public IEnumerable <EncryptionKeyPair> GetKeyPair <T>(T fileId, FileStorageService <T> FileStorageService)
{
var fileDao = DaoFactory.GetFileDao <T>();
fileDao.InvalidateCache(fileId);
var file = fileDao.GetFile(fileId);
if (file == null)
{
throw new System.IO.FileNotFoundException(FilesCommonResource.ErrorMassage_FileNotFound);
}
if (!FileSecurity.CanEdit(file))
{
throw new System.Security.SecurityException(FilesCommonResource.ErrorMassage_SecurityException_EditFile);
}
if (file.RootFolderType != FolderType.Privacy)
{
throw new NotSupportedException();
}
var fileShares = FileStorageService.GetSharedInfo(new List <T> {
fileId
}, new List <T> {
}).ToList();
fileShares = fileShares.Where(share => !share.SubjectGroup &&
!share.SubjectId.Equals(FileConstant.ShareLinkId) &&
share.Share == FileShare.ReadWrite).ToList();
var fileKeysPair = fileShares.Select(share =>
{
var fileKeyPairString = EncryptionLoginProvider.GetKeys(share.SubjectId);
if (string.IsNullOrEmpty(fileKeyPairString))
{
return(null);
}
var options = new JsonSerializerOptions
{
AllowTrailingCommas = true,
PropertyNameCaseInsensitive = true
};
var fileKeyPair = JsonSerializer.Deserialize <EncryptionKeyPair>(fileKeyPairString, options);
if (fileKeyPair.UserId != share.SubjectId)
{
return(null);
}
fileKeyPair.PrivateKeyEnc = null;
return(fileKeyPair);
})
.Where(keyPair => keyPair != null);
return(fileKeysPair);
}
public bool CanSetAccess(FileEntry entry)
{
return
(entry != null &&
(entry.RootFolderType == FolderType.COMMON && Global.IsAdministrator ||
entry.RootFolderType == FolderType.USER &&
(Equals(entry.RootFolderId, GlobalFolderHelper.FolderMy) || FileSecurity.CanEdit(entry)) &&
!UserManager.GetUsers(AuthContext.CurrentAccount.ID).IsVisitor(UserManager)));
}
private bool CanEdit <T>(File <T> file)
{
return(file != null &&
FileSecurity.CanEdit(file) &&
!UserManager.GetUsers(AuthContext.CurrentAccount.ID).IsVisitor(UserManager) &&
!EntryManager.FileLockedForMe(file.ID) &&
!FileTracker.IsEditing(file.ID) &&
file.RootFolderType != FolderType.TRASH &&
!file.Encrypted);
}