1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
|
/*
This file is part of TALER
Copyright (C) 2022 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your
option) any later version.
TALER is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public
License along with TALER; see the file COPYING. If not, see
<http://www.gnu.org/licenses/>
*/
/**
* @file testing/testing_api_cmd_reserve_purse.c
* @brief command for testing /reserves/$PID/purse
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "taler_testing_lib.h"
#include "taler_signatures.h"
#include "backoff.h"
/**
* State for a "purse create with merge" CMD.
*/
struct ReservePurseState
{
/**
* Merge time (local time when the command was
* executed).
*/
struct GNUNET_TIME_Timestamp merge_timestamp;
/**
* Reserve private key.
*/
struct TALER_ReservePrivateKeyP reserve_priv;
/**
* Private key of the purse.
*/
struct TALER_PurseContractPrivateKeyP purse_priv;
/**
* Public key of the purse.
*/
struct TALER_PurseContractPublicKeyP purse_pub;
/**
* Private key with the merge capability.
*/
struct TALER_PurseMergePrivateKeyP merge_priv;
/**
* Private key to decrypt the contract.
*/
struct TALER_ContractDiffiePrivateP contract_priv;
/**
* Handle while operation is running.
*/
struct TALER_EXCHANGE_PurseCreateMergeHandle *dh;
/**
* When will the purse expire?
*/
struct GNUNET_TIME_Relative expiration_rel;
/**
* When will the purse expire?
*/
struct GNUNET_TIME_Timestamp purse_expiration;
/**
* Contract terms for the purse.
*/
json_t *contract_terms;
/**
* Refernece to the reserve, or NULL (!).
*/
const char *reserve_ref;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
};
/**
* Callback to analyze the /reserves/$PID/purse response, just used to check if
* the response code is acceptable.
*
* @param cls closure.
* @param dr purse response details
*/
static void
purse_cb (void *cls,
const struct TALER_EXCHANGE_PurseCreateMergeResponse *dr)
{
struct ReservePurseState *ds = cls;
ds->dh = NULL;
if (ds->expected_response_code != dr->hr.http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s in %s:%u\n",
dr->hr.http_status,
ds->is->commands[ds->is->ip].label,
__FILE__,
__LINE__);
json_dumpf (dr->hr.reply,
stderr,
0);
TALER_TESTING_interpreter_fail (ds->is);
return;
}
TALER_TESTING_interpreter_next (ds->is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command to execute.
* @param is the interpreter state.
*/
static void
purse_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct ReservePurseState *ds = cls;
const struct TALER_ReservePrivateKeyP *reserve_priv;
const struct TALER_TESTING_Command *ref;
(void) cmd;
ds->is = is;
ref = TALER_TESTING_interpreter_lookup_command (ds->is,
ds->reserve_ref);
GNUNET_assert (NULL != ref);
if (GNUNET_OK !=
TALER_TESTING_get_trait_reserve_priv (ref,
&reserve_priv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (ds->is);
return;
}
ds->reserve_priv = *reserve_priv;
GNUNET_CRYPTO_eddsa_key_create (&ds->purse_priv.eddsa_priv);
GNUNET_CRYPTO_eddsa_key_get_public (&ds->purse_priv.eddsa_priv,
&ds->purse_pub.eddsa_pub);
GNUNET_CRYPTO_eddsa_key_create (&ds->merge_priv.eddsa_priv);
GNUNET_CRYPTO_ecdhe_key_create (&ds->contract_priv.ecdhe_priv);
ds->purse_expiration = GNUNET_TIME_absolute_to_timestamp (
GNUNET_TIME_relative_to_absolute (ds->expiration_rel));
GNUNET_assert (0 ==
json_object_set_new (
ds->contract_terms,
"pay_deadline",
GNUNET_JSON_from_timestamp (ds->purse_expiration)));
ds->merge_timestamp = GNUNET_TIME_timestamp_get ();
ds->dh = TALER_EXCHANGE_purse_create_with_merge (
is->exchange,
&ds->reserve_priv,
&ds->purse_priv,
&ds->merge_priv,
&ds->contract_priv,
ds->contract_terms,
true /* upload contract */,
ds->merge_timestamp,
&purse_cb,
ds);
if (NULL == ds->dh)
{
GNUNET_break (0);
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Could not purse reserve\n");
TALER_TESTING_interpreter_fail (is);
return;
}
}
/**
* Free the state of a "purse" CMD, and possibly cancel a
* pending operation thereof.
*
* @param cls closure, must be a `struct ReservePurseState`.
* @param cmd the command which is being cleaned up.
*/
static void
purse_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct ReservePurseState *ds = cls;
if (NULL != ds->dh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
ds->is->ip,
cmd->label);
TALER_EXCHANGE_purse_create_with_merge_cancel (ds->dh);
ds->dh = NULL;
}
json_decref (ds->contract_terms);
GNUNET_free (ds);
}
/**
* Offer internal data from a "purse" CMD, to other commands.
*
* @param cls closure.
* @param[out] ret result.
* @param trait name of the trait.
* @param index index number of the object to offer.
* @return #GNUNET_OK on success.
*/
static enum GNUNET_GenericReturnValue
purse_traits (void *cls,
const void **ret,
const char *trait,
unsigned int index)
{
struct ReservePurseState *ds = cls;
struct TALER_TESTING_Trait traits[] = {
TALER_TESTING_make_trait_timestamp (0,
&ds->merge_timestamp),
TALER_TESTING_make_trait_contract_terms (ds->contract_terms),
TALER_TESTING_make_trait_purse_priv (&ds->purse_priv),
TALER_TESTING_make_trait_purse_pub (&ds->purse_pub),
TALER_TESTING_make_trait_merge_priv (&ds->merge_priv),
TALER_TESTING_make_trait_contract_priv (&ds->contract_priv),
TALER_TESTING_make_trait_reserve_priv (&ds->reserve_priv),
TALER_TESTING_trait_end ()
};
return TALER_TESTING_get_trait (traits,
ret,
trait,
index);
}
struct TALER_TESTING_Command
TALER_TESTING_cmd_purse_create_with_reserve (
const char *label,
unsigned int expected_http_status,
const char *contract_terms,
bool upload_contract,
struct GNUNET_TIME_Relative expiration,
const char *reserve_ref)
{
struct ReservePurseState *ds;
json_error_t err;
ds = GNUNET_new (struct ReservePurseState);
ds->expiration_rel = expiration;
ds->contract_terms = json_loads (contract_terms,
0 /* flags */,
&err);
GNUNET_assert (NULL != ds->contract_terms);
ds->reserve_ref = reserve_ref;
ds->expected_response_code = expected_http_status;
{
struct TALER_TESTING_Command cmd = {
.cls = ds,
.label = label,
.run = &purse_run,
.cleanup = &purse_cleanup,
.traits = &purse_traits
};
return cmd;
}
}
/* end of testing_api_cmd_reserve_purse.c */
|