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349 lines
12 KiB
349 lines
12 KiB
# -*- coding: utf-8 -*-
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# Copyright 2014-2018 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 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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import requests
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class ExhentaiExtractor(Extractor):
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"""Base class for exhentai extractors"""
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category = "exhentai"
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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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archive_fmt = "{gallery_id}_{num}"
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cookiedomain = ".exhentai.org"
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cookienames = ("ipb_member_id", "ipb_pass_hash")
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root = "https://exhentai.org"
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def __init__(self):
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Extractor.__init__(self)
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self.original = self.config("original", True)
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self.wait_min = self.config("wait-min", 3)
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self.wait_max = self.config("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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self.session.headers["Referer"] = self.root + "/"
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def request(self, *args, **kwargs):
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response = Extractor.request(self, *args, **kwargs)
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if self._is_sadpanda(response):
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self.log.info("sadpanda.jpg")
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raise exception.AuthorizationError()
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return response
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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 * 0.66, waittime * 1.33)
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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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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 not username:
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self.log.info("no username given; using e-hentai.org")
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self.root = "https://e-hentai.org"
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self.original = False
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return
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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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@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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url = "https://forums.e-hentai.org/index.php?act=Login&CODE=01"
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data = {
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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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headers = {
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"Referer": "https://e-hentai.org/bounce_login.php?b=d&bt=1-1"
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}
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response = self.request(url, method="POST", data=data, headers=headers)
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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 self.cookienames}
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@staticmethod
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def _is_sadpanda(response):
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"""Return True if the response object contains a sad panda"""
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return (
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response.headers.get("Content-Length") == "9615" and
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"sadpanda.jpg" in response.headers.get("Content-Disposition", "")
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)
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class ExhentaiGalleryExtractor(ExhentaiExtractor):
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"""Extractor for image galleries from exhentai.org"""
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subcategory = "gallery"
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pattern = [r"(?:https?://)?(g\.e-|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": "15b755fd3e2c710d7fd7ff112a5cdbf4333201b2",
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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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("https://e-hentai.org/g/960460/4f0e369d82/", None),
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("https://g.e-hentai.org/g/960460/4f0e369d82/", None),
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]
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def __init__(self, match):
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ExhentaiExtractor.__init__(self)
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self.key = {}
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self.count = 0
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self.version, self.gid, self.token = match.groups()
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self.gid = text.parse_int(self.gid)
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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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url = "{}/g/{}/{}/".format(self.root, self.gid, self.token)
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response = self.request(url, expect=range(400, 500))
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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(("Key missing", "Gallery 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 = 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(1.5)
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yield Message.Url, url, data
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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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("gallery_size", '>File Size:</td><td class="gdt2">', '<'),
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("count" , '>Length:</td><td class="gdt2">', ' '),
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), values=data)
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data["lang"] = util.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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data["count"] = text.parse_int(data["count"])
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data["gallery_size"] = text.parse_bytes(
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data["gallery_size"].rstrip("Bb"))
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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(self.root + "/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" , 'hentai.org/fullimg.php', '"'),
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("originfo", 'ownload original', '<'),
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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 = self.root + "/fullimg.php" + part
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info = self._parse_original_info(data["originfo"])
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else:
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url = data["url"]
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info = self._parse_image_info(url)
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info["num"] = 1
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info["image_token"] = data["startkey"]
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return url, text.nameext_from_url(data["url"], info)
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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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api_url = self.root + "/api.php"
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nextkey = self.key["next"]
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request = {
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"method" : "showpage",
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"gid" : 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(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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data = self._parse_original_info(
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text.extract(page["i7"], "ownload original", "<", pos)[0]
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)
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else:
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url = imgurl
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data = self._parse_image_info(url)
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data["num"] = request["page"]
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data["image_token"] = imgkey
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yield url, text.nameext_from_url(imgurl, data)
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request["imgkey"] = nextkey
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@staticmethod
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def _parse_image_info(url):
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parts = url.split("/")[4].split("-")
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return {
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"width": text.parse_int(parts[2]),
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"height": text.parse_int(parts[3]),
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"size": text.parse_int(parts[1]),
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}
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@staticmethod
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def _parse_original_info(info):
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parts = info.lstrip().split(" ")
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return {
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"width": text.parse_int(parts[0]),
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"height": text.parse_int(parts[2]),
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"size": text.parse_bytes(parts[3] + parts[4][0]),
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}
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class ExhentaiSearchExtractor(ExhentaiExtractor):
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"""Extractor for exhentai search results"""
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subcategory = "search"
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pattern = [r"(?:https?://)?(?:g\.e-|e-|ex)hentai\.org/?\?(.*)$"]
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test = [
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("https://exhentai.org/?f_search=touhou", None),
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("https://exhentai.org/?f_doujinshi=0&f_manga=0&f_artistcg=0"
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"&f_gamecg=0&f_western=0&f_non-h=1&f_imageset=0&f_cosplay=0"
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"&f_asianporn=0&f_misc=0&f_search=touhou&f_apply=Apply+Filter", None),
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]
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def __init__(self, match):
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ExhentaiExtractor.__init__(self)
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self.params = text.parse_query(match.group(1) or "")
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self.params["page"] = text.parse_int(self.params.get("page"))
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self.url = self.root
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def items(self):
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self.login()
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self.init()
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yield Message.Version, 1
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while True:
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page = self.request(self.url, params=self.params).text
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for row in text.extract_iter(page, '<tr class="gtr', '</tr>'):
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yield self._parse_row(row)
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if 'class="ptdd">><' in page or ">No hits found</p>" in page:
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return
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self.params["page"] += 1
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self.wait()
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def init(self):
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pass
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def _parse_row(self, row, extr=text.extract):
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"""Parse information of a single result row"""
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gtype, pos = extr(row, ' alt="', '"')
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date , pos = extr(row, 'nowrap">', '<', pos)
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url , pos = extr(row, ' class="it5"><a href="', '"', pos)
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title, pos = extr(row, '>', '<', pos)
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key , last = self._parse_last(row, pos)
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parts = url.rsplit("/", 3)
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return Message.Queue, url, {
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"type": gtype,
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"date": date,
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"gallery_id": text.parse_int(parts[1]),
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"gallery_token": parts[2],
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"title": text.unescape(title),
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key: last,
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}
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def _parse_last(self, row, pos):
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"""Parse the last column of a result row"""
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return "uploader", text.remove_html(
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text.extract(row, '<td class="itu">', '</td>', pos)[0])
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class ExhentaiFavoriteExtractor(ExhentaiSearchExtractor):
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"""Extractor for favorited exhentai galleries"""
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subcategory = "favorite"
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pattern = [r"(?:https?://)?(?:g\.e-|e-|ex)hentai\.org"
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r"/favorites\.php(?:\?(.*))?"]
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test = [
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("https://exhentai.org/favorites.php", None),
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("https://exhentai.org/favorites.php?favcat=1&f_search=touhou"
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"&f_apply=Search+Favorites", None),
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]
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def __init__(self, match):
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ExhentaiSearchExtractor.__init__(self, match)
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self.url = self.root + "/favorites.php"
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def init(self):
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# The first request to '/favorites.php' will return an empty list
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# if the 's' cookie isn't set (maybe on some other conditions as well),
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# so we make a "noop" request to get all the correct cookie values
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# and to get a filled favorite list on the next one.
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# TODO: proper cookie storage
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self.request(self.url)
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self.wait(1.5)
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def _parse_last(self, row, pos):
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return "date_favorited", text.extract(row, 'nowrap">', '<', pos)[0]
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