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/*
This file is part of TALER
Copyright (C) 2015-2020 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-lib/bank_api_common.c
* @brief Common functions for the bank API
* @author Christian Grothoff
*/
#include "platform.h"
#include "bank_api_common.h"
/**
* Set authentication data in @a easy from @a auth.
* The API currently specifies the use of HTTP basic
* authentication.
*
* @param easy curl handle to setup for authentication
* @param auth authentication data to use
* @return #GNUNET_OK in success
*/
int
TALER_BANK_setup_auth_ (CURL *easy,
const struct TALER_BANK_AuthenticationData *auth)
{
int ret;
ret = GNUNET_OK;
switch (auth->method)
{
case TALER_BANK_AUTH_NONE:
return GNUNET_OK;
case TALER_BANK_AUTH_BASIC:
{
char *up;
GNUNET_asprintf (&up,
"%s:%s",
auth->details.basic.username,
auth->details.basic.password);
if ( (CURLE_OK !=
curl_easy_setopt (easy,
CURLOPT_HTTPAUTH,
CURLAUTH_BASIC)) ||
(CURLE_OK !=
curl_easy_setopt (easy,
CURLOPT_USERPWD,
up)) )
ret = GNUNET_SYSERR;
GNUNET_free (up);
break;
}
}
return ret;
}
/**
* Obtain the URL to use for an API request.
*
* @param u base URL of the bank.
* @param path Taler API path (i.e. "/history").
*
* @return the full URL to use with cURL, must be
* freed by the caller.
*/
char *
TALER_BANK_path_to_url_ (const char *u,
const char *path)
{
char *url;
if ( ('/' == path[0]) &&
(0 < strlen (u)) &&
('/' == u[strlen (u) - 1]) )
path++; /* avoid generating URL with "//" from concat */
GNUNET_asprintf (&url,
"%s%s",
u,
path);
return url;
}
/**
* Parse error code given in @a json.
*
* @param json the json to parse.
*
* @return error code, or #TALER_EC_INVALID if not found.
*/
enum TALER_ErrorCode
TALER_BANK_parse_ec_ (const json_t *json)
{
uint32_t ec;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_uint32 ("ec",
&ec),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (json,
spec,
NULL, NULL))
{
GNUNET_break_op (0);
return TALER_EC_INVALID;
}
return (enum TALER_ErrorCode) ec;
}
/* end of bank_api_common.c */
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