cbp-lib/src/session/SessionMonitor.js

Libraries for cbp

'use strict' 

import {SessionIFrame} from './SessionIFrame'
import {Log} from '../_helpers/Log'
import { Validation } from '../_helpers/custom-error';

export class SessionMonitor {
    constructor(authenticationOidc, SessionIFrameCtor = SessionIFrame) {
        if (!authenticationOidc) {
            Log.error("SessionMonitor: No authenticationoidc passed to SessionMonitor");
            throw new Error("AuthenticationOidc Required");
        }

        this._authenticationOidc = authenticationOidc 
        this._metaData = this._authenticationOidc.options
        this._SessionIFrameCtor = SessionIFrameCtor

        this._authenticationOidc.querySessionState()
        .then(session_state => {
            if (!Validation.isEmpty(session_state)) {
               this._start(session_state)
            }
        })
        .catch(error => {
            Log.error("SessionMonitor: " + error)
        })
    }

    _start(session_state) {
        if (session_state) {
            if (!this._sessionIFrame) {
                if (this._metaData.check_session_iframe &&
                    !Validation.isEmpty(this._metaData.check_session_iframe)) {
                        Log.debug("SessionMonitor.start: Initializing sessionIframe...")
    
                        this._sessionIFrame = new this._SessionIFrameCtor(this.callback.bind(this), this._metaData)
                        this._sessionIFrame.load().then(() => {
                            this._sessionIFrame.start(session_state)
                        })
                }
                else {
                    Log.warn('SessionMonitor: No check_session_iframe define in the options')
                }
            }
            else {
                Log.debug("SessionMonitor.start SessionIFrame is intantiated.")
                this._sessionIFrame.start(session_state)
            }
        }
    }

    callback(data) {
        Log.debug("SessionMonitor.callback: Callback function called")
        this._authenticationOidc.event._signOutEvent(data)
    }
}