lib/fs: verify response code when reading configuration over HTTP (#4036)

Verifying status code helps to avoid misleading errors caused by attempt to parse unsuccessful response.

Related issue: #4034

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
This commit is contained in:
Zakhar Bessarab 2023-03-30 14:18:00 +03:00 committed by Aliaksandr Valialkin
parent 9e3818ca27
commit baa9f0e573
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2 changed files with 6 additions and 0 deletions

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@ -17,6 +17,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
* BUGFIX: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): properly convert [VictoriaMetrics historgram buckets](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) to Prometheus histogram buckets when VictoriaMetrics histogram contain zero buckets. Previously these buckets were ignored, and this could lead to missing Prometheus histogram buckets after the conversion. Thanks to @zklapow for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4021).
* BUGFIX: properly support comma-separated filters inside [retention filters](https://docs.victoriametrics.com/#retention-filters). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3915).
* BUGFIX: verify response code when fetching configuration files via HTTP. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4034).
## [v1.87.4](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.4)

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@ -439,6 +439,11 @@ func ReadFileOrHTTP(path string) ([]byte, error) {
if err != nil {
return nil, fmt.Errorf("cannot fetch %q: %w", path, err)
}
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected status code when fetching %q: %d, expecting %d", path, resp.StatusCode, http.StatusOK)
}
data, err := io.ReadAll(resp.Body)
_ = resp.Body.Close()
if err != nil {