/
pushv2.go
180 lines (144 loc) 路 3.56 KB
/
pushv2.go
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package batchssh
import (
"fmt"
"io"
"io/fs"
"os"
"path"
"path/filepath"
"github.com/pkg/sftp"
"golang.org/x/crypto/ssh"
"github.com/windvalley/gossh/pkg/log"
"github.com/windvalley/gossh/pkg/util"
)
const (
PushBeginFile = "C"
PushBeginFolder = "D"
PushBeginEndFolder = "0"
PushEndFolder = "E"
PushEnd = "\x00"
)
func (c *Client) pushFileOrDirV2(
client *ssh.Client,
ftpC *sftp.Client,
srcFile, dstDir, host string,
allowOverwrite bool,
) error {
if !allowOverwrite {
dstFile := path.Join(dstDir, filepath.Base(srcFile))
if err := checkAllowOverWrite(ftpC, host, dstFile); err != nil {
return err
}
}
session, err := client.NewSession()
if err != nil {
return err
}
defer session.Close()
if !util.IsDir(srcFile) {
return pushFileV2(session, srcFile, dstDir, host)
}
return pushDirV2(session, srcFile, dstDir, host)
}
func pushFileV2(session *ssh.Session, src, dest, host string) error {
go func() {
w, err := session.StdinPipe()
if err != nil {
log.Debugf("%s: failed to open stdin, error: %v", host, err)
return
}
defer w.Close()
fileinfo, err := os.Stat(src)
if err != nil {
log.Debugf("%s: failed to get file stat, file: %s, error: %v", host, src, err)
return
}
if err := createFile(w, host, src, fileinfo); err != nil {
log.Debugf("%s: failed to create file, file: %s, error: %v", host, src, err)
}
}()
return session.Run("scp -rt " + dest)
}
func pushDirV2(session *ssh.Session, src, dest, host string) error {
go func() {
w, err := session.StdinPipe()
if err != nil {
log.Debugf("%s: failed to open stdin, error: %v", host, err)
return
}
defer w.Close()
fileinfo, err := os.Stat(src)
if err != nil {
log.Debugf("%s: failed to get file stat, file: %s, error: %v", host, src, err)
return
}
fmt.Fprintln(w, PushBeginFolder+getMode(fileinfo), PushBeginEndFolder, fileinfo.Name())
if err := walkDir(w, src, host); err != nil {
log.Debugf("%s: failed to walk dir, dir: %s, error: %v", host, src, err)
return
}
fmt.Fprintln(w, PushEndFolder)
}()
return session.Run("scp -rt " + dest)
}
func walkDir(w io.WriteCloser, dir, host string) error {
files, err := os.ReadDir(dir)
if err != nil {
return err
}
for _, file := range files {
name := file.Name()
path := path.Join(dir, name)
fileinfo, err := file.Info()
if err != nil {
return err
}
if file.IsDir() {
fmt.Fprintln(w, PushBeginFolder+getMode(fileinfo), PushBeginEndFolder, name)
if err := walkDir(w, path, host); err != nil {
return err
}
fmt.Fprintln(w, PushEndFolder)
} else {
if err := createFile(w, host, path, fileinfo); err != nil {
return err
}
}
}
return nil
}
func createFile(w io.WriteCloser, host, path string, fileinfo fs.FileInfo) error {
f, err := os.Open(path)
if err != nil {
return err
}
defer f.Close()
fmt.Fprintln(w, PushBeginFile+getMode(fileinfo), fileinfo.Size(), fileinfo.Name())
if _, err := io.Copy(w, f); err != nil {
return err
}
fmt.Fprint(w, PushEnd)
log.Debugf("%s: %s pushed", host, path)
return nil
}
func getMode(f fs.FileInfo) string {
mod := f.Mode()
if mod > (1 << 9) {
mod = mod % (1 << 9)
}
return fmt.Sprintf("%#o", uint32(mod))
}
func checkAllowOverWrite(ftpC *sftp.Client, host, dstFile string) error {
f, err := ftpC.Stat(dstFile)
if err != nil && !os.IsNotExist(err) {
return fmt.Errorf("%s: failed to stat %s, error: %v", host, dstFile, err)
}
if f != nil {
return fmt.Errorf(
"%s: %s alreay exists, you can add '-F' flag to overwrite it",
host,
dstFile,
)
}
return nil
}