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File Name : class-minify-css-urirewriter.php

<?php
/**
 * Class Minify_CSS_UriRewriter
 *
 * @package Minify
 */

/**
 * Rewrite file-relative URIs as root-relative in CSS files
 *
 * @package Minify
 * @author Stephen Clay <steve@mrclay.org>
 */
class Minify_CSS_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, array(self::$className, '_processUriCB'), $css);

$pattern = '/url\$\\s*([\'"](.*?)[\'"]|[^\$\\s]+)\\s*\\)/';
		$css = preg_replace_callback($pattern, array(self::$className, '_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, array(self::$className, '_processUriCB'), $css);

$pattern = '/url\$\\s*([\'"](.*?)[\'"]|[^\$\\s]+)\\s*\\)/';
		$css = preg_replace_callback($pattern, array(self::$className, '_processUriCB'), $css);

$css = self::_unOwlify($css);

self::$_prependPath = null;

return $css;
	}

/**
	 * Get a root relative URI from a file relative URI
	 *
	 * <code>
	 * Minify_CSS_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
	 * Minify_CSS_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;
	}

/**
	 * Defines which class to call as part of callbacks, change this
	 * if you extend Minify_CSS_UriRewriter
	 *
	 * @var string
	 */
	protected static $className = 'Minify_CSS_UriRewriter';

/**
	 * 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 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);
	}
}

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	carpkozk/carpkozk	0755	2024-03-26 11:22:04
..	dir	-	carpkozk/carpkozk	0755	2024-03-26 11:22:04
class-imagify-partner.php	text/x-php	21.86 KB	carpkozk/carpkozk	0644	2024-03-26 11:22:04
class-minify-css-urirewriter.php	text/x-php	8.96 KB	carpkozk/carpkozk	0644	2024-03-26 11:22:04
class-rocket-mobile-detect.php	text/x-php	79.73 KB	carpkozk/carpkozk	0644	2024-03-26 11:22:04

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