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gallery-dl/gallery_dl/extractor/oauth.py
2021-02-15 02:32:33 +01:00

422 lines
14 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2017-2021 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.
"""Utility classes to setup OAuth and link accounts to gallery-dl"""
from .common import Extractor, Message
from . import deviantart, flickr, mastodon, pixiv, reddit, smugmug, tumblr
from .. import text, oauth, util, config, exception
from ..cache import cache
import urllib.parse
import hashlib
import base64
REDIRECT_URI_LOCALHOST = "http://localhost:6414/"
REDIRECT_URI_HTTPS = "https://mikf.github.io/gallery-dl/oauth-redirect.html"
class OAuthBase(Extractor):
"""Base class for OAuth Helpers"""
category = "oauth"
redirect_uri = REDIRECT_URI_LOCALHOST
def __init__(self, match):
Extractor.__init__(self, match)
self.client = None
self.cache = config.get(("extractor", self.category), "cache", True)
def oauth_config(self, key, default=None):
return config.interpolate(
("extractor", self.subcategory), key, default)
def recv(self):
"""Open local HTTP server and recv callback parameters"""
import socket
print("Waiting for response. (Cancel with Ctrl+c)")
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server.bind(("localhost", self.config("port", 6414)))
server.listen(1)
# workaround for ctrl+c not working during server.accept on Windows
if util.WINDOWS:
server.settimeout(1.0)
while True:
try:
self.client = server.accept()[0]
break
except socket.timeout:
pass
server.close()
data = self.client.recv(1024).decode()
path = data.split(" ", 2)[1]
return text.parse_query(path.partition("?")[2])
def send(self, msg):
"""Send 'msg' to the socket opened in 'recv()'"""
print(msg)
self.client.send(b"HTTP/1.1 200 OK\r\n\r\n" + msg.encode())
self.client.close()
def open(self, url, params, recv=None):
"""Open 'url' in browser amd return response parameters"""
import webbrowser
url += "?" + urllib.parse.urlencode(params)
if not self.config("browser", True) or not webbrowser.open(url):
print("Please open this URL in your browser:")
print(url, end="\n\n", flush=True)
return (recv or self.recv)()
def _oauth1_authorization_flow(
self, request_token_url, authorize_url, access_token_url):
"""Perform the OAuth 1.0a authorization flow"""
# get a request token
params = {"oauth_callback": self.redirect_uri}
data = self.session.get(request_token_url, params=params).text
data = text.parse_query(data)
self.session.auth.token_secret = data["oauth_token_secret"]
# get the user's authorization
params = {"oauth_token": data["oauth_token"], "perms": "read"}
data = self.open(authorize_url, params)
# exchange the request token for an access token
data = self.session.get(access_token_url, params=data).text
data = text.parse_query(data)
token = data["oauth_token"]
token_secret = data["oauth_token_secret"]
# write to cache
if self.cache:
key = (self.subcategory, self.session.auth.consumer_key)
oauth._token_cache.update(key, (token, token_secret))
self.log.info("Writing tokens to cache")
# display tokens
self.send(self._generate_message(
("access-token", "access-token-secret"),
(token, token_secret),
))
def _oauth2_authorization_code_grant(
self, client_id, client_secret, auth_url, token_url, *,
scope="read", key="refresh_token", auth=True,
cache=None, instance=None):
"""Perform an OAuth2 authorization code grant"""
state = "gallery-dl_{}_{}".format(
self.subcategory,
oauth.nonce(8),
)
auth_params = {
"client_id" : client_id,
"response_type": "code",
"state" : state,
"redirect_uri" : self.redirect_uri,
"duration" : "permanent",
"scope" : scope,
}
# receive an authorization code
params = self.open(auth_url, auth_params)
# check authorization response
if state != params.get("state"):
self.send("'state' mismatch: expected {}, got {}.".format(
state, params.get("state")
))
return
if "error" in params:
self.send(params["error"])
return
# exchange the authorization code for a token
data = {
"grant_type" : "authorization_code",
"code" : params["code"],
"redirect_uri": self.redirect_uri,
}
if auth:
auth = (client_id, client_secret)
else:
auth = None
data["client_id"] = client_id
data["client_secret"] = client_secret
data = self.session.post(token_url, data=data, auth=auth).json()
# check token response
if "error" in data:
self.send(data["error"])
return
token = data[key]
token_name = key.replace("_", "-")
# write to cache
if self.cache and cache:
cache.update(instance or ("#" + str(client_id)), token)
self.log.info("Writing '%s' to cache", token_name)
# display token
self.send(self._generate_message(
(token_name,), (token,),
))
def _generate_message(self, names, values):
_vh, _va, _is, _it = (
("This value has", "this value", "is", "it")
if len(names) == 1 else
("These values have", "these values", "are", "them")
)
msg = "\nYour {} {}\n\n{}\n\n".format(
" and ".join("'" + n + "'" for n in names),
_is,
"\n".join(values),
)
opt = self.oauth_config(names[0])
if self.cache and (opt is None or opt == "cache"):
msg += _vh + " been cached and will automatically be used."
else:
msg += "Put " + _va + " into your configuration file as \n"
msg += " and\n".join(
"'extractor." + self.subcategory + "." + n + "'"
for n in names
)
if self.cache:
msg += (
"\nor set\n'extractor.{}.{}' to \"cache\""
.format(self.subcategory, names[0])
)
msg += "\nto use {}.".format(_it)
return msg
class OAuthDeviantart(OAuthBase):
subcategory = "deviantart"
pattern = "oauth:deviantart$"
redirect_uri = REDIRECT_URI_HTTPS
def items(self):
yield Message.Version, 1
self._oauth2_authorization_code_grant(
self.oauth_config(
"client-id", deviantart.DeviantartOAuthAPI.CLIENT_ID),
self.oauth_config(
"client-secret", deviantart.DeviantartOAuthAPI.CLIENT_SECRET),
"https://www.deviantart.com/oauth2/authorize",
"https://www.deviantart.com/oauth2/token",
scope="browse",
cache=deviantart._refresh_token_cache,
)
class OAuthFlickr(OAuthBase):
subcategory = "flickr"
pattern = "oauth:flickr$"
redirect_uri = REDIRECT_URI_HTTPS
def __init__(self, match):
OAuthBase.__init__(self, match)
self.session = oauth.OAuth1Session(
self.oauth_config("api-key", flickr.FlickrAPI.API_KEY),
self.oauth_config("api-secret", flickr.FlickrAPI.API_SECRET),
)
def items(self):
yield Message.Version, 1
self._oauth1_authorization_flow(
"https://www.flickr.com/services/oauth/request_token",
"https://www.flickr.com/services/oauth/authorize",
"https://www.flickr.com/services/oauth/access_token",
)
class OAuthReddit(OAuthBase):
subcategory = "reddit"
pattern = "oauth:reddit$"
def items(self):
yield Message.Version, 1
self.session.headers["User-Agent"] = reddit.RedditAPI.USER_AGENT
self._oauth2_authorization_code_grant(
self.oauth_config("client-id", reddit.RedditAPI.CLIENT_ID),
"",
"https://www.reddit.com/api/v1/authorize",
"https://www.reddit.com/api/v1/access_token",
scope="read history",
cache=reddit._refresh_token_cache,
)
class OAuthSmugmug(OAuthBase):
subcategory = "smugmug"
pattern = "oauth:smugmug$"
def __init__(self, match):
OAuthBase.__init__(self, match)
self.session = oauth.OAuth1Session(
self.oauth_config("api-key", smugmug.SmugmugAPI.API_KEY),
self.oauth_config("api-secret", smugmug.SmugmugAPI.API_SECRET),
)
def items(self):
yield Message.Version, 1
self._oauth1_authorization_flow(
"https://api.smugmug.com/services/oauth/1.0a/getRequestToken",
"https://api.smugmug.com/services/oauth/1.0a/authorize",
"https://api.smugmug.com/services/oauth/1.0a/getAccessToken",
)
class OAuthTumblr(OAuthBase):
subcategory = "tumblr"
pattern = "oauth:tumblr$"
def __init__(self, match):
OAuthBase.__init__(self, match)
self.session = oauth.OAuth1Session(
self.oauth_config("api-key", tumblr.TumblrAPI.API_KEY),
self.oauth_config("api-secret", tumblr.TumblrAPI.API_SECRET),
)
def items(self):
yield Message.Version, 1
self._oauth1_authorization_flow(
"https://www.tumblr.com/oauth/request_token",
"https://www.tumblr.com/oauth/authorize",
"https://www.tumblr.com/oauth/access_token",
)
class OAuthMastodon(OAuthBase):
subcategory = "mastodon"
pattern = "oauth:mastodon:(?:https?://)?([^/?#]+)"
def __init__(self, match):
OAuthBase.__init__(self, match)
self.instance = match.group(1)
def items(self):
yield Message.Version, 1
for application in mastodon.INSTANCES.values():
if self.instance == application["root"].partition("://")[2]:
break
else:
application = self._register(self.instance)
self._oauth2_authorization_code_grant(
application["client-id"],
application["client-secret"],
"https://{}/oauth/authorize".format(self.instance),
"https://{}/oauth/token".format(self.instance),
instance=self.instance,
key="access_token",
cache=mastodon._access_token_cache,
)
@cache(maxage=10*365*24*3600, keyarg=1)
def _register(self, instance):
self.log.info("Registering application for '%s'", instance)
url = "https://{}/api/v1/apps".format(instance)
data = {
"client_name": "gdl:" + oauth.nonce(8),
"redirect_uris": self.redirect_uri,
"scopes": "read",
}
data = self.session.post(url, data=data).json()
if "client_id" not in data or "client_secret" not in data:
raise exception.StopExtraction(
"Failed to register new application: '%s'", data)
data["client-id"] = data.pop("client_id")
data["client-secret"] = data.pop("client_secret")
self.log.info("client-id:\n%s", data["client-id"])
self.log.info("client-secret:\n%s", data["client-secret"])
return data
class OAuthPixiv(OAuthBase):
subcategory = "pixiv"
pattern = "oauth:pixiv$"
def items(self):
yield Message.Version, 1
code_verifier = util.generate_token(32)
digest = hashlib.sha256(code_verifier.encode("ascii")).digest()
code_challenge = base64.urlsafe_b64encode(
digest).rstrip(b"=").decode("ascii")
url = "https://app-api.pixiv.net/web/v1/login"
params = {
"code_challenge": code_challenge,
"code_challenge_method": "S256",
"client": "pixiv-android",
}
code = self.open(url, params, self._input)
url = "https://oauth.secure.pixiv.net/auth/token"
headers = {
"User-Agent": "PixivAndroidApp/5.0.234 (Android 11; Pixel 5)",
}
data = {
"client_id" : self.oauth_config(
"client-id" , pixiv.PixivAppAPI.CLIENT_ID),
"client_secret" : self.oauth_config(
"client-secret", pixiv.PixivAppAPI.CLIENT_SECRET),
"code" : code,
"code_verifier" : code_verifier,
"grant_type" : "authorization_code",
"include_policy": "true",
"redirect_uri" : "https://app-api.pixiv.net"
"/web/v1/users/auth/pixiv/callback",
}
data = self.session.post(url, headers=headers, data=data).json()
if "error" in data:
print(data)
if data["error"] == "invalid_request":
print("'code' expired, try again")
return
token = data["refresh_token"]
if self.cache:
username = self.oauth_config("username")
pixiv._refresh_token_cache.update(username, token)
self.log.info("Writing 'refresh-token' to cache")
print(self._generate_message(("refresh-token",), (token,)))
def _input(self):
print("""
1) Open your browser's Developer Tools (F12) and switch to the Network tab
2) Login
4) Select the last network monitor entry ('callback?state=...')
4) Copy its 'code' query parameter, paste it below, and press Enter
""")
code = input("code: ")
return code.rpartition("=")[2].strip()