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| import Validators from './validators'
import { regFormat } from './helpers'
// user:pass BasicAuth (optional)
const BASIC_AUTH = '(?:\\S+(?::\\S*)?@)?'
// IP address dotted notation octets
const IPV4 =
'(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]?|0)\\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]?|0)'
// the IPv6 matching part is from here: https://gist.github.com/syzdek/6086792
// IPv6 address in URLs are wrapped with []s
const IPV6 =
`\\[(?:` +
[
// 1:2:3:4:5:6:7:8
'(?:[\\da-f]{1,4}:){7,7}[\\da-f]{1,4}',
// 2001:db8:3:4::192.0.2.33 64:ff9b::192.0.2.33 (IPv4-Embedded IPv6 Address)
'(?:[\\da-f]{1,4}:){1,4}:' + IPV4,
// ::255.255.255.255 ::ffff:255.255.255.255 ::ffff:0:255.255.255.255 (IPv4-mapped IPv6 addresses)
'::(?:ffff(?::0{1,4}){0,1}:){0,1}' + IPV4,
// 1::3:4:5:6:7:8 1::3:4:5:6:7:8 1::8
'[\\da-f]{1,4}:(?:(?::[\\da-f]{1,4}){1,6})',
// 1::4:5:6:7:8 1:2::4:5:6:7:8 1:2::8
'(?:[\\da-f]{1,4}:){1,2}(?::[\\da-f]{1,4}){1,5}',
// 1::5:6:7:8 1:2:3::5:6:7:8 1:2:3::8
'(?:[\\da-f]{1,4}:){1,3}(?::[\\da-f]{1,4}){1,4}',
// 1::6:7:8 1:2:3:4::6:7:8 1:2:3:4::8
'(?:[\\da-f]{1,4}:){1,4}(?::[\\da-f]{1,4}){1,3}',
// 1::7:8 1:2:3:4:5::7:8 1:2:3:4:5::8
'(?:[\\da-f]{1,4}:){1,5}(?::[\\da-f]{1,4}){1,2}',
// 1::8 1:2:3:4:5:6::8 1:2:3:4:5:6::8
'(?:[\\da-f]{1,4}:){1,6}:[\\da-f]{1,4}',
// 1::
'(?:[\\da-f]{1,4}:){1,7}:',
// ::2:3:4:5:6:7:8 ::2:3:4:5:6:7:8 ::8 ::
':(?:(?::[\\da-f]{1,4}){1,7}|:)'
].join('|') +
')\\]'
// host & domain names, may end with dot
const HOST =
// can be replaced by
// '(?:(?:[a-z0-9\\u00a1-\\uffff][a-z0-9\\u00a1-\\uffff_-]{0,62})?[a-z0-9\\u00a1-\\uffff]\\.)+' +
'(?![-_])(?:[-\\w\\u00a1-\\uffff]{0,63}[^-_]\\.)+' +
// TLD identifier name, may end with dot
'(?:[a-z\\u00a1-\\uffff]{2,}\\.?)'
// port number (optional)
const PORT = '(?::\\d{2,5})?'
// resource path (optional)
const PATH = '(?:[/][^\\s?#]*)?'
const SEARCH = '(?:[?][^\\s#]*)?'
const HASH = '(?:[#]\\S*)?'
const DEFAULT_OPTIONS = {
protocolIdentifier: true,
basicAuth: true,
local: true,
ipv4: true,
ipv6: true,
host: true,
port: true,
path: true,
search: true,
hash: true
}
const STRIP_PROTOCOL_REG = /:?\/\/$/
const CLEAN_UP_PROPS = 'protocol ipv4 host path search hash'.split(' ')
function parseURL (url, options) {
options = defaultOptions(options)
let parts = url.match(buildReg(options, true))
if (!parts) return null
let group = 1
let h = {
protocol: parts[group++].replace(STRIP_PROTOCOL_REG, '')
}
Eif (options.basicAuth) {
let auth = parts[group++]
Eif (auth) {
let [username, ...password] = auth.slice(0, -1).split(':')
h.basicAuth = { username, password: password.length ? password.join(':') : void 0 }
}
}
Eif (options.ipv4) h.ipv4 = parts[group++]
Eif (options.ipv6) {
let ipv6 = parts[group++]
if (ipv6) h.ipv6 = ipv6.slice(1, -1)
}
Eif (options.host) h.host = parts[group++]
Eif (options.local) h.host = parts[group++] || h.host
Eif (options.port) {
let port = parts[group++]
Eif (port) h.port = +port.slice(1)
}
Eif (options.path) h.path = parts[group++]
Eif (options.search) h.search = parts[group++]
Eif (options.hash) h.hash = parts[group++]
// Clean up
CLEAN_UP_PROPS.forEach(k => {
if (!h[k]) delete h[k]
})
return h
}
// Uses "format" internally which is already memoized
let url = regFormat(options => buildReg(defaultOptions(options), false), 'url')
url.parseURL = parseURL
export default url
function defaultOptions (options) {
options = Object.assign({}, DEFAULT_OPTIONS, options)
options.protocols = []
.concat(options.protocol || options.protocols || Validators.defaultOptions.urlProtocols)
.join('|')
return options
}
function group (option, regPart, capture) {
return option ? (capture ? `(${regPart})` : regPart) : ''
}
function buildReg (options, capture) {
return new RegExp(
'^' +
group(true, `(?:(?:(?:${options.protocols}):)?\\/\\/)${options.protocolIdentifier ? '' : '?'}`, capture) +
group(options.basicAuth, BASIC_AUTH, capture) +
`(?:${[
group(options.ipv4, IPV4, capture),
group(options.ipv6, IPV6, capture),
group(options.host, HOST, capture),
group(options.local, 'localhost', capture)
].join('|')})` +
group(options.port, PORT, capture) +
group(options.path, PATH, capture) +
group(options.search, SEARCH, capture) +
group(options.hash, HASH, capture) +
'$',
'i'
)
}
|