113 lines
3.1 KiB
TypeScript
113 lines
3.1 KiB
TypeScript
import { NextRequest, NextResponse } from "next/server"
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import { AuthError } from "next-auth"
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import { Lang } from "@/constants/languages"
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import { env } from "@/env/server"
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import { badRequest } from "@/server/errors/next"
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import { signIn } from "@/auth"
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export async function GET(
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request: NextRequest,
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context: { params: { lang: Lang } }
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) {
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let redirectHeaders: Headers | undefined = undefined
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let redirectTo: string
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const returnUrl = request.headers.get("x-returnurl")
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if (returnUrl) {
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// Seamless login request from Current web
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redirectTo = returnUrl
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} else {
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// Normal login request from New web
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redirectTo =
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request.cookies.get("redirectTo")?.value || // Cookie gets set by authRequired middleware
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request.headers.get("x-redirect-to") ||
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request.nextUrl.searchParams.get("redirectTo") ||
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request.headers.get("Referer") ||
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""
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// If above fails, always redirect to startpage
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if (!redirectTo) {
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const proto = request.headers.get("x-forwarded-proto") ?? "http"
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const host =
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request.headers.get("x-forwarded-host") ??
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request.headers.get("host") ??
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env.URL
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redirectTo = `${proto}://${host}/`
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}
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// Clean up cookie from authRequired middleware
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redirectHeaders = new Headers()
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redirectHeaders.append(
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"set-cookie",
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"redirectTo=; Expires=Thu, 01 Jan 1970 00:00:00 UTC; Path=/; HttpOnly; SameSite=Lax"
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)
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try {
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// Initiate the seamless login flow
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let redirectUrlValue
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switch (context.params.lang) {
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case Lang.da:
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redirectUrlValue = env.SEAMLESS_LOGIN_DA
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break
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case Lang.de:
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redirectUrlValue = env.SEAMLESS_LOGIN_DE
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break
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case Lang.en:
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redirectUrlValue = env.SEAMLESS_LOGIN_EN
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break
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case Lang.fi:
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redirectUrlValue = env.SEAMLESS_LOGIN_FI
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break
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case Lang.no:
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redirectUrlValue = env.SEAMLESS_LOGIN_NO
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break
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case Lang.sv:
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redirectUrlValue = env.SEAMLESS_LOGIN_SV
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break
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}
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const redirectUrl = new URL(redirectUrlValue)
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redirectUrl.searchParams.set("returnurl", redirectTo)
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redirectTo = redirectUrl.toString()
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} catch (e) {
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console.error(
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"Unable to create URL for seamless login, proceeding without it."
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)
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console.error(e)
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}
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}
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try {
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/**
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* Passing `redirect: false` to `signIn` will return the URL instead of
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* automatically redirecting to it inside of `signIn`.
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* https://github.com/nextauthjs/next-auth/blob/3c035ec/packages/next-auth/src/lib/actions.ts#L76
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*/
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const redirectUrl = await signIn(
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"curity",
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{
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redirectTo,
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redirect: false,
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},
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{
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ui_locales: context.params.lang,
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}
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)
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if (redirectUrl) {
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return NextResponse.redirect(redirectUrl, {
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headers: redirectHeaders,
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})
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}
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} catch (error) {
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if (error instanceof AuthError) {
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console.log({ signInAuthError: error })
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} else {
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console.log({ signInError: error })
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}
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}
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return badRequest()
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}
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