125 lines
5.2 KiB
Go
125 lines
5.2 KiB
Go
// Package web implements the nidus web UI: a small server-rendered
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// dashboard (templ + Tailwind, htmx for partial updates) that lets users
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// log in and manage sharing of their calendars and address books. It is
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// intentionally separate from the DAV Basic Auth (internal/auth) — the
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// web UI uses cookie-based sessions stored in internal/db.
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package web
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import (
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"log/slog"
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"net/http"
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"strings"
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"git.arnef.de/arnef/nidus/internal/config"
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"git.arnef.de/arnef/nidus/internal/db"
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"git.arnef.de/arnef/nidus/internal/icssub"
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"git.arnef.de/arnef/nidus/internal/store"
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)
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// Server holds the dependencies needed by the web UI handlers.
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type Server struct {
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cfg *config.Config
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store *store.Store
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dbase *db.DB
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logger *slog.Logger
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icsCache *icssub.Cache
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}
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// NewServer constructs a web UI Server.
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func NewServer(cfg *config.Config, st *store.Store, dbase *db.DB, logger *slog.Logger) *Server {
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return &Server{cfg: cfg, store: st, dbase: dbase, logger: logger, icsCache: icssub.NewCache(icssub.DefaultTTL)}
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}
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// Handler returns the http.Handler serving the web UI, mounted at "/web/"
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// by the caller (cmd/server). staticFS serves the compiled Tailwind CSS
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// and any other static assets. Since it's mounted with a path prefix,
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// the caller must wrap this handler in http.StripPrefix("/web", ...).
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func (s *Server) Handler(staticFS http.FileSystem) http.Handler {
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mux := http.NewServeMux()
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mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(staticFS)))
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mux.HandleFunc("/login", s.handleLogin)
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mux.HandleFunc("/logout", s.handleLogout)
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mux.HandleFunc("/", s.requireLogin(s.handleDashboard))
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mux.HandleFunc("/account", s.requireLogin(s.handleAccount))
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mux.HandleFunc("/account/profile", s.requireLogin(s.handleAccountProfile))
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mux.HandleFunc("/account/password", s.requireLogin(s.handleAccountPassword))
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mux.HandleFunc("/shares/calendar", s.requireLogin(s.handleCalendarShare))
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mux.HandleFunc("/shares/addressbook", s.requireLogin(s.handleAddressBookShare))
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mux.HandleFunc("/resources/calendar", s.requireLogin(s.handleCalendarResource))
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mux.HandleFunc("/resources/calendar/color", s.requireLogin(s.handleCalendarColor))
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mux.HandleFunc("/resources/birthdays/color", s.requireLogin(s.handleBirthdayColor))
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mux.HandleFunc("/resources/addressbook", s.requireLogin(s.handleAddressBookResource))
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mux.HandleFunc("/resources/ics", s.requireLogin(s.handleICSResource))
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mux.HandleFunc("/resources/ics/color", s.requireLogin(s.handleICSColor))
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mux.HandleFunc("/files/{path...}", s.requireLogin(s.handleFiles))
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mux.HandleFunc("/contacts", s.requireLogin(s.handleContactsHome))
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mux.HandleFunc("/contacts/{book}", s.requireLogin(s.handleContactsList))
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mux.HandleFunc("/contacts/{book}/new", s.requireLogin(s.handleContactNew))
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mux.HandleFunc("/contacts/{book}/import", s.requireLogin(s.handleContactImport))
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mux.HandleFunc("/contacts/{book}/export", s.requireLogin(s.handleContactExportAll))
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mux.HandleFunc("/contacts/{book}/{id}/edit", s.requireLogin(s.handleContactEdit))
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mux.HandleFunc("/contacts/{book}/{id}/delete", s.requireLogin(s.handleContactDelete))
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mux.HandleFunc("/contacts/{book}/{id}/export", s.requireLogin(s.handleContactExportOne))
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mux.HandleFunc("/calendar", s.requireLogin(s.handleCalendarMonth))
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mux.HandleFunc("/calendar/week", s.requireLogin(s.handleCalendarWeek))
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mux.HandleFunc("/calendar/new", s.requireLogin(s.handleEventNew))
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mux.HandleFunc("/calendar/{ref}/{id}", s.requireLogin(s.handleEventView))
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mux.HandleFunc("/calendar/{ref}/import", s.requireLogin(s.handleCalendarImport))
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mux.HandleFunc("/calendar/{ref}/export", s.requireLogin(s.handleCalendarExportAll))
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mux.HandleFunc("/calendar/{ref}/{id}/edit", s.requireLogin(s.handleEventEdit))
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mux.HandleFunc("/calendar/{ref}/{id}/delete", s.requireLogin(s.handleEventDelete))
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mux.HandleFunc("/calendar/{ref}/{id}/export", s.requireLogin(s.handleEventExportOne))
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return mux
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}
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// authenticate validates username/password against the database, mirroring
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// internal/auth's Basic Auth check.
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func (s *Server) authenticate(username, password string) bool {
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return s.dbase.VerifyPassword(username, password)
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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.MethodGet {
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renderLogin(w, "")
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return
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}
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if r.Method != http.MethodPost {
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w.Header().Set("Allow", "GET, POST")
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http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
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return
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}
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if err := r.ParseForm(); err != nil {
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renderLogin(w, "invalid form submission")
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return
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}
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username := strings.TrimSpace(r.PostForm.Get("username"))
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password := r.PostForm.Get("password")
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if !s.authenticate(username, password) {
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s.logger.Warn("web login failed", "username", username, "remote_addr", r.RemoteAddr)
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renderLogin(w, "invalid username or password")
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return
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}
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token, err := s.dbase.CreateSession(username)
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if err != nil {
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s.logger.Error("creating web session", "error", 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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s.setSessionCookie(w, token)
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http.Redirect(w, r, "/web/", http.StatusSeeOther)
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}
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func (s *Server) handleLogout(w http.ResponseWriter, r *http.Request) {
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if cookie, err := r.Cookie(sessionCookieName); err == nil {
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_ = s.dbase.DeleteSession(cookie.Value)
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}
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s.clearSessionCookie(w)
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http.Redirect(w, r, "/web/login", http.StatusSeeOther)
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}
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