how to validate a file name at upload in zend framework?

Question

i an trying to upload a file and i need it to contain only letters, numbers and _

here is my code

    $regex = new Zend_Validate_Regex('/^[a-zA-Z0-9_.]+$/i');
    $regex->setMessages(array(
        Zend_Validate_Regex::NOT_MATCH => 'NOT MATCH - File name can only contain letters, numbers and underscores',
        Zend_Validate_Regex::INVALID   => 'INVALID - File name can only contain letters, numbers and underscores',
        Zend_Validate_Regex::ERROROUS  => 'ERROR - File name can only contain letters, numbers and underscores'
    ));

    $file = new Zend_Form_Element_File('file');
    $file->setRequired(TRUE)
        ->setDestination($path)
        ->addValidator('Size', FALSE, array('min' => '10kB', 'max' => '100MB'))
        ->addValidator('Extension', FALSE, 'avi,mov,wmv,mpeg,flv,mpg,mp4')
        ->addValidator($regex)
        ->getValidator('Upload')->setMessage('No file selected');
    $file->removeDecorator('DtDdWrapper');
    $file->removeDecorator('HtmlTag');
    $file->getDecorator('Label')->setTag(NULL);

i want this file to pass: test_test.jpeg

but not this one: test test.jpeg

the issue i am having is that even if the file name is OK the validator still throws the NOT_MATCH error

i even allowed . in case the file name is the entire file name string

any ideas?

Well maybe the filename isn't stored as 'test_test.jpg' but as 'c:\fakepath\test_test.jpg'? — Dillen Meijboom
– Dillen Meijboom, Commented Feb 13, 2014 at 23:33
good point, that seems to be the issue, but i still need to validate the file name only. not sure how to do that — Patrioticcow
– Patrioticcow, Commented Feb 13, 2014 at 23:41

tommoyang · Accepted Answer · 2014-02-14 00:44:35Z

1

/^(.*/)?[a-zA-Z0-9_.]*?\.[a-zA-Z0-9_]*?$/i

Get rid of everything past the "\." if you don't require an extension. Otherwise, this should work for both full path and file-only names

answered Feb 14, 2014 at 0:44

tommoyang

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