diff options
Diffstat (limited to 'vendor/github.com/docker/libtrust/key_files.go')
| -rw-r--r-- | vendor/github.com/docker/libtrust/key_files.go | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/vendor/github.com/docker/libtrust/key_files.go b/vendor/github.com/docker/libtrust/key_files.go deleted file mode 100644 index c526de545..000000000 --- a/vendor/github.com/docker/libtrust/key_files.go +++ /dev/null @@ -1,255 +0,0 @@ -package libtrust - -import ( - "encoding/json" - "encoding/pem" - "errors" - "fmt" - "io/ioutil" - "os" - "strings" -) - -var ( - // ErrKeyFileDoesNotExist indicates that the private key file does not exist. - ErrKeyFileDoesNotExist = errors.New("key file does not exist") -) - -func readKeyFileBytes(filename string) ([]byte, error) { - data, err := ioutil.ReadFile(filename) - if err != nil { - if os.IsNotExist(err) { - err = ErrKeyFileDoesNotExist - } else { - err = fmt.Errorf("unable to read key file %s: %s", filename, err) - } - - return nil, err - } - - return data, nil -} - -/* - Loading and Saving of Public and Private Keys in either PEM or JWK format. -*/ - -// LoadKeyFile opens the given filename and attempts to read a Private Key -// encoded in either PEM or JWK format (if .json or .jwk file extension). -func LoadKeyFile(filename string) (PrivateKey, error) { - contents, err := readKeyFileBytes(filename) - if err != nil { - return nil, err - } - - var key PrivateKey - - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - key, err = UnmarshalPrivateKeyJWK(contents) - if err != nil { - return nil, fmt.Errorf("unable to decode private key JWK: %s", err) - } - } else { - key, err = UnmarshalPrivateKeyPEM(contents) - if err != nil { - return nil, fmt.Errorf("unable to decode private key PEM: %s", err) - } - } - - return key, nil -} - -// LoadPublicKeyFile opens the given filename and attempts to read a Public Key -// encoded in either PEM or JWK format (if .json or .jwk file extension). -func LoadPublicKeyFile(filename string) (PublicKey, error) { - contents, err := readKeyFileBytes(filename) - if err != nil { - return nil, err - } - - var key PublicKey - - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - key, err = UnmarshalPublicKeyJWK(contents) - if err != nil { - return nil, fmt.Errorf("unable to decode public key JWK: %s", err) - } - } else { - key, err = UnmarshalPublicKeyPEM(contents) - if err != nil { - return nil, fmt.Errorf("unable to decode public key PEM: %s", err) - } - } - - return key, nil -} - -// SaveKey saves the given key to a file using the provided filename. -// This process will overwrite any existing file at the provided location. -func SaveKey(filename string, key PrivateKey) error { - var encodedKey []byte - var err error - - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - // Encode in JSON Web Key format. - encodedKey, err = json.MarshalIndent(key, "", " ") - if err != nil { - return fmt.Errorf("unable to encode private key JWK: %s", err) - } - } else { - // Encode in PEM format. - pemBlock, err := key.PEMBlock() - if err != nil { - return fmt.Errorf("unable to encode private key PEM: %s", err) - } - encodedKey = pem.EncodeToMemory(pemBlock) - } - - err = ioutil.WriteFile(filename, encodedKey, os.FileMode(0600)) - if err != nil { - return fmt.Errorf("unable to write private key file %s: %s", filename, err) - } - - return nil -} - -// SavePublicKey saves the given public key to the file. -func SavePublicKey(filename string, key PublicKey) error { - var encodedKey []byte - var err error - - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - // Encode in JSON Web Key format. - encodedKey, err = json.MarshalIndent(key, "", " ") - if err != nil { - return fmt.Errorf("unable to encode public key JWK: %s", err) - } - } else { - // Encode in PEM format. - pemBlock, err := key.PEMBlock() - if err != nil { - return fmt.Errorf("unable to encode public key PEM: %s", err) - } - encodedKey = pem.EncodeToMemory(pemBlock) - } - - err = ioutil.WriteFile(filename, encodedKey, os.FileMode(0644)) - if err != nil { - return fmt.Errorf("unable to write public key file %s: %s", filename, err) - } - - return nil -} - -// Public Key Set files - -type jwkSet struct { - Keys []json.RawMessage `json:"keys"` -} - -// LoadKeySetFile loads a key set -func LoadKeySetFile(filename string) ([]PublicKey, error) { - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - return loadJSONKeySetFile(filename) - } - - // Must be a PEM format file - return loadPEMKeySetFile(filename) -} - -func loadJSONKeySetRaw(data []byte) ([]json.RawMessage, error) { - if len(data) == 0 { - // This is okay, just return an empty slice. - return []json.RawMessage{}, nil - } - - keySet := jwkSet{} - - err := json.Unmarshal(data, &keySet) - if err != nil { - return nil, fmt.Errorf("unable to decode JSON Web Key Set: %s", err) - } - - return keySet.Keys, nil -} - -func loadJSONKeySetFile(filename string) ([]PublicKey, error) { - contents, err := readKeyFileBytes(filename) - if err != nil && err != ErrKeyFileDoesNotExist { - return nil, err - } - - return UnmarshalPublicKeyJWKSet(contents) -} - -func loadPEMKeySetFile(filename string) ([]PublicKey, error) { - data, err := readKeyFileBytes(filename) - if err != nil && err != ErrKeyFileDoesNotExist { - return nil, err - } - - return UnmarshalPublicKeyPEMBundle(data) -} - -// AddKeySetFile adds a key to a key set -func AddKeySetFile(filename string, key PublicKey) error { - if strings.HasSuffix(filename, ".json") || strings.HasSuffix(filename, ".jwk") { - return addKeySetJSONFile(filename, key) - } - - // Must be a PEM format file - return addKeySetPEMFile(filename, key) -} - -func addKeySetJSONFile(filename string, key PublicKey) error { - encodedKey, err := json.Marshal(key) - if err != nil { - return fmt.Errorf("unable to encode trusted client key: %s", err) - } - - contents, err := readKeyFileBytes(filename) - if err != nil && err != ErrKeyFileDoesNotExist { - return err - } - - rawEntries, err := loadJSONKeySetRaw(contents) - if err != nil { - return err - } - - rawEntries = append(rawEntries, json.RawMessage(encodedKey)) - entriesWrapper := jwkSet{Keys: rawEntries} - - encodedEntries, err := json.MarshalIndent(entriesWrapper, "", " ") - if err != nil { - return fmt.Errorf("unable to encode trusted client keys: %s", err) - } - - err = ioutil.WriteFile(filename, encodedEntries, os.FileMode(0644)) - if err != nil { - return fmt.Errorf("unable to write trusted client keys file %s: %s", filename, err) - } - - return nil -} - -func addKeySetPEMFile(filename string, key PublicKey) error { - // Encode to PEM, open file for appending, write PEM. - file, err := os.OpenFile(filename, os.O_CREATE|os.O_APPEND|os.O_RDWR, os.FileMode(0644)) - if err != nil { - return fmt.Errorf("unable to open trusted client keys file %s: %s", filename, err) - } - defer file.Close() - - pemBlock, err := key.PEMBlock() - if err != nil { - return fmt.Errorf("unable to encoded trusted key: %s", err) - } - - _, err = file.Write(pem.EncodeToMemory(pemBlock)) - if err != nil { - return fmt.Errorf("unable to write trusted keys file: %s", err) - } - - return nil -} |