captcha-module/core/utils/verificationimg.php
2016-03-08 14:47:59 +01:00

107 lines
2.7 KiB
PHP

<?php
/**
* #PHPHEADER_OECAPTCHA_LICENSE_INFORMATION#
*/
// #1428C - spam spider prevention
if (isset($_GET['e_mac'])) {
$emac = $_GET['e_mac'];
} else {
return;
}
require_once '../../../../../bootstrap.php';
if (!function_exists('generateVerificationImg')) {
/**
* Generates image
*
* @param string $mac verification code
*
* @return null
*/
function generateVerificationImg($mac)
{
$width = 80;
$height = 18;
$fontSize = 14;
if (function_exists('imagecreatetruecolor')) {
// GD2
$image = imagecreatetruecolor($width, $height);
} elseif (function_exists('imagecreate')) {
// GD1
$image = imagecreate($width, $height);
} else {
// GD not found
return;
}
$textX = ($width - strlen($mac) * imagefontwidth($fontSize)) / 2;
$textY = ($height - imagefontheight($fontSize)) / 2;
$colors = array();
$colors["text"] = imagecolorallocate($image, 0, 0, 0);
$colors["shadow1"] = imagecolorallocate($image, 200, 200, 200);
$colors["shadow2"] = imagecolorallocate($image, 100, 100, 100);
$colors["background"] = imagecolorallocate($image, 255, 255, 255);
$colors["border"] = imagecolorallocate($image, 0, 0, 0);
imagefill($image, 0, 0, $colors["background"]);
imagerectangle($image, 0, 0, $width - 1, $height - 1, $colors["border"]);
imagestring($image, $fontSize, $textX + 1, $textY + 0, $mac, $colors["shadow2"]);
imagestring($image, $fontSize, $textX + 0, $textY + 1, $mac, $colors["shadow1"]);
imagestring($image, $fontSize, $textX, $textY, $mac, $colors["text"]);
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
}
}
if (!function_exists('strRem')) {
require_once getShopBasePath() . '/core/oxdecryptor.php';
/**
* OXID specific string manipulation method
*
* @param string $value string
*
* @return string
*/
function strRem($value)
{
$decryptor = new oxDecryptor;
$key = oxRegistry::getConfig()->getConfigParam('oecaptchakey');
if (empty($key)) {
$key = getOxConfKey();
}
return $decryptor->decrypt($value, $key);
}
}
if (!function_exists('getOxConfKey')) {
/**
* Get default config key.
*
* @return string
*/
function getOxConfKey()
{
$fileName = getShopBasePath() . '/core/oxconfk.php';
$configFile = new oxConfigFile($fileName);
return $configFile->getVar("sConfigKey");
}
}
$mac = strRem($emac);
generateVerificationImg($mac);