Disable backslash escaping in "is allowed" helper

[mnastalski]

allowIn will fail to match files on Windows without the FNM_NOESCAPE flag

[spaze]

Thanks. can you explain the bug you're seeing? Does this change fix it?

Because I have a test that compares Windows paths

phpstan-disallowed-calls/tests/IsAllowedFileHelperTest.php

Lines 84 to 88 in cc97bfb

	yield [
	'\\src\\foo\\bar\\',
	__DIR__ . '/src/foo/bar',
	'/foo/bar/src/foo/bar',
	];

The matches() method calls absolutizePath() which calls normalizePath() which normalizes paths:
https://github.com/phpstan/phpstan-src/blob/e5c1a594aa87df3a174afed58a1ef5a6cefe8d49/src/File/FileHelper.php#L77

[mnastalski]

Sure! Yes, the change does fix the issue.

My config is something like this:

    disallowedFunctionCalls:
        -
            function: 'foo()'
            message: 'use bar() instead'
            allowIn:
                - app/Models/Foo.php

When I run phpstan for Foo.php on a Windows machine I get:

 ------ ------------------------------------------------ 
  Line   Foo.php
 ------ ------------------------------------------------ 
  X      Calling foo() is forbidden, use bar() instead  
  Y      Calling foo() is forbidden, use bar() instead  

Adding FNM_NOESCAPE flag like in the PR makes phpstan pass:

[OK] No errors

[mnastalski]

As for the tests, they also seem a bit problematic on Windows (this is on PHP 8.1.3):

FFFF...FFFFFFF.................FFFF..FF.FFF.F                     45 / 45 (100%)

FAILURES!
Tests: 45, Assertions: 50, Failures: 21.

Log: https://gist.github.com/mnastalski/aebfe41bbfb6ae56ccdadb781c5d0ee0

If I add the flag the amount of errors is much lower:

...............................FFFF..F.......                     45 / 45 (100%)

There were 5 failures:

1) Spaze\PHPStan\Rules\Disallowed\IsAllowedFileHelperTest::testMatches with data set #0 ('src', 'XX\phpstan-di...ts/src', '/foo/bar/src')
Failed asserting that false is true.

XX\phpstan-disallowed-calls\tests\IsAllowedFileHelperTest.php:46

2) Spaze\PHPStan\Rules\Disallowed\IsAllowedFileHelperTest::testMatches with data set #1 ('src/*', 'XX\phpstan-di...do.php', '/foo/bar/src/waldo.php')
Failed asserting that false is true.

XX\phpstan-disallowed-calls\tests\IsAllowedFileHelperTest.php:46

3) Spaze\PHPStan\Rules\Disallowed\IsAllowedFileHelperTest::testMatches with data set #2 ('../src/*', 'XX\phpstan-di...do.php', '/foo/src/waldo.php')
Failed asserting that false is true.

XX\phpstan-disallowed-calls\tests\IsAllowedFileHelperTest.php:46

4) Spaze\PHPStan\Rules\Disallowed\IsAllowedFileHelperTest::testMatches with data set #3 ('src/foo/../*', 'XX\phpstan-di...do.php', '/foo/bar/src/waldo.php')
Failed asserting that false is true.

XX\phpstan-disallowed-calls\tests\IsAllowedFileHelperTest.php:46

5) Spaze\PHPStan\Rules\Disallowed\IsAllowedFileHelperTest::testMatches with data set #6 ('\src\foo\bar\', 'XX\phpstan-di...oo/bar', '/foo/bar/src/foo/bar')
Failed asserting that false is true.

XX\phpstan-disallowed-calls\tests\IsAllowedFileHelperTest.php:46

As you can see the Windows paths test you mentioned also fails. The first assertion (based on isAllowedHelper) will pass however, if the 2nd array value uses DIRECTORY_SEPARATOR instead of forward slashes, so for example:

		yield [
			'\\src\\foo\\bar\\',
			__DIR__ . DIRECTORY_SEPARATOR . 'src' . DIRECTORY_SEPARATOR . 'foo' . DIRECTORY_SEPARATOR . 'bar',
			'/foo/bar/src/foo/bar',
		];

I played around with the second assertion (based on isAllowedHelperWithRootDir) a bit but I couldn't make it pass

[spaze]

I see, thanks for the PR! I'll try to get tests working on Windows too, sorry it's not working now 😊

[spaze]

I have released 2.11.6 with this PR. I have started testing on Windows too so you should be fine running it on Windows too, let me know. Thanks again, not just for this PR but for bringing the whole Windows problem to my attention.

[mnastalski]

Yup, everything passes now! Thanks!