/opt/canhelp/node_modules/next/dist/esm/lib
Edit: /opt/canhelp/node_modules/next/dist/esm/lib/load-custom-routes.js (22190B)
import { bold, yellow } from './picocolors';
import { escapeStringRegexp } from '../shared/lib/escape-regexp';
import { tryToParsePath } from './try-to-parse-path';
import { allowedStatusCodes } from './redirect-status';
import { isFullStringUrl } from './url';
const allowedHasTypes = new Set([
'header',
'cookie',
'query',
'host'
]);
const namedGroupsRegex = /\(\?<([a-zA-Z][a-zA-Z0-9]*)>/g;
export function normalizeRouteRegex(regex) {
// clean up un-necessary escaping from regex.source which turns / into \\/
return regex.replace(/\\\//g, '/');
}
function checkRedirect(route) {
const invalidParts = [];
let hadInvalidStatus = false;
if (route.statusCode && !allowedStatusCodes.has(route['statusCode'])) {
hadInvalidStatus = true;
invalidParts.push(`\`statusCode\` is not undefined or valid statusCode`);
}
if (typeof route.permanent !== 'boolean' && !route['statusCode']) {
invalidParts.push(`\`permanent\` is not set to \`true\` or \`false\``);
}
return {
invalidParts,
hadInvalidStatus
};
}
function checkHeader(route) {
const invalidParts = [];
if (!Array.isArray(route.headers)) {
invalidParts.push('`headers` field must be an array');
} else if (route.headers.length === 0) {
invalidParts.push('`headers` field cannot be empty');
} else {
for (const header of route.headers){
if (!header || typeof header !== 'object') {
invalidParts.push("`headers` items must be object with { key: '', value: '' }");
break;
}
if (typeof header.key !== 'string') {
invalidParts.push('`key` in header item must be string');
break;
}
if (typeof header.value !== 'string') {
invalidParts.push('`value` in header item must be string');
break;
}
}
}
return invalidParts;
}
export function checkCustomRoutes(routes, type) {
if (!Array.isArray(routes)) {
console.error(`Error: ${type}s must return an array, received ${typeof routes}.\n` + `See here for more info: https://nextjs.org/docs/messages/routes-must-be-array`);
process.exit(1);
}
let numInvalidRoutes = 0;
let hadInvalidStatus = false;
let hadInvalidHas = false;
let hadInvalidMissing = false;
const allowedKeys = new Set([
'source',
'locale',
'has',
'missing'
]);
if (type === 'rewrite') {
allowedKeys.add('basePath');
allowedKeys.add('destination');
}
if (type === 'redirect') {
allowedKeys.add('basePath');
allowedKeys.add('statusCode');
allowedKeys.add('permanent');
allowedKeys.add('destination');
}
if (type === 'header') {
allowedKeys.add('basePath');
allowedKeys.add('headers');
}
for (const route of routes){
if (!route || typeof route !== 'object') {
console.error(`The route ${JSON.stringify(route)} is not a valid object with \`source\`${type !== 'middleware' ? ` and \`${type === 'header' ? 'headers' : 'destination'}\`` : ''}`);
numInvalidRoutes++;
continue;
}
if (type === 'rewrite' && route.basePath === false && !(route.destination.startsWith('http://') || route.destination.startsWith('https://'))) {
console.error(`The route ${route.source} rewrites urls outside of the basePath. Please use a destination that starts with \`http://\` or \`https://\` https://nextjs.org/docs/messages/invalid-external-rewrite`);
numInvalidRoutes++;
continue;
}
const keys = Object.keys(route);
const invalidKeys = keys.filter((key)=>!allowedKeys.has(key));
const invalidParts = [];
if ('basePath' in route && typeof route.basePath !== 'undefined' && route.basePath !== false) {
invalidParts.push('`basePath` must be undefined or false');
}
if (typeof route.locale !== 'undefined' && route.locale !== false) {
invalidParts.push('`locale` must be undefined or false');
}
const checkInvalidHasMissing = (items, fieldName)=>{
let hadInvalidItem = false;
if (typeof items !== 'undefined' && !Array.isArray(items)) {
invalidParts.push(`\`${fieldName}\` must be undefined or valid has object`);
hadInvalidItem = true;
} else if (items) {
const invalidHasItems = [];
for (const hasItem of items){
let invalidHasParts = [];
if (!allowedHasTypes.has(hasItem.type)) {
invalidHasParts.push(`invalid type "${hasItem.type}"`);
}
if (typeof hasItem.key !== 'string' && hasItem.type !== 'host') {
invalidHasParts.push(`invalid key "${hasItem.key}"`);
}
if (typeof hasItem.value !== 'undefined' && typeof hasItem.value !== 'string') {
invalidHasParts.push(`invalid value "${hasItem.value}"`);
}
if (typeof hasItem.value === 'undefined' && hasItem.type === 'host') {
invalidHasParts.push(`value is required for "host" type`);
}
if (invalidHasParts.length > 0) {
invalidHasItems.push(`${invalidHasParts.join(', ')} for ${JSON.stringify(hasItem)}`);
}
}
if (invalidHasItems.length > 0) {
hadInvalidItem = true;
const itemStr = `item${invalidHasItems.length === 1 ? '' : 's'}`;
console.error(`Invalid \`${fieldName}\` ${itemStr}:\n` + invalidHasItems.join('\n'));
console.error();
invalidParts.push(`invalid \`${fieldName}\` ${itemStr} found`);
}
}
return hadInvalidItem;
};
if (checkInvalidHasMissing(route.has, 'has')) {
hadInvalidHas = true;
}
if (checkInvalidHasMissing(route.missing, 'missing')) {
hadInvalidMissing = true;
}
if (!route.source) {
invalidParts.push('`source` is missing');
} else if (typeof route.source !== 'string') {
invalidParts.push('`source` is not a string');
} else if (!route.source.startsWith('/')) {
invalidParts.push('`source` does not start with /');
}
if (type === 'header') {
invalidParts.push(...checkHeader(route));
} else if (type !== 'middleware') {
let _route = route;
if (!_route.destination) {
invalidParts.push('`destination` is missing');
} else if (typeof _route.destination !== 'string') {
invalidParts.push('`destination` is not a string');
} else if (type === 'rewrite' && !_route.destination.match(/^(\/|https:\/\/|http:\/\/)/)) {
invalidParts.push('`destination` does not start with `/`, `http://`, or `https://`');
}
}
if (type === 'redirect') {
const result = checkRedirect(route);
hadInvalidStatus = hadInvalidStatus || result.hadInvalidStatus;
invalidParts.push(...result.invalidParts);
}
let sourceTokens;
if (typeof route.source === 'string' && route.source.startsWith('/')) {
// only show parse error if we didn't already show error
// for not being a string
const { tokens, error, regexStr } = tryToParsePath(route.source);
if (error) {
invalidParts.push('`source` parse failed');
}
if (regexStr && regexStr.length > 4096) {
invalidParts.push('`source` exceeds max built length of 4096');
}
sourceTokens = tokens;
}
const hasSegments = new Set();
if (route.has) {
for (const hasItem of route.has){
if (!hasItem.value && hasItem.key) {
hasSegments.add(hasItem.key);
}
if (hasItem.value) {
for (const match of hasItem.value.matchAll(namedGroupsRegex)){
if (match[1]) {
hasSegments.add(match[1]);
}
}
if (hasItem.type === 'host') {
hasSegments.add('host');
}
}
}
}
// make sure no unnamed patterns are attempted to be used in the
// destination as this can cause confusion and is not allowed
if (typeof route.destination === 'string') {
if (route.destination.startsWith('/') && Array.isArray(sourceTokens)) {
const unnamedInDest = new Set();
for (const token of sourceTokens){
if (typeof token === 'object' && typeof token.name === 'number') {
const unnamedIndex = new RegExp(`:${token.name}(?!\\d)`);
if (route.destination.match(unnamedIndex)) {
unnamedInDest.add(`:${token.name}`);
}
}
}
if (unnamedInDest.size > 0) {
invalidParts.push(`\`destination\` has unnamed params ${[
...unnamedInDest
].join(', ')}`);
} else {
const { tokens: destTokens, regexStr: destRegexStr, error: destinationParseFailed } = tryToParsePath(route.destination, {
handleUrl: true
});
if (destRegexStr && destRegexStr.length > 4096) {
invalidParts.push('`destination` exceeds max built length of 4096');
}
if (destinationParseFailed) {
invalidParts.push('`destination` parse failed');
} else {
const sourceSegments = new Set(sourceTokens.map((item)=>typeof item === 'object' && item.name).filter(Boolean));
const invalidDestSegments = new Set();
for (const token of destTokens){
if (typeof token === 'object' && !sourceSegments.has(token.name) && !hasSegments.has(token.name)) {
invalidDestSegments.add(token.name);
}
}
if (invalidDestSegments.size) {
invalidParts.push(`\`destination\` has segments not in \`source\` or \`has\` (${[
...invalidDestSegments
].join(', ')})`);
}
}
}
}
}
const hasInvalidKeys = invalidKeys.length > 0;
const hasInvalidParts = invalidParts.length > 0;
if (hasInvalidKeys || hasInvalidParts) {
console.error(`${invalidParts.join(', ')}${invalidKeys.length ? (hasInvalidParts ? ',' : '') + ` invalid field${invalidKeys.length === 1 ? '' : 's'}: ` + invalidKeys.join(',') : ''} for route ${JSON.stringify(route)}`);
console.error();
numInvalidRoutes++;
}
}
if (numInvalidRoutes > 0) {
if (hadInvalidStatus) {
console.error(`\nValid redirect statusCode values are ${[
...allowedStatusCodes
].join(', ')}`);
}
if (hadInvalidHas) {
console.error(`\nValid \`has\` object shape is ${JSON.stringify({
type: [
...allowedHasTypes
].join(', '),
key: 'the key to check for',
value: 'undefined or a value string to match against'
}, null, 2)}`);
}
if (hadInvalidMissing) {
console.error(`\nValid \`missing\` object shape is ${JSON.stringify({
type: [
...allowedHasTypes
].join(', '),
key: 'the key to check for',
value: 'undefined or a value string to match against'
}, null, 2)}`);
}
console.error();
console.error(`Error: Invalid ${type}${numInvalidRoutes === 1 ? '' : 's'} found`);
process.exit(1);
}
}
function processRoutes(routes, config, type) {
const _routes = routes;
const newRoutes = [];
const defaultLocales = [];
if (config.i18n && type === 'redirect') {
var _config_i18n;
for (const item of ((_config_i18n = config.i18n) == null ? void 0 : _config_i18n.domains) || []){
defaultLocales.push({
locale: item.defaultLocale,
base: `http${item.http ? '' : 's'}://${item.domain}`
});
}
defaultLocales.push({
locale: config.i18n.defaultLocale,
base: ''
});
}
for (const r of _routes){
var _r_destination;
const srcBasePath = config.basePath && r.basePath !== false ? config.basePath : '';
const isExternal = !((_r_destination = r.destination) == null ? void 0 : _r_destination.startsWith('/'));
const destBasePath = srcBasePath && !isExternal ? srcBasePath : '';
if (config.i18n && r.locale !== false) {
var _r_destination1;
if (!isExternal) {
defaultLocales.forEach((item)=>{
let destination;
if (r.destination) {
destination = item.base ? `${item.base}${destBasePath}${r.destination}` : `${destBasePath}${r.destination}`;
}
newRoutes.push({
...r,
destination,
source: `${srcBasePath}/${item.locale}${r.source === '/' && !config.trailingSlash ? '' : r.source}`
});
});
}
r.source = `/:nextInternalLocale(${config.i18n.locales.map((locale)=>escapeStringRegexp(locale)).join('|')})${r.source === '/' && !config.trailingSlash ? '' : r.source}`;
if (r.destination && ((_r_destination1 = r.destination) == null ? void 0 : _r_destination1.startsWith('/'))) {
r.destination = `/:nextInternalLocale${r.destination === '/' && !config.trailingSlash ? '' : r.destination}`;
}
}
r.source = `${srcBasePath}${r.source === '/' && srcBasePath ? '' : r.source}`;
if (r.destination) {
r.destination = `${destBasePath}${r.destination === '/' && destBasePath ? '' : r.destination}`;
}
newRoutes.push(r);
}
return newRoutes;
}
async function loadRedirects(config) {
if (typeof config.redirects !== 'function') {
return [];
}
let redirects = await config.redirects();
// check before we process the routes and after to ensure
// they are still valid
checkCustomRoutes(redirects, 'redirect');
// save original redirects before transforms
if (Array.isArray(redirects)) {
config._originalRedirects = redirects.map((r)=>({
...r
}));
}
redirects = processRoutes(redirects, config, 'redirect');
checkCustomRoutes(redirects, 'redirect');
return redirects;
}
async function loadRewrites(config) {
// If assetPrefix is set, add a rewrite for `/${assetPrefix}/_next/*`
// requests so that they are handled in any of dev, start, or deploy
// automatically without the user having to configure this.
// If the assetPrefix is an absolute URL, we still consider the path for automatic rewrite.
// but hostname routing must be handled by the user
let maybeAssetPrefixRewrite = [];
if (config.assetPrefix) {
let prefix = config.assetPrefix;
if (isFullStringUrl(config.assetPrefix) && URL.canParse(config.assetPrefix)) {
prefix = new URL(config.assetPrefix).pathname;
}
if (prefix && prefix !== '/') {
const assetPrefix = prefix.startsWith('/') ? prefix : `/${prefix}`;
const basePath = config.basePath || '';
// If these are the same, then this would result in an infinite rewrite.
if (assetPrefix !== basePath) {
maybeAssetPrefixRewrite.push({
source: `${assetPrefix}/_next/:path+`,
destination: `${basePath}/_next/:path+`
});
}
}
}
if (typeof config.rewrites !== 'function') {
return {
beforeFiles: [
...maybeAssetPrefixRewrite
],
afterFiles: [],
fallback: []
};
}
const _rewrites = await config.rewrites();
let beforeFiles = [];
let afterFiles = [];
let fallback = [];
if (!Array.isArray(_rewrites) && typeof _rewrites === 'object' && Object.keys(_rewrites).every((key)=>key === 'beforeFiles' || key === 'afterFiles' || key === 'fallback')) {
beforeFiles = _rewrites.beforeFiles || [];
afterFiles = _rewrites.afterFiles || [];
fallback = _rewrites.fallback || [];
} else {
afterFiles = _rewrites;
}
// check before we process the routes and after to ensure
// they are still valid
checkCustomRoutes(beforeFiles, 'rewrite');
checkCustomRoutes(afterFiles, 'rewrite');
checkCustomRoutes(fallback, 'rewrite');
// save original rewrites before transforms
config._originalRewrites = {
beforeFiles: beforeFiles.map((r)=>({
...r
})),
afterFiles: afterFiles.map((r)=>({
...r
})),
fallback: fallback.map((r)=>({
...r
}))
};
beforeFiles = [
...maybeAssetPrefixRewrite,
...processRoutes(beforeFiles, config, 'rewrite')
];
afterFiles = processRoutes(afterFiles, config, 'rewrite');
fallback = processRoutes(fallback, config, 'rewrite');
checkCustomRoutes(beforeFiles, 'rewrite');
checkCustomRoutes(afterFiles, 'rewrite');
checkCustomRoutes(fallback, 'rewrite');
return {
beforeFiles,
afterFiles,
fallback
};
}
async function loadHeaders(config) {
if (typeof config.headers !== 'function') {
return [];
}
let headers = await config.headers();
// check before we process the routes and after to ensure
// they are still valid
checkCustomRoutes(headers, 'header');
headers = processRoutes(headers, config, 'header');
checkCustomRoutes(headers, 'header');
return headers;
}
export default async function loadCustomRoutes(config) {
var _config_experimental;
const [headers, rewrites, redirects] = await Promise.all([
loadHeaders(config),
loadRewrites(config),
loadRedirects(config)
]);
const totalRewrites = rewrites.beforeFiles.length + rewrites.afterFiles.length + rewrites.fallback.length;
const totalRoutes = headers.length + redirects.length + totalRewrites;
if (totalRoutes > 1000) {
console.warn(bold(yellow(`Warning: `)) + `total number of custom routes exceeds 1000, this can reduce performance. Route counts:\n` + `headers: ${headers.length}\n` + `rewrites: ${totalRewrites}\n` + `redirects: ${redirects.length}\n` + `See more info: https://nextjs.org/docs/messages/max-custom-routes-reached`);
}
if (((_config_experimental = config.experimental) == null ? void 0 : _config_experimental.useSkewCookie) && config.deploymentId) {
headers.unshift({
source: '/:path*',
headers: [
{
key: 'Set-Cookie',
value: `__vdpl=${config.deploymentId}; Path=/; HttpOnly`
}
]
});
}
if (!config.skipTrailingSlashRedirect) {
if (config.trailingSlash) {
redirects.unshift({
source: '/:file((?!\\.well-known(?:/.*)?)(?:[^/]+/)*[^/]+\\.\\w+)/',
destination: '/:file',
permanent: true,
locale: config.i18n ? false : undefined,
internal: true,
// don't run this redirect for _next/data requests
missing: [
{
type: 'header',
key: 'x-nextjs-data'
}
]
}, {
source: '/:notfile((?!\\.well-known(?:/.*)?)(?:[^/]+/)*[^/\\.]+)',
destination: '/:notfile/',
permanent: true,
locale: config.i18n ? false : undefined,
internal: true
});
if (config.basePath) {
redirects.unshift({
source: config.basePath,
destination: config.basePath + '/',
permanent: true,
basePath: false,
locale: config.i18n ? false : undefined,
internal: true
});
}
} else {
redirects.unshift({
source: '/:path+/',
destination: '/:path+',
permanent: true,
locale: config.i18n ? false : undefined,
internal: true
});
if (config.basePath) {
redirects.unshift({
source: config.basePath + '/',
destination: config.basePath,
permanent: true,
basePath: false,
locale: config.i18n ? false : undefined,
internal: true
});
}
}
}
return {
headers,
rewrites,
redirects
};
}
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