first commit

common/Files/Response/RangeFileResponse.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Common\Files\Response;
+
+use Common\Files\FileEntry;
+
+class RangeFileResponse implements FileResponse
+{
+    /**
+     * @param FileEntry $entry
+     * @param array $options
+     * @return mixed
+     */
+    public function make(FileEntry $entry, $options)
+    {
+        $disk   = $entry->getDisk();
+        $size	= $disk->size($entry->getStoragePath());
+        $time	= date('r', $entry->updated_at->timestamp);
+        $fm		= $disk->getDriver()->readStream($entry->getStoragePath());
+        $begin	= 0;
+        $end	= $size - 1;
+
+        if (isset($_SERVER['HTTP_RANGE']))
+        {
+            if (preg_match('/bytes=\h*(\d+)-(\d*)[\D.*]?/i', $_SERVER['HTTP_RANGE'], $matches))
+            {
+                $begin	= intval($matches[1]);
+                if (!empty($matches[2]))
+                {
+                    $end = intval($matches[2]);
+                }
+            }
+        }
+
+        if (isset($_SERVER['HTTP_RANGE']))
+        {
+            header('HTTP/1.1 206 Partial Content');
+        }
+        else
+        {
+            header('HTTP/1.1 200 OK');
+        }
+
+        header("Content-Type: $entry->mime");
+        header('Cache-Control: public, must-revalidate, max-age=0');
+        header('Pragma: no-cache');
+        header('Accept-Ranges: bytes');
+        header('Content-Length:' . (($end - $begin) + 1));
+        if (isset($_SERVER['HTTP_RANGE']))
+        {
+            header("Content-Range: bytes $begin-$end/$size");
+        }
+        header("Content-Disposition: inline; filename={$entry->getNameWithExtension()}");
+        header("Content-Transfer-Encoding: binary");
+        header("Last-Modified: $time");
+
+        $cur	= $begin;
+        fseek($fm, $begin, 0);
+
+        while(!feof($fm) && $cur <= $end && (connection_status() == 0))
+        {
+            print fread($fm, min(1024 * 16, ($end - $cur) + 1));
+            $cur += 1024 * 16;
+        }
+    }
+}