341 lines
10 KiB
JavaScript

'use strict'
const { normalizeIPv6, removeDotSegments, recomposeAuthority, normalizeComponentEncoding, isIPv4, nonSimpleDomain } = require('./lib/utils')
const { SCHEMES, getSchemeHandler } = require('./lib/schemes')
/**
* @template {import('./types/index').URIComponent|string} T
* @param {T} uri
* @param {import('./types/index').Options} [options]
* @returns {T}
*/
function normalize (uri, options) {
if (typeof uri === 'string') {
uri = /** @type {T} */ (serialize(parse(uri, options), options))
} else if (typeof uri === 'object') {
uri = /** @type {T} */ (parse(serialize(uri, options), options))
}
return uri
}
/**
* @param {string} baseURI
* @param {string} relativeURI
* @param {import('./types/index').Options} [options]
* @returns {string}
*/
function resolve (baseURI, relativeURI, options) {
const schemelessOptions = options ? Object.assign({ scheme: 'null' }, options) : { scheme: 'null' }
const resolved = resolveComponent(parse(baseURI, schemelessOptions), parse(relativeURI, schemelessOptions), schemelessOptions, true)
schemelessOptions.skipEscape = true
return serialize(resolved, schemelessOptions)
}
/**
* @param {import ('./types/index').URIComponent} base
* @param {import ('./types/index').URIComponent} relative
* @param {import('./types/index').Options} [options]
* @param {boolean} [skipNormalization=false]
* @returns {import ('./types/index').URIComponent}
*/
function resolveComponent (base, relative, options, skipNormalization) {
/** @type {import('./types/index').URIComponent} */
const target = {}
if (!skipNormalization) {
base = parse(serialize(base, options), options) // normalize base component
relative = parse(serialize(relative, options), options) // normalize relative component
}
options = options || {}
if (!options.tolerant && relative.scheme) {
target.scheme = relative.scheme
// target.authority = relative.authority;
target.userinfo = relative.userinfo
target.host = relative.host
target.port = relative.port
target.path = removeDotSegments(relative.path || '')
target.query = relative.query
} else {
if (relative.userinfo !== undefined || relative.host !== undefined || relative.port !== undefined) {
// target.authority = relative.authority;
target.userinfo = relative.userinfo
target.host = relative.host
target.port = relative.port
target.path = removeDotSegments(relative.path || '')
target.query = relative.query
} else {
if (!relative.path) {
target.path = base.path
if (relative.query !== undefined) {
target.query = relative.query
} else {
target.query = base.query
}
} else {
if (relative.path[0] === '/') {
target.path = removeDotSegments(relative.path)
} else {
if ((base.userinfo !== undefined || base.host !== undefined || base.port !== undefined) && !base.path) {
target.path = '/' + relative.path
} else if (!base.path) {
target.path = relative.path
} else {
target.path = base.path.slice(0, base.path.lastIndexOf('/') + 1) + relative.path
}
target.path = removeDotSegments(target.path)
}
target.query = relative.query
}
// target.authority = base.authority;
target.userinfo = base.userinfo
target.host = base.host
target.port = base.port
}
target.scheme = base.scheme
}
target.fragment = relative.fragment
return target
}
/**
* @param {import ('./types/index').URIComponent|string} uriA
* @param {import ('./types/index').URIComponent|string} uriB
* @param {import ('./types/index').Options} options
* @returns {boolean}
*/
function equal (uriA, uriB, options) {
if (typeof uriA === 'string') {
uriA = unescape(uriA)
uriA = serialize(normalizeComponentEncoding(parse(uriA, options), true), { ...options, skipEscape: true })
} else if (typeof uriA === 'object') {
uriA = serialize(normalizeComponentEncoding(uriA, true), { ...options, skipEscape: true })
}
if (typeof uriB === 'string') {
uriB = unescape(uriB)
uriB = serialize(normalizeComponentEncoding(parse(uriB, options), true), { ...options, skipEscape: true })
} else if (typeof uriB === 'object') {
uriB = serialize(normalizeComponentEncoding(uriB, true), { ...options, skipEscape: true })
}
return uriA.toLowerCase() === uriB.toLowerCase()
}
/**
* @param {Readonly<import('./types/index').URIComponent>} cmpts
* @param {import('./types/index').Options} [opts]
* @returns {string}
*/
function serialize (cmpts, opts) {
const component = {
host: cmpts.host,
scheme: cmpts.scheme,
userinfo: cmpts.userinfo,
port: cmpts.port,
path: cmpts.path,
query: cmpts.query,
nid: cmpts.nid,
nss: cmpts.nss,
uuid: cmpts.uuid,
fragment: cmpts.fragment,
reference: cmpts.reference,
resourceName: cmpts.resourceName,
secure: cmpts.secure,
error: ''
}
const options = Object.assign({}, opts)
const uriTokens = []
// find scheme handler
const schemeHandler = getSchemeHandler(options.scheme || component.scheme)
// perform scheme specific serialization
if (schemeHandler && schemeHandler.serialize) schemeHandler.serialize(component, options)
if (component.path !== undefined) {
if (!options.skipEscape) {
component.path = escape(component.path)
if (component.scheme !== undefined) {
component.path = component.path.split('%3A').join(':')
}
} else {
component.path = unescape(component.path)
}
}
if (options.reference !== 'suffix' && component.scheme) {
uriTokens.push(component.scheme, ':')
}
const authority = recomposeAuthority(component)
if (authority !== undefined) {
if (options.reference !== 'suffix') {
uriTokens.push('//')
}
uriTokens.push(authority)
if (component.path && component.path[0] !== '/') {
uriTokens.push('/')
}
}
if (component.path !== undefined) {
let s = component.path
if (!options.absolutePath && (!schemeHandler || !schemeHandler.absolutePath)) {
s = removeDotSegments(s)
}
if (
authority === undefined &&
s[0] === '/' &&
s[1] === '/'
) {
// don't allow the path to start with "//"
s = '/%2F' + s.slice(2)
}
uriTokens.push(s)
}
if (component.query !== undefined) {
uriTokens.push('?', component.query)
}
if (component.fragment !== undefined) {
uriTokens.push('#', component.fragment)
}
return uriTokens.join('')
}
const URI_PARSE = /^(?:([^#/:?]+):)?(?:\/\/((?:([^#/?@]*)@)?(\[[^#/?\]]+\]|[^#/:?]*)(?::(\d*))?))?([^#?]*)(?:\?([^#]*))?(?:#((?:.|[\n\r])*))?/u
/**
* @param {string} uri
* @param {import('./types/index').Options} [opts]
* @returns
*/
function parse (uri, opts) {
const options = Object.assign({}, opts)
/** @type {import('./types/index').URIComponent} */
const parsed = {
scheme: undefined,
userinfo: undefined,
host: '',
port: undefined,
path: '',
query: undefined,
fragment: undefined
}
let isIP = false
if (options.reference === 'suffix') {
if (options.scheme) {
uri = options.scheme + ':' + uri
} else {
uri = '//' + uri
}
}
const matches = uri.match(URI_PARSE)
if (matches) {
// store each component
parsed.scheme = matches[1]
parsed.userinfo = matches[3]
parsed.host = matches[4]
parsed.port = parseInt(matches[5], 10)
parsed.path = matches[6] || ''
parsed.query = matches[7]
parsed.fragment = matches[8]
// fix port number
if (isNaN(parsed.port)) {
parsed.port = matches[5]
}
if (parsed.host) {
const ipv4result = isIPv4(parsed.host)
if (ipv4result === false) {
const ipv6result = normalizeIPv6(parsed.host)
parsed.host = ipv6result.host.toLowerCase()
isIP = ipv6result.isIPV6
} else {
isIP = true
}
}
if (parsed.scheme === undefined && parsed.userinfo === undefined && parsed.host === undefined && parsed.port === undefined && parsed.query === undefined && !parsed.path) {
parsed.reference = 'same-document'
} else if (parsed.scheme === undefined) {
parsed.reference = 'relative'
} else if (parsed.fragment === undefined) {
parsed.reference = 'absolute'
} else {
parsed.reference = 'uri'
}
// check for reference errors
if (options.reference && options.reference !== 'suffix' && options.reference !== parsed.reference) {
parsed.error = parsed.error || 'URI is not a ' + options.reference + ' reference.'
}
// find scheme handler
const schemeHandler = getSchemeHandler(options.scheme || parsed.scheme)
// check if scheme can't handle IRIs
if (!options.unicodeSupport && (!schemeHandler || !schemeHandler.unicodeSupport)) {
// if host component is a domain name
if (parsed.host && (options.domainHost || (schemeHandler && schemeHandler.domainHost)) && isIP === false && nonSimpleDomain(parsed.host)) {
// convert Unicode IDN -> ASCII IDN
try {
parsed.host = URL.domainToASCII(parsed.host.toLowerCase())
} catch (e) {
parsed.error = parsed.error || "Host's domain name can not be converted to ASCII: " + e
}
}
// convert IRI -> URI
}
if (!schemeHandler || (schemeHandler && !schemeHandler.skipNormalize)) {
if (uri.indexOf('%') !== -1) {
if (parsed.scheme !== undefined) {
parsed.scheme = unescape(parsed.scheme)
}
if (parsed.host !== undefined) {
parsed.host = unescape(parsed.host)
}
}
if (parsed.path) {
parsed.path = escape(unescape(parsed.path))
}
if (parsed.fragment) {
parsed.fragment = encodeURI(decodeURIComponent(parsed.fragment))
}
}
// perform scheme specific parsing
if (schemeHandler && schemeHandler.parse) {
schemeHandler.parse(parsed, options)
}
} else {
parsed.error = parsed.error || 'URI can not be parsed.'
}
return parsed
}
const fastUri = {
SCHEMES,
normalize,
resolve,
resolveComponent,
equal,
serialize,
parse
}
module.exports = fastUri
module.exports.default = fastUri
module.exports.fastUri = fastUri