Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2014-2025 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it under the
6 : terms of the GNU General Public License as published by the Free Software
7 : Foundation; either version 3, or (at your option) any later version.
8 :
9 : TALER is distributed in the hope that it will be useful, but WITHOUT ANY
10 : WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
11 : A PARTICULAR PURPOSE. See the GNU General Public License for more details.
12 :
13 : You should have received a copy of the GNU General Public License along with
14 : TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
15 : */
16 : /**
17 : * @file exchange-tools/taler-exchange-dbinit.c
18 : * @brief Create tables for the exchange database.
19 : * @author Florian Dold
20 : * @author Christian Grothoff
21 : */
22 : #include "platform.h"
23 : #include <gnunet/gnunet_util_lib.h>
24 : #define GNUNET_PQ_RECONNECT_CALLBACK_CLOSURE bool
25 : #include <gnunet/gnunet_pq_lib.h>
26 : #include "exchangedb_lib.h"
27 :
28 : #include "exchange-database/gc.h"
29 : #include "exchange-database/preflight.h"
30 : #include "exchange-database/create_tables.h"
31 : #include "exchange-database/delete_shard_locks.h"
32 : #include "exchange-database/disable_rules.h"
33 : #include "exchange-database/enable_rules.h"
34 : #include "exchange-database/drop_tables.h"
35 : #include "exchange-database/inject_auditor_triggers.h"
36 :
37 : /**
38 : * Return value from main().
39 : */
40 : static int global_ret;
41 :
42 : /**
43 : * -a option: inject auditor triggers
44 : */
45 : static int inject_auditor;
46 :
47 : /**
48 : * -r option: do full DB reset
49 : */
50 : static int reset_db;
51 :
52 : /**
53 : * -e option: enable custom rules
54 : */
55 : static char *enable_rules;
56 :
57 : /**
58 : * -d option: disable custom rules
59 : */
60 : static char *disable_rules;
61 :
62 : /**
63 : * -s option: clear revolving shard locks
64 : */
65 : static int clear_shards;
66 :
67 : /**
68 : * -g option: garbage collect DB
69 : */
70 : static int gc_db;
71 :
72 : /**
73 : * -P option: setup a partitioned database
74 : */
75 : static uint32_t num_partitions;
76 :
77 : /**
78 : * -f option: force partitions to be created when there is only one
79 : */
80 : static int force_create_partitions;
81 :
82 :
83 : /**
84 : * Main function that will be run.
85 : *
86 : * @param cls closure
87 : * @param args remaining command-line arguments
88 : * @param cfgfile name of the configuration file used (for saving, can be NULL!)
89 : * @param cfg configuration
90 : */
91 : static void
92 21 : run (void *cls,
93 : char *const *args,
94 : const char *cfgfile,
95 : const struct GNUNET_CONFIGURATION_Handle *cfg)
96 : {
97 : struct TALER_EXCHANGEDB_PostgresContext *pg;
98 :
99 : (void) cls;
100 : (void) args;
101 : (void) cfgfile;
102 21 : pg = TALER_EXCHANGEDB_connect_admin (cfg);
103 21 : if (NULL == pg)
104 : {
105 0 : fprintf (stderr,
106 : "Failed to initialize database connection.\n");
107 0 : global_ret = EXIT_NOTINSTALLED;
108 0 : return;
109 : }
110 21 : if (reset_db)
111 : {
112 18 : if (GNUNET_OK !=
113 18 : TALER_EXCHANGEDB_drop_tables (pg))
114 : {
115 1 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
116 : "Could not drop tables as requested. Either database was not yet initialized, or permission denied. Consult the logs. Will still try to create new tables.\n");
117 : }
118 : }
119 21 : if (GNUNET_OK !=
120 42 : TALER_EXCHANGEDB_create_tables (pg,
121 42 : force_create_partitions ||
122 21 : (num_partitions > 0),
123 21 : num_partitions))
124 : {
125 0 : fprintf (stderr,
126 : "Failed to initialize database.\n");
127 0 : global_ret = EXIT_NOPERMISSION;
128 0 : goto exit;
129 : }
130 21 : if (gc_db || clear_shards)
131 : {
132 0 : if (clear_shards)
133 : {
134 0 : if (GNUNET_OK !=
135 0 : TALER_EXCHANGEDB_delete_shard_locks (pg))
136 : {
137 0 : fprintf (stderr,
138 : "Clearing revolving shards failed!\n");
139 : }
140 : }
141 0 : if (gc_db)
142 : {
143 0 : if (GNUNET_SYSERR ==
144 0 : TALER_EXCHANGEDB_gc (pg))
145 : {
146 0 : fprintf (stderr,
147 : "Garbage collection failed!\n");
148 : }
149 : }
150 : }
151 21 : if (inject_auditor)
152 : {
153 0 : if (GNUNET_SYSERR ==
154 0 : TALER_EXCHANGEDB_inject_auditor_triggers (pg))
155 : {
156 0 : fprintf (stderr,
157 : "Injecting auditor triggers failed!\n");
158 0 : global_ret = EXIT_FAILURE;
159 : }
160 : }
161 21 : if (NULL != disable_rules)
162 : {
163 0 : if (0 == strcasecmp (disable_rules,
164 : "exchange"))
165 : {
166 0 : fprintf (stderr,
167 : "'exchange' is not a customization rule set!\n");
168 0 : global_ret = EXIT_INVALIDARGUMENT;
169 0 : goto exit;
170 : }
171 0 : switch (TALER_EXCHANGEDB_disable_rules (pg,
172 : disable_rules))
173 : {
174 0 : case GNUNET_DB_STATUS_HARD_ERROR:
175 0 : fprintf (stderr,
176 : "Hard DB error trying to disable customization!\n");
177 0 : global_ret = EXIT_FAILURE;
178 0 : goto exit;
179 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
180 : /* single call, should not be possible */
181 0 : GNUNET_break (0);
182 0 : global_ret = EXIT_FAILURE;
183 0 : goto exit;
184 0 : case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
185 0 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
186 : "Nothing to do to disable customization schema `%s'\n",
187 : disable_rules);
188 0 : break;
189 0 : case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
190 0 : break;
191 : }
192 : }
193 21 : if (NULL != enable_rules)
194 : {
195 0 : if (0 == strcasecmp (enable_rules,
196 : "exchange"))
197 : {
198 0 : fprintf (stderr,
199 : "'exchange' is not a customization rule set!\n");
200 0 : global_ret = EXIT_INVALIDARGUMENT;
201 0 : goto exit;
202 : }
203 0 : if (GNUNET_OK !=
204 0 : TALER_EXCHANGEDB_enable_rules (pg,
205 : enable_rules))
206 : {
207 0 : fprintf (stderr,
208 : "Enabling customization `%s' failed!\n",
209 : enable_rules);
210 0 : global_ret = EXIT_FAILURE;
211 0 : goto exit;
212 : }
213 : }
214 21 : exit:
215 21 : TALER_EXCHANGEDB_disconnect (pg);
216 : }
217 :
218 :
219 : /**
220 : * The main function of the database initialization tool.
221 : * Used to initialize the Taler Exchange's database.
222 : *
223 : * @param argc number of arguments from the command line
224 : * @param argv command line arguments
225 : * @return 0 ok, non-zero on error
226 : */
227 : int
228 21 : main (int argc,
229 : char *const *argv)
230 : {
231 21 : const struct GNUNET_GETOPT_CommandLineOption options[] = {
232 21 : GNUNET_GETOPT_option_flag ('a',
233 : "inject-auditor",
234 : "inject auditor triggers",
235 : &inject_auditor),
236 21 : GNUNET_GETOPT_option_string ('d',
237 : "disable-customization",
238 : "SCHEMA",
239 : "remove customization rules of SCHEMA",
240 : &disable_rules),
241 21 : GNUNET_GETOPT_option_string ('e',
242 : "enable-customization",
243 : "SCHEMA",
244 : "enable or update (to latest version) the customization rules of SCHEMA",
245 : &enable_rules),
246 21 : GNUNET_GETOPT_option_flag ('g',
247 : "gc",
248 : "garbage collect database",
249 : &gc_db),
250 21 : GNUNET_GETOPT_option_flag ('r',
251 : "reset",
252 : "reset database (DANGEROUS: all existing data is lost!)",
253 : &reset_db),
254 21 : GNUNET_GETOPT_option_flag ('s',
255 : "shardunlock",
256 : "unlock all revolving shard locks (use after system crash or shard size change while services are not running)",
257 : &clear_shards),
258 21 : GNUNET_GETOPT_option_uint ('P',
259 : "partition",
260 : "NUMBER",
261 : "Setup a partitioned database where each table which can be partitioned holds NUMBER partitions on a single DB node",
262 : &num_partitions),
263 21 : GNUNET_GETOPT_option_flag ('f',
264 : "force",
265 : "Force partitions to be created if there is only one partition",
266 : &force_create_partitions),
267 : GNUNET_GETOPT_OPTION_END
268 : };
269 : enum GNUNET_GenericReturnValue ret;
270 :
271 21 : ret = GNUNET_PROGRAM_run (
272 : TALER_EXCHANGE_project_data (),
273 : argc, argv,
274 : "taler-exchange-dbinit",
275 : gettext_noop ("Initialize Taler exchange database"),
276 : options,
277 : &run, NULL);
278 21 : if (GNUNET_SYSERR == ret)
279 0 : return EXIT_INVALIDARGUMENT;
280 21 : if (GNUNET_NO == ret)
281 0 : return EXIT_SUCCESS;
282 21 : return global_ret;
283 : }
284 :
285 :
286 : /* end of taler-exchange-dbinit.c */
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