GODT-1779: Remove go-imap

internal/certs/cert_store_darwin.go

@@ -0,0 +1,85 @@
+// Copyright (c) 2022 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 certs
+
+import (
+	"os"
+
+	"golang.org/x/sys/execabs"
+)
+
+func installCert(certPEM []byte) error {
+	name, err := writeToTempFile(certPEM)
+	if err != nil {
+		return err
+	}
+
+	return addTrustedCert(name)
+}
+
+func uninstallCert(certPEM []byte) error {
+	name, err := writeToTempFile(certPEM)
+	if err != nil {
+		return err
+	}
+
+	return removeTrustedCert(name)
+}
+
+func addTrustedCert(certPath string) error {
+	return execabs.Command( //nolint:gosec
+		"/usr/bin/security",
+		"execute-with-privileges",
+		"/usr/bin/security",
+		"add-trusted-cert",
+		"-d",
+		"-r", "trustRoot",
+		"-p", "ssl",
+		"-k", "/Library/Keychains/System.keychain",
+		certPath,
+	).Run()
+}
+
+func removeTrustedCert(certPath string) error {
+	return execabs.Command( //nolint:gosec
+		"/usr/bin/security",
+		"execute-with-privileges",
+		"/usr/bin/security",
+		"remove-trusted-cert",
+		"-d",
+		certPath,
+	).Run()
+}
+
+// writeToTempFile writes the given data to a temporary file and returns the path.
+func writeToTempFile(data []byte) (string, error) {
+	f, err := os.CreateTemp("", "tls")
+	if err != nil {
+		return "", err
+	}
+
+	if _, err := f.Write(data); err != nil {
+		return "", err
+	}
+
+	if err := f.Close(); err != nil {
+		return "", err
+	}
+
+	return f.Name(), nil
+}