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/*
This file is part of GNUnet.
Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 GNUnet e.V.
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file fs/gnunet-unindex.c
* @brief unindex files published on GNUnet
* @author Christian Grothoff
* @author Krista Bennett
* @author James Blackwell
* @author Igor Wronsky
*/
#include "platform.h"
#include "gnunet_fs_service.h"
static int ret;
static unsigned int verbose;
static const struct GNUNET_CONFIGURATION_Handle *cfg;
static struct GNUNET_FS_Handle *ctx;
static struct GNUNET_FS_UnindexContext *uc;
static void
cleanup_task (void *cls)
{
GNUNET_FS_stop (ctx);
ctx = NULL;
}
static void
shutdown_task (void *cls)
{
struct GNUNET_FS_UnindexContext *u;
if (uc != NULL)
{
u = uc;
uc = NULL;
GNUNET_FS_unindex_stop (u);
}
}
/**
* Called by FS client to give information about the progress of an
* operation.
*
* @param cls closure
* @param info details about the event, specifying the event type
* and various bits about the event
* @return client-context (for the next progress call
* for this operation; should be set to NULL for
* SUSPEND and STOPPED events). The value returned
* will be passed to future callbacks in the respective
* field in the GNUNET_FS_ProgressInfo struct.
*/
static void *
progress_cb (void *cls, const struct GNUNET_FS_ProgressInfo *info)
{
const char *s;
switch (info->status)
{
case GNUNET_FS_STATUS_UNINDEX_START:
break;
case GNUNET_FS_STATUS_UNINDEX_PROGRESS:
if (verbose)
{
s = GNUNET_STRINGS_relative_time_to_string (info->value.unindex.eta, GNUNET_YES);
FPRINTF (stdout, _("Unindexing at %llu/%llu (%s remaining)\n"),
(unsigned long long) info->value.unindex.completed,
(unsigned long long) info->value.unindex.size, s);
}
break;
case GNUNET_FS_STATUS_UNINDEX_ERROR:
FPRINTF (stderr, _("Error unindexing: %s.\n"),
info->value.unindex.specifics.error.message);
GNUNET_SCHEDULER_shutdown ();
break;
case GNUNET_FS_STATUS_UNINDEX_COMPLETED:
FPRINTF (stdout, "%s", _("Unindexing done.\n"));
GNUNET_SCHEDULER_shutdown ();
break;
case GNUNET_FS_STATUS_UNINDEX_STOPPED:
GNUNET_SCHEDULER_add_now (&cleanup_task, NULL);
break;
default:
FPRINTF (stderr, _("Unexpected status: %d\n"), info->status);
break;
}
return NULL;
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param c configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
/* check arguments */
if ((args[0] == NULL) || (args[1] != NULL))
{
printf (_("You must specify one and only one filename for unindexing.\n"));
ret = -1;
return;
}
cfg = c;
ctx =
GNUNET_FS_start (cfg, "gnunet-unindex", &progress_cb, NULL,
GNUNET_FS_FLAGS_NONE, GNUNET_FS_OPTIONS_END);
if (NULL == ctx)
{
FPRINTF (stderr, _("Could not initialize `%s' subsystem.\n"), "FS");
ret = 1;
return;
}
uc = GNUNET_FS_unindex_start (ctx, args[0], NULL);
if (NULL == uc)
{
FPRINTF (stderr, "%s", _("Could not start unindex operation.\n"));
GNUNET_FS_stop (ctx);
return;
}
GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
NULL);
}
/**
* The main function to unindex content.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_option_verbose (&verbose),
GNUNET_GETOPT_OPTION_END
};
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
ret = (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-unindex [OPTIONS] FILENAME",
gettext_noop
("Unindex a file that was previously indexed with gnunet-publish."),
options, &run, NULL)) ? ret : 1;
GNUNET_free ((void*) argv);
return ret;
}
/* end of gnunet-unindex.c */
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