/*
This file is part of TALER
Copyright (C) 2014-2022 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 testing/testing_api_cmd_recoup_refresh.c
* @brief Implement the /recoup-refresh test command.
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "taler_testing_lib.h"
/**
* State for a "pay back" CMD.
*/
struct RecoupRefreshState
{
/**
* Expected HTTP status code.
*/
unsigned int expected_response_code;
/**
* Command that offers a reserve private key,
* plus a coin to be paid back.
*/
const char *coin_reference;
/**
* Amount to be recouped.
*/
struct TALER_Amount amount;
/**
* The interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
/**
* Handle to the ongoing operation.
*/
struct TALER_EXCHANGE_RecoupRefreshHandle *ph;
/**
* NULL if coin was not refreshed, otherwise reference
* to the melt operation underlying @a coin_reference.
*/
const char *melt_reference;
};
/**
* Check the result of the recoup_refresh request: checks whether
* the HTTP response code is good, and that the coin that
* was paid back belonged to the right old coin.
*
* @param cls closure
* @param rrr response details
*/
static void
recoup_refresh_cb (void *cls,
const struct TALER_EXCHANGE_RecoupRefreshResponse *rrr)
{
struct RecoupRefreshState *rrs = cls;
const struct TALER_EXCHANGE_HttpResponse *hr = &rrr->hr;
struct TALER_TESTING_Interpreter *is = rrs->is;
char *cref;
unsigned int idx;
rrs->ph = NULL;
if (rrs->expected_response_code != hr->http_status)
{
TALER_TESTING_unexpected_status (is,
hr->http_status);
return;
}
if (GNUNET_OK !=
TALER_TESTING_parse_coin_reference (
rrs->coin_reference,
&cref,
&idx))
{
TALER_TESTING_interpreter_fail (is);
return;
}
(void) idx; /* do NOT use! We ignore 'idx', must be 0 for melt! */
GNUNET_free (cref);
switch (hr->http_status)
{
case MHD_HTTP_OK:
/* check old_coin_pub */
{
const struct TALER_TESTING_Command *melt_cmd;
const struct TALER_CoinSpendPrivateKeyP *dirty_priv;
struct TALER_CoinSpendPublicKeyP oc;
melt_cmd = TALER_TESTING_interpreter_lookup_command (is,
rrs->melt_reference);
if (NULL == melt_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_coin_priv (melt_cmd,
0,
&dirty_priv))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Coin %u not found in command %s\n",
0,
rrs->melt_reference);
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
GNUNET_CRYPTO_eddsa_key_get_public (&dirty_priv->eddsa_priv,
&oc.eddsa_pub);
if (0 != GNUNET_memcmp (&oc,
&rrr->details.ok.old_coin_pub))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
}
break;
case MHD_HTTP_NOT_FOUND:
break;
case MHD_HTTP_CONFLICT:
break;
default:
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Unmanaged HTTP status code %u/%d.\n",
hr->http_status,
(int) hr->ec);
break;
}
TALER_TESTING_interpreter_next (is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command to execute.
* @param is the interpreter state.
*/
static void
recoup_refresh_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct RecoupRefreshState *rrs = cls;
const struct TALER_TESTING_Command *coin_cmd;
const struct TALER_TESTING_Command *melt_cmd;
const struct TALER_CoinSpendPrivateKeyP *coin_priv;
const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
const struct TALER_DenominationSignature *coin_sig;
const struct TALER_RefreshMasterSecretP *rplanchet;
const struct TALER_PlanchetMasterSecretP *planchet;
const struct TALER_ExchangeWithdrawValues *ewv;
char *cref;
unsigned int idx;
rrs->is = is;
if (GNUNET_OK !=
TALER_TESTING_parse_coin_reference (
rrs->coin_reference,
&cref,
&idx))
{
TALER_TESTING_interpreter_fail (is);
return;
}
coin_cmd = TALER_TESTING_interpreter_lookup_command (is,
cref);
GNUNET_free (cref);
if (NULL == coin_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
melt_cmd = TALER_TESTING_interpreter_lookup_command (is,
rrs->melt_reference);
if (NULL == melt_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_coin_priv (coin_cmd,
idx,
&coin_priv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_exchange_wd_value (melt_cmd,
idx,
&ewv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_planchet_secrets (coin_cmd,
idx,
&planchet))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_refresh_secret (melt_cmd,
&rplanchet))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_denom_pub (coin_cmd,
idx,
&denom_pub))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_denom_sig (coin_cmd,
idx,
&coin_sig))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Trying to recoup_refresh denomination '%s'\n",
TALER_B2S (&denom_pub->h_key));
rrs->ph = TALER_EXCHANGE_recoup_refresh (
TALER_TESTING_interpreter_get_context (is),
TALER_TESTING_get_exchange_url (is),
TALER_TESTING_get_keys (is),
denom_pub,
coin_sig,
ewv,
rplanchet,
planchet,
idx,
&recoup_refresh_cb,
rrs);
GNUNET_assert (NULL != rrs->ph);
}
/**
* Cleanup the "recoup_refresh" CMD state, and possibly cancel
* a pending operation thereof.
*
* @param cls closure.
* @param cmd the command which is being cleaned up.
*/
static void
recoup_refresh_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct RecoupRefreshState *rrs = cls;
if (NULL != rrs->ph)
{
TALER_EXCHANGE_recoup_refresh_cancel (rrs->ph);
rrs->ph = NULL;
}
GNUNET_free (rrs);
}
struct TALER_TESTING_Command
TALER_TESTING_cmd_recoup_refresh (const char *label,
unsigned int expected_response_code,
const char *coin_reference,
const char *melt_reference,
const char *amount)
{
struct RecoupRefreshState *rrs;
rrs = GNUNET_new (struct RecoupRefreshState);
rrs->expected_response_code = expected_response_code;
rrs->coin_reference = coin_reference;
rrs->melt_reference = melt_reference;
if (GNUNET_OK !=
TALER_string_to_amount (amount,
&rrs->amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to parse amount `%s' at %s\n",
amount,
label);
GNUNET_assert (0);
}
{
struct TALER_TESTING_Command cmd = {
.cls = rrs,
.label = label,
.run = &recoup_refresh_run,
.cleanup = &recoup_refresh_cleanup
};
return cmd;
}
}