Perrin Harkins wrote:
> Geoffrey Young wrote:
>
>>actually, REDIRECT is an alias for HTTP_MOVED_TEMPORARILY. from
>>modperl_constants.c:
>>
>> if (strEQ(name, "REDIRECT")) {
>> return newSViv(HTTP_MOVED_TEMPORARILY);
>> }
>
>
> Isn't that basically a coincidence though? I thought the non-HTTP
> constants were subject to change at any time, which is why they're defined
> in the core instead of hard-coding numbers in scripts.
in this specific case it's historical. httpd-1.3.X did this in httpd.h:
#define HTTP_MOVED_TEMPORARILY 302
...
#define REDIRECT HTTP_MOVED_TEMPORARILY
#define USE_LOCAL_COPY HTTP_NOT_MODIFIED
#define BAD_REQUEST HTTP_BAD_REQUEST
#define AUTH_REQUIRED HTTP_UNAUTHORIZED
...
and mp1 passed all these along.
httpd-2.0 did away with REDIRECT as a constant, kinda forcing everyone
to use the HTTP_* form of things. early on in mp2 construction enough
people complained that we added mod_perl-specific aliases for the most
common of the old httpd-1.0-style constants (REDIRECT, SERVER_ERROR,
etc) to make the transition easier.
so, in short, REDIRECT is valid and officially equivalent to 302 in
apache 1.0, but in apache 2.0 it's not so we've faked it in mod_perl
land for the sake of our users (right or wrong).
--Geoff
