diff options
Diffstat (limited to 'src/bank/mb_parse.c')
| -rw-r--r-- | src/bank/mb_parse.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/bank/mb_parse.c b/src/bank/mb_parse.c new file mode 100644 index 00000000..c05ea133 --- /dev/null +++ b/src/bank/mb_parse.c @@ -0,0 +1,218 @@ +/* + This file is part of Taler + Copyright (C) 2018-2023 Taler Systems SA + + Taler is free software; you can redistribute it and/or modify it under the + terms of the GNU 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 General Public License for more details. + + You should have received a copy of the GNU General Public License along with + Taler; see the file COPYING. If not, see + <http://www.gnu.org/licenses/> +*/ +/** + * @file bank/mb_parse.c + * @brief Convenience function to parse authentication configuration + * @author Christian Grothoff + */ +#include "platform.h" +#include "taler_merchant_bank_lib.h" +#include <gnunet/gnunet_json_lib.h> + + +/** + * Names of authentication methods available. + */ +static const struct +{ + const char *m; + enum TALER_MERCHANT_BANK_AuthenticationMethod e; +} methods[] = { + { "NONE", TALER_MERCHANT_BANK_AUTH_NONE }, + { "BASIC", TALER_MERCHANT_BANK_AUTH_BASIC }, + { NULL, TALER_MERCHANT_BANK_AUTH_NONE } +}; + + +enum GNUNET_GenericReturnValue +TALER_MERCHANT_BANK_auth_parse_cfg ( + const struct GNUNET_CONFIGURATION_Handle *cfg, + const char *section, + struct TALER_MERCHANT_BANK_AuthenticationData *auth) +{ + char *method; + + if (GNUNET_OK != + GNUNET_CONFIGURATION_get_value_string (cfg, + section, + "WIRE_GATEWAY_URL", + &auth->wire_gateway_url)) + { + GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, + section, + "WIRE_GATEWAY_URL"); + return GNUNET_SYSERR; + } + + if (GNUNET_OK != + GNUNET_CONFIGURATION_get_value_string (cfg, + section, + "WIRE_GATEWAY_AUTH_METHOD", + &method)) + { + GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, + section, + "WIRE_GATEWAY_AUTH_METHOD"); + GNUNET_free (auth->wire_gateway_url); + return GNUNET_SYSERR; + } + for (unsigned int i = 0; NULL != methods[i].m; i++) + { + if (0 == strcasecmp (method, + methods[i].m)) + { + switch (methods[i].e) + { + case TALER_MERCHANT_BANK_AUTH_NONE: + auth->method = TALER_MERCHANT_BANK_AUTH_NONE; + GNUNET_free (method); + return GNUNET_OK; + case TALER_MERCHANT_BANK_AUTH_BASIC: + if (GNUNET_OK != + GNUNET_CONFIGURATION_get_value_string (cfg, + section, + "USERNAME", + &auth->details.basic.username)) + { + GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, + section, + "USERNAME"); + GNUNET_free (method); + GNUNET_free (auth->wire_gateway_url); + return GNUNET_SYSERR; + } + if (GNUNET_OK != + GNUNET_CONFIGURATION_get_value_string (cfg, + section, + "PASSWORD", + &auth->details.basic.password)) + { + GNUNET_free (auth->details.basic.username); + auth->details.basic.username = NULL; + GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, + section, + "PASSWORD"); + GNUNET_free (method); + GNUNET_free (auth->wire_gateway_url); + return GNUNET_SYSERR; + } + auth->method = TALER_MERCHANT_BANK_AUTH_BASIC; + GNUNET_free (method); + return GNUNET_OK; + } + } + } + GNUNET_free (method); + return GNUNET_SYSERR; +} + + +enum GNUNET_GenericReturnValue +TALER_MERCHANT_BANK_auth_parse_json ( + const json_t *cred, + const char *backend_url, + struct TALER_MERCHANT_BANK_AuthenticationData *auth) +{ + const char *method; + + if (NULL == backend_url) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + if ( (0 == strlen (backend_url)) || + ('/' != backend_url[strlen (backend_url) - 1]) ) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + auth->wire_gateway_url = GNUNET_strdup (backend_url); + method = json_string_value (json_object_get (cred, + "type")); + if (NULL == method) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + for (unsigned int i = 0; NULL != methods[i].m; i++) + { + if (0 == strcasecmp (method, + methods[i].m)) + { + switch (methods[i].e) + { + case TALER_MERCHANT_BANK_AUTH_NONE: + auth->method = TALER_MERCHANT_BANK_AUTH_NONE; + return GNUNET_OK; + case TALER_MERCHANT_BANK_AUTH_BASIC: + { + const char *username; + const char *password; + struct GNUNET_JSON_Specification spec[] = { + GNUNET_JSON_spec_string ("username", + &username), + GNUNET_JSON_spec_string ("password", + &password), + GNUNET_JSON_spec_end () + }; + enum GNUNET_GenericReturnValue res; + const char *err; + unsigned int eline; + + res = GNUNET_JSON_parse (cred, + spec, + &err, + &eline); + if (GNUNET_OK != res) + { + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Credentials malformed: %s (%u)\n", + err, + eline); + GNUNET_free (auth->wire_gateway_url); + return GNUNET_SYSERR; + } + auth->details.basic.username = GNUNET_strdup (username); + auth->details.basic.password = GNUNET_strdup (password); + } + auth->method = TALER_MERCHANT_BANK_AUTH_BASIC; + return GNUNET_OK; + } + } + } + return GNUNET_SYSERR; +} + + +void +TALER_MERCHANT_BANK_auth_free ( + struct TALER_MERCHANT_BANK_AuthenticationData *auth) +{ + switch (auth->method) + { + case TALER_MERCHANT_BANK_AUTH_NONE: + break; + case TALER_MERCHANT_BANK_AUTH_BASIC: + GNUNET_free (auth->details.basic.username); + GNUNET_free (auth->details.basic.password); + break; + } + GNUNET_free (auth->wire_gateway_url); +} + + +/* end of mb_parse.c */ |