Filter.php
211 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * ====================================================================== |
| 5 | * LICENSE: This file is subject to the terms and conditions defined in * |
| 6 | * file 'license.txt', which is part of this source code package. * |
| 7 | * ====================================================================== |
| 8 | */ |
| 9 | |
| 10 | /** |
| 11 | * AAM frontend filter |
| 12 | * |
| 13 | * @package AAM |
| 14 | * @author Vasyl Martyniuk <vasyl@vasyltech.com> |
| 15 | */ |
| 16 | class AAM_Frontend_Filter { |
| 17 | |
| 18 | /** |
| 19 | * Instance of itself |
| 20 | * |
| 21 | * @var AAM_Frontend_Filter |
| 22 | * |
| 23 | * @access private |
| 24 | */ |
| 25 | private static $_instance = null; |
| 26 | |
| 27 | /** |
| 28 | * Constructor |
| 29 | * |
| 30 | * @return void |
| 31 | * |
| 32 | * @access protected |
| 33 | */ |
| 34 | protected function __construct() { |
| 35 | //bootstrap authorization layer |
| 36 | AAM_Frontend_Authorization::bootstrap(); |
| 37 | |
| 38 | //manage access to frontend posts & pages |
| 39 | add_action('wp', array($this, 'wp'), 999); |
| 40 | add_action('404_template', array($this, 'themeRedirect'), 999); |
| 41 | |
| 42 | // TODO: figure out how to remove these two hooks and inject "visibility" |
| 43 | // object instead |
| 44 | //filter navigation pages & taxonomies |
| 45 | add_filter('wp_get_nav_menu_items', array($this, 'getNavigationMenu'), 999); |
| 46 | // filter navigation pages & taxonomies |
| 47 | add_filter('get_pages', array($this, 'filterPages'), 999); |
| 48 | |
| 49 | //widget filters |
| 50 | add_filter('sidebars_widgets', array($this, 'filterWidgets'), 999); |
| 51 | |
| 52 | //get control over commenting stuff |
| 53 | add_filter('comments_open', array($this, 'commentOpen'), 10, 2); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Main frontend access control hook |
| 58 | * |
| 59 | * @return void |
| 60 | * |
| 61 | * @access public |
| 62 | * @global WP_Post $post |
| 63 | */ |
| 64 | public function wp() { |
| 65 | global $wp_query; |
| 66 | |
| 67 | if ($wp_query->is_404) { // Handle 404 redirect |
| 68 | $type = AAM_Core_Config::get('frontend.404redirect.type', 'default'); |
| 69 | do_action('aam-access-rejected-action', 'frontend', array( |
| 70 | 'hook' => 'aam_404', |
| 71 | 'uri' => AAM_Core_Request::server('REQUEST_URI') |
| 72 | )); |
| 73 | |
| 74 | if ($type !== 'default') { |
| 75 | AAM_Core_API::redirect( |
| 76 | AAM_Core_Config::get("frontend.404redirect.{$type}") |
| 77 | ); |
| 78 | } |
| 79 | } elseif ($wp_query->is_single || $wp_query->is_page |
| 80 | || $wp_query->is_posts_page || $wp_query->is_home) { |
| 81 | $post = AAM_Core_API::getCurrentPost(); |
| 82 | |
| 83 | if ($post) { |
| 84 | AAM_Frontend_Authorization::getInstance()->chechReadAuth($post); |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Theme redirect |
| 91 | * |
| 92 | * Super important function that cover the 404 redirect that triggered by theme |
| 93 | * when page is not found. This covers the scenario when page is restricted from |
| 94 | * listing and read. |
| 95 | * |
| 96 | * @global type $wp_query |
| 97 | * |
| 98 | * @param type $template |
| 99 | * |
| 100 | * @return string |
| 101 | * |
| 102 | * @access public |
| 103 | */ |
| 104 | public function themeRedirect($template) { |
| 105 | $post = AAM_Core_API::getCurrentPost(); |
| 106 | |
| 107 | if ($post) { |
| 108 | AAM_Frontend_Authorization::getInstance()->chechReadAuth($post); |
| 109 | } |
| 110 | |
| 111 | return $template; |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Filter Navigation menu |
| 116 | * |
| 117 | * @param array $pages |
| 118 | * |
| 119 | * @return array |
| 120 | * |
| 121 | * @access public |
| 122 | */ |
| 123 | public function getNavigationMenu($pages) { |
| 124 | if (is_array($pages)) { |
| 125 | foreach ($pages as $i => $page) { |
| 126 | if (in_array($page->type, array('post_type', 'custom'), true)) { |
| 127 | $object = AAM::getUser()->getObject('post', $page->object_id); |
| 128 | if (!$object->allowed('frontend.list')) { |
| 129 | unset($pages[$i]); |
| 130 | } |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | return $pages; |
| 136 | } |
| 137 | |
| 138 | /** |
| 139 | * Filter posts from the list |
| 140 | * |
| 141 | * @param array $pages |
| 142 | * |
| 143 | * @return array |
| 144 | * |
| 145 | * @access public |
| 146 | */ |
| 147 | public function filterPages($pages) { |
| 148 | $current = AAM_Core_API::getCurrentPost(); |
| 149 | |
| 150 | if (is_array($pages)) { |
| 151 | $area = AAM_Core_Api_Area::get(); |
| 152 | |
| 153 | foreach ($pages as $i => $post) { |
| 154 | if ($current && ($current->ID === $post->ID)) { continue; } |
| 155 | |
| 156 | // TODO: refactor this to AAM API standalone |
| 157 | $object = AAM::getUser()->getObject('post', $post->ID); |
| 158 | if (!$object->allowed($area. '.list')) { |
| 159 | unset($pages[$i]); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | $pages = array_values($pages); |
| 164 | } |
| 165 | |
| 166 | return $pages; |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * Filter frontend widgets |
| 171 | * |
| 172 | * @param array $widgets |
| 173 | * |
| 174 | * @return array |
| 175 | * |
| 176 | * @access public |
| 177 | */ |
| 178 | public function filterWidgets($widgets) { |
| 179 | return AAM::getUser()->getObject('metabox')->filterFrontend($widgets); |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * Control frontend commenting feature |
| 184 | * |
| 185 | * @param boolean $open |
| 186 | * @param int $post_id |
| 187 | * |
| 188 | * @return boolean |
| 189 | * |
| 190 | * @access public |
| 191 | */ |
| 192 | public function commentOpen($open, $post_id) { |
| 193 | $object = AAM::getUser()->getObject('post', $post_id); |
| 194 | |
| 195 | return ($object->has('frontend.comment') ? false : $open); |
| 196 | } |
| 197 | |
| 198 | /** |
| 199 | * Register backend filters and actions |
| 200 | * |
| 201 | * @return void |
| 202 | * |
| 203 | * @access public |
| 204 | */ |
| 205 | public static function register() { |
| 206 | if (is_null(self::$_instance)) { |
| 207 | self::$_instance = new self; |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | } |