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|
/*
This file is part of TALER
Copyright (C) 2014-2020 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 testing/testing_api_cmd_track.c
* @brief Implement the testing CMDs for the /track operations.
* @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 "track transaction" CMD.
*/
struct TrackTransactionState
{
/**
* If non NULL, will provide a WTID to be compared against
* the one returned by the "track transaction" operation.
*/
const char *bank_transfer_reference;
/**
* The WTID associated by the transaction being tracked.
*/
struct TALER_WireTransferIdentifierRawP wtid;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Reference to any operation that can provide a transaction.
* Will be the transaction to track.
*/
const char *transaction_reference;
/**
* Index of the coin involved in the transaction. Recall:
* at the exchange, the tracking is done _per coin_.
*/
unsigned int coin_index;
/**
* Handle to the "track transaction" pending operation.
*/
struct TALER_EXCHANGE_TrackTransactionHandle *tth;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
};
/**
* State for a "track transfer" CMD.
*/
struct TrackTransferState
{
/**
* Expected amount for the WTID being tracked.
*/
const char *expected_total_amount;
/**
* Expected fee for this WTID.
*/
const char *expected_wire_fee;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Reference to any operation that can provide a WTID.
* Will be the WTID to track.
*/
const char *wtid_reference;
/**
* Reference to any operation that can provide wire details.
* Those wire details will then be matched against the credit
* bank account of the tracked WTID. This way we can test that
* a wire transfer paid back one particular bank account.
*/
const char *wire_details_reference;
/**
* Reference to any operation that can provide an amount.
* This way we can check that the transferred amount matches
* our expectations.
*/
const char *total_amount_reference;
/**
* Index to the WTID to pick, in case @a wtid_reference has
* many on offer.
*/
unsigned int index;
/**
* Handle to a pending "track transfer" operation.
*/
struct TALER_EXCHANGE_TrackTransferHandle *tth;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
};
/**
* Checks what is returned by the "track transaction" operation.
* Checks that the HTTP response code is acceptable, and - if the
* right reference is non NULL - that the wire transfer subject
* line matches our expectations.
*
* @param cls closure.
* @param http_status HTTP status code we got.
* @param ec taler-specific error code.
* @param exchange_pub public key of the exchange
* @param json original json reply (may include signatures, those
* have then been validated already).
* @param wtid wire transfer identifier, NULL if exchange did not
* execute the transaction yet.
* @param execution_time actual or planned execution time for the
* wire transfer.
* @param coin_contribution contribution to the total amount of
* the deposited coin (can be NULL).
*/
static void
deposit_wtid_cb (void *cls,
unsigned int http_status,
enum TALER_ErrorCode ec,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json,
const struct TALER_WireTransferIdentifierRawP *wtid,
struct GNUNET_TIME_Absolute execution_time,
const struct TALER_Amount *coin_contribution)
{
struct TrackTransactionState *tts = cls;
struct TALER_TESTING_Interpreter *is = tts->is;
struct TALER_TESTING_Command *cmd = &is->commands[is->ip];
(void) coin_contribution;
(void) exchange_pub;
tts->tth = NULL;
if (tts->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s in %s:%u\n",
http_status,
cmd->label,
__FILE__,
__LINE__);
json_dumpf (json, stderr, 0);
TALER_TESTING_interpreter_fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
tts->wtid = *wtid;
if (NULL != tts->bank_transfer_reference)
{
const struct TALER_TESTING_Command *bank_transfer_cmd;
const struct TALER_WireTransferIdentifierRawP *wtid_want;
/* _this_ wire transfer subject line. */
bank_transfer_cmd = TALER_TESTING_interpreter_lookup_command
(is, tts->bank_transfer_reference);
if (NULL == bank_transfer_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_wtid
(bank_transfer_cmd, 0, &wtid_want))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
/* Compare that expected and gotten subjects match. */
if (0 != GNUNET_memcmp (wtid,
wtid_want))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
}
break;
case MHD_HTTP_ACCEPTED:
/* allowed, nothing to check here */
break;
case MHD_HTTP_NOT_FOUND:
/* allowed, nothing to check here */
break;
default:
GNUNET_break (0);
break;
}
TALER_TESTING_interpreter_next (tts->is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command to execute.
* @param is the interpreter state.
*/
static void
track_transaction_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct TrackTransactionState *tts = cls;
const struct TALER_TESTING_Command *transaction_cmd;
const struct TALER_CoinSpendPrivateKeyP *coin_priv;
struct TALER_CoinSpendPublicKeyP coin_pub;
const json_t *contract_terms;
const json_t *wire_details;
struct GNUNET_HashCode h_wire_details;
struct GNUNET_HashCode h_contract_terms;
const struct TALER_MerchantPrivateKeyP *merchant_priv;
tts->is = is;
transaction_cmd
= TALER_TESTING_interpreter_lookup_command (tts->is,
tts->transaction_reference);
if (NULL == transaction_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_coin_priv (transaction_cmd,
tts->coin_index,
&coin_priv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
&coin_pub.eddsa_pub);
/* Get the strings.. */
if (GNUNET_OK !=
TALER_TESTING_get_trait_wire_details (transaction_cmd,
0,
&wire_details))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_contract_terms (transaction_cmd,
0,
&contract_terms))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
if ( (NULL == wire_details) ||
(NULL == contract_terms) )
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
/* Should not fail here, json has been parsed already */
GNUNET_assert
( (GNUNET_OK ==
TALER_JSON_merchant_wire_signature_hash (wire_details,
&h_wire_details)) &&
(GNUNET_OK ==
TALER_JSON_hash (contract_terms,
&h_contract_terms)) );
if (GNUNET_OK !=
TALER_TESTING_get_trait_merchant_priv (transaction_cmd,
0,
&merchant_priv))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
tts->tth = TALER_EXCHANGE_track_transaction (is->exchange,
merchant_priv,
&h_wire_details,
&h_contract_terms,
&coin_pub,
&deposit_wtid_cb,
tts);
GNUNET_assert (NULL != tts->tth);
}
/**
* Cleanup the state from a "track transaction" CMD, and possibly
* cancel a operation thereof.
*
* @param cls closure.
* @param cmd the command which is being cleaned up.
*/
static void
track_transaction_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct TrackTransactionState *tts = cls;
if (NULL != tts->tth)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
tts->is->ip,
cmd->label);
TALER_EXCHANGE_track_transaction_cancel (tts->tth);
tts->tth = NULL;
}
GNUNET_free (tts);
}
/**
* Offer internal data from a "track transaction" CMD.
*
* @param cls closure.
* @param[out] ret result (could be anything).
* @param trait name of the trait.
* @param index index number of the object to offer.
* @return #GNUNET_OK on success.
*/
static int
track_transaction_traits (void *cls,
const void **ret,
const char *trait,
unsigned int index)
{
struct TrackTransactionState *tts = cls;
struct TALER_TESTING_Trait traits[] = {
TALER_TESTING_make_trait_wtid (0, &tts->wtid),
TALER_TESTING_trait_end ()
};
return TALER_TESTING_get_trait (traits,
ret,
trait,
index);
}
/**
* Create a "track transaction" command.
*
* @param label the command label.
* @param transaction_reference reference to a deposit operation,
* will be used to get the input data for the track.
* @param coin_index index of the coin involved in the transaction.
* @param expected_response_code expected HTTP response code.
* @param bank_transfer_reference reference to a command that
* can offer a WTID so as to check that against what WTID
* the tracked operation has. Set as NULL if not needed.
* @return the command.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_track_transaction (const char *label,
const char *transaction_reference,
unsigned int coin_index,
unsigned int expected_response_code,
const char *bank_transfer_reference)
{
struct TrackTransactionState *tts;
tts = GNUNET_new (struct TrackTransactionState);
tts->transaction_reference = transaction_reference;
tts->expected_response_code = expected_response_code;
tts->bank_transfer_reference = bank_transfer_reference;
tts->coin_index = coin_index;
{
struct TALER_TESTING_Command cmd = {
.cls = tts,
.label = label,
.run = &track_transaction_run,
.cleanup = &track_transaction_cleanup,
.traits = &track_transaction_traits
};
return cmd;
}
}
/**
* Cleanup the state for a "track transfer" CMD, and possibly
* cancel a pending operation thereof.
*
* @param cls closure.
* @param cmd the command which is being cleaned up.
*/
static void
track_transfer_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct TrackTransferState *tts = cls;
if (NULL != tts->tth)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
tts->is->ip,
cmd->label);
TALER_EXCHANGE_track_transfer_cancel (tts->tth);
tts->tth = NULL;
}
GNUNET_free (tts);
}
/**
* Check whether the HTTP response code from a "track transfer"
* operation is acceptable, and all other values like total amount,
* wire fees and hashed wire details as well.
*
* @param cls closure.
* @param http_status HTTP status code we got.
* @param ec taler-specific error code.
* @param exchange_pub public key the exchange used for signing
* the response.
* @param json original json reply (may include signatures, those
* have then been validated already).
* @param h_wire hash of the wire transfer address the transfer
* went to, or NULL on error.
* @param execution_time time when the exchange claims to have
* performed the wire transfer.
* @param total_amount total amount of the wire transfer, or NULL
* if the exchange could not provide any @a wtid (set only
* if @a http_status is "200 OK").
* @param wire_fee wire fee that was charged by the exchange.
* @param details_length length of the @a details array.
* @param details array with details about the combined
* transactions.
*/
static void
track_transfer_cb (void *cls,
unsigned int http_status,
enum TALER_ErrorCode ec,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json,
const struct GNUNET_HashCode *h_wire,
struct GNUNET_TIME_Absolute execution_time,
const struct TALER_Amount *total_amount,
const struct TALER_Amount *wire_fee,
unsigned int details_length,
const struct TALER_TrackTransferDetails *details)
{
struct TrackTransferState *tts = cls;
struct TALER_TESTING_Interpreter *is = tts->is;
struct TALER_TESTING_Command *cmd = &is->commands[is->ip];
struct TALER_Amount expected_amount;
(void) exchange_pub;
tts->tth = NULL;
if (tts->expected_response_code != http_status)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Unexpected response code %u to command %s in %s:%u\n",
http_status,
cmd->label,
__FILE__,
__LINE__);
json_dumpf (json, stderr, 0);
TALER_TESTING_interpreter_fail (is);
return;
}
switch (http_status)
{
case MHD_HTTP_OK:
if (NULL == tts->expected_total_amount)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (NULL == tts->expected_wire_fee)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_string_to_amount (tts->expected_total_amount,
&expected_amount))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (0 != TALER_amount_cmp (total_amount,
&expected_amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Total amount missmatch to command %s - "
"%s vs %s\n",
cmd->label,
TALER_amount_to_string (total_amount),
TALER_amount_to_string (&expected_amount));
json_dumpf (json, stderr, 0);
fprintf (stderr, "\n");
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_string_to_amount (tts->expected_wire_fee,
&expected_amount))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (0 != TALER_amount_cmp (wire_fee,
&expected_amount))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Wire fee missmatch to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
TALER_TESTING_interpreter_fail (is);
return;
}
/**
* Optionally checking: (1) wire-details for this transfer
* match the ones from a referenced "deposit" operation -
* or any operation that could provide wire-details. (2)
* Total amount for this transfer matches the one from any
* referenced command that could provide one.
*/if (NULL != tts->wire_details_reference)
{
const struct TALER_TESTING_Command *wire_details_cmd;
const json_t *wire_details;
struct GNUNET_HashCode h_wire_details;
if (NULL == (wire_details_cmd
= TALER_TESTING_interpreter_lookup_command
(is, tts->wire_details_reference)))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_wire_details (wire_details_cmd,
0,
&wire_details))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
GNUNET_assert
(GNUNET_OK ==
TALER_JSON_merchant_wire_signature_hash (wire_details,
&h_wire_details));
if (0 != GNUNET_memcmp (&h_wire_details,
h_wire))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Wire hash missmath to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
TALER_TESTING_interpreter_fail (is);
return;
}
}
if (NULL != tts->total_amount_reference)
{
const struct TALER_TESTING_Command *total_amount_cmd;
const struct TALER_Amount *total_amount_from_reference;
if (NULL == (total_amount_cmd
= TALER_TESTING_interpreter_lookup_command
(is, tts->total_amount_reference)))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (GNUNET_OK !=
TALER_TESTING_get_trait_amount_obj (total_amount_cmd,
0,
&total_amount_from_reference))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (is);
return;
}
if (0 != TALER_amount_cmp (total_amount,
total_amount_from_reference))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Amount missmath to command %s\n",
cmd->label);
json_dumpf (json, stderr, 0);
TALER_TESTING_interpreter_fail (is);
return;
}
}
}
TALER_TESTING_interpreter_next (is);
}
/**
* Run the command.
*
* @param cls closure.
* @param cmd the command under execution.
* @param is the interpreter state.
*/
static void
track_transfer_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
/* looking for a wtid to track .. */
struct TrackTransferState *tts = cls;
struct TALER_WireTransferIdentifierRawP wtid;
const struct TALER_WireTransferIdentifierRawP *wtid_ptr;
/* If no reference is given, we'll use a all-zeros
* WTID */
memset (&wtid, 0, sizeof (wtid));
wtid_ptr = &wtid;
tts->is = is;
if (NULL != tts->wtid_reference)
{
const struct TALER_TESTING_Command *wtid_cmd;
wtid_cmd = TALER_TESTING_interpreter_lookup_command
(tts->is, tts->wtid_reference);
if (NULL == wtid_cmd)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
if (GNUNET_OK != TALER_TESTING_get_trait_wtid
(wtid_cmd, tts->index, &wtid_ptr))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (tts->is);
return;
}
GNUNET_assert (NULL != wtid_ptr);
}
tts->tth = TALER_EXCHANGE_track_transfer (is->exchange,
wtid_ptr,
&track_transfer_cb,
tts);
GNUNET_assert (NULL != tts->tth);
}
/**
* Make a "track transfer" CMD where no "expected"-arguments,
* except the HTTP response code, are given. The best use case
* is when what matters to check is the HTTP response code, e.g.
* when a bogus WTID was passed.
*
* @param label the command label
* @param wtid_reference reference to any command which can provide
* a wtid. If NULL is given, then a all zeroed WTID is
* used that will at 99.9999% probability NOT match any
* existing WTID known to the exchange.
* @param index index number of the WTID to track, in case there
* are multiple on offer.
* @param expected_response_code expected HTTP response code.
* @return the command.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_track_transfer_empty (const char *label,
const char *wtid_reference,
unsigned int index,
unsigned int expected_response_code)
{
struct TrackTransferState *tts;
tts = GNUNET_new (struct TrackTransferState);
tts->wtid_reference = wtid_reference;
tts->index = index;
tts->expected_response_code = expected_response_code;
{
struct TALER_TESTING_Command cmd = {
.cls = tts,
.label = label,
.run = &track_transfer_run,
.cleanup = &track_transfer_cleanup
};
return cmd;
}
}
/**
* Make a "track transfer" command, specifying which amount and
* wire fee are expected.
*
* @param label the command label.
* @param wtid_reference reference to any command which can provide
* a wtid. Will be the one tracked.
* @param index in case there are multiple WTID offered, this
* parameter selects a particular one.
* @param expected_response_code expected HTTP response code.
* @param expected_total_amount how much money we expect being moved
* with this wire-transfer.
* @param expected_wire_fee expected wire fee.
* @return the command
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_track_transfer (const char *label,
const char *wtid_reference,
unsigned int index,
unsigned int expected_response_code,
const char *expected_total_amount,
const char *expected_wire_fee)
{
struct TrackTransferState *tts;
tts = GNUNET_new (struct TrackTransferState);
tts->wtid_reference = wtid_reference;
tts->index = index;
tts->expected_response_code = expected_response_code;
tts->expected_total_amount = expected_total_amount;
tts->expected_wire_fee = expected_wire_fee;
{
struct TALER_TESTING_Command cmd = {
.cls = tts,
.label = label,
.run = &track_transfer_run,
.cleanup = &track_transfer_cleanup
};
return cmd;
}
}
/* end of testing_api_cmd_track.c */
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