一、效果图
二、示例
require_once 'encipher.php';
$path = './source';
$target = './dst';
$encipher = new Encipher($path, $target);
$encipher->encode();三、encipher.php
<?php
/**
* Created by PhpStorm.
* User: Mr.Yang
* Date: 2022/5/4
* Time: 9:08
*
*/
class Encipher
{
private $c = '';
private $_sourceFile = '';
private $_sourceFileArray = array();
private $_targetFile = '';
private $_writeContent = '';
private $_comments = array(
'Author: Yang',
'Email: '
);
public function __construct($sourceFile, $targetFile, $comments = array())
{
!empty($sourceFile) && $this->_sourceFile = $sourceFile;
!empty($targetFile) && $this->_targetFile = $targetFile;
!empty($comments) && $this->comments = (array)$comments;
if (empty($this->_sourceFile) || !file_exists($this->_sourceFile)) {
exit("Source file does not exist.");
}
if (is_dir($this->_sourceFile)){
$this->_sourceFileArray = $this->getSourceFile($this->_sourceFile);
}
if (is_dir($this->_targetFile)){
$this->mkdirs($this->_targetFile);
}else{
if (empty($this->_targetFile) || !file_exists($this->_targetFile)) {
//如果源文件不存在，则创建
fopen($this->_targetFile, "a+");
}
}
$this->init();
}
private function init()
{
$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
$this->q6 = "O00OO0";//urldecode解析过的字符串（n1zb/ma5\vt0i28-pxuqy*6%6Crkdg9_ehcswo4+f37j）
}
private function getSourceFile($path)
{
static $arr = array();
if (is_dir($path)) {
$array = glob($path . '/*');
foreach ($array as $k => $v) {
if (is_dir($v)) {
$target = $this->_targetFile.str_replace($this->_sourceFile, '', $v);
$this->mkdirs($target);
$this->getSourceFile($v);
} else {
$arr[] = $v;
}
}
} else {
$arr = $path;
}
return $arr;
}
/**
* 递归创建目录
* @param $dir
* @return bool
*/
private function mkdirs($dir)
{
if(!is_dir($dir))
{
if(!$this->mkdirs(dirname($dir))){
return false;
}
if(!mkdir($dir,0777)){
return false;
}
}
return true;
}
/**
* 返回随机字符串
* @return string
*/
private function createRandKey()
{ // 返回随机字符串
$str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
return str_shuffle($str);
}
/**
* 写入文件
* @param $targetFile 写入文件的路径
* @return $this
*/
private function write($targetFile)
{
$file = fopen($targetFile, 'w');
fwrite($file, $this->_writeContent) or die('写文件错误');
fclose($file);
return $this;
}
/**
* 对明文内容进行加密处理
* @param $sourceFile 要加密的文件路径
* @return $this
*/
private function encodeText($sourceFile)
{
//随机密匙1
$k1 = $this->createRandKey();
//随机密匙2
$k2 = $this->createRandKey();
// 获取源文件内容
$sourceContent = file_get_contents($sourceFile);
//base64加密
$base64 = base64_encode($sourceContent);
//根据密匙替换对应字符。
$c = strtr($base64, $k1, $k2);
$this->c = $k1 . $k2 . $c;
return $this;
}
private function encodeTemplate()
{
$encodeContent = '$' . $this->q6 . '=urldecode("%6E1%7A%62%2F%6D%615%5C%76%740%6928%2D%70%78%75%71%79%2A6%6C%72%6B%64%679%5F%65%68%63%73%77%6F4%2B%6637%6A");$' . $this->q1 . '=$' . $this->q6 . '{3}.$' . $this->q6 . '{6}.$' . $this->q6 . '{33}.$' . $this->q6 . '{30};$' . $this->q3 . '=$' . $this->q6 . '{33}.$' . $this->q6 . '{10}.$' . $this->q6 . '{24}.$' . $this->q6 . '{10}.$' . $this->q6 . '{24};$' . $this->q4 . '=$' . $this->q3 . '{0}.$' . $this->q6 . '{18}.$' . $this->q6 . '{3}.$' . $this->q3 . '{0}.$' . $this->q3 . '{1}.$' . $this->q6 . '{24};$' . $this->q5 . '=$' . $this->q6 . '{7}.$' . $this->q6 . '{13};$' . $this->q1 . '.=$' . $this->q6 . '{22}.$' . $this->q6 . '{36}.$' . $this->q6 . '{29}.$' . $this->q6 . '{26}.$' . $this->q6 . '{30}.$' . $this->q6 . '{32}.$' . $this->q6 . '{35}.$' . $this->q6 . '{26}.$' . $this->q6 . '{30};eval($' . $this->q1 . '("' . base64_encode('$' . $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 . '))));') . '"));';
$headers = array_map('trim', array_merge(array('/*'), $this->_comments, array('*/')));
$this->_writeContent = "<?php" . "\r\n" . implode("\r\n", $headers) . "\r\n" . $encodeContent . "\r\n" . "?>";
return $this;
}
/**
* 获取解密后内容
* @param $sourceFileContent 解密前内容
* @return $this
*/
private function decodeTemplate($sourceFileContent)
{
//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
$m = explode('eval',$sourceFileContent);
//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);
$this->_writeContent = ${$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 $this;
}
/**
* 加密函数
*/
public function encode()
{
if (is_dir($this->_sourceFile)){
foreach ($this->_sourceFileArray as $k => $v){
$target = $this->_targetFile.str_replace($this->_sourceFile, '', $v);
$this->encodeText($v)->encodeTemplate()->write($target);
echo 'encode-----加密前文件：'.$v.'-----加密后文件：'.$target.'-----ok<br/>';
}
}else{
$this->encodeText($this->_sourceFile)->encodeTemplate()->write($this->_targetFile);
echo 'encode-----加密前文件：'.$this->_sourceFile.'-----加密后文件：'.$this->_targetFile.'-----ok<br/>';
}
}
/**
* 解密函数
*/
public function decode()
{
if (is_dir($this->_sourceFile)){
foreach ($this->_sourceFileArray as $k => $v){
$sourceFileContent = file_get_contents($v);
$target = $this->_targetFile.str_replace($this->_sourceFile, '', $v);
$this->decodeTemplate($sourceFileContent)->write($target);
echo 'decode-----解密前文件：'.$v.'-----解密后文件：'.$target.'-----ok<br/>';
}
}else{
$sourceFileContent = file_get_contents($this->_sourceFile);
$this->decodeTemplate($sourceFileContent)->write($this->_targetFile);
echo 'decode-----解密前文件：'.$this->_sourceFile.'-----解密后文件：'.$this->_targetFile.'-----ok<br/>';
}
}
}
