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#!/usr/bin/python
'''
Metadata anonymisation toolkit library
'''
import sys
import os
import hachoir_core.cmd_line
import hachoir_parser
import hachoir_editor
import images
__version__ = "0.1"
__author__ = "jvoisin"
strippers = {
hachoir_parser.image.JpegFile: images.JpegStripper,
hachoir_parser.image.PngFile: images.PngStripper,
}
def create_class_file(name):
'''
return a $FILETYPEStripper() class,
corresponding to the filetype of the given file
'''
if not(os.path.isfile(name)): #check if the file exist
print("Error: %s is not a valid file" % name)
sys.exit(1)
filename = ""
realname = name
filename = hachoir_core.cmd_line.unicodeFilename(name)
parser = hachoir_parser.createParser(filename)
if not parser:
print("Unable to parse the file %s : sorry" % filename)
sys.exit(1)
editor = hachoir_editor.createEditor(parser)
try:
'''this part is a little tricky :
stripper_class will receice the name of the class $FILETYPEStripper,
(which herits from the "file" class), based on the editor
of given file (name)
'''
stripper_class = strippers[editor.input.__class__]
except KeyError:
#Place for another lib than hachoir
print("Don't have stripper for file type: %s" % editor.description)
sys.exit(1)
return stripper_class(realname, filename, parser, editor)
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