lego/certificate/renewal_test.go

313 lines
8.9 KiB
Go

package certificate
import (
"crypto/rand"
"crypto/rsa"
"encoding/json"
"io"
"net/http"
"testing"
"time"
"github.com/go-acme/lego/v4/acme"
"github.com/go-acme/lego/v4/acme/api"
"github.com/go-acme/lego/v4/certcrypto"
"github.com/go-acme/lego/v4/platform/tester"
"github.com/go-jose/go-jose/v3"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const (
ariLeafPEM = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
ariLeafCertID = "OM8w0VGlx1SqpUk1pFCxlOMxmaU.PqNFaGVEHxw"
)
func Test_makeCertID(t *testing.T) {
leaf, err := certcrypto.ParsePEMCertificate([]byte(ariLeafPEM))
require.NoError(t, err)
actual, err := makeARICertID(leaf)
require.NoError(t, err)
assert.Equal(t, ariLeafCertID, actual)
}
func TestCertifier_GetRenewalInfo(t *testing.T) {
leaf, err := certcrypto.ParsePEMCertificate([]byte(ariLeafPEM))
require.NoError(t, err)
// Test with a fake API.
mux, apiURL := tester.SetupFakeAPI(t)
mux.HandleFunc("/renewalInfo/"+ariLeafCertID, func(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
return
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(http.StatusOK)
_, wErr := w.Write([]byte(`{
"suggestedWindow": {
"start": "2020-03-17T17:51:09Z",
"end": "2020-03-17T18:21:09Z"
},
"explanationUrl": "https://aricapable.ca/docs/renewal-advice/"
}
}`))
require.NoError(t, wErr)
})
key, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err, "Could not generate test key")
core, err := api.New(http.DefaultClient, "lego-test", apiURL+"/dir", "", key)
require.NoError(t, err)
certifier := NewCertifier(core, &resolverMock{}, CertifierOptions{KeyType: certcrypto.RSA2048})
ri, err := certifier.GetRenewalInfo(RenewalInfoRequest{leaf})
require.NoError(t, err)
require.NotNil(t, ri)
assert.Equal(t, "2020-03-17T17:51:09Z", ri.SuggestedWindow.Start.Format(time.RFC3339))
assert.Equal(t, "2020-03-17T18:21:09Z", ri.SuggestedWindow.End.Format(time.RFC3339))
assert.Equal(t, "https://aricapable.ca/docs/renewal-advice/", ri.ExplanationURL)
}
func TestCertifier_GetRenewalInfo_errors(t *testing.T) {
leaf, err := certcrypto.ParsePEMCertificate([]byte(ariLeafPEM))
require.NoError(t, err)
key, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err, "Could not generate test key")
testCases := []struct {
desc string
httpClient *http.Client
request RenewalInfoRequest
handler http.HandlerFunc
}{
{
desc: "API timeout",
httpClient: &http.Client{Timeout: 500 * time.Millisecond}, // HTTP client that times out after 500ms.
request: RenewalInfoRequest{leaf},
handler: func(w http.ResponseWriter, r *http.Request) {
// API that takes 2ms to respond.
time.Sleep(2 * time.Millisecond)
},
},
{
desc: "API error",
httpClient: http.DefaultClient,
request: RenewalInfoRequest{leaf},
handler: func(w http.ResponseWriter, r *http.Request) {
// API that responds with error instead of renewal info.
http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
mux, apiURL := tester.SetupFakeAPI(t)
mux.HandleFunc("/renewalInfo/"+ariLeafCertID, test.handler)
core, err := api.New(test.httpClient, "lego-test", apiURL+"/dir", "", key)
require.NoError(t, err)
certifier := NewCertifier(core, &resolverMock{}, CertifierOptions{KeyType: certcrypto.RSA2048})
response, err := certifier.GetRenewalInfo(test.request)
require.Error(t, err)
assert.Nil(t, response)
})
}
}
func TestCertifier_UpdateRenewalInfo(t *testing.T) {
leaf, err := certcrypto.ParsePEMCertificate([]byte(ariLeafPEM))
require.NoError(t, err)
key, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err, "Could not generate test key")
// Test with a fake API.
mux, apiURL := tester.SetupFakeAPI(t)
mux.HandleFunc("/renewalInfo", func(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
return
}
body, rsbErr := readSignedBody(r, key)
if rsbErr != nil {
http.Error(w, rsbErr.Error(), http.StatusBadRequest)
return
}
var req acme.RenewalInfoUpdateRequest
err = json.Unmarshal(body, &req)
assert.NoError(t, err)
assert.True(t, req.Replaced)
assert.Equal(t, ariLeafCertID, req.CertID)
w.WriteHeader(http.StatusOK)
})
core, err := api.New(http.DefaultClient, "lego-test", apiURL+"/dir", "", key)
require.NoError(t, err)
certifier := NewCertifier(core, &resolverMock{}, CertifierOptions{KeyType: certcrypto.RSA2048})
err = certifier.UpdateRenewalInfo(RenewalInfoRequest{leaf})
require.NoError(t, err)
}
func TestCertifier_UpdateRenewalInfo_errors(t *testing.T) {
leaf, err := certcrypto.ParsePEMCertificate([]byte(ariLeafPEM))
require.NoError(t, err)
key, err := rsa.GenerateKey(rand.Reader, 2048)
require.NoError(t, err, "Could not generate test key")
testCases := []struct {
desc string
request RenewalInfoRequest
}{
{
desc: "API error",
request: RenewalInfoRequest{leaf},
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
mux, apiURL := tester.SetupFakeAPI(t)
// Always returns an error.
mux.HandleFunc("/renewalInfo", func(w http.ResponseWriter, r *http.Request) {
http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
})
core, err := api.New(http.DefaultClient, "lego-test", apiURL+"/dir", "", key)
require.NoError(t, err)
certifier := NewCertifier(core, &resolverMock{}, CertifierOptions{KeyType: certcrypto.RSA2048})
err = certifier.UpdateRenewalInfo(test.request)
require.Error(t, err)
})
}
}
func TestRenewalInfoResponse_ShouldRenew(t *testing.T) {
now := time.Now().UTC()
t.Run("Window is in the past", func(t *testing.T) {
ri := RenewalInfoResponse{
acme.RenewalInfoResponse{
SuggestedWindow: acme.Window{
Start: now.Add(-2 * time.Hour),
End: now.Add(-1 * time.Hour),
},
ExplanationURL: "",
},
}
rt := ri.ShouldRenewAt(now, 0)
require.NotNil(t, rt)
assert.Equal(t, now, *rt)
})
t.Run("Window is in the future", func(t *testing.T) {
ri := RenewalInfoResponse{
acme.RenewalInfoResponse{
SuggestedWindow: acme.Window{
Start: now.Add(1 * time.Hour),
End: now.Add(2 * time.Hour),
},
ExplanationURL: "",
},
}
rt := ri.ShouldRenewAt(now, 0)
assert.Nil(t, rt)
})
t.Run("Window is in the future, but caller is willing to sleep", func(t *testing.T) {
ri := RenewalInfoResponse{
acme.RenewalInfoResponse{
SuggestedWindow: acme.Window{
Start: now.Add(1 * time.Hour),
End: now.Add(2 * time.Hour),
},
ExplanationURL: "",
},
}
rt := ri.ShouldRenewAt(now, 2*time.Hour)
require.NotNil(t, rt)
assert.True(t, rt.Before(now.Add(2*time.Hour)))
})
t.Run("Window is in the future, but caller isn't willing to sleep long enough", func(t *testing.T) {
ri := RenewalInfoResponse{
acme.RenewalInfoResponse{
SuggestedWindow: acme.Window{
Start: now.Add(1 * time.Hour),
End: now.Add(2 * time.Hour),
},
ExplanationURL: "",
},
}
rt := ri.ShouldRenewAt(now, 59*time.Minute)
assert.Nil(t, rt)
})
}
func readSignedBody(r *http.Request, privateKey *rsa.PrivateKey) ([]byte, error) {
reqBody, err := io.ReadAll(r.Body)
if err != nil {
return nil, err
}
jws, err := jose.ParseSigned(string(reqBody))
if err != nil {
return nil, err
}
body, err := jws.Verify(&jose.JSONWebKey{
Key: privateKey.Public(),
Algorithm: "RSA",
})
if err != nil {
return nil, err
}
return body, nil
}