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<?php
namespace Zotlabs\Zot;
class Receiver {
protected $data;
protected $encrypted;
protected $error;
protected $messagetype;
protected $sender;
protected $validated;
protected $recipients;
protected $response;
protected $handler;
function __construct($data,$prvkey,$handler) {
$this->error = false;
$this->validated = false;
$this->messagetype = '';
$this->response = array('success' => false);
$this->handler = $handler;
if(! is_array($data))
$data = json_decode($data,true);
if($data && is_array($data)) {
$this->encrypted = ((array_key_exists('iv',$data)) ? true : false);
if($this->encrypted) {
$this->data = @json_decode(@crypto_unencapsulate($data,$prvkey),true);
}
if(! $this->data)
$this->data = $data;
if($this->data && is_array($this->data) && array_key_exists('type',$this->data))
$this->messagetype = $this->data['type'];
}
if(! $this->messagetype)
$this->error = true;
$this->sender = ((array_key_exists('sender',$this->data)) ? $this->data['sender'] : null);
$this->recipients = ((array_key_exists('recipients',$this->data)) ? $this->data['recipients'] : null);
if($this->sender)
$this->ValidateSender();
$this->Dispatch();
}
function ValidateSender() {
$hubs = zot_gethub($this->sender,true);
if (! $hubs) {
/* Have never seen this guid or this guid coming from this location. Check it and register it. */
/* (!!) this will validate the sender. */
$result = zot_register_hub($this->sender);
if ((! $result['success']) || (! ($hubs = zot_gethub($this->sender,true)))) {
$this->response['message'] = 'Hub not available.';
json_return_and_die($this->response);
}
}
foreach($hubs as $hub) {
update_hub_connected($hub,((array_key_exists('sitekey',$this->sender)) ? $this->sender['sitekey'] : ''));
}
$this->validated = true;
}
function Dispatch() {
/* Handle tasks which don't require sender validation */
switch($this->messagetype) {
case 'ping':
/* no validation needed */
$this->handler->Ping();
break;
case 'pickup':
/* perform site validation, as opposed to sender validation */
$this->handler->Pickup($this->data);
break;
default:
if(! $this->validated) {
$this->response['message'] = 'Sender not valid';
json_return_and_die($this->response);
}
break;
}
/* Now handle tasks which require sender validation */
switch($this->messagetype) {
case 'auth_check':
$this->handler->AuthCheck($this->data,$this->encrypted);
break;
case 'request':
$this->handler->Request($this->data);
break;
case 'purge':
$this->handler->Purge($this->sender,$this->recipients);
break;
case 'refresh':
case 'force_refresh':
$this->handler->Refresh($this->sender,$this->recipients);
break;
case 'notify':
$this->handler->Notify($this->data);
break;
default:
$this->response['message'] = 'Not implemented';
json_return_and_die($this->response);
break;
}
}
}
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