certificates/authority/policy_test.go

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package authority
import (
"context"
"errors"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/assert"
"go.step.sm/linkedca"
authPolicy "github.com/smallstep/certificates/authority/policy"
)
func TestAuthority_checkPolicy(t *testing.T) {
type test struct {
ctx context.Context
currentAdmin *linkedca.Admin
otherAdmins []*linkedca.Admin
policy *linkedca.Policy
err *PolicyError
}
tests := map[string]func(t *testing.T) test{
"fail/NewX509PolicyEngine-error": func(t *testing.T) test {
return test{
ctx: context.Background(),
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"**.local"},
},
},
},
err: &PolicyError{
Typ: ConfigurationFailure,
Err: errors.New("cannot parse permitted domain constraint \"**.local\": domain constraint \"**.local\" can only have wildcard as starting character"),
},
}
},
"fail/currentAdmin-evaluation-error": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "*"},
otherAdmins: []*linkedca.Admin{},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"*.local"},
},
},
},
err: &PolicyError{
Typ: EvaluationFailure,
Err: errors.New("cannot parse domain: dns \"*\" cannot be converted to ASCII"),
},
}
},
"fail/currentAdmin-lockout": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{
{
Subject: "otherAdmin",
},
},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"*.local"},
},
},
},
err: &PolicyError{
Typ: AdminLockOut,
Err: errors.New("the provided policy would lock out [step] from the CA. Please update your policy to include [step] as an allowed name"),
},
}
},
"fail/otherAdmins-evaluation-error": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{
{
Subject: "other",
},
{
Subject: "**",
},
},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"step", "other", "*.local"},
},
},
},
err: &PolicyError{
Typ: EvaluationFailure,
Err: errors.New("cannot parse domain: dns \"**\" cannot be converted to ASCII"),
},
}
},
"fail/otherAdmins-lockout": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{
{
Subject: "otherAdmin",
},
},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"step"},
},
},
},
err: &PolicyError{
Typ: AdminLockOut,
Err: errors.New("the provided policy would lock out [otherAdmin] from the CA. Please update your policy to include [otherAdmin] as an allowed name"),
},
}
},
"ok/no-policy": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{},
policy: nil,
}
},
"ok/empty-policy": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{},
},
},
},
}
},
"ok/policy": func(t *testing.T) test {
return test{
ctx: context.Background(),
currentAdmin: &linkedca.Admin{Subject: "step"},
otherAdmins: []*linkedca.Admin{
{
Subject: "otherAdmin",
},
},
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"step", "otherAdmin"},
},
},
},
}
},
}
for name, prep := range tests {
tc := prep(t)
t.Run(name, func(t *testing.T) {
a := &Authority{}
err := a.checkPolicy(tc.ctx, tc.currentAdmin, tc.otherAdmins, tc.policy)
if tc.err == nil {
assert.Nil(t, err)
} else {
assert.IsType(t, &PolicyError{}, err)
pe, ok := err.(*PolicyError)
assert.True(t, ok)
assert.Equal(t, tc.err.Typ, pe.Typ)
assert.Equal(t, tc.err.Error(), pe.Error())
}
})
}
}
func Test_policyToCertificates(t *testing.T) {
tests := []struct {
name string
policy *linkedca.Policy
want *authPolicy.Options
}{
{
name: "no-policy",
policy: nil,
want: nil,
},
{
name: "full-policy",
policy: &linkedca.Policy{
X509: &linkedca.X509Policy{
Allow: &linkedca.X509Names{
Dns: []string{"step"},
Ips: []string{"127.0.0.1/24"},
Emails: []string{"*.example.com"},
Uris: []string{"https://*.local"},
},
Deny: &linkedca.X509Names{
Dns: []string{"bad"},
Ips: []string{"127.0.0.30"},
Emails: []string{"badhost.example.com"},
Uris: []string{"https://badhost.local"},
},
},
Ssh: &linkedca.SSHPolicy{
Host: &linkedca.SSHHostPolicy{
Allow: &linkedca.SSHHostNames{
Dns: []string{"*.localhost"},
Ips: []string{"127.0.0.1/24"},
Principals: []string{"user"},
},
Deny: &linkedca.SSHHostNames{
Dns: []string{"badhost.localhost"},
Ips: []string{"127.0.0.40"},
Principals: []string{"root"},
},
},
User: &linkedca.SSHUserPolicy{
Allow: &linkedca.SSHUserNames{
Emails: []string{"@work"},
Principals: []string{"user"},
},
Deny: &linkedca.SSHUserNames{
Emails: []string{"root@work"},
Principals: []string{"root"},
},
},
},
},
want: &authPolicy.Options{
X509: &authPolicy.X509PolicyOptions{
AllowedNames: &authPolicy.X509NameOptions{
DNSDomains: []string{"step"},
IPRanges: []string{"127.0.0.1/24"},
EmailAddresses: []string{"*.example.com"},
URIDomains: []string{"https://*.local"},
},
DeniedNames: &authPolicy.X509NameOptions{
DNSDomains: []string{"bad"},
IPRanges: []string{"127.0.0.30"},
EmailAddresses: []string{"badhost.example.com"},
URIDomains: []string{"https://badhost.local"},
},
},
SSH: &authPolicy.SSHPolicyOptions{
Host: &authPolicy.SSHHostCertificateOptions{
AllowedNames: &authPolicy.SSHNameOptions{
DNSDomains: []string{"*.localhost"},
IPRanges: []string{"127.0.0.1/24"},
Principals: []string{"user"},
},
DeniedNames: &authPolicy.SSHNameOptions{
DNSDomains: []string{"badhost.localhost"},
IPRanges: []string{"127.0.0.40"},
Principals: []string{"root"},
},
},
User: &authPolicy.SSHUserCertificateOptions{
AllowedNames: &authPolicy.SSHNameOptions{
EmailAddresses: []string{"@work"},
Principals: []string{"user"},
},
DeniedNames: &authPolicy.SSHNameOptions{
EmailAddresses: []string{"root@work"},
Principals: []string{"root"},
},
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := policyToCertificates(tt.policy)
if !cmp.Equal(tt.want, got) {
t.Errorf("policyToCertificates() diff=\n%s", cmp.Diff(tt.want, got))
}
})
}
}