Request body mangling

[whfung]

uniwebserver/UniWebServer/Assets/UniWebServer/Lib/WebServer.cs

Lines 123 to 126 in 5b0a566

	while (count > 0) {
	offset = stream.Read (bytes, offset, count);
	count -= offset;
	}

Apparently some of the forks already fix this, but we ran into POST requests being mangled when running this headless in a virtualized environment. After investigation, we found this block, which sets the read offset to the # of bytes read every iteration.

This doesn't happen on localhost because Read() fully empties the stream in one iteration but as soon as we deployed it on a VM Read() gets called multiple times and it started chopping up our uploaded data.

To fix the issue we corrected the usage of Read():

while (count > 0) {
	var bytesRead = stream.Read (bytes, offset, count);
        offset += bytesRead;
	count -= bytesRead;
}

Hope this saves someone some time. That's all.