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1a5f3735cf
* cleanup code for URL type * fix makefile for trace mode * refactor, merge Entry, RawEntry and Route into one. * Implement fileserver. * refactor: rename HTTPRoute to ReverseProxyRoute to avoid confusion * refactor: move metrics logger to middleware package - fix prometheus metrics for load balanced routes - route will now fail when health monitor fail to start * fix extra output of ls-* commands by defer initializaing stuff, speed up start time * add test for path traversal attack, small fix on FileServer.Start method * rename rule.on.bypass to pass * refactor and fixed map-to-map deserialization * updated route loading logic * schemas: add "add_prefix" option to modify_request middleware * updated route JSONMarshalling --------- Co-authored-by: yusing <yusing@6uo.me>
47 lines
1 KiB
Go
47 lines
1 KiB
Go
package metricslogger
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import (
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"net/http"
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"time"
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"github.com/yusing/go-proxy/internal/metrics"
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)
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type httpMetricLogger struct {
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http.ResponseWriter
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timestamp time.Time
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labels *metrics.HTTPRouteMetricLabels
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}
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// WriteHeader implements http.ResponseWriter.
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func (l *httpMetricLogger) WriteHeader(status int) {
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l.ResponseWriter.WriteHeader(status)
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duration := time.Since(l.timestamp)
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go func() {
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m := metrics.GetRouteMetrics()
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m.HTTPReqTotal.Inc()
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m.HTTPReqElapsed.With(l.labels).Set(float64(duration.Milliseconds()))
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// ignore 1xx
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switch {
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case status >= 500:
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m.HTTP5xx.With(l.labels).Inc()
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case status >= 400:
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m.HTTP4xx.With(l.labels).Inc()
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case status >= 200:
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m.HTTP2xx3xx.With(l.labels).Inc()
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}
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}()
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}
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func (l *httpMetricLogger) Unwrap() http.ResponseWriter {
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return l.ResponseWriter
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}
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func newHTTPMetricLogger(w http.ResponseWriter, labels *metrics.HTTPRouteMetricLabels) *httpMetricLogger {
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return &httpMetricLogger{
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ResponseWriter: w,
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timestamp: time.Now(),
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labels: labels,
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}
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}
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