************************************************************************
* accessable methods:
*
+ * void initialize()
+ * has to be called after the settings have been set.
+ *
* void loop()
* loop function that should be calles as many times as possible.
* It reads from the socket and BLOCKS the script execution for a
* void setLoopTimeout(int $timeout)
* sets the maximum time loop() is blocking the script execution.
*
- * void setUplinkServer(int $numeric, String $name, String $password)
+ * void setUplinkServer(int $numeric, String $name, String $password, String $description)
* sets the own P10 Server information.
*
- *
+ * void setValidateServer(String $name, String $password)
+ * sets additional security relevant information about the remote server.
*/
require_once("Client.class.php");
require_once("Numerics.class.php");
+require_once("P10Formatter.class.php");
class Uplink {
private $client = new Client();
private $settings = array();
+ private $server;
+
+ const FLAG_P10SESSION = 0x0001; //connection is in P10 mode (server is connected)
+ const FLAG_SECURITY_QUIT = 0x0002; //local connection abort because of security issues
+ const FLAG_NOT_CONNECTABLE = 0x0004; //remote server is not connectable
+ private $flags = 0;
public function __construct() {
$this->setSettings("recv_timeout", 1000);
}
+ public function initialize() {
+ if($this->server) {
+ trigger_error("Uplink already initialized.", E_USER_ERROR);
+ return;
+ }
+ $self_numeric = $this->getSetting("numeric");
+ $self_name = $this->getSetting("name");
+ $self_description = $this->getSetting("description");
+ if(!$self_numeric || !$self_name) {
+ trigger_error("Server Settings missing.", E_USER_ERROR);
+ return;
+ }
+ $this->server = new P10_Server($self_name, $self_numeric, null, time(), time(), $self_description);
+ }
+
public function loop() {
- if(!$client->connected()) {
+ if($this->server == null) {
+ trigger_error("Uplink not initialized.", E_USER_ERROR);
+ return;
+ }
+ if(!$this->client->connected()) {
+ if(($this->flags & self::FLAG_P10SESSION)) {
+ //Server got disconnected
+ $this->server->disconnectServer(true);
+ $this->flags &= ~self::FLAG_P10SESSION;
+ }
$host = $this->getSetting("host");
$port = $this->getSetting("port");
if($host == null || $port == null) {
- Throw new Exception("Uplink Settings missing.");
+ trigger_error("Uplink Settings missing.", E_USER_ERROR);
return;
}
- $state = $client->connect($host, $port, $this->getSettings("bind"), $this->getSettings("ssl"), $this->getSettings("recv_timeout"));
+ if(($this->flags & self::FLAG_SECURITY_QUIT) || ($this->flags & self::FLAG_NOT_CONNECTABLE)) {
+ sleep(1);
+ }
+ $state = $this->client->connect($host, $port, $this->getSettings("bind"), $this->getSettings("ssl"), $this->getSettings("recv_timeout"));
if(!$state) {
usleep($this->getSetting("recv_timeout") / 1000);
+ $this->flags |= self::FLAG_NOT_CONNECTABLE;
return;
}
+ $this->flags = 0;
+ $this->loginServer();
}
//try to receive new data from the Uplink
- //null
+ $lines = $this->client->recv();
+ if($lines == null) return;
+ foreach($lines as $line) {
+ $this->parseLine($line);
+ }
}
public function setUplink($host, $port, $ssl = false, $bind = null) {
$this->setSetting("recv_timeout", $timeout);
}
- public function setUplinkServer($numeric, $name, $password) {
+ public function setUplinkServer($numeric, $name, $password, $description) {
$this->setSetting("numeric", Numerics::intToNum($numeric, 2));
$this->setSetting("name", $name);
$this->setSetting("password", $password);
+ $this->setSetting("description", $description);
+ }
+
+ public function setValidateServer($name, $password) {
+ $this->setSetting("their_name", $name);
+ $this->setSetting("their_password", $password);
}
private function setSetting($setting, $value) {
}
}
+ private function loginServer() {
+ $password = $this->getSetting("password");
+ $this->send("PASS", $password);
+ $this->send("SERVER", $this->server->getName(), $this->server->getStartTime(), $this->server->getLinkTime(), $this->server->getNumeric(), $this->server->getDescription());
+ }
+
+ private function parseLine($line) {
+ $highExplode = explode(" :", $line, 2);
+ $tokens = explode(" ", $highExplode[0]);
+ if(count($highExplode) > 1)
+ $tokens[] = $highExplode[1];
+ $cmdPos = (($this->flags & self::FLAG_P10SESSION) ? 1 : 0);
+ if($cmdPos == 1) $from = $tokens[0];
+ else $from = null;
+ $arguments = array_slice($tokens, $cmdPos + 1);
+ switch(strtoupper($tokens[$cmdPos])) {
+ //pre P10 Session
+ case "PASS":
+ $this->recv_pass($from, $arguments);
+ break;
+ case "SERVER":
+ $this->recv_server($from, $arguments);
+ break;
+ case "ERROR":
+ $this->recv_error($from, $arguments);
+ break;
+ //P10 Session
+ default:
+ //unknown cmd
+ break;
+ }
+ }
+
+ private function send($command) {
+ if(func_num_args() > 1) {
+ $args = array_slice(func_get_args(), 1);
+ $command = P10Formatter::formatCMD($this->getSetting("numeric"), $command, $args);
+ }
+ $this->client->send($command);
+ }
+
+ /********************************************************************************************
+ * INCOMING COMMANDS *
+ ********************************************************************************************/
+
+ private function recv_pass($from, $args) {
+ $their_pass = $this->getSetting("their_password");
+ if($their_pass) {
+ if($args[0] != $their_pass) {
+ //security QUIT
+ $this->flags |= self::FLAG_SECURITY_QUIT;
+ $this->send("ERROR", "Incorrect password received.");
+ $this->client->disconnect();
+ }
+ }
+ }
+
+ private function recv_error($from, $args) {
+ //we received an error - the socket is dead for us, now
+ //maybe we want to log this, later
+ $this->client->disconnect();
+ }
+
+ private function recv_server($from, $args) {
+ if($from == null) {
+ //our uplink Server
+ $their_name = $this->getSetting("their_name");
+ if($their_name && $args[0] != $their_name) {
+ $this->flags |= self::FLAG_SECURITY_QUIT;
+ $this->send("ERROR", "Invalid Server name");
+ $this->client->disconnect();
+ return;
+ }
+ $new_server = new P10_Server($args[0], substr($args[5],0,2), $this->server, $args[2], $args[3], $args[7]);
+ $this->server->add_server($new_server);
+ $this->flags |= self::FLAG_P10SESSION;
+ } else {
+ //another server got a new slave server ^^
+ $server = P10_Server::getServerByNum($from);
+ if($server == null) {
+ trigger_error("Parent Server (".$from.") does not exist or was not found on recv_server.", E_USER_ERROR);
+ return;
+ }
+ $new_server = new P10_Server($args[0], substr($args[5],0,2), $server, $args[2], $args[3], $args[7]);
+ $server->add_server($new_server);
+ }
+ }
+
}
?>
\ No newline at end of file
projects / PHP-P10.git / blobdiff