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validator.go
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validator.go
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package jose
import (
"errors"
"net/url"
"github.com/auth0/go-jwt-middleware/v2/jwks"
"github.com/auth0/go-jwt-middleware/v2/validator"
"github.com/lugondev/wallet-signer-manager/src/auth/entities"
"github.com/lugondev/wallet-signer-manager/src/infra/jwt"
)
type Validator struct {
*validator.Validator
}
var _ jwt.Validator = &Validator{}
func New(cfg *Config) (*Validator, error) {
issuerURL, err := url.Parse(cfg.IssuerURL)
if err != nil {
return nil, err
}
v, err := validator.New(
jwks.NewCachingProvider(issuerURL, cfg.CacheTTL).KeyFunc,
validator.RS256,
issuerURL.String(),
cfg.Audience,
validator.WithCustomClaims(func() validator.CustomClaims {
return NewClaims(cfg.CustomClaimPath)
}),
)
if err != nil {
return nil, err
}
return &Validator{v}, nil
}
func (v *Validator) ParseClaims(tokenClaims interface{}) (*entities.UserClaims, error) {
claims, ok := tokenClaims.(*validator.ValidatedClaims)
if !ok {
return nil, errors.New("invalid token claims")
}
userClaims := &entities.UserClaims{}
if qkmUserClaims, ok := v.qkmCustomClaimsExist(claims); ok {
userClaims.Tenant = qkmUserClaims.TenantID
userClaims.Permissions = qkmUserClaims.Permissions
} else {
userClaims.Tenant = claims.RegisteredClaims.Subject
if scopeClaims, ok := v.scopeClaimsExist(claims); ok {
userClaims.Permissions = scopeClaims
}
}
return userClaims, nil
}
func (v *Validator) qkmCustomClaimsExist(claims *validator.ValidatedClaims) (*CustomClaims, bool) {
if claims.CustomClaims == nil {
return nil, false
}
if qkmUserClaims := claims.CustomClaims.(*Claims).CustomClaims; qkmUserClaims != nil {
return qkmUserClaims, true
}
return nil, false
}
func (v *Validator) scopeClaimsExist(claims *validator.ValidatedClaims) ([]string, bool) {
if claims.CustomClaims == nil {
return nil, false
}
if scopeUserClaims := claims.CustomClaims.(*Claims).Scope; scopeUserClaims != nil {
return scopeUserClaims, true
}
return nil, false
}