Hi,
I would like to integrate a new captcha script with 4image. This new captcha uses session.. so I am not able to integrate it with 4image..
I guess, the changes will not be much.. Could anyone please let me know what changes should I make to integrate it..
I am attaching the new captcha file and one working form.php .. I need to integrate it in my contact.php page..
1. CaptchaSecurityImages.php file..
<?php
session_start();
/*
* File: CaptchaSecurityImages.php
* Author: Simon Jarvis
* Copyright: 2006 Simon Jarvis
* Date: 03/08/06
* Updated: 07/02/07
* Requirements: PHP 4/5 with GD and FreeType libraries
* Link: http://www.white-hat-web-design.co.uk/articles/php-captcha.php
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
* http://www.gnu.org/licenses/gpl.html
*
*/
class CaptchaSecurityImages {
var $font = 'monofont.ttf';
function generateCode($characters) {
/* list all possible characters, similar looking characters and vowels have been removed */
$possible = '23456789bcdfghjkmnpqrstvwxyz';
$code = '';
$i = 0;
while ($i < $characters) {
$code .= substr($possible, mt_rand(0, strlen($possible)-1), 1);
$i++;
}
return $code;
}
function CaptchaSecurityImages($width='120',$height='40',$characters='6') {
$code = $this->generateCode($characters);
/* font size will be 75% of the image height */
$font_size = $height * 0.75;
$image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');
/* set the colours */
$background_color = imagecolorallocate($image, 255, 255, 255);
$text_color = imagecolorallocate($image, rand(140,180), rand(140,180), rand(140,180));
$noise_color = imagecolorallocate($image, 180, 180, 180);
/* generate random dots in background */
for( $i=0; $i<($width*$height)/3; $i++ ) {
imagefilledellipse($image, mt_rand(0,$width), mt_rand(0,$height), 1, 1, $noise_color);
}
/* generate random lines in background */
for( $i=0; $i<($width*$height)/150; $i++ ) {
imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
}
/* create textbox and add text */
$textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');
$x = ($width - $textbox[4])/2;
$y = ($height - $textbox[5])/2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font , $code) or die('Error in imagettftext function');
/* output captcha image to browser */
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
$_SESSION['security_code'] = $code;
}
}
$width = 160;//isset($_GET['width']) ? $_GET['width'] : '160';
$height = 40;//isset($_GET['height']) ? $_GET['height'] : '40';
$characters = 5;//isset($_GET['characters']) && $_GET['characters'] > 1 ? $_GET['characters'] : '6';
$captcha = new CaptchaSecurityImages($width,$height,$characters);
?>
2. Form.php ( works fine with this above script)
<?php
session_start();
if( isset($_POST['submit'])) {
if( $_SESSION['security_code'] == $_POST['security_code'] && !empty($_SESSION['security_code'] ) ) {
// Insert you code for processing the form here, e.g emailing the submission, entering it into a database.
echo 'Thank you. Your message said "'.$_POST['message'].'"';
unset($_SESSION['security_code']);
} else {
// Insert your code for showing an error message here
echo 'Sorry, you have provided an invalid security code';
}
} else {
?>
<form action="form.php" method="post">
<label for="name">Name: </label><input type="text" name="name" id="name" /><br />
<label for="email">Email: </label><input type="text" name="email" id="email" /><br />
<label for="message">Message: </label><textarea rows="5" cols="30" name="message" id="message"></textarea><br />
<img src="CaptchaSecurityImages.php?width=100&height=40&characters=5" /><br />
<label for="security_code">Security Code: </label><input id="security_code" name="security_code" type="text" /><br />
<input type="submit" name="submit" value="Submit" />
</form>
<?php
}
?>
3. My contact.php file which needs to be modified to integrate it..
<?php
/**************************************************************************
* *
* 4images - A Web Based Image Gallery Management System *
* ---------------------------------------------------------------- *
* *
* File: contact.php *
* Copyright: (C) 2002 - 2010 Jan Sorgalla *
* Email: jan@4homepages.de *
* Web: http://www.4homepages.de *
* Scriptversion: 1.7.7 *
* *
* Never released without support from: Nicky (http://www.nicky.net) *
* *
**************************************************************************
* *
* Dieses Script ist KEINE Freeware. Bitte lesen Sie die Lizenz- *
* bedingungen (Lizenz.txt) für weitere Informationen. *
* --------------------------------------------------------------- *
* This script is NOT freeware! Please read the Copyright Notice *
* (Licence.txt) for further information. *
* *
*************************************************************************/
$main_template = "contact";
define('GET_CACHES', 1);
define('ROOT_PATH', './');
define('MAIN_SCRIPT', __FILE__);
include(ROOT_PATH.'global.php');
require(ROOT_PATH.'includes/sessions.php');
$user_access = get_permission();
include(ROOT_PATH.'includes/page_header.php');
$txt_clickstream = "Contact";
if ($action == "") {
$action = "mailform";
}
$content = "";
$sendprocess = 0;
if ($action == "emailSiteOwner") {
$error = 0;
$mail_to = (isset($_POST['emails'])) ? $_POST['emails'] : $config['site_email'];
$sender_name = stripslashes(trim($_POST['sender_name']));
$sender_email = stripslashes(trim($_POST['sender_email']));
$subject = un_htmlspecialchars(trim($HTTP_POST_VARS['subject']));
$message = un_htmlspecialchars(trim($HTTP_POST_VARS['message']));
$captcha = (isset($HTTP_POST_VARS['security_code'])) ? un_htmlspecialchars(trim($HTTP_POST_VARS['security_code'])) : "";
if ($sender_name == "" || $sender_email == "" || $subject == "" || $message == "") {
$msg = $lang['lostfield_error'];
$sendprocess = 1;
$error = 1;
}
$check = "/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@([a-zA-Z0-9-]+\.)+([a-zA-Z]{2,4})$/";
if(!isset($sender_email) OR $sender_email == "" OR !preg_match($check,$sender_email))
{
$msg .= (($msg != "") ? "<br />" : "").$lang['invalid_email_format'];
$sendprocess = 1;
$error = 1;
}
echo "eststtstss ==> " .$session_info['security_code'];
if ($captcha_enable_contact && !captcha_validate($captcha)) {
$msg .= (($msg != "") ? "<br />" : "").$lang['captcha_required'];
$error = 1;
}
if (!$error) {
$sender_user_name = $sender_name;
$sender_user_email = $sender_email;
// Start Emailer
include(ROOT_PATH.'includes/email.php');
$site_email = new Email();
$site_email->set_from($sender_user_email, $sender_user_name);
$site_email->set_to($mail_to);
$site_email->set_subject($subject);
$site_email->register_vars(array(
"sender_user_name" => $sender_user_name,
"sender_user_email" => $sender_user_email,
"message" => $message,
"site_name" => $config['site_name']
));
$site_email->set_body("mailform_message", $config['language_dir']);
$site_email->send_email();
$msg = 'Email has been sent. I will contact you as soon as possible. Thank you !!' ;
}
else {
$action = "mailform";
}
}
if ($action == "mailform") {
if (!$sendprocess) {
$subject = "";
$message = "";
}
$sender_name = ($user_info['user_level'] != GUEST) ? $user_info['user_name'] : "";
$sender_email = ($user_info['user_level'] != GUEST) ? $user_info['user_email'] : "";
$site_template->register_vars(array(
"sender_name" => $sender_name,
"sender_email" => $sender_email,
"url_form" => $site_sess->url(ROOT_PATH."contact.php"),
"subject" => htmlspecialchars($subject),
"message" => htmlspecialchars($message),
"captcha_contact" => (bool)$captcha_enable_contact,
"lang_captcha" => $lang['captcha'],
"lang_captcha_desc" => $lang['captcha_desc'],
"lang_mail_to" => $lang['mail_to'],
"lang_your_name" => 'Name:',
"lang_your_mail" => 'Email:',
"lang_subject" => 'Subject:',
"lang_message" => 'Message:',
"lang_submit" => $lang['submit'],
"lang_reset" => $lang['reset'],
));
$content = $site_template->parse_template("contact_mailform");
}
//-----------------------------------------------------
//--- Clickstream -------------------------------------
//-----------------------------------------------------
$clickstream = "<span class=\"clickstream\"><a href=\"".$site_sess->url(ROOT_PATH."index.php")."\" class=\"clickstream\">".$lang['home']."</a>".$config['category_separator'].$txt_clickstream."</span>";
//-----------------------------------------------------
//--- Print Out ---------------------------------------
//-----------------------------------------------------
$site_template->register_vars(array(
"content" => $content,
"msg" => $msg,
"clickstream" => $clickstream
));
$site_template->print_template($site_template->parse_template($main_template));
include(ROOT_PATH.'includes/page_footer.php');
?>
I have already modified my contact_form.html template file to include this..
{if captcha_contact}
<tr>
<td width="80" valign="top"><b><!--{lang_captcha}--><label for="security_code">Security Code: </label></b></td>
<!-- <td>{recaptcha}</td> -->
<td><img src="CaptchaSecurityImages.php?width=100&height=40&characters=5" /><br /><br />
<input id="security_code" name="security_code" type="text" /><br />
</td>
</tr>
{endif captcha_contact}
I have also attached required .ttf file here.
Any help will be appreciated..
Thank you
batu544