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<?php |
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namespace GeminiLabs\SiteReviews\Modules; |
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use GeminiLabs\SiteReviews\Database\SqlQueries; |
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use PasswordHash; |
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/** |
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* @see WP Session Manager (1.2.0) |
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*/ |
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class Session |
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{ |
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const SESSION_COOKIE = '_glsr_session'; |
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/** |
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* @var int |
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*/ |
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protected $expiryTimestamp; |
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/** |
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* @var int |
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*/ |
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protected $expiryTimestampReset; |
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/** |
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* @var array |
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*/ |
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protected $sessionData; |
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/** |
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* @var string |
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*/ |
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protected $sessionId; |
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public function __construct() |
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{ |
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if( $cookieId = filter_input( INPUT_COOKIE, static::SESSION_COOKIE )) { |
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$cookie = explode( '||', stripslashes( $cookieId )); |
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$this->sessionId = preg_replace( '/[^A-Za-z0-9_]/', '', $cookie[0] ); |
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$this->expiryTimestamp = absint( $cookie[1] ); |
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$this->expiryTimestampReset = absint( $cookie[2] ); |
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if( time() > $this->expiryTimestampReset ) { |
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$this->setCookieExpiration(); |
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} |
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} |
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else { |
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$this->sessionId = $this->generateSessionId(); |
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$this->setCookieExpiration(); |
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} |
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$this->getSessionData(); |
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$this->setCookie(); |
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} |
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/** |
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* @return void |
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*/ |
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public function clear() |
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{ |
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$this->setCookieExpiration(); |
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$this->regenerateSessionId( 'and delete session!' ); |
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} |
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/** |
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* @return int|false |
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*/ |
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public function deleteAllSessions() |
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{ |
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return glsr( SqlQueries::class )->deleteAllSessions( static::SESSION_COOKIE ); |
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} |
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/** |
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* @param int $limit |
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* @return void |
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*/ |
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public function deleteExpiredSessions( $limit = 1000 ) |
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{ |
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if( $expiredSessions = implode( "','", $this->getExpiredSessions( $limit ))) { |
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glsr( SqlQueries::class )->deleteExpiredSessions( $expiredSessions ); |
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} |
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} |
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/** |
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* @param string $key |
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* @param string|array $fallback |
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* @param bool|string $unset |
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* @return string|array |
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*/ |
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public function get( $key, $fallback = '', $unset = false ) |
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{ |
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$key = sanitize_key( $key ); |
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$value = isset( $this->sessionData[$key] ) |
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? maybe_unserialize( $this->sessionData[$key] ) |
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: $fallback; |
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if( isset( $this->sessionData[$key] ) && $unset ) { |
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unset( $this->sessionData[$key] ); |
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$this->updateSession(); |
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} |
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return $value; |
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} |
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/** |
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* @param string $key |
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* @param mixed $value |
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* @return mixed |
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*/ |
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public function set( $key, $value ) |
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{ |
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$key = sanitize_key( $key ); |
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$this->sessionData[$key] = maybe_serialize( $value ); |
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$this->updateSession(); |
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return $this->sessionData[$key]; |
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} |
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/** |
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* @return void |
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*/ |
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protected function createSession() |
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{ |
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add_option( $this->getSessionId(), $this->sessionData, '', false ); |
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add_option( $this->getSessionId( 'expires' ), $this->expiryTimestamp, '', false ); |
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} |
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/** |
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* @return void |
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*/ |
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protected function deleteSession() |
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{ |
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delete_option( $this->getSessionId() ); |
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delete_option( $this->getSessionId( 'expires' )); |
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} |
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/** |
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* @return string |
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*/ |
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protected function generateSessionId() |
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{ |
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return md5(( new PasswordHash( 8, false ))->get_random_bytes( 32 )); |
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} |
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/** |
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* @param int $limit |
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* @return array |
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*/ |
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protected function getExpiredSessions( $limit ) |
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{ |
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$expiredSessions = []; |
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$sessions = glsr( SqlQueries::class )->getExpiredSessions( static::SESSION_COOKIE, absint( $limit )); |
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if( !empty( $sessions )) { |
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$now = time(); |
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foreach( $sessions as $session ) { |
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if( $now <= $session->expiration )continue; |
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$expiredSessions[] = $session->name; |
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$expiredSessions[] = str_replace( '_expires_', '_', $session->name ); |
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} |
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} |
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return $expiredSessions; |
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} |
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/** |
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* @param string $separator |
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* @return string |
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*/ |
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protected function getSessionId( $separator = '' ) |
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{ |
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return implode( '_', array_filter( [static::SESSION_COOKIE, $separator, $this->sessionId] )); |
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} |
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/** |
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* @return array |
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*/ |
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protected function getSessionData() |
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{ |
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return $this->sessionData = (array)get_option( $this->getSessionId(), [] ); |
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} |
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/** |
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* @param bool|string $deleteOld |
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* @return void |
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*/ |
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protected function regenerateSessionId( $deleteOld = false ) |
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{ |
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if( $deleteOld ) { |
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$this->deleteSession(); |
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} |
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$this->sessionId = $this->generateSessionId(); |
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$this->setCookie(); |
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} |
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/** |
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* @return void |
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*/ |
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protected function setCookie() |
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{ |
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if( headers_sent() )return; |
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$cookie = $this->sessionId.'||'.$this->expiryTimestamp.'||'.$this->expiryTimestampReset; |
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$cookiePath = preg_replace( '|https?://[^/]+|i', '', trailingslashit( (string)get_option( 'home' ))); |
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setcookie( static::SESSION_COOKIE, $cookie, $this->expiryTimestamp, $cookiePath ); |
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} |
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/** |
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* @return void |
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*/ |
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protected function setCookieExpiration() |
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{ |
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$this->expiryTimestampReset = time() + (24 * 60); // 24 minutes |
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$this->expiryTimestamp = time() + (30 * 60); // 30 minutes |
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} |
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/** |
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* @return void |
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*/ |
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protected function updateSession() |
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{ |
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if( false === get_option( $this->getSessionId() )) { |
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return $this->createSession(); |
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} |
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update_option( $this->getSessionId(), $this->sessionData, false ); |
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} |
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} |
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pryley /
site-reviews
