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
 337   if (tp_file->priv->state != EMP_FILE_TRANSFER_STATE_COMPLETED &&
 338       tp_file->priv->state != EMP_FILE_TRANSFER_STATE_CANCELLED)
 339     {
 340       /* The channel is not in a finished state, an error occured */
 341       tp_file->priv->state = EMP_FILE_TRANSFER_STATE_CANCELLED;
 342       tp_file->priv->state_change_reason =
 343           EMP_FILE_TRANSFER_STATE_CHANGE_REASON_LOCAL_ERROR;
 344       g_object_notify (G_OBJECT (tp_file), "state");
 345     }
 346 }
 347
 348 static void
 349 tp_file_finalize (GObject *object)
 350 {
 351   EmpathyTpFile *tp_file;
 352
 353   tp_file = EMPATHY_TP_FILE (object);
 354
 355   if (tp_file->priv->channel)
 356     {
 357       DEBUG ("Closing channel..");
 358       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 359           tp_file_invalidated_cb, object);
 360       tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL,
 361           NULL, NULL);
 362       g_object_unref (tp_file->priv->channel);
 363     }
 364
 365   if (tp_file->priv->factory)
 366     {
 367       g_object_unref (tp_file->priv->factory);
 368     }
 369   if (tp_file->priv->mc)
 370     {
 371       g_object_unref (tp_file->priv->mc);
 372     }
 373
 374   g_free (tp_file->priv->filename);
 375   g_free (tp_file->priv->unix_socket_path);
 376   g_free (tp_file->priv->description);
 377   g_free (tp_file->priv->content_hash);
 378   g_free (tp_file->priv->content_type);
 379
 380   if (tp_file->priv->in_stream)
 381     g_object_unref (tp_file->priv->in_stream);
 382
 383   if (tp_file->priv->out_stream)
 384     g_object_unref (tp_file->priv->out_stream);
 385
 386   if (tp_file->priv->contact)
 387     g_object_unref (tp_file->priv->contact);
 388
 389   if (tp_file->priv->cancellable)
 390     g_object_unref (tp_file->priv->cancellable);
 391
 392   G_OBJECT_CLASS (empathy_tp_file_parent_class)->finalize (object);
 393 }
 394
 395 static void
 396 tp_file_start_transfer (EmpathyTpFile *tp_file)
 397 {
 398   gint fd;
 399   size_t path_len;
 400   struct sockaddr_un addr;
 401
 402   fd = socket (PF_UNIX, SOCK_STREAM, 0);
 403   if (fd < 0)
 404     {
 405       DEBUG ("Failed to create socket, closing channel");
 406       empathy_tp_file_cancel (tp_file);
 407       return;
 408     }
 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, sizeof (addr)) < 0)
 416     {
 417       DEBUG ("Failed to connect socket, closing channel");
 418       empathy_tp_file_cancel (tp_file);
 419       close (fd);
 420       return;
 421     }
 422
 423   DEBUG ("Start the transfer");
 424
 425   tp_file->priv->start_time = empathy_time_get_current ();
 426   tp_file->priv->cancellable = g_cancellable_new ();
 427   if (tp_file->priv->incoming)
 428     {
 429       GInputStream *socket_stream;
 430
 431       socket_stream = g_unix_input_stream_new (fd, TRUE);
 432       copy_stream (socket_stream, tp_file->priv->out_stream,
 433           tp_file->priv->cancellable);
 434       g_object_unref (socket_stream);
 435     }
 436   else
 437     {
 438       GOutputStream *socket_stream;
 439
 440       socket_stream = g_unix_output_stream_new (fd, TRUE);
 441       copy_stream (tp_file->priv->in_stream, socket_stream,
 442           tp_file->priv->cancellable);
 443       g_object_unref (socket_stream);
 444     }
 445 }
 446
 447 static void
 448 tp_file_state_changed_cb (TpProxy *proxy,
 449                           guint state,
 450                           guint reason,
 451                           gpointer user_data,
 452                           GObject *weak_object)
 453 {
 454   EmpathyTpFile *tp_file = EMPATHY_TP_FILE (weak_object);
 455
 456   if (state == tp_file->priv->state)
 457     return;
 458
 459   DEBUG ("File transfer state changed:\n"
 460       "\tfilename = %s, old state = %u, state = %u, reason = %u\n"
 461       "\tincoming = %s, in_stream = %s, out_stream = %s",
 462       tp_file->priv->filename, tp_file->priv->state, state, reason,
 463       tp_file->priv->incoming ? "yes" : "no",
 464       tp_file->priv->in_stream ? "present" : "not present",
 465       tp_file->priv->out_stream ? "present" : "not present");
 466
 467   /* If the channel is open AND we have the socket path, we can start the
 468    * transfer. The socket path could be NULL if we are not doing the actual
 469    * data transfer but are just an observer for the channel. */
 470   if (state == EMP_FILE_TRANSFER_STATE_OPEN &&
 471       tp_file->priv->unix_socket_path != NULL)
 472     tp_file_start_transfer (tp_file);
 473
 474   tp_file->priv->state = state;
 475   tp_file->priv->state_change_reason = reason;
 476
 477   g_object_notify (G_OBJECT (tp_file), "state");
 478 }
 479
 480 static void
 481 tp_file_transferred_bytes_changed_cb (TpProxy *proxy,
 482                                       guint64 count,
 483                                       gpointer user_data,
 484                                       GObject *weak_object)
 485 {
 486   EmpathyTpFile *tp_file = EMPATHY_TP_FILE (weak_object);
 487
 488   if (tp_file->priv->transferred_bytes == count)
 489     return;
 490
 491   tp_file->priv->transferred_bytes = count;
 492   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 493 }
 494
 495 static GObject *
 496 tp_file_constructor (GType type,
 497                      guint n_props,
 498                      GObjectConstructParam *props)
 499 {
 500   GObject *file_obj;
 501   EmpathyTpFile *tp_file;
 502   TpHandle handle;
 503   GHashTable *properties;
 504   McAccount *account;
 505   GValue *requested;
 506
 507   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 508       n_props, props);
 509
 510   tp_file = EMPATHY_TP_FILE (file_obj);
 511
 512   tp_file->priv->factory = empathy_contact_factory_new ();
 513   tp_file->priv->mc = empathy_mission_control_new ();
 514
 515   g_signal_connect (tp_file->priv->channel, "invalidated",
 516     G_CALLBACK (tp_file_invalidated_cb), tp_file);
 517
 518   emp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 519       TP_PROXY (tp_file->priv->channel), tp_file_state_changed_cb, NULL, NULL,
 520       G_OBJECT (tp_file), NULL);
 521
 522   emp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 523       TP_PROXY (tp_file->priv->channel), tp_file_transferred_bytes_changed_cb,
 524       NULL, NULL, G_OBJECT (tp_file), NULL);
 525
 526   account = empathy_channel_get_account (tp_file->priv->channel);
 527
 528   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 529   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 530       tp_file->priv->factory, account, (guint) handle);
 531
 532   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 533       -1, EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 534
 535   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 536       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 537
 538   tp_file->priv->size = g_value_get_uint64 (
 539       g_hash_table_lookup (properties, "Size"));
 540
 541   tp_file->priv->state = g_value_get_uint (
 542       g_hash_table_lookup (properties, "State"));
 543
 544   tp_file->priv->state_change_reason =
 545       EMP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 546
 547   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 548       g_hash_table_lookup (properties, "TransferredBytes"));
 549
 550   tp_file->priv->filename = g_value_dup_string (
 551       g_hash_table_lookup (properties, "Filename"));
 552
 553   tp_file->priv->content_hash = g_value_dup_string (
 554       g_hash_table_lookup (properties, "ContentHash"));
 555
 556   tp_file->priv->content_hash_type = g_value_get_uint (
 557       g_hash_table_lookup (properties, "ContentHashType"));
 558
 559   tp_file->priv->content_type = g_value_dup_string (
 560       g_hash_table_lookup (properties, "ContentType"));
 561
 562   tp_file->priv->description = g_value_dup_string (
 563       g_hash_table_lookup (properties, "Description"));
 564
 565   tp_file->priv->incoming = !g_value_get_boolean (requested);
 566
 567   g_hash_table_destroy (properties);
 568   g_object_unref (account);
 569   g_value_unset (requested);
 570
 571   return file_obj;
 572 }
 573
 574 static void
 575 tp_file_get_property (GObject *object,
 576                       guint param_id,
 577                       GValue *value,
 578                       GParamSpec *pspec)
 579 {
 580   EmpathyTpFile *tp_file;
 581
 582   tp_file = EMPATHY_TP_FILE (object);
 583
 584   switch (param_id)
 585     {
 586       case PROP_CHANNEL:
 587         g_value_set_object (value, tp_file->priv->channel);
 588         break;
 589       case PROP_INCOMING:
 590         g_value_set_boolean (value, tp_file->priv->incoming);
 591         break;
 592       case PROP_STATE:
 593         g_value_set_uint (value, tp_file->priv->state);
 594         break;
 595       case PROP_CONTENT_TYPE:
 596         g_value_set_string (value, tp_file->priv->content_type);
 597         break;
 598       case PROP_FILENAME:
 599         g_value_set_string (value, tp_file->priv->filename);
 600         break;
 601       case PROP_SIZE:
 602         g_value_set_uint64 (value, tp_file->priv->size);
 603         break;
 604       case PROP_CONTENT_HASH_TYPE:
 605         g_value_set_uint (value, tp_file->priv->content_hash_type);
 606         break;
 607       case PROP_CONTENT_HASH:
 608         g_value_set_string (value, tp_file->priv->content_hash);
 609         break;
 610       case PROP_TRANSFERRED_BYTES:
 611         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 612         break;
 613       default:
 614         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 615         break;
 616     };
 617 }
 618
 619 static void
 620 tp_file_channel_set_dbus_property (gpointer proxy,
 621                                    const gchar *property,
 622                                    const GValue *value)
 623 {
 624         DEBUG ("Setting %s property", property);
 625         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 626             EMP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 627             NULL, NULL, NULL, NULL);
 628 }
 629
 630 static void
 631 tp_file_set_property (GObject *object,
 632                       guint param_id,
 633                       const GValue *value,
 634                       GParamSpec *pspec)
 635 {
 636   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 637   switch (param_id)
 638     {
 639       case PROP_CHANNEL:
 640         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 641         break;
 642       case PROP_STATE:
 643         tp_file->priv->state = g_value_get_uint (value);
 644         break;
 645       case PROP_INCOMING:
 646         tp_file->priv->incoming = g_value_get_boolean (value);
 647         break;
 648       case PROP_FILENAME:
 649         g_free (tp_file->priv->filename);
 650         tp_file->priv->filename = g_value_dup_string (value);
 651         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 652             "Filename", value);
 653         break;
 654       case PROP_SIZE:
 655         tp_file->priv->size = g_value_get_uint64 (value);
 656         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 657             "Size", value);
 658         break;
 659       case PROP_CONTENT_TYPE:
 660         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 661             "ContentType", value);
 662         g_free (tp_file->priv->content_type);
 663         tp_file->priv->content_type = g_value_dup_string (value);
 664         break;
 665       case PROP_CONTENT_HASH:
 666         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 667             "ContentHash", value);
 668         g_free (tp_file->priv->content_hash);
 669         tp_file->priv->content_hash = g_value_dup_string (value);
 670         break;
 671       default:
 672         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 673         break;
 674     };
 675 }
 676
 677 /**
 678  * empathy_tp_file_new:
 679  * @channel: a Telepathy channel
 680  *
 681  * Creates a new #EmpathyTpFile wrapping @channel.
 682  *
 683  * Returns: a new #EmpathyTpFile
 684  */
 685 EmpathyTpFile *
 686 empathy_tp_file_new (TpChannel *channel)
 687 {
 688   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 689
 690   return g_object_new (EMPATHY_TYPE_TP_FILE,
 691       "channel", channel,
 692       NULL);
 693 }
 694
 695 /**
 696  * empathy_tp_file_get_channel
 697  * @tp_file: an #EmpathyTpFile
 698  *
 699  * Returns the Telepathy file transfer channel
 700  *
 701  * Returns: the #TpChannel
 702  */
 703 TpChannel *
 704 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 705 {
 706   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 707
 708   return tp_file->priv->channel;
 709 }
 710
 711 static void
 712 tp_file_method_cb (TpProxy *proxy,
 713                    const GValue *address,
 714                    const GError *error,
 715                    gpointer user_data,
 716                    GObject *weak_object)
 717 {
 718   EmpathyTpFile *tp_file = (EmpathyTpFile *) weak_object;
 719
 720   if (error)
 721     {
 722       DEBUG ("Error: %s", error->message);
 723       empathy_tp_file_cancel (tp_file);
 724       return;
 725     }
 726
 727   tp_file->priv->unix_socket_path = g_value_dup_string (address);
 728
 729   DEBUG ("Got unix socket path: %s", tp_file->priv->unix_socket_path);
 730 }
 731
 732 /**
 733  * empathy_tp_file_accept:
 734  * @tp_file: an #EmpathyTpFile
 735  * @offset: position where to start the transfer
 736  * @gfile: a #GFile where to write transfered data
 737  * @error: a #GError set if there is an error when opening @gfile
 738  *
 739  * Accepts a file transfer that's in the "local pending" state (i.e.
 740  * EMP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 741  */
 742 void
 743 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 744                         guint64 offset,
 745                         GFile *gfile,
 746                         GError **error)
 747 {
 748   GValue nothing = { 0 };
 749
 750   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 751   g_return_if_fail (G_IS_FILE (gfile));
 752
 753   tp_file->priv->out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL,
 754         FALSE, 0, NULL, error));
 755   if (error && *error)
 756     return;
 757
 758   tp_file->priv->filename = g_file_get_basename (gfile);
 759   g_object_notify (G_OBJECT (tp_file), "filename");
 760
 761   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 762
 763   g_value_init (&nothing, G_TYPE_STRING);
 764   g_value_set_static_string (&nothing, "");
 765
 766   emp_cli_channel_type_file_transfer_call_accept_file (TP_PROXY (
 767       tp_file->priv->channel),
 768       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 769       &nothing, offset, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 770 }
 771
 772 /**
 773  * empathy_tp_file_offer:
 774  * @tp_file: an #EmpathyTpFile
 775  * @gfile: a #GFile where to read the data to transfer
 776  * @error: a #GError set if there is an error when opening @gfile
 777  *
 778  * Offers a file transfer that's in the "not offered" state (i.e.
 779  * EMP_FILE_TRANSFER_STATE_NOT_OFFERED).
 780  */
 781 void
 782 empathy_tp_file_offer (EmpathyTpFile *tp_file, GFile *gfile, GError **error)
 783 {
 784   GValue nothing = { 0 };
 785
 786   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 787
 788   tp_file->priv->in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, error));
 789   if (error && *error)
 790         return;
 791
 792   g_value_init (&nothing, G_TYPE_STRING);
 793   g_value_set_static_string (&nothing, "");
 794
 795   emp_cli_channel_type_file_transfer_call_provide_file (
 796       TP_PROXY (tp_file->priv->channel), -1,
 797       TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 798       &nothing, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 799 }
 800
 801 EmpathyContact *
 802 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 803 {
 804   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 805   return tp_file->priv->contact;
 806 }
 807
 808 const gchar *
 809 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 810 {
 811   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 812   return tp_file->priv->filename;
 813 }
 814
 815 gboolean
 816 empathy_tp_file_is_incoming (EmpathyTpFile *tp_file)
 817 {
 818   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 819   return tp_file->priv->incoming;
 820 }
 821
 822 EmpFileTransferState
 823 empathy_tp_file_get_state (EmpathyTpFile *tp_file,
 824                            EmpFileTransferStateChangeReason *reason)
 825 {
 826   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 827       EMP_FILE_TRANSFER_STATE_NONE);
 828
 829   if (reason != NULL)
 830     *reason = tp_file->priv->state_change_reason;
 831
 832   return tp_file->priv->state;
 833 }
 834
 835 guint64
 836 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 837 {
 838   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 839       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 840   return tp_file->priv->size;
 841 }
 842
 843 guint64
 844 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 845 {
 846   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 847   return tp_file->priv->transferred_bytes;
 848 }
 849
 850 gint
 851 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 852 {
 853   time_t curr_time, elapsed_time;
 854   gdouble time_per_byte;
 855   gdouble remaining_time;
 856
 857   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 858
 859   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 860     return -1;
 861
 862   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 863     return 0;
 864
 865   curr_time = empathy_time_get_current ();
 866   elapsed_time = curr_time - tp_file->priv->start_time;
 867   time_per_byte = (gdouble) elapsed_time /
 868       (gdouble) tp_file->priv->transferred_bytes;
 869   remaining_time = time_per_byte * (tp_file->priv->size -
 870       tp_file->priv->transferred_bytes);
 871
 872   return (gint) remaining_time;
 873 }
 874
 875 void
 876 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 877 {
 878   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 879
 880   tp_cli_channel_call_close (tp_file->priv->channel, -1, NULL, NULL, NULL, NULL);
 881
 882   if (tp_file->priv->cancellable != NULL)
 883     g_cancellable_cancel (tp_file->priv->cancellable);
 884 }
 885
 886 static void
 887 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 888 {
 889   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 890
 891   object_class->finalize = tp_file_finalize;
 892   object_class->constructor = tp_file_constructor;
 893   object_class->get_property = tp_file_get_property;
 894   object_class->set_property = tp_file_set_property;
 895
 896   /* Construct-only properties */
 897   g_object_class_install_property (object_class,
 898       PROP_CHANNEL,
 899       g_param_spec_object ("channel",
 900           "telepathy channel",
 901           "The file transfer channel",
 902           TP_TYPE_CHANNEL,
 903           G_PARAM_READWRITE |
 904           G_PARAM_CONSTRUCT_ONLY));
 905
 906   g_object_class_install_property (object_class,
 907       PROP_STATE,
 908       g_param_spec_uint ("state",
 909           "state of the transfer",
 910           "The file transfer state",
 911           0,
 912           G_MAXUINT,
 913           G_MAXUINT,
 914           G_PARAM_READWRITE |
 915           G_PARAM_CONSTRUCT));
 916
 917   g_object_class_install_property (object_class,
 918       PROP_INCOMING,
 919       g_param_spec_boolean ("incoming",
 920           "incoming",
 921           "Whether the transfer is incoming",
 922           FALSE,
 923           G_PARAM_READWRITE |
 924           G_PARAM_CONSTRUCT));
 925
 926   g_object_class_install_property (object_class,
 927       PROP_FILENAME,
 928       g_param_spec_string ("filename",
 929           "name of the transfer",
 930           "The file transfer filename",
 931           "",
 932           G_PARAM_READWRITE));
 933
 934   g_object_class_install_property (object_class,
 935       PROP_SIZE,
 936       g_param_spec_uint64 ("size",
 937           "size of the file",
 938           "The file transfer size",
 939           0,
 940           G_MAXUINT64,
 941           G_MAXUINT64,
 942           G_PARAM_READWRITE));
 943
 944   g_object_class_install_property (object_class,
 945       PROP_CONTENT_TYPE,
 946       g_param_spec_string ("content-type",
 947           "file transfer content-type",
 948           "The file transfer content-type",
 949           "",
 950           G_PARAM_READWRITE));
 951
 952   g_object_class_install_property (object_class,
 953       PROP_CONTENT_HASH_TYPE,
 954       g_param_spec_uint ("content-hash-type",
 955           "file transfer hash type",
 956           "The type of the file transfer hash",
 957           0,
 958           G_MAXUINT,
 959           0,
 960           G_PARAM_READWRITE));
 961
 962   g_object_class_install_property (object_class,
 963       PROP_CONTENT_HASH,
 964       g_param_spec_string ("content-hash",
 965           "file transfer hash",
 966           "The hash of the transfer's contents",
 967           "",
 968           G_PARAM_READWRITE));
 969
 970   g_object_class_install_property (object_class,
 971       PROP_TRANSFERRED_BYTES,
 972       g_param_spec_uint64 ("transferred-bytes",
 973           "bytes transferred",
 974           "The number of bytes transferred",
 975           0,
 976           G_MAXUINT64,
 977           0,
 978           G_PARAM_READWRITE));
 979
 980   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
 981 }
 982