148 lines
3.6 KiB
Go
148 lines
3.6 KiB
Go
package rules
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import (
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"flag"
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"fmt"
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"io"
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"strings"
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"github.com/mitchellh/cli"
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"github.com/hashicorp/consul/acl"
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aclhelpers "github.com/hashicorp/consul/command/acl"
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"github.com/hashicorp/consul/command/flags"
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"github.com/hashicorp/consul/command/helpers"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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help string
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tokenAccessor bool
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tokenSecret bool
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// testStdin is the input for testing
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testStdin io.Reader
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.flags.BoolVar(&c.tokenAccessor, "token-accessor", false, "Specifies that "+
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"the TRANSLATE argument refers to a ACL token AccessorID. "+
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"The rules to translate will then be read from the retrieved token")
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c.flags.BoolVar(&c.tokenSecret, "token-secret", false,
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"Specifies that the TRANSLATE argument refers to a ACL token SecretID. "+
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"The rules to translate will then be read from the retrieved token")
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c.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.ServerFlags())
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c.help = flags.Usage(help, c.flags)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.Parse(args); err != nil {
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return 1
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}
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if c.tokenSecret && c.tokenAccessor {
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c.UI.Error(fmt.Sprintf("Error - cannot specify both -token-secret and -token-accessor"))
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return 1
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}
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data, err := c.dataFromArgs(c.flags.Args())
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error! %v", err))
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return 1
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}
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if c.tokenSecret || c.tokenAccessor {
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client, err := c.http.APIClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connecting to Consul Agent: %s", err))
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return 1
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}
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// Trim whitespace and newlines (e.g. from echo without -n)
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data = strings.TrimSpace(data)
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// It is not a bug that this doesn't look at tokenAccessor. We already know that we want the rules from
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// a token and just need to tell the helper function whether it should be retrieved by its secret or accessor
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if rules, err := aclhelpers.GetRulesFromLegacyToken(client, data, c.tokenSecret); err != nil {
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c.UI.Error(err.Error())
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return 1
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} else {
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data = rules
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}
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}
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translated, err := acl.TranslateLegacyRules([]byte(data))
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error translating rules: %s", err))
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return 1
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}
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c.UI.Info(string(translated))
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return 0
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}
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func (c *cmd) dataFromArgs(args []string) (string, error) {
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switch len(args) {
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case 0:
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return "", fmt.Errorf("Missing TRANSLATE argument")
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case 1:
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data, err := helpers.LoadDataSource(args[0], c.testStdin)
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if err != nil {
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return "", err
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}
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return data, nil
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default:
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return "", fmt.Errorf("Too many arguments: expected 1 got %d", len(args))
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}
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}
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func (c *cmd) Synopsis() string {
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return synopsis
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}
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func (c *cmd) Help() string {
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return flags.Usage(c.help, nil)
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}
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const synopsis = "Translate the legacy rule syntax into the current syntax"
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const help = `
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Usage: consul acl translate-rules [options] TRANSLATE
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Translates the legacy ACL rule syntax into the current syntax.
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Translate rules within a file:
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$ consul acl translate-rules @rules.hcl
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Translate rules from stdin:
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$ consul acl translate-rules -
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Translate rules from a string argument:
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$ consul acl translate-rules 'key "" { policy = "write"}'
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Translate rules for a legacy ACL token using its SecretID passed from stdin:
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$ consul acl translate-rules -token-secret -
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Translate rules for a legacy ACL token using its AccessorID:
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$ consul acl translate-rules -token-accessor 429cd746-03d5-4bbb-a83a-18b164171c89
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`
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