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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / ManagedLibraries / Remoting / Channels / HTTP / HttpSocketManager.cs / 1305376 / HttpSocketManager.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== //========================================================================== // File: HttpSocketManager.cs // // Summary: Provides a base for the client and server http socket // managers. // //========================================================================= using System; using System.Collections; using System.Globalization; using System.IO; using System.Net; using System.Net.Sockets; using System.Runtime.Remoting.Messaging; using System.Text; using System.Threading; namespace System.Runtime.Remoting.Channels.Http { // A client socket manager instance should encapsulate the socket // for the purpose of reading a response internal abstract class HttpSocketHandler : SocketHandler { private static byte[] s_httpVersion = Encoding.ASCII.GetBytes("HTTP/1.1"); private static byte[] s_httpVersionAndSpace = Encoding.ASCII.GetBytes("HTTP/1.1 "); private static byte[] s_headerSeparator = new byte[]{(byte)':',(byte)' '}; private static byte[] s_endOfLine = new byte[]{(byte)'\r',(byte)'\n'}; public HttpSocketHandler(Socket socket, RequestQueue requestQueue, Stream stream) : base(socket, requestQueue, stream) { } // HttpSocketHandler protected void ReadToEndOfHeaders(BaseTransportHeaders headers, out bool bChunked, out int contentLength, ref bool bKeepAlive, ref bool bSendContinue) { bChunked = false; contentLength = 0; // read and process headers for (;;) { String header = ReadToEndOfLine(); // stop reading headers at first blank line if (header.Length == 0) break; int sep = header.IndexOf(":"); String headerName = header.Substring(0,sep); String headerValue = header.Substring(sep+1+1); // skip semi-colon and space if (String.Compare(headerName, "Transfer-Encoding", StringComparison.OrdinalIgnoreCase) == 0) { if (String.Compare(headerValue, "chunked", StringComparison.OrdinalIgnoreCase) == 0) { bChunked = true; } } else if (String.Compare(headerName, "Connection", StringComparison.OrdinalIgnoreCase) == 0) { if (String.Compare(headerValue, "Keep-Alive", StringComparison.OrdinalIgnoreCase) == 0) bKeepAlive = true; else if (String.Compare(headerValue, "Close", StringComparison.OrdinalIgnoreCase) == 0) bKeepAlive = false; } else if (String.Compare(headerName, "Expect", StringComparison.OrdinalIgnoreCase) == 0) { if (String.Compare(headerValue, "100-continue", StringComparison.OrdinalIgnoreCase) == 0) bSendContinue = true; } else if (String.Compare(headerName, "Content-Length", StringComparison.OrdinalIgnoreCase) == 0) { contentLength = Int32.Parse(headerValue, CultureInfo.InvariantCulture); } else { headers[headerName] = headerValue; } } } // ReadToEndOfHeaders protected void WriteHeaders(ITransportHeaders headers, Stream outputStream) { if (headers == null) return; foreach (DictionaryEntry header in headers) { String headerName = (String)header.Key; if (!headerName.StartsWith("__", StringComparison.Ordinal)) // exclude special headers { WriteHeader(headerName, (String)header.Value, outputStream); } } // write end of headers "\r\n" outputStream.Write(s_endOfLine, 0, s_endOfLine.Length); } // WriteHeaders private void WriteHeader(String name, String value, Stream outputStream) { byte[] nameBytes = Encoding.ASCII.GetBytes(name); byte[] valueBytes = Encoding.ASCII.GetBytes(value); outputStream.Write(nameBytes, 0, nameBytes.Length); outputStream.Write(s_headerSeparator, 0, s_headerSeparator.Length); outputStream.Write(valueBytes, 0, valueBytes.Length); outputStream.Write(s_endOfLine, 0, s_endOfLine.Length); } // WriteHeader protected void WriteResponseFirstLine(String statusCode, String reasonPhrase, Stream outputStream) { byte[] statusCodeBytes = Encoding.ASCII.GetBytes(statusCode); byte[] reasonPhraseBytes = Encoding.ASCII.GetBytes(reasonPhrase); outputStream.Write(s_httpVersionAndSpace, 0, s_httpVersionAndSpace.Length); outputStream.Write(statusCodeBytes, 0, statusCodeBytes.Length); outputStream.WriteByte((byte)' '); outputStream.Write(reasonPhraseBytes, 0, reasonPhraseBytes.Length); outputStream.Write(s_endOfLine, 0, s_endOfLine.Length); } // WriteResponseFirstLine } // class HttpSocketHandler } // namespace System.Runtime.Remoting.Channels.Tcp // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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