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60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 Mike Fährmann
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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"""Base classes for extractors for different Futaba Channel boards"""
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from .common import Extractor, Message
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from .. import text
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class ChanThreadExtractor(Extractor):
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"""Base class for extractors for Futaba Channel boards"""
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category = "chan"
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subcategory = "thread"
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directory_fmt = ["{category}", "{board}-{thread}"]
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filename_fmt = "{tim}-{filename}{ext}"
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api_url = ""
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file_url = ""
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def __init__(self, match):
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Extractor.__init__(self)
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self.metadata = {
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"board": match.group(1),
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"thread": match.group(2),
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}
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def items(self):
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yield Message.Version, 1
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url = self.api_url.format_map(self.metadata)
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posts = self.request(url).json()["posts"]
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self.metadata["title"] = self.get_thread_title(posts[0])
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yield Message.Directory, self.metadata
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for post in posts:
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if "filename" not in post:
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continue
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self.update(post)
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yield Message.Url, self.build_url(post), post
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if "extra_files" in post:
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for file in post["extra_files"]:
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self.update(post, file)
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yield Message.Url, self.build_url(post), post
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def update(self, post, data=None):
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"""Update keyword dictionary"""
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post.update(data or self.metadata)
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post["extension"] = post["ext"][1:]
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def build_url(self, post):
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"""Construct an image url out of a post object"""
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return self.file_url.format_map(post)
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@staticmethod
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def get_thread_title(post):
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"""Return thread title from first post"""
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title = post["sub"] if "sub" in post else text.remove_html(post["com"])
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return text.unescape(title)[:50]
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