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Mini Shell
Mini Shell
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = loadCustomRoutes;
exports.normalizeRouteRegex = normalizeRouteRegex;
exports.checkCustomRoutes = checkCustomRoutes;
var _chalk = _interopRequireDefault(require("./chalk"));
var _escapeRegexp = require("../shared/lib/escape-regexp");
var _tryToParsePath = require("./try-to-parse-path");
var _redirectStatus = require("./redirect-status");
async function loadCustomRoutes(config) {
var ref;
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(_chalk.default.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 (!((ref = config.experimental) == null ? void 0 : ref.skipTrailingSlashRedirect)) {
if (config.trailingSlash) {
redirects.unshift({
source: "/:file((?!\\.well-known(?:/.*)?)(?:[^/]+/)*[^/]+\\.\\w+)/",
destination: "/:file",
permanent: true,
locale: config.i18n ? false : undefined,
internal: true
}, {
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
};
}
function _interopRequireDefault(obj) {
return obj && obj.__esModule ? obj : {
default: obj
};
}
const allowedHasTypes = new Set([
"header",
"cookie",
"query",
"host"
]);
const namedGroupsRegex = /\(\?<([a-zA-Z][a-zA-Z0-9]*)>/g;
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 && !_redirectStatus.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;
}
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 } = (0, _tryToParsePath).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 ${[
...unnamedInDest
].join(", ")}`);
} else {
const { tokens: destTokens , regexStr: destRegexStr , error: destinationParseFailed , } = (0, _tryToParsePath).tryToParsePath(route.destination, {
handleUrl: true
});
if (destRegexStr && destRegexStr.length > 4096) {
invalidParts.push("`destination` exceeds max built length of 4096");
}
if (destinationParseFailed) {
invalidParts.push("`destination` parse failed");
} else {
const sourceSegments = new Set(sourceTokens.map((item)=>typeof item === "object" && item.name).filter(Boolean));
const invalidDestSegments = new Set();
for (const token of destTokens){
if (typeof token === "object" && !sourceSegments.has(token.name) && !hasSegments.has(token.name)) {
invalidDestSegments.add(token.name);
}
}
if (invalidDestSegments.size) {
invalidParts.push(`\`destination\` has segments not in \`source\` or \`has\` (${[
...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 ${[
..._redirectStatus.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 ref;
for (const item of ((ref = config.i18n) == null ? void 0 : ref.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 ref1;
const srcBasePath = config.basePath && r.basePath !== false ? config.basePath : "";
const isExternal = !((ref1 = r.destination) == null ? void 0 : ref1.startsWith("/"));
const destBasePath = srcBasePath && !isExternal ? srcBasePath : "";
if (config.i18n && r.locale !== false) {
var ref2;
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}`
});
});
}
r.source = `/:nextInternalLocale(${config.i18n.locales.map((locale)=>(0, _escapeRegexp).escapeStringRegexp(locale)).join("|")})${r.source === "/" && !config.trailingSlash ? "" : r.source}`;
if (r.destination && ((ref2 = r.destination) == null ? void 0 : ref2.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");
redirects = processRoutes(redirects, config, "redirect");
checkCustomRoutes(redirects, "redirect");
return redirects;
}
async function loadRewrites(config) {
if (typeof config.rewrites !== "function") {
return {
beforeFiles: [],
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");
beforeFiles = 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;
}
//# sourceMappingURL=load-custom-routes.js.map
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