/
client.go
83 lines (66 loc) · 2.65 KB
/
client.go
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// Copyright 2021 The Rode Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package common
import (
"context"
"crypto/tls"
"errors"
"fmt"
"time"
pb "github.com/rode/rode/proto/v1alpha1"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
var (
contextDuration = 10 * time.Second
)
func NewRodeClient(config *ClientConfig, dialOptions ...grpc.DialOption) (pb.RodeClient, error) {
ctx, cancel := context.WithTimeout(context.Background(), contextDuration)
defer cancel()
if config == nil || config.Rode == nil || config.Rode.Host == "" {
return nil, errors.New("rode host must be specified")
}
multipleAuthEnabled := config.oidcAuthIsConfigured() && config.basicAuthIsConfigured() ||
config.ProxyAuth && (config.oidcAuthIsConfigured() || config.basicAuthIsConfigured())
if multipleAuthEnabled {
return nil, errors.New("only one authentication method can be used")
}
dialOptions = append(dialOptions, grpc.WithBlock(), grpc.FailOnNonTempDialError(true))
if config.Rode.DisableTransportSecurity {
dialOptions = append(dialOptions, grpc.WithInsecure())
} else {
dialOptions = append(dialOptions, grpc.WithTransportCredentials(credentials.NewTLS(&tls.Config{})))
}
if config.oidcAuthIsConfigured() {
oidcCredentials, err := newOidcAuth(config.OIDCAuth, config.Rode.DisableTransportSecurity)
if err != nil {
return nil, fmt.Errorf("error configuring OIDC auth: %v", err)
}
dialOptions = append(dialOptions, grpc.WithPerRPCCredentials(oidcCredentials))
}
if config.basicAuthIsConfigured() {
if config.BasicAuth.Username == "" || config.BasicAuth.Password == "" {
return nil, errors.New("both username and password must be set for basic auth")
}
dialOptions = append(dialOptions, grpc.WithPerRPCCredentials(newBasicAuth(config.BasicAuth, config.Rode.DisableTransportSecurity)))
}
if config.ProxyAuth {
dialOptions = append(dialOptions, grpc.WithPerRPCCredentials(newProxyAuth(config.Rode.DisableTransportSecurity)))
}
conn, err := grpc.DialContext(ctx, config.Rode.Host, dialOptions...)
if err != nil {
return nil, fmt.Errorf("error connecting to rode server: %v", err)
}
return pb.NewRodeClient(conn), nil
}