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/*
* recovery_test.go - tests for recovery passphrases
*
* Copyright 2019 Google LLC
*
* 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 actions
import (
"io/ioutil"
"os"
"path/filepath"
"strings"
"testing"
"github.com/google/fscrypt/crypto"
)
func TestRecoveryPassphrase(t *testing.T) {
tempDir, err := ioutil.TempDir("", "fscrypt")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tempDir)
recoveryFile := filepath.Join(tempDir, "recovery.txt")
firstProtector, policy, err := makeBoth()
if err != nil {
t.Fatal(err)
}
defer cleanupPolicy(policy)
defer cleanupProtector(firstProtector)
// Add a recovery passphrase and verify that it worked correctly.
passphrase, recoveryProtector, err := AddRecoveryPassphrase(policy, "foo")
if err != nil {
t.Fatal(err)
}
defer cleanupProtector(recoveryProtector)
if passphrase.Len() != 20 {
t.Error("Recovery passphrase has wrong length")
}
if recoveryProtector.data.Name != "Recovery passphrase for foo" {
t.Error("Recovery passphrase protector has wrong name")
}
if len(policy.ProtectorDescriptors()) != 2 {
t.Error("There should be 2 protectors now")
}
getPassphraseFn := func(info ProtectorInfo, retry bool) (*crypto.Key, error) {
return passphrase.Clone()
}
recoveryProtector.Lock()
if err = recoveryProtector.Unlock(getPassphraseFn); err != nil {
t.Fatal(err)
}
// Test writing the recovery instructions.
if err = WriteRecoveryInstructions(passphrase, recoveryFile); err != nil {
t.Fatal(err)
}
contentsBytes, err := ioutil.ReadFile(recoveryFile)
if err != nil {
t.Fatal(err)
}
contents := string(contentsBytes)
if !strings.Contains(contents, string(passphrase.Data())) {
t.Error("Recovery instructions don't actually contain the passphrase!")
}
// Test for protector naming collision.
if passphrase, recoveryProtector, err = AddRecoveryPassphrase(policy, "foo"); err != nil {
t.Fatal(err)
}
defer cleanupProtector(recoveryProtector)
if recoveryProtector.data.Name != "Recovery passphrase for foo (2)" {
t.Error("Recovery passphrase protector has wrong name (after naming collision)")
}
}
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