mirror of
https://git.d3data.de/3rdParty/captcha-module.git
synced 2024-11-09 16:43:11 +01:00
107 lines
2.7 KiB
PHP
107 lines
2.7 KiB
PHP
<?php
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/**
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* #PHPHEADER_OECAPTCHA_LICENSE_INFORMATION#
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*/
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// #1428C - spam spider prevention
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if (isset($_GET['e_mac'])) {
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$emac = $_GET['e_mac'];
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} else {
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return;
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}
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require_once '../../../../../bootstrap.php';
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if (!function_exists('generateVerificationImg')) {
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/**
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* Generates image
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*
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* @param string $mac verification code
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*
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* @return null
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*/
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function generateVerificationImg($mac)
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{
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$width = 80;
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$height = 18;
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$fontSize = 14;
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if (function_exists('imagecreatetruecolor')) {
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// GD2
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$image = imagecreatetruecolor($width, $height);
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} elseif (function_exists('imagecreate')) {
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// GD1
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$image = imagecreate($width, $height);
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} else {
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// GD not found
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return;
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}
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$textX = ($width - strlen($mac) * imagefontwidth($fontSize)) / 2;
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$textY = ($height - imagefontheight($fontSize)) / 2;
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$colors = array();
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$colors["text"] = imagecolorallocate($image, 0, 0, 0);
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$colors["shadow1"] = imagecolorallocate($image, 200, 200, 200);
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$colors["shadow2"] = imagecolorallocate($image, 100, 100, 100);
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$colors["background"] = imagecolorallocate($image, 255, 255, 255);
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$colors["border"] = imagecolorallocate($image, 0, 0, 0);
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imagefill($image, 0, 0, $colors["background"]);
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imagerectangle($image, 0, 0, $width - 1, $height - 1, $colors["border"]);
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imagestring($image, $fontSize, $textX + 1, $textY + 0, $mac, $colors["shadow2"]);
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imagestring($image, $fontSize, $textX + 0, $textY + 1, $mac, $colors["shadow1"]);
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imagestring($image, $fontSize, $textX, $textY, $mac, $colors["text"]);
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header('Content-type: image/png');
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imagepng($image);
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imagedestroy($image);
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}
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}
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if (!function_exists('strRem')) {
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require_once getShopBasePath() . '/core/oxdecryptor.php';
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/**
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* OXID specific string manipulation method
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*
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* @param string $value string
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*
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* @return string
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*/
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function strRem($value)
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{
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$decryptor = new oxDecryptor;
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$key = oxRegistry::getConfig()->getConfigParam('oecaptchakey');
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if (empty($key)) {
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$key = getOxConfKey();
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}
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return $decryptor->decrypt($value, $key);
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}
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}
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if (!function_exists('getOxConfKey')) {
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/**
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* Get default config key.
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*
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* @return string
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*/
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function getOxConfKey()
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{
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$fileName = getShopBasePath() . '/core/oxconfk.php';
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$configFile = new oxConfigFile($fileName);
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return $configFile->getVar("sConfigKey");
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}
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}
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$mac = strRem($emac);
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generateVerificationImg($mac);
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