// WithOdataErrorUnlessStatusCode returns a RespondDecorator that emits an
// azure.RequestError by reading the response body unless the response HTTP status code
// is among the set passed.
//
// If there is a chance service may return responses other than the Azure error
// format and the response cannot be parsed into an error, a decoding error will
// be returned containing the response body. In any case, the Responder will
// return an error if the status code is not satisfied.
//
// If this Responder returns an error, the response body will be replaced with
// an in-memory reader, which needs no further closing.
//
// NOTE(axw) this function is based on go-autorest/autorest/azure.WithErrorUnlessStatusCode.
// The only difference is that we extract "odata.error", instead of "error",
// from the response body; and we do not extract the message, which is in a
// different format for odata.error, and irrelevant to us.
func WithOdataErrorUnlessStatusCode(codes ...int) autorest.RespondDecorator {
return func(r autorest.Responder) autorest.Responder {
return autorest.ResponderFunc(func(resp *http.Response) error {
err := r.Respond(resp)
if err == nil && !autorest.ResponseHasStatusCode(resp, codes...) {
var oe odataRequestError
defer resp.Body.Close()
// Copy and replace the Body in case it does not contain an error object.
// This will leave the Body available to the caller.
b, decodeErr := autorest.CopyAndDecode(autorest.EncodedAsJSON, resp.Body, &oe)
resp.Body = ioutil.NopCloser(&b)
if decodeErr != nil {
return fmt.Errorf("ad: error response cannot be parsed: %q error: %v", b.String(), decodeErr)
} else if oe.ServiceError == nil {
oe.ServiceError = &odataServiceError{Code: "Unknown"}
}
e := azure.RequestError{
ServiceError: &azure.ServiceError{Code: oe.ServiceError.Code},
RequestID: azure.ExtractRequestID(resp),
}
if e.StatusCode == nil {
e.StatusCode = resp.StatusCode
}
err = &e
}
return err
})
}
}
func byInspecting() autorest.RespondDecorator {
return func(r autorest.Responder) autorest.Responder {
return autorest.ResponderFunc(func(resp *http.Response) error {
log.Debug("Azure response", logutil.Fields{
"status": resp.Status,
"method": resp.Request.Method,
"request": resp.Request.URL.String(),
"x-ms-request-id": azure.ExtractRequestID(resp),
})
return r.Respond(resp)
})
}
}
func byInspecting(maxlen int64) autorest.RespondDecorator {
return func(r autorest.Responder) autorest.Responder {
return autorest.ResponderFunc(func(resp *http.Response) error {
body, bodyString := handleBody(resp.Body, maxlen)
resp.Body = body
log.Print("Azure response", logutil.Fields{
"status": resp.Status,
"method": resp.Request.Method,
"request": resp.Request.URL.String(),
"x-ms-request-id": azure.ExtractRequestID(resp),
"body": bodyString,
})
return r.Respond(resp)
})
}
}