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_all_kyc_attributes.c
18 : * @brief Implementation of the select_all_kyc_attributes 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_all_kyc_attributes.h"
26 : #include "pg_helper.h"
27 :
28 : /**
29 : * Closure for #get_all_attributes_cb().
30 : */
31 : struct GetAttributesContext
32 : {
33 : /**
34 : * Function to call per result.
35 : */
36 : TALER_EXCHANGEDB_AllAttributesCallback cb;
37 :
38 : /**
39 : * Closure for @e cb.
40 : */
41 : void *cb_cls;
42 :
43 : /**
44 : * Plugin context.
45 : */
46 : struct PostgresClosure *pg;
47 :
48 : /**
49 : * Flag set to #GNUNET_OK as long as everything is fine.
50 : */
51 : enum GNUNET_GenericReturnValue status;
52 :
53 : };
54 :
55 : /**
56 : * Invoke the callback for each result.
57 : *
58 : * @param cls a `struct GetAttributesContext *`
59 : * @param result SQL result
60 : * @param num_results number of rows in @a result
61 : */
62 : static void
63 0 : get_attributes_cb (void *cls,
64 : PGresult *result,
65 : unsigned int num_results)
66 : {
67 0 : struct GetAttributesContext *ctx = cls;
68 :
69 0 : for (unsigned int i = 0; i < num_results; i++)
70 : {
71 : uint64_t rowid;
72 : struct GNUNET_TIME_Timestamp collection_time;
73 : struct GNUNET_TIME_Timestamp expiration_time;
74 : struct TALER_NormalizedPaytoHashP h_payto;
75 0 : json_t *properties = NULL;
76 : size_t enc_attributes_size;
77 : void *enc_attributes;
78 : char *provider;
79 0 : struct GNUNET_PQ_ResultSpec rs[] = {
80 0 : GNUNET_PQ_result_spec_string ("provider_name",
81 : &provider),
82 0 : GNUNET_PQ_result_spec_uint64 ("kyc_attributes_serial_id",
83 : &rowid),
84 0 : GNUNET_PQ_result_spec_allow_null (
85 : TALER_PQ_result_spec_json ("jproperties",
86 : &properties),
87 : NULL),
88 0 : GNUNET_PQ_result_spec_timestamp ("collection_time",
89 : &collection_time),
90 0 : GNUNET_PQ_result_spec_timestamp ("expiration_time",
91 : &expiration_time),
92 0 : GNUNET_PQ_result_spec_auto_from_type ("h_payto",
93 : &h_payto),
94 0 : GNUNET_PQ_result_spec_variable_size ("encrypted_attributes",
95 : &enc_attributes,
96 : &enc_attributes_size),
97 : GNUNET_PQ_result_spec_end
98 : };
99 :
100 0 : if (GNUNET_OK !=
101 0 : GNUNET_PQ_extract_result (result,
102 : rs,
103 : i))
104 : {
105 0 : GNUNET_break (0);
106 0 : ctx->status = GNUNET_SYSERR;
107 0 : return;
108 : }
109 0 : 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 0 : GNUNET_PQ_cleanup_result (rs);
119 : }
120 : }
121 :
122 :
123 : enum GNUNET_DB_QueryStatus
124 0 : TEH_PG_select_all_kyc_attributes (
125 : void *cls,
126 : uint64_t min_row_id,
127 : TALER_EXCHANGEDB_AllAttributesCallback cb,
128 : void *cb_cls)
129 : {
130 0 : struct PostgresClosure *pg = cls;
131 0 : struct GNUNET_PQ_QueryParam params[] = {
132 0 : GNUNET_PQ_query_param_uint64 (&min_row_id),
133 : GNUNET_PQ_query_param_end
134 : };
135 0 : 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 0 : PREPARE (pg,
144 : "select_all_kyc_attributes",
145 : "SELECT "
146 : " lp.provider_name"
147 : ",ka.h_payto"
148 : ",ka.kyc_attributes_serial_id"
149 : ",lo.jproperties"
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 kyc_attributes_serial_id > $1"
161 : " ORDER BY kyc_attributes_serial_id ASC"
162 : );
163 0 : qs = GNUNET_PQ_eval_prepared_multi_select (
164 : pg->conn,
165 : "select_all_kyc_attributes",
166 : params,
167 : &get_attributes_cb,
168 : &ctx);
169 0 : if (GNUNET_OK != ctx.status)
170 0 : return GNUNET_DB_STATUS_HARD_ERROR;
171 0 : return qs;
172 : }
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