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
|
<!DOCTYPE html>
<html>
<head>
<title>Choose payment method</title>
<script>
/*
@licstart The following is the entire license notice for the
JavaScript code in this page.
Copyright (C) 2014,2015 GNUnet e.V.
The JavaScript code in this page is free software: you can
redistribute it and/or modify it under the terms of the GNU
General Public License (GNU GPL) as published by the Free Software
Foundation, either version 3 of the License, or (at your option)
any later version. The code is distributed WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU GPL for more details.
As additional permission under GNU GPL version 3 section 7, you
may distribute non-source (e.g., minimized or compacted) forms of
that code without the copy of the GNU GPL normally required by
section 4, provided you include this license notice and a URL
through which recipients can access the Corresponding Source.
@licend The above is the entire license notice
for the JavaScript code in this page.
*/
</script>
</head>
<body>
<!--
This page's main aim is to show to the customer all the accepted
payments methods and actually implementing just Taler; technically
the steps are:
1. retrieve the name of who will receive this donation
2. show a menu with all the required payments means
3. create a session
4. (JavaScript) implement the "checkout" button for the sole Taler way.
Actually, this button's duty is to notice this web portal that the customer
wants to see a certificate, and optionally to pay.
-->
<?php
// getting the donation receiver's name
$got_donation = $_POST['group0'];
// create session
session_start();
$_SESSION['maydonate'] = true;
?>
<form name="tform" action="" method="POST">
<div id="opt-form" align="left"><br>
<input type="radio" name="group1" value="Lisa">Lisa<br>
<input type="radio" name="group1" value="You Card" checked>You Card<br>
<input type="radio" name="group1" value="Card Me">Card Me<br>
<input id="t-button-id" type="radio" name="group1" value="Taler" disabled="true">Taler<br>
<input type="button" onclick="ok(this.form)" value="Ok">
</div>
</form>
<script type="text/javascript">
// trigger certificate generation on the server, and signal certificate
// arrival "here" in the client.
function ok(form){
for(var cnt=0; cnt < form.group1.length; cnt++){
var choice = form.group1[cnt];
if(choice.checked){
if(choice.value == "Taler"){
var cert = new XMLHttpRequest();
/* request certificate */
cert.open("POST", "/cert.php", true);
cert.onload = function (e) {
if (cert.readyState == 4) {
if (cert.status == 200){
/* display certificate (i.e. it sends the JSON string
to the (XUL) extension) */
sendContract(cert.responseText);
}
else alert("No certificate gotten, status " + cert.status);
}
};
cert.onerror = function (e){
alert(cert.statusText);
};
cert.send(null);
}
else alert(choice.value + ": NOT available ");
}
}
};
/* the following event gets fired whenever a customer has a Taler
wallet installed in his browser. In that case, the webmaster can decide
whether or not displaying Taler as a payment option */
function has_taler_wallet_cb(aEvent){
// event awaited by the wallet to change its button's color
var eve = new Event('taler-currency');
document.body.dispatchEvent(eve);
// enable the Taler payment option from the form
var tbutton = document.getElementById("t-button-id");
tbutton.removeAttribute("disabled");
};
// The Taler extension was unloaded, disable the option
function taler_wallet_unload_cb(aEvent){
var tbutton = document.getElementById("t-button-id");
tbutton.addAttribute("disabled");
};
function sendContract(jsonContract){
var cevent = new CustomEvent('taler-contract', { 'detail' : jsonContract });
document.body.dispatchEvent(cevent);
};
/* FIXME: these triggers do not work when I enable/disable
the extension... */
// to be triggered by the wallet
document.body.addEventListener("taler-wallet", has_taler_wallet_cb, false);
// to be triggered by the wallet when it is unloaded
document.body.addEventListener("taler-unload", taler_wallet_unload_cb, false);
</script>
</body>
</html>
|
