/**
*
*/
function w3tc_default_remove_add_in()
{
$module = Util_Request::get_string('w3tc_default_remove_add_in');
// in the case of missing permissions to delete
// environment will use that to try to override addin via ftp
set_transient('w3tc_remove_add_in_' . $module, 'yes', 600);
switch ($module) {
case 'pgcache':
Util_WpFile::delete_file(W3TC_ADDIN_FILE_ADVANCED_CACHE);
$src = W3TC_INSTALL_FILE_ADVANCED_CACHE;
$dst = W3TC_ADDIN_FILE_ADVANCED_CACHE;
try {
Util_WpFile::copy_file($src, $dst);
} catch (Util_WpFile_FilesystemOperationException $ex) {
}
break;
case 'dbcache':
Util_WpFile::delete_file(W3TC_ADDIN_FILE_DB);
break;
case 'objectcache':
Util_WpFile::delete_file(W3TC_ADDIN_FILE_OBJECT_CACHE);
break;
}
Util_Admin::redirect(array('w3tc_note' => 'add_in_removed'), true);
}
/**
* Fixes folders
*
* @param Config $config
* @param Util_Environment_Exceptions $exs
*/
private function fix_folders($config, $exs)
{
// folder that we delete if exists and not writeable
if ($config->get_boolean('minify.enabled') && $config->get_string('minify.engine') == 'file') {
$dir = W3TC_CACHE_MINIFY_DIR;
try {
if (file_exists($dir) && !is_writeable($dir)) {
Util_WpFile::delete_folder($dir, '', $_SERVER['REQUEST_URI']);
}
} catch (Util_WpFile_FilesystemRmdirException $ex) {
$exs->push($ex);
}
}
}
/**
* Deletes add-in
*
* @throws Util_WpFile_FilesystemOperationException
*/
private function delete_addin()
{
if ($this->is_dbcache_add_in()) {
Util_WpFile::delete_file(W3TC_ADDIN_FILE_DB);
}
}
/**
* Writes directives to WP .htaccess / nginx.conf
* returns true if modifications has been made
*/
private function rules_core_add($config, $exs)
{
$path = Util_Rule::get_pgcache_rules_core_path();
if ($path === false) {
return;
}
$original_data = @file_get_contents($path);
if ($original_data === false) {
$original_data = '';
}
$data = $original_data;
if ($has_wpsc = Util_Rule::has_rules($data, W3TC_MARKER_BEGIN_PGCACHE_WPSC, W3TC_MARKER_END_PGCACHE_WPSC)) {
$data = Util_Rule::erase_rules($data, W3TC_MARKER_BEGIN_PGCACHE_WPSC, W3TC_MARKER_END_PGCACHE_WPSC);
}
$rules = $this->rules_core_generate($config);
$rules_missing = strstr(Util_Rule::clean_rules($data), Util_Rule::clean_rules($rules)) === false;
if (!$has_wpsc && !$rules_missing) {
return;
}
// modification of file not required
$replace_start = strpos($data, W3TC_MARKER_BEGIN_PGCACHE_CORE);
$replace_end = strpos($data, W3TC_MARKER_END_PGCACHE_CORE);
if ($replace_start !== false && $replace_end !== false && $replace_start < $replace_end) {
$replace_length = $replace_end - $replace_start + strlen(W3TC_MARKER_END_PGCACHE_CORE) + 1;
} else {
$replace_start = false;
$replace_length = 0;
$search = array(W3TC_MARKER_BEGIN_BROWSERCACHE_NO404WP => 0, W3TC_MARKER_BEGIN_WORDPRESS => 0, W3TC_MARKER_END_MINIFY_CORE => strlen(W3TC_MARKER_END_MINIFY_CORE) + 1, W3TC_MARKER_END_BROWSERCACHE_CACHE => strlen(W3TC_MARKER_END_BROWSERCACHE_CACHE) + 1, W3TC_MARKER_END_PGCACHE_CACHE => strlen(W3TC_MARKER_END_PGCACHE_CACHE) + 1, W3TC_MARKER_END_MINIFY_CACHE => strlen(W3TC_MARKER_END_MINIFY_CACHE) + 1);
foreach ($search as $string => $length) {
$replace_start = strpos($data, $string);
if ($replace_start !== false) {
$replace_start += $length;
break;
}
}
}
if ($replace_start !== false) {
$data = Util_Rule::trim_rules(substr_replace($data, $rules, $replace_start, $replace_length));
} else {
$data = Util_Rule::trim_rules($data . $rules);
}
try {
Util_WpFile::write_to_file($path, $data);
} catch (Util_WpFile_FilesystemOperationException $ex) {
if ($has_wpsc) {
$exs->push(new Util_WpFile_FilesystemModifyException($ex->getMessage(), $ex->credentials_form(), sprintf(__('Edit file <strong>%s</strong> and remove all lines between and including
<strong>%s</strong> and <strong>%s</strong> markers.', 'w3-total-cache'), $path, W3TC_MARKER_BEGIN_PGCACHE_WPSC, W3TC_MARKER_END_PGCACHE_WPSC), $path));
}
if ($rules_missing) {
if (strpos($data, W3TC_MARKER_BEGIN_PGCACHE_CORE) !== false) {
$exs->push(new Util_WpFile_FilesystemModifyException($ex->getMessage(), $ex->credentials_form(), sprintf(__('Edit file <strong>%s</strong> and replace all lines between and including
<strong>%s</strong> and <strong>%s</strong> markers with:', 'w3-total-cache'), $path, W3TC_MARKER_BEGIN_PGCACHE_CORE, W3TC_MARKER_END_PGCACHE_CORE), $path, $rules));
} else {
$exs->push(new Util_WpFile_FilesystemModifyException($ex->getMessage(), $ex->credentials_form(), sprintf(__('Edit file <strong>%s</strong> and add the following rules above the WordPress
directives:'), $path), $path, $rules));
}
}
return;
}
Util_Rule::after_rules_modified();
}
/**
* Deletes add-in
*
* @throws Util_WpFile_FilesystemOperationException
*/
private function delete_addin()
{
if ($this->is_objectcache_add_in()) {
Util_WpFile::delete_file(W3TC_ADDIN_FILE_OBJECT_CACHE);
}
}
/**
* Checks if addins in wp-content is available and correct version.
*
* @param Util_Environment_Exceptions $exs
*/
private function create_required_folders($exs)
{
// folders that we create if not exists
$directories = array(W3TC_CACHE_DIR, W3TC_CONFIG_DIR);
foreach ($directories as $directory) {
try {
Util_WpFile::create_writeable_folder($directory, WP_CONTENT_DIR);
} catch (Util_WpFile_FilesystemOperationException $ex) {
$exs->push($ex);
}
}
// folders that we delete if exists and not writeable
$directories = array(W3TC_CACHE_TMP_DIR, W3TC_CACHE_BLOGMAP_FILENAME, W3TC_CACHE_DIR . '/object', W3TC_CACHE_DIR . '/db');
foreach ($directories as $directory) {
try {
if (file_exists($directory) && !is_writeable($directory)) {
Util_WpFile::delete_folder($directory);
}
} catch (Util_WpFile_FilesystemRmdirException $ex) {
$exs->push($ex);
}
}
}
/**
* Deletes maintenance mode file
*/
public static function disable_maintenance_mode()
{
Util_WpFile::delete_file(Util_Environment::site_path() . '/.maintenance');
}
/**
* Remove rules
*/
public static function remove_rules($exs, $path, $start, $end)
{
if (!file_exists($path)) {
return;
}
$data = @file_get_contents($path);
if ($data === false) {
return;
}
if (strstr($data, $start) === false) {
return;
}
$data = Util_Rule::erase_rules($data, $start, $end);
try {
Util_WpFile::write_to_file($path, $data);
} catch (Util_WpFile_FilesystemOperationException $ex) {
$exs->push(new Util_WpFile_FilesystemModifyException($ex->getMessage(), $ex->credentials_form(), sprintf(__('Edit file <strong>%s</strong> and remove all lines between and including <strong>%s</strong>
and <strong>%s</strong> markers.', 'w3-total-cache'), $path, $start, $end), $path));
}
}
