vendor: upgrade "dgrijalva/jwt-go"

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

Gopkg.lock

@@ -46,8 +46,8 @@
 [[projects]]
   name = "github.com/dgrijalva/jwt-go"
   packages = ["."]
-  revision = "d2709f9f1f31ebcda9651b03077758c1f3a0018c"
-  version = "v3.0.0"
+  revision = "06ea1031745cb8b3dab3f6a236daf2b0aa468b7e"
+  version = "v3.2.0"
 
 [[projects]]
   name = "github.com/dustin/go-humanize"

vendor/github.com/dgrijalva/jwt-go/ecdsa.go

@@ -14,6 +14,7 @@ var (
 )
 
 // Implements the ECDSA family of signing methods signing methods
+// Expects *ecdsa.PrivateKey for signing and *ecdsa.PublicKey for verification
 type SigningMethodECDSA struct {
 	Name      string
 	Hash      crypto.Hash

vendor/github.com/dgrijalva/jwt-go/errors.go

@@ -51,13 +51,9 @@ func (e ValidationError) Error() string {
 	} else {
 		return "token is invalid"
 	}
-	return e.Inner.Error()
 }
 
 // No errors
 func (e *ValidationError) valid() bool {
-	if e.Errors > 0 {
-		return false
-	}
-	return true
+	return e.Errors == 0
 }

vendor/github.com/dgrijalva/jwt-go/hmac.go

@@ -7,6 +7,7 @@ import (
 )
 
 // Implements the HMAC-SHA family of signing methods signing methods
+// Expects key type of []byte for both signing and validation
 type SigningMethodHMAC struct {
 	Name string
 	Hash crypto.Hash
@@ -90,5 +91,5 @@ func (m *SigningMethodHMAC) Sign(signingString string, key interface{}) (string,
 		return EncodeSegment(hasher.Sum(nil)), nil
 	}
 
-	return "", ErrInvalidKey
+	return "", ErrInvalidKeyType
 }

vendor/github.com/dgrijalva/jwt-go/parser.go

@@ -8,8 +8,9 @@ import (
 )
 
 type Parser struct {
-	ValidMethods  []string // If populated, only these methods will be considered valid
-	UseJSONNumber bool     // Use JSON Number format in JSON decoder
+	ValidMethods         []string // If populated, only these methods will be considered valid
+	UseJSONNumber        bool     // Use JSON Number format in JSON decoder
+	SkipClaimsValidation bool     // Skip claims validation during token parsing
 }
 
 // Parse, validate, and return a token.
@@ -20,55 +21,9 @@ func (p *Parser) Parse(tokenString string, keyFunc Keyfunc) (*Token, error) {
 }
 
 func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyfunc) (*Token, error) {
-	parts := strings.Split(tokenString, ".")
-	if len(parts) != 3 {
-		return nil, NewValidationError("token contains an invalid number of segments", ValidationErrorMalformed)
-	}
-
-	var err error
-	token := &Token{Raw: tokenString}
-
-	// parse Header
-	var headerBytes []byte
-	if headerBytes, err = DecodeSegment(parts[0]); err != nil {
-		if strings.HasPrefix(strings.ToLower(tokenString), "bearer ") {
-			return token, NewValidationError("tokenstring should not contain 'bearer '", ValidationErrorMalformed)
-		}
-		return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
-	}
-	if err = json.Unmarshal(headerBytes, &token.Header); err != nil {
-		return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
-	}
-
-	// parse Claims
-	var claimBytes []byte
-	token.Claims = claims
-
-	if claimBytes, err = DecodeSegment(parts[1]); err != nil {
-		return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
-	}
-	dec := json.NewDecoder(bytes.NewBuffer(claimBytes))
-	if p.UseJSONNumber {
-		dec.UseNumber()
-	}
-	// JSON Decode.  Special case for map type to avoid weird pointer behavior
-	if c, ok := token.Claims.(MapClaims); ok {
-		err = dec.Decode(&c)
-	} else {
-		err = dec.Decode(&claims)
-	}
-	// Handle decode error
+	token, parts, err := p.ParseUnverified(tokenString, claims)
 	if err != nil {
-		return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
-	}
-
-	// Lookup signature method
-	if method, ok := token.Header["alg"].(string); ok {
-		if token.Method = GetSigningMethod(method); token.Method == nil {
-			return token, NewValidationError("signing method (alg) is unavailable.", ValidationErrorUnverifiable)
-		}
-	} else {
-		return token, NewValidationError("signing method (alg) is unspecified.", ValidationErrorUnverifiable)
+		return token, err
 	}
 
 	// Verify signing method is in the required set
@@ -95,20 +50,25 @@ func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyf
 	}
 	if key, err = keyFunc(token); err != nil {
 		// keyFunc returned an error
+		if ve, ok := err.(*ValidationError); ok {
+			return token, ve
+		}
 		return token, &ValidationError{Inner: err, Errors: ValidationErrorUnverifiable}
 	}
 
 	vErr := &ValidationError{}
 
 	// Validate Claims
-	if err := token.Claims.Valid(); err != nil {
-
-		// If the Claims Valid returned an error, check if it is a validation error,
-		// If it was another error type, create a ValidationError with a generic ClaimsInvalid flag set
-		if e, ok := err.(*ValidationError); !ok {
-			vErr = &ValidationError{Inner: err, Errors: ValidationErrorClaimsInvalid}
-		} else {
-			vErr = e
+	if !p.SkipClaimsValidation {
+		if err := token.Claims.Valid(); err != nil {
+
+			// If the Claims Valid returned an error, check if it is a validation error,
+			// If it was another error type, create a ValidationError with a generic ClaimsInvalid flag set
+			if e, ok := err.(*ValidationError); !ok {
+				vErr = &ValidationError{Inner: err, Errors: ValidationErrorClaimsInvalid}
+			} else {
+				vErr = e
+			}
 		}
 	}
 
@@ -126,3 +86,63 @@ func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyf
 
 	return token, vErr
 }
+
+// WARNING: Don't use this method unless you know what you're doing
+//
+// This method parses the token but doesn't validate the signature. It's only
+// ever useful in cases where you know the signature is valid (because it has
+// been checked previously in the stack) and you want to extract values from
+// it.
+func (p *Parser) ParseUnverified(tokenString string, claims Claims) (token *Token, parts []string, err error) {
+	parts = strings.Split(tokenString, ".")
+	if len(parts) != 3 {
+		return nil, parts, NewValidationError("token contains an invalid number of segments", ValidationErrorMalformed)
+	}
+
+	token = &Token{Raw: tokenString}
+
+	// parse Header
+	var headerBytes []byte
+	if headerBytes, err = DecodeSegment(parts[0]); err != nil {
+		if strings.HasPrefix(strings.ToLower(tokenString), "bearer ") {
+			return token, parts, NewValidationError("tokenstring should not contain 'bearer '", ValidationErrorMalformed)
+		}
+		return token, parts, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
+	}
+	if err = json.Unmarshal(headerBytes, &token.Header); err != nil {
+		return token, parts, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
+	}
+
+	// parse Claims
+	var claimBytes []byte
+	token.Claims = claims
+
+	if claimBytes, err = DecodeSegment(parts[1]); err != nil {
+		return token, parts, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
+	}
+	dec := json.NewDecoder(bytes.NewBuffer(claimBytes))
+	if p.UseJSONNumber {
+		dec.UseNumber()
+	}
+	// JSON Decode.  Special case for map type to avoid weird pointer behavior
+	if c, ok := token.Claims.(MapClaims); ok {
+		err = dec.Decode(&c)
+	} else {
+		err = dec.Decode(&claims)
+	}
+	// Handle decode error
+	if err != nil {
+		return token, parts, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
+	}
+
+	// Lookup signature method
+	if method, ok := token.Header["alg"].(string); ok {
+		if token.Method = GetSigningMethod(method); token.Method == nil {
+			return token, parts, NewValidationError("signing method (alg) is unavailable.", ValidationErrorUnverifiable)
+		}
+	} else {
+		return token, parts, NewValidationError("signing method (alg) is unspecified.", ValidationErrorUnverifiable)
+	}
+
+	return token, parts, nil
+}

vendor/github.com/dgrijalva/jwt-go/rsa.go

@@ -7,6 +7,7 @@ import (
 )
 
 // Implements the RSA family of signing methods signing methods
+// Expects *rsa.PrivateKey for signing and *rsa.PublicKey for validation
 type SigningMethodRSA struct {
 	Name string
 	Hash crypto.Hash
@@ -44,7 +45,7 @@ func (m *SigningMethodRSA) Alg() string {
 }
 
 // Implements the Verify method from SigningMethod
-// For this signing method, must be an rsa.PublicKey structure.
+// For this signing method, must be an *rsa.PublicKey structure.
 func (m *SigningMethodRSA) Verify(signingString, signature string, key interface{}) error {
 	var err error
 
@@ -73,7 +74,7 @@ func (m *SigningMethodRSA) Verify(signingString, signature string, key interface
 }
 
 // Implements the Sign method from SigningMethod
-// For this signing method, must be an rsa.PrivateKey structure.
+// For this signing method, must be an *rsa.PrivateKey structure.
 func (m *SigningMethodRSA) Sign(signingString string, key interface{}) (string, error) {
 	var rsaKey *rsa.PrivateKey
 	var ok bool

vendor/github.com/dgrijalva/jwt-go/rsa_utils.go

@@ -39,6 +39,38 @@ func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) {
 	return pkey, nil
 }
 
+// Parse PEM encoded PKCS1 or PKCS8 private key protected with password
+func ParseRSAPrivateKeyFromPEMWithPassword(key []byte, password string) (*rsa.PrivateKey, error) {
+	var err error
+
+	// Parse PEM block
+	var block *pem.Block
+	if block, _ = pem.Decode(key); block == nil {
+		return nil, ErrKeyMustBePEMEncoded
+	}
+
+	var parsedKey interface{}
+
+	var blockDecrypted []byte
+	if blockDecrypted, err = x509.DecryptPEMBlock(block, []byte(password)); err != nil {
+		return nil, err
+	}
+
+	if parsedKey, err = x509.ParsePKCS1PrivateKey(blockDecrypted); err != nil {
+		if parsedKey, err = x509.ParsePKCS8PrivateKey(blockDecrypted); err != nil {
+			return nil, err
+		}
+	}
+
+	var pkey *rsa.PrivateKey
+	var ok bool
+	if pkey, ok = parsedKey.(*rsa.PrivateKey); !ok {
+		return nil, ErrNotRSAPrivateKey
+	}
+
+	return pkey, nil
+}
+
 // Parse PEM encoded PKCS1 or PKCS8 public key
 func ParseRSAPublicKeyFromPEM(key []byte) (*rsa.PublicKey, error) {
 	var err error