1package server
2
3import (
4 "context"
5 "fmt"
6 "log"
7 "time"
8
9 cm "github.com/charmbracelet/soft-serve/server/cmd"
10 "github.com/charmbracelet/soft-serve/server/config"
11 "github.com/charmbracelet/soft-serve/server/git/daemon"
12 gm "github.com/charmbracelet/soft-serve/server/git/ssh"
13 "github.com/charmbracelet/wish"
14 bm "github.com/charmbracelet/wish/bubbletea"
15 lm "github.com/charmbracelet/wish/logging"
16 rm "github.com/charmbracelet/wish/recover"
17 "github.com/gliderlabs/ssh"
18 "github.com/muesli/termenv"
19 "golang.org/x/sync/errgroup"
20)
21
22// Server is the Soft Serve server.
23type Server struct {
24 SSHServer *ssh.Server
25 GitServer *daemon.Daemon
26 Config *config.Config
27}
28
29// NewServer returns a new *ssh.Server configured to serve Soft Serve. The SSH
30// server key-pair will be created if none exists. An initial admin SSH public
31// key can be provided with authKey. If authKey is provided, access will be
32// restricted to that key. If authKey is not provided, the server will be
33// publicly writable until configured otherwise by cloning the `config` repo.
34func NewServer(cfg *config.Config) *Server {
35 s := &Server{Config: cfg}
36 mw := []wish.Middleware{
37 rm.MiddlewareWithLogger(
38 log.Default(),
39 // BubbleTea middleware.
40 bm.MiddlewareWithProgramHandler(SessionHandler(cfg), termenv.ANSI256),
41 // Command middleware must come after the git middleware.
42 cm.Middleware(cfg),
43 // Git middleware.
44 gm.Middleware(cfg.RepoPath(), cfg),
45 // Logging middleware must be last to be executed first.
46 lm.Middleware(),
47 ),
48 }
49
50 opts := []ssh.Option{ssh.PublicKeyAuth(cfg.PublicKeyHandler)}
51 if cfg.SSH.AllowKeyless {
52 opts = append(opts, ssh.KeyboardInteractiveAuth(cfg.KeyboardInteractiveHandler))
53 }
54 if cfg.SSH.AllowPassword {
55 opts = append(opts, ssh.PasswordAuth(cfg.PasswordHandler))
56 }
57 opts = append(opts,
58 wish.WithAddress(fmt.Sprintf("%s:%d", cfg.Host, cfg.SSH.Port)),
59 wish.WithHostKeyPath(cfg.PrivateKeyPath()),
60 wish.WithMiddleware(mw...),
61 )
62 sh, err := wish.NewServer(opts...)
63 if err != nil {
64 log.Fatalln(err)
65 }
66 if cfg.SSH.MaxTimeout > 0 {
67 sh.MaxTimeout = time.Duration(cfg.SSH.MaxTimeout) * time.Second
68 }
69 if cfg.SSH.IdleTimeout > 0 {
70 sh.IdleTimeout = time.Duration(cfg.SSH.IdleTimeout) * time.Second
71 }
72 s.SSHServer = sh
73 d, err := daemon.NewDaemon(cfg)
74 if err != nil {
75 log.Fatalln(err)
76 }
77 s.GitServer = d
78 return s
79}
80
81// Reload reloads the server configuration.
82func (s *Server) Reload() error {
83 return nil
84 // return s.config.Reload()
85}
86
87// Start starts the SSH server.
88func (s *Server) Start() error {
89 var errg errgroup.Group
90 errg.Go(func() error {
91 log.Printf("Starting Git server on %s:%d", s.Config.Host, s.Config.Git.Port)
92 if err := s.GitServer.Start(); err != daemon.ErrServerClosed {
93 return err
94 }
95 return nil
96 })
97 errg.Go(func() error {
98 log.Printf("Starting SSH server on %s:%d", s.Config.Host, s.Config.SSH.Port)
99 if err := s.SSHServer.ListenAndServe(); err != ssh.ErrServerClosed {
100 return err
101 }
102 return nil
103 })
104 return errg.Wait()
105}
106
107// Shutdown lets the server gracefully shutdown.
108func (s *Server) Shutdown(ctx context.Context) error {
109 var errg errgroup.Group
110 errg.Go(func() error {
111 return s.SSHServer.Shutdown(ctx)
112 })
113 errg.Go(func() error {
114 return s.GitServer.Shutdown(ctx)
115 })
116 return errg.Wait()
117}
118
119// Close closes the SSH server.
120func (s *Server) Close() error {
121 var errg errgroup.Group
122 errg.Go(func() error {
123 return s.SSHServer.Close()
124 })
125 errg.Go(func() error {
126 return s.GitServer.Close()
127 })
128 return errg.Wait()
129}