59 lines
1.6 KiB
C#
59 lines
1.6 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
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using System;
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using System.Threading.Tasks;
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using Microsoft.AspNet.Routing;
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namespace RoutingSample
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{
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internal class PrefixRoute : IRouter
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{
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private readonly IRouter _target;
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private readonly string _prefix;
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public PrefixRoute(IRouter target, string prefix)
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{
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_target = target;
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if (prefix == null)
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{
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prefix = "/";
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}
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else if (prefix.Length > 0 && prefix[0] != '/')
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{
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// owin.RequestPath starts with a /
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prefix = "/" + prefix;
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}
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if (prefix.Length > 1 && prefix[prefix.Length - 1] == '/')
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{
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prefix = prefix.Substring(0, prefix.Length - 1);
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}
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_prefix = prefix;
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}
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public async Task RouteAsync(RouteContext context)
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{
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if (context.RequestPath.StartsWith(_prefix, StringComparison.OrdinalIgnoreCase))
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{
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if (context.RequestPath.Length > _prefix.Length)
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{
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var lastCharacter = context.RequestPath[_prefix.Length];
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if (lastCharacter != '/' && lastCharacter != '#' && lastCharacter != '?')
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{
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return;
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}
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}
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await _target.RouteAsync(context);
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}
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}
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public string GetVirtualPath(VirtualPathContext context)
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{
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return null;
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}
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}
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}
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