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   MissionControl *mc;
 279   TpChannel *channel;
 280
 281   EmpathyContact *contact;
 282   GInputStream *in_stream;
 283   GOutputStream *out_stream;
 284
 285   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer D-Bus properties */
 286   EmpFileTransferState state;
 287   gchar *content_type;
 288   gchar *filename;
 289   guint64 size;
 290   EmpFileHashType content_hash_type;
 291   gchar *content_hash;
 292   gchar *description;
 293   guint64 transferred_bytes;
 294
 295   gboolean incoming;
 296   EmpFileTransferStateChangeReason state_change_reason;
 297   time_t start_time;
 298   gchar *unix_socket_path;
 299   GCancellable *cancellable;
 300 };
 301
 302 enum {
 303   PROP_0,
 304   PROP_CHANNEL,
 305   PROP_STATE,
 306   PROP_INCOMING,
 307   PROP_FILENAME,
 308   PROP_SIZE,
 309   PROP_CONTENT_TYPE,
 310   PROP_TRANSFERRED_BYTES,
 311   PROP_CONTENT_HASH_TYPE,
 312   PROP_CONTENT_HASH,
 313 };
 314
 315 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 316
 317 static void
 318 empathy_tp_file_init (EmpathyTpFile *tp_file)
 319 {
 320   EmpathyTpFilePriv *priv;
 321
 322   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 323       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 324
 325   tp_file->priv = priv;
 326 }
 327
 328 static void
 329 tp_file_invalidated_cb (TpProxy       *proxy,
 330                         guint          domain,
 331                         gint           code,
 332                         gchar         *message,
 333                         EmpathyTpFile *tp_file)
 334 {
 335         DEBUG ("Channel invalidated: %s", message);
 336         tp_file->priv->state = EMP_FILE_TRANSFER_STATE_CANCELLED;
 337         tp_file->priv->state_change_reason =
 338             EMP_FILE_TRANSFER_STATE_CHANGE_REASON_LOCAL_ERROR;
 339         g_object_notify (G_OBJECT (tp_file), "state");
 340 }
 341
 342 static void
 343 tp_file_finalize (GObject *object)
 344 {
 345   EmpathyTpFile *tp_file;
 346
 347   tp_file = EMPATHY_TP_FILE (object);
 348
 349   if (tp_file->priv->channel)
 350     {
 351       DEBUG ("Closing channel..");
 352       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 353           tp_file_invalidated_cb, object);
 354       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 355           NULL, NULL);
 356       g_object_unref (tp_file->priv->channel);
 357     }
 358
 359   if (tp_file->priv->factory)
 360     {
 361       g_object_unref (tp_file->priv->factory);
 362     }
 363   if (tp_file->priv->mc)
 364     {
 365       g_object_unref (tp_file->priv->mc);
 366     }
 367
 368   g_free (tp_file->priv->filename);
 369   g_free (tp_file->priv->unix_socket_path);
 370   g_free (tp_file->priv->description);
 371   g_free (tp_file->priv->content_hash);
 372   g_free (tp_file->priv->content_type);
 373
 374   if (tp_file->priv->in_stream)
 375     g_object_unref (tp_file->priv->in_stream);
 376
 377   if (tp_file->priv->out_stream)
 378     g_object_unref (tp_file->priv->out_stream);
 379
 380   if (tp_file->priv->contact)
 381     g_object_unref (tp_file->priv->contact);
 382
 383   if (tp_file->priv->cancellable)
 384     g_object_unref (tp_file->priv->cancellable);
 385
 386   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 387 }
 388
 389 static void
 390 tp_file_start_transfer (EmpathyTpFile *tp_file)
 391 {
 392   gint fd;
 393   size_t path_len;
 394   struct sockaddr_un addr;
 395
 396   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 397   if (fd < 0)
 398     {
 399       DEBUG ("Failed to create socket, closing channel");
 400       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 401       return;
 402     }
 403
 404   memset (&addr, 0, sizeof (addr));
 405   addr.sun_family = AF_UNIX;
 406   path_len = strlen (tp_file->priv->unix_socket_path);
 407   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 408
 409   if (connect (fd, (struct sockaddr*) &addr, sizeof (addr)) < 0)
 410     {
 411       DEBUG ("Failed to connect socket, closing channel");
 412       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 413       close (fd);
 414       return;
 415     }
 416
 417   DEBUG ("Start the transfer");
 418
 419   tp_file->priv->start_time = empathy_time_get_current ();
 420   tp_file->priv->cancellable = g_cancellable_new ();
 421   if (tp_file->priv->incoming)
 422     {
 423       GOutputStream *socket_stream;
 424
 425       socket_stream = g_unix_output_stream_new (fd, TRUE);
 426       copy_stream (tp_file->priv->in_stream, socket_stream,
 427           tp_file->priv->cancellable);
 428       g_object_unref (socket_stream);
 429     }
 430   else
 431     {
 432       GInputStream *socket_stream;
 433
 434       socket_stream = g_unix_input_stream_new (fd, TRUE);
 435       copy_stream (socket_stream, tp_file->priv->out_stream,
 436           tp_file->priv->cancellable);
 437       g_object_unref (socket_stream);
 438     }
 439 }
 440
 441 static void
 442 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 443                           EmpFileTransferState state,
 444                           EmpFileTransferStateChangeReason reason,
 445                           EmpathyTpFile *tp_file)
 446 {
 447   DEBUG ("File transfer state changed:\n"
 448       "\tfilename = %s, old state = %u, state = %u, reason = %u\n"
 449       "\tincoming = %s, in_stream = %s, out_stream = %s",
 450       tp_file->priv->filename, tp_file->priv->state, state, reason,
 451       tp_file->priv->incoming ? "yes" : "no",
 452       tp_file->priv->in_stream ? "present" : "not present",
 453       tp_file->priv->out_stream ? "present" : "not present");
 454
 455   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 456     tp_file_start_transfer (tp_file);
 457
 458   tp_file->priv->state = state;
 459   tp_file->priv->state_change_reason = reason;
 460
 461   g_object_notify (G_OBJECT (tp_file), "state");
 462 }
 463
 464 static void
 465 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 466                                       guint64 count,
 467                                       EmpathyTpFile *tp_file,
 468                                       GObject *weak_object)
 469 {
 470   if (tp_file->priv->transferred_bytes == count)
 471     return;
 472
 473   tp_file->priv->transferred_bytes = count;
 474
 475   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 476 }
 477
 478 static GObject *
 479 tp_file_constructor (GType type,
 480                      guint n_props,
 481                      GObjectConstructParam *props)
 482 {
 483   GObject *file_obj;
 484   EmpathyTpFile *tp_file;
 485   TpHandle handle;
 486   GHashTable *properties;
 487   McAccount *account;
 488   GValue *requested;
 489
 490   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 491       n_props, props);
 492
 493   tp_file = EMPATHY_TP_FILE (file_obj);
 494
 495   tp_file->priv->factory = empathy_contact_factory_new ();
 496   tp_file->priv->mc = empathy_mission_control_new ();
 497
 498   g_signal_connect (tp_file->priv->channel, "invalidated",
 499     G_CALLBACK (tp_file_invalidated_cb), tp_file);
 500
 501   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 502       TP_PROXY (tp_file->priv->channel),
 503       (emp_cli_channel_type_file_transfer_signal_callback_file_transfer_state_changed)
 504           tp_file_state_changed_cb,
 505       tp_file,
 506       NULL, NULL, NULL);
 507
 508   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 509       TP_PROXY (tp_file->priv->channel),
 510       (emp_cli_channel_type_file_transfer_signal_callback_transferred_bytes_changed)
 511           tp_file_transferred_bytes_changed_cb,
 512       tp_file,
 513       NULL, NULL, NULL);
 514
 515   account = empathy_channel_get_account (tp_file->priv->channel);
 516
 517   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 518   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 519       tp_file->priv->factory, account, (guint) handle);
 520
 521   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 522       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 523
 524   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 525       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 526
 527   tp_file->priv->size = g_value_get_uint64 (
 528       g_hash_table_lookup (properties, "Size"));
 529
 530   tp_file->priv->state = g_value_get_uint (
 531       g_hash_table_lookup (properties, "State"));
 532
 533   tp_file->priv->state_change_reason =
 534       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 535
 536   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 537       g_hash_table_lookup (properties, "TransferredBytes"));
 538
 539   tp_file->priv->filename = g_value_dup_string (
 540       g_hash_table_lookup (properties, "Filename"));
 541
 542   tp_file->priv->content_hash = g_value_dup_string (
 543       g_hash_table_lookup (properties, "ContentHash"));
 544
 545   tp_file->priv->content_hash_type = g_value_get_uint (
 546       g_hash_table_lookup (properties, "ContentHashType"));
 547
 548   tp_file->priv->content_type = g_value_dup_string (
 549       g_hash_table_lookup (properties, "ContentType"));
 550
 551   tp_file->priv->description = g_value_dup_string (
 552       g_hash_table_lookup (properties, "Description"));
 553
 554   tp_file->priv->incoming = !g_value_get_boolean (requested);
 555
 556   g_hash_table_destroy (properties);
 557   g_object_unref (account);
 558   g_value_unset (requested);
 559
 560   return file_obj;
 561 }
 562
 563 static void
 564 tp_file_get_property (GObject *object,
 565                       guint param_id,
 566                       GValue *value,
 567                       GParamSpec *pspec)
 568 {
 569   EmpathyTpFile *tp_file;
 570
 571   tp_file = EMPATHY_TP_FILE (object);
 572
 573   switch (param_id)
 574     {
 575       case PROP_CHANNEL:
 576         g_value_set_object (value, tp_file->priv->channel);
 577         break;
 578       case PROP_INCOMING:
 579         g_value_set_boolean (value, tp_file->priv->incoming);
 580         break;
 581       case PROP_STATE:
 582         g_value_set_uint (value, tp_file->priv->state);
 583         break;
 584       case PROP_CONTENT_TYPE:
 585         g_value_set_string (value, tp_file->priv->content_type);
 586         break;
 587       case PROP_FILENAME:
 588         g_value_set_string (value, tp_file->priv->filename);
 589         break;
 590       case PROP_SIZE:
 591         g_value_set_uint64 (value, tp_file->priv->size);
 592         break;
 593       case PROP_CONTENT_HASH_TYPE:
 594         g_value_set_uint (value, tp_file->priv->content_hash_type);
 595         break;
 596       case PROP_CONTENT_HASH:
 597         g_value_set_string (value, tp_file->priv->content_hash);
 598         break;
 599       case PROP_TRANSFERRED_BYTES:
 600         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 601         break;
 602       default:
 603         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 604         break;
 605     };
 606 }
 607
 608 static void
 609 tp_file_channel_set_dbus_property (gpointer proxy,
 610                                    const gchar *property,
 611                                    const GValue *value)
 612 {
 613         DEBUG ("Setting %s property", property);
 614         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 615             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 616             NULL, NULL, NULL, NULL);
 617 }
 618
 619 static void
 620 tp_file_set_property (GObject *object,
 621                       guint param_id,
 622                       const GValue *value,
 623                       GParamSpec *pspec)
 624 {
 625   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 626   switch (param_id)
 627     {
 628       case PROP_CHANNEL:
 629         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 630         break;
 631       case PROP_STATE:
 632         tp_file->priv->state = g_value_get_uint (value);
 633         break;
 634       case PROP_INCOMING:
 635         tp_file->priv->incoming = g_value_get_boolean (value);
 636         break;
 637       case PROP_FILENAME:
 638         g_free (tp_file->priv->filename);
 639         tp_file->priv->filename = g_value_dup_string (value);
 640         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 641             "Filename", value);
 642         break;
 643       case PROP_SIZE:
 644         tp_file->priv->size = g_value_get_uint64 (value);
 645         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 646             "Size", value);
 647         break;
 648       case PROP_CONTENT_TYPE:
 649         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 650             "ContentType", value);
 651         g_free (tp_file->priv->content_type);
 652         tp_file->priv->content_type = g_value_dup_string (value);
 653         break;
 654       case PROP_CONTENT_HASH:
 655         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 656             "ContentHash", value);
 657         g_free (tp_file->priv->content_hash);
 658         tp_file->priv->content_hash = g_value_dup_string (value);
 659         break;
 660       default:
 661         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 662         break;
 663     };
 664 }
 665
 666 /**
 667  * empathy_tp_file_new:
 668  * @channel: a Telepathy channel
 669  *
 670  * Creates a new #EmpathyTpFile wrapping @channel.
 671  *
 672  * Returns: a new #EmpathyTpFile
 673  */
 674 EmpathyTpFile *
 675 empathy_tp_file_new (TpChannel *channel)
 676 {
 677   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 678
 679   return g_object_new (EMPATHY_TYPE_TP_FILE,
 680       "channel", channel,
 681       NULL);
 682 }
 683
 684 /**
 685  * empathy_tp_file_get_channel
 686  * @tp_file: an #EmpathyTpFile
 687  *
 688  * Returns the Telepathy file transfer channel
 689  *
 690  * Returns: the #TpChannel
 691  */
 692 TpChannel *
 693 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 694 {
 695   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 696
 697   return tp_file->priv->channel;
 698 }
 699
 700 static void
 701 tp_file_method_cb (TpProxy *proxy,
 702                    const GValue *address,
 703                    const GError *error,
 704                    gpointer user_data,
 705                    GObject *weak_object)
 706 {
 707   EmpathyTpFile *tp_file = (EmpathyTpFile *) weak_object;
 708
 709   if (error)
 710     {
 711       DEBUG ("Error: %s", error->message);
 712       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 713       return;
 714     }
 715
 716   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 717
 718   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 719 }
 720
 721
 722 /**
 723  * empathy_tp_file_accept:
 724  * @tp_file: an #EmpathyTpFile
 725  * @offset: position where to start the transfer
 726  * @gfile: a #GFile where to write transfered data
 727  * @error: a #GError set if there is an error when opening @gfile
 728  *
 729  * Accepts a file transfer that's in the "local pending" state (i.e.
 730  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 731  */
 732 void
 733 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 734                         guint64 offset,
 735                         GFile *gfile,
 736                         GError **error)
 737 {
 738   GValue nothing = { 0 };
 739
 740   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 741   g_return_if_fail (G_IS_FILE (gfile));
 742
 743   tp_file->priv->out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL,
 744         FALSE, 0, NULL, error));
 745   if (error && *error)
 746     return;
 747
 748   tp_file->priv->filename = g_file_get_basename (gfile);
 749   g_object_notify (G_OBJECT (tp_file), "filename");
 750
 751   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 752
 753   g_value_init (&nothing, G_TYPE_STRING);
 754   g_value_set_static_string (&nothing, "");
 755
 756   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 757       tp_file->priv->channel),
 758       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 759       &nothing, offset, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 760 }
 761
 762 /**
 763  * empathy_tp_file_offer:
 764  * @tp_file: an #EmpathyTpFile
 765  * @gfile: a #GFile where to read the data to transfer
 766  * @error: a #GError set if there is an error when opening @gfile
 767  *
 768  * Offers a file transfer that's in the "not offered" state (i.e.
 769  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 770  */
 771 void
 772 empathy_tp_file_offer (EmpathyTpFile *tp_file, GFile *gfile, GError **error)
 773 {
 774   GValue nothing = { 0 };
 775
 776   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 777
 778   tp_file->priv->in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, error));
 779   if (error && *error)
 780         return;
 781
 782   g_value_init (&nothing, G_TYPE_STRING);
 783   g_value_set_static_string (&nothing, "");
 784
 785   emp_cli_channel_type_file_transfer_call_provide_file (
 786       TP_PROXY (tp_file->priv->channel), -1,
 787       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 788       &nothing, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 789 }
 790
 791 EmpathyContact *
 792 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 793 {
 794   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 795   return tp_file->priv->contact;
 796 }
 797
 798 const gchar *
 799 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 800 {
 801   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 802   return tp_file->priv->filename;
 803 }
 804
 805 gboolean
 806 empathy_tp_file_is_incoming (EmpathyTpFile *tp_file)
 807 {
 808   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 809   return tp_file->priv->incoming;
 810 }
 811
 812 EmpFileTransferState
 813 empathy_tp_file_get_state (EmpathyTpFile *tp_file,
 814                            EmpFileTransferStateChangeReason *reason)
 815 {
 816   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 817       EMP_FILE_TRANSFER_STATE_NONE);
 818
 819   if (reason != NULL)
 820     *reason = tp_file->priv->state_change_reason;
 821
 822   return tp_file->priv->state;
 823 }
 824
 825 guint64
 826 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 827 {
 828   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 829       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 830   return tp_file->priv->size;
 831 }
 832
 833 guint64
 834 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 835 {
 836   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 837   return tp_file->priv->transferred_bytes;
 838 }
 839
 840 gint
 841 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 842 {
 843   time_t curr_time, elapsed_time;
 844   gdouble time_per_byte;
 845   gdouble remaining_time;
 846
 847   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 848
 849   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 850     return -1;
 851
 852   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 853     return 0;
 854
 855   curr_time = empathy_time_get_current ();
 856   elapsed_time = curr_time - tp_file->priv->start_time;
 857   time_per_byte = (gdouble) elapsed_time /
 858       (gdouble) tp_file->priv->transferred_bytes;
 859   remaining_time = time_per_byte * (tp_file->priv->size -
 860       tp_file->priv->transferred_bytes);
 861
 862   return (gint) remaining_time;
 863 }
 864
 865 void
 866 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 867 {
 868   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 869
 870   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 871
 872   g_cancellable_cancel (tp_file->priv->cancellable);
 873 }
 874
 875 static void
 876 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 877 {
 878   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 879
 880   object_class->finalize = tp_file_finalize;
 881   object_class->constructor = tp_file_constructor;
 882   object_class->get_property = tp_file_get_property;
 883   object_class->set_property = tp_file_set_property;
 884
 885   /* Construct-only properties */
 886   g_object_class_install_property (object_class,
 887       PROP_CHANNEL,
 888       g_param_spec_object ("channel",
 889           "telepathy channel",
 890           "The file transfer channel",
 891           TP_TYPE_CHANNEL,
 892           G_PARAM_READWRITE |
 893           G_PARAM_CONSTRUCT_ONLY));
 894
 895   g_object_class_install_property (object_class,
 896       PROP_STATE,
 897       g_param_spec_uint ("state",
 898           "state of the transfer",
 899           "The file transfer state",
 900           0,
 901           G_MAXUINT,
 902           G_MAXUINT,
 903           G_PARAM_READWRITE |
 904           G_PARAM_CONSTRUCT));
 905
 906   g_object_class_install_property (object_class,
 907       PROP_INCOMING,
 908       g_param_spec_boolean ("incoming",
 909           "incoming",
 910           "Whether the transfer is incoming",
 911           FALSE,
 912           G_PARAM_READWRITE |
 913           G_PARAM_CONSTRUCT));
 914
 915   g_object_class_install_property (object_class,
 916       PROP_FILENAME,
 917       g_param_spec_string ("filename",
 918           "name of the transfer",
 919           "The file transfer filename",
 920           "",
 921           G_PARAM_READWRITE));
 922
 923   g_object_class_install_property (object_class,
 924       PROP_SIZE,
 925       g_param_spec_uint64 ("size",
 926           "size of the file",
 927           "The file transfer size",
 928           0,
 929           G_MAXUINT64,
 930           G_MAXUINT64,
 931           G_PARAM_READWRITE));
 932
 933   g_object_class_install_property (object_class,
 934       PROP_CONTENT_TYPE,
 935       g_param_spec_string ("content-type",
 936           "file transfer content-type",
 937           "The file transfer content-type",
 938           "",
 939           G_PARAM_READWRITE));
 940
 941   g_object_class_install_property (object_class,
 942       PROP_CONTENT_HASH_TYPE,
 943       g_param_spec_uint ("content-hash-type",
 944           "file transfer hash type",
 945           "The type of the file transfer hash",
 946           0,
 947           G_MAXUINT,
 948           0,
 949           G_PARAM_READWRITE));
 950
 951   g_object_class_install_property (object_class,
 952       PROP_CONTENT_HASH,
 953       g_param_spec_string ("content-hash",
 954           "file transfer hash",
 955           "The hash of the transfer's contents",
 956           "",
 957           G_PARAM_READWRITE));
 958
 959   g_object_class_install_property (object_class,
 960       PROP_TRANSFERRED_BYTES,
 961       g_param_spec_uint64 ("transferred-bytes",
 962           "bytes transferred",
 963           "The number of bytes transferred",
 964           0,
 965           G_MAXUINT64,
 966           0,
 967           G_PARAM_READWRITE));
 968
 969   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
 970 }
 971