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grpc.go
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grpc.go
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// Copyright 2018-2023 CERN
//
// 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.
//
// In applying this license, CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
package main
import (
"context"
"crypto/tls"
"fmt"
"log"
gateway "github.com/cs3org/go-cs3apis/cs3/gateway/v1beta1"
rpc "github.com/cs3org/go-cs3apis/cs3/rpc/v1beta1"
ctxpkg "github.com/cs3org/reva/v2/pkg/ctx"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
ins "google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/metadata"
)
func getAuthContext() context.Context {
ctx := context.Background()
// read token from file
t, err := readToken()
if err != nil {
log.Println(err)
return ctx
}
ctx = ctxpkg.ContextSetToken(ctx, t)
ctx = metadata.AppendToOutgoingContext(ctx, ctxpkg.TokenHeader, t)
return ctx
}
func getClient() (gateway.GatewayAPIClient, error) {
conn, err := getConn()
if err != nil {
return nil, err
}
return gateway.NewGatewayAPIClient(conn), nil
}
func getConn() (*grpc.ClientConn, error) {
if insecure {
return grpc.Dial(conf.Host, grpc.WithTransportCredentials(ins.NewCredentials()))
}
// TODO(labkode): if in the future we want client-side certificate validation,
// we need to load the client cert here
tlsconf := &tls.Config{InsecureSkipVerify: skipverify}
creds := credentials.NewTLS(tlsconf)
return grpc.Dial(conf.Host, grpc.WithTransportCredentials(creds))
}
func formatError(status *rpc.Status) error {
return fmt.Errorf("error: code=%+v msg=%q support_trace=%q", status.Code, status.Message, status.Trace)
}