/
next-url.ts
256 lines (207 loc) · 5.54 KB
/
next-url.ts
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import type { PathLocale } from '../../shared/lib/i18n/normalize-locale-path'
import type { DomainLocale, I18NConfig } from '../config-shared'
import { getLocaleMetadata } from '../../shared/lib/i18n/get-locale-metadata'
import { replaceBasePath } from '../router'
import cookie from 'next/dist/compiled/cookie'
interface Options {
base?: string | URL
basePath?: string
headers?: { [key: string]: string | string[] | undefined }
i18n?: I18NConfig | null
trailingSlash?: boolean
}
const Internal = Symbol('NextURLInternal')
export class NextURL extends URL {
[Internal]: {
url: URL
options: Options
basePath: string
locale?: {
defaultLocale: string
domain?: DomainLocale
locale: string
path: PathLocale
redirect?: string
trailingSlash?: boolean
}
}
constructor(input: string | URL, base?: string | URL, opts?: Options)
constructor(input: string | URL, opts?: Options)
constructor(
input: string | URL,
baseOrOpts?: string | URL | Options,
opts?: Options
) {
super('http://127.0.0.1') // This works as a placeholder
let base: undefined | string | URL
let options: Options
if (baseOrOpts instanceof URL || typeof baseOrOpts === 'string') {
base = baseOrOpts
options = opts || {}
} else {
options = opts || baseOrOpts || {}
}
this[Internal] = {
url: parseURL(input, base ?? options.base),
options: options,
basePath: '',
}
this.analyzeUrl()
}
private analyzeUrl() {
const { headers = {}, basePath, i18n } = this[Internal].options
if (basePath && this[Internal].url.pathname.startsWith(basePath)) {
this[Internal].url.pathname = replaceBasePath(
this[Internal].url.pathname,
basePath
)
this[Internal].basePath = basePath
} else {
this[Internal].basePath = ''
}
if (i18n) {
this[Internal].locale = getLocaleMetadata({
cookies: () => {
const value = headers['cookie']
return value
? cookie.parse(Array.isArray(value) ? value.join(';') : value)
: {}
},
headers: headers,
nextConfig: {
basePath: basePath,
i18n: i18n,
},
url: {
hostname: this[Internal].url.hostname || null,
pathname: this[Internal].url.pathname,
},
})
if (this[Internal].locale?.path.detectedLocale) {
this[Internal].url.pathname = this[Internal].locale!.path.pathname
}
}
}
private formatPathname() {
const { i18n } = this[Internal].options
let pathname = this[Internal].url.pathname
if (
this[Internal].locale?.locale &&
i18n?.defaultLocale !== this[Internal].locale?.locale
) {
pathname = `/${this[Internal].locale?.locale}${pathname}`
}
if (this[Internal].basePath) {
pathname = `${this[Internal].basePath}${pathname}`
}
return pathname
}
public get locale() {
return this[Internal].locale?.locale ?? ''
}
public set locale(locale: string) {
if (
!this[Internal].locale ||
!this[Internal].options.i18n?.locales.includes(locale)
) {
throw new TypeError(
`The NextURL configuration includes no locale "${locale}"`
)
}
this[Internal].locale!.locale = locale
}
get defaultLocale() {
return this[Internal].locale?.defaultLocale
}
get domainLocale() {
return this[Internal].locale?.domain
}
get searchParams() {
return this[Internal].url.searchParams
}
get host() {
return this[Internal].url.host
}
set host(value: string) {
this[Internal].url.host = value
}
get hostname() {
return this[Internal].url.hostname
}
set hostname(value: string) {
this[Internal].url.hostname = value
}
get port() {
return this[Internal].url.port
}
set port(value: string) {
this[Internal].url.port = value
}
get protocol() {
return this[Internal].url.protocol
}
set protocol(value: string) {
this[Internal].url.protocol = value
}
get href() {
const pathname = this.formatPathname()
return `${this.protocol}//${this.host}${pathname}${this[Internal].url.search}`
}
set href(url: string) {
this[Internal].url = parseURL(url)
this.analyzeUrl()
}
get origin() {
return this[Internal].url.origin
}
get pathname() {
return this[Internal].url.pathname
}
set pathname(value: string) {
this[Internal].url.pathname = value
}
get hash() {
return this[Internal].url.hash
}
set hash(value: string) {
this[Internal].url.hash = value
}
get search() {
return this[Internal].url.search
}
set search(value: string) {
this[Internal].url.search = value
}
get password() {
return this[Internal].url.password
}
set password(value: string) {
this[Internal].url.password = value
}
get username() {
return this[Internal].url.username
}
set username(value: string) {
this[Internal].url.username = value
}
get basePath() {
return this[Internal].basePath
}
set basePath(value: string) {
this[Internal].basePath = value.startsWith('/') ? value : `/${value}`
}
toString() {
return this.href
}
toJSON() {
return this.href
}
}
const REGEX_LOCALHOST_HOSTNAME =
/(?!^https?:\/\/)(127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}|::1|localhost)/
function parseURL(url: string | URL, base?: string | URL) {
return new URL(
String(url).replace(REGEX_LOCALHOST_HOSTNAME, 'localhost'),
base && String(base).replace(REGEX_LOCALHOST_HOSTNAME, 'localhost')
)
}