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<?php
/**
* The htaccess rewrite rule operation class
*
*
* @since 1.0.0
* @package LiteSpeed
* @subpackage LiteSpeed/inc
* @author LiteSpeed Technologies <info@litespeedtech.com>
*/
namespace LiteSpeed;
defined('WPINC') || exit();
class Htaccess extends Root
{
private $frontend_htaccess = null;
private $_default_frontend_htaccess = null;
private $backend_htaccess = null;
private $_default_backend_htaccess = null;
private $theme_htaccess = null; // Not used yet
private $frontend_htaccess_readable = false;
private $frontend_htaccess_writable = false;
private $backend_htaccess_readable = false;
private $backend_htaccess_writable = false;
private $theme_htaccess_readable = false;
private $theme_htaccess_writable = false;
private $__rewrite_on;
const LS_MODULE_START = '<IfModule LiteSpeed>';
const EXPIRES_MODULE_START = '<IfModule mod_expires.c>';
const LS_MODULE_END = '</IfModule>';
const LS_MODULE_REWRITE_START = '<IfModule mod_rewrite.c>';
const REWRITE_ON = 'RewriteEngine on';
const LS_MODULE_DONOTEDIT = '## LITESPEED WP CACHE PLUGIN - Do not edit the contents of this block! ##';
const MARKER = 'LSCACHE';
const MARKER_NONLS = 'NON_LSCACHE';
const MARKER_LOGIN_COOKIE = '### marker LOGIN COOKIE';
const MARKER_ASYNC = '### marker ASYNC';
const MARKER_CRAWLER = '### marker CRAWLER';
const MARKER_MOBILE = '### marker MOBILE';
const MARKER_NOCACHE_COOKIES = '### marker NOCACHE COOKIES';
const MARKER_NOCACHE_USER_AGENTS = '### marker NOCACHE USER AGENTS';
const MARKER_CACHE_RESOURCE = '### marker CACHE RESOURCE';
const MARKER_BROWSER_CACHE = '### marker BROWSER CACHE';
const MARKER_MINIFY = '### marker MINIFY';
const MARKER_CORS = '### marker CORS';
const MARKER_WEBP = '### marker WEBP';
const MARKER_DROPQS = '### marker DROPQS';
const MARKER_START = ' start ###';
const MARKER_END = ' end ###';
const RW_PATTERN_RES = '/.*/[^/]*(responsive|css|js|dynamic|loader|fonts)\.php';
/**
* Initialize the class and set its properties.
*
* @since 1.0.7
*/
public function __construct()
{
$this->_path_set();
$this->_default_frontend_htaccess = $this->frontend_htaccess;
$this->_default_backend_htaccess = $this->backend_htaccess;
$frontend_htaccess = defined('LITESPEED_CFG_HTACCESS') ? LITESPEED_CFG_HTACCESS : false;
if ($frontend_htaccess && substr($frontend_htaccess, -10) === '/.htaccess') {
$this->frontend_htaccess = $frontend_htaccess;
}
$backend_htaccess = defined('LITESPEED_CFG_HTACCESS_BACKEND') ? LITESPEED_CFG_HTACCESS_BACKEND : false;
if ($backend_htaccess && substr($backend_htaccess, -10) === '/.htaccess') {
$this->backend_htaccess = $backend_htaccess;
}
// Filter for frontend&backend htaccess path
$this->frontend_htaccess = apply_filters('litespeed_frontend_htaccess', $this->frontend_htaccess);
$this->backend_htaccess = apply_filters('litespeed_backend_htaccess', $this->backend_htaccess);
clearstatcache();
// frontend .htaccess privilege
$test_permissions = file_exists($this->frontend_htaccess) ? $this->frontend_htaccess : dirname($this->frontend_htaccess);
if (is_readable($test_permissions)) {
$this->frontend_htaccess_readable = true;
}
if (is_writable($test_permissions)) {
$this->frontend_htaccess_writable = true;
}
$this->__rewrite_on = array(
self::REWRITE_ON,
'CacheLookup on',
'RewriteRule .* - [E=Cache-Control:no-autoflush]',
// "RewriteRule \.object-cache\.ini - [F,L]",
'RewriteRule ' . preg_quote(self::CONF_FILE) . ' - [F,L]',
);
// backend .htaccess privilege
if ($this->frontend_htaccess === $this->backend_htaccess) {
$this->backend_htaccess_readable = $this->frontend_htaccess_readable;
$this->backend_htaccess_writable = $this->frontend_htaccess_writable;
} else {
$test_permissions = file_exists($this->backend_htaccess) ? $this->backend_htaccess : dirname($this->backend_htaccess);
if (is_readable($test_permissions)) {
$this->backend_htaccess_readable = true;
}
if (is_writable($test_permissions)) {
$this->backend_htaccess_writable = true;
}
}
}
/**
* Get if htaccess file is readable
*
* @since 1.1.0
* @return string
*/
private function _readable($kind = 'frontend')
{
if ($kind === 'frontend') {
return $this->frontend_htaccess_readable;
}
if ($kind === 'backend') {
return $this->backend_htaccess_readable;
}
}
/**
* Get if htaccess file is writable
*
* @since 1.1.0
* @return string
*/
public function writable($kind = 'frontend')
{
if ($kind === 'frontend') {
return $this->frontend_htaccess_writable;
}
if ($kind === 'backend') {
return $this->backend_htaccess_writable;
}
}
/**
* Get frontend htaccess path
*
* @since 1.1.0
* @return string
*/
public static function get_frontend_htaccess($show_default = false)
{
if ($show_default) {
return self::cls()->_default_frontend_htaccess;
}
return self::cls()->frontend_htaccess;
}
/**
* Get backend htaccess path
*
* @since 1.1.0
* @return string
*/
public static function get_backend_htaccess($show_default = false)
{
if ($show_default) {
return self::cls()->_default_backend_htaccess;
}
return self::cls()->backend_htaccess;
}
/**
* Check to see if .htaccess exists starting at $start_path and going up directories until it hits DOCUMENT_ROOT.
*
* As dirname() strips the ending '/', paths passed in must exclude the final '/'
*
* @since 1.0.11
* @access private
*/
private function _htaccess_search($start_path)
{
while (!file_exists($start_path . '/.htaccess')) {
if ($start_path === '/' || !$start_path) {
return false;
}
if (!empty($_SERVER['DOCUMENT_ROOT']) && wp_normalize_path($start_path) === wp_normalize_path($_SERVER['DOCUMENT_ROOT'])) {
return false;
}
if (dirname($start_path) === $start_path) {
return false;
}
$start_path = dirname($start_path);
}
return $start_path;
}
/**
* Set the path class variables.
*
* @since 1.0.11
* @access private
*/
private function _path_set()
{
$frontend = Router::frontend_path();
$frontend_htaccess_search = $this->_htaccess_search($frontend); // The existing .htaccess path to be used for frontend .htaccess
$this->frontend_htaccess = ($frontend_htaccess_search ?: $frontend) . '/.htaccess';
$backend = realpath(ABSPATH); // /home/user/public_html/backend/
if ($frontend == $backend) {
$this->backend_htaccess = $this->frontend_htaccess;
return;
}
// Backend is a different path
$backend_htaccess_search = $this->_htaccess_search($backend);
// Found affected .htaccess
if ($backend_htaccess_search) {
$this->backend_htaccess = $backend_htaccess_search . '/.htaccess';
return;
}
// Frontend path is the parent of backend path
if (stripos($backend, $frontend . '/') === 0) {
// backend use frontend htaccess
$this->backend_htaccess = $this->frontend_htaccess;
return;
}
$this->backend_htaccess = $backend . '/.htaccess';
}
/**
* Get corresponding htaccess path
*
* @since 1.1.0
* @param string $kind Frontend or backend
* @return string Path
*/
public function htaccess_path($kind = 'frontend')
{
switch ($kind) {
case 'backend':
$path = $this->backend_htaccess;
break;
case 'frontend':
default:
$path = $this->frontend_htaccess;
break;
}
return $path;
}
/**
* Get the content of the rules file.
*
* NOTE: will throw error if failed
*
* @since 1.0.4
* @since 2.9 Used exception for failed reading
* @access public
*/
public function htaccess_read($kind = 'frontend')
{
$path = $this->htaccess_path($kind);
if (!$path || !file_exists($path)) {
return "\n";
}
if (!$this->_readable($kind)) {
Error::t('HTA_R');
}
$content = File::read($path);
if ($content === false) {
Error::t('HTA_GET');
}
// Remove ^M characters.
$content = str_ireplace("\x0D", '', $content);
return $content;
}
/**
* Try to backup the .htaccess file if we didn't save one before.
*
* NOTE: will throw error if failed
*
* @since 1.0.10
* @access private
*/
private function _htaccess_backup($kind = 'frontend')
{
$path = $this->htaccess_path($kind);
if (!file_exists($path)) {
return;
}
if (file_exists($path . '.bk')) {
return;
}
$res = copy($path, $path . '.bk');
// Failed to backup, abort
if (!$res) {
Error::t('HTA_BK');
}
}
/**
* Get mobile view rule from htaccess file
*
* NOTE: will throw error if failed
*
* @since 1.1.0
*/
public function current_mobile_agents()
{
$rules = $this->_get_rule_by(self::MARKER_MOBILE);
if (!isset($rules[0])) {
Error::t('HTA_DNF', self::MARKER_MOBILE);
}
$rule = trim($rules[0]);
// 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex( $cfg[ $id ], true ) . ' [NC]';
$match = substr($rule, strlen('RewriteCond %{HTTP_USER_AGENT} '), -strlen(' [NC]'));
if (!$match) {
Error::t('HTA_DNF', __('Mobile Agent Rules', 'litespeed-cache'));
}
return $match;
}
/**
* Parse rewrites rule from the .htaccess file.
*
* NOTE: will throw error if failed
*
* @since 1.1.0
* @access public
*/
public function current_login_cookie($kind = 'frontend')
{
$rule = $this->_get_rule_by(self::MARKER_LOGIN_COOKIE, $kind);
if (!$rule) {
Error::t('HTA_DNF', self::MARKER_LOGIN_COOKIE);
}
if (strpos($rule, 'RewriteRule .? - [E=') !== 0) {
Error::t('HTA_LOGIN_COOKIE_INVALID');
}
$rule_cookie = substr($rule, strlen('RewriteRule .? - [E='), -1);
if (LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS') {
$rule_cookie = trim($rule_cookie, '"');
}
// Drop `Cache-Vary:`
$rule_cookie = substr($rule_cookie, strlen('Cache-Vary:'));
return $rule_cookie;
}
/**
* Get rewrite rules based on the marker
*
* @since 2.0
* @access private
*/
private function _get_rule_by($cond, $kind = 'frontend')
{
clearstatcache();
$path = $this->htaccess_path($kind);
if (!$this->_readable($kind)) {
return false;
}
$rules = File::extract_from_markers($path, self::MARKER);
if (!in_array($cond . self::MARKER_START, $rules) || !in_array($cond . self::MARKER_END, $rules)) {
return false;
}
$key_start = array_search($cond . self::MARKER_START, $rules);
$key_end = array_search($cond . self::MARKER_END, $rules);
if ($key_start === false || $key_end === false) {
return false;
}
$results = array_slice($rules, $key_start + 1, $key_end - $key_start - 1);
if (!$results) {
return false;
}
if (count($results) == 1) {
return trim($results[0]);
}
return array_filter($results);
}
/**
* Generate browser cache rules
*
* @since 1.3
* @access private
* @return array Rules set
*/
private function _browser_cache_rules($cfg)
{
/**
* Add ttl setting
* @since 1.6.3
*/
$id = Base::O_CACHE_TTL_BROWSER;
$ttl = $cfg[$id];
$rules = array(
self::EXPIRES_MODULE_START,
// '<FilesMatch "\.(pdf|ico|svg|xml|jpg|jpeg|png|gif|webp|ogg|mp4|webm|js|css|woff|woff2|ttf|eot)(\.gz)?$">',
'ExpiresActive on',
'ExpiresByType application/pdf A' . $ttl,
'ExpiresByType image/x-icon A' . $ttl,
'ExpiresByType image/vnd.microsoft.icon A' . $ttl,
'ExpiresByType image/svg+xml A' . $ttl,
'',
'ExpiresByType image/jpg A' . $ttl,
'ExpiresByType image/jpeg A' . $ttl,
'ExpiresByType image/png A' . $ttl,
'ExpiresByType image/gif A' . $ttl,
'ExpiresByType image/webp A' . $ttl,
'',
'ExpiresByType video/ogg A' . $ttl,
'ExpiresByType audio/ogg A' . $ttl,
'ExpiresByType video/mp4 A' . $ttl,
'ExpiresByType video/webm A' . $ttl,
'',
'ExpiresByType text/css A' . $ttl,
'ExpiresByType text/javascript A' . $ttl,
'ExpiresByType application/javascript A' . $ttl,
'ExpiresByType application/x-javascript A' . $ttl,
'',
'ExpiresByType application/x-font-ttf A' . $ttl,
'ExpiresByType application/x-font-woff A' . $ttl,
'ExpiresByType application/font-woff A' . $ttl,
'ExpiresByType application/font-woff2 A' . $ttl,
'ExpiresByType application/vnd.ms-fontobject A' . $ttl,
'ExpiresByType font/ttf A' . $ttl,
'ExpiresByType font/otf A' . $ttl,
'ExpiresByType font/woff A' . $ttl,
'ExpiresByType font/woff2 A' . $ttl,
'',
// '</FilesMatch>',
self::LS_MODULE_END,
);
return $rules;
}
/**
* Generate CORS rules for fonts
*
* @since 1.5
* @access private
* @return array Rules set
*/
private function _cors_rules()
{
return array(
'<FilesMatch "\.(ttf|ttc|otf|eot|woff|woff2|font\.css)$">',
'<IfModule mod_headers.c>',
'Header set Access-Control-Allow-Origin "*"',
'</IfModule>',
'</FilesMatch>',
);
}
/**
* Generate rewrite rules based on settings
*
* @since 1.3
* @access private
* @param array $cfg The settings to be used for rewrite rule
* @return array Rules array
*/
private function _generate_rules($cfg)
{
$new_rules = array();
$new_rules_nonls = array();
$new_rules_backend = array();
$new_rules_backend_nonls = array();
# continual crawler
// $id = Base::O_CRAWLER;
// if (!empty($cfg[$id])) {
$new_rules[] = self::MARKER_ASYNC . self::MARKER_START;
$new_rules[] = 'RewriteCond %{REQUEST_URI} /wp-admin/admin-ajax\.php';
$new_rules[] = 'RewriteCond %{QUERY_STRING} action=async_litespeed';
$new_rules[] = 'RewriteRule .* - [E=noabort:1]';
$new_rules[] = self::MARKER_ASYNC . self::MARKER_END;
$new_rules[] = '';
// }
// mobile agents
$id = Base::O_CACHE_MOBILE_RULES;
if ((!empty($cfg[Base::O_CACHE_MOBILE]) || !empty($cfg[Base::O_GUEST])) && !empty($cfg[$id])) {
$new_rules[] = self::MARKER_MOBILE . self::MARKER_START;
$new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex($cfg[$id], true) . ' [NC]';
$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+ismobile]';
$new_rules[] = self::MARKER_MOBILE . self::MARKER_END;
$new_rules[] = '';
}
// nocache cookie
$id = Base::O_CACHE_EXC_COOKIES;
if (!empty($cfg[$id])) {
$new_rules[] = self::MARKER_NOCACHE_COOKIES . self::MARKER_START;
$new_rules[] = 'RewriteCond %{HTTP_COOKIE} ' . Utility::arr2regex($cfg[$id], true);
$new_rules[] = 'RewriteRule .* - [E=Cache-Control:no-cache]';
$new_rules[] = self::MARKER_NOCACHE_COOKIES . self::MARKER_END;
$new_rules[] = '';
}
// nocache user agents
$id = Base::O_CACHE_EXC_USERAGENTS;
if (!empty($cfg[$id])) {
$new_rules[] = self::MARKER_NOCACHE_USER_AGENTS . self::MARKER_START;
$new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} ' . Utility::arr2regex($cfg[$id], true) . ' [NC]';
$new_rules[] = 'RewriteRule .* - [E=Cache-Control:no-cache]';
$new_rules[] = self::MARKER_NOCACHE_USER_AGENTS . self::MARKER_END;
$new_rules[] = '';
}
// caching php resource
$id = Base::O_CACHE_RES;
if (!empty($cfg[$id])) {
$new_rules[] = $new_rules_backend[] = self::MARKER_CACHE_RESOURCE . self::MARKER_START;
$new_rules[] = $new_rules_backend[] = 'RewriteRule ' . LSCWP_CONTENT_FOLDER . self::RW_PATTERN_RES . ' - [E=cache-control:max-age=3600]';
$new_rules[] = $new_rules_backend[] = self::MARKER_CACHE_RESOURCE . self::MARKER_END;
$new_rules[] = $new_rules_backend[] = '';
}
// check login cookie
$vary_cookies = $cfg[Base::O_CACHE_VARY_COOKIES];
$id = Base::O_CACHE_LOGIN_COOKIE;
if (!empty($cfg[$id])) {
$vary_cookies[] = $cfg[$id];
}
if (LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS') {
// Need to keep this due to different behavior of OLS when handling response vary header @Sep/22/2018
if (defined('COOKIEHASH')) {
$vary_cookies[] = ',wp-postpass_' . COOKIEHASH;
}
}
$vary_cookies = apply_filters('litespeed_vary_cookies', $vary_cookies); // todo: test if response vary header can work in latest OLS, drop the above two lines
// frontend and backend
if ($vary_cookies) {
$env = 'Cache-Vary:' . implode(',', $vary_cookies);
// if (LITESPEED_SERVER_TYPE === 'LITESPEED_SERVER_OLS') {
// }
$env = '"' . $env . '"';
$new_rules[] = $new_rules_backend[] = self::MARKER_LOGIN_COOKIE . self::MARKER_START;
$new_rules[] = $new_rules_backend[] = 'RewriteRule .? - [E=' . $env . ']';
$new_rules[] = $new_rules_backend[] = self::MARKER_LOGIN_COOKIE . self::MARKER_END;
$new_rules[] = '';
}
// CORS font rules
$id = Base::O_CDN;
if (!empty($cfg[$id])) {
$new_rules[] = self::MARKER_CORS . self::MARKER_START;
$new_rules = array_merge($new_rules, $this->_cors_rules()); //todo: network
$new_rules[] = self::MARKER_CORS . self::MARKER_END;
$new_rules[] = '';
}
// webp support
$id = Base::O_IMG_OPTM_WEBP;
if (!empty($cfg[$id]) || (!empty($cfg[Base::O_GUEST]) && !empty($cfg[Base::O_GUEST_OPTM]))) {
$new_rules[] = self::MARKER_WEBP . self::MARKER_START;
$new_rules[] = 'RewriteCond %{HTTP_ACCEPT} "image/webp"';
$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]';
$new_rules[] = 'RewriteCond %{HTTP_USER_AGENT} iPhone.*Version/(\d{2}).*Safari';
$new_rules[] = 'RewriteCond %1 >13';
$new_rules[] = 'RewriteRule .* - [E=Cache-Control:vary=%{ENV:LSCACHE_VARY_VALUE}+webp]';
$new_rules[] = self::MARKER_WEBP . self::MARKER_END;
$new_rules[] = '';
}
// drop qs support
$id = Base::O_CACHE_DROP_QS;
if (!empty($cfg[$id])) {
$new_rules[] = self::MARKER_DROPQS . self::MARKER_START;
foreach ($cfg[$id] as $v) {
$new_rules[] = 'CacheKeyModify -qs:' . $v;
}
$new_rules[] = self::MARKER_DROPQS . self::MARKER_END;
$new_rules[] = '';
}
// Browser cache
$id = Base::O_CACHE_BROWSER;
if (!empty($cfg[$id])) {
$new_rules_nonls[] = $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_START;
$new_rules_nonls = array_merge($new_rules_nonls, $this->_browser_cache_rules($cfg));
$new_rules_backend_nonls = array_merge($new_rules_backend_nonls, $this->_browser_cache_rules($cfg));
$new_rules_nonls[] = $new_rules_backend_nonls[] = self::MARKER_BROWSER_CACHE . self::MARKER_END;
$new_rules_nonls[] = '';
}
// Add module wrapper for LiteSpeed rules
if ($new_rules) {
$new_rules = $this->_wrap_ls_module($new_rules);
}
if ($new_rules_backend) {
$new_rules_backend = $this->_wrap_ls_module($new_rules_backend);
}
return array($new_rules, $new_rules_backend, $new_rules_nonls, $new_rules_backend_nonls);
}
/**
* Add LitSpeed module wrapper with rewrite on
*
* @since 2.1.1
* @access private
*/
private function _wrap_ls_module($rules = array())
{
return array_merge(array(self::LS_MODULE_START), $this->__rewrite_on, array(''), $rules, array(self::LS_MODULE_END));
}
/**
* Insert LitSpeed module wrapper with rewrite on
*
* @since 2.1.1
* @access public
*/
public function insert_ls_wrapper()
{
$rules = $this->_wrap_ls_module();
$this->_insert_wrapper($rules);
}
/**
* wrap rules with module on info
*
* @since 1.1.5
* @param array $rules
* @return array wrapped rules with module info
*/
private function _wrap_do_no_edit($rules)
{
// When to clear rules, don't need DONOTEDIT msg
if ($rules === false || !is_array($rules)) {
return $rules;
}
$rules = array_merge(array(self::LS_MODULE_DONOTEDIT), $rules, array(self::LS_MODULE_DONOTEDIT));
return $rules;
}
/**
* Write to htaccess with rules
*
* NOTE: will throw error if failed
*
* @since 1.1.0
* @access private
*/
private function _insert_wrapper($rules = array(), $kind = false, $marker = false)
{
if ($kind != 'backend') {
$kind = 'frontend';
}
// Default marker is LiteSpeed marker `LSCACHE`
if ($marker === false) {
$marker = self::MARKER;
}
$this->_htaccess_backup($kind);
File::insert_with_markers($this->htaccess_path($kind), $this->_wrap_do_no_edit($rules), $marker, true);
}
/**
* Update rewrite rules based on setting
*
* NOTE: will throw error if failed
*
* @since 1.3
* @access public
*/
public function update($cfg)
{
list($frontend_rules, $backend_rules, $frontend_rules_nonls, $backend_rules_nonls) = $this->_generate_rules($cfg);
// Check frontend content
list($rules, $rules_nonls) = $this->_extract_rules();
// Check Non-LiteSpeed rules
if ($this->_wrap_do_no_edit($frontend_rules_nonls) != $rules_nonls) {
Debug2::debug('[Rules] Update non-ls frontend rules');
// Need to update frontend htaccess
try {
$this->_insert_wrapper($frontend_rules_nonls, false, self::MARKER_NONLS);
} catch (\Exception $e) {
$manual_guide_codes = $this->_rewrite_codes_msg($this->frontend_htaccess, $frontend_rules_nonls, self::MARKER_NONLS);
Debug2::debug('[Rules] Update Failed');
throw new \Exception($manual_guide_codes);
}
}
// Check LiteSpeed rules
if ($this->_wrap_do_no_edit($frontend_rules) != $rules) {
Debug2::debug('[Rules] Update frontend rules');
// Need to update frontend htaccess
try {
$this->_insert_wrapper($frontend_rules);
} catch (\Exception $e) {
Debug2::debug('[Rules] Update Failed');
$manual_guide_codes = $this->_rewrite_codes_msg($this->frontend_htaccess, $frontend_rules);
throw new \Exception($manual_guide_codes);
}
}
if ($this->frontend_htaccess !== $this->backend_htaccess) {
list($rules, $rules_nonls) = $this->_extract_rules('backend');
// Check Non-LiteSpeed rules for backend
if ($this->_wrap_do_no_edit($backend_rules_nonls) != $rules_nonls) {
Debug2::debug('[Rules] Update non-ls backend rules');
// Need to update frontend htaccess
try {
$this->_insert_wrapper($backend_rules_nonls, 'backend', self::MARKER_NONLS);
} catch (\Exception $e) {
Debug2::debug('[Rules] Update Failed');
$manual_guide_codes = $this->_rewrite_codes_msg($this->backend_htaccess, $backend_rules_nonls, self::MARKER_NONLS);
throw new \Exception($manual_guide_codes);
}
}
// Check backend content
if ($this->_wrap_do_no_edit($backend_rules) != $rules) {
Debug2::debug('[Rules] Update backend rules');
// Need to update backend htaccess
try {
$this->_insert_wrapper($backend_rules, 'backend');
} catch (\Exception $e) {
Debug2::debug('[Rules] Update Failed');
$manual_guide_codes = $this->_rewrite_codes_msg($this->backend_htaccess, $backend_rules);
throw new \Exception($manual_guide_codes);
}
}
}
return true;
}
/**
* Get existing rewrite rules
*
* NOTE: will throw error if failed
*
* @since 1.3
* @access private
* @param string $kind Frontend or backend .htaccess file
*/
private function _extract_rules($kind = 'frontend')
{
clearstatcache();
$path = $this->htaccess_path($kind);
if (!$this->_readable($kind)) {
Error::t('E_HTA_R');
}
$rules = File::extract_from_markers($path, self::MARKER);
$rules_nonls = File::extract_from_markers($path, self::MARKER_NONLS);
return array($rules, $rules_nonls);
}
/**
* Output the msg with rules plain data for manual insert
*
* @since 1.1.5
* @param string $file
* @param array $rules
* @return string final msg to output
*/
private function _rewrite_codes_msg($file, $rules, $marker = false)
{
return sprintf(
__('<p>Please add/replace the following codes into the beginning of %1$s:</p> %2$s', 'litespeed-cache'),
$file,
'<textarea style="width:100%;" rows="10" readonly>' . htmlspecialchars($this->_wrap_rules_with_marker($rules, $marker)) . '</textarea>'
);
}
/**
* Generate rules plain data for manual insert
*
* @since 1.1.5
*/
private function _wrap_rules_with_marker($rules, $marker = false)
{
// Default marker is LiteSpeed marker `LSCACHE`
if ($marker === false) {
$marker = self::MARKER;
}
$start_marker = "# BEGIN {$marker}";
$end_marker = "# END {$marker}";
$new_file_data = implode("\n", array_merge(array($start_marker), $this->_wrap_do_no_edit($rules), array($end_marker)));
return $new_file_data;
}
/**
* Clear the rules file of any changes added by the plugin specifically.
*
* @since 1.0.4
* @access public
*/
public function clear_rules()
{
$this->_insert_wrapper(false); // Use false to avoid do-not-edit msg
// Clear non ls rules
$this->_insert_wrapper(false, false, self::MARKER_NONLS);
if ($this->frontend_htaccess !== $this->backend_htaccess) {
$this->_insert_wrapper(false, 'backend');
$this->_insert_wrapper(false, 'backend', self::MARKER_NONLS);
}
}
}