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3# $File: msooxml,v 1.4 2014/01/06 18:16:24 rrt Exp $
| 3# $File: msooxml,v 1.5 2014/08/05 07:38:45 christos Exp $
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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# start by checking for ZIP local file header signature
160 string PK\003\004
17!:strength +10
18# make sure the first file is correct
| 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# start by checking for ZIP local file header signature
160 string PK\003\004
17!:strength +10
18# make sure the first file is correct
|
19>0x1E regex \[Content_Types\]\.xml|_rels/\.rels
| 19>0x1E regex \\[Content_Types\\]\\.xml|_rels/\\.rels
|
20# skip to the second local file header
21# since some documents include a 520-byte extra field following the file
22# header, we need to scan for the next header
23>>(18.l+49) search/2000 PK\003\004
24# now skip to the *third* local file header; again, we need to scan due to a
25# 520-byte extra field following the file header
26>>>&26 search/1000 PK\003\004
27# and check the subdirectory name to determine which type of OOXML
28# file we have. Correct the mimetype with the registered ones:
29# http://technet.microsoft.com/en-us/library/cc179224.aspx
30>>>>&26 string word/ Microsoft Word 2007+
31!:mime application/vnd.openxmlformats-officedocument.wordprocessingml.document
32>>>>&26 string ppt/ Microsoft PowerPoint 2007+
33!:mime application/vnd.openxmlformats-officedocument.presentationml.presentation
34>>>>&26 string xl/ Microsoft Excel 2007+
35!:mime application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
36>>>>&26 default x Microsoft OOXML
| 20# skip to the second local file header
21# since some documents include a 520-byte extra field following the file
22# header, we need to scan for the next header
23>>(18.l+49) search/2000 PK\003\004
24# now skip to the *third* local file header; again, we need to scan due to a
25# 520-byte extra field following the file header
26>>>&26 search/1000 PK\003\004
27# and check the subdirectory name to determine which type of OOXML
28# file we have. Correct the mimetype with the registered ones:
29# http://technet.microsoft.com/en-us/library/cc179224.aspx
30>>>>&26 string word/ Microsoft Word 2007+
31!:mime application/vnd.openxmlformats-officedocument.wordprocessingml.document
32>>>>&26 string ppt/ Microsoft PowerPoint 2007+
33!:mime application/vnd.openxmlformats-officedocument.presentationml.presentation
34>>>>&26 string xl/ Microsoft Excel 2007+
35!:mime application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
36>>>>&26 default x Microsoft OOXML
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