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sftp.go
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sftp.go
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package provider
import (
"fmt"
"net/url"
"os"
"strings"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/terminal"
"github.com/pkg/sftp"
)
const sftpDefaultPort string = "22"
type SftpProvider struct {
target *url.URL
host string
port string
conf *ssh.ClientConfig
}
func (p *SftpProvider) Publish(target *url.URL) error {
p.configure(target)
p.connect()
return nil
}
func (p *SftpProvider) configure(target *url.URL) {
host := target.Host
p.host = host[:strings.Index(host, ":")]
port := host[strings.Index(host, ":")+1:]
if port == "" || port == "0" {
p.port = sftpDefaultPort
} else {
p.port = port
}
p.conf = &ssh.ClientConfig{
User: target.User.Username(),
Auth: []ssh.AuthMethod{
ssh.PasswordCallback(func() (string, error) {
if pass, def := target.User.Password(); def {
return pass, nil
} else {
fmt.Print("Enter password: ")
pass, _ := terminal.ReadPassword(int(os.Stdin.Fd()))
return string(pass), nil
}
}),
},
}
}
func (p *SftpProvider) connect() {
cli, err := ssh.Dial("tcp", p.host+":"+p.port, p.conf)
if err != nil {
panic("Error connecting via SFTP: " + err.Error())
}
client, err := sftp.NewClient(cli)
defer client.Close()
p.upload(client)
}
func (p *SftpProvider) upload(client *sftp.Client) {
}
func init() {
registerProvider("sftp", &SftpProvider{})
}