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
29 #include <gnunet_util_lib.h>
30 #include <gnunet_dnsparser_lib.h>
31 #include <gnunet_namestore_service.h>
32 #include <gnunet_gns_service.h>
35 * Handle to GNS service.
37 static struct GNUNET_GNS_Handle *gns;
40 * GNS name to shorten. (-s option)
42 static char *shorten_name;
45 * GNS name to lookup. (-u option)
47 static char *lookup_name;
51 * record type to look up (-t option)
53 static char *lookup_type;
56 * name to look up authority for (-a option)
58 static char *auth_name;
65 static enum GNUNET_GNS_RecordType rtype;
67 /* Handle to lookup request */
68 static struct GNUNET_GNS_LookupRequest *lookup_request;
70 /* Handle to shorten request */
71 static struct GNUNET_GNS_ShortenRequest *shorten_request;
73 /* Handle to get authority request */
74 static struct GNUNET_GNS_GetAuthRequest *getauth_request;
77 static GNUNET_SCHEDULER_TaskIdentifier shutdown_task;
80 * Task run on shutdown. Cleans up everything.
83 * @param tc scheduler context
86 do_shutdown (void *cls,
87 const struct GNUNET_SCHEDULER_TaskContext *tc)
89 if (NULL != lookup_request)
90 GNUNET_GNS_cancel_lookup_request (lookup_request);
92 if (NULL != shorten_request)
93 GNUNET_GNS_cancel_shorten_request (shorten_request);
95 if (NULL != getauth_request)
96 GNUNET_GNS_cancel_get_auth_request (getauth_request);
99 GNUNET_GNS_disconnect (gns);
104 process_shorten_result(void* cls, const char* nshort)
106 shorten_request = NULL;
108 printf("%s", nshort);
110 printf("%s shortened to %s\n", (char*) cls, nshort);
111 GNUNET_SCHEDULER_cancel (shutdown_task);
112 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
116 process_lookup_result(void* cls, uint32_t rd_count,
117 const struct GNUNET_NAMESTORE_RecordData *rd)
120 char* name = (char*) cls;
121 const char* typename;
123 lookup_request = NULL;
127 printf("No results.\n");
129 printf("%s:\n", name);
134 for (i=0; i<rd_count; i++)
136 typename = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
137 string_val = GNUNET_NAMESTORE_value_to_string(rd[i].record_type,
141 printf("%s\n", string_val);
143 printf("Got %s record: %s\n", typename, string_val);
146 GNUNET_SCHEDULER_cancel (shutdown_task);
147 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
151 process_auth_result(void* cls, const char* auth)
153 getauth_request = NULL;
154 printf ("%s\n", auth);
155 GNUNET_SCHEDULER_cancel (shutdown_task);
156 GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
160 * Main function that will be run.
163 * @param args remaining command-line arguments
164 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
165 * @param cfg configuration
168 run (void *cls, char *const *args, const char *cfgfile,
169 const struct GNUNET_CONFIGURATION_Handle *cfg)
172 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
173 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
174 struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
175 struct GNUNET_CRYPTO_ShortHashCode user_zone;
176 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
177 struct GNUNET_CRYPTO_RsaPrivateKey *shorten_key = NULL;
178 struct GNUNET_CRYPTO_RsaPrivateKey *private_key = NULL;
179 struct GNUNET_CRYPTO_ShortHashCode *private_zone = NULL;
180 struct GNUNET_CRYPTO_ShortHashCode *shorten_zone = NULL;
182 shorten_request = NULL;
183 lookup_request = NULL;
184 getauth_request = NULL;
186 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
187 "ZONEKEY", &keyfile))
190 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
191 "No private key for root zone found, using default!\n");
196 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
198 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
199 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
200 GNUNET_CRYPTO_short_hash(&pkey,
201 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
204 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
206 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
207 "Using zone: %s!\n", &zonename);
208 GNUNET_CRYPTO_rsa_key_free(key);
210 GNUNET_free(keyfile);
213 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
214 "SHORTEN_ZONEKEY", &keyfile))
217 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
218 "No shorten key found!\n");
223 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
225 shorten_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
226 GNUNET_CRYPTO_rsa_key_get_public (shorten_key, &pkey);
227 shorten_zone = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_ShortHashCode));
228 GNUNET_CRYPTO_short_hash(&pkey,
229 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
231 GNUNET_CRYPTO_short_hash_to_enc (shorten_zone, &zonename);
233 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
234 "Using shorten zone: %s!\n", &zonename);
237 GNUNET_free(keyfile);
241 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
242 "PRIVATE_ZONEKEY", &keyfile))
245 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
246 "No private zone key file name specified in configuration!\n");
251 if (GNUNET_YES == GNUNET_DISK_file_test (keyfile))
253 private_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
254 GNUNET_CRYPTO_rsa_key_get_public (private_key, &pkey);
255 private_zone = GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_ShortHashCode));
256 GNUNET_CRYPTO_short_hash(&pkey,
257 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
259 GNUNET_CRYPTO_short_hash_to_enc (private_zone, &zonename);
261 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
262 "Using private zone: %s!\n", &zonename);
266 /* FIXME: shouldn't we just create the private key in this case? */
269 _("Key file `%s' for private zone does not exist!\n"),
273 GNUNET_free(keyfile);
274 if (NULL != private_key)
276 GNUNET_CRYPTO_rsa_key_free (private_key);
282 gns = GNUNET_GNS_connect (cfg);
283 if (NULL != lookup_type)
284 rtype = GNUNET_NAMESTORE_typename_to_number (lookup_type);
286 rtype = GNUNET_GNS_RECORD_A;
290 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
291 _("Failed to connect to GNS\n"));
295 if (NULL != shorten_name)
297 shorten_request = GNUNET_GNS_shorten_zone (gns, shorten_name,
301 &process_shorten_result,
305 if (NULL != lookup_name)
307 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
309 lookup_request = GNUNET_GNS_lookup_zone (gns, lookup_name,
314 &process_lookup_result, lookup_name);
317 if (NULL != auth_name)
319 getauth_request = GNUNET_GNS_get_authority(gns, auth_name,
320 &process_auth_result, auth_name);
323 if (NULL != shorten_key)
324 GNUNET_CRYPTO_rsa_key_free (shorten_key);
326 if (NULL != shorten_zone)
327 GNUNET_free (shorten_zone);
329 if (NULL != private_zone)
330 GNUNET_free (private_zone);
332 shutdown_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
338 * The main function for gnunet-gns.
340 * @param argc number of arguments from the command line
341 * @param argv command line arguments
342 * @return 0 ok, 1 on error
345 main (int argc, char *const *argv)
347 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
348 {'s', "shorten", NULL,
349 gettext_noop ("try to shorten a given GNS name"), 1,
350 &GNUNET_GETOPT_set_string, &shorten_name},
351 {'u', "lookup", NULL,
352 gettext_noop ("Lookup a record using GNS (NOT IMPLEMENTED)"), 1,
353 &GNUNET_GETOPT_set_string, &lookup_name},
354 {'a', "authority", NULL,
355 gettext_noop ("Get the authority of a particular name"), 1,
356 &GNUNET_GETOPT_set_string, &auth_name},
358 gettext_noop ("Specify the type of the record lookup"), 1,
359 &GNUNET_GETOPT_set_string, &lookup_type},
361 gettext_noop ("No unneeded output"), 0,
362 &GNUNET_GETOPT_set_one, &raw},
363 GNUNET_GETOPT_OPTION_END
368 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
371 GNUNET_log_setup ("gnunet-gns", "WARNING", NULL);
374 GNUNET_PROGRAM_run (argc, argv, "gnunet-gns",
375 _("GNUnet GNS access tool"),
377 &run, NULL)) ? 0 : 1;
382 /* end of gnunet-gns.c */