File Manager

<?php
#BEGIN_LICENSE
#-------------------------------------------------------------------------
# Module: CGContentUtils (c) 2009 by Robert Campbell 
#         (calguy1000@cmsmadesimple.org)
#  An addon module for CMS Made Simple to provide various additional utilities
#  for dealing with content pages.
#
#-------------------------------------------------------------------------
# CMS - CMS Made Simple is (c) 2005 by Ted Kulp (wishy@cmsmadesimple.org)
# This project's homepage is: http://www.cmsmadesimple.org
#
#-------------------------------------------------------------------------
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# However, as a special exception to the GPL, this software is distributed
# as an addon module to CMS Made Simple.  You may not use this software
# in any Non GPL version of CMS Made simple, or in any version of CMS
# Made simple that does not indicate clearly and obviously in its admin 
# section that the site was built with CMS Made simple.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Or read it online: http://www.gnu.org/licenses/licenses.html#GPL
#
#-------------------------------------------------------------------------
#END_LICENSE

class cgcu_code_reader
{
  private $_filename;
  private $_error = '';
  private $_data;

  public function __construct($filename)
  {
    if( !file_exists($filename) )
      {
	throw new Exception('File Not Found '.$filename);
      }

    $reader = new XMLReader();
    $tmp = $reader->open($filename);
    if( !$tmp )
      {
	throw new Exception('Unable to open XML File '.$fn);
      }

    $this->_filename = $filename;
    $this->_scan($reader);
  }


  public function get_error()
  {
    return $this->_error;
  }


  public function get_data()
  {
    return $this->_data;
  }


  public function get_record($name)
  {
    if( !is_array($this->_data) || count($this->_data) == 0 ) return;

    for( $i = 0; $i < count($this->_data); $i++ )
      {
	if( $this->_data[$i]['name'] == $name )
	  {
	    return $this->_data[$i];
	  }
      }
  }


  protected function _scan(XMLReader& $reader)
  {
    $have_code_export = 0;
    $cur_element = '';
    $cur_key = '';
    $this->_data = array();
    $cur_data = array();

    while( $reader->read() && $this->_error == '' )
      {
	switch( $reader->nodeType )
	  {
	  case XMLREADER::ELEMENT:
	    {
	      switch( $reader->localName )
		{
		case 'cmsms_code_export':
		  $have_code_export++;
		  break;
	      
		case 'global_content_block':
		case 'userdefined_tag':
		case 'module_template':
		  if( !$have_code_export )
		    {
		      $this->_error = 'error_invalid_format';
		    }
		  else if( $cur_element != '' )
		    {
		      $this->_error = 'error_broken_xml';
		    }
		  else
		    {
		      $cur_element = $reader->localName;
		      $cur_data['type'] = $reader->localName;
		    }
		  break;

		case 'description':
		case 'use_wysiwyg':
		case 'module':
		case 'name':
		case 'template':
		case 'code':
		  $cur_key = $reader->localName;
		  if( !$have_code_export )
		    {
		      $this->_error = 'error_invalid_format';
		    }
		  else if( $cur_element == '' )
		    {
		      $this->_error = 'error_broken_xml';
		    }
		  else
		    {
		      $cur_data[$reader->localName] = $reader->value;
		    }
		  break;
		}
	    }
	    break;

	  case XMLREADER::TEXT:
	    {
	      if( $cur_key != '' )
		{
		  $cur_data[$cur_key] = $reader->value;
		  $cur_key = '';
		}
	    }
	    break;

	  case XMLREADER::CDATA:
	    {
	      if( $cur_key != '' )
		{
		  $cur_data[$cur_key] = $reader->value;
		  $cur_key = '';
		}
	    }
      
	  case XMLREADER::END_ELEMENT:
	    {
	      switch( $reader->localName )
		{
		case 'cmsms_code_export':
		  $have_code_export--;
		  break;
	      
		case 'global_content_block':
		case 'userdefined_tag':
		case 'module_template':
		  if( !$have_code_export )
		    {
		      $this->_error = 'error_invalid_format';
		    }
		  else if( $cur_element != $reader->localName )
		    {
		      $this->_error = 'error_broken_xml';
		    }

		  // make sure we have all the data.
		  if( !$this->_error )
		    {
		      switch( $cur_data['type'] )
			{
			case 'global_content_block':
			  if( !isset($cur_data['name']) || empty($cur_data['name']) ||
			      !isset($cur_data['template']) || empty($cur_data['template']) )
			    {
			      $this->_error = 'error_broken_xml';
			    }
			  break;

			case 'userdefined_tag':
			  if( !isset($cur_data['name']) || empty($cur_data['name']) ||
			      !isset($cur_data['code']) )
			    {
			      $this->_error = 'error_broken_xml';
			    }
			  break;

			case 'module_template':
			  if( !isset($cur_data['module']) || empty($cur_data['module']) ||
			      !isset($cur_data['name']) || empty($cur_data['name']) ||
			      !isset($cur_data['template']) || empty($cur_data['template']) )
			    {
			      $this->_error = 'error_broken_xml';
			    }
			  break;
			}
		    }

		  if( !$this->_error )
		    {
		      // got a complete record.
		      $this->_data[] = $cur_data;
		      $cur_data = array();
		      $cur_key = '';
		      $cur_element = '';
		    }
		  break;
		}
	    }
	    break;
	  }
      } // while
  } // function

} // end of class

#
# EOF
#
?>