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-lib.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 #include <telepathy-glib/util.h>
  40
  41 #include "empathy-tp-file.h"
  42 #include "empathy-contact-factory.h"
  43 #include "empathy-marshal.h"
  44 #include "empathy-time.h"
  45 #include "empathy-utils.h"
  46
  47 #include "extensions/extensions.h"
  48
  49 #define DEBUG_FLAG EMPATHY_DEBUG_FT
  50 #include "empathy-debug.h"
  51
  52 /**
  53  * SECTION:empathy-tp-file
  54  * @short_description: File channel
  55  * @see_also: #EmpathyTpFile, #EmpathyContact, empathy_dispatcher_send_file()
  56  * @include: libempthy/empathy-tp-file.h
  57  *
  58  * The #EmpathyTpFile object represents a Telepathy file channel.
  59  */
  60
  61 /**
  62  * EMPATHY_TP_FILE_UNKNOWN_SIZE:
  63  *
  64  * Value used for the "size" or "estimated-size" properties when the size of
  65  * the transferred file is unknown.
  66  */
  67
  68 /* Functions to copy the content of a GInputStream to a GOutputStream */
  69
  70 #define N_BUFFERS 2
  71 #define BUFFER_SIZE 4096
  72
  73 typedef struct {
  74   GInputStream *in;
  75   GOutputStream *out;
  76   GCancellable  *cancellable;
  77   char *buff[N_BUFFERS]; /* the temporary buffers */
  78   gsize count[N_BUFFERS]; /* how many bytes are used in the buffers */
  79   gboolean is_full[N_BUFFERS]; /* whether the buffers contain data */
  80   gint curr_read; /* index of the buffer used for reading */
  81   gint curr_write; /* index of the buffer used for writing */
  82   gboolean is_reading; /* we are reading */
  83   gboolean is_writing; /* we are writing */
  84   guint n_closed; /* number of streams that have been closed */
  85   gint ref_count;
  86 } CopyData;
  87
  88 static void schedule_next (CopyData *copy);
  89
  90 static void
  91 copy_data_unref (CopyData *copy)
  92 {
  93   if (--copy->ref_count == 0)
  94     {
  95       gint i;
  96
  97       /* Free the data only if both the input and output streams have
  98        * been closed. */
  99       copy->n_closed++;
 100       if (copy->n_closed < 2)
 101         return;
 102
 103       if (copy->in != NULL)
 104         g_object_unref (copy->in);
 105
 106       if (copy->out != NULL)
 107         g_object_unref (copy->out);
 108
 109       for (i = 0; i < N_BUFFERS; i++)
 110         g_free (copy->buff[i]);
 111
 112       g_object_unref (copy->cancellable);
 113       g_free (copy);
 114     }
 115 }
 116
 117 static void
 118 io_error (CopyData *copy,
 119           GError *error)
 120 {
 121   g_cancellable_cancel (copy->cancellable);
 122
 123   if (error == NULL)
 124     g_warning ("I/O error");
 125   else if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
 126     ; /* Ignore cancellations */
 127   else
 128     g_warning ("I/O error: %d: %s\n", error->code, error->message);
 129
 130   if (copy->in != NULL)
 131     g_input_stream_close (copy->in, NULL, NULL);
 132
 133   if (copy->out != NULL)
 134     g_output_stream_close (copy->out, NULL, NULL);
 135
 136   copy_data_unref (copy);
 137 }
 138
 139 static void
 140 close_done (GObject *source_object,
 141             GAsyncResult *res,
 142             gpointer user_data)
 143 {
 144   CopyData *copy = user_data;
 145
 146   g_object_unref (source_object);
 147   copy_data_unref (copy);
 148 }
 149
 150 static void
 151 write_done_cb (GObject *source_object,
 152                GAsyncResult *res,
 153                gpointer user_data)
 154 {
 155   CopyData *copy = user_data;
 156   gssize count_write;
 157   GError *error = NULL;
 158
 159   count_write = g_output_stream_write_finish (copy->out, res, &error);
 160
 161   if (count_write <= 0)
 162     {
 163       io_error (copy, error);
 164       g_error_free (error);
 165       return;
 166     }
 167
 168   copy->is_full[copy->curr_write] = FALSE;
 169   copy->curr_write = (copy->curr_write + 1) % N_BUFFERS;
 170   copy->is_writing = FALSE;
 171
 172   schedule_next (copy);
 173 }
 174
 175 static void
 176 read_done_cb (GObject *source_object,
 177               GAsyncResult *res,
 178               gpointer user_data)
 179 {
 180   CopyData *copy = user_data;
 181   gssize count_read;
 182   GError *error = NULL;
 183
 184   count_read = g_input_stream_read_finish (copy->in, res, &error);
 185
 186   if (count_read == 0)
 187     {
 188       g_input_stream_close_async (copy->in, 0, copy->cancellable,
 189           close_done, copy);
 190       copy->in = NULL;
 191     }
 192   else if (count_read < 0)
 193     {
 194       io_error (copy, error);
 195       g_error_free (error);
 196       return;
 197     }
 198
 199   copy->count[copy->curr_read] = count_read;
 200   copy->is_full[copy->curr_read] = TRUE;
 201   copy->curr_read = (copy->curr_read + 1) % N_BUFFERS;
 202   copy->is_reading = FALSE;
 203
 204   schedule_next (copy);
 205 }
 206
 207 static void
 208 schedule_next (CopyData *copy)
 209 {
 210   if (copy->in != NULL &&
 211       !copy->is_reading &&
 212       !copy->is_full[copy->curr_read])
 213     {
 214       /* We are not reading and the current buffer is empty, so
 215        * start an async read. */
 216       copy->is_reading = TRUE;
 217       g_input_stream_read_async (copy->in,
 218           copy->buff[copy->curr_read],
 219           BUFFER_SIZE, 0, copy->cancellable,
 220           read_done_cb, copy);
 221     }
 222
 223   if (!copy->is_writing &&
 224       copy->is_full[copy->curr_write])
 225     {
 226       if (copy->count[copy->curr_write] == 0)
 227         {
 228           /* The last read on the buffer read 0 bytes, this
 229            * means that we got an EOF, so we can close
 230            * the output channel. */
 231           g_output_stream_close_async (copy->out, 0,
 232               copy->cancellable,
 233               close_done, copy);
 234       copy->out = NULL;
 235         }
 236       else
 237         {
 238           /* We are not writing and the current buffer contains
 239            * data, so start an async write. */
 240           copy->is_writing = TRUE;
 241           g_output_stream_write_async (copy->out,
 242               copy->buff[copy->curr_write],
 243               copy->count[copy->curr_write],
 244               0, copy->cancellable,
 245               write_done_cb, copy);
 246         }
 247     }
 248 }
 249
 250 static void
 251 copy_stream (GInputStream *in,
 252              GOutputStream *out,
 253              GCancellable *cancellable)
 254 {
 255   CopyData *copy;
 256   gint i;
 257
 258   g_return_if_fail (in != NULL);
 259   g_return_if_fail (out != NULL);
 260
 261   copy = g_new0 (CopyData, 1);
 262   copy->in = g_object_ref (in);
 263   copy->out = g_object_ref (out);
 264   copy->ref_count = 1;
 265
 266   if (cancellable != NULL)
 267     copy->cancellable = g_object_ref (cancellable);
 268   else
 269     copy->cancellable = g_cancellable_new ();
 270
 271   for (i = 0; i < N_BUFFERS; i++)
 272     copy->buff[i] = g_malloc (BUFFER_SIZE);
 273
 274   schedule_next (copy);
 275 }
 276
 277 /* EmpathyTpFile object */
 278
 279 struct _EmpathyTpFilePriv {
 280   EmpathyContactFactory *factory;
 281   MissionControl *mc;
 282   TpChannel *channel;
 283
 284   EmpathyContact *contact;
 285   GInputStream *in_stream;
 286   GOutputStream *out_stream;
 287
 288   /* org.freedesktop.Telepathy.Channel.Type.FileTransfer D-Bus properties */
 289   TpFileTransferState state;
 290   gchar *content_type;
 291   gchar *filename;
 292   guint64 size;
 293   TpFileHashType content_hash_type;
 294   gchar *content_hash;
 295   gchar *description;
 296   guint64 transferred_bytes;
 297
 298   gboolean incoming;
 299   TpFileTransferStateChangeReason state_change_reason;
 300   time_t start_time;
 301   GValue *socket_address;
 302   GCancellable *cancellable;
 303 };
 304
 305 enum {
 306   PROP_0,
 307   PROP_CHANNEL,
 308   PROP_STATE,
 309   PROP_INCOMING,
 310   PROP_FILENAME,
 311   PROP_SIZE,
 312   PROP_CONTENT_TYPE,
 313   PROP_TRANSFERRED_BYTES,
 314   PROP_CONTENT_HASH_TYPE,
 315   PROP_CONTENT_HASH,
 316 };
 317
 318 G_DEFINE_TYPE (EmpathyTpFile, empathy_tp_file, G_TYPE_OBJECT);
 319
 320 static void
 321 empathy_tp_file_init (EmpathyTpFile *tp_file)
 322 {
 323   EmpathyTpFilePriv *priv;
 324
 325   priv = G_TYPE_INSTANCE_GET_PRIVATE ((tp_file),
 326       EMPATHY_TYPE_TP_FILE, EmpathyTpFilePriv);
 327
 328   tp_file->priv = priv;
 329 }
 330
 331 static void
 332 tp_file_invalidated_cb (TpProxy       *proxy,
 333                         guint          domain,
 334                         gint           code,
 335                         gchar         *message,
 336                         EmpathyTpFile *tp_file)
 337 {
 338   DEBUG ("Channel invalidated: %s", message);
 339
 340   if (tp_file->priv->state != TP_FILE_TRANSFER_STATE_COMPLETED &&
 341       tp_file->priv->state != TP_FILE_TRANSFER_STATE_CANCELLED)
 342     {
 343       /* The channel is not in a finished state, an error occured */
 344       tp_file->priv->state = TP_FILE_TRANSFER_STATE_CANCELLED;
 345       tp_file->priv->state_change_reason =
 346           TP_FILE_TRANSFER_STATE_CHANGE_REASON_LOCAL_ERROR;
 347       g_object_notify (G_OBJECT (tp_file), "state");
 348     }
 349 }
 350
 351 static void
 352 tp_file_finalize (GObject *object)
 353 {
 354   EmpathyTpFile *tp_file = EMPATHY_TP_FILE (object);
 355
 356   if (tp_file->priv->channel)
 357     {
 358       g_signal_handlers_disconnect_by_func (tp_file->priv->channel,
 359           tp_file_invalidated_cb, object);
 360       g_object_unref (tp_file->priv->channel);
 361       tp_file->priv->channel = NULL;
 362     }
 363
 364   if (tp_file->priv->factory)
 365     {
 366       g_object_unref (tp_file->priv->factory);
 367     }
 368   if (tp_file->priv->mc)
 369     {
 370       g_object_unref (tp_file->priv->mc);
 371     }
 372
 373   g_free (tp_file->priv->filename);
 374   if (tp_file->priv->socket_address != NULL)
 375     tp_g_value_slice_free (tp_file->priv->socket_address);
 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   struct sockaddr_un addr;
 400   GArray *array;
 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   array = g_value_get_boxed (tp_file->priv->socket_address);
 411
 412   memset (&addr, 0, sizeof (addr));
 413   addr.sun_family = AF_UNIX;
 414   strncpy (addr.sun_path, array->data, array->len);
 415
 416   if (connect (fd, (struct sockaddr*) &addr, sizeof (addr)) < 0)
 417     {
 418       DEBUG ("Failed to connect socket, closing channel");
 419       empathy_tp_file_cancel (tp_file);
 420       close (fd);
 421       return;
 422     }
 423
 424   DEBUG ("Start the transfer");
 425
 426   tp_file->priv->start_time = empathy_time_get_current ();
 427   tp_file->priv->cancellable = g_cancellable_new ();
 428   if (tp_file->priv->incoming)
 429     {
 430       GInputStream *socket_stream;
 431
 432       socket_stream = g_unix_input_stream_new (fd, TRUE);
 433       copy_stream (socket_stream, tp_file->priv->out_stream,
 434           tp_file->priv->cancellable);
 435       g_object_unref (socket_stream);
 436     }
 437   else
 438     {
 439       GOutputStream *socket_stream;
 440
 441       socket_stream = g_unix_output_stream_new (fd, TRUE);
 442       copy_stream (tp_file->priv->in_stream, socket_stream,
 443           tp_file->priv->cancellable);
 444       g_object_unref (socket_stream);
 445     }
 446 }
 447
 448 static void
 449 tp_file_state_changed_cb (TpChannel *channel,
 450                           guint state,
 451                           guint reason,
 452                           gpointer user_data,
 453                           GObject *weak_object)
 454 {
 455   EmpathyTpFile *tp_file = EMPATHY_TP_FILE (weak_object);
 456
 457   if (state == tp_file->priv->state)
 458     return;
 459
 460   DEBUG ("File transfer state changed:\n"
 461       "\tfilename = %s, old state = %u, state = %u, reason = %u\n"
 462       "\tincoming = %s, in_stream = %s, out_stream = %s",
 463       tp_file->priv->filename, tp_file->priv->state, state, reason,
 464       tp_file->priv->incoming ? "yes" : "no",
 465       tp_file->priv->in_stream ? "present" : "not present",
 466       tp_file->priv->out_stream ? "present" : "not present");
 467
 468   /* If the channel is open AND we have the socket path, we can start the
 469    * transfer. The socket path could be NULL if we are not doing the actual
 470    * data transfer but are just an observer for the channel. */
 471   if (state == TP_FILE_TRANSFER_STATE_OPEN &&
 472       tp_file->priv->socket_address != NULL)
 473     tp_file_start_transfer (tp_file);
 474
 475   tp_file->priv->state = state;
 476   tp_file->priv->state_change_reason = reason;
 477
 478   g_object_notify (G_OBJECT (tp_file), "state");
 479 }
 480
 481 static void
 482 tp_file_transferred_bytes_changed_cb (TpChannel *channel,
 483                                       guint64 count,
 484                                       gpointer user_data,
 485                                       GObject *weak_object)
 486 {
 487   EmpathyTpFile *tp_file = EMPATHY_TP_FILE (weak_object);
 488
 489   if (tp_file->priv->transferred_bytes == count)
 490     return;
 491
 492   tp_file->priv->transferred_bytes = count;
 493   g_object_notify (G_OBJECT (tp_file), "transferred-bytes");
 494 }
 495
 496 static GObject *
 497 tp_file_constructor (GType type,
 498                      guint n_props,
 499                      GObjectConstructParam *props)
 500 {
 501   GObject *file_obj;
 502   EmpathyTpFile *tp_file;
 503   TpHandle handle;
 504   GHashTable *properties;
 505   McAccount *account;
 506   GValue *requested;
 507
 508   file_obj = G_OBJECT_CLASS (empathy_tp_file_parent_class)->constructor (type,
 509       n_props, props);
 510
 511   tp_file = EMPATHY_TP_FILE (file_obj);
 512
 513   tp_file->priv->factory = empathy_contact_factory_dup_singleton ();
 514   tp_file->priv->mc = empathy_mission_control_dup_singleton ();
 515
 516   g_signal_connect (tp_file->priv->channel, "invalidated",
 517     G_CALLBACK (tp_file_invalidated_cb), tp_file);
 518
 519   tp_cli_channel_type_file_transfer_connect_to_file_transfer_state_changed (
 520       tp_file->priv->channel, tp_file_state_changed_cb, NULL, NULL,
 521       G_OBJECT (tp_file), NULL);
 522
 523   tp_cli_channel_type_file_transfer_connect_to_transferred_bytes_changed (
 524       tp_file->priv->channel, tp_file_transferred_bytes_changed_cb,
 525       NULL, NULL, G_OBJECT (tp_file), NULL);
 526
 527   account = empathy_channel_get_account (tp_file->priv->channel);
 528
 529   handle = tp_channel_get_handle (tp_file->priv->channel, NULL);
 530   tp_file->priv->contact = empathy_contact_factory_get_from_handle (
 531       tp_file->priv->factory, account, (guint) handle);
 532
 533   tp_cli_dbus_properties_run_get_all (tp_file->priv->channel,
 534       -1, TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, &properties, NULL, NULL);
 535
 536   tp_cli_dbus_properties_run_get (tp_file->priv->channel,
 537       -1, TP_IFACE_CHANNEL, "Requested", &requested, NULL, NULL);
 538
 539   tp_file->priv->size = g_value_get_uint64 (
 540       g_hash_table_lookup (properties, "Size"));
 541
 542   tp_file->priv->state = g_value_get_uint (
 543       g_hash_table_lookup (properties, "State"));
 544
 545   tp_file->priv->state_change_reason =
 546       TP_FILE_TRANSFER_STATE_CHANGE_REASON_NONE;
 547
 548   tp_file->priv->transferred_bytes = g_value_get_uint64 (
 549       g_hash_table_lookup (properties, "TransferredBytes"));
 550
 551   tp_file->priv->filename = g_value_dup_string (
 552       g_hash_table_lookup (properties, "Filename"));
 553
 554   tp_file->priv->content_hash = g_value_dup_string (
 555       g_hash_table_lookup (properties, "ContentHash"));
 556
 557   tp_file->priv->content_hash_type = g_value_get_uint (
 558       g_hash_table_lookup (properties, "ContentHashType"));
 559
 560   tp_file->priv->content_type = g_value_dup_string (
 561       g_hash_table_lookup (properties, "ContentType"));
 562
 563   tp_file->priv->description = g_value_dup_string (
 564       g_hash_table_lookup (properties, "Description"));
 565
 566   tp_file->priv->incoming = !g_value_get_boolean (requested);
 567
 568   g_hash_table_destroy (properties);
 569   g_object_unref (account);
 570   g_value_unset (requested);
 571
 572   return file_obj;
 573 }
 574
 575 static void
 576 tp_file_get_property (GObject *object,
 577                       guint param_id,
 578                       GValue *value,
 579                       GParamSpec *pspec)
 580 {
 581   EmpathyTpFile *tp_file;
 582
 583   tp_file = EMPATHY_TP_FILE (object);
 584
 585   switch (param_id)
 586     {
 587       case PROP_CHANNEL:
 588         g_value_set_object (value, tp_file->priv->channel);
 589         break;
 590       case PROP_INCOMING:
 591         g_value_set_boolean (value, tp_file->priv->incoming);
 592         break;
 593       case PROP_STATE:
 594         g_value_set_uint (value, tp_file->priv->state);
 595         break;
 596       case PROP_CONTENT_TYPE:
 597         g_value_set_string (value, tp_file->priv->content_type);
 598         break;
 599       case PROP_FILENAME:
 600         g_value_set_string (value, tp_file->priv->filename);
 601         break;
 602       case PROP_SIZE:
 603         g_value_set_uint64 (value, tp_file->priv->size);
 604         break;
 605       case PROP_CONTENT_HASH_TYPE:
 606         g_value_set_uint (value, tp_file->priv->content_hash_type);
 607         break;
 608       case PROP_CONTENT_HASH:
 609         g_value_set_string (value, tp_file->priv->content_hash);
 610         break;
 611       case PROP_TRANSFERRED_BYTES:
 612         g_value_set_uint64 (value, tp_file->priv->transferred_bytes);
 613         break;
 614       default:
 615         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 616         break;
 617     };
 618 }
 619
 620 static void
 621 tp_file_channel_set_dbus_property (gpointer proxy,
 622                                    const gchar *property,
 623                                    const GValue *value)
 624 {
 625         DEBUG ("Setting %s property", property);
 626         tp_cli_dbus_properties_call_set (TP_PROXY (proxy), -1,
 627             TP_IFACE_CHANNEL_TYPE_FILE_TRANSFER, property, value,
 628             NULL, NULL, NULL, NULL);
 629 }
 630
 631 static void
 632 tp_file_set_property (GObject *object,
 633                       guint param_id,
 634                       const GValue *value,
 635                       GParamSpec *pspec)
 636 {
 637   EmpathyTpFile *tp_file = (EmpathyTpFile *) object;
 638   switch (param_id)
 639     {
 640       case PROP_CHANNEL:
 641         tp_file->priv->channel = g_object_ref (g_value_get_object (value));
 642         break;
 643       case PROP_STATE:
 644         tp_file->priv->state = g_value_get_uint (value);
 645         break;
 646       case PROP_INCOMING:
 647         tp_file->priv->incoming = g_value_get_boolean (value);
 648         break;
 649       case PROP_FILENAME:
 650         g_free (tp_file->priv->filename);
 651         tp_file->priv->filename = g_value_dup_string (value);
 652         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 653             "Filename", value);
 654         break;
 655       case PROP_SIZE:
 656         tp_file->priv->size = g_value_get_uint64 (value);
 657         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 658             "Size", value);
 659         break;
 660       case PROP_CONTENT_TYPE:
 661         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 662             "ContentType", value);
 663         g_free (tp_file->priv->content_type);
 664         tp_file->priv->content_type = g_value_dup_string (value);
 665         break;
 666       case PROP_CONTENT_HASH:
 667         tp_file_channel_set_dbus_property (tp_file->priv->channel,
 668             "ContentHash", value);
 669         g_free (tp_file->priv->content_hash);
 670         tp_file->priv->content_hash = g_value_dup_string (value);
 671         break;
 672       default:
 673         G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
 674         break;
 675     };
 676 }
 677
 678 static GHashTable *ft_table = NULL;
 679
 680 static void
 681 tp_file_weak_notify_cb (gpointer channel,
 682                         GObject *tp_file)
 683 {
 684   g_hash_table_remove (ft_table, channel);
 685 }
 686
 687 /**
 688  * empathy_tp_file_new:
 689  * @channel: a Telepathy channel
 690  *
 691  * Creates a new #EmpathyTpFile wrapping @channel, or return a new ref to an
 692  * existing #EmpathyTpFile for that channel.
 693  *
 694  * Returns: a new #EmpathyTpFile
 695  */
 696 EmpathyTpFile *
 697 empathy_tp_file_new (TpChannel *channel)
 698 {
 699   EmpathyTpFile *tp_file;
 700
 701   g_return_val_if_fail (TP_IS_CHANNEL (channel), NULL);
 702
 703   if (ft_table != NULL)
 704     {
 705       tp_file = g_hash_table_lookup (ft_table, channel);
 706       if (tp_file != NULL) {
 707         return g_object_ref (tp_file);
 708       }
 709     }
 710   else
 711     ft_table = g_hash_table_new_full (empathy_proxy_hash,
 712       empathy_proxy_equal, (GDestroyNotify) g_object_unref, NULL);
 713
 714   tp_file = g_object_new (EMPATHY_TYPE_TP_FILE,
 715       "channel", channel,
 716       NULL);
 717
 718   g_hash_table_insert (ft_table, g_object_ref (channel), tp_file);
 719   g_object_weak_ref (G_OBJECT (tp_file), tp_file_weak_notify_cb, channel);
 720
 721   return tp_file;
 722 }
 723
 724 /**
 725  * empathy_tp_file_get_channel
 726  * @tp_file: an #EmpathyTpFile
 727  *
 728  * Returns the Telepathy file transfer channel
 729  *
 730  * Returns: the #TpChannel
 731  */
 732 TpChannel *
 733 empathy_tp_file_get_channel (EmpathyTpFile *tp_file)
 734 {
 735   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 736
 737   return tp_file->priv->channel;
 738 }
 739
 740 static void
 741 tp_file_method_cb (TpChannel *channel,
 742                    const GValue *address,
 743                    const GError *error,
 744                    gpointer user_data,
 745                    GObject *weak_object)
 746 {
 747   EmpathyTpFile *tp_file = (EmpathyTpFile *) weak_object;
 748   GArray *array;
 749
 750   if (error)
 751     {
 752       DEBUG ("Error: %s", error->message);
 753       empathy_tp_file_cancel (tp_file);
 754       return;
 755     }
 756
 757   if (G_VALUE_TYPE (address) == DBUS_TYPE_G_UCHAR_ARRAY)
 758     {
 759       tp_file->priv->socket_address = tp_g_value_slice_dup (address);
 760     }
 761   else if (G_VALUE_TYPE (address) == G_TYPE_STRING)
 762     {
 763       /* Old bugged version of telepathy-salut used to store the address
 764        * as a 's' instead of an 'ay' */
 765       const gchar *path;
 766
 767       path = g_value_get_string (address);
 768       array = g_array_sized_new (TRUE, FALSE, sizeof (gchar), strlen (path));
 769       g_array_insert_vals (array, 0, path, strlen (path));
 770
 771       tp_file->priv->socket_address = tp_g_value_slice_new (
 772           DBUS_TYPE_G_UCHAR_ARRAY);
 773       g_value_set_boxed (tp_file->priv->socket_address, array);
 774
 775       g_array_free (array, TRUE);
 776     }
 777   else
 778     {
 779       DEBUG ("Wrong address type: %s", G_VALUE_TYPE_NAME (address));
 780       empathy_tp_file_cancel (tp_file);
 781       return;
 782     }
 783
 784   array = g_value_get_boxed (tp_file->priv->socket_address);
 785   DEBUG ("Got unix socket path: %s", array->data);
 786
 787   if (tp_file->priv->state == TP_FILE_TRANSFER_STATE_OPEN)
 788     tp_file_start_transfer (tp_file);
 789 }
 790
 791 /**
 792  * empathy_tp_file_accept:
 793  * @tp_file: an #EmpathyTpFile
 794  * @offset: position where to start the transfer
 795  * @gfile: a #GFile where to write transfered data
 796  * @error: a #GError set if there is an error when opening @gfile
 797  *
 798  * Accepts a file transfer that's in the "local pending" state (i.e.
 799  * TP_FILE_TRANSFER_STATE_LOCAL_PENDING).
 800  */
 801 void
 802 empathy_tp_file_accept (EmpathyTpFile *tp_file,
 803                         guint64 offset,
 804                         GFile *gfile,
 805                         GError **error)
 806 {
 807   GValue nothing = { 0 };
 808
 809   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 810   g_return_if_fail (G_IS_FILE (gfile));
 811
 812   tp_file->priv->out_stream = G_OUTPUT_STREAM (g_file_replace (gfile, NULL,
 813         FALSE, 0, NULL, error));
 814   if (error && *error)
 815     return;
 816
 817   g_free (tp_file->priv->filename);
 818   tp_file->priv->filename = g_file_get_basename (gfile);
 819   g_object_notify (G_OBJECT (tp_file), "filename");
 820
 821   DEBUG ("Accepting file: filename=%s", tp_file->priv->filename);
 822
 823   g_value_init (&nothing, G_TYPE_STRING);
 824   g_value_set_static_string (&nothing, "");
 825
 826   tp_cli_channel_type_file_transfer_call_accept_file (tp_file->priv->channel,
 827       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 828       &nothing, offset, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 829 }
 830
 831 /**
 832  * empathy_tp_file_offer:
 833  * @tp_file: an #EmpathyTpFile
 834  * @gfile: a #GFile where to read the data to transfer
 835  * @error: a #GError set if there is an error when opening @gfile
 836  *
 837  * Offers a file transfer that's in the "not offered" state (i.e.
 838  * TP_FILE_TRANSFER_STATE_NOT_OFFERED).
 839  */
 840 void
 841 empathy_tp_file_offer (EmpathyTpFile *tp_file, GFile *gfile, GError **error)
 842 {
 843   GValue nothing = { 0 };
 844
 845   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 846
 847   tp_file->priv->in_stream = G_INPUT_STREAM (g_file_read (gfile, NULL, error));
 848   if (error && *error)
 849         return;
 850
 851   g_value_init (&nothing, G_TYPE_STRING);
 852   g_value_set_static_string (&nothing, "");
 853
 854   tp_cli_channel_type_file_transfer_call_provide_file (tp_file->priv->channel,
 855       -1, TP_SOCKET_ADDRESS_TYPE_UNIX, TP_SOCKET_ACCESS_CONTROL_LOCALHOST,
 856       &nothing, tp_file_method_cb, NULL, NULL, G_OBJECT (tp_file));
 857 }
 858
 859 EmpathyContact *
 860 empathy_tp_file_get_contact (EmpathyTpFile *tp_file)
 861 {
 862   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 863   return tp_file->priv->contact;
 864 }
 865
 866 const gchar *
 867 empathy_tp_file_get_filename (EmpathyTpFile *tp_file)
 868 {
 869   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 870   return tp_file->priv->filename;
 871 }
 872
 873 gboolean
 874 empathy_tp_file_is_incoming (EmpathyTpFile *tp_file)
 875 {
 876   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), FALSE);
 877   return tp_file->priv->incoming;
 878 }
 879
 880 TpFileTransferState
 881 empathy_tp_file_get_state (EmpathyTpFile *tp_file,
 882                            TpFileTransferStateChangeReason *reason)
 883 {
 884   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 885       TP_FILE_TRANSFER_STATE_NONE);
 886
 887   if (reason != NULL)
 888     *reason = tp_file->priv->state_change_reason;
 889
 890   return tp_file->priv->state;
 891 }
 892
 893 guint64
 894 empathy_tp_file_get_size (EmpathyTpFile *tp_file)
 895 {
 896   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file),
 897       EMPATHY_TP_FILE_UNKNOWN_SIZE);
 898   return tp_file->priv->size;
 899 }
 900
 901 guint64
 902 empathy_tp_file_get_transferred_bytes (EmpathyTpFile *tp_file)
 903 {
 904   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), 0);
 905   return tp_file->priv->transferred_bytes;
 906 }
 907
 908 gint
 909 empathy_tp_file_get_remaining_time (EmpathyTpFile *tp_file)
 910 {
 911   time_t curr_time, elapsed_time;
 912   gdouble time_per_byte;
 913   gdouble remaining_time;
 914
 915   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), -1);
 916
 917   if (tp_file->priv->size == EMPATHY_TP_FILE_UNKNOWN_SIZE)
 918     return -1;
 919
 920   if (tp_file->priv->transferred_bytes == tp_file->priv->size)
 921     return 0;
 922
 923   curr_time = empathy_time_get_current ();
 924   elapsed_time = curr_time - tp_file->priv->start_time;
 925   time_per_byte = (gdouble) elapsed_time /
 926       (gdouble) tp_file->priv->transferred_bytes;
 927   remaining_time = time_per_byte * (tp_file->priv->size -
 928       tp_file->priv->transferred_bytes);
 929
 930   return (gint) remaining_time;
 931 }
 932
 933 const gchar *
 934 empathy_tp_file_get_content_type (EmpathyTpFile *tp_file)
 935 {
 936   g_return_val_if_fail (EMPATHY_IS_TP_FILE (tp_file), NULL);
 937   return tp_file->priv->content_type;
 938 }
 939
 940 void
 941 empathy_tp_file_cancel (EmpathyTpFile *tp_file)
 942 {
 943   g_return_if_fail (EMPATHY_IS_TP_FILE (tp_file));
 944
 945   DEBUG ("Closing channel..");
 946   tp_cli_channel_call_close (tp_file->priv->channel, -1,
 947     NULL, NULL, NULL, NULL);
 948
 949   if (tp_file->priv->cancellable != NULL)
 950     g_cancellable_cancel (tp_file->priv->cancellable);
 951 }
 952
 953 void
 954 empathy_tp_file_close (EmpathyTpFile *tp_file)
 955 {
 956   empathy_tp_file_cancel (tp_file);
 957 }
 958
 959 static void
 960 empathy_tp_file_class_init (EmpathyTpFileClass *klass)
 961 {
 962   GObjectClass *object_class = G_OBJECT_CLASS (klass);
 963
 964   object_class->finalize = tp_file_finalize;
 965   object_class->constructor = tp_file_constructor;
 966   object_class->get_property = tp_file_get_property;
 967   object_class->set_property = tp_file_set_property;
 968
 969   /* Construct-only properties */
 970   g_object_class_install_property (object_class,
 971       PROP_CHANNEL,
 972       g_param_spec_object ("channel",
 973           "telepathy channel",
 974           "The file transfer channel",
 975           TP_TYPE_CHANNEL,
 976           G_PARAM_READWRITE |
 977           G_PARAM_CONSTRUCT_ONLY));
 978
 979   g_object_class_install_property (object_class,
 980       PROP_STATE,
 981       g_param_spec_uint ("state",
 982           "state of the transfer",
 983           "The file transfer state",
 984           0,
 985           G_MAXUINT,
 986           G_MAXUINT,
 987           G_PARAM_READWRITE |
 988           G_PARAM_CONSTRUCT));
 989
 990   g_object_class_install_property (object_class,
 991       PROP_INCOMING,
 992       g_param_spec_boolean ("incoming",
 993           "incoming",
 994           "Whether the transfer is incoming",
 995           FALSE,
 996           G_PARAM_READWRITE |
 997           G_PARAM_CONSTRUCT));
 998
 999   g_object_class_install_property (object_class,
1000       PROP_FILENAME,
1001       g_param_spec_string ("filename",
1002           "name of the transfer",
1003           "The file transfer filename",
1004           "",
1005           G_PARAM_READWRITE));
1006
1007   g_object_class_install_property (object_class,
1008       PROP_SIZE,
1009       g_param_spec_uint64 ("size",
1010           "size of the file",
1011           "The file transfer size",
1012           0,
1013           G_MAXUINT64,
1014           G_MAXUINT64,
1015           G_PARAM_READWRITE));
1016
1017   g_object_class_install_property (object_class,
1018       PROP_CONTENT_TYPE,
1019       g_param_spec_string ("content-type",
1020           "file transfer content-type",
1021           "The file transfer content-type",
1022           "",
1023           G_PARAM_READWRITE));
1024
1025   g_object_class_install_property (object_class,
1026       PROP_CONTENT_HASH_TYPE,
1027       g_param_spec_uint ("content-hash-type",
1028           "file transfer hash type",
1029           "The type of the file transfer hash",
1030           0,
1031           G_MAXUINT,
1032           0,
1033           G_PARAM_READWRITE));
1034
1035   g_object_class_install_property (object_class,
1036       PROP_CONTENT_HASH,
1037       g_param_spec_string ("content-hash",
1038           "file transfer hash",
1039           "The hash of the transfer's contents",
1040           "",
1041           G_PARAM_READWRITE));
1042
1043   g_object_class_install_property (object_class,
1044       PROP_TRANSFERRED_BYTES,
1045       g_param_spec_uint64 ("transferred-bytes",
1046           "bytes transferred",
1047           "The number of bytes transferred",
1048           0,
1049           G_MAXUINT64,
1050           0,
1051           G_PARAM_READWRITE));
1052
1053   g_type_class_add_private (object_class, sizeof (EmpathyTpFilePriv));
1054 }
1055