n4s
Version:
Assertion library for form validations
369 lines (282 loc) • 12.8 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(require('n4s')) :
typeof define === 'function' && define.amd ? define(['n4s'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.n4s));
})(this, (function (n4s) { 'use strict';
function _typeof$1(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof$1 = function _typeof(obj) { return typeof obj; }; } else { _typeof$1 = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof$1(obj); }
function assertString(input) {
var isString = typeof input === 'string' || input instanceof String;
if (!isString) {
var invalidType = _typeof$1(input);
if (input === null) invalidType = 'null';else if (invalidType === 'object') invalidType = input.constructor.name;
throw new TypeError("Expected a string but received a ".concat(invalidType));
}
}
function merge() {
var obj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var defaults = arguments.length > 1 ? arguments[1] : undefined;
for (var key in defaults) {
if (typeof obj[key] === 'undefined') {
obj[key] = defaults[key];
}
}
return obj;
}
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
/* eslint-disable prefer-rest-params */
function isByteLength(str, options) {
assertString(str);
var min;
var max;
if (_typeof(options) === 'object') {
min = options.min || 0;
max = options.max;
} else {
// backwards compatibility: isByteLength(str, min [, max])
min = arguments[1];
max = arguments[2];
}
var len = encodeURI(str).split(/%..|./).length - 1;
return len >= min && (typeof max === 'undefined' || len <= max);
}
var default_fqdn_options = {
require_tld: true,
allow_underscores: false,
allow_trailing_dot: false,
allow_numeric_tld: false,
allow_wildcard: false,
ignore_max_length: false
};
function isFQDN(str, options) {
assertString(str);
options = merge(options, default_fqdn_options);
/* Remove the optional trailing dot before checking validity */
if (options.allow_trailing_dot && str[str.length - 1] === '.') {
str = str.substring(0, str.length - 1);
}
/* Remove the optional wildcard before checking validity */
if (options.allow_wildcard === true && str.indexOf('*.') === 0) {
str = str.substring(2);
}
var parts = str.split('.');
var tld = parts[parts.length - 1];
if (options.require_tld) {
// disallow fqdns without tld
if (parts.length < 2) {
return false;
}
if (!options.allow_numeric_tld && !/^([a-z\u00A1-\u00A8\u00AA-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]{2,}|xn[a-z0-9-]{2,})$/i.test(tld)) {
return false;
} // disallow spaces
if (/\s/.test(tld)) {
return false;
}
} // reject numeric TLDs
if (!options.allow_numeric_tld && /^\d+$/.test(tld)) {
return false;
}
return parts.every(function (part) {
if (part.length > 63 && !options.ignore_max_length) {
return false;
}
if (!/^[a-z_\u00a1-\uffff0-9-]+$/i.test(part)) {
return false;
} // disallow full-width chars
if (/[\uff01-\uff5e]/.test(part)) {
return false;
} // disallow parts starting or ending with hyphen
if (/^-|-$/.test(part)) {
return false;
}
if (!options.allow_underscores && /_/.test(part)) {
return false;
}
return true;
});
}
/**
11.3. Examples
The following addresses
fe80::1234 (on the 1st link of the node)
ff02::5678 (on the 5th link of the node)
ff08::9abc (on the 10th organization of the node)
would be represented as follows:
fe80::1234%1
ff02::5678%5
ff08::9abc%10
(Here we assume a natural translation from a zone index to the
<zone_id> part, where the Nth zone of any scope is translated into
"N".)
If we use interface names as <zone_id>, those addresses could also be
represented as follows:
fe80::1234%ne0
ff02::5678%pvc1.3
ff08::9abc%interface10
where the interface "ne0" belongs to the 1st link, "pvc1.3" belongs
to the 5th link, and "interface10" belongs to the 10th organization.
* * */
var IPv4SegmentFormat = '(?:[0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])';
var IPv4AddressFormat = "(".concat(IPv4SegmentFormat, "[.]){3}").concat(IPv4SegmentFormat);
var IPv4AddressRegExp = new RegExp("^".concat(IPv4AddressFormat, "$"));
var IPv6SegmentFormat = '(?:[0-9a-fA-F]{1,4})';
var IPv6AddressRegExp = new RegExp('^(' + "(?:".concat(IPv6SegmentFormat, ":){7}(?:").concat(IPv6SegmentFormat, "|:)|") + "(?:".concat(IPv6SegmentFormat, ":){6}(?:").concat(IPv4AddressFormat, "|:").concat(IPv6SegmentFormat, "|:)|") + "(?:".concat(IPv6SegmentFormat, ":){5}(?::").concat(IPv4AddressFormat, "|(:").concat(IPv6SegmentFormat, "){1,2}|:)|") + "(?:".concat(IPv6SegmentFormat, ":){4}(?:(:").concat(IPv6SegmentFormat, "){0,1}:").concat(IPv4AddressFormat, "|(:").concat(IPv6SegmentFormat, "){1,3}|:)|") + "(?:".concat(IPv6SegmentFormat, ":){3}(?:(:").concat(IPv6SegmentFormat, "){0,2}:").concat(IPv4AddressFormat, "|(:").concat(IPv6SegmentFormat, "){1,4}|:)|") + "(?:".concat(IPv6SegmentFormat, ":){2}(?:(:").concat(IPv6SegmentFormat, "){0,3}:").concat(IPv4AddressFormat, "|(:").concat(IPv6SegmentFormat, "){1,5}|:)|") + "(?:".concat(IPv6SegmentFormat, ":){1}(?:(:").concat(IPv6SegmentFormat, "){0,4}:").concat(IPv4AddressFormat, "|(:").concat(IPv6SegmentFormat, "){1,6}|:)|") + "(?::((?::".concat(IPv6SegmentFormat, "){0,5}:").concat(IPv4AddressFormat, "|(?::").concat(IPv6SegmentFormat, "){1,7}|:))") + ')(%[0-9a-zA-Z-.:]{1,})?$');
function isIP(str) {
var version = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
assertString(str);
version = String(version);
if (!version) {
return isIP(str, 4) || isIP(str, 6);
}
if (version === '4') {
return IPv4AddressRegExp.test(str);
}
if (version === '6') {
return IPv6AddressRegExp.test(str);
}
return false;
}
var default_email_options = {
allow_display_name: false,
require_display_name: false,
allow_utf8_local_part: true,
require_tld: true,
blacklisted_chars: '',
ignore_max_length: false,
host_blacklist: [],
host_whitelist: []
};
/* eslint-disable max-len */
/* eslint-disable no-control-regex */
var splitNameAddress = /^([^\x00-\x1F\x7F-\x9F\cX]+)</i;
var emailUserPart = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~]+$/i;
var gmailUserPart = /^[a-z\d]+$/;
var quotedEmailUser = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f]))*$/i;
var emailUserUtf8Part = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+$/i;
var quotedEmailUserUtf8 = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))*$/i;
var defaultMaxEmailLength = 254;
/* eslint-enable max-len */
/* eslint-enable no-control-regex */
/**
* Validate display name according to the RFC2822: https://tools.ietf.org/html/rfc2822#appendix-A.1.2
* @param {String} display_name
*/
function validateDisplayName(display_name) {
var display_name_without_quotes = display_name.replace(/^"(.+)"$/, '$1'); // display name with only spaces is not valid
if (!display_name_without_quotes.trim()) {
return false;
} // check whether display name contains illegal character
var contains_illegal = /[\.";<>]/.test(display_name_without_quotes);
if (contains_illegal) {
// if contains illegal characters,
// must to be enclosed in double-quotes, otherwise it's not a valid display name
if (display_name_without_quotes === display_name) {
return false;
} // the quotes in display name must start with character symbol \
var all_start_with_back_slash = display_name_without_quotes.split('"').length === display_name_without_quotes.split('\\"').length;
if (!all_start_with_back_slash) {
return false;
}
}
return true;
}
function isEmail(str, options) {
assertString(str);
options = merge(options, default_email_options);
if (options.require_display_name || options.allow_display_name) {
var display_email = str.match(splitNameAddress);
if (display_email) {
var display_name = display_email[1]; // Remove display name and angle brackets to get email address
// Can be done in the regex but will introduce a ReDOS (See #1597 for more info)
str = str.replace(display_name, '').replace(/(^<|>$)/g, ''); // sometimes need to trim the last space to get the display name
// because there may be a space between display name and email address
// eg. myname <address@gmail.com>
// the display name is `myname` instead of `myname `, so need to trim the last space
if (display_name.endsWith(' ')) {
display_name = display_name.slice(0, -1);
}
if (!validateDisplayName(display_name)) {
return false;
}
} else if (options.require_display_name) {
return false;
}
}
if (!options.ignore_max_length && str.length > defaultMaxEmailLength) {
return false;
}
var parts = str.split('@');
var domain = parts.pop();
var lower_domain = domain.toLowerCase();
if (options.host_blacklist.includes(lower_domain)) {
return false;
}
if (options.host_whitelist.length > 0 && !options.host_whitelist.includes(lower_domain)) {
return false;
}
var user = parts.join('@');
if (options.domain_specific_validation && (lower_domain === 'gmail.com' || lower_domain === 'googlemail.com')) {
/*
Previously we removed dots for gmail addresses before validating.
This was removed because it allows `multiple..dots@gmail.com`
to be reported as valid, but it is not.
Gmail only normalizes single dots, removing them from here is pointless,
should be done in normalizeEmail
*/
user = user.toLowerCase(); // Removing sub-address from username before gmail validation
var username = user.split('+')[0]; // Dots are not included in gmail length restriction
if (!isByteLength(username.replace(/\./g, ''), {
min: 6,
max: 30
})) {
return false;
}
var _user_parts = username.split('.');
for (var i = 0; i < _user_parts.length; i++) {
if (!gmailUserPart.test(_user_parts[i])) {
return false;
}
}
}
if (options.ignore_max_length === false && (!isByteLength(user, {
max: 64
}) || !isByteLength(domain, {
max: 254
}))) {
return false;
}
if (!isFQDN(domain, {
require_tld: options.require_tld,
ignore_max_length: options.ignore_max_length
})) {
if (!options.allow_ip_domain) {
return false;
}
if (!isIP(domain)) {
if (!domain.startsWith('[') || !domain.endsWith(']')) {
return false;
}
var noBracketdomain = domain.slice(1, -1);
if (noBracketdomain.length === 0 || !isIP(noBracketdomain)) {
return false;
}
}
}
if (user[0] === '"') {
user = user.slice(1, user.length - 1);
return options.allow_utf8_local_part ? quotedEmailUserUtf8.test(user) : quotedEmailUser.test(user);
}
var pattern = options.allow_utf8_local_part ? emailUserUtf8Part : emailUserPart;
var user_parts = user.split('.');
for (var _i = 0; _i < user_parts.length; _i++) {
if (!pattern.test(user_parts[_i])) {
return false;
}
}
if (options.blacklisted_chars) {
if (user.search(new RegExp("[".concat(options.blacklisted_chars, "]+"), 'g')) !== -1) return false;
}
return true;
}
n4s.enforce.extend({ isEmail });
}));
//# sourceMappingURL=email.development.js.map