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<?php
/*
This file is part of GNU TALER.
Copyright (C) 2014, 2015 GNUnet e.V.
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2.1, 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with
TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
*/
/*
This serving module adds the 'max_fee' field to the object which
sends to the backend, and optionally the field 'edate' (indicating
to the mint the tollerated deadline to receive funds for this payment)
NOTE: 'max_fee' must be consistent with the same value indicated within
the contract; thus, a "real" merchant must implement such a mapping
*/
include '../frontend_lib/util.php';
function respond_success() {
$_SESSION['payment_ok'] = true;
$json = json_encode(
array(
"fulfillment_url" => url_rel("fulfillment.php")));
echo $json;
}
session_start();
if (!isset($_SESSION['H_contract']))
{
$json = json_encode(
array("error" => "No session active"));
echo $json;
http_response_code (401);
die();
}
if (isset($_SESSION['payment_ok']) && $_SESSION['payment_ok'] == true)
{
respond_success();
die();
}
$post_body = file_get_contents('php://input');
$now = new DateTime('now');
$edate = array ('edate' =>
"/Date(" . $now->add(new DateInterval('P2W'))->getTimestamp() . ")/");
$deposit_permission = json_decode ($post_body, true);
$to_add = array('max_fee' => array('value' => 3,
'fraction' => 8,
'currency' => $_SESSION['currency']),
'amount' => array('value' => $_SESSION['amount_value'],
'fraction' => $_SESSION['amount_fraction'],
'currency' => $_SESSION['currency']));
$new_deposit_permission = array_merge($deposit_permission, $to_add);
$new_deposit_permission_edate = array_merge($new_deposit_permission, $edate);
/* Craft the HTTP request, note that the backend
could be on an entirely different machine if
desired. */
// Backend is relative to the shop site.
/**
* WARNING: the "shop site" is '"http://".$_SERVER["HTTP_HOST"]'
* So do not attach $_SERVER["REQUEST_URI"] before proxying requests
* to the backend
*/
$url = url_join("http://".$_SERVER["HTTP_HOST"], "backend/pay");
$req = new http\Client\Request("POST",
$url,
array ("Content-Type" => "application/json"));
$req->getBody()->append (json_encode ($new_deposit_permission));
// Execute the HTTP request
$client = new http\Client;
$client->enqueue($req)->send ();
// Fetch the response
$resp = $client->getResponse ();
$status_code = $resp->getResponseCode ();
// Our response code is the same we got from the backend:
http_response_code ($status_code);
// Now generate our body
if ($status_code != 200)
{
$json = json_encode(
array(
"error" => "backend error",
"status" => $status_code,
"detail" => $resp->body->toString ()));
echo $json;
}
else
{
respond_success();
die();
}
?>
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