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dashboard: build same-origin /agent/<name>/ links when gateway is up (closes #842)

Browse source 
When `services.hyperhive.gateway.enable` is on (default), the c0re
NixOS module now sets `HIVE_GATEWAY_ENABLED=1` on the service env.
`/api/state` exposes the flag as `gateway_enabled`; the SW4RM tab's
container-row renderer flips three link sites (primary agent-name
link, favicon fetch, `container`-kind nav-strip links) from the
legacy `http://<host>:<port>/` direct TCP shape to same-origin
`/agent/<name>/` URLs — the gateway proxies them to the per-agent
harness via `agent-ports.json` or `agent-sockets.json` (#784 / #815).
Gateway-off deploys keep the direct TCP fallback so local-dev /
operator opt-out keeps working.

`forge`-kind nav-strip links still resolve against `:3000` (separate
sub-domain transition, tracked by `forge.behindGateway`);
`external`-kind links are already absolute.

Mirrors the `HIVE_MATRIX_GUI_ENABLED` env→snapshot-flag pattern.
Docs updated: `docs/web-ui.md::Container row` + new
`docs/gateway.md::Dashboard link shape` section.
This commit is contained in:
iris 2026-05-31 16:56:50 +02:00 • committed by mara
commit fbc41d42a6
5 changed files with 72 additions and 4 deletions
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18
hive-c0re/src/dashboard.rs
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@ -236,6 +236,17 @@ struct StateSnapshot {
/// chrome so the `M4TR1X →` tab doesn't flash when the GUI is off
/// (#607, #634).
matrix_gui_enabled: bool,
/// Whether `hive-gateway` is in front of this dashboard. Sourced
/// from `HIVE_GATEWAY_ENABLED` env var (set by the c0re NixOS
/// module when `services.hyperhive.gateway.enable` is on). When
/// true the dashboard frontend builds same-origin
/// `/agent/<name>/` links to the per-agent web UI (the gateway
/// proxies them via `agent-ports.json` + `agent-sockets.json`);
/// when false it falls back to direct
/// `http://<hostname>:<port>/` TCP links so gateway-off /
/// local-dev deploys keep working. See
/// `docs/gateway.md::Vhost map`.
gateway_enabled: bool,
}
/// `OpQuestion` + computed `question_refs` / `answer_refs`. Built
@ -435,6 +446,13 @@ async fn api_state(headers: HeaderMap, State(state): State<AppState>) -> axum::J
let s = v.to_string_lossy().to_ascii_lowercase();
matches!(s.as_str(), "1" | "true" | "yes")
}),
gateway_enabled: std::env::var_os("HIVE_GATEWAY_ENABLED").is_some_and(|v| {
// Same truthy-string parse as `matrix_gui_enabled`; the
// env var is set by the c0re NixOS module to the literal
// "1" when `services.hyperhive.gateway.enable` is on.
let s = v.to_string_lossy().to_ascii_lowercase();
matches!(s.as_str(), "1" | "true" | "yes")
}),
})
}