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phpgzdecode

 发布时间：2022-08-26 08:13:14

1. php的网站，怎么扫描出潜藏的一句话木马

查找那些高危函数就行了，比如eval

php后门木马常用的函数大致上可分为四种类型：

1. 执行系统命令: system, passthru, shell_exec, exec, popen,
proc_open
2. 代码执行与加密: eval, assert, call_user_func,base64_decode, gzinflate,
gzuncompress, gzdecode, str_rot13
3. 文件包含与生成: require, require_once, include, include_once,
file_get_contents, file_put_contents, fputs, fwrite
4. .htaccess: SetHandler, auto_prepend_file, auto_append_file

2. 以下哪些是常见的php 一句话木马

查找那些高危函数就行了，比如eval

php后门木马常用的函数大致上可分为四种类型：

1. 执行系统命令: system, passthru, shell_exec, exec, popen,
proc_open
2. 代码执行与加密: eval, assert, call_user_func,base64_decode, gzinflate,
gzuncompress, gzdecode, str_rot13
3. 文件包含与生成: require, require_once, include, include_once,
file_get_contents, file_put_contents, fputs, fwrite
4. .htaccess: SetHandler, auto_prepend_file, auto_append_file

3. php rpc好用吗,有什么优缺点php rpc框架哪个好

什么是RPC框架？ 如果用一句话概括RPC就是：远程调用框架（Remote Procere Call）那什么是远程调用？通常我们调用一个php中的方法，比如这样一个函数方法: localAdd(10, 20)，localAdd方法的具体实现要么是用户自己定义的，要么是php库函数中自带的，也就说在localAdd方法的代码实现在本地，它是一个本地调用！远程调用意思就是：被调用方法的具体实现不在程序运行本地，而是在别的某个远程地方。

远程调用原理

比如 A (client) 调用 B (server) 提供的remoteAdd方法：

4. jszip如何解压字符串

其实php对gzip解压很简单，用内置的gzdecode函数就可以了，不过很可惜我配置了半天也无法支持gzdecode函数，所以只好变通一下： 复制代码 代码如下: if (!function_exists('gzdecode')) { function gzdecode ($data) { $flags = ord(substr($data, 3, 1)); $headerlen = 10; $extralen = 0; $filenamelen = 0; if ($flags & 4) { $extralen = unpack('v' ,substr($data, 10, 2)); $extralen = $extralen[1]; $headerlen += 2 + $extralen; } if ($flags & 8) // Filename $headerlen = strpos($data, chr(0), $headerlen) + 1; if ($flags & 16) // Comment $headerlen = strpos($data, chr(0), $headerlen) + 1; if ($flags & 2) // CRC at end of file $headerlen += 2; $unpacked = @gzinflate(substr($data, $headerlen)); if ($unpacked === FALSE) $unpacked = $data; return $unpacked; } } 调用方法很简单： 复制代码 代码如下: $f=@file_get_contents(""); echo gzdecode($f);

5. 怎么php发送get请求给java，然后返回想要的具体参数

curl请求java接口，接口返回值后进行相关操作，给你贴一个curl的代码

functionihttp_request($url,$post='',$extra=array(),$timeout=60){
	$urlset=parse_url($url);
	if(empty($urlset['path'])){
		$urlset['path']='/';
	}
	if(!empty($urlset['query'])){
		$urlset['query']="?{$urlset['query']}";
	}
	if(empty($urlset['port'])){
		$urlset['port']=$urlset['scheme']=='https'?'443':'80';
	}
	if(strexists($url,'https://')&&!extension_loaded('openssl')){
		if(!extension_loaded("openssl")){
			message('请开启您PHP环境的openssl');
		}
	}
	if(function_exists('curl_init')&&function_exists('curl_exec')){
		$ch=curl_init();
				if(ver_compare(phpversion(),'5.6')>=0){
			curl_setopt($ch,CURLOPT_SAFE_UPLOAD,false);
		}
		if(!empty($extra['ip'])){
			$extra['Host']=$urlset['host'];
			$urlset['host']=$extra['ip'];
			unset($extra['ip']);
		}
		curl_setopt($ch,CURLOPT_URL,$urlset['scheme'].'://'.$urlset['host'].($urlset['port']=='80'?'':':'.$urlset['port']).$urlset['path'].$urlset['query']);
		curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
		@curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
		curl_setopt($ch,CURLOPT_HEADER,1);
		@curl_setopt($ch,CURLOPT_HTTP_VERSION,CURL_HTTP_VERSION_1_0);
		if($post){
			if(is_array($post)){
				$filepost=false;
				foreach($postas$name=>$value){
					if((is_string($value)&&substr($value,0,1)=='@')||(class_exists('CURLFile')&&$valueinstanceofCURLFile)){
						$filepost=true;
						break;
					}
				}
				if(!$filepost){
					$post=http_build_query($post);
				}
			}
			curl_setopt($ch,CURLOPT_POST,1);
			curl_setopt($ch,CURLOPT_POSTFIELDS,$post);
		}
		if(!empty($GLOBALS['_W']['config']['setting']['proxy'])){
			$urls=parse_url($GLOBALS['_W']['config']['setting']['proxy']['host']);
			if(!empty($urls['host'])){
				curl_setopt($ch,CURLOPT_PROXY,"{$urls['host']}:{$urls['port']}");
				$proxytype='CURLPROXY_'.strtoupper($urls['scheme']);
				if(!empty($urls['scheme'])&&defined($proxytype)){
					curl_setopt($ch,CURLOPT_PROXYTYPE,constant($proxytype));
				}else{
					curl_setopt($ch,CURLOPT_PROXYTYPE,CURLPROXY_HTTP);
					curl_setopt($ch,CURLOPT_HTTPPROXYTUNNEL,1);
				}
				if(!empty($GLOBALS['_W']['config']['setting']['proxy']['auth'])){
					curl_setopt($ch,CURLOPT_PROXYUSERPWD,$GLOBALS['_W']['config']['setting']['proxy']['auth']);
				}
			}
		}
		curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
		curl_setopt($ch,CURLOPT_TIMEOUT,$timeout);
		curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
		curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,0);
		curl_setopt($ch,CURLOPT_SSLVERSION,1);
		if(defined('CURL_SSLVERSION_TLSv1')){
			curl_setopt($ch,CURLOPT_SSLVERSION,CURL_SSLVERSION_TLSv1);
		}
		curl_setopt($ch,CURLOPT_USERAGENT,'Mozilla/5.0(WindowsNT6.1;WOW64;rv:9.0.1)Gecko/20100101Firefox/9.0.1');
		if(!empty($extra)&&is_array($extra)){
			$headers=array();
			foreach($extraas$opt=>$value){
				if(strexists($opt,'CURLOPT_')){
					curl_setopt($ch,constant($opt),$value);
				}elseif(is_numeric($opt)){
					curl_setopt($ch,$opt,$value);
				}else{
					$headers[]="{$opt}:{$value}";
				}
			}
			if(!empty($headers)){
				curl_setopt($ch,CURLOPT_HTTPHEADER,$headers);
			}
		}
		$data=curl_exec($ch);
		$status=curl_getinfo($ch);
		$errno=curl_errno($ch);
		$error=curl_error($ch);
		curl_close($ch);
		if($errno||empty($data)){
			returnerror(1,$error);
		}else{
			returnihttp_response_parse($data);
		}
	}
	$method=empty($post)?'GET':'POST';
	$fdata="{$method}{$urlset['path']}{$urlset['query']}HTTP/1.1
";
	$fdata.="Host:{$urlset['host']}
";
	if(function_exists('gzdecode')){
		$fdata.="Accept-Encoding:gzip,deflate
";
	}
	$fdata.="Connection:close
";
	if(!empty($extra)&&is_array($extra)){
		foreach($extraas$opt=>$value){
			if(!strexists($opt,'CURLOPT_')){
				$fdata.="{$opt}:{$value}
";
			}
		}
	}
	$body='';
	if($post){
		if(is_array($post)){
			$body=http_build_query($post);
		}else{
			$body=urlencode($post);
		}
		$fdata.='Content-Length:'.strlen($body)."

{$body}";
	}else{
		$fdata.="
";
	}
	if($urlset['scheme']=='https'){
		$fp=fsockopen('ssl://'.$urlset['host'],$urlset['port'],$errno,$error);
	}else{
		$fp=fsockopen($urlset['host'],$urlset['port'],$errno,$error);
	}
	stream_set_blocking($fp,true);
	stream_set_timeout($fp,$timeout);
	if(!$fp){
		returnerror(1,$error);
	}else{
		fwrite($fp,$fdata);
		$content='';
		while(!feof($fp))
			$content.=fgets($fp,512);
		fclose($fp);
		returnihttp_response_parse($content,true);
	}
}

6. PHP如何解码Chunked+gzip获得的源码

我粘贴一下我的HTTP下载函数代码，可以处理chunked编码，我的程序里面没有GZIP编码，如果你遇到GZIP，你在函数返回后再次进行解压缩即可。

//执行HTTP请求
function http_request($url,$method='GET',$data='',$cookie='',$refer=''){
$header='';
$body='';
$newcookie='';
if (preg_match('/^http:\/\/(.*?)(\/.*)$/',$url,$reg)){$host=$reg[1]; $path=$reg[2];}
else {outs(1,"URL($url)格式非法!"); return;}
$http_host=$host;
if (preg_match('/^(.*):(\d+)$/', $host, $reg)) {$host=$reg[1]; $port=$reg[2];}
else $port=80;
$fp = fsockopen($host, $port, $errno, $errstr, 30);
if (!$fp) {
outs(1,"$errstr ($errno)\n");
} else {
fputs($fp, "$method $path HTTP/1.1\r\n");
fputs($fp, "Host: $http_host\r\n");
if ($refer!='') fputs($fp, "Referer: $refer\r\n");
if ($cookie!='') fputs($fp, "Cookie: $cookie\r\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: ".strlen($data)."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $data . "\r\n\r\n");
$header_body=0;
$chunked_format=0;
$chunked_len=0;
while (!feof($fp)) {
$str=fgets($fp);
if ($header_body==1){
if ($chunked_format){
if ($chunked_len<=0){
$chunked_len=hexdec($str);
if ($chunked_len==0) break;
else continue;
} else {
$chunked_len-=strlen($str);
if ($chunked_len<=0) $str=trim($str);
}
}
$body.=$str;
}
else if ($str=="\r\n") $header_body=1;
else {
$header.=$str;
if ($str=="Transfer-Encoding: chunked\r\n") $chunked_format=1;
if (preg_match('|Set-Cookie: (\S+)=(\S+);|',$str,$reg)) $newcookie.=($newcookie==''?'':'; ').$reg[1].'='.$reg[2];
}
}
fclose($fp);
}
$GLOBALS['TRAFFIC']+=414+strlen($url)+strlen($data)+strlen($header)+strlen($body);
if (preg_match('/^Location: (\S+)\r\n/m',$header,$reg)) {
if (substr($reg[1],0,1)!='/'){
$path=substr($path,0,strrpos($path,'/')+1);
$path.=$reg[1];
} else $path=$reg[1];
if ($newcookie) $cookie=$newcookie;
return http_request('http://'.$http_host.$path,'GET','',$cookie,$url);
}
return array($body, $header, $newcookie);
}

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