158 lines
4.0 KiB
PHP
158 lines
4.0 KiB
PHP
<?php
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namespace W3TC;
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class Util_WpmuBlogmap {
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static $content_by_filename = array();
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/**
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* Returns blogmap filename by home url
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*
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* @param string $blog_home_url
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* @return string
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*/
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static public function blogmap_filename_by_home_url( $blog_home_url ) {
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if ( !defined( 'W3TC_BLOG_LEVELS' ) )
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return W3TC_CACHE_BLOGMAP_FILENAME;
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else {
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$filename = dirname( W3TC_CACHE_BLOGMAP_FILENAME ) . '/' .
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basename( W3TC_CACHE_BLOGMAP_FILENAME, '.json' ) . '/';
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$s = md5( $blog_home_url );
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for ( $n = 0; $n < W3TC_BLOG_LEVELS; $n++ )
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$filename .= substr( $s, $n, 1 ) . '/';
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return $filename . basename( W3TC_CACHE_BLOGMAP_FILENAME );
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}
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}
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/**
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* Returns blog_id by home url
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* If database not initialized yet - returns 0
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*
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* @return integer
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*/
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static public function get_current_blog_data() {
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$host = Util_Environment::host();
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// subdomain
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if ( Util_Environment::is_wpmu_subdomain() ) {
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$blog_data = Util_WpmuBlogmap::try_get_current_blog_data( $host );
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if ( is_null( $blog_data ) )
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$GLOBALS['w3tc_blogmap_register_new_item'] = $host;
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return $blog_data;
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} else {
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// try subdir blog
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$url = $host . ( isset( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '' ); // phpcs:ignore
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$pos = strpos( $url, '?' );
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if ( $pos !== false )
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$url = substr( $url, 0, $pos );
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$url = rtrim( $url, '/' );
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$start_url = $url;
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for ( ;; ) {
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$blog_data = Util_WpmuBlogmap::try_get_current_blog_data( $url );
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if ( !is_null( $blog_data ) )
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return $blog_data;
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$pos = strrpos( $url, '/' );
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if ( $pos === false )
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break;
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$url = rtrim( substr( $url, 0, $pos ), '/' );
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}
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$GLOBALS['w3tc_blogmap_register_new_item'] = $start_url;
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return null;
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}
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}
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static public function try_get_current_blog_data( $url ) {
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$filename = Util_WpmuBlogmap::blogmap_filename_by_home_url( $url );
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if ( isset( self::$content_by_filename[$filename] ) ) {
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$blog_data = self::$content_by_filename[$filename];
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} else {
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$blog_data = null;
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if ( file_exists( $filename ) ) {
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$data = file_get_contents( $filename );
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$blog_data = @json_decode( $data, true );
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if ( is_array( $blog_data ) )
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self::$content_by_filename[$filename] = $blog_data;
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}
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}
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if ( isset( $blog_data[$url] ) )
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return $blog_data[$url];
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return null;
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}
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/**
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* Registers new blog url in url=>blog mapfile
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*/
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static public function register_new_item( $config ) {
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if ( !isset( $GLOBALS['current_blog'] ) ) {
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return false;
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}
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// find blog_home_url
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if ( Util_Environment::is_wpmu_subdomain() ) {
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$blog_home_url = $GLOBALS['w3tc_blogmap_register_new_item'];
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} else {
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$home_url = rtrim( get_home_url(), '/' );
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if ( substr( $home_url, 0, 7 ) == 'http://' ) {
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$home_url = substr( $home_url, 7 );
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} else if ( substr( $home_url, 0, 8 ) == 'https://' ) {
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$home_url = substr( $home_url, 8 );
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}
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if ( substr( $GLOBALS['w3tc_blogmap_register_new_item'], 0,
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strlen( $home_url ) ) == $home_url ) {
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$blog_home_url = $home_url;
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} else {
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$blog_home_url = $GLOBALS['w3tc_blogmap_register_new_item'];
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}
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}
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// write contents
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$filename = Util_WpmuBlogmap::blogmap_filename_by_home_url( $blog_home_url );
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if ( !@file_exists( $filename ) ) {
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$blog_ids = array();
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} else {
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$data = @file_get_contents( $filename );
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$blog_ids = @json_decode( $data, true );
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if ( !is_array( $blog_ids ) ) {
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$blog_ids = array();
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}
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}
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if ( isset( $blog_ids[$blog_home_url] ) ) {
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return false;
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}
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$data = $config->get_boolean( 'common.force_master' ) ? 'm' : 'c';
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$blog_home_url = preg_replace( '/[^a-zA-Z0-9\+\.%~!:()\/\-\_]/', '', $blog_home_url );
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$blog_ids[$blog_home_url] = $data . $GLOBALS['current_blog']->blog_id;
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$data = json_encode( $blog_ids );
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try {
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Util_File::file_put_contents_atomic( $filename, $data );
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} catch ( \Exception $ex ) {
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return false;
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}
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unset( self::$content_by_filename[$filename] );
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unset( $GLOBALS['w3tc_blogmap_register_new_item'] );
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return true;
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}
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}
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