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CalAnonSync
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Fixed possible race condition

This commit is contained in:
Andreas Schneider 2018-04-03 11:55:45 +02:00
parent 0c1c63e20e
commit 69aa8d81f6
1 changed files with 23 additions and 25 deletions
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10
src/calanonsync/ews.go
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@ -70,12 +70,9 @@ func (er EWSRoundTripper) RoundTrip(r *http.Request) (*http.Response, error) {
r.SetBasicAuth(er.username, er.password)
}
resp, err := er.delegate.RoundTrip(r)
if err == nil && resp.StatusCode == http.StatusUnauthorized {
er.initMutex.Lock()
defer er.initMutex.Unlock()
if er.authType == authTypeUnknown {
resp, err := er.delegate.RoundTrip(r)
if err == nil && resp.StatusCode == http.StatusUnauthorized && er.authType == authTypeUnknown {
// This is a good time to find out what the server prefers.
authHeaders := resp.Header["Www-Authenticate"]
if authHeaders != nil {
@ -99,11 +96,12 @@ func (er EWSRoundTripper) RoundTrip(r *http.Request) (*http.Response, error) {
Password: er.password,
}
}
er.initMutex.Unlock()
return er.RoundTrip(r)
}
}
}
er.initMutex.Unlock()
return resp, err
}