parser.py 文件源码

def parse_attachment(part):
    """
        Get attachments of an email

        :param `Message` part: A `Message`
        :rtype: list
        :return: The list of attachments
    """
    attachment = {}
    attachment['content_type'] = part.get_content_type()

    if attachment['content_type'].lower() in ['message/rfc822', 'message/delivery-status']:
        attachment['content'] = str(part)
    else:
        attachment['content'] = part.get_payload(decode=True)

    filename = part.get_filename()

    if not filename:
        filename = hashlib.sha1(attachment['content']).hexdigest()
        if attachment['content_type']:
            extension = mimetypes.guess_extension(attachment['content_type'])
            if extension:
                filename += extension

    attachment['filename'] = get_valid_filename(utils.decode_every_charset_in_the_world(filename))
    return attachment