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// Copyright (C) MongoDB, Inc. 2017-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
package ocsp
import (
"context"
"crypto"
"crypto/tls"
"errors"
"testing"
"time"
"go.mongodb.org/mongo-driver/internal/assert"
"golang.org/x/crypto/ocsp"
)
var (
ctx = context.Background()
)
func TestCache(t *testing.T) {
testRequest := &ocsp.Request{
HashAlgorithm: crypto.SHA1,
IssuerNameHash: []byte("issuerNameHash"),
IssuerKeyHash: []byte("issuerKeyHash"),
}
testRequestKey := createCacheKey(testRequest)
t.Run("verification errors if cache is nil", func(t *testing.T) {
err := Verify(ctx, tls.ConnectionState{}, &VerifyOptions{})
assert.NotNil(t, err, "expected error, got nil")
var ocspErr *Error
assert.True(t, errors.As(err, &ocspErr), "expected error of type %T, got %v of type %T", &Error{}, err, err)
expected := &Error{
wrapped: errors.New("no OCSP cache provided"),
}
assert.Equal(t, expected.Error(), ocspErr.Error(), "expected error %v, got %v", expected, ocspErr)
})
t.Run("put", func(t *testing.T) {
t.Run("empty cache", func(t *testing.T) {
good := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(10),
}
revoked := &ResponseDetails{
Status: ocsp.Revoked,
NextUpdate: futureTime(10),
}
unknown := &ResponseDetails{
Status: ocsp.Unknown,
NextUpdate: futureTime(10),
}
goodNoUpdate := &ResponseDetails{Status: ocsp.Good}
revokedNoUpdate := &ResponseDetails{Status: ocsp.Revoked}
unknownNoUpdate := &ResponseDetails{Status: ocsp.Unknown}
testCases := []struct {
name string
response *ResponseDetails
cached bool
}{
{"good response is cached", good, true},
{"revoked response is cached", revoked, true},
{"good response without nextUpdate is not cached", goodNoUpdate, false},
{"revoked response without nextUpdate is not cached", revokedNoUpdate, false},
{"unknown response with nextUpdate is not cached", unknown, false},
{"unknown response without nextUpdate is not cached", unknownNoUpdate, false},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
cache := NewCache()
putRes := cache.Update(testRequest, tc.response)
// Put should always return tc.response even if it wasn't added to the cache because it is the most
// up-to-date response.
assert.Equal(t, tc.response, putRes, "expected Put to return %v, got %v", tc.response, putRes)
current, ok := cache.cache[testRequestKey]
if tc.cached {
assert.True(t, ok, "expected cache to contain entry but did not")
assert.Equal(t, tc.response, current, "expected cache to contain %v, got %v", tc.response, current)
return
}
assert.False(t, ok, "expected cache to contain nil, got %v", current)
assert.Nil(t, current, "expected cache to contain no entry, got %v", current)
})
}
})
t.Run("non-empty cache", func(t *testing.T) {
cachedUpdateMinutes := 10
originalCached := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(cachedUpdateMinutes),
}
unknownUpdate := &ResponseDetails{
Status: ocsp.Unknown,
NextUpdate: futureTime(cachedUpdateMinutes + 5),
}
goodNoUpdate := &ResponseDetails{Status: ocsp.Good}
revokedNoUpdate := &ResponseDetails{Status: ocsp.Revoked}
goodEarlierUpdate := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(cachedUpdateMinutes - 5),
}
revokedEarlierUpdate := &ResponseDetails{
Status: ocsp.Revoked,
NextUpdate: futureTime(cachedUpdateMinutes - 5),
}
goodLaterUpdate := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(cachedUpdateMinutes + 5),
}
revokedLaterUpdate := &ResponseDetails{
Status: ocsp.Revoked,
NextUpdate: futureTime(cachedUpdateMinutes + 5),
}
testCases := []struct {
name string
response *ResponseDetails
putReturn *ResponseDetails
cached *ResponseDetails
}{
{"unknown with later nextUpdate is not cached", unknownUpdate, originalCached, originalCached},
{"good with no nextUpdate clears cache", goodNoUpdate, goodNoUpdate, nil},
{"revoked with no nextUpdate clears cache", revokedNoUpdate, revokedNoUpdate, nil},
{"good with earlier nextUpdate is not cached", goodEarlierUpdate, originalCached, originalCached},
{"revoked with earlier nextUpdate is not cached", revokedEarlierUpdate, originalCached, originalCached},
{"good with later nextUpdate is cached", goodLaterUpdate, goodLaterUpdate, goodLaterUpdate},
{"revoked with later nextUpdate is cached", revokedLaterUpdate, revokedLaterUpdate, revokedLaterUpdate},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
cache := NewCache()
_ = cache.Update(testRequest, originalCached)
putReturn := cache.Update(testRequest, tc.response)
assert.Equal(t, tc.putReturn, putReturn, "expected Put to return %v, got %v", tc.putReturn, putReturn)
current, ok := cache.cache[testRequestKey]
if tc.cached == nil {
assert.False(t, ok, "expected cache to contain no entry, got %v", current)
return
}
assert.True(t, ok, "expected cache to contain %v, got nil", tc.cached)
assert.Equal(t, tc.cached, current, "expected cache to contain %v, got %v", tc.cached, current)
})
}
})
})
t.Run("get", func(t *testing.T) {
t.Run("empty cache returns nil", func(t *testing.T) {
cache := NewCache()
res := cache.Get(testRequest)
assert.Nil(t, res, "expected Get to return nil, got %v", res)
})
t.Run("valid entry returned", func(t *testing.T) {
cache := NewCache()
originalResponse := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(10),
}
cache.cache[testRequestKey] = originalResponse
res := cache.Get(testRequest)
assert.Equal(t, originalResponse, res, "expected Get to return %v, got %v", originalResponse, res)
})
t.Run("expired entry is deleted", func(t *testing.T) {
cache := NewCache()
originalResponse := &ResponseDetails{
Status: ocsp.Good,
NextUpdate: futureTime(-10),
}
cache.cache[testRequestKey] = originalResponse
res := cache.Get(testRequest)
assert.Nil(t, res, "expected Get to return nil, got %v", res)
cached, ok := cache.cache[testRequestKey]
assert.False(t, ok, "expected cache to contain no entry, got %v", cached)
})
})
}
func futureTime(minutes int) time.Time {
return time.Now().Add(time.Duration(minutes) * time.Minute).UTC()
}
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