first commit

wp-content/plugins/sitepress-multilingual-cms/inc/cache.php

@@ -0,0 +1,189 @@
+<?php
+
+if ( ! defined( 'ICL_DISABLE_CACHE' ) ) {
+	define( 'ICL_DISABLE_CACHE', false );
+}
+
+// phpcs:disable PEAR.NamingConventions.ValidClassName.Invalid
+// phpcs:disable PEAR.NamingConventions.ValidClassName.StartWithCapital
+
+/**
+ * Class icl_cache
+ */
+class icl_cache {
+
+	/** @var array */
+	protected $data;
+
+	/** @var string */
+	protected $name;
+
+	/** @var bool */
+	protected $cache_to_option;
+
+	/** @var bool */
+	protected $cache_needs_saving;
+
+	public function __construct( $name = '', $cache_to_option = false ) {
+		$this->data               = [];
+		$this->name               = $name;
+		$this->cache_to_option    = $cache_to_option;
+		$this->cache_needs_saving = false;
+
+		$this->init();
+	}
+
+	public function init() {
+		if ( $this->cache_to_option ) {
+			$this->data = icl_cache_get( $this->name . '_cache_class' );
+			if ( false === $this->data ) {
+				$this->data = [];
+			}
+
+			add_action( 'shutdown', [ $this, 'save_cache_if_required' ] );
+		}
+	}
+
+	public function save_cache_if_required() {
+		if ( $this->cache_needs_saving ) {
+			icl_cache_set( $this->name . '_cache_class', $this->data );
+			$this->cache_needs_saving = false;
+		}
+	}
+
+	public function get( $key ) {
+		if ( ICL_DISABLE_CACHE ) {
+			return null;
+		}
+		return isset( $this->data[ $key ] ) ? $this->data[ $key ] : false;
+	}
+
+	public function has_key( $key ) {
+		if ( ICL_DISABLE_CACHE ) {
+			return false;
+		}
+		return array_key_exists( $key, (array) $this->data );
+	}
+
+	public function set( $key, $value ) {
+		if ( ICL_DISABLE_CACHE ) {
+			return;
+		}
+		if ( $this->cache_to_option ) {
+			$old_value = null;
+			if ( isset( $this->data[ $key ] ) ) {
+				$old_value = $this->data[ $key ];
+			}
+			if ( $old_value !== $value ) {
+				$this->data[ $key ]       = $value;
+				$this->cache_needs_saving = true;
+			}
+		} else {
+			$this->data[ $key ] = $value;
+		}
+	}
+
+	public function clear() {
+		$this->data = array();
+		if ( $this->cache_to_option ) {
+			icl_cache_clear( $this->name . '_cache_class' );
+		}
+	}
+}
+
+if ( ! function_exists( 'icl_disable_cache' ) ) {
+	function icl_disable_cache() {
+		return defined( 'ICL_DISABLE_CACHE' ) && ICL_DISABLE_CACHE;
+	}
+}
+
+if ( ! function_exists( 'icl_cache_get' ) ) {
+	function icl_cache_get( $key ) {
+		$result = false;
+		if ( ! icl_disable_cache() ) {
+			$icl_cache = get_option( '_icl_cache' );
+
+			$result = isset( $icl_cache[ $key ] ) ? $icl_cache[ $key ] : false;
+		}
+
+		return $result;
+	}
+}
+
+if ( ! function_exists( 'icl_cache_set' ) ) {
+	function icl_cache_set( $key, $value = null ) {
+
+		global $switched;
+		if ( empty( $switched ) && ! icl_disable_cache() ) {
+			$icl_cache = get_option( '_icl_cache' );
+			if ( false === $icl_cache ) {
+				$icl_cache = [];
+				delete_option( '_icl_cache' );
+			}
+
+			if ( ! isset( $icl_cache[ $key ] ) || $icl_cache[ $key ] !== $value ) {
+				if ( ! is_null( $value ) ) {
+					$icl_cache[ $key ] = $value;
+				} elseif ( isset( $icl_cache[ $key ] ) ) {
+					unset( $icl_cache[ $key ] );
+				}
+
+				update_option( '_icl_cache', $icl_cache, 'no' );
+			}
+		}
+	}
+}
+
+if ( ! function_exists( 'icl_cache_clear' ) ) {
+	function icl_cache_clear( $key = false, $key_as_prefix = false ) {
+		if ( ! icl_disable_cache() ) {
+			/**
+			 * @var WPML_Term_Translation $wpml_term_translations
+			 * @var WPML_Post_Translation $wpml_post_translations
+			 */
+			global $wpml_term_translations, $wpml_post_translations;
+
+			$wpml_term_translations->reload();
+			$wpml_post_translations->reload();
+
+			if ( false === $key ) {
+				delete_option( '_icl_cache' );
+			} else {
+				/** @var array $icl_cache */
+				$icl_cache = get_option( '_icl_cache' );
+
+				if ( is_array( $icl_cache ) ) {
+					if ( isset( $icl_cache[ $key ] ) ) {
+						unset( $icl_cache[ $key ] );
+					}
+
+					if ( $key_as_prefix ) {
+						$cache_keys = array_keys( $icl_cache );
+						foreach ( $cache_keys as $cache_key ) {
+							if ( strpos( $cache_key, $key ) === 0 ) {
+								unset( $icl_cache[ $cache_key ] );
+							}
+						}
+					}
+
+					// Special cache of 'per language' - clear different statuses.
+					if ( false !== strpos( $key, '_per_language' ) ) {
+						foreach ( $icl_cache as $k => $v ) {
+							if ( false !== strpos( $k, $key . '#' ) ) {
+								unset( $icl_cache[ $k ] );
+							}
+						}
+					}
+					update_option( '_icl_cache', $icl_cache, 'no' );
+				}
+			}
+		}
+		do_action( 'wpml_cache_clear' );
+	}
+}
+
+function w3tc_translate_cache_key_filter( $key ) {
+	global $sitepress;
+
+	return $sitepress->get_current_language() . $key;
+}