-
Notifications
You must be signed in to change notification settings - Fork 1
/
contactform_captcha.js
218 lines (188 loc) · 5.18 KB
/
contactform_captcha.js
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
/**
* Contact form with CAPTCHA
*
* This file is part of a module for pluck (http://www.pluck-cms.org/).
* It provides the JavaScript for client side form validation.
*
* @copyright 2012 Paul Voegler
* @author Paul Voegler (http://www.voegler.eu/)
* @version 1.2 (January 2015)
* @license GPL Version 3, 29 June 2007
* See docs/COPYING for the complete license.
*/
function ajaxLoad(href, body, callback, callbackparam) {
var request = null;
if (typeof(XMLHttpRequest) == "undefined") return false;
request = new XMLHttpRequest();
request.onreadystatechange =
function() {
var result = null;
var type = '';
if (this.readyState == 4) {
if (this.status == 200) {
if (this.responseXML) {
result = this.responseXML;
} else if (this.responseText) {
if (type = this.getResponseHeader('Content-Type')) {
if (type.search(/^application\/json/i) >= 0) {
if (JSON) {
result = JSON.parse(this.responseText);
} else if (!(/[^,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]/.test(this.responseText.replace(/"(\\.|[^"\\])*"/g, '')))) {
result = eval('(' + this.responseText + ')');
}
} else if (type.search(/^text\//i) >= 0) {
result = this.responseText;
}
}
}
}
if (callback) {
callback(this, result, callbackparam);
}
}
};
request.open('POST', href, true);
request.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
request.send(body);
return true;
}
function captchaUpdate(self, idimg, idaudio, idaudiolnk) {
var url = '';
var p = 0;
var uid = Math.random();
var img = document.getElementById(idimg);
var audio = document.getElementById(idaudio);
var audiolnk = document.getElementById(idaudiolnk);
if (!img && !audio && !audiolnk) return true;
if (img) {
url = img.src;
p = url.indexOf('?');
if (p >= 0) url = url.substr(0, p);
url = url + '?uid=' + encodeURIComponent(uid);
img.src = url;
}
if (audio) {
url = audio.src;
p = url.indexOf('?');
if (p >= 0) url = url.substr(0, p);
url = url + '?uid=' + encodeURIComponent(uid);
audio.src = url;
}
if (audiolnk) {
url = audiolnk.href;
p = url.indexOf('?');
if (p >= 0) url = url.substr(0, p);
url = url + '?uid=' + encodeURIComponent(uid);
audiolnk.href = url;
}
return false;
}
function captchaPlay(self, idaudio) {
var audio = document.getElementById(idaudio);
if (!audio) return true;
if (!!audio.canPlayType && audio.canPlayType('audio/x-wav') != '') {
//if (audio.load) audio.load();
audio.play();
return false;
}
return true;
}
function cfc_callback(request, response, param) {
var element = null;
var e = null;
var s = '';
var form = document.getElementById(param.idform);
if (!form) return false;
if (response && response.valid) {
form.submit();
return true;
} else if (response) {
if (element = form.elements['captcha']) {
element.value = '';
element.className = 'error invalid';
if (e = document.getElementById(element.id + '_error_invalid')) {
e.style.display = '';
s = e.innerHTML;
}
}
if (response.retries <= 0) {
if (e = document.getElementById(param.idcaptchaupdate)) {
e.onclick();
}
}
if (param.popup) alert(s || 'Incorrect CAPTCHA!');
} else {
alert('Request error (' + request.status + ')!');
}
return false;
}
function cfc_fieldError(element, rexp) {
var e = null;
if (!element) return false;
e = document.getElementById(element.id + '_error');
if (element.value.search(rexp) < 0) {
element.className = 'error';
if (e) {
e.style.display = '';
return e.innerHTML || element.name || true;
} else {
return element.name || true;
}
} else {
element.className = '';
if (e) e.style.display = 'none';
return false;
}
return true;
}
function cfc_formCheck(form, popup, captchaurl, idcaptchaupdate) {
var f = null;
var e = null;
var s = '';
var errors = new Array();
var captcha_code = '';
if (f = form.elements['name']) if (e = cfc_fieldError(f, /\S/)) errors.push(e);
if (f = form.elements['email']) if (e = cfc_fieldError(f, /^[a-zA-Z0-9.!#$%&'*+\/=?\^_`{|}~\-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/)) errors.push(e);
if (f = form.elements['subject']) if (e = cfc_fieldError(f, /\S/)) errors.push(e);
if (f = form.elements['message']) if (e = cfc_fieldError(f, /\S/)) errors.push(e);
if (f = form.elements['captcha']) {
e = document.getElementById(f.id + '_error_invalid');
if (e) e.style.display = 'none';
if (e = cfc_fieldError(f, /^[a-zA-Z0-9]+$/)) {
errors.push(e);
} else {
captcha_code = f.value;
}
}
e = document.getElementById(form.id + '_error');
if (errors.length > 0) {
if (e) {
e.style.display = '';
s = e.innerHTML;
}
if (popup) {
s = (s || 'Form validation error!') + '\n';
for (var i = 0; i < errors.length; i++) {
if (errors[i] !== true) s = s + '\n' + errors[i];
}
alert(s);
}
return false;
}
if (e) e.style.display = 'none';
if (captcha_code !== '' && captchaurl) {
if (ajaxLoad(
captchaurl + '?code=' + encodeURIComponent(captcha_code) + '&uid=' + encodeURIComponent(Math.random()),
null,
cfc_callback, {
"idform": form.id,
"popup": popup,
"idcaptchaupdate": idcaptchaupdate
}
)
) {
return false;
}
}
return true;
}