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Lidarr/Autofac.Integration.Mvc/RegistrationExtensions.cs

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// This software is part of the Autofac IoC container
// Copyright © 2011 Autofac Contributors
// http://autofac.org
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
using System;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Web;
using System.Web.Mvc;
using Autofac.Builder;
using Autofac.Core;
using Autofac.Features.Scanning;
namespace Autofac.Integration.Mvc
{
/// <summary>
/// Extends <see cref="ContainerBuilder"/> with methods to support ASP.NET MVC.
/// </summary>
public static class RegistrationExtensions
{
/// <summary>
/// Share one instance of the component within the context of a single
/// HTTP request.
/// </summary>
/// <typeparam name="TLimit">Registration limit type.</typeparam>
/// <typeparam name="TStyle">Registration style.</typeparam>
/// <typeparam name="TActivatorData">Activator data type.</typeparam>
/// <param name="registration">The registration to configure.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<TLimit, TActivatorData, TStyle>
InstancePerHttpRequest<TLimit, TActivatorData, TStyle>(
this IRegistrationBuilder<TLimit, TActivatorData, TStyle> registration)
{
if (registration == null) throw new ArgumentNullException("registration");
return registration.InstancePerMatchingLifetimeScope(RequestLifetimeScopeProvider.HttpRequestTag);
}
/// <summary>
/// Register types that implement IController in the provided assemblies.
/// </summary>
/// <param name="builder">The container builder.</param>
/// <param name="controllerAssemblies">Assemblies to scan for controllers.</param>
/// <returns>Registration builder allowing the controller components to be customised.</returns>
public static IRegistrationBuilder<object, ScanningActivatorData, DynamicRegistrationStyle>
RegisterControllers(
this ContainerBuilder builder,
params Assembly[] controllerAssemblies)
{
return builder.RegisterAssemblyTypes(controllerAssemblies)
.Where(t => typeof(IController).IsAssignableFrom(t) &&
t.Name.EndsWith("Controller", StringComparison.Ordinal));
}
/// <summary>
/// Inject an IActionInvoker into the controller's ActionInvoker property.
/// </summary>
/// <typeparam name="TLimit">Limit type.</typeparam>
/// <typeparam name="TActivatorData">Activator data.</typeparam>
/// <typeparam name="TRegistrationStyle">Registration style.</typeparam>
/// <param name="registrationBuilder">The registration builder.</param>
/// <returns>A registration builder.</returns>
public static IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle>
InjectActionInvoker<TLimit, TActivatorData, TRegistrationStyle>(
this IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> registrationBuilder)
{
return registrationBuilder.InjectActionInvoker(new TypedService(typeof(IActionInvoker)));
}
/// <summary>
/// Inject an IActionInvoker into the controller's ActionInvoker property.
/// </summary>
/// <typeparam name="TLimit">Limit type.</typeparam>
/// <typeparam name="TActivatorData">Activator data.</typeparam>
/// <typeparam name="TRegistrationStyle">Registration style.</typeparam>
/// <param name="registrationBuilder">The registration builder.</param>
/// <param name="actionInvokerService">Service used to resolve the action invoker.</param>
/// <returns>A registration builder.</returns>
public static IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle>
InjectActionInvoker<TLimit, TActivatorData, TRegistrationStyle>(
this IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> registrationBuilder,
Service actionInvokerService)
{
if (registrationBuilder == null) throw new ArgumentNullException("registrationBuilder");
if (actionInvokerService == null) throw new ArgumentNullException("actionInvokerService");
return registrationBuilder.OnActivating(e =>
{
var controller = e.Instance as Controller;
if (controller != null)
controller.ActionInvoker = (IActionInvoker)e.Context.ResolveService(actionInvokerService);
});
}
/// <summary>
/// Registers the <see cref="AutofacModelBinderProvider"/>.
/// </summary>
/// <param name="builder">The container builder.</param>
public static void RegisterModelBinderProvider(this ContainerBuilder builder)
{
if (builder == null) throw new ArgumentNullException("builder");
builder.RegisterType<AutofacModelBinderProvider>()
.As<IModelBinderProvider>()
.SingleInstance();
}
/// <summary>
/// Sets a provided registration to act as an <see cref="System.Web.Mvc.IModelBinder"/>
/// for the specified list of types.
/// </summary>
/// <param name="registration">
/// The registration for the type or object instance that will act as
/// the model binder.
/// </param>
/// <param name="types">
/// The list of model <see cref="System.Type"/> for which the <paramref name="registration" />
/// should be a model binder.
/// </param>
/// <typeparam name="TLimit">
/// Registration limit type.
/// </typeparam>
/// <typeparam name="TActivatorData">
/// Activator data type.
/// </typeparam>
/// <typeparam name="TRegistrationStyle">
/// Registration style.
/// </typeparam>
/// <returns>
/// An Autofac registration that can be modified as needed.
/// </returns>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="registration" /> or <paramref name="types" /> is <see langword="null" />.
/// </exception>
/// <exception cref="System.ArgumentException">
/// Thrown if <paramref name="types" /> is empty or contains all <see langword="null" />
/// values.
/// </exception>
/// <remarks>
/// <para>
/// The declarative mechanism of registering model binders with Autofac
/// is through use of <see cref="Autofac.Integration.Mvc.RegistrationExtensions.RegisterModelBinders"/>
/// and the <see cref="Autofac.Integration.Mvc.ModelBinderTypeAttribute"/>.
/// This method is an imperative alternative.
/// </para>
/// <para>
/// The two mechanisms are mutually exclusive. If you register a model
/// binder using <see cref="Autofac.Integration.Mvc.RegistrationExtensions.RegisterModelBinders"/>
/// and register the same model binder with this method, the results
/// are not automatically merged together - standard dependency
/// registration/resolution rules will be used to manage the conflict.
/// </para>
/// <para>
/// Any <see langword="null" /> values provided in <paramref name="types" />
/// will be removed prior to registration.
/// </para>
/// </remarks>
public static IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> AsModelBinderForTypes<TLimit, TActivatorData, TRegistrationStyle>(this IRegistrationBuilder<TLimit, TActivatorData, TRegistrationStyle> registration, params Type[] types)
where TActivatorData : IConcreteActivatorData
where TRegistrationStyle : SingleRegistrationStyle
{
if (registration == null)
{
throw new ArgumentNullException("registration");
}
if (types == null)
{
throw new ArgumentNullException("types");
}
var typeList = types.Where(type => type != null).ToList();
if (typeList.Count == 0)
{
throw new ArgumentException(RegistrationExtensionsResources.InvalidModelBinderType, "types");
}
return registration.As<IModelBinder>().WithMetadata(AutofacModelBinderProvider.MetadataKey, typeList);
}
/// <summary>
/// Register types that implement <see cref="IModelBinder"/> in the provided assemblies
/// and have a <see cref="Autofac.Integration.Mvc.ModelBinderTypeAttribute"/>.
/// </summary>
/// <param name="builder">The container builder.</param>
/// <param name="modelBinderAssemblies">Assemblies to scan for model binders.</param>
/// <returns>A registration builder.</returns>
/// <exception cref="System.ArgumentNullException">
/// Thrown if <paramref name="builder" /> or <paramref name="modelBinderAssemblies" /> is <see langword="null" />.
/// </exception>
/// <remarks>
/// <para>
/// The declarative mechanism of registering model binders with Autofac
/// is through use of this method and the
/// <see cref="Autofac.Integration.Mvc.ModelBinderTypeAttribute"/>.
/// If you would like more imperative control over registration for your
/// model binders, see the <see cref="AsModelBinderForTypes{TLimit,TActivatorData,TRegistrationStyle}"/>
/// method.
/// </para>
/// <para>
/// The two mechanisms are mutually exclusive. If you register a model
/// binder using <see cref="AsModelBinderForTypes{TLimit,TActivatorData,TRegistrationStyle}"/>
/// and register the same model binder with this method, the results
/// are not automatically merged together - standard dependency
/// registration/resolution rules will be used to manage the conflict.
/// </para>
/// <para>
/// This method only registers types that implement <see cref="IModelBinder"/>
/// and are marked with the <see cref="Autofac.Integration.Mvc.ModelBinderTypeAttribute"/>.
/// The model binder must have the attribute because the
/// <see cref="Autofac.Integration.Mvc.AutofacModelBinderProvider"/> uses
/// the associated metadata - from the attribute(s) - to resolve the
/// binder based on model type. If there aren't any attributes, there
/// won't be any metadata, so the model binder will be technically
/// registered but will never actually be resolved.
/// </para>
/// <para>
/// If your model is not marked with the attribute, or if you don't want
/// to use attributes, use the
/// <see cref="AsModelBinderForTypes{TLimit,TActivatorData,TRegistrationStyle}"/>
/// extension instead.
/// </para>
/// </remarks>
public static IRegistrationBuilder<object, ScanningActivatorData, DynamicRegistrationStyle>
RegisterModelBinders(this ContainerBuilder builder, params Assembly[] modelBinderAssemblies)
{
if (builder == null) throw new ArgumentNullException("builder");
if (modelBinderAssemblies == null) throw new ArgumentNullException("modelBinderAssemblies");
return builder.RegisterAssemblyTypes(modelBinderAssemblies)
.Where(type => typeof(IModelBinder).IsAssignableFrom(type) && type.GetCustomAttributes(typeof(ModelBinderTypeAttribute), true).Length > 0)
.As<IModelBinder>()
.InstancePerHttpRequest()
.WithMetadata(AutofacModelBinderProvider.MetadataKey, type =>
(from ModelBinderTypeAttribute attribute in type.GetCustomAttributes(typeof(ModelBinderTypeAttribute), true)
from targetType in attribute.TargetTypes
select targetType).ToList());
}
/// <summary>
/// Registers the <see cref="AutofacFilterProvider"/>.
/// </summary>
/// <param name="builder">The container builder.</param>
public static void RegisterFilterProvider(this ContainerBuilder builder)
{
if (builder == null) throw new ArgumentNullException("builder");
foreach (var provider in FilterProviders.Providers.OfType<FilterAttributeFilterProvider>().ToArray())
FilterProviders.Providers.Remove(provider);
builder.RegisterType<AutofacFilterProvider>()
.As<IFilterProvider>()
.SingleInstance();
}
/// <summary>
/// Cache instances in the web session. This implies external ownership (disposal is not
/// available.) All dependencies must also have external ownership.
/// </summary>
/// <remarks>
/// It is strongly recommended that components cached per-session do not take dependencies on
/// other services.
/// </remarks>
/// <typeparam name="TLimit">Registration limit type.</typeparam>
/// <typeparam name="TSingleRegistrationStyle">Registration style.</typeparam>
/// <typeparam name="TActivatorData">Activator data type.</typeparam>
/// <param name="registration">The registration to configure.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
[SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope", Justification = "It is the responsibility of the registry to dispose of registrations.")]
public static IRegistrationBuilder<TLimit, TActivatorData, TSingleRegistrationStyle>
CacheInSession<TLimit, TActivatorData, TSingleRegistrationStyle>(
this IRegistrationBuilder<TLimit, TActivatorData, TSingleRegistrationStyle> registration)
where TActivatorData : IConcreteActivatorData
where TSingleRegistrationStyle : SingleRegistrationStyle
{
if (registration == null) throw new ArgumentNullException("registration");
var services = registration.RegistrationData.Services.ToArray();
registration.RegistrationData.ClearServices();
return registration
.ExternallyOwned()
.OnRegistered(e => e.ComponentRegistry.Register(RegistrationBuilder
.ForDelegate((c, p) =>
{
var session = HttpContext.Current.Session;
object result;
lock (session.SyncRoot)
{
result = session[e.ComponentRegistration.Id.ToString()];
if (result == null)
{
result = c.ResolveComponent(e.ComponentRegistration, p);
session[e.ComponentRegistration.Id.ToString()] = result;
}
}
return result;
})
.As(services)
.InstancePerLifetimeScope()
.ExternallyOwned()
.CreateRegistration()));
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IActionFilter"/> for the specified controller action.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="actionSelector">The action selector.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsActionFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration,
Expression<Action<TController>> actionSelector, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IActionFilter, TController>(registration, AutofacFilterProvider.ActionFilterMetadataKey, actionSelector, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IActionFilter"/> for the specified controller.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsActionFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IActionFilter, TController>(registration, AutofacFilterProvider.ActionFilterMetadataKey, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IAuthorizationFilter"/> for the specified controller action.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="actionSelector">The action selector.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsAuthorizationFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration,
Expression<Action<TController>> actionSelector, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IAuthorizationFilter, TController>(registration, AutofacFilterProvider.AuthorizationFilterMetadataKey, actionSelector, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IAuthorizationFilter"/> for the specified controller.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsAuthorizationFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IAuthorizationFilter, TController>(registration, AutofacFilterProvider.AuthorizationFilterMetadataKey, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IExceptionFilter"/> for the specified controller action.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="actionSelector">The action selector.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsExceptionFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration,
Expression<Action<TController>> actionSelector, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IExceptionFilter, TController>(registration, AutofacFilterProvider.ExceptionFilterMetadataKey, actionSelector, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IExceptionFilter"/> for the specified controller.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsExceptionFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IExceptionFilter, TController>(registration, AutofacFilterProvider.ExceptionFilterMetadataKey, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IResultFilter"/> for the specified controller action.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="actionSelector">The action selector.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsResultFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration,
Expression<Action<TController>> actionSelector, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IResultFilter, TController>(registration, AutofacFilterProvider.ResultFilterMetadataKey, actionSelector, order);
}
/// <summary>
/// Sets the provided registration to act as an <see cref="IResultFilter"/> for the specified controller.
/// </summary>
/// <typeparam name="TController">The type of the controller.</typeparam>
/// <param name="registration">The registration.</param>
/// <param name="order">The order in which the filter is applied.</param>
/// <returns>A registration builder allowing further configuration of the component.</returns>
public static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsResultFilterFor<TController>(this IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, int order = Filter.DefaultOrder)
where TController : IController
{
return AsFilterFor<IResultFilter, TController>(registration, AutofacFilterProvider.ResultFilterMetadataKey, order);
}
static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsFilterFor<TFilter, TController>(IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, string metadataKey, Expression<Action<TController>> actionSelector, int order)
where TController : IController
{
if (registration == null) throw new ArgumentNullException("registration");
if (actionSelector == null) throw new ArgumentNullException("actionSelector");
var limitType = registration.ActivatorData.Activator.LimitType;
if (!limitType.IsAssignableTo<TFilter>())
{
var message = string.Format(CultureInfo.CurrentCulture, RegistrationExtensionsResources.MustBeAssignableToFilterType,
limitType.FullName, typeof(TFilter).FullName);
throw new ArgumentException(message, "registration");
}
var metadata = new FilterMetadata
{
ControllerType = typeof(TController),
FilterScope = FilterScope.Action,
MethodInfo = GetMethodInfo(actionSelector),
Order = order
};
return registration.As<TFilter>().WithMetadata(metadataKey, metadata);
}
static IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle>
AsFilterFor<TFilter, TController>(IRegistrationBuilder<object, IConcreteActivatorData, SingleRegistrationStyle> registration, string metadataKey, int order)
where TController : IController
{
if (registration == null) throw new ArgumentNullException("registration");
var limitType = registration.ActivatorData.Activator.LimitType;
if (!limitType.IsAssignableTo<TFilter>())
{
var message = string.Format(CultureInfo.CurrentCulture, RegistrationExtensionsResources.MustBeAssignableToFilterType,
limitType.FullName, typeof(TFilter).FullName);
throw new ArgumentException(message, "registration");
}
var metadata = new FilterMetadata
{
ControllerType = typeof(TController),
FilterScope = FilterScope.Controller,
MethodInfo = null,
Order = order
};
return registration.As<TFilter>().WithMetadata(metadataKey, metadata);
}
static MethodInfo GetMethodInfo(LambdaExpression expression)
{
var outermostExpression = expression.Body as MethodCallExpression;
if (outermostExpression == null)
throw new ArgumentException(RegistrationExtensionsResources.InvalidActionExpress);
return outermostExpression.Method;
}
}
}