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https://gitee.com/gitea/gitea
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72738f0cb5
This 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>
89 lines
2.3 KiB
Go
89 lines
2.3 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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"sync"
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"code.gitea.io/gitea/models"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"github.com/google/uuid"
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"github.com/markbates/goth/gothic"
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)
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var gothRWMutex = sync.RWMutex{}
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// SessionTableName is the table name that OAuth2 will use to store things
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const SessionTableName = "oauth2_session"
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// UsersStoreKey is the key for the store
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const UsersStoreKey = "gitea-oauth2-sessions"
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// ProviderHeaderKey is the HTTP header key
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const ProviderHeaderKey = "gitea-oauth2-provider"
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// Init initializes the oauth source
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func Init() error {
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if err := InitSigningKey(); err != nil {
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return err
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}
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store, err := models.CreateStore(SessionTableName, UsersStoreKey)
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if err != nil {
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return err
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}
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// according to the Goth lib:
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// set the maxLength of the cookies stored on the disk to a larger number to prevent issues with:
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// securecookie: the value is too long
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// when using OpenID Connect , since this can contain a large amount of extra information in the id_token
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// Note, when using the FilesystemStore only the session.ID is written to a browser cookie, so this is explicit for the storage on disk
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store.MaxLength(setting.OAuth2.MaxTokenLength)
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// Lock our mutex
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gothRWMutex.Lock()
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gothic.Store = store
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gothic.SetState = func(req *http.Request) string {
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return uuid.New().String()
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}
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gothic.GetProviderName = func(req *http.Request) (string, error) {
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return req.Header.Get(ProviderHeaderKey), nil
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}
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// Unlock our mutex
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gothRWMutex.Unlock()
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return initOAuth2LoginSources()
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}
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// ResetOAuth2 clears existing OAuth2 providers and loads them from DB
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func ResetOAuth2() error {
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ClearProviders()
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return initOAuth2LoginSources()
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}
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// initOAuth2LoginSources is used to load and register all active OAuth2 providers
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func initOAuth2LoginSources() error {
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loginSources, _ := models.GetActiveOAuth2ProviderLoginSources()
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for _, source := range loginSources {
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oauth2Source, ok := source.Cfg.(*Source)
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if !ok {
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continue
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}
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err := oauth2Source.RegisterSource()
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if err != nil {
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log.Critical("Unable to register source: %s due to Error: %v.", source.Name, err)
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}
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}
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return nil
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}
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