public void EnableModule(string moduleName)
{
if (!PluginsLoadContexts.Any(moduleName))
{
var context = new CollectibleAssemblyLoadContext();
var filePath = $"{AppDomain.CurrentDomain.BaseDirectory}Modules\\{moduleName}\\{moduleName}.dll";
var referenceFolderPath = $"{AppDomain.CurrentDomain.BaseDirectory}Modules\\{moduleName}";
using (var fs = new FileStream(filePath, FileMode.Open))
{
var assembly = context.LoadFromStream(fs);
_referenceLoader.LoadStreamsIntoContext(context, referenceFolderPath, assembly);
var controllerAssemblyPart = new MyAssemblyPart(assembly);
AdditionalReferencePathHolder.AdditionalReferencePaths.Add(filePath);
_partManager.ApplicationParts.Add(controllerAssemblyPart);
PluginsLoadContexts.AddPluginContext(moduleName, context);
}
}
else
{
var context = PluginsLoadContexts.GetContext(moduleName);
var controllerAssemblyPart = new MyAssemblyPart(context.Assemblies.First());
_partManager.ApplicationParts.Add(controllerAssemblyPart);
}
ResetControllActions();
}
public static void MystiqueSetup(this IServiceCollection services, IConfiguration configuration)
{
services.AddSingleton <IMvcModuleSetup, MvcModuleSetup>();
services.AddScoped <IPluginManager, PluginManager>();
services.AddSingleton <IActionDescriptorChangeProvider>(ActionDescriptorChangeProvider.Instance);
services.AddSingleton <IReferenceContainer, DefaultReferenceContainer>();
services.AddSingleton <IReferenceLoader, DefaultReferenceLoader>();
services.AddSingleton(ActionDescriptorChangeProvider.Instance);
var mvcBuilder = services.AddMvc();
var provider = services.BuildServiceProvider();
using (var scope = provider.CreateScope())
{
var pluginManager = scope.ServiceProvider.GetService <IPluginManager>();
var allEnabledPlugins = pluginManager.GetAllEnabledPlugins();
var loader = scope.ServiceProvider.GetService <IReferenceLoader>();
foreach (var plugin in allEnabledPlugins)
{
var context = new CollectibleAssemblyLoadContext();
var moduleName = plugin.Name;
var filePath = $"{AppDomain.CurrentDomain.BaseDirectory}Modules\\{moduleName}\\{moduleName}.dll";
var referenceFolderPath = $"{AppDomain.CurrentDomain.BaseDirectory}Modules\\{moduleName}";
_presets.Add(filePath);
using (var fs = new FileStream(filePath, FileMode.Open))
{
// LoadFromAssemblyPath改成了LoadFromStream
var assembly = context.LoadFromStream(fs);
loader.LoadStreamsIntoContext(context, referenceFolderPath, assembly);
var controllerAssemblyPart = new MyAssemblyPart(assembly);
mvcBuilder.PartManager.ApplicationParts.Add(controllerAssemblyPart);
PluginsLoadContexts.AddPluginContext(plugin.Name, context);
}
}
}
//Razor视图的运行时编译
mvcBuilder.AddRazorRuntimeCompilation(o =>
{
foreach (var item in _presets)
{
o.AdditionalReferencePaths.Add(item);
}
AdditionalReferencePathHolder.AdditionalReferencePaths = o.AdditionalReferencePaths;
});
services.Configure <RazorViewEngineOptions>(o =>
{
o.AreaViewLocationFormats.Add("/Modules/{2}/Views/{1}/{0}" + RazorViewEngine.ViewExtension);
o.AreaViewLocationFormats.Add("/Views/Shared/{0}.cshtml");
});
}
public IActionResult Enable(Guid id)
{
var module = _pluginManager.GetPlugin(id);
if (!PluginsLoadContexts.Any(module.Name))
{
var context = new CollectibleAssemblyLoadContext();
_pluginManager.EnablePlugin(id);
var moduleName = module.Name;
var filePath = $"{AppDomain.CurrentDomain.BaseDirectory}Modules\\{moduleName}\\{moduleName}.dll";
using (var fs = new FileStream(filePath, FileMode.Open))
{
var assembly = context.LoadFromStream(fs);
var controllerAssemblyPart = new MyAssemblyPart(assembly);
AdditionalReferencePathHolder.AdditionalReferencePaths.Add(filePath);
_partManager.ApplicationParts.Add(controllerAssemblyPart);
}
MyActionDescriptorChangeProvider.Instance.HasChanged = true;
MyActionDescriptorChangeProvider.Instance.TokenSource.Cancel();
PluginsLoadContexts.AddPluginContext(module.Name, context);
}
else
{
var context = PluginsLoadContexts.GetContext(module.Name);
var controllerAssemblyPart = new AssemblyPart(context.Assemblies.First());
_partManager.ApplicationParts.Add(controllerAssemblyPart);
_pluginManager.EnablePlugin(id);
MyActionDescriptorChangeProvider.Instance.HasChanged = true;
MyActionDescriptorChangeProvider.Instance.TokenSource.Cancel();
}
return(RedirectToAction("Index"));
}
public static IServiceCollection AddPluginCore(this IServiceCollection services, Action <PluginSetupOptions> configAction)
{
var pluginSetupOptions = new PluginSetupOptions();
configAction(pluginSetupOptions);
//var config = pluginSetupOptions.Configuration;
var mvcBuilder = pluginSetupOptions.MvcBuilder;
// 添加配置
services.AddOptions();
// 配置触发控制器重新装载
services.AddSingleton <IActionDescriptorChangeProvider>(MyActionDescriptorChangeProvider.Instance);
services.AddSingleton(MyActionDescriptorChangeProvider.Instance);
// 加载安装好的插件
var provider = services.BuildServiceProvider();
using (var scope = provider.CreateScope())
{
var razorOptions = scope.ServiceProvider.GetService <MvcRazorRuntimeCompilationOptions>();
// 加载所有已经安装好的插件 TODO 启用禁用 采用一个数据库来保存插件状态数据
var pluginDir = System.IO.Path.Combine(AppContext.BaseDirectory, "Plugins");
if (!System.IO.Directory.Exists(pluginDir))
{
System.IO.Directory.CreateDirectory(pluginDir);
}
var pluginFiles = System.IO.Directory.GetFiles(pluginDir, "*.dll");
// TODO 每个插件分配到一个文件夹中，一个文件夹代表一个插件，里面包含`plugin.json`配置文件，内部`config.json`配置文件，`XxxPlugin.dll`插件主体程序，插件依赖的`Dependents.dll`也需要加载
foreach (var filePath in pluginFiles)
{
_presets.Add(filePath);
var context = new CollectibleAssemblyLoadContext();
#region 采用 AssemblyLoadContext.LoadFromAssemblyPath(assemblyPath) 方式加载 Assembly
//var assembly = context.LoadFromAssemblyPath(filePath);
//var controllerAssemblyPart = new Microsoft.AspNetCore.Mvc.ApplicationParts.AssemblyPart(assembly);
//mvcBuilders.PartManager.ApplicationParts.Add(controllerAssemblyPart);
#endregion
//using (var fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open))
//{
using var fs = new System.IO.FileStream(filePath, System.IO.FileMode.Open);
var assembly = context.LoadFromStream(fs);
var controllerAssemblyPart = new MyAssemblyPart(assembly);
mvcBuilder.PartManager.ApplicationParts.Add(controllerAssemblyPart);
PluginsLoadContext.Add(System.IO.Path.GetFileNameWithoutExtension(filePath), context);
//}
}
// 设置插件文件夹监听器
}
// 配置`Razor`运行时编译
mvcBuilder.AddRazorRuntimeCompilation(options =>
{
foreach (var item in _presets)
{
options.AdditionalReferencePaths.Add(item);
}
AdditionalReferencePathHolder.AdditionalReferencePaths = options.AdditionalReferencePaths;
});
// 添加`Razor`页面路由和应用模型约定
services.Configure <Microsoft.AspNetCore.Mvc.Razor.RazorViewEngineOptions>(options =>
{
// 2-PluginName, 1-Controller, 0-Action
options.AreaViewLocationFormats.Add("/Plugins/{2}/Views/{1}/{0}" + Microsoft.AspNetCore.Mvc.Razor.RazorViewEngine.ViewExtension);
options.AreaViewLocationFormats.Add("/Views/Shared/{0}.cshtml");
});
//// 为 IPageConvention 添加委托，以添加应用于 Razor 页面的模型约定。
//services.Configure<Microsoft.AspNetCore.Mvc.RazorPages.RazorPagesOptions>(options =>
//{
// options.Conventions.Add(new GlobalTemplatePageRouteModelConvention());
// options.Conventions.Add(new GlobalHeaderPageApplicationModelConvention());
// options.Conventions.Add(new GlobalPageHandlerModelConvention());
// // 将 URL www.domain.com/product 映射到Razor 页面 “extras”文件夹“products.cshtml”文件
// options.Conventions.AddPageRoute("/extras/products", "product");
// // 路由模板（*）通配符表示“全部”。即使使用此配置，磁盘上的现有文件和URL之间的匹配规则仍然正常运行。
// options.Conventions.AddPageRoute("/index", "{*url}");
// // 重点关注三点：1是路由作用域，2是order路由顺序，3是定义好Template路由规则。
// options.Conventions.AddFolderRouteModelConvention("/OtherPages", model =>
// {
// //OtherPages文件夹下的页面，都用此路由模板。
// var selectorCount = model.Selectors.Count;
// for (var i = 0; i < selectorCount; i++)
// {
// var selector = model.Selectors[i];
// model.Selectors.Add(new AspNetCore.Mvc.ApplicationModels.SelectorModel
// {
// AttributeRouteModel = new AspNetCore.Mvc.ApplicationModels.AttributeRouteModel
// {
// //用于处理路由匹配,指定路由处理顺序。按顺序处理的路由 (-1、 0、 1、 2、 … n)
// Order = 2,
// Template = AspNetCore.Mvc.ApplicationModels.AttributeRouteModel.CombineTemplates
// (selector.AttributeRouteModel.Template, "{otherPagesTemplate?}")
// }
// });
// }
// });
// options.Conventions.AddPageRouteModelConvention("/About", model =>
// {
// //About页面,用此路由模板。
// var selectorCount = model.Selectors.Count;
// for (var i = 0; i < selectorCount; i++)
// {
// var selector = model.Selectors[i];
// model.Selectors.Add(new AspNetCore.Mvc.ApplicationModels.SelectorModel
// {
// AttributeRouteModel = new AspNetCore.Mvc.ApplicationModels.AttributeRouteModel
// {
// Order = 2,
// Template = AspNetCore.Mvc.ApplicationModels.AttributeRouteModel.CombineTemplates
// (selector.AttributeRouteModel.Template, "{aboutTemplate?}")
// }
// });
// }
// });
//});
return(services);
}
