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-rw-r--r--comphelper/source/misc/stillreadwriteinteraction.cxx156
1 files changed, 156 insertions, 0 deletions
diff --git a/comphelper/source/misc/stillreadwriteinteraction.cxx b/comphelper/source/misc/stillreadwriteinteraction.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <comphelper/stillreadwriteinteraction.hxx>
+
+#include <com/sun/star/ucb/InteractiveIOException.hpp>
+
+#include <com/sun/star/task/XInteractionAbort.hpp>
+
+#include <com/sun/star/task/XInteractionApprove.hpp>
+
+#include <com/sun/star/ucb/UnsupportedDataSinkException.hpp>
+
+#include <com/sun/star/ucb/AuthenticationRequest.hpp>
+
+#include <com/sun/star/ucb/CertificateValidationRequest.hpp>
+#include <utility>
+
+namespace comphelper{
+
+StillReadWriteInteraction::StillReadWriteInteraction(const css::uno::Reference< css::task::XInteractionHandler >& xHandler,
+ css::uno::Reference< css::task::XInteractionHandler > xAuxiliaryHandler)
+ : m_bUsed (false)
+ , m_bHandledByMySelf (false)
+ , m_xAuxiliaryHandler(std::move(xAuxiliaryHandler))
+{
+ std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest > lInterceptions;
+ lInterceptions.reserve(4);
+ ::ucbhelper::InterceptedInteraction::InterceptedRequest aInterceptedRequest;
+
+ aInterceptedRequest.Handle = HANDLE_INTERACTIVEIOEXCEPTION;
+ aInterceptedRequest.Request <<= css::ucb::InteractiveIOException();
+ aInterceptedRequest.Continuation = cppu::UnoType<css::task::XInteractionAbort>::get();
+ lInterceptions.push_back(aInterceptedRequest);
+
+ aInterceptedRequest.Handle = HANDLE_UNSUPPORTEDDATASINKEXCEPTION;
+ aInterceptedRequest.Request <<= css::ucb::UnsupportedDataSinkException();
+ aInterceptedRequest.Continuation = cppu::UnoType<css::task::XInteractionAbort>::get();
+ lInterceptions.push_back(aInterceptedRequest);
+
+ aInterceptedRequest.Handle = HANDLE_AUTHENTICATIONREQUESTEXCEPTION;
+ aInterceptedRequest.Request <<= css::ucb::AuthenticationRequest();
+ aInterceptedRequest.Continuation = cppu::UnoType<css::task::XInteractionApprove>::get();
+ lInterceptions.push_back(aInterceptedRequest);
+
+ aInterceptedRequest.Handle = HANDLE_CERTIFICATEVALIDATIONREQUESTEXCEPTION;
+ aInterceptedRequest.Request <<= css::ucb::CertificateValidationRequest();
+ aInterceptedRequest.Continuation = cppu::UnoType<css::task::XInteractionApprove>::get();
+ lInterceptions.push_back(aInterceptedRequest);
+
+ setInterceptedHandler(xHandler);
+ setInterceptions(std::move(lInterceptions));
+}
+
+void StillReadWriteInteraction::resetInterceptions()
+{
+ setInterceptions(std::vector< ::ucbhelper::InterceptedInteraction::InterceptedRequest >());
+}
+
+void StillReadWriteInteraction::resetErrorStates()
+{
+ m_bUsed = false;
+ m_bHandledByMySelf = false;
+}
+
+
+ucbhelper::InterceptedInteraction::EInterceptionState StillReadWriteInteraction::intercepted(const ::ucbhelper::InterceptedInteraction::InterceptedRequest& aRequest,
+ const css::uno::Reference< css::task::XInteractionRequest >& xRequest)
+{
+ // we are used!
+ m_bUsed = true;
+
+ // check if it's a real interception - might some parameters are not the right ones ...
+ bool bAbort = false;
+ switch(aRequest.Handle)
+ {
+ case HANDLE_INTERACTIVEIOEXCEPTION:
+ {
+ css::ucb::InteractiveIOException exIO;
+ xRequest->getRequest() >>= exIO;
+ bAbort = (
+ (exIO.Code == css::ucb::IOErrorCode_ACCESS_DENIED )
+ || (exIO.Code == css::ucb::IOErrorCode_LOCKING_VIOLATION )
+ || (exIO.Code == css::ucb::IOErrorCode_NOT_EXISTING )
+ // At least on Linux, a request to open some fuse-mounted file O_RDWR may fail with
+ // EOPNOTSUPP (mapped to osl_File_E_NOSYS to IOErrorCode_NOT_SUPPORTED) when opening
+ // it O_RDONLY would succeed:
+ || (exIO.Code == css::ucb::IOErrorCode_NOT_SUPPORTED )
+#ifdef MACOSX
+ // this is a workaround for MAC, on this platform if the file is locked
+ // the returned error code looks to be wrong
+ || (exIO.Code == css::ucb::IOErrorCode_GENERAL )
+#endif
+ );
+ }
+ break;
+
+ case HANDLE_UNSUPPORTEDDATASINKEXCEPTION:
+ {
+ bAbort = true;
+ }
+ break;
+ case HANDLE_CERTIFICATEVALIDATIONREQUESTEXCEPTION:
+ case HANDLE_AUTHENTICATIONREQUESTEXCEPTION:
+ {
+//use internal auxiliary handler and return
+ if (m_xAuxiliaryHandler.is())
+ {
+ m_xAuxiliaryHandler->handle(xRequest);
+ return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
+ }
+ else //simply abort
+ bAbort = true;
+ }
+ break;
+ }
+
+ // handle interaction by ourself
+ if (bAbort)
+ {
+ m_bHandledByMySelf = true;
+ css::uno::Reference< css::task::XInteractionContinuation > xAbort = ::ucbhelper::InterceptedInteraction::extractContinuation(
+ xRequest->getContinuations(),
+ cppu::UnoType<css::task::XInteractionAbort>::get() );
+ if (!xAbort.is())
+ return ::ucbhelper::InterceptedInteraction::E_NO_CONTINUATION_FOUND;
+ xAbort->select();
+ return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
+ }
+
+ // Otherwise use internal handler.
+ if (m_xInterceptedHandler.is())
+ {
+ m_xInterceptedHandler->handle(xRequest);
+ }
+ return ::ucbhelper::InterceptedInteraction::E_INTERCEPTED;
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */