commit vendor

vendor/wapmorgan/unified-archive/src/Formats/Gzip.php

@@ -0,0 +1,77 @@
+<?php
+namespace wapmorgan\UnifiedArchive\Formats;
+
+use Exception;
+
+class Gzip extends OneFileFormat
+{
+    const FORMAT_SUFFIX = 'gz';
+
+    /**
+     * @param string $file GZipped file
+     * @return array|false Array with 'mtime' and 'size' items
+     */
+    public static function gzipStat($file)
+    {
+        $fp = fopen($file, 'rb');
+        if (filesize($file) < 18 || strcmp(fread($fp, 2), "\x1f\x8b")) {
+            return false;  // Not GZIP format (See RFC 1952)
+        }
+        $method = fread($fp, 1);
+        $flags = fread($fp, 1);
+        $stat = unpack('Vmtime', fread($fp, 4));
+        fseek($fp, -4, SEEK_END);
+        $stat += unpack('Vsize', fread($fp, 4));
+        fclose($fp);
+
+        return $stat;
+    }
+
+    /**
+     * Gzip constructor.
+     *
+     * @param $archiveFileName
+     *
+     * @throws \Exception
+     */
+    public function __construct($archiveFileName)
+    {
+        parent::__construct($archiveFileName);
+        $stat = static::gzipStat($archiveFileName);
+        if ($stat === false) {
+            throw new Exception('Could not open Gzip file');
+        }
+        $this->uncompressedSize = $stat['size'];
+        $this->modificationTime = $stat['mtime'];
+    }
+
+    /**
+     * @param string $fileName
+     *
+     * @return string|false
+     */
+    public function getFileContent($fileName = null)
+    {
+        return gzdecode(file_get_contents($this->fileName));
+    }
+
+    /**
+     * @param string $fileName
+     *
+     * @return bool|resource|string
+     */
+    public function getFileResource($fileName = null)
+    {
+        return gzopen($this->fileName, 'rb');
+    }
+
+    /**
+     * @param $data
+     *
+     * @return mixed|string
+     */
+    protected static function compressData($data)
+    {
+        return gzencode($data);
+    }
+}