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###############################################################################


# Package name
package Apache::AuthzCache;


# Required libraries
use strict;
use mod_perl ();
use Apache::Constants qw(OK AUTH_REQUIRED DECLINED DONE);
use Apache::Log;
use Cache::FileCache;
use Text::ParseWords;
use Time::Object;


# Global constants
use constant REQUIRE_OPTS => { 'inagroup'     => 1,
			       'inmanygroups' => 2,
			       'inallgroups'  => 3 };


# Global variables
$Apache::AuthzCache::VERSION = '1.01';


###############################################################################
###############################################################################
# handler: hook into Apache/mod_perl API
###############################################################################
###############################################################################
sub handler {
  my $r = shift;
  return OK unless $r->is_initial_req; # only the first internal request
  my $requires = $r->requires;
  return OK unless $requires;
  my $require_groups = undef;

  # Get configuration
  my $casesensitive = $r->dir_config('AuthzCache_CaseSensitive') || 'on';
  my $cache_time_limit = $r->dir_config('AuthzCache_CacheTime') ||
    $r->dir_config('AuthzCache_Timeout') || $Cache::Cache::EXPIRES_NEVER;
  my $cache_dir = $r->dir_config('AuthzCache_Directory') || '/tmp';
  my $cache_umask = $r->dir_config('AuthzCache_Umask') || '007';
  my $auth_name = $r->auth_name;
  my $requirement = $r->dir_config('AuthzRequire') || 'inAGroup';
  $r->log->debug("manage_cache: cache_time_limit=$cache_time_limit, ",
		 "cache_dir=$cache_dir, cache_umask=$cache_umask, ",
		 "auth_name=$auth_name");
  $requirement = REQUIRE_OPTS->{lc($requirement)} || 1;