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-rw-r--r--docs/authentication_and_authorisation/oauth2_clients.md64
-rw-r--r--gn3/auth/authentication/oauth2/server.py8
-rw-r--r--gn3/auth/authentication/oauth2/views.py73
-rw-r--r--gn3/errors.py9
-rw-r--r--gn3/templates/oauth2/oauth2_error.html16
5 files changed, 135 insertions, 35 deletions
diff --git a/docs/authentication_and_authorisation/oauth2_clients.md b/docs/authentication_and_authorisation/oauth2_clients.md
new file mode 100644
index 0000000..f9af8f9
--- /dev/null
+++ b/docs/authentication_and_authorisation/oauth2_clients.md
@@ -0,0 +1,64 @@
+# OAuth2
+
+The new authorisation system is made up of two layers:
+
+- Client authorisation
+- User authentication/authorisation
+
+This document will concern itself mostly with "Client Authorisation".
+
+## Client Authorisation
+
+The authentication/authorisation system will (probably) find use in the entire
+suite of applications that are under the Genenetwork umbrella.
+
+The relevant applications (as of 27 May 2023) are:
+
+- [Genenetwork 3](https://github.com/genenetwork/genenetwork3): Serves as both
+ the authorisation server and the API server.
+- [Genenetwork 2](https://github.com/genenetwork/genenetwork2): Will eventually
+ be the main user-facing UI making requests to GN3 for data and computational
+ requests.
+- [QC and Data Upload](https://gitlab.com/fredmanglis/gnqc_py): Provides a means
+ to upload new data into the Genenetwork database. It does perform some
+ quality-control on the data before upload. Currently, this application is not
+ available to the general public due to the potential to mess up the data. Once
+ the auth system has been running a while, and the major bugs quashed, this
+ will be integrated into the other system and allow users to upload their own
+ data.
+
+In this case, the GN2 and QC applications would be clients to GN3 (as the auth
+server), and will have specific scopes of access.
+
+As such, we need to register the clients that can access the authorisation
+server.
+
+If you try to access the authorisation server, or for that matter, the API
+server with a client that is not registered, you will receive an error message
+of the form:
+
+```json
+{
+ "error": "invalid_client",
+ "error_description": "No client found for the given CLIENT_ID and CLIENT_SECRET."
+}
+```
+
+### Registering a new OAuth2 Client
+
+- **TODO**: Implement client registration then provide docs here.
+
+**NOTES**:
+
+- Collect appropriate client data and register (provide means)
+- Get registered client's "CLIENT ID" and "CLIENT SECRET" values
+- Configure values on client
+
+## User Authentication/Authorisation
+
+A user will make use of (an) authorised client(s) (see 'Client Authorisation'
+section above) to access the authorisation and API servers.
+
+Once the user has authenticated (provided valid authentication credentials),
+they will be able to access the resources in the system according to the roles
+and privileges that they are authorised for.
diff --git a/gn3/auth/authentication/oauth2/server.py b/gn3/auth/authentication/oauth2/server.py
index e9946b4..7d7113a 100644
--- a/gn3/auth/authentication/oauth2/server.py
+++ b/gn3/auth/authentication/oauth2/server.py
@@ -4,6 +4,7 @@ import datetime
from typing import Callable
from flask import Flask, current_app
+from authlib.oauth2.rfc6749.errors import InvalidClientError
from authlib.integrations.flask_oauth2 import AuthorizationServer
# from authlib.oauth2.rfc7636 import CodeChallenge
@@ -24,7 +25,12 @@ def create_query_client_func() -> Callable:
# use current_app rather than passing the db_uri to avoid issues
# when config changes, e.g. while testing.
with db.connection(current_app.config["AUTH_DB"]) as conn:
- return client(conn, client_id).maybe(None, lambda clt: clt) # type: ignore[misc]
+ the_client = client(conn, client_id).maybe(
+ None, lambda clt: clt) # type: ignore[misc]
+ if bool(the_client):
+ return the_client
+ raise InvalidClientError(
+ "No client found for the given CLIENT_ID and CLIENT_SECRET.")
return __query_client__
diff --git a/gn3/auth/authentication/oauth2/views.py b/gn3/auth/authentication/oauth2/views.py
index e096002..f281295 100644
--- a/gn3/auth/authentication/oauth2/views.py
+++ b/gn3/auth/authentication/oauth2/views.py
@@ -2,6 +2,7 @@
import uuid
import traceback
+from authlib.oauth2.rfc6749.errors import InvalidClientError
from email_validator import validate_email, EmailNotValidError
from flask import (
flash,
@@ -38,42 +39,46 @@ def delete_client(client_id: uuid.UUID):
@auth.route("/authorise", methods=["GET", "POST"])
def authorise():
"""Authorise a user"""
- server = app.config["OAUTH2_SERVER"]
- client_id = uuid.UUID(request.args.get("client_id", str(uuid.uuid4())))
- client = server.query_client(client_id)
- if not bool(client):
- flash("Invalid OAuth2 client.", "alert-error")
- if request.method == "GET":
- client = server.query_client(request.args.get("client_id"))
- return render_template(
- "oauth2/authorise-user.html",
- client=client,
- scope=client.scope,
- response_type="code")
+ try:
+ server = app.config["OAUTH2_SERVER"]
+ client_id = uuid.UUID(request.args.get("client_id", str(uuid.uuid4())))
+ client = server.query_client(client_id)
+ if not bool(client):
+ flash("Invalid OAuth2 client.", "alert-error")
+ if request.method == "GET":
+ client = server.query_client(request.args.get("client_id"))
+ return render_template(
+ "oauth2/authorise-user.html",
+ client=client,
+ scope=client.scope,
+ response_type="code")
- form = request.form
- def __authorise__(conn: db.DbConnection) -> Response:
- email_passwd_msg = "Email or password is invalid!"
- redirect_response = redirect(url_for("oauth2.auth.authorise",
- client_id=client_id))
- try:
- email = validate_email(
- form.get("user:email"), check_deliverability=False)
- user = user_by_email(conn, email["email"])
- if valid_login(conn, user, form.get("user:password", "")):
- return server.create_authorization_response(request=request, grant_user=user)
- flash(email_passwd_msg, "alert-error")
- return redirect_response # type: ignore[return-value]
- except EmailNotValidError as _enve:
- app.logger.debug(traceback.format_exc())
- flash(email_passwd_msg, "alert-error")
- return redirect_response # type: ignore[return-value]
- except NotFoundError as _nfe:
- app.logger.debug(traceback.format_exc())
- flash(email_passwd_msg, "alert-error")
- return redirect_response # type: ignore[return-value]
+ form = request.form
+ def __authorise__(conn: db.DbConnection) -> Response:
+ email_passwd_msg = "Email or password is invalid!"
+ redirect_response = redirect(url_for("oauth2.auth.authorise",
+ client_id=client_id))
+ try:
+ email = validate_email(
+ form.get("user:email"), check_deliverability=False)
+ user = user_by_email(conn, email["email"])
+ if valid_login(conn, user, form.get("user:password", "")):
+ return server.create_authorization_response(request=request, grant_user=user)
+ flash(email_passwd_msg, "alert-error")
+ return redirect_response # type: ignore[return-value]
+ except EmailNotValidError as _enve:
+ app.logger.debug(traceback.format_exc())
+ flash(email_passwd_msg, "alert-error")
+ return redirect_response # type: ignore[return-value]
+ except NotFoundError as _nfe:
+ app.logger.debug(traceback.format_exc())
+ flash(email_passwd_msg, "alert-error")
+ return redirect_response # type: ignore[return-value]
- return with_db_connection(__authorise__)
+ return with_db_connection(__authorise__)
+ except InvalidClientError as ice:
+ return render_template(
+ "oauth2/oauth2_error.html", error=ice), ice.status_code
@auth.route("/token", methods=["POST"])
def token():
diff --git a/gn3/errors.py b/gn3/errors.py
index 4d41dc3..7ae07f4 100644
--- a/gn3/errors.py
+++ b/gn3/errors.py
@@ -1,5 +1,6 @@
"""Handle application level errors."""
from flask import Flask, jsonify, current_app
+from authlib.oauth2.rfc6749.errors import OAuth2Error
from gn3.auth.authorisation.errors import AuthorisationError
@@ -11,6 +12,14 @@ def handle_authorisation_error(exc: AuthorisationError):
"error_description": " :: ".join(exc.args)
}), exc.error_code
+def handle_oauth2_errors(exc: OAuth2Error):
+ current_app.logger.error(exc)
+ return jsonify({
+ "error": exc.error,
+ "error_description": exc.description,
+ }), exc.status_code
+
def register_error_handlers(app: Flask):
"""Register application-level error handlers."""
app.register_error_handler(AuthorisationError, handle_authorisation_error)
+ app.register_error_handler(OAuth2Error, handle_oauth2_errors)
diff --git a/gn3/templates/oauth2/oauth2_error.html b/gn3/templates/oauth2/oauth2_error.html
new file mode 100644
index 0000000..4edf9c4
--- /dev/null
+++ b/gn3/templates/oauth2/oauth2_error.html
@@ -0,0 +1,16 @@
+{%extends "base.html"%}
+
+{%block title%}OAuth2 Error{%endblock%}
+
+{%block content%}
+{{flash_messages()}}
+
+<h1>Error: {{error.status_code}}</h1>
+
+There was an error trying to fulfill your request:
+
+<p>
+ <strong>{{error.error}}</strong>:
+ {{error.description}}
+</p>
+{%endblock%}
generated by cgit v1.2.3 (git 2.44.0) at 2024-10-19 03:54:46 +0000