<?php
/**
* Jaxl (Jabber XMPP Library)
*
* Copyright (c) 2009-2010, Abhinav Singh <hide@address.com>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Abhinav Singh nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package jaxl
* @subpackage xep
* @author Abhinav Singh <hide@address.com>
* @copyright Abhinav Singh
* @link http://code.google.com/p/jaxl
*/
/**
* XEP-0047: In-Band Bytestreams
*/
class JAXL0047 {
public static $id = array();
public static $ns = 'http://jabber.org/protocol/ibb';
public static function init($jaxl) {
$jaxl->features[] = self::$ns;
JAXLXml::addTag('iq', 'open', '//iq/open/@xmlns');
JAXLXml::addTag('iq', 'openSid', '//iq/open/@sid');
JAXLXml::addTag('iq', 'openBlkSize', '//iq/open/@block-size');
JAXLXml::addTag('iq', 'data', '//iq/data/@xmlns');
JAXLXml::addTag('iq', 'dataSid', '//iq/data/@sid');
JAXLXml::addTag('iq', 'dataSeq', '//iq/data/@seq');
JAXLXml::addTag('iq', 'dataEncoded', '//iq/data');
JAXLXml::addTag('iq', 'close', '//iq/close/@xmlns');
JAXLXml::addTag('iq', 'closeSid', '//iq/close/@sid');
$jaxl->addPlugin('jaxl_get_iq_set', array('JAXL0047', 'handleTransfer'));
}
public static function handleTransfer($payload, $jaxl) {
if($payload['open'] == self::$ns) {
$jaxl->log("[[JAXL0047]] File transfer opened for siId ".$payload['openSid']);
file_put_contents($jaxl->tmpPath.'/'.$payload['openSid'], '');
XMPPSend::iq($jaxl, 'result', '', $payload['from'], $payload['to'], false, $payload['id']);
}
else if($payload['data'] == self::$ns) {
$jaxl->log("[[JAXL0047]] Accepting transfer data for siId ".$payload['dataSid']);
$data = base64_decode($payload['dataEncoded']);
file_put_contents($jaxl->tmpPath.'/'.$payload['dataSid'], $data, FILE_APPEND);
XMPPSend::iq($jaxl, 'result', '', $payload['from'], $payload['to'], false, $payload['id']);
}
else if($payload['close'] == self::$ns) {
$jaxl->log("[[JAXL0047]] Transfer complete for siId ".$payload['closeSid']);
$jaxl->executePlugin('jaxl_post_file_request', array('tmp'=>$jaxl->tmpPath.'/'.$payload['closeSid']));
XMPPSend::iq($jaxl, 'result', '', $payload['from'], $payload['to'], false, $payload['id']);
}
return $payload;
}
public static function sendFile($jaxl, $payload) {
// initiate file request session
$jaxl->log("[[JAXL0047]] Opening file transfer with siId ".$payload['siId']);
$xml = '<open xmlns="'.self::$ns.'" block-size="4096" sid="'.$payload['siId'].'" stanza="iq"/>';
$id = XMPPSend::iq($jaxl, 'set', $xml, $payload['to'], false, array('JAXL0047', 'transferFile'));
self::$id[$id] = $payload;
self::$id[$id]['seq'] = 0;
self::$id[$id]['block-size'] = 4096;
self::$id[$id]['stanza'] = 'iq';
return $id;
}
public static function transferFile($payload, $jaxl) {
if(!isset(self::$id[$payload['id']]))
return $payload;
// iq id buffered for file transfer, transmit data
$fp = fopen(self::$id[$payload['id']]['file'], 'r');
fseek($fp, self::$id[$payload['id']]['seq']*self::$id[$payload['id']]['block-size']);
$data = fread($fp, self::$id[$payload['id']]['block-size']);
fclose($fp);
if(self::$id[$payload['id']]['seq'] == -1) {
$jaxl->log("[[JAXL0047]] File transfer complete for siId ".self::$id[$payload['id']]['siId']);
$jaxl->executePlugin('jaxl_post_file_transfer', self::$id[$payload['id']]);
unset(self::$id[$payload['id']]);
return;
}
else if(strlen($data) == 0) {
$jaxl->log("[[JAXL0047]] File transfer closed for siId ".self::$id[$payload['id']]['siId']);
$xml = '<close xmlns="'.self::$ns.'" sid="'.self::$id[$payload['id']]['siId'].'"/>';
$id = XMPPSend::iq($jaxl, 'set', $xml, self::$id[$payload['id']]['to'], false, array('JAXL0047', 'transferFile'));
self::$id[$id] = self::$id[$payload['id']];
self::$id[$id]['seq'] = -1;
unset(self::$id[$payload['id']]);
return $id;
}
else {
$jaxl->log("[[JAXL0047]] Transfering file data for seq ".self::$id[$payload['id']]['seq']." for siId ".self::$id[$payload['id']]['siId']);
$xml = '<data xmlns="'.self::$ns.'" seq="'.self::$id[$payload['id']]['seq'].'" sid="'.self::$id[$payload['id']]['siId'].'">';
$xml .= base64_encode($data);
$xml .= '</data>';
$id = XMPPSend::iq($jaxl, 'set', $xml, self::$id[$payload['id']]['to'], false, array('JAXL0047', 'transferFile'));
self::$id[$id] = self::$id[$payload['id']];
self::$id[$id]['seq'] = self::$id[$id]['seq']+1;
unset(self::$id[$payload['id']]);
return $id;
}
}
}
?>