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589 lines
19 KiB
Go
589 lines
19 KiB
Go
package provisioner
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import (
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"context"
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"crypto"
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"crypto/rand"
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"encoding/base64"
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"errors"
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"fmt"
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"net/http"
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"testing"
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"time"
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"golang.org/x/crypto/ssh"
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"go.step.sm/crypto/jose"
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"go.step.sm/crypto/pemutil"
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"github.com/smallstep/assert"
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"github.com/smallstep/certificates/api/render"
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)
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func TestSSHPOP_Getters(t *testing.T) {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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id := "sshpop/" + p.Name
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if got := p.GetID(); got != id {
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t.Errorf("SSHPOP.GetID() = %v, want %v", got, id)
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}
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if got := p.GetName(); got != p.Name {
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t.Errorf("SSHPOP.GetName() = %v, want %v", got, p.Name)
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}
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if got := p.GetType(); got != TypeSSHPOP {
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t.Errorf("SSHPOP.GetType() = %v, want %v", got, TypeSSHPOP)
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}
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kid, key, ok := p.GetEncryptedKey()
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if kid != "" || key != "" || ok == true {
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t.Errorf("SSHPOP.GetEncryptedKey() = (%v, %v, %v), want (%v, %v, %v)",
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kid, key, ok, "", "", false)
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}
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}
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func createSSHCert(cert *ssh.Certificate, signer ssh.Signer) (*ssh.Certificate, *jose.JSONWebKey, error) {
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now := time.Now()
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jwk, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "foo", 0)
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if err != nil {
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return nil, nil, err
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}
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cert.Key, err = ssh.NewPublicKey(jwk.Public().Key)
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if err != nil {
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return nil, nil, err
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}
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if cert.ValidAfter == 0 {
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cert.ValidAfter = uint64(now.Unix())
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}
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if cert.ValidBefore == 0 {
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cert.ValidBefore = uint64(now.Add(time.Hour).Unix())
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}
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if err := cert.SignCert(rand.Reader, signer); err != nil {
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return nil, nil, err
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}
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return cert, jwk, nil
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}
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func generateSSHPOPToken(p Interface, cert *ssh.Certificate, jwk *jose.JSONWebKey) (string, error) {
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return generateToken("foo", p.GetName(), testAudiences.Sign[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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}
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func TestSSHPOP_authorizeToken(t *testing.T) {
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key, err := pemutil.Read("./testdata/secrets/ssh_user_ca_key")
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assert.FatalError(t, err)
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signer, ok := key.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh signing key to crypto signer")
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sshSigner, err := ssh.NewSignerFromSigner(signer)
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assert.FatalError(t, err)
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type test struct {
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p *SSHPOP
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token string
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err error
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code int
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}
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tests := map[string]func(*testing.T) test{
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"fail/bad-token": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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return test{
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p: p,
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token: "foo",
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; error extracting sshpop header from token: extractSSHPOPCert; error parsing token: "),
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}
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},
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"fail/cert-not-yet-valid": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{
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CertType: ssh.UserCert,
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ValidAfter: uint64(time.Now().Add(time.Minute).Unix()),
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}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateSSHPOPToken(p, cert, jwk)
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; sshpop certificate validAfter is in the future"),
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}
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},
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"fail/cert-past-validity": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{
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CertType: ssh.UserCert,
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ValidBefore: uint64(time.Now().Add(-time.Minute).Unix()),
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}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateSSHPOPToken(p, cert, jwk)
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; sshpop certificate validBefore is in the past"),
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}
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},
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"fail/no-signer-found": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.HostCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateSSHPOPToken(p, cert, jwk)
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; could not find valid ca signer to verify sshpop certificate"),
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}
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},
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"fail/error-parsing-claims-bad-sig": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, _, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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otherJWK, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "", 0)
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assert.FatalError(t, err)
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tok, err := generateSSHPOPToken(p, cert, otherJWK)
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; error parsing sshpop token claims"),
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}
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},
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"fail/invalid-claims-issuer": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("foo", "bar", testAudiences.Sign[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; invalid sshpop token"),
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}
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},
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"fail/invalid-audience": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("foo", p.GetName(), "invalid-aud", "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; sshpop token has invalid audience claim (aud)"),
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}
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},
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"fail/empty-subject": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("", p.GetName(), testAudiences.Sign[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.authorizeToken; sshpop token subject cannot be empty"),
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}
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},
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"ok": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateSSHPOPToken(p, cert, jwk)
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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}
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},
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}
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for name, tt := range tests {
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t.Run(name, func(t *testing.T) {
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tc := tt(t)
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if claims, err := tc.p.authorizeToken(tc.token, testAudiences.Sign, true); err != nil {
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var sc render.StatusCodedError
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if assert.True(t, errors.As(err, &sc), "error does not implement StatusCodedError interface") {
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assert.Equals(t, sc.StatusCode(), tc.code)
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}
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if assert.NotNil(t, tc.err) {
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assert.HasPrefix(t, err.Error(), tc.err.Error())
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}
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} else if assert.Nil(t, tc.err) {
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assert.NotNil(t, claims)
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}
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})
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}
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}
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func TestSSHPOP_AuthorizeSSHRevoke(t *testing.T) {
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key, err := pemutil.Read("./testdata/secrets/ssh_user_ca_key")
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assert.FatalError(t, err)
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signer, ok := key.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh signing key to crypto signer")
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sshSigner, err := ssh.NewSignerFromSigner(signer)
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assert.FatalError(t, err)
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type test struct {
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p *SSHPOP
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token string
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err error
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code int
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}
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tests := map[string]func(*testing.T) test{
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"fail/bad-token": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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return test{
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p: p,
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token: "foo",
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.AuthorizeSSHRevoke: sshpop.authorizeToken; error extracting sshpop header from token: extractSSHPOPCert; error parsing token: "),
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}
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},
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"fail/subject-not-equal-serial": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("foo", p.GetName(), testAudiences.SSHRevoke[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusBadRequest,
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err: errors.New("sshpop token subject must be equivalent to sshpop certificate serial number"),
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}
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},
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"ok": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{Serial: 123455, CertType: ssh.UserCert}, sshSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("123455", p.GetName(), testAudiences.SSHRevoke[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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}
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},
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}
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for name, tt := range tests {
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t.Run(name, func(t *testing.T) {
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tc := tt(t)
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if err := tc.p.AuthorizeSSHRevoke(context.Background(), tc.token); err != nil {
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var sc render.StatusCodedError
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if assert.True(t, errors.As(err, &sc), "error does not implement StatusCodedError interface") {
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assert.Equals(t, sc.StatusCode(), tc.code)
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}
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if assert.NotNil(t, tc.err) {
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assert.HasPrefix(t, err.Error(), tc.err.Error())
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}
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} else {
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assert.Nil(t, tc.err)
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}
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})
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}
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}
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func TestSSHPOP_AuthorizeSSHRenew(t *testing.T) {
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key, err := pemutil.Read("./testdata/secrets/ssh_user_ca_key")
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assert.FatalError(t, err)
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userSigner, ok := key.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh user signing key to crypto signer")
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sshUserSigner, err := ssh.NewSignerFromSigner(userSigner)
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assert.FatalError(t, err)
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hostKey, err := pemutil.Read("./testdata/secrets/ssh_host_ca_key")
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assert.FatalError(t, err)
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hostSigner, ok := hostKey.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh host signing key to crypto signer")
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sshHostSigner, err := ssh.NewSignerFromSigner(hostSigner)
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assert.FatalError(t, err)
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type test struct {
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p *SSHPOP
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token string
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cert *ssh.Certificate
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err error
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code int
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}
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tests := map[string]func(*testing.T) test{
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"fail/bad-token": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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return test{
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p: p,
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token: "foo",
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.AuthorizeSSHRenew: sshpop.authorizeToken; error extracting sshpop header from token: extractSSHPOPCert; error parsing token: "),
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}
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},
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"fail/not-host-cert": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshUserSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("foo", p.GetName(), testAudiences.SSHRenew[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusBadRequest,
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err: errors.New("sshpop certificate must be a host ssh certificate"),
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}
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},
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"ok": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{Serial: 123455, CertType: ssh.HostCert}, sshHostSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("123455", p.GetName(), testAudiences.SSHRenew[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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cert: cert,
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}
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},
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}
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for name, tt := range tests {
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t.Run(name, func(t *testing.T) {
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tc := tt(t)
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if cert, err := tc.p.AuthorizeSSHRenew(context.Background(), tc.token); err != nil {
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if assert.NotNil(t, tc.err) {
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var sc render.StatusCodedError
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if assert.True(t, errors.As(err, &sc), "error does not implement StatusCodedError interface") {
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assert.Equals(t, sc.StatusCode(), tc.code)
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}
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assert.HasPrefix(t, err.Error(), tc.err.Error())
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}
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} else {
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if assert.Nil(t, tc.err) {
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assert.Equals(t, tc.cert.Nonce, cert.Nonce)
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}
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}
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})
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}
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}
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func TestSSHPOP_AuthorizeSSHRekey(t *testing.T) {
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key, err := pemutil.Read("./testdata/secrets/ssh_user_ca_key")
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assert.FatalError(t, err)
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userSigner, ok := key.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh user signing key to crypto signer")
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sshUserSigner, err := ssh.NewSignerFromSigner(userSigner)
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assert.FatalError(t, err)
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hostKey, err := pemutil.Read("./testdata/secrets/ssh_host_ca_key")
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assert.FatalError(t, err)
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hostSigner, ok := hostKey.(crypto.Signer)
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assert.Fatal(t, ok, "could not cast ssh host signing key to crypto signer")
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sshHostSigner, err := ssh.NewSignerFromSigner(hostSigner)
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assert.FatalError(t, err)
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type test struct {
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p *SSHPOP
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token string
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cert *ssh.Certificate
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err error
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code int
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}
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tests := map[string]func(*testing.T) test{
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"fail/bad-token": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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return test{
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p: p,
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token: "foo",
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code: http.StatusUnauthorized,
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err: errors.New("sshpop.AuthorizeSSHRekey: sshpop.authorizeToken; error extracting sshpop header from token: extractSSHPOPCert; error parsing token: "),
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}
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},
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"fail/not-host-cert": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{CertType: ssh.UserCert}, sshUserSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("foo", p.GetName(), testAudiences.SSHRekey[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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code: http.StatusBadRequest,
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err: errors.New("sshpop certificate must be a host ssh certificate"),
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}
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},
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"ok": func(t *testing.T) test {
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p, err := generateSSHPOP()
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assert.FatalError(t, err)
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cert, jwk, err := createSSHCert(&ssh.Certificate{Serial: 123455, CertType: ssh.HostCert}, sshHostSigner)
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assert.FatalError(t, err)
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tok, err := generateToken("123455", p.GetName(), testAudiences.SSHRekey[0], "",
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[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
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assert.FatalError(t, err)
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return test{
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p: p,
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token: tok,
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cert: cert,
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}
|
|
},
|
|
}
|
|
for name, tt := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
tc := tt(t)
|
|
if cert, opts, err := tc.p.AuthorizeSSHRekey(context.Background(), tc.token); err != nil {
|
|
if assert.NotNil(t, tc.err) {
|
|
var sc render.StatusCodedError
|
|
if assert.True(t, errors.As(err, &sc), "error does not implement StatusCodedError interface") {
|
|
assert.Equals(t, sc.StatusCode(), tc.code)
|
|
}
|
|
assert.HasPrefix(t, err.Error(), tc.err.Error())
|
|
}
|
|
} else {
|
|
if assert.Nil(t, tc.err) {
|
|
assert.Len(t, 4, opts)
|
|
for _, o := range opts {
|
|
switch v := o.(type) {
|
|
case Interface:
|
|
case *sshDefaultPublicKeyValidator:
|
|
case *sshCertDefaultValidator:
|
|
case *sshCertValidityValidator:
|
|
assert.Equals(t, v.Claimer, tc.p.ctl.Claimer)
|
|
default:
|
|
assert.FatalError(t, fmt.Errorf("unexpected sign option of type %T", v))
|
|
}
|
|
}
|
|
assert.Equals(t, tc.cert.Nonce, cert.Nonce)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSSHPOP_ExtractSSHPOPCert(t *testing.T) {
|
|
hostKey, err := pemutil.Read("./testdata/secrets/ssh_host_ca_key")
|
|
assert.FatalError(t, err)
|
|
hostSigner, ok := hostKey.(crypto.Signer)
|
|
assert.Fatal(t, ok, "could not cast ssh host signing key to crypto signer")
|
|
sshHostSigner, err := ssh.NewSignerFromSigner(hostSigner)
|
|
assert.FatalError(t, err)
|
|
|
|
type test struct {
|
|
token string
|
|
cert *ssh.Certificate
|
|
jwk *jose.JSONWebKey
|
|
err error
|
|
}
|
|
tests := map[string]func(*testing.T) test{
|
|
"fail/bad-token": func(t *testing.T) test {
|
|
return test{
|
|
token: "foo",
|
|
err: errors.New("extractSSHPOPCert; error parsing token"),
|
|
}
|
|
},
|
|
"fail/sshpop-missing": func(t *testing.T) test {
|
|
jwk, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "", 0)
|
|
assert.FatalError(t, err)
|
|
tok, err := generateToken("sub", "sshpop-provisioner", testAudiences.SSHRekey[0], "",
|
|
[]string{"test.smallstep.com"}, time.Now(), jwk)
|
|
assert.FatalError(t, err)
|
|
return test{
|
|
token: tok,
|
|
err: errors.New("extractSSHPOPCert; token missing sshpop header"),
|
|
}
|
|
},
|
|
"fail/wrong-sshpop-type": func(t *testing.T) test {
|
|
jwk, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "", 0)
|
|
assert.FatalError(t, err)
|
|
tok, err := generateToken("123455", "sshpop-provisioner", testAudiences.SSHRekey[0], "",
|
|
[]string{"test.smallstep.com"}, time.Now(), jwk, func(so *jose.SignerOptions) error {
|
|
so.WithHeader("sshpop", 12345)
|
|
return nil
|
|
})
|
|
assert.FatalError(t, err)
|
|
return test{
|
|
token: tok,
|
|
err: errors.New("extractSSHPOPCert; error unexpected type for sshpop header: "),
|
|
}
|
|
},
|
|
"fail/base64decode-error": func(t *testing.T) test {
|
|
jwk, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "", 0)
|
|
assert.FatalError(t, err)
|
|
tok, err := generateToken("123455", "sshpop-provisioner", testAudiences.SSHRekey[0], "",
|
|
[]string{"test.smallstep.com"}, time.Now(), jwk, func(so *jose.SignerOptions) error {
|
|
so.WithHeader("sshpop", "!@#$%^&*")
|
|
return nil
|
|
})
|
|
assert.FatalError(t, err)
|
|
return test{
|
|
token: tok,
|
|
err: errors.New("extractSSHPOPCert; error base64 decoding sshpop header: illegal base64"),
|
|
}
|
|
},
|
|
"fail/parsing-sshpop-pubkey": func(t *testing.T) test {
|
|
jwk, err := jose.GenerateJWK("EC", "P-256", "ES256", "sig", "", 0)
|
|
assert.FatalError(t, err)
|
|
tok, err := generateToken("123455", "sshpop-provisioner", testAudiences.SSHRekey[0], "",
|
|
[]string{"test.smallstep.com"}, time.Now(), jwk, func(so *jose.SignerOptions) error {
|
|
so.WithHeader("sshpop", base64.StdEncoding.EncodeToString([]byte("foo")))
|
|
return nil
|
|
})
|
|
assert.FatalError(t, err)
|
|
return test{
|
|
token: tok,
|
|
err: errors.New("extractSSHPOPCert; error parsing ssh public key"),
|
|
}
|
|
},
|
|
"ok": func(t *testing.T) test {
|
|
cert, jwk, err := createSSHCert(&ssh.Certificate{Serial: 123455, CertType: ssh.HostCert}, sshHostSigner)
|
|
|
|
assert.FatalError(t, err)
|
|
tok, err := generateToken("123455", "sshpop-provisioner", testAudiences.SSHRekey[0], "",
|
|
[]string{"test.smallstep.com"}, time.Now(), jwk, withSSHPOPFile(cert))
|
|
assert.FatalError(t, err)
|
|
return test{
|
|
token: tok,
|
|
jwk: jwk,
|
|
cert: cert,
|
|
}
|
|
},
|
|
}
|
|
for name, tt := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
tc := tt(t)
|
|
if cert, jwt, err := ExtractSSHPOPCert(tc.token); err != nil {
|
|
if assert.NotNil(t, tc.err) {
|
|
assert.HasPrefix(t, err.Error(), tc.err.Error())
|
|
}
|
|
} else {
|
|
if assert.Nil(t, tc.err) {
|
|
assert.Equals(t, tc.cert.Nonce, cert.Nonce)
|
|
assert.Equals(t, tc.jwk.KeyID, jwt.Headers[0].KeyID)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|