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: / opt / psa / admin / plib / modules / monitoring / vendor / webimpress / safe-writer / src /
Filename : FileWriter.php
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<?php

declare (strict_types=1);
namespace PleskMonitoring\Webimpress\SafeWriter;

use function chmod;
use function dirname;
use function file_put_contents;
use function is_writable;
use function realpath;
use function rename;
use function restore_error_handler;
use function set_error_handler;
use function stripos;
use function tempnam;
use function umask;
use function unlink;
use const PHP_OS;
final class FileWriter
{
    /**
     * @throws Exception\ExceptionInterface
     */
    public static function writeFile(string $file, string $content, int $chmod = 0666) : void
    {
        $dir = dirname($file);
        // suppress notice thrown when falling back to system temp dir
        set_error_handler(static function () : bool {
            return \true;
        });
        try {
            $tmp = tempnam($dir, 'wsw');
            if ($tmp === \false) {
                throw Exception\RuntimeException::unableToCreateTemporaryFile($dir);
            }
            if (dirname($tmp) !== realpath($dir)) {
                unlink($tmp);
                throw Exception\RuntimeException::unableToCreateTemporaryFile($dir);
            }
            if (file_put_contents($tmp, $content) === \false) {
                unlink($tmp);
                throw Exception\WriteContentException::unableToWriteContent($tmp);
            }
            if (chmod($tmp, $chmod & ~umask()) === \false) {
                unlink($tmp);
                throw Exception\ChmodException::unableToChangeChmod($tmp);
            }
            // On windows try again if rename was not successful but target file is writable.
            while (rename($tmp, $file) === \false) {
                if (is_writable($file) && stripos(PHP_OS, 'WIN') === 0) {
                    continue;
                }
                unlink($tmp);
                throw Exception\RenameException::unableToMoveFile($tmp, $file);
            }
        } finally {
            restore_error_handler();
        }
    }
}