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90 lines
3.4 KiB
C#
90 lines
3.4 KiB
C#
//
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// HttpMethodConstraint.cs
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//
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// Author:
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// Atsushi Enomoto <atsushi@ximian.com>
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//
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// Copyright (C) 2008 Novell Inc. http://novell.com
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using System.Security.Permissions;
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using System.Web;
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namespace System.Web.Routing
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{
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[TypeForwardedFrom ("System.Web.Routing, Version=3.5.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35")]
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[AspNetHostingPermission (SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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[AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
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public class HttpMethodConstraint : IRouteConstraint
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{
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public HttpMethodConstraint (params string[] allowedMethods)
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{
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if (allowedMethods == null)
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throw new ArgumentNullException ("allowedMethods");
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AllowedMethods = allowedMethods;
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}
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public ICollection<string> AllowedMethods { get; private set; }
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bool IRouteConstraint.Match (HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
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{
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return Match (httpContext, route, parameterName, values, routeDirection);
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}
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protected virtual bool Match (HttpContextBase httpContext, Route route, string parameterName, RouteValueDictionary values, RouteDirection routeDirection)
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{
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if (httpContext == null)
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throw new ArgumentNullException ("httpContext");
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if (route == null)
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throw new ArgumentNullException ("route");
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if (parameterName == null)
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throw new ArgumentNullException ("parameterName");
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if (values == null)
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throw new ArgumentNullException ("values");
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switch (routeDirection) {
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case RouteDirection.IncomingRequest:
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// LAMESPEC: .NET allows case-insensitive comparison, which violates RFC 2616
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return AllowedMethods.Contains (httpContext.Request.HttpMethod);
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case RouteDirection.UrlGeneration:
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// See: aspnetwebstack's WebAPI equivalent for details.
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object method;
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if (!values.TryGetValue (parameterName, out method))
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return true;
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// LAMESPEC: .NET allows case-insensitive comparison, which violates RFC 2616
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return AllowedMethods.Contains (Convert.ToString (method));
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default:
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throw new ArgumentException ("Invalid routeDirection: " + routeDirection);
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}
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}
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}
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}
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