78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
#!/usr/bin/python
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import mimetypes
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have_chardet = 0
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try:
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import chardet
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have_chardet = 1
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except: pass
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class ContentMagic:
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def __init__(self, encodings):
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self.encodings = encodings.split(':')
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self.mime_magic = None
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self.errors = []
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# Try to load magic
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try:
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import magic
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self.mime_magic = magic.open(magic.MAGIC_MIME_TYPE)
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self.mime_magic.load()
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except Exception, e:
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self.errors.append(e)
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# returns MIME type
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def guess_mime(self, mime, filename, tempfile):
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if mime == 'application/octet-stream':
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mime = ''
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if not mime and filename:
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mime = mimetypes.guess_type(filename)[0]
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if not mime and tempfile and self.mime_magic:
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if type(tempfile) == type(''):
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mime = self.mime_magic.file(tempfile)
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else:
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c = tempfile.read(4096)
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mime = self.mime_magic.buffer(c)
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return mime
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# returns (utf8_content, charset)
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def guess_charset(self, content):
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# Try to guess with chardet
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charset = None
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if have_chardet:
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# Try chardet
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try:
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charset = chardet.detect(content)
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if charset and charset['encoding']:
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charset = charset['encoding']
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if charset == 'MacCyrillic':
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# Silly MacCyr, try cp1251
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try:
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content = content.decode('windows-1251')
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charset = 'windows-1251'
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except: content = content.decode(charset)
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else:
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content = content.decode(charset)
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except: charset = None
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else:
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# Try UTF-8
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charset = 'utf-8'
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try: content = content.decode('utf-8')
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except: charset = None
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# Then try to guess primitively
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if charset is None:
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for charset in self.encodings:
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try:
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content = content.decode(charset)
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break
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except: charset = None
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return (content, charset)
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# guess and encode return value into UTF-8
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def utf8(self, content):
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(uni, charset) = self.guess_charset(content)
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if charset:
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return uni.encode('utf-8')
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return content
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