libempathy/empathy-tp-file.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  * Copyright (C) 2007 Marco Barisione <marco@barisione.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Marco Barisione <marco@barisione.org>
  21  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  22  */
  23
  24 #include <config.h>
  25
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <sys/types.h>
  29 #include <sys/socket.h>
  30 #include <sys/un.h>
  31
  32 #include <glib/gi18n.h>
  33
  34 #include <gio/gio.h>
  35 #include <gio/gunixinputstream.h>
  36 #include <gio/gunixoutputstream.h>
  37
  38 #include <telepathy-glib/proxy-subclass.h>
  39
  40 #include "empathy-tp-file.h"
  41 #include "empathy-contact-factory.h"
  42 #include "empathy-marshal.h"
  43 #include "empathy-time.h"
  44 #include "empathy-utils.h"
  45
  46 #define DEBUG_FLAG EMPATHY_DEBUG_FT
  47 #include "empathy-debug.h"
  48
  49 /**
  50  * SECTION:empathy-tp-file
  51  * @short_description: File channel
  52  * @see_also: #EmpathyTpFile, #EmpathyContact, empathy_dispatcher_send_file()
  53  * @include: libempthy/empathy-tp-file.h
  54  *
  55  * The #EmpathyTpFile object represents a Telepathy file channel.
  56  */
  57
  58 /**
  59  * EMPATHY_TP_FILE_UNKNOWN_SIZE:
  60  *
  61  * Value used for the "size" or "estimated-size" properties when the size of
  62  * the transferred file is unknown.
  63  */
  64
  65 /* Functions to copy the content of a GInputStream to a GOutputStream */
  66
  67 #define N_BUFFERS 2
  68 #define BUFFER_SIZE 4096
  69
  70 typedef struct {
  71   GInputStream *in;
  72   GOutputStream *out;
  73   GCancellable  *cancellable;
  74   char *buff[N_BUFFERS]; /* the temporary buffers */
  75   gsize count[N_BUFFERS]; /* how many bytes are used in the buffers */
  76   gboolean is_full[N_BUFFERS]; /* whether the buffers contain data */
  77   gint curr_read; /* index of the buffer used for reading */
  78   gint curr_write; /* index of the buffer used for writing */
  79   gboolean is_reading; /* we are reading */
  80   gboolean is_writing; /* we are writing */
  81   guint n_closed; /* number of streams that have been closed */
  82   gint ref_count;
  83 } CopyData;
  84
  85 static void schedule_next (CopyData *copy);
  86
  87 static void
  88 copy_data_unref (CopyData *copy)
  89 {
  90   if (--copy->ref_count == 0)
  91     {
  92       gint i;
  93
  94       /* Free the data only if both the input and output streams have
  95        * been closed. */
  96       copy->n_closed++;
  97       if (copy->n_closed < 2)
  98         return;
  99
 100       if (copy->in != NULL)
 101         g_object_unref (copy->in);
 102
 103       if (copy->out != NULL)
 104         g_object_unref (copy->out);
 105
 106       for (i = 0; i < N_BUFFERS; i++)
 107         g_free (copy->buff[i]);
 108
 109       g_object_unref (copy->cancellable);
 110       g_free (copy);
 111     }
 112 }
 113
 114 static void
 115 io_error (CopyData *copy,
 116           GError *error)
 117 {
 118   g_cancellable_cancel (copy->cancellable);
 119
 120   if (error == NULL)
 121     g_warning ("I/O error");
 122   else if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
 123     ; /* Ignore cancellations */
 124   else
 125     g_warning ("I/O error: %d: %s\n", error->code, error->message);
 126
 127   if (copy->in != NULL)
 128     g_input_stream_close (copy->in, NULL, NULL);
 129
 130   if (copy->out != NULL)
 131     g_output_stream_close (copy->out, NULL, NULL);
 132
 133   copy_data_unref (copy);
 134 }
 135
 136 static void
 137 close_done (GObject *source_object,
 138             GAsyncResult *res,
 139             gpointer user_data)
 140 {
 141   CopyData *copy = user_data;
 142
 143   g_object_unref (source_object);
 144   copy_data_unref (copy);
 145 }
 146
 147 static void
 148 write_done_cb (GObject *source_object,
 149                GAsyncResult *res,
 150                gpointer user_data)
 151 {
 152   CopyData *copy = user_data;
 153   gssize count_write;
 154   GError *error = NULL;
 155
 156   count_write = g_output_stream_write_finish (copy->out, res, &error);
 157
 158   if (count_write <= 0)
 159     {
 160       io_error (copy, error);
 161       g_error_free (error);
 162       return;
 163     }
 164
 165   copy->is_full[copy->curr_write] = FALSE;
 166   copy->curr_write = (copy->curr_write + 1) % N_BUFFERS;
 167   copy->is_writing = FALSE;
 168
 169   schedule_next (copy);
 170 }
 171
 172 static void
 173 read_done_cb (GObject *source_object,
 174               GAsyncResult *res,
 175               gpointer user_data)
 176 {
 177   CopyData *copy = user_data;
 178   gssize count_read;
 179   GError *error = NULL;
 180
 181   count_read = g_input_stream_read_finish (copy->in, res, &error);
 182
 183   if (count_read == 0)
 184     {
 185       g_input_stream_close_async (copy->in, 0, copy->cancellable,
 186           close_done, copy);
 187       copy->in = NULL;
 188     }
 189   else if (count_read < 0)
 190     {
 191       io_error (copy, error);
 192       g_error_free (error);
 193       return;
 194     }
 195
 196   copy->count[copy->curr_read] = count_read;
 197   copy->is_full[copy->curr_read] = TRUE;
 198   copy->curr_read = (copy->curr_read + 1) % N_BUFFERS;
 199   copy->is_reading = FALSE;
 200
 201   schedule_next (copy);
 202 }
 203
 204 static void
 205 schedule_next (CopyData *copy)
 206 {
 207   if (copy->in != NULL &&
 208       !copy->is_reading &&
 209       !copy->is_full[copy->curr_read])
 210     {
 211       /* We are not reading and the current buffer is empty, so
 212        * start an async read. */
 213       copy->is_reading = TRUE;
 214       g_input_stream_read_async (copy->in,
 215           copy->buff[copy->curr_read],
 216           BUFFER_SIZE, 0, copy->cancellable,
 217           read_done_cb, copy);
 218     }
 219
 220   if (!copy->is_writing &&
 221       copy->is_full[copy->curr_write])
 222     {
 223       if (copy->count[copy->curr_write] == 0)
 224         {
 225           /* The last read on the buffer read 0 bytes, this
 226            * means that we got an EOF, so we can close
 227            * the output channel. */
 228           g_output_stream_close_async (copy->out, 0,
 229               copy->cancellable,
 230               close_done, copy);
 231       copy->out = NULL;
 232         }
 233       else
 234         {
 235           /* We are not writing and the current buffer contains
 236            * data, so start an async write. */
 237           copy->is_writing = TRUE;
 238           g_output_stream_write_async (copy->out,
 239               copy->buff[copy->curr_write],
 240               copy->count[copy->curr_write],
 241               0, copy->cancellable,
 242               write_done_cb, copy);
 243         }
 244     }
 245 }
 246
 247 static void
 248 copy_stream (GInputStream *in,
 249              GOutputStream *out,
 250              GCancellable *cancellable)
 251 {
 252   CopyData *copy;
 253   gint i;
 254
 255   g_return_if_fail (in != NULL);
 256   g_return_if_fail (out != NULL);
 257
 258   copy = g_new0 (CopyData, 1);
 259   copy->in = g_object_ref (in);
 260   copy->out = g_object_ref (out);
 261   copy->ref_count = 1;
 262
 263   if (cancellable != NULL)
 264     copy->cancellable = g_object_ref (cancellable);
 265   else
 266     copy->cancellable = g_cancellable_new ();
 267
 268   for (i = 0; i < N_BUFFERS; i++)
 269     copy->buff[i] = g_malloc (BUFFER_SIZE);
 270
 271   schedule_next (copy);
 272 }
 273
 274 /* EmpathyTpFile object */
 275
 276 struct _EmpathyTpFilePriv {
 277   EmpathyContactFactory *factory;
 278   gchar *id;
 279   MissionControl *mc;
 280   TpChannel *channel;
 281
 282   EmpathyContact *contact;
 283   GFile *gfile;
 284   GInputStream *in_stream;
 285   GOutputStream *out_stream;
 286   gboolean incoming;
 287   gchar *filename;
 288   EmpFileTransferState state;
 289   EmpFileTransferStateChangeReason state_change_reason;
 290   guint64 size;
 291   guint64 transferred_bytes;
 292   time_t start_time;
 293   gchar *unix_socket_path;
 294   gchar *content_hash;
 295   EmpFileHashType content_hash_type;
 296   gchar *content_type;
 297   gchar *description;
 298   GCancellable *cancellable;
 299 };
 300
 301 enum {
 302   PROP_0,
 303   PROP_CHANNEL,
 304   PROP_STATE,
 305   PROP_INCOMING,
 306   PROP_FILENAME,
 307   PROP_SIZE,
 308   PROP_CONTENT_TYPE,
 309   PROP_TRANSFERRED_BYTES,
 310   PROP_CONTENT_HASH_TYPE,
 311   PROP_CONTENT_HASH,
 312 };
 313
 314 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 315
 316 static void
 317 empathy_tp_file_init (EmpathyTpFile *tp_file)
 318 {
 319   EmpathyTpFilePriv *priv;
 320
 321   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 322       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 323
 324   tp_file->priv = priv;
 325 }
 326
 327 static void
 328 tp_file_destroy_cb (TpChannel *file_channel,
 329                     EmpathyTpFile *tp_file)
 330 {
 331   DEBUG ("Channel Closed or CM crashed");
 332
 333   g_object_unref (tp_file->priv->channel);
 334   tp_file->priv->channel = NULL;
 335 }
 336
 337 static void
 338 tp_file_finalize (GObject *object)
 339 {
 340   EmpathyTpFile *tp_file;
 341
 342   tp_file = EMPATHY_TP_FILE (object);
 343
 344   if (tp_file->priv->channel)
 345     {
 346       DEBUG ("Closing channel..");
 347       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 348           tp_file_destroy_cb, object);
 349       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 350           NULL, NULL);
 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->gfile)
 371     g_object_unref (tp_file->priv->gfile);
 372
 373   if (tp_file->priv->in_stream)
 374     g_object_unref (tp_file->priv->in_stream);
 375
 376   if (tp_file->priv->out_stream)
 377     g_object_unref (tp_file->priv->out_stream);
 378
 379   if (tp_file->priv->contact)
 380     g_object_unref (tp_file->priv->contact);
 381
 382   if (tp_file->priv->cancellable)
 383     g_object_unref (tp_file->priv->cancellable);
 384
 385   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 386 }
 387
 388 static void
 389 tp_file_closed_cb (TpChannel *file_channel,
 390                    EmpathyTpFile *tp_file,
 391                    GObject *weak_object)
 392 {
 393   /* The channel is closed, do just like if the proxy was destroyed */
 394   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 395       tp_file_destroy_cb,
 396       tp_file);
 397   tp_file_destroy_cb (file_channel, tp_file);
 398 }
 399
 400 static gint
 401 _get_local_socket (EmpathyTpFile *tp_file)
 402 {
 403   gint fd;
 404   size_t path_len;
 405   struct sockaddr_un addr;
 406
 407   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 408     return -1;
 409
 410   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 411   if (fd < 0)
 412     return -1;
 413
 414   memset (&addr, 0, sizeof (addr));
 415   addr.sun_family = AF_UNIX;
 416   path_len = strlen (tp_file->priv->unix_socket_path);
 417   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 418
 419   if (connect (fd, (struct sockaddr*) &addr,
 420       sizeof (addr)) < 0)
 421     {
 422       close (fd);
 423       return -1;
 424     }
 425
 426   return fd;
 427 }
 428
 429 static void
 430 send_tp_file (EmpathyTpFile *tp_file)
 431 {
 432   gint socket_fd;
 433   GOutputStream *socket_stream;
 434
 435   DEBUG ("Sending file content: filename=%s",
 436       tp_file->priv->filename);
 437
 438   g_return_if_fail (tp_file->priv->in_stream);
 439
 440   socket_fd = _get_local_socket (tp_file);
 441   if (socket_fd < 0)
 442     {
 443       DEBUG ("failed to get local socket fd");
 444       return;
 445     }
 446   DEBUG ("got local socket fd");
 447   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 448
 449   tp_file->priv->cancellable = g_cancellable_new ();
 450
 451   copy_stream (tp_file->priv->in_stream, socket_stream,
 452       tp_file->priv->cancellable);
 453
 454   g_object_unref (socket_stream);
 455 }
 456
 457 static void
 458 receive_tp_file (EmpathyTpFile *tp_file)
 459 {
 460   GInputStream *socket_stream;
 461   gint socket_fd;
 462
 463   socket_fd = _get_local_socket (tp_file);
 464
 465   if (socket_fd < 0)
 466     return;
 467
 468   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 469
 470   tp_file->priv->cancellable = g_cancellable_new ();
 471
 472   copy_stream (socket_stream, tp_file->priv->out_stream,
 473       tp_file->priv->cancellable);
 474
 475   g_object_unref (socket_stream);
 476 }
 477
 478 static void
 479 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 480                           EmpFileTransferState state,
 481                           EmpFileTransferStateChangeReason reason,
 482                           EmpathyTpFile *tp_file)
 483 {
 484   DEBUG ("File transfer state changed: filename=%s, "
 485       "old state=%u, state=%u, reason=%u",
 486       tp_file->priv->filename, tp_file->priv->state, state, reason);
 487
 488   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 489     tp_file->priv->start_time = empathy_time_get_current ();
 490
 491   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 492       state, tp_file->priv->incoming ? "yes" : "no",
 493       tp_file->priv->in_stream ? "present" : "not present",
 494       tp_file->priv->out_stream ? "present" : "not present");
 495
 496   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 497       tp_file->priv->in_stream)
 498     send_tp_file (tp_file);
 499   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 500       tp_file->priv->out_stream)
 501     receive_tp_file (tp_file);
 502
 503   tp_file->priv->state = state;
 504   tp_file->priv->state_change_reason = reason;
 505
 506   g_object_notify (G_OBJECT (tp_file), "state");
 507 }
 508
 509 static void
 510 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 511                                       guint64 count,
 512                                       EmpathyTpFile *tp_file,
 513                                       GObject *weak_object)
 514 {
 515   if (tp_file->priv->transferred_bytes == count)
 516     return;
 517
 518   tp_file->priv->transferred_bytes = count;
 519
 520   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 521 }
 522
 523 static GObject *
 524 tp_file_constructor (GType type,
 525                      guint n_props,
 526                      GObjectConstructParam *props)
 527 {
 528   GObject *file_obj;
 529   EmpathyTpFile *tp_file;
 530   TpHandle handle;
 531   GHashTable *properties;
 532   McAccount *account;
 533   GValue *requested;
 534
 535   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 536       n_props, props);
 537
 538   tp_file = EMPATHY_TP_FILE (file_obj);
 539
 540   tp_file->priv->factory = empathy_contact_factory_new ();
 541   tp_file->priv->mc = empathy_mission_control_new ();
 542
 543   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 544       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 545       tp_file,
 546       NULL, NULL, NULL);
 547
 548   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 549       TP_PROXY (tp_file->priv->channel),
 550       (emp_cli_channel_type_file_transfer_signal_callback_file_transfer_state_changed)
 551           tp_file_state_changed_cb,
 552       tp_file,
 553       NULL, NULL, NULL);
 554
 555   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 556       TP_PROXY (tp_file->priv->channel),
 557       (emp_cli_channel_type_file_transfer_signal_callback_transferred_bytes_changed)
 558           tp_file_transferred_bytes_changed_cb,
 559       tp_file,
 560       NULL, NULL, NULL);
 561
 562   account = empathy_channel_get_account (tp_file->priv->channel);
 563
 564   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 565   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 566       tp_file->priv->factory, account, (guint) handle);
 567
 568   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 569       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 570
 571   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 572       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 573
 574   tp_file->priv->size = g_value_get_uint64 (
 575       g_hash_table_lookup (properties, "Size"));
 576
 577   tp_file->priv->state = g_value_get_uint (
 578       g_hash_table_lookup (properties, "State"));
 579
 580   tp_file->priv->state_change_reason =
 581       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 582
 583   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 584       g_hash_table_lookup (properties, "TransferredBytes"));
 585
 586   tp_file->priv->filename = g_value_dup_string (
 587       g_hash_table_lookup (properties, "Filename"));
 588
 589   tp_file->priv->content_hash = g_value_dup_string (
 590       g_hash_table_lookup (properties, "ContentHash"));
 591
 592   tp_file->priv->content_hash_type = g_value_get_uint (
 593       g_hash_table_lookup (properties, "ContentHashType"));
 594
 595   tp_file->priv->content_type = g_value_dup_string (
 596       g_hash_table_lookup (properties, "ContentType"));
 597
 598   tp_file->priv->description = g_value_dup_string (
 599       g_hash_table_lookup (properties, "Description"));
 600
 601   tp_file->priv->incoming = !g_value_get_boolean (requested);
 602
 603   g_hash_table_destroy (properties);
 604   g_object_unref (account);
 605   g_value_unset (requested);
 606
 607   return file_obj;
 608 }
 609
 610 static void
 611 tp_file_get_property (GObject *object,
 612                       guint param_id,
 613                       GValue *value,
 614                       GParamSpec *pspec)
 615 {
 616   EmpathyTpFile *tp_file;
 617
 618   tp_file = EMPATHY_TP_FILE (object);
 619
 620   switch (param_id)
 621     {
 622       case PROP_CHANNEL:
 623         g_value_set_object (value, tp_file->priv->channel);
 624         break;
 625       default:
 626         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 627         break;
 628     };
 629 }
 630
 631 static void
 632 tp_file_channel_set_dbus_property (gpointer proxy,
 633                                    const gchar *property,
 634                                    const GValue *value)
 635 {
 636         DEBUG ("Setting %s property", property);
 637         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 638             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 639             NULL, NULL, NULL, NULL);
 640 }
 641
 642
 643 static void
 644 tp_file_set_property (GObject *object,
 645                       guint param_id,
 646                       const GValue *value,
 647                       GParamSpec *pspec)
 648 {
 649   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 650   switch (param_id)
 651     {
 652       case PROP_CHANNEL:
 653         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 654         break;
 655       case PROP_STATE:
 656         tp_file->priv->state = g_value_get_uint (value);
 657         break;
 658       case PROP_INCOMING:
 659         tp_file->priv->incoming = g_value_get_boolean (value);
 660         break;
 661       case PROP_FILENAME:
 662         g_free (tp_file->priv->filename);
 663         tp_file->priv->filename = g_value_dup_string (value);
 664         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 665             "Filename", value);
 666         break;
 667       case PROP_SIZE:
 668         tp_file->priv->size = g_value_get_uint64 (value);
 669         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 670             "Size", value);
 671         break;
 672       case PROP_CONTENT_TYPE:
 673         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 674             "ContentType", value);
 675         g_free (tp_file->priv->content_type);
 676         tp_file->priv->content_type = g_value_dup_string (value);
 677         break;
 678       case PROP_CONTENT_HASH:
 679         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 680             "ContentHash", value);
 681         g_free (tp_file->priv->content_hash);
 682         tp_file->priv->content_hash = g_value_dup_string (value);
 683         break;
 684       default:
 685         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 686         break;
 687     };
 688 }
 689
 690 /**
 691  * empathy_tp_file_new:
 692  * @channel: a Telepathy channel
 693  *
 694  * Creates a new #EmpathyTpFile wrapping @channel.
 695  *
 696  * Returns: a new #EmpathyTpFile
 697  */
 698 EmpathyTpFile *
 699 empathy_tp_file_new (TpChannel *channel)
 700 {
 701   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 702
 703   return g_object_new (EMPATHY_TYPE_TP_FILE,
 704       "channel", channel,
 705       NULL);
 706 }
 707
 708 /**
 709  * empathy_tp_file_get_id:
 710  * @tp_file: an #EmpathyTpFile
 711  *
 712  * Returns the ID of @tp_file.
 713  *
 714  * Returns: the ID
 715  */
 716 const gchar *
 717 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 718 {
 719   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 720
 721   return tp_file->priv->id;
 722 }
 723
 724 /**
 725  * empathy_tp_file_get_channel
 726  * @tp_file: an #EmpathyTpFile
 727  *
 728  * Returns the Telepathy file transfer channel
 729  *
 730  * Returns: the #TpChannel
 731  */
 732 TpChannel *
 733 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 734 {
 735   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 736
 737   return tp_file->priv->channel;
 738 }
 739
 740 static void
 741 tp_file_method_cb (TpProxy *proxy,
 742                    const GValue *address,
 743                    const GError *error,
 744                    gpointer user_data,
 745                    GObject *weak_object)
 746 {
 747   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 748
 749   if (error)
 750     {
 751       DEBUG ("Error: %s", error->message);
 752       return;
 753     }
 754
 755   if (tp_file->priv->unix_socket_path)
 756     g_free (tp_file->priv->unix_socket_path);
 757
 758   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 759
 760   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 761 }
 762
 763
 764 /**
 765  * empathy_tp_file_accept:
 766  * @tp_file: an #EmpathyTpFile
 767  *
 768  * Accepts a file transfer that's in the "local pending" state (i.e.
 769  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 770  */
 771 void
 772 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 773                         guint64 offset)
 774 {
 775   GValue nothing = { 0 };
 776
 777   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 778
 779   g_return_if_fail (tp_file->priv->out_stream != NULL);
 780
 781   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 782
 783   g_value_init (&nothing, G_TYPE_STRING);
 784   g_value_set_string (&nothing, "");
 785
 786   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 787       tp_file->priv->channel),
 788       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 789       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 790 }
 791
 792 /**
 793  * empathy_tp_file_offer:
 794  * @tp_file: an #EmpathyTpFile
 795  *
 796  * Offers a file transfer that's in the "not offered" state (i.e.
 797  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 798  */
 799 void
 800 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 801 {
 802   GValue nothing = { 0 };
 803
 804   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 805
 806   g_value_init (&nothing, G_TYPE_STRING);
 807   g_value_set_string (&nothing, "");
 808
 809   emp_cli_channel_type_file_transfer_call_provide_file (
 810       TP_PROXY (tp_file->priv->channel), -1,
 811       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 812       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 813 }
 814
 815 EmpathyContact *
 816 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 817 {
 818   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 819   return tp_file->priv->contact;
 820 }
 821
 822 GFile *
 823 empathy_tp_file_get_gfile (EmpathyTpFile *tp_file)
 824 {
 825   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 826   return g_object_ref (tp_file->priv->gfile);
 827 }
 828
 829 const gchar *
 830 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 831 {
 832   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 833   return tp_file->priv->filename;
 834 }
 835
 836 gboolean
 837 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 838 {
 839   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 840   return tp_file->priv->incoming;
 841 }
 842
 843 EmpFileTransferState
 844 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 845 {
 846   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 847       EMP_FILE_TRANSFER_STATE_NONE);
 848   return tp_file->priv->state;
 849 }
 850
 851 EmpFileTransferStateChangeReason
 852 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 853 {
 854   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 855       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 856
 857   return tp_file->priv->state_change_reason;
 858 }
 859
 860 guint64
 861 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 862 {
 863   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 864       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 865   return tp_file->priv->size;
 866 }
 867
 868 guint64
 869 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 870 {
 871   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 872   return tp_file->priv->transferred_bytes;
 873 }
 874
 875 gint
 876 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 877 {
 878   time_t curr_time, elapsed_time;
 879   gdouble time_per_byte;
 880   gdouble remaining_time;
 881
 882   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 883
 884   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 885     return -1;
 886
 887   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 888     return 0;
 889
 890   curr_time = empathy_time_get_current ();
 891   elapsed_time = curr_time - tp_file->priv->start_time;
 892   time_per_byte = (gdouble) elapsed_time /
 893       (gdouble) tp_file->priv->transferred_bytes;
 894   remaining_time = time_per_byte * (tp_file->priv->size -
 895       tp_file->priv->transferred_bytes);
 896
 897   return (gint) remaining_time;
 898 }
 899
 900 void
 901 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 902 {
 903   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 904
 905   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 906
 907   g_cancellable_cancel (tp_file->priv->cancellable);
 908 }
 909
 910 void
 911 empathy_tp_file_set_gfile (EmpathyTpFile *tp_file,
 912                            GFile *gfile,
 913                            GError **error)
 914 {
 915   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 916   g_return_if_fail (gfile);
 917
 918   if (tp_file->priv->gfile == gfile)
 919     return;
 920
 921   tp_file->priv->gfile = g_object_ref (gfile);
 922
 923   if (!tp_file->priv->incoming)
 924     {
 925       GInputStream *in_stream;
 926
 927       in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, NULL));
 928
 929       if (tp_file->priv->in_stream)
 930         g_object_unref (tp_file->priv->in_stream);
 931
 932       tp_file->priv->in_stream = g_object_ref (in_stream);
 933     }
 934   else
 935     {
 936       GOutputStream *out_stream;
 937       gchar *filename;
 938
 939       out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL, FALSE,
 940         0, NULL, error));
 941
 942       if (*error)
 943         return;
 944
 945       if (tp_file->priv->out_stream == out_stream)
 946         return;
 947
 948       if (tp_file->priv->out_stream)
 949         g_object_unref (tp_file->priv->out_stream);
 950
 951       tp_file->priv->out_stream = g_object_ref (out_stream);
 952
 953       filename = g_file_get_basename (gfile);
 954       empathy_tp_file_set_filename (tp_file, filename);
 955
 956       g_free (filename);
 957     }
 958 }
 959
 960 void
 961 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 962                               const gchar *filename)
 963 {
 964   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 965   g_return_if_fail (filename != NULL);
 966
 967   if (tp_file->priv->filename && strcmp (filename,
 968       tp_file->priv->filename) == 0)
 969     return;
 970
 971   g_free (tp_file->priv->filename);
 972   tp_file->priv->filename = g_strdup (filename);
 973
 974   g_object_notify (G_OBJECT (tp_file), "filename");
 975 }
 976
 977 static void
 978 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 979 {
 980   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 981
 982   object_class->finalize = tp_file_finalize;
 983   object_class->constructor = tp_file_constructor;
 984   object_class->get_property = tp_file_get_property;
 985   object_class->set_property = tp_file_set_property;
 986
 987   /* Construct-only properties */
 988   g_object_class_install_property (object_class,
 989       PROP_CHANNEL,
 990       g_param_spec_object ("channel",
 991           "telepathy channel",
 992           "The file transfer channel",
 993           TP_TYPE_CHANNEL,
 994           G_PARAM_READWRITE |
 995           G_PARAM_CONSTRUCT_ONLY));
 996
 997   g_object_class_install_property (object_class,
 998       PROP_STATE,
 999       g_param_spec_uint ("state",
1000           "state of the transfer",
1001           "The file transfer state",
1002           0,
1003           G_MAXUINT,
1004           G_MAXUINT,
1005           G_PARAM_READWRITE |
1006           G_PARAM_CONSTRUCT));
1007
1008   g_object_class_install_property (object_class,
1009       PROP_INCOMING,
1010       g_param_spec_boolean ("incoming",
1011           "incoming",
1012           "Whether the transfer is incoming",
1013           FALSE,
1014           G_PARAM_READWRITE |
1015           G_PARAM_CONSTRUCT));
1016
1017   g_object_class_install_property (object_class,
1018       PROP_FILENAME,
1019       g_param_spec_string ("filename",
1020           "name of the transfer",
1021           "The file transfer filename",
1022           "",
1023           G_PARAM_READWRITE));
1024
1025   g_object_class_install_property (object_class,
1026       PROP_SIZE,
1027       g_param_spec_uint64 ("size",
1028           "size of the file",
1029           "The file transfer size",
1030           0,
1031           G_MAXUINT64,
1032           G_MAXUINT64,
1033           G_PARAM_READWRITE));
1034
1035   g_object_class_install_property (object_class,
1036       PROP_CONTENT_TYPE,
1037       g_param_spec_string ("content-type",
1038           "file transfer content-type",
1039           "The file transfer content-type",
1040           "",
1041           G_PARAM_READWRITE));
1042
1043   g_object_class_install_property (object_class,
1044       PROP_CONTENT_HASH_TYPE,
1045       g_param_spec_uint ("content-hash-type",
1046           "file transfer hash type",
1047           "The type of the file transfer hash",
1048           0,
1049           G_MAXUINT,
1050           0,
1051           G_PARAM_READWRITE));
1052
1053   g_object_class_install_property (object_class,
1054       PROP_CONTENT_HASH,
1055       g_param_spec_string ("content-hash",
1056           "file transfer hash",
1057           "The hash of the transfer's contents",
1058           "",
1059           G_PARAM_READWRITE));
1060
1061   g_object_class_install_property (object_class,
1062       PROP_TRANSFERRED_BYTES,
1063       g_param_spec_uint64 ("transferred-bytes",
1064           "bytes transferred",
1065           "The number of bytes transferred",
1066           0,
1067           G_MAXUINT64,
1068           0,
1069           G_PARAM_READWRITE));
1070
1071   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1072 }