https://bz.apache.org/bugzilla/show_bug.cgi?id=70084
Bug ID: 70084
Summary: rewrite recipe for ACME challenge exemption failing
Product: Apache httpd-2
Version: 2.5-HEAD
Hardware: PC
OS: Linux
Status: NEW
Severity: minor
Priority: P2
Component: Documentation
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
The (quite useful) recipe recently added to the rewrite documentation
<https://httpd.apache.org/docs/2.4/rewrite/remapping.html#acme-exemption> seems
to have an issue with the use of $0 in the RedirectMatch:
> RedirectMatch permanent "^/(?!\.well-known/acme-challenge/)"
> "https://www.example.com/$0";
First, we will get a double leading slash due to $0 already containing this in
the matched URL-path. Further - at least in my tests on Apache/2.4.66 (Debian)
- the variable does only contain the part that could actually matched against
the regex - in this case it is only "/" for "/anything".
To fix, I came up with one of the following expressions:
> RedirectMatch permanent "^/(?!\.well-known/acme-challenge/).*"
> "https://www.example.com$0";
> RedirectMatch permanent "^/(?!\.well-known/acme-challenge/)(.*)$"
> "https://www.example.com/$1";
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