nodeCookies.ts

// Copied from https://github.com/research-software-directory/RSD-as-a-service/blob/main/frontend/components/cookies/nodeCookies.ts

import { IncomingMessage } from 'http'
import cookie from 'cookie'

export type Matomo = {
  id: string | null
  consent: boolean | null
}

/**
 * Extract Matomo cookies
 * Available only on the server side, using plain Node request
 * @param req
 * @returns Session
 */
export function getMatomoCookies (req: IncomingMessage) {
    // check for cookies
    if (req?.headers?.cookie) {
    // parse cookies from node request
        const cookies = cookie.parse(req.headers.cookie)
        // validate and decode
        return {
            mtm_consent: cookies?.mtm_consent,
            mtm_consent_removed: cookies?.mtm_consent_removed
        }
    } else {
        return {
            mtm_consent: undefined,
            mtm_consent_removed: undefined
        }
    }
}

/**
 * Extract matomo consent based on cookies
 * Available only on the server side, using plain Node request
 * @param req
 * @returns Session
 */
export function getMatomoConsent (req:IncomingMessage) {
    // check for cookies
    // console.log('getMatomoConsent...', req)
    if (req?.headers?.cookie) {
        const matomo = getMatomoCookies(req)
        if (matomo?.mtm_consent) {
            return {
                matomoConsent: true
            }
        } else if (matomo?.mtm_consent_removed) {
            return {
                matomoConsent: false
            }
        }
    }
    return {
        matomoConsent: null
    }
}