62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Net;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Http.Extensions;
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using Microsoft.Extensions.Primitives;
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using mvc.Models;
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namespace mvc.Controllers
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{
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public class RedirectController : Controller
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{
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public IActionResult Index(int count)
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{
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string url = Regex.Replace(input: Request.GetDisplayUrl(), pattern: "\\/Redirect.*", replacement: string.Empty, options: RegexOptions.IgnoreCase);
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if (count <= 1)
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{
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url = $"{url}/Get/";
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}
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else
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{
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int nextHop = count - 1;
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url = $"{url}/Redirect/{nextHop}";
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}
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var typeIsPresent = Request.Query.TryGetValue("type", out StringValues type);
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if (typeIsPresent && Enum.TryParse(type.FirstOrDefault(), out HttpStatusCode status))
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{
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Response.StatusCode = (int)status;
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url = $"{url}?type={type.FirstOrDefault()}";
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Response.Headers.Add("Location", url);
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}
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else if (typeIsPresent && string.Equals(type.FirstOrDefault(), "relative", StringComparison.InvariantCultureIgnoreCase))
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{
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url = new Uri($"{url}?type={type.FirstOrDefault()}").PathAndQuery;
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Response.Redirect(url, false);
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}
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else
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{
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Response.Redirect(url, false);
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}
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ViewData["Url"] = url;
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return View();
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}
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public IActionResult Error()
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{
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return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
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}
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}
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}
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