90 lines
2.8 KiB
C#
90 lines
2.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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namespace Tesses.Http
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{
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/// <summary>
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/// mount multiple servers at different url paths
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/// </summary>
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public sealed class MountableServer : IRequestHandler
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{
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Dictionary<string, IRequestHandler> _servers = new Dictionary<string, IRequestHandler>();
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public MountableServer(IRequestHandler root)
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{
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_root = root;
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}
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IRequestHandler _root;
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private (string Key,IRequestHandler Value) GetFromPath(ServerContext ctx)
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{
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string path = ctx.Request.GetQueryParameters(ctx.Request.CurrentUrl,new Dictionary<string, List<string>>());
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//bool j = false;
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foreach(var item in _servers.Reverse())
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{
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if(path.StartsWith(item.Key,StringComparison.Ordinal))
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{
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return (item.Key,RequestHandler.Guaranteed(ctx,item.Value));
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}
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if (path == item.Key.TrimEnd('/'))
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{
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path += "/";
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return (item.Key,RequestHandler.Guaranteed(ctx,item.Value));
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}
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}
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//Console.WriteLine("HERE WE ARE");
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return ("/",RequestHandler.Guaranteed(ctx,_root));
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}
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/// <summary>
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/// Mount the specified url and server.
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/// Must mount like this
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/// /somePath0
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/// /somePath0/someSubPath0
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/// /somePath0/someSubPath0/someSubSubPath0
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/// /somePath0/someSubPath0/someSubSubPath1
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/// /somePath0/someSubPath1
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/// /somePath0/someSubPath1/someSubSubPath0
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/// /somePath0/someSubPath1/someSubSubPath1
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/// </summary>
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/// <param name="url">URL.</param>
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/// <param name="server">Server.</param>
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public void Mount(string url,IRequestHandler server)
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{
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_servers.Add(url, server);
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}
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/// <summary>
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/// Unmount a server
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/// </summary>
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/// <param name="url">Url</param>
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public void Unmount(string url)
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{
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_servers.Remove(url);
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}
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/// <summary>
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/// Unmount all servers
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/// </summary>
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public void UnmountAll()
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{
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_servers.Clear();
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}
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public async Task Handle(ServerContext ctx)
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{
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var v = GetFromPath(ctx);
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string[] curUrl =ctx.Request.CurrentUrl.Split(new char[]{'?'},2,StringSplitOptions.RemoveEmptyEntries);
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string url = '/' + curUrl[0].Substring(v.Key.Length).TrimStart('/');
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if(curUrl.Length > 1)
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{
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url += $"?{curUrl[1]}";
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}
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ctx.Request.CurrentUrl = url;
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await v.Value.Handle(ctx);
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}
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}
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}
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