feat: WIP mail verification flow

api/pageRegisterValidate.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"github.com/go-chi/jwtauth/v5"
+	"net/http"
+	"time"
+)
+
+func GetRegisterValidatePage(w http.ResponseWriter, r *http.Request) {
+	queryVerificationCode := r.URL.Query().Get("c")
+	if queryVerificationCode == "" {
+		http.Redirect(w, r, "/register/pending", http.StatusSeeOther)
+		return
+	}
+
+	_, claims, _ := jwtauth.FromContext(r.Context())
+	userId, _ := claims["user_id"].(uint32)
+
+	user, _ := Container.GetUserUseCase.GetUser(userId)
+	errorMessage := ""
+
+	if user.VerificationCode != queryVerificationCode || user.VerificationExpiration.Before(time.Now()) {
+		errorMessage = "Verification link is incorrect or has expired."
+	} else {
+		// TODO New usecase "UpdateUserUseCase" to update its verification status
+	}
+
+	registerValidateTmpl, _ := Container.GetPageUseCase.GetPage("registerValidate", map[string]interface{}{
+		"Head":      headTmpl,
+		"PageError": NewPageError(errorMessage),
+	})
+	_, _ = w.Write(registerValidateTmpl)
+}