41 lines
1.2 KiB
C#
41 lines
1.2 KiB
C#
// Copyright (c) .NET Foundation. All rights reserved.
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// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
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using Microsoft.AspNet.Http;
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using Microsoft.AspNet.Mvc.ActionConstraints;
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namespace VersioningWebSite
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{
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public class VersionRangeValidator : IActionConstraint
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{
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private readonly int? _minVersion;
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private readonly int? _maxVersion;
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public int Order { get; set; }
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public VersionRangeValidator(int? minVersion, int? maxVersion)
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{
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_minVersion = minVersion;
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_maxVersion = maxVersion;
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}
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public static string GetVersion(HttpRequest request)
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{
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return request.Query["version"];
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}
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public bool Accept(ActionConstraintContext context)
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{
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int version;
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if (int.TryParse(GetVersion(context.RouteContext.HttpContext.Request), out version))
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{
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return (_minVersion == null || _minVersion <= version) &&
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(_maxVersion == null || _maxVersion >= version);
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}
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else
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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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} |