mirror of
https://github.com/mikf/gallery-dl.git
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222 lines
8.2 KiB
Python
222 lines
8.2 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014-2016 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 galleries at https://exhentai.org/"""
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from .common import Extractor, Message
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from .. import config, text, iso639_1, 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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import requests
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class ExhentaiGalleryExtractor(Extractor):
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"""Extractor for image-galleries from exhentai.org"""
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category = "exhentai"
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subcategory = "gallery"
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directory_fmt = ["{category}", "{gallery-id}"]
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filename_fmt = "{gallery-id}_{num:>04}_{image-token}_{name}.{extension}"
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pattern = [r"(?:https?://)?(?:g\.e-|ex)hentai\.org/g/(\d+)/([\da-f]{10})"]
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test = [
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("https://exhentai.org/g/960460/4f0e369d82/", {
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"keyword": "623f8c86c9fe38e964682dd4309b96922655b900",
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"content": "493d759de534355c9f55f8e365565b62411de146",
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}),
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("https://exhentai.org/g/960461/4f0e369d82/", {
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"exception": exception.NotFoundError,
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}),
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("http://exhentai.org/g/962698/7f02358e00/", {
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"exception": exception.AuthorizationError,
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}),
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]
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api_url = "https://exhentai.org/api.php"
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def __init__(self, match):
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Extractor.__init__(self)
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self.key = {}
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self.count = 0
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self.gid, self.token = match.groups()
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self.original = config.interpolate(
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("extractor", "exhentai", "download-original"), True)
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self.wait_min = config.interpolate(
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("extractor", "exhentai", "wait-min"), 3)
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self.wait_max = config.interpolate(
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("extractor", "exhentai", "wait-max"), 6)
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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.Headers, self.setup_headers()
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yield Message.Cookies, self.session.cookies
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url = "https://exhentai.org/g/{}/{}/".format(self.gid, self.token)
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response = self.session.get(url)
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page = response.text
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if response.status_code == 404 and "Gallery Not Available" in page:
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raise exception.AuthorizationError()
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if page.startswith(("\ufeffKey missing", "\ufeffGallery not found")):
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raise exception.NotFoundError("gallery")
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data = self.get_job_metadata(page)
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self.count = int(data["count"])
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yield Message.Directory, data
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for url, image in self.get_images(page):
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data.update(image)
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if "/fullimg.php" in url:
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data["extension"] = ""
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self.wait((1, 2))
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yield Message.Url, url, data
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def setup_headers(self):
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"""Initialize headers"""
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self.session.headers.update({
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"User-Agent": "Mozilla/5.0",
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"Accept": "text/html,application/xhtml+xml,"
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"application/xml;q=0.9,*/*;q=0.8",
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"Accept-Language": "en-US,en;q=0.5",
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"Referer": "https://exhentai.org/",
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})
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headers = self.session.headers.copy()
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headers["Accept"] = "image/png,image/*;q=0.8,*/*;q=0.5"
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return headers
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def get_job_metadata(self, page):
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"""Collect metadata for extractor-job"""
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data = {
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"gallery-id" : self.gid,
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"gallery-token": self.token,
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}
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text.extract_all(page, (
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("title" , '<h1 id="gn">', '</h1>'),
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("title_jp" , '<h1 id="gj">', '</h1>'),
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("date" , '>Posted:</td><td class="gdt2">', '</td>'),
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("language" , '>Language:</td><td class="gdt2">', ' '),
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("size" , '>File Size:</td><td class="gdt2">', ' '),
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("size-units", '', '<'),
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("count" , '>Length:</td><td class="gdt2">', ' '),
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), values=data)
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data["lang"] = iso639_1.language_to_code(data["language"])
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data["title"] = text.unescape(data["title"])
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data["title_jp"] = text.unescape(data["title_jp"])
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return data
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def get_images(self, page):
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"""Collect url and metadata for all images in this gallery"""
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part = text.extract(page, 'hentai.org/s/', '"')[0]
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yield self.image_from_page("https://exhentai.org/s/" + part)
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yield from self.images_from_api()
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def image_from_page(self, url):
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"""Get image url and data from webpage"""
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self.wait()
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page = self.request(url).text
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data = text.extract_all(page, (
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(None , '<div id="i3"><a onclick="return load_image(', ''),
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("nextkey" , "'", "'"),
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("url" , '<img id="img" src="', '"'),
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("origurl" , 'https://exhentai.org/fullimg.php', '"'),
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("startkey", 'var startkey="', '";'),
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("showkey" , 'var showkey="', '";'),
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))[0]
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self.key["start"] = data["startkey"]
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self.key["show"] = data["showkey"]
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self.key["next"] = data["nextkey"]
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if self.original and data["origurl"]:
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part = text.unescape(data["origurl"])
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url = "https://exhentai.org/fullimg.php" + part
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else:
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url = data["url"]
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return url, text.nameext_from_url(data["url"], {
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"num": 1,
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"image-token": data["startkey"],
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})
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def images_from_api(self):
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"""Get image url and data from api calls"""
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nextkey = self.key["next"]
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request = {
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"method" : "showpage",
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"gid" : int(self.gid),
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"imgkey" : nextkey,
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"showkey": self.key["show"],
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}
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for request["page"] in range(2, self.count + 1):
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while True:
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try:
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self.wait()
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page = self.session.post(self.api_url, json=request).json()
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break
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except requests.exceptions.ConnectionError:
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pass
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imgkey = nextkey
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nextkey, pos = text.extract(page["i3"], "'", "'")
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imgurl , pos = text.extract(page["i3"], 'id="img" src="', '"', pos)
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origurl, pos = text.extract(page["i7"], '<a href="', '"')
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if self.original and origurl:
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url = text.unescape(origurl)
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else:
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url = imgurl
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yield url, text.nameext_from_url(imgurl, {
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"num": request["page"],
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"image-token": imgkey
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})
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request["imgkey"] = nextkey
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def wait(self, waittime=None):
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"""Wait for a randomly chosen amount of seconds"""
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if not waittime:
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waittime = random.uniform(self.wait_min, self.wait_max)
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else:
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waittime = random.uniform(*waittime)
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time.sleep(waittime)
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def login(self):
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"""Login and set necessary cookies"""
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username = config.interpolate(("extractor", "exhentai", "username"))
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password = config.interpolate(("extractor", "exhentai", "password"))
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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=".exhentai.org", path="/")
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@cache(maxage=360*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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cnames = ["ipb_member_id", "ipb_pass_hash"]
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try:
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cookies = config.get(("extractor", "exhentai", "cookies"))
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if isinstance(cookies, dict) and all(c in cookies for c in cnames):
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return cookies
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except TypeError:
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pass
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url = "https://forums.e-hentai.org/index.php?act=Login&CODE=01"
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params = {
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"CookieDate": "1",
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"b": "d",
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"bt": "1-1",
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"UserName": username,
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"PassWord": password,
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"ipb_login_submit": "Login!",
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}
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referer = "http://e-hentai.org/bounce_login.php?b=d&bt=1-1"
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self.session.headers["Referer"] = referer
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response = self.session.post(url, data=params)
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if "You are now logged in as:" not in response.text:
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raise exception.AuthenticationError()
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return {c: response.cookies[c] for c in cnames}
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