From 2af73069f74d68837d83d2032ea85c6dbe7c19c0 Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Thu, 2 May 2024 08:23:29 +0300
Subject: Delete a client's public key.

---
 gn_auth/auth/authorisation/users/admin/views.py | 69 +++++++++++++++++++++----
 gn_auth/templates/admin/view-oauth2-client.html |  3 +-
 2 files changed, 62 insertions(+), 10 deletions(-)

(limited to 'gn_auth')

diff --git a/gn_auth/auth/authorisation/users/admin/views.py b/gn_auth/auth/authorisation/users/admin/views.py
index 3aadf49..f004027 100644
--- a/gn_auth/auth/authorisation/users/admin/views.py
+++ b/gn_auth/auth/authorisation/users/admin/views.py
@@ -10,7 +10,7 @@ from dataclasses import asdict
 from urllib.parse import urlparse
 from datetime import datetime, timezone, timedelta
 
-from authlib.jose import JsonWebKey
+from authlib.jose import KeySet, JsonWebKey
 from email_validator import validate_email, EmailNotValidError
 from flask import (
     flash,
@@ -295,8 +295,62 @@ def register_client_public_key():
         with open(keypath, mode="w", encoding="utf8") as _kpth:
             _kpth.write(form["client_ssl_key"])
 
-        from gn_auth.debug import __pk__
-        with_db_connection(partial(save_client, the_client=OAuth2Client(
+    with_db_connection(partial(save_client, the_client=OAuth2Client(
+        client_id=_client.client_id,
+        client_secret=_client.client_secret,
+        client_id_issued_at=_client.client_id_issued_at,
+        client_secret_expires_at=_client.client_secret_expires_at,
+        client_metadata={
+            **_client.client_metadata,
+            "public_keys": list(set(
+                _client.client_metadata.get("public_keys", []) +
+                [str(keypath)]))},
+        user=_client.user)))
+    flash("Client key successfully registered.", "alert-success")
+    return view_client_uri
+
+
+@admin.route("/delete-client-public-key", methods=["POST"])
+@is_admin
+def delete_client_public_key():
+    """Delete a client's SSL key"""
+    form = request.form
+    admin_dashboard_uri = redirect(url_for("oauth2.admin.dashboard"))
+    view_client_uri = redirect(url_for("oauth2.admin.view_client",
+                                       client_id=form["client_id"]))
+    if not bool(form.get("client_id")):
+        flash("No client selected.", "alert-danger")
+        return admin_dashboard_uri
+
+    try:
+        _client = with_db_connection(partial(
+            oauth2_client, client_id=uuid.UUID(form["client_id"])))
+        if _client.is_nothing():
+            raise ValueError("No such client.")
+        _client = _client.value
+    except ValueError:
+        flash("Invalid client ID provided.", "alert-danger")
+        return admin_dashboard_uri
+
+    if form.get("ssl_key", None) is None:
+        flash("The key must be provided.", "alert-danger")
+        return view_client_uri
+
+    try:
+        def find_by_kid(keyset: KeySet, kid: str) -> JsonWebKey:
+            for key in keyset.keys:
+                if key.thumbprint() == kid:
+                    return key
+            raise ValueError('Invalid JSON Web Key Set')
+        _key = find_by_kid(_client.jwks, form.get("ssl_key"))
+    except ValueError:
+        flash("Could not delete: No such public key.", "alert-danger")
+        return view_client_uri
+
+    _keys = (_key for _key in _client.jwks.keys
+             if _key.thumbprint() != form["ssl_key"])
+    _keysdir = Path(app.config["CLIENTS_SSL_PUBLIC_KEYS_DIR"])
+    with_db_connection(partial(save_client, the_client=OAuth2Client(
             client_id=_client.client_id,
             client_secret=_client.client_secret,
             client_id_issued_at=_client.client_id_issued_at,
@@ -304,13 +358,10 @@ def register_client_public_key():
             client_metadata={
                 **_client.client_metadata,
                 "public_keys": list(set(
-                    _client.client_metadata.get("public_keys", []) +
-                    [str(keypath)]))},
+                    keysdir.joinpath(f"{_key.thumbprint()}.pem")
+                    for _key in _keys))},
             user=_client.user)))
-        flash("Client key successfully registered.", "alert-success")
-        return view_client_uri
-
-    flash("Client key already exists.", "alert-warning")
+    flash("Key deleted.", "alert-success")
     return view_client_uri
 
 
diff --git a/gn_auth/templates/admin/view-oauth2-client.html b/gn_auth/templates/admin/view-oauth2-client.html
index 80ef84a..f5b5422 100644
--- a/gn_auth/templates/admin/view-oauth2-client.html
+++ b/gn_auth/templates/admin/view-oauth2-client.html
@@ -85,7 +85,8 @@
     <tr>
       <td>{{sslkey.thumbprint()}}</td>
       <td>
-        <form>
+        <form method="POST"
+              action="{{url_for('oauth2.admin.delete_client_public_key')}}">
           <input type="hidden"
                  name="client_id"
                  value="{{client.client_id}}" />
-- 
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