_get_current ();
 875   elapsed_time = curr_time - tp_file->priv->start_time;
 876   time_per_byte = (gdouble) elapsed_time /
 877       (gdouble) tp_file->priv->transferred_bytes;
 878   remaining_time = time_per_byte * (tp_file->priv->size -
 879       tp_file->priv->transferred_bytes);
 880
 881   return (gint) remaining_time;
 882 }
 883
 884 void
 885 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 886 {
 887   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 888
 889   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 890
 891   g_cancellable_cancel (tp_file->priv->cancellable);
 892 }
 893
 894 void
 895 empathy_tp_file_set_gfile (EmpathyTpFile *tp_file,
 896                            GFile *gfile,
 897                            GError **error)
 898 {
 899   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 900   g_return_if_fail (gfile);
 901
 902   if (tp_file->priv->gfile == gfile)
 903     return;
 904
 905   tp_file->priv->gfile = g_object_ref (gfile);
 906
 907   if (!tp_file->priv->incoming)
 908     {
 909       GInputStream *in_stream;
 910
 911       in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, NULL));
 912
 913       if (tp_file->priv->in_stream)
 914         g_object_unref (tp_file->priv->in_stream);
 915
 916       tp_file->priv->in_stream = g_object_ref (in_stream);
 917     }
 918   else
 919     {
 920       GOutputStream *out_stream;
 921       gchar *filename;
 922
 923       out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL, FALSE,
 924         0, NULL, error));
 925
 926       if (*error)
 927         return;
 928
 929       if (tp_file->priv->out_stream == out_stream)
 930         return;
 931
 932       if (tp_file->priv->out_stream)
 933         g_object_unref (tp_file->priv->out_stream);
 934
 935       tp_file->priv->out_stream = g_object_ref (out_stream);
 936
 937       filename = g_file_get_basename (gfile);
 938       empathy_tp_file_set_filename (tp_file, filename);
 939
 940       g_free (filename);
 941     }
 942 }
 943
 944 void
 945 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 946                               const gchar *filename)
 947 {
 948   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 949   g_return_if_fail (filename != NULL);
 950
 951   if (tp_file->priv->filename && strcmp (filename,
 952       tp_file->priv->filename) == 0)
 953     return;
 954
 955   g_free (tp_file->priv->filename);
 956   tp_file->priv->filename = g_strdup (filename);
 957
 958   g_object_notify (G_OBJECT (tp_file), "filename");
 959 }
 960
 961 static void
 962 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 963 {
 964   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 965
 966   object_class->finalize = tp_file_finalize;
 967   object_class->constructor = tp_file_constructor;
 968   object_class->get_property = tp_file_get_property;
 969   object_class->set_property = tp_file_set_property;
 970
 971   /* Construct-only properties */
 972   g_object_class_install_property (object_class,
 973       PROP_CHANNEL,
 974       g_param_spec_object ("channel",
 975           "telepathy channel",
 976           "The file transfer channel",
 977           TP_TYPE_CHANNEL,
 978           G_PARAM_READWRITE |
 979           G_PARAM_CONSTRUCT_ONLY));
 980
 981   g_object_class_install_property (object_class,
 982       PROP_STATE,
 983       g_param_spec_uint ("state",
 984           "state of the transfer",
 985           "The file transfer state",
 986           0,
 987           G_MAXUINT,
 988           G_MAXUINT,
 989           G_PARAM_READWRITE |
 990           G_PARAM_CONSTRUCT));
 991
 992   g_object_class_install_property (object_class,
 993       PROP_INCOMING,
 994       g_param_spec_boolean ("incoming",
 995           "incoming",
 996           "Whether the transfer is incoming",
 997           FALSE,
 998           G_PARAM_READWRITE |
 999           G_PARAM_CONSTRUCT));
1000
1001   g_object_class_install_property (object_class,
1002       PROP_FILENAME,
1003       g_param_spec_string ("filename",
1004           "name of the transfer",
1005           "The file transfer filename",
1006           "",
1007           G_PARAM_READWRITE));
1008
1009   g_object_class_install_property (object_class,
1010       PROP_SIZE,
1011       g_param_spec_uint64 ("size",
1012           "size of the file",
1013           "The file transfer size",
1014           0,
1015           G_MAXUINT64,
1016           G_MAXUINT64,
1017           G_PARAM_READWRITE));
1018
1019   g_object_class_install_property (object_class,
1020       PROP_CONTENT_TYPE,
1021       g_param_spec_string ("content-type",
1022           "file transfer content-type",
1023           "The file transfer content-type",
1024           "",
1025           G_PARAM_READWRITE));
1026
1027   g_object_class_install_property (object_class,
1028       PROP_CONTENT_HASH_TYPE,
1029       g_param_spec_uint ("content-hash-type",
1030           "file transfer hash type",
1031           "The type of the file transfer hash",
1032           0,
1033           G_MAXUINT,
1034           0,
1035           G_PARAM_READWRITE));
1036
1037   g_object_class_install_property (object_class,
1038       PROP_CONTENT_HASH,
1039       g_param_spec_string ("content-hash",
1040           "file transfer hash",
1041           "The hash of the transfer's contents",
1042           "",
1043           G_PARAM_READWRITE));
1044
1045   g_object_class_install_property (object_class,
1046       PROP_TRANSFERRED_BYTES,
1047       g_param_spec_uint64 ("transferred-bytes",
1048           "bytes transferred",
1049           "The number of bytes transferred",
1050           0,
1051           G_MAXUINT64,
1052           0,
1053           G_PARAM_READWRITE));
1054
1055   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1056 }