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