Cleanup network module.

Assets/Cryville/Common/Network/Http11/Http11Response.cs

@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace Cryville.Common.Network.Http11 {
+	public class Http11Response {
+		static readonly char[] spchar = new char[]{ ' ' };
+		public string HttpVersion { get; private set; }
+		public string StatusCode { get; private set; }
+		public string ReasonPhase { get; private set; }
+		public Dictionary<string, string> Headers { get; private set; }
+		public Http11ResponseStream MessageBody { get; private set; }
+		internal Http11Response(Stream stream) {
+			var reader = new BinaryReader(stream, Encoding.ASCII);
+			var statu_line = ReadLine(reader).Split(spchar, 3);
+			HttpVersion = statu_line[0];
+			StatusCode = statu_line[1];
+			ReasonPhase = statu_line[2];
+			Headers = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+			while (ParseHeader(reader, Headers)) ;
+			if (Headers.ContainsKey("content-length")) {
+				int length = int.Parse(Headers["content-length"]);
+				MessageBody = new Http11ResponseBlockStream(reader, length);
+			}
+			else if (Headers.ContainsKey("transfer-encoding") && Headers["transfer-encoding"] == "chunked") {
+				MessageBody = new Http11ResponseChunkedStream(reader);
+			}
+		}
+
+		public override string ToString() {
+			return string.Format("<{0} {1} {2}>", HttpVersion, StatusCode, ReasonPhase);
+		}
+
+		internal static bool ParseHeader(BinaryReader reader, Dictionary<string, string> headers) {
+			// TODO Multiline header
+			var header = ReadLine(reader);
+			if (header == "") return false;
+			var s = header.Split(':', 2);
+			string field_name = s[0].Trim().ToLower();
+			string field_value = s[1].Trim();
+			if (headers.ContainsKey(field_name)) headers[field_name] += "," + field_value;
+			else headers.Add(field_name, field_value);
+			return true;
+		}
+
+		internal static string ReadLine(BinaryReader reader) {
+			StringBuilder result = new StringBuilder();
+			char c;
+			while (true) {
+				c = reader.ReadChar();
+				if (c == '\r') break;
+				result.Append(c);
+			}
+			// TODO Unseekable
+			reader.ReadByte();
+			return result.ToString();
+		}
+	}
+}