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# -*- coding: utf-8 -*-
# Copyright 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.
"""Extractors for https://www.patreon.com/"""
from .common import Extractor, Message
from .. import text
from ..cache import memcache
import collections
import json
class PatreonExtractor(Extractor):
"""Base class for patreon extractors"""
category = "patreon"
root = "https://www.patreon.com"
directory_fmt = ("{category}", "{creator[full_name]}")
filename_fmt = "{id}_{title}_{num:>02}.{extension}"
archive_fmt = "{id}_{num}"
_warning = True
def items(self):
yield Message.Version, 1
if self._warning:
if "session_id" not in self.session.cookies:
self.log.warning("no 'session_id' cookie set")
PatreonExtractor._warning = False
for post in self.posts():
yield Message.Directory, post
ids = set()
post["num"] = 0
content = post.get("content")
postfile = post.get("post_file")
for image in post["images"]:
url = image.get("download_url")
if not url:
continue
ids.add(url.split("/")[-2])
name = image.get("file_name") or self._filename(url) or url
post["num"] += 1
post["type"] = "image"
yield Message.Url, url, text.nameext_from_url(name, post)
if postfile and postfile["url"].split("/")[-2] not in ids:
post["num"] += 1
post["type"] = "postfile"
text.nameext_from_url(postfile["name"], post)
yield Message.Url, postfile["url"], post
for attachment in post["attachments"]:
post["num"] += 1
post["type"] = "attachment"
text.nameext_from_url(attachment["name"], post)
yield Message.Url, attachment["url"], post
if content:
for url in text.extract_iter(content, 'src="', '"'):
post["num"] += 1
post["type"] = "content"
yield Message.Url, url, text.nameext_from_url(url, post)
def posts(self):
"""Return all relevant post objects"""
def _pagination(self, url):
headers = {"Referer": self.root}
while url:
posts = self.request(url, headers=headers).json()
if "included" in posts:
included = self._transform(posts["included"])
for post in posts["data"]:
yield self._process(post, included)
if "links" not in posts:
return
url = posts["links"].get("next")
def _process(self, post, included):
"""Process and extend a 'post' object"""
attr = post["attributes"]
attr["id"] = text.parse_int(post["id"])
attr["images"] = self._files(post, included, "images")
attr["attachments"] = self._files(post, included, "attachments")
attr["date"] = text.parse_datetime(
attr["published_at"], "%Y-%m-%dT%H:%M:%S.%f%z")
attr["creator"] = self._user(
post["relationships"]["user"]["links"]["related"])
return attr
@staticmethod
def _transform(included):
"""Transform 'included' into an easier to handle format"""
result = collections.defaultdict(dict)
for inc in included:
result[inc["type"]][inc["id"]] = inc["attributes"]
return result
@staticmethod
def _files(post, included, key):
"""Build a list of files"""
files = post["relationships"].get(key)
if files and files.get("data"):
return [
included[file["type"]][file["id"]]
for file in files["data"]
]
return []
@memcache(keyarg=1)
def _user(self, url):
"""Fetch user information"""
user = self.request(url).json()["data"]
attr = user["attributes"]
attr["id"] = user["id"]
attr["date"] = text.parse_datetime(
attr["created"], "%Y-%m-%dT%H:%M:%S.%f%z")
return attr
def _filename(self, url):
"""Fetch filename from its Content-Disposition header"""
response = self.request(url, method="HEAD", fatal=False)
cd = response.headers.get("Content-Disposition")
return text.extract(cd, 'filename="', '"')[0]
@staticmethod
def _build_url(endpoint, query):
return (
"https://www.patreon.com/api/" + endpoint +
"?include=user,images,attachments,user_defined_tags,campaign,poll."
"choices,poll.current_user_responses.user,poll.current_user_respon"
"ses.choice,poll.current_user_responses.poll,access_rules.tier.nul"
"l"
"&fields[post]=change_visibility_at,comment_count,content,current_"
"user_can_delete,current_user_can_view,current_user_has_liked,embe"
"d,image,is_paid,like_count,min_cents_pledged_to_view,post_file,pu"
"blished_at,patron_count,patreon_url,post_type,pledge_url,thumbnai"
"l_url,teaser_text,title,upgrade_url,url,was_posted_by_campaign_ow"
"ner"
"&fields[user]=image_url,full_name,url"
"&fields[campaign]=avatar_photo_url,earnings_visibility,is_nsfw,is"
"_monthly,name,url"
"&fields[access_rule]=access_rule_type,amount_cents" + query +
"&json-api-use-default-includes=false"
"&json-api-version=1.0"
)
class PatreonCreatorExtractor(PatreonExtractor):
"""Extractor for a creator's works"""
subcategory = "creator"
pattern = (r"(?:https?://)?(?:www\.)?patreon\.com"
r"/(?!(?:home|join|posts|login|signup)(?:$|[/?&#]))"
r"([^/?&#]+)/?")
test = ("https://www.patreon.com/koveliana", {
"range": "1-25",
"count": ">= 25",
"keyword": {
"attachments": list,
"comment_count": int,
"content": str,
"creator": dict,
"date": "type:datetime",
"id": int,
"images": list,
"like_count": int,
"post_type": str,
"published_at": str,
"title": str,
},
})
def __init__(self, match):
PatreonExtractor.__init__(self, match)
self.creator = match.group(1).lower()
def posts(self):
url = "{}/{}".format(self.root, self.creator)
page = self.request(url).text
campaign_id = text.extract(page, "/campaign/", "/")[0]
url = self._build_url("posts", (
"&sort=-published_at"
"&filter[is_draft]=false"
"&filter[contains_exclusive_posts]=true"
"&filter[campaign_id]=" + campaign_id
))
return self._pagination(url)
class PatreonUserExtractor(PatreonExtractor):
"""Extractor for media from creators supported by you"""
subcategory = "user"
pattern = r"(?:https?://)?(?:www\.)?patreon\.com/home$"
test = ("https://www.patreon.com/home",)
def posts(self):
url = self._build_url("stream", (
"&page[cursor]=null"
"&filter[is_following]=true"
))
return self._pagination(url)
class PatreonPostExtractor(PatreonExtractor):
"""Extractor for media from a single post"""
subcategory = "post"
pattern = (r"(?:https?://)?(?:www\.)?patreon\.com"
r"/posts/[^/?&#]*?(\d+)")
test = ("https://www.patreon.com/posts/precious-metal-23563293", {
"count": 4,
})
def __init__(self, match):
PatreonExtractor.__init__(self, match)
self.post_id = match.group(1)
def posts(self):
url = "{}/posts/{}".format(self.root, self.post_id)
page = self.request(url).text
data = text.extract(page, "window.patreon.bootstrap,", "\n});")[0]
post = json.loads(data + "}")["post"]
included = self._transform(post["included"])
return (self._process(post["data"], included),)
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