60 lines
1.9 KiB
C#
60 lines
1.9 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc.
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// All Rights Reserved
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
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// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
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// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
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// NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing
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// permissions and limitations under the License.
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Text.RegularExpressions;
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using Microsoft.AspNet.Abstractions;
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namespace Microsoft.AspNet.Routing
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{
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public class RegexConstraint : IRouteConstraint
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{
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public RegexConstraint([NotNull] Regex regex)
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{
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Constraint = regex;
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}
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public RegexConstraint([NotNull] string regexPattern)
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{
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Constraint = new Regex(regexPattern, RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
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}
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public Regex Constraint { get; private set; }
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public bool Match([NotNull] HttpContext httpContext,
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[NotNull] IRouter route,
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[NotNull] string routeKey,
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[NotNull] IDictionary<string, object> routeValues,
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RouteDirection routeDirection)
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{
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object routeValue;
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if (routeValues.TryGetValue(routeKey, out routeValue)
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&& routeValue != null)
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{
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var parameterValueString = Convert.ToString(routeValue, CultureInfo.InvariantCulture);
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return Constraint.IsMatch(parameterValueString);
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}
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return false;
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}
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}
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}
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