Rocket.chat.electron: 3.0 Client cannot connect to Internal server with Self-signed certificate

[TaLoN1x]

My Setup

• Operating System: Mac Os X 10.15
• App Version: 3.0.0
• Installation type: Brew, Manual install
  
• [x] I have tested with the latest version
• [x] I can simulate the issue easily

Description

When trying to connect to an internal server, that is using certificate issued from Internal PKI (and trusted by endpoint), the login to service cannot succeed.

Current Behavior

Client tells "No valud server found at the URL"

Trying to start application from terminal shows following error:
[bugsnag] Loaded! SyntaxError: Unexpected token o in JSON at position 1 at JSON.parse (<anonymous>) at /Applications/Rocket.Chat.app/Contents/Resources/app.asar/app/main.js:1344:42 at Generator.next (<anonymous>) at /Applications/Rocket.Chat.app/Contents/Resources/app.asar/node_modules/tslib/tslib.js:114:75 at new Promise (<anonymous>) at Object.__awaiter (/Applications/Rocket.Chat.app/Contents/Resources/app.asar/node_modules/tslib/tslib.js:110:16) at setupServers (/Applications/Rocket.Chat.app/Contents/Resources/app.asar/app/main.js:1280:46) at /Applications/Rocket.Chat.app/Contents/Resources/app.asar/app/main.js:3225:11 at Generator.next (<anonymous>) at fulfilled (/Applications/Rocket.Chat.app/Contents/Resources/app.asar/node_modules/tslib/tslib.js:111:62) Checking for update Update for version 3.0.0 is not available (latest version: 3.0.0, downgrade is disallowed). [bugsnag] Event failed to send… Error: self signed certificate in certificate chain at TLSSocket.onConnectSecure (_tls_wrap.js:1484:34) at TLSSocket.emit (events.js:310:20) at TLSSocket.EventEmitter.emit (domain.js:482:12) at TLSSocket._finishInit (_tls_wrap.js:927:8) at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:697:12) Error: self signed certificate in certificate chain at TLSSocket.onConnectSecure (_tls_wrap.js:1484:34) at TLSSocket.emit (events.js:310:20) at TLSSocket.EventEmitter.emit (domain.js:482:12) at TLSSocket._finishInit (_tls_wrap.js:927:8) at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:697:12) { code: 'SELF_SIGNED_CERT_IN_CHAIN' } [bugsnag] Failed to send event to Bugsnag [bugsnag] Unhandled rejection… TypeError: Error processing argument at index 0, conversion failure from at BrowserWindow.setBounds (electron/js2c/browser_init.js:29:405) at applyRootWindowState (/Applications/Rocket.Chat.app/Contents/Resources/app.asar/app/main.js:760:20) at /Applications/Rocket.Chat.app/Contents/Resources/app.asar/app/main.js:3241:5 at Generator.next (<anonymous>) at fulfilled (/Applications/Rocket.Chat.app/Contents/Resources/app.asar/node_modules/tslib/tslib.js:111:62) at processTicksAndRejections (internal/process/task_queues.js:97:5)

Expected Behavior

Would be greate to get logged in :)

[TaLoN1x]

P.S. if I offload certificate locally via the proxy and connect with HTTP, it works. Seems like issue with ignoring endpoint trust certificate setting and not having an option to feed custom certificate chain.

[TaLoN1x]

Can confirm simmilar behaivor on Windows

[berndlackinger]

same for me

[trickvi]

I can confirm same for Ubuntu (snap)

[Vkat14]

Can confirm this. Had to downgrade to login

[TheWrongGuy]

Can confirm this, too. Manually entering the server using 3.0.0 & 3.0.1 does not work. Preconfiguring with servers.json works fine.

[TheDigitalEagle]

Figured out a temp work around here https://github.com/RocketChat/Rocket.Chat.Electron/issues/1764#issuecomment-702993532

[tassoevan]

I've found the cause: node-fetch was used to connect to the server instead of Electron's net API, therefore certificate-error and select-client-certificate events are not emitted. I'm working on it now, please wait.

[tassoevan]

~Electron is a joke.~ net.request does not raise any certificate-error event at all. To perform a request, I have to run it in a renderer process, so the fix is taking a little longer.

[TheDigitalEagle]

When I've worked with CEF, it took good effort to wrap and implement SSL event handling. It's possible Electron hasn't gone far into handle that part of Chromium.