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gallery-dl/gallery_dl/extractor/sankaku.py
2019-10-28 16:39:49 +01:00

300 lines
10 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2014-2019 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://chan.sankakucomplex.com/"""
from .common import Extractor, Message, SharedConfigMixin
from .. import text, util, exception
from ..cache import cache
import collections
import random
import time
import re
class SankakuExtractor(SharedConfigMixin, Extractor):
"""Base class for sankaku extractors"""
basecategory = "booru"
category = "sankaku"
filename_fmt = "{category}_{id}_{md5}.{extension}"
cookienames = ("login", "pass_hash")
cookiedomain = "chan.sankakucomplex.com"
subdomain = "chan"
def __init__(self, match):
Extractor.__init__(self, match)
self.root = "https://" + self.cookiedomain
self.logged_in = True
self.start_page = 1
self.start_post = 0
self.extags = self.config("tags", False)
self.wait_min = self.config("wait-min", 3.0)
self.wait_max = self.config("wait-max", 6.0)
if self.wait_max < self.wait_min:
self.wait_max = self.wait_min
def items(self):
self.login()
yield Message.Version, 1
data = self.get_metadata()
for post_id in util.advance(self.get_posts(), self.start_post):
self.wait()
post = self.get_post_data(post_id)
url = post["file_url"]
post.update(data)
text.nameext_from_url(url, post)
yield Message.Directory, post
yield Message.Url, url, post
def skip(self, num):
self.start_post += num
return num
def get_metadata(self):
"""Return general metadata"""
return {}
def get_posts(self):
"""Return an iterable containing all relevant post ids"""
def get_post_data(self, post_id, extr=text.extract):
"""Extract metadata of a single post"""
url = self.root + "/post/show/" + post_id
page = self.request(url, retries=10).text
tags , pos = extr(page, "<title>", " | ")
vavg , pos = extr(page, "itemprop=ratingValue>", "<", pos)
vcnt , pos = extr(page, "itemprop=reviewCount>", "<", pos)
_ , pos = extr(page, "Posted: <", "", pos)
created, pos = extr(page, ' title="', '"', pos)
rating = extr(page, "<li>Rating: ", "<", pos)[0]
file_url, pos = extr(page, '<li>Original: <a href="', '"', pos)
if file_url:
width , pos = extr(page, '>', 'x', pos)
height, pos = extr(page, '', ' ', pos)
else:
width , pos = extr(page, '<object width=', ' ', pos)
height, pos = extr(page, 'height=', '>', pos)
file_url = extr(page, '<embed src="', '"', pos)[0]
data = {
"id": text.parse_int(post_id),
"md5": file_url.rpartition("/")[2].partition(".")[0],
"tags": text.unescape(tags),
"vote_average": text.parse_float(vavg),
"vote_count": text.parse_int(vcnt),
"created_at": created,
"rating": (rating or "?")[0].lower(),
"file_url": "https:" + text.unescape(file_url),
"width": text.parse_int(width),
"height": text.parse_int(height),
}
if self.extags:
tags = collections.defaultdict(list)
tags_html = text.extract(page, '<ul id=tag-sidebar>', '</ul>')[0]
pattern = re.compile(r'tag-type-([^>]+)><a href="/\?tags=([^"]+)')
for tag_type, tag_name in pattern.findall(tags_html or ""):
tags[tag_type].append(text.unquote(tag_name))
for key, value in tags.items():
data["tags_" + key] = " ".join(value)
return data
def wait(self):
"""Wait for a randomly chosen amount of seconds"""
time.sleep(random.uniform(self.wait_min, self.wait_max))
def login(self):
"""Login and set necessary cookies"""
if self._check_cookies(self.cookienames):
return
username, password = self._get_auth_info()
if username:
cookies = self._login_impl((username, self.subdomain), password)
self._update_cookies(cookies)
else:
self.logged_in = False
@cache(maxage=90*24*3600, keyarg=1)
def _login_impl(self, usertuple, password):
username = usertuple[0]
self.log.info("Logging in as %s", username)
url = self.root + "/user/authenticate"
data = {
"url": "",
"user[name]": username,
"user[password]": password,
"commit": "Login",
}
response = self.request(url, method="POST", data=data)
if not response.history or response.url != self.root + "/user/home":
raise exception.AuthenticationError()
cookies = response.history[0].cookies
return {c: cookies[c] for c in self.cookienames}
class SankakuTagExtractor(SankakuExtractor):
"""Extractor for images from chan.sankakucomplex.com by search-tags"""
subcategory = "tag"
directory_fmt = ("{category}", "{search_tags}")
archive_fmt = "t_{search_tags}_{id}"
pattern = r"(?:https?://)?chan\.sankakucomplex\.com/\?([^#]*)"
test = (
("https://chan.sankakucomplex.com/?tags=bonocho", {
"count": 5,
"pattern": r"https://cs\.sankakucomplex\.com/data/[^/]{2}/[^/]{2}"
r"/[^/]{32}\.\w+\?e=\d+&m=[^&#]+",
}),
# respect 'page' query parameter
("https://chan.sankakucomplex.com/?tags=bonocho&page=2", {
"count": 0,
}),
# respect 'next' query parameter
("https://chan.sankakucomplex.com/?tags=bonocho&next=182284", {
"count": 1,
}),
# error on five or more tags
("https://chan.sankakucomplex.com/?tags=bonocho+a+b+c+d", {
"options": (("username", None),),
"exception": exception.StopExtraction,
}),
# match arbitrary query parameters
("https://chan.sankakucomplex.com"
"/?tags=marie_rose&page=98&next=3874906&commit=Search"),
)
per_page = 20
def __init__(self, match):
SankakuExtractor.__init__(self, match)
query = text.parse_query(match.group(1))
self.tags = text.unquote(query.get("tags", "").replace("+", " "))
self.start_page = text.parse_int(query.get("page"), 1)
self.next = text.parse_int(query.get("next"), 0)
def skip(self, num):
if self.next:
self.start_post += num
else:
pages, posts = divmod(num, self.per_page)
self.start_page += pages
self.start_post += posts
return num
def get_metadata(self):
if not self.next:
max_page = 50 if self.logged_in else 25
if self.start_page > max_page:
self.log.info("Traversing from page %d to page %d",
max_page, self.start_page)
self.start_post += self.per_page * (self.start_page - max_page)
self.start_page = max_page
tags = self.tags.split()
if not self.logged_in and len(tags) > 4:
raise exception.StopExtraction(
"Unauthenticated users cannot use more than 4 tags at once.")
return {"search_tags": " ".join(tags)}
def get_posts(self):
params = {"tags": self.tags}
if self.next:
params["next"] = self.next
else:
params["page"] = self.start_page
while True:
self.wait()
page = self.request(self.root, params=params, retries=10).text
pos = page.find("<div id=more-popular-posts-link>") + 1
ids = list(text.extract_iter(page, '" id=p', '>', pos))
if not ids:
return
yield from ids
next_qs = text.extract(page, 'next-page-url="/?', '"', pos)[0]
next_id = text.parse_query(next_qs).get("next")
# stop if the same "next" parameter occurs twice in a row (#265)
if "next" in params and params["next"] == next_id:
return
params["next"] = next_id or (text.parse_int(ids[-1]) - 1)
params["page"] = "2"
class SankakuPoolExtractor(SankakuExtractor):
"""Extractor for image-pools from chan.sankakucomplex.com"""
subcategory = "pool"
directory_fmt = ("{category}", "pool", "{pool}")
archive_fmt = "p_{pool}_{id}"
pattern = r"(?:https?://)?chan\.sankakucomplex\.com/pool/show/(\d+)"
test = ("https://chan.sankakucomplex.com/pool/show/90", {
"count": 5,
})
per_page = 24
def __init__(self, match):
SankakuExtractor.__init__(self, match)
self.pool_id = match.group(1)
def skip(self, num):
pages, posts = divmod(num, self.per_page)
self.start_page += pages
self.start_post += posts
return num
def get_metadata(self):
return {"pool": self.pool_id}
def get_posts(self):
url = self.root + "/pool/show/" + self.pool_id
params = {"page": self.start_page}
while True:
page = self.request(url, params=params, retries=10).text
ids = list(text.extract_iter(page, '" id=p', '>'))
yield from ids
if len(ids) < self.per_page:
return
params["page"] += 1
class SankakuPostExtractor(SankakuExtractor):
"""Extractor for single images from chan.sankakucomplex.com"""
subcategory = "post"
archive_fmt = "{id}"
pattern = r"(?:https?://)?chan\.sankakucomplex\.com/post/show/(\d+)"
test = ("https://chan.sankakucomplex.com/post/show/360451", {
"content": "5e255713cbf0a8e0801dc423563c34d896bb9229",
"options": (("tags", True),),
"keyword": {
"tags_artist": "bonocho",
"tags_studio": "dc_comics",
"tags_medium": "sketch copyright_name",
"tags_copyright": str,
"tags_character": str,
"tags_general": str,
},
})
def __init__(self, match):
SankakuExtractor.__init__(self, match)
self.post_id = match.group(1)
def get_posts(self):
return (self.post_id,)