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Feature/check email max length #1007

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merged 4 commits into from
May 23, 2019
Merged

Feature/check email max length #1007

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3b537ea
check for standard email max length
AMRALAA10 Mar 27, 2019
d61e70b
update readme file with the new email option
AMRALAA10 Mar 27, 2019
8c6729e
fix code styling
AMRALAA10 Mar 27, 2019
5d57d1b
fix test failing case, emails with length more than 254 should be inv…
AMRALAA10 Mar 28, 2019
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -90,7 +90,7 @@ Validator | Description
**isMagnetURI(str)** | check if the string is a [magnet uri format](https://en.wikipedia.org/wiki/Magnet_URI_scheme).
**isDecimal(str [, options])** | check if the string represents a decimal number, such as 0.1, .3, 1.1, 1.00003, 4.0, etc.<br/><br/>`options` is an object which defaults to `{force_decimal: false, decimal_digits: '1,', locale: 'en-US'}`<br/><br/>`locale` determine the decimal separator and is one of `['ar', 'ar-AE', 'ar-BH', 'ar-DZ', 'ar-EG', 'ar-IQ', 'ar-JO', 'ar-KW', 'ar-LB', 'ar-LY', 'ar-MA', 'ar-QA', 'ar-QM', 'ar-SA', 'ar-SD', 'ar-SY', 'ar-TN', 'ar-YE', 'bg-BG', 'cs-CZ', 'da-DK', 'de-DE', 'en-AU', 'en-GB', 'en-HK', 'en-IN', 'en-NZ', 'en-US', 'en-ZA', 'en-ZM', 'es-ES', 'fr-FR', 'hu-HU', 'it-IT', 'ku-IQ', nb-NO', 'nl-NL', 'nn-NO', 'pl-PL', 'pt-BR', 'pt-PT', 'ru-RU', 'sl-SI', 'sr-RS', 'sr-RS@latin', 'sv-SE', 'tr-TR', 'uk-UA']`.<br/>**Note:** `decimal_digits` is given as a range like '1,3', a specific value like '3' or min like '1,'.
**isDivisibleBy(str, number)** | check if the string is a number that's divisible by another.
**isEmail(str [, options])** | check if the string is an email.<br/><br/>`options` is an object which defaults to `{ allow_display_name: false, require_display_name: false, allow_utf8_local_part: true, require_tld: true, allow_ip_domain: false, domain_specific_validation: false }`. If `allow_display_name` is set to true, the validator will also match `Display Name <email-address>`. If `require_display_name` is set to true, the validator will reject strings without the format `Display Name <email-address>`. If `allow_utf8_local_part` is set to false, the validator will not allow any non-English UTF8 character in email address' local part. If `require_tld` is set to false, e-mail addresses without having TLD in their domain will also be matched. If `allow_ip_domain` is set to true, the validator will allow IP addresses in the host part. If `domain_specific_validation` is true, some additional validation will be enabled, e.g. disallowing certain syntactically valid email addresses that are rejected by GMail.
**isEmail(str [, options])** | check if the string is an email.<br/><br/>`options` is an object which defaults to `{ allow_display_name: false, require_display_name: false, allow_utf8_local_part: true, require_tld: true, allow_ip_domain: false, domain_specific_validation: false }`. If `allow_display_name` is set to true, the validator will also match `Display Name <email-address>`. If `require_display_name` is set to true, the validator will reject strings without the format `Display Name <email-address>`. If `allow_utf8_local_part` is set to false, the validator will not allow any non-English UTF8 character in email address' local part. If `require_tld` is set to false, e-mail addresses without having TLD in their domain will also be matched. If `ignore_max_length` is set to true, the validator will not check for the standard max length of an email. If `allow_ip_domain` is set to true, the validator will allow IP addresses in the host part. If `domain_specific_validation` is true, some additional validation will be enabled, e.g. disallowing certain syntactically valid email addresses that are rejected by GMail.
**isEmpty(str [, options])** | check if the string has a length of zero.<br/><br/>`options` is an object which defaults to `{ ignore_whitespace:false }`.
**isFQDN(str [, options])** | check if the string is a fully qualified domain name (e.g. domain.com).<br/><br/>`options` is an object which defaults to `{ require_tld: true, allow_underscores: false, allow_trailing_dot: false }`.
**isFloat(str [, options])** | check if the string is a float.<br/><br/>`options` is an object which can contain the keys `min`, `max`, `gt`, and/or `lt` to validate the float is within boundaries (e.g. `{ min: 7.22, max: 9.55 }`) it also has `locale` as an option.<br/><br/>`min` and `max` are equivalent to 'greater or equal' and 'less or equal', respectively while `gt` and `lt` are their strict counterparts.<br/><br/>`locale` determine the decimal separator and is one of `['ar', 'ar-AE', 'ar-BH', 'ar-DZ', 'ar-EG', 'ar-IQ', 'ar-JO', 'ar-KW', 'ar-LB', 'ar-LY', 'ar-MA', 'ar-QA', 'ar-QM', 'ar-SA', 'ar-SD', 'ar-SY', 'ar-TN', 'ar-YE', 'bg-BG', 'cs-CZ', 'da-DK', 'de-DE', 'en-AU', 'en-GB', 'en-HK', 'en-IN', 'en-NZ', 'en-US', 'en-ZA', 'en-ZM', 'es-ES', 'fr-FR', 'hu-HU', 'it-IT', 'nb-NO', 'nl-NL', 'nn-NO', 'pl-PL', 'pt-BR', 'pt-PT', 'ru-RU', 'sl-SI', 'sr-RS', 'sr-RS@latin', 'sv-SE', 'tr-TR', 'uk-UA']`. Locale list is `validator.isFloatLocales`.
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5 changes: 5 additions & 0 deletions lib/isEmail.js
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Expand Up @@ -33,6 +33,7 @@ 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 */
Expand All @@ -51,6 +52,10 @@ function isEmail(str, options) {
}
}

if (!options.ignore_max_length && str.length > defaultMaxEmailLength) {
return false;
}

var parts = str.split('@');
var domain = parts.pop();
var user = parts.join('@');
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4 changes: 4 additions & 0 deletions src/lib/isEmail.js
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Expand Up @@ -20,6 +20,7 @@ const gmailUserPart = /^[a-z\d]+$/;
const quotedEmailUser = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f]))*$/i;
const emailUserUtf8Part = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+$/i;
const quotedEmailUserUtf8 = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))*$/i;
const defaultMaxEmailLength = 254;
/* eslint-enable max-len */
/* eslint-enable no-control-regex */

Expand All @@ -35,6 +36,9 @@ export default function isEmail(str, options) {
return false;
}
}
if (!options.ignore_max_length && str.length > defaultMaxEmailLength) {
return false;
}

const parts = str.split('@');
const domain = parts.pop();
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2 changes: 1 addition & 1 deletion test/validators.js
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Expand Up @@ -61,7 +61,6 @@ describe('Validators', () => {
'" foo m端ller "@example.com',
'"foo\\@bar"@example.com',
`${repeat('a', 64)}@${repeat('a', 63)}.com`,
`${repeat('a', 64)}@${repeat('a', 63)}.${repeat('a', 63)}.${repeat('a', 63)}.${repeat('a', 58)}.com`,
`${repeat('a', 64)}@${repeat('a', 63)}.com`,
`${repeat('a', 31)}@gmail.com`,
'[email protected]',
Expand All @@ -79,6 +78,7 @@ describe('Validators', () => {
`${repeat('a', 64)}@${repeat('a', 251)}.com`,
`${repeat('a', 65)}@${repeat('a', 250)}.com`,
`${repeat('a', 64)}@${repeat('a', 64)}.com`,
`${repeat('a', 64)}@${repeat('a', 63)}.${repeat('a', 63)}.${repeat('a', 63)}.${repeat('a', 58)}.com`,
'[email protected] m',
'[email protected] m',
'[email protected] m',
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