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# -*- coding: utf-8 -*-
# Copyright 2022-2025 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 vichan imageboards"""
from .common import BaseExtractor, Message
from .. import text
class VichanExtractor(BaseExtractor):
"""Base class for vichan extractors"""
basecategory = "vichan"
BASE_PATTERN = VichanExtractor.update({
"8kun": {
"root": "https://8kun.top",
"pattern": r"8kun\.top",
},
"smugloli": {
"root": None,
"pattern": r"smuglo(?:\.li|li\.net)",
},
"gurochan": {
"root": "https://boards.guro.cx",
"pattern": r"boards\.guro\.cx",
},
})
class VichanThreadExtractor(VichanExtractor):
"""Extractor for vichan threads"""
subcategory = "thread"
directory_fmt = ("{category}", "{board}", "{thread} {title}")
filename_fmt = "{time}{num:?-//} {filename}.{extension}"
archive_fmt = "{board}_{thread}_{tim}"
pattern = rf"{BASE_PATTERN}/([^/?#]+)/res/(\d+)"
example = "https://8kun.top/a/res/12345.html"
def items(self):
board = self.groups[-2]
thread = self.groups[-1]
url = f"{self.root}/{board}/res/{thread}.json"
posts = self.request_json(url)["posts"]
title = posts[0].get("sub") or text.remove_html(posts[0]["com"])
process = (self._process_8kun if self.category == "8kun" else
self._process)
data = {
"board" : board,
"thread": thread,
"title" : text.unescape(title)[:50],
"num" : 0,
}
yield Message.Directory, "", data
for post in posts:
if "filename" in post:
yield process(post, data)
if "extra_files" in post:
for post["num"], filedata in enumerate(
post["extra_files"], 1):
yield process(post, filedata)
def _process(self, post, data):
post.update(data)
ext = post["ext"]
post["extension"] = ext[1:]
post["url"] = url = \
f"{self.root}/{post['board']}/src/{post['tim']}{ext}"
return Message.Url, url, post
def _process_8kun(self, post, data):
post.update(data)
ext = post["ext"]
tim = post["tim"]
if len(tim) > 16:
url = f"https://media.128ducks.com/file_store/{tim}{ext}"
else:
url = f"https://media.128ducks.com/{post['board']}/src/{tim}{ext}"
post["url"] = url
post["extension"] = ext[1:]
return Message.Url, url, post
class VichanBoardExtractor(VichanExtractor):
"""Extractor for vichan boards"""
subcategory = "board"
pattern = rf"{BASE_PATTERN}/([^/?#]+)(?:/index|/catalog|/\d+|/?$)"
example = "https://8kun.top/a/"
def items(self):
board = self.groups[-1]
url = f"{self.root}/{board}/threads.json"
threads = self.request_json(url)
for page in threads:
for thread in page["threads"]:
url = f"{self.root}/{board}/res/{thread['no']}.html"
thread["page"] = page["page"]
thread["_extractor"] = VichanThreadExtractor
yield Message.Queue, url, thread
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