skeleton for /purses//deposit
This commit is contained in:
Christian Grothoff
parent
31c545b9e8
commit
1002ac13e4
609
src/exchange/taler-exchange-httpd_purses_deposit.c
Normal file
609
src/exchange/taler-exchange-httpd_purses_deposit.c
Normal file
@ -0,0 +1,609 @@
|
||||
/*
|
||||
This file is part of TALER
|
||||
Copyright (C) 2022 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 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, see <http://www.gnu.org/licenses/>
|
||||
*/
|
||||
/**
|
||||
* @file taler-exchange-httpd_purses_create.c
|
||||
* @brief Handle /purses/$PID/deposit requests; parses the POST and JSON and
|
||||
* verifies the coin signature before handing things off
|
||||
* to the database.
|
||||
* @author Christian Grothoff
|
||||
*/
|
||||
#include "platform.h"
|
||||
#include <gnunet/gnunet_util_lib.h>
|
||||
#include <gnunet/gnunet_json_lib.h>
|
||||
#include <jansson.h>
|
||||
#include <microhttpd.h>
|
||||
#include <pthread.h>
|
||||
#include "taler_json_lib.h"
|
||||
#include "taler_mhd_lib.h"
|
||||
#include "taler-exchange-httpd_purses_deposit.h"
|
||||
#include "taler-exchange-httpd_responses.h"
|
||||
#include "taler_exchangedb_lib.h"
|
||||
#include "taler-exchange-httpd_keys.h"
|
||||
|
||||
|
||||
/**
|
||||
* Information about an individual coin being deposited.
|
||||
*/
|
||||
struct Coin
|
||||
{
|
||||
/**
|
||||
* Public information about the coin.
|
||||
*/
|
||||
struct TALER_CoinPublicInfo cpi;
|
||||
|
||||
/**
|
||||
* Signature affirming spending the coin.
|
||||
*/
|
||||
struct TALER_CoinSpendSignatureP coin_sig;
|
||||
|
||||
/**
|
||||
* Amount to be put into the purse from this coin.
|
||||
*/
|
||||
struct TALER_Amount amount;
|
||||
|
||||
/**
|
||||
* Deposit fee applicable for this coin.
|
||||
*/
|
||||
struct TALER_Amount deposit_fee;
|
||||
|
||||
/**
|
||||
* Amount to be put into the purse from this coin.
|
||||
*/
|
||||
struct TALER_Amount amount_minus_fee;
|
||||
|
||||
/**
|
||||
* ID of the coin in known_coins.
|
||||
*/
|
||||
uint64_t known_coin_id;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Closure for #deposit_transaction.
|
||||
*/
|
||||
struct PurseDepositContext
|
||||
{
|
||||
/**
|
||||
* Public key of the purse we are creating.
|
||||
*/
|
||||
const struct TALER_PurseContractPublicKeyP *purse_pub;
|
||||
|
||||
/**
|
||||
* Total amount to be put into the purse.
|
||||
*/
|
||||
struct TALER_Amount amount;
|
||||
|
||||
/**
|
||||
* Total actually deposited by all the coins.
|
||||
*/
|
||||
struct TALER_Amount deposit_total;
|
||||
|
||||
/**
|
||||
* When should the purse expire.
|
||||
*/
|
||||
struct GNUNET_TIME_Timestamp purse_expiration;
|
||||
|
||||
/**
|
||||
* Our current time.
|
||||
*/
|
||||
struct GNUNET_TIME_Timestamp exchange_timestamp;
|
||||
|
||||
/**
|
||||
* Array of coins being deposited.
|
||||
*/
|
||||
struct Coin *coins;
|
||||
|
||||
/**
|
||||
* Length of the @e coins array.
|
||||
*/
|
||||
unsigned int num_coins;
|
||||
|
||||
/**
|
||||
* Minimum age for deposits into this purse.
|
||||
*/
|
||||
uint32_t min_age;
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* Send confirmation of purse creation success to client.
|
||||
*
|
||||
* @param connection connection to the client
|
||||
* @param pcc details about the request that succeeded
|
||||
* @return MHD result code
|
||||
*/
|
||||
static MHD_RESULT
|
||||
reply_deposit_success (struct MHD_Connection *connection,
|
||||
const struct PurseDepositContext *pcc)
|
||||
{
|
||||
struct TALER_ExchangePublicKeyP pub;
|
||||
struct TALER_ExchangeSignatureP sig;
|
||||
enum TALER_ErrorCode ec;
|
||||
|
||||
if (TALER_EC_NONE !=
|
||||
(ec = TALER_exchange_online_purse_deposited_sign (
|
||||
&TEH_keys_exchange_sign_,
|
||||
pcc->exchange_timestamp,
|
||||
pcc->purse_expiration,
|
||||
&pcc->amount,
|
||||
&pcc->deposit_total,
|
||||
pcc->purse_pub,
|
||||
&pub,
|
||||
&sig)))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MHD_reply_with_ec (connection,
|
||||
ec,
|
||||
NULL);
|
||||
}
|
||||
return TALER_MHD_REPLY_JSON_PACK (
|
||||
connection,
|
||||
MHD_HTTP_OK,
|
||||
TALER_JSON_pack_amount ("total_deposited",
|
||||
&pcc->deposit_total),
|
||||
GNUNET_JSON_pack_timestamp ("exchange_timestamp",
|
||||
pcc->exchange_timestamp),
|
||||
GNUNET_JSON_pack_data_auto ("exchange_sig",
|
||||
&sig),
|
||||
GNUNET_JSON_pack_data_auto ("exchange_pub",
|
||||
&pub));
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Execute database transaction for /purses/$PID/deposit. Runs the transaction
|
||||
* logic; IF it returns a non-error code, the transaction logic MUST NOT queue
|
||||
* a MHD response. IF it returns an hard error, the transaction logic MUST
|
||||
* queue a MHD response and set @a mhd_ret. IF it returns the soft error
|
||||
* code, the function MAY be called again to retry and MUST not queue a MHD
|
||||
* response.
|
||||
*
|
||||
* @param cls a `struct PurseDepositContext`
|
||||
* @param connection MHD request context
|
||||
* @param[out] mhd_ret set to MHD status on error
|
||||
* @return transaction status
|
||||
*/
|
||||
static enum GNUNET_DB_QueryStatus
|
||||
deposit_transaction (void *cls,
|
||||
struct MHD_Connection *connection,
|
||||
MHD_RESULT *mhd_ret)
|
||||
{
|
||||
struct PurseDepositContext *pcc = cls;
|
||||
enum GNUNET_DB_QueryStatus qs;
|
||||
bool in_conflict = true;
|
||||
|
||||
for (unsigned int i = 0; i<pcc->num_coins; i++)
|
||||
{
|
||||
struct Coin *coin = &pcc->coins[i];
|
||||
bool balance_ok = false;
|
||||
bool conflict = true;
|
||||
|
||||
qs = TEH_plugin->do_purse_deposit (TEH_plugin->cls,
|
||||
pcc->purse_pub,
|
||||
&coin->cpi.coin_pub,
|
||||
&coin->amount,
|
||||
&coin->coin_sig,
|
||||
&coin->amount_minus_fee,
|
||||
&balance_ok,
|
||||
&conflict);
|
||||
if (qs <= 0)
|
||||
{
|
||||
if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
|
||||
return qs;
|
||||
TALER_LOG_WARNING (
|
||||
"Failed to store purse deposit information in database\n");
|
||||
*mhd_ret = TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_INTERNAL_SERVER_ERROR,
|
||||
TALER_EC_GENERIC_DB_STORE_FAILED,
|
||||
"purse deposit deposit");
|
||||
return qs;
|
||||
}
|
||||
if (! balance_ok)
|
||||
{
|
||||
*mhd_ret
|
||||
= TEH_RESPONSE_reply_coin_insufficient_funds (
|
||||
connection,
|
||||
TALER_EC_EXCHANGE_GENERIC_INSUFFICIENT_FUNDS,
|
||||
&coin->cpi.coin_pub);
|
||||
return GNUNET_DB_STATUS_HARD_ERROR;
|
||||
}
|
||||
if (conflict)
|
||||
{
|
||||
struct TALER_Amount amount;
|
||||
struct TALER_CoinSpendPublicKeyP coin_pub;
|
||||
struct TALER_CoinSpendSignatureP coin_sig;
|
||||
char *partner_url = NULL;
|
||||
|
||||
TEH_plugin->rollback (TEH_plugin->cls);
|
||||
qs = TEH_plugin->get_purse_deposit (TEH_plugin->cls,
|
||||
pcc->purse_pub,
|
||||
&coin->cpi.coin_pub,
|
||||
&amount,
|
||||
&coin_sig,
|
||||
&partner_url);
|
||||
if (qs < 0)
|
||||
{
|
||||
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR != qs);
|
||||
TALER_LOG_WARNING (
|
||||
"Failed to fetch purse deposit information from database\n");
|
||||
*mhd_ret = TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_INTERNAL_SERVER_ERROR,
|
||||
TALER_EC_GENERIC_DB_FETCH_FAILED,
|
||||
"get purse deposit");
|
||||
return GNUNET_DB_STATUS_HARD_ERROR;
|
||||
}
|
||||
|
||||
*mhd_ret
|
||||
= TALER_MHD_REPLY_JSON_PACK (
|
||||
connection,
|
||||
MHD_HTTP_CONFLICT,
|
||||
TALER_JSON_pack_ec (
|
||||
TALER_EC_EXCHANGE_PURSE_DEPOSIT_CONFLICTING_META_DATA),
|
||||
GNUNET_JSON_pack_data_auto ("coin_pub",
|
||||
&coin_pub),
|
||||
GNUNET_JSON_pack_data_auto ("coin_sig",
|
||||
&coin_sig),
|
||||
GNUNET_JSON_pack_allow_null (
|
||||
GNUNET_JSON_pack_string ("partner_url",
|
||||
partner_url)),
|
||||
TALER_JSON_pack_amount ("amount",
|
||||
&amount));
|
||||
GNUNET_free (partner_url);
|
||||
return GNUNET_DB_STATUS_HARD_ERROR;
|
||||
}
|
||||
}
|
||||
return qs;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Parse a coin and check signature of the coin and the denomination
|
||||
* signature over the coin.
|
||||
*
|
||||
* @param[in,out] our HTTP connection
|
||||
* @param[in,out] request context
|
||||
* @param[out] coin coin to initialize
|
||||
* @param jcoin coin to parse
|
||||
* @return #GNUNET_OK on success, #GNUNET_NO if an error was returned,
|
||||
* #GNUNET_SYSERR on failure and no error could be returned
|
||||
*/
|
||||
static enum GNUNET_GenericReturnValue
|
||||
parse_coin (struct MHD_Connection *connection,
|
||||
struct PurseDepositContext *pcc,
|
||||
struct Coin *coin,
|
||||
const json_t *jcoin)
|
||||
{
|
||||
struct GNUNET_JSON_Specification spec[] = {
|
||||
TALER_JSON_spec_amount ("amount",
|
||||
TEH_currency,
|
||||
&coin->amount),
|
||||
GNUNET_JSON_spec_fixed_auto ("denom_pub_hash",
|
||||
&coin->cpi.denom_pub_hash),
|
||||
TALER_JSON_spec_denom_sig ("ub_sig",
|
||||
&coin->cpi.denom_sig),
|
||||
GNUNET_JSON_spec_mark_optional (
|
||||
GNUNET_JSON_spec_fixed_auto ("h_age_commitment",
|
||||
&coin->cpi.h_age_commitment),
|
||||
&coin->cpi.no_age_commitment),
|
||||
GNUNET_JSON_spec_fixed_auto ("coin_sig",
|
||||
&coin->coin_sig),
|
||||
GNUNET_JSON_spec_fixed_auto ("coin_pub",
|
||||
&coin->cpi.coin_pub),
|
||||
GNUNET_JSON_spec_end ()
|
||||
};
|
||||
|
||||
{
|
||||
enum GNUNET_GenericReturnValue res;
|
||||
|
||||
res = TALER_MHD_parse_json_data (connection,
|
||||
jcoin,
|
||||
spec);
|
||||
if (GNUNET_OK != res)
|
||||
return res;
|
||||
}
|
||||
|
||||
if (GNUNET_OK !=
|
||||
TALER_wallet_purse_deposit_verify (TEH_base_url,
|
||||
pcc->purse_pub,
|
||||
&pcc->amount,
|
||||
&coin->cpi.coin_pub,
|
||||
&coin->coin_sig))
|
||||
{
|
||||
TALER_LOG_WARNING ("Invalid signature on /purses/$PID/deposit request\n");
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_FORBIDDEN,
|
||||
TALER_EC_EXCHANGE_PURSE_DEPOSIT_COIN_SIGNATURE_INVALID,
|
||||
TEH_base_url))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
/* check denomination exists and is valid */
|
||||
{
|
||||
struct TEH_DenominationKey *dk;
|
||||
MHD_RESULT mret;
|
||||
|
||||
dk = TEH_keys_denomination_by_hash (&coin->cpi.denom_pub_hash,
|
||||
connection,
|
||||
&mret);
|
||||
if (NULL == dk)
|
||||
{
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES == mret) ? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (0 > TALER_amount_cmp (&dk->meta.value,
|
||||
&coin->amount))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_BAD_REQUEST,
|
||||
TALER_EC_EXCHANGE_GENERIC_AMOUNT_EXCEEDS_DENOMINATION_VALUE,
|
||||
NULL))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (GNUNET_TIME_absolute_is_past (dk->meta.expire_deposit.abs_time))
|
||||
{
|
||||
/* This denomination is past the expiration time for deposits */
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TEH_RESPONSE_reply_expired_denom_pub_hash (
|
||||
connection,
|
||||
&coin->cpi.denom_pub_hash,
|
||||
TALER_EC_EXCHANGE_GENERIC_DENOMINATION_EXPIRED,
|
||||
"PURSE DEPOSIT"))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (GNUNET_TIME_absolute_is_future (dk->meta.start.abs_time))
|
||||
{
|
||||
/* This denomination is not yet valid */
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TEH_RESPONSE_reply_expired_denom_pub_hash (
|
||||
connection,
|
||||
&coin->cpi.denom_pub_hash,
|
||||
TALER_EC_EXCHANGE_GENERIC_DENOMINATION_VALIDITY_IN_FUTURE,
|
||||
"PURSE DEPOSIT"))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (dk->recoup_possible)
|
||||
{
|
||||
/* This denomination has been revoked */
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TEH_RESPONSE_reply_expired_denom_pub_hash (
|
||||
connection,
|
||||
&coin->cpi.denom_pub_hash,
|
||||
TALER_EC_EXCHANGE_GENERIC_DENOMINATION_REVOKED,
|
||||
"PURSE DEPOSIT"))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (dk->denom_pub.cipher != coin->cpi.denom_sig.cipher)
|
||||
{
|
||||
/* denomination cipher and denomination signature cipher not the same */
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_BAD_REQUEST,
|
||||
TALER_EC_EXCHANGE_GENERIC_CIPHER_MISMATCH,
|
||||
NULL))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
|
||||
coin->deposit_fee = dk->meta.fees.deposit;
|
||||
if (0 < TALER_amount_cmp (&coin->deposit_fee,
|
||||
&coin->amount))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_BAD_REQUEST,
|
||||
TALER_EC_EXCHANGE_DEPOSIT_NEGATIVE_VALUE_AFTER_FEE,
|
||||
NULL);
|
||||
}
|
||||
GNUNET_assert (0 <=
|
||||
TALER_amount_subtract (&coin->amount_minus_fee,
|
||||
&coin->amount,
|
||||
&coin->deposit_fee));
|
||||
/* check coin signature */
|
||||
switch (dk->denom_pub.cipher)
|
||||
{
|
||||
case TALER_DENOMINATION_RSA:
|
||||
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_RSA]++;
|
||||
break;
|
||||
case TALER_DENOMINATION_CS:
|
||||
TEH_METRICS_num_verifications[TEH_MT_SIGNATURE_CS]++;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
if (GNUNET_YES !=
|
||||
TALER_test_coin_valid (&coin->cpi,
|
||||
&dk->denom_pub))
|
||||
{
|
||||
TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return (MHD_YES ==
|
||||
TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_FORBIDDEN,
|
||||
TALER_EC_EXCHANGE_DENOMINATION_SIGNATURE_INVALID,
|
||||
NULL))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (0 >
|
||||
TALER_amount_add (&pcc->deposit_total,
|
||||
&pcc->deposit_total,
|
||||
&coin->amount_minus_fee))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_INTERNAL_SERVER_ERROR,
|
||||
TALER_EC_GENERIC_FAILED_COMPUTE_AMOUNT,
|
||||
"total deposit contribution");
|
||||
}
|
||||
}
|
||||
{
|
||||
MHD_RESULT mhd_ret = MHD_NO;
|
||||
enum GNUNET_DB_QueryStatus qs;
|
||||
|
||||
/* make sure coin is 'known' in database */
|
||||
for (unsigned int tries = 0; tries<MAX_TRANSACTION_COMMIT_RETRIES; tries++)
|
||||
{
|
||||
qs = TEH_make_coin_known (&coin->cpi,
|
||||
connection,
|
||||
&coin->known_coin_id,
|
||||
&mhd_ret);
|
||||
/* no transaction => no serialization failures should be possible */
|
||||
if (GNUNET_DB_STATUS_SOFT_ERROR != qs)
|
||||
break;
|
||||
}
|
||||
if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return (MHD_YES ==
|
||||
TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_INTERNAL_SERVER_ERROR,
|
||||
TALER_EC_GENERIC_DB_COMMIT_FAILED,
|
||||
"make_coin_known"))
|
||||
? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
if (qs < 0)
|
||||
return (MHD_YES == mhd_ret) ? GNUNET_NO : GNUNET_SYSERR;
|
||||
}
|
||||
return GNUNET_OK;
|
||||
}
|
||||
|
||||
|
||||
MHD_RESULT
|
||||
TEH_handler_purses_deposit (
|
||||
struct MHD_Connection *connection,
|
||||
const struct TALER_PurseContractPublicKeyP *purse_pub,
|
||||
const json_t *root)
|
||||
{
|
||||
struct PurseDepositContext pcc = {
|
||||
.purse_pub = purse_pub,
|
||||
.exchange_timestamp = GNUNET_TIME_timestamp_get ()
|
||||
};
|
||||
json_t *deposits;
|
||||
json_t *deposit;
|
||||
unsigned int idx;
|
||||
struct GNUNET_JSON_Specification spec[] = {
|
||||
GNUNET_JSON_spec_json ("deposits",
|
||||
&deposits),
|
||||
GNUNET_JSON_spec_end ()
|
||||
};
|
||||
|
||||
{
|
||||
enum GNUNET_GenericReturnValue res;
|
||||
|
||||
res = TALER_MHD_parse_json_data (connection,
|
||||
root,
|
||||
spec);
|
||||
if (GNUNET_SYSERR == res)
|
||||
{
|
||||
GNUNET_break (0);
|
||||
return MHD_NO; /* hard failure */
|
||||
}
|
||||
if (GNUNET_NO == res)
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
return MHD_YES; /* failure */
|
||||
}
|
||||
}
|
||||
GNUNET_assert (GNUNET_OK ==
|
||||
TALER_amount_set_zero (TEH_currency,
|
||||
&pcc.deposit_total));
|
||||
pcc.num_coins = json_array_size (deposits);
|
||||
if ( (0 == pcc.num_coins) ||
|
||||
(pcc.num_coins > TALER_MAX_FRESH_COINS) )
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_BAD_REQUEST,
|
||||
TALER_EC_GENERIC_PARAMETER_MALFORMED,
|
||||
"deposits");
|
||||
}
|
||||
/* FIXME: fetch basic purse properties
|
||||
(min age, purse_expiration, amount) from
|
||||
DB. Generate 404 or 410 (Gone) replies if
|
||||
applicable. */
|
||||
|
||||
/* parse deposits */
|
||||
pcc.coins = GNUNET_new_array (pcc.num_coins,
|
||||
struct Coin);
|
||||
json_array_foreach (deposits, idx, deposit)
|
||||
{
|
||||
enum GNUNET_GenericReturnValue res;
|
||||
struct Coin *coin = &pcc.coins[idx];
|
||||
|
||||
res = parse_coin (connection,
|
||||
&pcc,
|
||||
coin,
|
||||
deposit);
|
||||
if (GNUNET_OK != res)
|
||||
{
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
GNUNET_free (pcc.coins);
|
||||
return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
|
||||
}
|
||||
}
|
||||
|
||||
if (GNUNET_SYSERR ==
|
||||
TEH_plugin->preflight (TEH_plugin->cls))
|
||||
{
|
||||
GNUNET_break (0);
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
GNUNET_free (pcc.coins);
|
||||
return TALER_MHD_reply_with_error (connection,
|
||||
MHD_HTTP_INTERNAL_SERVER_ERROR,
|
||||
TALER_EC_GENERIC_DB_START_FAILED,
|
||||
"preflight failure");
|
||||
}
|
||||
|
||||
/* execute transaction */
|
||||
{
|
||||
MHD_RESULT mhd_ret;
|
||||
|
||||
if (GNUNET_OK !=
|
||||
TEH_DB_run_transaction (connection,
|
||||
"execute purse deposit",
|
||||
TEH_MT_REQUEST_PURSE_DEPOSIT,
|
||||
&mhd_ret,
|
||||
&deposit_transaction,
|
||||
&pcc))
|
||||
{
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
GNUNET_free (pcc.coins);
|
||||
return mhd_ret;
|
||||
}
|
||||
}
|
||||
|
||||
/* generate regular response */
|
||||
{
|
||||
MHD_RESULT res;
|
||||
|
||||
res = reply_deposit_success (connection,
|
||||
&pcc);
|
||||
GNUNET_free (pcc.coins);
|
||||
GNUNET_JSON_parse_free (spec);
|
||||
return res;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* end of taler-exchange-httpd_purses_deposit.c */
|
||||
Loading…
Reference in New Issue
Block a user