private static PartInfo GetSheetPart(Stream s)
{
OPCPackage package = new OPCPackage(s);
foreach (PartInfo pi in package.GetRelatedObjects())
{
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml")
return pi;
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.spreadsheetml.chartsheet+xml")
return pi;
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.spreadsheetml.dialogsheet+xml")
return pi;
if (pi.GetContentType() == "application/vnd.ms-excel.intlmacrosheet+xml")
return pi;
if (pi.GetContentType() == "application/vnd.ms-excel.macrosheet+xml")
return pi;
}
return null;
}
public static bool DocumentContainsEmbeddedObjects(string sFileName)
{
List<string> PartInfoTargets = new List<string>(); // Beware circular relationships!!
using (Stream s = new FileStream(sFileName, FileMode.Open))
{
OPCPackage package = new OPCPackage(s);
foreach (PartInfo pi in package.GetRelatedObjects())
{
if (PartInfoContainsEmbeddedObjects(pi, ref PartInfoTargets))
return true;
}
}
return false;
}
static PartInfo GetDocumentPart(Stream s)
{
OPCPackage package = new OPCPackage(s);
foreach (PartInfo pi in package.GetRelatedObjects())
{
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.wordprocessingml.document.main+xml")
return pi;
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.wordprocessingml.template.main+xml")
return pi;
if (pi.GetContentType() == "application/vnd.ms-word.document.macroEnabled.main+xml")
return pi;
if (pi.GetContentType() == "application/vnd.ms-word.template.macroEnabledTemplate.main+xml")
return pi;
}
return null;
}
private static PartInfo GetPresentationPart(Stream s)
{
OPCPackage package = new OPCPackage(s);
foreach (PartInfo pi in package.GetRelatedObjects())
{
if (pi.GetContentType() == "application/vnd.ms-powerpoint.presentation.macroEnabled.main+xml")
return pi;
if (pi.GetContentType() == "application/vnd.openxmlformats-officedocument.presentationml.presentation.main+xml")
return pi;
}
return null;
}
