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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = isEmail;
var _assertString = _interopRequireDefault(require("./util/assertString"));
var _merge = _interopRequireDefault(require("./util/merge"));
var _isByteLength = _interopRequireDefault(require("./isByteLength"));
var _isFQDN = _interopRequireDefault(require("./isFQDN"));
var _isIP = _interopRequireDefault(require("./isIP"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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]))*$/i;
var defaultMaxEmailLength = 254;
/* eslint-enable max-len */
/* eslint-enable no-control-regex */
/**
* Validate display name according to the RFC2822: https://tools.ietf.org/html/rfc2822#appendix-A.1.2
* @param {String} display_name
*/
function validateDisplayName(display_name) {
var display_name_without_quotes = display_name.replace(/^"(.+)"$/, '$1'); // display name with only spaces is not valid
if (!display_name_without_quotes.trim()) {
return false;
} // check whether display name contains illegal character
var contains_illegal = /[\.";<>]/.test(display_name_without_quotes);
if (contains_illegal) {
// if contains illegal characters,
// must to be enclosed in double-quotes, otherwise it's not a valid display name
if (display_name_without_quotes === display_name) {
return false;
} // the quotes in display name must start with character symbol \
var all_start_with_back_slash = display_name_without_quotes.split('"').length === display_name_without_quotes.split('\\"').length;
if (!all_start_with_back_slash) {
return false;
}
}
return true;
}
function isEmail(str, options) {
(0, _assertString.default)(str);
options = (0, _merge.default)(options, default_email_options);
if (options.require_display_name || options.allow_display_name) {
var display_email = str.match(splitNameAddress);
if (display_email) {
var display_name = display_email[1]; // Remove display name and angle brackets to get email address
// Can be done in the regex but will introduce a ReDOS (See #1597 for more info)
str = str.replace(display_name, '').replace(/(^<|>$)/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 (!(0, _isByteLength.default)(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 && (!(0, _isByteLength.default)(user, {
max: 64
}) || !(0, _isByteLength.default)(domain, {
max: 254
}))) {
return false;
}
if (!(0, _isFQDN.default)(domain, {
require_tld: options.require_tld,
ignore_max_length: options.ignore_max_length
})) {
if (!options.allow_ip_domain) {
return false;
}
if (!(0, _isIP.default)(domain)) {
if (!domain.startsWith('[') || !domain.endsWith(']')) {
return false;
}
var noBracketdomain = domain.slice(1, -1);
if (noBracketdomain.length === 0 || !(0, _isIP.default)(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;
}
module.exports = exports.default;
module.exports.default = exports.default;
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