EnerGenie-EG-PM2-LAN-V1/class.EnerGenieSwitcher.php

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<?php
/**
* Class EnerGenieSwitcher
* @author Florian Arndt <post@florianarndt.com>
* @author Ulf Haase <ulf.haase@uhsb.de>
* @package EnerGenie
* @subpackage
* @copyright https://github.com/flowli/EnerGenie-EG-PM2-LAN
* @version 1.00.00
*/
class EnerGenieSwitcher
{
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const ON = 1;
const OFF = 0;
const TIMEOUT = 1000;
private $debug = true;
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/**
* Check prerequisites and set-up
*/
public function __construct($ip, $password, $debug=false)
{
if(!extension_loaded('curl'))
{
die('Fatal error: CURL extension needed.');
}
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$this->ip = $ip;
$this->password = $password;
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$this->debug = $debug;
}
public function doLogout()
{
$html=$this->postRequest('http://'.$this->ip.'/login.html', array('pw' => ''));
if (strstr($html, "EnerGenie Web:"))
$result=TRUE;
else
$result=FALSE;
if ($this->debug)
{
if ($result)
echo "Logout ".$this->ip.": successful!!!<br>\n";
else
echo "Logout ".$this->ip."-->".$html."<--: failed!!!<br>\n";
}
return $result;
}
public function doLogin()
{
$html=$this->postRequest('http://'.$this->ip.'/login.html', array('pw' => $this->password));
if ($html=="" OR strstr($html, "EnerGenie Web:"))
$result=FALSE;
else
$result=TRUE;
if ($this->debug)
{
if ($result)
echo "Login ".$this->ip.": successful!!!<br>\n";
else
echo "Login ".$this->ip.": failed!!!<br>\n";
}
return $result;
}
/**
* Get status
*/
public function getStatus()
{
if ($this->doLogin())
{
$html = $this->getRequest('http://'.$this->ip.'/energenie.html', array());
//echo $this->ip.$html."<hr>";
preg_match_all('/var sockstates \= \[([0-1],[0,1],[0,1],[0,1])\]/', $html, $matches);
if(!isset($matches[1][0])) { return false; }
$states = explode(',', $matches[1][0]);
$this->doLogout();
return array(1=>$states[0], 2=>$states[1], 3=>$states[2], 4=>$states[3]);
}
else
return false;
}
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/**
* Do the switch
*/
public function doSwitch($switches)
{
if ($this->doLogin())
{
foreach($switches as $port => $state)
{
$ports = array(1 => '', 2 => '', 3 => '', 4 => '');
$ports[$port] = $state;
$params = array();
foreach($ports as $port => $state)
{
if(in_array($state, array(self::ON, self::OFF)))
{
$params['cte'.$port] = $state;
}
}
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$this->postRequest('http://'.$this->ip, $params);
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}
$this->doLogout();
}
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}
function postRequest($url, $fields)
{
$fields_string_array = array();
foreach($fields as $key=>$value)
{
$fields_string_array[] = $key.'='.$value;
}
$fields_string = join('&', $fields_string_array);
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//open connection
$ch = curl_init();
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// configure
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, self::TIMEOUT);
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//set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
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//execute post
$result = curl_exec($ch);
if($this->debug === true)
{
echo "Calling " . $url . '?' . $fields_string . "...<br>\n";
}
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//close connection
curl_close($ch);
// provide html
return $result;
}
function getRequest($url, $fields)
{
$fields_string_array = array();
foreach($fields as $key=>$value)
{
$fields_string_array[] = $key.'='.$value;
}
$fields_string = join('&', $fields_string_array);
//open connection
$ch = curl_init();
// configure
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT_MS, self::TIMEOUT);
//set the url, number of POST vars, POST data
curl_setopt($ch, CURLOPT_URL, $url . ($fields_string != '' ? '?' . $fields_string : ''));
//execute post
$result = curl_exec($ch);
if($this->debug === true)
{
echo "Calling " . $url . '?' . $fields_string . "...<br>\n";
}
//close connection
curl_close($ch);
// provide html
return $result;
}
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}