88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package middleware
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import (
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"net"
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"testing"
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"github.com/stretchr/testify/require"
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"google.golang.org/grpc/credentials"
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)
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type fakeTransportCredentials struct {
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credentials.TransportCredentials
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callback func(conn net.Conn) (net.Conn, credentials.AuthInfo, error)
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}
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func (f fakeTransportCredentials) ServerHandshake(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
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return f.callback(conn)
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}
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func TestGRPCMiddleware_optionalTransportCredentials_ServerHandshake(t *testing.T) {
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plainConn := LabelledConn{protocol: ProtocolPlaintext}
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tlsConn := LabelledConn{protocol: ProtocolTLS}
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tests := []struct {
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name string
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conn net.Conn
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callback func(conn net.Conn) (net.Conn, credentials.AuthInfo, error)
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expectConn net.Conn
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expectAuthInfo credentials.AuthInfo
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expectErr string
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}{
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{
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name: "plaintext_noop",
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conn: plainConn,
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expectConn: plainConn,
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expectAuthInfo: nil,
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},
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{
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name: "tls_with_missing_auth",
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conn: tlsConn,
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callback: func(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
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return conn, nil, nil
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},
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expectConn: nil,
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expectAuthInfo: nil,
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expectErr: "missing auth info after handshake",
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},
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{
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name: "tls_success",
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conn: tlsConn,
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callback: func(conn net.Conn) (net.Conn, credentials.AuthInfo, error) {
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return conn, credentials.TLSInfo{}, nil
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},
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expectConn: tlsConn,
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expectAuthInfo: credentials.TLSInfo{},
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expectErr: "",
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},
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{
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name: "invalid_protocol",
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conn: LabelledConn{protocol: -1},
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expectConn: nil,
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expectAuthInfo: nil,
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expectErr: "invalid protocol for grpc connection",
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},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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creds := optionalTransportCredentials{
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TransportCredentials: fakeTransportCredentials{
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callback: tc.callback,
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},
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}
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conn, authInfo, err := creds.ServerHandshake(tc.conn)
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require.Equal(t, tc.expectConn, conn)
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require.Equal(t, tc.expectAuthInfo, authInfo)
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if tc.expectErr == "" {
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require.NoError(t, err)
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} else {
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require.Error(t, err)
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require.Contains(t, err.Error(), tc.expectErr)
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}
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})
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}
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}
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