2 This file is part of GNUnet.
3 (C) 2012 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 3, 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.
22 * @brief command line tool to access distributed GNS
23 * @author Christian Grothoff
27 #include <gnunet_util_lib.h>
28 #include <gnunet_dnsparser_lib.h>
29 #include <gnunet_namestore_service.h>
30 #include <gnunet_gns_service.h>
33 * Handle to GNS service.
35 static struct GNUNET_GNS_Handle *gns;
38 * GNS name to shorten. (-s option)
40 static char *shorten_name;
43 * GNS name to lookup. (-u option)
45 static char *lookup_name;
49 * record type to look up (-t option)
51 static char *lookup_type;
54 * name to look up authority for (-a option)
56 static char *auth_name;
63 static enum GNUNET_GNS_RecordType rtype;
65 /* Handle to lookup request */
66 static struct GNUNET_GNS_LookupRequest *lookup_request;
68 /* Handle to shorten request */
69 static struct GNUNET_GNS_ShortenRequest *shorten_request;
71 /* Handle to get authority request */
72 static struct GNUNET_GNS_GetAuthRequest *getauth_request;
75 static GNUNET_SCHEDULER_TaskIdentifier shutdown_task;
78 * Task run on shutdown. Cleans up everything.
81 * @param tc scheduler context
84 do_shutdown (void *cls,
85 const struct GNUNET_SCHEDULER_TaskContext *tc)
87 if (NULL != lookup_request)
88 GNUNET_GNS_cancel_lookup_request (lookup_request);
90 if (NULL != shorten_request)
91 GNUNET_GNS_cancel_shorten_request (shorten_request);
93 if (NULL != getauth_request)
94 GNUNET_GNS_cancel_get_auth_request (getauth_request);
97 GNUNET_GNS_disconnect (gns);
102 process_shorten_result(void* cls, const char* nshort)
104 shorten_request = NULL;
106 printf("%s", nshort);
108 printf("%s shortened to %s\n", (char*) cls, nshort);
109 GNUNET_SCHEDULER_cancel (shutdown_task);
110 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
114 process_lookup_result(void* cls, uint32_t rd_count,
115 const struct GNUNET_NAMESTORE_RecordData *rd)
118 char* name = (char*) cls;
119 const char* typename;
121 lookup_request = NULL;
125 printf("No results.\n");
127 printf("%s:\n", name);
132 for (i=0; i<rd_count; i++)
134 typename = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
135 string_val = GNUNET_NAMESTORE_value_to_string(rd[i].record_type,
139 printf("%s\n", string_val);
141 printf("Got %s record: %s\n", typename, string_val);
144 GNUNET_SCHEDULER_cancel (shutdown_task);
145 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
149 process_auth_result(void* cls, const char* auth)
151 getauth_request = NULL;
152 printf ("%s\n", auth);
153 GNUNET_SCHEDULER_cancel (shutdown_task);
154 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
158 * Main function that will be run.
161 * @param args remaining command-line arguments
162 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
163 * @param cfg configuration
166 run (void *cls, char *const *args, const char *cfgfile,
167 const struct GNUNET_CONFIGURATION_Handle *cfg)
170 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
171 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
172 struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
173 struct GNUNET_CRYPTO_ShortHashCode user_zone;
174 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
175 struct GNUNET_CRYPTO_RsaPrivateKey *shorten_key = NULL;
176 struct GNUNET_CRYPTO_RsaPrivateKey *private_key = NULL;
177 struct GNUNET_CRYPTO_ShortHashCode *private_zone = NULL;
178 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone = NULL;
180 shorten_request = NULL;
181 lookup_request = NULL;
182 getauth_request = NULL;
184 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
185 "ZONEKEY", &keyfile))
188 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
189 "No private key for root zone found, using default!\n");
194 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
196 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
197 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
198 GNUNET_CRYPTO_short_hash(&pkey,
199 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
202 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
204 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
205 "Using zone: %s!\n", &zonename);
206 GNUNET_CRYPTO_rsa_key_free(key);
208 GNUNET_free(keyfile);
211 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
212 "SHORTEN_ZONEKEY", &keyfile))
215 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
216 "No shorten key found!\n");
221 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
223 shorten_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
224 GNUNET_CRYPTO_rsa_key_get_public (shorten_key, &pkey);
225 shorten_zone = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_ShortHashCode));
226 GNUNET_CRYPTO_short_hash(&pkey,
227 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
229 GNUNET_CRYPTO_short_hash_to_enc (shorten_zone, &zonename);
231 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
232 "Using shorten zone: %s!\n", &zonename);
235 GNUNET_free(keyfile);
239 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
240 "PRIVATE_ZONEKEY", &keyfile))
243 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
244 "No private zone key file name specified in configuration!\n");
249 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
251 private_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
252 GNUNET_CRYPTO_rsa_key_get_public (private_key, &pkey);
253 private_zone = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_ShortHashCode));
254 GNUNET_CRYPTO_short_hash(&pkey,
255 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
257 GNUNET_CRYPTO_short_hash_to_enc (private_zone, &zonename);
259 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
260 "Using private zone: %s!\n", &zonename);
264 /* FIXME: shouldn't we just create the private key in this case? */
267 _("Key file `%s' for private zone does not exist!\n"),
271 GNUNET_free(keyfile);
272 if (NULL != private_key)
274 GNUNET_CRYPTO_rsa_key_free (private_key);
280 gns = GNUNET_GNS_connect (cfg);
281 if (NULL != lookup_type)
282 rtype = GNUNET_NAMESTORE_typename_to_number (lookup_type);
284 rtype = GNUNET_GNS_RECORD_A;
288 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
289 _("Failed to connect to GNS\n"));
293 if ((NULL != shorten_name) && (NULL != shorten_zone) && (NULL != private_zone))
295 shorten_request = GNUNET_GNS_shorten_zone (gns, shorten_name,
299 &process_shorten_result,
303 if (NULL != lookup_name)
305 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
307 lookup_request = GNUNET_GNS_lookup_zone (gns, lookup_name,
312 &process_lookup_result, lookup_name);
315 if (NULL != auth_name)
317 getauth_request = GNUNET_GNS_get_authority(gns, auth_name,
318 &process_auth_result, auth_name);
321 if (NULL != shorten_key)
322 GNUNET_CRYPTO_rsa_key_free (shorten_key);
324 if (NULL != shorten_zone)
325 GNUNET_free (shorten_zone);
327 if (NULL != private_zone)
328 GNUNET_free (private_zone);
330 if ((NULL == auth_name) &&
331 (NULL == shorten_name) &&
332 (NULL == lookup_name))
335 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
336 "Please specify lookup, shorten or authority operation!\n");
337 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
341 shutdown_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
347 * The main function for gnunet-gns.
349 * @param argc number of arguments from the command line
350 * @param argv command line arguments
351 * @return 0 ok, 1 on error
354 main (int argc, char *const *argv)
356 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
357 {'s', "shorten", NULL,
358 gettext_noop ("try to shorten a given name"), 1,
359 &GNUNET_GETOPT_set_string, &shorten_name},
360 {'u', "lookup", NULL,
361 gettext_noop ("Lookup a record for the given name"), 1,
362 &GNUNET_GETOPT_set_string, &lookup_name},
363 {'a', "authority", NULL,
364 gettext_noop ("Get the authority of a particular name"), 1,
365 &GNUNET_GETOPT_set_string, &auth_name},
367 gettext_noop ("Specify the type of the record to lookup"), 1,
368 &GNUNET_GETOPT_set_string, &lookup_type},
370 gettext_noop ("No unneeded output"), 0,
371 &GNUNET_GETOPT_set_one, &raw},
372 GNUNET_GETOPT_OPTION_END
377 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
380 GNUNET_log_setup ("gnunet-gns", "WARNING", NULL);
383 GNUNET_PROGRAM_run (argc, argv, "gnunet-gns",
384 _("GNUnet GNS access tool"),
386 &run, NULL)) ? 0 : 1;
391 /* end of gnunet-gns.c */