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
|
/*
This file is part of TALER
Copyright (C) 2022-2023 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 exchangedb/pg_lookup_wire_transfer.c
* @brief Implementation of the lookup_wire_transfer function for Postgres
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_error_codes.h"
#include "taler_dbevents.h"
#include "taler_pq_lib.h"
#include "pg_lookup_wire_transfer.h"
#include "pg_helper.h"
/**
* Closure for #handle_wt_result.
*/
struct WireTransferResultContext
{
/**
* Function to call on each result.
*/
TALER_EXCHANGEDB_AggregationDataCallback cb;
/**
* Closure for @e cb.
*/
void *cb_cls;
/**
* Plugin context.
*/
struct PostgresClosure *pg;
/**
* Set to #GNUNET_SYSERR on serious errors.
*/
enum GNUNET_GenericReturnValue status;
};
/**
* Function to be called with the results of a SELECT statement
* that has returned @a num_results results. Helper function
* for #TEH_PG_lookup_wire_transfer().
*
* @param cls closure of type `struct WireTransferResultContext *`
* @param result the postgres result
* @param num_results the number of results in @a result
*/
static void
handle_wt_result (void *cls,
PGresult *result,
unsigned int num_results)
{
struct WireTransferResultContext *ctx = cls;
struct PostgresClosure *pg = ctx->pg;
for (unsigned int i = 0; i<num_results; i++)
{
uint64_t rowid;
struct TALER_PrivateContractHashP h_contract_terms;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct TALER_PaytoHashP h_payto;
struct TALER_MerchantPublicKeyP merchant_pub;
struct GNUNET_TIME_Timestamp exec_time;
struct TALER_Amount amount_with_fee;
struct TALER_Amount deposit_fee;
struct TALER_DenominationPublicKey denom_pub;
char *payto_uri;
struct GNUNET_PQ_ResultSpec rs[] = {
GNUNET_PQ_result_spec_uint64 ("aggregation_serial_id",
&rowid),
GNUNET_PQ_result_spec_auto_from_type ("h_contract_terms",
&h_contract_terms),
GNUNET_PQ_result_spec_string ("payto_uri",
&payto_uri),
GNUNET_PQ_result_spec_auto_from_type ("wire_target_h_payto",
&h_payto),
TALER_PQ_result_spec_denom_pub ("denom_pub",
&denom_pub),
GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
&coin_pub),
GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
&merchant_pub),
GNUNET_PQ_result_spec_timestamp ("execution_date",
&exec_time),
TALER_PQ_RESULT_SPEC_AMOUNT ("amount_with_fee",
&amount_with_fee),
TALER_PQ_RESULT_SPEC_AMOUNT ("fee_deposit",
&deposit_fee),
GNUNET_PQ_result_spec_end
};
if (GNUNET_OK !=
GNUNET_PQ_extract_result (result,
rs,
i))
{
GNUNET_break (0);
ctx->status = GNUNET_SYSERR;
return;
}
ctx->cb (ctx->cb_cls,
rowid,
&merchant_pub,
payto_uri,
&h_payto,
exec_time,
&h_contract_terms,
&denom_pub,
&coin_pub,
&amount_with_fee,
&deposit_fee);
GNUNET_PQ_cleanup_result (rs);
}
}
enum GNUNET_DB_QueryStatus
TEH_PG_lookup_wire_transfer (
void *cls,
const struct TALER_WireTransferIdentifierRawP *wtid,
TALER_EXCHANGEDB_AggregationDataCallback cb,
void *cb_cls)
{
struct PostgresClosure *pg = cls;
struct GNUNET_PQ_QueryParam params[] = {
GNUNET_PQ_query_param_auto_from_type (wtid),
GNUNET_PQ_query_param_end
};
struct WireTransferResultContext ctx = {
.cb = cb,
.cb_cls = cb_cls,
.pg = pg,
.status = GNUNET_OK
};
enum GNUNET_DB_QueryStatus qs;
PREPARE (pg,
"lookup_transactions",
"SELECT"
" aggregation_serial_id"
",bdep.h_contract_terms"
",payto_uri"
",wire_targets.wire_target_h_payto"
",kc.coin_pub"
",bdep.merchant_pub"
",wire_out.execution_date"
",cdep.amount_with_fee"
",denom.fee_deposit"
",denom.denom_pub"
" FROM aggregation_tracking"
" JOIN batch_deposits bdep"
" USING (batch_deposit_serial_id)"
" JOIN coin_deposits cdep"
" USING (batch_deposit_serial_id)"
" JOIN wire_targets"
" USING (wire_target_h_payto)"
" JOIN known_coins kc"
" USING (coin_pub)"
" JOIN denominations denom"
" USING (denominations_serial)"
" JOIN wire_out"
" USING (wtid_raw)"
" WHERE wtid_raw=$1;");
qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
"lookup_transactions",
params,
&handle_wt_result,
&ctx);
if (GNUNET_OK != ctx.status)
return GNUNET_DB_STATUS_HARD_ERROR;
return qs;
}
|
