Added composer support and added namespace usage

Author: apfelbox

README.md

@@ -9,6 +9,11 @@ This class is for providing downloads of files out of PHP, for example if you wa
 
 # Usage
 
+The examples assume, that you have included the namespace:
+```php
+use Apfelbox\FileDownload\FileDownload;
+```
+
 
 ## Create a download for a file on your file system
 ```php

composer.json

@@ -0,0 +1,24 @@
+{
+    "name":        "apfelbox/php-file-download",
+    "type":        "library",
+    "description": "A library to help with creating downloads for files in PHP",
+    "keywords":    ["download"],
+    "homepage":    "https://github.com/apfelbox/PHP-File-Download",
+    "license":     "MIT",
+    "authors": [
+        {
+            "name":     "Jannik Zschiesche",
+            "email":    "hello@apfelbox.net",
+            "homepage": "http://apfelbox.net"
+        }
+    ],
+    "require": {
+        "php": ">=5.3",
+        "skyzyx/mimetypes": "~1.1"
+    },
+    "autoload": {
+        "psr-4": {
+            "Apfelbox\\FileDownload\\": "src/"
+        }
+    }
+}

FileDownload.php renamed to src/FileDownload.php

@@ -7,6 +7,9 @@
  * @license MIT
  */
 
+namespace Apfelbox\FileDownload;
+
+use Skyzyx\Components\Mimetypes\Mimetypes;
 
 /**
  * Provides a simple way to create file downloads in PHP
@@ -27,13 +30,13 @@ class FileDownload
      *
      * @param resource $filePointer
      *
-     * @throws InvalidArgumentException
+     * @throws \InvalidArgumentException
      */
     public function __construct ($filePointer)
     {
         if (!is_resource($filePointer))
         {
-            throw new InvalidArgumentException("You must pass a file pointer to the ctor");
+            throw new \InvalidArgumentException("You must pass a file pointer to the ctor");
         }
 
         $this->filePointer = $filePointer;
@@ -81,20 +84,11 @@ public function sendDownload ($filename)
      */
     private function getMimeType ($fileName)
     {
-        switch (pathinfo($fileName, PATHINFO_EXTENSION))
-        {
-            case "pdf": return "application/pdf";
-            case "exe": return "application/octet-stream";
-            case "zip": return "application/zip";
-            case "doc": return "application/msword";
-            case "xls": return "application/vnd.ms-excel";
-            case "ppt": return "application/vnd.ms-powerpoint";
-            case "gif": return "image/gif";
-            case "png": return "image/png";
-            case "jpeg":
-            case "jpg": return "image/jpg";
-            default: return "application/force-download";
-        }
+        $fileExtension  = pathinfo($fileName, PATHINFO_EXTENSION);
+        $mimeTypeHelper = Mimetypes::getInstance();
+        $mimeType       = $mimeTypeHelper->fromExtension($fileExtension);
+
+        return !is_null($mimeType) ? $mimeType : "application/force-download";
     }