summaryrefslogtreecommitdiff
path: root/src/exchange/taler-exchange-httpd_wire.c
blob: 0d1e3f3f1a75e7fd842b800393d42fc93da10308 (plain)
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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
/*
  This file is part of TALER
  Copyright (C) 2015, 2016 GNUnet e.V. and INRIA

  TALER is free software; you can redistribute it and/or modify it under the
  terms of the GNU Affero 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 Affero General Public License for more details.

  You should have received a copy of the GNU Affero General Public License along with
  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
*/
/**
 * @file taler-exchange-httpd_wire.c
 * @brief Handle /wire requests
 * @author Christian Grothoff
 */
#include "platform.h"
#include "taler-exchange-httpd_keystate.h"
#include "taler-exchange-httpd_responses.h"
#include "taler-exchange-httpd_validation.h"
#include "taler-exchange-httpd_wire.h"
#include <jansson.h>

/**
 * Handle a "/wire" request.
 *
 * @param rh context of the handler
 * @param connection the MHD connection to handle
 * @param[in,out] connection_cls the connection's closure (can be updated)
 * @param upload_data upload data
 * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
 * @return MHD result code
  */
int
TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh,
                       struct MHD_Connection *connection,
                       void **connection_cls,
                       const char *upload_data,
                       size_t *upload_data_size)
{
  struct TALER_ExchangeWireSupportMethodsPS wsm;
  struct TALER_ExchangePublicKeyP pub;
  struct TALER_ExchangeSignatureP sig;
  json_t *methods;

  wsm.purpose.size = htonl (sizeof (wsm));
  wsm.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_WIRE_TYPES);
  methods = TMH_VALIDATION_get_methods (&wsm.h_wire_types);
  TMH_KS_sign (&wsm.purpose,
               &pub,
               &sig);
  return TMH_RESPONSE_reply_json_pack (connection,
                                       MHD_HTTP_OK,
                                       "{s:o, s:o, s:o}",
                                       "methods", methods,
                                       "sig", TALER_json_from_data (&sig,
                                                                    sizeof (sig)),
                                       "pub", TALER_json_from_data (&pub,
                                                                    sizeof (pub)));
}


/**
 * Handle a "/wire/test" request.
 *
 * @param rh context of the handler
 * @param connection the MHD connection to handle
 * @param[in,out] connection_cls the connection's closure (can be updated)
 * @param upload_data upload data
 * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
 * @return MHD result code
 */
int
TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh,
                            struct MHD_Connection *connection,
                            void **connection_cls,
                            const char *upload_data,
                            size_t *upload_data_size)
{
  struct MHD_Response *response;
  int ret;
  char *bank_uri;
  unsigned long long account_number;

  response = MHD_create_response_from_buffer (0, NULL,
                                              MHD_RESPMEM_PERSISTENT);
  if (NULL == response)
  {
    GNUNET_break (0);
    return MHD_NO;
  }
  TMH_RESPONSE_add_global_headers (response);
  if (GNUNET_NO == TMH_VALIDATION_test_method ("test"))
  {
    /* Return 501: not implemented */
    ret = MHD_queue_response (connection,
			      MHD_HTTP_NOT_IMPLEMENTED,
			      response);
    MHD_destroy_response (response);
    return ret;
  }
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_get_value_string (cfg,
					     "wire-test",
					     "BANK_URI",
					     &bank_uri))
  {
    /* oopsie, configuration error */
    MHD_destroy_response (response);
    return TMH_RESPONSE_reply_internal_error (connection,
					      "BANK_URI not configured");
  }
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_get_value_number (cfg,
					     "wire-test",
					     "BANK_ACCOUNT_NUMBER",
					     &account_number))
  {
    /* oopsie, configuration error */
    MHD_destroy_response (response);
    return TMH_RESPONSE_reply_internal_error (connection,
					      "BANK_URI not configured");
  }
  ret = TMH_RESPONSE_reply_json_pack (connection,
                                      MHD_HTTP_OK,
                                      "{s:s, s:I, s:s}",
                                      "type", "test",
                                      "account_number", (json_int_t) account_number,
                                      "bank_uri", bank_uri);
  GNUNET_free (bank_uri);
  return ret;
}


/**
 * Handle a "/wire/sepa" request.
 *
 * @param rh context of the handler
 * @param connection the MHD connection to handle
 * @param[in,out] connection_cls the connection's closure (can be updated)
 * @param upload_data upload data
 * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
 * @return MHD result code
 */
int
TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh,
			    struct MHD_Connection *connection,
			    void **connection_cls,
			    const char *upload_data,
			    size_t *upload_data_size)
{
  struct MHD_Response *response;
  int ret;
  char *sepa_wire_file;
  int fd;
  struct stat sbuf;

  if (GNUNET_NO == TMH_VALIDATION_test_method ("sepa"))
  {
    /* Return 501: not implemented */
    response = MHD_create_response_from_buffer (0, NULL,
                                                MHD_RESPMEM_PERSISTENT);
    if (NULL == response)
    {
      GNUNET_break (0);
      return MHD_NO;
    }
    TMH_RESPONSE_add_global_headers (response);
    ret = MHD_queue_response (connection,
			      MHD_HTTP_NOT_IMPLEMENTED,
			      response);
    MHD_destroy_response (response);
    return ret;
  }
  /* Fetch reply */
  if (GNUNET_OK !=
      GNUNET_CONFIGURATION_get_value_filename (cfg,
                                               "wire-sepa",
                                               "SEPA_RESPONSE_FILE",
                                               &sepa_wire_file))
  {
    return TMH_RESPONSE_reply_internal_error (connection,
					      "SEPA_RESPONSE_FILE not configured");
  }
  fd = open (sepa_wire_file,
	     O_RDONLY);
  if (-1 == fd)
  {
    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
			      "open",
			      sepa_wire_file);
    GNUNET_free (sepa_wire_file);
    return TMH_RESPONSE_reply_internal_error (connection,
					      "Failed to open SEPA_RESPONSE_FILE");
  }
  if (0 != fstat (fd, &sbuf))
  {
    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
			      "fstat",
			      sepa_wire_file);
    (void) close (fd);
    GNUNET_free (sepa_wire_file);
    return TMH_RESPONSE_reply_internal_error (connection,
					      "Failed to open SEPA_RESPONSE_FILE");
  }
  response = MHD_create_response_from_fd ((size_t) sbuf.st_size,
					  fd);
  GNUNET_free (sepa_wire_file);
  if (NULL == response)
  {
    (void) close (fd);
    GNUNET_break (0);
    return MHD_NO;
  }
  TMH_RESPONSE_add_global_headers (response);
  if (NULL != rh->mime_type)
    (void) MHD_add_response_header (response,
                                    MHD_HTTP_HEADER_CONTENT_TYPE,
                                    rh->mime_type);
  ret = MHD_queue_response (connection,
                            rh->response_code,
                            response);
  MHD_destroy_response (response);
  return ret;
}

/* end of taler-exchange-httpd_wire.c */