How to solve noVNC serververification event fired?

Question

I'm try to implement the noVNC APIs to create a custom element to handle the noVNC frames on canvas. When i'm calling new RBF() Object to start the noVNC connection

 // javascript
 this.rbf = new RFB(screen, this.url.href)

 //  fired when the server identity must be confirmed by the user.
 this.rbf.addEventListener(
    'serververification', (event) => {
        console.log('@SERVER-VERIFICATION >> ', event.type)
    }
)

# bash code to run websockify
websockify -v 8888 192.168.1.11:5900

I get the event serververification event with field isTrusted: false. The only info I've found about, it's the sentence in official doc about this event fired when the server identity must be confirmed by the user .... but how i can solve and establish the connection without raise this event ?

Answer 1

Actually solved digging in the vnc.html > ui.js code in noVNC github.com here the link:

https://github.com/novnc/noVNC/blob/master/app/ui.js

So in the case of RealVNC server, as in the code example i've handled the serverification event just to console the RSA fingerprint received:

 this.rbf.addEventListener('serververification', await this.serverVerify.bind(this))

 // function used as in the noVNC code
 async serverVerify(e) {
    
    const type = e.detail.type
    if (type === 'RSA') {
        const publickey = e.detail.publickey
        let fingerprint = await window.crypto.subtle.digest("SHA-1", publickey)
        // The same fingerprint format as RealVNC
        fingerprint = Array.from(new Uint8Array(fingerprint).slice(0, 8)).map(
            x => x.toString(16).padStart(2, '0')).join('-')

        console.log('@noVNC FINGERPRINT >> ', fingerprint)

        // here to command for approve the server
        this.rbf.approveServer()    
    }
}