change func def for getSSHHosts

* continue to return all hosts if injection method not specified
This commit is contained in:
max furman 2019-11-20 12:59:48 -08:00
parent 11c8639782
commit f92bb06b6c
4 changed files with 21 additions and 19 deletions

View file

@ -2,6 +2,7 @@ package api
import (
"context"
"crypto/x509"
"encoding/base64"
"encoding/json"
"net/http"
@ -23,7 +24,7 @@ type SSHAuthority interface {
GetSSHFederation() (*authority.SSHKeys, error)
GetSSHConfig(typ string, data map[string]string) ([]templates.Output, error)
CheckSSHHost(principal string) (bool, error)
GetSSHHosts(user string) ([]string, error)
GetSSHHosts(cert *x509.Certificate) ([]string, error)
GetSSHBastion(user string, hostname string) (*authority.Bastion, error)
}
@ -436,18 +437,12 @@ func (h *caHandler) SSHCheckHost(w http.ResponseWriter, r *http.Request) {
// SSHGetHosts is the HTTP handler that returns a list of valid ssh hosts.
func (h *caHandler) SSHGetHosts(w http.ResponseWriter, r *http.Request) {
if r.TLS == nil || len(r.TLS.PeerCertificates) == 0 {
WriteError(w, BadRequest(errors.New("missing peer certificate")))
return
var cert *x509.Certificate
if r.TLS != nil && len(r.TLS.PeerCertificates) > 0 {
cert = r.TLS.PeerCertificates[0]
}
cert := r.TLS.PeerCertificates[0]
email := cert.EmailAddresses[0]
if len(email) == 0 {
WriteError(w, BadRequest(errors.New("client certificate missing email SAN")))
return
}
hosts, err := h.Authority.GetSSHHosts(email)
hosts, err := h.Authority.GetSSHHosts(cert)
if err != nil {
WriteError(w, InternalServerError(err))
return

View file

@ -41,7 +41,7 @@ type Authority struct {
initOnce bool
// Custom functions
sshBastionFunc func(user, hostname string) (*Bastion, error)
sshGetHostsFunc func(user string) ([]string, error)
sshGetHostsFunc func(cert *x509.Certificate) ([]string, error)
getIdentityFunc provisioner.GetIdentityFunc
}

View file

@ -1,6 +1,8 @@
package authority
import (
"crypto/x509"
"github.com/smallstep/certificates/authority/provisioner"
"github.com/smallstep/certificates/db"
)
@ -34,7 +36,7 @@ func WithSSHBastionFunc(fn func(user, host string) (*Bastion, error)) Option {
// WithSSHGetHosts sets a custom function to get the bastion for a
// given user-host pair.
func WithSSHGetHosts(fn func(user string) ([]string, error)) Option {
func WithSSHGetHosts(fn func(cert *x509.Certificate) ([]string, error)) Option {
return func(a *Authority) {
a.sshGetHostsFunc = fn
}

View file

@ -3,6 +3,7 @@ package authority
import (
"context"
"crypto/rand"
"crypto/x509"
"encoding/binary"
"net/http"
"strings"
@ -673,14 +674,18 @@ func (a *Authority) CheckSSHHost(principal string) (bool, error) {
}
// GetSSHHosts returns a list of valid host principals.
func (a *Authority) GetSSHHosts(email string) ([]string, error) {
if a.sshBastionFunc != nil {
return a.sshGetHostsFunc(email)
func (a *Authority) GetSSHHosts(cert *x509.Certificate) ([]string, error) {
if a.sshGetHostsFunc != nil {
return a.sshGetHostsFunc(cert)
}
hosts, err := a.db.GetSSHHostPrincipals()
if err != nil {
return nil, &apiError{
err: errors.New("getSSHHosts is not configured"),
code: http.StatusNotFound,
err: errors.Wrap(err, "getSSHHosts"),
code: http.StatusInternalServerError,
}
}
return hosts, nil
}
func (a *Authority) getAddUserPrincipal() (cmd string) {