mirror of
https://github.com/simple-login/app.git
synced 2024-11-14 08:01:13 +01:00
108 lines
3.2 KiB
Python
108 lines
3.2 KiB
Python
import arrow
|
|
from flask import request, session, redirect, url_for, flash
|
|
from flask_login import login_user
|
|
from requests_oauthlib import OAuth2Session
|
|
|
|
from app.auth.base import auth_bp
|
|
from app.config import GITHUB_CLIENT_ID, GITHUB_CLIENT_SECRET, URL
|
|
from app.email_utils import notify_admin
|
|
from app.extensions import db
|
|
from app.log import LOG
|
|
from app.models import User
|
|
from app.utils import random_string, encode_url
|
|
|
|
_authorization_base_url = "https://github.com/login/oauth/authorize"
|
|
_token_url = "https://github.com/login/oauth/access_token"
|
|
|
|
# need to set explicitly redirect_uri instead of leaving the lib to pre-fill redirect_uri
|
|
# when served behind nginx, the redirect_uri is localhost... and not the real url
|
|
_redirect_uri = URL + "/auth/github/callback"
|
|
|
|
|
|
@auth_bp.route("/github/login")
|
|
def github_login():
|
|
next_url = request.args.get("next")
|
|
if next_url:
|
|
redirect_uri = _redirect_uri + "?next=" + encode_url(next_url)
|
|
else:
|
|
redirect_uri = _redirect_uri
|
|
|
|
github = OAuth2Session(
|
|
GITHUB_CLIENT_ID, scope=["user:email"], redirect_uri=redirect_uri
|
|
)
|
|
authorization_url, state = github.authorization_url(_authorization_base_url)
|
|
|
|
# State is used to prevent CSRF, keep this for later.
|
|
session["oauth_state"] = state
|
|
return redirect(authorization_url)
|
|
|
|
|
|
@auth_bp.route("/github/callback")
|
|
def github_callback():
|
|
github = OAuth2Session(
|
|
GITHUB_CLIENT_ID,
|
|
state=session["oauth_state"],
|
|
scope=["user:email"],
|
|
redirect_uri=_redirect_uri,
|
|
)
|
|
token = github.fetch_token(
|
|
_token_url,
|
|
client_secret=GITHUB_CLIENT_SECRET,
|
|
authorization_response=request.url,
|
|
)
|
|
|
|
# a dict with "name", "login"
|
|
github_user_data = github.get("https://api.github.com/user").json()
|
|
LOG.d("user login with github %s", github_user_data)
|
|
|
|
# return list of emails
|
|
# {
|
|
# 'email': 'abcd@gmail.com',
|
|
# 'primary': False,
|
|
# 'verified': True,
|
|
# 'visibility': None
|
|
# }
|
|
emails = github.get("https://api.github.com/user/emails").json()
|
|
|
|
# only take the primary email
|
|
email = None
|
|
|
|
for e in emails:
|
|
if e.get("verified") and e.get("primary"):
|
|
email = e.get("email")
|
|
break
|
|
|
|
if not email:
|
|
raise Exception("cannot get email for github user")
|
|
|
|
user = User.get_by(email=email)
|
|
|
|
if user:
|
|
login_user(user)
|
|
# create user
|
|
else:
|
|
LOG.d("create github user")
|
|
user = User.create(email=email, name=github_user_data["name"])
|
|
|
|
# set a random password
|
|
user.set_password(random_string(20))
|
|
|
|
user.activated = True
|
|
|
|
db.session.commit()
|
|
login_user(user)
|
|
|
|
flash(f"Welcome to SimpleLogin {user.name}!", "success")
|
|
|
|
notify_admin(
|
|
f"new user signs up {user.email}", f"{user.name} signs up at {arrow.now()}"
|
|
)
|
|
|
|
# The activation link contains the original page, for ex authorize page
|
|
if "next" in request.args:
|
|
next_url = request.args.get("next")
|
|
LOG.debug("redirect user to %s", next_url)
|
|
return redirect(next_url)
|
|
else:
|
|
LOG.debug("redirect user to dashboard")
|
|
return redirect(url_for("dashboard.index"))
|