[TASK] Moved the project to namespaces.
[TASK] Removed all the protocol handlers. [TASK] Clients are no longer part of the SocketFramework itself. [TASK] The Framework provides an "interface" to external clients - the ClientDispatcher. [TASK] Added the Core package and added a better ClassLoader. [TASK] Created a bootstrap module to include in other projects. [TASK] Cleaned up comments, reformatted them.
This commit is contained in:
Jan Philipp Timme
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<?php
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namespace JPT\SocketFramework\Socket;
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/**
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* The SocketHandler class will handle a single socket.
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* It takes care of the very basic socket functions.
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*
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* @author jpt
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* @package Socket
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*/
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class SocketHandler {
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/**
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* Socket ressource
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*
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* @var ressource
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*/
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protected $socket;
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/**
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* @var boolean
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*/
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protected $isConnected;
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/**
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* @var boolean
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*/
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protected $isBound;
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/**
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* @var boolean
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*/
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protected $isListening;
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/**
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* Default constructor. Sets the socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @param ressource $socket
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* @return void
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*/
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public function __construct($socket) {
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if(is_resource($socket) === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Invalid socket ressource!", 1289663108);
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$this->socket = $socket;
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$this->isBound = FALSE;
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$this->isConnected = FALSE;
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$this->isListening = FALSE;
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}
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/**
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* Destructor. Closes socket.
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*
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* @return void
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*/
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public function __destruct() {
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$this->close();
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}
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/**
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* Returns socket.
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*
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* @return ressource
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*/
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public function getSocket() {
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return $this->socket;
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}
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/**
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* @return boolean
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*/
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public function isConnected() {
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return $this->isConnected;
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}
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/**
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* Sets isConnected-flag.
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*
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* @param boolean $connected
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* @return void
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*/
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public function setConnected($connected) {
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$this->isConnected = $connected;
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}
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/**
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* @return boolean
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*/
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public function isListening() {
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return $this->isListening;
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}
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/**
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* Connects to a specified address.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @param string $address
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* @param int $port
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* @return void
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*/
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public function connect($address, $port) {
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if($this->isConnected === TRUE) throw new \JPT\SocketFramework\Exception\SocketException("Socket is already connected!", 1289663170);
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$result = socket_connect($this->socket, $address, $port);
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if($result === FALSE) $this->handleSocketError();
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$this->isConnected = TRUE;
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}
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/**
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* Binds the socket to an address + port.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @param string $address
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* @param int $port
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* @return void
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*/
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public function bind($address, $port) {
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if($this->isBound === TRUE) throw new \JPT\SocketFramework\Exception\SocketException("Socket is already bound!", 1289663212);
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$result = socket_set_option($this->socket, \SOL_SOCKET, \SO_REUSEADDR, 1);
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if($result === FALSE) $this->handleSocketError();
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$result = socket_bind($this->socket, $address, $port);
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if($result === FALSE) $this->handleSocketError();
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$this->isBound = TRUE;
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}
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/**
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* Let's the socket listen for incoming connections.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return void
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*/
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public function listen() {
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if($this->isBound === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Cannot listen on unbound socket!", 1289663220);
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$result = socket_listen($this->socket);
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if($result === FALSE) $this->handleSocketError();
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$this->isListening = TRUE;
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}
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/**
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* Tells the SocketHandler that he got accepted.
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*
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* @return void
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*/
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public function hasBeenAccepted() {
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$this->isConnected = TRUE;
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}
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/**
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* Accepts a connection to a socket that is bound and listens.
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* The ressource has to be added to the SocketPool manually.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return ressource
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*/
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public function accept() {
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if($this->isBound === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Cannot accept connections from unbound socket!", 1289663239);
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if($this->isListening === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Cannot accept connections from socket that is not listening!", 1289663241);
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$accept = socket_accept($this->socket);
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if($accept === FALSE) $this->handleSocketError();
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return $accept;
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}
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/**
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* Returns ip + port of the remote socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return string
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*/
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public function getRemoteName() {
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if($this->isConnected === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Socket not connected, cannot retrieve remote name!", 1289928192);
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$result = socket_getpeername($this->socket, $address, $port);
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if($result === FALSE) $this->handleSocketError();
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return $address . ":" . $port;
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}
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/**
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* Returns ip + port of the local socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return string
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*/
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public function getLocalName() {
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if($this->isBound === FALSE ^ $this->isConnected === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("Socket is not bound or connected, no local name available!", 1289928256);
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$result = socket_getsockname($this->socket, $address, $port);
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if($result === FALSE) $this->handleSocketError();
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return $address . ":" . $port;
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}
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/**
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* Writes data to the socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @param string $data
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* @return void
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*/
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public function write($data) {
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$result = socket_write($this->socket, $data);
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if($result === FALSE) $this->handleSocketError();
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}
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/**
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* Reads data from the socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @param int $length
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* @return string
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*/
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public function read($length = 16384) {
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$result = socket_read($this->socket, $length, \PHP_BINARY_READ);
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if($result === FALSE) $this->handleSocketError();
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return $result;
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}
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/**
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* Shuts the socket down after waiting a bit (waiting might be optional).
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return void
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*/
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public function close() {
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usleep(100000); //we'll wait here since socket_shutdown _might_ fail without it.
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if($this->isConnected === TRUE) {
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$result = socket_shutdown($this->socket);
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if($result === FALSE) $this->handleSocketError();
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}
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if(is_resource($this->socket)) {
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$result = socket_close($this->socket);
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if($result === FALSE) $this->handleSocketError();
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}
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$this->isConnected = FALSE;
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}
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/**
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* Gets last error from socket.
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*
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* @throws \JPT\SocketFramework\Exception\SocketException
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* @return void
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*/
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protected function handleSocketError() {
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if(is_resource($this->socket) === FALSE) throw new \JPT\SocketFramework\Exception\SocketException("No socket resource available!", 1290954177);
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$errno = socket_last_error($this->socket);
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$error = socket_strerror($errno);
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socket_clear_error();
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$errormsg = "[" . $errno . "] " . $error;
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throw new \JPT\SocketFramework\Exception\SocketException("A socket error occured: " . $errormsg, 1289663360);
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}
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}
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?>
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