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import { redirect, error } from "@sveltejs/kit"; |
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import { getOIDCUserData, validateAndParseCsrfToken } from "$lib/server/auth"; |
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import { z } from "zod"; |
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import { base } from "$app/paths"; |
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import { updateUser } from "./updateUser"; |
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import { ALLOWED_USER_EMAILS } from "$env/static/private"; |
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import JSON5 from "json5"; |
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const allowedUserEmails = z |
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.array(z.string().email()) |
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.optional() |
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.default([]) |
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.parse(JSON5.parse(ALLOWED_USER_EMAILS)); |
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export async function load({ url, locals, cookies, request, getClientAddress }) { |
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const { error: errorName, error_description: errorDescription } = z |
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.object({ |
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error: z.string().optional(), |
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error_description: z.string().optional(), |
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}) |
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.parse(Object.fromEntries(url.searchParams.entries())); |
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if (errorName) { |
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throw error(400, errorName + (errorDescription ? ": " + errorDescription : "")); |
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} |
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const { code, state } = z |
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.object({ |
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code: z.string(), |
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state: z.string(), |
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}) |
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.parse(Object.fromEntries(url.searchParams.entries())); |
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const csrfToken = Buffer.from(state, "base64").toString("utf-8"); |
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const validatedToken = await validateAndParseCsrfToken(csrfToken, locals.sessionId); |
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if (!validatedToken) { |
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throw error(403, "Invalid or expired CSRF token"); |
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} |
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const { userData } = await getOIDCUserData({ redirectURI: validatedToken.redirectUrl }, code); |
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if (allowedUserEmails.length > 0) { |
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if (!userData.email) { |
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throw error(403, "User not allowed: email not returned"); |
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} |
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const emailVerified = userData.email_verified ?? true; |
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if (!emailVerified) { |
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throw error(403, "User not allowed: email not verified"); |
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} |
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if (!allowedUserEmails.includes(userData.email)) { |
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throw error(403, "User not allowed"); |
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} |
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} |
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await updateUser({ |
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userData, |
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locals, |
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cookies, |
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userAgent: request.headers.get("user-agent") ?? undefined, |
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ip: getClientAddress(), |
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}); |
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throw redirect(302, `${base}/`); |
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} |
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