forked from vikunja/vikunja
130 lines
4.4 KiB
Go
130 lines
4.4 KiB
Go
/*
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* Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
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* @copyright 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
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* @license Apache-2.0
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*
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*/
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package oauth2
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import (
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"context"
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"net/url"
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"strings"
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"time"
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"github.com/pkg/errors"
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"github.com/ory/fosite"
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)
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// AuthorizeExplicitGrantTypeHandler is a response handler for the Authorize Code grant using the explicit grant type
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// as defined in https://tools.ietf.org/html/rfc6749#section-4.1
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type AuthorizeExplicitGrantHandler struct {
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AccessTokenStrategy AccessTokenStrategy
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RefreshTokenStrategy RefreshTokenStrategy
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AuthorizeCodeStrategy AuthorizeCodeStrategy
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CoreStorage CoreStorage
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//TokenRevocationStorage TokenRevocationStorage
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// AuthCodeLifespan defines the lifetime of an authorize code.
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AuthCodeLifespan time.Duration
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// AccessTokenLifespan defines the lifetime of an access token.
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AccessTokenLifespan time.Duration
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// RefreshTokenLifespan defines the lifetime of a refresh token. Leave to 0 for unlimited lifetime.
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RefreshTokenLifespan time.Duration
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ScopeStrategy fosite.ScopeStrategy
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AudienceMatchingStrategy fosite.AudienceMatchingStrategy
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// SanitationWhiteList is a whitelist of form values that are required by the token endpoint. These values
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// are safe for storage in a database (cleartext).
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SanitationWhiteList []string
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TokenRevocationStorage TokenRevocationStorage
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IsRedirectURISecure func(*url.URL) bool
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RefreshTokenScopes []string
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}
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func (c *AuthorizeExplicitGrantHandler) secureChecker() func(*url.URL) bool {
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if c.IsRedirectURISecure == nil {
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c.IsRedirectURISecure = fosite.IsRedirectURISecure
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}
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return c.IsRedirectURISecure
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}
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func (c *AuthorizeExplicitGrantHandler) HandleAuthorizeEndpointRequest(ctx context.Context, ar fosite.AuthorizeRequester, resp fosite.AuthorizeResponder) error {
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// This let's us define multiple response types, for example open id connect's id_token
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if !ar.GetResponseTypes().ExactOne("code") {
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return nil
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}
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// Disabled because this is already handled at the authorize_request_handler
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// if !ar.GetClient().GetResponseTypes().Has("code") {
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// return errors.WithStack(fosite.ErrInvalidGrant)
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// }
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if !c.secureChecker()(ar.GetRedirectURI()) {
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return errors.WithStack(fosite.ErrInvalidRequest.WithHint("Redirect URL is using an insecure protocol, http is only allowed for hosts with suffix `localhost`, for example: http://myapp.localhost/."))
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}
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client := ar.GetClient()
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for _, scope := range ar.GetRequestedScopes() {
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if !c.ScopeStrategy(client.GetScopes(), scope) {
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return errors.WithStack(fosite.ErrInvalidScope.WithHintf("The OAuth 2.0 Client is not allowed to request scope \"%s\".", scope))
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}
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}
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if err := c.AudienceMatchingStrategy(client.GetAudience(), ar.GetRequestedAudience()); err != nil {
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return err
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}
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return c.IssueAuthorizeCode(ctx, ar, resp)
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}
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func (c *AuthorizeExplicitGrantHandler) IssueAuthorizeCode(ctx context.Context, ar fosite.AuthorizeRequester, resp fosite.AuthorizeResponder) error {
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code, signature, err := c.AuthorizeCodeStrategy.GenerateAuthorizeCode(ctx, ar)
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if err != nil {
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return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
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}
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ar.GetSession().SetExpiresAt(fosite.AuthorizeCode, time.Now().UTC().Add(c.AuthCodeLifespan))
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if err := c.CoreStorage.CreateAuthorizeCodeSession(ctx, signature, ar.Sanitize(c.GetSanitationWhiteList())); err != nil {
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return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
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}
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resp.AddQuery("code", code)
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resp.AddQuery("state", ar.GetState())
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resp.AddQuery("scope", strings.Join(ar.GetGrantedScopes(), " "))
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ar.SetResponseTypeHandled("code")
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return nil
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}
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func (c *AuthorizeExplicitGrantHandler) GetSanitationWhiteList() []string {
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if len(c.SanitationWhiteList) > 0 {
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return c.SanitationWhiteList
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}
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return []string{
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"code",
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"redirect_uri",
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}
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}
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