Validator\File\MimeType open_basedir error not handled

[smartexcan]

Bug Report

Q	A
Version(s)	2.35.0

Summary

open_basedir errors are not handled in getMagicFile(), as it is trying to catch an exception, but no exception is thrown if is_file() is called on a file outside the open_basedir restriction.

Current behavior

If getMagicFile() tries to auto-discover the magic file from one of the common locations, and one of those files is not in the open_basedir restriction, an error is raised.

laminas-validator/src/File/MimeType.php

Lines 166 to 172 in 5fafe1e

	foreach ($this->magicFiles as $file) {
	try {
	$this->setMagicFile($file);
	} catch (Exception\ExceptionInterface) {
	// suppressing errors which are thrown due to open_basedir restrictions
	continue;
	}

No error handler is set when is_file() is called in setMagicFile(), so no exception gets thrown, resulting in the error propagating upward.

Warning: is_file(): open_basedir restriction in effect. File(/usr/share/misc/magic) is not within the allowed path(s): (/home/test/:/tmp:/var/tmp:/opt/alt/php81/usr/share/pear/:/dev/urandom:/usr/local/lib/php/:/usr/local/php81/lib/php/) in /home/test/public_html/vendor/laminas/laminas-validator/src/File/MimeType.php on line 208

How to reproduce

// open_basedir set as "/home/test/:/tmp:/var/tmp:/opt/alt/php81/usr/share/pear/:/dev/urandom:/usr/local/lib/php/:/usr/local/php81/lib/php/"
$mimeValidator = new \Laminas\Validator\File\MimeType([]);
$valid = $mimeValidator->isValid('/home/test/public_html/tmp/test.jpg');

Expected behavior

open_basedir error should be handled, possibly by using \Laminas\Stdlib\ErrorHandler or by other means, and exception should be caught, to allow continuing as intended.

[Ocramius]

I don't think this code should be aware of the existence of open_basedir() at all: it's an extension that messes with filesystem built-in procedures, and IMO it should not be accounted for when the built-in procedures are integrated as per their original documentation.

[smartexcan]

I suppose that is true, and it's not really my decision is there should be code to account for it in here or not.
Only submitting this issue as the code that was already implemented to handle the error didn't actually handle the error.

[gsteel]

Magic file options/usage is being removed in 3.0 - ref #340 and this issue won't be resolved in the 2.x series