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Diffstat (limited to 'package/source/zippackage/ZipPackageStream.cxx')
-rw-r--r--package/source/zippackage/ZipPackageStream.cxx34
1 files changed, 29 insertions, 5 deletions
diff --git a/package/source/zippackage/ZipPackageStream.cxx b/package/source/zippackage/ZipPackageStream.cxx
index 88afb2a3366a..62df374af2cb 100644
--- a/package/source/zippackage/ZipPackageStream.cxx
+++ b/package/source/zippackage/ZipPackageStream.cxx
@@ -550,13 +550,37 @@ uno::Reference< io::XInputStream > SAL_CALL ZipPackageStream::getDataStream()
{
xResult = rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData(), bIsEncrypted, rZipPackage.GetSharedMutexRef() );
}
- catch( packages::WrongPasswordException& )
+ catch( const packages::WrongPasswordException& )
{
- // workaround for the encrypted documents generated with the old OOo1.x bug.
- if ( rZipPackage.GetStartKeyGenID() == xml::crypto::DigestID::SHA1 && !m_bUseWinEncoding )
+ if ( rZipPackage.GetStartKeyGenID() == xml::crypto::DigestID::SHA1 )
{
- xResult = rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData( true ), bIsEncrypted, rZipPackage.GetSharedMutexRef() );
- m_bUseWinEncoding = true;
+ try
+ {
+ // rhbz#1013844 / fdo#47482 workaround for the encrypted
+ // OpenOffice.org 1.0 documents generated by Libreoffice <=
+ // 3.6 with the new encryption format and using SHA256, but
+ // missing a specified startkey of SHA256
+
+ // force SHA256 and see if that works
+ m_nImportedStartKeyAlgorithm = xml::crypto::DigestID::SHA256;
+ xResult = rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData(), bIsEncrypted, rZipPackage.GetSharedMutexRef() );
+ return xResult;
+ }
+ catch (const packages::WrongPasswordException&)
+ {
+ // if that didn't work, restore to SHA1 and trundle through the *other* earlier
+ // bug fix
+ m_nImportedStartKeyAlgorithm = xml::crypto::DigestID::SHA1;
+ }
+
+ // workaround for the encrypted documents generated with the old OOo1.x bug.
+ if ( !m_bUseWinEncoding )
+ {
+ xResult = rZipPackage.getZipFile().getDataStream( aEntry, GetEncryptionData( true ), bIsEncrypted, rZipPackage.GetSharedMutexRef() );
+ m_bUseWinEncoding = true;
+ }
+ else
+ throw;
}
else
throw;