initial commit

handler/logout_handler.go

@@ -0,0 +1,34 @@
+package handler
+
+import (
+	"net/http"
+	"time"
+	"uptimemonitor"
+)
+
+func (h *Handler) Logout() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		session, ok := r.Context().Value(sessionContextKey).(uptimemonitor.Session)
+		if !ok {
+			http.Redirect(w, r, "/login", http.StatusSeeOther)
+			http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusServiceUnavailable)
+			return
+		}
+
+		err := h.Store.RemoveSessionByID(r.Context(), session.ID)
+		if err != nil {
+			// todo: log
+		}
+
+		http.SetCookie(w, &http.Cookie{
+			Name:     "session",
+			Value:    "",
+			HttpOnly: true,
+			SameSite: http.SameSiteLaxMode,
+			Secure:   h.Secure,
+			Expires:  time.Now().Add(time.Hour * 24 * 30 * -1),
+		})
+
+		http.Redirect(w, r, "/login", http.StatusSeeOther)
+	}
+}