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0b12cdcfd1
* Adding explicit MPL license for sub-package. This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Adding explicit MPL license for sub-package. This directory and its subdirectories (packages) contain files licensed with the MPLv2 `LICENSE` file in this directory and are intentionally licensed separately from the BSL `LICENSE` file at the root of this repository. * Updating the license from MPL to Business Source License. Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at www.hashicorp.com/licensing-faq, and details of the license at www.hashicorp.com/bsl. * add missing license headers * Update copyright file headers to BUS-1.1 * Fix test that expected exact offset on hcl file --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com> Co-authored-by: Sarah Thompson <sthompson@hashicorp.com> Co-authored-by: Brian Kassouf <bkassouf@hashicorp.com>
128 lines
2.9 KiB
Go
128 lines
2.9 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package command
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import (
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"context"
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"fmt"
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"net/http"
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"os"
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"strings"
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"github.com/hashicorp/vault/api"
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"github.com/mitchellh/cli"
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"github.com/posener/complete"
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"nhooyr.io/websocket"
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)
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var (
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_ cli.Command = (*EventsSubscribeCommands)(nil)
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_ cli.CommandAutocomplete = (*EventsSubscribeCommands)(nil)
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)
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type EventsSubscribeCommands struct {
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*BaseCommand
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}
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func (c *EventsSubscribeCommands) Synopsis() string {
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return "Subscribe to events"
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}
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func (c *EventsSubscribeCommands) Help() string {
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helpText := `
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Usage: vault events subscribe [-format=json] [-timeout=XYZs] eventType
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Subscribe to events of the given event type (topic). The events will be
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output to standard out.
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The output will be a JSON object serialized using the default protobuf
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JSON serialization format, with one line per event received.
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` + c.Flags().Help()
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return strings.TrimSpace(helpText)
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}
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func (c *EventsSubscribeCommands) Flags() *FlagSets {
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set := c.flagSet(FlagSetHTTP)
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return set
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}
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func (c *EventsSubscribeCommands) AutocompleteArgs() complete.Predictor {
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return nil
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}
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func (c *EventsSubscribeCommands) AutocompleteFlags() complete.Flags {
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return c.Flags().Completions()
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}
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func (c *EventsSubscribeCommands) Run(args []string) int {
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f := c.Flags()
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if err := f.Parse(args); err != nil {
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c.UI.Error(err.Error())
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return 1
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}
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args = f.Args()
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switch {
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case len(args) < 1:
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c.UI.Error(fmt.Sprintf("Not enough arguments (expected 1, got %d)", len(args)))
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return 1
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case len(args) > 1:
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c.UI.Error(fmt.Sprintf("Too many arguments (expected 1, got %d)", len(args)))
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return 1
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}
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client, err := c.Client()
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if err != nil {
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c.UI.Error(err.Error())
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return 2
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}
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err = c.subscribeRequest(client, "sys/events/subscribe/"+args[0])
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if err != nil {
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c.UI.Error(err.Error())
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return 1
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}
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return 0
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}
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func (c *EventsSubscribeCommands) subscribeRequest(client *api.Client, path string) error {
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r := client.NewRequest("GET", "/v1/"+path)
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u := r.URL
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if u.Scheme == "http" {
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u.Scheme = "ws"
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} else {
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u.Scheme = "wss"
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}
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q := u.Query()
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q.Set("json", "true")
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u.RawQuery = q.Encode()
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client.AddHeader("X-Vault-Token", client.Token())
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client.AddHeader("X-Vault-Namesapce", client.Namespace())
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ctx := context.Background()
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conn, resp, err := websocket.Dial(ctx, u.String(), &websocket.DialOptions{
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HTTPClient: client.CloneConfig().HttpClient,
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HTTPHeader: client.Headers(),
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})
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if err != nil {
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if resp != nil && resp.StatusCode == http.StatusNotFound {
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return fmt.Errorf("events endpoint not found; check `vault read sys/experiments` to see if an events experiment is available but disabled")
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}
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return err
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}
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defer conn.Close(websocket.StatusNormalClosure, "")
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for {
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_, message, err := conn.Read(ctx)
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if err != nil {
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return err
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}
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_, err = os.Stdout.Write(message)
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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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}
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