We can't yet differentiate between a file and a directory

[ross-spencer]

The three ole2 files:

• fmt-1371-container-signature-id-48000.opd
• fmt-1372-container-signature-id-48010.opd
• fmt-1373-container-signature-id-48020.opd

Have signature syntax like:

        <ContainerSignature Id="48000" ContainerType="OLE2">
            <Description>Omnipage 10 Document</Description>
            <Files>
                <File>
                    <Path>PageManager/page1</Path>
                </File>
                <File>
                    <Path>Version/Data</Path>
                    <BinarySignatures>
                        <InternalSignatureCollection>                    
                            <InternalSignature ID="48000">
                                <ByteSequence Reference="BOFoffset">
                                    <SubSequence Position="1" SubSeqMinOffset="0" SubSeqMaxOffset="0">
                                        <Sequence>04 01 00 00 65 00 00 00 43 61 65 72 65 20 4F 6D 6E 69 70 61 67 65 20 4F 50 44 20 31 30 2E 30</Sequence>
                                    </SubSequence>
                                </ByteSequence>
                            </InternalSignature>
                        </InternalSignatureCollection>
                    </BinarySignatures>
                </File>       
            </Files>
        </ContainerSignature>

        <ContainerSignature Id="48010" ContainerType="OLE2">
            <Description>Omnipage 12 Document</Description>
            <Files>
                <File>
                    <Path>PageManager/page1</Path>
                </File>
		 <File>
		    <Path>Version/Data</Path>
                    <BinarySignatures>
                        <InternalSignatureCollection>                    
	                        <InternalSignature ID="48010">
	                            <ByteSequence Reference="BOFoffset">
	                                <SubSequence Position="1" SubSeqMinOffset="0" SubSeqMaxOffset="0">
	                                    <Sequence>04 01 00 00</Sequence>
	                                </SubSequence>
	                            </ByteSequence>
	                        </InternalSignature>
	                    </InternalSignatureCollection>
                    </BinarySignatures>
                </File>              
            </Files>
        </ContainerSignature>
        
        <ContainerSignature Id="48020" ContainerType="OLE2">
            <Description>Omnipage 18 Document</Description>
            <Files>
                <File>
                    <Path>Document/Page1</Path>
                </File>
                <File>
                    <Path>Document/Data</Path>
                    <BinarySignatures>
                        <InternalSignatureCollection>                    
                            <InternalSignature ID="48020">
                                <ByteSequence Reference="BOFoffset">
                                    <SubSequence Position="1" SubSeqMinOffset="0" SubSeqMaxOffset="0">
                                        <Sequence>52 4F 53 00</Sequence>
                                    </SubSequence>
                                </ByteSequence>
                            </InternalSignature>
                        </InternalSignatureCollection>
                    </BinarySignatures>
                </File>              
            </Files>
        </ContainerSignature>

And the PageManager/page1 path is interpreted as a directory.

Compare it to SIARD though and the terminating slash can be used to tell us it actually is a directory: header/siardversion/2.1/.

So, it looks like we need another check in the code that enables us to create a placeholder file rather than just a directory.