[fw-mvc] Security concerns related to Zend_File

Hi,

I have some questions related to Zend_File validators:

1. After an upload using Zend_Form_Element_File there is any validation
of uploaded file name ? To not contain some kind of illegal characters

2. FileSize / Size validators are also validating size in relation with
ini_get('post_max_size') or $_SERVER['CONTENT_LENGTH'] or tio be sure
file is validated against 0 or negative file size ?

Thanks.

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Best regards,
Cristian Bichis
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