/**
* Activate plugin action
*
* @return void
*/
function activate()
{
require_once W3TC_INC_DIR . '/functions/activation.php';
/**
* Disable buggy sitewide activation in nxtMU and nxt 3.0
*/
if (w3_is_nxtmu() && isset($_GET['sitewide']) || w3_is_multisite() && isset($_GET['networkwide'])) {
w3_network_activate_error();
}
/**
* Check installation files
*/
$files = array(W3TC_INSTALL_FILE_ADVANCED_CACHE, W3TC_INSTALL_FILE_DB, W3TC_INSTALL_FILE_OBJECT_CACHE);
$nonexistent_files = array();
foreach ($files as $file) {
if (!file_exists($file)) {
$nonexistent_files[] = $file;
}
}
if (count($nonexistent_files)) {
$error = sprintf('Unfortunately core file(s): (<strong>%s</strong>) are missing, so activation will fail. Please re-start the installation process from the beginning.', implode(', ', $nonexistent_files));
w3_activate_error($error);
}
if (!@is_dir(W3TC_CONTENT_DIR) && !@mkdir(W3TC_CONTENT_DIR)) {
w3_writable_error(W3TC_CONTENT_DIR);
}
if (!@is_dir(W3TC_CACHE_FILE_DBCACHE_DIR) && !@mkdir(W3TC_CACHE_FILE_DBCACHE_DIR)) {
w3_writable_error(W3TC_CACHE_FILE_DBCACHE_DIR);
}
if (!@is_dir(W3TC_CACHE_FILE_OBJECTCACHE_DIR) && !@mkdir(W3TC_CACHE_FILE_OBJECTCACHE_DIR)) {
w3_writable_error(W3TC_CACHE_FILE_OBJECTCACHE_DIR);
}
if (!@is_dir(W3TC_CACHE_FILE_PGCACHE_DIR) && !@mkdir(W3TC_CACHE_FILE_PGCACHE_DIR)) {
w3_writable_error(W3TC_CACHE_FILE_PGCACHE_DIR);
}
if (!@is_dir(W3TC_CACHE_FILE_MINIFY_DIR) && !@mkdir(W3TC_CACHE_FILE_MINIFY_DIR)) {
w3_writable_error(W3TC_CACHE_FILE_MINIFY_DIR);
}
if (!@is_dir(W3TC_LOG_DIR) && !@mkdir(W3TC_LOG_DIR)) {
w3_writable_error(W3TC_LOG_DIR);
}
if (!@is_dir(W3TC_TMP_DIR) && !@mkdir(W3TC_TMP_DIR)) {
w3_writable_error(W3TC_TMP_DIR);
}
if (w3_is_network() && file_exists(W3TC_CONFIG_MASTER_PATH)) {
/**
* For multisite load master config
*/
$this->_config->load_master();
if (!$this->_config->save(false)) {
w3_writable_error(W3TC_CONFIG_PATH);
}
} elseif (!file_exists(W3TC_CONFIG_PATH)) {
/**
* Set default settings
*/
$this->_config->set_defaults();
/**
* If config doesn't exist enable preview mode
*/
if (!$this->_config->save(true)) {
w3_writable_error(W3TC_CONFIG_PREVIEW_PATH);
}
}
/**
* Save blognames into file
*/
if (w3_is_network() && !w3_is_subdomain_install()) {
if (!w3_save_blognames()) {
w3_writable_error(W3TC_BLOGNAMES_PATH);
}
}
delete_option('w3tc_request_data');
add_option('w3tc_request_data', '', null, 'no');
}
/**
* Returns if there is multisite mode
*
* @return boolean
*/
function w3_is_network()
{
return w3_is_nxtmu() || w3_is_multisite();
}