Beispiel #1
0
/**
 * hwp_hwp3_parser_parse:
 * @parser: a #HwpHWP3Parser
 * @file: a #HwpHWP3File
 * @error: a #GError
 *
 * Since: 0.0.1
 */
void hwp_hwp3_parser_parse (HwpHWP3Parser *parser,
                            HwpHWP3File   *file,
                            GError       **error)
{
  g_return_if_fail (HWP_IS_HWP3_FILE (file));

  parser->stream = file->priv->stream;

  _hwp_hwp3_parser_parse_signature (parser, file, error);
  _hwp_hwp3_parser_parse_doc_info (parser, file, error);
  _hwp_hwp3_parser_parse_summary_info (parser, file, error);
  _hwp_hwp3_parser_parse_info_block (parser, file, error);

  if (file->is_compress) {
    GZlibDecompressor *zd;
    GInputStream      *cis;

    zd  = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_RAW);
    cis = g_converter_input_stream_new (file->priv->stream, G_CONVERTER (zd));
    g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (cis),
                                                 TRUE);
    g_object_unref (file->priv->stream);
    file->priv->stream = g_object_ref (cis);
    g_object_unref (zd);
  }

  parser->stream = file->priv->stream;

  _hwp_hwp3_parser_parse_font_names (parser, file, error);
  _hwp_hwp3_parser_parse_styles (parser, file, error);
  _hwp_hwp3_parser_parse_paragraphs (parser, file, error);
  _hwp_hwp3_parser_parse_supplementary_info_block1 (parser, file, error);
  _hwp_hwp3_parser_parse_supplementary_info_block2 (parser, file, error);
}
static void
g_filter_input_stream_get_property (GObject    *object,
                                    guint       prop_id,
                                    GValue     *value,
                                    GParamSpec *pspec)
{
  GFilterInputStream *filter_stream;

  filter_stream = G_FILTER_INPUT_STREAM (object);

  switch (prop_id)
    {
    case PROP_BASE_STREAM:
      g_value_set_object (value, filter_stream->base_stream);
      break;

    case PROP_CLOSE_BASE:
      g_value_set_boolean (value, GET_PRIVATE (filter_stream)->close_base);
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }

}
static gssize
read_internal (GInputStream  *stream,
	       void          *buffer,
	       gsize          count,
	       gboolean       blocking,
	       GCancellable  *cancellable,
	       GError       **error)
{
	SoupCacheInputStream *istream = SOUP_CACHE_INPUT_STREAM (stream);
	SoupCacheInputStreamPrivate *priv = istream->priv;
	GInputStream *base_stream;
	gssize nread;

	base_stream = g_filter_input_stream_get_base_stream (G_FILTER_INPUT_STREAM (stream));
	nread = g_pollable_stream_read (base_stream, buffer, count, blocking,
					cancellable, error);

	if (G_UNLIKELY (nread == -1 || priv->read_finished))
		return nread;

	if (nread == 0) {
		priv->read_finished = TRUE;

		if (priv->current_writing_buffer == NULL && priv->output_stream)
			notify_and_clear (istream, NULL);
	} else {
		SoupBuffer *soup_buffer = soup_buffer_new (SOUP_MEMORY_COPY, buffer, nread);
		g_queue_push_tail (priv->buffer_queue, soup_buffer);

		if (priv->current_writing_buffer == NULL && priv->output_stream)
			soup_cache_input_stream_write_next_buffer (istream);
	}

	return nread;
}
Beispiel #4
0
static gboolean
is_network_stream (GInputStream *stream)
{
	while (G_IS_FILTER_INPUT_STREAM (stream))
		stream = G_FILTER_INPUT_STREAM (stream)->base_stream;

	return !G_IS_FILE_INPUT_STREAM (stream);
}
static gboolean
soup_content_sniffer_stream_can_poll (GPollableInputStream *pollable)
{
	GInputStream *base_stream = G_FILTER_INPUT_STREAM (pollable)->base_stream;

	return G_IS_POLLABLE_INPUT_STREAM (base_stream) &&
		g_pollable_input_stream_can_poll (G_POLLABLE_INPUT_STREAM (base_stream));
}
gssize   skip         (GInputStream        *stream,
                       gsize                count,
                       GCancellable        *cancellable,
                       GError             **error)
{
  GFilterInputStream *filter_stream = G_FILTER_INPUT_STREAM (stream);
  GInputStream *base_stream = filter_stream->base_stream;

  return g_input_stream_skip (base_stream, count, cancellable, error);
}
static void
g_filter_input_stream_finalize (GObject *object)
{
  GFilterInputStream *stream;

  stream = G_FILTER_INPUT_STREAM (object);

  g_object_unref (stream->base_stream);

  G_OBJECT_CLASS (g_filter_input_stream_parent_class)->finalize (object);
}
static gboolean
soup_content_sniffer_stream_is_readable (GPollableInputStream *stream)
{
	SoupContentSnifferStream *sniffer = SOUP_CONTENT_SNIFFER_STREAM (stream);

	if (sniffer->priv->error ||
	    (!sniffer->priv->sniffing && sniffer->priv->buffer))
		return TRUE;

	return g_pollable_input_stream_is_readable (G_POLLABLE_INPUT_STREAM (G_FILTER_INPUT_STREAM (stream)->base_stream));
}
Beispiel #9
0
static void
create_input_stream (GVfsFtpConnection *conn)
{
  if (conn->commands_in)
    {
      g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (conn->commands_in), FALSE);
      g_object_unref (conn->commands_in);
    }

  conn->commands_in = G_DATA_INPUT_STREAM (g_data_input_stream_new (g_io_stream_get_input_stream (conn->commands)));
  g_data_input_stream_set_newline_type (conn->commands_in, G_DATA_STREAM_NEWLINE_TYPE_CR_LF);
}
const gchar *
checkcopy_input_stream_get_checksum (CheckcopyInputStream * stream, CheckcopyChecksumType type)
{
  CheckcopyInputStreamPrivate *priv = GET_PRIVATE (stream);
  GFilterInputStream *filter = G_FILTER_INPUT_STREAM (stream);
  GInputStream *base = filter->base_stream;

  const gchar *checksum;

  if (g_input_stream_is_closed (base)) {
    checksum = checksum_get_string (type, priv->checksum[type]);
  } else {
    checksum = NULL;
  }

  return checksum;
}
Beispiel #11
0
static gboolean
g_filter_input_stream_close_finish (GInputStream  *stream,
                                    GAsyncResult  *result,
                                    GError       **error)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;
  gboolean res;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  res = g_input_stream_close_finish (stream,
                                     result,
                                     error);

  return res;
}
Beispiel #12
0
static gboolean
g_filter_input_stream_close (GInputStream  *stream,
                             GCancellable  *cancellable,
                             GError       **error)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;
  gboolean            res;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  res = g_input_stream_close (base_stream,
                              cancellable,
                              error);

  return res;
}
Beispiel #13
0
static gssize
g_filter_input_stream_skip_finish (GInputStream  *stream,
                                   GAsyncResult  *result,
                                   GError       **error)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;
  gssize nskipped;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  nskipped = g_input_stream_skip_finish (base_stream,
                                         result,
                                         error);

  return nskipped;
}
static gssize
read_and_sniff (GInputStream *stream, gboolean blocking,
		GCancellable *cancellable, GError **error)
{
	SoupContentSnifferStreamPrivate *priv = SOUP_CONTENT_SNIFFER_STREAM (stream)->priv;
	gssize nread;
	GError *my_error = NULL;
	SoupBuffer *buf;

	do {
		nread = g_pollable_stream_read (G_FILTER_INPUT_STREAM (stream)->base_stream,
						priv->buffer + priv->buffer_nread,
						priv->buffer_size - priv->buffer_nread,
						blocking, cancellable, &my_error);
		if (nread <= 0)
			break;
		priv->buffer_nread += nread;
	} while (priv->buffer_nread < priv->buffer_size);

	/* If we got EAGAIN or cancellation before filling the buffer,
	 * just return that right away. Likewise if we got any other
	 * error without ever reading any data. Otherwise, save the
	 * error to return after we're done sniffing.
	 */
	if (my_error) {
		if (g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK) ||
		    g_error_matches (my_error, G_IO_ERROR, G_IO_ERROR_CANCELLED) ||
		    priv->buffer_nread == 0) {
			g_propagate_error (error, my_error);
			return -1;
		} else
			priv->error = my_error;
	}

	/* Sniff, then return the data */
	buf = soup_buffer_new (SOUP_MEMORY_TEMPORARY, priv->buffer, priv->buffer_nread);
	priv->sniffed_type =
		soup_content_sniffer_sniff (priv->sniffer, priv->msg, buf,
					    &priv->sniffed_params);
	soup_buffer_free (buf);
	priv->sniffing = FALSE;

	return priv->buffer_nread;
}	
static gssize
read_internal (GInputStream  *stream,
	       void          *buffer,
	       gsize          count,
	       gboolean       blocking,
	       GCancellable  *cancellable,
	       GError       **error)
{
	SoupContentSnifferStream *sniffer = SOUP_CONTENT_SNIFFER_STREAM (stream);
	gssize nread;

	if (sniffer->priv->error) {
		g_propagate_error (error, sniffer->priv->error);
		sniffer->priv->error = NULL;
		return -1;
	}

	if (sniffer->priv->sniffing) {
		nread = read_and_sniff (stream, blocking, cancellable, error);
		if (nread <= 0)
			return nread;
	}

	if (sniffer->priv->buffer) {
		nread = MIN (count, sniffer->priv->buffer_nread);
		memcpy (buffer, sniffer->priv->buffer, nread);
		if (nread == sniffer->priv->buffer_nread) {
			g_free (sniffer->priv->buffer);
			sniffer->priv->buffer = NULL;
		} else {
			/* FIXME, inefficient */
			memmove (sniffer->priv->buffer,
				 sniffer->priv->buffer + nread,
				 sniffer->priv->buffer_nread - nread);
			sniffer->priv->buffer_nread -= nread;
		}
	} else {
		nread = g_pollable_stream_read (G_FILTER_INPUT_STREAM (stream)->base_stream,
						buffer, count, blocking,
						cancellable, error);
	}
	return nread;
}
static gssize
g_filter_input_stream_skip (GInputStream  *stream,
                            gsize          count,
                            GCancellable  *cancellable,
                            GError       **error)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;
  gssize              nskipped;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  nskipped = g_input_stream_skip (base_stream,
                                  count,
                                  cancellable,
                                  error);
  return nskipped;
}
Beispiel #17
0
static void
g_filter_input_stream_close_async (GInputStream        *stream,
                                   int                  io_priority,
                                   GCancellable        *cancellable,
                                   GAsyncReadyCallback  callback,
                                   gpointer             user_data)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  g_input_stream_close_async (base_stream,
                              io_priority,
                              cancellable,
                              callback,
                              user_data);
}
static GSource *
soup_content_sniffer_stream_create_source (GPollableInputStream *stream,
					   GCancellable         *cancellable)
{
	SoupContentSnifferStream *sniffer = SOUP_CONTENT_SNIFFER_STREAM (stream);
	GSource *base_source, *pollable_source;

	if (sniffer->priv->error ||
	    (!sniffer->priv->sniffing && sniffer->priv->buffer))
		base_source = g_timeout_source_new (0);
	else
		base_source = g_pollable_input_stream_create_source (G_POLLABLE_INPUT_STREAM (G_FILTER_INPUT_STREAM (stream)->base_stream), cancellable);

	g_source_set_dummy_callback (base_source);
	pollable_source = g_pollable_source_new (G_OBJECT (stream));
	g_source_add_child_source (pollable_source, base_source);
	g_source_unref (base_source);

	return pollable_source;
}
gssize   read_fn      (GInputStream        *stream,
                       void                *buffer,
                       gsize                count,
                       GCancellable        *cancellable,
                       GError             **error)
{
  CheckcopyInputStreamPrivate *priv = GET_PRIVATE (CHECKCOPY_INPUT_STREAM (stream));
  GFilterInputStream *filter_stream = G_FILTER_INPUT_STREAM (stream);
  GInputStream *base_stream = filter_stream->base_stream;
  gssize nread;
  int i;

  nread = g_input_stream_read (base_stream, buffer, count, cancellable, error);

  for (i=CHECKCOPY_NO_CHECKSUM+1; i<CHECKCOPY_ALL_CHECKSUMS; i++) {
    checksum_update (i, &(priv->checksum[i]), buffer, nread);
  }

  return nread;
}
static gssize
g_filter_input_stream_read (GInputStream  *stream,
                            void          *buffer,
                            gsize          count,
                            GCancellable  *cancellable,
                            GError       **error)
{
  GFilterInputStream *filter_stream;
  GInputStream       *base_stream;
  gssize              nread;

  filter_stream = G_FILTER_INPUT_STREAM (stream);
  base_stream = filter_stream->base_stream;

  nread = g_input_stream_read (base_stream,
                               buffer,
                               count,
                               cancellable,
                               error);

  return nread;
}
Beispiel #21
0
static void
g_filter_input_stream_set_property (GObject         *object,
                                    guint            prop_id,
                                    const GValue    *value,
                                    GParamSpec      *pspec)
{
  GFilterInputStream *filter_stream;
  GObject *obj;

  filter_stream = G_FILTER_INPUT_STREAM (object);

  switch (prop_id) 
    {
    case PROP_BASE_STREAM:
      obj = g_value_dup_object (value);
      filter_stream->base_stream = G_INPUT_STREAM (obj); 
      break;

    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }

}
static gboolean
sysroot_stdout_ready_cb (GPollableInputStream *pollable_stream,
                         StdoutClosure *closure)
{
  glnx_unref_object RpmostreedSysroot *sysroot = NULL;
  glnx_unref_object RpmostreedTransaction *transaction = NULL;
  GMemoryInputStream *memory_stream;
  GBufferedInputStream *buffered_stream;
  char buffer[1024];
  gconstpointer stream_buffer;
  gsize stream_buffer_size;
  gsize total_bytes_read = 0;
  gboolean have_line = FALSE;
  GError *local_error = NULL;

  sysroot = g_weak_ref_get (&closure->sysroot);
  if (sysroot != NULL)
    transaction = rpmostreed_transaction_monitor_ref_active_transaction (sysroot->transaction_monitor);

  /* XXX Would very much like g_buffered_input_stream_fill_nonblocking().
   *     Much of this function is a clumsy and inefficient attempt to
   *     achieve the same thing.
   *
   *     See: https://bugzilla.gnome.org/726797
   */

  buffered_stream = G_BUFFERED_INPUT_STREAM (closure->data_stream);
  memory_stream = (GMemoryInputStream *) g_filter_input_stream_get_base_stream (G_FILTER_INPUT_STREAM (buffered_stream));

  while (local_error == NULL)
    {
      gssize n_read;

      n_read = g_pollable_input_stream_read_nonblocking (pollable_stream,
                                                         buffer,
                                                         sizeof (buffer),
                                                         NULL, &local_error);

      if (n_read > 0)
        {
          /* XXX Gotta use GBytes so the data gets copied. */
          g_autoptr(GBytes) bytes = g_bytes_new (buffer, n_read);
          g_memory_input_stream_add_bytes (memory_stream, bytes);
          total_bytes_read += n_read;
        }
    }

  if (!g_error_matches (local_error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK))
    goto out;

  g_clear_error (&local_error);

read_another_line:

  /* Fill the buffered stream with the data we just put in the
   * memory stream, then peek at the buffer to see if it's safe
   * to call g_data_input_stream_read_line() without blocking.
   *
   * XXX Oye, there's gotta be an easier way to do this...
   */

  /* This should never fail since it's just reading from memory. */
  g_buffered_input_stream_fill (buffered_stream, total_bytes_read, NULL, NULL);

  stream_buffer = g_buffered_input_stream_peek_buffer (buffered_stream, &stream_buffer_size);
  have_line = (memchr (stream_buffer, '\n', stream_buffer_size) != NULL);

  if (have_line)
    {
      g_autofree char *line = NULL;
      gsize length;

      line = g_data_input_stream_read_line (closure->data_stream,
                                            &length, NULL, &local_error);

      if (local_error != NULL)
        goto out;

      /* If there's an active transaction, forward the line to the
       * transaction's owner through the "Message" signal.  Otherwise
       * dump it to the non-redirected standard output stream. */
      if (transaction != NULL)
        {
          rpmostree_transaction_emit_message (RPMOSTREE_TRANSACTION (transaction), line);
        }
      else
        {
          /* This is essentially puts(), don't care about errors. */
          g_output_stream_write_all (closure->real_stdout,
                                     line, length, NULL, NULL, NULL);
          g_output_stream_write_all (closure->real_stdout,
                                     "\n", 1, NULL, NULL, NULL);
        }

      goto read_another_line;
    }

out:
  if (local_error != NULL)
    {
      g_warning ("Failed to read stdout pipe: %s", local_error->message);
      g_clear_error (&local_error);
    }

  return G_SOURCE_CONTINUE;
}
Beispiel #23
0
gboolean
_g_dbus_auth_run_server (GDBusAuth              *auth,
                         GDBusAuthObserver      *observer,
                         const gchar            *guid,
                         gboolean                allow_anonymous,
                         GDBusCapabilityFlags    offered_capabilities,
                         GDBusCapabilityFlags   *out_negotiated_capabilities,
                         GCredentials          **out_received_credentials,
                         GCancellable           *cancellable,
                         GError                **error)
{
  gboolean ret;
  ServerState state;
  GDataInputStream *dis;
  GDataOutputStream *dos;
  GError *local_error;
  guchar byte;
  gchar *line;
  gsize line_length;
  GDBusAuthMechanism *mech;
  gchar *s;
  GDBusCapabilityFlags negotiated_capabilities;
  GCredentials *credentials;

  debug_print ("SERVER: initiating");

  ret = FALSE;
  dis = NULL;
  dos = NULL;
  mech = NULL;
  negotiated_capabilities = 0;
  credentials = NULL;

  if (!g_dbus_is_guid (guid))
    {
      g_set_error (error,
                   G_IO_ERROR,
                   G_IO_ERROR_FAILED,
                   "The given guid `%s' is not valid",
                   guid);
      goto out;
    }

  dis = G_DATA_INPUT_STREAM (g_data_input_stream_new (g_io_stream_get_input_stream (auth->priv->stream)));
  dos = G_DATA_OUTPUT_STREAM (g_data_output_stream_new (g_io_stream_get_output_stream (auth->priv->stream)));
  g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (dis), FALSE);
  g_filter_output_stream_set_close_base_stream (G_FILTER_OUTPUT_STREAM (dos), FALSE);

  g_data_input_stream_set_newline_type (dis, G_DATA_STREAM_NEWLINE_TYPE_CR_LF);

  /* first read the NUL-byte (TODO: read credentials if using a unix domain socket) */
#ifdef G_OS_UNIX
  if (G_IS_UNIX_CONNECTION (auth->priv->stream) && g_unix_credentials_message_is_supported ())
    {
      local_error = NULL;
      credentials = g_unix_connection_receive_credentials (G_UNIX_CONNECTION (auth->priv->stream),
                                                           cancellable,
                                                           &local_error);
      if (credentials == NULL)
        {
          g_propagate_error (error, local_error);
          goto out;
        }
    }
  else
    {
      local_error = NULL;
      byte = g_data_input_stream_read_byte (dis, cancellable, &local_error);
      if (local_error != NULL)
        {
          g_propagate_error (error, local_error);
          goto out;
        }
    }
#else
  local_error = NULL;
  byte = g_data_input_stream_read_byte (dis, cancellable, &local_error);
  if (local_error != NULL)
    {
      g_propagate_error (error, local_error);
      goto out;
    }
#endif
  if (credentials != NULL)
    {
      if (G_UNLIKELY (_g_dbus_debug_authentication ()))
        {
          s = g_credentials_to_string (credentials);
          debug_print ("SERVER: received credentials `%s'", s);
          g_free (s);
        }
    }
  else
    {
      debug_print ("SERVER: didn't receive any credentials");
    }

  state = SERVER_STATE_WAITING_FOR_AUTH;
  while (TRUE)
    {
      switch (state)
        {
        case SERVER_STATE_WAITING_FOR_AUTH:
          debug_print ("SERVER: WaitingForAuth");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          debug_print ("SERVER: WaitingForAuth, read `%s'", line);
          if (line == NULL)
            goto out;
          if (g_strcmp0 (line, "AUTH") == 0)
            {
              s = get_auth_mechanisms (auth, allow_anonymous, "REJECTED ", "\r\n", " ");
              debug_print ("SERVER: writing `%s'", s);
              if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                {
                  g_free (s);
                  goto out;
                }
              g_free (s);
              g_free (line);
            }
          else if (g_str_has_prefix (line, "AUTH "))
            {
              gchar **tokens;
              const gchar *encoded;
              const gchar *mech_name;
              GType auth_mech_to_use_gtype;

              tokens = g_strsplit (line, " ", 0);
              g_free (line);

              switch (g_strv_length (tokens))
                {
                case 2:
                  /* no initial response */
                  mech_name = tokens[1];
                  encoded = NULL;
                  break;

                case 3:
                  /* initial response */
                  mech_name = tokens[1];
                  encoded = tokens[2];
                  break;

                default:
                  g_set_error (error,
                               G_IO_ERROR,
                               G_IO_ERROR_FAILED,
                               "Unexpected line `%s' while in WaitingForAuth state",
                               line);
                  g_strfreev (tokens);
                  goto out;
                }

              /* TODO: record that the client has attempted to use this mechanism */
              //g_debug ("client is trying `%s'", mech_name);

              auth_mech_to_use_gtype = find_mech_by_name (auth, mech_name);
              if ((auth_mech_to_use_gtype == (GType) 0) ||
                  (!allow_anonymous && g_strcmp0 (mech_name, "ANONYMOUS") == 0))
                {
                  /* We don't support this auth mechanism */
                  g_strfreev (tokens);
                  s = get_auth_mechanisms (auth, allow_anonymous, "REJECTED ", "\r\n", " ");
                  debug_print ("SERVER: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    {
                      g_free (s);
                      goto out;
                    }
                  g_free (s);

                  /* stay in WAITING FOR AUTH */
                  state = SERVER_STATE_WAITING_FOR_AUTH;
                }
              else
                {
                  gchar *initial_response;
                  gsize initial_response_len;

                  mech = g_object_new (auth_mech_to_use_gtype,
                                       "stream", auth->priv->stream,
                                       "credentials", credentials,
                                       NULL);

                  initial_response = NULL;
                  initial_response_len = 0;
                  if (encoded != NULL)
                    {
                      initial_response = hexdecode (encoded, &initial_response_len, error);
                      if (initial_response == NULL)
                        {
                          g_prefix_error (error, "Initial response is malformed: ");
                          /* invalid encoding, disconnect! */
                          g_strfreev (tokens);
                          goto out;
                        }
                    }

                  _g_dbus_auth_mechanism_server_initiate (mech,
                                                          initial_response,
                                                          initial_response_len);
                  g_free (initial_response);
                  g_strfreev (tokens);

                change_state:
                  switch (_g_dbus_auth_mechanism_server_get_state (mech))
                    {
                    case G_DBUS_AUTH_MECHANISM_STATE_ACCEPTED:
                      if (observer != NULL &&
                          !g_dbus_auth_observer_authorize_authenticated_peer (observer,
                                                                              auth->priv->stream,
                                                                              credentials))
                        {
                          /* disconnect */
                          g_set_error_literal (error,
                                               G_IO_ERROR,
                                               G_IO_ERROR_FAILED,
                                               _("Cancelled via GDBusAuthObserver::authorize-authenticated-peer"));
                          goto out;
                        }
                      else
                        {
                          s = g_strdup_printf ("OK %s\r\n", guid);
                          debug_print ("SERVER: writing `%s'", s);
                          if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                            {
                              g_free (s);
                              goto out;
                            }
                          g_free (s);
                          state = SERVER_STATE_WAITING_FOR_BEGIN;
                        }
                      break;

                    case G_DBUS_AUTH_MECHANISM_STATE_REJECTED:
                      s = get_auth_mechanisms (auth, allow_anonymous, "REJECTED ", "\r\n", " ");
                      debug_print ("SERVER: writing `%s'", s);
                      if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                        {
                          g_free (s);
                          goto out;
                        }
                      g_free (s);
                      state = SERVER_STATE_WAITING_FOR_AUTH;
                      break;

                    case G_DBUS_AUTH_MECHANISM_STATE_WAITING_FOR_DATA:
                      state = SERVER_STATE_WAITING_FOR_DATA;
                      break;

                    case G_DBUS_AUTH_MECHANISM_STATE_HAVE_DATA_TO_SEND:
                      {
                        gchar *data;
                        gsize data_len;
                        gchar *encoded_data;
                        data = _g_dbus_auth_mechanism_server_data_send (mech, &data_len);
                        encoded_data = hexencode (data);
                        s = g_strdup_printf ("DATA %s\r\n", encoded_data);
                        g_free (encoded_data);
                        g_free (data);
                        debug_print ("SERVER: writing `%s'", s);
                        if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                          {
                            g_free (s);
                            goto out;
                          }
                        g_free (s);
                      }
                      goto change_state;
                      break;

                    default:
                      /* TODO */
                      g_assert_not_reached ();
                      break;
                    }
                }
            }
          else
            {
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "Unexpected line `%s' while in WaitingForAuth state",
                           line);
              g_free (line);
              goto out;
            }
          break;

        case SERVER_STATE_WAITING_FOR_DATA:
          debug_print ("SERVER: WaitingForData");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          debug_print ("SERVER: WaitingForData, read `%s'", line);
          if (line == NULL)
            goto out;
          if (g_str_has_prefix (line, "DATA "))
            {
              gchar *encoded;
              gchar *decoded_data;
              gsize decoded_data_len;

              encoded = g_strdup (line + 5);
              g_free (line);
              g_strstrip (encoded);
              decoded_data = hexdecode (encoded, &decoded_data_len, error);
              g_free (encoded);
              if (decoded_data == NULL)
                {
                  g_prefix_error (error, "DATA response is malformed: ");
                  /* invalid encoding, disconnect! */
                  goto out;
                }
              _g_dbus_auth_mechanism_server_data_receive (mech, decoded_data, decoded_data_len);
              g_free (decoded_data);
              /* oh man, this goto-crap is so ugly.. really need to rewrite the state machine */
              goto change_state;
            }
          else
            {
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "Unexpected line `%s' while in WaitingForData state",
                           line);
              g_free (line);
            }
          goto out;

        case SERVER_STATE_WAITING_FOR_BEGIN:
          debug_print ("SERVER: WaitingForBegin");
          /* Use extremely slow (but reliable) line reader - this basically
           * does a recvfrom() system call per character
           *
           * (the problem with using GDataInputStream's read_line is that because of
           * buffering it might start reading into the first D-Bus message that
           * appears after "BEGIN\r\n"....)
           */
          line = _my_g_input_stream_read_line_safe (g_io_stream_get_input_stream (auth->priv->stream),
                                                    &line_length,
                                                    cancellable,
                                                    error);
          debug_print ("SERVER: WaitingForBegin, read `%s'", line);
          if (line == NULL)
            goto out;
          if (g_strcmp0 (line, "BEGIN") == 0)
            {
              /* YAY, done! */
              ret = TRUE;
              g_free (line);
              goto out;
            }
          else if (g_strcmp0 (line, "NEGOTIATE_UNIX_FD") == 0)
            {
              g_free (line);
              if (offered_capabilities & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING)
                {
                  negotiated_capabilities |= G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING;
                  s = "AGREE_UNIX_FD\r\n";
                  debug_print ("SERVER: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    goto out;
                }
              else
                {
                  s = "ERROR \"fd passing not offered\"\r\n";
                  debug_print ("SERVER: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    goto out;
                }
            }
          else
            {
              g_debug ("Unexpected line `%s' while in WaitingForBegin state", line);
              g_free (line);
              s = "ERROR \"Unknown Command\"\r\n";
              debug_print ("SERVER: writing `%s'", s);
              if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                goto out;
            }
          break;

        default:
          g_assert_not_reached ();
          break;
        }
    }


  g_set_error_literal (error,
                       G_IO_ERROR,
                       G_IO_ERROR_FAILED,
                       "Not implemented (server)");

 out:
  if (mech != NULL)
    g_object_unref (mech);
  if (dis != NULL)
    g_object_unref (dis);
  if (dos != NULL)
    g_object_unref (dos);

  /* ensure return value is FALSE if error is set */
  if (error != NULL && *error != NULL)
    {
      ret = FALSE;
    }

  if (ret)
    {
      if (out_negotiated_capabilities != NULL)
        *out_negotiated_capabilities = negotiated_capabilities;
      if (out_received_credentials != NULL)
        *out_received_credentials = credentials != NULL ? g_object_ref (credentials) : NULL;
    }

  if (credentials != NULL)
    g_object_unref (credentials);

  debug_print ("SERVER: Done, authenticated=%d", ret);

  return ret;
}
Beispiel #24
0
static void make_stream (HwpHWP5File *file, GError **error)
{
  GsfInput  *input        = NULL;
  GsfInfile *ole          = GSF_INFILE (file->priv->olefile);
  gint       n_root_entry = gsf_infile_num_children (ole);

  if (n_root_entry < 1)
  {
    g_set_error_literal (error,
                         HWP_FILE_ERROR,
                         HWP_FILE_ERROR_INVALID,
                         "invalid hwp file");
    return;
  }

  /* 우선 순위에 따라 스트림을 만든다 */
  input = gsf_infile_child_by_name (ole, "FileHeader");
  if (input && gsf_infile_num_children (GSF_INFILE (input)) == -1)
  {
    file->file_header_stream = input;
    input = NULL;
    parse_file_header (file);
  }
  else
  {
    goto FAIL;
  }

  input = gsf_infile_child_by_name (ole, "DocInfo");
  if (input && gsf_infile_num_children (GSF_INFILE (input)) == -1)
  {
    if (file->is_compress)
    {
      GInputStream      *gis;
      GZlibDecompressor *zd;
      GInputStream      *cis;

      gis = (GInputStream *) gsf_input_stream_new (input);
      zd  = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_RAW);
      cis = g_converter_input_stream_new (gis, (GConverter *)   zd);
      g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (cis), TRUE);
      file->doc_info_stream = cis;

      g_object_unref (zd);
      g_object_unref (gis);

      input = NULL;
    }
    else
    {
      file->doc_info_stream = (GInputStream *) gsf_input_stream_new (input);
    }
  }
  else
  {
    goto FAIL;
  }

  if (!file->is_distribute)
    input = gsf_infile_child_by_name (ole, "BodyText");
  else
    input = gsf_infile_child_by_name (ole, "ViewText");

  if (input)
  {
    for (gint i = 0; i < gsf_infile_num_children (GSF_INFILE (input)); i++)
    {
      GsfInput *section =
                  gsf_infile_child_by_name (GSF_INFILE (input),
                                            g_strdup_printf("Section%d", i));

      if (gsf_infile_num_children (GSF_INFILE (section)) != -1)
      {
        if (GSF_IS_INPUT (section))
          g_object_unref (section);

        g_set_error_literal (error,
                             HWP_FILE_ERROR,
                             HWP_FILE_ERROR_INVALID,
                             "invalid hwp file");
        return;
      }

      if (file->is_distribute)
      {
        guint8 *data = g_malloc0 (256);
        gsf_input_read (section, 4, NULL);
        gsf_input_read (section, 256, data);
        guint32 seed = GSF_LE_GET_GUINT32 (data);
        msvc_srand (seed);
        gint n = 0, val = 0, offset;

        for (guint i = 0; i < 256; i++)
        {
          if (n == 0)
          {
            val = msvc_rand() & 0xff;
            n = (msvc_rand() & 0xf) + 1;
          }

          data[i] ^= val;

          n--;
        }

        offset = 4 + (seed & 0xf);
        gchar *key = g_malloc0 (16);
        memcpy (key, (const gchar *) data + offset, 16);
#ifdef HWP_ENABLE_DEBUG
        gchar *sha1 = g_convert ((const gchar *) data + offset, 80,
                                 "UTF-8", "UTF-16LE", NULL, NULL, error);
        printf ("sha1: %s\n", sha1);
        printf ("key: %s\n", key);
        g_free (sha1);
#endif
        g_free (data);

        EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new ();
        EVP_CIPHER_CTX_init (ctx);
        EVP_DecryptInit_ex (ctx, EVP_aes_128_ecb(), NULL,
                            (unsigned char *) key, NULL);
        g_free (key);
        EVP_CIPHER_CTX_set_padding(ctx, 0); /* no padding */

        gsf_off_t encrypted_data_len = gsf_input_remaining (section);
        guint8 const *encrypted_data = gsf_input_read (section, encrypted_data_len, NULL);

        guint8 *decrypted_data = g_malloc (encrypted_data_len);
        int decrypted_data_len, len;

        EVP_DecryptUpdate (ctx, decrypted_data, &len, encrypted_data, encrypted_data_len);
        decrypted_data_len = len;

        EVP_DecryptFinal_ex (ctx, decrypted_data + len, &len);
        decrypted_data_len += len;

        EVP_CIPHER_CTX_free (ctx);
        g_object_unref (section);

        section = gsf_input_memory_new (decrypted_data, decrypted_data_len, TRUE);
      }

      if (file->is_compress)
      {
        GInputStream      *gis;
        GZlibDecompressor *zd;
        GInputStream      *cis;

        gis = (GInputStream *) gsf_input_stream_new (section);
        zd  = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_RAW);
        cis = g_converter_input_stream_new (gis, (GConverter *) zd);
        g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (cis), TRUE);
        g_ptr_array_add (file->section_streams, cis);
        g_object_unref (zd);
        g_object_unref (gis);
      }
      else
      {
        GInputStream *stream = (GInputStream *) gsf_input_stream_new (section);
        g_ptr_array_add (file->section_streams, stream);
      }
    } /* for */
    g_object_unref (input);
    input = NULL;
  }
  else
  {
    goto FAIL;
  }

  input = gsf_infile_child_by_name (ole, "\005HwpSummaryInformation");
  if (input && gsf_infile_num_children (GSF_INFILE (input)) == -1)
  {
    file->summary_info_stream = input;
    input = NULL;
  }
  else
  {
    goto FAIL;
  }

  input = gsf_infile_child_by_name (ole, "BinData");

  if (input)
  {
    gint n_data = gsf_infile_num_children (GSF_INFILE (input));

    for (gint i = 0; i < n_data; i++)
    {
      GsfInput *bin_data_input =
                  gsf_infile_child_by_index (GSF_INFILE (input), i);

      if (gsf_infile_num_children (GSF_INFILE (bin_data_input)) != -1)
      {
        if (GSF_IS_INPUT (bin_data_input))
          g_object_unref (bin_data_input);

        g_set_error_literal (error,
                             HWP_FILE_ERROR,
                             HWP_FILE_ERROR_INVALID,
                             "invalid hwp file");
        return;
      }

      if (file->is_compress)
      {
        GInputStream      *gis;
        GZlibDecompressor *zd;
        GInputStream      *cis;

        gis = (GInputStream *) gsf_input_stream_new (bin_data_input);
        zd  = g_zlib_decompressor_new (G_ZLIB_COMPRESSOR_FORMAT_RAW);
        cis = g_converter_input_stream_new (gis, (GConverter *) zd);
        g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (cis), TRUE);
        g_ptr_array_add (file->bin_data_streams, cis);
        g_object_unref (zd);
        g_object_unref (gis);
      }
      else
      {
        GInputStream *stream = (GInputStream *) gsf_input_stream_new (bin_data_input);
        g_ptr_array_add (file->bin_data_streams, stream);
      }
    }

    g_object_unref (input);
    input = NULL;
  }

  input = gsf_infile_child_by_name (ole, "PrvText");
  if (input && gsf_infile_num_children (GSF_INFILE (input)) == -1)
  {
    file->prv_text_stream = input;
    input = NULL;
  }
  else
  {
    goto FAIL;
  }

  input = gsf_infile_child_by_name (ole, "PrvImage");
  if (input && gsf_infile_num_children (GSF_INFILE (input)) == -1)
  {
    file->prv_image_stream = input;
    input = NULL;
  }
  else
  {
    goto FAIL;
  }

  return;

  FAIL:

  if (GSF_IS_INPUT (input))
    g_object_unref (input);

  g_set_error_literal (error,
                       HWP_FILE_ERROR,
                       HWP_FILE_ERROR_INVALID,
                       "invalid hwp file");
  return;
}
Beispiel #25
0
gchar *
_g_dbus_auth_run_client (GDBusAuth     *auth,
                         GDBusCapabilityFlags offered_capabilities,
                         GDBusCapabilityFlags *out_negotiated_capabilities,
                         GCancellable  *cancellable,
                         GError       **error)
{
  gchar *s;
  GDataInputStream *dis;
  GDataOutputStream *dos;
  GCredentials *credentials;
  gchar *ret_guid;
  gchar *line;
  gsize line_length;
  gchar **supported_auth_mechs;
  GPtrArray *attempted_auth_mechs;
  GDBusAuthMechanism *mech;
  ClientState state;
  GDBusCapabilityFlags negotiated_capabilities;

  debug_print ("CLIENT: initiating");

  ret_guid = NULL;
  supported_auth_mechs = NULL;
  attempted_auth_mechs = g_ptr_array_new ();
  mech = NULL;
  negotiated_capabilities = 0;
  credentials = NULL;

  dis = G_DATA_INPUT_STREAM (g_data_input_stream_new (g_io_stream_get_input_stream (auth->priv->stream)));
  dos = G_DATA_OUTPUT_STREAM (g_data_output_stream_new (g_io_stream_get_output_stream (auth->priv->stream)));
  g_filter_input_stream_set_close_base_stream (G_FILTER_INPUT_STREAM (dis), FALSE);
  g_filter_output_stream_set_close_base_stream (G_FILTER_OUTPUT_STREAM (dos), FALSE);

  g_data_input_stream_set_newline_type (dis, G_DATA_STREAM_NEWLINE_TYPE_CR_LF);

#ifdef G_OS_UNIX
  if (G_IS_UNIX_CONNECTION (auth->priv->stream) && g_unix_credentials_message_is_supported ())
    {
      credentials = g_credentials_new ();
      if (!g_unix_connection_send_credentials (G_UNIX_CONNECTION (auth->priv->stream),
                                               cancellable,
                                               error))
        goto out;
    }
  else
    {
      if (!g_data_output_stream_put_byte (dos, '\0', cancellable, error))
        goto out;
    }
#else
  if (!g_data_output_stream_put_byte (dos, '\0', cancellable, error))
    goto out;
#endif

  if (credentials != NULL)
    {
      if (G_UNLIKELY (_g_dbus_debug_authentication ()))
        {
          s = g_credentials_to_string (credentials);
          debug_print ("CLIENT: sent credentials `%s'", s);
          g_free (s);
        }
    }
  else
    {
      debug_print ("CLIENT: didn't send any credentials");
    }

  /* TODO: to reduce roundtrips, try to pick an auth mechanism to start with */

  /* Get list of supported authentication mechanisms */
  s = "AUTH\r\n";
  debug_print ("CLIENT: writing `%s'", s);
  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
    goto out;
  state = CLIENT_STATE_WAITING_FOR_REJECT;

  while (TRUE)
    {
      switch (state)
        {
        case CLIENT_STATE_WAITING_FOR_REJECT:
          debug_print ("CLIENT: WaitingForReject");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          if (line == NULL)
            goto out;
          debug_print ("CLIENT: WaitingForReject, read '%s'", line);
        foobar:
          if (!g_str_has_prefix (line, "REJECTED "))
            {
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "In WaitingForReject: Expected `REJECTED am1 am2 ... amN', got `%s'",
                           line);
              g_free (line);
              goto out;
            }
          if (supported_auth_mechs == NULL)
            {
              supported_auth_mechs = g_strsplit (line + sizeof ("REJECTED ") - 1, " ", 0);
#if 0
              for (n = 0; supported_auth_mechs != NULL && supported_auth_mechs[n] != NULL; n++)
                g_printerr ("supported_auth_mechs[%d] = `%s'\n", n, supported_auth_mechs[n]);
#endif
            }
          g_free (line);
          mech = client_choose_mech_and_send_initial_response (auth,
                                                               credentials,
                                                               (const gchar* const *) supported_auth_mechs,
                                                               attempted_auth_mechs,
                                                               dos,
                                                               cancellable,
                                                               error);
          if (mech == NULL)
            goto out;
          if (_g_dbus_auth_mechanism_client_get_state (mech) == G_DBUS_AUTH_MECHANISM_STATE_WAITING_FOR_DATA)
            state = CLIENT_STATE_WAITING_FOR_DATA;
          else
            state = CLIENT_STATE_WAITING_FOR_OK;
          break;

        case CLIENT_STATE_WAITING_FOR_OK:
          debug_print ("CLIENT: WaitingForOK");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          if (line == NULL)
            goto out;
          debug_print ("CLIENT: WaitingForOK, read `%s'", line);
          if (g_str_has_prefix (line, "OK "))
            {
              if (!g_dbus_is_guid (line + 3))
                {
                  g_set_error (error,
                               G_IO_ERROR,
                               G_IO_ERROR_FAILED,
                               "Invalid OK response `%s'",
                               line);
                  g_free (line);
                  goto out;
                }
              ret_guid = g_strdup (line + 3);
              g_free (line);

              if (offered_capabilities & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING)
                {
                  s = "NEGOTIATE_UNIX_FD\r\n";
                  debug_print ("CLIENT: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    goto out;
                  state = CLIENT_STATE_WAITING_FOR_AGREE_UNIX_FD;
                }
              else
                {
                  s = "BEGIN\r\n";
                  debug_print ("CLIENT: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    goto out;
                  /* and we're done! */
                  goto out;
                }
            }
          else if (g_str_has_prefix (line, "REJECTED "))
            {
              goto foobar;
            }
          else
            {
              /* TODO: handle other valid responses */
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "In WaitingForOk: unexpected response `%s'",
                           line);
              g_free (line);
              goto out;
            }
          break;

        case CLIENT_STATE_WAITING_FOR_AGREE_UNIX_FD:
          debug_print ("CLIENT: WaitingForAgreeUnixFD");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          if (line == NULL)
            goto out;
          debug_print ("CLIENT: WaitingForAgreeUnixFD, read=`%s'", line);
          if (g_strcmp0 (line, "AGREE_UNIX_FD") == 0)
            {
              g_free (line);
              negotiated_capabilities |= G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING;
              s = "BEGIN\r\n";
              debug_print ("CLIENT: writing `%s'", s);
              if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                goto out;
              /* and we're done! */
              goto out;
            }
          else if (g_str_has_prefix (line, "ERROR") && (line[5] == 0 || g_ascii_isspace (line[5])))
            {
              //g_strstrip (line + 5); g_debug ("bah, no unix_fd: `%s'", line + 5);
              g_free (line);
              s = "BEGIN\r\n";
              debug_print ("CLIENT: writing `%s'", s);
              if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                goto out;
              /* and we're done! */
              goto out;
            }
          else
            {
              /* TODO: handle other valid responses */
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "In WaitingForAgreeUnixFd: unexpected response `%s'",
                           line);
              g_free (line);
              goto out;
            }
          break;

        case CLIENT_STATE_WAITING_FOR_DATA:
          debug_print ("CLIENT: WaitingForData");
          line = _my_g_data_input_stream_read_line (dis, &line_length, cancellable, error);
          if (line == NULL)
            goto out;
          debug_print ("CLIENT: WaitingForData, read=`%s'", line);
          if (g_str_has_prefix (line, "DATA "))
            {
              gchar *encoded;
              gchar *decoded_data;
              gsize decoded_data_len;

              encoded = g_strdup (line + 5);
              g_free (line);
              g_strstrip (encoded);
              decoded_data = hexdecode (encoded, &decoded_data_len, error);
              g_free (encoded);
              if (decoded_data == NULL)
                {
                  g_prefix_error (error, "DATA response is malformed: ");
                  /* invalid encoding, disconnect! */
                  goto out;
                }
              _g_dbus_auth_mechanism_client_data_receive (mech, decoded_data, decoded_data_len);
              g_free (decoded_data);

              if (_g_dbus_auth_mechanism_client_get_state (mech) == G_DBUS_AUTH_MECHANISM_STATE_HAVE_DATA_TO_SEND)
                {
                  gchar *data;
                  gsize data_len;
                  gchar *encoded_data;
                  data = _g_dbus_auth_mechanism_client_data_send (mech, &data_len);
                  encoded_data = hexencode (data);
                  s = g_strdup_printf ("DATA %s\r\n", encoded_data);
                  g_free (encoded_data);
                  g_free (data);
                  debug_print ("CLIENT: writing `%s'", s);
                  if (!g_data_output_stream_put_string (dos, s, cancellable, error))
                    {
                      g_free (s);
                      goto out;
                    }
                  g_free (s);
                }
              state = CLIENT_STATE_WAITING_FOR_OK;
            }
          else
            {
              g_set_error (error,
                           G_IO_ERROR,
                           G_IO_ERROR_FAILED,
                           "In WaitingForData: unexpected response `%s'",
                           line);
              g_free (line);
              goto out;
            }
          break;

        default:
          g_assert_not_reached ();
          break;
        }

    }; /* main authentication client loop */

 out:
  if (mech != NULL)
    g_object_unref (mech);
  g_ptr_array_unref (attempted_auth_mechs);
  g_strfreev (supported_auth_mechs);
  g_object_unref (dis);
  g_object_unref (dos);

  /* ensure return value is NULL if error is set */
  if (error != NULL && *error != NULL)
    {
      g_free (ret_guid);
      ret_guid = NULL;
    }

  if (ret_guid != NULL)
    {
      if (out_negotiated_capabilities != NULL)
        *out_negotiated_capabilities = negotiated_capabilities;
    }

  if (credentials != NULL)
    g_object_unref (credentials);

  debug_print ("CLIENT: Done, authenticated=%d", ret_guid != NULL);

  return ret_guid;
}