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xml_class.php
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xml_class.php
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<?php
/*
* e107 website system
*
* Copyright (C) 2008-2011 e107 Inc (e107.org)
* Released under the terms and conditions of the
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)
*
* Simple XML Parser
*
* $URL $
* $Id$
*/
if (!defined('e107_INIT')) { exit; }
/**
*
*/
class parseXml extends xmlClass // BC with v1.x
{
private $xmlData = array();
private $counterArray = array();
function __construct()
{
$data = debug_backtrace(true);
$log = e107::getLog();
$log->addDebug('Deprecated XML Parser Used');
$log->addArray($data);
$log->save('DEPRECATED',E_LOG_NOTICE,'',false, LOG_TO_ROLLING);
}
/**
* @param $feed
* @return void
*/
function setUrl($feed)
{
$this->setFeedUrl($feed);
}
/**
* @param $address
* @param $timeout
* @return false|string
*/
function getRemoteXmlFile($address, $timeout = 10)
{
// $data = $this->getRemoteFile($address, $timeout);
$fl = e107::getFile();
$data = $fl->getRemoteContent($address, ['timeout' => $timeout]);
$this->xmlLegacyContents = $data;
return $data;
}
/**
* @return array|false
*/
function parseXmlContents ()
{
$log = e107::getLog();
foreach($this -> xmlData as $key => $value)
{
unset($this -> xmlData[$key]);
}
foreach($this -> counterArray as $key => $value)
{
unset($this -> counterArray[$key]);
}
if(!function_exists('xml_parser_create'))
{
$log->addDebug("No XML source specified")->save('XML',E_LOG_WARNING);
return FALSE;
}
if(!$this -> xmlLegacyContents)
{
$log->addDebug("No XML source specified")->save('XML');
return FALSE;
}
$this->parser = xml_parser_create('');
xml_set_object($this->parser, $this);
xml_set_element_handler($this->parser, 'startElement', 'endElement');
xml_set_character_data_handler( $this->parser, 'characterData' );
$array = explode("\n", $this -> xmlLegacyContents);
foreach($array as $data)
{
if(strlen($data) == 4096)
{
$log->addDebug("The XML cannot be parsed as it is badly formed.")->save('XML');
return FALSE;
}
if (!xml_parse($this->parser, $data))
{
$error = sprintf('XML error: %s at line %d, column %d', xml_error_string(xml_get_error_code($this->parser)), xml_get_current_line_number($this->parser),xml_get_current_column_number($this->parser));
$log->addDebug($error)->save('XML');
if(e_DEBUG === true)
{
$error .= "\n".$data;
$error .= "\n--------------------------------------------\n\n";
$log->addDebug($error)->toFile('xmlErrors',"XML Error Log",true);
}
return FALSE;
}
}
xml_parser_free( $this->parser );
return $this -> xmlData;
}
/**
* @param $p
* @param $element
* @param $attrs
* @return void
*/
function startElement ($p, $element, &$attrs)
{
$this -> start_tag = $element;
$this -> current_tag = strtolower($element);
if(!array_key_exists($this -> current_tag, $this -> counterArray))
{
$this -> counterArray[$this -> current_tag] = 0;
$this -> xmlData[$this -> current_tag][$this -> counterArray[$this -> current_tag]] = "";
}
}
/**
* @param $p
* @param $element
* @return void
*/
function endElement ($p, $element)
{
if($this -> start_tag == $element)
{
$this -> counterArray[$this -> current_tag] ++;
}
}
/**
* @param $p
* @param $data
* @return void
*/
function characterData ($p, $data)
{
$data = trim ( rtrim ( $data ));
$data = preg_replace('/&(?!amp;)/', '&', $data);
if(!array_key_exists($this -> current_tag, $this -> xmlData))
{
$this -> xmlData [$this -> current_tag] = array();
}
if(array_key_exists($this -> counterArray[$this -> current_tag], $this -> xmlData [$this -> current_tag]))
{
$this -> xmlData [$this -> current_tag] [$this -> counterArray[$this -> current_tag]] .= $data;
}
else
{
$this -> xmlData [$this -> current_tag] [$this -> counterArray[$this -> current_tag]] = $data;
}
}
}
/**
* Simple XML Parser
*
* @package e107
* @category e107_handlers
* @version 1.1
* @author McFly
* @copyright Copyright (c) 2009, e107 Inc.
*/
class xmlClass
{
/**
* Loaded XML string
*
* @var string
*/
public $xmlFileContents = '';
/**
* Set to FALSE if not enabled (default on initialisation)
* Otherwise mirrors the required subset of the loaded XML - set a field FALSE to accept all
* ...elements lower down the tree. e.g.:
* <code>
* $filter = array(
* 'name' => FALSE,
* 'administration' => FALSE,
* 'management' => array('install' => FALSE)
* );
* </code>
*
* @see setOptFilter()
* @see parseXml()
* @see xml2array()
* @var mixed
*/
public $filter = false; // Optional filter for loaded XML
/**
* Set true to strip all mention of comments from the returned array (default);
* FALSE to return comment markers (object SimpleXMLElement)
*
* @see setOptStripComments()
* @see parseXml()
* @see xml2array()
* @var boolean
*/
public $stripComments = true;
/**
* Log of all paths replaced.
*
* @var array
*/
public $fileConvertLog = array();
public $convertFilePaths = FALSE;
public $modifiedPrefsOnly = false;
public $filePathDestination = FALSE;
public $convertFileTypes = array("jpg", "gif", "png", "jpeg");
public $filePathPrepend = array();
public $filePathConvKeys = array();
public $errors;
private $arrayTags;
private $stringTags;
private $urlPrefix = false;
/**
* Add root element to the result array
* Exmple:
* <code>
* <root>
* <tag>some value</tag>
* </root>
* </code>
*
* if
* <code>$_optAddRoot = true;</code>
* xml2array() result is array('root' => array('tag' => 'some value'));
*
* if
* <code>$_optAddRoot = false;</code>
* xml2array() result is array('tag' => 'some value');
*
* @see xml2array()
* @see setOptAddRoot()
* @var boolean
*/
protected $_optAddRoot = false;
/**
* Always return array, even for single first level tag => value pair
* Exmple:
* <code>
* <root>
* <tag>some value</tag>
* </root>
* </code>
*
* if
* <code>$_optForceArray = true;</code>
* xml2array() result is array('tag' => array('value' => 'some value'));
* where 'value' is the value of $_optValueKey
*
* If
* <code>$_optForceArray = false;</code>
* xml2array() result is array('tag' => 'some value');
*
* @see xml2array()
* @see setOptForceArray()
* @var boolean
*/
protected $_optForceArray = false;
/**
* Key name for simple tag => value pairs
*
* @see xml2array()
* @see setOptValueKey()
* @var string
*/
protected $_optValueKey = '@value';
protected $_feedUrl = FALSE;
/**
* Constructor - set defaults
*
*//*
function __construct()
{
$this->reset();
if(count($this->filePathConversions))
{
$this->filePathConvKeys = array_keys($this->filePathConversions);
}
}*/
/**
* Reset object
*
* @param boolean $xml_contents [optional]
* @return xmlClass
*/
function reset($xml_contents = true)
{
if($xml_contents)
{
$this->xmlFileContents = '';
}
$this->filter = false;
$this->stripComments = true;
$this->_optAddRoot = false;
$this->_optValueKey = '@value';
$this->_optForceArray = false;
return $this;
}
/**
* Set addRoot option
*
* @param boolean $flag
* @return xmlClass
*/
public function setOptAddRoot($flag)
{
$this->_optAddRoot = (boolean) $flag;
return $this;
}
/**
* Set Xml tags that should always return arrays.
*
* @param string $string (comma separated)
* @return xmlClass
*/
public function setOptArrayTags($string)
{
$this->arrayTags = (array) explode(",", $string);
return $this;
}
/**
* @param $string
* @return $this
*/
public function setOptStringTags($string)
{
$this->stringTags = (array) explode(",", $string);
return $this;
}
/**
* Set forceArray option
*
* @param boolean $flag
* @return xmlClass
*/
public function setOptForceArray($flag)
{
$this->_optForceArray = (boolean) $flag;
return $this;
}
/**
* Set valueKey option
*
* @param string $str
* @return xmlClass
*/
public function setOptValueKey($str)
{
$this->_optValueKey = trim((string) $str);
return $this;
}
/**
* Set strpComments option
*
* @param boolean $flag
* @return xmlClass
*/
public function setOptStripComments($flag)
{
$this->stripComments = (boolean) $flag;
return $this;
}
/**
* Set strpComments option
*
* @param array $filter
* @return xmlClass
*/
public function setOptFilter($filter)
{
$this->filter = (array) $filter;
return $this;
}
/**
* Set urlPrefix
*
* @param string $url
* @return xmlClass
*/
public function setUrlPrefix($url)
{
$this->urlPrefix = $url;
return $this;
}
/**
* @param $feed
* @return $this
*/
public function setFeedUrl($feed)
{
if($feed)
{
$this->_feedUrl = $feed;
}
return $this;
}
/**
* Get Remote XML file contents
* use setOptArrayTags above if you require a consistent array result by in 1 item or many.
* @param string $address
* @param integer $timeout [optional] seconds
* @return string
*/
function getRemoteFile($address, $timeout = 10, $postData=null)
{
$_file = e107::getFile();
$this->xmlFileContents = $_file->getRemoteContent($address, array('timeout' => $timeout, 'post' => $postData));
$this->errors = $_file->getErrorMessage();
return $this->xmlFileContents;
}
/**
* Parse $xmlFileContents XML string to array
*
* @param string $xmlData [optional]
* @param boolean $simple [optional] false - use xml2array(), true - use xml_convert_to_array()
* @return array|string
*/
function parseXml($xmlData = '', $simple = true)
{
if ($xmlData)
{
$this->xmlFileContents = $xmlData;
}
elseif ($this->xmlFileContents)
{
$xmlData = $this->xmlFileContents;
}
if (!$xmlData)
{
return FALSE;
}
$extendedTypes = array(
'content:encoded' => 'content_encoded',
'<media:' => '<media_',
'</media:' => '</media_',
'<opensearch:' => '<opensearch_',
'</opensearch:' => '</opensearch_'
);
$xmlData = str_replace(array_keys($extendedTypes), array_values($extendedTypes), $xmlData);
if(strpos($xmlData,'<html lang=')!==false)
{
$this->errors = "HTML cannot be parsed as XML";
return false;
}
if(!$xml = simplexml_load_string($xmlData, 'SimpleXMLElement', LIBXML_NOCDATA))
{
$this->errors = $this->getErrors($xmlData);
return FALSE;
}
$xml = $simple ? $this->xml_convert_to_array($xml, $this->filter, $this->stripComments) : $this->xml2array($xml);
return $xml;
}
/**
* Advanced XML parser - handles tags with attributes and values
* properly.
* TODO - filter (see xml_convert_to_array)
* FIXME can't handle multi-dimensional associative arrays (e.g. <screnshots><image>...</image><image>...</image></screenshots> to screenshots[image] = array(...))
* XXX New parser in testing phase - see e_marketplace::parse()
* @param SimpleXMLElement $xml
* @param string $rec_parent used for recursive calls only
* @return array|string
*/
function xml2array($xml, $rec_parent = '')
{
$ret = array();
$tags = (array) $xml;
//remove comments
if($this->stripComments && isset($tags['comment']))
{
unset($tags['comment']);
}
//first call
if(!$rec_parent)
{
//$ret = $this->xml2array($xml, true);
//repeating code because of the _optForceArray functionality
if(!is_object($xml))
{
return array();
}
$tags = array_keys($tags);
foreach ($tags as $tag)
{
if($tag === '@attributes')
{
$tmp = (array) $xml->attributes();
$ret['@attributes'] = $tmp['@attributes'];
continue;
}
$count = count($xml->{$tag});
if($count > 1)
{
for ($i = 0; $i < $count; $i++)
{
$ret[$tag][$i] = $this->xml2array($xml->{$tag}[$i], $tag);
}
continue;
}
$ret[$tag] = $this->xml2array($xml->{$tag}, $tag);
}
$ret = $this->parseArrayTags($ret);
$ret = $this->parseStringTags($ret);
return ($this->_optAddRoot ? array($xml->getName() => $ret) : $ret);
}
//Recursive calls start here
if(self::is_assoc($tags))
{
$tags = array_keys($tags);
$count_tags = count($tags);
//loop through tags
foreach ($tags as $tag)
{
if(is_int($tag)) continue;
switch($tag)
{
case '@attributes':
$tmp = (array) $xml->attributes();
$ret['@attributes'] = $tmp['@attributes'];
if($count_tags == 1 || ['@attributes', 0] === $tags) //only attributes & possible value
{
$ret[$this->_optValueKey] = trim((string) $xml);
//return $ret;
}
break;
case 'comment':
$ret[$this->_optValueKey] = trim((string) $xml);
$ret['comment'] = $xml->comment;
break;
//more cases?
default:
//FIXME - commented code breaks parsing of plugin.xml extended and userclass tags and possibly other xml files.
/*
// fix - empty SimpleXMLElement
if(empty($xml->{$tag}))
{
if($this->arrayTags && in_array($tag, $this->arrayTags))
{
$ret[$tag] = array();
}
else $ret[$tag] = '';
break;
}
*/
$count = count($xml->{$tag});
if($count >= 1) //array of elements - loop
{
for ($i = 0; $i < $count; $i++)
{
$ret[$tag][$i] = $this->xml2array($xml->{$tag}[$i], $tag);
$ret[$tag][$i] = $this->parseStringTags($ret[$tag][$i]);
}
}
else //single element
{
$ret[$tag] = $this->xml2array($xml->{$tag}, $tag);
$ret[$tag] = $this->parseStringTags($ret[$tag]);
}
break;
}
}
$ret = $this->parseStringTags($ret);
return $ret;
}
//parse value only
$ret = trim((string) $xml);
return ($this->_optForceArray ? array($this->_optValueKey => $ret) : $ret);
}
// OLD
/**
* @param $xml
* @param $localFilter
* @param $stripComments
* @return array
*/
function xml_convert_to_array($xml, $localFilter = FALSE, $stripComments = TRUE)
{
if (is_object($xml))
{
$xml = (array) $xml;
}
if (is_array($xml))
{
foreach ($xml as $k=>$v)
{
if ($stripComments && ($k === 'comment'))
{
unset($xml[$k]);
continue;
}
$enabled = FALSE;
if ($localFilter === FALSE)
{
$enabled = TRUE;
$onFilter = FALSE;
}
elseif (isset($localFilter[$k]))
{
$enabled = TRUE;
$onFilter = $localFilter[$k];
}
if ($enabled)
{
if (is_object($v))
{
$v = (array) $v;
}
$xml[$k] = $this->xml_convert_to_array($v, $onFilter, $stripComments);
}
else
{
unset($xml[$k]);
}
}
if (count($xml) == 1 && isset($xml[0]))
{
$xml = $xml[0];
}
}
$xml = $this->parseArrayTags($xml);
// $xml = $this->parseStringTags($xml);
return $xml;
}
/**
* Convert Array(0) to String based on specified Tags.
*
* @param array|string $vars
* @return string
*/
function parseStringTags($vars)
{
if(!$this->stringTags || !is_array($vars))
{
return $vars;
}
foreach($this->stringTags as $vl)
{
if(isset($vars[$vl]) && is_array($vars[$vl]) && isset($vars[$vl][0]))
{
$vars[$vl] = $vars[$vl][0];
}
}
return $vars;
}
/**
* Return as an array, even when a single xml tag value is found
* Use setArrayTags() to set which tags are affected.
*
* @param array $vars
* @return array
*/
private function parseArrayTags($vars)
{
if(!$this->arrayTags)
{
return $vars;
}
foreach($this->arrayTags as $p)
{
if(strpos($p,"/")!==false)
{
list($vl,$sub) = explode("/",$p);
}
else
{
$vl = $p;
$sub = false;
}
if($sub)
{
if(isset($vars[$vl][$sub]) && is_string($vars[$vl][$sub]))
{
$vars[$vl][$sub] = array($vars[$vl][$sub]);
}
continue;
}
if(isset($vars[$vl]) && is_array($vars[$vl]) && !varset($vars[$vl][0]))
{
$vars[$vl] = array($vars[$vl]);
}
}
return $vars;
}
/**
* Determine if the provided variable is an associative array
*
* This method is necessary because since PHP 7.2, get_object_vars() on
* a SimpleXMLElement object began returning sequential arrays, and
* xmlClass::xml2array() interpreted the sequence as XML tags.
*
* See https://github.com/e107inc/e107/issues/3018 for details.
*
* @param array $array The variable to check
* @return boolean true if the provided variable is an associative array,
* false if it's a sequential array or anything else
*/
private static function is_assoc($array)
{
if (!is_array($array) || array() === $array) return false;
return array_keys($array) !== range(0, count($array) - 1);
}
/**
* Load XML file and parse it (optional)
*
* @param string $fname local or remote XML source file path
* @param boolean|string $parse false - no parse;
* true - use xml_convert_to_array();
* in any other case - use xml2array()
*
* @param boolean $replace_constants [optional]
* @return false|string
*/
function loadXMLfile($fname, $parse = false, $replace_constants = false)
{
$tp = e107::getParser();
if($this->_feedUrl !== false)
{
$fname = $this->_feedUrl;
}
if (empty($fname))
{
return false;
}
$xml = false;
if (strpos($fname, '://') !== false)
{
$this->getRemoteFile($fname);
$this->_feedUrl = false; // clear it to avoid conflicts.
}
else
{
if ($xml = file_get_contents($fname))
{
$this->xmlFileContents = $xml;
}
}
if ($this->xmlFileContents)
{
if ($replace_constants == true)
{
$this->xmlFileContents = $tp->replaceConstants($this->xmlFileContents, '', true);
}
if ($parse)
{
return $this->parseXml('', ($parse === true));
}
else
{
return $this->xmlFileContents;
}
}
return false;
}
/**
* Convert file path for inclusion in XML file.
* @see e107ExportValue()
* @param string $text - callback function
* @return string converted file path
*/
private function replaceFilePaths($text)
{
$fullpath = e107::getParser()->replaceConstants($text[1]);
$this->fileConvertLog[] = $fullpath;
$file = basename($fullpath);
return $this->filePathDestination.$file;
}
/**
* Process data values for XML file. If $this->convertFilePaths is TRUE, convert paths
*
* @see replaceFilePaths()
* @param mixed $val
* @param string $key key for the current value. Used for exception processing.
* @return mixed
*/
public function e107ExportValue($val, $key = '')
{
if($key && isset($this->filePathPrepend[$key]))
{
$val = $this->filePathPrepend[$key].$val;
}
if(is_array($val))
{
$val = e107::serialize($val);
if($val === null)
{
return '<![CDATA[array ()]]>';
}
}
if($this->convertFilePaths)
{
$types = implode("|",$this->convertFileTypes);
$val = preg_replace_callback("#({e_.*?\.(".$types."))#i", array($this,'replaceFilePaths'), $val);
}
if((strpos($val,"<")!==FALSE) || (strpos($val,">")!==FALSE) || (strpos($val,"&")!==FALSE))
{
return "<![CDATA[". $val."]]>";
}
$val = str_replace(chr(1),'{\u0001}',$val);
return $val;
}
/**
* Create an e107 Export File in XML format
* Note: If $this->filePathDestination has a value, then the file will be saved there.
*
* @param array $xmlprefs - see e_core_pref $aliases (eg. core, ipool etc)
* @param array $tables - table names without the prefix
* @param array|null $plugPrefs
* @param array|null $themePrefs
* @param array $options [optional] debug, return, query
* @return string text / file for download
*/
public function e107Export($xmlprefs, $tables, $plugPrefs=null, $themePrefs=null, $options = array())
{
// error_reporting(0);
// $e107info = array();
// require_once(e_ADMIN."ver.php");
$text = "<?xml version='1.0' encoding='utf-8' ?".">\n";
$text .= "<e107Export version=\"".e_VERSION."\" timestamp=\"".time()."\" >\n";
$default = array();
$excludes = array();
if($this->modifiedPrefsOnly == true)
{
$xmlArray = e107::getSingleton('xmlClass')->loadXMLfile(e_CORE."xml/default_install.xml",'advanced');
$default = e107::getSingleton('xmlClass')->e107ImportPrefs($xmlArray,'core');
$excludes = array('social_login','replyto_email','replyto_name','siteadminemail','lan_global_list','menuconfig_list','plug_installed','shortcode_legacy_list','siteurl','cookie_name','install_date', 'wysiwyg');
}
if(varset($xmlprefs)) // Export Core Preferences.
{
$text .= "\t<prefs>\n";
foreach($xmlprefs as $type)
{
$theprefs = e107::getConfig($type)->getPref();
ksort($theprefs);
foreach($theprefs as $key=>$val)
{
if($type === 'core' && $this->modifiedPrefsOnly == true && (($val == $default[$key]) || in_array($key,$excludes) || strpos($key, 'e_') === 0))
{
continue;
}
elseif(!empty($options['debug']))
{
echo "<div>Original/Modiied <b>".$key."</b>";
var_dump($default[$key],$val);
echo "</div>";
}
if(isset($val))
{
$text .= "\t\t<".$type." name=\"".$key."\">".$this->e107ExportValue($val)."</".$type.">\n";
}
}
}
$text .= "\t</prefs>\n";
}