/// <summary>
/// Adds tenant level configuration to serve static files from modules
/// </summary>
private static void AddStaticFiles(BlocksCoreBuilder builder)
{
builder.Configure((app, routes, serviceProvider) =>
{
var env = serviceProvider.GetRequiredService <IHostingEnvironment>();
var appContext = serviceProvider.GetRequiredService <IApplicationContext>();
IFileProvider fileProvider;
if (env.IsDevelopment())
{
var fileProviders = new List <IFileProvider>();
fileProviders.Add(new ModuleProjectStaticFileProvider(appContext));
fileProviders.Add(new ModuleEmbeddedStaticFileProvider(appContext));
fileProvider = new CompositeFileProvider(fileProviders);
}
else
{
fileProvider = new ModuleEmbeddedStaticFileProvider(appContext);
}
var options = serviceProvider.GetRequiredService <IOptions <StaticFileOptions> >().Value;
options.RequestPath = "";
options.FileProvider = fileProvider;
// Cache static files for a year as they are coming from embedded resources and should not vary
options.OnPrepareResponse = ctx =>
{
ctx.Context.Response.Headers[HeaderNames.CacheControl] = "max-age=" + (int)TimeSpan.FromDays(365).TotalSeconds;
};
app.UseStaticFiles(options);
});
}
/// <summary>
/// Adds BlocksCore services to the host service collection.
/// </summary>
public static BlocksCoreBuilder AddBlocksCore(this IServiceCollection services)
{
// If an instance of BlocksCoreBuilder exists reuse it,
// so we can call AddBlocksCore several times.
var builder = services
.LastOrDefault(d => d.ServiceType == typeof(BlocksCoreBuilder))?
.ImplementationInstance as BlocksCoreBuilder;
if (builder == null)
{
builder = new BlocksCoreBuilder(services);
services.AddSingleton(builder);
AddDefaultServices(services);
AddShellServices(services);
AddExtensionServices(builder);
AddStaticFiles(builder);
AddAntiForgery(builder);
AddAuthentication(builder);
AddDataProtection(builder);
// Register the list of services to be resolved later on
services.AddSingleton(services);
}
return(builder);
}
/// <summary>
/// Adds tenant level caching services.
/// </summary>
public static BlocksCoreBuilder AddCaching(this BlocksCoreBuilder builder)
{
builder.ConfigureServices(services =>
{
services.AddTransient <ITagCache, DefaultTagCache>();
services.AddSingleton <ISignal, Signal>();
services.AddScoped <ICacheContextManager, CacheContextManager>();
services.AddScoped <ICacheScopeManager, CacheScopeManager>();
services.AddScoped <ICacheContextProvider, FeaturesCacheContextProvider>();
services.AddScoped <ICacheContextProvider, QueryCacheContextProvider>();
services.AddScoped <ICacheContextProvider, RolesCacheContextProvider>();
services.AddScoped <ICacheContextProvider, RouteCacheContextProvider>();
services.AddScoped <ICacheContextProvider, UserCacheContextProvider>();
services.AddScoped <ICacheContextProvider, KnownValueCacheContextProvider>();
// IMemoryCache is registered at the tenant level so that there is one instance for each tenant.
services.AddSingleton <IMemoryCache, MemoryCache>();
// MemoryDistributedCache needs to be registered as a singleton as it owns a MemoryCache instance.
services.AddSingleton <IDistributedCache, MemoryDistributedCache>();
});
return(builder);
}
/// <summary>
/// Registers a default tenant with a set of features that are used to setup and configure the actual tenants.
/// For instance you can use this to add a custom Setup module.
/// </summary>
public static BlocksCoreBuilder AddSetupFeatures(this BlocksCoreBuilder builder, params string[] featureIds)
{
foreach (var featureId in featureIds)
{
builder.ApplicationServices.AddTransient(sp => new ShellFeature(featureId));
}
return(builder);
}
/// <summary>
/// Host services to load site settings from the file system
/// </summary>
public static BlocksCoreBuilder AddSitesFolder(this BlocksCoreBuilder builder)
{
var services = builder.ApplicationServices;
services.AddSingleton <IShellSettingsConfigurationProvider, ShellSettingsConfigurationProvider>();
services.AddSingleton <IShellSettingsManager, ShellSettingsManager>();
services.AddTransient <IConfigureOptions <ShellOptions>, ShellOptionsSetup>();
return(builder);
}
/// <summary>
/// Adds tenant level deferred tasks services.
/// </summary>
public static BlocksCoreBuilder AddDeferredTasks(this BlocksCoreBuilder builder)
{
builder.ConfigureServices(services =>
{
services.TryAddScoped <IDeferredTaskEngine, DeferredTaskEngine>();
services.TryAddScoped <IDeferredTaskState, HttpContextTaskState>();
});
return(builder);
}
/// <summary>
/// Adds host level services to provide CLI commands.
/// </summary>
public static BlocksCoreBuilder AddCommands(this BlocksCoreBuilder builder)
{
var services = builder.ApplicationServices;
services.AddScoped <ICommandManager, DefaultCommandManager>();
services.AddScoped <ICommandHandler, HelpCommand>();
services.AddScoped <ICommandParametersParser, CommandParametersParser>();
services.AddScoped <ICommandParser, CommandParser>();
return(builder);
}
/// <summary>
/// Registers tenants defined in configuration.
/// </summary>
public static BlocksCoreBuilder WithTenants(this BlocksCoreBuilder builder)
{
var services = builder.ApplicationServices;
services.AddSingleton <IShellSettingsConfigurationProvider, FileShellSettingsConfigurationProvider>();
services.AddScoped <IShellDescriptorManager, FileShellDescriptorManager>();
services.AddSingleton <IShellSettingsManager, ShellSettingsManager>();
services.AddTransient <IConfigureOptions <ShellOptions>, ShellOptionsSetup>();
services.AddScoped <ShellSettingsWithTenants>();
return(builder);
}
private static void AddExtensionServices(BlocksCoreBuilder builder)
{
builder.ApplicationServices.AddSingleton <IModuleNamesProvider, AssemblyAttributeModuleNamesProvider>();
builder.ApplicationServices.AddSingleton <IApplicationContext, ModularApplicationContext>();
builder.ApplicationServices.AddExtensionManagerHost();
builder.ConfigureServices(services =>
{
services.AddExtensionManager();
});
}
/// <summary>
/// Registers at the tenant level a set of features which are always enabled.
/// </summary>
public static BlocksCoreBuilder AddTenantFeatures(this BlocksCoreBuilder builder, params string[] featureIds)
{
builder.ConfigureServices(services =>
{
foreach (var featureId in featureIds)
{
services.AddTransient(sp => new ShellFeature(featureId, alwaysEnabled: true));
}
});
return(builder);
}
/// <summary>
/// Adds services at the host level to load site settings from the file system
/// and tenant level services to store states and descriptors in the database.
/// </summary>
public static BlocksCoreBuilder AddDataStorage(this BlocksCoreBuilder builder)
{
builder.AddSitesFolder()
.ConfigureServices(services =>
{
services.AddScoped <IShellDescriptorManager, ShellDescriptorManager>();
services.AddScoped <IShellStateManager, ShellStateManager>();
services.AddScoped <IShellFeaturesManager, ShellFeaturesManager>();
services.AddScoped <IShellDescriptorFeaturesManager, ShellDescriptorFeaturesManager>();
});
return(builder);
}
/// <summary>
/// Adds tenant level data protection services.
/// </summary>
private static void AddDataProtection(BlocksCoreBuilder builder)
{
builder.ConfigureServices((services, serviceProvider) =>
{
var settings = serviceProvider.GetRequiredService <ShellSettings>();
var options = serviceProvider.GetRequiredService <IOptions <ShellOptions> >();
var directory = Directory.CreateDirectory(Path.Combine(
options.Value.ShellsApplicationDataPath,
options.Value.ShellsContainerName,
settings.Name, "DataProtection-Keys"));
// Re-register the data protection services to be tenant-aware so that modules that internally
// rely on IDataProtector/IDataProtectionProvider automatically get an isolated instance that
// manages its own key ring and doesn't allow decrypting payloads encrypted by another tenant.
// By default, the key ring is stored in the tenant directory of the configured App_Data path.
var collection = new ServiceCollection()
.AddDataProtection()
.PersistKeysToFileSystem(directory)
.SetApplicationName(settings.Name)
.Services;
// Retrieve the implementation type of the newly startup filter registered as a singleton
var startupFilterType = collection.FirstOrDefault(s => s.ServiceType == typeof(IStartupFilter))?.ImplementationType;
if (startupFilterType != null)
{
// Remove any previously registered data protection startup filters.
var descriptors = services.Where(s => s.ServiceType == typeof(IStartupFilter) &&
(s.ImplementationInstance?.GetType() == startupFilterType ||
s.ImplementationType == startupFilterType)).ToArray();
foreach (var descriptor in descriptors)
{
services.Remove(descriptor);
}
}
// Remove any previously registered options setups.
services.RemoveAll <IConfigureOptions <KeyManagementOptions> >();
services.RemoveAll <IConfigureOptions <DataProtectionOptions> >();
services.Add(collection);
});
}
/// <summary>
/// Adds host and tenant level antiforgery services.
/// </summary>
private static void AddAntiForgery(BlocksCoreBuilder builder)
{
builder.ApplicationServices.AddAntiforgery();
builder.ConfigureServices((services, serviceProvider) =>
{
var settings = serviceProvider.GetRequiredService <ShellSettings>();
var tenantName = settings.Name;
var tenantPrefix = "/" + settings.RequestUrlPrefix;
services.AddAntiforgery(options =>
{
options.Cookie.Name = "orchantiforgery_" + tenantName;
options.Cookie.Path = tenantPrefix;
});
});
}
/// <summary>
/// Adds host and tenant level authentication services and configuration.
/// </summary>
private static void AddAuthentication(BlocksCoreBuilder builder)
{
builder.ApplicationServices.AddAuthentication();
builder.ConfigureServices(services =>
{
services.AddAuthentication();
// IAuthenticationSchemeProvider is already registered at the host level.
// We need to register it again so it is taken into account at the tenant level
// because it holds a reference to an underlying dictionary, responsible of storing
// the registered schemes which need to be distinct for each tenant.
services.AddSingleton <IAuthenticationSchemeProvider, AuthenticationSchemeProvider>();
})
.Configure(app =>
{
app.UseAuthentication();
});
}
public static BlocksCoreBuilder AddDataAccess(this BlocksCoreBuilder builder)
{
builder.ConfigureServices(services =>
{
services.TryAddDataProvider(name: "Sql Server", value: "SqlConnection", hasConnectionString: true,
hasTablePrefix: true, isDefault: false);
services.TryAddDataProvider(name: "Sqlite", value: "Sqlite", hasConnectionString: false,
hasTablePrefix: false, isDefault: true);
services.TryAddDataProvider(name: "MySql", value: "MySql", hasConnectionString: true,
hasTablePrefix: true, isDefault: false);
services.TryAddDataProvider(name: "Postgres", value: "Postgres", hasConnectionString: true,
hasTablePrefix: true, isDefault: false);
services.AddDbContext <DbContext, BlocksCoreDbContext>();
services.AddScoped <IDataContext, DataContext>();
});
return(builder);
}
/// <summary>
/// Registers and configures a background hosted service to manage tenant background tasks.
/// </summary>
public static BlocksCoreBuilder AddBackgroundService(this BlocksCoreBuilder builder)
{
builder.ApplicationServices.AddSingleton <IHostedService, ModularBackgroundService>();
return(builder);
}
/// <summary>
/// Adds tenant level MVC services and configuration.
/// </summary>
public static BlocksCoreBuilder AddMvc(this BlocksCoreBuilder builder)
{
return(builder.RegisterStartup <Startup>());
}
