forked from dapphp/securimage
-
Notifications
You must be signed in to change notification settings - Fork 0
/
example_form.ajax.php
205 lines (168 loc) · 7.19 KB
/
example_form.ajax.php
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
<?php
session_start(); // this MUST be called prior to any output including whitespaces and line breaks!
$GLOBALS['ct_recipient'] = '[email protected]'; // Change to your email address!
$GLOBALS['ct_msg_subject'] = 'Securimage Test Contact Form';
$GLOBALS['DEBUG_MODE'] = 1;
// CHANGE TO 0 TO TURN OFF DEBUG MODE
// IN DEBUG MODE, ONLY THE CAPTCHA CODE IS VALIDATED, AND NO EMAIL IS SENT
// Process the form, if it was submitted
process_si_contact_form();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
<title>Securimage Example Form</title>
<style type="text/css">
<!--
#success_message { border: 1px solid #000; width: 550px; text-align: left; padding: 10px 7px; background: #33ff33; color: #000; font-weight: bold; font-size: 1.2em; border-radius: 4px; -moz-border-radius: 4px; -webkit-border-radius: 4px; }
fieldset { width: 90%; }
legend { font-size: 24px; }
.note { font-size: 18px; }
form label { display: block; font-weight: bold; }
-->
</style>
</head>
<body>
<fieldset>
<legend>Example Form</legend>
<p class="note">
This is an example PHP form that processes user information, checks for errors, and validates the captcha code.<br />
This example form also demonstrates how to submit a form to itself to display error messages.
</p>
<div id="success_message" style="display: none">Your message has been sent!<br />We will contact you as soon as possible.</div>
<form method="post" action="" id="contact_form" onsubmit="return processForm()">
<input type="hidden" name="do" value="contact" />
<p>
<strong>Name*:</strong><br />
<input type="text" name="ct_name" size="35" value="" />
</p>
<p>
<strong>Email*:</strong><br />
<input type="text" name="ct_email" size="35" value="" />
</p>
<p>
<strong>URL:</strong><br />
<input type="text" name="ct_URL" size="35" value="" />
</p>
<p>
<strong>Message*:</strong><br />
<textarea name="ct_message" rows="12" cols="60"></textarea>
</p>
<p>
<?php require_once 'securimage.php'; echo Securimage::getCaptchaHtml(array('input_name' => 'ct_captcha')); ?>
</p>
<p>
<br />
<input type="submit" value="Submit Message" />
</p>
</form>
</fieldset>
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript">
$.noConflict();
function reloadCaptcha()
{
jQuery('#siimage').prop('src', './securimage_show.php?sid=' + Math.random());
}
function processForm()
{
jQuery.ajax({
url: '<?php echo htmlspecialchars($_SERVER['PHP_SELF'], ENT_QUOTES) ?>',
type: 'POST',
data: jQuery('#contact_form').serialize(),
dataType: 'json'
}).done(function(data) {
if (data.error === 0) {
jQuery('#success_message').show();
jQuery('#contact_form')[0].reset();
reloadCaptcha();
setTimeout("jQuery('#success_message').fadeOut()", 12000);
} else {
alert("There was an error with your submission.\n\n" + data.message);
if (data.message.indexOf('Incorrect security code') >= 0) {
jQuery('#captcha_code').val('');
}
}
});
return false;
}
</script>
</body>
</html>
<?php
// The form processor PHP code
function process_si_contact_form()
{
if ($_SERVER['REQUEST_METHOD'] == 'POST' && @$_POST['do'] == 'contact') {
// if the form has been submitted
foreach($_POST as $key => $value) {
if (!is_array($key)) {
// sanitize the input data
if ($key != 'ct_message') $value = strip_tags($value);
$_POST[$key] = htmlspecialchars(stripslashes(trim($value)));
}
}
$name = @$_POST['ct_name']; // name from the form
$email = @$_POST['ct_email']; // email from the form
$URL = @$_POST['ct_URL']; // url from the form
$message = @$_POST['ct_message']; // the message from the form
$captcha = @$_POST['ct_captcha']; // the user's entry for the captcha code
$name = substr($name, 0, 64); // limit name to 64 characters
$errors = array(); // initialize empty error array
if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
// only check for errors if the form is not in debug mode
if (strlen($name) < 3) {
// name too short, add error
$errors['name_error'] = 'Your name is required';
}
if (strlen($email) == 0) {
// no email address given
$errors['email_error'] = 'Email address is required';
} else if ( !preg_match('/^(?:[\w\d-]+\.?)+@(?:(?:[\w\d]\-?)+\.)+\w{2,4}$/i', $email)) {
// invalid email format
$errors['email_error'] = 'Email address entered is invalid';
}
if (strlen($message) < 20) {
// message length too short
$errors['message_error'] = 'Please enter a message';
}
}
// Only try to validate the captcha if the form has no errors
// This is especially important for ajax calls
if (sizeof($errors) == 0) {
require_once dirname(__FILE__) . '/securimage.php';
$securimage = new Securimage();
if ($securimage->check($captcha) == false) {
$errors['captcha_error'] = 'Incorrect security code entered';
}
}
if (sizeof($errors) == 0) {
// no errors, send the form
$time = date('r');
$message = "A message was submitted from the contact form. The following information was provided.<br /><br />"
. "Name: $name<br />"
. "Email: $email<br />"
. "URL: $URL<br />"
. "Message:<br />"
. "<pre>$message</pre>"
. "<br /><br />IP Address: {$_SERVER['REMOTE_ADDR']}<br />"
. "Time: $time<br />"
. "Browser: " . htmlspecialchars($_SERVER['HTTP_USER_AGENT']) . "<br />";
if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
// send the message with mail()
mail($GLOBALS['ct_recipient'], $GLOBALS['ct_msg_subject'], $message, "From: {$GLOBALS['ct_recipient']}\r\nReply-To: {$email}\r\nContent-type: text/html; charset=ISO-8859-1\r\nMIME-Version: 1.0");
}
$return = array('error' => 0, 'message' => 'OK');
die(json_encode($return));
} else {
$errmsg = '';
foreach($errors as $key => $error) {
// set up error messages to display with each field
$errmsg .= " - {$error}\n";
}
$return = array('error' => 1, 'message' => $errmsg);
die(json_encode($return));
}
} // POST
} // function process_si_contact_form()