data_transfer: do not emit finished if not finished

Change-Id: I5e2231c4550d27a6b4ad8ae8b728227e12496dc1
GitLab: #323

src/data_transfer.cpp

@@ -345,6 +345,9 @@ private:
             JAMI_DBG() << "FTP#" << getId() << ": sent " << info_.bytesProgress << " bytes";
             if (internalCompletionCb_)
                 internalCompletionCb_(info_.path);
+            if (info_.bytesProgress != info_.totalSize)
+                emit(DRing::DataTransferEventCode::closed_by_peer);
+            else
                 emit(DRing::DataTransferEventCode::finished);
         });
     }