77 lines
2.2 KiB
TypeScript
77 lines
2.2 KiB
TypeScript
import { AuthenticationException } from '@adonisjs/auth/build/standalone'
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import type { GuardsList } from '@ioc:Adonis/Addons/Auth'
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import type { HttpContextContract } from '@ioc:Adonis/Core/HttpContext'
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/**
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* Auth middleware is meant to restrict un-authenticated access to a given route
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* or a group of routes.
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*
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* You must register this middleware inside `start/kernel.ts` file under the list
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* of named middleware.
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*/
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export default class AuthMiddleware {
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/**
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* The URL to redirect to when request is Unauthorized
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*/
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protected redirectTo = '/login'
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/**
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* Authenticates the current HTTP request against a custom set of defined
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* guards.
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*
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* The authentication loop stops as soon as the user is authenticated using any
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* of the mentioned guards and that guard will be used by the rest of the code
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* during the current request.
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*/
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protected async authenticate(auth: HttpContextContract['auth'], guards: (keyof GuardsList)[]) {
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/**
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* Hold reference to the guard last attempted within the for loop. We pass
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* the reference of the guard to the "AuthenticationException", so that
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* it can decide the correct response behavior based upon the guard
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* driver
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*/
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let guardLastAttempted: string | undefined
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for (let guard of guards) {
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guardLastAttempted = guard
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if (await auth.use(guard).check()) {
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/**
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* Instruct auth to use the given guard as the default guard for
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* the rest of the request, since the user authenticated
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* succeeded here
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*/
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auth.defaultGuard = guard
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return true
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}
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}
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/**
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* Unable to authenticate using any guard
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*/
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throw new AuthenticationException(
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'Unauthorized access',
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'E_UNAUTHORIZED_ACCESS',
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guardLastAttempted,
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this.redirectTo,
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)
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}
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/**
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* Handle request
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*/
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public async handle (
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{ auth }: HttpContextContract,
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next: () => Promise<void>,
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customGuards: (keyof GuardsList)[]
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) {
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/**
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* Uses the user defined guards or the default guard mentioned in
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* the config file
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*/
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const guards = customGuards.length ? customGuards : [auth.name]
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await this.authenticate(auth, guards)
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await next()
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}
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}
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