class.ilAdvancedMDPermissionHelper.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once "Services/Component/classes/class.ilClaimingPermissionHelper.php";

class ilAdvancedMDPermissionHelper extends ilClaimingPermissionHelper
{
    const CONTEXT_MD = 1;
    const CONTEXT_RECORD = 2;
    const CONTEXT_FIELD = 3;
    const CONTEXT_SUBSTITUTION = 4;
    const CONTEXT_SUBSTITUTION_COURSE = 5;
    const CONTEXT_SUBSTITUTION_CATEGORY = 6;
    const CONTEXT_SUBSTITUTION_SESSION = 7;
    const CONTEXT_SUBSTITUTION_IASS = 8;
    const CONTEXT_SUBSTITUTION_GROUP = 9;
    const CONTEXT_SUBSTITUTION_EXERCISE = 10;

    
    const ACTION_MD_CREATE_RECORD = 1;
    const ACTION_MD_IMPORT_RECORDS = 2;
    
    const ACTION_RECORD_EDIT = 5;
    const ACTION_RECORD_DELETE = 6;
    const ACTION_RECORD_EXPORT = 7;
    const ACTION_RECORD_TOGGLE_ACTIVATION = 8;
    const ACTION_RECORD_EDIT_PROPERTY = 9;
    const ACTION_RECORD_EDIT_FIELDS = 10;
    const ACTION_RECORD_CREATE_FIELD = 11;
    const ACTION_RECORD_FIELD_POSITIONS = 12;
    
    const ACTION_FIELD_EDIT = 13;
    const ACTION_FIELD_DELETE = 14;
    const ACTION_FIELD_EDIT_PROPERTY = 15;
    
    const ACTION_SUBSTITUTION_SHOW_DESCRIPTION = 16;
    const ACTION_SUBSTITUTION_SHOW_FIELDNAMES = 17;
    const ACTION_SUBSTITUTION_FIELD_POSITIONS = 18;
    
    const ACTION_SUBSTITUTION_COURSE_SHOW_FIELD = 19;
    const ACTION_SUBSTITUTION_COURSE_EDIT_FIELD_PROPERTY = 20;
    
    const ACTION_SUBSTITUTION_CATEGORY_SHOW_FIELD = 21;
    const ACTION_SUBSTITUTION_CATEGORY_EDIT_FIELD_PROPERTY = 22;
    
    const ACTION_SUBSTITUTION_SESSION_SHOW_FIELD = 23;
    const ACTION_SUBSTITUTION_SESSION_EDIT_FIELD_PROPERTY = 24;

    const ACTION_SUBSTITUTION_GROUP_SHOW_FIELD = 25;
    const ACTION_SUBSTITUTION_GROUP_EDIT_FIELD_PROPERTY = 26;

    const ACTION_SUBSTITUTION_IASS_SHOW_FIELD = 27;
    const ACTION_SUBSTITUTION_IASS_EDIT_FIELD_PROPERTY = 28;

    const ACTION_SUBSTITUTION_EXERCISE_SHOW_FIELD = 29;
    const ACTION_SUBSTITUTION_EXERCISE_EDIT_FIELD_PROPERTY = 30;

    const SUBACTION_RECORD_TITLE = 1;
    const SUBACTION_RECORD_DESCRIPTION = 2;
    const SUBACTION_RECORD_OBJECT_TYPES = 3;
    
    const SUBACTION_FIELD_TITLE = 4;
    const SUBACTION_FIELD_DESCRIPTION = 5;
    const SUBACTION_FIELD_SEARCHABLE = 6;
    const SUBACTION_FIELD_PROPERTIES = 7;
        
    const SUBACTION_SUBSTITUTION_BOLD = 8;
    const SUBACTION_SUBSTITUTION_NEWLINE = 9;
    
        
    
    // caching
        
    protected function readContextIds($a_context_type)
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        switch ($a_context_type) {
            case self::CONTEXT_MD:
                return array($_REQUEST["ref_id"]);
            
            case self::CONTEXT_RECORD:
                $set = $ilDB->query("SELECT record_id id" .
                    " FROM adv_md_record");
                break;
                        
            case self::CONTEXT_FIELD:
            case self::CONTEXT_SUBSTITUTION_COURSE:
            case self::CONTEXT_SUBSTITUTION_GROUP:
            case self::CONTEXT_SUBSTITUTION_SESSION:
            case self::CONTEXT_SUBSTITUTION_CATEGORY:
            case self::CONTEXT_SUBSTITUTION_IASS:
            case self::CONTEXT_SUBSTITUTION_EXERCISE:
                $set = $ilDB->query("SELECT field_id id" .
                    " FROM adv_mdf_definition");
                break;
            
            case self::CONTEXT_SUBSTITUTION:
                return $this->getAllowedObjectTypes();
                                        
            default:
                return array();
        }
        
        $res = array();
        while ($row = $ilDB->fetchAssoc($set)) {
            $res[] = $row["id"];
        }
        return $res;
    }
    
    
    // permissions
    
    protected function buildPermissionMap()
    {
        return array(
            self::CONTEXT_MD => array(
                "actions" => array(
                    self::ACTION_MD_CREATE_RECORD
                    ,self::ACTION_MD_IMPORT_RECORDS
                )
            ),
            self::CONTEXT_RECORD => array(
                "actions" => array(
                    self::ACTION_RECORD_EDIT
                    ,self::ACTION_RECORD_DELETE
                    ,self::ACTION_RECORD_EXPORT
                    ,self::ACTION_RECORD_TOGGLE_ACTIVATION
                    ,self::ACTION_RECORD_EDIT_FIELDS
                    ,self::ACTION_RECORD_FIELD_POSITIONS
                    ,self::ACTION_RECORD_CREATE_FIELD
                ),
                "subactions" => array(
                    self::ACTION_RECORD_EDIT_PROPERTY =>
                        array(
                            self::SUBACTION_RECORD_TITLE
                            ,self::SUBACTION_RECORD_DESCRIPTION
                            ,self::SUBACTION_RECORD_OBJECT_TYPES
                        )
                )
            ),
            self::CONTEXT_FIELD => array(
                "actions" => array(
                    self::ACTION_FIELD_EDIT,
                    self::ACTION_FIELD_DELETE
                ),
                "subactions" => array(
                    self::ACTION_FIELD_EDIT_PROPERTY =>
                        array(
                            self::SUBACTION_FIELD_TITLE
                            ,self::SUBACTION_FIELD_DESCRIPTION
                            ,self::SUBACTION_FIELD_SEARCHABLE
                            ,self::SUBACTION_FIELD_PROPERTIES
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_SHOW_DESCRIPTION
                    ,self::ACTION_SUBSTITUTION_SHOW_FIELDNAMES
                    ,self::ACTION_SUBSTITUTION_FIELD_POSITIONS
                )
            ),
            self::CONTEXT_SUBSTITUTION_COURSE => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_COURSE_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_COURSE_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                            ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION_CATEGORY => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_CATEGORY_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_CATEGORY_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                            ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION_SESSION => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_SESSION_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_SESSION_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                        ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION_GROUP => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_GROUP_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_GROUP_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                        ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION_IASS => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_IASS_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_IASS_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                        ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            ),
            self::CONTEXT_SUBSTITUTION_EXERCISE => array(
                "actions" => array(
                    self::ACTION_SUBSTITUTION_EXERCISE_SHOW_FIELD
                ),
                "subactions" => array(
                    self::ACTION_SUBSTITUTION_EXERCISE_EDIT_FIELD_PROPERTY =>
                        array(
                            self::SUBACTION_SUBSTITUTION_BOLD
                        ,self::SUBACTION_SUBSTITUTION_NEWLINE
                        )
                )
            )
        );
    }
    
    
    // plugins
    
    protected function getActivePlugins()
    {
        global $DIC;

        $ilPluginAdmin = $DIC['ilPluginAdmin'];
        
        $res = array();
        
        foreach ($ilPluginAdmin->getActivePluginsForSlot(IL_COMP_SERVICE, "AdvancedMetaData", "amdc") as $plugin_name) {
            $res[] = $ilPluginAdmin->getPluginObject(
                IL_COMP_SERVICE,
                "AdvancedMetaData",
                "amdc",
                $plugin_name
             );
        }
        
        return $res;
    }
    
    protected function checkPermission($a_context_type, $a_context_id, $a_action_id, $a_action_sub_id = null)
    {
        global $DIC;

        $ilAccess = $DIC['ilAccess'];
        
        if (!$this->checkPlugins($a_context_type, $a_context_id, $a_action_id, $a_action_sub_id)) {
            return false;
        }
        
        // export is considered read-action
        if ($a_context_type == ilAdvancedMDPermissionHelper::CONTEXT_RECORD &&
            $a_action_id == ilAdvancedMDPermissionHelper::ACTION_RECORD_EXPORT) {
            return $ilAccess->checkAccessOfUser($this->getUserId(), "read", "", $this->getRefId());
        }
        
        return $this->checkRBAC();
    }
}