関数 map_meta_cap()
2014/12/11
関数 map_meta_cap()
定義ファイル :/blog/wp-includes/capabilities.php
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 | function map_meta_cap( $cap, $user_id ) { $args = array_slice( func_get_args(), 2 ); $caps = array(); switch ( $cap ) { case 'remove_user': $caps[] = 'remove_users'; break; case 'promote_user': $caps[] = 'promote_users'; break; case 'edit_user': case 'edit_users': // Allow user to edit itself if ( 'edit_user' == $cap && isset( $args[0] ) && $user_id == $args[0] ) break; // If multisite these caps are allowed only for super admins. if ( is_multisite() && !is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = 'edit_users'; // edit_user maps to edit_users. break; case 'delete_post': case 'delete_page': $post = get_post( $args[0] ); if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'delete_post' == $cap ) $cap = $post_type->cap->$cap; break; } // If the post author is set and the user is the author... if ( $post->post_author && $user_id == $post->post_author ) { // If the post is published... if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->delete_published_posts; } elseif ( 'trash' == $post->post_status ) { if ( 'publish' == get_post_meta( $post->ID, '_wp_trash_meta_status', true ) ) { $caps[] = $post_type->cap->delete_published_posts; } } else { // If the post is draft... $caps[] = $post_type->cap->delete_posts; } } else { // The user is trying to edit someone else's post. $caps[] = $post_type->cap->delete_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->delete_published_posts; } elseif ( 'private' == $post->post_status ) { $caps[] = $post_type->cap->delete_private_posts; } } break; // edit_post breaks down to edit_posts, edit_published_posts, or // edit_others_posts case 'edit_post': case 'edit_page': $post = get_post( $args[0] ); if ( empty( $post ) ) break; if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'edit_post' == $cap ) $cap = $post_type->cap->$cap; break; } // If the post author is set and the user is the author... if ( $post->post_author && $user_id == $post->post_author ) { // If the post is published... if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->edit_published_posts; } elseif ( 'trash' == $post->post_status ) { if ( 'publish' == get_post_meta( $post->ID, '_wp_trash_meta_status', true ) ) { $caps[] = $post_type->cap->edit_published_posts; } } else { // If the post is draft... $caps[] = $post_type->cap->edit_posts; } } else { // The user is trying to edit someone else's post. $caps[] = $post_type->cap->edit_others_posts; // The post is published, extra cap required. if ( 'publish' == $post->post_status ) { $caps[] = $post_type->cap->edit_published_posts; } elseif ( 'private' == $post->post_status ) { $caps[] = $post_type->cap->edit_private_posts; } } break; case 'read_post': case 'read_page': $post = get_post( $args[0] ); if ( 'revision' == $post->post_type ) { $post = get_post( $post->post_parent ); } $post_type = get_post_type_object( $post->post_type ); if ( ! $post_type->map_meta_cap ) { $caps[] = $post_type->cap->$cap; // Prior to 3.1 we would re-call map_meta_cap here. if ( 'read_post' == $cap ) $cap = $post_type->cap->$cap; break; } $status_obj = get_post_status_object( $post->post_status ); if ( $status_obj->public ) { $caps[] = $post_type->cap->read; break; } if ( $post->post_author && $user_id == $post->post_author ) { $caps[] = $post_type->cap->read; } elseif ( $status_obj->private ) { $caps[] = $post_type->cap->read_private_posts; } else { $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); } break; case 'publish_post': $post = get_post( $args[0] ); $post_type = get_post_type_object( $post->post_type ); $caps[] = $post_type->cap->publish_posts; break; case 'edit_post_meta': case 'delete_post_meta': case 'add_post_meta': $post = get_post( $args[0] ); $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); $meta_key = isset( $args[ 1 ] ) ? $args[ 1 ] : false; if ( $meta_key && has_filter( "auth_post_meta_{$meta_key}" ) ) { /** * Filter whether the user is allowed to add post meta to a post. * * The dynamic portion of the hook name, $meta_key, refers to the * meta key passed to map_meta_cap(). * * @since 3.3.0 * * @param bool $allowed Whether the user can add the post meta. Default false. * @param string $meta_key The meta key. * @param int $post_id Post ID. * @param int $user_id User ID. * @param string $cap Capability name. * @param array $caps User capabilities. */ $allowed = apply_filters( "auth_post_meta_{$meta_key}", false, $meta_key, $post->ID, $user_id, $cap, $caps ); if ( ! $allowed ) $caps[] = $cap; } elseif ( $meta_key && is_protected_meta( $meta_key, 'post' ) ) { $caps[] = $cap; } break; case 'edit_comment': $comment = get_comment( $args[0] ); if ( empty( $comment ) ) break; $post = get_post( $comment->comment_post_ID ); $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); break; case 'unfiltered_upload': if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS && ( !is_multisite() || is_super_admin( $user_id ) ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'unfiltered_html' : // Disallow unfiltered_html for all users, even admins and super admins. if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) $caps[] = 'do_not_allow'; elseif ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = $cap; break; case 'edit_files': case 'edit_plugins': case 'edit_themes': // Disallow the file editors. if ( defined( 'DISALLOW_FILE_EDIT' ) && DISALLOW_FILE_EDIT ) $caps[] = 'do_not_allow'; elseif ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) $caps[] = 'do_not_allow'; elseif ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = $cap; break; case 'update_plugins': case 'delete_plugins': case 'install_plugins': case 'upload_plugins': case 'update_themes': case 'delete_themes': case 'install_themes': case 'upload_themes': case 'update_core': // Disallow anything that creates, deletes, or updates core, plugin, or theme files. // Files in uploads are excepted. if ( defined( 'DISALLOW_FILE_MODS' ) && DISALLOW_FILE_MODS ) { $caps[] = 'do_not_allow'; } elseif ( is_multisite() && ! is_super_admin( $user_id ) ) { $caps[] = 'do_not_allow'; } elseif ( 'upload_themes' === $cap ) { $caps[] = 'install_themes'; } elseif ( 'upload_plugins' === $cap ) { $caps[] = 'install_plugins'; } else { $caps[] = $cap; } break; case 'activate_plugins': $caps[] = $cap; if ( is_multisite() ) { // update_, install_, and delete_ are handled above with is_super_admin(). $menu_perms = get_site_option( 'menu_items', array() ); if ( empty( $menu_perms['plugins'] ) ) $caps[] = 'manage_network_plugins'; } break; case 'delete_user': case 'delete_users': // If multisite only super admins can delete users. if ( is_multisite() && ! is_super_admin( $user_id ) ) $caps[] = 'do_not_allow'; else $caps[] = 'delete_users'; // delete_user maps to delete_users. break; case 'create_users': if ( !is_multisite() ) $caps[] = $cap; elseif ( is_super_admin() || get_site_option( 'add_new_users' ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'manage_links' : if ( get_option( 'link_manager_enabled' ) ) $caps[] = $cap; else $caps[] = 'do_not_allow'; break; case 'customize' : $caps[] = 'edit_theme_options'; break; default: // Handle meta capabilities for custom post types. $post_type_meta_caps = _post_type_meta_capabilities(); if ( isset( $post_type_meta_caps[ $cap ] ) ) { $args = array_merge( array( $post_type_meta_caps[ $cap ], $user_id ), $args ); return call_user_func_array( 'map_meta_cap', $args ); } // If no meta caps match, return the original cap. $caps[] = $cap; } /** * Filter a user's capabilities depending on specific context and/or privilege. * * @since 2.8.0 * * @param array $caps Returns the user's actual capabilities. * @param string $cap Capability name. * @param int $user_id The user ID. * @param array $args Adds the context to the cap. Typically the object ID. */ return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); } |