diff --git a/Samples/FilesSample.cs b/Samples/FilesSample.cs index 626cbb0..4adecbb 100644 --- a/Samples/FilesSample.cs +++ b/Samples/FilesSample.cs @@ -1,4 +1,5 @@ using System; +using System.Collections.Generic; using System.Net; using System.Threading; using Ooui; @@ -35,11 +36,102 @@ namespace Samples var ct = req.ContentType; var bi = ct.IndexOf ("boundary=", StringComparison.InvariantCulture); var boundaryString = ct.Substring (bi + 9); - var boundaryBytes = System.Text.Encoding.UTF8.GetBytes (boundaryString); + var boundaryBytes = System.Text.Encoding.UTF8.GetBytes ("--" + boundaryString + "\r\n"); var boundaryEndBytes = System.Text.Encoding.UTF8.GetBytes (boundaryString + "--"); + var headerEndBytes = System.Text.Encoding.UTF8.GetBytes ("\r\n\r\n"); Console.WriteLine ("OMGGGGGG " + boundaryString); + + var state = 0; + var buffer = new byte[1024]; + var bufferLen = 0; + + var needsRead = true; + + using (var s = req.InputStream) { + while (state < 1000) { + if (needsRead) { + var r = buffer.Length - bufferLen; + if (r <= 0) { + Array.Resize (ref buffer, buffer.Length * 2); + r = buffer.Length - bufferLen; + } + var n = s.Read (buffer, bufferLen, r); + if (n > 0) { + bufferLen += n; + } + else if (n == 0) { + // End! + state = 1000; + } + else { + state = 1001; + } + } + switch (state) { + case 0: + var i = FindIndex (buffer, 0, bufferLen, boundaryBytes); + if (i >= 0) { + var e = i + boundaryBytes.Length; + var r = bufferLen - e; + Buffer.BlockCopy (buffer, e, buffer, 0, r); + bufferLen = r; + state = 1; + } + else { + needsRead = true; + } + break; + case 1: + i = FindIndex (buffer, 0, bufferLen, headerEndBytes); + if (i >= 0) { + var h = System.Text.Encoding.ASCII.GetString (buffer, 0, i); + Console.WriteLine ("HEADERS {0}", h); + var e = i + headerEndBytes.Length; + var r = bufferLen - e; + Buffer.BlockCopy (buffer, e, buffer, 0, r); + bufferLen = r; + state = 2; + } + else { + needsRead = true; + } + break; + case 2: + i = FindIndex (buffer, 0, bufferLen, boundaryEndBytes); + if (i >= 0) { + Console.WriteLine ("DATA {0}", bufferLen); + var data = new byte[bufferLen]; + var e = i + boundaryBytes.Length; + var r = bufferLen - e; + Buffer.BlockCopy (buffer, e, buffer, 0, r); + bufferLen = r; + state = 0; + } + else { + needsRead = true; + } + break; + } + } + } + + Console.WriteLine ("STATE " + state); listenerContext.Response.StatusCode = 200; listenerContext.Response.Close (); } + + static int FindIndex (byte[] buffer, int bufferStart, int bufferLen, byte[] pattern) + { + var n = pattern.Length; + for (var i = bufferLen - n; i >= bufferStart; i--) { + var all = true; + for (var j = 0; all && j < n; j++) { + all = buffer[i + j] == pattern[j]; + } + if (all) + return i; + } + return -1; + } } }