installed plugin W3 Total Cache version 2.3.2

wp-content/plugins/w3-total-cache/BrowserCache_Core.php

@@ -0,0 +1,109 @@
+<?php
+namespace W3TC;
+
+/**
+ * Browsercache core
+ */
+class BrowserCache_Core {
+	/**
+	 * Returns replace extensions
+	 *
+	 * @return array
+	 */
+	public function get_replace_extensions( $config ) {
+		$types = array();
+		$extensions = array();
+
+		if ( $config->get_boolean( 'browsercache.cssjs.replace' ) ) {
+			$types = array_merge( $types, array_keys( $this->_get_cssjs_types() ) );
+		}
+
+		if ( $config->get_boolean( 'browsercache.html.replace' ) ) {
+			$types = array_merge( $types, array_keys( $this->_get_html_types() ) );
+		}
+
+		if ( $config->get_boolean( 'browsercache.other.replace' ) ) {
+			$types = array_merge( $types, array_keys( $this->_get_other_types() ) );
+		}
+
+		foreach ( $types as $type ) {
+			$extensions = array_merge( $extensions, explode( '|', $type ) );
+		}
+
+		return $extensions;
+	}
+
+
+
+	/**
+	 * Returns replace extensions
+	 *
+	 * @return array
+	 */
+	public function get_replace_querystring_extensions( $config ) {
+		$extensions = array();
+
+		if ( $config->get_boolean( 'browsercache.cssjs.replace' ) )
+			$this->_fill_extensions( $extensions, $this->_get_cssjs_types(), 'replace' );
+		if ( $config->get_boolean( 'browsercache.html.replace' ) )
+			$this->_fill_extensions( $extensions, $this->_get_html_types(), 'replace' );
+		if ( $config->get_boolean( 'browsercache.other.replace' ) )
+			$this->_fill_extensions( $extensions, $this->_get_other_types(), 'replace' );
+
+		if ( $config->get_boolean( 'browsercache.cssjs.querystring' ) )
+			$this->_fill_extensions( $extensions, $this->_get_cssjs_types(), 'querystring' );
+		if ( $config->get_boolean( 'browsercache.html.querystring' ) )
+			$this->_fill_extensions( $extensions, $this->_get_html_types(), 'querystring' );
+		if ( $config->get_boolean( 'browsercache.other.querystring' ) )
+			$this->_fill_extensions( $extensions, $this->_get_other_types(), 'querystring' );
+
+		return $extensions;
+	}
+
+
+
+	private function _fill_extensions( &$extensions, $types, $operation ) {
+		foreach ( array_keys( $types ) as $type ) {
+			$type_extensions = explode( '|', $type );
+			foreach ( $type_extensions as $ext ) {
+				if ( !isset( $extensions[$ext] ) )
+					$extensions[$ext] = array();
+				$extensions[$ext][$operation] = true;
+			}
+		}
+	}
+
+	/**
+	 * Returns CSS/JS mime types
+	 *
+	 * @return array
+	 */
+	private function _get_cssjs_types() {
+		$mime_types = include W3TC_INC_DIR . '/mime/cssjs.php';
+		return $mime_types;
+	}
+
+
+
+	/**
+	 * Returns HTML mime types
+	 *
+	 * @return array
+	 */
+	private function _get_html_types() {
+		$mime_types = include W3TC_INC_DIR . '/mime/html.php';
+		return $mime_types;
+	}
+
+
+
+	/**
+	 * Returns other mime types
+	 *
+	 * @return array
+	 */
+	private function _get_other_types() {
+		$mime_types = include W3TC_INC_DIR . '/mime/other.php';
+		return $mime_types;
+	}
+}