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gelbooru.py
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gelbooru.py
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# -*- coding: utf-8 -*-
# Copyright 2014-2023 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://gelbooru.com/"""
from .common import Extractor, Message
from . import gelbooru_v02
from .. import text, exception
import binascii
BASE_PATTERN = r"(?:https?://)?(?:www\.)?gelbooru\.com/(?:index\.php)?\?"
class GelbooruBase():
"""Base class for gelbooru extractors"""
category = "gelbooru"
basecategory = "booru"
root = "https://gelbooru.com"
offset = 0
def _api_request(self, params, key="post", log=False):
if "s" not in params:
params["s"] = "post"
params["api_key"] = self.api_key
params["user_id"] = self.user_id
url = self.root + "/index.php?page=dapi&q=index&json=1"
data = self.request(url, params=params).json()
if not key:
return data
try:
posts = data[key]
except KeyError:
if log:
self.log.error("Incomplete API response (missing '%s')", key)
self.log.debug("%s", data)
return []
if not isinstance(posts, list):
return (posts,)
return posts
def _pagination(self, params):
params["pid"] = self.page_start
params["limit"] = self.per_page
limit = self.per_page // 2
pid = False
if "tags" in params:
tags = params["tags"].split()
op = "<"
id = False
for tag in tags:
if tag.startswith("sort:"):
if tag == "sort:id:asc":
op = ">"
elif tag == "sort:id" or tag.startswith("sort:id:"):
op = "<"
else:
pid = True
elif tag.startswith("id:"):
id = True
if not pid:
if id:
tag = "id:" + op
tags = [t for t in tags if not t.startswith(tag)]
tags = "{} id:{}".format(" ".join(tags), op)
while True:
posts = self._api_request(params)
yield from posts
if len(posts) < limit:
return
if pid:
params["pid"] += 1
else:
if "pid" in params:
del params["pid"]
params["tags"] = tags + str(posts[-1]["id"])
def _pagination_html(self, params):
url = self.root + "/index.php"
params["pid"] = self.offset
data = {}
while True:
num_ids = 0
page = self.request(url, params=params).text
for data["id"] in text.extract_iter(page, '" id="p', '"'):
num_ids += 1
yield from self._api_request(data)
if num_ids < self.per_page:
return
params["pid"] += self.per_page
@staticmethod
def _file_url(post):
url = post["file_url"]
if url.endswith((".webm", ".mp4")):
md5 = post["md5"]
path = "/images/{}/{}/{}.webm".format(md5[0:2], md5[2:4], md5)
post["_fallback"] = GelbooruBase._video_fallback(path)
url = "https://img3.gelbooru.com" + path
return url
@staticmethod
def _video_fallback(path):
yield "https://img2.gelbooru.com" + path
yield "https://img1.gelbooru.com" + path
def _notes(self, post, page):
notes_data = text.extr(page, '<section id="notes"', '</section>')
if not notes_data:
return
post["notes"] = notes = []
extr = text.extract
for note in text.extract_iter(notes_data, '<article', '</article>'):
notes.append({
"width" : int(extr(note, 'data-width="', '"')[0]),
"height": int(extr(note, 'data-height="', '"')[0]),
"x" : int(extr(note, 'data-x="', '"')[0]),
"y" : int(extr(note, 'data-y="', '"')[0]),
"body" : extr(note, 'data-body="', '"')[0],
})
def _skip_offset(self, num):
self.offset += num
return num
class GelbooruTagExtractor(GelbooruBase,
gelbooru_v02.GelbooruV02TagExtractor):
"""Extractor for images from gelbooru.com based on search-tags"""
pattern = BASE_PATTERN + r"page=post&s=list&tags=([^&#]*)"
example = "https://gelbooru.com/index.php?page=post&s=list&tags=TAG"
class GelbooruPoolExtractor(GelbooruBase,
gelbooru_v02.GelbooruV02PoolExtractor):
"""Extractor for gelbooru pools"""
per_page = 45
pattern = BASE_PATTERN + r"page=pool&s=show&id=(\d+)"
example = "https://gelbooru.com/index.php?page=pool&s=show&id=12345"
skip = GelbooruBase._skip_offset
def metadata(self):
url = self.root + "/index.php"
self._params = {
"page": "pool",
"s" : "show",
"id" : self.pool_id,
}
page = self.request(url, params=self._params).text
name, pos = text.extract(page, "<h3>Now Viewing: ", "</h3>")
if not name:
raise exception.NotFoundError("pool")
return {
"pool": text.parse_int(self.pool_id),
"pool_name": text.unescape(name),
}
def posts(self):
return self._pagination_html(self._params)
class GelbooruFavoriteExtractor(GelbooruBase,
gelbooru_v02.GelbooruV02FavoriteExtractor):
"""Extractor for gelbooru favorites"""
per_page = 100
pattern = BASE_PATTERN + r"page=favorites&s=view&id=(\d+)"
example = "https://gelbooru.com/index.php?page=favorites&s=view&id=12345"
skip = GelbooruBase._skip_offset
def posts(self):
# get number of favorites
params = {
"s" : "favorite",
"id" : self.favorite_id,
"limit": "2",
}
data = self._api_request(params, None, True)
count = data["@attributes"]["count"]
self.log.debug("API reports %s favorite entries", count)
favs = data["favorite"]
try:
order = 1 if favs[0]["id"] < favs[1]["id"] else -1
except LookupError as exc:
self.log.debug(
"Error when determining API favorite order (%s: %s)",
exc.__class__.__name__, exc)
order = -1
else:
self.log.debug("API yields favorites in %sscending order",
"a" if order > 0 else "de")
order_favs = self.config("order-posts")
if order_favs and order_favs[0] in ("r", "a"):
self.log.debug("Returning them in reverse")
order = -order
if order < 0:
return self._pagination(params, count)
return self._pagination_reverse(params, count)
def _pagination(self, params, count):
if self.offset:
pnum, skip = divmod(self.offset, self.per_page)
else:
pnum = skip = 0
params["pid"] = pnum
params["limit"] = self.per_page
while True:
favs = self._api_request(params, "favorite")
if not favs:
return
if skip:
favs = favs[skip:]
skip = 0
for fav in favs:
for post in self._api_request({"id": fav["favorite"]}):
post["date_favorited"] = text.parse_timestamp(fav["added"])
yield post
params["pid"] += 1
def _pagination_reverse(self, params, count):
pnum, last = divmod(count-1, self.per_page)
if self.offset > last:
# page number change
self.offset -= last
diff, self.offset = divmod(self.offset-1, self.per_page)
pnum -= diff + 1
skip = self.offset
params["pid"] = pnum
params["limit"] = self.per_page
while True:
favs = self._api_request(params, "favorite")
favs.reverse()
if skip:
favs = favs[skip:]
skip = 0
for fav in favs:
for post in self._api_request({"id": fav["favorite"]}):
post["date_favorited"] = text.parse_timestamp(fav["added"])
yield post
params["pid"] -= 1
if params["pid"] < 0:
return
class GelbooruPostExtractor(GelbooruBase,
gelbooru_v02.GelbooruV02PostExtractor):
"""Extractor for single images from gelbooru.com"""
pattern = (BASE_PATTERN +
r"(?=(?:[^#]+&)?page=post(?:&|#|$))"
r"(?=(?:[^#]+&)?s=view(?:&|#|$))"
r"(?:[^#]+&)?id=(\d+)")
example = "https://gelbooru.com/index.php?page=post&s=view&id=12345"
class GelbooruRedirectExtractor(GelbooruBase, Extractor):
subcategory = "redirect"
pattern = (r"(?:https?://)?(?:www\.)?gelbooru\.com"
r"/redirect\.php\?s=([^&#]+)")
example = "https://gelbooru.com/redirect.php?s=BASE64"
def __init__(self, match):
Extractor.__init__(self, match)
self.url_base64 = match.group(1)
def items(self):
url = text.ensure_http_scheme(binascii.a2b_base64(
self.url_base64).decode())
data = {"_extractor": GelbooruPostExtractor}
yield Message.Queue, url, data