/**
* Activate plugin action
*
* @param bool $network_wide
* @return void
*/
public static function activate($network_wide)
{
// decline non-network activation at WPMU
if (Util_Environment::is_wpmu()) {
if ($network_wide) {
// we are in network activation
} else {
if ($_GET['action'] == 'error_scrape' && strpos($_SERVER['REQUEST_URI'], '/network/') !== false) {
// workaround for error_scrape page called after error
// really we are in network activation and going to throw some error
} else {
echo 'Please <a href="' . network_admin_url('plugins.php') . '">network activate</a> W3 Total Cache when using WordPress Multisite.';
die;
}
}
}
try {
$e = Dispatcher::component('Root_Environment');
$config = Dispatcher::config();
$e->fix_on_event($config, 'activate');
Generic_AdminLinks::link_update($config);
// try to save config file if needed, optional thing so exceptions
// hidden
if (!file_exists(Config::util_config_filename(0, false))) {
try {
// create folders
$e->fix_in_wpadmin($config);
} catch (\Exception $ex) {
}
try {
Util_Admin::config_save(Dispatcher::config(), $config);
} catch (\Exception $ex) {
}
}
} catch (\Exception $e) {
Util_Activation::error_on_exception($e);
}
}
public function save()
{
$data = array('version' => $this->_data['version']);
if ($this->is_master()) {
foreach ($this->_data as $key => $value) {
$data[$key] = $this->_data[$key];
}
} else {
// write only overwrited keys
$master = new ConfigCompiler(0, $this->_preview);
$master->load();
foreach ($this->_data as $key => $value) {
if (!ConfigCompiler::child_key_sealed($key, $master->_data, $this->_data)) {
$data[$key] = $this->_data[$key];
}
}
}
$filename = Config::util_config_filename($this->_blog_id, $this->_preview);
if (defined('JSON_PRETTY_PRINT')) {
$config = json_encode($data, JSON_PRETTY_PRINT);
} else {
// for older php versions
$config = json_encode($data);
}
Util_File::file_put_contents_atomic($filename, $config);
}
/**
* Check config file
*
* @param Config $config
* @param Util_Environment_Exceptions $exs
*/
private function notify_no_config_present($config, $exs)
{
if ((file_exists(Config::util_config_filename(0, false)) || file_exists(Config::util_config_filename_legacy(0, false))) && $config->get_integer('common.instance_id', 0) != 0) {
return;
}
$onclick = 'document.location.href=\'' . addslashes(wp_nonce_url('admin.php?page=w3tc_general&w3tc_save_options', 'w3tc')) . '\';';
$button = '<input type="button" class="button w3tc" ' . 'value="save the settings" onclick="' . $onclick . '" />';
$exs->push(new Util_Environment_Exception('<strong>W3 Total Cache:</strong> ' . 'Default settings are in use. The configuration file could ' . 'not be read or doesn\'t exist. Please ' . $button . ' to create the file.'));
}
/**
* Loads config.
* In a case it finds out config files are of older version - uses slower
* loader which takes all possible bloglevel-overloads into account
* correctly
*/
public function load()
{
$master_filename = Config::util_config_filename(0, $this->_preview);
$data = Config::util_array_from_file($master_filename);
// config file assumed is not up to date, use slow version
if (!isset($data['version']) || $data['version'] != W3TC_VERSION) {
return $this->load_full();
}
if (!$this->is_master()) {
$child_filename = Config::util_config_filename($this->_blog_id, $this->_preview);
$child_data = Config::util_array_from_file($child_filename);
if (!is_null($child_data)) {
if (!isset($data['version']) || $data['version'] != W3TC_VERSION) {
return $this->load_full();
}
foreach ($child_data as $key => $value) {
$data[$key] = $value;
}
}
}
$this->_data = $data;
}
/**
* Deploys the config file from a preview config file
*
* @param integer $direction +1: preview->production
* -1: production->preview
* @param boolean $remove_source remove source file
*/
private function preview_production_copy($direction = 1)
{
$blog_id = Util_Environment::blog_id();
$preview_filename = Config::util_config_filename($blog_id, true);
$production_filename = Config::util_config_filename($blog_id, false);
if ($direction > 0) {
$src = $preview_filename;
$dest = $production_filename;
} else {
$src = $production_filename;
$dest = $preview_filename;
}
if (!@copy($src, $dest)) {
Util_Activation::throw_on_write_error($dest);
}
}
