Connecting to a venue via a HTTP/Connect proxy.

[chrismmilburn]

Hi,
We are trying to connect quickfixj to a venue via a http/connect based proxy.
This link worked fine using SOCKS and a curl command also connects through to the client with http/connect without problem

In the log Im seeing this error, it looks very similar to previous support mails, I believe from reading them that the first 407 is expected but it should then try to authenticate with the username/pwd?

Does quickfixj support HTTP/CONNECT and if so which version ?
Is it possible to turn on logging in the Apache mina component as well ?
Thanks,
Chris

2026-02-03 11:58:43.156 [main] INFO quickfix.mina.ProtocolFactory: Creating proxy request: type = HTTP user = GFFSRVCD pwd = (thepassword)
2026-02-03 11:58:43.161 [main] INFO quickfix.ThreadedSocketInitiator: SessionTimer started
2026-02-03 11:58:43.177 [main] INFO com.baml.gffrepoet.quickfixj.QuickFIXJClient: Started QuickFIXJClient in 3.511 seconds (JVM running for 7.342)
2026-02-03 11:58:43.317 [NioProcessor-2] ERROR quickfix.mina.initiator.InitiatorIoHandler: Socket (appproxy.emea.bank.com/165.34.124.114:8080): org.apache.mina.proxy.ProxyAuthException: Received error response code (407 authenticationrequired).
org.apache.mina.proxy.ProxyAuthException: Received error response code (407 authenticationrequired).
at org.apache.mina.proxy.handlers.http.basic.HttpNoAuthLogicHandler.handleResponse(HttpNoAuthLogicHandler.java:70)
at org.apache.mina.proxy.handlers.http.HttpSmartProxyHandler.handleResponse(HttpSmartProxyHandler.java:206)
at org.apache.mina.proxy.handlers.http.AbstractHttpLogicHandler.messageReceived(AbstractHttpLogicHandler.java:268)
at org.apache.mina.proxy.filter.ProxyFilter.messageReceived(ProxyFilter.java:168)
.

[chrjohn]

Which QFJ version are you using?
I only found these which might be related: #631 and #295

[chrismmilburn]

Initially we were using qfj 2.3.2 which just repeatedly displayed the message : -
'Pending connection not established after ...'
I recently downloaded and built 3.0.0-SNAPSHOT and this gives the 407 authentication required error.
#631 may be a solution though I see the PR is still open?
#295 is also very similar to the problem we see but I can see it was merged in back in 2020 so we should have that fix already.

[chrjohn]

OK, then it would be really cool if you could merge #631 into your local 3.0.0-SNAPSHOT branch and test if it is working. As you can see on that issue, I could not verify it personally.

[chrismmilburn]

Ive pulled the change into my local 3.0.0-SNAPSHOT and its working now!

[chrjohn]

Great, thanks for the test. Are you using NTLM or basic authentication? I'm not quite sure about that part about the NTLM/Basic stuff in there...

[chrismmilburn]

This was just basic authentication.