laysense/Webman-Dns
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update to 0.1.1

Browse Source
This commit is contained in:
Enoch 2024-02-06 19:04:14 +08:00
parent 8fc2a4df78
commit 185d101099
3 changed files with 74 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

80
src/resource/Dns.php
View File

@ -10,11 +10,27 @@
namespace Workerman\Protocols;
class Dns
{
public static function getDomain($data,$startbyte){
$dlen=substr($data,$startbyte,2);
$startbyte=$startbyte+2;
$domain[0]='';
$i=0;
while($dlen!='00'){
$domain[$i]=hex2bin(substr($data,$startbyte,hexdec($dlen)*2));
$startbyte=$startbyte+(hexdec($dlen)*2);
$dlen=substr($data,$startbyte,2);
$startbyte=$startbyte+2;
$i++;
}
$realname=join(".",$domain);
$return=['name'=>$realname,'startbyte'=>$startbyte];
return $return;
}
public static function send($response,$query,$info){
$response=hex2bin($response);
$traffic=strlen($response);
$info=json_decode($info);
#var_dump($info);
var_dump($info);
#出流量统计
#您也可以在此处保存$response,下一次通过raw类型实现快速缓存相应.
return $response;
@ -426,18 +442,9 @@ class Dns
$answerRRs=substr($data,12,4);
$authorityRRs=substr($data,16,4);
$additionalRRs=substr($data,20,4);
$startbyte=24;
$dlen=substr($data,$startbyte,2);
$startbyte=26;
$i=1;
while($dlen!='00'){
$domain[$i]=hex2bin(substr($data,$startbyte,hexdec($dlen)*2));
$startbyte=$startbyte+(hexdec($dlen)*2);
$dlen=substr($data,$startbyte,2);
$startbyte=$startbyte+2;
$i++;
}
$realname=join(".",$domain);
$gdomain=Dns::getDomain($data,24);
$realname=$gdomain['name'];
$startbyte=$gdomain['startbyte'];
$type=substr($data,$startbyte,4);
switch($type){
case '0001':
@ -466,9 +473,54 @@ class Dns
break;
}
$query=substr($data,24,$startbyte-16);
#additionalRRs
if($authorityRRs=='0000'&&$additionalRRs=='0001'){
$addR=new \StdClass();
$startbyte=$startbyte+8;
$addR_name=Dns::getDomain($data,$startbyte);
$addR_rname=$addR_name['name'];
$startbyte=$addR_name['startbyte'];
if($addR_rname==''){
$addR_rname=$realname;
}
$addR_type=substr($data,$startbyte,4);
$startbyte=$startbyte+4;
$addR->realname=$addR_rname;
$addR->type=$addR_type;
#OPT
if($addR_type=='0029'){
#dns.rr.udp_playload_size,请求定义该值后响应将可突破512byte默认限制
$addR->playloadSize=hexdec(substr($data,$startbyte,4));
$addR->rcode=substr($data,$startbyte+4,2);#dns.resp.ext_rcode
$addR->edns0v=substr($data,$startbyte+6,2);#Edns0 拓展协议版本
$addR->Z=substr($data,$startbyte+8,4);
$addR->optLen=hexdec(substr($data,$startbyte+12,4))*2;
if($addR->optLen!=0){
$startbyte=$startbyte+16;
$opt=substr($data,$startbyte,$addR->optLen);
$opt_type=substr($opt,0,4);
if($opt_type=='0008'){
$addR->opt_type='CSUBNET';
$csubnet_len=hexdec(substr($opt,4,4))*2;
$csubnet_data=substr($opt,8,$csubnet_len);
$csubnet_family=substr($csubnet_data,0,4);
#IPv4
if($csubnet_family=='0001'){
$csubnet_source=substr($csubnet_data,4,2);
$csubnet_scope=substr($csubnet_data,6,2);
$csubnet_ip=long2ip(hexdec(substr(substr($csubnet_data,8,$csubnet_len-8).'00000000',0,8)));
$addR->csubnet=['family'=>$csubnet_family,'source'=>$csubnet_source,'scope'=>$csubnet_scope,'ip'=>$csubnet_ip];
}
}
}
}
}else{
$addR=null;
}
$returndata= json_encode(array('type' => $type, 'name' => "$realname", 'id'=>"$id", 'query'=>"$query",'traffic'=>$traffic));
$returndata= json_encode(array('type' => $type, 'name' => "$realname", 'id'=>"$id", 'query'=>"$query",'traffic'=>$traffic,'addR'=>$addR));
return $returndata;
}

5
src/resource/DnsController.php
View File

@ -10,7 +10,7 @@ use dnstools\ipv6; #用于IPv6相关
class DnsController
{
public function DNS($type,$name,$rip,$id,$query,$traffic=0)
public function DNS($type,$name,$rip,$ip,$id,$query,$traffic=0)
{
#输出信息
#echo "\n Type:$type \n Domain: $name\n Client IP: $rip \n";
@ -44,8 +44,7 @@ class DnsController
if(!isset($send['ttl'])){
$send['ttl']=0;
}
$send['info']=json_encode(['domain'=>$name,'querytype'=>$type,'answertype'=>$send['type'],'ip'=>$rip,'ttl'=>$send['ttl'],'detail'=>$send['detail']]);
$return=json_encode($send);
$send['info']=json_encode(['domain'=>$data->name,'querytype'=>$data->type,'answertype'=>$send['type'],'ip'=>$ip,'rip'=>$rip,'ttl'=>$send['ttl'],'detail'=>$send['detail']]); $return=json_encode($send);
return $return;
}
}

8
src/resource/DnsProcess.php
View File

@ -12,12 +12,16 @@ class DnsProcess
$type=$data->type; #查询类型
$name=$data->name; #查询内容(一般是域名，PTR时为倒序IP)
$rip=$connection->getRemoteIp(); #客户端IP
if(isset($data->addR->csubnet->ip)){
$ip=$data->addR->csubnet->ip;
}else{
$ip=$rip;
}
#输出信息
#echo "\n Type:$type \n Domain: $name\n Client IP: $rip \n";
$dns=new DnsController;
$return=$dns->DNS($type,$name,$rip,$data->id,$data->query,$data->traffic);
$return=$dns->DNS($type,$name,$rip,$ip,$data->id,$data->query,$data->traffic);
$connection->send($return);
}