72795a308b
* Full SSH urls e.g. ssh://user@host/repo * Custom ports in both bare and full urls * GIT_SSH environment for alternate ssh clients * Explicit support for plink.exe and TortoisePlink.exe
88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
package lfs
|
|
|
|
import (
|
|
"encoding/json"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/github/git-lfs/vendor/_nuts/github.com/rubyist/tracerx"
|
|
)
|
|
|
|
type sshAuthResponse struct {
|
|
Message string `json:"-"`
|
|
Href string `json:"href"`
|
|
Header map[string]string `json:"header"`
|
|
ExpiresAt string `json:"expires_at"`
|
|
}
|
|
|
|
func sshAuthenticate(endpoint Endpoint, operation, oid string) (sshAuthResponse, error) {
|
|
|
|
// This is only used as a fallback where the Git URL is SSH but server doesn't support a full SSH binary protocol
|
|
// and therefore we derive a HTTPS endpoint for binaries instead; but check authentication here via SSH
|
|
|
|
res := sshAuthResponse{}
|
|
if len(endpoint.SshUserAndHost) == 0 {
|
|
return res, nil
|
|
}
|
|
|
|
tracerx.Printf("ssh: %s git-lfs-authenticate %s %s %s",
|
|
endpoint.SshUserAndHost, endpoint.SshPath, operation, oid)
|
|
|
|
exe, args := sshGetExeAndArgs(endpoint)
|
|
args = append(args,
|
|
"git-lfs-authenticate",
|
|
endpoint.SshPath,
|
|
operation, oid)
|
|
|
|
cmd := exec.Command(exe, args...)
|
|
|
|
out, err := cmd.CombinedOutput()
|
|
|
|
if err != nil {
|
|
res.Message = string(out)
|
|
} else {
|
|
err = json.Unmarshal(out, &res)
|
|
}
|
|
|
|
return res, err
|
|
}
|
|
|
|
// Return the executable name for ssh on this machine and the base args
|
|
// Base args includes port settings, user/host, everything pre the command to execute
|
|
func sshGetExeAndArgs(endpoint Endpoint) (exe string, baseargs []string) {
|
|
if len(endpoint.SshUserAndHost) == 0 {
|
|
return "", nil
|
|
}
|
|
|
|
ssh := Config.Getenv("GIT_SSH")
|
|
basessh := filepath.Base(ssh)
|
|
// Strip extension for easier comparison
|
|
if ext := filepath.Ext(basessh); len(ext) > 0 {
|
|
basessh = basessh[:len(basessh)-len(ext)]
|
|
}
|
|
isPlink := strings.EqualFold(basessh, "plink")
|
|
isTortoise := strings.EqualFold(basessh, "tortoiseplink")
|
|
if ssh == "" {
|
|
ssh = "ssh"
|
|
}
|
|
|
|
args := make([]string, 0, 4)
|
|
if isTortoise {
|
|
// TortoisePlink requires the -batch argument to behave like ssh/plink
|
|
args = append(args, "-batch")
|
|
}
|
|
|
|
if len(endpoint.SshPort) > 0 {
|
|
if isPlink || isTortoise {
|
|
args = append(args, "-P")
|
|
} else {
|
|
args = append(args, "-p")
|
|
}
|
|
args = append(args, endpoint.SshPort)
|
|
}
|
|
args = append(args, endpoint.SshUserAndHost)
|
|
|
|
return ssh, args
|
|
}
|