


Example of php code encryption and decryption class (complete code)
本篇文章给大家带来的内容是关于php代码加密解密类的示例(完整代码) ,有一定的参考价值,有需要的朋友可以参考一下,希望对你有所帮助。
php 代码加密类,大家可以根据自己的需求进行修改,原类如下,该实例在ubuntu下测试没有问题。
<?php class Encryption{ private $c='';//存储密文 private $s='',$q1,$q2,$q3,$q4,$q5,$q6;//存储生成的加密后的文件内容 //如果不设置一个值,isset会表示不存在; private $file='';//读取文件的路径 private $source='',$target=''; //构造函数,实例化时调用初始化全局变量; public function __construct(){ //初始化全局变量 $this->initialVar(); //echo "hello \n"; } /* *@input $property_name,$value *@output * 魔法方法,对变量进行设置值;可根据需求进行处理。若直接去除if判断表示可用设置任何属性的值,包括不存在的属性; */ public function __set($property_name,$value){ //定义过的变量; if(isset($this->$property_name)){ $this->$property_name = $value; }else{ //异常处理,处理未声明的变量赋值;可根据需求进行处理。 throw new Exception("property does not exist"); } } //魔法方法 取出变量的值; public function __get($property_name){ if(isset($this->$property_name)){ return $this->$property_name; }else{ //throw new Exception("property does not exist"); return NULL; } } //取随机排序 private function RandAbc($length=""){//随机排序取回 $str="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; return str_shuffle($str); } //对明文内容进行加密处理 private function ciphertext($filename){ //$filename='index.php'; $T_k1=$this->RandAbc(); $T_k2=$this->RandAbc(); $vstr=file_get_contents($filename); $v1=base64_encode($vstr); $c=strtr($v1,$T_k1,$T_k2); $this->c=$T_k1.$T_k2.$c; return $this; } //初始化变量 private function initialVar(){ $this->q1="O00O0O";//base64_decode $this->q2="O0O000";//$c(原文经过strtr置换后的密文,由 目标字符+替换字符+base64_encode(‘原文内容')构成) $this->q3="O0OO00";//strtr $this->q4="OO0O00";//substr $this->q5="OO0000";//52 $this->q6="O00OO0";//urldecode解析过的字符串(n1zb/ma5\vt0i28-pxuqy*6%6Crkdg9_ehcswo4+f37j) } //生成加密后的模板(复杂版本); private function model(){ //$c = $this->c; //$this->initialVar(); $this->s='<?php $'.$this->q6.'=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$'. $this->q1.'=$'.$this->q6.'{3}.$'.$this->q6.'{6}.$'.$this->q6.'{33}.$'.$this->q6.'{30};$'.$this->q3.'=$'.$this->q6.'{33}.$'.$this->q6.'{10}.$' .$this->q6.'{24}.$'.$this->q6.'{10}.$'.$this->q6.'{24};$'.$this->q4.'=$'.$this->q3.'{0}.$'.$this->q6.'{18}.$'.$this->q6.'{3}.$'.$this->q3.'{0} .$'.$this->q3.'{1}.$'.$this->q6.'{24};$'.$this->q5.'=$'.$this->q6.'{7}.$'.$this->q6.'{13};$'.$this->q1.'.=$'.$this->q6.'{22}.$'.$this->q6.'{36} .$'.$this->q6.'{29}.$'.$this->q6.'{26}.$'.$this->q6.'{30}.$'.$this->q6.'{32}.$'.$this->q6.'{35}.$'.$this->q6.'{26}.$'.$this->q6.'{30}; eval($'.$this->q1.'("'.base64_encode('$'.$this->q2.'="'.$this->c.'"; eval(\'?>\'.$'.$this->q1.'($'.$this->q3.'($'.$this->q4.'($'.$this->q2.',$'.$this->q5.'*2),$'.$this->q4.'($'.$this->q2.',$'.$this->q5.',$'.$this->q5.'), $'.$this->q4.'($'.$this->q2.',0,$'.$this->q5.'))));').'"));?>'; return $this; } //创建加密文件 private function build($target){ //$this->encodes("./index.php"); //$this->model(); $fpp1 = fopen($target,'w'); fwrite($fpp1,$this->s) or die('写入是失败!'); fclose($fpp1); return $this; } //加密处理 连贯操作 public function encode($file,$target){ //$file = "index.php"; //连贯操作其实就是利用函数处理完后返回自身 $this->ciphertext($file)->model()->build($target); echo 'encode------'.$target.'-----ok<br/>'; } //解密 public function decode($file,$target=''){ //读取要解密的文件 $fpp1 = file_get_contents($file); $this->decodeMode($fpp1)->build($target); echo 'decode------'.$target.'-----ok<br/>'; } //解密模板,得到解密后的文本 private function decodeMode($fpp1){ //以eval为标志 截取为数组,前半部分为密文中的替换掉的函数名,后半部分为密文 $m = explode('eval',$fpp1); //对系统函数的替换部分进行执行,得到系统变量 $varStr = substr($m[0],strpos($m[0],'$')); //执行后,后续就可以使用替换后的系统函数名 eval($varStr); //判断是否有密文 if(!isset($m[1])){ return $this; } //对密文进行截取 {$this->q4} substr $star = strripos($m[1],'('); $end = strpos($m[1],')'); $str = ${$this->q4}($m[1],$star,$end); //对密文解密 {$this->q1} base64_decode $str = ${$this->q1}($str); //截取出解密后的 核心密文 $evallen = strpos($str,'eval'); $str = substr($str,0,$evallen); //执行核心密文 使系统变量被赋予值 $O0O000 eval($str); //并不能将如下段封装,因为 ${$this->qn} 并不能在全文中起作用 $this->s = ${$this->q1}( ${$this->q3}( ${$this->q4}( ${$this->q2},${$this->q5}*2 ), ${$this->q4}( ${$this->q2},${$this->q5},${$this->q5} ), ${$this->q4}( ${$this->q2},0,${$this->q5} ) ) ); return $this; } //递归读取并创建目标目录结构 private function targetDir($target){ if(!empty($target) ) { if(!file_exists($target)){ mkdir($target,0777,true); }else{ chmod($target,0777); } } } //递归解密 对指定文件夹下的php文件解密 public function decodeDir($source,$target=""){ if(is_dir($source)){ $this->targetDir($target); $dir = opendir($source); while(false!=$file=readdir($dir)) { //列出所有文件并去掉'.'和'..' 此处用的实例为thinkphp框架,所以默认排除里Thinkphp目录,用户可以按照自己的需求设置 if($file!='.' && $file!='..' && $file !='ThinkPHP') { $path = $target.DIRECTORY_SEPARATOR.$file; $sourcePath = $source.DIRECTORY_SEPARATOR.$file; $this->decodeDir($sourcePath,$path); } } }else if(is_file($source)){ $extension=substr($source,strrpos($source,'.')+1); if(strtolower($extension)=='php'){ $this->decode($source,$target); }else{ //不是php的文件不处理 copy($source, $target); } //return; } } //递归加密 对指定文件夹下的php文件加密 public function encodeDir($source,$target){ if(is_dir($source)){ $this->targetDir($target); $dir = opendir($source); while(false!=$file=readdir($dir)) { //列出所有文件并去掉'.'和'..' if($file!='.' && $file!='..' && $file !='ThinkPHP') { $path = $target.DIRECTORY_SEPARATOR.$file; $sourcePath = $source.DIRECTORY_SEPARATOR.$file; $this->encodeDir($sourcePath,$path); } } }else if(is_file($source)){ $extension=substr($source,strrpos($source,'.')+1); if(strtolower($extension)=='php'){ $this->encode($source,$target); }else{ copy($source, $target); } } } } $ob = new Encryption(); $ob->source = "/var/www/bookReservation"; $ob->target = "/var/www/jiami/bookReservation"; //解密指定文件 //$ob->decode('D:\\php\\WWW\\workspace\\weixin2\\Application\\Home\\Controller\\IndexController.class.php'); //$ob->decode('jiami.php'); //$ob->decode('dam6.php'); //对一个指定的文件目录进行加密 $ob->encodeDir($ob->source,$ob->target); //对一个指定的文件目录进行解密 $ob->decodeDir($ob->target,"/var/www/jiami/bookReservationD");
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