Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 2022-2023 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 get_coin_transactions.c
18 : * @brief Low-level (statement-level) Postgres database access for the exchange
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_error_codes.h"
22 : #include "exchangedb_lib.h"
23 : #include "taler/taler_pq_lib.h"
24 : #include "exchange-database/get_coin_transactions.h"
25 : #include "helper.h"
26 : #include "exchange-database/start_read_committed.h"
27 : #include "exchange-database/commit.h"
28 : #include "exchange-database/rollback.h"
29 :
30 :
31 : /**
32 : * How often do we re-try when encountering DB serialization issues?
33 : * (We are read-only, so can only happen due to concurrent insert,
34 : * which should be very rare.)
35 : */
36 : #define RETRIES 3
37 :
38 : /**
39 : * Closure for callbacks called from #TALER_EXCHANGEDB_get_coin_transactions()
40 : */
41 : struct CoinHistoryContext
42 : {
43 : /**
44 : * Head of the coin's history list.
45 : */
46 : struct TALER_EXCHANGEDB_TransactionList *head;
47 :
48 : /**
49 : * Public key of the coin we are building the history for.
50 : */
51 : const struct TALER_CoinSpendPublicKeyP *coin_pub;
52 :
53 : /**
54 : * Plugin context.
55 : */
56 : struct TALER_EXCHANGEDB_PostgresContext *pg;
57 :
58 : /**
59 : * Our current offset in the coin history.
60 : */
61 : uint64_t chid;
62 :
63 : /**
64 : * Set to 'true' if the transaction failed.
65 : */
66 : bool failed;
67 :
68 : };
69 :
70 :
71 : /**
72 : * Function to be called with the results of a SELECT statement
73 : * that has returned @a num_results results.
74 : *
75 : * @param cls closure of type `struct CoinHistoryContext`
76 : * @param result the postgres result
77 : * @param num_results the number of results in @a result
78 : */
79 : static void
80 10 : add_coin_deposit (void *cls,
81 : PGresult *result,
82 : unsigned int num_results)
83 : {
84 10 : struct CoinHistoryContext *chc = cls;
85 10 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
86 :
87 20 : for (unsigned int i = 0; i < num_results; i++)
88 : {
89 : struct TALER_EXCHANGEDB_DepositListEntry *deposit;
90 : struct TALER_EXCHANGEDB_TransactionList *tl;
91 : uint64_t serial_id;
92 :
93 10 : deposit = GNUNET_new (struct TALER_EXCHANGEDB_DepositListEntry);
94 : {
95 10 : struct GNUNET_PQ_ResultSpec rs[] = {
96 10 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
97 : &deposit->amount_with_fee),
98 10 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
99 : &deposit->deposit_fee),
100 10 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
101 : &deposit->h_denom_pub),
102 10 : GNUNET_PQ_result_spec_allow_null (
103 10 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
104 : &deposit->h_age_commitment),
105 : &deposit->no_age_commitment),
106 10 : GNUNET_PQ_result_spec_allow_null (
107 10 : GNUNET_PQ_result_spec_auto_from_type ("wallet_data_hash",
108 : &deposit->wallet_data_hash),
109 : &deposit->no_wallet_data_hash),
110 10 : GNUNET_PQ_result_spec_timestamp ("wallet_timestamp",
111 : &deposit->timestamp),
112 10 : GNUNET_PQ_result_spec_timestamp ("refund_deadline",
113 : &deposit->refund_deadline),
114 10 : GNUNET_PQ_result_spec_timestamp ("wire_deadline",
115 : &deposit->wire_deadline),
116 10 : GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
117 : &deposit->merchant_pub),
118 10 : GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
119 : &deposit->h_contract_terms),
120 10 : GNUNET_PQ_result_spec_auto_from_type ("wire_salt",
121 : &deposit->wire_salt),
122 10 : GNUNET_PQ_result_spec_string ("payto_uri",
123 : &deposit->receiver_wire_account.full_payto
124 : ),
125 10 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
126 : &deposit->csig),
127 10 : GNUNET_PQ_result_spec_uint64 ("coin_deposit_serial_id",
128 : &serial_id),
129 10 : GNUNET_PQ_result_spec_auto_from_type ("done",
130 : &deposit->done),
131 : GNUNET_PQ_result_spec_end
132 : };
133 :
134 10 : if (GNUNET_OK !=
135 10 : GNUNET_PQ_extract_result (result,
136 : rs,
137 : i))
138 : {
139 0 : GNUNET_break (0);
140 0 : GNUNET_free (deposit);
141 0 : chc->failed = true;
142 0 : return;
143 : }
144 : }
145 10 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
146 10 : tl->next = chc->head;
147 10 : tl->type = TALER_EXCHANGEDB_TT_DEPOSIT;
148 10 : tl->details.deposit = deposit;
149 10 : tl->serial_id = serial_id;
150 10 : tl->coin_history_id = chc->chid;
151 10 : chc->head = tl;
152 : }
153 : }
154 :
155 :
156 : /**
157 : * Function to be called with the results of a SELECT statement
158 : * that has returned @a num_results results.
159 : *
160 : * @param cls closure of type `struct CoinHistoryContext`
161 : * @param result the postgres result
162 : * @param num_results the number of results in @a result
163 : */
164 : static void
165 8 : add_coin_purse_deposit (void *cls,
166 : PGresult *result,
167 : unsigned int num_results)
168 : {
169 8 : struct CoinHistoryContext *chc = cls;
170 8 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
171 :
172 16 : for (unsigned int i = 0; i < num_results; i++)
173 : {
174 : struct TALER_EXCHANGEDB_PurseDepositListEntry *deposit;
175 : struct TALER_EXCHANGEDB_TransactionList *tl;
176 : uint64_t serial_id;
177 :
178 8 : deposit = GNUNET_new (struct TALER_EXCHANGEDB_PurseDepositListEntry);
179 : {
180 : bool not_finished;
181 8 : struct GNUNET_PQ_ResultSpec rs[] = {
182 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
183 : &deposit->amount),
184 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
185 : &deposit->deposit_fee),
186 8 : GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
187 : &deposit->purse_pub),
188 8 : GNUNET_PQ_result_spec_uint64 ("purse_deposit_serial_id",
189 : &serial_id),
190 8 : GNUNET_PQ_result_spec_allow_null (
191 : GNUNET_PQ_result_spec_string ("partner_base_url",
192 : &deposit->exchange_base_url),
193 : NULL),
194 8 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
195 : &deposit->coin_sig),
196 8 : GNUNET_PQ_result_spec_allow_null (
197 8 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
198 : &deposit->h_age_commitment),
199 : &deposit->no_age_commitment),
200 8 : GNUNET_PQ_result_spec_allow_null (
201 : GNUNET_PQ_result_spec_bool ("refunded",
202 : &deposit->refunded),
203 : ¬_finished),
204 8 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
205 : &deposit->h_denom_pub),
206 : GNUNET_PQ_result_spec_end
207 : };
208 :
209 8 : if (GNUNET_OK !=
210 8 : GNUNET_PQ_extract_result (result,
211 : rs,
212 : i))
213 : {
214 0 : GNUNET_break (0);
215 0 : GNUNET_free (deposit);
216 0 : chc->failed = true;
217 0 : return;
218 : }
219 8 : if (not_finished)
220 6 : deposit->refunded = false;
221 : /* double-check for all-zeros age commitment */
222 8 : if (! deposit->no_age_commitment)
223 : deposit->no_age_commitment
224 0 : = GNUNET_is_zero (&deposit->h_age_commitment);
225 : }
226 8 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
227 8 : tl->next = chc->head;
228 8 : tl->type = TALER_EXCHANGEDB_TT_PURSE_DEPOSIT;
229 8 : tl->details.purse_deposit = deposit;
230 8 : tl->serial_id = serial_id;
231 8 : tl->coin_history_id = chc->chid;
232 8 : chc->head = tl;
233 : }
234 : }
235 :
236 :
237 : /**
238 : * Function to be called with the results of a SELECT statement
239 : * that has returned @a num_results results.
240 : *
241 : * @param cls closure of type `struct CoinHistoryContext`
242 : * @param result the postgres result
243 : * @param num_results the number of results in @a result
244 : */
245 : static void
246 5 : add_coin_melt (void *cls,
247 : PGresult *result,
248 : unsigned int num_results)
249 : {
250 5 : struct CoinHistoryContext *chc = cls;
251 5 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
252 :
253 10 : for (unsigned int i = 0; i<num_results; i++)
254 : {
255 : struct TALER_EXCHANGEDB_MeltListEntry *melt;
256 : struct TALER_EXCHANGEDB_TransactionList *tl;
257 : uint64_t serial_id;
258 :
259 5 : melt = GNUNET_new (struct TALER_EXCHANGEDB_MeltListEntry);
260 : {
261 5 : struct TALER_DenominationHashP *denom_pub_hashes = NULL;
262 5 : struct GNUNET_PQ_ResultSpec rs[] = {
263 5 : GNUNET_PQ_result_spec_auto_from_type ("rc",
264 : &melt->rc),
265 : /* oldcoin_index not needed */
266 5 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
267 : &melt->h_denom_pub),
268 5 : GNUNET_PQ_result_spec_auto_from_type ("old_coin_sig",
269 : &melt->coin_sig),
270 5 : GNUNET_PQ_result_spec_auto_from_type ("refresh_seed",
271 : &melt->refresh_seed),
272 5 : TALER_PQ_result_spec_array_denom_hash (pg->conn,
273 : "denom_pub_hashes",
274 : &melt->num_coins,
275 : &denom_pub_hashes),
276 5 : GNUNET_PQ_result_spec_allow_null (
277 5 : GNUNET_PQ_result_spec_auto_from_type ("blinding_seed",
278 : &melt->blinding_seed),
279 : &melt->no_blinding_seed),
280 5 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
281 : &melt->amount_with_fee),
282 5 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refresh",
283 : &melt->melt_fee),
284 5 : GNUNET_PQ_result_spec_allow_null (
285 5 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
286 : &melt->h_age_commitment),
287 : &melt->no_age_commitment),
288 5 : GNUNET_PQ_result_spec_uint64 ("refresh_id",
289 : &serial_id),
290 : GNUNET_PQ_result_spec_end
291 : };
292 :
293 5 : if (GNUNET_OK !=
294 5 : GNUNET_PQ_extract_result (result,
295 : rs,
296 : i))
297 : {
298 0 : GNUNET_break (0);
299 0 : GNUNET_PQ_cleanup_result (rs);
300 0 : GNUNET_free (melt);
301 0 : chc->failed = true;
302 0 : return;
303 : }
304 5 : melt->denom_pub_hashes = denom_pub_hashes;
305 5 : denom_pub_hashes = NULL;
306 5 : GNUNET_PQ_cleanup_result (rs);
307 : }
308 5 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
309 5 : tl->next = chc->head;
310 5 : tl->type = TALER_EXCHANGEDB_TT_MELT;
311 5 : tl->details.melt = melt;
312 5 : tl->serial_id = serial_id;
313 5 : tl->coin_history_id = chc->chid;
314 5 : chc->head = tl;
315 : }
316 : }
317 :
318 :
319 : /**
320 : * Function to be called with the results of a SELECT statement
321 : * that has returned @a num_results results.
322 : *
323 : * @param cls closure of type `struct CoinHistoryContext`
324 : * @param result the postgres result
325 : * @param num_results the number of results in @a result
326 : */
327 : static void
328 8 : add_coin_refund (void *cls,
329 : PGresult *result,
330 : unsigned int num_results)
331 : {
332 8 : struct CoinHistoryContext *chc = cls;
333 8 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
334 :
335 16 : for (unsigned int i = 0; i<num_results; i++)
336 : {
337 : struct TALER_EXCHANGEDB_RefundListEntry *refund;
338 : struct TALER_EXCHANGEDB_TransactionList *tl;
339 : uint64_t serial_id;
340 :
341 8 : refund = GNUNET_new (struct TALER_EXCHANGEDB_RefundListEntry);
342 : {
343 8 : struct GNUNET_PQ_ResultSpec rs[] = {
344 8 : GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
345 : &refund->merchant_pub),
346 8 : GNUNET_PQ_result_spec_auto_from_type ("merchant_sig",
347 : &refund->merchant_sig),
348 8 : GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
349 : &refund->h_contract_terms),
350 8 : GNUNET_PQ_result_spec_uint64 ("rtransaction_id",
351 : &refund->rtransaction_id),
352 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
353 : &refund->refund_amount),
354 8 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refund",
355 : &refund->refund_fee),
356 8 : GNUNET_PQ_result_spec_uint64 ("refund_serial_id",
357 : &serial_id),
358 : GNUNET_PQ_result_spec_end
359 : };
360 :
361 8 : if (GNUNET_OK !=
362 8 : GNUNET_PQ_extract_result (result,
363 : rs,
364 : i))
365 : {
366 0 : GNUNET_break (0);
367 0 : GNUNET_free (refund);
368 0 : chc->failed = true;
369 0 : return;
370 : }
371 : }
372 8 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
373 8 : tl->next = chc->head;
374 8 : tl->type = TALER_EXCHANGEDB_TT_REFUND;
375 8 : tl->details.refund = refund;
376 8 : tl->serial_id = serial_id;
377 8 : tl->coin_history_id = chc->chid;
378 8 : chc->head = tl;
379 : }
380 : }
381 :
382 :
383 : /**
384 : * Function to be called with the results of a SELECT statement
385 : * that has returned @a num_results results.
386 : *
387 : * @param cls closure of type `struct CoinHistoryContext`
388 : * @param result the postgres result
389 : * @param num_results the number of results in @a result
390 : */
391 : static void
392 0 : add_coin_purse_decision (void *cls,
393 : PGresult *result,
394 : unsigned int num_results)
395 : {
396 0 : struct CoinHistoryContext *chc = cls;
397 0 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
398 :
399 0 : for (unsigned int i = 0; i<num_results; i++)
400 : {
401 : struct TALER_EXCHANGEDB_PurseRefundListEntry *prefund;
402 : struct TALER_EXCHANGEDB_TransactionList *tl;
403 : uint64_t serial_id;
404 :
405 0 : prefund = GNUNET_new (struct TALER_EXCHANGEDB_PurseRefundListEntry);
406 : {
407 0 : struct GNUNET_PQ_ResultSpec rs[] = {
408 0 : GNUNET_PQ_result_spec_auto_from_type ("purse_pub",
409 : &prefund->purse_pub),
410 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
411 : &prefund->refund_amount),
412 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("fee_refund",
413 : &prefund->refund_fee),
414 0 : GNUNET_PQ_result_spec_uint64 ("purse_decision_serial_id",
415 : &serial_id),
416 : GNUNET_PQ_result_spec_end
417 : };
418 :
419 0 : if (GNUNET_OK !=
420 0 : GNUNET_PQ_extract_result (result,
421 : rs,
422 : i))
423 : {
424 0 : GNUNET_break (0);
425 0 : GNUNET_free (prefund);
426 0 : chc->failed = true;
427 0 : return;
428 : }
429 : }
430 0 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
431 0 : tl->next = chc->head;
432 0 : tl->type = TALER_EXCHANGEDB_TT_PURSE_REFUND;
433 0 : tl->details.purse_refund = prefund;
434 0 : tl->serial_id = serial_id;
435 0 : tl->coin_history_id = chc->chid;
436 0 : chc->head = tl;
437 : }
438 : }
439 :
440 :
441 : /**
442 : * Function to be called with the results of a SELECT statement
443 : * that has returned @a num_results results.
444 : *
445 : * @param cls closure of type `struct CoinHistoryContext`
446 : * @param result the postgres result
447 : * @param num_results the number of results in @a result
448 : */
449 : static void
450 0 : add_old_coin_recoup (void *cls,
451 : PGresult *result,
452 : unsigned int num_results)
453 : {
454 0 : struct CoinHistoryContext *chc = cls;
455 0 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
456 :
457 0 : for (unsigned int i = 0; i<num_results; i++)
458 : {
459 : struct TALER_EXCHANGEDB_RecoupRefreshListEntry *recoup;
460 : struct TALER_EXCHANGEDB_TransactionList *tl;
461 : uint64_t serial_id;
462 :
463 0 : recoup = GNUNET_new (struct TALER_EXCHANGEDB_RecoupRefreshListEntry);
464 : {
465 0 : struct GNUNET_PQ_ResultSpec rs[] = {
466 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
467 : &recoup->coin.coin_pub),
468 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
469 : &recoup->coin_sig),
470 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
471 : &recoup->coin_blind),
472 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
473 : &recoup->value),
474 0 : GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
475 : &recoup->timestamp),
476 0 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
477 : &recoup->coin.denom_pub_hash),
478 0 : TALER_PQ_result_spec_denom_sig ("denom_sig",
479 : &recoup->coin.denom_sig),
480 0 : GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid",
481 : &serial_id),
482 : GNUNET_PQ_result_spec_end
483 : };
484 :
485 0 : if (GNUNET_OK !=
486 0 : GNUNET_PQ_extract_result (result,
487 : rs,
488 : i))
489 : {
490 0 : GNUNET_break (0);
491 0 : GNUNET_free (recoup);
492 0 : chc->failed = true;
493 0 : return;
494 : }
495 0 : recoup->old_coin_pub = *chc->coin_pub;
496 : }
497 0 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
498 0 : tl->next = chc->head;
499 0 : tl->type = TALER_EXCHANGEDB_TT_RECOUP_REFRESH_RECEIVER;
500 0 : tl->details.old_coin_recoup = recoup;
501 0 : tl->serial_id = serial_id;
502 0 : tl->coin_history_id = chc->chid;
503 0 : chc->head = tl;
504 : }
505 : }
506 :
507 :
508 : /**
509 : * Function to be called with the results of a SELECT statement
510 : * that has returned @a num_results results.
511 : *
512 : * @param cls closure of type `struct CoinHistoryContext`
513 : * @param result the postgres result
514 : * @param num_results the number of results in @a result
515 : */
516 : static void
517 2 : add_coin_recoup (void *cls,
518 : PGresult *result,
519 : unsigned int num_results)
520 : {
521 2 : struct CoinHistoryContext *chc = cls;
522 2 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
523 :
524 4 : for (unsigned int i = 0; i<num_results; i++)
525 : {
526 : struct TALER_EXCHANGEDB_RecoupListEntry *recoup;
527 : struct TALER_EXCHANGEDB_TransactionList *tl;
528 : uint64_t serial_id;
529 :
530 2 : recoup = GNUNET_new (struct TALER_EXCHANGEDB_RecoupListEntry);
531 : {
532 2 : struct GNUNET_PQ_ResultSpec rs[] = {
533 2 : GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
534 : &recoup->reserve_pub),
535 2 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
536 : &recoup->coin_sig),
537 2 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
538 : &recoup->h_denom_pub),
539 2 : GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
540 : &recoup->coin_blind),
541 2 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
542 : &recoup->value),
543 2 : GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
544 : &recoup->timestamp),
545 2 : GNUNET_PQ_result_spec_uint64 ("recoup_uuid",
546 : &serial_id),
547 : GNUNET_PQ_result_spec_end
548 : };
549 :
550 2 : if (GNUNET_OK !=
551 2 : GNUNET_PQ_extract_result (result,
552 : rs,
553 : i))
554 : {
555 0 : GNUNET_break (0);
556 0 : GNUNET_free (recoup);
557 0 : chc->failed = true;
558 0 : return;
559 : }
560 : }
561 2 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
562 2 : tl->next = chc->head;
563 2 : tl->type = TALER_EXCHANGEDB_TT_RECOUP_WITHDRAW;
564 2 : tl->details.recoup = recoup;
565 2 : tl->serial_id = serial_id;
566 2 : tl->coin_history_id = chc->chid;
567 2 : chc->head = tl;
568 : }
569 : }
570 :
571 :
572 : /**
573 : * Function to be called with the results of a SELECT statement
574 : * that has returned @a num_results results.
575 : *
576 : * @param cls closure of type `struct CoinHistoryContext`
577 : * @param result the postgres result
578 : * @param num_results the number of results in @a result
579 : */
580 : static void
581 0 : add_coin_recoup_refresh (void *cls,
582 : PGresult *result,
583 : unsigned int num_results)
584 : {
585 0 : struct CoinHistoryContext *chc = cls;
586 0 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
587 :
588 0 : for (unsigned int i = 0; i<num_results; i++)
589 : {
590 : struct TALER_EXCHANGEDB_RecoupRefreshListEntry *recoup;
591 : struct TALER_EXCHANGEDB_TransactionList *tl;
592 : uint64_t serial_id;
593 :
594 0 : recoup = GNUNET_new (struct TALER_EXCHANGEDB_RecoupRefreshListEntry);
595 : {
596 0 : struct GNUNET_PQ_ResultSpec rs[] = {
597 0 : GNUNET_PQ_result_spec_auto_from_type ("old_coin_pub",
598 : &recoup->old_coin_pub),
599 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
600 : &recoup->coin_sig),
601 0 : GNUNET_PQ_result_spec_auto_from_type ("coin_blind",
602 : &recoup->coin_blind),
603 0 : TALER_PQ_RESULT_SPEC_AMOUNT ("amount",
604 : &recoup->value),
605 0 : GNUNET_PQ_result_spec_timestamp ("recoup_timestamp",
606 : &recoup->timestamp),
607 0 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
608 : &recoup->coin.denom_pub_hash),
609 0 : TALER_PQ_result_spec_denom_sig ("denom_sig",
610 : &recoup->coin.denom_sig),
611 0 : GNUNET_PQ_result_spec_uint64 ("recoup_refresh_uuid",
612 : &serial_id),
613 : GNUNET_PQ_result_spec_end
614 : };
615 :
616 0 : if (GNUNET_OK !=
617 0 : GNUNET_PQ_extract_result (result,
618 : rs,
619 : i))
620 : {
621 0 : GNUNET_break (0);
622 0 : GNUNET_free (recoup);
623 0 : chc->failed = true;
624 0 : return;
625 : }
626 0 : recoup->coin.coin_pub = *chc->coin_pub;
627 : }
628 0 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
629 0 : tl->next = chc->head;
630 0 : tl->type = TALER_EXCHANGEDB_TT_RECOUP_REFRESH;
631 0 : tl->details.recoup_refresh = recoup;
632 0 : tl->serial_id = serial_id;
633 0 : tl->coin_history_id = chc->chid;
634 0 : chc->head = tl;
635 : }
636 : }
637 :
638 :
639 : /**
640 : * Function to be called with the results of a SELECT statement
641 : * that has returned @a num_results results.
642 : *
643 : * @param cls closure of type `struct CoinHistoryContext`
644 : * @param result the postgres result
645 : * @param num_results the number of results in @a result
646 : */
647 : static void
648 5 : add_coin_reserve_open (void *cls,
649 : PGresult *result,
650 : unsigned int num_results)
651 : {
652 5 : struct CoinHistoryContext *chc = cls;
653 5 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
654 :
655 10 : for (unsigned int i = 0; i<num_results; i++)
656 : {
657 : struct TALER_EXCHANGEDB_ReserveOpenListEntry *role;
658 : struct TALER_EXCHANGEDB_TransactionList *tl;
659 : uint64_t serial_id;
660 :
661 5 : role = GNUNET_new (struct TALER_EXCHANGEDB_ReserveOpenListEntry);
662 : {
663 5 : struct GNUNET_PQ_ResultSpec rs[] = {
664 5 : GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
665 : &role->reserve_sig),
666 5 : GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
667 : &role->coin_sig),
668 5 : TALER_PQ_RESULT_SPEC_AMOUNT ("contribution",
669 : &role->coin_contribution),
670 5 : GNUNET_PQ_result_spec_allow_null (
671 5 : GNUNET_PQ_result_spec_auto_from_type ("age_commitment_hash",
672 : &role->h_age_commitment),
673 : &role->no_age_commitment),
674 5 : GNUNET_PQ_result_spec_uint64 ("reserve_open_deposit_uuid",
675 : &serial_id),
676 : GNUNET_PQ_result_spec_end
677 : };
678 :
679 5 : if (GNUNET_OK !=
680 5 : GNUNET_PQ_extract_result (result,
681 : rs,
682 : i))
683 : {
684 0 : GNUNET_break (0);
685 0 : GNUNET_free (role);
686 0 : chc->failed = true;
687 0 : return;
688 : }
689 : }
690 5 : tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
691 5 : tl->next = chc->head;
692 5 : tl->type = TALER_EXCHANGEDB_TT_RESERVE_OPEN;
693 5 : tl->details.reserve_open = role;
694 5 : tl->serial_id = serial_id;
695 5 : tl->coin_history_id = chc->chid;
696 5 : chc->head = tl;
697 : }
698 : }
699 :
700 :
701 : /**
702 : * Work we need to do.
703 : */
704 : struct Work
705 : {
706 : /**
707 : * Name of the table.
708 : */
709 : const char *table;
710 :
711 : /**
712 : * SQL prepared statement name.
713 : */
714 : const char *statement;
715 :
716 : /**
717 : * Function to call to handle the result(s).
718 : */
719 : GNUNET_PQ_PostgresResultHandler cb;
720 : };
721 :
722 :
723 : /**
724 : * We found a coin history entry. Lookup details
725 : * from the respective table and store in @a cls.
726 : *
727 : * @param[in,out] cls a `struct CoinHistoryContext`
728 : * @param result a coin history entry result set
729 : * @param num_results total number of results in @a results
730 : */
731 : static void
732 14 : handle_history_entry (void *cls,
733 : PGresult *result,
734 : unsigned int num_results)
735 : {
736 14 : struct CoinHistoryContext *chc = cls;
737 14 : struct TALER_EXCHANGEDB_PostgresContext *pg = chc->pg;
738 : static const struct Work work[] = {
739 : [TALER_EXCHANGEDB_TT_DEPOSIT] =
740 : { "coin_deposits",
741 : "get_coin_transactions_deposit_with_coin_pub",
742 : &add_coin_deposit },
743 : [TALER_EXCHANGEDB_TT_MELT] =
744 : { "refresh",
745 : "get_coin_transactions_refresh_by_coin",
746 : &add_coin_melt },
747 : [TALER_EXCHANGEDB_TT_PURSE_DEPOSIT] =
748 : { "purse_deposits",
749 : "get_coin_transactions_purse_deposit_by_coin_pub",
750 : &add_coin_purse_deposit },
751 : [TALER_EXCHANGEDB_TT_PURSE_REFUND] =
752 : { "purse_decision",
753 : "get_coin_transactions_purse_decision_by_coin_pub",
754 : &add_coin_purse_decision },
755 : [TALER_EXCHANGEDB_TT_REFUND] =
756 : { "refunds",
757 : "get_coin_transactions_refunds_by_coin",
758 : &add_coin_refund },
759 : [TALER_EXCHANGEDB_TT_RECOUP_WITHDRAW] =
760 : { "recoup",
761 : "get_coin_transactions_recoup_by_coin",
762 : &add_coin_recoup },
763 : [TALER_EXCHANGEDB_TT_RECOUP_REFRESH] =
764 : { "recoup_refresh::NEW",
765 : "get_coin_transactions_recoup_by_refreshed_coin",
766 : &add_coin_recoup_refresh },
767 : [TALER_EXCHANGEDB_TT_RECOUP_REFRESH_RECEIVER] =
768 : { "recoup_refresh::OLD",
769 : "get_coin_transactions_recoup_by_old_coin",
770 : &add_old_coin_recoup },
771 : [TALER_EXCHANGEDB_TT_RESERVE_OPEN] =
772 : { "reserves_open_deposits",
773 : "get_coin_transactions_reserve_open_by_coin",
774 : &add_coin_reserve_open },
775 : { NULL, NULL, NULL }
776 : };
777 : char *table_name;
778 : uint64_t serial_id;
779 14 : struct GNUNET_PQ_ResultSpec rs[] = {
780 14 : GNUNET_PQ_result_spec_string ("table_name",
781 : &table_name),
782 14 : GNUNET_PQ_result_spec_uint64 ("serial_id",
783 : &serial_id),
784 14 : GNUNET_PQ_result_spec_uint64 ("coin_history_serial_id",
785 : &chc->chid),
786 : GNUNET_PQ_result_spec_end
787 : };
788 14 : struct GNUNET_PQ_QueryParam params[] = {
789 14 : GNUNET_PQ_query_param_auto_from_type (chc->coin_pub),
790 14 : GNUNET_PQ_query_param_uint64 (&serial_id),
791 : GNUNET_PQ_query_param_end
792 : };
793 :
794 52 : for (unsigned int i = 0; i<num_results; i++)
795 : {
796 : enum GNUNET_DB_QueryStatus qs;
797 38 : bool found = false;
798 :
799 38 : if (GNUNET_OK !=
800 38 : GNUNET_PQ_extract_result (result,
801 : rs,
802 : i))
803 : {
804 0 : GNUNET_break (0);
805 0 : chc->failed = true;
806 0 : return;
807 : }
808 :
809 38 : for (unsigned int s = 0;
810 155 : NULL != work[s].statement;
811 117 : s++)
812 : {
813 272 : if (0 != strcmp (table_name,
814 155 : work[s].table))
815 117 : continue;
816 38 : found = true;
817 38 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
818 38 : work[s].statement,
819 : params,
820 38 : work[s].cb,
821 : chc);
822 38 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
823 : "Coin %s had %d transactions at %llu in table %s\n",
824 : TALER_B2S (chc->coin_pub),
825 : (int) qs,
826 : (unsigned long long) serial_id,
827 : table_name);
828 38 : if (0 > qs)
829 0 : chc->failed = true;
830 38 : break;
831 : }
832 38 : if (! found)
833 : {
834 0 : GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
835 : "Coin history includes unsupported table `%s`\n",
836 : table_name);
837 0 : chc->failed = true;
838 : }
839 38 : GNUNET_PQ_cleanup_result (rs);
840 38 : if (chc->failed)
841 0 : break;
842 : }
843 : }
844 :
845 :
846 : enum GNUNET_DB_QueryStatus
847 17 : TALER_EXCHANGEDB_get_coin_transactions (
848 : struct TALER_EXCHANGEDB_PostgresContext *pg,
849 : bool begin_transaction,
850 : const struct TALER_CoinSpendPublicKeyP *coin_pub,
851 : uint64_t start_off,
852 : uint64_t etag_in,
853 : uint64_t *etag_out,
854 : struct TALER_Amount *balance,
855 : struct TALER_DenominationHashP *h_denom_pub,
856 : struct TALER_EXCHANGEDB_TransactionList **tlp)
857 : {
858 17 : struct GNUNET_PQ_QueryParam params[] = {
859 17 : GNUNET_PQ_query_param_auto_from_type (coin_pub),
860 : GNUNET_PQ_query_param_end
861 : };
862 17 : struct GNUNET_PQ_QueryParam lparams[] = {
863 17 : GNUNET_PQ_query_param_auto_from_type (coin_pub),
864 17 : GNUNET_PQ_query_param_uint64 (&start_off),
865 : GNUNET_PQ_query_param_end
866 : };
867 17 : struct CoinHistoryContext chc = {
868 : .head = NULL,
869 : .coin_pub = coin_pub,
870 : .pg = pg
871 : };
872 :
873 17 : *tlp = NULL;
874 17 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
875 : "Getting transactions for coin %s\n",
876 : TALER_B2S (coin_pub));
877 17 : PREPARE (pg,
878 : "get_coin_transactions_history_etag_balance",
879 : "SELECT"
880 : " ch.coin_history_serial_id"
881 : ",kc.remaining"
882 : ",denom.denom_pub_hash"
883 : " FROM coin_history ch"
884 : " JOIN known_coins kc"
885 : " USING (coin_pub)"
886 : " JOIN denominations denom"
887 : " USING (denominations_serial)"
888 : " WHERE coin_pub=$1"
889 : " ORDER BY coin_history_serial_id DESC"
890 : " LIMIT 1;");
891 17 : PREPARE (pg,
892 : "get_coin_transactions_history",
893 : "SELECT"
894 : " table_name"
895 : ",serial_id"
896 : ",coin_history_serial_id"
897 : " FROM coin_history"
898 : " WHERE coin_pub=$1"
899 : " AND coin_history_serial_id > $2"
900 : " ORDER BY coin_history_serial_id DESC;");
901 17 : PREPARE (pg,
902 : "get_coin_transactions_deposit_with_coin_pub",
903 : "SELECT"
904 : " cdep.amount_with_fee"
905 : ",denoms.fee_deposit"
906 : ",denoms.denom_pub_hash"
907 : ",kc.age_commitment_hash"
908 : ",bdep.wallet_timestamp"
909 : ",bdep.refund_deadline"
910 : ",bdep.wire_deadline"
911 : ",bdep.merchant_pub"
912 : ",bdep.h_contract_terms"
913 : ",bdep.wallet_data_hash"
914 : ",bdep.wire_salt"
915 : ",wt.payto_uri"
916 : ",cdep.coin_sig"
917 : ",cdep.coin_deposit_serial_id"
918 : ",bdep.done"
919 : " FROM coin_deposits cdep"
920 : " JOIN batch_deposits bdep"
921 : " USING (batch_deposit_serial_id)"
922 : " JOIN wire_targets wt"
923 : " USING (wire_target_h_payto)"
924 : " JOIN known_coins kc"
925 : " ON (kc.coin_pub = cdep.coin_pub)"
926 : " JOIN denominations denoms"
927 : " USING (denominations_serial)"
928 : " WHERE cdep.coin_pub=$1"
929 : " AND cdep.coin_deposit_serial_id=$2;");
930 17 : PREPARE (pg,
931 : "get_coin_transactions_refresh_by_coin",
932 : "SELECT"
933 : " rc"
934 : ",refresh_seed"
935 : ",blinding_seed"
936 : ",old_coin_sig"
937 : ",amount_with_fee"
938 : ",denoms.denom_pub_hash"
939 : ",denoms.fee_refresh"
940 : ",kc.age_commitment_hash"
941 : ",refresh_id"
942 : ",ARRAY("
943 : " SELECT fresh_denoms.denom_pub_hash"
944 : " FROM unnest(refresh.denom_serials) WITH ORDINALITY"
945 : " AS fresh(denom_serial, coin_index)"
946 : " LEFT JOIN denominations fresh_denoms"
947 : " ON fresh_denoms.denominations_serial=fresh.denom_serial"
948 : " ORDER BY fresh.coin_index"
949 : ") AS denom_pub_hashes"
950 : " FROM refresh"
951 : " JOIN known_coins kc"
952 : " ON (refresh.old_coin_pub = kc.coin_pub)"
953 : " JOIN denominations denoms"
954 : " USING (denominations_serial)"
955 : " WHERE old_coin_pub=$1"
956 : " AND refresh_id=$2;");
957 17 : PREPARE (pg,
958 : "get_coin_transactions_purse_deposit_by_coin_pub",
959 : "SELECT"
960 : " partner_base_url"
961 : ",pd.amount_with_fee"
962 : ",denoms.fee_deposit"
963 : ",denoms.denom_pub_hash"
964 : ",pd.purse_pub"
965 : ",kc.age_commitment_hash"
966 : ",pd.coin_sig"
967 : ",pd.purse_deposit_serial_id"
968 : ",pdes.refunded"
969 : " FROM purse_deposits pd"
970 : " LEFT JOIN partners"
971 : " USING (partner_serial_id)"
972 : " JOIN purse_requests pr"
973 : " USING (purse_pub)"
974 : " LEFT JOIN purse_decision pdes"
975 : " USING (purse_pub)"
976 : " JOIN known_coins kc"
977 : " ON (pd.coin_pub = kc.coin_pub)"
978 : " JOIN denominations denoms"
979 : " USING (denominations_serial)"
980 : " WHERE pd.purse_deposit_serial_id=$2"
981 : " AND pd.coin_pub=$1;");
982 17 : PREPARE (pg,
983 : "get_coin_transactions_purse_decision_by_coin_pub",
984 : "SELECT"
985 : " pdes.purse_pub"
986 : ",pd.amount_with_fee"
987 : ",denom.fee_refund"
988 : ",pdes.purse_decision_serial_id"
989 : " FROM purse_decision pdes"
990 : " JOIN purse_deposits pd"
991 : " USING (purse_pub)"
992 : " JOIN known_coins kc"
993 : " ON (pd.coin_pub = kc.coin_pub)"
994 : " JOIN denominations denom"
995 : " USING (denominations_serial)"
996 : " WHERE pd.coin_pub=$1"
997 : " AND pdes.purse_decision_serial_id=$2"
998 : " AND pdes.refunded;");
999 17 : PREPARE (pg,
1000 : "get_coin_transactions_refunds_by_coin",
1001 : "SELECT"
1002 : " bdep.merchant_pub"
1003 : ",ref.merchant_sig"
1004 : ",bdep.h_contract_terms"
1005 : ",ref.rtransaction_id"
1006 : ",ref.amount_with_fee"
1007 : ",denom.fee_refund"
1008 : ",ref.refund_serial_id"
1009 : " FROM refunds ref"
1010 : " JOIN coin_deposits cdep"
1011 : " ON (ref.coin_pub = cdep.coin_pub AND ref.batch_deposit_serial_id = cdep.batch_deposit_serial_id)"
1012 : " JOIN batch_deposits bdep"
1013 : " ON (ref.batch_deposit_serial_id = bdep.batch_deposit_serial_id)"
1014 : " JOIN known_coins kc"
1015 : " ON (ref.coin_pub = kc.coin_pub)"
1016 : " JOIN denominations denom"
1017 : " USING (denominations_serial)"
1018 : " WHERE ref.coin_pub=$1"
1019 : " AND ref.refund_serial_id=$2;");
1020 17 : PREPARE (pg,
1021 : "get_coin_transactions_recoup_by_old_coin",
1022 : "SELECT"
1023 : " coins.coin_pub"
1024 : ",rr.coin_sig"
1025 : ",rr.coin_blind"
1026 : ",rr.amount"
1027 : ",rr.recoup_timestamp"
1028 : ",denoms.denom_pub_hash"
1029 : ",coins.denom_sig"
1030 : ",rr.recoup_refresh_uuid"
1031 : " FROM recoup_refresh rr"
1032 : " JOIN known_coins coins"
1033 : " USING (coin_pub)"
1034 : " JOIN denominations denoms"
1035 : " USING (denominations_serial)"
1036 : " WHERE recoup_refresh_uuid=$2"
1037 : " AND refresh_id IN"
1038 : " (SELECT refresh_id"
1039 : " FROM refresh"
1040 : " WHERE refresh.old_coin_pub=$1);");
1041 17 : PREPARE (pg,
1042 : "get_coin_transactions_recoup_by_coin",
1043 : "SELECT"
1044 : " res.reserve_pub"
1045 : ",denoms.denom_pub_hash"
1046 : ",rcp.coin_sig"
1047 : ",rcp.coin_blind"
1048 : ",rcp.amount"
1049 : ",rcp.recoup_timestamp"
1050 : ",rcp.recoup_uuid"
1051 : " FROM recoup rcp"
1052 : " JOIN withdraw ro"
1053 : " USING (withdraw_id)"
1054 : " JOIN reserves res"
1055 : " USING (reserve_pub)"
1056 : " JOIN known_coins coins"
1057 : " USING (coin_pub)"
1058 : " JOIN denominations denoms"
1059 : " ON (denoms.denominations_serial = coins.denominations_serial)"
1060 : " WHERE rcp.recoup_uuid=$2"
1061 : " AND coins.coin_pub=$1;");
1062 : /* Used to obtain recoup transactions
1063 : for a refreshed coin */
1064 17 : PREPARE (pg,
1065 : "get_coin_transactions_recoup_by_refreshed_coin",
1066 : "SELECT"
1067 : " old_coins.coin_pub AS old_coin_pub"
1068 : ",rr.coin_sig"
1069 : ",rr.coin_blind"
1070 : ",rr.amount"
1071 : ",rr.recoup_timestamp"
1072 : ",denoms.denom_pub_hash"
1073 : ",coins.denom_sig"
1074 : ",recoup_refresh_uuid"
1075 : " FROM recoup_refresh rr"
1076 : " JOIN refresh rfc"
1077 : " ON (rr.refresh_id = rfc.refresh_id)"
1078 : " JOIN known_coins old_coins"
1079 : " ON (rfc.old_coin_pub = old_coins.coin_pub)"
1080 : " JOIN known_coins coins"
1081 : " ON (rr.coin_pub = coins.coin_pub)"
1082 : " JOIN denominations denoms"
1083 : " ON (denoms.denominations_serial = coins.denominations_serial)"
1084 : " WHERE rr.recoup_refresh_uuid=$2"
1085 : " AND coins.coin_pub=$1;");
1086 17 : PREPARE (pg,
1087 : "get_coin_transactions_reserve_open_by_coin",
1088 : "SELECT"
1089 : " rod.reserve_open_deposit_uuid"
1090 : ",rod.coin_sig"
1091 : ",rod.reserve_sig"
1092 : ",rod.contribution"
1093 : ",kc.age_commitment_hash"
1094 : " FROM reserves_open_deposits rod"
1095 : " JOIN known_coins kc"
1096 : " ON (rod.coin_pub = kc.coin_pub)"
1097 : " WHERE rod.coin_pub=$1"
1098 : " AND rod.reserve_open_deposit_uuid=$2;");
1099 17 : for (unsigned int i = 0; i<RETRIES; i++)
1100 : {
1101 : enum GNUNET_DB_QueryStatus qs;
1102 : uint64_t end;
1103 17 : struct GNUNET_PQ_ResultSpec rs[] = {
1104 17 : GNUNET_PQ_result_spec_uint64 ("coin_history_serial_id",
1105 : &end),
1106 17 : GNUNET_PQ_result_spec_auto_from_type ("denom_pub_hash",
1107 : h_denom_pub),
1108 17 : TALER_PQ_RESULT_SPEC_AMOUNT ("remaining",
1109 : balance),
1110 : GNUNET_PQ_result_spec_end
1111 : };
1112 :
1113 17 : if (begin_transaction)
1114 : {
1115 16 : if (GNUNET_OK !=
1116 16 : TALER_EXCHANGEDB_start_read_committed (pg,
1117 : "get-coin-transactions"))
1118 : {
1119 0 : GNUNET_break (0);
1120 17 : return GNUNET_DB_STATUS_HARD_ERROR;
1121 : }
1122 : }
1123 : /* First only check the last item, to see if
1124 : we even need to iterate */
1125 17 : qs = GNUNET_PQ_eval_prepared_singleton_select (
1126 : pg->conn,
1127 : "get_coin_transactions_history_etag_balance",
1128 : params,
1129 : rs);
1130 17 : switch (qs)
1131 : {
1132 0 : case GNUNET_DB_STATUS_HARD_ERROR:
1133 0 : if (begin_transaction)
1134 0 : TALER_EXCHANGEDB_rollback (pg);
1135 0 : return qs;
1136 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
1137 0 : if (begin_transaction)
1138 0 : TALER_EXCHANGEDB_rollback (pg);
1139 0 : continue;
1140 2 : case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
1141 2 : if (begin_transaction)
1142 2 : TALER_EXCHANGEDB_rollback (pg);
1143 2 : return qs;
1144 15 : case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
1145 15 : *etag_out = end;
1146 15 : if (end == etag_in)
1147 : {
1148 : /* client is up-to-date, nothing more to do */
1149 1 : if (begin_transaction)
1150 1 : TALER_EXCHANGEDB_rollback (pg);
1151 1 : return qs;
1152 : }
1153 : }
1154 : /* We indeed need to iterate over the history */
1155 14 : GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1156 : "Current ETag for coin %s is %llu\n",
1157 : TALER_B2S (coin_pub),
1158 : (unsigned long long) end);
1159 :
1160 14 : qs = GNUNET_PQ_eval_prepared_multi_select (
1161 : pg->conn,
1162 : "get_coin_transactions_history",
1163 : lparams,
1164 : &handle_history_entry,
1165 : &chc);
1166 14 : switch (qs)
1167 : {
1168 0 : case GNUNET_DB_STATUS_HARD_ERROR:
1169 0 : if (begin_transaction)
1170 0 : TALER_EXCHANGEDB_rollback (pg);
1171 0 : return qs;
1172 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
1173 0 : if (begin_transaction)
1174 0 : TALER_EXCHANGEDB_rollback (pg);
1175 0 : TALER_EXCHANGEDB_free_coin_transaction_list (chc.head);
1176 0 : chc.head = NULL;
1177 0 : continue;
1178 14 : default:
1179 14 : break;
1180 : }
1181 14 : if (chc.failed)
1182 : {
1183 0 : if (begin_transaction)
1184 0 : TALER_EXCHANGEDB_rollback (pg);
1185 0 : TALER_EXCHANGEDB_free_coin_transaction_list (chc.head);
1186 0 : return GNUNET_DB_STATUS_SOFT_ERROR;
1187 : }
1188 14 : if (! begin_transaction)
1189 : {
1190 1 : *tlp = chc.head;
1191 1 : return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
1192 : }
1193 13 : qs = TALER_EXCHANGEDB_commit (pg);
1194 13 : switch (qs)
1195 : {
1196 0 : case GNUNET_DB_STATUS_HARD_ERROR:
1197 0 : TALER_EXCHANGEDB_free_coin_transaction_list (chc.head);
1198 0 : chc.head = NULL;
1199 0 : return qs;
1200 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
1201 0 : TALER_EXCHANGEDB_free_coin_transaction_list (chc.head);
1202 0 : chc.head = NULL;
1203 0 : continue;
1204 13 : case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
1205 : case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
1206 13 : *tlp = chc.head;
1207 13 : return GNUNET_DB_STATUS_SUCCESS_ONE_RESULT;
1208 : }
1209 : }
1210 0 : return GNUNET_DB_STATUS_SOFT_ERROR;
1211 : }
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