mirror of https://github.com/grpc/grpc-go.git
98 lines
3.0 KiB
Go
98 lines
3.0 KiB
Go
/*
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*
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* Copyright 2022 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package e2e
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import (
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"crypto/tls"
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"crypto/x509"
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"fmt"
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"os"
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"path"
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"testing"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc/testdata"
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)
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const (
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// Names of files inside tempdir, for certprovider plugin to watch.
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certFile = "cert.pem"
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keyFile = "key.pem"
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rootFile = "ca.pem"
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)
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func createTmpFile(src, dst string) error {
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data, err := os.ReadFile(src)
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if err != nil {
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return fmt.Errorf("os.ReadFile(%q) failed: %v", src, err)
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}
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if err := os.WriteFile(dst, data, os.ModePerm); err != nil {
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return fmt.Errorf("os.WriteFile(%q) failed: %v", dst, err)
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}
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return nil
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}
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// createTempDirWithFiles creates a temporary directory under the system default
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// tempDir with the given dirSuffix. It also reads from certSrc, keySrc and
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// rootSrc files are creates appropriate files under the newly create tempDir.
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// Returns the name of the created tempDir.
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func createTmpDirWithFiles(dirSuffix, certSrc, keySrc, rootSrc string) (string, error) {
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// Create a temp directory. Passing an empty string for the first argument
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// uses the system temp directory.
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dir, err := os.MkdirTemp("", dirSuffix)
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if err != nil {
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return "", fmt.Errorf("os.MkdirTemp() failed: %v", err)
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}
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if err := createTmpFile(testdata.Path(certSrc), path.Join(dir, certFile)); err != nil {
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return "", err
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}
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if err := createTmpFile(testdata.Path(keySrc), path.Join(dir, keyFile)); err != nil {
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return "", err
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}
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if err := createTmpFile(testdata.Path(rootSrc), path.Join(dir, rootFile)); err != nil {
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return "", err
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}
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return dir, nil
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}
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// CreateClientTLSCredentials creates client-side TLS transport credentials
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// using certificate and key files from testdata/x509 directory.
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func CreateClientTLSCredentials(t *testing.T) credentials.TransportCredentials {
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t.Helper()
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cert, err := tls.LoadX509KeyPair(testdata.Path("x509/client1_cert.pem"), testdata.Path("x509/client1_key.pem"))
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if err != nil {
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t.Fatalf("tls.LoadX509KeyPair(x509/client1_cert.pem, x509/client1_key.pem) failed: %v", err)
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}
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b, err := os.ReadFile(testdata.Path("x509/server_ca_cert.pem"))
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if err != nil {
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t.Fatalf("os.ReadFile(x509/server_ca_cert.pem) failed: %v", err)
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}
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roots := x509.NewCertPool()
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if !roots.AppendCertsFromPEM(b) {
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t.Fatal("failed to append certificates")
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}
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return credentials.NewTLS(&tls.Config{
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Certificates: []tls.Certificate{cert},
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RootCAs: roots,
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ServerName: "x.test.example.com",
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})
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}
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