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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:56:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 07:56:49 +0000 |
commit | a415c29efee45520ae252d2aa28f1083a521cd7b (patch) | |
tree | f4ade4b6668ecc0765de7e1424f7c1427ad433ff /wp-includes/capabilities.php | |
parent | Initial commit. (diff) | |
download | wordpress-a415c29efee45520ae252d2aa28f1083a521cd7b.tar.xz wordpress-a415c29efee45520ae252d2aa28f1083a521cd7b.zip |
Adding upstream version 6.4.3+dfsg1.upstream/6.4.3+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | wp-includes/capabilities.php | 1275 |
1 files changed, 1275 insertions, 0 deletions
diff --git a/wp-includes/capabilities.php b/wp-includes/capabilities.php new file mode 100644 index 0000000..26b150f --- /dev/null +++ b/wp-includes/capabilities.php @@ -0,0 +1,1275 @@ +<?php +/** + * Core User Role & Capabilities API + * + * @package WordPress + * @subpackage Users + */ + +/** + * Maps a capability to the primitive capabilities required of the given user to + * satisfy the capability being checked. + * + * This function also accepts an ID of an object to map against if the capability is a meta capability. Meta + * capabilities such as `edit_post` and `edit_user` are capabilities used by this function to map to primitive + * capabilities that a user or role requires, such as `edit_posts` and `edit_others_posts`. + * + * Example usage: + * + * map_meta_cap( 'edit_posts', $user->ID ); + * map_meta_cap( 'edit_post', $user->ID, $post->ID ); + * map_meta_cap( 'edit_post_meta', $user->ID, $post->ID, $meta_key ); + * + * This function does not check whether the user has the required capabilities, + * it just returns what the required capabilities are. + * + * @since 2.0.0 + * @since 4.9.6 Added the `export_others_personal_data`, `erase_others_personal_data`, + * and `manage_privacy_options` capabilities. + * @since 5.1.0 Added the `update_php` capability. + * @since 5.2.0 Added the `resume_plugin` and `resume_theme` capabilities. + * @since 5.3.0 Formalized the existing and already documented `...$args` parameter + * by adding it to the function signature. + * @since 5.7.0 Added the `create_app_password`, `list_app_passwords`, `read_app_password`, + * `edit_app_password`, `delete_app_passwords`, `delete_app_password`, + * and `update_https` capabilities. + * + * @global array $post_type_meta_caps Used to get post type meta capabilities. + * + * @param string $cap Capability being checked. + * @param int $user_id User ID. + * @param mixed ...$args Optional further parameters, typically starting with an object ID. + * @return string[] Primitive capabilities required of the user. + */ +function map_meta_cap( $cap, $user_id, ...$args ) { + $caps = array(); + + switch ( $cap ) { + case 'remove_user': + // In multisite the user must be a super admin to remove themselves. + if ( isset( $args[0] ) && $user_id == $args[0] && ! is_super_admin( $user_id ) ) { + $caps[] = 'do_not_allow'; + } else { + $caps[] = 'remove_users'; + } + break; + case 'promote_user': + case 'add_users': + $caps[] = 'promote_users'; + break; + case 'edit_user': + case 'edit_users': + // Allow user to edit themselves. + if ( 'edit_user' === $cap && isset( $args[0] ) && $user_id == $args[0] ) { + break; + } + + // In multisite the user must have manage_network_users caps. If editing a super admin, the user must be a super admin. + if ( is_multisite() && ( ( ! is_super_admin( $user_id ) && 'edit_user' === $cap && is_super_admin( $args[0] ) ) || ! user_can( $user_id, 'manage_network_users' ) ) ) { + $caps[] = 'do_not_allow'; + } else { + $caps[] = 'edit_users'; // edit_user maps to edit_users. + } + break; + case 'delete_post': + case 'delete_page': + if ( ! isset( $args[0] ) ) { + if ( 'delete_post' === $cap ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific post.' ); + } else { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific page.' ); + } + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $post = get_post( $args[0] ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + + if ( 'revision' === $post->post_type ) { + $caps[] = 'do_not_allow'; + break; + } + + if ( ( get_option( 'page_for_posts' ) == $post->ID ) || ( get_option( 'page_on_front' ) == $post->ID ) ) { + $caps[] = 'manage_options'; + break; + } + + $post_type = get_post_type_object( $post->post_type ); + if ( ! $post_type ) { + /* translators: 1: Post type, 2: Capability name. */ + $message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( + $message, + '<code>' . $post->post_type . '</code>', + '<code>' . $cap . '</code>' + ), + '4.4.0' + ); + + $caps[] = 'edit_others_posts'; + break; + } + + 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 or scheduled... + if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->delete_published_posts; + } elseif ( 'trash' === $post->post_status ) { + $status = get_post_meta( $post->ID, '_wp_trash_meta_status', true ); + if ( in_array( $status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->delete_published_posts; + } else { + $caps[] = $post_type->cap->delete_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 or scheduled, extra cap required. + if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->delete_published_posts; + } elseif ( 'private' === $post->post_status ) { + $caps[] = $post_type->cap->delete_private_posts; + } + } + + /* + * Setting the privacy policy page requires `manage_privacy_options`, + * so deleting it should require that too. + */ + if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) { + $caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) ); + } + + break; + /* + * edit_post breaks down to edit_posts, edit_published_posts, or + * edit_others_posts. + */ + case 'edit_post': + case 'edit_page': + if ( ! isset( $args[0] ) ) { + if ( 'edit_post' === $cap ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific post.' ); + } else { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific page.' ); + } + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $post = get_post( $args[0] ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + + if ( 'revision' === $post->post_type ) { + $post = get_post( $post->post_parent ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + } + + $post_type = get_post_type_object( $post->post_type ); + if ( ! $post_type ) { + /* translators: 1: Post type, 2: Capability name. */ + $message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( + $message, + '<code>' . $post->post_type . '</code>', + '<code>' . $cap . '</code>' + ), + '4.4.0' + ); + + $caps[] = 'edit_others_posts'; + break; + } + + 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 or scheduled... + if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->edit_published_posts; + } elseif ( 'trash' === $post->post_status ) { + $status = get_post_meta( $post->ID, '_wp_trash_meta_status', true ); + if ( in_array( $status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->edit_published_posts; + } else { + $caps[] = $post_type->cap->edit_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 or scheduled, extra cap required. + if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) { + $caps[] = $post_type->cap->edit_published_posts; + } elseif ( 'private' === $post->post_status ) { + $caps[] = $post_type->cap->edit_private_posts; + } + } + + /* + * Setting the privacy policy page requires `manage_privacy_options`, + * so editing it should require that too. + */ + if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) { + $caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) ); + } + + break; + case 'read_post': + case 'read_page': + if ( ! isset( $args[0] ) ) { + if ( 'read_post' === $cap ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific post.' ); + } else { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific page.' ); + } + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $post = get_post( $args[0] ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + + if ( 'revision' === $post->post_type ) { + $post = get_post( $post->post_parent ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + } + + $post_type = get_post_type_object( $post->post_type ); + if ( ! $post_type ) { + /* translators: 1: Post type, 2: Capability name. */ + $message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( + $message, + '<code>' . $post->post_type . '</code>', + '<code>' . $cap . '</code>' + ), + '4.4.0' + ); + + $caps[] = 'edit_others_posts'; + break; + } + + 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( get_post_status( $post ) ); + if ( ! $status_obj ) { + /* translators: 1: Post status, 2: Capability name. */ + $message = __( 'The post status %1$s is not registered, so it may not be reliable to check the capability %2$s against a post with that status.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( + $message, + '<code>' . get_post_status( $post ) . '</code>', + '<code>' . $cap . '</code>' + ), + '5.4.0' + ); + + $caps[] = 'edit_others_posts'; + break; + } + + 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': + if ( ! isset( $args[0] ) ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific post.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $post = get_post( $args[0] ); + if ( ! $post ) { + $caps[] = 'do_not_allow'; + break; + } + + $post_type = get_post_type_object( $post->post_type ); + if ( ! $post_type ) { + /* translators: 1: Post type, 2: Capability name. */ + $message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( + $message, + '<code>' . $post->post_type . '</code>', + '<code>' . $cap . '</code>' + ), + '4.4.0' + ); + + $caps[] = 'edit_others_posts'; + break; + } + + $caps[] = $post_type->cap->publish_posts; + break; + case 'edit_post_meta': + case 'delete_post_meta': + case 'add_post_meta': + case 'edit_comment_meta': + case 'delete_comment_meta': + case 'add_comment_meta': + case 'edit_term_meta': + case 'delete_term_meta': + case 'add_term_meta': + case 'edit_user_meta': + case 'delete_user_meta': + case 'add_user_meta': + $object_type = explode( '_', $cap )[1]; + + if ( ! isset( $args[0] ) ) { + if ( 'post' === $object_type ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific post.' ); + } elseif ( 'comment' === $object_type ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific comment.' ); + } elseif ( 'term' === $object_type ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific term.' ); + } else { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific user.' ); + } + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $object_id = (int) $args[0]; + + $object_subtype = get_object_subtype( $object_type, $object_id ); + + if ( empty( $object_subtype ) ) { + $caps[] = 'do_not_allow'; + break; + } + + $caps = map_meta_cap( "edit_{$object_type}", $user_id, $object_id ); + + $meta_key = isset( $args[1] ) ? $args[1] : false; + + if ( $meta_key ) { + $allowed = ! is_protected_meta( $meta_key, $object_type ); + + if ( ! empty( $object_subtype ) && has_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" ) ) { + + /** + * Filters whether the user is allowed to edit a specific meta key of a specific object type and subtype. + * + * The dynamic portions of the hook name, `$object_type`, `$meta_key`, + * and `$object_subtype`, refer to the metadata object type (comment, post, term or user), + * the meta key value, and the object subtype respectively. + * + * @since 4.9.8 + * + * @param bool $allowed Whether the user can add the object meta. Default false. + * @param string $meta_key The meta key. + * @param int $object_id Object ID. + * @param int $user_id User ID. + * @param string $cap Capability name. + * @param string[] $caps Array of the user's capabilities. + */ + $allowed = apply_filters( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps ); + } else { + + /** + * Filters whether the user is allowed to edit a specific meta key of a specific object type. + * + * Return true to have the mapped meta caps from `edit_{$object_type}` apply. + * + * The dynamic portion of the hook name, `$object_type` refers to the object type being filtered. + * The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap(). + * + * @since 3.3.0 As `auth_post_meta_{$meta_key}`. + * @since 4.6.0 + * + * @param bool $allowed Whether the user can add the object meta. Default false. + * @param string $meta_key The meta key. + * @param int $object_id Object ID. + * @param int $user_id User ID. + * @param string $cap Capability name. + * @param string[] $caps Array of the user's capabilities. + */ + $allowed = apply_filters( "auth_{$object_type}_meta_{$meta_key}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps ); + } + + if ( ! empty( $object_subtype ) ) { + + /** + * Filters whether the user is allowed to edit meta for specific object types/subtypes. + * + * Return true to have the mapped meta caps from `edit_{$object_type}` apply. + * + * The dynamic portion of the hook name, `$object_type` refers to the object type being filtered. + * The dynamic portion of the hook name, `$object_subtype` refers to the object subtype being filtered. + * The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap(). + * + * @since 4.6.0 As `auth_post_{$post_type}_meta_{$meta_key}`. + * @since 4.7.0 Renamed from `auth_post_{$post_type}_meta_{$meta_key}` to + * `auth_{$object_type}_{$object_subtype}_meta_{$meta_key}`. + * @deprecated 4.9.8 Use {@see 'auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}'} instead. + * + * @param bool $allowed Whether the user can add the object meta. Default false. + * @param string $meta_key The meta key. + * @param int $object_id Object ID. + * @param int $user_id User ID. + * @param string $cap Capability name. + * @param string[] $caps Array of the user's capabilities. + */ + $allowed = apply_filters_deprecated( + "auth_{$object_type}_{$object_subtype}_meta_{$meta_key}", + array( $allowed, $meta_key, $object_id, $user_id, $cap, $caps ), + '4.9.8', + "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" + ); + } + + if ( ! $allowed ) { + $caps[] = $cap; + } + } + break; + case 'edit_comment': + if ( ! isset( $args[0] ) ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific comment.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $comment = get_comment( $args[0] ); + if ( ! $comment ) { + $caps[] = 'do_not_allow'; + break; + } + + $post = get_post( $comment->comment_post_ID ); + + /* + * If the post doesn't exist, we have an orphaned comment. + * Fall back to the edit_posts capability, instead. + */ + if ( $post ) { + $caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); + } else { + $caps = map_meta_cap( 'edit_posts', $user_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 'edit_css': + 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[] = 'unfiltered_html'; + } + 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 ( ! wp_is_file_mod_allowed( 'capability_edit_themes' ) ) { + $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 ( ! wp_is_file_mod_allowed( 'capability_update_core' ) ) { + $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 'install_languages': + case 'update_languages': + if ( ! wp_is_file_mod_allowed( 'can_install_language_pack' ) ) { + $caps[] = 'do_not_allow'; + } elseif ( is_multisite() && ! is_super_admin( $user_id ) ) { + $caps[] = 'do_not_allow'; + } else { + $caps[] = 'install_languages'; + } + break; + case 'activate_plugins': + case 'deactivate_plugins': + case 'activate_plugin': + case 'deactivate_plugin': + $caps[] = 'activate_plugins'; + 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 'resume_plugin': + $caps[] = 'resume_plugins'; + break; + case 'resume_theme': + $caps[] = 'resume_themes'; + 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( $user_id ) || 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; + case 'delete_site': + if ( is_multisite() ) { + $caps[] = 'manage_options'; + } else { + $caps[] = 'do_not_allow'; + } + break; + case 'edit_term': + case 'delete_term': + case 'assign_term': + if ( ! isset( $args[0] ) ) { + /* translators: %s: Capability name. */ + $message = __( 'When checking for the %s capability, you must always check it against a specific term.' ); + + _doing_it_wrong( + __FUNCTION__, + sprintf( $message, '<code>' . $cap . '</code>' ), + '6.1.0' + ); + + $caps[] = 'do_not_allow'; + break; + } + + $term_id = (int) $args[0]; + $term = get_term( $term_id ); + if ( ! $term || is_wp_error( $term ) ) { + $caps[] = 'do_not_allow'; + break; + } + + $tax = get_taxonomy( $term->taxonomy ); + if ( ! $tax ) { + $caps[] = 'do_not_allow'; + break; + } + + if ( 'delete_term' === $cap + && ( get_option( 'default_' . $term->taxonomy ) == $term->term_id + || get_option( 'default_term_' . $term->taxonomy ) == $term->term_id ) + ) { + $caps[] = 'do_not_allow'; + break; + } + + $taxo_cap = $cap . 's'; + + $caps = map_meta_cap( $tax->cap->$taxo_cap, $user_id, $term_id ); + + break; + case 'manage_post_tags': + case 'edit_categories': + case 'edit_post_tags': + case 'delete_categories': + case 'delete_post_tags': + $caps[] = 'manage_categories'; + break; + case 'assign_categories': + case 'assign_post_tags': + $caps[] = 'edit_posts'; + break; + case 'create_sites': + case 'delete_sites': + case 'manage_network': + case 'manage_sites': + case 'manage_network_users': + case 'manage_network_plugins': + case 'manage_network_themes': + case 'manage_network_options': + case 'upgrade_network': + $caps[] = $cap; + break; + case 'setup_network': + if ( is_multisite() ) { + $caps[] = 'manage_network_options'; + } else { + $caps[] = 'manage_options'; + } + break; + case 'update_php': + if ( is_multisite() && ! is_super_admin( $user_id ) ) { + $caps[] = 'do_not_allow'; + } else { + $caps[] = 'update_core'; + } + break; + case 'update_https': + if ( is_multisite() && ! is_super_admin( $user_id ) ) { + $caps[] = 'do_not_allow'; + } else { + $caps[] = 'manage_options'; + $caps[] = 'update_core'; + } + break; + case 'export_others_personal_data': + case 'erase_others_personal_data': + case 'manage_privacy_options': + $caps[] = is_multisite() ? 'manage_network' : 'manage_options'; + break; + case 'create_app_password': + case 'list_app_passwords': + case 'read_app_password': + case 'edit_app_password': + case 'delete_app_passwords': + case 'delete_app_password': + $caps = map_meta_cap( 'edit_user', $user_id, $args[0] ); + break; + default: + // Handle meta capabilities for custom post types. + global $post_type_meta_caps; + if ( isset( $post_type_meta_caps[ $cap ] ) ) { + return map_meta_cap( $post_type_meta_caps[ $cap ], $user_id, ...$args ); + } + + // Block capabilities map to their post equivalent. + $block_caps = array( + 'edit_blocks', + 'edit_others_blocks', + 'publish_blocks', + 'read_private_blocks', + 'delete_blocks', + 'delete_private_blocks', + 'delete_published_blocks', + 'delete_others_blocks', + 'edit_private_blocks', + 'edit_published_blocks', + ); + if ( in_array( $cap, $block_caps, true ) ) { + $cap = str_replace( '_blocks', '_posts', $cap ); + } + + // If no meta caps match, return the original cap. + $caps[] = $cap; + } + + /** + * Filters the primitive capabilities required of the given user to satisfy the + * capability being checked. + * + * @since 2.8.0 + * + * @param string[] $caps Primitive capabilities required of the user. + * @param string $cap Capability being checked. + * @param int $user_id The user ID. + * @param array $args Adds context to the capability check, typically + * starting with an object ID. + */ + return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args ); +} + +/** + * Returns whether the current user has the specified capability. + * + * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta + * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to + * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. + * + * Example usage: + * + * current_user_can( 'edit_posts' ); + * current_user_can( 'edit_post', $post->ID ); + * current_user_can( 'edit_post_meta', $post->ID, $meta_key ); + * + * While checking against particular roles in place of a capability is supported + * in part, this practice is discouraged as it may produce unreliable results. + * + * Note: Will always return true if the current user is a super admin, unless specifically denied. + * + * @since 2.0.0 + * @since 5.3.0 Formalized the existing and already documented `...$args` parameter + * by adding it to the function signature. + * @since 5.8.0 Converted to wrapper for the user_can() function. + * + * @see WP_User::has_cap() + * @see map_meta_cap() + * + * @param string $capability Capability name. + * @param mixed ...$args Optional further parameters, typically starting with an object ID. + * @return bool Whether the current user has the given capability. If `$capability` is a meta cap and `$object_id` is + * passed, whether the current user has the given meta capability for the given object. + */ +function current_user_can( $capability, ...$args ) { + return user_can( wp_get_current_user(), $capability, ...$args ); +} + +/** + * Returns whether the current user has the specified capability for a given site. + * + * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta + * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to + * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. + * + * Example usage: + * + * current_user_can_for_blog( $blog_id, 'edit_posts' ); + * current_user_can_for_blog( $blog_id, 'edit_post', $post->ID ); + * current_user_can_for_blog( $blog_id, 'edit_post_meta', $post->ID, $meta_key ); + * + * @since 3.0.0 + * @since 5.3.0 Formalized the existing and already documented `...$args` parameter + * by adding it to the function signature. + * @since 5.8.0 Wraps current_user_can() after switching to blog. + * + * @param int $blog_id Site ID. + * @param string $capability Capability name. + * @param mixed ...$args Optional further parameters, typically starting with an object ID. + * @return bool Whether the user has the given capability. + */ +function current_user_can_for_blog( $blog_id, $capability, ...$args ) { + $switched = is_multisite() ? switch_to_blog( $blog_id ) : false; + + $can = current_user_can( $capability, ...$args ); + + if ( $switched ) { + restore_current_blog(); + } + + return $can; +} + +/** + * Returns whether the author of the supplied post has the specified capability. + * + * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta + * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to + * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. + * + * Example usage: + * + * author_can( $post, 'edit_posts' ); + * author_can( $post, 'edit_post', $post->ID ); + * author_can( $post, 'edit_post_meta', $post->ID, $meta_key ); + * + * @since 2.9.0 + * @since 5.3.0 Formalized the existing and already documented `...$args` parameter + * by adding it to the function signature. + * + * @param int|WP_Post $post Post ID or post object. + * @param string $capability Capability name. + * @param mixed ...$args Optional further parameters, typically starting with an object ID. + * @return bool Whether the post author has the given capability. + */ +function author_can( $post, $capability, ...$args ) { + $post = get_post( $post ); + if ( ! $post ) { + return false; + } + + $author = get_userdata( $post->post_author ); + + if ( ! $author ) { + return false; + } + + return $author->has_cap( $capability, ...$args ); +} + +/** + * Returns whether a particular user has the specified capability. + * + * This function also accepts an ID of an object to check against if the capability is a meta capability. Meta + * capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to + * map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`. + * + * Example usage: + * + * user_can( $user->ID, 'edit_posts' ); + * user_can( $user->ID, 'edit_post', $post->ID ); + * user_can( $user->ID, 'edit_post_meta', $post->ID, $meta_key ); + * + * @since 3.1.0 + * @since 5.3.0 Formalized the existing and already documented `...$args` parameter + * by adding it to the function signature. + * + * @param int|WP_User $user User ID or object. + * @param string $capability Capability name. + * @param mixed ...$args Optional further parameters, typically starting with an object ID. + * @return bool Whether the user has the given capability. + */ +function user_can( $user, $capability, ...$args ) { + if ( ! is_object( $user ) ) { + $user = get_userdata( $user ); + } + + if ( empty( $user ) ) { + // User is logged out, create anonymous user object. + $user = new WP_User( 0 ); + $user->init( new stdClass() ); + } + + return $user->has_cap( $capability, ...$args ); +} + +/** + * Retrieves the global WP_Roles instance and instantiates it if necessary. + * + * @since 4.3.0 + * + * @global WP_Roles $wp_roles WordPress role management object. + * + * @return WP_Roles WP_Roles global instance if not already instantiated. + */ +function wp_roles() { + global $wp_roles; + + if ( ! isset( $wp_roles ) ) { + $wp_roles = new WP_Roles(); + } + return $wp_roles; +} + +/** + * Retrieves role object. + * + * @since 2.0.0 + * + * @param string $role Role name. + * @return WP_Role|null WP_Role object if found, null if the role does not exist. + */ +function get_role( $role ) { + return wp_roles()->get_role( $role ); +} + +/** + * Adds a role, if it does not exist. + * + * @since 2.0.0 + * + * @param string $role Role name. + * @param string $display_name Display name for role. + * @param bool[] $capabilities List of capabilities keyed by the capability name, + * e.g. array( 'edit_posts' => true, 'delete_posts' => false ). + * @return WP_Role|void WP_Role object, if the role is added. + */ +function add_role( $role, $display_name, $capabilities = array() ) { + if ( empty( $role ) ) { + return; + } + + return wp_roles()->add_role( $role, $display_name, $capabilities ); +} + +/** + * Removes a role, if it exists. + * + * @since 2.0.0 + * + * @param string $role Role name. + */ +function remove_role( $role ) { + wp_roles()->remove_role( $role ); +} + +/** + * Retrieves a list of super admins. + * + * @since 3.0.0 + * + * @global array $super_admins + * + * @return string[] List of super admin logins. + */ +function get_super_admins() { + global $super_admins; + + if ( isset( $super_admins ) ) { + return $super_admins; + } else { + return get_site_option( 'site_admins', array( 'admin' ) ); + } +} + +/** + * Determines whether user is a site admin. + * + * @since 3.0.0 + * + * @param int|false $user_id Optional. The ID of a user. Defaults to false, to check the current user. + * @return bool Whether the user is a site admin. + */ +function is_super_admin( $user_id = false ) { + if ( ! $user_id ) { + $user = wp_get_current_user(); + } else { + $user = get_userdata( $user_id ); + } + + if ( ! $user || ! $user->exists() ) { + return false; + } + + if ( is_multisite() ) { + $super_admins = get_super_admins(); + if ( is_array( $super_admins ) && in_array( $user->user_login, $super_admins, true ) ) { + return true; + } + } else { + if ( $user->has_cap( 'delete_users' ) ) { + return true; + } + } + + return false; +} + +/** + * Grants Super Admin privileges. + * + * @since 3.0.0 + * + * @global array $super_admins + * + * @param int $user_id ID of the user to be granted Super Admin privileges. + * @return bool True on success, false on failure. This can fail when the user is + * already a super admin or when the `$super_admins` global is defined. + */ +function grant_super_admin( $user_id ) { + // If global super_admins override is defined, there is nothing to do here. + if ( isset( $GLOBALS['super_admins'] ) || ! is_multisite() ) { + return false; + } + + /** + * Fires before the user is granted Super Admin privileges. + * + * @since 3.0.0 + * + * @param int $user_id ID of the user that is about to be granted Super Admin privileges. + */ + do_action( 'grant_super_admin', $user_id ); + + // Directly fetch site_admins instead of using get_super_admins(). + $super_admins = get_site_option( 'site_admins', array( 'admin' ) ); + + $user = get_userdata( $user_id ); + if ( $user && ! in_array( $user->user_login, $super_admins, true ) ) { + $super_admins[] = $user->user_login; + update_site_option( 'site_admins', $super_admins ); + + /** + * Fires after the user is granted Super Admin privileges. + * + * @since 3.0.0 + * + * @param int $user_id ID of the user that was granted Super Admin privileges. + */ + do_action( 'granted_super_admin', $user_id ); + return true; + } + return false; +} + +/** + * Revokes Super Admin privileges. + * + * @since 3.0.0 + * + * @global array $super_admins + * + * @param int $user_id ID of the user Super Admin privileges to be revoked from. + * @return bool True on success, false on failure. This can fail when the user's email + * is the network admin email or when the `$super_admins` global is defined. + */ +function revoke_super_admin( $user_id ) { + // If global super_admins override is defined, there is nothing to do here. + if ( isset( $GLOBALS['super_admins'] ) || ! is_multisite() ) { + return false; + } + + /** + * Fires before the user's Super Admin privileges are revoked. + * + * @since 3.0.0 + * + * @param int $user_id ID of the user Super Admin privileges are being revoked from. + */ + do_action( 'revoke_super_admin', $user_id ); + + // Directly fetch site_admins instead of using get_super_admins(). + $super_admins = get_site_option( 'site_admins', array( 'admin' ) ); + + $user = get_userdata( $user_id ); + if ( $user && 0 !== strcasecmp( $user->user_email, get_site_option( 'admin_email' ) ) ) { + $key = array_search( $user->user_login, $super_admins, true ); + if ( false !== $key ) { + unset( $super_admins[ $key ] ); + update_site_option( 'site_admins', $super_admins ); + + /** + * Fires after the user's Super Admin privileges are revoked. + * + * @since 3.0.0 + * + * @param int $user_id ID of the user Super Admin privileges were revoked from. + */ + do_action( 'revoked_super_admin', $user_id ); + return true; + } + } + return false; +} + +/** + * Filters the user capabilities to grant the 'install_languages' capability as necessary. + * + * A user must have at least one out of the 'update_core', 'install_plugins', and + * 'install_themes' capabilities to qualify for 'install_languages'. + * + * @since 4.9.0 + * + * @param bool[] $allcaps An array of all the user's capabilities. + * @return bool[] Filtered array of the user's capabilities. + */ +function wp_maybe_grant_install_languages_cap( $allcaps ) { + if ( ! empty( $allcaps['update_core'] ) || ! empty( $allcaps['install_plugins'] ) || ! empty( $allcaps['install_themes'] ) ) { + $allcaps['install_languages'] = true; + } + + return $allcaps; +} + +/** + * Filters the user capabilities to grant the 'resume_plugins' and 'resume_themes' capabilities as necessary. + * + * @since 5.2.0 + * + * @param bool[] $allcaps An array of all the user's capabilities. + * @return bool[] Filtered array of the user's capabilities. + */ +function wp_maybe_grant_resume_extensions_caps( $allcaps ) { + // Even in a multisite, regular administrators should be able to resume plugins. + if ( ! empty( $allcaps['activate_plugins'] ) ) { + $allcaps['resume_plugins'] = true; + } + + // Even in a multisite, regular administrators should be able to resume themes. + if ( ! empty( $allcaps['switch_themes'] ) ) { + $allcaps['resume_themes'] = true; + } + + return $allcaps; +} + +/** + * Filters the user capabilities to grant the 'view_site_health_checks' capabilities as necessary. + * + * @since 5.2.2 + * + * @param bool[] $allcaps An array of all the user's capabilities. + * @param string[] $caps Required primitive capabilities for the requested capability. + * @param array $args { + * Arguments that accompany the requested capability check. + * + * @type string $0 Requested capability. + * @type int $1 Concerned user ID. + * @type mixed ...$2 Optional second and further parameters, typically object ID. + * } + * @param WP_User $user The user object. + * @return bool[] Filtered array of the user's capabilities. + */ +function wp_maybe_grant_site_health_caps( $allcaps, $caps, $args, $user ) { + if ( ! empty( $allcaps['install_plugins'] ) && ( ! is_multisite() || is_super_admin( $user->ID ) ) ) { + $allcaps['view_site_health_checks'] = true; + } + + return $allcaps; +} + +return; + +// Dummy gettext calls to get strings in the catalog. +/* translators: User role for administrators. */ +_x( 'Administrator', 'User role' ); +/* translators: User role for editors. */ +_x( 'Editor', 'User role' ); +/* translators: User role for authors. */ +_x( 'Author', 'User role' ); +/* translators: User role for contributors. */ +_x( 'Contributor', 'User role' ); +/* translators: User role for subscribers. */ +_x( 'Subscriber', 'User role' ); |