Parsing Office metadata – office_parser.py

The last of the plugins, office_parser.py, parses DOCX, PPTX, and XLSX files, extracting embedded metadata in XML files. We use the zipfile module, which is part of the standard library, to unzip and access the contents of the Office document. This script has two functions: officeParser() and getTags().

001 import zipfile
002 import os
003 from time import gmtime, strftime
004  
005 from lxml import etree
006 import processors
007  
008 __author__ = 'Preston Miller & Chapin Bryce'
009 __date__ = '20160401'
010 __version__ = 0.01
011 __description__ = 'This scripts parses embedded metadata from office files'
012  
013 def officeParser():
...
028 def getTags():

Evaluating the officeParser() function

The officeParser() function first checks the input file against the known file signature. All Office documents share the same file signature, 0x504b030414000600, and if the input file matches, it is then further processed by the getTags() function, as...