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@aeneasr @arekkas @v-antech @nikita-v @michaelboke @dmcinnes @aaslamin
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/*
* Copyright © 2015-2018 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.
*
* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
* @copyright 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
* @license Apache-2.0
*
*/
package oauth2
import (
"context"
"time"
"github.com/ory/fosite/storage"
"github.com/pkg/errors"
"github.com/ory/fosite"
)
// HandleTokenEndpointRequest implements
// * https://tools.ietf.org/html/rfc6749#section-4.1.3 (everything)
func (c *AuthorizeExplicitGrantHandler) HandleTokenEndpointRequest(ctx context.Context, request fosite.AccessRequester) error {
// grant_type REQUIRED.
// Value MUST be set to "authorization_code".
if !request.GetGrantTypes().Exact("authorization_code") {
return errors.WithStack(errors.WithStack(fosite.ErrUnknownRequest))
}
if !request.GetClient().GetGrantTypes().Has("authorization_code") {
return errors.WithStack(fosite.ErrInvalidGrant.WithHint("The OAuth 2.0 Client is not allowed to use authorization grant \"authorization_code\"."))
}
code := request.GetRequestForm().Get("code")
signature := c.AuthorizeCodeStrategy.AuthorizeCodeSignature(code)
authorizeRequest, err := c.CoreStorage.GetAuthorizeCodeSession(ctx, signature, request.GetSession())
if errors.Cause(err) == fosite.ErrInvalidatedAuthorizeCode {
if authorizeRequest == nil {
return fosite.ErrServerError.
WithHint("Misconfigured code lead to an error that prohibited the OAuth 2.0 Framework from processing this request.").
WithDebug("GetAuthorizeCodeSession must return a value for \"fosite.Requester\" when returning \"ErrInvalidatedAuthorizeCode\".")
}
//If an authorize code is used twice, we revoke all refresh and access tokens associated with this request.
reqID := authorizeRequest.GetID()
hint := "The authorization code has already been used."
debug := ""
if revErr := c.TokenRevocationStorage.RevokeAccessToken(ctx, reqID); revErr != nil {
hint += " Additionally, an error occurred during processing the access token revocation."
debug += "Revokation of access_token lead to error " + revErr.Error() + "."
}
if revErr := c.TokenRevocationStorage.RevokeRefreshToken(ctx, reqID); revErr != nil {
hint += " Additionally, an error occurred during processing the refresh token revocation."
debug += "Revokation of refresh_token lead to error " + revErr.Error() + "."
}
return errors.WithStack(fosite.ErrInvalidGrant.WithHint(hint).WithDebug(debug))
} else if err != nil && errors.Cause(err).Error() == fosite.ErrNotFound.Error() {
return errors.WithStack(fosite.ErrInvalidGrant.WithDebug(err.Error()))
} else if err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
// The authorization server MUST verify that the authorization code is valid
// This needs to happen after store retrieval for the session to be hydrated properly
if err := c.AuthorizeCodeStrategy.ValidateAuthorizeCode(ctx, request, code); err != nil {
return errors.WithStack(fosite.ErrInvalidGrant.WithDebug(err.Error()))
}
// Override scopes
request.SetRequestedScopes(authorizeRequest.GetRequestedScopes())
// Override audiences
request.SetRequestedAudience(authorizeRequest.GetRequestedAudience())
// 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.WithStack(fosite.ErrInvalidRequest.WithHint("The OAuth 2.0 Client ID from this request does not match the one from the authorize request."))
}
// 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 != request.GetRequestForm().Get("redirect_uri") {
return errors.WithStack(fosite.ErrInvalidRequest.WithHint("The \"redirect_uri\" from this request does not match the one from the authorize request."))
}
// 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.SetID(authorizeRequest.GetID())
request.GetSession().SetExpiresAt(fosite.AccessToken, time.Now().UTC().Add(c.AccessTokenLifespan).Round(time.Second))
if c.RefreshTokenLifespan > -1 {
request.GetSession().SetExpiresAt(fosite.RefreshToken, time.Now().UTC().Add(c.RefreshTokenLifespan).Round(time.Second))
}
return nil
}
func (c *AuthorizeExplicitGrantHandler) PopulateTokenEndpointResponse(ctx context.Context, requester fosite.AccessRequester, responder fosite.AccessResponder) error {
// grant_type REQUIRED.
// Value MUST be set to "authorization_code", as this is the explicit grant handler.
if !requester.GetGrantTypes().Exact("authorization_code") {
return errors.WithStack(fosite.ErrUnknownRequest)
}
code := requester.GetRequestForm().Get("code")
signature := c.AuthorizeCodeStrategy.AuthorizeCodeSignature(code)
authorizeRequest, err := c.CoreStorage.GetAuthorizeCodeSession(ctx, signature, requester.GetSession())
if err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
} else if err := c.AuthorizeCodeStrategy.ValidateAuthorizeCode(ctx, requester, code); err != nil {
// This needs to happen after store retrieval for the session to be hydrated properly
return errors.WithStack(fosite.ErrInvalidRequest.WithDebug(err.Error()))
}
for _, scope := range authorizeRequest.GetGrantedScopes() {
requester.GrantScope(scope)
}
for _, audience := range authorizeRequest.GetGrantedAudience() {
requester.GrantAudience(audience)
}
access, accessSignature, err := c.AccessTokenStrategy.GenerateAccessToken(ctx, requester)
if err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
var refresh, refreshSignature string
if len(c.RefreshTokenScopes) == 0 || authorizeRequest.GetGrantedScopes().HasOneOf(c.RefreshTokenScopes...) {
refresh, refreshSignature, err = c.RefreshTokenStrategy.GenerateRefreshToken(ctx, requester)
if err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
}
ctx, err = storage.MaybeBeginTx(ctx, c.CoreStorage)
if err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
if err := c.CoreStorage.InvalidateAuthorizeCodeSession(ctx, signature); err != nil {
if rollBackTxnErr := storage.MaybeRollbackTx(ctx, c.CoreStorage); rollBackTxnErr != nil {
err = rollBackTxnErr
}
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
} else if err := c.CoreStorage.CreateAccessTokenSession(ctx, accessSignature, requester.Sanitize([]string{})); err != nil {
if rollBackTxnErr := storage.MaybeRollbackTx(ctx, c.CoreStorage); rollBackTxnErr != nil {
err = rollBackTxnErr
}
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
} else if refreshSignature != "" {
if err := c.CoreStorage.CreateRefreshTokenSession(ctx, refreshSignature, requester.Sanitize([]string{})); err != nil {
if rollBackTxnErr := storage.MaybeRollbackTx(ctx, c.CoreStorage); rollBackTxnErr != nil {
err = rollBackTxnErr
}
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
}
responder.SetAccessToken(access)
responder.SetTokenType("bearer")
responder.SetExpiresIn(getExpiresIn(requester, fosite.AccessToken, c.AccessTokenLifespan, time.Now().UTC()))
responder.SetScopes(requester.GetGrantedScopes())
if refresh != "" {
responder.SetExtra("refresh_token", refresh)
}
if err := storage.MaybeCommitTx(ctx, c.CoreStorage); err != nil {
return errors.WithStack(fosite.ErrServerError.WithDebug(err.Error()))
}
return nil
}
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