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Diffstat (limited to 'internal/configfile/config_file.go')
-rw-r--r--internal/configfile/config_file.go52
1 files changed, 33 insertions, 19 deletions
diff --git a/internal/configfile/config_file.go b/internal/configfile/config_file.go
index b18d6a7..e589060 100644
--- a/internal/configfile/config_file.go
+++ b/internal/configfile/config_file.go
@@ -118,40 +118,63 @@ func Create(filename string, password []byte, plaintextNames bool,
return cf.WriteFile()
}
-// Load - read config file from disk and decrypt the
+// LoadAndDecrypt - read config file from disk and decrypt the
// contained key using "password".
// Returns the decrypted key and the ConfFile object
//
// If "password" is empty, the config file is read
// but the key is not decrypted (returns nil in its place).
-func Load(filename string, password []byte) ([]byte, *ConfFile, error) {
+func LoadAndDecrypt(filename string, password []byte) ([]byte, *ConfFile, error) {
+ cf, err := Load(filename)
+ if err != nil {
+ return nil, nil, err
+ }
+ if len(password) == 0 {
+ // We have validated the config file, but without a password we cannot
+ // decrypt the master key. Return only the parsed config.
+ return nil, cf, nil
+ // TODO: Make this an error in gocryptfs v1.7. All code should now call
+ // Load() instead of calling LoadAndDecrypt() with an empty password.
+ }
+
+ // Decrypt the masterkey using the password
+ key, err := cf.DecryptMasterKey(password)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ return key, cf, err
+}
+
+// Load loads and parses the config file at "filename".
+func Load(filename string) (*ConfFile, error) {
var cf ConfFile
cf.filename = filename
// Read from disk
js, err := ioutil.ReadFile(filename)
if err != nil {
- return nil, nil, err
+ return nil, err
}
if len(js) == 0 {
- return nil, nil, fmt.Errorf("Config file is empty")
+ return nil, fmt.Errorf("Config file is empty")
}
// Unmarshal
err = json.Unmarshal(js, &cf)
if err != nil {
tlog.Warn.Printf("Failed to unmarshal config file")
- return nil, nil, err
+ return nil, err
}
if cf.Version != contentenc.CurrentVersion {
- return nil, nil, fmt.Errorf("Unsupported on-disk format %d", cf.Version)
+ return nil, fmt.Errorf("Unsupported on-disk format %d", cf.Version)
}
// Check that all set feature flags are known
for _, flag := range cf.FeatureFlags {
if !cf.isFeatureFlagKnown(flag) {
- return nil, nil, fmt.Errorf("Unsupported feature flag %q", flag)
+ return nil, fmt.Errorf("Unsupported feature flag %q", flag)
}
}
@@ -181,20 +204,11 @@ func Load(filename string, password []byte) ([]byte, *ConfFile, error) {
`+tlog.ColorReset)
- return nil, nil, exitcodes.NewErr("Deprecated filesystem", exitcodes.DeprecatedFS)
- }
- if len(password) == 0 {
- // We have validated the config file, but without a password we cannot
- // decrypt the master key. Return only the parsed config.
- return nil, &cf, nil
- }
-
- key, err := cf.DecryptMasterKey(password)
- if err != nil {
- return nil, nil, err
+ return nil, exitcodes.NewErr("Deprecated filesystem", exitcodes.DeprecatedFS)
}
- return key, &cf, err
+ // All good
+ return &cf, nil
}
// DecryptMasterKey decrypts the masterkey stored in cf.EncryptedKey using