Merge pull request #5201 from thekaveman/1.8.x

Fix null exception in AzureBlobStorageProvider.GetStoragePath

src/Orchard.Web/Modules/Orchard.Azure/Services/FileSystems/AzureFileSystem.cs

@@ -56,7 +56,7 @@ namespace Orchard.Azure.Services.FileSystems {
             _publicHostName = publicHostName;
         }
 
-        private void EnsureInitialized() {
+        protected void EnsureInitialized() {
             if (_storageAccount != null) {
                 return;
             }

src/Orchard.Web/Modules/Orchard.Azure/Services/FileSystems/Media/AzureBlobStorageProvider.cs

@@ -60,6 +60,7 @@ namespace Orchard.Azure.Services.FileSystems.Media {
         /// <param name="url">The public URL of the media.</param>
         /// <returns>The corresponding local path.</returns>
         public string GetStoragePath(string url) {
+            EnsureInitialized();
             if (url.StartsWith(_absoluteRoot)) {
                 return HttpUtility.UrlDecode(url.Substring(Combine(_absoluteRoot, "/").Length));
             }