feat(GODT-2771): gRPC calls for TLS certificates.

internal/frontend/grpc/service_cert.go

@@ -0,0 +1,79 @@
+// Copyright (c) 2023 Proton AG
+//
+// This file is part of Proton Mail Bridge.
+//
+// Proton Mail Bridge is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Proton Mail Bridge is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
+
+package grpc
+
+import (
+	"context"
+	"errors"
+	"os"
+	"path/filepath"
+
+	"github.com/ProtonMail/gluon/async"
+	"github.com/ProtonMail/proton-bridge/v3/internal/certs"
+	"google.golang.org/protobuf/types/known/emptypb"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+)
+
+func (s *Service) IsTLSCertificateInstalled(context.Context, *emptypb.Empty) (*wrapperspb.BoolValue, error) {
+	s.log.Info("IsTLSCertificateInstalled")
+
+	cert, _ := s.bridge.GetBridgeTLSCert()
+
+	return &wrapperspb.BoolValue{Value: certs.NewInstaller().IsCertInstalled(cert)}, nil
+}
+
+func (s *Service) InstallTLSCertificate(context.Context, *emptypb.Empty) (*emptypb.Empty, error) {
+	s.log.Info("InstallTLSCertificate")
+
+	go func() {
+		defer async.HandlePanic(s.panicHandler)
+		cert, _ := s.bridge.GetBridgeTLSCert()
+
+		err := certs.NewInstaller().InstallCert(cert)
+		switch {
+		case err == nil:
+			_ = s.SendEvent(NewCertInstallSuccessEvent())
+		case errors.Is(err, certs.ErrUserCanceledCertificateInstall):
+			_ = s.SendEvent(NewCertInstallCanceledEvent())
+		default:
+			_ = s.SendEvent(NewCertInstallFailedEvent())
+		}
+	}()
+
+	return &emptypb.Empty{}, nil
+}
+
+func (s *Service) ExportTLSCertificates(_ context.Context, folderPath *wrapperspb.StringValue) (*emptypb.Empty, error) {
+	s.log.WithField("folderPath", folderPath).Info("ExportTLSCertificates")
+
+	go func() {
+		defer async.HandlePanic(s.panicHandler)
+
+		cert, key := s.bridge.GetBridgeTLSCert()
+
+		if err := os.WriteFile(filepath.Join(folderPath.Value, "cert.pem"), cert, 0o600); err != nil {
+			_ = s.SendEvent(NewGenericErrorEvent(ErrorCode_TLS_CERT_EXPORT_ERROR))
+		}
+
+		if err := os.WriteFile(filepath.Join(folderPath.Value, "key.pem"), key, 0o600); err != nil {
+			_ = s.SendEvent(NewGenericErrorEvent(ErrorCode_TLS_KEY_EXPORT_ERROR))
+		}
+	}()
+
+	return &emptypb.Empty{}, nil
+}