CBPVirtualDocument :: CanUserOperateDocumentType: Bitrix method

      
<?php 
//  CBPVirtualDocument :: CanUserOperateDocumentType()
//  /dist/bitrix/modules/bizproc/classes/general/virtualdocument.php:966

    
function CanUserOperateDocumentType($operation$userId$documentType$arParameters = array())
    {
        
$documentType trim($documentType);
        if (
strlen($documentType) <= 0)
            return 
false;

        
$userId intval($userId);

        if (
array_key_exists("UserIsAdmin"$arParameters))
        {
            if (
$arParameters["UserIsAdmin"] === true)
                return 
true;
        }
        else
        {
            
$arGroups CUser::GetUserGroup($userId);
            if (
in_array(1$arGroups))
                return 
true;
        }

        if (!
array_key_exists("AllUserGroups"$arParameters))
        {
            if (!
array_key_exists("UserGroups"$arParameters))
                
$arParameters["UserGroups"] = CUser::GetUserGroup($userId);

            
$arParameters["AllUserGroups"] = $arParameters["UserGroups"];
            
$arParameters["AllUserGroups"][] = "author";
        }

        if (!
array_key_exists("DocumentStates"$arParameters))
        {
            
$arParameters["DocumentStates"] = CBPDocument::GetDocumentStates(
                array(
"bizproc""CBPVirtualDocument"$documentType),
                
null
            
);
        }

        if (
array_key_exists("WorkflowId"$arParameters))
        {
            if (
array_key_exists($arParameters["WorkflowId"], $arParameters["DocumentStates"]))
                
$arParameters["DocumentStates"] = array($arParameters["WorkflowId"] => $arParameters["DocumentStates"][$arParameters["WorkflowId"]]);
            else
                return 
false;
        }

        
$arAllowableOperations CBPDocument::GetAllowableOperations(
            
$userId,
            
$arParameters["AllUserGroups"],
            
$arParameters["DocumentStates"]
        );

        
// $arAllowableOperations == null - workflow is not a statemachine
        // $arAllowableOperations == array() - no allowable operations
        // $arAllowableOperations == array("read", ...) - allowable operations list
        
if (!is_array($arAllowableOperations) && $operation != 4)
            return 
true;

        if (
$operation == 4)
            return 
true;

        
$r false;
        switch (
$operation)
        {
            case 
0:                // DOCUMENT_OPERATION_VIEW_WORKFLOW
                
$r false;
                break;
            case 
1:                // DOCUMENT_OPERATION_START_WORKFLOW
                
$r in_array("create"$arAllowableOperations);
                break;
            case 
4:                // DOCUMENT_OPERATION_CREATE_WORKFLOW
                
$r false;
                break;
            case 
2:                // DOCUMENT_OPERATION_WRITE_DOCUMENT
                
$r in_array("create"$arAllowableOperations);
                break;
            case 
3:                // DOCUMENT_OPERATION_READ_DOCUMENT
                
$r false;
                break;
            default:
                
$r false;
        }

        return 
$r;
    }