真假rewrite

小清新,就是说的SegmentFault blog啊 首先感谢社区通过我的审核,给我一个平台。 风格很好,左右分工很好。 以后将会在这里开博客了。

最近接手一个项目里面也有伪静态来工作
分析其原理让我有点脑大,尤其是一开始上手的时候没有手册,没有

*关于wordpress大家都知道他的那个伪静态,这个程序的伪静态是用rewrite.php来中转的,但更明确的是,他把一个比较简单的处理弄得很复杂,而且犹豫这家伙并不擅长类处理方式,于是我在处理这个rewrite的时候很不方便,花了一天时间才将Apache php5.2.17下的路径重写搞定,中间还有很多路径规则,Apache不解析让我找不着北,但最终调好了。
他的可取之处有两点一个是使用了__rewrite方法对数据库中的路径规则进行解析,当然她在数据库中写的那个东西就不咋地了 本想截图,只能等会了,手机上不了那个网站 等有机会了吧这个截图在放上来吧 代码如下,核心就是在$_SEVER[' REQUEST_URI']上,匹配到后就用这个赋值让浏览器识别网址为伪静态 另一个他用的经典部分就是判断好了之后就用include方法把根目录下的index.php引用进来,然后在根目录下的index.php中将class下的index.php包含进来, 在class中的index.php中通过autoload loadlib 等方法加载相关类 可以说程序逻辑没有问题,但却很明显的不系统,不条理,读懂这个程序很难 相比ThinkPHP,这套程序真是不咋地*


//include(dirname(__FILE__))
function __download($file){
    set_time_limit(0);
    if(file_exists($file)){

        $info = pathinfo($file);
        $fsize = filesize($file);
        if (isset($_SERVER['HTTP_RANGE']) && ($_SERVER['HTTP_RANGE'] != "") && preg_match("/^bytes=([0-9]+)-$/i", $_SERVER['HTTP_RANGE'], $match) && ($match[1]  0) {
            header("HTTP/1.1 206 Partial Content");
            header("Accept-Ranges: bytes");
            header("Content-Ranges: bytes ".$start."-".($fsize - 1) . "/" . $fsize);
            header("Content-Length: ".($fsize - $start));
        } else {
            header("Accept-Ranges: bytes");
            header("Accept-Length: $fsize");
            header("Content-Length: $fsize");

        }
        header("Content-Type: application/octet-stream");
        header("Content-Disposition:attachment;filename=".$info['basename']);
        if($f=fopen($file,'rb')){fseek($f, $start);
            while($r = fread($f, 1024)){
                echo $r;
            }
            fclose($f);
        } else echo 'error';
        return true;
    } else return false;
}
function __outFile($file, $contentType){
    if ($contentType == 'application/octet-stream') {
        __download($file);
    } else {
        $gmt_mtime = gmdate('D, d M Y H:i:s', filemtime($file)).' GMT';
        if((isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && array_shift(explode(';', $_SERVER['HTTP_IF_MODIFIED_SINCE'])) ==  $gmt_mtime)){
            header("HTTP/1.1 304 Not Modified");
            header("Expires: ");
            header("Cache-Control: ");
            header("Pragma: ");
            header('Content-Type: '.$contentType);
            header("Tips: Cache Not Modified");
            header('Content-Length: 0');
            return true;
        }
        header("Last-Modified:" . $gmt_mtime);
        header("Expires: ");
        header("Cache-Control: ");
        header("Pragma: ");
        header('Content-Type: '.$contentType);
        header("Tips: Normal Respond");
        //header('Content-Type: '.$imgInfo['mime']);
        if ($f = fopen($file, 'rb')) {
            while ($r = fread($f, 1024)) {
                echo $r;
            }
            fclose($f);
        }
    }
    return true;
}
function __rewrite(){
    global $r_rewrite,$r_uri,$r_d,$r_dir,$r_content_type_list;
    $matching=false;
    foreach($r_rewrite as $v){
        if(preg_match($v[0],$r_uri,$matches)){
            $r_uri=$v[1];
            $r_uri=preg_replace('/\$(\d+)/e','$matches[$1]',$r_uri);
            $matching=true;
            break;
        }
    }
    if($matching){
        $url_info=parse_url($r_uri);
        $r_include=str_replace('/',$r_d,$r_dir.$url_info['path']);
        if(file_exists($r_include) && filetype($r_include)=='file'){
            if($query=$url_info['query']){
                $sp=explode('&',$query);
                foreach($sp as $v){
                    $sp2=explode('=',$v);
                    $_GET[$sp2[0]]=addslashes(urldecode($sp2[1]));//重要
                }
                $_SERVER['QUERY_STRING']=$query;
            }
            //if($url_info[''])
            return $r_include;
        } else return __rewrite();
    } else return false;
}
$r_marker='rewrite';
$r_marker_len=strlen($r_marker);
if($r_q=$_SERVER['QUERY_STRING']){
    if(substr($r_q,0,$r_marker_len)===$r_marker){
        if(($r_f1=strpos($r_q,'&'))!==false){
            $r_=substr($r_q,0,$r_f1);
            if(($r_f2=strpos($r_,'='))!==false){
                $r_=substr($r_,$r_f2+1);
                $_SERVER['QUERY_STRING']=substr($r_q,$r_f1+1);
                if(strpos($_SERVER['QUERY_STRING'],$r_marker.'=')===false)
                    unset($_GET[$r_marker]);
            } else header("HTTP/1.1 404 Not Found");
        } else {
            $r_=$_GET[$r_marker];
            $_SERVER['QUERY_STRING']='';
            $_GET=array();
        }
        /*rewrite start*/
        unset($r_marker,$r_marker_len,$r_f1,$r_f2,$r_q);//unset var
        $r_!='' && substr($r_,0,1)=='/' && $r_=substr($r_,1);
        if($r_){
            //if not null
            $r_='/'.$r_;
            $r_dir=dirname(__FILE__);
            $r_d=DIRECTORY_SEPARATOR;
            //if exists out
            $r_include=str_replace('/',$r_d,$r_dir.$r_);
            $r_content_type_list=array(
                '001'=>'application/x-001',
                '301'=>'application/x-301',
                '323'=>'text/h323',
                '906'=>'application/x-906',
                '907'=>'drawing/907',
                'a11'=>'application/x-a11',
                'acp'=>'audio/x-mei-aac',
                'ai'=>'application/postscript',
                'aif'=>'audio/aiff',
                'aifc'=>'audio/aiff',
                'aiff'=>'audio/aiff',
                'anv'=>'application/x-anv',
                'asa'=>'text/asa',
                'asf'=>'video/x-ms-asf',
                'asp'=>'text/asp',
                'asx'=>'video/x-ms-asf',
                'au'=>'audio/basic',
                'avi'=>'video/avi',
                'awf'=>'application/vnd.adobe.workflow',
                'biz'=>'text/xml',
                'bmp'=>'application/x-bmp',
                'bot'=>'application/x-bot',
                'c4t'=>'application/x-c4t',
                'c90'=>'application/x-c90',
                'cal'=>'application/x-cals',
                'cat'=>'application/vnd.ms-pki.seccat',
                'cdf'=>'application/x-netcdf',
                'cdr'=>'application/x-cdr',
                'cel'=>'application/x-cel',
                'cer'=>'application/x-x509-ca-cert',
                'cg4'=>'application/x-g4',
                'cgm'=>'application/x-cgm',
                'cit'=>'application/x-cit',
                'class'=>'java/*',
                'cml'=>'text/xml',
                'cmp'=>'application/x-cmp',
                'cmx'=>'application/x-cmx',
                'cot'=>'application/x-cot',
                'crl'=>'application/pkix-crl',
                'crt'=>'application/x-x509-ca-cert',
                'csi'=>'application/x-csi',
                'css'=>'text/css',
                'cut'=>'application/x-cut',
                'dbf'=>'application/x-dbf',
                'dbm'=>'application/x-dbm',
                'dbx'=>'application/x-dbx',
                'dcd'=>'text/xml',
                'dcx'=>'application/x-dcx',
                'der'=>'application/x-x509-ca-cert',
                'dgn'=>'application/x-dgn',
                'dib'=>'application/x-dib',
                'dll'=>'application/x-msdownload',
                'doc'=>'application/msword',
                'dot'=>'application/msword',
                'drw'=>'application/x-drw',
                'dtd'=>'text/xml',
                'dwf'=>'Model/vnd.dwf',
                'dwf'=>'application/x-dwf',
                'dwg'=>'application/x-dwg',
                'dxb'=>'application/x-dxb',
                'dxf'=>'application/x-dxf',
                'edn'=>'application/vnd.adobe.edn',
                'emf'=>'application/x-emf',
                'eml'=>'message/rfc822',
                'ent'=>'text/xml',
                'epi'=>'application/x-epi',
                'eps'=>'application/x-ps',
                'eps'=>'application/postscript',
                'etd'=>'application/x-ebx',
                'exe'=>'application/x-msdownload',
                'fax'=>'image/fax',
                'fdf'=>'application/vnd.fdf',
                'fif'=>'application/fractals',
                'fo'=>'text/xml',
                'frm'=>'application/x-frm',
                'g4'=>'application/x-g4',
                'gbr'=>'application/x-gbr',
                'gif'=>'image/gif',
                'gl2'=>'application/x-gl2',
                'gp4'=>'application/x-gp4',
                'hgl'=>'application/x-hgl',
                'hmr'=>'application/x-hmr',
                'hpg'=>'application/x-hpgl',
                'hpl'=>'application/x-hpl',
                'hqx'=>'application/mac-binhex40',
                'hrf'=>'application/x-hrf',
                'hta'=>'application/hta',
                'htc'=>'text/x-component',
                'htm'=>'text/html',
                'html'=>'text/html',
                'htt'=>'text/webviewhtml',
                'htx'=>'text/html',
                'icb'=>'application/x-icb',
                'ico'=>'image/x-icon',
                'ico'=>'application/x-ico',
                'iff'=>'application/x-iff',
                'ig4'=>'application/x-g4',
                'igs'=>'application/x-igs',
                'iii'=>'application/x-iphone',
                'img'=>'application/x-img',
                'ins'=>'application/x-internet-signup',
                'isp'=>'application/x-internet-signup',
                'IVF'=>'video/x-ivf',
                'java'=>'java/*',
                'jfif'=>'image/jpeg',
                'jpe'=>'image/jpeg',
                'jpe'=>'application/x-jpe',
                'jpeg'=>'image/jpeg',
                'jpg'=>'image/jpeg',
                'jpg'=>'application/x-jpg',
                'js'=>'application/x-javascript',
                'jsp'=>'text/html',
                'la1'=>'audio/x-liquid-file',
                'lar'=>'application/x-laplayer-reg',
                'latex'=>'application/x-latex',
                'lavs'=>'audio/x-liquid-secure',
                'lbm'=>'application/x-lbm',
                'lmsff'=>'audio/x-la-lms',
                'ls'=>'application/x-javascript',
                'ltr'=>'application/x-ltr',
                'm1v'=>'video/x-mpeg',
                'm2v'=>'video/x-mpeg',
                'm3u'=>'audio/mpegurl',
                'm4e'=>'video/mpeg4',
                'mac'=>'application/x-mac',
                'man'=>'application/x-troff-man',
                'math'=>'text/xml',
                'mdb'=>'application/msaccess',
                'mdb'=>'application/x-mdb',
                'mfp'=>'application/x-shockwave-flash',
                'mht'=>'message/rfc822',
                'mhtml'=>'message/rfc822',
                'mi'=>'application/x-mi',
                'mid'=>'audio/mid',
                'midi'=>'audio/mid',
                'mil'=>'application/x-mil',
                'mml'=>'text/xml',
                'mnd'=>'audio/x-musicnet-download',
                'mns'=>'audio/x-musicnet-stream',
                'mocha'=>'application/x-javascript',
                'movie'=>'video/x-sgi-movie',
                'mp1'=>'audio/mp1',
                'mp2'=>'audio/mp2',
                'mp2v'=>'video/mpeg',
                'mp3'=>'audio/mp3',
                'mp4'=>'video/mpeg4',
                'mpa'=>'video/x-mpg',
                'mpd'=>'application/vnd.ms-project',
                'mpe'=>'video/x-mpeg',
                'mpeg'=>'video/mpg',
                'mpg'=>'video/mpg',
                'mpga'=>'audio/rn-mpeg',
                'mpp'=>'application/vnd.ms-project',
                'mps'=>'video/x-mpeg',
                'mpt'=>'application/vnd.ms-project',
                'mpv'=>'video/mpg',
                'mpv2'=>'video/mpeg',
                'mpw'=>'application/vnd.ms-project',
                'mpx'=>'application/vnd.ms-project',
                'mtx'=>'text/xml',
                'mxp'=>'application/x-mmxp',
                'net'=>'image/pnetvue',
                'nrf'=>'application/x-nrf',
                'nws'=>'message/rfc822',
                'odc'=>'text/x-ms-odc',
                'out'=>'application/x-out',
                'p10'=>'application/pkcs10',
                'p12'=>'application/x-pkcs12',
                'p7b'=>'application/x-pkcs7-certificates',
                'p7c'=>'application/pkcs7-mime',
                'p7m'=>'application/pkcs7-mime',
                'p7r'=>'application/x-pkcs7-certreqresp',
                'p7s'=>'application/pkcs7-signature',
                'pc5'=>'application/x-pc5',
                'pci'=>'application/x-pci',
                'pcl'=>'application/x-pcl',
                'pcx'=>'application/x-pcx',
                'pdf'=>'application/pdf',
                'pdf'=>'application/pdf',
                'pdx'=>'application/vnd.adobe.pdx',
                'pfx'=>'application/x-pkcs12',
                'pgl'=>'application/x-pgl',
                'pic'=>'application/x-pic',
                'pko'=>'application/vnd.ms-pki.pko',
                'pl'=>'application/x-perl',
                'plg'=>'text/html',
                'pls'=>'audio/scpls',
                'plt'=>'application/x-plt',
                'png'=>'image/png',
                'pot'=>'application/vnd.ms-powerpoint',
                'ppa'=>'application/vnd.ms-powerpoint',
                'ppm'=>'application/x-ppm',
                'pps'=>'application/vnd.ms-powerpoint',
                'ppt'=>'application/vnd.ms-powerpoint',
                'ppt'=>'application/x-ppt',
                'pr'=>'application/x-pr',
                'prf'=>'application/pics-rules',
                'prn'=>'application/x-prn',
                'prt'=>'application/x-prt',
                'ps'=>'application/x-ps',
                'ps'=>'application/postscript',
                'ptn'=>'application/x-ptn',
                'pwz'=>'application/vnd.ms-powerpoint',
                'r3t'=>'text/vnd.rn-realtext3d',
                'ra'=>'audio/vnd.rn-realaudio',
                'ram'=>'audio/x-pn-realaudio',
                'ras'=>'application/x-ras',
                'rat'=>'application/rat-file',
                'rdf'=>'text/xml',
                'rec'=>'application/vnd.rn-recording',
                'red'=>'application/x-red',
                'rgb'=>'application/x-rgb',
                'rjs'=>'application/vnd.rn-realsystem-rjs',
                'rjt'=>'application/vnd.rn-realsystem-rjt',
                'rlc'=>'application/x-rlc',
                'rle'=>'application/x-rle',
                'rm'=>'application/vnd.rn-realmedia',
                'rmf'=>'application/vnd.adobe.rmf',
                'rmi'=>'audio/mid',
                'rmj'=>'application/vnd.rn-realsystem-rmj',
                'rmm'=>'audio/x-pn-realaudio',
                'rmp'=>'application/vnd.rn-rn_music_package',
                'rms'=>'application/vnd.rn-realmedia-secure',
                'rmvb'=>'application/vnd.rn-realmedia-vbr',
                'rmx'=>'application/vnd.rn-realsystem-rmx',
                'rnx'=>'application/vnd.rn-realplayer',
                'rp'=>'image/vnd.rn-realpix',
                'rpm'=>'audio/x-pn-realaudio-plugin',
                'rsml'=>'application/vnd.rn-rsml',
                'rt'=>'text/vnd.rn-realtext',
                'rtf'=>'application/msword',
                'rtf'=>'application/x-rtf',
                'rv'=>'video/vnd.rn-realvideo',
                'sam'=>'application/x-sam',
                'sat'=>'application/x-sat',
                'sdp'=>'application/sdp',
                'sdw'=>'application/x-sdw',
                'sit'=>'application/x-stuffit',
                'slb'=>'application/x-slb',
                'sld'=>'application/x-sld',
                'slk'=>'drawing/x-slk',
                'smi'=>'application/smil',
                'smil'=>'application/smil',
                'smk'=>'application/x-smk',
                'snd'=>'audio/basic',
                'sol'=>'text/plain',
                'sor'=>'text/plain',
                'spc'=>'application/x-pkcs7-certificates',
                'spl'=>'application/futuresplash',
                'spp'=>'text/xml',
                'ssm'=>'application/streamingmedia',
                'sst'=>'application/vnd.ms-pki.certstore',
                'stl'=>'application/vnd.ms-pki.stl',
                'stm'=>'text/html',
                'sty'=>'application/x-sty',
                'svg'=>'text/xml',
                'swf'=>'application/x-shockwave-flash',
                'tdf'=>'application/x-tdf',
                'tg4'=>'application/x-tg4',
                'tga'=>'application/x-tga',
                'tif'=>'image/tiff',
                'tif'=>'application/x-tif',
                'tiff'=>'image/tiff',
                'tld'=>'text/xml',
                'top'=>'drawing/x-top',
                'torrent'=>'application/x-bittorrent',
                'tsd'=>'text/xml',
                'txt'=>'text/plain',
                'uin'=>'application/x-icq',
                'uls'=>'text/iuls',
                'vcf'=>'text/x-vcard',
                'vda'=>'application/x-vda',
                'vdx'=>'application/vnd.visio',
                'vml'=>'text/xml',
                'vpg'=>'application/x-vpeg005',
                'vsd'=>'application/vnd.visio',
                'vsd'=>'application/x-vsd',
                'vss'=>'application/vnd.visio',
                'vst'=>'application/vnd.visio',
                'vst'=>'application/x-vst',
                'vsw'=>'application/vnd.visio',
                'vsx'=>'application/vnd.visio',
                'vtx'=>'application/vnd.visio',
                'vxml'=>'text/xml',
                'wav'=>'audio/wav',
                'wax'=>'audio/x-ms-wax',
                'wb1'=>'application/x-wb1',
                'wb2'=>'application/x-wb2',
                'wb3'=>'application/x-wb3',
                'wbmp'=>'image/vnd.wap.wbmp',
                'wiz'=>'application/msword',
                'wk3'=>'application/x-wk3',
                'wk4'=>'application/x-wk4',
                'wkq'=>'application/x-wkq',
                'wks'=>'application/x-wks',
                'wm'=>'video/x-ms-wm',
                'wma'=>'audio/x-ms-wma',
                'wmd'=>'application/x-ms-wmd',
                'wmf'=>'application/x-wmf',
                'wml'=>'text/vnd.wap.wml',
                'wmv'=>'video/x-ms-wmv',
                'wmx'=>'video/x-ms-wmx',
                'wmz'=>'application/x-ms-wmz',
                'wp6'=>'application/x-wp6',
                'wpd'=>'application/x-wpd',
                'wpg'=>'application/x-wpg',
                'wpl'=>'application/vnd.ms-wpl',
                'wq1'=>'application/x-wq1',
                'wr1'=>'application/x-wr1',
                'wri'=>'application/x-wri',
                'wrk'=>'application/x-wrk',
                'ws'=>'application/x-ws',
                'ws2'=>'application/x-ws',
                'wsc'=>'text/scriptlet',
                'wsdl'=>'text/xml',
                'wvx'=>'video/x-ms-wvx',
                'xdp'=>'application/vnd.adobe.xdp',
                'xdr'=>'text/xml',
                'xfd'=>'application/vnd.adobe.xfd',
                'xfdf'=>'application/vnd.adobe.xfdf',
                'xhtml'=>'text/html',
                'xls'=>'application/vnd.ms-excel',
                'xls'=>'application/x-xls',
                'xlw'=>'application/x-xlw',
                'xml'=>'text/xml',
                'xpl'=>'audio/scpls',
                'xq'=>'text/xml',
                'xql'=>'text/xml',
                'xquery'=>'text/xml',
                'xsd'=>'text/xml',
                'xsl'=>'text/xml',
                'xslt'=>'text/xml',
                'xwd'=>'application/x-xwd',
                'x_b'=>'application/x-x_b',
                'x_t'=>'application/x-x_t',
                '*'=>'application/octet-stream'
            );
            if(file_exists($r_include)){
                if(filetype($r_include)=='file'){
                    $r_pathinfo=pathinfo($r_include);
                    $r_extension=$r_pathinfo['extension'];
                    $r_content_type='';
                    if($r_extension){
                        $r_extension=strtolower($r_extension);
                        if($r_extension=='php'){
                            $_SERVER['SCRIPT_FILENAME']=$r_include;
                            $_SERVER['PHP_SELF']=$r_;
                            chdir($r_pathinfo['dirname']);
                            unset($r_,$r_dir,$r_d,$r_extension,$r_pathinfo,$r_content_type_list);
                            include($r_include);
                            exit;
                        }
                        if(!($r_content_type=$r_content_type_list[$r_extension]))$r_content_type=$r_content_type_list['*'];
                    } else $r_content_type=$r_content_type_list['*'];
                    __outFile($r_include, $r_content_type);
                    unset($r_,$r_dir,$r_d,$r_extension,$r_pathinfo,$r_content_type_list,$r_content_type,$r_include,$f,$r);
                } else {
                    //folder
                    substr($r_include,-1) != DIRECTORY_SEPARATOR && $r_include.= DIRECTORY_SEPARATOR;
                    $r_include.='index.php';
                    if(file_exists($r_include)){
                        $_SERVER['SCRIPT_FILENAME'] = $r_include;
                        unset($r_,$r_dir,$r_d,$r_content_type_list);
                        include($r_include);
                    } else header("HTTP/1.1 404 Not Found");
                }
            } else {
                //exe rewrite
                $r_rewrite_file='./cache/array/rewrite.php';
                if(file_exists($r_rewrite_file)){
                    $fp = fopen($r_rewrite_file,"rb");
                    flock($fp, LOCK_SH) ;
                    $r_rewrite=@fread($fp,filesize($r_rewrite_file));
                    flock($fp, LOCK_UN);
                    fclose($fp);
                    unset($fp);
                    $r_rewrite=unserialize(substr($r_rewrite,13));//rewrite_rule
                    //if($_SERVER['HTTP_X_REWRITE_URL'])$r_uri=$_SERVER['HTTP_X_REWRITE_URL'];
                    //else $r_uri=$r_uri.$_SERVER['REQUEST_URI'];
                    $_GET=array();
                    $r_uri=$r_.($_SERVER['QUERY_STRING']?'?'.$_SERVER['QUERY_STRING']:'');
                    if(($r_include=__rewrite())!==false){
                        $r_pathinfo=pathinfo($r_include);
                        $r_extension=$r_pathinfo['extension'];
                        $r_content_type='';
                        if($r_extension){
                            $r_extension=strtolower($r_extension);
                            if($r_extension=='php'){
                                $_SERVER['PHP_SELF']=$r_;
                                $_SERVER['SCRIPT_FILENAME']=$r_include;
                                chdir($r_pathinfo['dirname']);
                                unset($r_,$r_dir,$r_d,$r_extension,$r_pathinfo,$r_content_type_list);
                                include($r_include);
                                exit;
                            }
                            if(!($r_content_type=$r_content_type_list[$r_extension]))$r_content_type=$r_content_type_list['*'];
                        } else $r_content_type=$r_content_type_list['*'];
                        /*header('Content-Type:'.$r_content_type);
                        if($f=fopen($r_include,'rb')){
                            while($r=fread($f,1024))echo $r;
                            fclose($f);
                        }*/
                        __outFile($r_include, $r_content_type);
                    } else header("HTTP/1.1 404 Not Found");
                    unset($r_,$r_dir,$r_d,$r_content_type_list,$r_rewrite_file);
                } else header("HTTP/1.1 404 Not Found");
                //
            }
        } else {
            unset($r_);
            include('./index.php');//index
        }
        /*rewrite end*/
    } else header("HTTP/1.1 404 Not Found");
}
else
    include('./index.php');

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