ICRS-NBKI-Request

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#region License
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//------------------------------------------------------------------------------
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// Copyright (c) Dmitrii Evdokimov
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// Source https://github.com/diev/
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// 
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//------------------------------------------------------------------------------
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#endregion
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using System;
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using System.IO;
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using System.Net;
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using System.Security.Cryptography.X509Certificates;
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namespace ICRS_NBKI_Request
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{
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    /// <summary>
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    /// Тест двусторонней аутентификации TLS
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    /// </summary>
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    public static class TestTLS
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    {
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        /// <summary>
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        /// Тест получения страницы при переходе на двустороннюю аутентификацию TLS
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        /// </summary>
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        public static void Run(X509Certificate certificate)
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        {
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            string uri = "https://reports.demo.nbki.ru/";
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            string result = Request(uri, certificate);
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            Console.WriteLine(result.Length > 200 ? result.Substring(0, 200) : result);
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        }
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        /// <summary>
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        /// Запрос страницы для теста.
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        /// </summary>
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        /// <param name="uri">Адрес страницы.</param>
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        /// <returns>Текст страницы.</returns>
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        private static string Request(string uri, X509Certificate certificate)
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        {
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            var request = (HttpWebRequest)WebRequest.Create(uri);
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            request.ClientCertificates.Add(certificate);
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            return Response(request);
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        }
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        /// <summary>
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        /// Получение страницы для теста.
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        /// </summary>
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        /// <param name="request">Запрос страницы.</param>
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        /// <returns>Текст страницы.</returns>
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        private static string Response(HttpWebRequest request)
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        {
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            var response = (HttpWebResponse)request.GetResponse();
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            if (response.StatusCode != HttpStatusCode.OK)
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            {
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                throw new InvalidOperationException($"Unexpected behavior! Status code: {response.StatusCode}.");
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            }
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            using (var streamReader = new StreamReader(response.GetResponseStream()
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                ?? throw new InvalidOperationException("Response stream is null.")))
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            {
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                return streamReader.ReadToEnd();
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            }
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        }
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    }
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}
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