libempathy/empathy-tp-file.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * Copyright (C) 2007-2008 Collabora Ltd.
   4  * Copyright (C) 2007 Marco Barisione <marco@barisione.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  * Authors: Marco Barisione <marco@barisione.org>
  21  *          Jonny Lamb <jonny.lamb@collabora.co.uk>
  22  */
  23
  24 #include <config.h>
  25
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <sys/types.h>
  29 #include <sys/socket.h>
  30 #include <sys/un.h>
  31
  32 #include <glib/gi18n.h>
  33
  34 #include <gio/gio.h>
  35 #include <gio/gunixinputstream.h>
  36 #include <gio/gunixoutputstream.h>
  37
  38 #include <libtelepathy/tp-conn.h>
  39 #include <libtelepathy/tp-helpers.h>
  40 #include <libtelepathy/tp-props-iface.h>
  41
  42 #include <telepathy-glib/proxy-subclass.h>
  43
  44 #include "empathy-tp-file.h"
  45 #include "empathy-contact-factory.h"
  46 #include "empathy-marshal.h"
  47 #include "empathy-time.h"
  48 #include "empathy-utils.h"
  49
  50 #define DEBUG_FLAG EMPATHY_DEBUG_FT
  51 #include "empathy-debug.h"
  52
  53 /**
  54  * SECTION:empathy-tp-file
  55  * @short_description: File channel
  56  * @see_also: #EmpathyTpFile, #EmpathyContact, empathy_send_file()
  57  * @include: libempthy/empathy-tp-file.h
  58  *
  59  * The #EmpathyTpFile object represents a Telepathy file channel.
  60  */
  61
  62 /**
  63  * EMPATHY_TP_FILE_UNKNOWN_SIZE:
  64  *
  65  * Value used for the "size" or "estimated-size" properties when the size of
  66  * the transferred file is unknown.
  67  */
  68
  69 /* Functions to copy the content of a GInputStream to a GOutputStream */
  70
  71 #define N_BUFFERS 2
  72 #define BUFFER_SIZE 4096
  73
  74 typedef struct {
  75   GInputStream *in;
  76   GOutputStream *out;
  77   GCancellable  *cancellable;
  78   char *buff[N_BUFFERS]; /* the temporary buffers */
  79   gsize count[N_BUFFERS]; /* how many bytes are used in the buffers */
  80   gboolean is_full[N_BUFFERS]; /* whether the buffers contain data */
  81   gint curr_read; /* index of the buffer used for reading */
  82   gint curr_write; /* index of the buffer used for writing */
  83   gboolean is_reading; /* we are reading */
  84   gboolean is_writing; /* we are writing */
  85   guint n_closed; /* number of streams that have been closed */
  86 } CopyData;
  87
  88 static void schedule_next (CopyData *copy);
  89
  90 static void
  91 free_copy_data_if_closed (CopyData *copy)
  92 {
  93   gint i;
  94
  95   /* Free the data only if both the input and output streams have
  96    * been closed. */
  97   copy->n_closed++;
  98   if (copy->n_closed < 2)
  99     return;
 100
 101   if (copy->in != NULL)
 102     g_object_unref (copy->in);
 103
 104   if (copy->out != NULL)
 105     g_object_unref (copy->out);
 106
 107   for (i = 0; i < N_BUFFERS; i++)
 108     g_free (copy->buff[i]);
 109
 110   g_object_unref (copy->cancellable);
 111   g_free (copy);
 112 }
 113
 114 static void
 115 io_error (CopyData *copy,
 116           GError *error)
 117 {
 118   g_cancellable_cancel (copy->cancellable);
 119
 120   if (error == NULL)
 121     g_warning ("I/O error");
 122   else if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
 123     ; /* Ignore cancellations */
 124   else
 125     g_warning ("I/O error: %d: %s\n", error->code, error->message);
 126
 127   if (copy->in != NULL)
 128     g_input_stream_close (copy->in, NULL, NULL);
 129
 130   if (copy->out != NULL)
 131     g_output_stream_close (copy->out, NULL, NULL);
 132
 133   free_copy_data_if_closed (copy);
 134 }
 135
 136 static void
 137 close_done (GObject *source_object,
 138             GAsyncResult *res,
 139             gpointer user_data)
 140 {
 141   CopyData *copy = user_data;
 142
 143   g_object_unref (source_object);
 144   free_copy_data_if_closed (copy);
 145 }
 146
 147 static void
 148 write_done_cb (GObject *source_object,
 149                GAsyncResult *res,
 150                gpointer user_data)
 151 {
 152   CopyData *copy = user_data;
 153   gssize count_write;
 154   GError *error = NULL;
 155
 156   count_write = g_output_stream_write_finish (copy->out, res, &error);
 157
 158   if (count_write <= 0)
 159     {
 160       io_error (copy, error);
 161       g_error_free (error);
 162       return;
 163     }
 164
 165   copy->is_full[copy->curr_write] = FALSE;
 166   copy->curr_write = (copy->curr_write + 1) % N_BUFFERS;
 167   copy->is_writing = FALSE;
 168
 169   schedule_next (copy);
 170 }
 171
 172 static void
 173 read_done_cb (GObject *source_object,
 174               GAsyncResult *res,
 175               gpointer user_data)
 176 {
 177   CopyData *copy = user_data;
 178   gssize count_read;
 179   GError *error = NULL;
 180
 181   count_read = g_input_stream_read_finish (copy->in, res, &error);
 182
 183   if (count_read == 0)
 184     {
 185       g_input_stream_close_async (copy->in, 0, copy->cancellable,
 186           close_done, copy);
 187       copy->in = NULL;
 188     }
 189   else if (count_read < 0)
 190     {
 191       io_error (copy, error);
 192       g_error_free (error);
 193       return;
 194     }
 195
 196   copy->count[copy->curr_read] = count_read;
 197   copy->is_full[copy->curr_read] = TRUE;
 198   copy->curr_read = (copy->curr_read + 1) % N_BUFFERS;
 199   copy->is_reading = FALSE;
 200
 201   schedule_next (copy);
 202 }
 203
 204 static void
 205 schedule_next (CopyData *copy)
 206 {
 207   if (copy->in != NULL &&
 208       !copy->is_reading &&
 209       !copy->is_full[copy->curr_read])
 210     {
 211       /* We are not reading and the current buffer is empty, so
 212        * start an async read. */
 213       copy->is_reading = TRUE;
 214       g_input_stream_read_async (copy->in,
 215           copy->buff[copy->curr_read],
 216           BUFFER_SIZE, 0, copy->cancellable,
 217           read_done_cb, copy);
 218     }
 219
 220   if (!copy->is_writing &&
 221       copy->is_full[copy->curr_write])
 222     {
 223       if (copy->count[copy->curr_write] == 0)
 224         {
 225           /* The last read on the buffer read 0 bytes, this
 226            * means that we got an EOF, so we can close
 227            * the output channel. */
 228           g_output_stream_close_async (copy->out, 0,
 229               copy->cancellable,
 230               close_done, copy);
 231       copy->out = NULL;
 232         }
 233       else
 234         {
 235           /* We are not writing and the current buffer contains
 236            * data, so start an async write. */
 237           copy->is_writing = TRUE;
 238           g_output_stream_write_async (copy->out,
 239               copy->buff[copy->curr_write],
 240               copy->count[copy->curr_write],
 241               0, copy->cancellable,
 242               write_done_cb, copy);
 243         }
 244     }
 245 }
 246
 247 static void
 248 copy_stream (GInputStream *in,
 249              GOutputStream *out,
 250              GCancellable *cancellable)
 251 {
 252   CopyData *copy;
 253   gint i;
 254
 255   g_return_if_fail (in != NULL);
 256   g_return_if_fail (out != NULL);
 257
 258   copy = g_new0 (CopyData, 1);
 259   copy->in = g_object_ref (in);
 260   copy->out = g_object_ref (out);
 261
 262   if (cancellable != NULL)
 263     copy->cancellable = g_object_ref (cancellable);
 264   else
 265     copy->cancellable = g_cancellable_new ();
 266
 267   for (i = 0; i < N_BUFFERS; i++)
 268     copy->buff[i] = g_malloc (BUFFER_SIZE);
 269
 270   schedule_next (copy);
 271 }
 272
 273 /* EmpathyTpFile object */
 274
 275 struct _EmpathyTpFilePriv {
 276   EmpathyContactFactory *factory;
 277   gchar *id;
 278   MissionControl *mc;
 279   TpChannel *channel;
 280
 281   EmpathyContact *contact;
 282   GInputStream *in_stream;
 283   GOutputStream *out_stream;
 284   gboolean incoming;
 285   gchar *filename;
 286   EmpFileTransferState state;
 287   EmpFileTransferStateChangeReason state_change_reason;
 288   guint64 size;
 289   guint64 transferred_bytes;
 290   time_t start_time;
 291   gchar *unix_socket_path;
 292   gchar *content_hash;
 293   EmpFileHashType content_hash_type;
 294   gchar *content_type;
 295   gchar *description;
 296   GCancellable *cancellable;
 297 };
 298
 299 enum {
 300   PROP_0,
 301   PROP_CHANNEL,
 302   PROP_STATE,
 303   PROP_INCOMING,
 304   PROP_FILENAME,
 305   PROP_SIZE,
 306   PROP_CONTENT_TYPE,
 307   PROP_TRANSFERRED_BYTES,
 308   PROP_CONTENT_HASH_TYPE,
 309   PROP_CONTENT_HASH,
 310   PROP_IN_STREAM,
 311 };
 312
 313 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 314
 315 static void
 316 empathy_tp_file_init (EmpathyTpFile *tp_file)
 317 {
 318   EmpathyTpFilePriv *priv;
 319
 320   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 321       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 322
 323   tp_file->priv = priv;
 324 }
 325
 326 static void
 327 tp_file_destroy_cb (TpChannel *file_channel,
 328                     EmpathyTpFile *tp_file)
 329 {
 330   DEBUG ("Channel Closed or CM crashed");
 331
 332   g_object_unref (tp_file->priv->channel);
 333   tp_file->priv->channel = NULL;
 334 }
 335
 336 static void
 337 tp_file_finalize (GObject *object)
 338 {
 339   EmpathyTpFile *tp_file;
 340
 341   tp_file = EMPATHY_TP_FILE (object);
 342
 343   if (tp_file->priv->channel)
 344     {
 345       DEBUG ("Closing channel..");
 346       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 347           tp_file_destroy_cb, object);
 348       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 349           NULL, NULL);
 350       g_object_unref (tp_file->priv->channel);
 351     }
 352
 353   if (tp_file->priv->factory)
 354     {
 355       g_object_unref (tp_file->priv->factory);
 356     }
 357   if (tp_file->priv->mc)
 358     {
 359       g_object_unref (tp_file->priv->mc);
 360     }
 361
 362   g_free (tp_file->priv->id);
 363   g_free (tp_file->priv->filename);
 364   g_free (tp_file->priv->unix_socket_path);
 365   g_free (tp_file->priv->description);
 366   g_free (tp_file->priv->content_hash);
 367   g_free (tp_file->priv->content_type);
 368
 369   if (tp_file->priv->in_stream)
 370     g_object_unref (tp_file->priv->in_stream);
 371
 372   if (tp_file->priv->out_stream)
 373     g_object_unref (tp_file->priv->out_stream);
 374
 375   if (tp_file->priv->contact)
 376     g_object_unref (tp_file->priv->contact);
 377
 378   if (tp_file->priv->cancellable)
 379     g_object_unref (tp_file->priv->cancellable);
 380
 381   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 382 }
 383
 384 static void
 385 tp_file_closed_cb (TpChannel *file_channel,
 386                    EmpathyTpFile *tp_file,
 387                    GObject *weak_object)
 388 {
 389   /* The channel is closed, do just like if the proxy was destroyed */
 390   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 391       tp_file_destroy_cb,
 392       tp_file);
 393   tp_file_destroy_cb (file_channel, tp_file);
 394 }
 395
 396 static gint
 397 _get_local_socket (EmpathyTpFile *tp_file)
 398 {
 399   gint fd;
 400   size_t path_len;
 401   struct sockaddr_un addr;
 402
 403   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 404     return -1;
 405
 406   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 407   if (fd < 0)
 408     return -1;
 409
 410   memset (&addr, 0, sizeof (addr));
 411   addr.sun_family = AF_UNIX;
 412   path_len = strlen (tp_file->priv->unix_socket_path);
 413   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 414
 415   if (connect (fd, (struct sockaddr*) &addr,
 416       sizeof (addr)) < 0)
 417     {
 418       close (fd);
 419       return -1;
 420     }
 421
 422   return fd;
 423 }
 424
 425 static void
 426 send_tp_file (EmpathyTpFile *tp_file)
 427 {
 428   gint socket_fd;
 429   GOutputStream *socket_stream;
 430
 431   DEBUG ("Sending file content: filename=%s",
 432       tp_file->priv->filename);
 433
 434   g_return_if_fail (tp_file->priv->in_stream);
 435
 436   socket_fd = _get_local_socket (tp_file);
 437   if (socket_fd < 0)
 438     {
 439       DEBUG ("failed to get local socket fd");
 440       return;
 441     }
 442   DEBUG ("got local socket fd");
 443   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 444
 445   tp_file->priv->cancellable = g_cancellable_new ();
 446
 447   copy_stream (tp_file->priv->in_stream, socket_stream,
 448       tp_file->priv->cancellable);
 449
 450   g_object_unref (socket_stream);
 451 }
 452
 453 static void
 454 receive_tp_file (EmpathyTpFile *tp_file)
 455 {
 456   GInputStream *socket_stream;
 457   gint socket_fd;
 458
 459   socket_fd = _get_local_socket (tp_file);
 460
 461   if (socket_fd < 0)
 462     return;
 463
 464   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 465
 466   tp_file->priv->cancellable = g_cancellable_new ();
 467
 468   copy_stream (socket_stream, tp_file->priv->out_stream,
 469       tp_file->priv->cancellable);
 470
 471   g_object_unref (socket_stream);
 472 }
 473
 474 static void
 475 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 476                           EmpFileTransferState state,
 477                           EmpFileTransferStateChangeReason reason,
 478                           EmpathyTpFile *tp_file)
 479 {
 480   DEBUG ("File transfer state changed: filename=%s, "
 481       "old state=%u, state=%u, reason=%u",
 482       tp_file->priv->filename, tp_file->priv->state, state, reason);
 483
 484   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 485     tp_file->priv->start_time = empathy_time_get_current ();
 486
 487   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 488       state, tp_file->priv->incoming ? "yes" : "no",
 489       tp_file->priv->in_stream ? "present" : "not present",
 490       tp_file->priv->out_stream ? "present" : "not present");
 491
 492   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 493       tp_file->priv->in_stream)
 494     send_tp_file (tp_file);
 495   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 496       tp_file->priv->out_stream)
 497     receive_tp_file (tp_file);
 498
 499   tp_file->priv->state = state;
 500   tp_file->priv->state_change_reason = reason;
 501
 502   g_object_notify (G_OBJECT (tp_file), "state");
 503 }
 504
 505 static void
 506 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 507                                       guint64 count,
 508                                       EmpathyTpFile *tp_file,
 509                                       GObject *weak_object)
 510 {
 511   if (tp_file->priv->transferred_bytes == count)
 512     return;
 513
 514   tp_file->priv->transferred_bytes = count;
 515
 516   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 517 }
 518
 519 static GObject *
 520 tp_file_constructor (GType type,
 521                      guint n_props,
 522                      GObjectConstructParam *props)
 523 {
 524   GObject *file_obj;
 525   EmpathyTpFile *tp_file;
 526   TpHandle handle;
 527   GHashTable *properties;
 528   McAccount *account;
 529
 530   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 531       n_props, props);
 532
 533   tp_file = EMPATHY_TP_FILE (file_obj);
 534
 535   tp_file->priv->factory = empathy_contact_factory_new ();
 536   tp_file->priv->mc = empathy_mission_control_new ();
 537
 538   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 539       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 540       tp_file,
 541       NULL, NULL, NULL);
 542
 543   emp_cli_channel_type_file_connect_to_file_transfer_state_changed (
 544       TP_PROXY (tp_file->priv->channel),
 545       (emp_cli_channel_type_file_signal_callback_file_transfer_state_changed)
 546           tp_file_state_changed_cb,
 547       tp_file,
 548       NULL, NULL, NULL);
 549
 550   emp_cli_channel_type_file_connect_to_transferred_bytes_changed (
 551       TP_PROXY (tp_file->priv->channel),
 552       (emp_cli_channel_type_file_signal_callback_transferred_bytes_changed)
 553           tp_file_transferred_bytes_changed_cb,
 554       tp_file,
 555       NULL, NULL, NULL);
 556
 557   account = empathy_channel_get_account (tp_file->priv->channel);
 558
 559   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 560   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 561       tp_file->priv->factory, account, (guint) handle);
 562
 563   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 564       -1, EMP_IFACE_CHANNEL_TYPE_FILE, &properties, NULL, NULL);
 565
 566   tp_file->priv->size = g_value_get_uint64 (
 567       g_hash_table_lookup (properties, "Size"));
 568
 569   tp_file->priv->state = g_value_get_uint (
 570       g_hash_table_lookup (properties, "State"));
 571
 572   tp_file->priv->state_change_reason =
 573       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 574
 575   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 576       g_hash_table_lookup (properties, "TransferredBytes"));
 577
 578   tp_file->priv->filename = g_value_dup_string (
 579       g_hash_table_lookup (properties, "Filename"));
 580
 581   tp_file->priv->content_hash = g_value_dup_string (
 582       g_hash_table_lookup (properties, "ContentHash"));
 583
 584   tp_file->priv->description = g_value_dup_string (
 585       g_hash_table_lookup (properties, "Description"));
 586
 587   if (tp_file->priv->state == EMP_FILE_TRANSFER_STATE_LOCAL_PENDING)
 588     tp_file->priv->incoming = TRUE;
 589
 590   g_hash_table_destroy (properties);
 591   g_object_unref (account);
 592
 593   return file_obj;
 594 }
 595
 596 static void
 597 tp_file_get_property (GObject *object,
 598                       guint param_id,
 599                       GValue *value,
 600                       GParamSpec *pspec)
 601 {
 602   EmpathyTpFile *tp_file;
 603
 604   tp_file = EMPATHY_TP_FILE (object);
 605
 606   switch (param_id)
 607     {
 608       case PROP_CHANNEL:
 609         g_value_set_object (value, tp_file->priv->channel);
 610         break;
 611       default:
 612         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 613         break;
 614     };
 615 }
 616
 617 static void
 618 tp_file_channel_set_dbus_property (gpointer proxy,
 619                                    const gchar *property,
 620                                    const GValue *value)
 621 {
 622         DEBUG ("Setting %s property", property);
 623         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 624             EMP_IFACE_CHANNEL_TYPE_FILE, property, value,
 625             NULL, NULL, NULL, NULL);
 626 }
 627
 628
 629 static void
 630 tp_file_set_property (GObject *object,
 631                       guint param_id,
 632                       const GValue *value,
 633                       GParamSpec *pspec)
 634 {
 635   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 636   switch (param_id)
 637     {
 638       case PROP_CHANNEL:
 639         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 640         break;
 641       case PROP_STATE:
 642         tp_file->priv->state = g_value_get_uint (value);
 643         break;
 644       case PROP_INCOMING:
 645         tp_file->priv->incoming = g_value_get_boolean (value);
 646         break;
 647       case PROP_FILENAME:
 648         g_free (tp_file->priv->filename);
 649         tp_file->priv->filename = g_value_dup_string (value);
 650         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 651             "Filename", value);
 652         break;
 653       case PROP_SIZE:
 654         tp_file->priv->size = g_value_get_uint64 (value);
 655         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 656             "Size", value);
 657         break;
 658       case PROP_CONTENT_TYPE:
 659         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 660             "ContentType", value);
 661         g_free (tp_file->priv->content_type);
 662         tp_file->priv->content_type = g_value_dup_string (value);
 663         break;
 664       case PROP_CONTENT_HASH:
 665         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 666             "ContentHash", value);
 667         g_free (tp_file->priv->content_hash);
 668         tp_file->priv->content_hash = g_value_dup_string (value);
 669         break;
 670       case PROP_IN_STREAM:
 671         if (tp_file->priv->in_stream)
 672           g_object_unref (tp_file->priv->in_stream);
 673         tp_file->priv->in_stream = g_object_ref (g_value_get_object (value));
 674         break;
 675       default:
 676         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 677         break;
 678     };
 679 }
 680
 681 /**
 682  * empathy_tp_file_new:
 683  * @channel: a Telepathy channel
 684  *
 685  * Creates a new #EmpathyTpFile wrapping @channel.
 686  *
 687  * Returns: a new #EmpathyTpFile
 688  */
 689 EmpathyTpFile *
 690 empathy_tp_file_new (TpChannel *channel)
 691 {
 692   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 693
 694   return g_object_new (EMPATHY_TYPE_TP_FILE,
 695       "channel", channel,
 696       NULL);
 697 }
 698
 699 /**
 700  * empathy_tp_file_get_id:
 701  * @tp_file: an #EmpathyTpFile
 702  *
 703  * Returns the ID of @tp_file.
 704  *
 705  * Returns: the ID
 706  */
 707 const gchar *
 708 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 709 {
 710   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 711
 712   return tp_file->priv->id;
 713 }
 714
 715 /**
 716  * empathy_tp_file_get_channel
 717  * @tp_file: an #EmpathyTpFile
 718  *
 719  * Returns the Telepathy file transfer channel
 720  *
 721  * Returns: the #TpChannel
 722  */
 723 TpChannel *
 724 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 725 {
 726   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 727
 728   return tp_file->priv->channel;
 729 }
 730
 731 static void
 732 tp_file_method_cb (TpProxy *proxy,
 733                    const GValue *address,
 734                    const GError *error,
 735                    gpointer user_data,
 736                    GObject *weak_object)
 737 {
 738   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 739
 740   if (error)
 741     {
 742       DEBUG ("Error: %s", error->message);
 743       return;
 744     }
 745
 746   if (tp_file->priv->unix_socket_path)
 747     g_free (tp_file->priv->unix_socket_path);
 748
 749   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 750
 751   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 752 }
 753
 754
 755 /**
 756  * empathy_tp_file_accept:
 757  * @tp_file: an #EmpathyTpFile
 758  *
 759  * Accepts a file transfer that's in the "local pending" state (i.e.
 760  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 761  */
 762 void
 763 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 764                         guint64 offset)
 765 {
 766   GValue nothing = { 0 };
 767
 768   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 769
 770   g_return_if_fail (tp_file->priv->out_stream != NULL);
 771
 772   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 773
 774   g_value_init (&nothing, G_TYPE_STRING);
 775   g_value_set_string (&nothing, "");
 776
 777   emp_cli_channel_type_file_call_accept_file (TP_PROXY (tp_file->priv->channel),
 778       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 779       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 780 }
 781
 782 /**
 783  * empathy_tp_file_offer:
 784  * @tp_file: an #EmpathyTpFile
 785  *
 786  * Offers a file transfer that's in the "not offered" state (i.e.
 787  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 788  */
 789 void
 790 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 791 {
 792   GValue nothing = { 0 };
 793
 794   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 795
 796   g_value_init (&nothing, G_TYPE_STRING);
 797   g_value_set_string (&nothing, "");
 798
 799   emp_cli_channel_type_file_call_offer_file (
 800       TP_PROXY (tp_file->priv->channel), -1,
 801       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 802       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 803 }
 804
 805 EmpathyContact *
 806 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 807 {
 808   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 809   return tp_file->priv->contact;
 810 }
 811
 812 GInputStream *
 813 empathy_tp_file_get_input_stream (EmpathyTpFile *tp_file)
 814 {
 815   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 816   return tp_file->priv->in_stream;
 817 }
 818
 819 GOutputStream *
 820 empathy_tp_file_get_output_stream (EmpathyTpFile *tp_file)
 821 {
 822   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 823   return tp_file->priv->out_stream;
 824 }
 825
 826 const gchar *
 827 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 828 {
 829   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 830   return tp_file->priv->filename;
 831 }
 832
 833 gboolean
 834 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 835 {
 836   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 837   return tp_file->priv->incoming;
 838 }
 839
 840 EmpFileTransferState
 841 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 842 {
 843   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 844       EMP_FILE_TRANSFER_STATE_NONE);
 845   return tp_file->priv->state;
 846 }
 847
 848 EmpFileTransferStateChangeReason
 849 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 850 {
 851   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 852       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 853
 854   return tp_file->priv->state_change_reason;
 855 }
 856
 857 guint64
 858 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 859 {
 860   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 861       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 862   return tp_file->priv->size;
 863 }
 864
 865 guint64
 866 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 867 {
 868   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 869   return tp_file->priv->transferred_bytes;
 870 }
 871
 872 gint
 873 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 874 {
 875   time_t curr_time, elapsed_time;
 876   gdouble time_per_byte;
 877   gdouble remaining_time;
 878
 879   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 880
 881   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 882     return -1;
 883
 884   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 885     return 0;
 886
 887   curr_time = empathy_time_get_current ();
 888   elapsed_time = curr_time - tp_file->priv->start_time;
 889   time_per_byte = (gdouble) elapsed_time /
 890       (gdouble) tp_file->priv->transferred_bytes;
 891   remaining_time = time_per_byte * (tp_file->priv->size -
 892       tp_file->priv->transferred_bytes);
 893
 894   return (gint) remaining_time;
 895 }
 896
 897 void
 898 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 899 {
 900   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 901
 902   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 903
 904   g_cancellable_cancel (tp_file->priv->cancellable);
 905 }
 906
 907 void
 908 empathy_tp_file_set_input_stream (EmpathyTpFile *tp_file,
 909                                   GInputStream *in_stream)
 910 {
 911   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 912   g_return_if_fail (G_IS_INPUT_STREAM (in_stream));
 913
 914   if (tp_file->priv->in_stream == in_stream)
 915     return;
 916
 917   if (tp_file->priv->incoming)
 918     g_warning ("Setting an input stream for incoming file "
 919          "transfers is useless");
 920
 921   if (tp_file->priv->in_stream)
 922     g_object_unref (tp_file->priv->in_stream);
 923
 924   if (in_stream)
 925     g_object_ref (in_stream);
 926
 927   tp_file->priv->in_stream = in_stream;
 928
 929   g_object_notify (G_OBJECT (tp_file), "in-stream");
 930 }
 931
 932 void
 933 empathy_tp_file_set_output_stream (EmpathyTpFile *tp_file,
 934                                    GOutputStream *out_stream)
 935 {
 936   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 937   g_return_if_fail (G_IS_OUTPUT_STREAM (out_stream));
 938
 939   if (tp_file->priv->out_stream == out_stream)
 940     return;
 941
 942   if (!tp_file->priv->incoming)
 943     g_warning ("Setting an output stream for outgoing file "
 944          "transfers is useless");
 945
 946   if (tp_file->priv->out_stream)
 947     g_object_unref (tp_file->priv->out_stream);
 948
 949   if (out_stream)
 950     g_object_ref (out_stream);
 951
 952   tp_file->priv->out_stream = out_stream;
 953 }
 954
 955 void
 956 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 957                               const gchar *filename)
 958 {
 959   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 960   g_return_if_fail (filename != NULL);
 961
 962   if (tp_file->priv->filename && strcmp (filename,
 963       tp_file->priv->filename) == 0)
 964     return;
 965
 966   g_free (tp_file->priv->filename);
 967   tp_file->priv->filename = g_strdup (filename);
 968
 969   g_object_notify (G_OBJECT (tp_file), "filename");
 970 }
 971
 972 static void
 973 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 974 {
 975   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 976
 977   object_class->finalize = tp_file_finalize;
 978   object_class->constructor = tp_file_constructor;
 979   object_class->get_property = tp_file_get_property;
 980   object_class->set_property = tp_file_set_property;
 981
 982   /* Construct-only properties */
 983   g_object_class_install_property (object_class,
 984       PROP_CHANNEL,
 985       g_param_spec_object ("channel",
 986           "telepathy channel",
 987           "The file transfer channel",
 988           TP_TYPE_CHANNEL,
 989           G_PARAM_READWRITE |
 990           G_PARAM_CONSTRUCT_ONLY));
 991
 992   g_object_class_install_property (object_class,
 993       PROP_STATE,
 994       g_param_spec_uint ("state",
 995           "state of the transfer",
 996           "The file transfer state",
 997           0,
 998           G_MAXUINT,
 999           G_MAXUINT,
1000           G_PARAM_READWRITE |
1001           G_PARAM_CONSTRUCT));
1002
1003   g_object_class_install_property (object_class,
1004       PROP_INCOMING,
1005       g_param_spec_boolean ("incoming",
1006           "incoming",
1007           "Whether the transfer is incoming",
1008           FALSE,
1009           G_PARAM_READWRITE |
1010           G_PARAM_CONSTRUCT));
1011
1012   g_object_class_install_property (object_class,
1013       PROP_FILENAME,
1014       g_param_spec_string ("filename",
1015           "name of the transfer",
1016           "The file transfer filename",
1017           "",
1018           G_PARAM_READWRITE));
1019
1020   g_object_class_install_property (object_class,
1021       PROP_SIZE,
1022       g_param_spec_uint64 ("size",
1023           "size of the file",
1024           "The file transfer size",
1025           0,
1026           G_MAXUINT64,
1027           G_MAXUINT64,
1028           G_PARAM_READWRITE));
1029
1030   g_object_class_install_property (object_class,
1031       PROP_CONTENT_TYPE,
1032       g_param_spec_string ("content-type",
1033           "file transfer content-type",
1034           "The file transfer content-type",
1035           "",
1036           G_PARAM_READWRITE));
1037
1038   g_object_class_install_property (object_class,
1039       PROP_CONTENT_HASH_TYPE,
1040       g_param_spec_uint ("content-hash-type",
1041           "file transfer hash type",
1042           "The type of the file transfer hash",
1043           0,
1044           G_MAXUINT,
1045           0,
1046           G_PARAM_READWRITE));
1047
1048   g_object_class_install_property (object_class,
1049       PROP_CONTENT_HASH,
1050       g_param_spec_string ("content-hash",
1051           "file transfer hash",
1052           "The hash of the transfer's contents",
1053           "",
1054           G_PARAM_READWRITE));
1055
1056   g_object_class_install_property (object_class,
1057       PROP_TRANSFERRED_BYTES,
1058       g_param_spec_uint64 ("transferred-bytes",
1059           "bytes transferred",
1060           "The number of bytes transferred",
1061           0,
1062           G_MAXUINT64,
1063           0,
1064           G_PARAM_READWRITE));
1065
1066   g_object_class_install_property (object_class,
1067       PROP_IN_STREAM,
1068       g_param_spec_object ("in-stream",
1069           "transfer input stream",
1070           "The input stream for file transfer",
1071           G_TYPE_INPUT_STREAM,
1072           G_PARAM_READWRITE));
1073
1074   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1075 }