45 lines
1.2 KiB
PHP
45 lines
1.2 KiB
PHP
<?php
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/**
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* loginManager/lmUtils.php
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* @desc utilities for correct functioning
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* @version 1.0
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* @author Fándly Gergő Zoltán
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* @copy 2017 Fándly Gergő Zoltán
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*/
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class lmUtils{
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/**
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* generate a random string with special character
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* @param int $length length of the requested string
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* @return string
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*/
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public static function randomString($length){
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$charset="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_-=+\?/.>,<";
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$charsetLength=strlen($charset);
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$string="";
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for($i=0; $i<$length; $i++){
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$string.=$charset[rand(0, $charsetLength-1)];
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}
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return $string;
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}
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/**
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* validate google ReCaptcha
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* @param string $secretkey secret key to captcha API
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* @param string $response response of API
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* @return bool
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*/
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public static function validateCaptcha($secretkey, $response){
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$verify=file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$secretkey."&response=".$response);
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$data=json_decode($verify);
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if($data->success){
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return true;
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}
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else{
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return false;
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}
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}
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}
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?>
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