62 lines
1.8 KiB
C#
62 lines
1.8 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 System;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Routing;
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namespace RoutingSample.Web
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{
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public class PrefixRoute : IRouter
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{
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private readonly IRouteHandler _target;
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private readonly string _prefix;
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public PrefixRoute(IRouteHandler 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 Task RouteAsync(RouteContext context)
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{
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var requestPath = context.HttpContext.Request.Path.Value ?? string.Empty;
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if (requestPath.StartsWith(_prefix, StringComparison.OrdinalIgnoreCase))
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{
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if (requestPath.Length > _prefix.Length)
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{
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var lastCharacter = requestPath[_prefix.Length];
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if (lastCharacter != '/' && lastCharacter != '#' && lastCharacter != '?')
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{
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return Task.CompletedTask;
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}
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}
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context.Handler = _target.GetRequestHandler(context.HttpContext, context.RouteData);
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}
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return Task.CompletedTask;
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}
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public VirtualPathData 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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} |