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Revert "net/http/httputil: allow ReverseProxy to call ModifyResponse on failed requests"

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This reverts commit https://golang.org/cl/54030

Reason for revert: to not paint ourselves into a corner.
See https://github.com/golang/go/issues/23009

Fixes #23009
Updates #21255

Change-Id: I68caab078839b9d2bf645a7bbed8405a5a30cd22
Reviewed-on: https://go-review.googlesource.com/86435
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Brad Fitzpatrick 2018-01-05 21:35:51 +00:00
parent 91f99852f6
commit 24df1d06bc
2 changed files with 8 additions and 42 deletions
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29
src/net/http/httputil/reverseproxy_test.go
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@ -631,35 +631,6 @@ func TestReverseProxyModifyResponse(t *testing.T) {
}
}
// Issue 21255. Test ModifyResponse when an error from transport.RoundTrip
// occurs, and that the proxy returns StatusOK.
func TestReverseProxyModifyResponse_OnError(t *testing.T) {
// Always returns an error
errBackend := httptest.NewUnstartedServer(nil)
errBackend.Config.ErrorLog = log.New(ioutil.Discard, "", 0) // quiet for tests
defer errBackend.Close()
rpURL, _ := url.Parse(errBackend.URL)
rproxy := NewSingleHostReverseProxy(rpURL)
rproxy.ModifyResponse = func(resp *http.Response) error {
// Will be set for a non-nil error
resp.StatusCode = http.StatusOK
return nil
}
frontend := httptest.NewServer(rproxy)
defer frontend.Close()
resp, err := http.Get(frontend.URL)
if err != nil {
t.Fatalf("failed to reach proxy: %v", err)
}
if resp.StatusCode != http.StatusOK {
t.Errorf("err != nil: got res.StatusCode %d; expected %d", resp.StatusCode, http.StatusOK)
}
resp.Body.Close()
}
// Issue 16659: log errors from short read
func TestReverseProxy_CopyBuffer(t *testing.T) {
backendServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {