FrontEndFileHandler.class.php

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<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */

class FrontEndFileHandler extends Handler
{

    static $isSSL = null;

    var $cssMap = array();

    var $jsHeadMap = array();

    var $jsBodyMap = array();

    var $cssMapIndex = array();

    var $jsHeadMapIndex = array();

    var $jsBodyMapIndex = array();

    function isSsl()
    {
        if(!is_null(self::$isSSL))
        {
            return self::$isSSL;
        }

        $url_info = parse_url(Context::getRequestUrl());
        self::$isSSL = ($url_info['scheme'] == 'https');

        return self::$isSSL;
    }

    function loadFile($args)
    {
        if(!is_array($args))
        {
            $args = array($args);
        }
        $file = $this->getFileInfo($args[0], $args[2], $args[1]);

        $availableExtension = array('css' => 1, 'js' => 1);
        if(!isset($availableExtension[$file->fileExtension]))
        {
            return;
        }

        $file->index = (int) $args[3];

        if($file->fileExtension == 'css')
        {
            $map = &$this->cssMap;
            $mapIndex = &$this->cssMapIndex;

            $this->_arrangeCssIndex($pathInfo['dirname'], $file);
        }
        else if($file->fileExtension == 'js')
        {
            if($args[1] == 'body')
            {
                $map = &$this->jsBodyMap;
                $mapIndex = &$this->jsBodyMapIndex;
            }
            else
            {
                $map = &$this->jsHeadMap;
                $mapIndex = &$this->jsHeadMapIndex;
            }
        }

        (is_null($file->index)) ? $file->index = 0 : $file->index = $file->index;
        if(!isset($mapIndex[$file->key]) || $mapIndex[$file->key] > $file->index)
        {
            $this->unloadFile($args[0], $args[2], $args[1]);
            $map[$file->index][$file->key] = $file;
            $mapIndex[$file->key] = $file->index;
        }
    }

    private function getFileInfo($fileName, $targetIe = '', $media = 'all')
    {
        static $existsInfo = array();

        if(isset($existsInfo[$existsKey]))
        {
            return $existsInfo[$existsKey];
        }

        $fileName = preg_replace('/(?:[\/]{3,})(.*)/', '//$1', $fileName);
        $url_info = parse_url($fileName);
        $pathInfo = pathinfo(str_replace('?' . $url_info['query'], '', $fileName));

        $file = new stdClass();
        $file->fileName = basename($url_info['path']);
        $file->filePath = $this->_getAbsFileUrl($pathInfo['dirname']);
        $file->fileRealPath = FileHandler::getRealPath($pathInfo['dirname']);
        $file->fileExtension = strtolower($pathInfo['extension']);
        $file->fileNameNoExt = preg_replace('/\.min$/', '', $pathInfo['filename']);
        $file->query = $url_info['query'];
        $file->external = !!$url_info['host'];
        $file->keyName = implode('.', array($file->fileNameNoExt, $file->fileExtension));
        $file->cdnPath = $this->_normalizeFilePath($pathInfo['dirname']);

        if(!$file->external)
        {
            if(!__DEBUG__ && __XE_VERSION_STABLE__)
            {
                // if no debug mode, load minifed file
                $minifiedFileName = implode('.', array($file->fileNameNoExt, 'min', $file->fileExtension));
                $minifiedRealPath = implode('/', array($file->fileRealPath, $minifiedFileName));
                if(file_exists($minifiedRealPath))
                {
                    $file->fileName = $minifiedFileName;
                }
            }
            else
            {
                // Remove .min
                if(file_exists(implode('/', array($file->fileRealPath, $file->keyName))))
                {
                    $file->fileName = $file->keyName;
                }
            }
        }

        $file->targetIe = $targetIe;

        if($file->fileExtension == 'css')
        {
            $file->media = $media;
            if(!$file->media)
            {
                $file->media = 'all';
            }
            $file->key = $file->filePath . $file->keyName . "\t" . $file->targetIe . "\t" . $file->media;
        }
        else if($file->fileExtension == 'js')
        {
            $file->key = $file->filePath . $file->keyName . "\t" . $file->targetIe;
        }

        return $file;
    }

    function unloadFile($fileName, $targetIe = '', $media = 'all')
    {
        $file = $this->getFileInfo($fileName, $targetIe, $media);

        if($file->fileExtension == 'css')
        {
            if(isset($this->cssMapIndex[$file->key]))
            {
                $index = $this->cssMapIndex[$file->key];
                unset($this->cssMap[$index][$file->key], $this->cssMapIndex[$file->key]);
            }
        }
        else
        {
            if(isset($this->jsHeadMapIndex[$file->key]))
            {
                $index = $this->jsHeadMapIndex[$file->key];
                unset($this->jsHeadMap[$index][$file->key], $this->jsHeadMapIndex[$file->key]);
            }
            if(isset($this->jsBodyMapIndex[$file->key]))
            {
                $index = $this->jsBodyMapIndex[$file->key];
                unset($this->jsBodyMap[$index][$file->key], $this->jsBodyMapIndex[$file->key]);
            }
        }
    }

    function unloadAllFiles($type = 'all')
    {
        if($type == 'css' || $type == 'all')
        {
            $this->cssMap = array();
            $this->cssMapIndex = array();
        }

        if($type == 'js' || $type == 'all')
        {
            $this->jsHeadMap = array();
            $this->jsBodyMap = array();
            $this->jsHeadMapIndex = array();
            $this->jsBodyMapIndex = array();
        }
    }

    function getCssFileList()
    {
        $map = &$this->cssMap;
        $mapIndex = &$this->cssMapIndex;

        $this->_sortMap($map, $mapIndex);

        $result = array();
        foreach($map as $indexedMap)
        {
            foreach($indexedMap as $file)
            {
                $query = '';
                if(!$file->external && is_readable($file->cdnPath . '/' . $file->fileName))
                {
                    $query = date('YmdHis', filemtime($file->cdnPath . '/' . $file->fileName));
                }
                if($file->query)
                {
                    if($query) $query .= '&';
                    $query .= $file->query;
                }
                $query = ($query) ? '?' . $query : '';

                $fullFilePath = $file->filePath . '/' . $file->fileName . $query;
                $result[] = array(
                    'file' => $fullFilePath,
                    'media' => $file->media,
                    'targetie' => $file->targetIe
                );
            }
        }

        return $result;
    }

    function getJsFileList($type = 'head')
    {
        $ignore = array('modernizr.js', 'common.js', 'js_app.js', 'xml2json.js', 'xml_handler.js', 'xml_js_filter.js');
        $pathCommonJs = getScriptPath() . 'common/js';

        if($type == 'head')
        {
            $map = &$this->jsHeadMap;
            $mapIndex = &$this->jsHeadMapIndex;
        }
        else
        {
            $map = &$this->jsBodyMap;
            $mapIndex = &$this->jsBodyMapIndex;
        }

        $this->_sortMap($map, $mapIndex);

        $result = array();
        foreach($map as $indexedMap)
        {
            foreach($indexedMap as $file)
            {
                if((!__DEBUG__ && __XE_VERSION_STABLE__) && $file->filePath === $pathCommonJs)
                {
                    if(in_array($file->fileName, $ignore))
                    {
                        continue;
                    }
                }

                $query = '';
                if(!$file->external && is_readable($file->cdnPath . '/' . $file->fileName))
                {
                    $query = date('YmdHis', filemtime($file->cdnPath . '/' . $file->fileName));
                }
                if($file->query)
                {
                    if($query) $query .= '&';
                    $query .= $file->query;
                }
                $query = ($query) ? '?' . $query : '';

                $fullFilePath = $file->filePath . '/' . $file->fileName . $query;
                $result[] = array(
                    'file' => $fullFilePath,
                    'targetie' => $file->targetIe
                );
            }
        }

        return $result;
    }

    function _sortMap(&$map, &$index)
    {
        ksort($map);
    }

    function _normalizeFilePath($path)
    {
        if(strpos($path, '://') === FALSE && $path{0} != '/' && $path{0} != '.')
        {
            $path = './' . $path;
        }
        elseif(!strncmp($path, '//', 2))
        {
            return preg_replace('#^//+#', '//', $path);
        }

        $path = preg_replace('@/\./|(?<!:)\/\/@', '/', $path);

        while(strpos($path, '/../'))
        {
            $path = preg_replace('/\/([^\/]+)\/\.\.\//s', '/', $path, 1);
        }

        return $path;
    }

    function _getAbsFileUrl($path)
    {
        $path = $this->_normalizeFilePath($path);
        $script_path = getScriptPath();

        if(strpos($path, './') === 0)
        {
            if($script_path == '/' || $script_path == '\\')
            {
                $path = '/' . substr($path, 2);
            }
            else
            {
                $path = $script_path . substr($path, 2);
            }
        }
        else if(strpos($file, '../') === 0)
        {
            $path = $this->_normalizeFilePath($script_path . $path);
        }

        return $path;
    }

    function _arrangeCssIndex($dirName, &$file)
    {
        if($file->index !== 0)
        {
            return;
        }

        $dirName = str_replace('./', '', $dirName);
        $tmp = explode('/', $dirName);

        $cssSortList = array('common' => -100000, 'layouts' => -90000, 'modules' => -80000, 'widgets' => -70000, 'addons' => -60000);
        $file->index = $cssSortList[$tmp[0]];
    }

}
/* End of file FrontEndFileHandler.class.php */
/* Location: ./classes/frontendfile/FrontEndFileHandler.class.php */