admin
77b5a4ce4e
- Hub service receives reports from customer controllers - SQLite store with 90-day retention and auto-prune - REST API: POST /api/v1/report, GET /api/v1/customers - Dark theme dashboard with status overview table - Customer detail page with system, storage, containers, backup, health - Bearer token auth for report ingest, bcrypt auth for dashboard - K8s manifest for felhom-system namespace (Deployment, Service, Ingress, PVC) - Dockerfile with multi-stage build Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
270 lines
6.7 KiB
Go
270 lines
6.7 KiB
Go
package web
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import (
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"encoding/json"
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"fmt"
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"html/template"
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"log"
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"math"
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"net/http"
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"strings"
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"time"
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"gitea.dooplex.hu/admin/felhom-hub/internal/store"
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"golang.org/x/crypto/bcrypt"
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)
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// Server handles the dashboard web UI.
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type Server struct {
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store *store.Store
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passwordHash string
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logger *log.Logger
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templates *template.Template
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staleThreshold time.Duration
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}
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// New creates a new web server.
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func New(store *store.Store, passwordHash string, staleThreshold time.Duration, logger *log.Logger) *Server {
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funcMap := template.FuncMap{
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"timeAgo": timeAgo,
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"statusColor": statusColor,
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"statusIcon": statusIcon,
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"formatFloat": func(f float64) string { return fmt.Sprintf("%.0f", f) },
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"json": func(v interface{}) template.JS {
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b, _ := json.Marshal(v)
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return template.JS(b)
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},
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}
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tmpl := template.Must(template.New("").Funcs(funcMap).ParseFS(templateFS, "templates/*.html"))
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return &Server{
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store: store,
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passwordHash: passwordHash,
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logger: logger,
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templates: tmpl,
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staleThreshold: staleThreshold,
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}
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}
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// ServeHTTP routes web requests.
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func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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path := r.URL.Path
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switch {
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case path == "/":
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s.handleDashboard(w, r)
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case path == "/style.css":
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s.handleCSS(w, r)
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case path == "/login":
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s.handleLogin(w, r)
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case strings.HasPrefix(path, "/customers/"):
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customerID := strings.TrimPrefix(path, "/customers/")
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s.handleCustomerDetail(w, r, customerID)
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default:
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http.NotFound(w, r)
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}
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}
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// RequireAuth wraps a handler with basic authentication.
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func (s *Server) RequireAuth(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// Skip auth if no password configured
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if s.passwordHash == "" {
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next.ServeHTTP(w, r)
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return
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}
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// Check session cookie
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if cookie, err := r.Cookie("hub_session"); err == nil && cookie.Value == "authenticated" {
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next.ServeHTTP(w, r)
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return
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}
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// Check basic auth
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_, password, ok := r.BasicAuth()
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if ok && bcrypt.CompareHashAndPassword([]byte(s.passwordHash), []byte(password)) == nil {
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next.ServeHTTP(w, r)
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return
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}
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// Show login page for browser requests
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if r.URL.Path == "/login" && r.Method == http.MethodPost {
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s.handleLogin(w, r)
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return
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}
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w.Header().Set("WWW-Authenticate", `Basic realm="Felhom Hub"`)
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http.Error(w, "Unauthorized", http.StatusUnauthorized)
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})
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}
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func (s *Server) handleLogin(w http.ResponseWriter, r *http.Request) {
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if r.Method == http.MethodPost {
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password := r.FormValue("password")
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if bcrypt.CompareHashAndPassword([]byte(s.passwordHash), []byte(password)) == nil {
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http.SetCookie(w, &http.Cookie{
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Name: "hub_session",
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Value: "authenticated",
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Path: "/",
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HttpOnly: true,
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MaxAge: 86400 * 7, // 7 days
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})
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http.Redirect(w, r, "/", http.StatusSeeOther)
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return
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}
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http.Error(w, "Invalid password", http.StatusUnauthorized)
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return
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}
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w.WriteHeader(http.StatusOK)
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w.Write([]byte(`<html><body><form method="post"><input type="password" name="password"><button>Login</button></form></body></html>`))
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}
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func (s *Server) handleDashboard(w http.ResponseWriter, r *http.Request) {
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customers, err := s.store.GetCustomers()
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if err != nil {
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s.logger.Printf("[ERROR] Dashboard: %v", err)
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http.Error(w, "Internal error", http.StatusInternalServerError)
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return
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}
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type dashboardCustomer struct {
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store.CustomerSummary
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OverallStatus string // "ok", "warn", "down"
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BackupAge string
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}
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var data []dashboardCustomer
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for _, c := range customers {
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dc := dashboardCustomer{CustomerSummary: c}
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// Determine overall status
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if c.TimeSinceReport > time.Hour {
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dc.OverallStatus = "down"
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} else if c.TimeSinceReport > 30*time.Minute || c.HealthStatus == "warn" {
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dc.OverallStatus = "warn"
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} else if c.HealthStatus == "fail" {
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dc.OverallStatus = "down"
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} else {
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dc.OverallStatus = "ok"
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}
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// Backup age
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if c.BackupLastSnapshot != nil {
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dc.BackupAge = timeAgo(*c.BackupLastSnapshot)
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} else {
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dc.BackupAge = "–"
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}
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data = append(data, dc)
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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if err := s.templates.ExecuteTemplate(w, "dashboard.html", data); err != nil {
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s.logger.Printf("[ERROR] Template render: %v", err)
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}
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}
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func (s *Server) handleCustomerDetail(w http.ResponseWriter, r *http.Request, customerID string) {
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customer, err := s.store.GetCustomer(customerID)
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if err != nil {
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s.logger.Printf("[ERROR] Customer detail: %v", err)
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http.Error(w, "Internal error", http.StatusInternalServerError)
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return
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}
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if customer == nil {
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http.NotFound(w, r)
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return
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}
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// Parse the full report
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var report map[string]interface{}
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json.Unmarshal([]byte(customer.ReportJSON), &report)
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// Get history (last 24h)
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history, _ := s.store.GetCustomerHistory(customerID, 24*time.Hour)
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type detailData struct {
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Customer *store.CustomerSummary
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Report map[string]interface{}
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History []store.CustomerSummary
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OverallStatus string
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}
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overallStatus := "ok"
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if customer.TimeSinceReport > time.Hour {
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overallStatus = "down"
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} else if customer.TimeSinceReport > 30*time.Minute || customer.HealthStatus == "warn" {
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overallStatus = "warn"
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} else if customer.HealthStatus == "fail" {
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overallStatus = "down"
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}
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data := detailData{
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Customer: customer,
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Report: report,
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History: history,
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OverallStatus: overallStatus,
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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if err := s.templates.ExecuteTemplate(w, "customer.html", data); err != nil {
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s.logger.Printf("[ERROR] Template render: %v", err)
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}
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}
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func (s *Server) handleCSS(w http.ResponseWriter, r *http.Request) {
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data, err := templateFS.ReadFile("templates/style.css")
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if err != nil {
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http.NotFound(w, r)
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return
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}
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w.Header().Set("Content-Type", "text/css")
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w.Header().Set("Cache-Control", "public, max-age=3600")
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w.Write(data)
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}
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func timeAgo(t time.Time) string {
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d := time.Since(t)
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if d < time.Minute {
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return "just now"
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}
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if d < time.Hour {
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m := int(math.Round(d.Minutes()))
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return fmt.Sprintf("%d min ago", m)
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}
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if d < 24*time.Hour {
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h := int(math.Round(d.Hours()))
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return fmt.Sprintf("%dh ago", h)
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}
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days := int(d.Hours() / 24)
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return fmt.Sprintf("%dd ago", days)
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}
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func statusColor(status string) string {
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switch status {
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case "ok":
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return "#4ade80" // green
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case "warn":
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return "#facc15" // yellow
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case "down", "fail":
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return "#f87171" // red
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default:
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return "#94a3b8" // gray
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}
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}
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func statusIcon(status string) string {
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switch status {
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case "ok":
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return "🟢" // green circle
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case "warn":
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return "🟡" // yellow circle
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case "down", "fail":
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return "🔴" // red circle
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default:
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return "⚪" // white circle
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}
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}
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