next
Version:
The React Framework
135 lines (134 loc) • 4.97 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.getCookieParser = getCookieParser;
exports.sendStatusCode = sendStatusCode;
exports.redirect = redirect;
exports.checkIsManualRevalidate = checkIsManualRevalidate;
exports.clearPreviewData = clearPreviewData;
exports.sendError = sendError;
exports.setLazyProp = setLazyProp;
exports.SYMBOL_CLEARED_COOKIES = exports.SYMBOL_PREVIEW_DATA = exports.RESPONSE_LIMIT_DEFAULT = exports.COOKIE_NAME_PRERENDER_DATA = exports.COOKIE_NAME_PRERENDER_BYPASS = exports.PRERENDER_REVALIDATE_HEADER = void 0;
function getCookieParser(headers) {
return function parseCookie() {
const header = headers.cookie;
if (!header) {
return {};
}
const { parse: parseCookieFn } = require('next/dist/compiled/cookie');
return parseCookieFn(Array.isArray(header) ? header.join(';') : header);
};
}
function sendStatusCode(res, statusCode) {
res.statusCode = statusCode;
return res;
}
function redirect(res, statusOrUrl, url) {
if (typeof statusOrUrl === 'string') {
url = statusOrUrl;
statusOrUrl = 307;
}
if (typeof statusOrUrl !== 'number' || typeof url !== 'string') {
throw new Error(`Invalid redirect arguments. Please use a single argument URL, e.g. res.redirect('/destination') or use a status code and URL, e.g. res.redirect(307, '/destination').`);
}
res.writeHead(statusOrUrl, {
Location: url
});
res.write(url);
res.end();
return res;
}
const PRERENDER_REVALIDATE_HEADER = 'x-prerender-revalidate';
exports.PRERENDER_REVALIDATE_HEADER = PRERENDER_REVALIDATE_HEADER;
function checkIsManualRevalidate(req, previewProps) {
return req.headers[PRERENDER_REVALIDATE_HEADER] === previewProps.previewModeId;
}
const COOKIE_NAME_PRERENDER_BYPASS = `__prerender_bypass`;
exports.COOKIE_NAME_PRERENDER_BYPASS = COOKIE_NAME_PRERENDER_BYPASS;
const COOKIE_NAME_PRERENDER_DATA = `__next_preview_data`;
exports.COOKIE_NAME_PRERENDER_DATA = COOKIE_NAME_PRERENDER_DATA;
const RESPONSE_LIMIT_DEFAULT = 4 * 1024 * 1024;
exports.RESPONSE_LIMIT_DEFAULT = RESPONSE_LIMIT_DEFAULT;
const SYMBOL_PREVIEW_DATA = Symbol(COOKIE_NAME_PRERENDER_DATA);
exports.SYMBOL_PREVIEW_DATA = SYMBOL_PREVIEW_DATA;
const SYMBOL_CLEARED_COOKIES = Symbol(COOKIE_NAME_PRERENDER_BYPASS);
exports.SYMBOL_CLEARED_COOKIES = SYMBOL_CLEARED_COOKIES;
function clearPreviewData(res) {
if (SYMBOL_CLEARED_COOKIES in res) {
return res;
}
const { serialize } = require('next/dist/compiled/cookie');
const previous = res.getHeader('Set-Cookie');
res.setHeader(`Set-Cookie`, [
...typeof previous === 'string' ? [
previous
] : Array.isArray(previous) ? previous : [],
serialize(COOKIE_NAME_PRERENDER_BYPASS, '', {
// To delete a cookie, set `expires` to a date in the past:
// https://tools.ietf.org/html/rfc6265#section-4.1.1
// `Max-Age: 0` is not valid, thus ignored, and the cookie is persisted.
expires: new Date(0),
httpOnly: true,
sameSite: process.env.NODE_ENV !== 'development' ? 'none' : 'lax',
secure: process.env.NODE_ENV !== 'development',
path: '/'
}),
serialize(COOKIE_NAME_PRERENDER_DATA, '', {
// To delete a cookie, set `expires` to a date in the past:
// https://tools.ietf.org/html/rfc6265#section-4.1.1
// `Max-Age: 0` is not valid, thus ignored, and the cookie is persisted.
expires: new Date(0),
httpOnly: true,
sameSite: process.env.NODE_ENV !== 'development' ? 'none' : 'lax',
secure: process.env.NODE_ENV !== 'development',
path: '/'
}),
]);
Object.defineProperty(res, SYMBOL_CLEARED_COOKIES, {
value: true,
enumerable: false
});
return res;
}
class ApiError extends Error {
constructor(statusCode, message){
super(message);
this.statusCode = statusCode;
}
}
exports.ApiError = ApiError;
function sendError(res, statusCode, message) {
res.statusCode = statusCode;
res.statusMessage = message;
res.end(message);
}
function setLazyProp({ req }, prop, getter) {
const opts = {
configurable: true,
enumerable: true
};
const optsReset = {
...opts,
writable: true
};
Object.defineProperty(req, prop, {
...opts,
get: ()=>{
const value = getter();
// we set the property on the object to avoid recalculating it
Object.defineProperty(req, prop, {
...optsReset,
value
});
return value;
},
set: (value)=>{
Object.defineProperty(req, prop, {
...optsReset,
value
});
}
});
}
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