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<?php |
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/** |
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* Single-topic render guards. |
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* |
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* Theme-compat runs display_topic() during template_include. If |
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* bbp_is_single_topic() is false at that moment, bbp_has_replies() defaults |
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* to post_parent=any and can load every topic and reply. Capability mapping |
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* then fans out until PHP hits the memory limit. |
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* |
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* @package Forumax |
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*/ |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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/** |
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* Resolve the topic being rendered, without calling bbp_is_single_topic(). |
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* |
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* @return int Topic ID or 0. |
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*/ |
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function forumax_resolve_current_topic_id() { |
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if ( function_exists( 'bbpress' ) ) { |
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$current = (int) bbpress()->current_topic_id; |
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if ( $current > 0 ) { |
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return $current; |
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} |
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} |
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|
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$object = get_queried_object(); |
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if ( $object instanceof WP_Post && function_exists( 'bbp_get_topic_post_type' ) && bbp_get_topic_post_type() === $object->post_type ) { |
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return (int) $object->ID; |
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} |
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|
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return 0; |
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} |
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|
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/** |
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* Seed current_topic_id as soon as the main query is a topic. |
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* |
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* @return void |
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*/ |
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function forumax_prime_current_topic_id() { |
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if ( ! function_exists( 'bbpress' ) || ! function_exists( 'bbp_get_topic_post_type' ) ) { |
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return; |
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} |
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|
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if ( ! empty( bbpress()->current_topic_id ) ) { |
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return; |
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} |
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|
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if ( is_singular( bbp_get_topic_post_type() ) ) { |
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$topic_id = (int) get_queried_object_id(); |
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if ( $topic_id > 0 ) { |
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bbpress()->current_topic_id = $topic_id; |
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} |
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} |
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} |
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add_action( 'wp', 'forumax_prime_current_topic_id', 1 ); |
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|
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/** |
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* Treat a primed topic ID as a single-topic view. |
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* |
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* @param bool $is_single_topic Current detection result. |
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* @return bool |
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*/ |
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function forumax_filter_is_single_topic( $is_single_topic ) { |
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if ( $is_single_topic ) { |
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return true; |
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} |
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|
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if ( function_exists( 'bbp_is_topic_edit' ) && bbp_is_topic_edit() ) { |
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return false; |
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} |
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|
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return forumax_resolve_current_topic_id() > 0; |
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} |
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add_filter( 'bbp_is_single_topic', 'forumax_filter_is_single_topic' ); |
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|
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/** |
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* Fall back to the primed / queried topic when bbPress cannot resolve one. |
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* |
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* @param int $topic_id Resolved topic ID. |
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* @param int $requested ID passed into bbp_get_topic_id(). |
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* @return int |
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*/ |
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function forumax_filter_get_topic_id( $topic_id, $requested ) { |
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if ( ! empty( $requested ) && is_numeric( $requested ) ) { |
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return (int) $topic_id; |
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} |
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|
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if ( (int) $topic_id > 0 ) { |
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return (int) $topic_id; |
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} |
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|
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return forumax_resolve_current_topic_id(); |
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} |
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add_filter( 'bbp_get_topic_id', 'forumax_filter_get_topic_id', 10, 2 ); |
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|
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/** |
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* Never run an unscoped replies query while a topic is being rendered. |
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* |
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* User-profile and author queries keep post_parent=any. Hierarchical |
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* site-wide queries are also refused so posts_per_page cannot become -1. |
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* |
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* @param array $args Reply query args after parse. |
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* @return array |
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*/ |
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function forumax_scope_has_replies_query( $args ) { |
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if ( ! is_array( $args ) ) { |
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return $args; |
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} |
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|
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$explicit_parent = isset( $args['post_parent'] ) && is_numeric( $args['post_parent'] ) && (int) $args['post_parent'] > 0; |
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$is_author_query = ! empty( $args['author'] ) || ! empty( $args['author__in'] ); |
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$is_id_query = ! empty( $args['post__in'] ) || ! empty( $args['post__not_in'] ); |
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|
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if ( ! $explicit_parent && ! $is_author_query && ! $is_id_query ) { |
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$topic_id = forumax_resolve_current_topic_id(); |
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if ( $topic_id > 0 ) { |
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$args['post_parent'] = $topic_id; |
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} |
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} |
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|
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$parent = isset( $args['post_parent'] ) ? $args['post_parent'] : ''; |
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if ( ! empty( $args['hierarchical'] ) && ( ! is_numeric( $parent ) || (int) $parent < 1 ) ) { |
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$args['hierarchical'] = false; |
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if ( isset( $args['posts_per_page'] ) && (int) $args['posts_per_page'] < 1 ) { |
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$args['posts_per_page'] = function_exists( 'bbp_get_replies_per_page' ) ? (int) bbp_get_replies_per_page() : 20; |
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} |
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} |
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|
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return $args; |
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} |
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add_filter( 'bbp_has_replies_query', 'forumax_scope_has_replies_query', 1 ); |
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|
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/** |
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* Build a cache key fragment for a map_meta_cap argument. |
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* |
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* Gutenberg passes objects such as WP_Block_Editor_Context. Those cannot be |
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* cast with strval() and must not fatal the post editor. |
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* |
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* @param mixed $arg Raw map_meta_cap argument. |
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* @return string |
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*/ |
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function forumax_map_meta_cap_arg_fragment( $arg ) { |
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if ( is_null( $arg ) || is_bool( $arg ) || is_int( $arg ) || is_float( $arg ) || is_string( $arg ) ) { |
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return (string) $arg; |
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} |
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|
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if ( is_object( $arg ) ) { |
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return get_class( $arg ) . '#' . spl_object_id( $arg ); |
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} |
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|
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if ( is_array( $arg ) ) { |
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$parts = array(); |
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foreach ( $arg as $key => $value ) { |
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$parts[] = forumax_map_meta_cap_arg_fragment( $key ) . '=' . forumax_map_meta_cap_arg_fragment( $value ); |
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} |
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|
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return '[' . implode( ',', $parts ) . ']'; |
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} |
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|
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return gettype( $arg ); |
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} |
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|
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/** |
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* Cache bbPress meta-cap maps for the current request and break re-entry. |
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* |
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* The bundled mappers call user_can() from inside map_meta_cap. On a topic |
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* page that repeats the same checks per reply/admin link until memory dies. |
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* |
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* @param string[] $caps Primitive caps. |
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* @param string $cap Meta capability. |
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* @param int $user_id User ID. |
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* @param array $args Extra arguments (usually a post ID). |
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* @return string[] |
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*/ |
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function forumax_cache_bbp_map_meta_caps( $caps, $cap, $user_id, $args ) { |
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static $cache = array(); |
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static $stack = array(); |
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|
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$arg_key = ''; |
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if ( ! empty( $args ) && is_array( $args ) ) { |
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$arg_key = implode( ',', array_map( 'forumax_map_meta_cap_arg_fragment', $args ) ); |
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} |
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|
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$key = (int) $user_id . '|' . (string) $cap . '|' . $arg_key; |
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|
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if ( isset( $cache[ $key ] ) ) { |
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return $cache[ $key ]; |
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} |
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|
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// Same cap is already being mapped further up the stack. |
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if ( isset( $stack[ $key ] ) ) { |
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return $caps; |
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} |
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|
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$stack[ $key ] = true; |
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$mapped = bbp_map_meta_caps( $caps, $cap, $user_id, $args ); |
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unset( $stack[ $key ] ); |
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|
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$cache[ $key ] = $mapped; |
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|
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return $mapped; |
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} |
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|
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/** |
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* Replace the stock bbPress map_meta_cap aggregator with a cached wrapper. |
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* |
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* @return void |
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*/ |
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function forumax_install_map_meta_cap_cache() { |
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if ( ! function_exists( 'bbp_map_meta_caps' ) ) { |
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return; |
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} |
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|
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remove_filter( 'map_meta_cap', 'bbp_map_meta_caps', 10 ); |
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add_filter( 'map_meta_cap', 'forumax_cache_bbp_map_meta_caps', 10, 4 ); |
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} |
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forumax_install_map_meta_cap_cache(); |
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|
