Golang AccessRequester.GetSession方法代碼示例

// IntrospectTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-4.4.2
func (c *ClientCredentialsGrantHandler) HandleTokenEndpointRequest(_ context.Context, r *http.Request, request fosite.AccessRequester) error {
	// grant_type REQUIRED.
	// Value MUST be set to "client_credentials".
	if !request.GetGrantTypes().Exact("client_credentials") {
		return errors.Wrap(fosite.ErrUnknownRequest, "")
	}

	client := request.GetClient()
	for _, scope := range request.GetRequestedScopes() {
		if !c.ScopeStrategy(client.GetScopes(), scope) {
			return errors.Wrap(fosite.ErrInvalidScope, fmt.Sprintf("The client is not allowed to request scope %s", scope))
		}
	}

	// 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
	if client.IsPublic() {
		return errors.Wrap(fosite.ErrInvalidGrant, "The client is public and thus not allowed to use grant type client_credentials")
	}
	// if the client is not public, he has already been authenticated by the access request handler.

	request.GetSession().SetExpiresAt(fosite.AccessToken, time.Now().Add(c.AccessTokenLifespan))
	return nil
}

func (w *LocalWarden) actionAllowed(ctx context.Context, a *ladon.Request, scopes []string, oauthRequest fosite.AccessRequester, session *oauth2.Session) (*Context, error) {
	session = oauthRequest.GetSession().(*oauth2.Session)
	if a.Subject != "" && a.Subject != session.Subject {
		return nil, errors.New("Subject mismatch " + a.Subject + " - " + session.Subject)
	}

	if !matchScopes(oauthRequest.GetGrantedScopes(), scopes, session, oauthRequest.GetClient()) {
		return nil, errors.New(herodot.ErrForbidden)
	}

	a.Subject = session.Subject
	if err := w.Warden.IsAllowed(a); err != nil {
		return nil, err
	}

	logrus.WithFields(logrus.Fields{
		"scopes":   scopes,
		"subject":  a.Subject,
		"audience": oauthRequest.GetClient().GetID(),
		"request":  a,
	}).Infof("Access granted")

	return &Context{
		Subject:       session.Subject,
		GrantedScopes: oauthRequest.GetGrantedScopes(),
		Issuer:        w.Issuer,
		Audience:      oauthRequest.GetClient().GetID(),
		IssuedAt:      oauthRequest.GetRequestedAt(),
	}, nil
}

// HandleTokenEndpointRequest implements
// * https://tools.ietf.org/html/rfc6749#section-4.1.3 (everything)
func (c *AuthorizeExplicitGrantHandler) HandleTokenEndpointRequest(ctx context.Context, r *http.Request, request fosite.AccessRequester) error {
	// grant_type REQUIRED.
	// Value MUST be set to "authorization_code".
	if !request.GetGrantTypes().Exact("authorization_code") {
		return errors.Wrap(fosite.ErrUnknownRequest, "")
	}

	if !request.GetClient().GetGrantTypes().Has("authorization_code") {
		return errors.Wrap(fosite.ErrInvalidGrant, "The client is not allowed to use grant type authorization_code")
	}

	code := r.PostForm.Get("code")
	signature := c.AuthorizeCodeStrategy.AuthorizeCodeSignature(code)
	authorizeRequest, err := c.AuthorizeCodeGrantStorage.GetAuthorizeCodeSession(ctx, signature, request.GetSession())
	if errors.Cause(err) == fosite.ErrNotFound {
		return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
	} else if err != nil {
		return errors.Wrap(fosite.ErrServerError, err.Error())
	}

	// The authorization server MUST verify that the authorization code is valid
	if err := c.AuthorizeCodeStrategy.ValidateAuthorizeCode(ctx, request, code); err != nil {
		return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
	}

	// Override scopes
	request.SetRequestedScopes(authorizeRequest.GetRequestedScopes())

	// The authorization server MUST ensure that the authorization code was issued to the authenticated
	// confidential client, or if the client is public, ensure that the
	// code was issued to "client_id" in the request,
	if authorizeRequest.GetClient().GetID() != request.GetClient().GetID() {
		return errors.Wrap(fosite.ErrInvalidRequest, "Client ID mismatch")
	}

	// ensure that the "redirect_uri" parameter is present if the
	// "redirect_uri" parameter was included in the initial authorization
	// request as described in Section 4.1.1, and if included ensure that
	// their values are identical.
	forcedRedirectURI := authorizeRequest.GetRequestForm().Get("redirect_uri")
	if forcedRedirectURI != "" && forcedRedirectURI != r.PostForm.Get("redirect_uri") {
		return errors.Wrap(fosite.ErrInvalidRequest, "Redirect URI mismatch")
	}

	// Checking of POST client_id skipped, because:
	// If the client type is confidential or the client was issued client
	// credentials (or assigned other authentication requirements), the
	// client MUST authenticate with the authorization server as described
	// in Section 3.2.1.
	request.SetSession(authorizeRequest.GetSession())
	request.GetSession().SetExpiresAt(fosite.AccessToken, time.Now().Add(c.AccessTokenLifespan))
	return nil
}

func (c *CoreValidator) introspectAuthorizeCode(ctx context.Context, token string, accessRequest fosite.AccessRequester) error {
	sig := c.CoreStrategy.AuthorizeCodeSignature(token)
	if or, err := c.CoreStorage.GetAuthorizeCodeSession(ctx, sig, accessRequest.GetSession()); err != nil {
		return errors.Wrap(err, fosite.ErrRequestUnauthorized.Error())
	} else if err := c.CoreStrategy.ValidateAuthorizeCode(ctx, or, token); err != nil {
		return err
	} else {
		accessRequest.Merge(or)
	}

	return nil
}

// HandleTokenEndpointRequest implements https://tools.ietf.org/html/rfc6749#section-6
func (c *RefreshTokenGrantHandler) HandleTokenEndpointRequest(ctx context.Context, req *http.Request, request fosite.AccessRequester) error {
	// grant_type REQUIRED.
	// Value MUST be set to "refresh_token".
	if !request.GetGrantTypes().Exact("refresh_token") {
		return errors.Wrap(fosite.ErrUnknownRequest, "")
	}

	if !request.GetClient().GetGrantTypes().Has("refresh_token") {
		return errors.Wrap(fosite.ErrInvalidGrant, "The client is not allowed to use grant type refresh_token")
	}

	refresh := req.PostForm.Get("refresh_token")
	signature := c.RefreshTokenStrategy.RefreshTokenSignature(refresh)
	originalRequest, err := c.RefreshTokenGrantStorage.GetRefreshTokenSession(ctx, signature, request.GetSession())
	if errors.Cause(err) == fosite.ErrNotFound {
		return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
	} else if err != nil {
		return errors.Wrap(fosite.ErrServerError, err.Error())
	}

	if !originalRequest.GetGrantedScopes().Has("offline") {
		return errors.Wrap(fosite.ErrScopeNotGranted, "The client is not allowed to use grant type refresh_token")

	}

	// The authorization server MUST ... validate the refresh token.
	if err := c.RefreshTokenStrategy.ValidateRefreshToken(ctx, request, refresh); err != nil {
		return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
	}

	// The authorization server MUST ... and ensure that the refresh token was issued to the authenticated client
	if originalRequest.GetClient().GetID() != request.GetClient().GetID() {
		return errors.Wrap(fosite.ErrInvalidRequest, "Client ID mismatch")
	}

	request.SetSession(originalRequest.GetSession())
	request.SetRequestedScopes(originalRequest.GetRequestedScopes())
	for _, scope := range originalRequest.GetGrantedScopes() {
		request.GrantScope(scope)
	}

	request.GetSession().SetExpiresAt(fosite.AccessToken, time.Now().Add(c.AccessTokenLifespan))
	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
	}

	for _, scope := range scopes {
		if scope == "" {
			continue
		}

		if !c.ScopeStrategy(or.GetGrantedScopes(), scope) {
			return errors.Wrap(fosite.ErrInvalidScope, "")
		}
	}

	accessRequest.Merge(or)
	return nil
}

func (c *AuthorizeExplicitGrantHandler) PopulateTokenEndpointResponse(ctx context.Context, req *http.Request, requester fosite.AccessRequester, responder fosite.AccessResponder) error {
	// grant_type REQUIRED.
	// Value MUST be set to "authorization_code".
	if !requester.GetGrantTypes().Exact("authorization_code") {
		return errors.Wrap(fosite.ErrUnknownRequest, "")
	}

	code := req.PostForm.Get("code")
	signature := c.AuthorizeCodeStrategy.AuthorizeCodeSignature(code)
	authorizeRequest, err := c.AuthorizeCodeGrantStorage.GetAuthorizeCodeSession(ctx, signature, requester.GetSession())
	if err != nil {
		return errors.Wrap(fosite.ErrServerError, err.Error())
	} else if err := c.AuthorizeCodeStrategy.ValidateAuthorizeCode(ctx, requester, code); err != nil {
		return errors.Wrap(fosite.ErrInvalidRequest, err.Error())
	}

	access, accessSignature, err := c.AccessTokenStrategy.GenerateAccessToken(ctx, requester)
	if err != nil {
		return errors.Wrap(fosite.ErrServerError, err.Error())
	}

	for _, scope := range authorizeRequest.GetGrantedScopes() {
		requester.GrantScope(scope)
	}

	var refresh, refreshSignature string
	if authorizeRequest.GetGrantedScopes().Has("offline") {
		refresh, refreshSignature, err = c.RefreshTokenStrategy.GenerateRefreshToken(ctx, requester)
		if err != nil {
			return errors.Wrap(fosite.ErrServerError, err.Error())
		}
	}

	if err := c.AuthorizeCodeGrantStorage.PersistAuthorizeCodeGrantSession(ctx, signature, accessSignature, refreshSignature, requester); err != nil {
		return errors.Wrap(fosite.ErrServerError, err.Error())
	}

	responder.SetAccessToken(access)
	responder.SetTokenType("bearer")
	responder.SetExpiresIn(getExpiresIn(requester, fosite.AccessToken, c.AccessTokenLifespan, time.Now()))
	responder.SetScopes(requester.GetGrantedScopes())
	if refresh != "" {
		responder.SetExtra("refresh_token", refresh)
	}

	return nil
}