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package security
import (
"crypto/tls"
"crypto/x509"
"io/ioutil"
"github.com/spf13/viper"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"github.com/chrislusf/seaweedfs/weed/glog"
)
func LoadServerTLS(config *viper.Viper, component string) grpc.ServerOption {
if config == nil {
return nil
}
// load cert/key, ca cert
cert, err := tls.LoadX509KeyPair(config.GetString(component+".cert"), config.GetString(component+".key"))
if err != nil {
glog.V(1).Infof("load cert/key error: %v", err)
return nil
}
caCert, err := ioutil.ReadFile(config.GetString("grpc.ca"))
if err != nil {
glog.V(1).Infof("read ca cert file error: %v", err)
return nil
}
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM(caCert)
ta := credentials.NewTLS(&tls.Config{
Certificates: []tls.Certificate{cert},
ClientCAs: caCertPool,
ClientAuth: tls.RequireAndVerifyClientCert,
})
return grpc.Creds(ta)
}
func LoadClientTLS(config *viper.Viper, component string) grpc.DialOption {
if config == nil {
return grpc.WithInsecure()
}
certFileName, keyFileName, caFileName := config.GetString(component+".cert"), config.GetString(component+".key"), config.GetString("grpc.ca")
if certFileName == "" || keyFileName == "" || caFileName == "" {
return grpc.WithInsecure()
}
// load cert/key, cacert
cert, err := tls.LoadX509KeyPair(certFileName, keyFileName)
if err != nil {
glog.V(1).Infof("load cert/key error: %v", err)
return grpc.WithInsecure()
}
caCert, err := ioutil.ReadFile(caFileName)
if err != nil {
glog.V(1).Infof("read ca cert file error: %v", err)
return grpc.WithInsecure()
}
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM(caCert)
ta := credentials.NewTLS(&tls.Config{
Certificates: []tls.Certificate{cert},
RootCAs: caCertPool,
InsecureSkipVerify: true,
})
return grpc.WithTransportCredentials(ta)
}
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