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gallery-dl/gallery_dl/extractor/oauth.py
2017-06-08 19:46:24 +02:00

126 lines
3.4 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2017 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"""
from .common import Extractor, Message
from . import reddit
import random
import socket
import string
import webbrowser
import urllib.parse
class OAuthBase(Extractor):
category = "oauth"
redirect_uri = "http://localhost:6414/"
def __init__(self):
Extractor.__init__(self)
self.client = None
def recv(self):
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", 6414))
server.listen(1)
self.client = server.accept()[0]
server.close()
data = self.client.recv(1024).decode()
path = data.split(" ", 2)[1]
query = path.partition("?")[2]
return {
key: urllib.parse.unquote(value)
for key, _, value in [
part.partition("=")
for part in query.split("&")
]
}
def send(self, msg):
print(msg)
self.client.send(b"HTTP/1.1 200 OK\r\n\r\n" + msg.encode())
self.client.close()
class OAuthReddit(OAuthBase):
subcategory = "reddit"
pattern = ["oauth:reddit$"]
def __init__(self, match):
OAuthBase.__init__(self)
self.session.headers["User-Agent"] = reddit.RedditAPI.USER_AGENT
self.client_id = reddit.RedditAPI.CLIENT_ID
self.state = "gallery-dl:{}:{}".format(
self.subcategory,
"".join(random.choice(string.ascii_letters) for _ in range(8)),
)
def items(self):
yield Message.Version, 1
params = {
"client_id": self.client_id,
"response_type": "code",
"state": self.state,
"redirect_uri": self.redirect_uri,
"duration": "permanent",
"scope": "read",
}
url = "https://www.reddit.com/api/v1/authorize?"
url += urllib.parse.urlencode(params)
if not webbrowser.open(url):
print("Please open this URL in your browser:")
print(url, end="\n\n", flush=True)
params = self.recv()
if self.state != params.get("state"):
self.send("'state' mismatch: expected {}, got {}.".format(
self.state, params.get("state")))
return
if "error" in params:
self.send(params["error"])
return
url = "https://www.reddit.com/api/v1/access_token"
data = {
"grant_type": "authorization_code",
"code": params["code"],
"redirect_uri": self.redirect_uri,
}
response = self.session.post(url, data=data, auth=(self.client_id, ""))
data = response.json()
if "error" in data:
self.send(data["error"])
else:
self.send(REDDIT_MSG_TEMPLATE.format(token=data["refresh_token"]))
REDDIT_MSG_TEMPLATE = """
Your Refresh Token is
{token}
Put this value into your configuration file as 'extractor.reddit.refesh-token'.
Example:
{{
"extractor": {{
"reddit": {{
"refresh-token": "{token}"
}}
}}
}}
"""