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72738f0cb5This PR has two parts:
* Add locking to goth and gothic calls with a RWMutex
The goth and gothic calls are currently unlocked and thus are a cause of multiple potential races
* Reattempt OAuth2 registration on login if registration failed
If OAuth2 registration fails at startup we currently disable the login_source however an alternative approach could be to reattempt registration on login attempt.
Fix #16096
Signed-off-by: Andrew Thornton <art27@cantab.net>
48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package oauth2
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import (
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"net/http"
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"github.com/markbates/goth"
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"github.com/markbates/goth/gothic"
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)
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// Callout redirects request/response pair to authenticate against the provider
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func (source *Source) Callout(request *http.Request, response http.ResponseWriter) error {
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// not sure if goth is thread safe (?) when using multiple providers
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request.Header.Set(ProviderHeaderKey, source.loginSource.Name)
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// don't use the default gothic begin handler to prevent issues when some error occurs
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// normally the gothic library will write some custom stuff to the response instead of our own nice error page
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//gothic.BeginAuthHandler(response, request)
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gothRWMutex.RLock()
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defer gothRWMutex.RUnlock()
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url, err := gothic.GetAuthURL(response, request)
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if err == nil {
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http.Redirect(response, request, url, http.StatusTemporaryRedirect)
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}
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return err
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}
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// Callback handles OAuth callback, resolve to a goth user and send back to original url
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// this will trigger a new authentication request, but because we save it in the session we can use that
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func (source *Source) Callback(request *http.Request, response http.ResponseWriter) (goth.User, error) {
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// not sure if goth is thread safe (?) when using multiple providers
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request.Header.Set(ProviderHeaderKey, source.loginSource.Name)
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gothRWMutex.RLock()
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defer gothRWMutex.RUnlock()
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user, err := gothic.CompleteUserAuth(response, request)
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if err != nil {
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return user, err
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}
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return user, nil
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}
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