336 lines
9.0 KiB
PHP
336 lines
9.0 KiB
PHP
<?php
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/*
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XMPPHP: The PHP XMPP Library
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Copyright (C) 2008 Nathanael C. Fritz
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This file is part of SleekXMPP.
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XMPPHP is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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XMPPHP is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with XMPPHP; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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require_once("xmlobj.php");
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require_once("logging.php");
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class XMLStream {
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var $socket;
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var $parser;
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var $buffer;
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var $xml_depth = 0;
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var $host;
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var $port;
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var $stream_start = '<stream>';
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var $stream_end = '</stream';
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var $disconnected = false;
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var $sent_disconnect = False;
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var $ns_map = array();
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var $current_ns = array();
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var $xmlobj = Null;
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var $nshandlers = array();
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var $idhandlers = array();
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var $eventhandlers = array();
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var $lastid = 0;
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var $default_ns;
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var $until = '';
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var $until_happened = False;
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var $until_payload = array();
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var $log;
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var $reconnect = True;
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var $been_reset = False;
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var $is_server;
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function XMLStream($host=Null, $port=Null, $log=False, $loglevel=Null, $is_server=False) {
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$this->reconnect = !$is_server;
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$this->is_server = $is_server;
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$this->host = $host;
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$this->port = $port;
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$this->setupParser();
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$this->log = new Logging($log, $loglevel);
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}
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function getId() {
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$this->lastid++;
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return $this->lastid;
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}
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function addIdHandler($id, $pointer, $obj=Null) {
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$this->idhandlers[$id] = array($pointer, $obj);
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}
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function addHandler($name, $ns, $pointer, $obj=Null, $depth=1) {
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$this->nshandlers[] = array($name,$ns,$pointer,$obj, $depth);
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}
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function addEventHandler($name, $pointer, $obj) {
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$this->eventhanders[] = array($name, $pointer, $obj);
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}
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function connect($persistent=False, $sendinit=True) {
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$this->disconnected = False;
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$this->sent_disconnect = False;
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if($persistent) {
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$conflag = STREAM_CLIENT_CONNECT | STREAM_CLIENT_PERSISTENT;
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} else {
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$conflag = STREAM_CLIENT_CONNECT;
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}
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$this->log->log("Connecting to tcp://{$this->host}:{$this->port}");
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$this->socket = stream_socket_client("tcp://{$this->host}:{$this->port}", $flags=$conflag);
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stream_set_blocking($this->socket, 1);
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if($sendinit) $this->send($this->stream_start);
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}
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function apply_socket($socket) {
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$this->socket = $socket;
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}
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function process() {
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$updated = '';
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while(!$this->disconnect) {
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$read = array($this->socket);
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$write = NULL;
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$except = NULL;
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$updated = stream_select($read, $write, $except, 1);
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if ($updated > 0) {
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$buff = @fread($this->socket, 1024);
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if(!$buff) {
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if($this->reconnect) {
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$this->doReconnect();
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} else {
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fclose($this->socket);
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return False;
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}
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}
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$this->log->log("RECV: $buff", LOGGING_VERBOSE);
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xml_parse($this->parser, $buff, False);
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}
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}
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}
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function read() {
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$buff = @fread($this->socket, 1024);
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if(!$buff) {
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if($this->reconnect) {
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$this->doReconnect();
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} else {
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fclose($this->socket);
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return False;
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}
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}
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$this->log->log("RECV: $buff", LOGGING_VERBOSE);
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xml_parse($this->parser, $buff, False);
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}
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function processTime($timeout=-1) {
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$start = time();
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$updated = '';
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while(!$this->disconnected and ($timeout == -1 or time() - $start < $timeout)) {
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$read = array($this->socket);
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$write = NULL;
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$except = NULL;
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$updated = stream_select($read, $write, $except, 1);
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if ($updated > 0) {
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$buff = @fread($this->socket, 1024);
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if(!$buff) {
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if($this->reconnect) {
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$this->doReconnect();
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} else {
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fclose($this->socket);
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return False;
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}
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}
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$this->log->log("RECV: $buff", LOGGING_VERBOSE);
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xml_parse($this->parser, $buff, False);
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}
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}
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}
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function processUntil($event, $timeout=-1) {
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$start = time();
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if(!is_array($event)) $event = array($event);
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$this->until[] = $event;
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end($this->until);
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$event_key = key($this->until);
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reset($this->until);
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$updated = '';
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while(!$this->disconnected and $this->until[$event_key] and (time() - $start < $timeout or $timeout == -1)) {
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$read = array($this->socket);
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$write = NULL;
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$except = NULL;
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$updated = stream_select($read, $write, $except, 1);
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if ($updated > 0) {
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$buff = @fread($this->socket, 1024);
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if(!$buff) {
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if($this->reconnect) {
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$this->doReconnect();
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} else {
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fclose($this->socket);
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return False;
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}
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}
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$this->log->log("RECV: $buff", LOGGING_VERBOSE);
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xml_parse($this->parser, $buff, False);
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}
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}
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$payload = $this->until_payload[$event_key];
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unset($this->until_payload[$event_key]);
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return $payload;
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}
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function startXML($parser, $name, $attr) {
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if($this->been_reset) {
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$this->been_reset = False;
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$this->xml_depth = 0;
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}
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$this->xml_depth++;
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if(array_key_exists('XMLNS', $attr)) {
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$this->current_ns[$this->xml_depth] = $attr['XMLNS'];
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} else {
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$this->current_ns[$this->xml_depth] = $this->current_ns[$this->xml_depth - 1];
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if(!$this->current_ns[$this->xml_depth]) $this->current_ns[$this->xml_depth] = $this->default_ns;
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}
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$ns = $this->current_ns[$this->xml_depth];
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foreach($attr as $key => $value) {
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if(strstr($key, ":")) {
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$key = explode(':', $key);
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$key = $key[1];
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$this->ns_map[$key] = $value;
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}
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}
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if(!strstr($name, ":") === False)
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{
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$name = explode(':', $name);
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$ns = $this->ns_map[$name[0]];
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$name = $name[1];
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}
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$obj = new XMLObj($name, $ns, $attr);
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if($this->xml_depth > 1)
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$this->xmlobj[$this->xml_depth - 1]->subs[] = $obj;
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$this->xmlobj[$this->xml_depth] = $obj;
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}
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function endXML($parser, $name) {
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if($this->been_reset) {
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$this->been_reset = False;
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$this->xml_depth = 0;
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}
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$this->xml_depth--;
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if($this->xml_depth == 1) {
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#clean-up old objects
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$found = False;
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foreach($this->nshandlers as $handler) {
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if($handler[4] != 1 and $this->xmlobj[2]->hassub($handler[0])) {
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$searchxml = $this->xmlobj[2]->sub($handler[0]);
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} else {
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$searchxml = $this->xmlobj[2];
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}
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if($searchxml->name == $handler[0] and ($searchxml->ns == $handler[1] or (!$handler[1] and $searchxml->ns == $this->default_ns))) {
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if($handler[3] === Null) $handler[3] = $this;
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call_user_method($handler[2], $handler[3], $this->xmlobj[2]);
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}
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}
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foreach($this->idhandlers as $id => $handler) {
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if($this->xmlobj[2]->attrs['id'] == $id) {
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if($handler[1] === Null) $handler[1] = $this;
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call_user_method($handler[0], $handler[1], $this->xmlobj[2]);
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#id handlers are only used once
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unset($this->idhandlers[$id]);
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break;
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}
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}
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if(is_array($this->xmlobj)) {
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$this->xmlobj = array_slice($this->xmlobj, 0, 1);
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$this->xmlobj[0]->subs = Null;
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}
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unset($this->xmlobj[2]);
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}
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if($this->xml_depth == 0 and !$this->been_reset) {
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if(!$this->disconnected) {
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if(!$this->sent_disconnect) {
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$this->send($this->stream_end);
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}
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$this->disconnected = True;
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$this->sent_disconnect = True;
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fclose($this->socket);
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if($this->reconnect) {
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$this->doReconnect();
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}
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}
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$this->event('end_stream');
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}
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}
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function doReconnect() {
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if(!$this->is_server) {
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$this->log->log("Reconnecting...", LOGGING_WARNING);
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$this->connect(False, False);
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$this->reset();
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}
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}
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function disconnect() {
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$this->reconnect = False;
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$this->send($this->stream_end);
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$this->sent_disconnect = True;
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$this->processUntil('end_stream', 5);
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$this->disconnected = True;
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}
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function event($name, $payload=Null) {
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$this->log->log("EVENT: $name", LOGGING_DEBUG);
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foreach($this->eventhandlers as $handler) {
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if($name == $handler[0]) {
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if($handler[2] === Null) $handler[2] = $this;
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call_user_method($handler[1], $handler[2], $payload);
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}
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}
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foreach($this->until as $key => $until) {
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if(is_array($until)) {
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if(in_array($name, $until)) {
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$this->until_payload[$key][] = array($name, $payload);
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$this->until[$key] = False;
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}
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}
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}
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}
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function charXML($parser, $data) {
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$this->xmlobj[$this->xml_depth]->data .= $data;
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}
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function send($msg) {
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#socket_write($this->socket, $msg);
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$this->log->log("SENT: $msg", LOGGING_VERBOSE);
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fwrite($this->socket, $msg);
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}
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function reset() {
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$this->xml_depth = 0;
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unset($this->xmlobj);
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$this->setupParser();
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if(!$this->is_server) {
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$this->send($this->stream_start);
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}
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$this->been_reset = True;
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}
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function setupParser() {
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unset($this->parser);
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$this->parser = xml_parser_create('UTF-8');
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xml_parser_set_option($this->parser,XML_OPTION_SKIP_WHITE,1);
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xml_parser_set_option($this->parser,XML_OPTION_TARGET_ENCODING, "UTF-8");
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xml_set_object($this->parser, $this);
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xml_set_element_handler($this->parser, 'startXML', 'endXML');
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xml_set_character_data_handler($this->parser, 'charXML');
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}
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}
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