PDFOffice_Windows_exe/PDF Office/Helper/SecurityHelper.cs

using ComPDFKit.PDFDocument;
using PDF_Office.Model;
using Prism.Services.Dialogs;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static PDF_Office.Model.Dialog.ToolsDialogs.SaftyDialogs.DeleteSafetySettintgsModel;

namespace PDF_Office.Helper
{
    public  class SecurityHelper
    {
        public static bool CheckHaveAllPermissions(CPDFDocument document)
        {
            CPDFPermissionsInfo permissionsInfo = document.GetPermissionsInfo();
            if (permissionsInfo.AllowsDocumentChanges &&
                permissionsInfo.AllowsPrinting &&
                permissionsInfo.AllowsHighQualityPrinting &&
                permissionsInfo.AllowsCopying &&
                permissionsInfo.AllowsDocumentAssembly &&
                permissionsInfo.AllowsFormFieldEntry &&
                permissionsInfo.AllowsCommenting)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        public static bool VerifyPassword(CPDFDocument document ,EnumPasswordKind enumPasswordKind, IDialogService dialogService)
        {
            if (enumPasswordKind == EnumPasswordKind.StatusOpenPassword)
            {
                if (!document.IsLocked)
                {
                    return true;
                }
            }
            else if(enumPasswordKind == EnumPasswordKind.StatusPermissionsPassword)
            {
                if (!document.IsLocked)
                {
                    if (CheckHaveAllPermissions(document))
                    {
                        return true;
                    }
                }
            }
            string password = "";
            DialogParameters value = new DialogParameters();
            value.Add(ParameterNames.PasswordKind, EnumPasswordKind.StatusPermissionsPassword);
            value.Add(ParameterNames.PDFDocument, document);
            bool isDiscryptied = false;
            dialogService.ShowDialog(DialogNames.CheckPasswordDialog, value, e => { 
                isDiscryptied = e.Parameters.GetValue<bool>(ParameterNames.PasswordResult);
                password = e.Parameters.GetValue<string>(ParameterNames.Password);
            });
            return isDiscryptied;
        }
    }
}