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Member "file-5.35/magic/Magdir/msooxml" (8 Oct 2018, 2036 Bytes) of package /linux/misc/file-5.35.tar.gz:


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    1 
    2 #------------------------------------------------------------------------------
    3 # $File: msooxml,v 1.10 2018/10/08 18:25:25 christos Exp $
    4 # msooxml:  file(1) magic for Microsoft Office XML
    5 # From: Ralf Brown <ralf.brown@gmail.com>
    6 
    7 # .docx, .pptx, and .xlsx are XML plus other files inside a ZIP
    8 #   archive.  The first member file is normally "[Content_Types].xml".
    9 #   but some libreoffice generated files put this later. Perhaps skip
   10 #   the "[Content_Types].xml" test?
   11 # Since MSOOXML doesn't have anything like the uncompressed "mimetype"
   12 #   file of ePub or OpenDocument, we'll have to scan for a filename
   13 #   which can distinguish between the three types
   14 
   15 0		name		msooxml
   16 >0		string		word/		Microsoft Word 2007+
   17 !:mime application/vnd.openxmlformats-officedocument.wordprocessingml.document
   18 >0		string		ppt/		Microsoft PowerPoint 2007+
   19 !:mime application/vnd.openxmlformats-officedocument.presentationml.presentation
   20 >0		string		xl/		Microsoft Excel 2007+
   21 !:mime application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
   22 
   23 # start by checking for ZIP local file header signature
   24 0		string		PK\003\004
   25 !:strength +10
   26 # make sure the first file is correct
   27 >0x1E		use		msooxml
   28 >0x1E		regex		\\[Content_Types\\]\\.xml|_rels/\\.rels
   29 # skip to the second local file header
   30 # since some documents include a 520-byte extra field following the file
   31 # header, we need to scan for the next header
   32 >>(18.l+49)	search/6000	PK\003\004
   33 # now skip to the *third* local file header; again, we need to scan due to a
   34 # 520-byte extra field following the file header
   35 >>>&26		search/6000	PK\003\004
   36 # and check the subdirectory name to determine which type of OOXML
   37 # file we have.  Correct the mimetype with the registered ones:
   38 # http://technet.microsoft.com/en-us/library/cc179224.aspx
   39 >>>>&26		use		msooxml	
   40 >>>>&26		default		x
   41 # OpenOffice/Libreoffice orders ZIP entry differently, so check the 4th file
   42 >>>>>&26	search/6000	PK\003\004
   43 >>>>>>&26	use		msooxml	
   44 >>>>>>&26	default		x		Microsoft OOXML
   45 >>>>>&26	default		x		Microsoft OOXML