[Bug 53554] Wrong case for hexadecimal percent encoding [patch]

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=53554

--- Comment #2 from Tim Starling <ts...@wikimedia.org> ---
(In reply to comment #1)
> In RFC 1738, about Uniform Resource Locators (URL)
> (http://www.rfc-editor.org/rfc/rfc1738.txt)
> 
> 
> it is written that :
> 
> >>>
> 2.2. URL Character Encoding Issues
> 
> [...]
> In addition, octets may be encoded by a character triplet consisting
> of the character "%" followed by the two hexadecimal digits (from
> "0123456789ABCDEF") which forming the hexadecimal value of the octet.
> (The characters "abcdef" may also be used in hexadecimal encodings.)
> [...]
> 
> <<<
> 
> 
> So, I guess that httpd is correct when encoding with lower case.
> 
> 
> I left the report open, just in case, but I think that it should be marked
> as FIXED, WONTFIX.

I think the RFC is pretty clear about which encoding is preferred, and it's not
the one httpd is using. You seem to be using a very loose definition of
"correct". There are two ways of doing it: one is preferred, the other is
idiosyncratic and breaks caching. It is a simple change and the patch is
attached.

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