00c6821a3f
Python's 'ast' module and its 'NodeVisitor' class were incredibly helpful in identifying these
96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
# -*- coding: utf-8 -*-
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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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"""Extractors for https://2ch.org/"""
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from .common import Extractor, Message
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from .. import text, util
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BASE_PATTERN = r"(?:https?://)?2ch\.(org|su|life|hk)"
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class _2chThreadExtractor(Extractor):
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"""Extractor for 2ch threads"""
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category = "2ch"
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subcategory = "thread"
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root = "https://2ch.org"
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directory_fmt = ("{category}", "{board}", "{thread} {title}")
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filename_fmt = "{tim}{filename:? //}.{extension}"
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archive_fmt = "{board}_{thread}_{tim}"
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pattern = BASE_PATTERN + r"/([^/?#]+)/res/(\d+)"
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example = "https://2ch.org/a/res/12345.html"
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def __init__(self, match):
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tld = match[1]
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self.root = "https://2ch." + ("org" if tld == "hk" else tld)
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Extractor.__init__(self, match)
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def items(self):
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_, board, thread = self.groups
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url = f"{self.root}/{board}/res/{thread}.json"
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posts = self.request_json(url)["threads"][0]["posts"]
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op = posts[0]
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title = op.get("subject") or text.remove_html(op["comment"])
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thread = {
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"board" : board,
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"thread": thread,
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"title" : text.unescape(title)[:50],
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}
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yield Message.Directory, "", thread
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for post in posts:
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if files := post.get("files"):
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post["post_name"] = post["name"]
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post["date"] = self.parse_timestamp(post["timestamp"])
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del post["files"]
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del post["name"]
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for file in files:
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file.update(thread)
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file.update(post)
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file["filename"] = file["fullname"].rpartition(".")[0]
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file["tim"], _, file["extension"] = \
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file["name"].rpartition(".")
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yield Message.Url, self.root + file["path"], file
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class _2chBoardExtractor(Extractor):
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"""Extractor for 2ch boards"""
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category = "2ch"
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subcategory = "board"
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root = "https://2ch.org"
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pattern = BASE_PATTERN + r"/([^/?#]+)/?$"
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example = "https://2ch.org/a/"
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def __init__(self, match):
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tld = match[1]
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self.root = "https://2ch." + ("org" if tld == "hk" else tld)
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Extractor.__init__(self, match)
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def items(self):
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base = f"{self.root}/{self.groups[1]}"
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# index page
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url = base + "/index.json"
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index = self.request_json(url)
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index["_extractor"] = _2chThreadExtractor
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for thread in index["threads"]:
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url = f"{base}/res/{thread['thread_num']}.html"
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yield Message.Queue, url, index
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# pages 1..n
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for n in util.advance(index["pages"], 1):
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url = f"{base}/{n}.json"
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page = self.request_json(url)
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page["_extractor"] = _2chThreadExtractor
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for thread in page["threads"]:
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url = f"{base}/res/{thread['thread_num']}.html"
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yield Message.Queue, url, page
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