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https://github.com/simple-login/app.git
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372466ab06
- add __tablename__ for all models - use sa and orm instead of db - rollback all changes in tests - remove session in @app.teardown_appcontext
99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
from flask import request, jsonify
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from flask_cors import cross_origin
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from app.db import Session
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from app.jose_utils import make_id_token
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from app.log import LOG
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from app.models import Client, AuthorizationCode, OauthToken, ClientUser
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from app.oauth.base import oauth_bp
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from app.oauth.views.authorize import generate_access_token
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from app.oauth_models import Scope, get_response_types_from_str, ResponseType
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@oauth_bp.route("/token", methods=["POST", "GET"])
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@cross_origin()
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def token():
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"""
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Calls by client to exchange the access token given the authorization code.
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The client authentications using Basic Authentication.
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The form contains the following data:
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- grant_type: must be "authorization_code"
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- code: the code obtained in previous step
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"""
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# Basic authentication
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oauth_client_id = (
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request.authorization and request.authorization.username
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) or request.form.get("client_id")
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oauth_client_secret = (
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request.authorization and request.authorization.password
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) or request.form.get("client_secret")
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client = Client.filter_by(
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oauth_client_id=oauth_client_id, oauth_client_secret=oauth_client_secret
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).first()
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if not client:
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return jsonify(error="wrong client-id or client-secret"), 400
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# Get code from form data
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grant_type = request.form.get("grant_type")
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code = request.form.get("code")
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# sanity check
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if grant_type != "authorization_code":
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return jsonify(error="grant_type must be authorization_code"), 400
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auth_code: AuthorizationCode = AuthorizationCode.filter_by(code=code).first()
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if not auth_code:
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return jsonify(error=f"no such authorization code {code}"), 400
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elif auth_code.is_expired():
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AuthorizationCode.delete(auth_code.id)
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Session.commit()
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LOG.d("delete expired authorization code:%s", auth_code)
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return jsonify(error=f"{code} already expired"), 400
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if auth_code.client_id != client.id:
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return jsonify(error="are you sure this code belongs to you?"), 400
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LOG.d("Create Oauth token for user %s, client %s", auth_code.user, auth_code.client)
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# Create token
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oauth_token = OauthToken.create(
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client_id=auth_code.client_id,
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user_id=auth_code.user_id,
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scope=auth_code.scope,
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redirect_uri=auth_code.redirect_uri,
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access_token=generate_access_token(),
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response_type=auth_code.response_type,
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)
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client_user: ClientUser = ClientUser.get_by(
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client_id=auth_code.client_id, user_id=auth_code.user_id
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)
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user_data = client_user.get_user_info()
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res = {
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"access_token": oauth_token.access_token,
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"token_type": "Bearer",
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"expires_in": 3600,
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"scope": auth_code.scope,
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"user": user_data, # todo: remove this
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}
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if oauth_token.scope and Scope.OPENID.value in oauth_token.scope:
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res["id_token"] = make_id_token(client_user)
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# Also return id_token if the initial flow is "code,id_token"
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# cf https://medium.com/@darutk/diagrams-of-all-the-openid-connect-flows-6968e3990660
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response_types = get_response_types_from_str(auth_code.response_type)
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if ResponseType.ID_TOKEN in response_types or auth_code.scope == "openid":
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res["id_token"] = make_id_token(client_user, nonce=auth_code.nonce)
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# Auth code can be used only once
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AuthorizationCode.delete(auth_code.id)
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Session.commit()
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return jsonify(res)
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