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242 lines
8.3 KiB
242 lines
8.3 KiB
# -*- coding: utf-8 -*-
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# Copyright 2014-2017 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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"""Extract images from https://chan.sankakucomplex.com/"""
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from .common import SharedConfigExtractor, Message
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from .. import text, util, exception
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from ..cache import cache
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import time
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import random
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class SankakuExtractor(SharedConfigExtractor):
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"""Base class for sankaku extractors"""
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basecategory = "booru"
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category = "sankaku"
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filename_fmt = "{category}_{id}_{md5}.{extension}"
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root = "https://chan.sankakucomplex.com"
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cookienames = ("login", "pass_hash")
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cookiedomain = "chan.sankakucomplex.com"
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def __init__(self):
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SharedConfigExtractor.__init__(self)
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self.logged_in = True
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self.start_page = 1
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self.start_post = 0
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self.wait_min = self.config("wait-min", 2)
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self.wait_max = self.config("wait-max", 4)
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if self.wait_max < self.wait_min:
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self.wait_max = self.wait_min
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def items(self):
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self.login()
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yield Message.Version, 1
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yield Message.Directory, self.get_metadata()
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for post_id in util.advance(self.get_posts(), self.start_post):
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self.wait()
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data = self.get_post_data(post_id)
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url = data["file_url"]
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yield Message.Url, url, text.nameext_from_url(url, data)
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def skip(self, num):
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self.start_post += num
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return num
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def get_metadata(self):
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"""Return general metadata"""
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return {}
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def get_posts(self):
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"""Return an iterable containing all relevant post ids"""
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def get_post_data(self, post_id, extr=text.extract):
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"""Extract metadata of a single post"""
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url = self.root + "/post/show/" + post_id
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page = self.request(url, retries=10).text
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tags , pos = extr(page, "<title>", " | Sankaku Channel</title>")
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vavg , pos = extr(page, "itemprop=ratingValue>", "<", pos)
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vcnt , pos = extr(page, "itemprop=reviewCount>", "<", pos)
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_ , pos = extr(page, "Posted: <", "", pos)
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created, pos = extr(page, ' title="', '"', pos)
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rating = extr(page, "<li>Rating: ", "<", pos)[0]
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file_url, pos = extr(page, '<li>Original: <a href="', '"', pos)
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if file_url:
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width , pos = extr(page, '>', 'x', pos)
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height, pos = extr(page, '', ' ', pos)
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else:
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width , pos = extr(page, '<object width=', ' ', pos)
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height, pos = extr(page, 'height=', '>', pos)
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file_url = extr(page, '<embed src="', '"', pos)[0]
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return {
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"id": util.safe_int(post_id),
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"md5": file_url.rpartition("/")[2].partition(".")[0],
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"tags": tags,
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"vote_average": float(vavg or 0),
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"vote_count": util.safe_int(vcnt),
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"created_at": created,
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"rating": (rating or "?")[0].lower(),
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"file_url": "https:" + text.unescape(file_url),
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"width": util.safe_int(width),
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"height": util.safe_int(height),
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}
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def wait(self):
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"""Wait for a randomly chosen amount of seconds"""
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time.sleep(random.uniform(self.wait_min, self.wait_max))
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def login(self):
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"""Login and set necessary cookies"""
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if self._check_cookies(self.cookienames):
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return
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username, password = self._get_auth_info()
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if username:
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cookies = self._login_impl(username, password)
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for key, value in cookies.items():
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self.session.cookies.set(
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key, value, domain=self.cookiedomain)
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else:
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self.logged_in = False
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@cache(maxage=90*24*60*60, keyarg=1)
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def _login_impl(self, username, password):
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"""Actual login implementation"""
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self.log.info("Logging in as %s", username)
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params = {
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"url": "",
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"user[name]": username,
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"user[password]": password,
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"commit": "Login",
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}
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response = self.request(self.root + "/user/authenticate",
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method="POST", params=params)
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if not response.history or response.url != self.root + "/user/home":
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raise exception.AuthenticationError()
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cookies = response.history[0].cookies
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return {c: cookies[c] for c in self.cookienames}
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class SankakuTagExtractor(SankakuExtractor):
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"""Extractor for images from chan.sankakucomplex.com by search-tags"""
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subcategory = "tag"
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directory_fmt = ["{category}", "{tags}"]
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pattern = [r"(?:https?://)?chan\.sankakucomplex\.com"
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r"/\?(?:[^&#]*&)*tags=([^&#]+)"]
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test = [
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("https://chan.sankakucomplex.com/?tags=bonocho", {
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"count": 5,
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"pattern": (r"https://cs\.sankakucomplex\.com/data/[^/]{2}/[^/]{2}"
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r"/[^/]{32}\.\w+\?e=\d+&m=[^&#]+"),
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}),
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("https://chan.sankakucomplex.com/?tags=bonocho+a+b+c+d", {
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"options": (("username", None),),
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"exception": exception.StopExtraction,
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})
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]
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per_page = 20
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def __init__(self, match):
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SankakuExtractor.__init__(self)
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self.tags = text.unquote(match.group(1).replace("+", " "))
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def skip(self, num):
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pages, posts = divmod(num, self.per_page)
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if pages > 49:
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self.log.info("Cannot skip more than 50 pages ahead.")
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pages, posts = 49, self.per_page
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self.start_page += pages
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self.start_post += posts
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return pages * self.per_page + posts
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def get_metadata(self):
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tags = self.tags.split()
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if not self.logged_in and len(tags) > 4:
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self.log.error("Unauthenticated users cannot use "
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"more than 4 tags at once.")
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raise exception.StopExtraction()
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return {"tags": " ".join(tags)}
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def get_posts(self):
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params = {"tags": self.tags, "page": self.start_page}
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while self.logged_in or params["page"] <= 25:
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page = self.request(self.root, params=params, retries=10).text
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pos = page.find("<div id=more-popular-posts-link>") + 1
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ids = list(text.extract_iter(page, '" id=p', '>', pos))
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if not ids:
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return
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yield from ids
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params["page"] += 1
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params["next"] = int(ids[-1]) - 1
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self.log.warning(
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"Unauthenticated users may only access the first 500 images / 25 "
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"pages. (Use '--range 501-' to continue downloading from this "
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"point onwards after setting up an account.)")
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class SankakuPoolExtractor(SankakuExtractor):
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"""Extractor for image-pools from chan.sankakucomplex.com"""
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subcategory = "pool"
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directory_fmt = ["{category}", "pool", "{pool}"]
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pattern = [r"(?:https?://)?chan\.sankakucomplex\.com/pool/show/(\d+)"]
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test = [("https://chan.sankakucomplex.com/pool/show/90", {
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"count": 5,
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})]
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per_page = 24
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def __init__(self, match):
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SankakuExtractor.__init__(self)
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self.pool_id = match.group(1)
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def skip(self, num):
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pages, posts = divmod(num, self.per_page)
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self.start_page += pages
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self.start_post += posts
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return num
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def get_metadata(self):
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return {"pool": self.pool_id}
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def get_posts(self):
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url = self.root + "/pool/show/" + self.pool_id
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params = {"page": self.start_page}
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while True:
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page = self.request(url, params=params, retries=10).text
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ids = list(text.extract_iter(page, '" id=p', '>'))
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yield from ids
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if len(ids) < self.per_page:
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return
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params["page"] += 1
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class SankakuPostExtractor(SankakuExtractor):
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"""Extractor for single images from chan.sankakucomplex.com"""
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subcategory = "post"
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pattern = [r"(?:https?://)?chan\.sankakucomplex\.com/post/show/(\d+)"]
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test = [("https://chan.sankakucomplex.com/post/show/360451", {
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"content": "5e255713cbf0a8e0801dc423563c34d896bb9229",
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"count": 1,
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})]
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def __init__(self, match):
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SankakuExtractor.__init__(self)
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self.post_id = match.group(1)
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def get_posts(self):
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return (self.post_id,)
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