Add TLS support to server with custom certificate and key paths

server/server.go

@@ -2,6 +2,7 @@ package server
 
 import (
 	"context"
+	"crypto/tls"
 	"fmt"
 	"net"
 	"net/http"
@@ -20,6 +21,8 @@ const (
 var ErrServerAlreadyRunning = fmt.Errorf("server is already running")
 
 type Server struct {
+	certPath     string
+	keyPath      string
 	baseCtx      context.Context
 	listener     net.Listener
 	listenerLock *sync.Mutex
@@ -114,7 +117,11 @@ func (s *Server) Run() (err error) {
 		close(s.ready)
 	}
 
-	err = s.handler.Serve(s.listener)
+	if s.certPath != "" && s.keyPath != "" {
+		err = s.handler.ServeTLS(s.listener, s.certPath, s.keyPath)
+	} else {
+		err = s.handler.Serve(s.listener)
+	}
 
 	if err != nil && err != http.ErrServerClosed {
 		return err
@@ -186,3 +193,18 @@ func WithBaseContext(ctx context.Context) Option {
 		s.baseCtx = ctx
 	}
 }
+
+// WithTLS is an option function that configures the server to use TLS (Transport Layer Security).
+// It sets the certificate and key file paths, and optionally allows custom TLS configuration.
+// The certificate and key file paths must be provided as arguments.
+// If a custom TLS configuration is provided, it will be applied to the server's handler.
+func WithTLS(certFile, keyFile string, config ...*tls.Config) Option {
+	return func(s *Server) {
+		s.certPath = certFile
+		s.keyPath = keyFile
+
+		if len(config) > 0 {
+			s.handler.TLSConfig = config[0]
+		}
+	}
+}

server/server_test.go

@@ -2,8 +2,11 @@ package server
 
 import (
 	"context"
+	"crypto/tls"
+	"errors"
 	"fmt"
 	"net/http"
+	"os"
 	"testing"
 	"time"
 
@@ -277,3 +280,40 @@ func TestServer_Addr(t *testing.T) {
 		t.Error("Expected non-empty address")
 	}
 }
+func TestServer_WithTLS(t *testing.T) {
+	// Create a new Server instance
+	server := NewServer(":0")
+	// Set TLS configuration using WithTLS
+	certPath := "/path/to/cert.pem"
+	keyPath := "/path/to/key.pem"
+
+	// #nosec G402 - InsecureSkipVerify is used for testing purposes
+	tlsConfig := &tls.Config{
+		InsecureSkipVerify: true,
+	}
+
+	WithTLS(certPath, keyPath, tlsConfig)(server)
+
+	// Check if the certificate and key paths are set correctly
+	if server.certPath != certPath {
+		t.Errorf("Expected certificate path %s, but got %s", certPath, server.certPath)
+	}
+
+	if server.keyPath != keyPath {
+		t.Errorf("Expected key path %s, but got %s", keyPath, server.keyPath)
+	}
+
+	// Check if the TLS configuration is set correctly
+	if server.handler.TLSConfig == nil {
+		t.Error("Expected non-nil TLS configuration")
+	}
+
+	if server.handler.TLSConfig.InsecureSkipVerify != true {
+		t.Error("Expected InsecureSkipVerify to be true")
+	}
+
+	err := server.Run()
+	if !errors.Is(err, os.ErrNotExist) {
+		t.Errorf("Got unexpected error: %v", err)
+	}
+}