You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.5 KiB
91 lines
2.5 KiB
3 years ago
|
var reIpv4FirstPass = /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/
|
||
|
|
|
||
|
|
var reSubnetString = /\/\d{1,3}(?=%|$)/
|
||
|
|
var reForwardSlash = /\//
|
||
|
|
var reZone = /%.*$/
|
||
|
|
var reBadCharacters = /([^0-9a-f:/%])/i
|
||
|
|
var reBadAddress = /([0-9a-f]{5,}|:{3,}|[^:]:$|^:[^:]|\/$)/i
|
||
|
|
|
||
|
|
function validate4 (input) {
|
||
|
|
if (!(reIpv4FirstPass.test(input))) return false
|
||
|
|
|
||
|
|
var parts = input.split('.')
|
||
|
|
|
||
|
|
if (parts.length !== 4) return false
|
||
|
|
|
||
|
|
if (parts[0][0] === '0' && parts[0].length > 1) return false
|
||
|
|
if (parts[1][0] === '0' && parts[1].length > 1) return false
|
||
|
|
if (parts[2][0] === '0' && parts[2].length > 1) return false
|
||
|
|
if (parts[3][0] === '0' && parts[3].length > 1) return false
|
||
|
|
|
||
|
|
var n0 = Number(parts[0])
|
||
|
|
var n1 = Number(parts[1])
|
||
|
|
var n2 = Number(parts[2])
|
||
|
|
var n3 = Number(parts[3])
|
||
|
|
|
||
|
|
return (n0 >= 0 && n0 < 256 && n1 >= 0 && n1 < 256 && n2 >= 0 && n2 < 256 && n3 >= 0 && n3 < 256)
|
||
|
|
}
|
||
|
|
|
||
|
|
function validate6 (input) {
|
||
|
|
var withoutSubnet = input.replace(reSubnetString, '')
|
||
|
|
var hasSubnet = (input.length !== withoutSubnet.length)
|
||
|
|
|
||
|
|
// FIXME: this should probably be an option in the future
|
||
|
|
if (hasSubnet) return false
|
||
|
|
|
||
|
|
if (!hasSubnet) {
|
||
|
|
if (reForwardSlash.test(input)) return false
|
||
|
|
}
|
||
|
|
|
||
|
|
var withoutZone = withoutSubnet.replace(reZone, '')
|
||
|
|
var lastPartSeparator = withoutZone.lastIndexOf(':')
|
||
|
|
|
||
|
|
if (lastPartSeparator === -1) return false
|
||
|
|
|
||
|
|
var lastPart = withoutZone.substring(lastPartSeparator + 1)
|
||
|
|
var hasV4Part = validate4(lastPart)
|
||
|
|
var address = (hasV4Part ? withoutZone.substring(0, lastPartSeparator + 1) + '1234:5678' : withoutZone)
|
||
|
|
|
||
|
|
if (reBadCharacters.test(address)) return false
|
||
|
|
if (reBadAddress.test(address)) return false
|
||
|
|
|
||
|
|
var halves = address.split('::')
|
||
|
|
|
||
|
|
if (halves.length > 2) return false
|
||
|
|
|
||
|
|
if (halves.length === 2) {
|
||
|
|
var first = (halves[0] === '' ? [] : halves[0].split(':'))
|
||
|
|
var last = (halves[1] === '' ? [] : halves[1].split(':'))
|
||
|
|
var remainingLength = 8 - (first.length + last.length)
|
||
|
|
|
||
|
|
if (remainingLength <= 0) return false
|
||
|
|
} else {
|
||
|
|
if (address.split(':').length !== 8) return false
|
||
|
|
}
|
||
|
|
|
||
|
|
return true
|
||
|
|
}
|
||
|
|
|
||
|
|
function validate (input) {
|
||
|
|
return validate4(input) || validate6(input)
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = function validator (options) {
|
||
|
|
if (!options) options = {}
|
||
|
|
|
||
|
|
if (options.version === 4) return validate4
|
||
|
|
if (options.version === 6) return validate6
|
||
|
|
if (options.version == null) return validate
|
||
|
|
|
||
|
|
throw new Error('Unknown version: ' + options.version)
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports['__all_regexes__'] = [
|
||
|
|
reIpv4FirstPass,
|
||
|
|
reSubnetString,
|
||
|
|
reForwardSlash,
|
||
|
|
reZone,
|
||
|
|
reBadCharacters,
|
||
|
|
reBadAddress
|
||
|
|
]
|