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[UTIL][Nickname] Refactor Nickname and extract a validate function, as we'll want to perform normalization in select cases in the future, likely as a plugin

This commit is contained in:
Hugo Sales 2021-07-28 21:27:48 +00:00
parent 1521d0d823
commit e250edf7fd
Signed by: someonewithpc
GPG Key ID: 7D0C7EAFC9D835A0
1 changed files with 50 additions and 42 deletions
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92
src/Util/Nickname.php
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@ -21,8 +21,7 @@
namespace App\Util;
use App\Core\DB\DB;
use App\Entity\GSActor;
use App\Entity\LocalUser;
use App\Util\Exception\NicknameBlacklistedException;
use App\Util\Exception\NicknameEmptyException;
use App\Util\Exception\NicknameException;
@ -123,6 +122,48 @@ class Nickname
*/
const BEFORE_MENTIONS = '(?:^|[\s\.\,\:\;\[\(]+)';
const CHECK_LOCAL_USER = 1;
const CHECK_LOCAL_GROUP = 2;
/**
* Check if a nickname is valid or throw exceptions if it's not.
* Can optionally check if the nickname is currently in use
*/
public static function validate(string $nickname, bool $check_already_used = false, int $which = self::CHECK_LOCAL_USER)
{
$nickname = trim($nickname);
$length = mb_strlen($nickname);
if ($length < 1) {
throw new NicknameEmptyException();
} elseif ($length < Common::config('nickname', 'min_length')) {
// dd($nickname, $length, Common::config('nickname', 'min_length'));
throw new NicknameTooShortException();
} else {
if ($length > self::MAX_LEN) {
throw new NicknameTooLongException();
} elseif (self::isReserved($nickname) || Common::isSystemPath($nickname)) {
throw new NicknameReservedException();
} elseif ($check_already_used) {
switch ($which) {
case self::CHECK_LOCAL_USER:
$lu = LocalUser::findByNicknameOrEmail($nickname, email: '');
if ($lu !== null) {
throw new NicknameTakenException($lu->getActor());
}
break;
case self::CHECK_LOCAL_GROUP:
throw new \NotImplementedException();
break;
default:
throw new \InvalidArgumentException();
}
}
}
return $nickname;
}
/**
* Normalize an input $nickname, and normalize it to its canonical form.
* The canonical form will be returned, or an exception thrown if invalid.
@ -138,31 +179,16 @@ class Nickname
*/
public static function normalize(string $nickname, bool $check_already_used = true, bool $checking_reserved = false): string
{
if (mb_strlen($nickname) > self::MAX_LEN) {
// Display forms must also fit!
throw new NicknameTooLongException();
if (!$checking_reserved) {
$nickname = self::validate($nickname, $check_already_used);
}
$nickname = trim($nickname);
// $nickname = str_replace('_', '', $nickname);
// $nickname = mb_strtolower($nickname);
// $nickname = Normalizer::normalize($nickname, Normalizer::FORM_C);
if (!$checking_reserved) {
if (mb_strlen($nickname) < 1) {
throw new NicknameEmptyException();
} elseif (mb_strlen($nickname) < Common::config('nickname', 'min_length')) {
throw new NicknameTooShortException();
} elseif (!self::isCanonical($nickname) && !filter_var($nickname, FILTER_VALIDATE_EMAIL)) {
throw new NicknameInvalidException();
} elseif (self::isReserved($nickname) || Common::isSystemPath($nickname)) {
throw new NicknameReservedException();
} elseif ($check_already_used) {
$actor = self::checkTaken($nickname);
if ($actor instanceof GSActor) {
throw new NicknameTakenException($actor);
}
}
$nickname = str_replace('_', '', $nickname);
$nickname = mb_strtolower($nickname);
$nickname = Normalizer::normalize($nickname, Normalizer::FORM_C);
if (!self::isCanonical($nickname) && !filter_var($nickname, FILTER_VALIDATE_EMAIL)) {
throw new NicknameInvalidException();
}
return $nickname;
@ -208,22 +234,4 @@ class Nickname
return self::normalize($n, check_already_used: false, checking_reserved: true);
})));
}
/**
* Is the nickname already in use locally? Checks the User table.
*
* @return null|GSActor Returns GSActor if nickname found
*/
public static function checkTaken(string $nickname): ?GSActor
{
foreach (['local_user' => 'id', 'local_group' => 'group_id'] as $table => $id_field) {
$ret = DB::dql("select a from gsactor a join {$table} t with a.id = t.{$id_field} " .
'where a.normalized_nickname = :nick', ['nick' => self::normalize($nickname, check_already_used: false)]);
if (!empty($ret)) {
return $ret[0];
}
}
return null;
}
}