233 lines
8.7 KiB
PHP
Executable file
233 lines
8.7 KiB
PHP
Executable file
<?php
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error_reporting(E_ALL);
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ini_set('display_errors', 1);
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session_start(); // this MUST be called prior to any output including whitespaces and line breaks!
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$GLOBALS['DEBUG_MODE'] = 1;
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// CHANGE TO 0 TO TURN OFF DEBUG MODE
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// IN DEBUG MODE, ONLY THE CAPTCHA CODE IS VALIDATED, AND NO EMAIL IS SENT
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$GLOBALS['ct_recipient'] = 'YOU@EXAMPLE.COM'; // Change to your email address! Make sure DEBUG_MODE above is 0 for mail to send!
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$GLOBALS['ct_msg_subject'] = 'Securimage Test Contact Form';
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?>
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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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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<link rel="stylesheet" href="securimage.css" media="screen">
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<style type="text/css">
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<!--
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div.error { display: block; color: #f00; font-weight: bold; font-size: 1.2em; }
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span.error { display: block; color: #f00; font-style: italic; }
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.success { color: #00f; font-weight: bold; font-size: 1.2em; }
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form label { display: block; font-weight: bold; }
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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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<?php
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process_si_contact_form(); // Process the form, if it was submitted
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if (isset($_SESSION['ctform']['error']) && $_SESSION['ctform']['error'] == true): /* The last form submission had 1 or more errors */ ?>
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<div class="error">There was a problem with your submission. Errors are displayed below in red.</div><br>
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<?php elseif (isset($_SESSION['ctform']['success']) && $_SESSION['ctform']['success'] == true): /* form was processed successfully */ ?>
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<div class="success">The captcha was correct and the message has been sent! The captcha was solved in <?php echo $_SESSION['ctform']['timetosolve'] ?> seconds.</div><br />
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<?php endif; ?>
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<form method="post" action="<?php echo htmlspecialchars($_SERVER['REQUEST_URI'] . $_SERVER['QUERY_STRING']) ?>" id="contact_form">
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<input type="hidden" name="do" value="contact">
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<p>
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<label for="ct_name">Name*:</label>
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<?php echo @$_SESSION['ctform']['name_error'] ?>
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<input type="text" id="ct_name" name="ct_name" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_name']) ?>">
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</p>
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<p>
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<label for="ct_email">Email*:</label>
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<?php echo @$_SESSION['ctform']['email_error'] ?>
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<input type="text" id="ct_email" name="ct_email" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_email']) ?>">
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</p>
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<p>
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<label for="ct_URL">URL:</label>
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<?php echo @$_SESSION['ctform']['URL_error'] ?>
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<input type="text" id="ct_URL" name="ct_URL" size="35" value="<?php echo htmlspecialchars(@$_SESSION['ctform']['ct_URL']) ?>">
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</p>
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<p>
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<label for="ct_message">Message*:</label>
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<?php echo @$_SESSION['ctform']['message_error'] ?>
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<textarea id="ct_message" name="ct_message" rows="12" cols="60"><?php echo htmlspecialchars(@$_SESSION['ctform']['ct_message']) ?></textarea>
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</p>
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<div>
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<?php
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// show captcha HTML using Securimage::getCaptchaHtml()
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require_once 'securimage.php';
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$options = array();
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$options['input_name'] = 'ct_captcha'; // change name of input element for form post
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$options['disable_flash_fallback'] = false; // allow flash fallback
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if (!empty($_SESSION['ctform']['captcha_error'])) {
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// error html to show in captcha output
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$options['error_html'] = $_SESSION['ctform']['captcha_error'];
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}
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echo "<div id='captcha_container_1'>\n";
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echo Securimage::getCaptchaHtml($options);
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echo "\n</div>\n";
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/*
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// To render some or all captcha components individually
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$options['input_name'] = 'ct_captcha_2';
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$options['image_id'] = 'ct_captcha_2';
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$options['input_id'] = 'ct_captcha_2';
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$options['namespace'] = 'captcha2';
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echo "<br>\n<div id='captcha_container_2'>\n";
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echo Securimage::getCaptchaHtml($options, Securimage::HTML_IMG);
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echo Securimage::getCaptchaHtml($options, Securimage::HTML_ICON_REFRESH);
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echo Securimage::getCaptchaHtml($options, Securimage::HTML_AUDIO);
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echo '<div style="clear: both"></div>';
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echo Securimage::getCaptchaHtml($options, Securimage::HTML_INPUT_LABEL);
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echo Securimage::getCaptchaHtml($options, Securimage::HTML_INPUT);
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echo "\n</div>";
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*/
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?>
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</div>
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<p>
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<br>
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<input type="submit" value="Submit Message">
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</p>
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</form>
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</fieldset>
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</body>
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</html>
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<?php
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// The form processor PHP code
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function process_si_contact_form()
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{
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$_SESSION['ctform'] = array(); // re-initialize the form session data
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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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$errors['email_error'] = 'Email address is required';
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} else if ( !preg_match('/^(?:[\w\d-]+\.?)+@(?:(?:[\w\d]\-?)+\.)+\w{2,63}$/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'] = 'Your message must be longer than 20 characters';
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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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$errors['captcha_error'] = 'Incorrect security code entered<br />';
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}
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}
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if (sizeof($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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. "<em>Name: $name</em><br />"
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. "<em>Email: $email</em><br />"
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. "<em>URL: $URL</em><br />"
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. "<em>Message:</em><br />"
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. "<pre>$message</pre>"
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. "<br /><br /><em>IP Address:</em> {$_SERVER['REMOTE_ADDR']}<br />"
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. "<em>Time:</em> $time<br />"
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. "<em>Browser:</em> " . htmlspecialchars($_SERVER['HTTP_USER_AGENT']) . "<br />";
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$message = wordwrap($message, 70);
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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: {$email}\r\nContent-type: text/html; charset=UTF-8\r\nMIME-Version: 1.0");
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}
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$_SESSION['ctform']['timetosolve'] = $securimage->getTimeToSolve();
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$_SESSION['ctform']['error'] = false; // no error with form
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$_SESSION['ctform']['success'] = true; // message sent
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} else {
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// save the entries, this is to re-populate the form
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$_SESSION['ctform']['ct_name'] = $name; // save name from the form submission
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$_SESSION['ctform']['ct_email'] = $email; // save email
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$_SESSION['ctform']['ct_URL'] = $URL; // save URL
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$_SESSION['ctform']['ct_message'] = $message; // save message
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foreach($errors as $key => $error) {
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// set up error messages to display with each field
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$_SESSION['ctform'][$key] = "<span class=\"error\">$error</span>";
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}
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$_SESSION['ctform']['error'] = true; // set error floag
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}
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} // POST
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}
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$_SESSION['ctform']['success'] = false; // clear success value after running
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