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const AuthResponseSent = require('../errors/auth-response-sent')
class LoginConsentRequest {
constructor (options) {
this.opAuthRequest = options.opAuthRequest
this.params = options.params
this.response = options.response
}
/**
* @param opAuthRequest {OPAuthenticationRequest}
* @param skipConsent {boolean}
*
* @return {Promise<OPAuthenticationRequest>}
*/
static handle (opAuthRequest, skipConsent = false) {
const notLoggedIn = !opAuthRequest.subject
if (notLoggedIn) {
return Promise.resolve(opAuthRequest) // pass through
}
const consentRequest = LoginConsentRequest.from(opAuthRequest)
if (skipConsent) {
consentRequest.markConsentSuccess(opAuthRequest)
return Promise.resolve(opAuthRequest) // pass through
}
return LoginConsentRequest.obtainConsent(consentRequest)
}
/**
* @param opAuthRequest {OPAuthenticationRequest}
*
* @return {LoginConsentRequest}
*/
static from (opAuthRequest) {
const params = LoginConsentRequest.extractParams(opAuthRequest)
const options = {
opAuthRequest,
params,
response: opAuthRequest.res
}
return new LoginConsentRequest(options)
}
static extractParams (opAuthRequest) {
const req = opAuthRequest.req
const query = req.query || {}
const body = req.body || {}
const params = query.client_id ? query : body
return params
}
/**
* @param consentRequest {LoginConsentRequest}
*
* @return {Promise<OPAuthenticationRequest>}
*/
static obtainConsent (consentRequest) {
const { opAuthRequest, clientId } = consentRequest
const parsedAppOrigin = new URL(consentRequest.opAuthRequest.params.redirect_uri)
const appOrigin = parsedAppOrigin.origin
// Consent for the local RP client (the home pod) is implied
Iif (consentRequest.isLocalRpClient(appOrigin)) {
return Promise.resolve()
.then(() => { consentRequest.markConsentSuccess(opAuthRequest) })
.then(() => opAuthRequest)
}
// Check if user has submitted this from a Consent page
if (consentRequest.hasAlreadyConsented(appOrigin)) {
return consentRequest.saveConsentForClient(clientId)
.then(() => { consentRequest.markConsentSuccess(opAuthRequest) })
.then(() => opAuthRequest)
}
// Otherwise, need to obtain explicit consent from the user via UI
return consentRequest.checkSavedConsentFor(clientId)
.then(priorConsent => {
if (priorConsent) {
consentRequest.markConsentSuccess(opAuthRequest)
} else {
consentRequest.redirectToConsent()
}
})
.then(() => opAuthRequest)
}
/**
* @return {string}
*/
get clientId () {
return this.params.client_id
}
isLocalRpClient (appOrigin) {
return this.opAuthRequest.req.app.locals.ldp.serverUri === appOrigin
}
hasAlreadyConsented (appOrigin) {
return this.opAuthRequest.req.session.consentedOrigins &&
this.opAuthRequest.req.session.consentedOrigins.includes(appOrigin)
}
checkSavedConsentFor (opAuthRequest) {
return Promise.resolve(false)
}
markConsentSuccess (opAuthRequest) {
opAuthRequest.consent = true
opAuthRequest.scope = this.params.scope
}
saveConsentForClient (clientId) {
return Promise.resolve(clientId)
}
redirectToConsent (authRequest) {
const { opAuthRequest } = this
console.log('Redirecting user to /sharing')
console.log(opAuthRequest.host)
const queryString = new URLSearchParams(opAuthRequest.req.query).toString()
const consentUrl = `/sharing${queryString ? '?' + queryString : ''}`
opAuthRequest.subject = null
opAuthRequest.res.redirect(consentUrl)
this.signalResponseSent()
}
signalResponseSent () {
throw new AuthResponseSent('User redirected')
}
}
module.exports = LoginConsentRequest
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