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