*/ class AAM_Shared_Manager { /** * Instance of itself * * @var AAM_Shared_Manager * * @access private */ private static $_instance = null; /** * Constructor * * @access protected * * @return void */ protected function __construct() {} /** * Initialize core hooks * * @return void * * @access public */ public static function bootstrap() { if (is_null(self::$_instance)) { self::$_instance = new self; // Disable XML-RPC if needed if (!AAM_Core_Config::get('core.settings.xmlrpc', true)) { add_filter('xmlrpc_enabled', '__return_false'); } // Disable RESTful API if needed if (!AAM_Core_Config::get('core.settings.restful', true)) { add_filter( 'rest_authentication_errors', array(self::$_instance, 'disableRest'), 1 ); } // Control post visibility //important to keep this option optional for optimization reasons if (AAM_Core_Config::get('core.settings.checkPostVisibility', true)) { add_filter( 'posts_clauses_request', array(self::$_instance, 'filterPostQuery'), 999, 2 ); } //filter post content add_filter('the_content', array(self::$_instance, 'filterPostContent'), 999); } return self::$_instance; } /** * * @global WPDB $wpdb * @param type $clauses * @param type $wpQuery * @return type */ public function filterPostQuery($clauses, $wpQuery) { global $wpdb; $query = ''; $option = AAM::getUser()->getObject('visibility')->getOption(); //echo '
'; print_r($option);
if (!empty($option['post'])) {
if (!empty($wpQuery->query['post_type'])) {
$postType = $wpQuery->query['post_type'];
} elseif (!empty($wpQuery->query_vars['post_type'])) {
$postType = $wpQuery->query_vars['post_type'];
} elseif ($wpQuery->is_attachment) {
$postType = 'attachment';
} elseif ($wpQuery->is_page) {
$postType = 'page';
} else {
$postType = 'post';
}
$not = array();
$area = AAM_Core_Api_Area::get();
foreach($option['post'] as $id => $access) {
$chunks = explode('|', $id);
if ($postType == $chunks[1]) {
if (!empty($access["{$area}.list"])) {
$not[] = $chunks[0];
}
}
}
$chunks = array();
if (!empty($not)) {
$query .= " AND {$wpdb->posts}.ID NOT IN (" . implode(',', $not) . ")";
}
}
$clauses['where'] .= apply_filters(
'aam-post-where-clause-filter', $query, $wpQuery, $option
);
if (strpos($clauses['where'], $wpdb->term_relationships) !== false) {
if (strpos($clauses['join'], $wpdb->term_relationships) === false) {
$clauses['join'] .= " LEFT JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)";
}
if (empty($clauses['groupby'])) {
$clauses['groupby'] = "{$wpdb->posts}.ID";
}
}
//echo ''; print_r($clauses); die();
return $clauses;
}
/**
* Disable REST API
*
* @param WP_Error|null|bool $response
*
* @return \WP_Error
*
* @access public
*/
public function disableRest($response) {
if (!is_wp_error($response)) {
$response = new WP_Error(
'rest_access_disabled',
__('RESTful API is disabled', AAM_KEY),
array('status' => 403)
);
}
return $response;
}
/**
* Check user capability
*
* This is a hack function that add additional layout on top of WordPress
* core functionality. Based on the capability passed in the $args array as
* "0" element, it performs additional check on user's capability to manage
* post, users etc.
*
* @param array $caps
* @param array $meta
* @param array $args
*
* @return array
*
* @access public
*/
public function userHasCap($caps, $meta, $args) {
$capability = (isset($args[0]) && is_string($args[0]) ? $args[0] : '');
$uid = (isset($args[2]) && is_numeric($args[2]) ? $args[2] : 0);
switch($capability) {
case 'edit_user':
case 'delete_user':
$caps = $this->authorizeUserUpdate($uid, $caps, $meta);
break;
case 'edit_post':
$caps = $this->authorizePostEdit($uid, $caps, $meta);
break;
case 'delete_post':
$caps = $this->authorizePostDelete($uid, $caps, $meta);
break;
case 'publish_posts':
case 'publish_pages':
$caps = $this->authorizePublishPost($caps, $meta);
break;
default:
break;
}
return $caps;
}
/**
* Filter pages fields
*
* @param string $fields
* @param WP_Query $query
*
* @return string
*
* @access public
* @global WPDB $wpdb
*/
public function fieldsRequest($fields, $query) {
global $wpdb;
$qfields = (isset($query->query['fields']) ? $query->query['fields'] : '');
if ($qfields == 'id=>parent') {
$author = "{$wpdb->posts}.post_author";
if (strpos($fields, $author) === false) {
$fields .= ", $author";
}
$status = "{$wpdb->posts}.post_status";
if (strpos($fields, $status) === false) {
$fields .= ", $status";
}
$type = "{$wpdb->posts}.post_type";
if (strpos($fields, $type) === false) {
$fields .= ", $type";
}
}
return $fields;
}
/**
* Filter post content
*
* @param string $content
*
* @return string
*
* @access public
* @global WP_Post $post
*/
public function filterPostContent($content) {
$post = AAM_Core_API::getCurrentPost();
$area = AAM_Core_Api_Area::get();
if ($post && $post->has($area . '.limit')) {
if ($post->has($area . '.teaser')) {
$message = $post->get($area . '.teaser');
} else {
$message = __('[No teaser message provided]', AAM_KEY);
}
$content = do_shortcode(stripslashes($message));
}
return $content;
}
/**
* Check if current user is allowed to manager specified user
*
* @param int $id
* @param array $allcaps
* @param array $metacaps
*
* @return array
*
* @access protected
*/
protected function authorizeUserUpdate($id, $allcaps, $metacaps) {
$user = new WP_User($id);
//current user max level
$maxLevel = AAM_Core_API::maxLevel(AAM::getUser()->allcaps);
//userLevel
$userLevel = AAM_Core_API::maxLevel($user->allcaps);
if ($maxLevel < $userLevel) {
$allcaps = $this->restrictCapabilities($allcaps, $metacaps);
}
return $allcaps;
}
/**
* Check if current user is allowed to edit post
*
* @param int $id
* @param array $allcaps
* @param array $metacaps
*
* @return array
*
* @access protected
*/
protected function authorizePostEdit($id, $allcaps, $metacaps) {
$object = AAM::getUser()->getObject('post', $id);
$draft = $object->post_status == 'auto-draft';
$area = AAM_Core_Api_Area::get();
if (!$draft && !$this->isActionAllowed($area . '.edit', $object)) {
$allcaps = $this->restrictCapabilities($allcaps, $metacaps);
}
return $allcaps;
}
/**
* Check if current user is allowed to delete post
*
* @param int $id
* @param array $allcaps
* @param array $metacaps
*
* @return array
*
* @access protected
*/
protected function authorizePostDelete($id, $allcaps, $metacaps) {
$object = AAM::getUser()->getObject('post', $id);
$area = AAM_Core_Api_Area::get();
if (!$this->isActionAllowed($area . '.delete', $object)) {
$allcaps = $this->restrictCapabilities($allcaps, $metacaps);
}
return $allcaps;
}
/**
* Check if user is allowed to publish post
*
* @param array $allcaps
* @param array $metacaps
*
* @return array
*
* @access protected
* @global WP_Post $post
*/
protected function authorizePublishPost($allcaps, $metacaps) {
global $post;
if (is_a($post, 'WP_Post')) {
$object = AAM::getUser()->getObject('post', $post->ID);
$area = AAM_Core_Api_Area::get();
if (!$this->isActionAllowed($area . '.publish', $object)) {
$allcaps = $this->restrictCapabilities($allcaps, $metacaps);
}
}
return $allcaps;
}
/**
* Check if action is allowed
*
* This method will take in consideration also *_others action
*
* @param string $action
* @param AAM_Core_Object_Post $object
*
* @return boolean
*
* @access protected
*/
protected function isActionAllowed($action, $object) {
$edit = $object->has($action);
$others = $object->has("{$action}_others");
$author = ($object->post_author == get_current_user_id());
return ($edit || ($others && !$author)) ? false : true;
}
/**
* Restrict user capabilities
*
* Iterate through the list of meta capabilities and disable them in the
* list of all user capabilities. Keep in mind that this disable caps only
* for one time call.
*
* @param array $allCaps
* @param array $metaCaps
*
* @return array
*
* @access protected
*/
protected function restrictCapabilities($allCaps, $metaCaps) {
foreach($metaCaps as $cap) {
$allCaps[$cap] = false;
}
return $allCaps;
}
/**
*
* @return type
*/
public static function getInstance() {
if (is_null(self::$_instance)) {
self::$_instance = self::bootstrap();
}
return self::$_instance;
}
}