92 lines
3.1 KiB
TypeScript
92 lines
3.1 KiB
TypeScript
import { get } from "@vercel/edge-config";
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import { collectEvents } from "next-collect/server";
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import { NextMiddleware, NextResponse, userAgent } from "next/server";
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import { CONSOLE_URL, WEBAPP_URL, WEBSITE_URL } from "@calcom/lib/constants";
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import { isIpInBanlist } from "@calcom/lib/getIP";
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import { extendEventData, nextCollectBasicSettings } from "@calcom/lib/telemetry";
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const middleware: NextMiddleware = async (req) => {
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const url = req.nextUrl;
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if (!url.pathname.startsWith("/api")) {
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//
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// NOTE: When tRPC hits an error a 500 is returned, when this is received
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// by the application the user is automatically redirected to /auth/login.
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//
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// - For this reason our matchers are sufficient for an app-wide maintenance page.
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//
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try {
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// Check whether the maintenance page should be shown
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const isInMaintenanceMode = await get<boolean>("isInMaintenanceMode");
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// If is in maintenance mode, point the url pathname to the maintenance page
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if (isInMaintenanceMode) {
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req.nextUrl.pathname = `/maintenance`;
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return NextResponse.rewrite(req.nextUrl);
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}
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} catch (error) {
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// show the default page if EDGE_CONFIG env var is missing,
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// but log the error to the console
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// console.error(error);
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}
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}
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if (["/api/collect-events", "/api/auth"].some((p) => url.pathname.startsWith(p))) {
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const callbackUrl = url.searchParams.get("callbackUrl");
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const { isBot } = userAgent(req);
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if (
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isBot ||
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(callbackUrl && ![CONSOLE_URL, WEBAPP_URL, WEBSITE_URL].some((u) => callbackUrl.startsWith(u))) ||
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isIpInBanlist(req)
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) {
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// DDOS Prevention: Immediately end request with no response - Avoids a redirect as well initiated by NextAuth on invalid callback
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req.nextUrl.pathname = "/api/nope";
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return NextResponse.redirect(req.nextUrl);
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}
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}
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// Ensure that embed query param is there in when /embed is added.
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// query param is the way in which client side code knows that it is in embed mode.
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if (url.pathname.endsWith("/embed") && typeof url.searchParams.get("embed") !== "string") {
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url.searchParams.set("embed", "");
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return NextResponse.redirect(url);
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}
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// Don't 404 old routing_forms links
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if (url.pathname.startsWith("/apps/routing_forms")) {
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url.pathname = url.pathname.replace("/apps/routing_forms", "/apps/routing-forms");
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return NextResponse.rewrite(url);
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}
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if (url.pathname.startsWith("/auth/login")) {
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const moreHeaders = new Headers(req.headers);
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// Use this header to actually enforce CSP, otherwise it is running in Report Only mode on all pages.
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moreHeaders.set("x-csp-enforce", "true");
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return NextResponse.next({
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request: {
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headers: moreHeaders,
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},
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});
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}
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return NextResponse.next();
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};
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export const config = {
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matcher: [
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"/api/collect-events/:path*",
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"/api/auth/:path*",
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"/apps/routing_forms/:path*",
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"/:path*/embed",
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"/auth/login",
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],
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};
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export default collectEvents({
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middleware,
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...nextCollectBasicSettings,
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cookieName: "__clnds",
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extend: extendEventData,
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});
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