57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package ssh
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import (
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"io/ioutil"
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"net/url"
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"strings"
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"time"
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mdata "github.com/go-gost/gost/v3/pkg/metadata"
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"golang.org/x/crypto/ssh"
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)
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type metadata struct {
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handshakeTimeout time.Duration
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user *url.Userinfo
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signer ssh.Signer
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}
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func (d *sshDialer) parseMetadata(md mdata.Metadata) (err error) {
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const (
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handshakeTimeout = "handshakeTimeout"
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user = "user"
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privateKeyFile = "privateKeyFile"
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passphrase = "passphrase"
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)
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if v := mdata.GetString(md, user); v != "" {
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ss := strings.SplitN(v, ":", 2)
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if len(ss) == 1 {
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d.md.user = url.User(ss[0])
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} else {
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d.md.user = url.UserPassword(ss[0], ss[1])
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}
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}
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if key := mdata.GetString(md, privateKeyFile); key != "" {
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data, err := ioutil.ReadFile(key)
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if err != nil {
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return err
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}
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pp := mdata.GetString(md, passphrase)
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if pp == "" {
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d.md.signer, err = ssh.ParsePrivateKey(data)
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} else {
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d.md.signer, err = ssh.ParsePrivateKeyWithPassphrase(data, []byte(pp))
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}
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if err != nil {
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return err
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}
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}
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d.md.handshakeTimeout = mdata.GetDuration(md, handshakeTimeout)
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return
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}
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