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.

Change-Id: Ia74ab8e46fa1349c049d05dbec3454bfbe7d61d9

1 files changed, 11 insertions, 0 deletions

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();
         }
     }
 };