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mj_controller/server/api/
routes.rs

1use super::*;
2
3pub(in crate::server) fn router(state: ServerState) -> Router<ServerState> {
4    Router::new()
5        .route("/events", get(events::events))
6        .route("/profiles/{profile_id}/config", get(profile_config))
7        .route(
8            "/sessions/{session_id}/config",
9            axum::routing::patch(set_config),
10        )
11        .route("/workspaces", get(list_workspaces).post(create_workspace))
12        .route("/sessions", get(list_sessions).post(start_session))
13        .route("/sessions/{session_id}", get(get_session))
14        .route(
15            "/sessions/{session_id}/subagents",
16            get(list_subagents).post(spawn_subagent),
17        )
18        .route("/sessions/{session_id}/prompt", post(prompt))
19        .route("/sessions/{session_id}/transcript", get(transcript))
20        .route("/sessions/{session_id}/usage", get(usage))
21        .route("/sessions/{session_id}/wait", post(wait))
22        .route("/sessions/{session_id}/close", post(close))
23        .route("/sessions/{session_id}/resume", post(resume))
24        .route("/sessions/{session_id}/cancel-turn", post(cancel_turn))
25        .route("/sessions/{session_id}/diff", get(diff))
26        .route(
27            "/sessions/{session_id}/files",
28            get(read_file)
29                .put(write_file)
30                .layer(axum::extract::DefaultBodyLimit::max(
31                    mj_checkpoint::archive::MAX_SESSION_FILE_BYTES as usize,
32                )),
33        )
34        .route("/sessions/{session_id}/elicitations", get(elicitations))
35        .route(
36            "/sessions/{session_id}/elicitations/{elicitation_id}",
37            post(respond_elicitation),
38        )
39        .route("/sessions/{session_id}/export", post(export))
40        .route("/wiki/search", get(wiki_search))
41        .route("/wiki/sessions/{wiki_id}/brief", get(wiki_brief))
42        .route("/wiki/sessions/{wiki_id}/hits", get(wiki_hits))
43        .route("/wiki/sessions/{wiki_id}/restore", post(wiki_restore))
44        .route_layer(axum::middleware::from_fn_with_state(
45            state,
46            require_api_auth,
47        ))
48        // Outside the auth layer so a 401 carries the version header too: a
49        // client must be able to tell "wrong token" from "wrong server".
50        .layer(axum::middleware::from_fn(api_response_headers))
51}
52
53/// Accept either the bearer token or the viewer's own session cookie.
54///
55/// The cookie is accepted because a browser already signed in to the viewer is
56/// the same user, and it makes the API reachable from the viewer page without
57/// handing the page a second secret.
58pub(super) async fn require_api_auth(
59    State(state): State<ServerState>,
60    request: HttpRequest<axum::body::Body>,
61    next: Next,
62) -> Result<Response, ApiFailure> {
63    let bearer = request
64        .headers()
65        .get(AUTHORIZATION)
66        .and_then(|value| value.to_str().ok())
67        .and_then(|value| value.strip_prefix("Bearer "))
68        .map(str::trim);
69    if bearer.is_some_and(|token| {
70        constant_time_eq(state.api_token.as_bytes(), token.as_bytes()) && !token.is_empty()
71    }) {
72        return Ok(next.run(request).await);
73    }
74    let cookie = request
75        .headers()
76        .get(COOKIE)
77        .and_then(|value| value.to_str().ok())
78        .and_then(|header| cookie_value(header, COOKIE_NAME));
79    if cookie.is_some_and(|value| session_cookie_valid(&state.cookie_key, value, now_unix())) {
80        return Ok(next.run(request).await);
81    }
82    Err(ApiFailure::new(
83        StatusCode::UNAUTHORIZED,
84        "supply the API token from the api-token file as a bearer token",
85    ))
86}
87
88/// Stamp the contract version and forbid caching on every API response,
89/// including failures.
90pub(super) async fn api_response_headers(
91    request: HttpRequest<axum::body::Body>,
92    next: Next,
93) -> Response {
94    let mut response = next.run(request).await;
95    let headers = response.headers_mut();
96    headers.insert(API_VERSION_HEADER, HeaderValue::from_static(API_VERSION));
97    headers.insert(CACHE_CONTROL, HeaderValue::from_static("no-store"));
98    response
99}
100
101// ---------------------------------------------------------------------------
102// Handlers
103// ---------------------------------------------------------------------------
104
105#[derive(Debug, Default, Clone, Serialize, Deserialize)]
106#[serde(deny_unknown_fields)]
107pub struct SessionListQuery {
108    pub workspace_id: Option<String>,
109}
110
111#[derive(Debug, Default, Deserialize)]
112#[serde(deny_unknown_fields)]
113pub(super) struct ProfileConfigQuery {
114    pub(super) model: Option<String>,
115}
116
117#[derive(Debug, Clone, Serialize, Deserialize)]
118#[serde(deny_unknown_fields)]
119pub struct SetConfigRequest {
120    pub key: String,
121    pub value: String,
122}