move ilias-folder from vendor to lib/classes, fixes #6313tic-6313

1 files changed, 257 insertions, 0 deletions

diff --git a/lib/classes/ilias/class.ilSaxParser.php b/lib/classes/ilias/class.ilSaxParser.php
new file mode 100644
index 0000000..a963f1b
--- /dev/null
+++ b/lib/classes/ilias/class.ilSaxParser.php
@@ -0,0 +1,257 @@
+<?php
+/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+
+/**
+* Base class for sax-based expat parsing
+* extended classes need to overwrite the method setHandlers and implement their own handler methods
+* 
+*
+* @author Stefan Meyer <smeyer@databay>
+* @version $Id$
+*
+* @extends PEAR
+*/
+
+
+class ilSaxParser
+{
+	/**
+	 * XML-Content type 'file' or 'string'
+	 * If you choose file set the filename in constructor
+	 * If you choose 'String' call the constructor with no argument and use setXMLContent()
+	 * @var string
+	 * @access private
+	 */
+	var $input_type = null;
+
+	/**
+	 * XML-Content in case of content type 'string'
+
+	 * @var string 
+	 * @access private
+	 */
+	var $xml_content = '';
+
+	/**
+	 * ilias object
+	 * @var object ilias
+	 * @access private
+	 */
+	var $ilias;
+
+	/**
+	 * language object
+	 * @var object language
+	 * @access private
+	 */
+	var $lng;
+
+	/**
+	 * xml filename
+	 * @var filename
+	 * @access private
+	 */
+	var $xml_file;
+
+	/**
+	 * error handler which handles error messages (used if parsers are called from soap)
+	 *
+	 * @var boolean
+	 */
+	var $throwException = false;
+	/**
+	* Constructor
+	* setup ILIAS global object
+	* @access	public
+	*/
+	function __construct($a_xml_file = '', $throwException = false)
+	{
+		global $ilias, $lng;
+
+		if($a_xml_file)
+		{
+			$this->xml_file = $a_xml_file;
+			$this->input_type = 'file';
+		}
+
+		$this->throwException = $throwException;
+		$this->ilias = &$ilias;
+		$this->lng = &$lng;
+	}
+
+	function setXMLContent($a_xml_content)
+	{
+		$this->xml_content = $a_xml_content;
+		$this->input_type = 'string';
+	}
+	
+	function getXMLContent()
+	{
+		return $this->xml_content;
+	}
+
+	function getInputType()
+	{
+		return $this->input_type;
+	}
+
+	/**
+	* stores xml data in array
+	* 
+	* @access	private
+	* @throws ilSaxParserException or ILIAS Error
+	*/
+	function startParsing()
+	{
+		$xml_parser = $this->createParser();
+		$this->setOptions($xml_parser);
+		$this->setHandlers($xml_parser);
+
+		switch($this->getInputType())
+		{
+			case 'file':
+				$fp = $this->openXMLFile();
+				$this->parse($xml_parser,$fp);
+				break;
+
+			case 'string':
+				$this->parse($xml_parser);
+				break;
+
+			default:
+				$this->handleError("No input type given. Set filename in constructor or choose setXMLContent()",
+										 $this->ilias->error_obj->FATAL);
+				break;
+		}
+		$this->freeParser($xml_parser);
+	}
+	/**
+	* create parser
+	* 
+	* @access	private
+	* @throws ilSaxParserException or ILIAS Error
+	*/
+	function createParser()
+	{
+		$xml_parser = xml_parser_create("UTF-8");
+
+		if($xml_parser == false)
+		{
+			$this->handleError("Cannot create an XML parser handle",$this->ilias->error_obj->FATAL);
+		}
+		return $xml_parser;
+	}
+	/**
+	* set parser options
+	* 
+	* @access	private
+	*/
+	function setOptions($a_xml_parser)
+	{
+		xml_parser_set_option($a_xml_parser,XML_OPTION_CASE_FOLDING,false);
+	}
+	/**
+	* set event handler
+	* should be overwritten by inherited class
+	* @access	private
+	*/
+	function setHandlers($a_xml_parser)
+	{
+		echo 'ilSaxParser::setHandlers() must be overwritten';
+	}
+	/**
+	* open xml file
+	* 
+	* @access	private
+	* @throws ilSaxParserException or ILIAS Error
+	*/
+	function openXMLFile()
+	{
+		if(!($fp = fopen($this->xml_file,'r')))
+		{
+			$this->handleError("Cannot open xml file \"".$this->xml_file."\"",$this->ilias->error_obj->FATAL);
+		}
+		return $fp;
+	}
+	/**
+	* parse xml file
+	* 
+	* @access	private
+	* @throws ilSaxParserException or ILIAS Error
+	*/
+	function parse($a_xml_parser,$a_fp = null)
+	{
+		switch($this->getInputType())
+		{
+			case 'file':
+
+				while($data = fread($a_fp,4096))
+				{
+					$parseOk = xml_parse($a_xml_parser,$data,feof($a_fp));
+				}
+				break;
+				
+			case 'string':
+				$parseOk = xml_parse($a_xml_parser,$this->getXMLContent());
+				break;
+		}
+		if(!$parseOk
+		   && (xml_get_error_code($a_xml_parser) != XML_ERROR_NONE))
+		{
+			$errorCode = xml_get_error_code($a_xml_parser);
+			$line = xml_get_current_line_number($a_xml_parser);
+			$col = xml_get_current_column_number($a_xml_parser);			
+			$this->handleError("XML Parse Error: ".xml_error_string($errorCode)." at line ".$line.", col ". $col . " (Code: ".$errorCode.")" ,$this->ilias->error_obj->FATAL);
+		}
+		return true;
+				
+	}
+	
+	/**
+	 * use given error handler to handle error message or internal ilias error message handle
+	 *
+	 * @param string $message
+	 * @param string $code
+	 * @throws ilSaxParserException or ILIAS Error
+	 */
+	protected function handleError($message, $code) {
+		if ($this->throwException) {
+			require_once ('./Services/Xml/exceptions/class.ilSaxParserException.php');			
+			throw new ilSaxParserException ($message, $code);
+		} else {
+			if (is_object($this->ilias))
+			{
+				$this->ilias->raiseError($message, $code);
+			}
+			else
+			{
+				die($message);
+			}
+		}
+		return false;
+	}
+	/**
+	* free xml parser handle
+	* 
+	* @access	private
+	*/
+	function freeParser($a_xml_parser)
+	{
+		if(!xml_parser_free($a_xml_parser))
+		{
+			$this->ilias->raiseError("Error freeing xml parser handle ",$this->ilias->error_obj->FATAL);
+		}
+	}
+	
+	/**
+	 * set error handling
+	 *
+	 * @param  $error_handler
+	 */
+	public function setThrowException ($throwException) 
+	{
+		$this->throwException = $throwException;
+	}
+}
+?>