From 49507512d428a1ae512284001a8e92ba79bf5f50 Mon Sep 17 00:00:00 2001
From: Eamon Bauman <eamon@eamonbauman.com>
Date: Thu, 23 Feb 2023 19:40:53 -0500
Subject: [PATCH] adding time checking (#1)

* added notAfter and notBefore checks

* ignoring golicense binary
---
 .gitignore           |  3 ++-
 pkg/client/client.go | 11 +++++++++++
 pkg/types/errors.go  | 22 ++++++++++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/.gitignore b/.gitignore
index ec9faf1..f7b0386 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 ./golicense
 *.pem
-.idea/
\ No newline at end of file
+.idea/
+golicense
\ No newline at end of file
diff --git a/pkg/client/client.go b/pkg/client/client.go
index a2797bf..d9d14e6 100644
--- a/pkg/client/client.go
+++ b/pkg/client/client.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	license2 "github.com/ebauman/golicense/pkg/license"
 	"github.com/ebauman/golicense/pkg/types"
+	"time"
 )
 
 func Blocking(licenseKey string, usages map[string]int, publicKeys []*rsa.PublicKey) types.LicensingResponse {
@@ -25,6 +26,16 @@ func Blocking(licenseKey string, usages map[string]int, publicKeys []*rsa.Public
 		return types.NewLicensingResponse(false, err)
 	}
 
+	// it's a license. is it expired?
+	if license.NotAfter.Before(time.Now()) {
+		return types.NewLicensingResponse(false, types.NewLicenseExpiredError())
+	}
+
+	// are we using it before we should?
+	if license.NotBefore.After(time.Now()) {
+		return types.NewLicensingResponse(false, types.NewLicenseNotYetValidError())
+	}
+
 	// valid license, check usages
 	for k, v := range usages {
 		// check to see if there is a grant for what we're trying to use
diff --git a/pkg/types/errors.go b/pkg/types/errors.go
index 8e53ed8..6c89175 100644
--- a/pkg/types/errors.go
+++ b/pkg/types/errors.go
@@ -99,3 +99,25 @@ func (InvalidPublicKeysError) Error() string {
 func NewInvalidPublicKeysError() InvalidPublicKeysError {
 	return InvalidPublicKeysError{}
 }
+
+type LicenseExpiredError struct {
+}
+
+func (LicenseExpiredError) Error() string {
+	return fmt.Sprintf("license expired")
+}
+
+func NewLicenseExpiredError() LicenseExpiredError {
+	return LicenseExpiredError{}
+}
+
+type LicenseNotYetValidError struct {
+}
+
+func (LicenseNotYetValidError) Error() string {
+	return fmt.Sprintf("license not yet valid")
+}
+
+func NewLicenseNotYetValidError() LicenseNotYetValidError {
+	return LicenseNotYetValidError{}
+}