88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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import base64
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import hashlib
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import os
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import codecs
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import ox
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from . import pdf
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from . import cbr
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from . import epub
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from . import txt
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from . import opf
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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()).decode()
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else:
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return base64.b32encode(codecs.decode(ox.sha1sum(f, cached=True), 'hex')).decode()
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def metadata(f, from_=None):
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ext = f.split('.')[-1]
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data = {}
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data['extension'] = ext
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data['size'] = os.stat(f).st_size
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if ext == 'cbr':
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info = cbr.info(f)
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elif ext == 'epub':
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info = epub.info(f)
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elif ext == 'pdf':
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info = pdf.info(f)
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elif ext == 'txt':
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info = txt.info(f)
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opf_info = {}
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metadata_opf = os.path.join(os.path.dirname(from_ or f), 'metadata.opf')
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if os.path.exists(metadata_opf):
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opf_info = opf.info(metadata_opf)
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for key in (
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'title', 'author', 'date', 'publisher',
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'language', 'textsize', 'pages',
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'isbn', 'asin'
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):
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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 key in opf_info:
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data[key] = opf_info[key]
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if key in data:
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if isinstance(data[key], str):
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data[key] = data[key].replace('\x00', '')
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elif isinstance(data[key], list):
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data[key] = [e.replace('\x00', '') if isinstance(e, str) else e for e in data[key]]
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if 'isbn' in data:
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data['primaryid'] = ['isbn', data['isbn'][0]]
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elif 'asin' in data:
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data['primaryid'] = ['asin', data['asin'][0]]
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if 'author' in data:
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if isinstance(data['author'], str):
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if data['author'].strip():
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data['author'] = data['author'].strip().split('; ')
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else:
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del data['author']
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if data['author'] in (['Administrator'], ['Default'], ['user']):
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del data['author']
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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 data['title'].startswith('Microsoft Word - '):
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data['title'] = data['title'][len('Microsoft Word - '):]
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for postfix in ('.doc', 'docx', '.qxd', '.indd', '.tex'):
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if data['title'].endswith(postfix):
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data['title'] = data['title'][:-len(postfix)]
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if not data['title'].strip():
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del data['title']
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return data
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