<?php
class CMT5Request
{
private $m_curl=null;
private $m_server="";
public function Init($server)
{
$this->Shutdown();
if($server==null)
return(false);
$this->m_curl=curl_init();
if($this->m_curl==null)
return(false);
//---
curl_setopt($this->m_curl,CURLOPT_SSL_VERIFYPEER,0); // comment out this line if you use self-signed certificates
curl_setopt($this->m_curl,CURLOPT_MAXCONNECTS,1); // one connection is used
curl_setopt($this->m_curl, CURLOPT_HTTPHEADER,array('Connection: Keep-Alive'));
//---
$this->m_server=$server;
//---
return(true);
}
public function Shutdown()
{
if($this->m_curl!=null)
curl_close($this->m_curl);
$this->m_curl=null;
}
public function Get($path)
{
if($this->m_curl==null)
return(false);
curl_setopt($this->m_curl,CURLOPT_POST,false);
curl_setopt($this->m_curl,CURLOPT_URL,'https://'.$this->m_server.$path);
curl_setopt($this->m_curl,CURLOPT_RETURNTRANSFER,true);
$result=curl_exec($this->m_curl);
if($result==false)
{
echo 'Curl GET error: '.curl_error($this->m_curl);
return(false);
}
$code=curl_getinfo($this->m_curl,CURLINFO_HTTP_CODE);
if($code!=200)
{
echo 'Curl GET code: '.$code;
return(false);
}
return($result);
}
public function Post($path, $body)
{
if($this->m_curl==null)
return(false);
curl_setopt($this->m_curl,CURLOPT_POST,true);
curl_setopt($this->m_curl,CURLOPT_URL, 'https://'.$this->m_server.$path);
curl_setopt($this->m_curl,CURLOPT_POSTFIELDS,$body);
curl_setopt($this->m_curl,CURLOPT_RETURNTRANSFER,true);
$result=curl_exec($this->m_curl);
if($result==false)
{
echo 'Curl POST error: '.curl_error($this->m_curl);
return(false);
}
$code=curl_getinfo($this->m_curl,CURLINFO_HTTP_CODE);
if($code!=200)
{
echo 'Curl POST code: '.$code;
return(false);
}
return($result);
}
public function Auth($login, $password, $build, $agent)
{
if($this->m_curl==null)
return(false);
//--- send start
$path='/api/auth/start?version='.$build.'&agent='.$agent.'&login='.$login.'&type=manager';
$result=$this->Get($path);
if($result==false)
return(false);
$auth_start_answer=json_decode($result);
if((int)$auth_start_answer->retcode!=0)
{
echo 'Auth start error : '.$auth_start_answer.retcode;
return(false);
}
//--- Getting code from the hex string
$srv_rand=hex2bin($auth_start_answer->srv_rand);
//--- Hash for the response
$password_hash=md5(mb_convert_encoding($password,'utf-16le','utf-8'),true).'WebAPI';
$srv_rand_answer=md5(md5($password_hash,true).$srv_rand);
//--- Random string for the MetaTrader 5 server
$cli_rand_buf=random_bytes(16);
$cli_rand=bin2hex($cli_rand_buf);
//--- Sending the response
$path='/api/auth/answer?srv_rand_answer='.$srv_rand_answer.'&cli_rand='.$cli_rand;
$result=$this->Get($path);
if($result==false)
return(false);
$auth_answer_answer=json_decode($result);
if((int)$auth_answer_answer->retcode!=0)
{
echo 'Auth answer error : '.$auth_answer_answer.retcode;
return(false);
}
//--- Calculating a correct server response for the random client sequence
$cli_rand_answer=md5(md5($password_hash,true).$cli_rand_buf);
if($cli_rand_answer!=$auth_answer_answer->cli_rand_answer)
{
echo 'Auth answer error : invalid client answer';
return(false);
}
//--- Everything is done
return(true);
}
}
// Example of use
$request = new CMT5Request();
// Authenticate on the server using the Auth command
if($request->Init('my.broker.com:443') && $request->Auth(1000,"Password",1985,"WebManager"))
{
// Let us request the symbol named TEST using the symbol_get command
$result=$request->Get('/api/symbol/get?symbol=TEST');
if($result!=false)
{
echo $result;
$json=json_decode($result);
if((int)$json->retcode==0)
{
$symbol=$json->answer;
//--- Changing the description
$symbol->Description='My Description';
// Sending changes to the server using the symbol_add command
$result=$request->Post('/api/symbol/add',json_encode($symbol));
if($result!=false)
echo $result;
}
}
}
$request->Shutdown();
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