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added securimage captcha
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SJ
207
webui/securimage/example_form.ajax.php
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207
webui/securimage/example_form.ajax.php
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<?php
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session_start(); // this MUST be called prior to any output including whitespaces and line breaks!
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$GLOBALS['ct_recipient'] = 'YOU@EXAMPLE.COM'; // Change to your email address!
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$GLOBALS['ct_msg_subject'] = 'Securimage Test Contact Form';
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$GLOBALS['DEBUG_MODE'] = 1;
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// CHANGE TO 0 TO TURN OFF DEBUG MODE
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// IN DEBUG MODE, ONLY THE CAPTCHA CODE IS VALIDATED, AND NO EMAIL IS SENT
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// Process the form, if it was submitted
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process_si_contact_form();
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?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
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<title>Securimage Example Form</title>
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<style type="text/css">
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<!--
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#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; }
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fieldset { width: 90%; }
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legend { font-size: 24px; }
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.note { font-size: 18px; }
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-->
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</style>
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</head>
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<body>
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<fieldset>
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<legend>Example Form</legend>
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<p class="note">
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This is an example PHP form that processes user information, checks for errors, and validates the captcha code.<br />
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This example form also demonstrates how to submit a form to itself to display error messages.
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</p>
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<div id="success_message" style="display: none">Your message has been sent!<br />We will contact you as soon as possible.</div>
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<form method="post" action="" id="contact_form" onsubmit="return processForm()">
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<input type="hidden" name="do" value="contact" />
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<p>
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<strong>Name*:</strong><br />
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<input type="text" name="ct_name" size="35" value="" />
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</p>
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<p>
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<strong>Email*:</strong><br />
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<input type="text" name="ct_email" size="35" value="" />
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</p>
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<p>
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<strong>URL:</strong><br />
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<input type="text" name="ct_URL" size="35" value="" />
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</p>
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<p>
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<strong>Message*:</strong><br />
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<textarea name="ct_message" rows="12" cols="60"></textarea>
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</p>
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<p>
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<img id="siimage" style="border: 1px solid #000; margin-right: 15px" src="./securimage_show.php?sid=<?php echo md5(uniqid()) ?>" alt="CAPTCHA Image" align="left" />
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<object type="application/x-shockwave-flash" data="./securimage_play.swf?bgcol=#ffffff&icon_file=./images/audio_icon.png&audio_file=./securimage_play.php" height="32" width="32">
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<param name="movie" value="./securimage_play.swf?bgcol=#ffffff&icon_file=./images/audio_icon.png&audio_file=./securimage_play.php" />
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</object>
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<a tabindex="-1" style="border-style: none;" href="#" title="Refresh Image" onclick="document.getElementById('siimage').src = './securimage_show.php?sid=' + Math.random(); this.blur(); return false"><img src="./images/refresh.png" alt="Reload Image" height="32" width="32" onclick="this.blur()" align="bottom" border="0" /></a><br />
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<strong>Enter Code*:</strong><br />
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<input type="text" name="ct_captcha" size="12" maxlength="8" />
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</p>
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<p>
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<br />
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<input type="submit" value="Submit Message" />
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</p>
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</form>
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</fieldset>
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<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
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<script type="text/javascript">
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$.noConflict();
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function reloadCaptcha()
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{
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jQuery('#siimage').src = './securimage_show.php?sid=' + Math.random();
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}
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function processForm()
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{
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jQuery.ajax({
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url: '<?php echo $_SERVER['PHP_SELF'] ?>',
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type: 'POST',
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data: jQuery('#contact_form').serialize(),
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dataType: 'json',
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}).done(function(data) {
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if (data.error === 0) {
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jQuery('#success_message').show();
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jQuery('#contact_form')[0].reset();
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reloadCaptcha();
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setTimeout("jQuery('#success_message').fadeOut()", 30000);
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} else {
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alert("There was an error with your submission.\n\n" + data.message);
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}
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});
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return false;
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}
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</script>
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</body>
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</html>
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<?php
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// The form processor PHP code
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function process_si_contact_form()
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{
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if ($_SERVER['REQUEST_METHOD'] == 'POST' && @$_POST['do'] == 'contact') {
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// if the form has been submitted
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foreach($_POST as $key => $value) {
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if (!is_array($key)) {
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// sanitize the input data
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if ($key != 'ct_message') $value = strip_tags($value);
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$_POST[$key] = htmlspecialchars(stripslashes(trim($value)));
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}
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}
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$name = @$_POST['ct_name']; // name from the form
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$email = @$_POST['ct_email']; // email from the form
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$URL = @$_POST['ct_URL']; // url from the form
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$message = @$_POST['ct_message']; // the message from the form
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$captcha = @$_POST['ct_captcha']; // the user's entry for the captcha code
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$name = substr($name, 0, 64); // limit name to 64 characters
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$errors = array(); // initialize empty error array
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if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
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// only check for errors if the form is not in debug mode
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if (strlen($name) < 3) {
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// name too short, add error
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$errors['name_error'] = 'Your name is required';
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}
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if (strlen($email) == 0) {
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// no email address given
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$errors['email_error'] = 'Email address is required';
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} else if ( !preg_match('/^(?:[\w\d]+\.?)+@(?:(?:[\w\d]\-?)+\.)+\w{2,4}$/i', $email)) {
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// invalid email format
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$errors['email_error'] = 'Email address entered is invalid';
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}
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if (strlen($message) < 20) {
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// message length too short
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$errors['message_error'] = 'Please enter a message';
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}
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}
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// Only try to validate the captcha if the form has no errors
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// This is especially important for ajax calls
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if (sizeof($errors) == 0) {
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require_once dirname(__FILE__) . '/securimage.php';
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$securimage = new Securimage();
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if ($securimage->check($captcha) == false) {
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$errors['captcha_error'] = 'Incorrect security code entered';
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}
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}
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if (sizeof($errors) == 0) {
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// no errors, send the form
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$time = date('r');
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$message = "A message was submitted from the contact form. The following information was provided.<br /><br />"
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. "Name: $name<br />"
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. "Email: $email<br />"
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. "URL: $URL<br />"
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. "Message:<br />"
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. "<pre>$message</pre>"
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. "<br /><br />IP Address: {$_SERVER['REMOTE_ADDR']}<br />"
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. "Time: $time<br />"
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. "Browser: {$_SERVER['HTTP_USER_AGENT']}<br />";
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if (isset($GLOBALS['DEBUG_MODE']) && $GLOBALS['DEBUG_MODE'] == false) {
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// send the message with mail()
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mail($GLOBALS['ct_recipient'], $GLOBALS['ct_msg_subject'], $message, "From: {$GLOBALS['ct_recipient']}\r\nReply-To: {$email}\r\nContent-type: text/html; charset=ISO-8859-1\r\nMIME-Version: 1.0");
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}
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$return = array('error' => 0, 'message' => 'OK');
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die(json_encode($return));
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} else {
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$errmsg = '';
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foreach($errors as $key => $error) {
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// set up error messages to display with each field
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$errmsg .= " - {$error}\n";
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}
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$return = array('error' => 1, 'message' => $errmsg);
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die(json_encode($return));
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}
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} // POST
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} // function process_si_contact_form()
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