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refactor auth interface to return error when verify failure (#22119)

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This PR changed the Auth interface signature from 
`Verify(http *http.Request, w http.ResponseWriter, store DataStore, sess
SessionStore) *user_model.User`
to 
`Verify(http *http.Request, w http.ResponseWriter, store DataStore, sess
SessionStore) (*user_model.User, error)`.

There is a new return argument `error` which means the verification
condition matched but verify process failed, we should stop the auth
process.

Before this PR, when return a `nil` user, we don't know the reason why
it returned `nil`. If the match condition is not satisfied or it
verified failure? For these two different results, we should have
different handler. If the match condition is not satisfied, we should
try next auth method and if there is no more auth method, it's an
anonymous user. If the condition matched but verify failed, the auth
process should be stop and return immediately.

This will fix #20563

Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
Co-authored-by: Jason Song <i@wolfogre.com>
This commit is contained in:
Lunny Xiao 2022-12-28 13:53:28 +08:00 • committed by GitHub
parent 7cc7db73b9
commit ca67c5a8a7
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 111 additions and 79 deletions
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22
services/auth/basic.go
View file

@ -40,20 +40,20 @@ func (b *Basic) Name() string {
// "Authorization" header of the request and returns the corresponding user object for that
// name/token on successful validation.
// Returns nil if header is empty or validation fails.
func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) *user_model.User {
func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore, sess SessionStore) (*user_model.User, error) {
// Basic authentication should only fire on API, Download or on Git or LFSPaths
if !middleware.IsAPIPath(req) && !isContainerPath(req) && !isAttachmentDownload(req) && !isGitRawReleaseOrLFSPath(req) {
return nil
return nil, nil
}
baHead := req.Header.Get("Authorization")
if len(baHead) == 0 {
return nil
return nil, nil
}
auths := strings.SplitN(baHead, " ", 2)
if len(auths) != 2 || (strings.ToLower(auths[0]) != "basic") {
return nil
return nil, nil
}
uname, passwd, _ := base.BasicAuthDecode(auths[1])
@ -77,11 +77,11 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
u, err := user_model.GetUserByID(req.Context(), uid)
if err != nil {
log.Error("GetUserByID: %v", err)
return nil
return nil, err
}
store.GetData()["IsApiToken"] = true
return u
return u, nil
}
token, err := auth_model.GetAccessTokenBySHA(authToken)
@ -90,7 +90,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
u, err := user_model.GetUserByID(req.Context(), token.UID)
if err != nil {
log.Error("GetUserByID: %v", err)
return nil
return nil, err
}
token.UpdatedUnix = timeutil.TimeStampNow()
@ -99,13 +99,13 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
}
store.GetData()["IsApiToken"] = true
return u
return u, nil
} else if !auth_model.IsErrAccessTokenNotExist(err) && !auth_model.IsErrAccessTokenEmpty(err) {
log.Error("GetAccessTokenBySha: %v", err)
}
if !setting.Service.EnableBasicAuth {
return nil
return nil, nil
}
log.Trace("Basic Authorization: Attempting SignIn for %s", uname)
@ -114,7 +114,7 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
if !user_model.IsErrUserNotExist(err) {
log.Error("UserSignIn: %v", err)
}
return nil
return nil, err
}
if skipper, ok := source.Cfg.(LocalTwoFASkipper); ok && skipper.IsSkipLocalTwoFA() {
@ -123,5 +123,5 @@ func (b *Basic) Verify(req *http.Request, w http.ResponseWriter, store DataStore
log.Trace("Basic Authorization: Logged in user %-v", u)
return u
return u, nil
}