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author | Michael Stahl <mstahl@redhat.com> | 2016-06-23 11:24:55 +0200 |
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committer | Caolán McNamara <caolanm@redhat.com> | 2016-06-24 15:05:15 +0000 |
commit | f8a132e58e2fa4328e47b19bd49386641d115221 (patch) | |
tree | e6a8ae6875ee03cf1bac36d0879908c933f769ab | |
parent | sw: fix STL asserts in lcl_MoveAllLowerObjs *again* (diff) | |
download | core-f8a132e58e2fa4328e47b19bd49386641d115221.tar.gz core-f8a132e58e2fa4328e47b19bd49386641d115221.zip |
package: fix exception handling in DeflateThread (related tdf#91807)
In the bugdoc of tdf#91807 there are at least 49 corrupt zip streams
that raise exceptions in the DeflateThreads. Because the maximum
allowed number of threads happens to be 48, this results in an infinite
loop in ZipOutputStream::reduceScheduledThreadsToGivenNumberOrLess().
(regression from 7e2ea27e5d56f5cf767a6718a0f5edc28e24af14)
In case an exception is thrown, don't re-throw it immediately, which
might cause trouble such as leaking all of the ZipOutputEntry instances
in m_aEntries.
(cherry picked from commit 8d8b9b80b114b94b20b0bf1438d80e925b49e3bf)
sfx2: exception on storage commit is an error (related: tdf#91807)
For no good or obvious reason, SfxMedium::StorageCommit_Impl() swallows
embed::UseBackupException if there is a pTempFile, which (as the comment
claims) is "always now". This results in the temp file actually being
copied to the user-visible file and the SaveAs "succeeding", when it
clearly did not.
Also move the exception throwing to the end of ZipOutputStream::finish()
to avoid more memory leaks.
(cherry picked from commit 9084c11fb472f2024e609770ce922c911227e7a8)
Change-Id: I448cc43291754ef20adfa6b65916282fcc365a11
Reviewed-on: https://gerrit.libreoffice.org/26619
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
-rw-r--r-- | package/inc/ZipOutputStream.hxx | 1 | ||||
-rw-r--r-- | package/source/zipapi/ZipOutputStream.cxx | 12 | ||||
-rw-r--r-- | package/source/zippackage/ZipPackageStream.cxx | 11 | ||||
-rw-r--r-- | sfx2/source/doc/docfile.cxx | 6 |
4 files changed, 26 insertions, 4 deletions
diff --git a/package/inc/ZipOutputStream.hxx b/package/inc/ZipOutputStream.hxx index 26d7715c05b9..136bc72b249d 100644 --- a/package/inc/ZipOutputStream.hxx +++ b/package/inc/ZipOutputStream.hxx @@ -40,6 +40,7 @@ class ZipOutputStream ZipEntry *m_pCurrentEntry; comphelper::ThreadPool &m_rSharedThreadPool; std::vector< ZipOutputEntry* > m_aEntries; + ::css::uno::Any m_aDeflateException; public: ZipOutputStream( diff --git a/package/source/zipapi/ZipOutputStream.cxx b/package/source/zipapi/ZipOutputStream.cxx index 9213ed7c586b..41f78b414879 100644 --- a/package/source/zipapi/ZipOutputStream.cxx +++ b/package/source/zipapi/ZipOutputStream.cxx @@ -98,7 +98,12 @@ void ZipOutputStream::consumeScheduledThreadEntry(ZipOutputEntry* pCandidate) //Any exceptions thrown in the threads were caught and stored for now ::css::uno::Any aCaughtException(pCandidate->getParallelDeflateException()); if (aCaughtException.hasValue()) - ::cppu::throwException(aCaughtException); + { + m_aDeflateException = aCaughtException; // store it for later throwing + // the exception handler in DeflateThread should have cleaned temp file + delete pCandidate; + return; + } writeLOC(pCandidate->getZipEntry(), pCandidate->isEncrypt()); @@ -187,6 +192,11 @@ void ZipOutputStream::finish() writeEND( nOffset, static_cast < sal_Int32 > (m_aChucker.GetPosition()) - nOffset); m_xStream->flush(); m_aZipList.clear(); + + if (m_aDeflateException.hasValue()) + { // throw once all threads are finished and m_aEntries can be released + ::cppu::throwException(m_aDeflateException); + } } const css::uno::Reference< css::io::XOutputStream >& ZipOutputStream::getStream() diff --git a/package/source/zippackage/ZipPackageStream.cxx b/package/source/zippackage/ZipPackageStream.cxx index 43a9b8567aa0..5efb145fd9f7 100644 --- a/package/source/zippackage/ZipPackageStream.cxx +++ b/package/source/zippackage/ZipPackageStream.cxx @@ -486,6 +486,17 @@ private: catch (const uno::Exception&) { mpEntry->setParallelDeflateException(::cppu::getCaughtException()); + try + { + if (mpEntry->m_xOutStream.is()) + mpEntry->closeBufferFile(); + if (!mpEntry->m_aTempURL.isEmpty()) + mpEntry->deleteBufferFile(); + } + catch (uno::Exception const&) + { + } + mpEntry->setFinished(); } } }; diff --git a/sfx2/source/doc/docfile.cxx b/sfx2/source/doc/docfile.cxx index 184a307f09df..6a0c4c9f927d 100644 --- a/sfx2/source/doc/docfile.cxx +++ b/sfx2/source/doc/docfile.cxx @@ -1625,10 +1625,10 @@ bool SfxMedium::StorageCommit_Impl() OSL_ENSURE( !pImpl->m_aName.isEmpty(), "The exception _must_ contain the temporary URL!\n" ); } } - - if ( !GetError() ) - SetError( ERRCODE_IO_GENERAL, OSL_LOG_PREFIX ); } + + if (!GetError()) + SetError( ERRCODE_IO_GENERAL, OSL_LOG_PREFIX ); } catch ( const uno::Exception& ) { |