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strategy_jwt.go
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strategy_jwt.go
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package oauth2
import (
"strings"
"github.com/ory-am/fosite"
"github.com/ory-am/fosite/token/jwt"
jwtx "github.com/dgrijalva/jwt-go"
"github.com/pkg/errors"
"golang.org/x/net/context"
)
// RS256JWTStrategy is a JWT RS256 strategy.
type RS256JWTStrategy struct {
*jwt.RS256JWTStrategy
}
func (h RS256JWTStrategy) signature(token string) string {
split := strings.Split(token, ".")
if len(split) != 3 {
return ""
}
return split[2]
}
func (h RS256JWTStrategy) AccessTokenSignature(token string) string {
return h.signature(token)
}
func (h RS256JWTStrategy) RefreshTokenSignature(token string) string {
return h.signature(token)
}
func (h RS256JWTStrategy) AuthorizeCodeSignature(token string) string {
return h.signature(token)
}
func (h *RS256JWTStrategy) GenerateAccessToken(_ context.Context, requester fosite.Requester) (token string, signature string, err error) {
return h.generate(requester)
}
func (h *RS256JWTStrategy) ValidateAccessToken(_ context.Context, _ fosite.Requester, token string) error {
return h.validate(token)
}
func (h *RS256JWTStrategy) GenerateRefreshToken(_ context.Context, requester fosite.Requester) (token string, signature string, err error) {
return h.generate(requester)
}
func (h *RS256JWTStrategy) ValidateRefreshToken(_ context.Context, _ fosite.Requester, token string) error {
return h.validate(token)
}
func (h *RS256JWTStrategy) GenerateAuthorizeCode(_ context.Context, requester fosite.Requester) (token string, signature string, err error) {
return h.generate(requester)
}
func (h *RS256JWTStrategy) ValidateAuthorizeCode(_ context.Context, requester fosite.Requester, token string) error {
return h.validate(token)
}
func (h *RS256JWTStrategy) validate(token string) error {
t, err := h.RS256JWTStrategy.Decode(token)
if err != nil {
return err
}
// validate the token
if err = t.Claims.Valid(); err != nil {
if e, ok := err.(*jwtx.ValidationError); ok {
switch e.Errors {
case jwtx.ValidationErrorMalformed:
return errors.Wrap(fosite.ErrInvalidTokenFormat, err.Error())
case jwtx.ValidationErrorUnverifiable:
return errors.Wrap(fosite.ErrTokenSignatureMismatch, err.Error())
case jwtx.ValidationErrorSignatureInvalid:
return errors.Wrap(fosite.ErrTokenSignatureMismatch, err.Error())
case jwtx.ValidationErrorAudience:
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
case jwtx.ValidationErrorExpired:
return errors.Wrap(fosite.ErrTokenExpired, err.Error())
case jwtx.ValidationErrorIssuedAt:
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
case jwtx.ValidationErrorIssuer :
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
case jwtx.ValidationErrorNotValidYet:
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
case jwtx.ValidationErrorId:
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
case jwtx.ValidationErrorClaimsInvalid :
return errors.Wrap(fosite.ErrTokenClaim, err.Error())
}
return errors.Wrap(fosite.ErrRequestUnauthorized, err.Error())
}
}
return nil
}
func (h *RS256JWTStrategy) generate(requester fosite.Requester) (string, string, error) {
if jwtSession, ok := requester.GetSession().(JWTSessionContainer); !ok {
return "", "", errors.New("Session must be of type JWTSessionContainer")
} else if jwtSession.GetJWTClaims() == nil {
return "", "", errors.New("GetTokenClaims() must not be nil")
} else {
return h.RS256JWTStrategy.Generate(jwtSession.GetJWTClaims().ToMapClaims(), jwtSession.GetJWTHeader())
}
}