activemq/stomp/php/Stomp.php

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<?php
/**
*
* Copyright 2005-2006 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* vim: set expandtab tabstop=3 shiftwidth=3: */
/**
* A StompFrame are the messages that are sent and received on a StompConnection.
*
* @package Stomp
* @author Hiram Chirino <hiram@hiramchirino.com>
* @version $Revision$
*/
class StompFrame {
var $command;
var $headers;
var $body;
function StompFrame($command = null, $headers=null, $body=null) {
$this->command = $command;
$this->headers = $headers;
$this->body = $body;
}
}
/**
* A Stomp Connection
*
* The class wraps around HTTP_Request providing a higher-level
* API for performing multiple HTTP requests
*
* @package Stomp
* @author Hiram Chirino <hiram@hiramchirino.com>
* @version $Revision$
*/
class StompConnection {
var $socket;
function StompConnection($host, $port = 61613) {
$this->socket = socket_create(AF_INET, SOCK_STREAM, 0) or die("Could not create socket\n");
$result = socket_connect($this->socket, $host, $port) or die("Could not connect to server\n");
}
function connect($userName="", $password="") {
$this->writeFrame( new StompFrame("CONNECT", array("login"=>$userName, "passcode"=> $password ) ) );
return $this->readFrame();
}
function send($destination, $body, $properties=null) {
$headers = array();
if( isset($properties) ) {
foreach ($properties as $name => $value) {
$headers[$name] = $value;
}
}
$headers["destination"] = $destination ;
$this->writeFrame( new StompFrame("SEND", $headers, $body) );
}
function subscribe($destination, $properties=null) {
$headers = array("ack"=>"client");
if( isset($properties) ) {
foreach ($properties as $name => $value) {
$headers[$name] = $value;
}
}
$headers["destination"] = $destination ;
$this->writeFrame( new StompFrame("SUBSCRIBE", $headers) );
}
function unsubscribe($destination, $properties=null) {
$headers = array();
if( isset($properties) ) {
foreach ($properties as $name => $value) {
$headers[$name] = $value;
}
}
$headers["destination"] = $destination ;
$this->writeFrame( new StompFrame("UNSUBSCRIBE", $headers) );
}
function begin($transactionId=null) {
$headers = array();
if( isset($transactionId) ) {
$headers["transaction"] = $transactionId;
}
$this->writeFrame( new StompFrame("BEGIN", $headers) );
}
function commit($transactionId=null) {
$headers = array();
if( isset($transactionId) ) {
$headers["transaction"] = $transactionId;
}
$this->writeFrame( new StompFrame("COMMIT", $headers) );
}
function abort($transactionId=null) {
$headers = array();
if( isset($transactionId) ) {
$headers["transaction"] = $transactionId;
}
$this->writeFrame( new StompFrame("ABORT", $headers) );
}
function acknowledge($messageId, $transactionId=null) {
$headers = array();
if( isset($transactionId) ) {
$headers["transaction"] = $transactionId;
}
$headers["message-id"] = $messageId ;
$this->writeFrame( new StompFrame("ABORT", $headers) );
}
function disconnect() {
$this->writeFrame( new StompFrame("DISCONNECT") );
socket_close($this->socket);
}
function writeFrame($stompFrame) {
$data = $stompFrame->command . "\n";
if( isset($stompFrame->headers) ) {
foreach ($stompFrame->headers as $name => $value) {
$data .= $name . ": " . $value . "\n";
}
}
$data .= "\n";
if( isset($stompFrame->body) ) {
$data .= $stompFrame->body;
}
$l1 = strlen($data);
$data .= "\x00\n";
$l2 = strlen($data);
socket_write($this->socket, $data, strlen($data)) or die("Could not send stomp frame to server\n");
}
function readFrame() {
$rc = socket_recv($this->socket, &$b, 1, 0);
// I think this EOF
if( $rc == 0 ) {
return null;
}
// I think this is no data.
if( $rc == false ) {
return null;
}
// Read until end of frame.
while( ord($b) != 0 ) {
$data .= $b;
$t = ord($b);
$rc = socket_recv($this->socket,&$b,1,0);
// I think this EOF
if( $rc == 0 ) {
return null;
}
}
# Read in the \n that comes after the \0
$rc = socket_recv($this->socket,&$b,1,0);
if( $rc == 0 ) {
return null;
}
if( ord($b) != 10 ) {
return null;
}
list($header, $body) = explode("\n\n", $data, 2);
$header = explode("\n", $header);
$headers = array();
$command = null;
foreach ($header as $v) {
if( isset($command) ) {
list($name, $value) = explode(':', $v, 2);
$headers[$name]=$value;
} else {
$command = $v;
}
}
return new StompFrame($command, $headers, $body);
}
}
?>