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authorMiklos Vajna <vmiklos@collabora.com>2020-10-28 14:54:52 +0100
committerAndras Timar <andras.timar@collabora.com>2020-10-31 22:52:59 +0100
commit44ee2734c1ae6d58e8aee0ff79cfebdf8aef4457 (patch)
tree391f9a628c785c139c9a19c89023b928a9bd5135 /include
parentc7952cb2646f7c385b68f8e7acce5cf2713c567c (diff)
tdf#123476 filter: try to detect 0-byte files based on extension
A 0-byte ("empty") pptx file is obviously junk input, so it's not surprising if the catch-all generic_Text filter is chosen to open it in Writer at the end. But we can do better: if we really get an empty file URL with an extension we can recognize, that we can fake the filter type / filter name, so the empty "presentation" opens in Impress, and also a re-save works as expected. This builds on top of commit 8a201be240b6d408d15166be7ffc576b9e123634 (fdo#68903 Import .tsv and .xls plain text files in Calc by default, 2013-10-27), just the new way works for all supported file extensions and also with filters which would not handle empty input (e.g. pptx refuses the import if the ZIP storage is broken). Change-Id: Ie01650a5eb6ca42c35e090133965467b621bb526 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/104939 Reviewed-by: Miklos Vajna <vmiklos@collabora.com> Tested-by: Jenkins Reviewed-on: https://gerrit.libreoffice.org/c/core/+/105039 Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com> Reviewed-by: Andras Timar <andras.timar@collabora.com>
Diffstat (limited to 'include')
-rw-r--r--include/tools/stream.hxx6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/tools/stream.hxx b/include/tools/stream.hxx
index 370372aba454..c258425cdd0c 100644
--- a/include/tools/stream.hxx
+++ b/include/tools/stream.hxx
@@ -568,6 +568,12 @@ inline std::size_t write_uInt16_lenPrefixed_uInt8s_FromOUString(SvStream& rStrm,
SAL_WARN_UNUSED_RESULT TOOLS_DLLPUBLIC bool checkSeek(SvStream &rSt, sal_uInt64 nOffset);
+namespace tools
+{
+/// Is rUrl a file:// URL with no contents?
+TOOLS_DLLPUBLIC bool isEmptyFileUrl(const OUString& rUrl);
+}
+
// FileStream
class TOOLS_DLLPUBLIC SvFileStream : public SvStream