laipower/wp-content/upgrade-temp-backup/plugins/w3-total-cache/Util_WpmuBlogmap.php
2023-10-22 22:21:48 +00:00

158 lines
4.0 KiB
PHP

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