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/*
This file is part of TALER
Copyright (C) 2018 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 exchange-lib/testing_api_cmd_wire.c
* @brief command for testing /wire.
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "exchange_api_handle.h"
#include "taler_wire_lib.h"
#include "taler_testing_lib.h"
struct WireState
{
/**
* Handle to the /wire operation.
*/
struct TALER_EXCHANGE_WireHandle *wh;
/**
* Which wire-method we expect are offered by the exchange.
*/
const char *expected_method;
/**
* Flag indicating if the expected method is actually
* offered.
*/
unsigned int method_found;
/**
* Fee we expect is charged for this wire-transfer method.
*/
const char *expected_fee;
/**
* Expected HTTP response code.
*/
unsigned int expected_response_code;
/**
* Interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
/**
* Connection to the exchange.
*/
struct TALER_EXCHANGE_Handle *exchange;
};
/**
* Callbacks called with the result(s) of a wire format inquiry
* request to the exchange.
*
* @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200)
* for successful request; 0 if the exchange's
* reply is bogus (fails to follow the protocol)
* @param ec taler-specific error code, #TALER_EC_NONE on success
* @param accounts_len length of the @a accounts array
* @param accounts list of wire accounts of the exchange, NULL on error
*/
static void
wire_cb (void *cls,
unsigned int http_status,
enum TALER_ErrorCode ec,
unsigned int accounts_len,
const struct TALER_EXCHANGE_WireAccount *accounts)
{
struct WireState *ws = cls;
struct TALER_TESTING_Command *cmd = &ws->is->commands[ws->is->ip];
struct TALER_Amount expected_fee;
ws->wh = NULL;
if (ws->expected_response_code != http_status)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (ws->is);
return;
}
if (MHD_HTTP_OK == http_status)
{
for (unsigned int i=0;i<accounts_len;i++)
{
char *method;
method = TALER_WIRE_payto_get_method (accounts[i].url);
if (0 == strcmp (ws->expected_method,
method))
{
ws->method_found = GNUNET_OK;
if (NULL != ws->expected_fee)
{
GNUNET_assert (GNUNET_OK ==
TALER_string_to_amount (ws->expected_fee,
&expected_fee));
for (const struct TALER_EXCHANGE_WireAggregateFees *waf = accounts[i].fees;
NULL != waf;
waf = waf->next)
{
if (0 != TALER_amount_cmp (&waf->wire_fee,
&expected_fee))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Wire fee missmatch to command %s\n",
cmd->label);
TALER_TESTING_interpreter_fail (ws->is);
GNUNET_free (method);
return;
}
}
}
}
GNUNET_free (method);
}
if (GNUNET_OK != ws->method_found)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"/wire does not offer method '%s'\n",
ws->expected_method);
TALER_TESTING_interpreter_fail (ws->is);
return;
}
}
TALER_TESTING_interpreter_next (ws->is);
}
/**
* Run the command.
*
* @param cls closure, typically a #struct WireState.
* @param cmd the command to execute, a /wire one.
* @param i the interpreter state.
*/
void
wire_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *i)
{
struct WireState *ws = cls;
ws->is = i;
ws->wh = TALER_EXCHANGE_wire (ws->exchange,
&wire_cb,
ws);
}
/**
* Cleanup the state.
*
* @param cls closure, typically a #struct WireState.
* @param cmd the command which is being cleaned up.
*/
void
wire_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct WireState *ws = cls;
if (NULL != ws->wh)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command %u (%s) did not complete\n",
ws->is->ip,
cmd->label);
TALER_EXCHANGE_wire_cancel (ws->wh);
ws->wh = NULL;
}
GNUNET_free (ws);
}
/**
* Create a /wire command.
*
* @param label the command label.
* @param exchange the exchange to connect to.
* @param expected_method which wire-transfer method is expected
* to be offered by the exchange.
* @param expected_fee the fee the exchange should charge.
* @param expected_response_code the HTTP response the exchange
* should return.
*
* @return the command to be executed by the interpreter.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_wire (const char *label,
struct TALER_EXCHANGE_Handle *exchange,
const char *expected_method,
const char *expected_fee,
unsigned int expected_response_code)
{
struct TALER_TESTING_Command cmd;
struct WireState *ws;
ws = GNUNET_new (struct WireState);
ws->exchange = exchange;
ws->expected_method = expected_method;
ws->expected_fee = expected_fee;
ws->expected_response_code = expected_response_code;
cmd.cls = ws;
cmd.label = label;
cmd.run = &wire_run;
cmd.cleanup = &wire_cleanup;
return cmd;
}
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