mirror of
https://github.com/42wim/matterbridge.git
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77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
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package sshd
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import (
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"crypto/rand"
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"crypto/rsa"
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"io"
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"golang.org/x/crypto/ssh"
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)
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// NewRandomSigner generates a random key of a desired bit length.
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func NewRandomSigner(bits int) (ssh.Signer, error) {
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key, err := rsa.GenerateKey(rand.Reader, bits)
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if err != nil {
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return nil, err
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}
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return ssh.NewSignerFromKey(key)
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}
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// NewClientConfig creates a barebones ssh.ClientConfig to be used with ssh.Dial.
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func NewClientConfig(name string) *ssh.ClientConfig {
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return &ssh.ClientConfig{
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User: name,
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Auth: []ssh.AuthMethod{
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ssh.KeyboardInteractive(func(user, instruction string, questions []string, echos []bool) (answers []string, err error) {
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return
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}),
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},
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HostKeyCallback: ssh.InsecureIgnoreHostKey(),
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}
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}
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// ConnectShell makes a barebones SSH client session, used for testing.
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func ConnectShell(host string, name string, handler func(r io.Reader, w io.WriteCloser) error) error {
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config := NewClientConfig(name)
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conn, err := ssh.Dial("tcp", host, config)
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if err != nil {
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return err
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}
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defer conn.Close()
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session, err := conn.NewSession()
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if err != nil {
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return err
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}
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defer session.Close()
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in, err := session.StdinPipe()
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if err != nil {
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return err
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}
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out, err := session.StdoutPipe()
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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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err = session.RequestPty("xterm", 80, 40, ssh.TerminalModes{})
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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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err = session.Shell()
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if err != nil {
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return err
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}
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_, err = session.SendRequest("ping", true, nil)
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if err != nil {
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return err
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}
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return handler(out, in)
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}
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