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FileObject.php
91 lines
| 1 | <?php |
| 2 | |
| 3 | namespace WPStaging\Framework\Filesystem; |
| 4 | |
| 5 | use WPStaging\Core\WPStaging; |
| 6 | use WPStaging\Framework\Job\Exception\DiskNotWritableException; |
| 7 | |
| 8 | /** |
| 9 | * Class FileObject |
| 10 | * |
| 11 | * For making codebase memory efficient and making sure on Windows OS, we don't run into permission issue due to file lock, |
| 12 | * after working on the instance of this class, assign null to it. |
| 13 | */ |
| 14 | class FileObject extends AbstractFileObject |
| 15 | { |
| 16 | const AVERAGE_LINE_LENGTH = 4096; |
| 17 | |
| 18 | /** |
| 19 | * @throws DiskNotWritableException |
| 20 | * @throws FilesystemExceptions |
| 21 | */ |
| 22 | public function __construct($fullPath, $openMode = self::MODE_READ) |
| 23 | { |
| 24 | $fullPath = untrailingslashit($fullPath); |
| 25 | |
| 26 | if (empty($fullPath)) { |
| 27 | throw new DiskNotWritableException("Empty path given. Please contact support@wp-staging.com"); |
| 28 | } |
| 29 | |
| 30 | if (!file_exists($fullPath)) { |
| 31 | WPStaging::make(Filesystem::class)->mkdir(dirname($fullPath), true); |
| 32 | } |
| 33 | |
| 34 | try { |
| 35 | parent::__construct($fullPath, $openMode); |
| 36 | } catch (\Exception $e) { |
| 37 | // If this fails, it will throw an exception. |
| 38 | WPStaging::make(DiskWriteCheck::class)->testDiskIsWriteable(); |
| 39 | |
| 40 | // If it didn't fail due to disk write check, re-throw |
| 41 | throw $e; |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * @param string $str |
| 47 | * @param int|null $length |
| 48 | * @return false|int False on error, number of bytes written on success |
| 49 | */ |
| 50 | public function fwriteSafe(string $str, $length = null) |
| 51 | { |
| 52 | // Not sure if we need mbstring_binary_safe_encoding. If not, delete it as we already open file with binary mode. |
| 53 | mbstring_binary_safe_encoding(); |
| 54 | |
| 55 | $strLen = strlen($str); |
| 56 | $writtenBytes = $length !== null ? $this->fwrite($str, $length) : $this->fwrite($str); |
| 57 | reset_mbstring_encoding(); |
| 58 | |
| 59 | if ($strLen !== $writtenBytes) { |
| 60 | return false; |
| 61 | } |
| 62 | |
| 63 | return $writtenBytes; |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * @param int $lines |
| 68 | * @return array |
| 69 | * |
| 70 | * @throws Exception |
| 71 | * @todo DRY /Framework/Utils/Cache/BufferedCache.php |
| 72 | */ |
| 73 | public function readBottomLines(int $lines): array |
| 74 | { |
| 75 | $this->seek(PHP_INT_MAX); |
| 76 | $lastLine = $this->key(); |
| 77 | $offset = $lastLine - $lines; |
| 78 | if ($offset < 0) { |
| 79 | $offset = 0; |
| 80 | } |
| 81 | |
| 82 | $allLines = new \LimitIterator($this, $offset, $lastLine); |
| 83 | return array_reverse(array_values(iterator_to_array($allLines))); |
| 84 | } |
| 85 | |
| 86 | protected function isWindowsOs(): bool |
| 87 | { |
| 88 | return WPStaging::isWindowsOs(); |
| 89 | } |
| 90 | } |
| 91 |