d83542e03e
moved sitewide into options portion of the config option csrf protection for contact form under sitewide config option changed register to 1 hour token
66 lines
2.4 KiB
PHP
66 lines
2.4 KiB
PHP
<?php
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// Make sure we are called from index.php
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if (!defined('SECURITY')) die('Hacking attempt');
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class CSRFToken Extends Base {
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/**
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* Gets a basic CSRF token for this user/type and time chunk
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* @param string user User; for hash seed, if username isn't available use IP
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* @param string type Type of token; for hash seed, should be unique per page/use
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* @param string timing Which date() chars we add to the seed; default month day year hour minute ie same minute only
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* @param string seedExtra Extra information to add to the seed
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* @return string CSRF token
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*/
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public function getBasic($user, $type, $timing='mdyHi', $seedExtra='') {
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$date = date('m/d/y/H/i/s');
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$data = explode('/', $date);
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$month = $data[0]; $day = $data[1]; $year = $data[2];
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$hour = $data[3]; $minute = $data[4]; $second = $data[5];
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$salt1 = $this->salt; $salt2 = $this->salty; $seed = $salt1;
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$lead = $this->config['csrf']['options']['leadtime'];
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if ($lead >= 11) { $lead = 10; }
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if ($lead <= 0) { $lead = 3; }
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if ($minute == 59 && $second > (60-$lead)) {
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$minute = 0;
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$fhour = ($hour == 23) ? $hour = 0 : $hour+=1;
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}
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$seed.= (strpos($timing, 'm') !== false) ? $month : '';
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$seed.= (strpos($timing, 'd') !== false) ? $day : '';
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$seed.= (strpos($timing, 'y') !== false) ? $year : '';
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$seed.= (strpos($timing, 'H') !== false) ? $hour : '';
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$seed.= (strpos($timing, 'i') !== false) ? $minute : '';
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$seed.= (strpos($timing, 's') !== false) ? $second : '';
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$seed.= ($seedExtra !== '') ? $seedExtra.$salt2 : $salt2;
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return $this->getHash($seed);
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}
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/**
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*
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* @param unknown $dowhat
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* @return string
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*/
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public static function getDescriptionImageHTML($dowhat="try") {
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$string = "<img src='site_assets/mpos/images/questionmark.png' ";
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$string.= "title='Tokens are used to help us mitigate attacks; Simply ";
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$string.= htmlentities(strip_tags($dowhat));
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$string.= " again to continue' width='20px' height='20px'>";
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return $string;
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}
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private function getHash($string) {
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return hash('sha256', $this->salty.$string.$this->salt);
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}
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}
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$csrftoken = new CSRFToken();
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$csrftoken->setDebug($debug);
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$csrftoken->setMysql($mysqli);
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$csrftoken->setSalt(SALT);
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$csrftoken->setSalty(SALTY);
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$csrftoken->setMail($mail);
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$csrftoken->setUser($user);
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$csrftoken->setToken($oToken);
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$csrftoken->setConfig($config);
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$csrftoken->setErrorCodes($aErrorCodes);
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?>
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