forked from hydna/hydna-php
/
hydna-push.php
157 lines (107 loc) · 3.4 KB
/
hydna-push.php
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<?php
class HydnaUtil{
const MAX_PAYLOAD_SIZE = 0xFFFA;
const DEFAULT_PORT = 80;
public static function clean_payload($data){
if(empty($data)){
throw new Exception("Payload expected");
}
if(mb_strlen($data, "UTF-8") > self::MAX_PAYLOAD_SIZE){
throw new Exception("Payload exceeds maximum length allowed");
}
return $data;
}
public static function clean_token($token){
if(mb_strlen($token, "UTF-8") > self::MAX_PAYLOAD_SIZE){
throw new Exception("Token exceeds maximum length allowed");
}
return $token;
}
public static function clean_prio($prio){
if(!is_numeric($prio)){
throw new Exception("Priority needs to be a number 0-3");
}
if($prio > 3 | $prio < 0){
throw new Exception("Priority needs to be 0-3");
}
return $prio;
}
public static function parse_uri($uri){
if(strpos($uri, "http" ) === false){
$uri = sprintf("http://%s",$uri);
}
$components = HydnaUtil::get_url_parts($uri);
if(empty($components['scheme'])){
throw new Exception("No url scheme found");
}
$token = HydnaUtil::clean_token($components['query']);
return array(
"scheme" => $components['scheme'],
"host" => $components['host'],
"channel" => $components['path'],
"token" => $token,
"port" => $components['port']
);
}
public static function get_url_parts($uri){
$components = parse_url($uri);
if(!array_key_exists("path", $components)){
$components['path'] = "/";
}
if(!array_key_exists("query", $components)){
$components['query'] = "";
}
if(!array_key_exists("port", $components)){
$components['port'] = self::DEFAULT_PORT;
}
return $components;
}
};
class Hydna{
public $agent = "hydna-php-push";
public static $TIMEOUT = 5;
public function push($domain, $data, $prio=0, $ctoken=""){
$headers = array(
'Content-Type: text/plain',
sprintf('User-Agent: %s', $this->agent)
);
$prio = HydnaUtil::clean_prio($prio);
$headers[] = sprintf('X-Priority: %s', $prio);
return $this->send($domain, $headers, $data);
}
public function emit($domain, $signal, $ctoken=""){
$headers = array(
'X-Emit: yes',
'Content-Type: text/plain',
sprintf('User-Agent: %s',$this->agent)
);
return $this->send($domain, $headers, $signal);
}
private function send($url, $headers, $data){
if(!extension_loaded('curl')){
die('Sorry cURL is not installed!');
}
$uri = HydnaUtil::parse_uri($url);
$curl_handle = curl_init();
$conn = sprintf('%s://%s:%d%s', $uri['scheme'], $uri['host'],
$uri['port'], $uri['channel']);
if(!empty($uri['token'])){
$conn .= sprintf('?%s', $uri['token']);
}
curl_setopt($curl_handle, CURLOPT_URL, $conn);
curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT, Hydna::$TIMEOUT);
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl_handle, CURLOPT_HTTPHEADER, $headers);
$data = HydnaUtil::clean_payload($data);
curl_setopt($curl_handle, CURLOPT_POST, true);
curl_setopt($curl_handle, CURLOPT_POSTFIELDS, $data);
$result = curl_exec($curl_handle);
$code = curl_getinfo($curl_handle, CURLINFO_HTTP_CODE);
curl_close($curl_handle);
if($code != 200){
throw new Exception("Error, response code: ".$code);
}
return true;
}
}
?>