Exemplo n.º 1
0
        /// <summary>
        /// Initialize
        /// </summary>
        public static void Initialize(ApplicationPartManager applicationPartManager, GrandConfig config)
        {
            if (applicationPartManager == null)
            {
                throw new ArgumentNullException("applicationPartManager");
            }

            if (config == null)
            {
                throw new ArgumentNullException("config");
            }

            using (new WriteLockDisposable(Locker))
            {
                // TODO: Add verbose exception handling / raising here since this is happening on app startup and could
                // prevent app from starting altogether
                var pluginFolder = new DirectoryInfo(CommonHelper.MapPath(PluginsPath));
                _shadowCopyFolder = new DirectoryInfo(CommonHelper.MapPath(ShadowCopyPath));

                var referencedPlugins   = new List <PluginDescriptor>();
                var incompatiblePlugins = new List <string>();

                try
                {
                    var installedPluginSystemNames = PluginFileParser.ParseInstalledPluginsFile(GetInstalledPluginsFilePath());

                    Debug.WriteLine("Creating shadow copy folder and querying for dlls");
                    //ensure folders are created
                    Directory.CreateDirectory(pluginFolder.FullName);
                    Directory.CreateDirectory(_shadowCopyFolder.FullName);

                    //get list of all files in bin
                    var binFiles = _shadowCopyFolder.GetFiles("*", SearchOption.AllDirectories);
                    if (config.ClearPluginShadowDirectoryOnStartup)
                    {
                        //clear out shadow copied plugins
                        foreach (var f in binFiles)
                        {
                            Debug.WriteLine("Deleting " + f.Name);
                            try
                            {
                                //ignore index.htm
                                var fileName = Path.GetFileName(f.FullName);
                                if (fileName.Equals("index.htm", StringComparison.OrdinalIgnoreCase))
                                {
                                    continue;
                                }

                                File.Delete(f.FullName);
                            }
                            catch (Exception exc)
                            {
                                Debug.WriteLine("Error deleting file " + f.Name + ". Exception: " + exc);
                            }
                        }
                    }

                    //load description files
                    foreach (var dfd in GetDescriptionFilesAndDescriptors(pluginFolder))
                    {
                        var descriptionFile  = dfd.Key;
                        var pluginDescriptor = dfd.Value;

                        //ensure that version of plugin is valid
                        if (!pluginDescriptor.SupportedVersions.Contains(GrandVersion.CurrentVersion, StringComparer.OrdinalIgnoreCase))
                        {
                            incompatiblePlugins.Add(pluginDescriptor.SystemName);
                            continue;
                        }

                        //some validation
                        if (String.IsNullOrWhiteSpace(pluginDescriptor.SystemName))
                        {
                            throw new Exception(string.Format("A plugin '{0}' has no system name. Try assigning the plugin a unique name and recompiling.", descriptionFile.FullName));
                        }
                        if (referencedPlugins.Contains(pluginDescriptor))
                        {
                            throw new Exception(string.Format("A plugin with '{0}' system name is already defined", pluginDescriptor.SystemName));
                        }

                        //set 'Installed' property
                        pluginDescriptor.Installed = installedPluginSystemNames
                                                     .FirstOrDefault(x => x.Equals(pluginDescriptor.SystemName, StringComparison.OrdinalIgnoreCase)) != null;

                        try
                        {
                            if (descriptionFile.Directory == null)
                            {
                                throw new Exception(string.Format("Directory cannot be resolved for '{0}' description file", descriptionFile.Name));
                            }
                            //get list of all DLLs in plugins (not in bin!)
                            var pluginFiles = descriptionFile.Directory.GetFiles("*.dll", SearchOption.AllDirectories)
                                              //just make sure we're not registering shadow copied plugins
                                              .Where(x => !binFiles.Select(q => q.FullName).Contains(x.FullName))
                                              .Where(x => IsPackagePluginFolder(x.Directory))
                                              .ToList();
                            //TO DO - copy files only from plugins - description.txt ?
                            //other plugin description info
                            var mainPluginFile = pluginFiles
                                                 .FirstOrDefault(x => x.Name.Equals(pluginDescriptor.PluginFileName, StringComparison.OrdinalIgnoreCase));
                            pluginDescriptor.OriginalAssemblyFile = mainPluginFile;

                            //shadow copy main plugin file
                            pluginDescriptor.ReferencedAssembly = PerformFileDeploy(mainPluginFile, applicationPartManager);

                            //load all other referenced assemblies now
                            foreach (var plugin in pluginFiles
                                     .Where(x => !x.Name.Equals(mainPluginFile.Name, StringComparison.OrdinalIgnoreCase))
                                     .Where(x => !IsAlreadyLoaded(x)))
                            {
                                PerformFileDeploy(plugin, applicationPartManager);
                            }

                            //init plugin type (only one plugin per assembly is allowed)
                            foreach (var t in pluginDescriptor.ReferencedAssembly.GetTypes())
                            {
                                if (typeof(IPlugin).IsAssignableFrom(t))
                                {
                                    if (!t.GetTypeInfo().IsInterface)
                                    {
                                        if (t.GetTypeInfo().IsClass&& !t.GetTypeInfo().IsAbstract)
                                        {
                                            pluginDescriptor.PluginType = t;
                                            break;
                                        }
                                    }
                                }
                            }

                            referencedPlugins.Add(pluginDescriptor);
                        }
                        catch (ReflectionTypeLoadException ex)
                        {
                            //add a plugin name. this way we can easily identify a problematic plugin
                            var msg = string.Format("Plugin '{0}'. ", pluginDescriptor.FriendlyName);
                            foreach (var e in ex.LoaderExceptions)
                            {
                                msg += e.Message + Environment.NewLine;
                            }

                            var fail = new Exception(msg, ex);
                            throw fail;
                        }
                        catch (Exception ex)
                        {
                            //add a plugin name. this way we can easily identify a problematic plugin
                            var msg = string.Format("Plugin '{0}'. {1}", pluginDescriptor.FriendlyName, ex.Message);

                            var fail = new Exception(msg, ex);
                            throw fail;
                        }
                    }
                }
                catch (Exception ex)
                {
                    var msg = string.Empty;
                    for (var e = ex; e != null; e = e.InnerException)
                    {
                        msg += e.Message + Environment.NewLine;
                    }

                    var fail = new Exception(msg, ex);
                    throw fail;
                }


                ReferencedPlugins   = referencedPlugins;
                IncompatiblePlugins = incompatiblePlugins;
            }
        }
        public static void Initialize(IMvcCoreBuilder mvcCoreBuilder, GrandConfig config)
        {
            lock (_synLock)
            {
                if (mvcCoreBuilder == null)
                {
                    throw new ArgumentNullException("mvcCoreBuilder");
                }

                _config = config ?? throw new ArgumentNullException("config");

                _pluginFolder     = new DirectoryInfo(CommonHelper.MapPath(PluginsPath));
                _shadowCopyFolder = new DirectoryInfo(CommonHelper.MapPath(ShadowCopyPath));

                var referencedPlugins   = new List <PluginDescriptor>();
                var incompatiblePlugins = new List <string>();

                try
                {
                    var installedPluginSystemNames = PluginFileParser.ParseInstalledPluginsFile(GetInstalledPluginsFilePath());

                    Log.Information("Creating shadow copy folder and querying for dlls");
                    //ensure folders are created
                    Directory.CreateDirectory(_pluginFolder.FullName);
                    Directory.CreateDirectory(_shadowCopyFolder.FullName);

                    //get list of all files in bin
                    var binFiles = _shadowCopyFolder.GetFiles("*", SearchOption.AllDirectories);
                    if (config.ClearPluginShadowDirectoryOnStartup)
                    {
                        //clear out shadow copied plugins
                        foreach (var f in binFiles)
                        {
                            Log.Information($"Deleting {f.Name}");
                            try
                            {
                                //ignore index.htm
                                var fileName = Path.GetFileName(f.FullName);
                                if (fileName.Equals("index.htm", StringComparison.OrdinalIgnoreCase))
                                {
                                    continue;
                                }

                                File.Delete(f.FullName);
                            }
                            catch (Exception exc)
                            {
                                Log.Error(exc, "PluginManager");
                            }
                        }
                    }

                    //load description files
                    foreach (var pluginDescriptor in GetDescriptions())
                    {
                        //ensure that version of plugin is valid
                        if (!pluginDescriptor.SupportedVersions.Contains(GrandVersion.SupportedPluginVersion, StringComparer.OrdinalIgnoreCase))
                        {
                            incompatiblePlugins.Add(pluginDescriptor.SystemName);
                            continue;
                        }

                        //some validation
                        if (string.IsNullOrWhiteSpace(pluginDescriptor.SystemName))
                        {
                            throw new Exception(string.Format("A plugin '{0}' has no system name. Try assigning the plugin a unique name and recompiling.", pluginDescriptor.SystemName));
                        }
                        if (referencedPlugins.Contains(pluginDescriptor))
                        {
                            throw new Exception(string.Format("A plugin with '{0}' system name is already defined", pluginDescriptor.SystemName));
                        }

                        //set 'Installed' property
                        pluginDescriptor.Installed = installedPluginSystemNames
                                                     .FirstOrDefault(x => x.Equals(pluginDescriptor.SystemName, StringComparison.OrdinalIgnoreCase)) != null;

                        try
                        {
                            if (!config.PluginShadowCopy)
                            {
                                //remove deps.json files
                                var depsFiles = pluginDescriptor.OriginalAssemblyFile.Directory.GetFiles("*.deps.json", SearchOption.TopDirectoryOnly);
                                foreach (var f in depsFiles)
                                {
                                    try
                                    {
                                        File.Delete(f.FullName);
                                    }
                                    catch (Exception exc)
                                    {
                                        Log.Error(exc, "PluginManager");
                                    }
                                }
                            }

                            //main plugin file
                            AddApplicationPart(mvcCoreBuilder, pluginDescriptor.ReferencedAssembly, pluginDescriptor.SystemName, pluginDescriptor.PluginFileName);

                            //init plugin type (only one plugin per assembly is allowed)
                            foreach (var t in pluginDescriptor.ReferencedAssembly.GetTypes())
                            {
                                if (typeof(IPlugin).IsAssignableFrom(t))
                                {
                                    if (!t.GetTypeInfo().IsInterface)
                                    {
                                        if (t.GetTypeInfo().IsClass&& !t.GetTypeInfo().IsAbstract)
                                        {
                                            pluginDescriptor.PluginType = t;
                                            break;
                                        }
                                    }
                                }
                            }

                            referencedPlugins.Add(pluginDescriptor);
                        }
                        catch (ReflectionTypeLoadException ex)
                        {
                            //add a plugin name. this way we can easily identify a problematic plugin
                            var msg = string.Format("Plugin '{0}'. ", pluginDescriptor.FriendlyName);
                            foreach (var e in ex.LoaderExceptions)
                            {
                                msg += e.Message + Environment.NewLine;
                            }

                            var fail = new Exception(msg, ex);
                            throw fail;
                        }
                        catch (Exception ex)
                        {
                            //add a plugin name. this way we can easily identify a problematic plugin
                            var msg = string.Format("Plugin '{0}'. {1}", pluginDescriptor.FriendlyName, ex.Message);

                            var fail = new Exception(msg, ex);
                            throw fail;
                        }
                    }
                }
                catch (Exception ex)
                {
                    var msg = string.Empty;
                    for (var e = ex; e != null; e = e.InnerException)
                    {
                        msg += e.Message + Environment.NewLine;
                    }

                    var fail = new Exception(msg, ex);
                    throw fail;
                }

                ReferencedPlugins   = referencedPlugins;
                IncompatiblePlugins = incompatiblePlugins;
            }
        }