89 lines
2.2 KiB
PHP
89 lines
2.2 KiB
PHP
<?php
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/**
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* PrivateBin
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*
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* a zero-knowledge paste bin
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*
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* @link https://github.com/PrivateBin/PrivateBin
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* @copyright 2012 Sébastien SAUVAGE (sebsauvage.net)
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* @license https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License
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* @version 1.1
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*/
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namespace PrivateBin\Persistence;
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use Exception;
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use PrivateBin\Json;
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/**
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* DataStore
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*
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* Handles data storage for Data\Filesystem.
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*/
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class DataStore extends AbstractPersistence
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{
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/**
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* first line in file, to protect its contents
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*
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* @const string
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*/
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const PROTECTION_LINE = '<?php http_response_code(403); /*';
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/**
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* store the data
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*
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* @access public
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* @static
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* @param string $filename
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* @param array $data
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* @return bool
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*/
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public static function store($filename, $data)
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{
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$path = self::getPath();
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if (strpos($filename, $path) === 0) {
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$filename = substr($filename, strlen($path));
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}
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try {
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self::_store($filename, self::PROTECTION_LINE . PHP_EOL . Json::encode($data));
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return true;
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} catch (Exception $e) {
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return false;
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}
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}
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/**
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* get the data
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*
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* @access public
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* @static
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* @param string $filename
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* @return stdClass|false $data
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*/
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public static function get($filename)
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{
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return json_decode(substr(file_get_contents($filename), strlen(self::PROTECTION_LINE . PHP_EOL)));
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}
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/**
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* rename a file, prepending the protection line at the beginning
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*
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* @access public
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* @static
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* @param string $srcFile
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* @param string $destFile
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* @param string $prefix (optional)
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* @return void
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*/
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public static function prependRename($srcFile, $destFile, $prefix = '')
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{
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// don't overwrite already converted file
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if (!is_readable($destFile)) {
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$handle = fopen($srcFile, 'r', false, stream_context_create());
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file_put_contents($destFile, $prefix . DataStore::PROTECTION_LINE . PHP_EOL);
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file_put_contents($destFile, $handle, FILE_APPEND);
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fclose($handle);
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}
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unlink($srcFile);
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}
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}
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