Beispiel #1
0
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-6
func (c *RefreshTokenGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder, session interface{}) error {
	if requester.GetGrantType() != "refresh_token" {
		return nil
	}

	access, err := c.Enigma.GenerateChallenge(requester.GetClient().GetHashedSecret())
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateAccessTokenSession(access.Signature, requester, &core.TokenSession{Extra: session}); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	refresh, err := c.Enigma.GenerateChallenge(requester.GetClient().GetHashedSecret())
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateRefreshTokenSession(refresh.Signature, requester, &core.TokenSession{Extra: session}); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	challenge := new(enigma.Challenge)
	challenge.FromString(req.Form.Get("refresh_token"))
	if err := c.Store.DeleteRefreshTokenSession(challenge.Signature); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	responder.SetAccessToken(access.String())
	responder.SetTokenType("bearer")
	responder.SetExtra("expires_in", strconv.Itoa(int(c.AccessTokenLifespan/time.Second)))
	responder.SetExtra("scope", strings.Join(requester.GetGrantedScopes(), " "))
	responder.SetExtra("refresh_token", refresh.String())
	return nil
}
Beispiel #2
0
// ValidateTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-6
func (c *RefreshTokenGrantHandler) ValidateTokenEndpointRequest(_ context.Context, req *http.Request, request fosite.AccessRequester, session interface{}) error {
	// grant_type REQUIRED.
	// Value MUST be set to "client_credentials".
	if request.GetGrantType() != "refresh_token" {
		return nil
	}

	// The authorization server MUST ... validate the refresh token.
	challenge := new(enigma.Challenge)
	challenge.FromString(req.Form.Get("refresh_token"))
	if err := c.Enigma.ValidateChallenge(request.GetClient().GetHashedSecret(), challenge); err != nil {
		return errors.New(fosite.ErrInvalidRequest)
	}

	ar, err := c.Store.GetRefreshTokenSession(challenge.Signature, &core.TokenSession{Extra: session})
	if err == pkg.ErrNotFound {
		return errors.New(fosite.ErrInvalidRequest)
	} else if err != nil {
		return errors.New(fosite.ErrServerError)
	}

	// The authorization server MUST ... and ensure that the refresh token was issued to the authenticated client
	if ar.GetClient().GetID() != request.GetClient().GetID() {
		return errors.New(fosite.ErrInvalidRequest)
	}

	request.SetGrantTypeHandled("refresh_token")
	return nil
}
Beispiel #3
0
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-6
func (c *RefreshTokenGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder) error {
	if requester.GetGrantType() != "refresh_token" {
		return nil
	}

	accessToken, accessSignature, err := c.AccessTokenStrategy.GenerateAccessToken(ctx, req, requester)
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateAccessTokenSession(accessSignature, requester); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	refreshToken, refreshSignature, err := c.RefreshTokenStrategy.GenerateRefreshToken(ctx, req, requester)
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateRefreshTokenSession(refreshSignature, requester); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	signature, err := c.RefreshTokenStrategy.ValidateRefreshToken(req.PostForm.Get("refresh_token"), ctx, req, requester)
	if err != nil {
		return errors.New(fosite.ErrInvalidRequest)
	}

	if err := c.Store.DeleteRefreshTokenSession(signature); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	responder.SetAccessToken(accessToken)
	responder.SetTokenType("bearer")
	responder.SetExtra("expires_in", strconv.Itoa(int(c.AccessTokenLifespan/time.Second)))
	responder.SetExtra("scope", strings.Join(requester.GetGrantedScopes(), " "))
	responder.SetExtra("refresh_token", refreshToken)
	return nil
}
Beispiel #4
0
// ValidateTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-6
func (c *RefreshTokenGrantHandler) ValidateTokenEndpointRequest(ctx context.Context, req *http.Request, request fosite.AccessRequester) error {
	// grant_type REQUIRED.
	// Value MUST be set to "client_credentials".
	if request.GetGrantType() != "refresh_token" {
		return nil
	}

	// The authorization server MUST ... validate the refresh token.
	signature, err := c.RefreshTokenStrategy.ValidateRefreshToken(req.Form.Get("refresh_token"), ctx, req, request)
	if err != nil {
		return errors.New(fosite.ErrInvalidRequest)
	}

	accessRequest, err := c.Store.GetRefreshTokenSession(signature, nil)
	if err == pkg.ErrNotFound {
		return errors.New(fosite.ErrInvalidRequest)
	} else if err != nil {
		return errors.New(fosite.ErrServerError)
	}

	// The authorization server MUST ... and ensure that the refresh token was issued to the authenticated client
	if accessRequest.GetClient().GetID() != request.GetClient().GetID() {
		return errors.New(fosite.ErrInvalidRequest)
	}

	request.SetGrantTypeHandled("refresh_token")
	return nil
}
Beispiel #5
0
// ValidateTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.4.2
func (c *ClientCredentialsGrantHandler) ValidateTokenEndpointRequest(_ context.Context, req *http.Request, request fosite.AccessRequester, session interface{}) error {
	// grant_type REQUIRED.
	// Value MUST be set to "client_credentials".
	if request.GetGrantType() != "client_credentials" {
		return nil
	}

	// The client MUST authenticate with the authorization server as described in Section 3.2.1.
	// This requirement is already fulfilled because fosite requries all token requests to be authenticated as described
	// in https://tools.ietf.org/html/rfc6749#section-3.2.1

	// There's nothing else to do. All other security considerations are for the client side.

	request.SetGrantTypeHandled("client_credentials")
	return nil
}
Beispiel #6
0
// ValidateTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.3.2
func (c *ResourceOwnerPasswordCredentialsGrantHandler) ValidateTokenEndpointRequest(_ context.Context, req *http.Request, request fosite.AccessRequester, session interface{}) error {
	// grant_type REQUIRED.
	// Value MUST be set to "password".
	if request.GetGrantType() != "password" {
		return nil
	}

	username := req.PostForm.Get("username")
	password := req.PostForm.Get("password")
	if username == "" || password == "" {
		return errors.New(fosite.ErrInvalidRequest)
	} else if err := c.Store.DoCredentialsAuthenticate(username, password); err == pkg.ErrNotFound {
		return errors.New(fosite.ErrInvalidRequest)
	} else if err != nil {
		return errors.New(fosite.ErrServerError)
	}

	request.SetGrantTypeHandled("password")
	return nil
}
Beispiel #7
0
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.4.3
func (c *ClientCredentialsGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder, session interface{}) error {
	if requester.GetGrantType() != "client_credentials" {
		return nil
	}

	access, err := c.Enigma.GenerateChallenge(requester.GetClient().GetHashedSecret())
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateAccessTokenSession(access.Signature, requester, &core.TokenSession{Extra: session}); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	responder.SetAccessToken(access.String())
	responder.SetTokenType("bearer")
	responder.SetExtra("expires_in", strconv.Itoa(int(c.AccessTokenLifespan/time.Second)))
	responder.SetExtra("scope", strings.Join(requester.GetGrantedScopes(), " "))

	// "A refresh token SHOULD NOT be included."
	// -> we won't issue one

	return nil
}
Beispiel #8
0
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.4.3
func (c *ClientCredentialsGrantHandler) HandleTokenEndpointRequest(ctx context.Context, r *http.Request, request fosite.AccessRequester, response fosite.AccessResponder) error {
	if request.GetGrantType() != "client_credentials" {
		return nil
	}

	token, signature, err := c.AccessTokenStrategy.GenerateAccessToken(ctx, r, request)
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateAccessTokenSession(signature, request); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	response.SetAccessToken(token)
	response.SetTokenType("bearer")
	response.SetExtra("expires_in", strconv.Itoa(int(c.AccessTokenLifespan/time.Second)))
	response.SetExtra("scope", strings.Join(request.GetGrantedScopes(), " "))

	// "A refresh token SHOULD NOT be included."
	// -> we won't issue one

	return nil
}
Beispiel #9
0
// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.3.3
func (c *ResourceOwnerPasswordCredentialsGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder, session interface{}) error {
	if requester.GetGrantType() != "password" {
		return nil
	}

	access, err := c.Enigma.GenerateChallenge(requester.GetClient().GetHashedSecret())
	if err != nil {
		return errors.New(fosite.ErrServerError)
	} else if err := c.Store.CreateAccessTokenSession(access.Signature, requester, &core.TokenSession{Extra: session}); err != nil {
		return errors.New(fosite.ErrServerError)
	}

	responder.SetAccessToken(access.String())
	responder.SetTokenType("bearer")
	responder.SetExtra("expires_in", strconv.Itoa(int(c.AccessTokenLifespan/time.Second)))
	responder.SetExtra("scope", strings.Join(requester.GetGrantedScopes(), " "))

	// As of https://tools.ietf.org/html/rfc6819#section-5.2.2.1 and
	// https://tools.ietf.org/html/rfc6819#section-4.4.3.3 we decided not to include refresh tokens
	// as part of the resource owner grant

	return nil
}