Files
pg-bkup/pkg/scp.go
2024-07-30 19:18:34 +02:00

101 lines
3.2 KiB
Go

package pkg
import (
"context"
"errors"
"fmt"
"github.com/bramvdbogaerde/go-scp"
"github.com/bramvdbogaerde/go-scp/auth"
"github.com/jkaninda/pg-bkup/utils"
"golang.org/x/crypto/ssh"
"os"
)
func CopyToRemote(fileName, remotePath string) error {
sshUser := os.Getenv("SSH_USER")
sshPassword := os.Getenv("SSH_PASSWORD")
sshHostName := os.Getenv("SSH_HOST_NAME")
sshPort := os.Getenv("SSH_PORT")
sshIdentifyFile := os.Getenv("SSH_IDENTIFY_FILE")
clientConfig, _ := auth.PasswordKey(sshUser, sshPassword, ssh.InsecureIgnoreHostKey())
if sshIdentifyFile != "" && utils.FileExists(sshIdentifyFile) {
clientConfig, _ = auth.PrivateKey(sshUser, sshIdentifyFile, ssh.InsecureIgnoreHostKey())
} else {
if sshPassword == "" {
return errors.New("SSH_PASSWORD environment variable is required if SSH_IDENTIFY_FILE is empty\n")
}
clientConfig, _ = auth.PasswordKey(sshUser, sshPassword, ssh.InsecureIgnoreHostKey())
}
// Create a new SCP client
client := scp.NewClient(fmt.Sprintf("%s:%s", sshHostName, sshPort), &clientConfig)
// Connect to the remote server
err := client.Connect()
if err != nil {
return errors.New("Couldn't establish a connection to the remote server\n")
}
// Open a file
file, _ := os.Open(fileName)
// Close client connection after the file has been copied
defer client.Close()
// Close the file after it has been copied
defer file.Close()
// the context can be adjusted to provide time-outs or inherit from other contexts if this is embedded in a larger application.
err = client.CopyFromFile(context.Background(), *file, remotePath, "0655")
if err != nil {
fmt.Println("Error while copying file ")
return err
}
return nil
}
func CopyFromRemote(fileName, remotePath string) error {
sshUser := os.Getenv("SSH_USER")
sshPassword := os.Getenv("SSH_PASSWORD")
sshHostName := os.Getenv("SSH_HOST_NAME")
sshPort := os.Getenv("SSH_PORT")
sshIdentifyFile := os.Getenv("SSH_IDENTIFY_FILE")
clientConfig, _ := auth.PasswordKey(sshUser, sshPassword, ssh.InsecureIgnoreHostKey())
if sshIdentifyFile != "" && utils.FileExists(sshIdentifyFile) {
clientConfig, _ = auth.PrivateKey(sshUser, sshIdentifyFile, ssh.InsecureIgnoreHostKey())
} else {
if sshPassword == "" {
return errors.New("SSH_PASSWORD environment variable is required if SSH_IDENTIFY_FILE is empty\n")
}
clientConfig, _ = auth.PasswordKey(sshUser, sshPassword, ssh.InsecureIgnoreHostKey())
}
// Create a new SCP client
client := scp.NewClient(fmt.Sprintf("%s:%s", sshHostName, sshPort), &clientConfig)
// Connect to the remote server
err := client.Connect()
if err != nil {
return errors.New("Couldn't establish a connection to the remote server\n")
}
// Close client connection after the file has been copied
defer client.Close()
file, err := os.OpenFile(fileName, os.O_RDWR|os.O_CREATE, 0777)
if err != nil {
fmt.Println("Couldn't open the output file")
}
defer file.Close()
// the context can be adjusted to provide time-outs or inherit from other contexts if this is embedded in a larger application.
err = client.CopyFromRemote(context.Background(), file, remotePath)
if err != nil {
fmt.Println("Error while copying file ", err)
return err
}
return nil
}