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* Mail: automatic remove some invisible Unicode chars breaking email addresses: zero width space, variation selectors

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This commit is contained in:
Ralf Becker 2020-04-30 10:15:58 +02:00
parent 8e94b49cf4
commit ab20dbb70c
1 changed files with 5 additions and 1 deletions
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6
api/src/Etemplate/Widget/Url.php
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@ -32,7 +32,9 @@ class Url extends Etemplate\Widget
* but NOT: * but NOT:
* - "Becker, Ralf <rb@stylite.de>" (contains comma outside " or ' enclosed block) * - "Becker, Ralf <rb@stylite.de>" (contains comma outside " or ' enclosed block)
* - "Becker < Ralf <rb@stylite.de>" (contains < ----------- " ---------------) * - "Becker < Ralf <rb@stylite.de>" (contains < ----------- " ---------------)
* - ToDo: "\u200Bfrancesca.klein@ikem.de" (starts with a "zero width space") * automatic cleaning of common mistakes (makes no sense to complain about them, as they are not visible to the user)
* - "\u200Bfrancesca.klein@ikem.de" (starts with an unicode "zero width space")
* - "info︃@joswieg.de" (Unicode variation selector "\uFE0X" before the @, meaning eg. not to be displayed as Emotji)
* *
* About umlaut or IDN domains: we currently only allow German umlauts in domain part! * About umlaut or IDN domains: we currently only allow German umlauts in domain part!
* Client-side forbids all non-ascii chars in local part, as Horde does not yet support SMTPUTF8 extension (rfc6531) * Client-side forbids all non-ascii chars in local part, as Horde does not yet support SMTPUTF8 extension (rfc6531)
@ -119,6 +121,8 @@ class Url extends Etemplate\Widget
} }
break; break;
case 'url-email': case 'url-email':
// some automatic cleaning: unicode variation selectors, zero width space
$value = preg_replace('/[\x{FE00}-\x{FE0F}\x{200B}]/u', '', $value);
$this->attrs['preg'] = self::EMAIL_PREG; $this->attrs['preg'] = self::EMAIL_PREG;
break; break;
} }