Adding a check to the Umbraco installer for the version of ImageProcessor.Web and displaying a warning if a upgrade is required

Author: Jeavon

src/UmbracoFileSystemProviders.Azure.Installer/Configurator/Views/Configure.ascx

@@ -43,10 +43,13 @@
          </div>
 
         <div class="row">
-            <div class="alert alert-success" ng-show="saved && status === 'Ok'">
+            <div class="alert alert-success" ng-show="saved && (status === 'Ok' || status === 'ImageProcessorWebCompatibility')">
                The Azure storage provider was sucessfully configured and your media is now as light as candyfloss
             </div>
-            <div class="alert alert-error" ng-show="saved && status != 'Ok'">
+            <div class="alert alert-info" ng-show="saved && status === 'ImageProcessorWebCompatibility'">
+               <strong>Warning!</strong> You need to upgrade the installed version of ImageProcessor.Web to be fully compatible with this package <a href="https://our.umbraco.org/projects/collaboration/imageprocessor/" target="_blank">https://our.umbraco.org/projects/collaboration/imageprocessor/</a>
+            </div>
+            <div class="alert alert-error" ng-show="saved && status != 'Ok' && status != 'ImageProcessorWebCompatibility'">
                 <strong>Oh no</strong>, something went wrong saving, please check Umbraco log files for exceptions
             </div>
             <div class="alert alert-error" ng-show="!saved && status === 'ConnectionError'">

src/UmbracoFileSystemProviders.Azure.Installer/Enums/InstallerStatus.cs

@@ -15,6 +15,7 @@ public enum InstallerStatus
         Ok,
         SaveXdtError,
         SaveConfigError,
-        ConnectionError
+        ConnectionError,
+        ImageProcessorWebCompatibility
     }
 }

src/UmbracoFileSystemProviders.Azure.Installer/InstallerController.cs

@@ -14,6 +14,7 @@ namespace Our.Umbraco.FileSystemProviders.Azure.Installer
     using System;
     using System.Collections.Generic;
     using System.Configuration;
+    using System.Diagnostics;
     using System.Linq;
     using System.Web.Hosting;
     using System.Web.Http;
@@ -34,10 +35,12 @@ namespace Our.Umbraco.FileSystemProviders.Azure.Installer
     public class InstallerController : UmbracoAuthorizedApiController
     {
         private const string ProviderType = "Our.Umbraco.FileSystemProviders.Azure.AzureBlobFileSystem, Our.Umbraco.FileSystemProviders.Azure";
+        private static readonly string ImageProcessorWebAssemblyPath = HostingEnvironment.MapPath("~/bin/ImageProcessor.Web.dll");
+        private static readonly Version ImageProcessorWebMinRequiredVersion = new Version("4.3.2.0");
+
         private readonly string fileSystemProvidersConfigInstallXdtPath = HostingEnvironment.MapPath("~/App_Plugins/UmbracoFileSystemProviders/Azure/Install/FileSystemProviders.config.install.xdt");
         private readonly string fileSystemProvidersConfigPath = HostingEnvironment.MapPath("~/Config/FileSystemProviders.config");
 
-
         // /Umbraco/backoffice/FileSystemProviders/Installer/GetParameters
         public IEnumerable<Parameter> GetParameters()
         {
@@ -49,7 +52,7 @@ public IEnumerable<Parameter> GetParameters()
         public InstallerStatus PostParameters(IEnumerable<Parameter> parameters)
         {
             var connection = parameters.SingleOrDefault(k => k.Key == "connectionString").Value;
-            var containerName = parameters.SingleOrDefault(k => k.Key == "containerName").Value;
+            var containerName = parameters.SingleOrDefault(k => k.Key == "containerName").Value;            
 
             if (!TestAzureCredentials(connection, containerName))
             {
@@ -63,6 +66,11 @@ public InstallerStatus PostParameters(IEnumerable<Parameter> parameters)
                     return InstallerStatus.SaveConfigError;
                 }
 
+                if (!CheckImageProcessorWebCompatibleVersion(ImageProcessorWebMinRequiredVersion))
+                {
+                    return InstallerStatus.ImageProcessorWebCompatibility;
+                }
+
                 return InstallerStatus.Ok;
             }
 
@@ -207,5 +215,14 @@ private static bool TestAzureCredentials(string connectionString, string contain
 
             return true;
         }
+
+        private static bool CheckImageProcessorWebCompatibleVersion(Version imageProcessorWebMinRequiredVersion)
+        {
+            var fileVersionInfo = FileVersionInfo.GetVersionInfo(ImageProcessorWebAssemblyPath);
+
+            var currentImageProcessorWebVersionInfo = new Version(fileVersionInfo.ProductVersion);
+
+            return currentImageProcessorWebVersionInfo >= imageProcessorWebMinRequiredVersion;
+        }
     }
 }