Home path can't contain regular expression special chars

[akirk]

Because $home_path is used within a preg_replace without being run through preg_quote if, for example, it contains a + then it won't get stripped properly and therefore no path on the site will work.

[akirk]

Little explanation for my patch: the preg_quote could be applied at the variable definition but for code review reasons I'd suggest to make it obvious in the preg_replace that the variable used in the regular expression is quoted properly.

[johnbillion]

Thanks. It'd be good to have a unit test here too.

[akirk]

I have added 2 unit tests in rewrite.php. Maybe you'd wish to put merge them into one function and use a foreach loop to avoid code duplication.

[akirk]

Improve according to Coding Standards

[akirk]

Added patch with improved code according to coding standards.

[akirk]

Changed the test to use the more common case of a dot in the homepath.

[ocean90]

In 32708:

Parse request: Quote regular expression characters in home path.

Adds unit tests.

props akirk.
fixes #30438.