View.class.php | searchcode

/sop/2.0beta1/ThinkPHP/Lib/Think/Core/View.class.php

http://iiccms.googlecode.com/
PHP | 464 lines | 223 code | 17 blank | 224 comment | 38 complexity | 51f0caace11c614c7cc9b33254eafe78 MD5 | raw file
Possible License(s): Apache-2.0, BSD-3-Clause, LGPL-2.1

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id$

/**
 +------------------------------------------------------------------------------
 * ThinkPHP ????
 * ?????????
 +------------------------------------------------------------------------------
 * @category   Think
 * @package  Think
 * @subpackage  Core
 * @author liu21st <liu21st@gmail.com>
 * @version  $Id$
 +------------------------------------------------------------------------------
 */
class View extends Think
{
    protected $tVar        =  array(); // ??????
    protected $trace       = array();  // ??trace??
    protected $templateFile  = '';      // ?????

    /**
     +----------------------------------------------------------
     * ??????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param mixed $name
     * @param mixed $value
     +----------------------------------------------------------
     */
    public function assign($name,$value=''){
        if(is_array($name)) {
            $this->tVar   =  array_merge($this->tVar,$name);
        }elseif(is_object($name)){
            foreach($name as $key =>$val)
                $this->tVar[$key] = $val;
        }else {
            $this->tVar[$name] = $value;
        }
    }
    /**
     +----------------------------------------------------------
     * Trace????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param mixed $name
     * @param mixed $value
     +----------------------------------------------------------
     */
    public function trace($title,$value='') {
        if(is_array($title))
            $this->trace   =  array_merge($this->trace,$title);
        else
            $this->trace[$title] = $value;
    }

    /**
     +----------------------------------------------------------
     * ????????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param string $name
     +----------------------------------------------------------
     * @return mixed
     +----------------------------------------------------------
     */
    public function get($name){
        if(isset($this->tVar[$name]))
            return $this->tVar[$name];
        else
            return false;
    }

    /**
     +----------------------------------------------------------
     * ????????? ????????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param string $templateFile ????? ???????
     * @param string $charset ???????
     * @param string $contentType ????
     +----------------------------------------------------------
     * @return mixed
     +----------------------------------------------------------
     */
    public function display($templateFile='',$charset='',$contentType='text/html')
    {
        $this->fetch($templateFile,$charset,$contentType,true);
    }

    /**
     +----------------------------------------------------------
     * ??????
     +----------------------------------------------------------
     * @access protected
     +----------------------------------------------------------
     * @param string $charset ????
     * @param string $contentType ????
     * @param string $display ??????
     +----------------------------------------------------------
     * @return mixed
     +----------------------------------------------------------
     */
    protected function layout($content,$charset='',$contentType='text/html')
    {
        if(false !== strpos($content,'<!-- layout')) {
            // ?????????
            $find = preg_match_all('/<!-- layout::(.+?)::(.+?) -->/is',$content,$matches);
            if($find) {
                for ($i=0; $i< $find; $i++) {
                    // ???????????????
                    if(0===strpos($matches[1][$i],'$'))
                        // ????
                        $matches[1][$i]  =  $this->get(substr($matches[1][$i],1));
                    if(0 != $matches[2][$i] ) {
                        // ???????
                        // ??????????
                        $guid =  md5($matches[1][$i]);
                        $cache  =  S($guid);
                        if($cache) {
                            $layoutContent = $cache;
                        }else{
                            $layoutContent = $this->fetch($matches[1][$i],$charset,$contentType);
                            S($guid,$layoutContent,$matches[2][$i]);
                        }
                    }else{
                        $layoutContent = $this->fetch($matches[1][$i],$charset,$contentType);
                    }
                    $content    =   str_replace($matches[0][$i],$layoutContent,$content);
                }
            }
        }
        return $content;
    }

    /**
     +----------------------------------------------------------
     * ?????????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param string $templateFile ????? ???????
     * @param string $charset ???????
     * @param string $contentType ????
     * @param string $display ??????
     +----------------------------------------------------------
     * @return mixed
     +----------------------------------------------------------
     */
    public function fetch($templateFile='',$charset='',$contentType='text/html',$display=false)
    {
        $GLOBALS['_viewStartTime'] = microtime(TRUE);
        if(null===$templateFile)
            // ??null?????????????????
            return ;
        if(empty($charset))  $charset = C('DEFAULT_CHARSET');
        // ??????
        header("Content-Type:".$contentType."; charset=".$charset);
        header("Cache-control: private");  //??????
        //????
        ob_start();
        ob_implicit_flush(0);

        if(!file_exists_case($templateFile))
            // ????????
            $templateFile   = $this->parseTemplateFile($templateFile);

        $engine  = strtolower(C('TMPL_ENGINE_TYPE'));
        if('php'==$engine) {
            // ??????????????
            extract($this->tVar, EXTR_OVERWRITE);
            // ????PHP??
            include $templateFile;
        }elseif('think'==$engine && $this->checkCache($templateFile)) {
            // ???Think?????????? ???????????
            extract($this->tVar, EXTR_OVERWRITE);
            //????????
            include C('CACHE_PATH').md5($templateFile).C('TMPL_CACHFILE_SUFFIX');
        }else{
            // ?????????? ?????????
            // ???????????
            $className   = 'Template'.ucwords($engine);
            require_cache(THINK_PATH.'/Lib/Think/Util/Template/'.$className.'.class.php');
            $tpl   =  new $className;
            $tpl->fetch($templateFile,$this->tVar,$charset);
        }
        $this->templateFile   =  $templateFile;
        // ???????
        $content = ob_get_clean();
        // ??????
        $content = $this->templateContentReplace($content);
        // ??????
        $content = $this->layout($content,$charset,$contentType);
        // ??????
        return $this->output($content,$display);
    }

    /**
     +----------------------------------------------------------
     * ??????????
     * ???????????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param string $tmplTemplateFile  ?????
     +----------------------------------------------------------
     * @return boolen
     +----------------------------------------------------------
     */
    protected function checkCache($tmplTemplateFile)
    {
        if (!C('TMPL_CACHE_ON')) // ?????????
            return false;
        $tmplCacheFile = C('CACHE_PATH').md5($tmplTemplateFile).C('TMPL_CACHFILE_SUFFIX');
        if(!is_file($tmplCacheFile)){
            return false;
        }elseif (filemtime($tmplTemplateFile) > filemtime($tmplCacheFile)) {
            // ????????????????
            return false;
        }elseif (C('TMPL_CACHE_TIME') != -1 && time() > filemtime($tmplCacheFile)+C('TMPL_CACHE_TIME')) {
            // ????????
            return false;
        }
        //????
        return true;
    }

    /**
     +----------------------------------------------------------
     *  ??????
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @htmlfile ?????????
     * @htmlpath ?????????
     * @param string $templateFile ??????????
     * ???? ???????????
     * @param string $charset ????
     * @param string $contentType ????
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     */
    public function buildHtml($htmlfile,$htmlpath='',$templateFile='',$charset='',$contentType='text/html') {
        $content = $this->fetch($templateFile,$charset,$contentType);
        $htmlpath   = !empty($htmlpath)?$htmlpath:HTML_PATH;
        $htmlfile =  $htmlpath.$htmlfile.C('HTML_FILE_SUFFIX');
        if(!is_dir(dirname($htmlfile)))
            // ????????? ???
            mk_dir(dirname($htmlfile));
        if(false === file_put_contents($htmlfile,$content))
            throw_exception(L('_CACHE_WRITE_ERROR_'));
        return $content;
    }

    /**
     +----------------------------------------------------------
     * ????
     +----------------------------------------------------------
     * @access protected
     +----------------------------------------------------------
     * @param string $content ????
     * @param boolean $display ??????
     +----------------------------------------------------------
     * @return mixed
     +----------------------------------------------------------
     */
    protected function output($content,$display) {
        if(C('HTML_CACHE_ON'))  HtmlCache::writeHTMLCache($content);
        if($display) {
            if(C('SHOW_RUN_TIME')){
                $runtime = '<div  id="think_run_time" class="think_run_time">'.$this->showTime().'</div>';
                 if(strpos($content,'{__RUNTIME__}'))
                     $content   =  str_replace('{__RUNTIME__}',$runtime,$content);
                 else
                     $content   .=  $runtime;
            }
            echo $content;
            if(C('SHOW_PAGE_TRACE'))   $this->showTrace();
            return null;
        }else {
            return $content;
        }
    }

    /**
     +----------------------------------------------------------
     * ??????
     +----------------------------------------------------------
     * @access protected
     +----------------------------------------------------------
     * @param string $content ????
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     */
    protected function templateContentReplace($content) {
        // ???????????
        $replace =  array(
            '../Public'   => APP_PUBLIC_PATH,// ??????
            '__PUBLIC__'  => WEB_PUBLIC_PATH,// ??????
            '__TMPL__'    => APP_TMPL_PATH,  // ??????
            '__ROOT__'    => __ROOT__,       // ??????
            '__APP__'     => __APP__,        // ??????
            '__URL__'     => __URL__,        // ??????
            '__ACTION__'  => __ACTION__,     // ??????
            '__SELF__'    => __SELF__,       // ??????
        );
        if(C('TOKEN_ON')) {
            if(strpos($content,'{__TOKEN__}')) {
                // ???????????
                $replace['{__TOKEN__}'] =  $this->buildFormToken();
            }elseif(strpos($content,'{__NOTOKEN__}')){
                // ??????????
                $replace['{__NOTOKEN__}'] =  '';
            }elseif(preg_match('/<\/form(\s*)>/is',$content,$match)) {
                // ???????????
                $replace[$match[0]] = $this->buildFormToken().$match[0];
            }
        }
        // ???????????????
        if(is_array(C('TMPL_PARSE_STRING')) )
            $replace =  array_merge($replace,C('TMPL_PARSE_STRING'));
        $content = str_replace(array_keys($replace),array_values($replace),$content);
        return $content;
    }

    /**
     +----------------------------------------------------------
     * ?????????
     +----------------------------------------------------------
     * @access private
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     */
    private function buildFormToken() {
        // ??????????????
        $tokenName   = C('TOKEN_NAME');
        $tokenType = C('TOKEN_TYPE');
        $tokenValue = $tokenType(microtime(TRUE));
        $token   =  '<input type="hidden" name="'.$tokenName.'" value="'.$tokenValue.'" />';
        $_SESSION[$tokenName]  =  $tokenValue;
        return $token;
    }

    /**
     +----------------------------------------------------------
     * ????????
     +----------------------------------------------------------
     * @access private
     +----------------------------------------------------------
     * @param string $templateFile ???
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     * @throws ThinkExecption
     +----------------------------------------------------------
     */
    private function parseTemplateFile($templateFile) {
        if(''==$templateFile) {
            // ????????? ????????
            $templateFile = C('TMPL_FILE_NAME');
        }elseif(strpos($templateFile,'@')){
            // ??????????? ???????? ?? blue@User:add
            $templateFile   =   TMPL_PATH.str_replace(array('@',':'),'/',$templateFile).C('TMPL_TEMPLATE_SUFFIX');
        }elseif(strpos($templateFile,':')){
            // ???????????
            $templateFile   =   TEMPLATE_PATH.'/'.str_replace(':','/',$templateFile).C('TMPL_TEMPLATE_SUFFIX');
        }elseif(!is_file($templateFile))    {
            // ?????????????
            $templateFile =  dirname(C('TMPL_FILE_NAME')).'/'.$templateFile.C('TMPL_TEMPLATE_SUFFIX');
        }
        if(!file_exists_case($templateFile))
            throw_exception(L('_TEMPLATE_NOT_EXIST_').'['.$templateFile.']');
        return $templateFile;
    }

    /**
     +----------------------------------------------------------
     * ????????????????????????
     +----------------------------------------------------------
     * @access private
     +----------------------------------------------------------
     * @return string
     +----------------------------------------------------------
     */
    private function showTime() {
        // ??????
        $startTime =  $GLOBALS['_viewStartTime'];
        $endTime = microtime(TRUE);
        $total_run_time =   number_format(($endTime - $GLOBALS['_beginTime']), 3);
        $showTime   =   'Process: '.$total_run_time.'s ';
        if(C('SHOW_ADV_TIME')) {
            // ????????
            $_load_time =   number_format(($GLOBALS['_loadTime'] -$GLOBALS['_beginTime'] ), 3);
            $_init_time =   number_format(($GLOBALS['_initTime'] -$GLOBALS['_loadTime'] ), 3);
            $_exec_time =   number_format(($startTime  -$GLOBALS['_initTime'] ), 3);
            $_parse_time    =   number_format(($endTime - $startTime), 3);
            $showTime .= '( Load:'.$_load_time.'s Init:'.$_init_time.'s Exec:'.$_exec_time.'s Template:'.$_parse_time.'s )';
        }
        if(C('SHOW_DB_TIMES') && class_exists('Db',false) ) {
            // ?????????
            $db =   Db::getInstance();
            $showTime .= ' | DB :'.$db->Q().' queries '.$db->W().' writes ';
        }
        if(C('SHOW_CACHE_TIMES') && class_exists('Cache',false)) {
            // ????????
            $cache  =   Cache::getInstance();
            $showTime .= ' | Cache :'.$cache->Q().' gets '.$cache->W().' writes ';
        }
        if(MEMORY_LIMIT_ON && C('SHOW_USE_MEM')) {
            // ??????
            $startMem    =  array_sum(explode(' ', $GLOBALS['_startUseMems']));
            $endMem     =  array_sum(explode(' ', memory_get_usage()));
            $showTime .= ' | UseMem:'. number_format(($endMem - $startMem)/1024).' kb';
        }
        return $showTime;
    }

    /**
     +----------------------------------------------------------
     * ????Trace??
     +----------------------------------------------------------
     * @access private
     +----------------------------------------------------------
     */
    private function showTrace(){
        // ????Trace?? ??Trace????
        // ???? return array('????'=>$_SERVER['PHP_SELF'],'????'=>$_SERVER['SERVER_PROTOCOL'],...);
        $traceFile  =   CONFIG_PATH.'trace.php';
        $_trace =   is_file($traceFile)? include $traceFile : array();
         // ????????
        $this->trace('????',    $_SERVER['REQUEST_URI']);
        $this->trace('????',    C('CACHE_PATH').md5($this->templateFile).C('TMPL_CACHFILE_SUFFIX'));
        $this->trace('????',    $_SERVER['REQUEST_METHOD']);
        $this->trace('????',    $_SERVER['SERVER_PROTOCOL']);
        $this->trace('????',    date('Y-m-d H:i:s',$_SERVER['REQUEST_TIME']));
        $this->trace('????',    $_SERVER['HTTP_USER_AGENT']);
        $this->trace('??ID'   ,   session_id());
        $log    =   Log::$log;
        $this->trace('????',count($log)?count($log).'???<br/>'.implode('<br/>',$log):'?????');
        $files =  get_included_files();
        $this->trace('????',    count($files).str_replace("\n",'<br/>',substr(substr(print_r($files,true),7),0,-2)));
        $_trace =   array_merge($_trace,$this->trace);
        // ??Trace????
        include C('TMPL_TRACE_FILE');
    }

}//
?>