1 files changed, 59 insertions, 2 deletions
diff --git a/MediaBrowser.Common.Implementations/Updates/PackageManager.cs b/MediaBrowser.Common.Implementations/Updates/PackageManager.cs
index 3f09615e7..a9335dce0 100644
--- a/MediaBrowser.Common.Implementations/Updates/PackageManager.cs
+++ b/MediaBrowser.Common.Implementations/Updates/PackageManager.cs
@@ -1,12 +1,16 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
+using System.Security.Cryptography;
 using System.Threading;
 using System.Threading.Tasks;
 using MediaBrowser.Common.Kernel;
 using MediaBrowser.Common.Net;
 using MediaBrowser.Common.Security;
 using MediaBrowser.Common.Updates;
+using MediaBrowser.Model.IO;
+using MediaBrowser.Model.Logging;
 using MediaBrowser.Model.Serialization;
 using MediaBrowser.Model.Updates;
 
@@ -39,9 +43,62 @@ namespace MediaBrowser.Common.Implementations.Updates
 
         }
 
-        public Task InstallPackage(PackageVersionInfo package, CancellationToken cancellationToken)
+        public async Task InstallPackage(IHttpClient client, ILogger logger, ResourcePool resourcePool, IProgress<double> progress, IZipClient zipClient, IApplicationPaths appPaths, PackageVersionInfo package, CancellationToken cancellationToken)
         {
-            throw new NotImplementedException();
+            // Target based on if it is an archive or single assembly
+            //  zip archives are assumed to contain directory structures relative to our ProgramDataPath
+            var isArchive = string.Equals(Path.GetExtension(package.sourceUrl), ".zip", StringComparison.OrdinalIgnoreCase);
+            var target = isArchive ? appPaths.ProgramDataPath : Path.Combine(appPaths.PluginsPath, package.targetFilename);
+
+            // Download to temporary file so that, if interrupted, it won't destroy the existing installation
+            var tempFile = await client.GetTempFile(package.sourceUrl, resourcePool.Mb, cancellationToken, progress).ConfigureAwait(false);
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            // Validate with a checksum
+            if (package.checksum != Guid.Empty) // support for legacy uploads for now
+            {
+                using (var crypto = new MD5CryptoServiceProvider())
+                using (var stream = new BufferedStream(File.OpenRead(tempFile), 100000))
+                {
+                    var check = Guid.Parse(BitConverter.ToString(crypto.ComputeHash(stream)).Replace("-", String.Empty));
+                    if (check != package.checksum)
+                    {
+                        throw new ApplicationException(string.Format("Download validation failed for {0}.  Probably corrupted during transfer.", package.name));
+                    }
+                }
+            }
+
+            cancellationToken.ThrowIfCancellationRequested();
+
+            // Success - move it to the real target based on type
+            if (isArchive)
+            {
+                try
+                {
+                    zipClient.ExtractAll(tempFile, target, true);
+                }
+                catch (IOException e)
+                {
+                    logger.ErrorException("Error attempting to extract archive from {0} to {1}", e, tempFile, target);
+                    throw;
+                }
+
+            }
+            else
+            {
+                try
+                {
+                    File.Copy(tempFile, target, true);
+                    File.Delete(tempFile);
+                }
+                catch (IOException e)
+                {
+                    logger.ErrorException("Error attempting to move file from {0} to {1}", e, tempFile, target);
+                    throw;
+                }
+            }
+
         }
     }
 }