php之在线打包压缩源文件

「爱情、让人受尽委屈。」 2022-06-18 00:29 108阅读 0赞

<?php
    //验证密码
    $password = "123456";
    ?>
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>压缩文件</title>
    <style type="text/css">
    
    </style>
    </head>
    
    <body>
      <form name="myform" method="post" action="<?=$_SERVER[PHP_SELF];?>">
    
    <div style="color:#FF9900">
          <p>使用方法:选定要压缩的文件或目录（包含子目录），即可开始压缩。</p>
          <p>压缩的结果保留原来的目录结构。</p>
    </div>
    <?
    if(!$_REQUEST["myaction"]):
    ?>
    <table width="100%" border="0" cellspacing="0" cellpadding="0">
    	<tr>
          <td width="11%">验证密码: </td>
          <td width="89%"><input name="password" type="password" id="password" size="15"> 
          (源文件中设定的密码) </td>
        </tr>	
        <tr>
          <td><input name="myaction" type="hidden" id="myaction" value="dolist"></td>
          <td><input type="submit" name="Submit" value=" 进 入 "></td>
        </tr>
      </table>
    <?
    
    elseif($_REQUEST["myaction"]=="dolist"):
    	if($_REQUEST['password'] != $password) die("输入的密码不正确，请重新输入。");
    	echo "选择要压缩的文件或目录：<br>";
      	$fdir = opendir('./');
    	while($file=readdir($fdir)){
    		if($file=='.'|| $file=='..') continue;
    		echo "<input name='dfile[]' type='checkbox' value='$file' ".($file==basename(__FILE__)?"":"checked")."> ";
    		if(is_file($file)){
    			echo "文件: $file<br>";
    		}else{
    			echo "目录: $file<br>";
    		}
    	}
    ?>
    <br>
    压缩文件保存到目录: 
    <input name="todir" type="text" id="todir" value="__ninednszip__" size="15"> 
    (留空为本目录,必须有写入权限)<br>
    压缩文件名称:
    <input name="zipname" type="text" id="zipname" value="myweb.zip" size="15">
    (.zip)<br>
    <br> 
    <input name="password" type="hidden" id="password" value="<?=$_POST['password'];?>">
    <input name="myaction" type="hidden" id="myaction" value="dozip">
    <input type='button' value='反选' οnclick='selrev();'>
    <input type="submit" name="Submit" value=" 开始压缩 ">
    <script language='javascript'>
    function selrev() {
    	with(document.myform) {
    		for(i=0;i<elements.length;i++) {
    			thiselm = elements[i];
    			if(thiselm.name.match(/dfile\[]/))	thiselm.checked = !thiselm.checked;
    		}
    	}
    }
    </script>
    <?
    
    elseif($_REQUEST["myaction"]=="dozip"):
    
      set_time_limit(0);
    
      class PHPzip{
    
    	var $file_count = 0 ;
    	var $datastr_len   = 0;
    	var $dirstr_len = 0;
    	var $filedata = ''; //该变量只被类外部程序访问
    	var $gzfilename;
    	var $fp;
    	var $dirstr='';
    	/*
    	返回文件的修改时间格式.
    	只为本类内部函数调用.
    	*/
        function unix2DosTime($unixtime = 0) {
            $timearray = ($unixtime == 0) ? getdate() : getdate($unixtime);
    
            if ($timearray['year'] < 1980) {
            	$timearray['year']    = 1980;
            	$timearray['mon']     = 1;
            	$timearray['mday']    = 1;
            	$timearray['hours']   = 0;
            	$timearray['minutes'] = 0;
            	$timearray['seconds'] = 0;
            }
    
            return (($timearray['year'] - 1980) << 25) | ($timearray['mon'] << 21) | ($timearray['mday'] << 16) |
                   ($timearray['hours'] << 11) | ($timearray['minutes'] << 5) | ($timearray['seconds'] >> 1);
        }
    
    	/*
    	初始化文件,建立文件目录,
    	并返回文件的写入权限.
    	*/
    	function startfile($path = 'myweb.zip'){
    		$this->gzfilename=$path;
    		$mypathdir=array();
    		do{
    			$mypathdir[] = $path = dirname($path);
    		}while($path != '.');
    		@end($mypathdir);
    		do{
    			$path = @current($mypathdir);
    			@mkdir($path);
    		}while(@prev($mypathdir));
    
    		if($this->fp=@fopen($this->gzfilename,"w")){
    			return true;
    		}
    		return false;
    	}
    
    	/*
    	添加一个文件到 zip 压缩包中.
    	*/
        function addfile($data, $name){
            $name     = str_replace('\\', '/', $name);
    		
    		if(strrchr($name,'/')=='/') return $this->adddir($name);
    		
            $dtime    = dechex($this->unix2DosTime());
            $hexdtime = '\x' . $dtime[6] . $dtime[7]
                      . '\x' . $dtime[4] . $dtime[5]
                      . '\x' . $dtime[2] . $dtime[3]
                      . '\x' . $dtime[0] . $dtime[1];
            eval('$hexdtime = "' . $hexdtime . '";');
    
            $unc_len = strlen($data);
            $crc     = crc32($data);
            $zdata   = gzcompress($data);
            $c_len   = strlen($zdata);
            $zdata   = substr(substr($zdata, 0, strlen($zdata) - 4), 2);
    		
    		//新添文件内容格式化:
            $datastr  = "\x50\x4b\x03\x04";
            $datastr .= "\x14\x00";            // ver needed to extract
            $datastr .= "\x00\x00";            // gen purpose bit flag
            $datastr .= "\x08\x00";            // compression method
            $datastr .= $hexdtime;             // last mod time and date
            $datastr .= pack('V', $crc);             // crc32
            $datastr .= pack('V', $c_len);           // compressed filesize
            $datastr .= pack('V', $unc_len);         // uncompressed filesize
            $datastr .= pack('v', strlen($name));    // length of filename
            $datastr .= pack('v', 0);                // extra field length
            $datastr .= $name;
            $datastr .= $zdata;
            $datastr .= pack('V', $crc);                 // crc32
            $datastr .= pack('V', $c_len);               // compressed filesize
            $datastr .= pack('V', $unc_len);             // uncompressed filesize
    
    
    		fwrite($this->fp,$datastr);	//写入新的文件内容
    		$my_datastr_len = strlen($datastr);
    		unset($datastr);
    		
    		//新添文件目录信息
            $dirstr  = "\x50\x4b\x01\x02";
            $dirstr .= "\x00\x00";                	// version made by
            $dirstr .= "\x14\x00";                	// version needed to extract
            $dirstr .= "\x00\x00";                	// gen purpose bit flag
            $dirstr .= "\x08\x00";                	// compression method
            $dirstr .= $hexdtime;                 	// last mod time & date
            $dirstr .= pack('V', $crc);           	// crc32
            $dirstr .= pack('V', $c_len);         	// compressed filesize
            $dirstr .= pack('V', $unc_len);       	// uncompressed filesize
            $dirstr .= pack('v', strlen($name) ); 	// length of filename
            $dirstr .= pack('v', 0 );             	// extra field length
            $dirstr .= pack('v', 0 );             	// file comment length
            $dirstr .= pack('v', 0 );             	// disk number start
            $dirstr .= pack('v', 0 );             	// internal file attributes
            $dirstr .= pack('V', 32 );            	// external file attributes - 'archive' bit set
            $dirstr .= pack('V',$this->datastr_len ); // relative offset of local header
            $dirstr .= $name;
    		
    		$this->dirstr .= $dirstr;	//目录信息
    		
    		$this -> file_count ++;
    		$this -> dirstr_len += strlen($dirstr);
    		$this -> datastr_len += $my_datastr_len;	
        }
    
    	function adddir($name){ 
    		$name = str_replace("\\", "/", $name); 
    		$datastr = "\x50\x4b\x03\x04\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; 
    		
    		$datastr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); 
    		$datastr .= pack("v", 0 ).$name.pack("V", 0).pack("V", 0).pack("V", 0); 
    
    		fwrite($this->fp,$datastr);	//写入新的文件内容
    		$my_datastr_len = strlen($datastr);
    		unset($datastr);
    		
    		$dirstr = "\x50\x4b\x01\x02\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00"; 
    		$dirstr .= pack("V",0).pack("V",0).pack("V",0).pack("v", strlen($name) ); 
    		$dirstr .= pack("v", 0 ).pack("v", 0 ).pack("v", 0 ).pack("v", 0 ); 
    		$dirstr .= pack("V", 16 ).pack("V",$this->datastr_len).$name; 
    		
    		$this->dirstr .= $dirstr;	//目录信息
    
    		$this -> file_count ++;
    		$this -> dirstr_len += strlen($dirstr);
    		$this -> datastr_len += $my_datastr_len;	
    	}
    
    
    	function createfile(){
    		//压缩包结束信息,包括文件总数,目录信息读取指针位置等信息
    		$endstr = "\x50\x4b\x05\x06\x00\x00\x00\x00" .
    					pack('v', $this -> file_count) .
    					pack('v', $this -> file_count) .
    					pack('V', $this -> dirstr_len) .
    					pack('V', $this -> datastr_len) .
    					"\x00\x00";
    
    		fwrite($this->fp,$this->dirstr.$endstr);
    		fclose($this->fp);
    	}
      }
    
    	
    	if(!trim($_REQUEST[zipname])) $_REQUEST[zipname] = "myweb.zip"; else $_REQUEST[zipname] = trim($_REQUEST[zipname]);
    	if(!strrchr(strtolower($_REQUEST[zipname]),'.')=='.zip') $_REQUEST[zipname] .= ".zip";
    	$_REQUEST[todir] = str_replace('\\','/',trim($_REQUEST[todir]));
    	if(!strrchr(strtolower($_REQUEST[todir]),'/')=='/') $_REQUEST[todir] .= "/";	
    	if($_REQUEST[todir]=="/") $_REQUEST[todir] = "./";
    	
    	function listfiles($dir="."){
    		global $faisunZIP;
    		$sub_file_num = 0;
    
    		if(is_file("$dir")){
    		  if(realpath($faisunZIP ->gzfilename)!=realpath("$dir")){
    			$faisunZIP -> addfile(implode('',file("$dir")),"$dir");
    			return 1;
    		  }
    			return 0;
    		}
    		
    		$handle=opendir("$dir");
    		while ($file = readdir($handle)) {
    		   if($file=="."||$file=="..")continue;
    		   if(is_dir("$dir/$file")){
    			 $sub_file_num += listfiles("$dir/$file");
    		   }
    		   else {
    		   	   if(realpath($faisunZIP ->gzfilename)!=realpath("$dir/$file")){
    			     $faisunZIP -> addfile(implode('',file("$dir/$file")),"$dir/$file");
    				 $sub_file_num ++;
    				}
    		   }
    		}
    		closedir($handle);
    		if(!$sub_file_num) $faisunZIP -> addfile("","$dir/");
    		return $sub_file_num;
    	}
    
    	function num_bitunit($num){
    	  $bitunit=array(' B',' KB',' MB',' GB');
    	  for($key=0;$key<count($bitunit);$key++){
    		if($num>=pow(2,10*$key)-1){ //1023B 会显示为 1KB
    		  $num_bitunit_str=(ceil($num/pow(2,10*$key)*100)/100)." $bitunit[$key]";
    		}
    	  }
    	  return $num_bitunit_str;
    	}
    	
    	if(is_array($_REQUEST[dfile])){
    		$faisunZIP = new PHPzip;
    		if($faisunZIP -> startfile("$_REQUEST[todir]$_REQUEST[zipname]")){
    			echo "正在添加压缩文件...<br><br>";
    			$filenum = 0;
    			foreach($_REQUEST[dfile] as $file){
    				if(is_file($file)){
    					echo "文件: $file<br>";
    				}else{
    					echo "目录: $file<br>";
    				}
    				$filenum += listfiles($file);
    			}
    			$faisunZIP -> createfile();
    			echo "<br>压缩完成,共添加 $filenum 个文件.<br><a href='$_REQUEST[todir]$_REQUEST[zipname]'>$_REQUEST[todir]$_REQUEST[zipname] (".num_bitunit(filesize("$_REQUEST[todir]$_REQUEST[zipname]")).")</a>";
    		}else{
    			echo "$_REQUEST[todir]$_REQUEST[zipname] 不能写入,请检查路径或权限是否正确.<br>";
    		}
    	}else{
    		echo "没有选择的文件或目录.<br>";
    	}
    
    
    endif;
    
    ?>
      </form>
    </body>
    </html>