2 This file is part of GNUnet.
3 (C) 2001, 2002, 2004, 2005, 2006, 2007, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file fs/gnunet-search.c
22 * @brief searching for files on GNUnet
23 * @author Christian Grothoff
24 * @author Krista Bennett
25 * @author James Blackwell
26 * @author Igor Wronsky
29 #include "gnunet_fs_service.h"
33 static const struct GNUNET_CONFIGURATION_Handle *cfg;
35 static struct GNUNET_SCHEDULER_Handle *sched;
37 static struct GNUNET_FS_Handle *ctx;
39 static struct GNUNET_FS_SearchContext *sc;
41 static char *output_filename;
43 static struct GNUNET_FS_DirectoryBuilder *db;
45 static unsigned int anonymity = 1;
50 item_printer (void *cls,
51 const char *plugin_name,
52 enum EXTRACTOR_MetaType type,
53 enum EXTRACTOR_MetaFormat format,
54 const char *data_mime_type,
58 if ( (format != EXTRACTOR_METAFORMAT_UTF8) &&
59 (format != EXTRACTOR_METAFORMAT_C_STRING) )
61 printf ("\t%20s: %s\n",
62 dgettext (LIBEXTRACTOR_GETTEXT_DOMAIN,
63 EXTRACTOR_metatype_to_string (type)),
70 clean_task (void *cls,
71 const struct GNUNET_SCHEDULER_TaskContext *tc)
78 if (output_filename == NULL)
81 GNUNET_FS_directory_builder_finish (db,
86 GNUNET_free (output_filename);
90 GNUNET_DISK_fn_write (output_filename,
93 GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE))
96 _("Failed to write directory with search results to `%s'\n"),
99 GNUNET_free_non_null (ddata);
100 GNUNET_free (output_filename);
105 * Called by FS client to give information about the progress of an
109 * @param info details about the event, specifying the event type
110 * and various bits about the event
111 * @return client-context (for the next progress call
112 * for this operation; should be set to NULL for
113 * SUSPEND and STOPPED events). The value returned
114 * will be passed to future callbacks in the respective
115 * field in the GNUNET_FS_ProgressInfo struct.
118 progress_cb (void *cls,
119 const struct GNUNET_FS_ProgressInfo *info)
125 switch (info->status)
127 case GNUNET_FS_STATUS_SEARCH_START:
129 case GNUNET_FS_STATUS_SEARCH_RESULT:
131 GNUNET_FS_directory_builder_add (db,
132 info->value.search.specifics.result.uri,
133 info->value.search.specifics.result.meta,
135 uri = GNUNET_FS_uri_to_string (info->value.search.specifics.result.uri);
136 printf ("%s:\n", uri);
138 GNUNET_CONTAINER_meta_data_get_by_type (info->value.search.specifics.result.meta,
139 EXTRACTOR_METATYPE_FILENAME);
140 if (filename != NULL)
142 while (NULL != (dotdot = strstr (filename, "..")))
143 dotdot[0] = dotdot[1] = '_';
144 printf ("gnunet-download -o \"%s\" %s\n",
149 printf ("gnunet-download %s\n", uri);
151 GNUNET_CONTAINER_meta_data_iterate (info->value.search.specifics.result.meta,
156 GNUNET_free_non_null (filename);
159 case GNUNET_FS_STATUS_SEARCH_UPDATE:
161 case GNUNET_FS_STATUS_SEARCH_RESULT_STOPPED:
164 case GNUNET_FS_STATUS_SEARCH_ERROR:
166 _("Error searching: %s.\n"),
167 info->value.search.specifics.error.message);
168 GNUNET_SCHEDULER_shutdown (sched);
170 case GNUNET_FS_STATUS_SEARCH_STOPPED:
171 GNUNET_SCHEDULER_add_continuation (sched,
174 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
178 _("Unexpected status: %d\n"),
187 shutdown_task (void *cls,
188 const struct GNUNET_SCHEDULER_TaskContext *tc)
192 GNUNET_FS_search_stop (sc);
199 * Main function that will be run by the scheduler.
202 * @param s the scheduler to use
203 * @param args remaining command-line arguments
204 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
205 * @param c configuration
209 struct GNUNET_SCHEDULER_Handle *s,
212 const struct GNUNET_CONFIGURATION_Handle *c)
214 struct GNUNET_FS_Uri *uri;
219 while (NULL != args[argc])
221 uri = GNUNET_FS_uri_ksk_create_from_args (argc,
222 (const char **) args);
226 _("Could not create keyword URI from arguments.\n"));
228 GNUNET_FS_uri_destroy (uri);
232 ctx = GNUNET_FS_start (sched,
237 GNUNET_FS_FLAGS_NONE,
238 GNUNET_FS_OPTIONS_END);
242 _("Could not initialize `%s' subsystem.\n"),
244 GNUNET_FS_uri_destroy (uri);
245 GNUNET_FS_stop (ctx);
249 if (output_filename != NULL)
250 db = GNUNET_FS_directory_builder_create (NULL);
251 sc = GNUNET_FS_search_start (ctx,
255 GNUNET_FS_uri_destroy (uri);
259 _("Could not start searching.\n"));
260 GNUNET_FS_stop (ctx);
264 GNUNET_SCHEDULER_add_delayed (sched,
265 GNUNET_TIME_UNIT_FOREVER_REL,
272 * gnunet-search command line options
274 static struct GNUNET_GETOPT_CommandLineOption options[] = {
275 {'a', "anonymity", "LEVEL",
276 gettext_noop ("set the desired LEVEL of receiver-anonymity"),
277 1, &GNUNET_GETOPT_set_uint, &anonymity},
278 {'o', "output", "PREFIX",
280 ("write search results to file starting with PREFIX"),
281 1, &GNUNET_GETOPT_set_string, &output_filename},
282 GNUNET_GETOPT_OPTION_END
287 * The main function to search GNUnet.
289 * @param argc number of arguments from the command line
290 * @param argv command line arguments
291 * @return 0 ok, 1 on error
294 main (int argc, char *const *argv)
297 GNUNET_PROGRAM_run (argc,
302 options, &run, NULL)) ? ret : 1;
305 /* end of gnunet-search.c */