/// <summary>
/// This method saves all the Word embedded binary objects from the <paramref name="inputFile"/> to the
/// <see cref="outputFolder"/>
/// </summary>
/// <param name="inputFile">The binary Word file</param>
/// <param name="outputFolder">The output folder</param>
/// <returns></returns>
/// <exception cref="OEFileIsPasswordProtected">Raised when the <see cref="inputFile"/> is password protected</exception>
public static List <string> SaveToFolder(string inputFile, string outputFolder)
{
using (var compoundFile = new CompoundFile(inputFile))
{
if (IsPasswordProtected(compoundFile))
{
throw new OEFileIsPasswordProtected("The file '" + Path.GetFileName(inputFile) +
"' is password protected");
}
var result = new List <string>();
if (!compoundFile.RootStorage.ExistsStorage("ObjectPool"))
{
return(result);
}
var objectPoolStorage = compoundFile.RootStorage.GetStorage("ObjectPool") as CFStorage;
if (objectPoolStorage == null)
{
return(result);
}
// Multiple objects are stored as children of the storage object
foreach (var child in objectPoolStorage.Children)
{
var childStorage = child as CFStorage;
if (childStorage == null)
{
continue;
}
// Get the objInfo stream to check if this is a linked file... if so then ignore it
var objInfo = childStorage.GetStream("\x0003ObjInfo");
var objInfoStream = new ObjInfoStream(objInfo);
// We don't want to export linked objects and objects that are not shown as an icon...
// because these objects are already visible on the Word document
if (objInfoStream.Link || !objInfoStream.Icon)
{
continue;
}
var extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder);
if (!string.IsNullOrEmpty(extractedFileName))
{
result.Add(extractedFileName);
}
}
return(result);
}
}
/// <summary>
/// This method saves all the Word embedded binary objects from the <paramref name="inputFile"/> to the
/// <paramref name="outputFolder"/>
/// </summary>
/// <param name="inputFile">The binary Word file</param>
/// <param name="outputFolder">The output folder</param>
/// <returns></returns>
/// <exception cref="OEFileIsPasswordProtected">Raised when the <paramref name="inputFile"/> is password protected</exception>
internal List <string> Extract(string inputFile, string outputFolder)
{
using (var compoundFile = new CompoundFile(inputFile))
{
var result = new List <string>();
var objectPoolStorage = compoundFile.RootStorage.TryGetStorage("ObjectPool");
if (objectPoolStorage == null)
{
return(result);
}
Logger.WriteToLog("Object Pool stream found (Word)");
void Entries(CFItem item)
{
var childStorage = item as CFStorage;
if (childStorage == null)
{
return;
}
string extractedFileName;
if (childStorage.TryGetStream("\x0001Ole10Native") != null)
{
var compObj = childStorage.TryGetStream("\x0001CompObj");
if (compObj != null)
{
var compObjStream = new CompObjStream(compObj);
if (compObjStream.AnsiUserType == "OLE Package")
{
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder, null);
if (!string.IsNullOrEmpty(extractedFileName))
{
result.Add(extractedFileName);
}
return;
}
}
var objInfo = childStorage.TryGetStream("\x0003ObjInfo");
if (objInfo != null)
{
var objInfoStream = new ObjInfoStream(objInfo);
// We don't want to export linked objects and objects that are not shown as an icon...
// because these objects are already visible on the Word document
if (objInfoStream.Link || !objInfoStream.Icon)
{
return;
}
}
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder, null);
}
else
{
// Get the objInfo stream to check if this is a linked file... if so then ignore it
var objInfo = childStorage.GetStream("\x0003ObjInfo");
var objInfoStream = new ObjInfoStream(objInfo);
// We don't want to export linked objects and objects that are not shown as an icon...
// because these objects are already visible on the Word document
if (objInfoStream.Link || !objInfoStream.Icon)
{
return;
}
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder);
}
if (!string.IsNullOrEmpty(extractedFileName))
{
result.Add(extractedFileName);
}
}
objectPoolStorage.VisitEntries(Entries, false);
return(result);
}
}
/// <summary>
/// This method saves all the Word embedded binary objects from the <paramref name="inputFile"/> to the
/// <see cref="outputFolder"/>
/// </summary>
/// <param name="inputFile">The binary Word file</param>
/// <param name="outputFolder">The output folder</param>
/// <returns></returns>
/// <exception cref="OEFileIsPasswordProtected">Raised when the <see cref="inputFile"/> is password protected</exception>
public static List <string> SaveToFolder(string inputFile, string outputFolder)
{
var fileName = Path.GetFileName(inputFile);
using (var compoundFile = new CompoundFile(inputFile))
{
if (IsPasswordProtected(compoundFile, fileName))
{
throw new OEFileIsPasswordProtected("The file '" + fileName +
"' is password protected");
}
var result = new List <string>();
var objectPoolStorage = compoundFile.RootStorage.TryGetStorage("ObjectPool");
if (objectPoolStorage == null)
{
return(result);
}
Action <CFItem> entries = item =>
{
var childStorage = item as CFStorage;
if (childStorage == null)
{
return;
}
string extractedFileName;
if (childStorage.TryGetStream("\x0001Ole10Native") != null)
{
var compObj = childStorage.TryGetStream("\x0001CompObj");
if (compObj != null)
{
var compObjStream = new CompObjStream(compObj);
if (compObjStream.AnsiUserType == "OLE Package")
{
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder, null);
if (!string.IsNullOrEmpty(extractedFileName))
{
result.Add(extractedFileName);
}
return;
}
}
var objInfo = childStorage.TryGetStream("\x0003ObjInfo");
if (objInfo != null)
{
var objInfoStream = new ObjInfoStream(objInfo);
// We don't want to export linked objects and objects that are not shown as an icon...
// because these objects are already visible on the Word document
if (objInfoStream.Link || !objInfoStream.Icon)
{
return;
}
}
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder, null);
}
else
{
// Get the objInfo stream to check if this is a linked file... if so then ignore it
var objInfo = childStorage.GetStream("\x0003ObjInfo");
var objInfoStream = new ObjInfoStream(objInfo);
// We don't want to export linked objects and objects that are not shown as an icon...
// because these objects are already visible on the Word document
if (objInfoStream.Link || !objInfoStream.Icon)
{
return;
}
extractedFileName = Extraction.SaveFromStorageNode(childStorage, outputFolder);
}
if (!string.IsNullOrEmpty(extractedFileName))
{
result.Add(extractedFileName);
}
};
objectPoolStorage.VisitEntries(entries, false);
return(result);
}
}
