mirror of
https://github.com/smallstep/certificates.git
synced 2024-11-15 18:12:59 +00:00
625 lines
18 KiB
Go
625 lines
18 KiB
Go
package provisioner
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import (
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"context"
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"crypto/hmac"
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"crypto/sha256"
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"crypto/tls"
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"crypto/x509"
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"encoding/base64"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.step.sm/crypto/pemutil"
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"go.step.sm/crypto/x509util"
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"go.step.sm/linkedca"
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"github.com/smallstep/certificates/middleware/requestid"
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"github.com/smallstep/certificates/webhook"
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)
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func TestWebhookController_isCertTypeOK(t *testing.T) {
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type test struct {
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wc *WebhookController
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wh *Webhook
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want bool
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}
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tests := map[string]test{
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"all/all": {
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wc: &WebhookController{certType: linkedca.Webhook_ALL},
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wh: &Webhook{CertType: linkedca.Webhook_ALL.String()},
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want: true,
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},
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"all/x509": {
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wc: &WebhookController{certType: linkedca.Webhook_ALL},
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wh: &Webhook{CertType: linkedca.Webhook_X509.String()},
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want: true,
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},
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"all/ssh": {
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wc: &WebhookController{certType: linkedca.Webhook_ALL},
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wh: &Webhook{CertType: linkedca.Webhook_SSH.String()},
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want: true,
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},
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`all/""`: {
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wc: &WebhookController{certType: linkedca.Webhook_ALL},
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wh: &Webhook{},
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want: true,
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},
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"x509/all": {
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wc: &WebhookController{certType: linkedca.Webhook_X509},
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wh: &Webhook{CertType: linkedca.Webhook_ALL.String()},
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want: true,
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},
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"x509/x509": {
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wc: &WebhookController{certType: linkedca.Webhook_X509},
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wh: &Webhook{CertType: linkedca.Webhook_X509.String()},
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want: true,
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},
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"x509/ssh": {
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wc: &WebhookController{certType: linkedca.Webhook_X509},
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wh: &Webhook{CertType: linkedca.Webhook_SSH.String()},
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want: false,
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},
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`x509/""`: {
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wc: &WebhookController{certType: linkedca.Webhook_X509},
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wh: &Webhook{},
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want: true,
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},
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"ssh/all": {
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wc: &WebhookController{certType: linkedca.Webhook_SSH},
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wh: &Webhook{CertType: linkedca.Webhook_ALL.String()},
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want: true,
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},
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"ssh/x509": {
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wc: &WebhookController{certType: linkedca.Webhook_SSH},
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wh: &Webhook{CertType: linkedca.Webhook_X509.String()},
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want: false,
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},
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"ssh/ssh": {
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wc: &WebhookController{certType: linkedca.Webhook_SSH},
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wh: &Webhook{CertType: linkedca.Webhook_SSH.String()},
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want: true,
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},
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`ssh/""`: {
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wc: &WebhookController{certType: linkedca.Webhook_SSH},
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wh: &Webhook{},
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want: true,
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},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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assert.Equal(t, test.want, test.wc.isCertTypeOK(test.wh))
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})
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}
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}
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// withRequestID is a helper that calls into [requestid.NewContext] and returns
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// a new context with the requestID added.
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func withRequestID(t *testing.T, ctx context.Context, requestID string) context.Context {
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t.Helper()
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return requestid.NewContext(ctx, requestID)
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}
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func TestWebhookController_Enrich(t *testing.T) {
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cert, err := pemutil.ReadCertificate("testdata/certs/x5c-leaf.crt", pemutil.WithFirstBlock())
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require.NoError(t, err)
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type test struct {
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ctl *WebhookController
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ctx context.Context
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req *webhook.RequestBody
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responses []*webhook.ResponseBody
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expectErr bool
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expectTemplateData any
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assertRequest func(t *testing.T, req *webhook.RequestBody)
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}
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tests := map[string]test{
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"ok/no enriching webhooks": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING"}},
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TemplateData: nil,
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},
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req: &webhook.RequestBody{},
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responses: nil,
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expectErr: false,
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expectTemplateData: nil,
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},
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"ok/one webhook": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "ENRICHING"}},
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TemplateData: x509util.TemplateData{},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: true, Data: map[string]any{"role": "bar"}}},
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expectErr: false,
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expectTemplateData: x509util.TemplateData{"Webhooks": map[string]any{"people": map[string]any{"role": "bar"}}},
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},
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"ok/two webhooks": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{
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{Name: "people", Kind: "ENRICHING"},
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{Name: "devices", Kind: "ENRICHING"},
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},
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TemplateData: x509util.TemplateData{},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{
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{Allow: true, Data: map[string]any{"role": "bar"}},
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{Allow: true, Data: map[string]any{"serial": "123"}},
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},
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expectErr: false,
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expectTemplateData: x509util.TemplateData{
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"Webhooks": map[string]any{
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"devices": map[string]any{"serial": "123"},
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"people": map[string]any{"role": "bar"},
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},
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},
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},
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"ok/x509 only": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{
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{Name: "people", Kind: "ENRICHING", CertType: linkedca.Webhook_SSH.String()},
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{Name: "devices", Kind: "ENRICHING"},
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},
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TemplateData: x509util.TemplateData{},
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certType: linkedca.Webhook_X509,
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{
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{Allow: true, Data: map[string]any{"role": "bar"}},
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{Allow: true, Data: map[string]any{"serial": "123"}},
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},
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expectErr: false,
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expectTemplateData: x509util.TemplateData{
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"Webhooks": map[string]any{
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"devices": map[string]any{"serial": "123"},
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},
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},
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},
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"ok/with options": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "ENRICHING"}},
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TemplateData: x509util.TemplateData{},
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options: []webhook.RequestBodyOption{webhook.WithX5CCertificate(cert)},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: true, Data: map[string]any{"role": "bar"}}},
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expectErr: false,
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expectTemplateData: x509util.TemplateData{"Webhooks": map[string]any{"people": map[string]any{"role": "bar"}}},
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assertRequest: func(t *testing.T, req *webhook.RequestBody) {
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key, err := x509.MarshalPKIXPublicKey(cert.PublicKey)
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require.NoError(t, err)
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assert.Equal(t, &webhook.X5CCertificate{
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Raw: cert.Raw,
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PublicKey: key,
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PublicKeyAlgorithm: cert.PublicKeyAlgorithm.String(),
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NotBefore: cert.NotBefore,
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NotAfter: cert.NotAfter,
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}, req.X5CCertificate)
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},
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},
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"deny": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "ENRICHING"}},
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TemplateData: x509util.TemplateData{},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: false}},
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expectErr: true,
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expectTemplateData: x509util.TemplateData{},
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},
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"fail/with options": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "ENRICHING"}},
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TemplateData: x509util.TemplateData{},
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options: []webhook.RequestBodyOption{webhook.WithX5CCertificate(&x509.Certificate{
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PublicKey: []byte("bad"),
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})},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: false}},
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expectErr: true,
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expectTemplateData: x509util.TemplateData{},
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},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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for i, wh := range test.ctl.webhooks {
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var j = i
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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assert.Equal(t, "reqID", r.Header.Get("X-Request-ID"))
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err := json.NewEncoder(w).Encode(test.responses[j])
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require.NoError(t, err)
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}))
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// nolint: gocritic // defer in loop isn't a memory leak
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defer ts.Close()
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wh.URL = ts.URL
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}
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err := test.ctl.Enrich(test.ctx, test.req)
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if (err != nil) != test.expectErr {
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t.Fatalf("Got err %v, want %v", err, test.expectErr)
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}
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assert.Equal(t, test.expectTemplateData, test.ctl.TemplateData)
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if test.assertRequest != nil {
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test.assertRequest(t, test.req)
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}
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})
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}
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}
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func TestWebhookController_Authorize(t *testing.T) {
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cert, err := pemutil.ReadCertificate("testdata/certs/x5c-leaf.crt", pemutil.WithFirstBlock())
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require.NoError(t, err)
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type test struct {
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ctl *WebhookController
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ctx context.Context
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req *webhook.RequestBody
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responses []*webhook.ResponseBody
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expectErr bool
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assertRequest func(t *testing.T, req *webhook.RequestBody)
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}
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tests := map[string]test{
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"ok/no enriching webhooks": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "ENRICHING"}},
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},
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req: &webhook.RequestBody{},
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responses: nil,
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expectErr: false,
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},
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"ok": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING"}},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: true}},
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expectErr: false,
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},
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"ok/ssh only": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING", CertType: linkedca.Webhook_X509.String()}},
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certType: linkedca.Webhook_SSH,
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: false}},
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expectErr: false,
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},
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"ok/with options": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING"}},
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options: []webhook.RequestBodyOption{webhook.WithX5CCertificate(cert)},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: true}},
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expectErr: false,
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assertRequest: func(t *testing.T, req *webhook.RequestBody) {
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key, err := x509.MarshalPKIXPublicKey(cert.PublicKey)
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require.NoError(t, err)
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assert.Equal(t, &webhook.X5CCertificate{
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Raw: cert.Raw,
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PublicKey: key,
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PublicKeyAlgorithm: cert.PublicKeyAlgorithm.String(),
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NotBefore: cert.NotBefore,
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NotAfter: cert.NotAfter,
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}, req.X5CCertificate)
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},
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},
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"deny": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING"}},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: false}},
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expectErr: true,
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},
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"fail/with options": {
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ctl: &WebhookController{
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client: http.DefaultClient,
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webhooks: []*Webhook{{Name: "people", Kind: "AUTHORIZING"}},
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options: []webhook.RequestBodyOption{webhook.WithX5CCertificate(&x509.Certificate{
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PublicKey: []byte("bad"),
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})},
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},
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ctx: withRequestID(t, context.Background(), "reqID"),
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req: &webhook.RequestBody{},
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responses: []*webhook.ResponseBody{{Allow: false}},
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expectErr: true,
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},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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for i, wh := range test.ctl.webhooks {
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var j = i
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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assert.Equal(t, "reqID", r.Header.Get("X-Request-ID"))
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err := json.NewEncoder(w).Encode(test.responses[j])
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require.NoError(t, err)
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}))
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// nolint: gocritic // defer in loop isn't a memory leak
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defer ts.Close()
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wh.URL = ts.URL
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}
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err := test.ctl.Authorize(test.ctx, test.req)
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if (err != nil) != test.expectErr {
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t.Fatalf("Got err %v, want %v", err, test.expectErr)
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}
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if test.assertRequest != nil {
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test.assertRequest(t, test.req)
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}
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})
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}
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}
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func TestWebhook_Do(t *testing.T) {
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csr := parseCertificateRequest(t, "testdata/certs/ecdsa.csr")
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type test struct {
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webhook Webhook
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dataArg any
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requestID string
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webhookResponse webhook.ResponseBody
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expectPath string
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errStatusCode int
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serverErrMsg string
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expectErr error
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// expectToken any
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}
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tests := map[string]test{
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"ok": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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},
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requestID: "reqID",
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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},
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"ok/no-request-id": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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},
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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},
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"ok/bearer": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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BearerToken: "mytoken",
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},
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requestID: "reqID",
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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},
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"ok/basic": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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BasicAuth: struct {
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Username string
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Password string
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}{
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Username: "myuser",
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Password: "mypass",
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},
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},
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requestID: "reqID",
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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},
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"ok/templated-url": {
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webhook: Webhook{
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ID: "abc123",
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// scheme, host, port will come from test server
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URL: "/users/{{ .username }}?region={{ .region }}",
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Secret: "c2VjcmV0Cg==",
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},
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requestID: "reqID",
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dataArg: map[string]interface{}{"username": "areed", "region": "central"},
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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expectPath: "/users/areed?region=central",
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},
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/*
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"ok/token from ssh template": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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},
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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dataArg: sshutil.TemplateData{sshutil.TokenKey: "token"},
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expectToken: "token",
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},
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"ok/token from x509 template": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
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},
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webhookResponse: webhook.ResponseBody{
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Data: map[string]interface{}{"role": "dba"},
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},
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dataArg: x509util.TemplateData{sshutil.TokenKey: "token"},
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expectToken: "token",
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},
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*/
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"ok/allow": {
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webhook: Webhook{
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ID: "abc123",
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Secret: "c2VjcmV0Cg==",
|
|
},
|
|
requestID: "reqID",
|
|
webhookResponse: webhook.ResponseBody{
|
|
Allow: true,
|
|
},
|
|
},
|
|
"fail/404": {
|
|
webhook: Webhook{
|
|
ID: "abc123",
|
|
Secret: "c2VjcmV0Cg==",
|
|
},
|
|
webhookResponse: webhook.ResponseBody{
|
|
Data: map[string]interface{}{"role": "dba"},
|
|
},
|
|
requestID: "reqID",
|
|
errStatusCode: 404,
|
|
serverErrMsg: "item not found",
|
|
expectErr: errors.New("Webhook server responded with 404"),
|
|
},
|
|
}
|
|
for name, tc := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
if tc.requestID != "" {
|
|
assert.Equal(t, tc.requestID, r.Header.Get("X-Request-ID"))
|
|
}
|
|
|
|
assert.Equal(t, tc.webhook.ID, r.Header.Get("X-Smallstep-Webhook-ID"))
|
|
|
|
sig, err := hex.DecodeString(r.Header.Get("X-Smallstep-Signature"))
|
|
assert.NoError(t, err)
|
|
|
|
body, err := io.ReadAll(r.Body)
|
|
assert.NoError(t, err)
|
|
|
|
secret, err := base64.StdEncoding.DecodeString(tc.webhook.Secret)
|
|
assert.NoError(t, err)
|
|
h := hmac.New(sha256.New, secret)
|
|
h.Write(body)
|
|
mac := h.Sum(nil)
|
|
assert.True(t, hmac.Equal(sig, mac))
|
|
|
|
switch {
|
|
case tc.webhook.BearerToken != "":
|
|
ah := fmt.Sprintf("Bearer %s", tc.webhook.BearerToken)
|
|
assert.Equal(t, ah, r.Header.Get("Authorization"))
|
|
case tc.webhook.BasicAuth.Username != "" || tc.webhook.BasicAuth.Password != "":
|
|
whReq, err := http.NewRequest("", "", http.NoBody)
|
|
require.NoError(t, err)
|
|
whReq.SetBasicAuth(tc.webhook.BasicAuth.Username, tc.webhook.BasicAuth.Password)
|
|
ah := whReq.Header.Get("Authorization")
|
|
assert.Equal(t, ah, whReq.Header.Get("Authorization"))
|
|
default:
|
|
assert.Equal(t, "", r.Header.Get("Authorization"))
|
|
}
|
|
|
|
if tc.expectPath != "" {
|
|
assert.Equal(t, tc.expectPath, r.URL.Path+"?"+r.URL.RawQuery)
|
|
}
|
|
|
|
if tc.errStatusCode != 0 {
|
|
http.Error(w, tc.serverErrMsg, tc.errStatusCode)
|
|
return
|
|
}
|
|
|
|
reqBody := new(webhook.RequestBody)
|
|
err = json.Unmarshal(body, reqBody)
|
|
require.NoError(t, err)
|
|
|
|
err = json.NewEncoder(w).Encode(tc.webhookResponse)
|
|
require.NoError(t, err)
|
|
}))
|
|
defer ts.Close()
|
|
|
|
tc.webhook.URL = ts.URL + tc.webhook.URL
|
|
|
|
reqBody, err := webhook.NewRequestBody(webhook.WithX509CertificateRequest(csr))
|
|
require.NoError(t, err)
|
|
|
|
ctx := context.Background()
|
|
if tc.requestID != "" {
|
|
ctx = withRequestID(t, ctx, tc.requestID)
|
|
}
|
|
ctx, cancel := context.WithTimeout(ctx, time.Second*10)
|
|
defer cancel()
|
|
|
|
got, err := tc.webhook.DoWithContext(ctx, http.DefaultClient, reqBody, tc.dataArg)
|
|
if tc.expectErr != nil {
|
|
assert.Equal(t, tc.expectErr.Error(), err.Error())
|
|
return
|
|
}
|
|
assert.NoError(t, err)
|
|
|
|
assert.Equal(t, &tc.webhookResponse, got)
|
|
})
|
|
}
|
|
|
|
t.Run("disableTLSClientAuth", func(t *testing.T) {
|
|
ts := httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
w.Write([]byte("{}"))
|
|
}))
|
|
ts.TLS.ClientAuth = tls.RequireAnyClientCert
|
|
wh := Webhook{
|
|
URL: ts.URL,
|
|
}
|
|
cert, err := tls.LoadX509KeyPair("testdata/certs/foo.crt", "testdata/secrets/foo.key")
|
|
require.NoError(t, err)
|
|
transport := http.DefaultTransport.(*http.Transport).Clone()
|
|
transport.TLSClientConfig = &tls.Config{
|
|
InsecureSkipVerify: true,
|
|
Certificates: []tls.Certificate{cert},
|
|
}
|
|
client := &http.Client{
|
|
Transport: transport,
|
|
}
|
|
reqBody, err := webhook.NewRequestBody(webhook.WithX509CertificateRequest(csr))
|
|
require.NoError(t, err)
|
|
|
|
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
|
|
defer cancel()
|
|
|
|
_, err = wh.DoWithContext(ctx, client, reqBody, nil)
|
|
require.NoError(t, err)
|
|
|
|
ctx, cancel = context.WithTimeout(context.Background(), time.Second*10)
|
|
defer cancel()
|
|
|
|
wh.DisableTLSClientAuth = true
|
|
_, err = wh.DoWithContext(ctx, client, reqBody, nil)
|
|
require.Error(t, err)
|
|
})
|
|
}
|