summaryrefslogtreecommitdiff
path: root/src/frontend/generate_taler_contract.php
blob: c405e818bc014f61f296a74ab33d3b54960a0f77 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
<?php 
/*
  This file is part of GNU TALER.
  Copyright (C) 2014-2016 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/>
 */

include 'util.php';

session_start();

if (!isset($_SESSION['receiver']))
{
  http_response_code(400);
  die();
}

$receiver = $_SESSION['receiver'];
$receiver = $_SESSION['receiver'];
$amount_value = intval($_SESSION['amount_value']);
$amount_fraction = intval($_SESSION['amount_fraction']);
$currency = $_SESSION['currency'];

/* Fill in variables for simple JSON contract */
// fake product id 
$p_id = rand(0,1001);

// generate a front-end transaction id. 
// In production context, we might want to
// record this value somewhere together
// with the rest of the contract data.
$transaction_id = rand(0, 1001);

// Human-readable description of this deal
$desc = "Donation to " . $receiver;

// The tax for this deal
$teatax = array('value' => 1,
                'fraction' => 0,
                'currency' => $currency);

// Take a timestamp
$now = new DateTime('now');

// pack the JSON for the contract 
$contract = array(
  'fulfillment_url' => (url_rel("fulfillment.php") . '?uuid=${H_contract}'),
  'amount' => array(
    'value' => $amount_value,
    'fraction' => $amount_fraction,
    'currency' => $currency),
  'max_fee' => array('value' => 3,
  'fraction' => 01010,
  'currency' => $currency),
  'transaction_id' => $transaction_id,
  'products' => array(
    array(
      'description' => $desc,
      'quantity' => 1,
      'price' => array ('value' => $amount_value,
      'fraction' => $amount_fraction,
      'currency' => $currency),
      'product_id' => $p_id,
      'taxes' => array(array('teatax' => $teatax)),
      'delivery_date' => "Some Date Format",
      'delivery_location' => 'LNAME1')),
  'timestamp' => "/Date(" . $now->getTimestamp() . ")/",
  'expiry' => "/Date(" . $now->add(new DateInterval('P2W'))->getTimestamp() . ")/",
  'refund_deadline' => "/Date(" . $now->add(new DateInterval('P3M'))->getTimestamp() . ")/",
  'merchant' => array(
    'address' => 'LNAME2',
    'name' => 'test merchant',
    'jurisdiction' => 'LNAME3'),
  'locations' => array(
    'LNAME1' => array(
      'country' => 'Test Country',
      'city' => 'Test City',
      'state' => 'Test State',
      'region' => 'Test Region',
      'province' => 'Test Province',
      'ZIP code' => 4908,
      'street' => 'test street',
      'street number' => 20),
    'LNAME2' => array(
      'country' => 'Test Country',
      'city' => 'Test City',
      'state' => 'Test State',
      'region' => 'Test Region',
      'province' => 'Test Province',
      'ZIP code' => 4908,
      'street' => 'test street',
      'street number' => 20),
    'LNAME3' => array(
      'country' => 'Test Country',
      'city' => 'Test City',
      'state' => 'Test State',
      'region' => 'Test Region',
      'province' => 'Test Province',
      'ZIP code' => 4908)));

$json = json_encode(array(
  'contract' => $contract
), JSON_PRETTY_PRINT);

$url = url_join("http://".$_SERVER["HTTP_HOST"], "backend/contract");

$req = new http\Client\Request("POST",
                               $url,
                               array ("Content-Type" => "application/json"));

$req->getBody()->append($json);

// 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)
{
  echo json_encode(array(
    'error' => "internal error",
    'hint' => "backend indicated error",
    'detail' => $resp->body->toString()
  ), JSON_PRETTY_PRINT);
}
else
{
  $got_json = json_decode($resp->body->toString(), true);
  $_SESSION['H_contract'] = $got_json["H_contract"];
  echo json_encode ($got_json, JSON_PRETTY_PRINT);
}
?>