mirror of
https://github.com/pomerium/pomerium.git
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ffca3b36a9
Add a parameter to evaluator.New() for the previous Evaluator (if any). If the evaluatorConfig is the same, reuse any PolicyEvaluators for policies that have not changed from the previous Evaluator. Use the route IDs along with the policy checksums to determine whether a given policy has changed. Similarly, add a new cacheKey() method to the evaluatorConfig to compute a checksum used for determine whether the evaluatorConfig has changed. (Store this checksum on the Evaluator.)
687 lines
19 KiB
Go
687 lines
19 KiB
Go
package evaluator
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import (
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"context"
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"encoding/base64"
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"net/http"
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"net/url"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"google.golang.org/protobuf/proto"
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"github.com/pomerium/pomerium/authorize/internal/store"
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"github.com/pomerium/pomerium/config"
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"github.com/pomerium/pomerium/internal/httputil"
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"github.com/pomerium/pomerium/pkg/cryptutil"
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"github.com/pomerium/pomerium/pkg/grpc/session"
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"github.com/pomerium/pomerium/pkg/grpc/user"
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"github.com/pomerium/pomerium/pkg/policy/criteria"
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"github.com/pomerium/pomerium/pkg/policy/parser"
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"github.com/pomerium/pomerium/pkg/storage"
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)
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func TestEvaluator(t *testing.T) {
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signingKey, err := cryptutil.NewSigningKey()
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require.NoError(t, err)
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encodedSigningKey, err := cryptutil.EncodePrivateKey(signingKey)
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require.NoError(t, err)
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privateJWK, err := cryptutil.PrivateJWKFromBytes(encodedSigningKey)
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require.NoError(t, err)
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eval := func(t *testing.T, options []Option, data []proto.Message, req *Request) (*Result, error) {
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ctx := context.Background()
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ctx = storage.WithQuerier(ctx, storage.NewStaticQuerier(data...))
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store := store.New()
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store.UpdateJWTClaimHeaders(config.NewJWTClaimHeaders("email", "groups", "user", "CUSTOM_KEY"))
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store.UpdateSigningKey(privateJWK)
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e, err := New(ctx, store, nil, options...)
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require.NoError(t, err)
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return e.Evaluate(ctx, req)
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}
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policies := []config.Policy{
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to1.example.com")}},
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AllowPublicUnauthenticatedAccess: true,
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to2.example.com")}},
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AllowPublicUnauthenticatedAccess: true,
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KubernetesServiceAccountToken: "KUBERNETES",
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to3.example.com")}},
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AllowPublicUnauthenticatedAccess: true,
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EnableGoogleCloudServerlessAuthentication: true,
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to4.example.com")}},
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AllowedUsers: []string{"a@example.com"},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to5.example.com")}},
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SubPolicies: []config.SubPolicy{
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{
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AllowedUsers: []string{"a@example.com"},
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},
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},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to6.example.com")}},
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AllowedUsers: []string{"example/1234"},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to7.example.com")}},
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AllowedDomains: []string{"example.com"},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to8.example.com")}},
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AllowAnyAuthenticatedUser: true,
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to9.example.com")}},
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Policy: &config.PPLPolicy{
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Policy: &parser.Policy{
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Rules: []parser.Rule{{
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Action: parser.ActionAllow,
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Or: []parser.Criterion{{
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Name: "http_method", Data: parser.Object{
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"is": parser.String(http.MethodGet),
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},
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}},
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}},
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},
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},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to10.example.com")}},
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Policy: &config.PPLPolicy{
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Policy: &parser.Policy{
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Rules: []parser.Rule{{
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Action: parser.ActionAllow,
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Or: []parser.Criterion{{
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Name: "http_path", Data: parser.Object{
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"is": parser.String("/test"),
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},
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}},
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}},
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},
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},
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to11.example.com")}},
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AllowedUsers: []string{"a@example.com"},
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TLSDownstreamClientCA: base64.StdEncoding.EncodeToString([]byte(testCA)),
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},
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{
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To: config.WeightedURLs{{URL: *mustParseURL("https://to12.example.com")}},
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AllowedUsers: []string{"a@example.com"},
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Policy: &config.PPLPolicy{
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Policy: &parser.Policy{
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Rules: []parser.Rule{{
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Action: parser.ActionDeny,
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Or: []parser.Criterion{{Name: "invalid_client_certificate"}},
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}},
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},
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},
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},
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}
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options := []Option{
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WithAuthenticateURL("https://authn.example.com"),
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WithPolicies(policies),
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}
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validCertInfo := ClientCertificateInfo{
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Presented: true,
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Leaf: testValidCert,
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}
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t.Run("client certificate (default CA)", func(t *testing.T) {
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// Clone the existing options and add a default client CA.
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options := append([]Option(nil), options...)
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options = append(options, WithClientCA([]byte(testCA)),
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WithAddDefaultClientCertificateRule(true))
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t.Run("missing", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[0],
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})
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require.NoError(t, err)
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assert.Equal(t, NewRuleResult(true, criteria.ReasonClientCertificateRequired), res.Deny)
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})
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t.Run("invalid", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[0],
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HTTP: RequestHTTP{
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ClientCertificate: ClientCertificateInfo{Presented: true},
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},
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})
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require.NoError(t, err)
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assert.Equal(t, NewRuleResult(true, criteria.ReasonInvalidClientCertificate), res.Deny)
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})
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t.Run("valid", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[0],
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HTTP: RequestHTTP{
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ClientCertificate: validCertInfo,
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},
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})
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require.NoError(t, err)
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assert.False(t, res.Deny.Value)
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})
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})
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t.Run("client certificate (per-policy CA)", func(t *testing.T) {
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// Clone existing options and add the default client certificate rule.
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options := append([]Option(nil), options...)
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options = append(options, WithAddDefaultClientCertificateRule(true))
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t.Run("missing", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[10],
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})
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require.NoError(t, err)
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assert.Equal(t, NewRuleResult(true, criteria.ReasonClientCertificateRequired), res.Deny)
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})
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t.Run("invalid", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[10],
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HTTP: RequestHTTP{
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ClientCertificate: ClientCertificateInfo{
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Presented: true,
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Leaf: testUntrustedCert,
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},
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},
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})
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require.NoError(t, err)
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assert.Equal(t, NewRuleResult(true, criteria.ReasonInvalidClientCertificate), res.Deny)
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})
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t.Run("valid", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[10],
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HTTP: RequestHTTP{
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ClientCertificate: validCertInfo,
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},
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})
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require.NoError(t, err)
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assert.False(t, res.Deny.Value)
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})
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})
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t.Run("explicit client certificate rule", func(t *testing.T) {
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// Clone the existing options and add a default client CA (but no
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// default deny rule).
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options := append([]Option(nil), options...)
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options = append(options, WithClientCA([]byte(testCA)))
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t.Run("invalid but allowed", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[0], // no explicit deny rule
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HTTP: RequestHTTP{
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ClientCertificate: ClientCertificateInfo{
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Presented: true,
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Leaf: testUntrustedCert,
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},
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},
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})
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require.NoError(t, err)
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assert.False(t, res.Deny.Value)
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})
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t.Run("invalid", func(t *testing.T) {
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res, err := eval(t, options, nil, &Request{
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Policy: &policies[11], // policy has explicit deny rule
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HTTP: RequestHTTP{
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ClientCertificate: ClientCertificateInfo{
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Presented: true,
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Leaf: testUntrustedCert,
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},
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},
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})
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require.NoError(t, err)
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assert.Equal(t, NewRuleResult(true, criteria.ReasonInvalidClientCertificate), res.Deny)
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})
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})
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t.Run("identity_headers", func(t *testing.T) {
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t.Run("kubernetes", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[1],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.Equal(t, "a@example.com", res.Headers.Get("Impersonate-User"))
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})
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t.Run("google_cloud_serverless", func(t *testing.T) {
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withMockGCP(t, func() {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[2],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.NotEmpty(t, res.Headers.Get("Authorization"))
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})
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})
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})
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t.Run("email", func(t *testing.T) {
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t.Run("allowed", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[3],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("allowed sub", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[4],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("denied", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "b@example.com",
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},
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}, &Request{
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Policy: &policies[3],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.False(t, res.Allow.Value)
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})
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})
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t.Run("impersonate email", func(t *testing.T) {
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t.Run("allowed", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&session.Session{
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Id: "session2",
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UserId: "user2",
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ImpersonateSessionId: proto.String("session1"),
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[3],
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Session: RequestSession{
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ID: "session2",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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})
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t.Run("user_id", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "example/1234",
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},
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&user.User{
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Id: "example/1234",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[5],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("domain", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[6],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("impersonate domain", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&session.Session{
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Id: "session2",
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UserId: "user2",
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ImpersonateSessionId: proto.String("session1"),
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},
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&user.User{
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Id: "user1",
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Email: "a@example.com",
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},
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}, &Request{
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Policy: &policies[6],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("any authenticated user", func(t *testing.T) {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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},
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}, &Request{
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Policy: &policies[7],
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Session: RequestSession{
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ID: "session1",
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},
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HTTP: RequestHTTP{
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Method: http.MethodGet,
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URL: "https://from.example.com",
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},
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})
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require.NoError(t, err)
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assert.True(t, res.Allow.Value)
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})
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t.Run("carry over assertion header", func(t *testing.T) {
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tcs := []struct {
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src map[string]string
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jwtAssertionFor string
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}{
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{map[string]string{}, ""},
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{map[string]string{
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httputil.CanonicalHeaderKey(httputil.HeaderPomeriumJWTAssertion): "identity-a",
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}, "identity-a"},
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{map[string]string{
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httputil.CanonicalHeaderKey(httputil.HeaderPomeriumJWTAssertionFor): "identity-a",
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httputil.CanonicalHeaderKey(httputil.HeaderPomeriumJWTAssertion): "identity-b",
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}, "identity-a"},
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}
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for _, tc := range tcs {
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res, err := eval(t, options, []proto.Message{
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&session.Session{
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Id: "session1",
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UserId: "user1",
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},
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&user.User{
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Id: "user1",
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},
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}, &Request{
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Policy: &policies[8],
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Session: RequestSession{
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ID: "session1",
|
|
},
|
|
HTTP: RequestHTTP{
|
|
Method: http.MethodGet,
|
|
URL: "https://from.example.com",
|
|
Headers: tc.src,
|
|
},
|
|
})
|
|
if assert.NoError(t, err) {
|
|
assert.Equal(t, tc.jwtAssertionFor, res.Headers.Get(httputil.HeaderPomeriumJWTAssertionFor))
|
|
}
|
|
}
|
|
})
|
|
t.Run("http method", func(t *testing.T) {
|
|
res, err := eval(t, options, []proto.Message{}, &Request{
|
|
Policy: &policies[8],
|
|
HTTP: NewRequestHTTP(
|
|
http.MethodGet,
|
|
*mustParseURL("https://from.example.com/"),
|
|
nil,
|
|
ClientCertificateInfo{},
|
|
"",
|
|
),
|
|
})
|
|
require.NoError(t, err)
|
|
assert.True(t, res.Allow.Value)
|
|
})
|
|
t.Run("http path", func(t *testing.T) {
|
|
res, err := eval(t, options, []proto.Message{}, &Request{
|
|
Policy: &policies[9],
|
|
HTTP: NewRequestHTTP(
|
|
"POST",
|
|
*mustParseURL("https://from.example.com/test"),
|
|
nil,
|
|
ClientCertificateInfo{},
|
|
"",
|
|
),
|
|
})
|
|
require.NoError(t, err)
|
|
assert.True(t, res.Allow.Value)
|
|
})
|
|
}
|
|
|
|
func TestPolicyEvaluatorReuse(t *testing.T) {
|
|
ctx := context.Background()
|
|
|
|
store := store.New()
|
|
|
|
policies := []config.Policy{
|
|
{To: singleToURL("https://to1.example.com")},
|
|
{To: singleToURL("https://to2.example.com")},
|
|
{To: singleToURL("https://to3.example.com")},
|
|
{To: singleToURL("https://to4.example.com")},
|
|
}
|
|
|
|
options := []Option{
|
|
WithPolicies(policies),
|
|
}
|
|
|
|
initial, err := New(ctx, store, nil, options...)
|
|
require.NoError(t, err)
|
|
|
|
assertPolicyEvaluatorReused := func(t *testing.T, e *Evaluator, p *config.Policy) {
|
|
t.Helper()
|
|
routeID, err := p.RouteID()
|
|
require.NoError(t, err)
|
|
p1 := initial.policyEvaluators[routeID]
|
|
require.NotNil(t, p1)
|
|
p2 := e.policyEvaluators[routeID]
|
|
assert.Same(t, p1, p2, routeID)
|
|
}
|
|
|
|
assertPolicyEvaluatorUpdated := func(t *testing.T, e *Evaluator, p *config.Policy) {
|
|
t.Helper()
|
|
routeID, err := p.RouteID()
|
|
require.NoError(t, err)
|
|
p1 := initial.policyEvaluators[routeID]
|
|
require.NotNil(t, p1)
|
|
p2 := e.policyEvaluators[routeID]
|
|
require.NotNil(t, p2)
|
|
assert.NotSame(t, p1, p2, routeID)
|
|
}
|
|
|
|
// If the evaluatorConfig is identical, all of the policy evaluators should
|
|
// be reused.
|
|
t.Run("identical", func(t *testing.T) {
|
|
e, err := New(ctx, store, initial, options...)
|
|
require.NoError(t, err)
|
|
for i := range policies {
|
|
assertPolicyEvaluatorReused(t, e, &policies[i])
|
|
}
|
|
})
|
|
|
|
assertNoneReused := func(t *testing.T, o Option) {
|
|
e, err := New(ctx, store, initial, append(options, o)...)
|
|
require.NoError(t, err)
|
|
for i := range policies {
|
|
assertPolicyEvaluatorUpdated(t, e, &policies[i])
|
|
}
|
|
}
|
|
|
|
// If any of the evaluatorConfig fields besides the Policies change, no
|
|
// policy evaluators should be reused.
|
|
t.Run("ClientCA changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithClientCA([]byte("dummy-ca")))
|
|
})
|
|
t.Run("ClientCRL changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithClientCRL([]byte("dummy-crl")))
|
|
})
|
|
t.Run("AddDefaultClientCertificateRule changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithAddDefaultClientCertificateRule(true))
|
|
})
|
|
t.Run("ClientCertConstraints changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithClientCertConstraints(&ClientCertConstraints{MaxVerifyDepth: 3}))
|
|
})
|
|
t.Run("SigningKey changed", func(t *testing.T) {
|
|
signingKey, err := cryptutil.NewSigningKey()
|
|
require.NoError(t, err)
|
|
encodedSigningKey, err := cryptutil.EncodePrivateKey(signingKey)
|
|
require.NoError(t, err)
|
|
assertNoneReused(t, WithSigningKey(encodedSigningKey))
|
|
})
|
|
t.Run("AuthenticateURL changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithAuthenticateURL("authenticate.example.com"))
|
|
})
|
|
t.Run("GoogleCloudServerlessAuthenticationServiceAccount changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithGoogleCloudServerlessAuthenticationServiceAccount("dummy-account"))
|
|
})
|
|
t.Run("JWTClaimsHeaders changed", func(t *testing.T) {
|
|
assertNoneReused(t, WithJWTClaimsHeaders(config.JWTClaimHeaders{"dummy": "header"}))
|
|
})
|
|
|
|
// If some policies have changed, but the evaluatorConfig is otherwise
|
|
// identical, only evaluators for the changed policies should be updated.
|
|
t.Run("policies changed", func(t *testing.T) {
|
|
// Make changes to some of the policies.
|
|
newPolicies := []config.Policy{
|
|
{To: singleToURL("https://to1.example.com")},
|
|
{To: singleToURL("https://to2.example.com"),
|
|
AllowedUsers: []string{"user-id-1"}}, // change just the policy itself
|
|
{To: singleToURL("https://to3.example.com")},
|
|
{To: singleToURL("https://foo.example.com"), // change route ID too
|
|
AllowAnyAuthenticatedUser: true},
|
|
}
|
|
|
|
e, err := New(ctx, store, initial, WithPolicies(newPolicies))
|
|
require.NoError(t, err)
|
|
|
|
// Only the first and the third policy evaluators should be reused.
|
|
assertPolicyEvaluatorReused(t, e, &newPolicies[0])
|
|
assertPolicyEvaluatorUpdated(t, e, &newPolicies[1])
|
|
assertPolicyEvaluatorReused(t, e, &newPolicies[2])
|
|
|
|
// The last policy shouldn't correspond with any of the initial policy
|
|
// evaluators.
|
|
rid, err := newPolicies[3].RouteID()
|
|
require.NoError(t, err)
|
|
_, exists := initial.policyEvaluators[rid]
|
|
assert.False(t, exists, "initial evaluator should not have a policy for route ID", rid)
|
|
assert.NotNil(t, e.policyEvaluators[rid])
|
|
})
|
|
}
|
|
|
|
func singleToURL(url string) config.WeightedURLs {
|
|
return config.WeightedURLs{{URL: *mustParseURL(url)}}
|
|
}
|
|
|
|
func mustParseURL(str string) *url.URL {
|
|
u, err := url.Parse(str)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return u
|
|
}
|