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authorLászló Németh <nemeth@numbertext.org>2018-06-18 16:48:02 +0200
committerLászló Németh <nemeth@numbertext.org>2018-06-19 09:09:44 +0200
commit4cb1e86e5217f09e1d98e51e46803a06fb72f5ce (patch)
tree4c72d5d4081878ba83b9ba650f345e43e554e609 /vcl/source/gdi/gfxlink.cxx
parent853350787df9a8d92c269ef1b6e764863e74ec2a (diff)
tdf#103913 keep ".emf" file extension and mime type
in documents, don't change them to wmf and image/x-wmf silently, resulting for example, dropping or rejecting modified documents by firewall packet filtering. Change-Id: I3b8634ae022c7c026b0ed4ebc345c1c3b3f96337 Reviewed-on: https://gerrit.libreoffice.org/56045 Reviewed-by: László Németh <nemeth@numbertext.org> Tested-by: László Németh <nemeth@numbertext.org>
Diffstat (limited to 'vcl/source/gdi/gfxlink.cxx')
-rw-r--r--vcl/source/gdi/gfxlink.cxx16
1 files changed, 16 insertions, 0 deletions
diff --git a/vcl/source/gdi/gfxlink.cxx b/vcl/source/gdi/gfxlink.cxx
index 885385cb51b0..d37938dba8a0 100644
--- a/vcl/source/gdi/gfxlink.cxx
+++ b/vcl/source/gdi/gfxlink.cxx
@@ -286,4 +286,20 @@ std::shared_ptr<sal_uInt8> GfxLink::GetSwapInData() const
return pData;
}
+bool GfxLink::IsEMF() const
+{
+ const sal_uInt8* pGraphicAry = GetData();
+ if ((GetType() == GfxLinkType::NativeWmf) && pGraphicAry && (GetDataSize() > 0x2c))
+ {
+ // check the magic number
+ if ((pGraphicAry[0x28] == 0x20) && (pGraphicAry[0x29] == 0x45)
+ && (pGraphicAry[0x2a] == 0x4d) && (pGraphicAry[0x2b] == 0x46))
+ {
+ //emf detected
+ return true;
+ }
+ }
+ return false;
+}
+
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */