isEmail.js 2.8 KB

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  1. 'use strict';
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.default = isEmail;
  6. var _assertString = require('./util/assertString');
  7. var _assertString2 = _interopRequireDefault(_assertString);
  8. var _merge = require('./util/merge');
  9. var _merge2 = _interopRequireDefault(_merge);
  10. var _isByteLength = require('./isByteLength');
  11. var _isByteLength2 = _interopRequireDefault(_isByteLength);
  12. var _isFQDN = require('./isFQDN');
  13. var _isFQDN2 = _interopRequireDefault(_isFQDN);
  14. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  15. var default_email_options = {
  16. allow_display_name: false,
  17. require_display_name: false,
  18. allow_utf8_local_part: true,
  19. require_tld: true
  20. };
  21. /* eslint-disable max-len */
  22. /* eslint-disable no-control-regex */
  23. var displayName = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\.\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\,\.\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF\s]*<(.+)>$/i;
  24. var emailUserPart = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~]+$/i;
  25. var quotedEmailUser = /^([\s\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e]|(\\[\x01-\x09\x0b\x0c\x0d-\x7f]))*$/i;
  26. var emailUserUtf8Part = /^[a-z\d!#\$%&'\*\+\-\/=\?\^_`{\|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+$/i;
  27. 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;
  28. /* eslint-enable max-len */
  29. /* eslint-enable no-control-regex */
  30. function isEmail(str, options) {
  31. (0, _assertString2.default)(str);
  32. options = (0, _merge2.default)(options, default_email_options);
  33. if (options.require_display_name || options.allow_display_name) {
  34. var display_email = str.match(displayName);
  35. if (display_email) {
  36. str = display_email[1];
  37. } else if (options.require_display_name) {
  38. return false;
  39. }
  40. }
  41. var parts = str.split('@');
  42. var domain = parts.pop();
  43. var user = parts.join('@');
  44. var lower_domain = domain.toLowerCase();
  45. if (lower_domain === 'gmail.com' || lower_domain === 'googlemail.com') {
  46. user = user.replace(/\./g, '').toLowerCase();
  47. }
  48. if (!(0, _isByteLength2.default)(user, { max: 64 }) || !(0, _isByteLength2.default)(domain, { max: 254 })) {
  49. return false;
  50. }
  51. if (!(0, _isFQDN2.default)(domain, { require_tld: options.require_tld })) {
  52. return false;
  53. }
  54. if (user[0] === '"') {
  55. user = user.slice(1, user.length - 1);
  56. return options.allow_utf8_local_part ? quotedEmailUserUtf8.test(user) : quotedEmailUser.test(user);
  57. }
  58. var pattern = options.allow_utf8_local_part ? emailUserUtf8Part : emailUserPart;
  59. var user_parts = user.split('.');
  60. for (var i = 0; i < user_parts.length; i++) {
  61. if (!pattern.test(user_parts[i])) {
  62. return false;
  63. }
  64. }
  65. return true;
  66. }
  67. module.exports = exports['default'];