Working TLS!

1 files changed, 46 insertions, 39 deletions

diff --git a/net/server.lua b/net/server.lua
index 2cbfa3a2..1edbe7b7 100644
--- a/net/server.lua
+++ b/net/server.lua
@@ -446,7 +446,7 @@ wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, ss
 			local count = #data * STAT_UNIT

 			rstat = rstat + count

 			receivestat = receivestat + count

-			out_put( "server.lua: read data '", data, "', error: ", err )

+			--out_put( "server.lua: read data '", data, "', error: ", err )

 			return dispatch( handler, data, err )

 		else    -- connections was closed or fatal error

 			out_put( "server.lua: client ", ip, ":", clientport, " error: ", err )

@@ -470,7 +470,10 @@ wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, ss
 			writelen = removesocket( writelist, socket, writelen )    -- delete socket from writelist

 			if handler.need_tls then

 				out_put("server.lua: connection is ready for tls handshake");

-				handler.need_tls = not handler.starttls(true);

+				handler.starttls(true);

+				if handler.need_tls then

+					out_put("server.lua: uh-oh... we still want tls, something must be wrong");

+				end

 			end

 			return true

 		elseif byte and ( err == "timeout" or err == "wantwrite" ) then    -- want write

@@ -499,7 +502,7 @@ wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, ss
 	local wrote, read

 	

 	handler.starttls = function (now)

-		if not now then handler.need_tls = true; return; end

+		if not now then out_put("server.lua: we need to do tls, but delaying until later"); handler.need_tls = true; return; end

 		out_put( "server.lua: attempting to start tls on "..tostring(socket) )

 		socket, err = ssl_wrap( socket, sslctx )    -- wrap socket

 		out_put("sslwrapped socket is "..tostring(socket));

@@ -511,9 +514,6 @@ wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, ss
 		send = socket.send

 		receive = socket.receive

 		close = socket.close

-		print(readlen, writelen)

-		for _, s in ipairs(readlist) do print("R:", tostring(s)) end

-		for _, s in ipairs(writelist) do print("W:", tostring(s)) end

 		handler.ssl = function( )

 			return true

 		end

@@ -523,42 +523,46 @@ wraptlsclient = function( listener, socket, ip, serverport, clientport, mode, ss
 		handler.receive = function( pattern, prefix )

 			return receive( socket, pattern, prefix )

 		end

-	

-		handler.handshake = function (conn)

-							local succ, msg

-							out_put("ssl handshaking on socket "..tostring(conn))

-							conn:settimeout()

-							while not succ do

-								succ, msg = conn:dohandshake()

-								out_put("msg: "..tostring(msg))

-								if msg == 'wantread' then

-									socket_select({conn}, nil)

-								elseif msg == 'wantwrite' then

-									socket_select(nil, {conn})

-								elseif not succ then

-									-- other error

-									_ = err ~= "closed" and close( socket )

-									handler.close( )

-									disconnect( handler, err )

-									writequeue = nil

-									handler = nil

-									out_error("server.lua: ssl handshake failed");

-									return false    -- handshake failed

+		

+			handler.handshake = coroutine_wrap( function( client )

+					local err

+					for i = 1, 10 do    -- 10 handshake attemps

+						_, err = client:dohandshake( )

+						if not err then

+							out_put( "server.lua: ssl handshake done" )

+							writelen = ( wrote and removesocket( writelist, socket, writelen ) ) or writelen

+							handler.receivedata = handler._receivedata    -- when handshake is done, replace the handshake function with regular functions

+							handler.dispatchdata = handler._dispatchdata

+							handler.need_tls = nil

+							socketlist[ client ] = handler

+							readlen = readlen + 1

+							readlist[ readlen ] = client												

+							return true;

+						else

+							out_put( "server.lua: error during ssl handshake: ", err )

+							if err == "wantwrite" then

+								if wrote == nil then

+									writelen = writelen + 1

+									writelist[ writelen ] = client

+									wrote = true

 								end

-					

 							end

-							out_put("server.lua: ssl handshake succeeded!");

-							handler.receivedata = handler._receivedata;

-							handler.dispatchdata = handler._dispatchdata;

-							return true;

+							coroutine_yield( handler, nil, err )    -- handshake not finished

 						end

-		

-		handler.receivedata = handler.handshake

-		handler.dispatchdata = handler.handshake

+					end

+					_ = err ~= "closed" and close( socket )

+					handler.close( )

+					disconnect( handler, err )

+					writequeue = nil

+					handler = nil

+					return false    -- handshake failed

+				end

+			)

+			handler.receivedata = handler.handshake

+			handler.dispatchdata = handler.handshake

 

-		return handler.handshake( socket )    -- do handshake

-	end

-	

+			handler.handshake( socket )    -- do handshake

+		end

 	socketlist[ socket ] = handler

 	readlen = readlen + 1

 	readlist[ readlen ] = socket

@@ -785,7 +789,10 @@ end
 loop = function( )    -- this is the main loop of the program

 	--signal_set( "hub", "run" )

 	repeat

-		out_put("select()")

+		--[[print(readlen, writelen)

+		for _, s in ipairs(readlist) do print("R:", tostring(s)) end

+		for _, s in ipairs(writelist) do print("W:", tostring(s)) end

+		out_put("select()"..os.time())]]

 		local read, write, err = socket_select( readlist, writelist, 1 )    -- 1 sec timeout, nice for timers

 		for i, socket in ipairs( write ) do    -- send data waiting in writequeues

 			local handler = socketlist[ socket ]