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83 lines
2.7 KiB
Python
83 lines
2.7 KiB
Python
from hachoir.parser import createParser
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from hachoir.core.tools import makePrintable
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from hachoir.metadata import extractMetadata
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from hachoir.core.i18n import initLocale
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from sys import argv, stderr, exit
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from os import walk
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from os.path import join as path_join
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from fnmatch import fnmatch
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import codecs
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OUTPUT_FILENAME = "metadata.csv"
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class Extractor:
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def __init__(self, directory, fields):
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self.directory = directory
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self.fields = fields
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self.charset = "UTF-8"
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self.total = 0
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self.invalid = 0
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def main(self):
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output = codecs.open(OUTPUT_FILENAME, "w", self.charset)
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for filename in self.findFiles(self.directory, '*.doc'):
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self.total += 1
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line = self.processFile(filename)
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if line:
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print(line, file=output)
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else:
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self.invalid += 1
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output.close()
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self.summary()
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def summary(self):
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print(file=stderr)
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print("Valid files: %s" % (self.total - self.invalid), file=stderr)
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print("Invalid files: %s" % self.invalid, file=stderr)
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print("Total files: %s" % self.total, file=stderr)
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print(file=stderr)
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print("Result written into %s" % OUTPUT_FILENAME, file=stderr)
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def findFiles(self, directory, pattern):
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for dirpath, dirnames, filenames in walk(directory):
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for filename in filenames:
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if not fnmatch(filename.lower(), pattern):
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continue
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yield path_join(dirpath, filename)
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def processFile(self, filename):
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print("[%s] Process file %s..." % (self.total, filename))
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parser = createParser(filename)
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if not parser:
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print("Unable to parse file", file=stderr)
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return None
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try:
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metadata = extractMetadata(parser)
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except Exception as err:
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print("Metadata extraction error: %s" % str(err), file=stderr)
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return None
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if not metadata:
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print("Unable to extract metadata", file=stderr)
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return None
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filename = makePrintable(filename, self.charset)
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line = [filename]
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for field in self.fields:
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value = metadata.getText(field, '')
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value = makePrintable(value, self.charset)
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line.append(value)
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return '; '.join(line)
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def main():
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initLocale()
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if len(argv) != 3:
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print("usage: %s directory fields" % argv[0], file=stderr)
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print(file=stderr)
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print("eg. %s . title,creation_date" % argv[0], file=stderr)
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exit(1)
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directory = argv[1]
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fields = [field.strip() for field in argv[2].split(",")]
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Extractor(directory, fields).main()
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