mirror of
https://github.com/simple-login/app.git
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enable facebook login
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parent
8a6934e61e
commit
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@ -8,4 +8,5 @@ from .views import (
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forgot_password,
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forgot_password,
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github,
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github,
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google,
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google,
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facebook,
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)
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)
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@ -84,6 +84,11 @@
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class="btn btn-block btn-social btn-google">
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class="btn btn-block btn-social btn-google">
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<i class="fa fa-google"></i> Sign in with Google
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<i class="fa fa-google"></i> Sign in with Google
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</a>
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</a>
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<a href="{{ url_for('auth.facebook_login', next=next_url) }}"
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class="btn btn-block btn-social btn-facebook">
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<i class="fa fa-facebook"></i> Sign in with Facebook
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</a>
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</div>
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</div>
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</div>
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</div>
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@ -73,6 +73,12 @@
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class="btn btn-block btn-social btn-google">
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class="btn btn-block btn-social btn-google">
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<i class="fa fa-google"></i> Sign up with Google
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<i class="fa fa-google"></i> Sign up with Google
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</a>
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</a>
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<a href="{{ url_for('auth.facebook_login', next=next_url) }}"
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class="btn btn-block btn-social btn-facebook">
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<i class="fa fa-facebook"></i> Sign up with Facebook
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</a>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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127
app/auth/views/facebook.py
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127
app/auth/views/facebook.py
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@ -0,0 +1,127 @@
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import arrow
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from flask import request, session, redirect, url_for, flash
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from flask_login import login_user
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from requests_oauthlib import OAuth2Session
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from requests_oauthlib.compliance_fixes import facebook_compliance_fix
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from app.auth.base import auth_bp
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from app.auth.views.google import create_file_from_url
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from app.config import URL, FACEBOOK_CLIENT_ID, FACEBOOK_CLIENT_SECRET
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from app.email_utils import notify_admin
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from app.extensions import db
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from app.log import LOG
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from app.models import User
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from app.utils import random_string
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_authorization_base_url = "https://www.facebook.com/dialog/oauth"
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_token_url = "https://graph.facebook.com/oauth/access_token"
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_scope = ["email"]
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# need to set explicitly redirect_uri instead of leaving the lib to pre-fill redirect_uri
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# when served behind nginx, the redirect_uri is localhost... and not the real url
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_redirect_uri = URL + "/auth/facebook/callback"
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@auth_bp.route("/facebook/login")
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def facebook_login():
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# to avoid flask-login displaying the login error message
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session.pop("_flashes", None)
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next_url = request.args.get("next")
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# Facebook does not allow to append param to redirect_uri
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# we need to pass the next url by session
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if next_url:
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session["facebook_next_url"] = next_url
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facebook = OAuth2Session(
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FACEBOOK_CLIENT_ID, scope=_scope, redirect_uri=_redirect_uri
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)
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facebook = facebook_compliance_fix(facebook)
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authorization_url, state = facebook.authorization_url(_authorization_base_url)
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# State is used to prevent CSRF, keep this for later.
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session["oauth_state"] = state
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return redirect(authorization_url)
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@auth_bp.route("/facebook/callback")
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def facebook_callback():
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facebook = OAuth2Session(
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FACEBOOK_CLIENT_ID,
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state=session["oauth_state"],
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scope=_scope,
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redirect_uri=_redirect_uri,
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)
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facebook = facebook_compliance_fix(facebook)
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token = facebook.fetch_token(
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_token_url,
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client_secret=FACEBOOK_CLIENT_SECRET,
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authorization_response=request.url,
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)
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# Fetch a protected resource, i.e. user profile
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# {
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# "email": "abcd@gmail.com",
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# "id": "1234",
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# "name": "First Last",
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# "picture": {
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# "data": {
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# "url": "long_url"
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# }
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# }
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# }
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facebook_user_data = facebook.get(
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"https://graph.facebook.com/me?fields=id,name,email,picture{url}"
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).json()
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email = facebook_user_data["email"]
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user = User.get_by(email=email)
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picture_url = facebook_user_data.get("picture", {}).get("data", {}).get("url")
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if user:
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if picture_url and not user.profile_picture_id:
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LOG.d("set user profile picture to %s", picture_url)
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file = create_file_from_url(picture_url)
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user.profile_picture_id = file.id
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db.session.commit()
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login_user(user)
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# create user
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else:
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LOG.d("create facebook user with %s", facebook_user_data)
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user = User.create(email=email, name=facebook_user_data["name"])
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# set a random password
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user.set_password(random_string(20))
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user.activated = True
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if picture_url:
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LOG.d("set user profile picture to %s", picture_url)
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file = create_file_from_url(picture_url)
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user.profile_picture_id = file.id
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db.session.commit()
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login_user(user)
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flash(f"Welcome to SimpleLogin {user.name}!", "success")
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notify_admin(
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f"new user signs up {user.email}", f"{user.name} signs up at {arrow.now()}"
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)
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# The activation link contains the original page, for ex authorize page
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if "facebook_next_url" in session:
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next_url = session["facebook_next_url"]
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LOG.debug("redirect user to %s", next_url)
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# reset the next_url to avoid user getting redirected at each login :)
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session.pop("facebook_next_url", None)
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return redirect(next_url)
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else:
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LOG.debug("redirect user to dashboard")
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return redirect(url_for("dashboard.index"))
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