Fixed and closed #494: PluginPack now compiled as separate assemblies. Also implemented Updater plugin to silently replace PluginPack.dll with new DLLs.

PluginPack/Updater.cs

@@ -0,0 +1,172 @@
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using ScrewTurn.Wiki.PluginFramework;
+using System.Net;
+using System.IO;
+
+namespace ScrewTurn.Wiki.Plugins.PluginPack {
+
+	/// <summary>
+	/// Plugin with the sole purpose of removing PluginPack.dll in favor of separate DLLs.
+	/// </summary>
+	public class Updater : IFormatterProviderV30 {
+
+		private static bool AlreadyRun = false;
+
+		private static readonly ComponentInformation _info = new ComponentInformation("Updater Plugin", "Threeplicate Srl", "3.0.2.538", "http://www.screwturn.eu", null);
+
+		/// <summary>
+		/// Initializes the Storage Provider.
+		/// </summary>
+		/// <param name="host">The Host of the Component.</param>
+		/// <param name="config">The Configuration data, if any.</param>
+		/// <exception cref="ArgumentNullException">If <paramref name="host"/> or <paramref name="config"/> are <c>null</c>.</exception>
+		/// <exception cref="InvalidConfigurationException">If <paramref name="config"/> is not valid or is incorrect.</exception>
+		public void Init(IHostV30 host, string config) {
+			if(host == null) throw new ArgumentNullException("host");
+			if(config == null) throw new ArgumentNullException("config");
+
+			if(AlreadyRun) return;
+
+			// 1. Delete PluginPack.dll
+			// 2. Download all other DLLs
+
+			string root = "http://www.screwturn.eu/Version/PluginPack/";
+
+			string[] dllNames = new string[] {
+				"DownloadCounterPlugin.dll",
+				"FootnotesPlugin.dll",
+				"MultilanguageContentPlugin.dll",
+				"RssFeedDisplayPlugin.dll",
+				"UnfuddleTicketsPlugin.dll"
+			};
+
+			string[] providerNames = new string[] {
+				"ScrewTurn.Wiki.Plugins.PluginPack.DownloadCounter",
+				"ScrewTurn.Wiki.Plugins.PluginPack.Footnotes",
+				"ScrewTurn.Wiki.Plugins.PluginPack.MultilanguageContentPlugin",
+				"ScrewTurn.Wiki.Plugins.PluginPack.RssFeedDisplay",
+				"ScrewTurn.Wiki.Plugins.PluginPack.UnfuddleTickets",
+			};
+
+			Dictionary<string, byte[]> assemblies = new Dictionary<string, byte[]>(dllNames.Length);
+
+			try {
+				foreach(string dll in dllNames) {
+					host.LogEntry("Downloading " + dll, LogEntryType.General, null, this);
+
+					HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(root + dll);
+					req.AllowAutoRedirect = true;
+					HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
+
+					if(resp.StatusCode == HttpStatusCode.OK) {
+						BinaryReader reader = new BinaryReader(resp.GetResponseStream());
+						byte[] content = reader.ReadBytes((int)resp.ContentLength);
+						reader.Close();
+
+						assemblies.Add(dll, content);
+					}
+					else {
+						throw new InvalidOperationException("Response status code for " + dll + ":" + resp.StatusCode.ToString());
+					}
+				}
+
+				foreach(string dll in dllNames) {
+					host.GetSettingsStorageProvider().StorePluginAssembly(dll, assemblies[dll]);
+				}
+
+				foreach(string dll in dllNames) {
+					LoadProvider(dll);
+				}
+
+				host.GetSettingsStorageProvider().DeletePluginAssembly("PluginPack.dll");
+
+				AlreadyRun = true;
+			}
+			catch(Exception ex) {
+				host.LogEntry("Error occurred during automatic DLL updating with Updater Plugin\n" + ex.ToString(), LogEntryType.Error, null, this);
+			}
+		}
+
+		private void LoadProvider(string dll) {
+			Type loader = Type.GetType("ScrewTurn.Wiki.ProviderLoader, ScrewTurn.Wiki.Core");
+			var method = loader.GetMethod("LoadFromAuto");
+			method.Invoke(null, new[] { dll });
+		}
+
+		/// <summary>
+		/// Method invoked on shutdown.
+		/// </summary>
+		/// <remarks>This method might not be invoked in some cases.</remarks>
+		public void Shutdown() {
+		}
+
+		/// <summary>
+		/// Specifies whether or not to execute Phase 1.
+		/// </summary>
+		public bool PerformPhase1 {
+			get { return false; }
+		}
+
+		/// <summary>
+		/// Specifies whether or not to execute Phase 2.
+		/// </summary>
+		public bool PerformPhase2 {
+			get { return false; }
+		}
+
+		/// <summary>
+		/// Specifies whether or not to execute Phase 3.
+		/// </summary>
+		public bool PerformPhase3 {
+			get { return false; }
+		}
+
+		/// <summary>
+		/// Gets the execution priority of the provider (0 lowest, 100 highest).
+		/// </summary>
+		public int ExecutionPriority {
+			get { return 50; }
+		}
+
+		/// <summary>
+		/// Performs a Formatting phase.
+		/// </summary>
+		/// <param name="raw">The raw content to Format.</param>
+		/// <param name="context">The Context information.</param>
+		/// <param name="phase">The Phase.</param>
+		/// <returns>The Formatted content.</returns>
+		public string Format(string raw, ContextInformation context, FormattingPhase phase) {
+			return raw;
+		}
+
+		/// <summary>
+		/// Prepares the title of an item for display (always during phase 3).
+		/// </summary>
+		/// <param name="title">The input title.</param>
+		/// <param name="context">The context information.</param>
+		/// <returns>The prepared title (no markup allowed).</returns>
+		public string PrepareTitle(string title, ContextInformation context) {
+			return title;
+		}
+
+		/// <summary>
+		/// Gets the Information about the Provider.
+		/// </summary>
+		public ComponentInformation Information {
+			get { return _info; }
+		}
+
+		/// <summary>
+		/// Gets a brief summary of the configuration string format, in HTML. Returns <c>null</c> if no configuration is needed.
+		/// </summary>
+		public string ConfigHelpHtml {
+			get { return null; }
+		}
+
+	}
+
+}