/home/websdxuk/dannymattinezllc.com/wp-content/plugins/litespeed-cache/lib/urirewriter.cls.php
<?php
// phpcs:ignoreFile
/**
* Rewrite file-relative URIs as root-relative in CSS files
*
* @package Minify
* @author Stephen Clay <steve@mrclay.org>
*/
namespace LiteSpeed\Lib;
defined( 'WPINC' ) || exit;
class UriRewriter {
/**
* rewrite() and rewriteRelative() append debugging information here
*
* @var string
*/
public static $debugText = '';
/**
* In CSS content, rewrite file relative URIs as root relative
*
* @param string $css
*
* @param string $currentDir The directory of the current CSS file.
*
* @param string $docRoot The document root of the web site in which
* the CSS file resides (default = $_SERVER['DOCUMENT_ROOT']).
*
* @param array $symlinks (default = array()) If the CSS file is stored in
* a symlink-ed directory, provide an array of link paths to
* target paths, where the link paths are within the document root. Because
* paths need to be normalized for this to work, use "//" to substitute
* the doc root in the link paths (the array keys). E.g.:
* <code>
* array('//symlink' => '/real/target/path') // unix
* array('//static' => 'D:\\staticStorage') // Windows
* </code>
*
* @return string
*/
public static function rewrite( $css, $currentDir, $docRoot = null, $symlinks = array() ) {
self::$_docRoot = self::_realpath(
$docRoot ? $docRoot : $_SERVER['DOCUMENT_ROOT']
);
self::$_currentDir = self::_realpath( $currentDir );
self::$_symlinks = array();
// normalize symlinks in order to map to link
foreach ( $symlinks as $link => $target ) {
$link = ( $link === '//' ) ? self::$_docRoot : str_replace( '//', self::$_docRoot . '/', $link );
$link = strtr( $link, '/', DIRECTORY_SEPARATOR );
self::$_symlinks[ $link ] = self::_realpath( $target );
}
self::$debugText .= 'docRoot : ' . self::$_docRoot . "\n"
. 'currentDir : ' . self::$_currentDir . "\n";
if ( self::$_symlinks ) {
self::$debugText .= 'symlinks : ' . var_export( self::$_symlinks, 1 ) . "\n";
}
self::$debugText .= "\n";
$css = self::_trimUrls( $css );
$css = self::_owlifySvgPaths( $css );
// rewrite
$pattern = '/@import\\s+([\'"])(.*?)[\'"]/';
$css = preg_replace_callback( $pattern, __CLASS__ . '::_processUriCB', $css );
$pattern = '/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/';
$css = preg_replace_callback( $pattern, __CLASS__ . '::_processUriCB', $css );
$css = self::_unOwlify( $css );
return $css;
}
/**
* In CSS content, prepend a path to relative URIs
*
* @param string $css
*
* @param string $path The path to prepend.
*
* @return string
*/
public static function prepend( $css, $path ) {
self::$_prependPath = $path;
$css = self::_trimUrls( $css );
$css = self::_owlifySvgPaths( $css );
// append
$pattern = '/@import\\s+([\'"])(.*?)[\'"]/';
$css = preg_replace_callback( $pattern, __CLASS__ . '::_processUriCB', $css );
$pattern = '/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/';
$css = preg_replace_callback( $pattern, __CLASS__ . '::_processUriCB', $css );
$css = self::_unOwlify( $css );
self::$_prependPath = null;
return $css;
}
/**
* Get a root relative URI from a file relative URI
*
* <code>
* UriRewriter::rewriteRelative(
* '../img/hello.gif'
* , '/home/user/www/css' // path of CSS file
* , '/home/user/www' // doc root
* );
* // returns '/img/hello.gif'
*
* // example where static files are stored in a symlinked directory
* UriRewriter::rewriteRelative(
* 'hello.gif'
* , '/var/staticFiles/theme'
* , '/home/user/www'
* , array('/home/user/www/static' => '/var/staticFiles')
* );
* // returns '/static/theme/hello.gif'
* </code>
*
* @param string $uri file relative URI
*
* @param string $realCurrentDir realpath of the current file's directory.
*
* @param string $realDocRoot realpath of the site document root.
*
* @param array $symlinks (default = array()) If the file is stored in
* a symlink-ed directory, provide an array of link paths to
* real target paths, where the link paths "appear" to be within the document
* root. E.g.:
* <code>
* array('/home/foo/www/not/real/path' => '/real/target/path') // unix
* array('C:\\htdocs\\not\\real' => 'D:\\real\\target\\path') // Windows
* </code>
*
* @return string
*/
public static function rewriteRelative( $uri, $realCurrentDir, $realDocRoot, $symlinks = array() ) {
// prepend path with current dir separator (OS-independent)
$path = strtr( $realCurrentDir, '/', DIRECTORY_SEPARATOR );
$path .= DIRECTORY_SEPARATOR . strtr( $uri, '/', DIRECTORY_SEPARATOR );
self::$debugText .= "file-relative URI : {$uri}\n"
. "path prepended : {$path}\n";
// "unresolve" a symlink back to doc root
foreach ( $symlinks as $link => $target ) {
if ( 0 === strpos( $path, $target ) ) {
// replace $target with $link
$path = $link . substr( $path, strlen( $target ) );
self::$debugText .= "symlink unresolved : {$path}\n";
break;
}
}
// strip doc root
$path = substr( $path, strlen( $realDocRoot ) );
self::$debugText .= "docroot stripped : {$path}\n";
// fix to root-relative URI
$uri = strtr( $path, '/\\', '//' );
$uri = self::removeDots( $uri );
self::$debugText .= "traversals removed : {$uri}\n\n";
return $uri;
}
/**
* Remove instances of "./" and "../" where possible from a root-relative URI
*
* @param string $uri
*
* @return string
*/
public static function removeDots( $uri ) {
$uri = str_replace( '/./', '/', $uri );
// inspired by patch from Oleg Cherniy
do {
$uri = preg_replace( '@/[^/]+/\\.\\./@', '/', $uri, 1, $changed );
} while ( $changed );
return $uri;
}
/**
* Get realpath with any trailing slash removed. If realpath() fails,
* just remove the trailing slash.
*
* @param string $path
*
* @return mixed path with no trailing slash
*/
protected static function _realpath( $path ) {
$realPath = realpath( $path );
if ( $realPath !== false ) {
$path = $realPath;
}
return rtrim( $path, '/\\' );
}
/**
* Directory of this stylesheet
*
* @var string
*/
private static $_currentDir = '';
/**
* DOC_ROOT
*
* @var string
*/
private static $_docRoot = '';
/**
* directory replacements to map symlink targets back to their
* source (within the document root) E.g. '/var/www/symlink' => '/var/realpath'
*
* @var array
*/
private static $_symlinks = array();
/**
* Path to prepend
*
* @var string
*/
private static $_prependPath = null;
/**
* @param string $css
*
* @return string
*/
private static function _trimUrls( $css ) {
$pattern = '/
url\\( # url(
\\s*
([^\\)]+?) # 1 = URI (assuming does not contain ")")
\\s*
\\) # )
/x';
return preg_replace( $pattern, 'url($1)', $css );
}
/**
* @param array $m
*
* @return string
*/
private static function _processUriCB( $m ) {
// $m matched either '/@import\\s+([\'"])(.*?)[\'"]/' or '/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
$isImport = ( $m[0][0] === '@' );
// determine URI and the quote character (if any)
if ( $isImport ) {
$quoteChar = $m[1];
$uri = $m[2];
} else {
// $m[1] is either quoted or not
$quoteChar = ( $m[1][0] === "'" || $m[1][0] === '"' ) ? $m[1][0] : '';
$uri = ( $quoteChar === '' ) ? $m[1] : substr( $m[1], 1, strlen( $m[1] ) - 2 );
}
if ( $uri === '' ) {
return $m[0];
}
// if not anchor id, not root/scheme relative, and not starts with scheme
if ( ! preg_match( '~^(#|/|[a-z]+\:)~', $uri ) ) {
// URI is file-relative: rewrite depending on options
if ( self::$_prependPath === null ) {
$uri = self::rewriteRelative( $uri, self::$_currentDir, self::$_docRoot, self::$_symlinks );
} else {
$uri = self::$_prependPath . $uri;
if ( $uri[0] === '/' ) {
$root = '';
$rootRelative = $uri;
$uri = $root . self::removeDots( $rootRelative );
} elseif ( preg_match( '@^((https?\:)?//([^/]+))/@', $uri, $m ) && ( false !== strpos( $m[3], '.' ) ) ) {
$root = $m[1];
$rootRelative = substr( $uri, strlen( $root ) );
$uri = $root . self::removeDots( $rootRelative );
}
}
}
if ( $isImport ) {
return "@import {$quoteChar}{$uri}{$quoteChar}";
} else {
return "url({$quoteChar}{$uri}{$quoteChar})";
}
}
/**
* Mungs some inline SVG URL declarations so they won't be touched
*
* @link https://github.com/mrclay/minify/issues/517
* @see _unOwlify
*
* @param string $css
* @return string
*/
private static function _owlifySvgPaths( $css ) {
$pattern = '~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)url(\(\s*#\w+\s*\))~';
return preg_replace( $pattern, '$1owl$2', $css );
}
/**
* Undo work of _owlify
*
* @see _owlifySvgPaths
*
* @param string $css
* @return string
*/
private static function _unOwlify( $css ) {
$pattern = '~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)owl~';
return preg_replace( $pattern, '$1url', $css );
}
}
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