| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "flag" |
| 7 | "fmt" |
| 8 | "io" |
| 9 | "os" |
| 10 | "path/filepath" |
| 11 | "regexp" |
| 12 | "strings" |
| 13 | "time" |
| 14 | |
| 15 | "github.com/FelineStateMachine/tinyrelay/internal/agentrunner" |
| 16 | ) |
| 17 | |
| 18 | func agent(ctx context.Context, args []string, out io.Writer) error { |
| 19 | fs := flag.NewFlagSet("tiny agent" , flag.ContinueOnError) |
| 20 | fs.SetOutput(out) |
| 21 | relay := fs.String("relay" , "" , "Nostr relay WebSocket URL" ) |
| 22 | command := fs.String("command" , "" , "agent executable" ) |
| 23 | protocol := fs.String("protocol" , "acp" , "agent protocol: acp or command (text stdin/stdout)" ) |
| 24 | keyEnv := fs.String("key-env" , "TINY_AGENT_KEY" , "environment variable containing the agent hex key or nsec" ) |
| 25 | state := fs.String("state" , "" , "queue journal path (required)" ) |
| 26 | cwd := fs.String("cwd" , "." , "agent working directory" ) |
| 27 | timeout := fs.Duration("timeout" , 30*time.Minute, "maximum task and approval wait" ) |
| 28 | var rooms, commandArgs []string |
| 29 | fs.Func("room" , "authorized room id (repeatable)" , func(value string) error { |
| 30 | if !regexp.MustCompile(`^[a-z0-9_-]{1,64}$` ).MatchString(value) { |
| 31 | return errors.New("invalid room id" ) |
| 32 | } |
| 33 | rooms = append(rooms, value) |
| 34 | return nil |
| 35 | }) |
| 36 | fs.Func("arg" , "argument passed directly to the agent (repeatable)" , func(value string) error { commandArgs = append(commandArgs, value); return nil }) |
| 37 | if err := fs.Parse(args); err != nil { |
| 38 | return err |
| 39 | } |
| 40 | if *relay == "" || *command == "" || *state == "" || len(rooms) == 0 { |
| 41 | return errors.New("agent requires --relay, --room, --command and --state" ) |
| 42 | } |
| 43 | if fs.NArg() != 0 || (*protocol != "acp" && *protocol != "command" ) || *timeout <= 0 { |
| 44 | return errors.New("invalid agent options" ) |
| 45 | } |
| 46 | secret, err := secretKey(os.Getenv(*keyEnv)) |
| 47 | if err != nil { |
| 48 | return fmt.Errorf("agent key: %w" , err) |
| 49 | } |
| 50 | directory, err := filepath.Abs(*cwd) |
| 51 | if err != nil { |
| 52 | return err |
| 53 | } |
| 54 | info, err := os.Stat(directory) |
| 55 | if err != nil || !info.IsDir() { |
| 56 | return errors.New("agent working directory does not exist" ) |
| 57 | } |
| 58 | // The subprocess does not need the relay signing key. It receives messages |
| 59 | // through stdio and returns requests and output to this signing boundary. |
| 60 | environment := []string{} |
| 61 | for _, entry := range os.Environ() { |
| 62 | if !strings.HasPrefix(entry, *keyEnv+"=" ) { |
| 63 | environment = append(environment, entry) |
| 64 | } |
| 65 | } |
| 66 | log := func(err error) { fmt.Fprintln(out, err) } |
| 67 | return agentrunner.Serve(ctx, agentrunner.ServiceOptions{RelayURL: *relay, Secret: secret, Rooms: rooms, StatePath: *state, Timeout: *timeout, Log: log, Process: agentrunner.ProcessOptions{Command: *command, Args: commandArgs, Env: environment, CWD: directory, Protocol: *protocol}}) |
| 68 | } |