Congegni/sintonia
7
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

CC-5862: Invalid UTF-8 chars cause DB error

Browse source 
* Strip and validate UTF-8 strings in the Media API
* Also properly parse track numbers containing "-"
This commit is contained in:
Albert Santoni 2014-05-30 13:02:19 -04:00
parent 7caa42cf69
commit 1373d4984f
2 changed files with 30 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

25
airtime_mvc/application/modules/rest/controllers/MediaController.php
View file

@ -402,10 +402,15 @@ class Rest_MediaController extends Zend_Rest_Controller
if ($stringLengthValidator) {
$value = substr($value, 0, $stringLengthValidator->getMax());
}
$value = $this->stripInvalidUtf8Characters($value);
}
}
if (!$fileForm->isValidPartial($whiteList)) {
$errors = $fileForm->getErrors();
$messages = $fileForm->getMessages();
Logging::error($messages);
$file->setDbImportStatus(2);
$file->setDbHidden(true);
$this->invalidDataResponse();
@ -526,5 +531,25 @@ class Rest_MediaController extends Zend_Rest_Controller
}
return $metadata;
}
private function stripInvalidUtf8Characters($string)
{
//Remove invalid UTF-8 characters
//reject overly long 2 byte sequences, as well as characters above U+10000 and replace with ?
$string = preg_replace('/[\x00-\x08\x10\x0B\x0C\x0E-\x19\x7F]'.
'|[\x00-\x7F][\x80-\xBF]+'.
'|([\xC0\xC1]|[\xF0-\xFF])[\x80-\xBF]*'.
'|[\xC2-\xDF]((?![\x80-\xBF])|[\x80-\xBF]{2,})'.
'|[\xE0-\xEF](([\x80-\xBF](?![\x80-\xBF]))|(?![\x80-\xBF]{2})|[\x80-\xBF]{3,})/S',
'?', $string );
//reject overly long 3 byte sequences and UTF-16 surrogates and replace with ?
$string = preg_replace('/\xE0[\x80-\x9F][\x80-\xBF]'.
'|\xED[\xA0-\xBF][\x80-\xBF]/S','?', $string );
//Do a final encoding conversion to
$string = mb_convert_encoding($string, 'UTF-8', 'UTF-8');
return $string;
}
}