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Add support for AssumeRoleWithWebIdentity (#6985)

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This commit is contained in:
Harshavardhana
2019-01-04 13:48:12 -08:00
committed by kannappanr
parent e82dcd195c
commit 2d19011a1d
14 changed files with 553 additions and 91 deletions
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30
pkg/iam/validator/jwt.go
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@@ -34,8 +34,8 @@ import (
// JWKSArgs - RSA authentication target arguments
type JWKSArgs struct {
URL *xnet.URL `json:"url"`
publicKey crypto.PublicKey
URL *xnet.URL `json:"url"`
publicKeys map[string]crypto.PublicKey
}
// Validate JWT authentication target arguments
@@ -64,9 +64,14 @@ func (r *JWKSArgs) PopulatePublicKey() error {
return err
}
r.publicKey, err = jwk.Keys[0].DecodePublicKey()
if err != nil {
return err
r.publicKeys = make(map[string]crypto.PublicKey)
for _, key := range jwk.Keys {
var publicKey crypto.PublicKey
publicKey, err = key.DecodePublicKey()
if err != nil {
return err
}
r.publicKeys[key.Kid] = publicKey
}
return nil
@@ -172,18 +177,19 @@ func newCustomHTTPTransport(insecure bool) *http.Transport {
// Validate - validates the access token.
func (p *JWT) Validate(token, dsecs string) (map[string]interface{}, error) {
jp := new(jwtgo.Parser)
jp.ValidMethods = []string{"RS256", "RS384", "RS512", "ES256", "ES384", "ES512"}
keyFuncCallback := func(jwtToken *jwtgo.Token) (interface{}, error) {
if _, ok := jwtToken.Method.(*jwtgo.SigningMethodRSA); !ok {
if _, ok = jwtToken.Method.(*jwtgo.SigningMethodECDSA); ok {
return p.args.publicKey, nil
}
return nil, fmt.Errorf("Unexpected signing method: %v", jwtToken.Header["alg"])
kid, ok := jwtToken.Header["kid"].(string)
if !ok {
return nil, fmt.Errorf("Invalid kid value %v", jwtToken.Header["kid"])
}
return p.args.publicKey, nil
return p.args.publicKeys[kid], nil
}
var claims jwtgo.MapClaims
jwtToken, err := jwtgo.ParseWithClaims(token, &claims, keyFuncCallback)
jwtToken, err := jp.ParseWithClaims(token, &claims, keyFuncCallback)
if err != nil {
if err = p.args.PopulatePublicKey(); err != nil {
return nil, err