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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* This software is subject to the Microsoft Public License (Ms-PL).
* A copy of the license can be found in the license.htm file included
* in this distribution.
*
* You must not remove this notice, or any other, from this software.
*
* ***************************************************************************/
namespace System.Web.Mvc {
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Reflection;
using System.Web.Mvc.Resources;
[SuppressMessage("Microsoft.Design", "CA1019:DefineAccessorsForAttributeArguments",
Justification = "The accessor is exposed as an ICollection<string>.")]
[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class AcceptVerbsAttribute : ActionMethodSelectorAttribute {
public AcceptVerbsAttribute(HttpVerbs verbs)
: this(EnumToArray(verbs)) {
}
public AcceptVerbsAttribute(params string[] verbs) {
if (verbs == null || verbs.Length == 0) {
throw new ArgumentException(MvcResources.Common_NullOrEmpty, "verbs");
}
Verbs = new ReadOnlyCollection<string>(verbs);
}
public ICollection<string> Verbs {
get;
private set;
}
private static void AddEntryToList(HttpVerbs verbs, HttpVerbs match, List<string> verbList, string entryText) {
if ((verbs & match) != 0) {
verbList.Add(entryText);
}
}
internal static string[] EnumToArray(HttpVerbs verbs) {
List<string> verbList = new List<string>();
AddEntryToList(verbs, HttpVerbs.Get, verbList, "GET");
AddEntryToList(verbs, HttpVerbs.Post, verbList, "POST");
AddEntryToList(verbs, HttpVerbs.Put, verbList, "PUT");
AddEntryToList(verbs, HttpVerbs.Delete, verbList, "DELETE");
AddEntryToList(verbs, HttpVerbs.Head, verbList, "HEAD");
return verbList.ToArray();
}
public override bool IsValidForRequest(ControllerContext controllerContext, MethodInfo methodInfo) {
if (controllerContext == null) {
throw new ArgumentNullException("controllerContext");
}
string incomingVerb = controllerContext.HttpContext.Request.GetHttpMethodOverride();
return Verbs.Contains(incomingVerb, StringComparer.OrdinalIgnoreCase);
}
}
}
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