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externals/JAXL/core/jaxl_xml_stream.php
- This file was added.
<?php | |||||
/** | |||||
* Jaxl (Jabber XMPP Library) | |||||
* | |||||
* Copyright (c) 2009-2012, Abhinav Singh <me@abhinavsingh.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. | |||||
* | |||||
*/ | |||||
/** | |||||
* | |||||
* Enter description here ... | |||||
* @author abhinavsingh | |||||
* | |||||
*/ | |||||
class JAXLXmlStream { | |||||
private $delimiter = '\\'; | |||||
private $ns; | |||||
private $parser; | |||||
private $stanza; | |||||
private $depth = -1; | |||||
private $start_cb; | |||||
private $stanza_cb; | |||||
private $end_cb; | |||||
public function __construct() { | |||||
$this->init_parser(); | |||||
} | |||||
private function init_parser() { | |||||
$this->depth = -1; | |||||
$this->parser = xml_parser_create_ns("UTF-8", $this->delimiter); | |||||
xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0); | |||||
xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1); | |||||
xml_parser_set_option($this->parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); | |||||
xml_set_character_data_handler($this->parser, array(&$this, "handle_character")); | |||||
xml_set_element_handler($this->parser, array(&$this, "handle_start_tag"), array(&$this, "handle_end_tag")); | |||||
} | |||||
public function __destruct() { | |||||
//_debug("cleaning up xml parser..."); | |||||
@xml_parser_free($this->parser); | |||||
} | |||||
public function reset_parser() { | |||||
$this->parse_final(null); | |||||
@xml_parser_free($this->parser); | |||||
$this->parser = null; | |||||
$this->init_parser(); | |||||
} | |||||
public function set_callback($start_cb, $end_cb, $stanza_cb) { | |||||
$this->start_cb = $start_cb; | |||||
$this->end_cb = $end_cb; | |||||
$this->stanza_cb = $stanza_cb; | |||||
} | |||||
public function parse($str) { | |||||
xml_parse($this->parser, $str, false); | |||||
} | |||||
public function parse_final($str) { | |||||
xml_parse($this->parser, $str, true); | |||||
} | |||||
protected function handle_start_tag($parser, $name, $attrs) { | |||||
$name = $this->explode($name); | |||||
//echo "start of tag ".$name[1]." with ns ".$name[0].PHP_EOL; | |||||
// replace ns with prefix | |||||
foreach($attrs as $key=>$v) { | |||||
$k = $this->explode($key); | |||||
// no ns specified | |||||
if($k[0] == null) { | |||||
$attrs[$k[1]] = $v; | |||||
} | |||||
// xml ns | |||||
else if($k[0] == NS_XML) { | |||||
unset($attrs[$key]); | |||||
$attrs['xml:'.$k[1]] = $v; | |||||
} | |||||
else { | |||||
_error("==================> unhandled ns prefix on attribute"); | |||||
// remove attribute else will cause error with bad stanza format | |||||
// report to developer if above error message is ever encountered | |||||
unset($attrs[$key]); | |||||
} | |||||
} | |||||
if($this->depth <= 0) { | |||||
$this->depth = 0; | |||||
$this->ns = $name[1]; | |||||
if($this->start_cb) { | |||||
$stanza = new JAXLXml($name[1], $name[0], $attrs); | |||||
call_user_func($this->start_cb, $stanza); | |||||
} | |||||
} | |||||
else { | |||||
if(!$this->stanza) { | |||||
$stanza = new JAXLXml($name[1], $name[0], $attrs); | |||||
$this->stanza = &$stanza; | |||||
} | |||||
else { | |||||
$this->stanza->c($name[1], $name[0], $attrs); | |||||
} | |||||
} | |||||
++$this->depth; | |||||
} | |||||
protected function handle_end_tag($parser, $name) { | |||||
$name = explode($this->delimiter, $name); | |||||
$name = sizeof($name) == 1 ? array('', $name[0]) : $name; | |||||
//echo "depth ".$this->depth.", $name[1] tag ended".PHP_EOL.PHP_EOL; | |||||
if($this->depth == 1) { | |||||
if($this->end_cb) { | |||||
$stanza = new JAXLXml($name[1], $this->ns); | |||||
call_user_func($this->end_cb, $stanza); | |||||
} | |||||
} | |||||
else if($this->depth > 1) { | |||||
if($this->stanza) $this->stanza->up(); | |||||
if($this->depth == 2) { | |||||
if($this->stanza_cb) { | |||||
call_user_func($this->stanza_cb, $this->stanza); | |||||
$this->stanza = null; | |||||
} | |||||
} | |||||
} | |||||
--$this->depth; | |||||
} | |||||
protected function handle_character($parser, $data) { | |||||
//echo "depth ".$this->depth.", character ".$data." for stanza ".$this->stanza->name.PHP_EOL; | |||||
if($this->stanza) { | |||||
$this->stanza->t(htmlentities($data, ENT_COMPAT, "UTF-8"), TRUE); | |||||
} | |||||
} | |||||
private function implode($data) { | |||||
return implode($this->delimiter, $data); | |||||
} | |||||
private function explode($data) { | |||||
$data = explode($this->delimiter, $data); | |||||
$data = sizeof($data) == 1 ? array(null, $data[0]) : $data; | |||||
return $data; | |||||
} | |||||
} | |||||
?> |