Return access_denied error when an OAuth2 request is denied (#30974)

According to [RFC
6749](https://datatracker.ietf.org/doc/html/rfc6749#section-4.1.2.1),
when the resource owner or authorization server denied an request, an
`access_denied` error should be returned. But currently in this case
Gitea does not return any error.

For example, if the user clicks "Cancel" here, an `access_denied` error
should be returned.

<img width="360px"
src="https://github.com/go-gitea/gitea/assets/15528715/be31c09b-4c0a-4701-b7a4-f54b8fe3a6c5"
/>

(cherry picked from commit f1d9f18d96050d89a4085c961f572f07b1e653d1)
(cherry picked from commit 886a675f62)
This commit is contained in:
Zettat123 2024-05-20 15:17:00 +08:00 committed by Earl Warren
parent 40bf161ff0
commit d841e95191
No known key found for this signature in database
GPG key ID: 0579CB2928A78A00
3 changed files with 13 additions and 2 deletions

View file

@ -539,6 +539,16 @@ func GrantApplicationOAuth(ctx *context.Context) {
ctx.Error(http.StatusBadRequest)
return
}
if !form.Granted {
handleAuthorizeError(ctx, AuthorizeError{
State: form.State,
ErrorDescription: "the request is denied",
ErrorCode: ErrorCodeAccessDenied,
}, form.RedirectURI)
return
}
app, err := auth.GetOAuth2ApplicationByClientID(ctx, form.ClientID)
if err != nil {
ctx.ServerError("GetOAuth2ApplicationByClientID", err)

View file

@ -162,6 +162,7 @@ func (f *AuthorizationForm) Validate(req *http.Request, errs binding.Errors) bin
// GrantApplicationForm form for authorizing oauth2 clients
type GrantApplicationForm struct {
ClientID string `binding:"Required"`
Granted bool
RedirectURI string
State string
Scope string

View file

@ -23,8 +23,8 @@
<input type="hidden" name="scope" value="{{.Scope}}">
<input type="hidden" name="nonce" value="{{.Nonce}}">
<input type="hidden" name="redirect_uri" value="{{.RedirectURI}}">
<button type="submit" id="authorize-app" value="{{ctx.Locale.Tr "auth.authorize_application"}}" class="ui red inline button">{{ctx.Locale.Tr "auth.authorize_application"}}</button>
<a href="{{.RedirectURI}}" class="ui basic primary inline button">Cancel</a>
<button type="submit" id="authorize-app" name="granted" value="true" class="ui red inline button">{{ctx.Locale.Tr "auth.authorize_application"}}</button>
<button type="submit" name="granted" value="false" class="ui basic primary inline button">{{ctx.Locale.Tr "cancel"}}</button>
</form>
</div>
</div>