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# -*- coding: utf-8 -*-
# Copyright 2015-2019 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
"""Extractors for https://www.4chan.org/"""
from .common import Extractor, Message
from .. import text
class _4chanThreadExtractor(Extractor):
"""Extractor for 4chan threads"""
category = "4chan"
subcategory = "thread"
directory_fmt = ("{category}", "{board}", "{thread} {title}")
filename_fmt = "{tim} {filename}.{extension}"
archive_fmt = "{board}_{thread}_{tim}"
pattern = (r"(?:https?://)?boards\.4chan(?:nel)?\.org"
r"/([^/]+)/thread/(\d+)")
test = (
("https://boards.4chan.org/tg/thread/15396072/", {
"url": "39082ad166161966d7ba8e37f2173a824eb540f0",
"keyword": "7ae2f4049adf0d2f835eb91b6b26b7f4ec882e0a",
"content": "20b7b51afa51c9c31a0020a0737b889532c8d7ec",
}),
("https://boards.4channel.org/tg/thread/15396072/", {
"url": "39082ad166161966d7ba8e37f2173a824eb540f0",
"keyword": "7ae2f4049adf0d2f835eb91b6b26b7f4ec882e0a",
}),
)
def __init__(self, match):
Extractor.__init__(self, match)
self.board, self.thread = match.groups()
def items(self):
url = "https://a.4cdn.org/{}/thread/{}.json".format(
self.board, self.thread)
posts = self.request(url).json()["posts"]
title = posts[0].get("sub") or text.remove_html(posts[0]["com"])
data = {
"board" : self.board,
"thread": self.thread,
"title" : text.unescape(title)[:50],
}
yield Message.Directory, data
for post in posts:
if "filename" in post:
post.update(data)
post["extension"] = post["ext"][1:]
post["filename"] = text.unescape(post["filename"])
url = "https://i.4cdn.org/{}/{}{}".format(
post["board"], post["tim"], post["ext"])
yield Message.Url, url, post
class _4chanBoardExtractor(Extractor):
"""Extractor for 4chan boards"""
category = "4chan"
subcategory = "board"
pattern = r"(?:https?://)?boards\.4chan(?:nel)?\.org/([^/?#]+)/\d*$"
test = ("https://boards.4channel.org/po/", {
"pattern": _4chanThreadExtractor.pattern,
"count": ">= 100",
})
def __init__(self, match):
Extractor.__init__(self, match)
self.board = match.group(1)
def items(self):
url = "https://a.4cdn.org/{}/threads.json".format(self.board)
threads = self.request(url).json()
for page in threads:
for thread in page["threads"]:
url = "https://boards.4chan.org/{}/thread/{}/".format(
self.board, thread["no"])
thread["page"] = page["page"]
thread["_extractor"] = _4chanThreadExtractor
yield Message.Queue, url, thread
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