Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2016-2022 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify it
6 : 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.
9 :
10 : TALER is distributed in the hope that it will be useful,
11 : but WITHOUT ANY WARRANTY; without even the implied warranty of
12 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 : GNU General Public License for more details.
14 :
15 : You should have received a copy of the GNU General Public
16 : License along with TALER; see the file COPYING. If not,
17 : see <http://www.gnu.org/licenses/>
18 : */
19 :
20 : /**
21 : * @file bank-lib/taler-fakebank-run.c
22 : * @brief Launch the fakebank, for testing the fakebank itself.
23 : * @author Marcello Stanisci
24 : * @author Christian Grothoff
25 : */
26 : #include "taler/platform.h"
27 : #include "taler/taler_fakebank_lib.h"
28 : #include "taler/taler_mhd_lib.h"
29 :
30 : /**
31 : * Number of threads to use (-n)
32 : */
33 : static unsigned int num_threads;
34 :
35 : /**
36 : * Force connection close after each request (-C)
37 : */
38 : static int connection_close;
39 :
40 : /**
41 : * Global return value.
42 : */
43 : static int ret;
44 :
45 : /**
46 : * Handle for the service.
47 : */
48 : static struct TALER_FAKEBANK_Handle *fb;
49 :
50 : /**
51 : * Keepalive task in multi-threaded mode.
52 : */
53 : static struct GNUNET_SCHEDULER_Task *keepalive;
54 :
55 : /**
56 : * Amount to credit an account with on /register.
57 : */
58 : static struct TALER_Amount signup_bonus;
59 :
60 : /**
61 : * Stop the process.
62 : *
63 : * @param cls NULL
64 : */
65 : static void
66 3 : do_shutdown (void *cls)
67 : {
68 : (void) cls;
69 3 : TALER_FAKEBANK_stop (fb);
70 3 : fb = NULL;
71 3 : if (NULL != keepalive)
72 : {
73 3 : GNUNET_SCHEDULER_cancel (keepalive);
74 3 : keepalive = NULL;
75 : }
76 3 : }
77 :
78 :
79 : /**
80 : * Task that should never be run.
81 : *
82 : * @param cls NULL
83 : */
84 : static void
85 0 : keepalive_task (void *cls)
86 : {
87 : (void) cls;
88 0 : GNUNET_assert (0);
89 : }
90 :
91 :
92 : /**
93 : * Main function that will be run.
94 : *
95 : * @param cls closure
96 : * @param args remaining command-line arguments
97 : * @param cfgfile name of the configuration file used
98 : * (for saving, can be NULL!)
99 : * @param cfg configuration
100 : */
101 : static void
102 3 : run (void *cls,
103 : char *const *args,
104 : const char *cfgfile,
105 : const struct GNUNET_CONFIGURATION_Handle *cfg)
106 : {
107 3 : unsigned long long port = 8082;
108 3 : unsigned long long ram = 1024 * 128; /* 128 k entries */
109 : char *currency_string;
110 : char *hostname;
111 : char *exchange_url;
112 :
113 : (void) cls;
114 : (void) args;
115 : (void) cfgfile;
116 3 : if (GNUNET_OK !=
117 3 : TALER_config_get_currency (cfg,
118 : "exchange",
119 : ¤cy_string))
120 : {
121 0 : ret = EXIT_NOTCONFIGURED;
122 0 : return;
123 : }
124 3 : if (GNUNET_OK !=
125 3 : GNUNET_CONFIGURATION_get_value_number (cfg,
126 : "bank",
127 : "HTTP_PORT",
128 : &port))
129 : {
130 0 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
131 : "Listening on default port %llu\n",
132 : port);
133 : }
134 3 : if (GNUNET_OK !=
135 3 : GNUNET_CONFIGURATION_get_value_string (cfg,
136 : "bank",
137 : "SUGGESTED_EXCHANGE",
138 : &exchange_url))
139 : {
140 : /* no suggested exchange */
141 3 : exchange_url = NULL;
142 : }
143 3 : if (GNUNET_OK !=
144 3 : GNUNET_CONFIGURATION_get_value_string (cfg,
145 : "bank",
146 : "HOSTNAME",
147 : &hostname))
148 : {
149 3 : hostname = GNUNET_strdup ("localhost");
150 : }
151 3 : if (GNUNET_OK !=
152 3 : GNUNET_CONFIGURATION_get_value_number (cfg,
153 : "bank",
154 : "RAM_LIMIT",
155 : &ram))
156 : {
157 2 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
158 : "Maximum transaction history in RAM set to default of %llu\n",
159 : ram);
160 : }
161 : {
162 : enum TALER_MHD_GlobalOptions go;
163 :
164 3 : go = TALER_MHD_GO_NONE;
165 3 : if (0 != connection_close)
166 0 : go |= TALER_MHD_GO_FORCE_CONNECTION_CLOSE;
167 3 : TALER_MHD_setup (go);
168 : }
169 3 : if (GNUNET_OK !=
170 3 : TALER_amount_is_valid (&signup_bonus))
171 : {
172 3 : GNUNET_assert (GNUNET_OK ==
173 : TALER_amount_set_zero (currency_string,
174 : &signup_bonus));
175 : }
176 3 : if (0 != strcmp (currency_string,
177 : signup_bonus.currency))
178 : {
179 0 : fprintf (stderr,
180 : "Signup bonus and main currency do not match\n");
181 0 : ret = EXIT_INVALIDARGUMENT;
182 0 : return;
183 : }
184 6 : fb = TALER_FAKEBANK_start3 (hostname,
185 3 : (uint16_t) port,
186 : exchange_url,
187 : currency_string,
188 : ram,
189 : num_threads,
190 : &signup_bonus);
191 3 : GNUNET_free (hostname);
192 3 : GNUNET_free (exchange_url);
193 3 : GNUNET_free (currency_string);
194 3 : if (NULL == fb)
195 : {
196 0 : GNUNET_break (0);
197 0 : ret = EXIT_FAILURE;
198 0 : return;
199 : }
200 3 : keepalive = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
201 : &keepalive_task,
202 : NULL);
203 3 : GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
204 : NULL);
205 3 : ret = EXIT_SUCCESS;
206 : }
207 :
208 :
209 : /**
210 : * The main function.
211 : *
212 : * @param argc number of arguments from the command line
213 : * @param argv command line arguments
214 : * @return 0 ok, 1 on error
215 : */
216 : int
217 3 : main (int argc,
218 : char *const *argv)
219 : {
220 3 : const struct GNUNET_GETOPT_CommandLineOption options[] = {
221 3 : GNUNET_GETOPT_option_flag ('C',
222 : "connection-close",
223 : "force HTTP connections to be closed after each request",
224 : &connection_close),
225 3 : GNUNET_GETOPT_option_uint ('n',
226 : "num-threads",
227 : "NUM_THREADS",
228 : "size of the thread pool",
229 : &num_threads),
230 3 : TALER_getopt_get_amount ('s',
231 : "signup-bonus",
232 : "AMOUNT",
233 : "amount to credit newly registered account (created out of thin air)",
234 : &signup_bonus),
235 : GNUNET_GETOPT_OPTION_END
236 : };
237 : enum GNUNET_GenericReturnValue iret;
238 :
239 3 : iret = GNUNET_PROGRAM_run (TALER_FAKEBANK_project_data (),
240 : argc, argv,
241 : "taler-fakebank-run",
242 : "Runs the fakebank",
243 : options,
244 : &run,
245 : NULL);
246 3 : if (GNUNET_SYSERR == iret)
247 0 : return EXIT_INVALIDARGUMENT;
248 3 : if (GNUNET_NO == iret)
249 0 : return EXIT_SUCCESS;
250 3 : return ret;
251 : }
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