next/dist/lib/load-custom-routes.js

The React Framework

"use strict";exports.__esModule=true;exports.getRedirectStatus=getRedirectStatus;exports.normalizeRouteRegex=normalizeRouteRegex;exports.default=loadCustomRoutes;exports.allowedStatusCodes=void 0;var _url=require("url");var pathToRegexp=_interopRequireWildcard(require("next/dist/compiled/path-to-regexp"));var _escapeStringRegexp=_interopRequireDefault(require("next/dist/compiled/escape-string-regexp"));var _constants=require("../next-server/lib/constants");function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _getRequireWildcardCache(){if(typeof WeakMap!=="function")return null;var cache=new WeakMap();_getRequireWildcardCache=function(){return cache;};return cache;}function _interopRequireWildcard(obj){if(obj&&obj.__esModule){return obj;}if(obj===null||typeof obj!=="object"&&typeof obj!=="function"){return{default:obj};}var cache=_getRequireWildcardCache();if(cache&&cache.has(obj)){return cache.get(obj);}var newObj={};var hasPropertyDescriptor=Object.defineProperty&&Object.getOwnPropertyDescriptor;for(var key in obj){if(Object.prototype.hasOwnProperty.call(obj,key)){var desc=hasPropertyDescriptor?Object.getOwnPropertyDescriptor(obj,key):null;if(desc&&(desc.get||desc.set)){Object.defineProperty(newObj,key,desc);}else{newObj[key]=obj[key];}}}newObj.default=obj;if(cache){cache.set(obj,newObj);}return newObj;}const allowedStatusCodes=new Set([301,302,303,307,308]);exports.allowedStatusCodes=allowedStatusCodes;function getRedirectStatus(route){return route.statusCode||(route.permanent?_constants.PERMANENT_REDIRECT_STATUS:_constants.TEMPORARY_REDIRECT_STATUS);}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{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 tryParsePath(route,handleUrl){const result={};let routePath=route;try{if(handleUrl){const parsedDestination=(0,_url.parse)(route,true);routePath=`${parsedDestination.pathname}${parsedDestination.hash||''}`;}// Make sure we can parse the source properly
result.tokens=pathToRegexp.parse(routePath);pathToRegexp.tokensToRegexp(result.tokens);}catch(err){// If there is an error show our err.sh but still show original error or a formatted one if we can
const errMatches=err.message.match(/at (\d{0,})/);if(errMatches){const position=parseInt(errMatches[1],10);console.error(`\nError parsing \`${route}\` `+`https://err.sh/vercel/next.js/invalid-route-source\n`+`Reason: ${err.message}\n\n`+`  ${routePath}\n`+`  ${new Array(position).fill(' ').join('')}^\n`);}else{console.error(`\nError parsing ${route} https://err.sh/vercel/next.js/invalid-route-source`,err);}result.error=true;}return result;}function checkCustomRoutes(routes,type){if(!Array.isArray(routes)){throw new Error(`${type}s must return an array, received ${typeof routes}.\n`+`See here for more info: https://err.sh/next.js/routes-must-be-array`);}let numInvalidRoutes=0;let hadInvalidStatus=false;const isRedirect=type==='redirect';let allowedKeys;if(type==='rewrite'||isRedirect){allowedKeys=new Set(['source','destination','basePath','locale',...(isRedirect?['statusCode','permanent']:[])]);}else{allowedKeys=new Set(['source','headers','basePath','locale']);}for(const route of routes){if(!route||typeof route!=='object'){console.error(`The route ${JSON.stringify(route)} is not a valid object with \`source\` and \`${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://err.sh/vercel/next.js/invalid-external-rewrite.md`);numInvalidRoutes++;continue;}const keys=Object.keys(route);const invalidKeys=keys.filter(key=>!allowedKeys.has(key));const invalidParts=[];if(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');}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{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}=tryParsePath(route.source);if(error){invalidParts.push('`source` parse failed');}sourceTokens=tokens;}// 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 ${[...unnamedInDest].join(', ')}`);}else{const{tokens:destTokens,error:destinationParseFailed}=tryParsePath(route.destination,true);if(destinationParseFailed){invalidParts.push('`destination` parse failed');}else{const sourceSegments=new Set(sourceTokens.map(item=>typeof item==='object'&&item.name).filter(Boolean));const invalidDestSegments=new Set();for(const token of destTokens){if(typeof token==='object'&&!sourceSegments.has(token.name)){invalidDestSegments.add(token.name);}}if(invalidDestSegments.size){invalidParts.push(`\`destination\` has segments not in \`source\` (${[...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)}`);numInvalidRoutes++;}}if(numInvalidRoutes>0){if(hadInvalidStatus){console.error(`\nValid redirect statusCode values are ${[...allowedStatusCodes].join(', ')}`);}console.error();throw new Error(`Invalid ${type}${numInvalidRoutes===1?'':'s'} found`);}}function processRoutes(routes,config,type){const _routes=routes;const newRoutes=[];const defaultLocales=[];if(config.i18n&&type==='redirect'){for(const item of((_config$i18n=config.i18n)==null?void 0:_config$i18n.domains)||[]){var _config$i18n;defaultLocales.push({locale:item.defaultLocale,base:`http${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$destination=r.destination)!=null&&_r$destination.startsWith('/'));const destBasePath=srcBasePath&&!isExternal?srcBasePath:'';if(config.i18n&&r.locale!==false){var _r$destination2;defaultLocales.forEach(item=>{let destination;if(r.destination){destination=item.base?`${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,_escapeStringRegexp.default)(locale)).join('|')})${r.source==='/'&&!config.trailingSlash?'':r.source}`;if(r.destination&&(_r$destination2=r.destination)!=null&&_r$destination2.startsWith('/')){r.destination=`/:nextInternalLocale${r.destination==='/'&&!config.trailingSlash?'':r.destination}`;}}r.source=`${srcBasePath}${r.source}`;if(r.destination){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();checkCustomRoutes(redirects,'redirect');return processRoutes(redirects,config,'redirect');}async function loadRewrites(config){if(typeof config.rewrites!=='function'){return[];}let rewrites=await config.rewrites();checkCustomRoutes(rewrites,'rewrite');return processRoutes(rewrites,config,'rewrite');}async function loadHeaders(config){if(typeof config.headers!=='function'){return[];}let headers=await config.headers();checkCustomRoutes(headers,'header');return processRoutes(headers,config,'header');}async function loadCustomRoutes(config){const[headers,rewrites,redirects]=await Promise.all([loadHeaders(config),loadRewrites(config),loadRedirects(config)]);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};}
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