/**
* Generates rules for WP dir
*
* @param Config $config
* @return string
*/
private function rules_core_generate_nginx($config)
{
$is_network = Util_Environment::is_wpmu();
$cache_dir = Util_Environment::normalize_path(W3TC_CACHE_PAGE_ENHANCED_DIR);
$permalink_structure = get_option('permalink_structure');
/**
* Auto reject cookies
*/
$reject_cookies = array('comment_author', 'wp-postpass');
if ($config->get_string('pgcache.engine') == 'file_generic') {
$reject_cookies[] = 'w3tc_logged_out';
}
/**
* Reject cache for logged in users
* OR
* Reject cache for roles if any
*/
if ($config->get_boolean('pgcache.reject.logged')) {
$reject_cookies = array_merge($reject_cookies, array('wordpress_logged_in'));
} elseif ($config->get_boolean('pgcache.reject.logged_roles')) {
$new_cookies = array();
foreach ($config->get_array('pgcache.reject.roles') as $role) {
$new_cookies[] = 'w3tc_logged_' . md5(NONCE_KEY . $role);
}
$reject_cookies = array_merge($reject_cookies, $new_cookies);
}
/**
* Custom config
*/
$reject_cookies = array_merge($reject_cookies, $config->get_array('pgcache.reject.cookie'));
Util_Rule::array_trim($reject_cookies);
$reject_user_agents = $config->get_array('pgcache.reject.ua');
if ($config->get_boolean('pgcache.compatibility')) {
$reject_user_agents = array_merge(array(W3TC_POWERED_BY), $reject_user_agents);
}
Util_Rule::array_trim($reject_user_agents);
/**
* Generate rules
*/
$env_w3tc_ua = '';
$env_w3tc_ref = '';
$env_w3tc_ssl = '';
$env_w3tc_ext = '';
$env_w3tc_enc = '';
$rules = '';
$rules .= W3TC_MARKER_BEGIN_PGCACHE_CORE . "\n";
if ($config->get_boolean('pgcache.debug')) {
$rules .= "rewrite ^(.*\\/)?w3tc_rewrite_test([0-9]+)/?\$ \$1?w3tc_rewrite_test=1 last;\n";
}
/**
* Check for mobile redirect
*/
if ($config->get_boolean('mobile.enabled')) {
$mobile_groups = $config->get_array('mobile.rgroups');
foreach ($mobile_groups as $mobile_group => $mobile_config) {
$mobile_enabled = isset($mobile_config['enabled']) ? (bool) $mobile_config['enabled'] : false;
$mobile_agents = isset($mobile_config['agents']) ? (array) $mobile_config['agents'] : '';
$mobile_redirect = isset($mobile_config['redirect']) ? $mobile_config['redirect'] : '';
if ($mobile_enabled && count($mobile_agents) && $mobile_redirect) {
$rules .= "if (\$http_user_agent ~* \"(" . implode('|', $mobile_agents) . ")\") {\n";
$rules .= " rewrite .* " . $mobile_redirect . " last;\n";
$rules .= "}\n";
}
}
}
/**
* Check for referrer redirect
*/
if ($config->get_boolean('referrer.enabled')) {
$referrer_groups = $config->get_array('referrer.rgroups');
foreach ($referrer_groups as $referrer_group => $referrer_config) {
$referrer_enabled = isset($referrer_config['enabled']) ? (bool) $referrer_config['enabled'] : false;
$referrer_referrers = isset($referrer_config['referrers']) ? (array) $referrer_config['referrers'] : '';
$referrer_redirect = isset($referrer_config['redirect']) ? $referrer_config['redirect'] : '';
if ($referrer_enabled && count($referrer_referrers) && $referrer_redirect) {
$rules .= "if (\$http_cookie ~* \"w3tc_referrer=.*(" . implode('|', $referrer_referrers) . ")\") {\n";
$rules .= " rewrite .* " . $referrer_redirect . " last;\n";
$rules .= "}\n";
}
}
}
/**
* Don't accept POSTs
*/
$rules .= "set \$w3tc_rewrite 1;\n";
$rules .= "if (\$request_method = POST) {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
/**
* Query string should be empty
*/
$rules .= "if (\$query_string != \"\") {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
/**
* Check permalink structure trailing slash
*/
if (substr($permalink_structure, -1) == '/') {
$rules .= "if (\$request_uri !~ \\/\$) {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
}
/**
* Check for rejected cookies
*/
$rules .= "if (\$http_cookie ~* \"(" . implode('|', array_map(array('\\W3TC\\Util_Environment', 'preg_quote'), $reject_cookies)) . ")\") {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
/**
* Check for rejected user agents
*/
if (count($reject_user_agents)) {
$rules .= "if (\$http_user_agent ~* \"(" . implode('|', array_map(array('\\W3TC\\Util_Environment', 'preg_quote'), $reject_user_agents)) . ")\") {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
}
/**
* Check mobile groups
*/
if ($config->get_boolean('mobile.enabled')) {
$mobile_groups = array_reverse($config->get_array('mobile.rgroups'));
$set_ua_var = true;
foreach ($mobile_groups as $mobile_group => $mobile_config) {
$mobile_enabled = isset($mobile_config['enabled']) ? (bool) $mobile_config['enabled'] : false;
$mobile_agents = isset($mobile_config['agents']) ? (array) $mobile_config['agents'] : '';
$mobile_redirect = isset($mobile_config['redirect']) ? $mobile_config['redirect'] : '';
if ($mobile_enabled && count($mobile_agents) && !$mobile_redirect) {
if ($set_ua_var) {
$rules .= "set \$w3tc_ua \"\";\n";
$set_ua_var = false;
}
$rules .= "if (\$http_user_agent ~* \"(" . implode('|', $mobile_agents) . ")\") {\n";
$rules .= " set \$w3tc_ua _" . $mobile_group . ";\n";
$rules .= "}\n";
$env_w3tc_ua = "\$w3tc_ua";
}
}
}
/**
* Check for preview cookie
*/
$rules .= "set \$w3tc_preview \"\";\n";
$rules .= "if (\$http_cookie ~* \"(w3tc_preview)\") {\n";
$rules .= " set \$w3tc_preview _preview;\n";
$rules .= "}\n";
$env_w3tc_preview = "\$w3tc_preview";
/**
* Check referrer groups
*/
if ($config->get_boolean('referrer.enabled')) {
$referrer_groups = array_reverse($config->get_array('referrer.rgroups'));
$set_ref_var = true;
foreach ($referrer_groups as $referrer_group => $referrer_config) {
$referrer_enabled = isset($referrer_config['enabled']) ? (bool) $referrer_config['enabled'] : false;
$referrer_referrers = isset($referrer_config['referrers']) ? (array) $referrer_config['referrers'] : '';
$referrer_redirect = isset($referrer_config['redirect']) ? $referrer_config['redirect'] : '';
if ($referrer_enabled && count($referrer_referrers) && !$referrer_redirect) {
if ($set_ref_var) {
$rules .= "set \$w3tc_ref \"\";\n";
$set_ref_var = false;
}
$rules .= "if (\$http_cookie ~* \"w3tc_referrer=.*(" . implode('|', $referrer_referrers) . ")\") {\n";
$rules .= " set \$w3tc_ref _" . $referrer_group . ";\n";
$rules .= "}\n";
$env_w3tc_ref = "\$w3tc_ref";
}
}
}
if ($config->get_boolean('pgcache.cache.ssl')) {
$rules .= "set \$w3tc_ssl \"\";\n";
$rules .= "if (\$scheme = https) {\n";
$rules .= " set \$w3tc_ssl _ssl;\n";
$rules .= "}\n";
$env_w3tc_ssl = "\$w3tc_ssl";
}
if ($config->get_boolean('browsercache.enabled') && $config->get_boolean('browsercache.html.compression')) {
$rules .= "set \$w3tc_enc \"\";\n";
$rules .= "if (\$http_accept_encoding ~ gzip) {\n";
$rules .= " set \$w3tc_enc _gzip;\n";
$rules .= "}\n";
$env_w3tc_enc = "\$w3tc_enc";
}
$cache_path = str_replace(Util_Environment::document_root(), '', $cache_dir);
$uri_prefix = $cache_path . "/\$http_host/" . "\$request_uri/_index" . $env_w3tc_ua . $env_w3tc_ref . $env_w3tc_ssl . $env_w3tc_preview;
if (!$config->get_boolean('pgcache.cache.nginx_handle_xml')) {
$env_w3tc_ext = '.html';
$rules .= "if (!-f \"\$document_root" . $uri_prefix . ".html" . $env_w3tc_enc . "\") {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
} else {
$env_w3tc_ext = "\$w3tc_ext";
$rules .= "set \$w3tc_ext \"\";\n";
$rules .= "if (-f \"\$document_root" . $uri_prefix . ".html" . $env_w3tc_enc . "\") {\n";
$rules .= " set \$w3tc_ext .html;\n";
$rules .= "}\n";
$rules .= "if (-f \"\$document_root" . $uri_prefix . ".xml" . $env_w3tc_enc . "\") {\n";
$rules .= " set \$w3tc_ext .xml;\n";
$rules .= "}\n";
$rules .= "if (\$w3tc_ext = \"\") {\n";
$rules .= " set \$w3tc_rewrite 0;\n";
$rules .= "}\n";
}
$rules .= "if (\$w3tc_rewrite = 1) {\n";
$rules .= " rewrite .* \"" . $uri_prefix . $env_w3tc_ext . $env_w3tc_enc . "\" last;\n";
$rules .= "}\n";
$rules .= W3TC_MARKER_END_PGCACHE_CORE . "\n";
return $rules;
}
