2014-05-12 23:43:27 +00:00
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# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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from __future__ import division
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import base64
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import hashlib
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import os
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import ox
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2014-05-04 17:26:43 +00:00
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import pdf
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import epub
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import txt
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2014-05-12 23:43:27 +00:00
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def get_id(f=None, data=None):
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if data:
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return base64.b32encode(hashlib.sha1(data).digest())
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else:
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return base64.b32encode(ox.sha1sum(f).decode('hex'))
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2014-05-04 17:26:43 +00:00
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def metadata(f):
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ext = f.split('.')[-1]
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data = {}
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2014-05-18 23:24:04 +00:00
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data['extension'] = ext
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data['size'] = os.stat(f).st_size
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2014-05-04 17:26:43 +00:00
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if ext == 'pdf':
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info = pdf.info(f)
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elif ext == 'epub':
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info = epub.info(f)
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elif ext == 'txt':
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info = txt.info(f)
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for key in ('title', 'author', 'date', 'publisher', 'isbn'):
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if key in info:
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value = info[key]
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if isinstance(value, str):
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try:
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value = value.decode('utf-8')
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except:
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value = None
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if value:
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data[key] = info[key]
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if 'isbn' in data:
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value = data.pop('isbn')
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if len(value) == 10:
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data['isbn10'] = value
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data['mainid'] = 'isbn10'
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else:
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data['isbn13'] = value
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data['mainid'] = 'isbn13'
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if not 'title' in data:
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data['title'] = os.path.splitext(os.path.basename(f))[0]
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if 'author' in data and isinstance(data['author'], basestring):
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data['author'] = [data['author']]
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return data
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