mirror of
https://github.com/hanzozt/zt.git
synced 2026-11-03 05:01:58 +00:00
zeekay
241625e7d9
- Repo names: ziti-* → zt-* - Go modules: github.com/hanzozt/ziti → github.com/hanzozt/zt - Docker images: hanzozt/ziti-* → hanzozt/zt-* - C/Java/JS symbols: ziti_* → zt_* - File and directory names updated
113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
/*
|
|
Copyright NetFoundry Inc.
|
|
|
|
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
|
|
|
|
https://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 client
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
|
|
"github.com/michaelquigley/pfxlog"
|
|
"github.com/hanzozt/foundation/v2/info"
|
|
"github.com/hanzozt/identity"
|
|
"github.com/hanzozt/identity/dotzt"
|
|
"github.com/hanzozt/transport/v2"
|
|
"github.com/hanzozt/zt/v2/router/xgress_transport"
|
|
"github.com/hanzozt/zt/zttest/zt-traffic-test/subcmd"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
func init() {
|
|
ncCmd.Flags().StringVarP(&ncCmdIdentity, "identityName", "i", "default", "dotzeet identity name")
|
|
ncCmd.Flags().StringVarP(&ncCmdIngress, "ingressEndpoint", "e", "tls:127.0.0.1:7002", "ingress endpoint address")
|
|
subcmd.Root.AddCommand(ncCmd)
|
|
}
|
|
|
|
var ncCmd = &cobra.Command{
|
|
Use: "nc <service>",
|
|
Short: "Simple NetCat",
|
|
Args: cobra.ExactArgs(1),
|
|
Run: doNC,
|
|
}
|
|
var ncCmdIdentity string
|
|
var ncCmdIngress string
|
|
|
|
func doNC(cmd *cobra.Command, args []string) {
|
|
_, id, err := dotzt.LoadIdentity(ncCmdIdentity)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
ingressAddr, err := transport.ParseAddress(ncCmdIngress)
|
|
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
serviceId := &identity.TokenId{Token: args[0]}
|
|
fmt.Fprintf(os.Stderr, "Dialing fabric ingress %v\n", ncCmdIngress)
|
|
conn, err := xgress_transport.ClientDial(ingressAddr, id, serviceId, nil)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
fmt.Fprintf(os.Stderr, "Successfully authenticated to ingress %v. Beginning nc.\n", ncCmdIngress)
|
|
|
|
pfxlog.Logger().Debug("connected")
|
|
go Copy(conn, os.Stdin)
|
|
Copy(os.Stdout, conn)
|
|
}
|
|
|
|
func Copy(writer io.Writer, reader io.Reader) {
|
|
buf := make([]byte, info.MaxUdpPacketSize)
|
|
bytesCopied, err := io.CopyBuffer(writer, reader, buf)
|
|
pfxlog.Logger().Infof("Copied %v bytes", bytesCopied)
|
|
if err != nil {
|
|
pfxlog.Logger().Errorf("error while copying bytes (%v)", err)
|
|
}
|
|
}
|
|
|
|
// CopyAndLog does what io.Copy does but with additional logging
|
|
func CopyAndLog(context string, writer io.Writer, reader io.Reader) {
|
|
buf := make([]byte, info.MaxUdpPacketSize)
|
|
|
|
var bytesRead, totalBytesRead, bytesWritten, totalBytesWritten int
|
|
var readErr, writeErr error
|
|
|
|
for {
|
|
bytesRead, readErr = reader.Read(buf)
|
|
totalBytesRead += bytesRead
|
|
if bytesRead > 0 {
|
|
bytesWritten, writeErr = writer.Write(buf[:bytesRead])
|
|
totalBytesWritten += bytesWritten
|
|
if writeErr != nil {
|
|
pfxlog.Logger().WithError(writeErr).Error("Write failure on copy")
|
|
}
|
|
}
|
|
|
|
if readErr != nil && readErr != io.EOF {
|
|
pfxlog.Logger().WithError(readErr).Error("Read failure on copy")
|
|
}
|
|
|
|
if readErr != nil || writeErr != nil {
|
|
return
|
|
}
|
|
|
|
_, _ = fmt.Fprintf(os.Stderr, "%v: Read %v (%v total), Wrote %v (%v total)\n",
|
|
context, bytesRead, totalBytesRead, bytesWritten, totalBytesWritten)
|
|
}
|
|
}
|