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59 lines
2.6 KiB
TypeScript
59 lines
2.6 KiB
TypeScript
import {Pattern} from "@lion/form-core";
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export class IsEmail extends Pattern
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{
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/**
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* Regexes for validating email addresses incl. email in angle-brackets eg.
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* + "Ralf Becker <rb@egroupware.org>"
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* + "Ralf Becker (EGroupware GmbH) <rb@egroupware.org>"
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* + "<rb@egroupware.org>" or "rb@egroupware.org"
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* + '"Becker, Ralf" <rb@egroupware.org>'
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* + "'Becker, Ralf' <rb@egroupware.org>"
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* but NOT:
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* - "Becker, Ralf <rb@egroupware.org>" (contains comma outside " or ' enclosed block)
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* - "Becker < Ralf <rb@egroupware.org>" (contains < ----------- " ---------------)
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*
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* About umlaut or IDN domains: we currently only allow German umlauts in domain part!
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* We forbid all non-ascii chars in local part, as Horde does not yet support SMTPUTF8 extension (rfc6531)
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* and we get a "SMTP server does not support internationalized header data" error otherwise.
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*
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* Using \042 instead of " to NOT stall minifyer!
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*
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* Similar, but not identical, preg is in Etemplate\Widget\Url PHP class!
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* We can not use "(?<![.\s])", used to check that name-part does not end in
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* a dot or white-space. The expression is valid in recent Chrome, but fails
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* eg. in Safari 11.0 or node.js 4.8.3 and therefore grunt uglify!
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* Server-side will fail in that case because it uses the full regexp.
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*/
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static EMAIL_PREG : RegExp = /^(([^\042',<][^,<]+|\042[^\042]+\042|\'[^\']+\'|"(?:[^"\\]|\\.)*")\s?<)?[^\x00-\x20()\xe2\x80\x8b<>@,;:\042\[\]\x80-\xff]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,}>?$/i;
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/**
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* Allow everything containing at least one placeholder e.g.:
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* - "{{email}}"
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* - "{{n_fn}} <{{email}}"
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* - "{{#<custom-field-name>}}"
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* - "{{info_contact/email}}" or "{{user/#<custom-field-name}}"
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* - we do NOT check if the placeholder is implemented by addressbook or a valid custom-field name!
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* - "test" or "{test}}" are NOT valid
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*/
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static EMAIL_PLACEHOLDER_PREG = new RegExp('^(.*{{[a-z0-9_/#]+}}.*|'+IsEmail.EMAIL_PREG.source.substr(1, IsEmail.EMAIL_PREG.source.length-2)+')$', 'i');
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/**
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*
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* @param _allowPlaceholders true: allow valid email-addresses OR something with placeholder(s)
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*/
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constructor(_allowPlaceholders: boolean)
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{
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super(_allowPlaceholders ? IsEmail.EMAIL_PLACEHOLDER_PREG : IsEmail.EMAIL_PREG);
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}
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/**
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* Give a message about this field being required. Could be customised according to MessageData.
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* @param {MessageData | undefined} data
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* @returns {Promise<string>}
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*/
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static async getMessage(data)
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{
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return data.formControl.egw().lang("Invalid email") + (data.modelValue ? ' "' + data.modelValue + '"' : "");
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}
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} |