forked from canonical/lxd
/
config_trust.go
430 lines (347 loc) · 9.59 KB
/
config_trust.go
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package main
import (
"crypto/x509"
"encoding/base64"
"encoding/pem"
"fmt"
"io/ioutil"
"os"
"sort"
"strings"
"github.com/spf13/cobra"
"gopkg.in/yaml.v2"
"github.com/lxc/lxd/lxc/utils"
"github.com/lxc/lxd/shared"
"github.com/lxc/lxd/shared/api"
cli "github.com/lxc/lxd/shared/cmd"
"github.com/lxc/lxd/shared/i18n"
"github.com/lxc/lxd/shared/termios"
)
type cmdConfigTrust struct {
global *cmdGlobal
config *cmdConfig
}
func (c *cmdConfigTrust) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("trust")
cmd.Short = i18n.G("Manage trusted clients")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Manage trusted clients`))
// Add
configTrustAddCmd := cmdConfigTrustAdd{global: c.global, config: c.config, configTrust: c}
cmd.AddCommand(configTrustAddCmd.Command())
// Edit
configTrustEditCmd := cmdConfigTrustEdit{global: c.global, config: c.config, configTrust: c}
cmd.AddCommand(configTrustEditCmd.Command())
// List
configTrustListCmd := cmdConfigTrustList{global: c.global, config: c.config, configTrust: c}
cmd.AddCommand(configTrustListCmd.Command())
// Remove
configTrustRemoveCmd := cmdConfigTrustRemove{global: c.global, config: c.config, configTrust: c}
cmd.AddCommand(configTrustRemoveCmd.Command())
// Show
configTrustShowCmd := cmdConfigTrustShow{global: c.global, config: c.config, configTrust: c}
cmd.AddCommand(configTrustShowCmd.Command())
// Workaround for subcommand usage errors. See: https://github.com/spf13/cobra/issues/706
cmd.Args = cobra.NoArgs
cmd.Run = func(cmd *cobra.Command, args []string) { cmd.Usage() }
return cmd
}
// Add
type cmdConfigTrustAdd struct {
global *cmdGlobal
config *cmdConfig
configTrust *cmdConfigTrust
flagName string
flagProjects string
flagRestricted bool
}
func (c *cmdConfigTrustAdd) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("add", i18n.G("[<remote>:] <cert>"))
cmd.Short = i18n.G("Add new trusted clients")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Add new trusted clients`))
cmd.Flags().BoolVar(&c.flagRestricted, "restricted", false, i18n.G("Restrict the certificate to one or more projects"))
cmd.Flags().StringVar(&c.flagProjects, "projects", "", i18n.G("List of projects to restrict the certificate to")+"``")
cmd.Flags().StringVar(&c.flagName, "name", "", i18n.G("Alternative certificate name")+"``")
cmd.RunE = c.Run
return cmd
}
func (c *cmdConfigTrustAdd) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 2)
if exit {
return err
}
// Parse remote
remote := ""
if len(args) > 0 {
remote = args[0]
}
resources, err := c.global.ParseServers(remote)
if err != nil {
return err
}
resource := resources[0]
// Load the certificate.
fname := args[len(args)-1]
if fname == "-" {
fname = "/dev/stdin"
} else {
fname = shared.HostPathFollow(fname)
}
var name string
if c.flagName != "" {
name = c.flagName
} else {
name, _ = shared.SplitExt(fname)
}
// Add trust relationship.
x509Cert, err := shared.ReadCert(fname)
if err != nil {
return err
}
cert := api.CertificatesPost{}
cert.Certificate = base64.StdEncoding.EncodeToString(x509Cert.Raw)
cert.Name = name
cert.Type = api.CertificateTypeClient
cert.Restricted = c.flagRestricted
if c.flagProjects != "" {
cert.Projects = strings.Split(c.flagProjects, ",")
}
return resource.server.CreateCertificate(cert)
}
// Edit
type cmdConfigTrustEdit struct {
global *cmdGlobal
config *cmdConfig
configTrust *cmdConfigTrust
}
func (c *cmdConfigTrustEdit) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("edit", i18n.G("[<remote>:]<fingerprint>"))
cmd.Short = i18n.G("Edit trust configurations as YAML")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Edit trust configurations as YAML`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdConfigTrustEdit) helpTemplate() string {
return i18n.G(
`### This is a YAML representation of the certificate.
### Any line starting with a '# will be ignored.
###
### Note that the fingerprint is shown but cannot be changed`)
}
func (c *cmdConfigTrustEdit) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 1)
if exit {
return err
}
// Parse remote
resources, err := c.global.ParseServers(args[0])
if err != nil {
return err
}
resource := resources[0]
if resource.name == "" {
return fmt.Errorf(i18n.G("Missing certificate fingerprint"))
}
// If stdin isn't a terminal, read text from it
if !termios.IsTerminal(getStdinFd()) {
contents, err := ioutil.ReadAll(os.Stdin)
if err != nil {
return err
}
newdata := api.CertificatePut{}
err = yaml.Unmarshal(contents, &newdata)
if err != nil {
return err
}
return resource.server.UpdateCertificate(resource.name, newdata, "")
}
// Extract the current value
cert, etag, err := resource.server.GetCertificate(resource.name)
if err != nil {
return err
}
data, err := yaml.Marshal(&cert)
if err != nil {
return err
}
// Spawn the editor
content, err := shared.TextEditor("", []byte(c.helpTemplate()+"\n\n"+string(data)))
if err != nil {
return err
}
for {
// Parse the text received from the editor
newdata := api.CertificatePut{}
err = yaml.Unmarshal(content, &newdata)
if err == nil {
err = resource.server.UpdateCertificate(resource.name, newdata, etag)
}
// Respawn the editor
if err != nil {
fmt.Fprintf(os.Stderr, i18n.G("Config parsing error: %s")+"\n", err)
fmt.Println(i18n.G("Press enter to open the editor again or ctrl+c to abort change"))
_, err := os.Stdin.Read(make([]byte, 1))
if err != nil {
return err
}
content, err = shared.TextEditor("", content)
if err != nil {
return err
}
continue
}
break
}
return nil
}
// List
type cmdConfigTrustList struct {
global *cmdGlobal
config *cmdConfig
configTrust *cmdConfigTrust
flagFormat string
}
func (c *cmdConfigTrustList) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("list", i18n.G("[<remote>:]"))
cmd.Aliases = []string{"ls"}
cmd.Short = i18n.G("List trusted clients")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`List trusted clients`))
cmd.Flags().StringVarP(&c.flagFormat, "format", "f", "table", i18n.G("Format (csv|json|table|yaml)")+"``")
cmd.RunE = c.Run
return cmd
}
func (c *cmdConfigTrustList) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 0, 1)
if exit {
return err
}
// Parse remote
remote := ""
if len(args) > 0 {
remote = args[0]
}
resources, err := c.global.ParseServers(remote)
if err != nil {
return err
}
resource := resources[0]
// List trust relationships
trust, err := resource.server.GetCertificates()
if err != nil {
return err
}
data := [][]string{}
for _, cert := range trust {
fp := cert.Fingerprint[0:12]
certBlock, _ := pem.Decode([]byte(cert.Certificate))
if certBlock == nil {
return fmt.Errorf(i18n.G("Invalid certificate"))
}
tlsCert, err := x509.ParseCertificate(certBlock.Bytes)
if err != nil {
return err
}
const layout = "Jan 2, 2006 at 3:04pm (MST)"
issue := tlsCert.NotBefore.Format(layout)
expiry := tlsCert.NotAfter.Format(layout)
data = append(data, []string{cert.Type, cert.Name, tlsCert.Subject.CommonName, fp, issue, expiry})
}
sort.Sort(stringList(data))
header := []string{
i18n.G("TYPE"),
i18n.G("NAME"),
i18n.G("COMMON NAME"),
i18n.G("FINGERPRINT"),
i18n.G("ISSUE DATE"),
i18n.G("EXPIRY DATE"),
}
return utils.RenderTable(c.flagFormat, header, data, trust)
}
// Remove
type cmdConfigTrustRemove struct {
global *cmdGlobal
config *cmdConfig
configTrust *cmdConfigTrust
}
func (c *cmdConfigTrustRemove) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("remove", i18n.G("[<remote>:] <hostname|fingerprint>"))
cmd.Aliases = []string{"rm"}
cmd.Short = i18n.G("Remove trusted clients")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Remove trusted clients`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdConfigTrustRemove) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 2)
if exit {
return err
}
// Parse remote
remote := ""
if len(args) > 0 {
remote = args[0]
}
resources, err := c.global.ParseServers(remote)
if err != nil {
return err
}
resource := resources[0]
// Remove trust relationship
return resource.server.DeleteCertificate(args[len(args)-1])
}
// Show
type cmdConfigTrustShow struct {
global *cmdGlobal
config *cmdConfig
configTrust *cmdConfigTrust
}
func (c *cmdConfigTrustShow) Command() *cobra.Command {
cmd := &cobra.Command{}
cmd.Use = usage("show", i18n.G("[<remote>:]<fingerprint>"))
cmd.Short = i18n.G("Show trust configurations")
cmd.Long = cli.FormatSection(i18n.G("Description"), i18n.G(
`Show trust configurations`))
cmd.RunE = c.Run
return cmd
}
func (c *cmdConfigTrustShow) Run(cmd *cobra.Command, args []string) error {
// Quick checks.
exit, err := c.global.CheckArgs(cmd, args, 1, 1)
if exit {
return err
}
// Parse remote
resources, err := c.global.ParseServers(args[0])
if err != nil {
return err
}
resource := resources[0]
client := resource.server
if resource.name == "" {
return fmt.Errorf(i18n.G("Missing certificate fingerprint"))
}
// Show the certificate configuration
cert, _, err := client.GetCertificate(resource.name)
if err != nil {
return err
}
data, err := yaml.Marshal(&cert)
if err != nil {
return err
}
fmt.Printf("%s", data)
return nil
}