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introspector.go
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/
introspector.go
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// Copyright © 2017 Aeneas Rekkas <aeneas+oss@aeneas.io>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package oauth2
import (
"context"
"github.com/ory/fosite"
"github.com/pkg/errors"
)
type CoreValidator struct {
CoreStrategy
CoreStorage
ScopeStrategy fosite.ScopeStrategy
DisableRefreshTokenValidation bool
}
func (c *CoreValidator) IntrospectToken(ctx context.Context, token string, tokenType fosite.TokenType, accessRequest fosite.AccessRequester, scopes []string) (err error) {
if c.DisableRefreshTokenValidation {
return c.introspectAccessToken(ctx, token, accessRequest, scopes)
}
switch tokenType {
case fosite.RefreshToken:
if err = c.introspectRefreshToken(ctx, token, accessRequest, scopes); err == nil {
return nil
} else if err = c.introspectAccessToken(ctx, token, accessRequest, scopes); err == nil {
return nil
}
return err
}
if err = c.introspectAccessToken(ctx, token, accessRequest, scopes); err == nil {
return nil
} else if err := c.introspectRefreshToken(ctx, token, accessRequest, scopes); err == nil {
return nil
}
return err
}
func matchScopes(ss fosite.ScopeStrategy, granted, scopes []string) error {
for _, scope := range scopes {
if scope == "" {
continue
}
if !ss(granted, scope) {
return errors.Wrapf(fosite.ErrInvalidScope, "Scope %s was not granted", scope)
}
}
return nil
}
func (c *CoreValidator) introspectAccessToken(ctx context.Context, token string, accessRequest fosite.AccessRequester, scopes []string) error {
sig := c.CoreStrategy.AccessTokenSignature(token)
or, err := c.CoreStorage.GetAccessTokenSession(ctx, sig, accessRequest.GetSession())
if err != nil {
return errors.Wrap(fosite.ErrRequestUnauthorized, err.Error())
} else if err := c.CoreStrategy.ValidateAccessToken(ctx, or, token); err != nil {
return err
}
if err := matchScopes(c.ScopeStrategy, or.GetGrantedScopes(), scopes); err != nil {
return err
}
accessRequest.Merge(or)
return nil
}
func (c *CoreValidator) introspectRefreshToken(ctx context.Context, token string, accessRequest fosite.AccessRequester, scopes []string) error {
sig := c.CoreStrategy.RefreshTokenSignature(token)
or, err := c.CoreStorage.GetRefreshTokenSession(ctx, sig, accessRequest.GetSession())
if err != nil {
return errors.Wrap(fosite.ErrRequestUnauthorized, err.Error())
} else if err := c.CoreStrategy.ValidateRefreshToken(ctx, or, token); err != nil {
return err
}
if err := matchScopes(c.ScopeStrategy, or.GetGrantedScopes(), scopes); err != nil {
return err
}
accessRequest.Merge(or)
return nil
}