Connecting to SSL/TLS sites via a proxy not possible

[wuzz]

OK, here's the problem:

Connecting to TLS_site via Proxy
220 Connected. Please proceed.
USER proxy_user
331 User name okay, need password.
PASS (hidden)
230 User logged in to proxy.
OPEN TLS_site:TLS_port
220 Connected
USER paranoid_user
530 Use secure access.
Connection failed

Used proxy type is 6 (OPEN ftp-host:ftp-port) with login information.
Instead of sending the USER/PASS information after the proxy login, it should obviously
switch to TLS mode first (SSL -> Auth TLS option is checked in the site configuration).
Additionally it would be nice to see an option to make the connection to the proxy already
via SSL/TLS (SSL proxy).

This was tested with latest FlashFXP available from the homepage.

[bigstar]

Do you happen to know of a windows based proxy that supports the "OPEN <site>" method? All the ones I have do not use this method. I'm going to need a proxy to test with.

[wuzz]

here is a little freeware proxy that supports the OPEN ftp-host:ftp-port type.
it's without authentication, but that doesn't matter since the SSL/TLS negotiation
isn't done in this case too.

Connecting to TLS_site via Proxy
Connected to Proxy localhost Port 21
220 FTP AnalogX Proxy 4.12 (Release) ready
OPEN TLS_site:TLS_port
220 Connected
USER paranoid_user
530 Use secure access.
Connection failed

url: http://www.analogx.com/contents/download/network/proxy.htm
direct download: http://www.analogx.com/files/proxyi.exe

[bigstar]

Ok thanks, Using this proxy software I have corrected the SSL bug.