username1565
diff --git a/‎Changes.txt
Lines changed: 98 additions & 1 deletion b/‎Changes.txt
Lines changed: 98 additions & 1 deletion
@@ -9,7 +9,104 @@ BEGIN CHANGELOG:
 __________________________________________________________________________________________________________________________________________________________________
 (XX.XX.XXXX)	commit	(latest, unknown hash)	? files changed with ? additions and ? deletions.
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-(22.06.2021)	commit	(latest, unknown hash)	8 files changed with ? additions and ? deletions.
+(23.06.2021)	commit	(latest, unknown hash)	2 files changed with ? additions and ? deletions.
+
+	Rewrite TcpServer.cs
+	
+Short changes:
+	Move long code into separate methods, and use refs to modify variable by this "private void methods".
+	Add parsing headers, select encoding ("iso-8859-1") for response on binary request, and encoding UTF-8 for response on text request.
+	Set is_binary_request when "Content-Type: application/octet-stream" contains in headers.
+	Rename contentLength to requestLength, because headers.Length contains there, too, so this is not Content-Length.
+	
+Full changes:
+	\nanodb.exe-source\Server\TcpServer.cs
+		Lines 248		:	remove 3 lines with test Console.WriteLine
+		Lines 249		:	remove 1 line with test Console.WriteLine
+		Lines 250		:	remove 1 line with test Console.WriteLine
+		Lines 257		:	remove 3 lines with test Console.WriteLine
+		Lines 259		:	remove 1 line with test Console.WriteLine
+		Lines 268		:	remove 3 lines with test Console.WriteLine
+		Lines 291		:	remove 1 line with test Console.WriteLine
+		Lines 307		:	remove 1 line with test code and change comment.
+		Lines 341		:	remove 1 lines with test code
+		Lines 382		:	remove 1 lines with test code
+		Lines 374		:	remove 1 lines with test code
+		Lines 426		:	remove 7 lines with test code
+		Lines 434		:	remove 17 lines with test code
+		Lines 444		:	remove 2 lines with test code
+		Lines 448		:	move 2 lines with comment, before stream.BeginWrite
+		Lines 457		:	add new-line after the end of try-section.
+		Lines 459		:	remove 11 lines with test Console.WriteLine
+		Lines 467 - 468	:	set two variables as false, when data sucessfully writted.
+		Lines 472 - 483	:	Add private void TryToApplyTcpDelay						- to set tcp delay, if need.
+		Lines 485 - 507	:	Add private void AddReadedBytesFromBlock				- to read bytes from NetworkStream stream, block-by-block
+		Lines 509 - 566	:	Add private void TryToExtractHeaderFromRequest			- to try to extract headers, if this already readed.
+		Lines 568 - 599	:	Add private void TryUpdaterequestLength					- to try update "requestLength", when Content-Length not specified in headers.
+		Lines 601 - 652	:	Add private void TryToLoadLargeRequestWithPostsInJSON	- to load the large POST-request with JSON-file,
+								before client disconnected, and try to upload this then.
+		Lines 654 - 700 :	Add private void TryToUploadIntoDataBaseThePostsFromLoadedRequestWithJSON
+								to upload the loaded JSON, using PostDb Upload_Posts.
+		Lines 702 - 731	:	Add private void WriteBytesOfResponse					- to write the different responces (binary or text)
+		Lines 733 - 877	:	Rewrite private void HandleClient
+								Rename "buffer" to "block", and "block" to "BlockAsString" (inside AddReadedBytesFromBlock)
+									because this is a block of bytes, that readed block-by-block.
+								Rename "contentLength" to "requestLength", because headers.Length added for this value.
+								Use added subprograms, with "ref", there, to make code shorter and more readable.
+								Extract headers from NetworkStream stream, in the reading process.
+								Extract Content-Length if exists, and set requestLength value, or update this value everytime, when new block readed.
+								Set is_binary_request=true and change enc to "latin1" (iso-8859-1) for binary request,
+									when "Content-Type: application/octet-stream" contains in headers.
+								Use binary response, and encode bytes as "iso-8859-1"-text,
+									using dynamic redefined value of "enc"-variable.
+								Decode headers as ASCII-compatible ISO-8859-1 (latin1) encoding,
+									and change encoding by to UTF8 (by decode from raw-bytes again, in second part of TryToExtractHeaderFromRequest),
+									and do this if request is not binary, but text. Also set raw as null, and do not add bytes there, then.
+									Else, read bytes up to end in "raw", and do not add "blocks" into the string "readData", and set it as "null".
+										As result of this all:
+											binary-request contains bytes, and readData = null.	Response encoded with "iso-8859-1" encoding.
+											text-request contains utf-8 text in readData, and raw = null. Response encoded with "UTF-8" encoding.
+	\Changes.txt - Update this file "Changes.txt"
+
+		That is all changes.
+
+TL;DR
+		"iso-8859-1", this is ASCII-compatible, and moreover reversive encoding (thic contains all characters from range \u0000-\u00FF),
+		that can encode all 256-bytes into 256-chars, and decode this back.
+		With CSharp, and with JavaScript.
+		So, because of this, the binary data can be transferred between client and server,
+		as "iso-8859-1"-strings, in HTTP-requests (because the methods, in DbApiHandler.cs, accepting strings only)
+		or/and in responses.
+
+	(Tests)
+		C#:
+			byte[] AllBytes = new byte[256]; for(var i = 0; i<AllBytes.Length; i++){AllBytes[i] = (byte)i;}		//Get AllBytes
+			System.Text.Encoding enc;																			//Define this
+            
+			//Test UTF8
+			enc = System.Text.Encoding.UTF8;
+			Console.WriteLine("AllBytes equals DecodedBytes? "+AllBytes.SequenceEqual(enc.GetBytes(enc.GetString(AllBytes))));	//False
+
+			//Test ASCII
+			enc = System.Text.Encoding.ASCII;
+			Console.WriteLine("AllBytes equals DecodedBytes? "+AllBytes.SequenceEqual(enc.GetBytes(enc.GetString(AllBytes))));	//False
+            
+			//Test Latin1 (iso-8859-1)
+			enc = System.Text.Encoding.GetEncoding("iso-8859-1");
+			Console.WriteLine("AllBytes equals DecodedBytes? "+AllBytes.SequenceEqual(enc.GetBytes(enc.GetString(AllBytes))));	//True
+
+		JavaScript:
+			var AllBytes = new Uint8Array(256); for(var i = 0; i<AllBytes.length; i++){AllBytes[i] = i;}				//AllBytes
+			var s = ''; for(var i = 0; i<AllBytes.length; i++){s += String.fromCharCode(AllBytes[i]);}					//encode
+			var DecodedBytes = new Uint8Array(s.length); for(var i=0; i<s.length; i++){DecodedBytes[i]=s.charCodeAt(i);}//decode
+			console.log("AllBytes equals DecodedBytes? "+(AllBytes.toString() === DecodedBytes.toString()));			//true
+		
+			//console.log(new TextEncoder("utf-8").encode(new TextDecoder("utf-8").decode(AllBytes)).toString() === AllBytes.toString());	//utf8 - false;
+			
+So iso is reversive, and can be used to encode binary-requests and response, as strings, without growing the size of this strings.
+1 char = 1 byte, all possible values allowed.
+__________________________________________________________________________________________________________________________________________________________________
+(22.06.2021)	commit	8520fe36ed8cfeb8bd33b6fd8c6b01d42a1f41df	8 files changed with 127 additions and 34 deletions.
 
 	Rewrite MimeTypes.cs