moving jwt-go from github.com/dgrijalva/jwt-go v3.2.0 to github.com/form3tech-oss/jwt-go v3.2.2

Signed-off-by: Roland.Ma <rolandma@yunify.com>

vendor/github.com/form3tech-oss/jwt-go/.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
 bin
+.idea/
 
 

vendor/github.com/form3tech-oss/jwt-go/.travis.yml

@@ -5,9 +5,8 @@ script:
     - go test -v ./...
 
 go:
-  - 1.3
-  - 1.4
-  - 1.5
-  - 1.6
-  - 1.7
+  - 1.12
+  - 1.13
+  - 1.14
+  - 1.15
   - tip

vendor/github.com/form3tech-oss/jwt-go/README.md

@@ -9,7 +9,7 @@ A [go](http://www.golang.org) (or 'golang' for search engine friendliness) imple
 
 **SECURITY NOTICE:** Some older versions of Go have a security issue in the cryotp/elliptic. Recommendation is to upgrade to at least 1.8.3. See issue #216 for more detail.
 
-**SECURITY NOTICE:** It's important that you [validate the `alg` presented is what you expect](https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/). This library attempts to make it easy to do the right thing by requiring key types match the expected alg, but you should take the extra step to verify it in your usage.  See the examples provided.
+**SECURITY NOTICE:** It's important that you [validate the `alg` presented is what you expect](https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/). This library attempts to make it easy to do the right thing by requiring key types match the expected alg, but you should take the extra step to verify it in your usage.  See the examples provided.
 
 ## What the heck is a JWT?
 
@@ -19,7 +19,7 @@ In short, it's a signed JSON object that does something useful (for example, aut
 
 The first part is called the header.  It contains the necessary information for verifying the last part, the signature.  For example, which encryption method was used for signing and what key was used.
 
-The part in the middle is the interesting bit.  It's called the Claims and contains the actual stuff you care about.  Refer to [the RFC](http://self-issued.info/docs/draft-jones-json-web-token.html) for information about reserved keys and the proper way to add your own.
+The part in the middle is the interesting bit.  It's called the Claims and contains the actual stuff you care about.  Refer to [the RFC](http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html) for information about reserved keys and the proper way to add your own.
 
 ## What's in the box?
 
@@ -37,7 +37,7 @@ See [the project documentation](https://godoc.org/github.com/dgrijalva/jwt-go) f
 
 This library publishes all the necessary components for adding your own signing methods.  Simply implement the `SigningMethod` interface and register a factory method using `RegisterSigningMethod`.  
 
-Here's an example of an extension that integrates with the Google App Engine signing tools: https://github.com/someone1/gcp-jwt-go
+Here's an example of an extension that integrates with multiple Google Cloud Platform signing tools (AppEngine, IAM API, Cloud KMS): https://github.com/someone1/gcp-jwt-go
 
 ## Compliance
 
@@ -93,6 +93,10 @@ Without going too far down the rabbit hole, here's a description of the interact
 * OAuth defines several options for passing around authentication data. One popular method is called a "bearer token". A bearer token is simply a string that _should_ only be held by an authenticated user. Thus, simply presenting this token proves your identity. You can probably derive from here why a JWT might make a good bearer token.
 * Because bearer tokens are used for authentication, it's important they're kept secret. This is why transactions that use bearer tokens typically happen over SSL.
 
+### Troubleshooting
+
+This library uses descriptive error messages whenever possible. If you are not getting the expected result, have a look at the errors. The most common place people get stuck is providing the correct type of key to the parser. See the above section on signing methods and key types.
+
 ## More
 
 Documentation can be found [on godoc.org](http://godoc.org/github.com/dgrijalva/jwt-go).

vendor/github.com/form3tech-oss/jwt-go/claims.go

@@ -16,7 +16,7 @@ type Claims interface {
 // https://tools.ietf.org/html/rfc7519#section-4.1
 // See examples for how to use this with your own claim types
 type StandardClaims struct {
-	Audience  string `json:"aud,omitempty"`
+	Audience  []string `json:"aud,omitempty"`
 	ExpiresAt int64  `json:"exp,omitempty"`
 	Id        string `json:"jti,omitempty"`
 	IssuedAt  int64  `json:"iat,omitempty"`
@@ -90,15 +90,17 @@ func (c *StandardClaims) VerifyNotBefore(cmp int64, req bool) bool {
 
 // ----- helpers
 
-func verifyAud(aud string, cmp string, required bool) bool {
-	if aud == "" {
+func verifyAud(aud []string, cmp string, required bool) bool {
+	if len(aud) == 0 {
 		return !required
 	}
-	if subtle.ConstantTimeCompare([]byte(aud), []byte(cmp)) != 0 {
-		return true
-	} else {
-		return false
+
+	for _, a := range aud {
+		if subtle.ConstantTimeCompare([]byte(a), []byte(cmp)) != 0 {
+			return true
+		}
 	}
+	return false
 }
 
 func verifyExp(exp int64, now int64, required bool) bool {

vendor/github.com/form3tech-oss/jwt-go/ecdsa_utils.go

@@ -25,7 +25,9 @@ func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) {
 	// Parse the key
 	var parsedKey interface{}
 	if parsedKey, err = x509.ParseECPrivateKey(block.Bytes); err != nil {
-		return nil, err
+		if parsedKey, err = x509.ParsePKCS8PrivateKey(block.Bytes); err != nil {
+			return nil, err
+		}
 	}
 
 	var pkey *ecdsa.PrivateKey

vendor/github.com/form3tech-oss/jwt-go/map_claims.go

@@ -13,7 +13,15 @@ type MapClaims map[string]interface{}
 // Compares the aud claim against cmp.
 // If required is false, this method will return true if the value matches or is unset
 func (m MapClaims) VerifyAudience(cmp string, req bool) bool {
-	aud, _ := m["aud"].(string)
+	aud, ok := m["aud"].([]string)
+	if !ok {
+		strAud, ok := m["aud"].(string)
+		if !ok {
+			return false
+		}
+		aud = append(aud, strAud)
+	}
+
 	return verifyAud(aud, cmp, req)
 }
 

vendor/github.com/form3tech-oss/jwt-go/rsa_pss.go

@@ -12,9 +12,14 @@ import (
 type SigningMethodRSAPSS struct {
 	*SigningMethodRSA
 	Options *rsa.PSSOptions
+	// VerifyOptions is optional. If set overrides Options for rsa.VerifyPPS.
+	// Used to accept tokens signed with rsa.PSSSaltLengthAuto, what doesn't follow
+	// https://tools.ietf.org/html/rfc7518#section-3.5 but was used previously.
+	// See https://github.com/dgrijalva/jwt-go/issues/285#issuecomment-437451244 for details.
+	VerifyOptions *rsa.PSSOptions
 }
 
-// Specific instances for RS/PS and company
+// Specific instances for RS/PS and company.
 var (
 	SigningMethodPS256 *SigningMethodRSAPSS
 	SigningMethodPS384 *SigningMethodRSAPSS
@@ -24,13 +29,15 @@ var (
 func init() {
 	// PS256
 	SigningMethodPS256 = &SigningMethodRSAPSS{
-		&SigningMethodRSA{
+		SigningMethodRSA: &SigningMethodRSA{
 			Name: "PS256",
 			Hash: crypto.SHA256,
 		},
-		&rsa.PSSOptions{
+		Options: &rsa.PSSOptions{
+			SaltLength: rsa.PSSSaltLengthEqualsHash,
+		},
+		VerifyOptions: &rsa.PSSOptions{
 			SaltLength: rsa.PSSSaltLengthAuto,
-			Hash:       crypto.SHA256,
 		},
 	}
 	RegisterSigningMethod(SigningMethodPS256.Alg(), func() SigningMethod {
@@ -39,13 +46,15 @@ func init() {
 
 	// PS384
 	SigningMethodPS384 = &SigningMethodRSAPSS{
-		&SigningMethodRSA{
+		SigningMethodRSA: &SigningMethodRSA{
 			Name: "PS384",
 			Hash: crypto.SHA384,
 		},
-		&rsa.PSSOptions{
+		Options: &rsa.PSSOptions{
+			SaltLength: rsa.PSSSaltLengthEqualsHash,
+		},
+		VerifyOptions: &rsa.PSSOptions{
 			SaltLength: rsa.PSSSaltLengthAuto,
-			Hash:       crypto.SHA384,
 		},
 	}
 	RegisterSigningMethod(SigningMethodPS384.Alg(), func() SigningMethod {
@@ -54,13 +63,15 @@ func init() {
 
 	// PS512
 	SigningMethodPS512 = &SigningMethodRSAPSS{
-		&SigningMethodRSA{
+		SigningMethodRSA: &SigningMethodRSA{
 			Name: "PS512",
 			Hash: crypto.SHA512,
 		},
-		&rsa.PSSOptions{
+		Options: &rsa.PSSOptions{
+			SaltLength: rsa.PSSSaltLengthEqualsHash,
+		},
+		VerifyOptions: &rsa.PSSOptions{
 			SaltLength: rsa.PSSSaltLengthAuto,
-			Hash:       crypto.SHA512,
 		},
 	}
 	RegisterSigningMethod(SigningMethodPS512.Alg(), func() SigningMethod {
@@ -94,7 +105,12 @@ func (m *SigningMethodRSAPSS) Verify(signingString, signature string, key interf
 	hasher := m.Hash.New()
 	hasher.Write([]byte(signingString))
 
-	return rsa.VerifyPSS(rsaKey, m.Hash, hasher.Sum(nil), sig, m.Options)
+	opts := m.Options
+	if m.VerifyOptions != nil {
+		opts = m.VerifyOptions
+	}
+
+	return rsa.VerifyPSS(rsaKey, m.Hash, hasher.Sum(nil), sig, opts)
 }
 
 // Implements the Sign method from SigningMethod

vendor/github.com/form3tech-oss/jwt-go/rsa_utils.go

@@ -8,7 +8,7 @@ import (
 )
 
 var (
-	ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be PEM encoded PKCS1 or PKCS8 private key")
+	ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be a PEM encoded PKCS1 or PKCS8 key")
 	ErrNotRSAPrivateKey    = errors.New("Key is not a valid RSA private key")
 	ErrNotRSAPublicKey     = errors.New("Key is not a valid RSA public key")
 )