authorization.php

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		if ($this->_checkMode === 1) {
			return parent::acl_check( $aco_section_value, $aco_value, $aro_section_value, $aro_value, $axo_section_value, $axo_value, $root_aro_group, $root_axo_group );
		}

		$this->debug_text( "\n<br /> ACO=$aco_section_value:$aco_value, ARO=$aro_section_value:$aro_value, AXO=$axo_section_value|$axo_value" );

		$acl_result = 0;
		for ($i=0; $i < $this->acl_count; $i++)
		{
			$acl =& $this->acl[$i];
			if (strcasecmp( $aco_section_value, $acl[0] ) == 0) {
				if (strcasecmp( $aco_value, $acl[1] ) == 0) {
					if (strcasecmp( $aro_section_value, $acl[2] ) == 0) {
						if (strcasecmp( $aro_value, $acl[3] ) == 0) {
							if ($axo_section_value && $acl[4]) {
								if (strcasecmp( $axo_section_value, $acl[4] ) == 0) {
									if (strcasecmp( $axo_value, $acl[5] ) == 0) {
										$acl_result = @$acl[6] ? $acl[6] : 1;
										break;
									}
								}
							} else {
								$acl_result = @$acl[6] ? $acl[6] : 1;
								break;
							}
						}
					}
				}
			}
		}
		return $acl_result;
	}

	/**
	 * Gets the 'name' of a group
	 * @param int The group id
	 * @param string The type: [ARO]|AXO
	 * @return string
	 */
	function get_group_name($group_id = null, $group_type = 'ARO')
	{
		$data = $this->get_group_data( $group_id, 'ARO' );
		return $data[3];
	}

	/**
	 * @param string The value for the group
	 * @return object The row from the group table
	 */
	function getAroGroup( $value ) {
		return $this->_getGroup( 'aro', $value );
	}

	function _getGroup( $type, $value )
	{
		$db =& JFactory::getDBO();

		$db->setQuery( 'SELECT g.*'
			. ' FROM #__core_acl_'.$type.'_groups AS g'
			. ' INNER JOIN #__core_acl_groups_'.$type.'_map AS gm ON gm.group_id = g.id'
			. ' INNER JOIN #__core_acl_'.$type.' AS ao ON ao.id = gm.'.$type.'_id'
			. ' WHERE ao.value='.$db->Quote($value)
			. ' ORDER BY g.id'
		);
		$obj = $db->loadObject();
		return $obj;
	}

	function _getBelow( $table, $fields, $groupby=null, $root_id=null, $root_name=null, $inclusive=true )
	{
		$db =& JFactory::getDBO();

		$root = new stdClass();
		$root->lft = 0;
		$root->rgt = 0;

		if ($root_id) {
		} else if ($root_name) {
			$query	= "SELECT lft, rgt FROM $table WHERE name = ".$db->Quote($root_name);
			$db->setQuery( $query );
			$root = $db->loadObject();
		}

		$where = '';
		if ($root->lft+$root->rgt <> 0) {
			if ($inclusive) {
				$where = ' WHERE g1.lft BETWEEN '.(int) $root->lft.' AND '.(int) $root->rgt;
			} else {
				$where = ' WHERE g1.lft > '.(int) $root->lft.' AND g1.lft <'.(int) $root->rgt;
			}
		}

		$query	= 'SELECT '. $fields
				. ' FROM '. $table .' AS g1'
				. ' INNER JOIN '. $table .' AS g2 ON g1.lft BETWEEN g2.lft AND g2.rgt'
				. $where
				. ($groupby ? ' GROUP BY ' . $groupby : '')
				. ' ORDER BY g1.lft';
		$db->setQuery( $query );

		return $db->loadObjectList();
	}

	/**
	 * @param int
	 * @param string
	 * @param boolean
	 * @param boolean Returns the complete html if true
	 * @return string|array String if html, otherwise an array
	 */
	function get_group_children_tree( $root_id=null, $root_name=null, $inclusive=true, $html=true )
	{
		$db =& JFactory::getDBO();

		$tree = $this->_getBelow( '#__core_acl_aro_groups',
			'g1.id, g1.name, COUNT(g2.name) AS level',
			'g1.name',
			$root_id, $root_name, $inclusive );

		// first pass get level limits
		$n = count( $tree );
		$min = $tree[0]->level;
		$max = $tree[0]->level;
		for ($i=0; $i < $n; $i++) {
			$min = min( $min, $tree[$i]->level );
			$max = max( $max, $tree[$i]->level );
		}

		$indents = array();
		foreach (range( $min, $max ) as $i) {
			$indents[$i] = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;';
		}
		// correction for first indent
		$indents[$min] = '';

		$list = array();
		for ($i=$n-1; $i >= 0; $i--) {
			$shim = '';
			foreach (range( $min, $tree[$i]->level ) as $j) {
				$shim .= $indents[$j];
			}

			if (@$indents[$tree[$i]->level+1] == '.&nbsp;') {
				$twist = '&nbsp;';
			} else {
				$twist = "-&nbsp;";
			}
			$groupName = JText::_( $tree[$i]->name );
			//$list[$i] = $tree[$i]->level.$shim.$twist.$tree[$i]->name;
			if ($html) {
				$list[$i] = JHTML::_('select.option',  $tree[$i]->id, $shim.$twist.$groupName );
			} else {
				$list[$i] = array( 'value'=>$tree[$i]->id, 'text'=>$shim.$twist.$groupName );
			}
			if ($tree[$i]->level < @$tree[$i-1]->level) {
				$indents[$tree[$i]->level+1] = '.&nbsp;';
			}
		}

		ksort($list);
		return $list;
	}

	/*======================================================================*\
		Function:	has_group_parent
		Purpose:	Checks whether the 'source' group is a child of the 'target'
	\*======================================================================*/
	function is_group_child_of( $grp_src, $grp_tgt, $group_type='ARO' )
	{
		$db =& JFactory::getDBO();

		$this->debug_text("has_group_parent(): Source=$grp_src, Target=$grp_tgt, Type=$group_type");

		switch(strtolower(trim($group_type))) {
			case 'axo':
				$table = $this->_db_table_prefix .'axo_groups';
				break;
			default:
				$table = $this->_db_table_prefix .'aro_groups';
				break;
		}

		$query = 'SELECT COUNT(*) '.
				 'FROM '.$table.' AS g1 '.
				 'LEFT JOIN '.$table.' AS g2 ON (g1.lft > g2.lft AND g1.lft < g2.rgt) ';

		if (is_int( $grp_src ) && is_int($grp_tgt)) {
			$query .= 'WHERE g1.id = '.$grp_src.' AND g2.id = '.$grp_tgt;
		} else if (is_string( $grp_src ) && is_string($grp_tgt)) {
			$query .= 'WHERE g1.name = '.$db->Quote($grp_src).' AND g2.name = '.$db->Quote($grp_tgt);
		} else if (is_int( $grp_src ) && is_string($grp_tgt)) {
			$query .= 'WHERE g1.id = '.$grp_src.' AND g2.name = '.$db->Quote($grp_tgt);
		} else {
			$query .= 'WHERE g1.name = '.$db->Quote($grp_src).' AND g2.id = '.(int) $grp_tgt;
		}

		$db->setQuery($query);

		return $db->loadResult();
	}

	/*======================================================================*\
		Function:	get_group_children()
		Purpose:	Gets a groups child IDs
	\*======================================================================*/
	function get_group_parents($group_id, $group_type = 'ARO', $recurse = 'NO_RECURSE')
	{
		$this->debug_text("get_group_parents(): Group_ID: $group_id Group Type: $group_type Recurse: $recurse");

		switch (strtolower(trim($group_type))) {
			case 'axo':
				$group_type = 'axo';
				$table = $this->_db_table_prefix .'axo_groups';
				break;
			default:
				$group_type = 'aro';
				$table = $this->_db_table_prefix .'aro_groups';
		}

		if (empty($group_id)) {
			$this->debug_text("get_group_parents(): ID ($group_id) is empty, this is required");
			return FALSE;
		}

		$query = '
				SELECT		g2.id
				FROM		'. $table .' g1';

		//FIXME-mikeb: Why is group_id in quotes?
		switch (strtoupper($recurse)) {
			case 'RECURSE':
				$query .= '
				LEFT JOIN 	'. $table .' g2 ON g1.lft > g2.lft AND g1.lft < g2.rgt
				WHERE		g1.id='.(int) $group_id;
				break;
			case 'RECURSE_INCL':
				// inclusive resurse
				$query .= '
				LEFT JOIN 	'. $table .' g2 ON g1.lft >= g2.lft AND g1.lft <= g2.rgt
				WHERE		g1.id='.(int) $group_id;
				break;
			default:
				$query .= '
				WHERE		g1.parent_id='.(int) $group_id;
		}

		$query .= '
				ORDER BY	g2.lft';


		$this->db->setQuery( $query );
		return $this->db->loadResultArray();
	}


	/**
	 * Deprecated, use JAuthorisation::addACL() instead.
	 *
	 * @since 1.0
	 * @deprecated As of version 1.5
	 * @see JAuthorisation::addACL()
	 */
	function _mos_add_acl( $aco_section_value, $aco_value, $aro_section_value, $aro_value, $axo_section_value=NULL, $axo_value=NULL, $return_value=NULL ) {
		$this->addACL($aco_section_value, $aco_value, $aro_section_value, $aro_value, $axo_section_value, $axo_value, $return_value);
	}

}