[BUG] Invalid endpoint, check that server has security policy

[krgrsebastian]

I am getting an "Invalid endpoint, check that server has security policy" error in my OPC/UA Client.
This is the error code im getting:

msg : string[108]
"OpcUaClientNode: Case A: Endpoint does not contain, 1==None 2==Sign 3==Sign&Encrypt, using securityMode: [1]"
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[98]
"OpcUaClientNode:         using securityPolicy: ["http://opcfoundation.org/UA/SecurityPolicy#None"]"
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[155]
"OpcUaClientNode: Case B: UserName & password does not match to server (needed by Sign or SignAndEncrypt), check username: undefined and password: undefined"
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[71]
"OpcUaClientNode: Case C: With Sign you cannot use SecurityPolicy None!!"
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[46]
"OpcUaClientNode: Invalid endpoint parameters: "
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[483]
"Client node error on:  error: ["Wrong endpoint parameters: {\"id\":\"b14a777a32dafbc5\",\"type\":\"OpcUa-Endpoint\",\"_closeCallbacks\":[],\"_inputCallback\":null,\"_inputCallbacks\":null,\"wires\":[],\"_wireCount\":0,\"credentials\":{},\"endpoint\":\"opc.tcp://tulip.telekomcloud.umh.app:46010\",\"securityPolicy\":\"None\",\"securityMode\":\"None\",\"login\":false,\"none\":true,\"usercert\":false,\"userCertificate\":\"\",\"userPrivatekey\":\"\",\"user\":null,\"password\":null}"]"
11.8.2023, 13:10:01[node: 960582b0365d8a4e](http://80.158.37.162:1880/nodered/#)
msg : string[16]
"Invalid endpoint"

It worked just fine in version 0.2.309 and since i used the version 0.2.310 i am getting this error.
I also tried to connect with UA-Expert and it worked just fine.
Here is a guide to replecate this issue: https://learn.umh.app/course/creating-a-node-red-flow-with-simulated-opc-ua-data/

I also figured out, that the only changes to version 0.2.310 was the version change form node-opcua. Maybe that is the reason.

#582 (comment)_

[mikakaraila]

Please try to get debug log for @erossignon
I have seen some other cases and I expect some servers have some timing problem after code refactoring.
First time connection seems to fail for this reason.

[mikakaraila]

Please test with v0.2.311

[krgrsebastian]

I tried with v.0.2.311 and still getting the same error :(

Here is the complete log:
united-manufacturing-hub-nodered-0.log

[mikakaraila]

Thanks, it shows two interesting lines:
08:09:54.240Z :client_base_impl :582 Creating default certificate ... please wait
Client connect error: The expression evaluated to a falsy value:

(0, assert_1.default)(s.length <= maxLength)

This seems to be assert inside node-opcua-crypto package:

[mikakaraila]

I will need help from @erossignon to check why it will fail...

[mikakaraila]

I got email from Etienne and this is fixed to coming new version of node-opcua-crypto

[krgrsebastian]

thx for your help!

[mikakaraila]

See also: node-opcua/node-opcua#1289

[mikakaraila]

I haven´t yet found solution for this, I will need help from @erossignon .

[mikakaraila]

Please re-test with new just published version.

[simarsamra]

Hi
I am facing this strange issue with node-red-contrib-opcua node Client.
I have three OpcUa servers on my network. They all have the same configuration.
Using UaExpert, I can connect to all these servers without any issues.
But when I use node-red Opc Ua Client to connect out of three it only works with one server. For the remaining two servers I get an Invalid Endpoint error. The Endpoint node properties are set to exactly the same as in UaExpert. I searched the internet for the solution but could not find a fix.
Please take a look at the picture below.
Thank you in advance.

[mikakaraila]

Have you trusted client certificate on those two not working servers?

[mikakaraila]

Did you test this again. Making cleanup, closing this one. Reopen if not working.

[krgrsebastian]

Sorry for the late reply had to write some exams. it works now thanks for your effort :)

[luiscortesfdz]

@krgrsebastian how did you solve it?

I'm facing the same problem
With UA Expert it works perfect but with client nodered it doesn't work