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   EmpathyTpFile *cached_empathy_file;
 282   EmpathyContact *contact;
 283   GInputStream *in_stream;
 284   GOutputStream *out_stream;
 285   gboolean incoming;
 286   gchar *filename;
 287   EmpFileTransferState state;
 288   EmpFileTransferStateChangeReason state_change_reason;
 289   guint64 size;
 290   guint64 transferred_bytes;
 291   gint64 start_time;
 292   gchar *unix_socket_path;
 293   gchar *content_hash;
 294   EmpFileHashType content_hash_type;
 295   gchar *content_type;
 296   gchar *description;
 297   GCancellable *cancellable;
 298 };
 299
 300 enum {
 301   PROP_0,
 302   PROP_CHANNEL,
 303   PROP_STATE,
 304   PROP_INCOMING,
 305   PROP_FILENAME,
 306   PROP_SIZE,
 307   PROP_CONTENT_TYPE,
 308   PROP_TRANSFERRED_BYTES,
 309   PROP_CONTENT_HASH_TYPE,
 310   PROP_CONTENT_HASH,
 311   PROP_IN_STREAM,
 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       if (G_IS_OBJECT (tp_file->priv->channel))
 352         g_object_unref (tp_file->priv->channel);
 353     }
 354
 355   if (tp_file->priv->factory)
 356     {
 357       g_object_unref (tp_file->priv->factory);
 358     }
 359   if (tp_file->priv->mc)
 360     {
 361       g_object_unref (tp_file->priv->mc);
 362     }
 363
 364   g_free (tp_file->priv->id);
 365   g_free (tp_file->priv->filename);
 366   g_free (tp_file->priv->unix_socket_path);
 367   g_free (tp_file->priv->description);
 368   g_free (tp_file->priv->content_hash);
 369   g_free (tp_file->priv->content_type);
 370
 371   if (tp_file->priv->in_stream)
 372     g_object_unref (tp_file->priv->in_stream);
 373
 374   if (tp_file->priv->out_stream)
 375     g_object_unref (tp_file->priv->out_stream);
 376
 377   if (tp_file->priv->contact)
 378     g_object_unref (tp_file->priv->contact);
 379
 380   if (tp_file->priv->cancellable)
 381     g_object_unref (tp_file->priv->cancellable);
 382
 383   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 384 }
 385
 386 static void
 387 tp_file_closed_cb (TpChannel *file_channel,
 388                    EmpathyTpFile *tp_file,
 389                    GObject *weak_object)
 390 {
 391   /* The channel is closed, do just like if the proxy was destroyed */
 392   g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 393       tp_file_destroy_cb,
 394       tp_file);
 395   tp_file_destroy_cb (file_channel, tp_file);
 396 }
 397
 398 static gint64
 399 get_time_msec (void)
 400 {
 401   GTimeVal tv;
 402
 403   g_get_current_time (&tv);
 404   return ((gint64) tv.tv_sec) * 1000 + tv.tv_usec / 1000;
 405 }
 406
 407 static gint
 408 _get_local_socket (EmpathyTpFile *tp_file)
 409 {
 410   gint fd;
 411   size_t path_len;
 412   struct sockaddr_un addr;
 413
 414   if (G_STR_EMPTY (tp_file->priv->unix_socket_path))
 415     return -1;
 416
 417   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 418   if (fd < 0)
 419     return -1;
 420
 421   memset (&addr, 0, sizeof (addr));
 422   addr.sun_family = AF_UNIX;
 423   path_len = strlen (tp_file->priv->unix_socket_path);
 424   strncpy (addr.sun_path, tp_file->priv->unix_socket_path, path_len);
 425
 426   if (connect (fd, (struct sockaddr*) &addr,
 427       sizeof (addr)) < 0)
 428     {
 429       close (fd);
 430       return -1;
 431     }
 432
 433   return fd;
 434 }
 435
 436 static void
 437 send_tp_file (EmpathyTpFile *tp_file)
 438 {
 439   gint socket_fd;
 440   GOutputStream *socket_stream;
 441
 442   DEBUG ("Sending file content: filename=%s",
 443       tp_file->priv->filename);
 444
 445   g_return_if_fail (tp_file->priv->in_stream);
 446
 447   socket_fd = _get_local_socket (tp_file);
 448   if (socket_fd < 0)
 449     {
 450       DEBUG ("failed to get local socket fd");
 451       return;
 452     }
 453   DEBUG ("got local socket fd");
 454   socket_stream = g_unix_output_stream_new (socket_fd, TRUE);
 455
 456   tp_file->priv->cancellable = g_cancellable_new ();
 457
 458   copy_stream (tp_file->priv->in_stream, socket_stream,
 459       tp_file->priv->cancellable);
 460
 461   g_object_unref (socket_stream);
 462 }
 463
 464 static void
 465 receive_tp_file (EmpathyTpFile *tp_file)
 466 {
 467   GInputStream *socket_stream;
 468   gint socket_fd;
 469
 470   socket_fd = _get_local_socket (tp_file);
 471
 472   if (socket_fd < 0)
 473     return;
 474
 475   socket_stream = g_unix_input_stream_new (socket_fd, TRUE);
 476
 477   tp_file->priv->cancellable = g_cancellable_new ();
 478
 479   copy_stream (socket_stream, tp_file->priv->out_stream,
 480       tp_file->priv->cancellable);
 481
 482   g_object_unref (socket_stream);
 483 }
 484
 485 static void
 486 tp_file_state_changed_cb (DBusGProxy *tp_file_iface,
 487                           EmpFileTransferState state,
 488                           EmpFileTransferStateChangeReason reason,
 489                           EmpathyTpFile *tp_file)
 490 {
 491   DEBUG ("File transfer state changed: filename=%s, "
 492       "old state=%u, state=%u, reason=%u",
 493       tp_file->priv->filename, tp_file->priv->state, state, reason);
 494
 495   if (state == EMP_FILE_TRANSFER_STATE_OPEN)
 496     tp_file->priv->start_time = get_time_msec ();
 497
 498   DEBUG ("state = %u, incoming = %s, in_stream = %s, out_stream = %s",
 499       state, tp_file->priv->incoming ? "yes" : "no",
 500       tp_file->priv->in_stream ? "present" : "not present",
 501       tp_file->priv->out_stream ? "present" : "not present");
 502
 503   if (state == EMP_FILE_TRANSFER_STATE_OPEN && !tp_file->priv->incoming &&
 504       tp_file->priv->in_stream)
 505     send_tp_file (tp_file);
 506   else if (state == EMP_FILE_TRANSFER_STATE_OPEN && tp_file->priv->incoming &&
 507       tp_file->priv->out_stream)
 508     receive_tp_file (tp_file);
 509
 510   tp_file->priv->state = state;
 511   tp_file->priv->state_change_reason = reason;
 512
 513   g_object_notify (G_OBJECT (tp_file), "state");
 514 }
 515
 516 static void
 517 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 518                                       guint64 count,
 519                                       EmpathyTpFile *tp_file,
 520                                       GObject *weak_object)
 521 {
 522   if (tp_file->priv->transferred_bytes == count)
 523     return;
 524
 525   tp_file->priv->transferred_bytes = count;
 526
 527   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 528 }
 529
 530 static GObject *
 531 tp_file_constructor (GType type,
 532                      guint n_props,
 533                      GObjectConstructParam *props)
 534 {
 535   GObject *file_obj;
 536   EmpathyTpFile *tp_file;
 537   TpHandle handle;
 538   GHashTable *properties;
 539   McAccount *account;
 540
 541   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 542       n_props, props);
 543
 544   tp_file = EMPATHY_TP_FILE (file_obj);
 545
 546   tp_file->priv->factory = empathy_contact_factory_new ();
 547   tp_file->priv->mc = empathy_mission_control_new ();
 548
 549   tp_cli_channel_connect_to_closed (tp_file->priv->channel,
 550       (tp_cli_channel_signal_callback_closed) tp_file_closed_cb,
 551       tp_file,
 552       NULL, NULL, NULL);
 553
 554   emp_cli_channel_type_file_connect_to_file_transfer_state_changed (
 555       TP_PROXY (tp_file->priv->channel),
 556       (emp_cli_channel_type_file_signal_callback_file_transfer_state_changed)
 557           tp_file_state_changed_cb,
 558       tp_file,
 559       NULL, NULL, NULL);
 560
 561   emp_cli_channel_type_file_connect_to_transferred_bytes_changed (
 562       TP_PROXY (tp_file->priv->channel),
 563       (emp_cli_channel_type_file_signal_callback_transferred_bytes_changed)
 564           tp_file_transferred_bytes_changed_cb,
 565       tp_file,
 566       NULL, NULL, NULL);
 567
 568   account = empathy_channel_get_account (tp_file->priv->channel);
 569
 570   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 571   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 572       tp_file->priv->factory, account, (guint) handle);
 573
 574   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 575       -1, EMP_IFACE_CHANNEL_TYPE_FILE, &properties, NULL, NULL);
 576
 577   tp_file->priv->size = g_value_get_uint64 (
 578       g_hash_table_lookup (properties, "Size"));
 579
 580   tp_file->priv->state = g_value_get_uint (
 581       g_hash_table_lookup (properties, "State"));
 582
 583   /* Invalid reason, so empathy_file_get_state_change_reason() can give
 584    * a warning if called for a not closed file transfer. */
 585   tp_file->priv->state_change_reason = -1;
 586
 587   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 588       g_hash_table_lookup (properties, "TransferredBytes"));
 589
 590   tp_file->priv->filename = g_value_dup_string (
 591       g_hash_table_lookup (properties, "Filename"));
 592
 593   tp_file->priv->content_hash = g_value_dup_string (
 594       g_hash_table_lookup (properties, "ContentHash"));
 595
 596   tp_file->priv->description = g_value_dup_string (
 597       g_hash_table_lookup (properties, "Description"));
 598
 599   if (tp_file->priv->state == EMP_FILE_TRANSFER_STATE_LOCAL_PENDING)
 600     tp_file->priv->incoming = TRUE;
 601
 602   g_hash_table_destroy (properties);
 603   g_object_unref (account);
 604
 605   return file_obj;
 606 }
 607
 608 static void
 609 tp_file_get_property (GObject *object,
 610                       guint param_id,
 611                       GValue *value,
 612                       GParamSpec *pspec)
 613 {
 614   EmpathyTpFile *tp_file;
 615
 616   tp_file = EMPATHY_TP_FILE (object);
 617
 618   switch (param_id)
 619     {
 620       case PROP_CHANNEL:
 621         g_value_set_object (value, tp_file->priv->channel);
 622         break;
 623       default:
 624         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 625         break;
 626     };
 627 }
 628
 629 static void
 630 tp_file_channel_set_dbus_property (gpointer proxy,
 631                                    const gchar *property,
 632                                    const GValue *value)
 633 {
 634         DEBUG ("Setting %s property", property);
 635         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 636             EMP_IFACE_CHANNEL_TYPE_FILE, property, value,
 637             NULL, NULL, NULL, NULL);
 638 }
 639
 640
 641 static void
 642 tp_file_set_property (GObject *object,
 643                       guint param_id,
 644                       const GValue *value,
 645                       GParamSpec *pspec)
 646 {
 647   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 648   switch (param_id)
 649     {
 650       case PROP_CHANNEL:
 651         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 652         break;
 653       case PROP_STATE:
 654         tp_file->priv->state = g_value_get_uint (value);
 655         break;
 656       case PROP_INCOMING:
 657         tp_file->priv->incoming = g_value_get_boolean (value);
 658         break;
 659       case PROP_FILENAME:
 660         g_free (tp_file->priv->filename);
 661         tp_file->priv->filename = g_value_dup_string (value);
 662         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 663             "Filename", value);
 664         break;
 665       case PROP_SIZE:
 666         tp_file->priv->size = g_value_get_uint64 (value);
 667         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 668             "Size", value);
 669         break;
 670       case PROP_CONTENT_TYPE:
 671         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 672             "ContentType", value);
 673         g_free (tp_file->priv->content_type);
 674         tp_file->priv->content_type = g_value_dup_string (value);
 675         break;
 676       case PROP_CONTENT_HASH:
 677         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 678             "ContentHash", value);
 679         g_free (tp_file->priv->content_hash);
 680         tp_file->priv->content_hash = g_value_dup_string (value);
 681         break;
 682       case PROP_IN_STREAM:
 683         if (tp_file->priv->in_stream)
 684           g_object_unref (tp_file->priv->in_stream);
 685         tp_file->priv->in_stream = g_object_ref (g_value_get_object (value));
 686         break;
 687       default:
 688         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 689         break;
 690     };
 691 }
 692
 693 /**
 694  * empathy_tp_file_new:
 695  * @channel: a Telepathy channel
 696  *
 697  * Creates a new #EmpathyTpFile wrapping @channel.
 698  *
 699  * Returns: a new #EmpathyTpFile
 700  */
 701 EmpathyTpFile *
 702 empathy_tp_file_new (TpChannel *channel)
 703 {
 704   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 705
 706   return g_object_new (EMPATHY_TYPE_TP_FILE,
 707       "channel", channel,
 708       NULL);
 709 }
 710
 711 /**
 712  * empathy_tp_file_get_id:
 713  * @tp_file: an #EmpathyTpFile
 714  *
 715  * Returns the ID of @tp_file.
 716  *
 717  * Returns: the ID
 718  */
 719 const gchar *
 720 empathy_tp_file_get_id (EmpathyTpFile *tp_file)
 721 {
 722   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 723
 724   return tp_file->priv->id;
 725 }
 726
 727 /**
 728  * empathy_tp_file_get_channel
 729  * @tp_file: an #EmpathyTpFile
 730  *
 731  * Returns the Telepathy file transfer channel
 732  *
 733  * Returns: the #TpChannel
 734  */
 735 TpChannel *
 736 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 737 {
 738   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 739
 740   return tp_file->priv->channel;
 741 }
 742
 743 static void
 744 tp_file_method_cb (TpProxy *proxy,
 745                    const GValue *address,
 746                    const GError *error,
 747                    gpointer user_data,
 748                    GObject *weak_object)
 749 {
 750   EmpathyTpFile *tp_file = (EmpathyTpFile *) user_data;
 751
 752   if (error)
 753     {
 754       DEBUG ("Error: %s", error->message);
 755       return;
 756     }
 757
 758   if (tp_file->priv->unix_socket_path)
 759     g_free (tp_file->priv->unix_socket_path);
 760
 761   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 762
 763   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 764 }
 765
 766
 767 /**
 768  * empathy_tp_file_accept:
 769  * @tp_file: an #EmpathyTpFile
 770  *
 771  * Accepts a file transfer that's in the "local pending" state (i.e.
 772  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 773  */
 774 void
 775 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 776                         guint64 offset)
 777 {
 778   GValue nothing = { 0 };
 779
 780   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 781
 782   g_return_if_fail (tp_file->priv->out_stream != NULL);
 783
 784   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 785
 786   g_value_init (&nothing, G_TYPE_STRING);
 787   g_value_set_string (&nothing, "");
 788
 789   emp_cli_channel_type_file_call_accept_file (TP_PROXY (tp_file->priv->channel),
 790       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 791       &nothing, offset, tp_file_method_cb, tp_file, NULL, NULL);
 792 }
 793
 794 /**
 795  * empathy_tp_file_offer:
 796  * @tp_file: an #EmpathyTpFile
 797  *
 798  * Offers a file transfer that's in the "not offered" state (i.e.
 799  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 800  */
 801 void
 802 empathy_tp_file_offer (EmpathyTpFile *tp_file)
 803 {
 804   GValue nothing = { 0 };
 805
 806   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 807
 808   g_value_init (&nothing, G_TYPE_STRING);
 809   g_value_set_string (&nothing, "");
 810
 811   emp_cli_channel_type_file_call_offer_file (
 812       TP_PROXY (tp_file->priv->channel), -1,
 813       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 814       &nothing, tp_file_method_cb, tp_file, NULL, NULL);
 815 }
 816
 817 EmpathyContact *
 818 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 819 {
 820   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 821   return tp_file->priv->contact;
 822 }
 823
 824 GInputStream *
 825 empathy_tp_file_get_input_stream (EmpathyTpFile *tp_file)
 826 {
 827   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 828   return tp_file->priv->in_stream;
 829 }
 830
 831 GOutputStream *
 832 empathy_tp_file_get_output_stream (EmpathyTpFile *tp_file)
 833 {
 834   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 835   return tp_file->priv->out_stream;
 836 }
 837
 838 const gchar *
 839 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 840 {
 841   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 842   return tp_file->priv->filename;
 843 }
 844
 845 gboolean
 846 empathy_tp_file_get_incoming (EmpathyTpFile *tp_file)
 847 {
 848   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 849   return tp_file->priv->incoming;
 850 }
 851
 852 EmpFileTransferState
 853 empathy_tp_file_get_state (EmpathyTpFile *tp_file)
 854 {
 855   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 856       EMP_FILE_TRANSFER_STATE_NONE);
 857   return tp_file->priv->state;
 858 }
 859
 860 EmpFileTransferStateChangeReason
 861 empathy_tp_file_get_state_change_reason (EmpathyTpFile *tp_file)
 862 {
 863   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 864       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 865   g_return_val_if_fail (tp_file->priv->state_change_reason >= 0,
 866       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE);
 867
 868   return tp_file->priv->state_change_reason;
 869 }
 870
 871 guint64
 872 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 873 {
 874   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 875       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 876   return tp_file->priv->size;
 877 }
 878
 879 guint64
 880 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 881 {
 882   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 883   return tp_file->priv->transferred_bytes;
 884 }
 885
 886 gint
 887 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 888 {
 889   gint64 curr_time, elapsed_time;
 890   gdouble time_per_byte;
 891   gdouble remaining_time;
 892
 893   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 894
 895   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 896     return -1;
 897
 898   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 899     return 0;
 900
 901   curr_time = get_time_msec ();
 902   elapsed_time = curr_time - tp_file->priv->start_time;
 903   time_per_byte = (gdouble) elapsed_time /
 904       (gdouble) tp_file->priv->transferred_bytes;
 905   remaining_time = (time_per_byte * (tp_file->priv->size -
 906       tp_file->priv->transferred_bytes)) / 1000;
 907
 908   return (gint) (remaining_time + 0.5);
 909 }
 910
 911 void
 912 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 913 {
 914   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 915
 916   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 917
 918   g_cancellable_cancel (tp_file->priv->cancellable);
 919 }
 920
 921 void
 922 empathy_tp_file_set_input_stream (EmpathyTpFile *tp_file,
 923                                   GInputStream *in_stream)
 924 {
 925   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 926   g_return_if_fail (G_IS_INPUT_STREAM (in_stream));
 927
 928   if (tp_file->priv->in_stream == in_stream)
 929     return;
 930
 931   if (tp_file->priv->incoming)
 932     g_warning ("Setting an input stream for incoming file "
 933          "transfers is useless");
 934
 935   if (tp_file->priv->in_stream)
 936     g_object_unref (tp_file->priv->in_stream);
 937
 938   if (in_stream)
 939     g_object_ref (in_stream);
 940
 941   tp_file->priv->in_stream = in_stream;
 942
 943   g_object_notify (G_OBJECT (tp_file), "in-stream");
 944 }
 945
 946 void
 947 empathy_tp_file_set_output_stream (EmpathyTpFile *tp_file,
 948                                    GOutputStream *out_stream)
 949 {
 950   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 951   g_return_if_fail (G_IS_OUTPUT_STREAM (out_stream));
 952
 953   if (tp_file->priv->out_stream == out_stream)
 954     return;
 955
 956   if (!tp_file->priv->incoming)
 957     g_warning ("Setting an output stream for outgoing file "
 958          "transfers is useless");
 959
 960   if (tp_file->priv->out_stream)
 961     g_object_unref (tp_file->priv->out_stream);
 962
 963   if (out_stream)
 964     g_object_ref (out_stream);
 965
 966   tp_file->priv->out_stream = out_stream;
 967 }
 968
 969 void
 970 empathy_tp_file_set_filename (EmpathyTpFile *tp_file,
 971                               const gchar *filename)
 972 {
 973   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 974   g_return_if_fail (filename != NULL);
 975
 976   if (tp_file->priv->filename && strcmp (filename,
 977       tp_file->priv->filename) == 0)
 978     return;
 979
 980   g_free (tp_file->priv->filename);
 981   tp_file->priv->filename = g_strdup (filename);
 982
 983   g_object_notify (G_OBJECT (tp_file), "filename");
 984 }
 985
 986 static void
 987 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 988 {
 989   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 990
 991   object_class->finalize = tp_file_finalize;
 992   object_class->constructor = tp_file_constructor;
 993   object_class->get_property = tp_file_get_property;
 994   object_class->set_property = tp_file_set_property;
 995
 996   /* Construct-only properties */
 997   g_object_class_install_property (object_class,
 998       PROP_CHANNEL,
 999       g_param_spec_object ("channel",
1000           "telepathy channel",
1001           "The file transfer channel",
1002           TP_TYPE_CHANNEL,
1003           G_PARAM_READWRITE |
1004           G_PARAM_CONSTRUCT_ONLY));
1005
1006   g_object_class_install_property (object_class,
1007       PROP_STATE,
1008       g_param_spec_uint ("state",
1009           "state of the transfer",
1010           "The file transfer state",
1011           0,
1012           G_MAXUINT,
1013           G_MAXUINT,
1014           G_PARAM_READWRITE |
1015           G_PARAM_CONSTRUCT));
1016
1017   g_object_class_install_property (object_class,
1018       PROP_INCOMING,
1019       g_param_spec_boolean ("incoming",
1020           "incoming",
1021           "Whether the transfer is incoming",
1022           FALSE,
1023           G_PARAM_READWRITE |
1024           G_PARAM_CONSTRUCT));
1025
1026   g_object_class_install_property (object_class,
1027       PROP_FILENAME,
1028       g_param_spec_string ("filename",
1029           "name of the transfer",
1030           "The file transfer filename",
1031           "",
1032           G_PARAM_READWRITE));
1033
1034   g_object_class_install_property (object_class,
1035       PROP_SIZE,
1036       g_param_spec_uint64 ("size",
1037           "size of the file",
1038           "The file transfer size",
1039           0,
1040           G_MAXUINT64,
1041           G_MAXUINT64,
1042           G_PARAM_READWRITE));
1043
1044   g_object_class_install_property (object_class,
1045       PROP_CONTENT_TYPE,
1046       g_param_spec_string ("content-type",
1047           "file transfer content-type",
1048           "The file transfer content-type",
1049           "",
1050           G_PARAM_READWRITE));
1051
1052   g_object_class_install_property (object_class,
1053       PROP_CONTENT_HASH_TYPE,
1054       g_param_spec_uint ("content-hash-type",
1055           "file transfer hash type",
1056           "The type of the file transfer hash",
1057           0,
1058           G_MAXUINT,
1059           0,
1060           G_PARAM_READWRITE));
1061
1062   g_object_class_install_property (object_class,
1063       PROP_CONTENT_HASH,
1064       g_param_spec_string ("content-hash",
1065           "file transfer hash",
1066           "The hash of the transfer's contents",
1067           "",
1068           G_PARAM_READWRITE));
1069
1070   g_object_class_install_property (object_class,
1071       PROP_TRANSFERRED_BYTES,
1072       g_param_spec_uint64 ("transferred-bytes",
1073           "bytes transferred",
1074           "The number of bytes transferred",
1075           0,
1076           G_MAXUINT64,
1077           0,
1078           G_PARAM_READWRITE));
1079
1080   g_object_class_install_property (object_class,
1081       PROP_IN_STREAM,
1082       g_param_spec_object ("in-stream",
1083           "transfer input stream",
1084           "The input stream for file transfer",
1085           G_TYPE_INPUT_STREAM,
1086           G_PARAM_READWRITE));
1087
1088   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1089 }