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/*
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 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_purse_deposit.c
* @brief command for testing /purses/$PID/create
* @author Christian Grothoff
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "taler_testing_lib.h"
#include "taler_signatures.h"
#include "backoff.h"
/**
* Information we keep per deposited coin.
*/
struct Coin
{
/**
* Reference to the respective command.
*/
char *command_ref;
/**
* index of the specific coin in the traits of @e command_ref.
*/
unsigned int coin_index;
/**
* Amount to deposit (with fee).
*/
struct TALER_Amount deposit_with_fee;
};
/**
* State for a "purse deposit" CMD.
*/
struct PurseDepositState
{
/**
* Total purse target amount without fees.
*/
struct TALER_Amount target_amount;
/**
* Reference to any command that is able to provide a coin.
*/
struct Coin *coin_references;
/**
* The purse's public key.
*/
struct TALER_PurseContractPublicKeyP purse_pub;
/**
* PurseDeposit handle while operation is running.
*/
struct TALER_EXCHANGE_PurseDepositHandle *dh;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
/**
* Reference to the command that established the purse.
*/
const char *purse_ref;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Length of the @e coin_references array.
*/
unsigned int num_coin_references;
/**
* Minimum age to apply to all deposits.
*/
uint8_t min_age;
};
/**
* Callback to analyze the /purses/$PID/deposit response, just used to check if
* the response code is acceptable.
*
* @param cls closure.
* @param dr deposit response details
*/
static void
deposit_cb (void *cls,
const struct TALER_EXCHANGE_PurseDepositResponse *dr)
{
struct PurseDepositState *ds = cls;
ds->dh = NULL;
if (ds->expected_response_code != dr->hr.http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s in %s:%u\n",
dr->hr.http_status,
ds->is->commands[ds->is->ip].label,
__FILE__,
__LINE__);
json_dumpf (dr->hr.reply,
stderr,
0);
TALER_TESTING_interpreter_fail (ds->is);
return;
}
if (MHD_HTTP_OK == dr->hr.http_status)
{
// FIXME: any data to keep from reply?
}
TALER_TESTING_interpreter_next (ds->is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command to execute.
* @param is the interpreter state.
*/
static void
deposit_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct PurseDepositState *ds = cls;
struct TALER_EXCHANGE_PurseDeposit deposits[ds->num_coin_references];
(void) cmd;
ds->is = is;
for (unsigned int i = 0; i<ds->num_coin_references; i++)
{
const struct Coin *cr = &ds->coin_references[i];
struct TALER_EXCHANGE_PurseDeposit *pd = &deposits[i];
const struct TALER_TESTING_Command *coin_cmd;
const struct TALER_CoinSpendPrivateKeyP *coin_priv;
const struct TALER_AgeCommitmentProof *age_commitment_proof = NULL;
struct TALER_AgeCommitmentHash h_age_commitment = {0};
const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
const struct TALER_DenominationSignature *denom_pub_sig;
coin_cmd = TALER_TESTING_interpreter_lookup_command (is,
cr->command_ref);
if (NULL == coin_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if ( (GNUNET_OK !=
TALER_TESTING_get_trait_coin_priv (coin_cmd,
cr->coin_index,
&coin_priv)) ||
(GNUNET_OK !=
TALER_TESTING_get_trait_age_commitment_proof (coin_cmd,
cr->coin_index,
&age_commitment_proof))
||
(GNUNET_OK !=
TALER_TESTING_get_trait_denom_pub (coin_cmd,
cr->coin_index,
&denom_pub)) ||
(GNUNET_OK !=
TALER_TESTING_get_trait_denom_sig (coin_cmd,
cr->coin_index,
&denom_pub_sig)) )
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (NULL != age_commitment_proof)
{
TALER_age_commitment_hash (&age_commitment_proof->commitment,
&h_age_commitment);
}
#if FIXME_OEC
pd->age_commitment = *h_age_commitment;
#endif
pd->denom_sig = *denom_pub_sig;
pd->coin_priv = *coin_priv;
pd->amount = cr->deposit_with_fee;
pd->h_denom_pub = denom_pub->h_key;
}
ds->dh = TALER_EXCHANGE_purse_deposit (
is->exchange,
NULL, /* FIXME: purse exchange URL */
&ds->purse_pub,
ds->min_age,
ds->num_coin_references,
deposits,
&deposit_cb,
ds);
if (NULL == ds->dh)
{
GNUNET_break (0);
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Could not deposit into purse\n");
TALER_TESTING_interpreter_fail (is);
return;
}
}
/**
* Free the state of a "deposit" CMD, and possibly cancel a
* pending operation thereof.
*
* @param cls closure, must be a `struct PurseDepositState`.
* @param cmd the command which is being cleaned up.
*/
static void
deposit_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct PurseDepositState *ds = cls;
if (NULL != ds->dh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
ds->is->ip,
cmd->label);
TALER_EXCHANGE_purse_deposit_cancel (ds->dh);
ds->dh = NULL;
}
for (unsigned int i = 0; i<ds->num_coin_references; i++)
GNUNET_free (ds->coin_references[i].command_ref);
GNUNET_free (ds->coin_references);
GNUNET_free (ds);
}
/**
* Offer internal data from a "deposit" CMD, to other commands.
*
* @param cls closure.
* @param[out] ret result.
* @param trait name of the trait.
* @param index index number of the object to offer.
* @return #GNUNET_OK on success.
*/
static enum GNUNET_GenericReturnValue
deposit_traits (void *cls,
const void **ret,
const char *trait,
unsigned int index)
{
struct PurseDepositState *ds = cls;
struct TALER_TESTING_Trait traits[] = {
TALER_TESTING_make_trait_purse_pub (&ds->purse_pub),
TALER_TESTING_trait_end ()
};
return TALER_TESTING_get_trait (traits,
ret,
trait,
index);
}
struct TALER_TESTING_Command
TALER_TESTING_cmd_purse_deposit_coins (
const char *label,
unsigned int expected_http_status,
uint8_t min_age,
const char *purse_ref,
...)
{
struct PurseDepositState *ds;
ds = GNUNET_new (struct PurseDepositState);
ds->expected_response_code = expected_http_status;
ds->min_age = min_age;
ds->purse_ref = purse_ref;
{
va_list ap;
unsigned int i;
const char *ref;
const char *val;
va_start (ap, purse_ref);
while (NULL != (va_arg (ap, const char *)))
ds->num_coin_references++;
va_end (ap);
GNUNET_assert (0 == (ds->num_coin_references % 2));
ds->num_coin_references /= 2;
ds->coin_references = GNUNET_new_array (ds->num_coin_references,
struct Coin);
i = 0;
va_start (ap, purse_ref);
while (NULL != (ref = va_arg (ap, const char *)))
{
struct Coin *c = &ds->coin_references[i++];
GNUNET_assert (NULL != (val = va_arg (ap, const char *)));
GNUNET_assert (GNUNET_OK ==
TALER_TESTING_parse_coin_reference (
ref,
&c->command_ref,
&c->coin_index));
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (val,
&c->deposit_with_fee));
}
va_end (ap);
}
{
struct TALER_TESTING_Command cmd = {
.cls = ds,
.label = label,
.run = &deposit_run,
.cleanup = &deposit_cleanup,
.traits = &deposit_traits
};
return cmd;
}
}
/* end of testing_api_cmd_purse_deposit.c */
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