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gallery-dl/gallery_dl/extractor/exhentai.py
Mike Fährmann 3ebb174f2c
add missing extractor info when spawning new ones (fixes #1051)
Not having this information causes the blacklist/whitelist logic to
trigger and prevents things from functioning as intended when using
default settings.

Fixes issues for 8muses, deviantart, exhentai, and mangoxo.
2020-10-08 14:34:53 +02:00

430 lines
15 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2014-2020 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://e-hentai.org/ and https://exhentai.org/"""
from .common import Extractor, Message
from .. import text, util, exception
from ..cache import cache
import itertools
import random
import time
import math
BASE_PATTERN = r"(?:https?://)?(e[x-]|g\.e-)hentai\.org"
class ExhentaiExtractor(Extractor):
"""Base class for exhentai extractors"""
category = "exhentai"
directory_fmt = ("{category}", "{gallery_id} {title[:247]}")
filename_fmt = (
"{gallery_id}_{num:>04}_{image_token}_{filename}.{extension}")
archive_fmt = "{gallery_id}_{num}"
cookienames = ("ipb_member_id", "ipb_pass_hash")
cookiedomain = ".exhentai.org"
root = "https://exhentai.org"
LIMIT = False
def __init__(self, match):
# allow calling 'self.config()' before 'Extractor.__init__()'
self._cfgpath = ("extractor", self.category, self.subcategory)
version = match.group(1)
domain = self.config("domain", "auto")
if domain == "auto":
domain = ("ex" if version == "ex" else "e-") + "hentai.org"
self.root = "https://" + domain
self.cookiedomain = "." + domain
Extractor.__init__(self, match)
self.limits = self.config("limits", True)
self.original = self.config("original", True)
self.wait_min = self.config("wait-min", 3)
self.wait_max = self.config("wait-max", 6)
if type(self.limits) is int:
self._limit_max = self.limits
self.limits = True
else:
self._limit_max = 0
self._remaining = 0
if self.wait_max < self.wait_min:
self.wait_max = self.wait_min
self.session.headers["Referer"] = self.root + "/"
if version != "ex":
self.session.cookies.set("nw", "1", domain=self.cookiedomain)
def request(self, *args, **kwargs):
response = Extractor.request(self, *args, **kwargs)
if self._is_sadpanda(response):
self.log.info("sadpanda.jpg")
raise exception.AuthorizationError()
return response
def wait(self, waittime=None):
"""Wait for a randomly chosen amount of seconds"""
if not waittime:
waittime = random.uniform(self.wait_min, self.wait_max)
else:
waittime = random.uniform(waittime * 0.66, waittime * 1.33)
time.sleep(waittime)
def login(self):
"""Login and set necessary cookies"""
if self.LIMIT:
raise exception.StopExtraction("Image limit reached!")
if self._check_cookies(self.cookienames):
return
username, password = self._get_auth_info()
if username:
self._update_cookies(self._login_impl(username, password))
else:
self.log.info("no username given; using e-hentai.org")
self.root = "https://e-hentai.org"
self.original = False
self.limits = False
self.session.cookies["nw"] = "1"
@cache(maxage=90*24*3600, keyarg=1)
def _login_impl(self, username, password):
self.log.info("Logging in as %s", username)
url = "https://forums.e-hentai.org/index.php?act=Login&CODE=01"
headers = {
"Referer": "https://e-hentai.org/bounce_login.php?b=d&bt=1-1",
}
data = {
"CookieDate": "1",
"b": "d",
"bt": "1-1",
"UserName": username,
"PassWord": password,
"ipb_login_submit": "Login!",
}
response = self.request(url, method="POST", headers=headers, data=data)
if b"You are now logged in as:" not in response.content:
raise exception.AuthenticationError()
return {c: response.cookies[c] for c in self.cookienames}
@staticmethod
def _is_sadpanda(response):
"""Return True if the response object contains a sad panda"""
return (
response.headers.get("Content-Length") == "9615" and
"sadpanda.jpg" in response.headers.get("Content-Disposition", "")
)
class ExhentaiGalleryExtractor(ExhentaiExtractor):
"""Extractor for image galleries from exhentai.org"""
subcategory = "gallery"
pattern = (BASE_PATTERN +
r"(?:/g/(\d+)/([\da-f]{10})"
r"|/s/([\da-f]{10})/(\d+)-(\d+))")
test = (
("https://exhentai.org/g/1200119/d55c44d3d0/", {
"keyword": "199db053b4ccab94463b459e1cfe079df8cdcdd1",
"content": "e9891a4c017ed0bb734cd1efba5cd03f594d31ff",
}),
("https://exhentai.org/g/960461/4f0e369d82/", {
"exception": exception.NotFoundError,
}),
("http://exhentai.org/g/962698/7f02358e00/", {
"exception": exception.AuthorizationError,
}),
("https://exhentai.org/s/f68367b4c8/1200119-3", {
"count": 2,
}),
("https://e-hentai.org/s/f68367b4c8/1200119-3", {
"count": 2,
}),
("https://g.e-hentai.org/g/1200119/d55c44d3d0/"),
)
def __init__(self, match):
ExhentaiExtractor.__init__(self, match)
self.key = {}
self.count = 0
self.gallery_id = text.parse_int(match.group(2) or match.group(5))
self.gallery_token = match.group(3)
self.image_token = match.group(4)
self.image_num = text.parse_int(match.group(6), 1)
def items(self):
self.login()
if self.gallery_token:
gpage = self._gallery_page()
self.image_token = text.extract(gpage, 'hentai.org/s/', '"')[0]
if not self.image_token:
self.log.error("Failed to extract initial image token")
self.log.debug("Page content:\n%s", gpage)
return
self.wait()
ipage = self._image_page()
else:
ipage = self._image_page()
part = text.extract(ipage, 'hentai.org/g/', '"')[0]
if not part:
self.log.error("Failed to extract gallery token")
self.log.debug("Page content:\n%s", ipage)
return
self.gallery_token = part.split("/")[1]
self.wait()
gpage = self._gallery_page()
data = self.get_metadata(gpage)
self.count = data["count"]
yield Message.Version, 1
yield Message.Directory, data
images = itertools.chain(
(self.image_from_page(ipage),), self.images_from_api())
for url, image in images:
data.update(image)
if self.limits:
self._check_limits(data)
if "/fullimg.php" in url:
data["extension"] = ""
self.wait(self.wait_max / 4)
yield Message.Url, url, data
def get_metadata(self, page):
"""Extract gallery metadata"""
extr = text.extract_from(page)
data = {
"gallery_id" : self.gallery_id,
"gallery_token": self.gallery_token,
"title" : text.unescape(extr('<h1 id="gn">', '</h1>')),
"title_jp" : text.unescape(extr('<h1 id="gj">', '</h1>')),
"date" : text.parse_datetime(extr(
'>Posted:</td><td class="gdt2">', '</td>'), "%Y-%m-%d %H:%M"),
"parent" : extr(
'>Parent:</td><td class="gdt2"><a href="', '"'),
"visible" : extr(
'>Visible:</td><td class="gdt2">', '<'),
"language" : extr(
'>Language:</td><td class="gdt2">', ' '),
"gallery_size" : text.parse_bytes(extr(
'>File Size:</td><td class="gdt2">', '<').rstrip("Bb")),
"count" : text.parse_int(extr(
'>Length:</td><td class="gdt2">', ' ')),
}
data["lang"] = util.language_to_code(data["language"])
data["tags"] = [
text.unquote(tag)
for tag in text.extract_iter(page, 'hentai.org/tag/', '"')
]
return data
def image_from_page(self, page):
"""Get image url and data from webpage"""
pos = page.index('<div id="i3"><a onclick="return load_image(') + 26
extr = text.extract_from(page, pos)
self.key["next"] = extr("'", "'")
iurl = extr('<img id="img" src="', '"')
orig = extr('hentai.org/fullimg.php', '"')
try:
if self.original and orig:
url = self.root + "/fullimg.php" + text.unescape(orig)
data = self._parse_original_info(extr('ownload original', '<'))
else:
url = iurl
data = self._parse_image_info(url)
except IndexError:
self.log.debug("Page content:\n%s", page)
raise exception.StopExtraction(
"Unable to parse image info for '%s'", url)
data["num"] = self.image_num
data["image_token"] = self.key["start"] = extr('var startkey="', '";')
self.key["show"] = extr('var showkey="', '";')
return url, text.nameext_from_url(iurl, data)
def images_from_api(self):
"""Get image url and data from api calls"""
api_url = self.root + "/api.php"
nextkey = self.key["next"]
request = {
"method" : "showpage",
"gid" : self.gallery_id,
"imgkey" : nextkey,
"showkey": self.key["show"],
}
for request["page"] in range(self.image_num + 1, self.count + 1):
self.wait()
page = self.request(api_url, method="POST", json=request).json()
imgkey = nextkey
nextkey, pos = text.extract(page["i3"], "'", "'")
imgurl , pos = text.extract(page["i3"], 'id="img" src="', '"', pos)
origurl, pos = text.extract(page["i7"], '<a href="', '"')
try:
if self.original and origurl:
url = text.unescape(origurl)
data = self._parse_original_info(text.extract(
page["i7"], "ownload original", "<", pos)[0])
else:
url = imgurl
data = self._parse_image_info(url)
except IndexError:
self.log.debug("Page content:\n%s", page)
raise exception.StopExtraction(
"Unable to parse image info for '%s'", url)
data["num"] = request["page"]
data["image_token"] = imgkey
yield url, text.nameext_from_url(imgurl, data)
request["imgkey"] = nextkey
def _gallery_page(self):
url = "{}/g/{}/{}/".format(
self.root, self.gallery_id, self.gallery_token)
response = self.request(url, fatal=False)
page = response.text
if response.status_code == 404 and "Gallery Not Available" in page:
raise exception.AuthorizationError()
if page.startswith(("Key missing", "Gallery not found")):
raise exception.NotFoundError("gallery")
if "hentai.org/mpv/" in page:
self.log.warning("Enabled Multi-Page Viewer is not supported")
return page
def _image_page(self):
url = "{}/s/{}/{}-{}".format(
self.root, self.image_token, self.gallery_id, self.image_num)
page = self.request(url, fatal=False).text
if page.startswith(("Invalid page", "Keep trying")):
raise exception.NotFoundError("image page")
return page
def _check_limits(self, data):
if not self._remaining or data["num"] % 20 == 0:
self._update_limits()
self._remaining -= data["cost"]
if self._remaining <= 0:
ExhentaiExtractor.LIMIT = True
url = "{}/s/{}/{}-{}".format(
self.root, data["image_token"], self.gallery_id, data["num"])
raise exception.StopExtraction(
"Image limit reached! Continue with '%s' "
"as URL after resetting it.", url)
def _update_limits(self):
url = "https://e-hentai.org/home.php"
cookies = {
cookie.name: cookie.value
for cookie in self.session.cookies
if cookie.domain == self.cookiedomain and cookie.name != "igneous"
}
page = self.request(url, cookies=cookies).text
current, pos = text.extract(page, "<strong>", "</strong>")
maximum, pos = text.extract(page, "<strong>", "</strong>", pos)
if self._limit_max:
maximum = self._limit_max
self.log.debug("Image Limits: %s/%s", current, maximum)
self._remaining = text.parse_int(maximum) - text.parse_int(current)
@staticmethod
def _parse_image_info(url):
parts = url.split("/")[4].split("-")
return {
"width": text.parse_int(parts[2]),
"height": text.parse_int(parts[3]),
"size": text.parse_int(parts[1]),
"cost": 1,
}
@staticmethod
def _parse_original_info(info):
parts = info.lstrip().split(" ")
size = text.parse_bytes(parts[3] + parts[4][0])
return {
"width": text.parse_int(parts[0]),
"height": text.parse_int(parts[2]),
"size": size,
# 1 initial point + 1 per 0.1 MB
"cost": 1 + math.ceil(size / 100000)
}
class ExhentaiSearchExtractor(ExhentaiExtractor):
"""Extractor for exhentai search results"""
subcategory = "search"
pattern = BASE_PATTERN + r"/?\?(.*)$"
test = (
("https://e-hentai.org/?f_search=touhou"),
(("https://exhentai.org/?f_doujinshi=0&f_manga=0&f_artistcg=0"
"&f_gamecg=0&f_western=0&f_non-h=1&f_imageset=0&f_cosplay=0"
"&f_asianporn=0&f_misc=0&f_search=touhou&f_apply=Apply+Filter"), {
"pattern": ExhentaiGalleryExtractor.pattern,
"range": "1-30",
"count": 30,
}),
)
def __init__(self, match):
ExhentaiExtractor.__init__(self, match)
self.params = text.parse_query(match.group(2))
self.params["page"] = text.parse_int(self.params.get("page"))
self.search_url = self.root
def items(self):
self.login()
yield Message.Version, 1
data = {"_extractor": ExhentaiGalleryExtractor}
while True:
last = None
page = self.request(self.search_url, params=self.params).text
for gallery in ExhentaiGalleryExtractor.pattern.finditer(page):
url = gallery.group(0)
if url == last:
continue
last = url
yield Message.Queue, url, data
if 'class="ptdd">&gt;<' in page or ">No hits found</p>" in page:
return
self.params["page"] += 1
self.wait()
class ExhentaiFavoriteExtractor(ExhentaiSearchExtractor):
"""Extractor for favorited exhentai galleries"""
subcategory = "favorite"
pattern = BASE_PATTERN + r"/favorites\.php(?:\?(.*))?"
test = (
("https://e-hentai.org/favorites.php", {
"count": 1,
"pattern": r"https?://e-hentai\.org/g/1200119/d55c44d3d0"
}),
("https://exhentai.org/favorites.php?favcat=1&f_search=touhou"
"&f_apply=Search+Favorites"),
)
def __init__(self, match):
ExhentaiSearchExtractor.__init__(self, match)
self.search_url = self.root + "/favorites.php"