108 lines
2.9 KiB
C#
108 lines
2.9 KiB
C#
using System;
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using ln.types;
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using System.IO;
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using System.Net.Sockets;
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using System.Net.Security;
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namespace ln.http.client
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{
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public class HttpClientRequest
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{
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public HttpClient HttpClient { get; }
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public URI URI
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{
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get => uri;
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set
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{
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if (!value.Scheme.Equals("http") && !value.Scheme.Equals("https"))
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throw new ArgumentOutOfRangeException(nameof(value), String.Format("unsupported url scheme: {0}", value.Scheme));
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uri = value;
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}
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}
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public HttpHeaders Headers { get; } = new HttpHeaders();
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public String Method { get; set; }
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URI uri;
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MemoryStream contentStream;
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HttpClientResponse clientResponse;
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public HttpClientRequest(HttpClient httpClient, URI uri)
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{
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HttpClient = httpClient;
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URI = uri;
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Headers.Add("user-agent", "ln.http.client");
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}
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public Stream GetContentStream()
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{
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if (clientResponse != null)
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throw new NotSupportedException("Request has already been executed, content stream has been disposed");
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if (contentStream == null)
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contentStream = new MemoryStream();
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return contentStream;
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}
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public HttpClientResponse GetResponse()
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{
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if (clientResponse == null)
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{
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executeRequest();
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}
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return clientResponse;
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}
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private Stream OpenConnection()
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{
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TcpClient tcpClient = null;
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SslStream sslStream = null;
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try
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{
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tcpClient = new TcpClient();
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tcpClient.ExclusiveAddressUse = false;
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tcpClient.Connect(URI.Host, int.Parse(URI.Port));
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if (!tcpClient.Connected)
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throw new IOException(String.Format("could not connect to host {0}",uri.Host));
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if (uri.Scheme.Equals("https"))
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{
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sslStream = new SslStream(tcpClient.GetStream());
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return sslStream;
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}
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return tcpClient.GetStream();
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} catch (Exception)
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{
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if (sslStream != null)
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sslStream.Dispose();
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if (tcpClient != null)
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tcpClient.Dispose();
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throw;
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}
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}
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private void executeRequest()
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{
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if (contentStream.Length > 0)
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{
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byte[] requestContent = contentStream.ToArray();
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Headers.Add("content-length", requestContent.Length.ToString());
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}
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Stream connectionStream = OpenConnection();
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clientResponse = new HttpClientResponse(this);
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contentStream.Dispose();
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}
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}
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}
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