From 7c6acd59c5016cea4f73490c755d92cf31b682d4 Mon Sep 17 00:00:00 2001
From: Sipke Schoorstra <sipke@ideliverable.com>
Date: Fri, 7 Nov 2014 16:33:10 -0800
Subject: [PATCH] Changing mime type provider implementation to use
 System.Web.MimeMapping.

---
 .../Media/ConfigurationMimeTypeProvider.cs    | 71 +++----------------
 1 file changed, 8 insertions(+), 63 deletions(-)

diff --git a/src/Orchard/FileSystems/Media/ConfigurationMimeTypeProvider.cs b/src/Orchard/FileSystems/Media/ConfigurationMimeTypeProvider.cs
index fde2042ee..5e2585fec 100644
--- a/src/Orchard/FileSystems/Media/ConfigurationMimeTypeProvider.cs
+++ b/src/Orchard/FileSystems/Media/ConfigurationMimeTypeProvider.cs
@@ -1,72 +1,17 @@
-using System;
-using System.IO;
-using System.Linq;
-using System.Xml.Linq;
-using System.Xml.XPath;
-using Microsoft.Win32;
-using Orchard.Caching;
+using System.Web;
 
 namespace Orchard.FileSystems.Media {
     /// <summary>
-    /// Returns the mime-type by looking into IIS configuration and the Registry
+    /// Returns the mime-type of the specified file path.
     /// </summary>
     public class ConfigurationMimeTypeProvider : IMimeTypeProvider {
-        private readonly ICacheManager _cacheManager;
-
-        public ConfigurationMimeTypeProvider(ICacheManager cacheManager) {
-            _cacheManager = cacheManager;
-        }
-
+        
         /// <summary>
-        /// Returns the mime-type of the specified file path
+        /// Returns the mime-type of the specified file path.
         /// </summary>
         public string GetMimeType(string path) {
-            string extension = Path.GetExtension(path);
-            if (String.IsNullOrWhiteSpace(extension)) {
-                return "application/unknown";
-            }
-
-            return _cacheManager.Get(extension, ctx => {
-                try {
-                    try {
-
-                        string applicationHost = System.Environment.ExpandEnvironmentVariables(@"%windir%\system32\inetsrv\config\applicationHost.config");
-                        string webConfig = System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("~").FilePath;
-
-                        // search for custom mime types in web.config and applicationhost.config
-                        foreach (var configFile in new[] { webConfig, applicationHost }) {
-                            if (File.Exists(configFile)) {
-                                var xdoc = XDocument.Load(configFile);
-                                var mimeMap = xdoc.XPathSelectElements("//staticContent/mimeMap[@fileExtension='" + extension + "']").FirstOrDefault();
-                                if (mimeMap != null) {
-                                    var mimeType = mimeMap.Attribute("mimeType");
-                                    if (mimeType != null) {
-                                        return mimeType.Value;
-                                    }
-                                }
-                            }
-                        }
-                    }
-                    catch {
-                        // ignore issues with web.config to fall back to registry
-                    }
-
-                    // search into the registry
-                    RegistryKey regKey = Registry.ClassesRoot.OpenSubKey(extension.ToLower());
-                    if (regKey != null) {
-                        var contentType = regKey.GetValue("Content Type");
-                        if (contentType != null) {
-                            return contentType.ToString();
-                        }
-                    }
-                }
-                catch {
-                    // if an exception occured return application/unknown
-                    return "application/unknown";
-                }
-
-                return "application/unknown";
-            });
-        }       
+            // Returns "application/octet-stream" for unmapped / unkown file types.
+            return MimeMapping.GetMimeMapping(path);
+        }
     }
-}
+}
\ No newline at end of file