111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <comphelper/processfactory.hxx>
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#include <sfx2/linkmgr.hxx>
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#include <sfx2/bindings.hxx>
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#include <com/sun/star/ucb/XSimpleFileAccess3.hpp>
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#include <com/sun/star/ucb/SimpleFileAccess.hpp>
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#include <com/sun/star/io/XInputStream.hpp>
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#include <tools/hostfilter.hxx>
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#include <tools/urlobj.hxx>
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#include <utility>
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#include <webservicelink.hxx>
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#include <brdcst.hxx>
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#include <document.hxx>
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#include <sc.hrc>
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ScWebServiceLink::ScWebServiceLink(ScDocument* pD, OUString _aURL)
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: ::sfx2::SvBaseLink(SfxLinkUpdateMode::ALWAYS, SotClipboardFormatId::STRING)
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, pDoc(pD)
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, aURL(std::move(_aURL))
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, bHasResult(false)
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{
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}
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ScWebServiceLink::~ScWebServiceLink() {}
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sfx2::SvBaseLink::UpdateResult ScWebServiceLink::DataChanged(const OUString&, const css::uno::Any&)
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{
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aResult.clear();
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bHasResult = false;
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INetURLObject aURLObject(aURL);
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const OUString sHost = aURLObject.GetHost();
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if (HostFilter::isForbidden(sHost))
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{
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SAL_WARN("sc.ui", "ScWebServiceLink::DataChanged: blocked access to external file: \""
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<< aURL << "\"");
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return ERROR_GENERAL;
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}
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css::uno::Reference<css::ucb::XSimpleFileAccess3> xFileAccess
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= css::ucb::SimpleFileAccess::create(comphelper::getProcessComponentContext());
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if (!xFileAccess.is())
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return ERROR_GENERAL;
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css::uno::Reference<css::io::XInputStream> xStream;
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try
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{
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xStream = xFileAccess->openFileRead(aURL);
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}
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catch (...)
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{
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// don't let any exceptions pass
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return ERROR_GENERAL;
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}
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if (!xStream.is())
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return ERROR_GENERAL;
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const sal_Int32 BUF_LEN = 8000;
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css::uno::Sequence<sal_Int8> buffer(BUF_LEN);
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OStringBuffer aBuffer(64000);
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sal_Int32 nRead = 0;
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while ((nRead = xStream->readBytes(buffer, BUF_LEN)) == BUF_LEN)
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aBuffer.append(reinterpret_cast<const char*>(buffer.getConstArray()), nRead);
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if (nRead > 0)
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aBuffer.append(reinterpret_cast<const char*>(buffer.getConstArray()), nRead);
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xStream->closeInput();
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aResult = OStringToOUString(aBuffer, RTL_TEXTENCODING_UTF8);
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bHasResult = true;
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// Something happened...
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if (HasListeners())
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{
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Broadcast(ScHint(SfxHintId::ScDataChanged, ScAddress()));
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pDoc->TrackFormulas(); // must happen immediately
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pDoc->StartTrackTimer();
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}
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return SUCCESS;
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}
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void ScWebServiceLink::ListenersGone()
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{
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ScDocument* pStackDoc = pDoc; // member pDoc can't be used after removing the link
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sfx2::LinkManager* pLinkMgr = pDoc->GetLinkManager();
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pLinkMgr->Remove(this); // deletes this
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if (pLinkMgr->GetLinks().empty()) // deleted the last one ?
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{
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SfxBindings* pBindings = pStackDoc->GetViewBindings(); // don't use member pDoc!
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if (pBindings)
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pBindings->Invalidate(SID_LINKS);
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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