Sprint 6: JSON file persistence + real SSH terminal + V1 crypto/knownhosts integration

- go.mod replace directive for git.tukangketik.id/swanadiva/hostkeeper → ../../v1 - store/ package: JSON file persistence for hosts, snippets, keys, settings (~/Library/Application Support/hostkeeper/v2/) - model SSH fields: Hostname, Port, Username, AuthType, Password, KeyID - sshconn/ package: real SSH client via golang.org/x/crypto/ssh - Terminal WS: real SSH connection with fallback to mock shell - Dynamic host list in terminal (server-rendered JSON script tag) - All mock data defaults removed from model packages - Settings persist via store/settings.go
2026-07-07 13:53:50 +07:00
parent 04d9cfb096
commit fd7361aa14
21 changed files with 746 additions and 306 deletions
@@ -0,0 +1,138 @@
+package sshconn
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"os"
+	"time"
+
+	"git.tukangketik.id/swanadiva/hostkeeper/v2/internal/model"
+	gossh "golang.org/x/crypto/ssh"
+)
+
+type Client struct {
+	Host     model.Host
+	client   *gossh.Client
+	session  *gossh.Session
+	stdin    io.WriteCloser
+	stdout   io.Reader
+	stderr   io.Reader
+}
+
+func Dial(host model.Host) (*Client, error) {
+	addr := net.JoinHostPort(host.Hostname, fmt.Sprintf("%d", host.Port))
+	if host.Hostname == "" {
+		addr = net.JoinHostPort(host.IP, "22")
+	}
+
+	config := &gossh.ClientConfig{
+		User:            host.Username,
+		HostKeyCallback: gossh.InsecureIgnoreHostKey(),
+		Timeout:         10 * time.Second,
+	}
+
+	switch host.AuthType {
+	case "password", "":
+		config.Auth = []gossh.AuthMethod{
+			gossh.Password(host.Password),
+		}
+	case "key":
+		key, err := loadPrivateKey(host.Password)
+		if err != nil {
+			return nil, fmt.Errorf("load key: %w", err)
+		}
+		config.Auth = []gossh.AuthMethod{
+			gossh.PublicKeys(key),
+		}
+	case "both":
+		key, err := loadPrivateKey(host.Password)
+		if err != nil {
+			return nil, fmt.Errorf("load key: %w", err)
+		}
+		config.Auth = []gossh.AuthMethod{
+			gossh.Password(host.Password),
+			gossh.PublicKeys(key),
+		}
+	default:
+		return nil, fmt.Errorf("unknown auth type: %s", host.AuthType)
+	}
+
+	client, err := gossh.Dial("tcp", addr, config)
+	if err != nil {
+		return nil, fmt.Errorf("dial: %w", err)
+	}
+
+	return &Client{
+		Host:   host,
+		client: client,
+	}, nil
+}
+
+func (c *Client) Shell(stdin io.Reader, stdout io.Writer, stderr io.Writer, rows, cols int) error {
+	session, err := c.client.NewSession()
+	if err != nil {
+		return fmt.Errorf("session: %w", err)
+	}
+	c.session = session
+
+	modes := gossh.TerminalModes{
+		gossh.ECHO:          1,
+		gossh.TTY_OP_ISPEED: 14400,
+		gossh.TTY_OP_OSPEED: 14400,
+	}
+
+	if err := session.RequestPty("xterm-256color", rows, cols, modes); err != nil {
+		return fmt.Errorf("pty: %w", err)
+	}
+
+	c.stdin, _ = session.StdinPipe()
+	c.stdout, _ = session.StdoutPipe()
+	c.stderr, _ = session.StderrPipe()
+
+	go io.Copy(stdout, c.stdout)
+	go io.Copy(stderr, c.stderr)
+	go io.Copy(c.stdin, stdin)
+
+	if err := session.Shell(); err != nil {
+		return fmt.Errorf("shell: %w", err)
+	}
+
+	return session.Wait()
+}
+
+func (c *Client) Resize(rows, cols int) error {
+	if c.session == nil {
+		return nil
+	}
+	return c.session.WindowChange(rows, cols)
+}
+
+func (c *Client) Close() error {
+	if c.session != nil {
+		c.session.Close()
+	}
+	return c.client.Close()
+}
+
+func (c *Client) IsConnected() bool {
+	return c.client != nil
+}
+
+func loadPrivateKey(keyContent string) (gossh.Signer, error) {
+	if keyContent == "" {
+		paths := []string{
+			os.ExpandEnv("$HOME/.ssh/id_ed25519"),
+			os.ExpandEnv("$HOME/.ssh/id_rsa"),
+			os.ExpandEnv("$HOME/.ssh/id_ecdsa"),
+		}
+		for _, p := range paths {
+			data, err := os.ReadFile(p)
+			if err == nil {
+				return gossh.ParsePrivateKey(data)
+			}
+		}
+		return nil, fmt.Errorf("no SSH key found")
+	}
+	return gossh.ParsePrivateKey([]byte(keyContent))
+}