forked from TrueCloudLab/certificates
113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
package commands
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import (
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"bytes"
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"context"
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"fmt"
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"io/ioutil"
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"net"
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"net/http"
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"os"
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"unicode"
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"github.com/pkg/errors"
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"github.com/smallstep/certificates/authority/config"
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"github.com/smallstep/certificates/ca"
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"github.com/urfave/cli"
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"go.step.sm/cli-utils/errs"
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)
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// AppCommand is the action used as the top action.
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var AppCommand = cli.Command{
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Name: "start",
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Action: appAction,
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UsageText: `**step-ca** <config>
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[**--password-file**=<file>] [**--issuer-password-file**=<file>] [**--resolver**=<addr>]`,
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "password-file",
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Usage: `path to the <file> containing the password to decrypt the
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intermediate private key.`,
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},
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cli.StringFlag{
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Name: "issuer-password-file",
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Usage: `path to the <file> containing the password to decrypt the
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certificate issuer private key used in the RA mode.`,
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},
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cli.StringFlag{
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Name: "resolver",
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Usage: "address of a DNS resolver to be used instead of the default.",
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},
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},
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}
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// AppAction is the action used when the top command runs.
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func appAction(ctx *cli.Context) error {
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passFile := ctx.String("password-file")
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issuerPassFile := ctx.String("issuer-password-file")
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resolver := ctx.String("resolver")
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// If zero cmd line args show help, if >1 cmd line args show error.
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if ctx.NArg() == 0 {
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return cli.ShowAppHelp(ctx)
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}
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if err := errs.NumberOfArguments(ctx, 1); err != nil {
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return err
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}
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configFile := ctx.Args().Get(0)
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config, err := config.LoadConfiguration(configFile)
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if err != nil {
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fatal(err)
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}
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var password []byte
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if passFile != "" {
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if password, err = ioutil.ReadFile(passFile); err != nil {
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fatal(errors.Wrapf(err, "error reading %s", passFile))
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}
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password = bytes.TrimRightFunc(password, unicode.IsSpace)
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}
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var issuerPassword []byte
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if issuerPassFile != "" {
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if issuerPassword, err = ioutil.ReadFile(issuerPassFile); err != nil {
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fatal(errors.Wrapf(err, "error reading %s", issuerPassFile))
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}
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issuerPassword = bytes.TrimRightFunc(issuerPassword, unicode.IsSpace)
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}
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// replace resolver if requested
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if resolver != "" {
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net.DefaultResolver.PreferGo = true
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net.DefaultResolver.Dial = func(ctx context.Context, network, address string) (net.Conn, error) {
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return net.Dial(network, resolver)
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}
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}
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srv, err := ca.New(config,
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ca.WithConfigFile(configFile),
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ca.WithPassword(password),
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ca.WithIssuerPassword(issuerPassword))
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if err != nil {
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fatal(err)
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}
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go ca.StopReloaderHandler(srv)
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if err = srv.Run(); err != nil && err != http.ErrServerClosed {
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fatal(err)
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}
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return nil
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}
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// fatal writes the passed error on the standard error and exits with the exit
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// code 1. If the environment variable STEPDEBUG is set to 1 it shows the
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// stack trace of the error.
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func fatal(err error) {
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if os.Getenv("STEPDEBUG") == "1" {
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fmt.Fprintf(os.Stderr, "%+v\n", err)
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} else {
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fmt.Fprintln(os.Stderr, err)
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}
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os.Exit(2)
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}
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