c = $config;
}
public function get_required_rules( $mime_types ) {
$rewrite_rules = array();
$rewrite_rules[] = array(
'filename' => Util_Rule::get_litespeed_rules_path(),
'content' => $this->generate( $mime_types )
);
if ( $this->c->get_boolean( 'browsercache.rewrite' ) ||
$this->c->get_boolean( 'browsercache.no404wp' ) ) {
$g = new BrowserCache_Environment_Apache( $this->c );
$rewrite_rules[] = array(
'filename' => Util_Rule::get_apache_rules_path(),
'content' =>
W3TC_MARKER_BEGIN_BROWSERCACHE_CACHE . "\n" .
$g->rules_rewrite() .
$g->rules_no404wp( $mime_types ) .
W3TC_MARKER_END_BROWSERCACHE_CACHE . "\n"
);
}
return $rewrite_rules;
}
/**
* Returns cache rules
*/
public function generate( $mime_types, $cdnftp = false ) {
$cssjs_types = $mime_types['cssjs'];
$cssjs_types = array_unique( $cssjs_types );
$html_types = $mime_types['html'];
$other_types = $mime_types['other'];
$other_compression_types = $mime_types['other_compression'];
$rules = '';
$rules .= W3TC_MARKER_BEGIN_BROWSERCACHE_CACHE . "\n";
$this->generate_section( $rules, $mime_types['cssjs'], 'cssjs' );
$this->generate_section( $rules, $mime_types['html'], 'html' );
$this->generate_section( $rules, $mime_types['other'], 'other' );
if ( $this->c->get_boolean( 'browsercache.rewrite' ) ) {
$core = Dispatcher::component( 'BrowserCache_Core' );
$extensions = $core->get_replace_extensions( $this->c );
$rules .= "\n";
$rules .= " RewriteCond %{REQUEST_FILENAME} !-f\n";
$rules .= ' RewriteRule ^(.+)\.(x[0-9]{5})\.(' .
implode( '|', $extensions ) . ')$ $1.$3 [L]' . "\n";
$rules .= "\n";
}
$rules .= W3TC_MARKER_END_BROWSERCACHE_CACHE . "\n";
return $rules;
}
/**
* Adds cache rules for type to &$rules.
*
* @param string $rules Rules.
* @param array $mime_types MIME types.
* @param string $section Section.
* @return void
*/
private function generate_section( &$rules, $mime_types, $section ) {
$expires = $this->c->get_boolean( 'browsercache.' . $section . '.expires' );
$cache_control = $this->c->get_boolean( 'browsercache.' . $section . '.cache.control' );
$w3tc = $this->c->get_boolean( 'browsercache.' . $section . '.w3tc' );
$last_modified = $this->c->get_boolean( 'browsercache.' . $section . '.last_modified' );
if ( $expires || $cache_control || $w3tc || ! $last_modified ) {
$mime_types2 = apply_filters(
'w3tc_browsercache_rules_section_extensions',
$mime_types,
$this->c,
$section
);
$extensions = array_keys( $mime_types2 );
// Remove ext from filesmatch if its the same as permalink extension.
$pext = strtolower( pathinfo( get_option( 'permalink_structure' ), PATHINFO_EXTENSION ) );
if ( $pext ) {
$extensions = Util_Rule::remove_extension_from_list( $extensions, $pext );
}
$extensions_string = implode( '|', $extensions );
$section_rules = self::section_rules( $section );
$section_rules = apply_filters( 'w3tc_browsercache_rules_section',
$section_rules, $this->c, $section );
$context_rules = $section_rules['other'];
if ( !empty( $section_rules['add_header'] ) ) {
$context_rules[] = " extraHeaders <<c->get_boolean( "browsercache.$section.expires" );
$lifetime = $this->c->get_integer( "browsercache.$section.lifetime" );
if ( $expires ) {
$rules[] = ' enableExpires 1';
$rules[] = " expiresDefault A$lifetime";
$rules[] = " ExpiresByType */*=A$lifetime";
} else {
$rules[] = ' enableExpires 0';
}
/*
if ( $this->c->get_boolean( "browsercache.$section.last_modified" ) )
lastmod support not implemented
*/
$add_header_rules = array();
if ( $this->c->get_boolean( "browsercache.$section.cache.control" ) ) {
$cache_policy = $this->c->get_string( "browsercache.$section.cache.policy" );
switch ( $cache_policy ) {
case 'cache':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma public';
$add_header_rules[] = 'set Cache-Control public';
break;
case 'cache_public_maxage':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma public';
break;
case 'cache_validation':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma public';
$add_header_rules[] = 'unset Cache-Control';
$add_header_rules[] = 'set Cache-Control "public, must-revalidate, proxy-revalidate"';
break;
case 'cache_noproxy':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma public';
$add_header_rules[] = 'unset Cache-Control';
$add_header_rules[] = 'set Cache-Control "private, must-revalidate"';
break;
case 'cache_maxage':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma "public"';
$add_header_rules[] = 'unset Cache-Control';
if ( $expires ) {
$add_header_rules[] = 'set Cache-Control "public, must-revalidate, proxy-revalidate"';
} else {
$add_header_rules[] = "set Cache-Control \"max-age=$lifetime, public, must-revalidate, proxy-revalidate\"";
}
break;
case 'no_cache':
$add_header_rules[] = 'unset Pragma';
$add_header_rules[] = 'set Pragma "no-cache";';
$add_header_rules[] = 'unset Cache-Control';
$add_header_rules[] = 'set Cache-Control "max-age=0, private, no-store, no-cache, must-revalidate"';
break;
}
}
// need htaccess for rewrites
$rewrite = $this->c->get_boolean( 'browsercache.rewrite' );
return array( 'add_header' => $add_header_rules, 'other' => $rules, 'rewrite' => $rewrite );
}
public function w3tc_cdn_rules_section( $section_rules ) {
$section_rules_bc = $this->section_rules( 'other' );
$section_rules['other'] = array_merge( $section_rules['other'], $section_rules_bc['other'] );
$section_rules['add_header'] = array_merge(
$section_rules['add_header'], $section_rules_bc['add_header'] );
return $section_rules;
}
}