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// Copyright The Notary Project Authors.
// 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
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package revocation
import (
"context"
"fmt"
"net/http"
"os"
"time"
"github.com/notaryproject/notation-core-go/revocation"
corecrl "github.com/notaryproject/notation-core-go/revocation/crl"
"github.com/notaryproject/notation-core-go/revocation/purpose"
"github.com/notaryproject/notation-go/dir"
"github.com/notaryproject/notation-go/verifier/crl"
"github.com/notaryproject/notation/internal/httputil"
clicrl "github.com/notaryproject/notation/internal/revocation/crl"
)
// NewRevocationValidator returns a revocation.Validator given the certificate
// purpose
func NewRevocationValidator(ctx context.Context, purpose purpose.Purpose) (revocation.Validator, error) {
// err is always nil
crlFetcher, _ := corecrl.NewHTTPFetcher(httputil.NewClient(ctx, &http.Client{Timeout: 5 * time.Second}))
crlFetcher.DiscardCacheError = true // discard crl cache error
cacheRoot, _ := dir.CacheFS().SysPath(dir.PathCRLCache) // err is always nil
fileCache, err := crl.NewFileCache(cacheRoot)
if err != nil {
// discard NewFileCache error as cache errors are not critical
fmt.Fprintf(os.Stderr, "Warning: %v\n", err)
} else {
crlFetcher.Cache = &clicrl.CacheWithLog{
Cache: fileCache,
DiscardCacheError: crlFetcher.DiscardCacheError,
}
}
return revocation.NewWithOptions(revocation.Options{
OCSPHTTPClient: httputil.NewClient(ctx, &http.Client{Timeout: 2 * time.Second}),
CRLFetcher: crlFetcher,
CertChainPurpose: purpose,
})
}
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