forked from aergoio/aergo
/
root.go
160 lines (138 loc) · 4.23 KB
/
root.go
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/**
* @file
* @copyright defined in aergo/LICENSE.txt
*/
package cmd
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"log"
"os"
"github.com/aergoio/aergo/cmd/aergocli/util"
"github.com/rs/zerolog"
"github.com/spf13/cobra"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
const aergosystem = "aergo.system"
var (
// Used for test.
test bool
// Used for flags.
home string
cfgFile string
host string
port int32
crtFile string
cacrtFile string
svrName string
keyFile string
certPeer string
privKey string
pw string
dataDir string
from string
to string
amount string
unit string
name string
address string
stateroot string
proof bool
compressed bool
staking bool
remote bool
importFormat string
rootConfig CliConfig
rootCmd = &cobra.Command{
Use: "aergocli",
Short: "Aergo light commandline interface",
Long: `Aergo is right`,
PersistentPreRun: connectAergo,
PersistentPostRun: disconnectAergo,
}
)
func init() {
log.SetOutput(os.Stderr)
cobra.OnInitialize(initConfig)
rootCmd.SetOutput(os.Stdout)
rootCmd.PersistentFlags().StringVar(&home, "home", "", "aergo cli home path")
rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is cliconfig.toml)")
rootCmd.PersistentFlags().StringVar(&svrName, "tlsservername", "", "aergosvr name for TLS ")
rootCmd.PersistentFlags().StringVar(&cacrtFile, "tlscacert", "", "aergosvr CA certification file for TLS ")
rootCmd.PersistentFlags().StringVar(&crtFile, "tlscert", "", "client certification file for TLS ")
rootCmd.PersistentFlags().StringVar(&keyFile, "tlskey", "", "client key file for TLS ")
rootCmd.PersistentFlags().StringVarP(&host, "host", "H", "localhost", "Host address to aergo server")
rootCmd.PersistentFlags().Int32VarP(&port, "port", "p", 7845, "Port number to aergo server")
}
func initConfig() {
cliCtx := NewCliContext(home, cfgFile)
cliCtx.Vc.BindPFlag("host", rootCmd.PersistentFlags().Lookup("host"))
cliCtx.Vc.BindPFlag("port", rootCmd.PersistentFlags().Lookup("port"))
cliCtx.Vc.BindPFlag("tls.servername", rootCmd.PersistentFlags().Lookup("tlsservername"))
cliCtx.Vc.BindPFlag("tls.cacert", rootCmd.PersistentFlags().Lookup("tlscacert"))
cliCtx.Vc.BindPFlag("tls.clientcert", rootCmd.PersistentFlags().Lookup("tlscert"))
cliCtx.Vc.BindPFlag("tls.clientkey", rootCmd.PersistentFlags().Lookup("tlskey"))
cliCtx.BindPFlags(rootCmd.PersistentFlags())
rootConfig = cliCtx.GetDefaultConfig().(CliConfig)
err := cliCtx.LoadOrCreateConfig(&rootConfig)
if err != nil {
log.Fatalf("Fail to load configuration file %v: %v", cliCtx.Vc.ConfigFileUsed(), err)
}
}
func Execute() {
zerolog.SetGlobalLevel(zerolog.Disabled)
if err := rootCmd.Execute(); err != nil {
os.Exit(1)
}
}
// GetServerAddress return ip address and port of server
func GetServerAddress() string {
return fmt.Sprintf("%s:%d", rootConfig.Host, rootConfig.Port)
}
func connectAergo(cmd *cobra.Command, args []string) {
if test {
return
}
serverAddr := GetServerAddress()
opts := []grpc.DialOption{
grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(1024 * 1024 * 256)),
}
if rootConfig.TLS.ClientCert != "" || rootConfig.TLS.ClientKey != "" {
certificate, err := tls.LoadX509KeyPair(rootConfig.TLS.ClientCert, rootConfig.TLS.ClientKey)
if err != nil {
log.Fatal("wrong tls setting : ", err)
}
certPool := x509.NewCertPool()
ca, err := ioutil.ReadFile(rootConfig.TLS.CACert)
if err != nil {
log.Fatal("could not read server certification file : ", err)
}
if ok := certPool.AppendCertsFromPEM(ca); !ok {
log.Fatal("failed to append server certification to CA certs")
}
creds := credentials.NewTLS(&tls.Config{
ServerName: rootConfig.TLS.ServerName,
Certificates: []tls.Certificate{certificate},
RootCAs: certPool,
})
opts = append(opts, grpc.WithTransportCredentials(creds))
} else {
opts = append(opts, grpc.WithInsecure())
}
var ok bool
client, ok = util.GetClient(serverAddr, opts).(*util.ConnClient)
if !ok {
log.Fatal("internal error. wrong RPC client type")
}
}
func disconnectAergo(cmd *cobra.Command, args []string) {
if test {
return
}
if client != nil {
client.Close()
}
}