MultisiteSession.php

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<?php
 
namespace Ubiquity\utils\http\session;
 
use Ubiquity\cache\CacheManager;
use Ubiquity\utils\base\UFileSystem;
use Ubiquity\utils\http\UCookie;
 
class MultisiteSession extends AbstractSession {
    private string $folder;
    private string $id;
    const SESSION_ID = 'multi_session_id';
 
    private function getKey($key): string {
        return \md5 ( $key );
    }
 
    private function getFilename($key): string {
        return $this->folder . $this->id . \DS . $this->getKey ( $key ) . '.cache.ser';
    }
 
    protected function generateId(): string {
        return \bin2hex ( \random_bytes ( 32 ) );
    }
 
    public function set(string $key, $value) {
        $val = \serialize ( $value );
        $tmp = "/tmp/$key." . \uniqid ( '', true ) . '.tmp';
        \file_put_contents ( $tmp, $val, LOCK_EX );
        \rename ( $tmp, $this->getFilename ( $key ) );
    }
 
    public function getAll(): array {
        $files = UFileSystem::glob_recursive ( $this->folder . \DS . '*' );
        $result = [ ];
        foreach ( $files as $file ) {
            $result [] = include $file;
        }
        return $result;
    }
 
    public function get(string $key, $default = null) {
        $filename = $this->getFilename ( $key );
        if (\file_exists ( $filename )) {
            $f = \file_get_contents ( $filename );
            $val = \unserialize ( $f );
        }
        return isset ( $val ) ? $val : $default;
    }
 
    public function start(string $name = null, $root = null) {
        $this->name = $name;
        if (! isset ( $root )) {
            $this->folder = \ROOT . \DS . CacheManager::getCacheDirectory () . \DS . 'session' . \DS;
        } else {
            $this->folder = $root . \DS . 'session' . \DS;
        }
        if (isset ( $name )) {
            $this->folder .= $name . \DS;
        }
        if (! UCookie::exists ( self::SESSION_ID )) {
            $id = $this->generateId ();
            UCookie::set ( self::SESSION_ID, $id );
            $this->id = $id;
        } else {
            $this->id = UCookie::get ( self::SESSION_ID );
        }
        $this->verifyCsrf->start ();
        UFileSystem::safeMkdir ( $this->folder . $this->id . \DS );
    }
 
    public function exists($key): bool {
        return file_exists ( $this->getFilename ( $key ) );
    }
 
    public function terminate(): void {
        $this->verifyCsrf->clear ();
        UFileSystem::delTree ( $this->folder . $this->id . \DS );
    }
 
    public function isStarted(): bool {
        return isset ( $this->id );
    }
 
    public function delete($key) {
        \unlink ( $this->getFilename ( $key ) );
    }
    
    public function regenerateId(bool $deleteOldSession=false): bool {
        if($deleteOldSession){
            $this->terminate();
            $this->start($this->name,\rtrim($this->folder,\DS . 'session' . \DS));
            return true;
        }
        $newId=$this->generateId();
        $this->verifyCsrf->clear();
        UCookie::set ( self::SESSION_ID, $newId );
        $oldId=$this->id;
        $this->id = $newId;
        $this->verifyCsrf->start ();
        return UFileSystem::xmove($this->folder . $oldId . \DS, $this->folder . $newId . \DS);
    }
 
    public function visitorCount(): int {
        return \count ( \scandir ( $this->folder . $this->id . \DS ) );
    }
}