issuerd 0.1.6

Issuerd: a horizontally scalable, modular IAM server implementing OIDC/OAuth2 (Keycloak-inspired), with embedded admin/account web consoles
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216

// SPDX-License-Identifier: Apache-2.0
// Copyright (C) 2026 Dmitry Andreev. <da@issuerd.org>
//
//! End-to-end semantics of the rendered userinfo response cache
//! (`issuerd_server::userinfo_cache`): identical bodies on repeat calls,
//! next-request visibility of user/definition changes, and the validity
//! gates (logout) that run above the cache on every request.

use crate::harness::TestHarness;

/// Password-grant token for the realm's confidential client.
async fn password_token(
    harness: &TestHarness,
    realm: &str,
    client_id: &str,
    client_secret: &str,
    scope: &str,
) -> serde_json::Value {
    let resp = harness
        .post_form(
            &format!("/realms/{realm}/protocol/openid-connect/token"),
            &[
                ("grant_type", "password"),
                ("client_id", client_id),
                ("client_secret", client_secret),
                ("username", "alice"),
                ("password", "password123"),
                ("scope", scope),
            ],
        )
        .await;
    assert_eq!(resp.status(), 200);
    let body = axum::body::to_bytes(resp.into_body(), usize::MAX).await.unwrap();
    serde_json::from_slice(&body).unwrap()
}

async fn userinfo(harness: &TestHarness, realm: &str, token: &str) -> (u16, serde_json::Value) {
    let resp = harness
        .get_auth(&format!("/realms/{realm}/protocol/openid-connect/userinfo"), token)
        .await;
    let status = resp.status().as_u16();
    let body = axum::body::to_bytes(resp.into_body(), usize::MAX).await.unwrap();
    let json = serde_json::from_slice(&body).unwrap_or(serde_json::Value::Null);
    (status, json)
}

#[tokio::test]
async fn repeat_userinfo_serves_identical_body() {
    let harness = TestHarness::new().await;
    harness.create_realm("ui-cache").await;
    let client = harness.create_client("ui-cache", false).await;
    harness.create_user("ui-cache", "alice", "password123").await;

    let tokens = password_token(
        &harness,
        "ui-cache",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid profile",
    )
    .await;
    let token = tokens["access_token"].as_str().unwrap();

    let (s1, body1) = userinfo(&harness, "ui-cache", token).await;
    let (s2, body2) = userinfo(&harness, "ui-cache", token).await;
    assert_eq!((s1, s2), (200, 200));
    assert_eq!(body1, body2, "cached body must be byte-identical");
    assert_eq!(body1["given_name"], "Test", "profile scope maps first_name");
}

#[tokio::test]
async fn user_change_is_visible_on_the_next_request() {
    let harness = TestHarness::new().await;
    let realm = harness.create_realm("ui-cache-edit").await;
    let client = harness.create_client("ui-cache-edit", false).await;
    let user = harness.create_user("ui-cache-edit", "alice", "password123").await;

    let tokens = password_token(
        &harness,
        "ui-cache-edit",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid profile",
    )
    .await;
    let token = tokens["access_token"].as_str().unwrap();

    let (_, body) = userinfo(&harness, "ui-cache-edit", token).await;
    assert_eq!(body["given_name"], "Test");
    // Second call populates + serves the rendered-response cache entry.
    let (_, body) = userinfo(&harness, "ui-cache-edit", token).await;
    assert_eq!(body["given_name"], "Test");

    // Direct storage mutation + the documented invalidation helper (the
    // AGENTS.md contract for tests bypassing the admin API).
    let mut renamed = user.clone();
    renamed.first_name = Some(issuerd_core::DisplayName::new("Changed").unwrap());
    harness.storage.update_user(&realm.id, &renamed).await.unwrap();
    issuerd_cluster::invalidate::invalidate_user_claims(
        harness.cache.as_ref(),
        &realm.id,
        &user.id,
    )
    .await;

    let (status, body) = userinfo(&harness, "ui-cache-edit", token).await;
    assert_eq!(status, 200);
    assert_eq!(body["given_name"], "Changed", "edit must be visible on the next request");
}

#[tokio::test]
async fn definition_change_epoch_bump_rebuilds_immediately() {
    let harness = TestHarness::new().await;
    let realm = harness.create_realm("ui-cache-epoch").await;
    let client = harness.create_client("ui-cache-epoch", false).await;
    harness.create_user("ui-cache-epoch", "alice", "password123").await;

    let tokens = password_token(
        &harness,
        "ui-cache-epoch",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid profile",
    )
    .await;
    let token = tokens["access_token"].as_str().unwrap();

    let (_, body1) = userinfo(&harness, "ui-cache-epoch", token).await;
    // Realm-wide definition change (role/scope/mapper CRUD) bumps the epoch.
    issuerd_cluster::invalidate::bump_claims_epoch(harness.cache.as_ref(), &realm.id).await;
    let (status, body2) = userinfo(&harness, "ui-cache-epoch", token).await;
    assert_eq!(status, 200);
    assert_eq!(body1, body2, "rebuild after epoch bump serves the same content");
}

#[tokio::test]
async fn logout_invalidates_immediately_despite_response_cache() {
    let harness = TestHarness::new().await;
    harness.create_realm("ui-cache-logout").await;
    let client = harness.create_client("ui-cache-logout", false).await;
    harness.create_user("ui-cache-logout", "alice", "password123").await;

    let tokens = password_token(
        &harness,
        "ui-cache-logout",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid profile",
    )
    .await;
    let access = tokens["access_token"].as_str().unwrap();
    let refresh = tokens["refresh_token"].as_str().expect("refresh token");

    // Warm the response cache.
    assert_eq!(userinfo(&harness, "ui-cache-logout", access).await.0, 200);
    assert_eq!(userinfo(&harness, "ui-cache-logout", access).await.0, 200);

    // Logout via the RP-initiated endpoint (kills the session synchronously).
    let resp = harness
        .post_form(
            "/realms/ui-cache-logout/protocol/openid-connect/logout",
            &[
                ("client_id", &client.client_id),
                ("client_secret", client.secret.as_deref().unwrap()),
                ("refresh_token", refresh),
            ],
        )
        .await;
    assert!(resp.status() == 200 || resp.status() == 204, "logout: {}", resp.status());

    let (status, _) = userinfo(&harness, "ui-cache-logout", access).await;
    assert_eq!(status, 401, "a cached body must never outlive the session");
}

#[tokio::test]
async fn scope_sets_get_separate_cache_entries() {
    let harness = TestHarness::new().await;
    harness.create_realm("ui-cache-fp").await;
    let client = harness.create_client("ui-cache-fp", false).await;
    harness.create_user("ui-cache-fp", "alice", "password123").await;

    let full = password_token(
        &harness,
        "ui-cache-fp",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid profile",
    )
    .await;
    let narrow = password_token(
        &harness,
        "ui-cache-fp",
        &client.client_id,
        client.secret.as_deref().unwrap(),
        "openid",
    )
    .await;

    let (_, full_body) =
        userinfo(&harness, "ui-cache-fp", full["access_token"].as_str().unwrap()).await;
    let (_, narrow_body) =
        userinfo(&harness, "ui-cache-fp", narrow["access_token"].as_str().unwrap()).await;
    assert!(full_body.get("given_name").is_some());
    assert!(
        narrow_body.get("given_name").is_none(),
        "profile claims must not leak into the openid-only response: {narrow_body:?}"
    );

    // Repeat both: the cached entries stay distinct.
    let (_, full_body2) =
        userinfo(&harness, "ui-cache-fp", full["access_token"].as_str().unwrap()).await;
    let (_, narrow_body2) =
        userinfo(&harness, "ui-cache-fp", narrow["access_token"].as_str().unwrap()).await;
    assert_eq!(full_body, full_body2);
    assert_eq!(narrow_body, narrow_body2);
}