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/*
This file is part of TALER
(C) 2014-2020 Taler Systems SA
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 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 taler-merchant-httpd_private-post-reserves-ID-authorize-tip.c
* @brief implement API for authorizing tips to be paid to visitors
* @author Christian Grothoff
*/
#include "platform.h"
#include <jansson.h>
#include <taler/taler_util.h>
#include <taler/taler_json_lib.h>
#include "taler-merchant-httpd.h"
#include "taler-merchant-httpd_mhd.h"
#include "taler-merchant-httpd_get-tips-ID.h"
#include "taler-merchant-httpd_private-post-reserves-ID-authorize-tip.h"
/**
* Handle a "tip-authorize" request.
*
* @param rh context of the handler
* @param connection the MHD connection to handle
* @param[in,out] hc context with further information about the request
* @param reserve_pub reserve to use, or NULL for "any"
* @return MHD result code
*/
static MHD_RESULT
authorize_tip (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc,
const struct TALER_ReservePublicKeyP *reserve_pub)
{
enum TALER_ErrorCode ec;
struct GNUNET_TIME_Absolute expiration;
struct GNUNET_HashCode tip_id;
const char *justification;
const char *next_url;
struct TALER_Amount amount;
{
struct GNUNET_JSON_Specification spec[] = {
TALER_JSON_spec_amount ("amount",
TMH_currency,
&amount),
GNUNET_JSON_spec_string ("justification",
&justification),
GNUNET_JSON_spec_string ("next_url",
&next_url),
GNUNET_JSON_spec_end ()
};
enum GNUNET_GenericReturnValue res;
res = TALER_MHD_parse_json_data (connection,
hc->request_body,
spec);
if (GNUNET_YES != res)
{
GNUNET_break_op (0);
return (GNUNET_NO == res)
? MHD_YES
: MHD_NO;
}
}
TMH_db->preflight (TMH_db->cls);
ec = TMH_db->authorize_tip (TMH_db->cls,
hc->instance->settings.id,
reserve_pub,
&amount,
justification,
next_url,
&tip_id,
&expiration);
/* handle errors */
if (TALER_EC_NONE != ec)
{
unsigned int http_status;
switch (ec)
{
case TALER_EC_MERCHANT_PRIVATE_POST_TIP_AUTHORIZE_INSUFFICIENT_FUNDS:
http_status = MHD_HTTP_PRECONDITION_FAILED;
break;
case TALER_EC_MERCHANT_PRIVATE_POST_TIP_AUTHORIZE_RESERVE_EXPIRED:
http_status = MHD_HTTP_GONE;
break;
case TALER_EC_MERCHANT_PRIVATE_POST_TIP_AUTHORIZE_RESERVE_UNKNOWN:
http_status = MHD_HTTP_SERVICE_UNAVAILABLE;
break;
case TALER_EC_MERCHANT_PRIVATE_POST_TIP_AUTHORIZE_RESERVE_NOT_FOUND:
http_status = MHD_HTTP_NOT_FOUND;
break;
default:
http_status = MHD_HTTP_INTERNAL_SERVER_ERROR;
break;
}
return TALER_MHD_reply_with_error (connection,
http_status,
ec,
NULL);
}
/* generate success response */
{
char *taler_tip_uri;
char *tip_status_url;
struct GNUNET_CRYPTO_HashAsciiEncoded hash_enc;
MHD_RESULT res;
GNUNET_CRYPTO_hash_to_enc (&tip_id,
&hash_enc);
taler_tip_uri = TMH_make_taler_tip_uri (connection,
&tip_id,
hc->instance->settings.id);
tip_status_url = TMH_make_tip_status_url (connection,
&tip_id,
hc->instance->settings.id);
GNUNET_TIME_round_abs (&expiration);
res = TALER_MHD_REPLY_JSON_PACK (
connection,
MHD_HTTP_OK,
GNUNET_JSON_pack_string ("tip_id",
(const char *) hash_enc.encoding),
GNUNET_JSON_pack_string ("taler_tip_uri",
taler_tip_uri),
GNUNET_JSON_pack_string ("tip_status_url",
tip_status_url),
GNUNET_JSON_pack_time_abs ("tip_expiration",
expiration));
GNUNET_free (taler_tip_uri);
GNUNET_free (tip_status_url);
return res;
}
}
MHD_RESULT
TMH_private_post_reserves_ID_authorize_tip (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
struct TALER_ReservePublicKeyP reserve_pub;
if (GNUNET_OK !=
GNUNET_STRINGS_string_to_data (hc->infix,
strlen (hc->infix),
&reserve_pub,
sizeof (reserve_pub)))
{
GNUNET_break_op (0);
return TALER_MHD_reply_with_error (connection,
MHD_HTTP_BAD_REQUEST,
TALER_EC_MERCHANT_GENERIC_RESERVE_PUB_MALFORMED,
hc->infix);
}
return authorize_tip (rh,
connection,
hc,
&reserve_pub);
}
MHD_RESULT
TMH_private_post_tips (const struct TMH_RequestHandler *rh,
struct MHD_Connection *connection,
struct TMH_HandlerContext *hc)
{
return authorize_tip (rh,
connection,
hc,
NULL);
}
/* end of taler-merchant-httpd_private-post-reserves-ID-authorize-tip.c */
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