Line data Source code
1 : /*
2 : This file is part of TALER
3 : (C) 2022, 2024 Taler Systems SA
4 :
5 : TALER is free software; you can redistribute it and/or modify
6 : it under the terms of the GNU Affero General Public License as
7 : published by the Free Software Foundation; either version 3,
8 : or (at your option) any later version.
9 :
10 : TALER is distributed in the hope that it will be useful, but
11 : WITHOUT ANY WARRANTY; without even the implied warranty of
12 : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 : GNU General Public License for more details.
14 :
15 : You should have received a copy of the GNU General Public
16 : License along with TALER; see the file COPYING. If not,
17 : see <http://www.gnu.org/licenses/>
18 : */
19 :
20 : /**
21 : * @file taler-merchant-httpd_private-patch-templates-ID.c
22 : * @brief implementing PATCH /templates/$ID request handling
23 : * @author Priscilla HUANG
24 : */
25 : #include "platform.h"
26 : #include "taler-merchant-httpd_private-patch-templates-ID.h"
27 : #include "taler-merchant-httpd_helper.h"
28 : #include <taler/taler_json_lib.h>
29 :
30 :
31 : /**
32 : * Determine the cause of the PATCH failure in more detail and report.
33 : *
34 : * @param connection connection to report on
35 : * @param instance_id instance we are processing
36 : * @param template_id ID of the product to patch
37 : * @param tp template details we failed to set
38 : */
39 : static MHD_RESULT
40 2 : determine_cause (struct MHD_Connection *connection,
41 : const char *instance_id,
42 : const char *template_id,
43 : const struct TALER_MERCHANTDB_TemplateDetails *tp)
44 : {
45 : struct TALER_MERCHANTDB_TemplateDetails tpx;
46 : enum GNUNET_DB_QueryStatus qs;
47 :
48 2 : qs = TMH_db->lookup_template (TMH_db->cls,
49 : instance_id,
50 : template_id,
51 : &tpx);
52 2 : switch (qs)
53 : {
54 0 : case GNUNET_DB_STATUS_HARD_ERROR:
55 0 : GNUNET_break (0);
56 0 : return TALER_MHD_reply_with_error (connection,
57 : MHD_HTTP_INTERNAL_SERVER_ERROR,
58 : TALER_EC_GENERIC_DB_FETCH_FAILED,
59 : NULL);
60 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
61 0 : GNUNET_break (0);
62 0 : return TALER_MHD_reply_with_error (connection,
63 : MHD_HTTP_INTERNAL_SERVER_ERROR,
64 : TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE,
65 : "unexpected serialization problem");
66 2 : case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
67 2 : return TALER_MHD_reply_with_error (connection,
68 : MHD_HTTP_NOT_FOUND,
69 : TALER_EC_MERCHANT_GENERIC_TEMPLATE_UNKNOWN,
70 : template_id);
71 0 : case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
72 0 : break; /* do below */
73 : }
74 :
75 : {
76 : enum TALER_ErrorCode ec;
77 :
78 0 : ec = TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE;
79 0 : TALER_MERCHANTDB_template_details_free (&tpx);
80 0 : GNUNET_break (TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE != ec);
81 0 : return TALER_MHD_reply_with_error (connection,
82 : MHD_HTTP_CONFLICT,
83 : ec,
84 : NULL);
85 : }
86 : }
87 :
88 :
89 : /**
90 : * PATCH configuration of an existing instance, given its configuration.
91 : *
92 : * @param rh context of the handler
93 : * @param connection the MHD connection to handle
94 : * @param[in,out] hc context with further information about the request
95 : * @return MHD result code
96 : */
97 : MHD_RESULT
98 4 : TMH_private_patch_templates_ID (const struct TMH_RequestHandler *rh,
99 : struct MHD_Connection *connection,
100 : struct TMH_HandlerContext *hc)
101 : {
102 4 : struct TMH_MerchantInstance *mi = hc->instance;
103 4 : const char *template_id = hc->infix;
104 4 : struct TALER_MERCHANTDB_TemplateDetails tp = {0};
105 : enum GNUNET_DB_QueryStatus qs;
106 : struct GNUNET_JSON_Specification spec[] = {
107 4 : GNUNET_JSON_spec_string ("template_description",
108 : (const char **) &tp.template_description),
109 4 : GNUNET_JSON_spec_mark_optional (
110 : GNUNET_JSON_spec_string ("otp_id",
111 : (const char **) &tp.otp_id),
112 : NULL),
113 4 : GNUNET_JSON_spec_json ("template_contract",
114 : &tp.template_contract),
115 4 : GNUNET_JSON_spec_mark_optional (
116 : GNUNET_JSON_spec_json ("editable_defaults",
117 : &tp.editable_defaults),
118 : NULL),
119 4 : GNUNET_JSON_spec_end ()
120 : };
121 :
122 4 : GNUNET_assert (NULL != mi);
123 4 : GNUNET_assert (NULL != template_id);
124 : {
125 : enum GNUNET_GenericReturnValue res;
126 :
127 4 : res = TALER_MHD_parse_json_data (connection,
128 4 : hc->request_body,
129 : spec);
130 4 : if (GNUNET_OK != res)
131 : return (GNUNET_NO == res)
132 : ? MHD_YES
133 0 : : MHD_NO;
134 : }
135 :
136 4 : if (! TMH_template_contract_valid (tp.template_contract))
137 : {
138 0 : GNUNET_break_op (0);
139 0 : GNUNET_JSON_parse_free (spec);
140 0 : return TALER_MHD_reply_with_error (connection,
141 : MHD_HTTP_BAD_REQUEST,
142 : TALER_EC_GENERIC_PARAMETER_MALFORMED,
143 : "template_contract");
144 : }
145 4 : if (NULL != tp.editable_defaults)
146 : {
147 : const char *key;
148 : json_t *val;
149 :
150 0 : json_object_foreach (tp.editable_defaults, key, val)
151 : {
152 0 : if (NULL !=
153 0 : json_object_get (tp.template_contract,
154 : key))
155 : {
156 : char *msg;
157 : MHD_RESULT ret;
158 :
159 0 : GNUNET_break_op (0);
160 0 : GNUNET_asprintf (&msg,
161 : "editable_defaults::%s conflicts with template_contract",
162 : key);
163 0 : GNUNET_JSON_parse_free (spec);
164 0 : ret = TALER_MHD_reply_with_error (connection,
165 : MHD_HTTP_BAD_REQUEST,
166 : TALER_EC_GENERIC_PARAMETER_MALFORMED,
167 : msg);
168 0 : GNUNET_free (msg);
169 0 : return ret;
170 : }
171 : }
172 : }
173 :
174 4 : qs = TMH_db->update_template (TMH_db->cls,
175 4 : mi->settings.id,
176 : template_id,
177 : &tp);
178 : {
179 4 : MHD_RESULT ret = MHD_NO;
180 :
181 4 : switch (qs)
182 : {
183 0 : case GNUNET_DB_STATUS_HARD_ERROR:
184 0 : GNUNET_break (0);
185 0 : ret = TALER_MHD_reply_with_error (connection,
186 : MHD_HTTP_INTERNAL_SERVER_ERROR,
187 : TALER_EC_GENERIC_DB_STORE_FAILED,
188 : NULL);
189 0 : break;
190 0 : case GNUNET_DB_STATUS_SOFT_ERROR:
191 0 : GNUNET_break (0);
192 0 : ret = TALER_MHD_reply_with_error (connection,
193 : MHD_HTTP_INTERNAL_SERVER_ERROR,
194 : TALER_EC_GENERIC_INTERNAL_INVARIANT_FAILURE,
195 : "unexpected serialization problem");
196 0 : break;
197 2 : case GNUNET_DB_STATUS_SUCCESS_NO_RESULTS:
198 2 : ret = determine_cause (connection,
199 2 : mi->settings.id,
200 : template_id,
201 : &tp);
202 2 : break;
203 2 : case GNUNET_DB_STATUS_SUCCESS_ONE_RESULT:
204 2 : ret = TALER_MHD_reply_static (connection,
205 : MHD_HTTP_NO_CONTENT,
206 : NULL,
207 : NULL,
208 : 0);
209 2 : break;
210 : }
211 4 : GNUNET_JSON_parse_free (spec);
212 4 : return ret;
213 : }
214 : }
215 :
216 :
217 : /* end of taler-merchant-httpd_private-patch-templates-ID.c */
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