Line data Source code
1 : /*
2 : This file is part of TALER
3 : Copyright (C) 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 exchangedb/pg_select_kyc_accounts.c
18 : * @brief Implementation of the select_kyc_accounts function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/platform.h"
22 : #include "taler/taler_error_codes.h"
23 : #include "taler/taler_dbevents.h"
24 : #include "taler/taler_pq_lib.h"
25 : #include "pg_select_kyc_accounts.h"
26 : #include "pg_helper.h"
27 :
28 :
29 : /**
30 : * Closure for #handle_aml_result.
31 : */
32 : struct KycAccountResultContext
33 : {
34 : /**
35 : * Function to call on each result.
36 : */
37 : TALER_EXCHANGEDB_AmlAccountListCallback cb;
38 :
39 : /**
40 : * Closure for @e cb.
41 : */
42 : void *cb_cls;
43 :
44 : /**
45 : * Plugin context.
46 : */
47 : struct PostgresClosure *pg;
48 :
49 : /**
50 : * Set to #GNUNET_SYSERR on serious errors.
51 : */
52 : enum GNUNET_GenericReturnValue status;
53 : };
54 :
55 :
56 : /**
57 : * Function to be called with the results of a SELECT statement
58 : * that has returned @a num_results results. Helper function
59 : * for #TEH_PG_select_kyc_accounts().
60 : *
61 : * @param cls closure of type `struct KycAccountResultContext *`
62 : * @param result the postgres result
63 : * @param num_results the number of results in @a result
64 : */
65 : static void
66 0 : handle_kyc_account_result (void *cls,
67 : PGresult *result,
68 : unsigned int num_results)
69 : {
70 0 : struct KycAccountResultContext *ctx = cls;
71 :
72 0 : for (unsigned int i = 0; i<num_results; i++)
73 : {
74 : uint64_t rowid;
75 : struct TALER_NormalizedPaytoHashP h_payto;
76 0 : char *comments = NULL;
77 0 : struct GNUNET_TIME_Timestamp open_time
78 : = GNUNET_TIME_UNIT_FOREVER_TS;
79 0 : struct GNUNET_TIME_Timestamp close_time
80 : = GNUNET_TIME_UNIT_FOREVER_TS;
81 : bool to_investigate;
82 : bool high_risk;
83 : struct TALER_FullPayto payto;
84 0 : struct GNUNET_PQ_ResultSpec rs[] = {
85 0 : GNUNET_PQ_result_spec_uint64 ("kyc_target_serial_id",
86 : &rowid),
87 0 : GNUNET_PQ_result_spec_auto_from_type ("h_payto",
88 : &h_payto),
89 0 : GNUNET_PQ_result_spec_allow_null (
90 : GNUNET_PQ_result_spec_string ("comments",
91 : &comments),
92 : NULL),
93 0 : GNUNET_PQ_result_spec_allow_null (
94 : GNUNET_PQ_result_spec_timestamp ("open_time",
95 : &open_time),
96 : NULL),
97 0 : GNUNET_PQ_result_spec_allow_null (
98 : GNUNET_PQ_result_spec_timestamp ("close_time",
99 : &close_time),
100 : NULL),
101 0 : GNUNET_PQ_result_spec_bool ("to_investigate",
102 : &to_investigate),
103 0 : GNUNET_PQ_result_spec_bool ("high_risk",
104 : &high_risk),
105 0 : GNUNET_PQ_result_spec_string ("payto_uri",
106 : &payto.full_payto),
107 : GNUNET_PQ_result_spec_end
108 : };
109 :
110 0 : if (GNUNET_OK !=
111 0 : GNUNET_PQ_extract_result (result,
112 : rs,
113 : i))
114 : {
115 0 : GNUNET_break (0);
116 0 : ctx->status = GNUNET_SYSERR;
117 0 : return;
118 : }
119 0 : ctx->cb (ctx->cb_cls,
120 : rowid,
121 : &h_payto,
122 : open_time,
123 : close_time,
124 : comments,
125 : high_risk,
126 : to_investigate,
127 : payto);
128 0 : GNUNET_PQ_cleanup_result (rs);
129 : }
130 : }
131 :
132 :
133 : enum GNUNET_DB_QueryStatus
134 0 : TEH_PG_select_kyc_accounts (
135 : void *cls,
136 : enum TALER_EXCHANGE_YesNoAll investigation_only,
137 : enum TALER_EXCHANGE_YesNoAll open_only,
138 : enum TALER_EXCHANGE_YesNoAll high_risk_only,
139 : uint64_t offset,
140 : int64_t limit,
141 : TALER_EXCHANGEDB_AmlAccountListCallback cb,
142 : void *cb_cls)
143 : {
144 0 : struct PostgresClosure *pg = cls;
145 0 : uint64_t ulimit = (limit > 0) ? limit : -limit;
146 0 : struct GNUNET_PQ_QueryParam params[] = {
147 0 : GNUNET_PQ_query_param_uint64 (&offset),
148 0 : GNUNET_PQ_query_param_uint64 (&ulimit),
149 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_ALL ==
150 : investigation_only)),
151 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_YES ==
152 : investigation_only)),
153 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_ALL ==
154 : open_only)),
155 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_YES ==
156 : open_only)),
157 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_ALL ==
158 : high_risk_only)),
159 0 : GNUNET_PQ_query_param_bool ((TALER_EXCHANGE_YNA_YES ==
160 : high_risk_only)),
161 : GNUNET_PQ_query_param_end
162 : };
163 0 : struct KycAccountResultContext ctx = {
164 : .cb = cb,
165 : .cb_cls = cb_cls,
166 : .pg = pg,
167 : .status = GNUNET_OK
168 : };
169 : enum GNUNET_DB_QueryStatus qs;
170 0 : const char *stmt = (limit > 0)
171 : ? "select_kyc_accounts_inc"
172 : : "select_kyc_accounts_dec";
173 :
174 0 : PREPARE (pg,
175 : "select_kyc_accounts_inc",
176 : "SELECT"
177 : " kt.kyc_target_serial_id"
178 : ",kt.h_normalized_payto AS h_payto"
179 : ",kt.open_time"
180 : ",kt.close_time"
181 : ",lo.jproperties ->> 'FILE_NOTE' AS comments"
182 : ",lo.jproperties ->> 'open_date' AS open_time"
183 : ",COALESCE(lo.to_investigate,FALSE) AS to_investigate"
184 : ",COALESCE((lo.jproperties ->> 'HIGH_RISK_CUSTOMER')::bool,FALSE) AS high_risk"
185 : ",wt.payto_uri"
186 : " FROM kyc_targets kt"
187 : " JOIN wire_targets wt"
188 : " ON (wt.h_normalized_payto = kt.h_normalized_payto)"
189 : " LEFT JOIN legitimization_outcomes lo"
190 : " ON (lo.h_payto = kt.h_normalized_payto)"
191 : " WHERE (kyc_target_serial_id > $1)"
192 : // select most recent outcomes only
193 : " AND COALESCE (lo.is_active, TRUE)"
194 : " AND ($3 OR (COALESCE(lo.to_investigate,FALSE) = $4))"
195 : // Account is open if we had an AML outcome
196 : " AND ($5 OR ((lo.outcome_serial_id IS NULL) = $6))"
197 : " AND ($7 OR ((COALESCE((lo.jproperties ->>'high_risk')::bool,FALSE) = $8)))"
198 : " ORDER BY kt.kyc_target_serial_id ASC"
199 : " LIMIT $2");
200 0 : PREPARE (pg,
201 : "select_kyc_accounts_dec",
202 : "SELECT"
203 : " kt.kyc_target_serial_id"
204 : ",kt.h_normalized_payto AS h_payto"
205 : ",kt.open_time"
206 : ",kt.close_time"
207 : ",lo.jproperties ->> 'FILE_NOTE' AS comments"
208 : ",lo.jproperties ->> 'open_date' AS open_time"
209 : ",COALESCE(lo.to_investigate,FALSE) AS to_investigate"
210 : ",COALESCE((lo.jproperties ->> 'HIGH_RISK_CUSTOMER')::bool,FALSE) AS high_risk"
211 : ",wt.payto_uri"
212 : " FROM kyc_targets kt"
213 : " LEFT JOIN legitimization_outcomes lo"
214 : " ON (lo.h_payto = kt.h_normalized_payto)"
215 : " LEFT JOIN LATERAL ("
216 : " SELECT payto_uri"
217 : " FROM wire_targets"
218 : " WHERE h_normalized_payto = kt.h_normalized_payto"
219 : " ORDER BY wire_target_serial_id DESC"
220 : " LIMIT 1"
221 : " ) wt ON true"
222 : " WHERE (kyc_target_serial_id < $1)"
223 : // select most recent outcomes only
224 : " AND COALESCE (lo.is_active, TRUE)"
225 : " AND ($3 OR (COALESCE(lo.to_investigate,FALSE) = $4))"
226 : // Account is open if we had an AML outcome
227 : " AND ($5 OR ((lo.outcome_serial_id IS NULL) = $6))"
228 : " AND ($7 OR ((COALESCE((lo.jproperties ->>'high_risk')::bool,FALSE) = $8)))"
229 : " ORDER BY kt.kyc_target_serial_id DESC"
230 : " LIMIT $2");
231 0 : qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
232 : stmt,
233 : params,
234 : &handle_kyc_account_result,
235 : &ctx);
236 0 : if (GNUNET_OK != ctx.status)
237 0 : return GNUNET_DB_STATUS_HARD_ERROR;
238 0 : return qs;
239 : }
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