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EgoAleSum authored and EgoAleSum committed Sep 25, 2016
1 parent c047210 commit 309a530
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105 changes: 96 additions & 9 deletions lib/normalizeEmail.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,32 +16,119 @@ var _merge2 = _interopRequireDefault(_merge);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var default_normalize_email_options = {
lowercase: true,
remove_dots: true,
remove_extension: true
// The following options apply to all email addresses
// Lowercases the local part of the email address.
// Please note this may violate RFC 5321 as per http://stackoverflow.com/a/9808332/192024).
// The domain is always lowercased, as per RFC 1035
all_lowercase: true,

// The following conversions are specific to GMail
// Lowercases the local part of the GMail address (known to be case-insensitive)
gmail_lowercase: true,
// Removes dots from the local part of the email address, as that's ignored by GMail
gmail_remove_dots: true,
// Removes the subaddress (e.g. "+foo") from the email address
gmail_remove_subaddress: true,
// Conversts the googlemail.com domain to gmail.com
gmail_convert_googlemaildotcom: true,

// The following conversions are specific to Outlook.com / Windows Live / Hotmail
// Lowercases the local part of the Outlook.com address (known to be case-insensitive)
outlookdotcom_lowercase: true,
// Removes the subaddress (e.g. "+foo") from the email address
outlookdotcom_remove_subaddress: true,

// The following conversions are specific to Yahoo
// Lowercases the local part of the Yahoo address (known to be case-insensitive)
yahoo_lowercase: true,
// Removes the subaddress (e.g. "-foo") from the email address
yahoo_remove_subaddress: true,

// The following conversions are specific to iCloud
// Lowercases the local part of the iCloud address (known to be case-insensitive)
icloud_lowercase: true,
// Removes the subaddress (e.g. "+foo") from the email address
icloud_remove_subaddress: true
};

// List of domains used by iCloud
var icloud_domains = ['icloud.com', 'me.com'];

// List of domains used by Outlook.com and its predecessors
// This list is likely incomplete.
// Partial reference:
// https://blogs.office.com/2013/04/17/outlook-com-gets-two-step-verification-sign-in-by-alias-and-new-international-domains/
var outlookdotcom_domains = ['hotmail.at', 'hotmail.be', 'hotmail.ca', 'hotmail.cl', 'hotmail.co.il', 'hotmail.co.nz', 'hotmail.co.th', 'hotmail.co.uk', 'hotmail.com', 'hotmail.com.ar', 'hotmail.com.au', 'hotmail.com.br', 'hotmail.com.gr', 'hotmail.com.mx', 'hotmail.com.pe', 'hotmail.com.tr', 'hotmail.com.vn', 'hotmail.cz', 'hotmail.de', 'hotmail.dk', 'hotmail.es', 'hotmail.fr', 'hotmail.hu', 'hotmail.id', 'hotmail.ie', 'hotmail.in', 'hotmail.it', 'hotmail.jp', 'hotmail.kr', 'hotmail.lv', 'hotmail.my', 'hotmail.ph', 'hotmail.pt', 'hotmail.sa', 'hotmail.sg', 'hotmail.sk', 'live.be', 'live.co.uk', 'live.com', 'live.com.ar', 'live.com.mx', 'live.de', 'live.es', 'live.eu', 'live.fr', 'live.it', 'live.nl', 'msn.com', 'outlook.at', 'outlook.be', 'outlook.cl', 'outlook.co.il', 'outlook.co.nz', 'outlook.co.th', 'outlook.com', 'outlook.com.ar', 'outlook.com.au', 'outlook.com.br', 'outlook.com.gr', 'outlook.com.pe', 'outlook.com.tr', 'outlook.com.vn', 'outlook.cz', 'outlook.de', 'outlook.dk', 'outlook.es', 'outlook.fr', 'outlook.hu', 'outlook.id', 'outlook.ie', 'outlook.in', 'outlook.it', 'outlook.jp', 'outlook.kr', 'outlook.lv', 'outlook.my', 'outlook.ph', 'outlook.pt', 'outlook.sa', 'outlook.sg', 'outlook.sk', 'passport.com'];

// List of domains used by Yahoo Mail
// This list is likely incomplete
var yahoo_domains = ['rocketmail.com', 'yahoo.ca', 'yahoo.co.uk', 'yahoo.com', 'yahoo.de', 'yahoo.fr', 'yahoo.in', 'yahoo.it', 'ymail.com'];

function normalizeEmail(email, options) {
options = (0, _merge2.default)(options, default_normalize_email_options);

if (!(0, _isEmail2.default)(email)) {
return false;
}
var parts = email.split('@', 2);

// The domain is always lowercased, as it's case-insensitive per RFC 1035
parts[1] = parts[1].toLowerCase();

if (parts[1] === 'gmail.com' || parts[1] === 'googlemail.com') {
if (options.remove_extension) {
// Address is GMail
if (options.gmail_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (options.remove_dots) {
if (options.gmail_remove_dots) {
parts[0] = parts[0].replace(/\./g, '');
}
if (!parts[0].length) {
return false;
}
parts[0] = parts[0].toLowerCase();
parts[1] = 'gmail.com';
} else if (options.lowercase) {
parts[0] = parts[0].toLowerCase();
if (options.all_lowercase || options.gmail_lowercase) {
parts[0] = parts[0].toLowerCase();
}
parts[1] = options.gmail_convert_googlemaildotcom ? 'gmail.com' : parts[1];
} else if (~icloud_domains.indexOf(parts[1])) {
// Address is iCloud
if (options.icloud_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.icloud_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else if (~outlookdotcom_domains.indexOf(parts[1])) {
// Address is Outlook.com
if (options.outlookdotcom_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.outlookdotcom_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else if (~yahoo_domains.indexOf(parts[1])) {
// Address is Yahoo
if (options.yahoo_remove_subaddress) {
var components = parts[0].split('-');
parts[0] = components.length > 1 ? components.slice(0, -1).join('-') : components[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.yahoo_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else {
// Any other address
if (options.all_lowercase) {
parts[0] = parts[0].toLowerCase();
}
}
return parts.join('@');
}
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105 changes: 96 additions & 9 deletions validator.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1112,32 +1112,119 @@
}

var default_normalize_email_options = {
lowercase: true,
remove_dots: true,
remove_extension: true
// The following options apply to all email addresses
// Lowercases the local part of the email address.
// Please note this may violate RFC 5321 as per http://stackoverflow.com/a/9808332/192024).
// The domain is always lowercased, as per RFC 1035
all_lowercase: true,

// The following conversions are specific to GMail
// Lowercases the local part of the GMail address (known to be case-insensitive)
gmail_lowercase: true,
// Removes dots from the local part of the email address, as that's ignored by GMail
gmail_remove_dots: true,
// Removes the subaddress (e.g. "+foo") from the email address
gmail_remove_subaddress: true,
// Conversts the googlemail.com domain to gmail.com
gmail_convert_googlemaildotcom: true,

// The following conversions are specific to Outlook.com / Windows Live / Hotmail
// Lowercases the local part of the Outlook.com address (known to be case-insensitive)
outlookdotcom_lowercase: true,
// Removes the subaddress (e.g. "+foo") from the email address
outlookdotcom_remove_subaddress: true,

// The following conversions are specific to Yahoo
// Lowercases the local part of the Yahoo address (known to be case-insensitive)
yahoo_lowercase: true,
// Removes the subaddress (e.g. "-foo") from the email address
yahoo_remove_subaddress: true,

// The following conversions are specific to iCloud
// Lowercases the local part of the iCloud address (known to be case-insensitive)
icloud_lowercase: true,
// Removes the subaddress (e.g. "+foo") from the email address
icloud_remove_subaddress: true
};

// List of domains used by iCloud
var icloud_domains = ['icloud.com', 'me.com'];

// List of domains used by Outlook.com and its predecessors
// This list is likely incomplete.
// Partial reference:
// https://blogs.office.com/2013/04/17/outlook-com-gets-two-step-verification-sign-in-by-alias-and-new-international-domains/
var outlookdotcom_domains = ['hotmail.at', 'hotmail.be', 'hotmail.ca', 'hotmail.cl', 'hotmail.co.il', 'hotmail.co.nz', 'hotmail.co.th', 'hotmail.co.uk', 'hotmail.com', 'hotmail.com.ar', 'hotmail.com.au', 'hotmail.com.br', 'hotmail.com.gr', 'hotmail.com.mx', 'hotmail.com.pe', 'hotmail.com.tr', 'hotmail.com.vn', 'hotmail.cz', 'hotmail.de', 'hotmail.dk', 'hotmail.es', 'hotmail.fr', 'hotmail.hu', 'hotmail.id', 'hotmail.ie', 'hotmail.in', 'hotmail.it', 'hotmail.jp', 'hotmail.kr', 'hotmail.lv', 'hotmail.my', 'hotmail.ph', 'hotmail.pt', 'hotmail.sa', 'hotmail.sg', 'hotmail.sk', 'live.be', 'live.co.uk', 'live.com', 'live.com.ar', 'live.com.mx', 'live.de', 'live.es', 'live.eu', 'live.fr', 'live.it', 'live.nl', 'msn.com', 'outlook.at', 'outlook.be', 'outlook.cl', 'outlook.co.il', 'outlook.co.nz', 'outlook.co.th', 'outlook.com', 'outlook.com.ar', 'outlook.com.au', 'outlook.com.br', 'outlook.com.gr', 'outlook.com.pe', 'outlook.com.tr', 'outlook.com.vn', 'outlook.cz', 'outlook.de', 'outlook.dk', 'outlook.es', 'outlook.fr', 'outlook.hu', 'outlook.id', 'outlook.ie', 'outlook.in', 'outlook.it', 'outlook.jp', 'outlook.kr', 'outlook.lv', 'outlook.my', 'outlook.ph', 'outlook.pt', 'outlook.sa', 'outlook.sg', 'outlook.sk', 'passport.com'];

// List of domains used by Yahoo Mail
// This list is likely incomplete
var yahoo_domains = ['rocketmail.com', 'yahoo.ca', 'yahoo.co.uk', 'yahoo.com', 'yahoo.de', 'yahoo.fr', 'yahoo.in', 'yahoo.it', 'ymail.com'];

function normalizeEmail(email, options) {
options = merge(options, default_normalize_email_options);

if (!isEmail(email)) {
return false;
}
var parts = email.split('@', 2);

// The domain is always lowercased, as it's case-insensitive per RFC 1035
parts[1] = parts[1].toLowerCase();

if (parts[1] === 'gmail.com' || parts[1] === 'googlemail.com') {
if (options.remove_extension) {
// Address is GMail
if (options.gmail_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (options.remove_dots) {
if (options.gmail_remove_dots) {
parts[0] = parts[0].replace(/\./g, '');
}
if (!parts[0].length) {
return false;
}
parts[0] = parts[0].toLowerCase();
parts[1] = 'gmail.com';
} else if (options.lowercase) {
parts[0] = parts[0].toLowerCase();
if (options.all_lowercase || options.gmail_lowercase) {
parts[0] = parts[0].toLowerCase();
}
parts[1] = options.gmail_convert_googlemaildotcom ? 'gmail.com' : parts[1];
} else if (~icloud_domains.indexOf(parts[1])) {
// Address is iCloud
if (options.icloud_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.icloud_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else if (~outlookdotcom_domains.indexOf(parts[1])) {
// Address is Outlook.com
if (options.outlookdotcom_remove_subaddress) {
parts[0] = parts[0].split('+')[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.outlookdotcom_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else if (~yahoo_domains.indexOf(parts[1])) {
// Address is Yahoo
if (options.yahoo_remove_subaddress) {
var components = parts[0].split('-');
parts[0] = components.length > 1 ? components.slice(0, -1).join('-') : components[0];
}
if (!parts[0].length) {
return false;
}
if (options.all_lowercase || options.yahoo_lowercase) {
parts[0] = parts[0].toLowerCase();
}
} else {
// Any other address
if (options.all_lowercase) {
parts[0] = parts[0].toLowerCase();
}
}
return parts.join('@');
}
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