|
| 1 | +package cli |
| 2 | + |
| 3 | +import ( |
| 4 | + "fmt" |
| 5 | + "net" |
| 6 | + "net/http" |
| 7 | + "net/url" |
| 8 | + |
| 9 | + "github.com/google/uuid" |
| 10 | + "github.com/spf13/cobra" |
| 11 | + "golang.org/x/xerrors" |
| 12 | + |
| 13 | + "github.com/coder/coder/cli/cliflag" |
| 14 | + "github.com/coder/coder/cli/vscodeipc" |
| 15 | + "github.com/coder/coder/codersdk" |
| 16 | +) |
| 17 | + |
| 18 | +// vscodeipcCmd spawns a local HTTP server on the provided port that listens to messages. |
| 19 | +// It's made for use by the Coder VS Code extension. See: https://github.com/coder/vscode-coder |
| 20 | +func vscodeipcCmd() *cobra.Command { |
| 21 | + var ( |
| 22 | + rawURL string |
| 23 | + token string |
| 24 | + port uint16 |
| 25 | + ) |
| 26 | + cmd := &cobra.Command{ |
| 27 | + Use: "vscodeipc <workspace-agent>", |
| 28 | + Args: cobra.ExactArgs(1), |
| 29 | + SilenceUsage: true, |
| 30 | + Hidden: true, |
| 31 | + RunE: func(cmd *cobra.Command, args []string) error { |
| 32 | + if rawURL == "" { |
| 33 | + return xerrors.New("CODER_URL must be set!") |
| 34 | + } |
| 35 | + // token is validated in a header on each request to prevent |
| 36 | + // unauthenticated clients from connecting. |
| 37 | + if token == "" { |
| 38 | + return xerrors.New("CODER_TOKEN must be set!") |
| 39 | + } |
| 40 | + listener, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", port)) |
| 41 | + if err != nil { |
| 42 | + return xerrors.Errorf("listen: %w", err) |
| 43 | + } |
| 44 | + defer listener.Close() |
| 45 | + addr, ok := listener.Addr().(*net.TCPAddr) |
| 46 | + if !ok { |
| 47 | + return xerrors.Errorf("listener.Addr() is not a *net.TCPAddr: %T", listener.Addr()) |
| 48 | + } |
| 49 | + url, err := url.Parse(rawURL) |
| 50 | + if err != nil { |
| 51 | + return err |
| 52 | + } |
| 53 | + agentID, err := uuid.Parse(args[0]) |
| 54 | + if err != nil { |
| 55 | + return err |
| 56 | + } |
| 57 | + client := codersdk.New(url) |
| 58 | + client.SetSessionToken(token) |
| 59 | + |
| 60 | + handler, closer, err := vscodeipc.New(cmd.Context(), client, agentID, nil) |
| 61 | + if err != nil { |
| 62 | + return err |
| 63 | + } |
| 64 | + defer closer.Close() |
| 65 | + // nolint:gosec |
| 66 | + server := http.Server{ |
| 67 | + Handler: handler, |
| 68 | + } |
| 69 | + defer server.Close() |
| 70 | + _, _ = fmt.Fprintf(cmd.OutOrStdout(), "%s\n", addr.String()) |
| 71 | + errChan := make(chan error, 1) |
| 72 | + go func() { |
| 73 | + err := server.Serve(listener) |
| 74 | + errChan <- err |
| 75 | + }() |
| 76 | + select { |
| 77 | + case <-cmd.Context().Done(): |
| 78 | + return cmd.Context().Err() |
| 79 | + case err := <-errChan: |
| 80 | + return err |
| 81 | + } |
| 82 | + }, |
| 83 | + } |
| 84 | + cliflag.StringVarP(cmd.Flags(), &rawURL, "url", "u", "CODER_URL", "", "The URL of the Coder instance!") |
| 85 | + cliflag.StringVarP(cmd.Flags(), &token, "token", "t", "CODER_TOKEN", "", "The session token of the user!") |
| 86 | + cmd.Flags().Uint16VarP(&port, "port", "p", 0, "The port to listen on!") |
| 87 | + return cmd |
| 88 | +} |
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