76 lines
3.3 KiB
TypeScript
76 lines
3.3 KiB
TypeScript
import type { NextPageContext } from "next";
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import type { DocumentContext, DocumentProps } from "next/document";
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import Document, { Head, Html, Main, NextScript } from "next/document";
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import { z } from "zod";
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import { csp } from "@lib/csp";
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type Props = Record<string, unknown> & DocumentProps;
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function setHeader(ctx: NextPageContext, name: string, value: string) {
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try {
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ctx.res?.setHeader(name, value);
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} catch (e) {
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// Getting "Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client" when revalidate calendar chache
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console.log(`Error setting header ${name}=${value} for ${ctx.asPath || "unknown asPath"}`, e);
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}
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}
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class MyDocument extends Document<Props> {
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static async getInitialProps(ctx: DocumentContext) {
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const { nonce } = csp(ctx.req || null, ctx.res || null);
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if (!process.env.CSP_POLICY) {
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setHeader(ctx, "x-csp", "not-opted-in");
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} else if (!ctx.res?.getHeader("x-csp")) {
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// If x-csp not set by gSSP, then it's initialPropsOnly
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setHeader(ctx, "x-csp", "initialPropsOnly");
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}
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const asPath = ctx.asPath || "";
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// Use a dummy URL as default so that URL parsing works for relative URLs as well. We care about searchParams and pathname only
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const parsedUrl = new URL(asPath, "https://dummyurl");
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const isEmbed = parsedUrl.pathname.endsWith("/embed") || parsedUrl.searchParams.get("embedType") !== null;
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const initialProps = await Document.getInitialProps(ctx);
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return { isEmbed, nonce, ...initialProps };
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}
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render() {
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const { locale } = this.props.__NEXT_DATA__;
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const { isEmbed } = this.props;
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const nonceParsed = z.string().safeParse(this.props.nonce);
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const nonce = nonceParsed.success ? nonceParsed.data : "";
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return (
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<Html lang={locale}>
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<Head nonce={nonce}>
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<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png" />
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<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png" />
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<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png" />
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<link rel="manifest" href="/site.webmanifest" />
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<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#000000" />
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<meta name="msapplication-TileColor" content="#ff0000" />
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<meta name="theme-color" media="(prefers-color-scheme: light)" content="#f9fafb" />
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<meta name="theme-color" media="(prefers-color-scheme: dark)" content="#1C1C1C" />
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</Head>
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<body
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className="dark:bg-darkgray-50 desktop-transparent bg-subtle antialiased"
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style={
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isEmbed
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? {
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background: "transparent",
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// Keep the embed hidden till parent initializes and
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// - gives it the appropriate styles if UI instruction is there.
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// - gives iframe the appropriate height(equal to document height) which can only be known after loading the page once in browser.
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// - Tells iframe which mode it should be in (dark/light) - if there is a a UI instruction for that
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visibility: "hidden",
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}
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: {}
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}>
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<Main />
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<NextScript nonce={nonce} />
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</body>
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</Html>
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);
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}
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}
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export default MyDocument;
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