Secure websocket goes timeout during handshake

PayanAx · wrote on 13 May 2017, 14:22

Hi,

I'm creating a secure websocket for my webchannel and access it from my navigator (wss://localhost:12345).
This work fine on my computer.

However, when I put the same excutable (with dlls, certificats, etc) on a production machine, I get a timout on the handshake.
Nothing is different.

The network card information are:
Intel(R) Dual Band Wireless-AC 3165
Intel(R) Ethernet Connection I219-V

Do you know how to solve this ?

Thanks in advance

SGaist · wrote on 13 May 2017, 22:26

Hi,

Might be a silly question but did you check that you also deployed the OpenSSL libraries ?

luca · wrote on 15 May 2017, 06:47

What OS are you using?
I had similar problem on OSX with the websocket Qt example.
When I started the application running from a mounted pendrive it seems it couldn't connect using SSL.
When I moved the application in the main partition the problem disappeared.

PayanAx · wrote on 19 May 2017, 08:39

I'm using windows 10. And the application doesn't crash.

I will take a look at OpenSSL librairies but since I use windeployqt it should be fine.

PayanAx · wrote on 19 May 2017, 08:48

You're right, I don't see any dll from OpenSSl.
Should I install a specific version on the computer or just add some librairies to my app directory ?

SGaist · wrote on 19 May 2017, 19:44

You should get an OpenSSL build that matches your compiler.

Current (as in we are the 19.05.2017) constraint: use a version smaller than 1.1. OpenSSL 1.1 breaks the API. There's currently a new backend in preparation for Qt to accommodate the new API.

PayanAx · wrote on 8 Jun 2017, 18:19

I tried to install OpenSSl for windows 1.0.2 from https://slproweb.com/products/Win32OpenSSL.html
But this didn't work neither.
I tried to change environment variable and stuff but I still get the same error.

SGaist · wrote on 8 Jun 2017, 21:49

Which architecture are you building your application for ?
Which compiler are you using ?
Was your installed OpenSSL built with the same compiler as Qt ?

PayanAx · wrote on 9 Jun 2017, 16:53

I'm building for X64 architecture with msvc2015 (Qt 5.8).
The version of OpenSSL is for x64 too.

SGaist · wrote on 9 Jun 2017, 20:28

Since 5.9 is now out, did you test with it to see if it's still happening ?

PayanAx · wrote on 10 Jun 2017, 06:29

Doesn't work neither in 5.9.
I deactivated the firewall (just in case) but not result neither.
The thing is, I cannot debug it on that machine because QtCreator experience a bug on this device (raison unknown).

SGaist · wrote on 10 Jun 2017, 19:43

What are the symptoms of that bug ?

PayanAx · wrote on 11 Jun 2017, 09:46

The bug with Qt Creator?
When the editor open a project, it get stuck in an infinite loop while trying to parse the project file (.pro).

SGaist · wrote on 11 Jun 2017, 21:08

Is it happening with 4.3 ?

PayanAx · wrote on 13 Jun 2017, 17:35

I tried with 4.3 now.
It open the project successfully.
But I don't get any error or message in the console.
I put a breakpoint in the new connection handler but is never triggered.

The connection might be blocked before the get to the application.
I tried open the port on the in-coming and out-coming rules of the firewall, I've even tried to deactivate but it doesn't solve the problem.
Something is blocking the connection without creating any error but I don't know what.