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110 lines
3.7 KiB
110 lines
3.7 KiB
# -*- coding: utf-8 -*-
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# Copyright 2015-2019 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://nhentai.net/"""
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from .common import Extractor, Message
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from .. import text
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import json
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class NHentaiExtractor(Extractor):
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"""Base class for nhentai extractors"""
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category = "nhentai"
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root = "https://nhentai.net"
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media_url = "https://i.nhentai.net"
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@staticmethod
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def transform_to_metadata(ginfo):
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"""Transform an nhentai API response into compatible metadata"""
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title_en = ginfo["title"].get("english", "")
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title_ja = ginfo["title"].get("japanese", "")
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return {
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"gallery_id": ginfo["id"],
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"upload_date": ginfo["upload_date"],
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"media_id": ginfo["media_id"],
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"scanlator": ginfo["scanlator"],
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"count": ginfo["num_pages"],
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"title": title_en or title_ja,
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"title_en": title_en,
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"title_ja": title_ja,
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}
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class NhentaiGalleryExtractor(NHentaiExtractor):
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"""Extractor for image galleries from nhentai.net"""
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subcategory = "gallery"
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directory_fmt = ("{category}", "{gallery_id} {title}")
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filename_fmt = "{category}_{gallery_id}_{num:>03}.{extension}"
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archive_fmt = "{gallery_id}_{num}"
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pattern = r"(?:https?://)?nhentai\.net/g/(\d+)"
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test = ("https://nhentai.net/g/147850/", {
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"url": "5179dbf0f96af44005a0ff705a0ad64ac26547d0",
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"keyword": "2f94976e657f3043a89997e22f4de8e1b22d9175",
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})
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def __init__(self, match):
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NHentaiExtractor.__init__(self, match)
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self.gid = match.group(1)
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def items(self):
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ginfo = self.get_gallery_info(self.gid)
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data = self.transform_to_metadata(ginfo)
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urlfmt = "{}/galleries/{}/{{}}.{{}}".format(
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self.media_url, data["media_id"])
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extdict = {"j": "jpg", "p": "png", "g": "gif"}
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yield Message.Version, 1
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yield Message.Directory, data
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for data["num"], image in enumerate(ginfo["images"]["pages"], 1):
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ext = extdict.get(image["t"], "jpg")
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data["width"] = image["w"]
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data["height"] = image["h"]
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data["extension"] = ext
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yield Message.Url, urlfmt.format(data["num"], ext), data
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def get_gallery_info(self, gallery_id):
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"""Extract and return info about a gallery by ID"""
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url = "{}/g/{}".format(self.root, gallery_id)
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page = self.request(url).text
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return json.loads(text.extract(page, "N.gallery(", ");")[0])
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class NhentaiSearchExtractor(NHentaiExtractor):
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"""Extractor for nhentai search results"""
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category = "nhentai"
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subcategory = "search"
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pattern = r"(?:https?://)?nhentai\.net/search/?\?([^#]+)"
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test = ("https://nhentai.net/search/?q=touhou", {
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"pattern": NhentaiGalleryExtractor.pattern,
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"count": 30,
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"range": "1-30",
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})
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def __init__(self, match):
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NHentaiExtractor.__init__(self, match)
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self.params = text.parse_query(match.group(1))
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def items(self):
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yield Message.Version, 1
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for gid in self._pagination(self.params):
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url = "{}/g/{}/".format(self.root, gid)
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yield Message.Queue, url, {}
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def _pagination(self, params):
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url = "{}/search/".format(self.root)
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params["page"] = text.parse_int(params.get("page"), 1)
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while True:
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page = self.request(url, params=params).text
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yield from text.extract_iter(page, 'href="/g/', '/')
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if 'class="next"' not in page:
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return
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params["page"] += 1
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