Publish ITWorx Pulse source

internal/hostapi/handler.go

@@ -0,0 +1,46 @@
+package hostapi
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"time"
+
+	"github.com/itworx/pulse/internal/auth"
+	"github.com/itworx/pulse/internal/host"
+	"github.com/itworx/pulse/internal/problem"
+)
+
+type Handler struct{ Provider host.Provider }
+
+func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet || r.URL.Path != "/api/v1/host" {
+		http.NotFound(w, r)
+		return
+	}
+	if _, ok := auth.PrincipalFromContext(r.Context()); !ok {
+		problem.Write(w, r, http.StatusUnauthorized, "UNAUTHORIZED", "Authentication required", "Authentication is required to read host telemetry.", nil)
+		return
+	}
+	if err := r.Context().Err(); err != nil {
+		return
+	}
+	var snapshot host.Snapshot
+	var err error
+	if h.Provider == nil {
+		snapshot = host.UnknownSnapshot(time.Now().UTC(), "host", "agent", "source_unavailable")
+	} else {
+		snapshot, err = h.Provider.Snapshot(r.Context())
+	}
+	if err != nil {
+		if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) || errors.Is(r.Context().Err(), context.Canceled) {
+			return
+		}
+		problem.Write(w, r, http.StatusServiceUnavailable, "HOST_UNAVAILABLE", "Hosttelemetrie niet beschikbaar", "De hosttelemetrie kon niet worden gelezen.", nil)
+		return
+	}
+	w.Header().Set("Content-Type", "application/json")
+	w.Header().Set("Cache-Control", "private, max-age=5")
+	_ = json.NewEncoder(w).Encode(snapshot)
+}

internal/hostapi/handler_test.go

@@ -0,0 +1,51 @@
+package hostapi
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/itworx/pulse/internal/auth"
+	"github.com/itworx/pulse/internal/host"
+)
+
+type provider struct{ snapshot host.Snapshot }
+
+func (p provider) Snapshot(context.Context) (host.Snapshot, error) { return p.snapshot, nil }
+
+func authenticatedRequest(method, path string) *http.Request {
+	request := httptest.NewRequest(method, path, nil)
+	return request.WithContext(auth.WithPrincipal(request.Context(), auth.Principal{Subject: "viewer", Role: auth.RoleViewer}))
+}
+
+func TestHandlerRequiresAuthenticationAndExposesUnknownFallback(t *testing.T) {
+	unauthenticated := httptest.NewRecorder()
+	Handler{}.ServeHTTP(unauthenticated, httptest.NewRequest(http.MethodGet, "/api/v1/host", nil))
+	if unauthenticated.Code != http.StatusUnauthorized {
+		t.Fatalf("status=%d body=%s", unauthenticated.Code, unauthenticated.Body.String())
+	}
+
+	response := httptest.NewRecorder()
+	Handler{}.ServeHTTP(response, authenticatedRequest(http.MethodGet, "/api/v1/host"))
+	if response.Code != http.StatusOK || !strings.Contains(response.Body.String(), `"state":"unknown"`) {
+		t.Fatalf("status=%d body=%s", response.Code, response.Body.String())
+	}
+}
+
+func TestHandlerReturnsProviderSnapshotAndRejectsOtherRoutes(t *testing.T) {
+	snapshot := host.UnknownSnapshot(time.Date(2026, 8, 1, 12, 0, 0, 0, time.UTC), "agent-1", "agent", "fixture")
+	response := httptest.NewRecorder()
+	Handler{Provider: provider{snapshot: snapshot}}.ServeHTTP(response, authenticatedRequest(http.MethodGet, "/api/v1/host"))
+	if response.Code != http.StatusOK || !strings.Contains(response.Body.String(), `"id":"agent-1"`) {
+		t.Fatalf("status=%d body=%s", response.Code, response.Body.String())
+	}
+
+	other := httptest.NewRecorder()
+	Handler{}.ServeHTTP(other, authenticatedRequest(http.MethodPost, "/api/v1/host"))
+	if other.Code != http.StatusNotFound {
+		t.Fatalf("status=%d", other.Code)
+	}
+}