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gallery-dl/gallery_dl/extractor/nhentai.py
2020-06-09 21:27:07 +02:00

136 lines
4.4 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2015-2019 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.
"""Extract images from https://nhentai.net/"""
from .common import GalleryExtractor, Extractor, Message
from .. import text, util
import collections
import json
class NhentaiBase():
"""Base class for nhentai extractors"""
category = "nhentai"
root = "https://nhentai.net"
media_url = "https://i.nhentai.net"
class NhentaiGalleryExtractor(NhentaiBase, GalleryExtractor):
"""Extractor for image galleries from nhentai.net"""
pattern = r"(?:https?://)?nhentai\.net(/g/(\d+))"
test = ("https://nhentai.net/g/147850/", {
"url": "5179dbf0f96af44005a0ff705a0ad64ac26547d0",
"keyword": {
"title" : r"re:\[Morris\] Amazon no Hiyaku \| Amazon Elixir",
"title_en" : str,
"title_ja" : str,
"gallery_id": 147850,
"media_id" : 867789,
"count" : 16,
"date" : 1446050915,
"scanlator" : "",
"artist" : ["morris"],
"group" : list,
"parody" : list,
"characters": list,
"tags" : list,
"type" : "manga",
"lang" : "en",
"language" : "English",
"width" : int,
"height" : int,
},
})
def __init__(self, match):
GalleryExtractor.__init__(self, match)
self.gallery_id = match.group(2)
self.data = None
def metadata(self, page):
self.data = data = json.loads(text.parse_unicode_escapes(text.extract(
page, 'JSON.parse("', '");')[0]))
title_en = data["title"].get("english", "")
title_ja = data["title"].get("japanese", "")
info = collections.defaultdict(list)
for tag in data["tags"]:
info[tag["type"]].append(tag["name"])
language = ""
for language in info["language"]:
if language != "translated":
language = language.capitalize()
break
return {
"title" : title_en or title_ja,
"title_en" : title_en,
"title_ja" : title_ja,
"gallery_id": data["id"],
"media_id" : text.parse_int(data["media_id"]),
"date" : data["upload_date"],
"scanlator" : data["scanlator"],
"artist" : info["artist"],
"group" : info["group"],
"parody" : info["parody"],
"characters": info["character"],
"tags" : info["tag"],
"type" : info["category"][0] if info["category"] else "",
"lang" : util.language_to_code(language),
"language" : language,
}
def images(self, _):
ufmt = "{}/galleries/{}/{{}}.{{}}".format(
self.media_url, self.data["media_id"])
extdict = {"j": "jpg", "p": "png", "g": "gif"}
return [
(ufmt.format(num, extdict.get(img["t"], "jpg")), {
"width": img["w"], "height": img["h"],
})
for num, img in enumerate(self.data["images"]["pages"], 1)
]
class NhentaiSearchExtractor(NhentaiBase, Extractor):
"""Extractor for nhentai search results"""
category = "nhentai"
subcategory = "search"
pattern = r"(?:https?://)?nhentai\.net/search/?\?([^#]+)"
test = ("https://nhentai.net/search/?q=touhou", {
"pattern": NhentaiGalleryExtractor.pattern,
"count": 30,
"range": "1-30",
})
def __init__(self, match):
Extractor.__init__(self, match)
self.params = text.parse_query(match.group(1))
def items(self):
yield Message.Version, 1
data = {"_extractor": NhentaiGalleryExtractor}
for gallery_id in self._pagination(self.params):
url = "{}/g/{}/".format(self.root, gallery_id)
yield Message.Queue, url, data
def _pagination(self, params):
url = "{}/search/".format(self.root)
params["page"] = text.parse_int(params.get("page"), 1)
while True:
page = self.request(url, params=params).text
yield from text.extract_iter(page, 'href="/g/', '/')
if 'class="next"' not in page:
return
params["page"] += 1