github.com/zorawar87/trillian@v1.2.1/client/rpcflags/rpcflags_test.go (about)

     1  // Copyright 2018 Google Inc. All Rights Reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package rpcflags
    16  
    17  import (
    18  	"context"
    19  	"encoding/pem"
    20  	"flag"
    21  	"os"
    22  	"testing"
    23  
    24  	"github.com/google/trillian"
    25  	"github.com/google/trillian/testonly/integration"
    26  	"github.com/google/trillian/testonly/setup"
    27  	"github.com/google/trillian/util/flagsaver"
    28  	"google.golang.org/grpc"
    29  	"google.golang.org/grpc/credentials"
    30  )
    31  
    32  func TestNewClientDialOptionsFromFlagsWithTLSCertFileNotSet(t *testing.T) {
    33  	// Set up Trillian servers
    34  	const numSequencers = 2
    35  	serverOpts := []grpc.ServerOption{}
    36  	clientOpts := []grpc.DialOption{grpc.WithInsecure()}
    37  	logEnv, err := integration.NewLogEnvWithGRPCOptions(context.Background(), numSequencers, serverOpts, clientOpts)
    38  	if err != nil {
    39  		t.Fatal(err)
    40  	}
    41  	defer logEnv.Close()
    42  
    43  	dialOpts, err := NewClientDialOptionsFromFlags()
    44  	if err != nil {
    45  		t.Errorf("Got an unexpected error: %v", err)
    46  	}
    47  
    48  	// Check that the returned dial options can be used to connect and make
    49  	// requests against the Trillian services created above.
    50  	conn, err := grpc.Dial(logEnv.Address, dialOpts...)
    51  	if err != nil {
    52  		t.Errorf("failed to dial %v: %v", logEnv.Address, err)
    53  	}
    54  	defer conn.Close()
    55  
    56  	adminClient := trillian.NewTrillianAdminClient(conn)
    57  	if _, err = adminClient.ListTrees(context.Background(), &trillian.ListTreesRequest{}); err != nil {
    58  		t.Errorf("failed to request trees from the Admin Server: %v", err)
    59  	}
    60  }
    61  
    62  func TestNewClientDialOptionsFromFlagsWithTLSCertFileMissing(t *testing.T) {
    63  	defer flagsaver.Save().Restore()
    64  	if err := flag.Set("tls_cert_file", "/a/missing/file"); err != nil {
    65  		t.Errorf("Failed to set flag: %v", err)
    66  	}
    67  
    68  	dialOpts, err := NewClientDialOptionsFromFlags()
    69  	if err == nil {
    70  		t.Errorf("Expected to get an error due to the file not being found")
    71  	}
    72  
    73  	if _, ok := err.(*os.PathError); !ok {
    74  		t.Errorf("Expected to get an os.PathError due to the file not being found, instead got: %v", err)
    75  	}
    76  
    77  	if dialOpts != nil {
    78  		t.Errorf("Expected returned dialOpts to be nil, instead got: %v", dialOpts)
    79  	}
    80  }
    81  
    82  func TestNewClientDialOptionsFromFlagsWithTLSCertFileSet(t *testing.T) {
    83  	// Create new TLS certificates for the test services, and write the Client
    84  	// certificate to a file (so we can refer to it using the flag).
    85  	crtFile, cleanupCrtFile := setup.TempFile(t, "test.crt.")
    86  	defer cleanupCrtFile()
    87  
    88  	tlsCert := setup.NewTLSCertificate(t)
    89  
    90  	// Certificate file and client dial options.
    91  	err := pem.Encode(crtFile, &pem.Block{Type: "CERTIFICATE", Bytes: tlsCert.Certificate[0]})
    92  	if err != nil {
    93  		t.Fatalf("Failed to encode the test TLS certificate %v", err)
    94  	}
    95  	clientCreds, err := credentials.NewClientTLSFromFile(crtFile.Name(), "")
    96  	if err != nil {
    97  		t.Fatalf("Failed to get credentials: %v", err)
    98  	}
    99  
   100  	// Set up Trillian servers (with TLS enabled)
   101  	const numSequencers = 0 // we don't actually need any sequencers.
   102  	serverCreds := credentials.NewServerTLSFromCert(&tlsCert)
   103  	serverOpts := []grpc.ServerOption{grpc.Creds(serverCreds)}
   104  	clientOpts := []grpc.DialOption{grpc.WithTransportCredentials(clientCreds)}
   105  	logEnv, err := integration.NewLogEnvWithGRPCOptions(context.Background(), numSequencers, serverOpts, clientOpts)
   106  	if err != nil {
   107  		t.Fatal(err)
   108  	}
   109  	defer logEnv.Close()
   110  
   111  	// Set up the flag.
   112  	defer flagsaver.Save().Restore()
   113  	err = flag.Set("tls_cert_file", crtFile.Name())
   114  	if err != nil {
   115  		t.Errorf("Failed to set -tls_cert_file flag: %v", err)
   116  	}
   117  
   118  	dialOpts, err := NewClientDialOptionsFromFlags()
   119  	if err != nil {
   120  		t.Errorf("Got an unexpected error: %v", err)
   121  	}
   122  
   123  	// Check that the returned dial options can be used to connect and make
   124  	// requests against the Trillian services created above.
   125  	conn, err := grpc.Dial(logEnv.Address, dialOpts...)
   126  	if err != nil {
   127  		t.Errorf("failed to dial %v: %v", logEnv.Address, err)
   128  	}
   129  	defer conn.Close()
   130  
   131  	adminClient := trillian.NewTrillianAdminClient(conn)
   132  	if _, err := adminClient.ListTrees(context.Background(), &trillian.ListTreesRequest{}); err != nil {
   133  		t.Errorf("failed to request trees from the Admin Server: %v", err)
   134  	}
   135  }