*/
class Abovethefold_Admin_PWA
{
/**
* Above the fold controller
*/
public $CTRL;
/**
* Options
*/
public $options;
/**
* Initialize the class and set its properties.
*/
public function __construct(&$CTRL)
{
$this->CTRL = & $CTRL;
$this->options = & $CTRL->options;
/**
* Admin panel specific
*/
if (is_admin()) {
/**
* Handle form submissions
*/
$this->CTRL->loader->add_action('admin_post_abtf_pwa_update', $this, 'update_settings');
// add scripts/styles
$this->CTRL->loader->add_action('admin_enqueue_scripts', $this, 'enqueue_scripts', 30);
}
}
/**
* Update settings
*/
public function update_settings()
{
check_admin_referer('abovethefold');
// create manifest.json template
if (isset($_POST['create_manifest'])) {
$manifest = trailingslashit(ABSPATH) . 'manifest.json';
if (!file_exists($manifest)) {
try {
$manifestjson = array(
"short_name" => "",
"name" => "",
"icons" => array(),
"start_url" => "/?utm_source=web_app_manifest",
"background_color" => "#f0f3e9",
"theme_color" => "#3da508",
"display" => "standalone",
"orientation" => "landscape"
);
// PHP 5.3
if (version_compare(phpversion(), '5.4.0', '<')) {
$json = str_replace('\\/', '/', json_encode($manifestjson));
} else {
$json = json_encode($manifestjson, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
}
@file_put_contents($manifest, $json);
} catch (Exception $error) {
}
if (!file_exists($manifest)) {
$this->CTRL->admin->set_notice('Failed to install manifest.json on ' . esc_html(str_replace(ABSPATH, '[ABSPATH]/', $manifest)) . '. Please check the permissions.', 'ERROR');
} else {
$this->CTRL->admin->set_notice('manifest.json installed.', 'NOTICE');
}
}
wp_redirect(add_query_arg(array( 'page' => 'pagespeed-pwa' ), admin_url('admin.php')) . '#manifest');
exit;
}
// @link https://codex.wordpress.org/Function_Reference/stripslashes_deep
$_POST = array_map('stripslashes_deep', $_POST);
$options = get_option('abovethefold');
if (!is_array($options)) {
$options = array();
}
// input
$input = (isset($_POST['abovethefold']) && is_array($_POST['abovethefold'])) ? $_POST['abovethefold'] : array();
/**
* Google PWA optimization
*/
$options['pwa'] = (isset($input['pwa']) && intval($input['pwa']) === 1) ? true : false;
$options['pwa_register'] = (isset($input['pwa_register']) && intval($input['pwa_register']) === 1) ? true : false;
$options['pwa_unregister'] = (isset($input['pwa_unregister']) && intval($input['pwa_unregister']) === 1) ? true : false;
$options['pwa_scope'] = (isset($input['pwa_scope']) && trim($input['pwa_scope']) !== '') ? $input['pwa_scope'] : '';
$options['pwa_meta'] = (isset($input['pwa_meta']) && trim($input['pwa_meta']) !== '') ? trim($input['pwa_meta']) : '';
// General
$options['pwa_offline_class'] = (isset($input['pwa_offline_class']) && intval($input['pwa_offline_class']) === 1) ? true : false;
$options['pwa_cache_max_size'] = (isset($input['pwa_cache_max_size']) && trim($input['pwa_cache_max_size']) !== '' && intval($input['pwa_cache_max_size']) > 0) ? intval($input['pwa_cache_max_size']) : '';
// Page cache
$options['pwa_cache_pages'] = (isset($input['pwa_cache_pages']) && intval($input['pwa_cache_pages']) === 1) ? true : false;
$options['pwa_cache_pages_strategy'] = (isset($input['pwa_cache_pages_strategy']) && trim($input['pwa_cache_pages_strategy']) !== '') ? $input['pwa_cache_pages_strategy'] : '';
$options['pwa_cache_pages_update_interval'] = (isset($input['pwa_cache_pages_update_interval']) && trim($input['pwa_cache_pages_update_interval']) !== '' && intval($input['pwa_cache_pages_update_interval']) > 0) ? $input['pwa_cache_pages_update_interval'] : '';
$options['pwa_cache_pages_max_age'] = (isset($input['pwa_cache_pages_max_age']) && trim($input['pwa_cache_pages_max_age']) !== '' && intval($input['pwa_cache_pages_max_age']) > 0) ? $input['pwa_cache_pages_max_age'] : '';
$options['pwa_cache_pages_head_update'] = (isset($input['pwa_cache_pages_head_update']) && intval($input['pwa_cache_pages_head_update']) === 1) ? true : false;
$options['pwa_cache_pages_update_notify'] = (isset($input['pwa_cache_pages_update_notify']) && intval($input['pwa_cache_pages_update_notify']) === 1) ? true : false;
$options['pwa_cache_pages_include'] = $this->CTRL->admin->newline_array($input['pwa_cache_pages_include']);
$options['pwa_cache_pages_offline'] = (isset($input['pwa_cache_pages_offline']) && trim($input['pwa_cache_pages_offline']) !== '') ? $input['pwa_cache_pages_offline'] : '';
$options['pwa_cache_version'] = (isset($input['pwa_cache_version']) && trim($input['pwa_cache_version']) !== '') ? trim($input['pwa_cache_version']) : '';
// Preload
$options['pwa_cache_preload'] = $this->CTRL->admin->newline_array((isset($input['pwa_cache_preload'])) ? $input['pwa_cache_preload'] : '');
$options['pwa_cache_preload_require'] = (isset($input['pwa_cache_preload_require']) && intval($input['pwa_cache_preload_require']) === 1) ? true : false;
// preload on mousedown
$options['pwa_preload_mousedown'] = (isset($input['pwa_preload_mousedown']) && intval($input['pwa_preload_mousedown']) === 1) ? true : false;
// Asset cache
$options['pwa_cache_assets'] = (isset($input['pwa_cache_assets']) && intval($input['pwa_cache_assets']) === 1) ? true : false;
$options['pwa_cache_assets_policy'] = (isset($input['pwa_cache_assets_policy']) && trim($input['pwa_cache_assets_policy']) !== '') ? $input['pwa_cache_assets_policy'] : '';
if ($options['pwa_cache_assets_policy']) {
try {
$options['pwa_cache_assets_policy'] = @json_decode($options['pwa_cache_assets_policy'], true);
} catch (Exception $error) {
$options['pwa_cache_assets_policy'] = '';
}
if (!is_array($options['pwa_cache_assets_policy'])) {
$options['pwa_cache_assets_policy'] = array();
$this->CTRL->admin->set_notice('The asset cache policy does not contain valid JSON.', 'ERROR');
}
}
// install manifest json
$options['pwa_manifest_meta'] = (isset($input['pwa_manifest_meta']) && intval($input['pwa_manifest_meta']) === 1) ? true : false;
$options['manifest_json_update'] = (isset($input['manifest_json_update']) && intval($input['manifest_json_update']) === 1) ? true : false;
if ($options['manifest_json_update'] && isset($input['manifest_json']) && trim($input['manifest_json']) !== '') {
$manifest = trailingslashit(ABSPATH) . 'manifest.json';
if (!file_exists($manifest) || !is_writeable($manifest)) {
$this->CTRL->admin->set_notice('The Web App Manifest manifest.json is not writeable.', 'ERROR');
} else {
try {
$manifestjson = json_decode(trim($input['manifest_json']), true);
} catch (Exception $err) {
$this->CTRL->admin->set_notice('The Web App Manifest contains invalid JSON.', 'ERROR');
$manifestjson = false;
}
if ($manifestjson && is_array($manifestjson)) {
// add start url to options for PWA cache
if (isset($manifestjson['start_url'])) {
$options['pwa_manifest_start_url'] = $manifestjson['start_url'];
}
// add service worker
$manifestjson['serviceworker'] = array(
'src' => $this->CTRL->pwa->get_sw_path(),
'use_cache' => true
);
if (isset($input['pwa_scope']) && trim($input['pwa_scope']) !== '') {
$manifestjson['serviceworker']['scope'] = $input['pwa_scope'];
}
// PHP 5.3
if (version_compare(phpversion(), '5.4.0', '<')) {
$json = str_replace('\\/', '/', json_encode($manifestjson));
} else {
$json = json_encode($manifestjson, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
}
try {
@file_put_contents($manifest, $json);
} catch (Exception $error) {
}
if (!file_exists($manifest) || file_get_contents($manifest) !== $json) {
$this->CTRL->admin->set_notice('Failed to write to Web App Manifest manifest.json. Please check the permissions.', 'ERROR');
}
}
}
} else {
$manifest = trailingslashit(ABSPATH) . 'manifest.json';
if (file_exists($manifest)) {
try {
$manifestjson = json_decode(trim(file_get_contents($manifest)), true);
} catch (Exception $err) {
$manifestjson = false;
}
if ($manifestjson && is_array($manifestjson)) {
// add start url to options for PWA cache
if (isset($manifestjson['start_url'])) {
$options['pwa_manifest_start_url'] = $manifestjson['start_url'];
}
}
}
}
// update settings
$this->CTRL->admin->save_settings($options, 'Progressive Web App Optimization settings saved.');
// install service worker and cache policy
if ($options['pwa']) {
$this->install_serviceworker();
}
wp_redirect(add_query_arg(array( 'page' => 'pagespeed-pwa' ), admin_url('admin.php')));
exit;
}
/**
* Install Service Worker
*/
public function install_serviceworker()
{
// update service worker files
if (!$this->CTRL->pwa->update_sw()) {
$this->CTRL->admin->set_notice('Failed to install the Service Worker. Please copy the file manually from plugins/above-the-fold-optimization/public/js/pwa-serviceworker.js (and .debug.js) to the root directory of the WordPress installation.', 'ERROR');
}
// update abtf-pwa-policy.json config
if (!$this->CTRL->pwa->update_sw_config()) {
// get service worker path
$sw = $this->CTRL->pwa->get_sw();
$this->CTRL->admin->set_notice('Failed to install the Service Worker Cache Policy on ' . esc_html(str_replace(ABSPATH, '[ABSPATH]/', $sw['file_config'])) . '. Please check the permissions or create the file manually with the following JSON content: ', 'ERROR');
}
}
/**
* Enqueue scripts and styles
*/
public function enqueue_scripts($hook)
{
if (!isset($_REQUEST['page']) || $_GET['page'] !== 'pagespeed-pwa') {
return;
}
// add global admin CSS
wp_enqueue_style('abtf_admincp_jsoneditor_editor', plugin_dir_url(__FILE__) . 'js/jsoneditor/jsoneditor.min.css', false, WPABTF_VERSION);
wp_enqueue_style('abtf_admincp_jsoneditor', plugin_dir_url(__FILE__) . 'css/admincp-jsoneditor.min.css', false, WPABTF_VERSION);
// add general admin javascript
wp_enqueue_script('abtf_admincp_jsoneditor', plugin_dir_url(__FILE__) . 'js/jsoneditor/jsoneditor.min.js', array( 'jquery' ), WPABTF_VERSION);
wp_enqueue_script('abtf_admincp_pwa', plugin_dir_url(__FILE__) . 'js/admincp-pwa.min.js', array( 'jquery', 'abtf_admincp_jsoneditor' ), WPABTF_VERSION);
}
}