<?php
session_start(); // this MUST be called prior to any output including whitespaces and line breaks!

$GLOBALS['ct_recipient']   = 'YOU@EXAMPLE.COM'; // 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; }
	-->
	</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>
	<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" />
	<object type="application/x-shockwave-flash" data="./securimage_play.swf?bgcol=#ffffff&amp;icon_file=./images/audio_icon.png&amp;audio_file=./securimage_play.php" height="32" width="32">
	<param name="movie" value="./securimage_play.swf?bgcol=#ffffff&amp;icon_file=./images/audio_icon.png&amp;audio_file=./securimage_play.php" />
	</object>
	&nbsp;
	<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 />
	<strong>Enter Code*:</strong><br />
	<input type="text" name="ct_captcha" size="12" maxlength="8" />
  </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').src = './securimage_show.php?sid=' + Math.random();
	}

	function processForm()
	{
		jQuery.ajax({
			url: '<?php echo $_SERVER['PHP_SELF'] ?>',
			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()", 30000);
			} else {
				alert("There was an error with your submission.\n\n" + data.message);
			}
		});

		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: $time<br />"
					 . "Browser: {$_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()
