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/iterate_unscreened_kyc_attributes.c
18 : * @brief Implementation of the iterate_unscreened_kyc_attributes function for Postgres
19 : * @author Christian Grothoff
20 : */
21 : #include "taler/taler_pq_lib.h"
22 : #include "exchange-database/iterate_unscreened_kyc_attributes.h"
23 : #include "helper.h"
24 :
25 : /**
26 : * Closure for #get_all_attributes_cb().
27 : */
28 : struct GetAttributesContext
29 : {
30 : /**
31 : * Function to call per result.
32 : */
33 : TALER_EXCHANGEDB_UnscreenedAttributesCallback cb;
34 :
35 : /**
36 : * Closure for @e cb.
37 : */
38 : void *cb_cls;
39 :
40 : /**
41 : * Plugin context.
42 : */
43 : struct TALER_EXCHANGEDB_PostgresContext *pg;
44 :
45 : /**
46 : * Flag set to #GNUNET_OK as long as everything is fine.
47 : */
48 : enum GNUNET_GenericReturnValue status;
49 :
50 : };
51 :
52 : /**
53 : * Invoke the callback for each result.
54 : *
55 : * @param cls a `struct GetAttributesContext *`
56 : * @param result SQL result
57 : * @param num_results number of rows in @a result
58 : */
59 : static void
60 5 : get_attributes_cb (void *cls,
61 : PGresult *result,
62 : unsigned int num_results)
63 : {
64 5 : struct GetAttributesContext *ctx = cls;
65 :
66 8 : for (unsigned int i = 0; i < num_results; i++)
67 : {
68 : uint64_t rowid;
69 : struct GNUNET_TIME_Timestamp collection_time;
70 : struct GNUNET_TIME_Timestamp expiration_time;
71 : struct TALER_NormalizedPaytoHashP h_payto;
72 4 : json_t *properties = NULL;
73 : size_t enc_attributes_size;
74 : void *enc_attributes;
75 : char *provider;
76 4 : struct GNUNET_PQ_ResultSpec rs[] = {
77 4 : GNUNET_PQ_result_spec_string ("provider_name",
78 : &provider),
79 4 : GNUNET_PQ_result_spec_uint64 ("kyc_attributes_serial_id",
80 : &rowid),
81 4 : GNUNET_PQ_result_spec_allow_null (
82 : TALER_PQ_result_spec_json ("jproperties",
83 : &properties),
84 : NULL),
85 4 : GNUNET_PQ_result_spec_timestamp ("collection_time",
86 : &collection_time),
87 4 : GNUNET_PQ_result_spec_timestamp ("expiration_time",
88 : &expiration_time),
89 4 : GNUNET_PQ_result_spec_auto_from_type ("h_payto",
90 : &h_payto),
91 4 : GNUNET_PQ_result_spec_variable_size ("encrypted_attributes",
92 : &enc_attributes,
93 : &enc_attributes_size),
94 : GNUNET_PQ_result_spec_end
95 : };
96 :
97 4 : if (GNUNET_OK !=
98 4 : GNUNET_PQ_extract_result (result,
99 : rs,
100 : i))
101 : {
102 0 : GNUNET_break (0);
103 0 : ctx->status = GNUNET_SYSERR;
104 1 : return;
105 : }
106 : {
107 : bool cont;
108 :
109 4 : cont = ctx->cb (ctx->cb_cls,
110 : rowid,
111 : &h_payto,
112 : provider,
113 : collection_time,
114 : expiration_time,
115 : properties,
116 : enc_attributes_size,
117 : enc_attributes);
118 4 : GNUNET_PQ_cleanup_result (rs);
119 4 : if (! cont)
120 1 : return;
121 : }
122 : }
123 : }
124 :
125 :
126 : enum GNUNET_DB_QueryStatus
127 5 : TALER_EXCHANGEDB_iterate_unscreened_kyc_attributes (
128 : struct TALER_EXCHANGEDB_PostgresContext *pg,
129 : TALER_EXCHANGEDB_UnscreenedAttributesCallback cb,
130 : void *cb_cls)
131 : {
132 5 : struct GNUNET_PQ_QueryParam params[] = {
133 : GNUNET_PQ_query_param_end
134 : };
135 5 : struct GetAttributesContext ctx = {
136 : .cb = cb,
137 : .cb_cls = cb_cls,
138 : .pg = pg,
139 : .status = GNUNET_OK
140 : };
141 : enum GNUNET_DB_QueryStatus qs;
142 :
143 5 : PREPARE (pg,
144 : "iterate_unscreened_kyc_attributes",
145 : "SELECT "
146 : " lp.provider_name"
147 : ",ka.h_payto"
148 : ",ka.kyc_attributes_serial_id"
149 : ",lo.jproperties::TEXT"
150 : ",ka.collection_time"
151 : ",ka.expiration_time"
152 : ",ka.encrypted_attributes"
153 : " FROM kyc_attributes ka"
154 : " JOIN legitimization_processes lp"
155 : " ON (ka.legitimization_serial = lp.legitimization_process_serial_id)"
156 : " LEFT JOIN legitimization_outcomes lo"
157 : " ON (ka.h_payto = lo.h_payto)"
158 : /* **IF** we joined with 'lo', the lo must be active */
159 : " WHERE COALESCE(lo.is_active,TRUE)"
160 : " AND NOT ka.screened"
161 : " ORDER BY ka.kyc_attributes_serial_id ASC"
162 : );
163 5 : qs = GNUNET_PQ_eval_prepared_multi_select (
164 : pg->conn,
165 : "iterate_unscreened_kyc_attributes",
166 : params,
167 : &get_attributes_cb,
168 : &ctx);
169 5 : if (GNUNET_OK != ctx.status)
170 0 : return GNUNET_DB_STATUS_HARD_ERROR;
171 5 : return qs;
172 : }
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