cloudflared-mirror/proxy/logger.go

82 lines
2.4 KiB
Go

package proxy
import (
"net/http"
"strconv"
"github.com/rs/zerolog"
"github.com/cloudflare/cloudflared/connection"
"github.com/cloudflare/cloudflared/ingress"
"github.com/cloudflare/cloudflared/management"
)
const (
logFieldCFRay = "cfRay"
logFieldLBProbe = "lbProbe"
logFieldRule = "ingressRule"
logFieldOriginService = "originService"
logFieldConnIndex = "connIndex"
logFieldDestAddr = "destAddr"
)
var (
LogFieldFlowID = "flowID"
)
// newHTTPLogger creates a child zerolog.Logger from the provided with added context from the HTTP request, ingress
// services, and connection index.
func newHTTPLogger(logger *zerolog.Logger, connIndex uint8, req *http.Request, rule int, serviceName string) zerolog.Logger {
ctx := logger.With().
Int(management.EventTypeKey, int(management.HTTP)).
Uint8(logFieldConnIndex, connIndex)
cfRay := connection.FindCfRayHeader(req)
lbProbe := connection.IsLBProbeRequest(req)
if cfRay != "" {
ctx.Str(logFieldCFRay, cfRay)
}
if lbProbe {
ctx.Bool(logFieldLBProbe, lbProbe)
}
return ctx.
Str(logFieldOriginService, serviceName).
Interface(logFieldRule, rule).
Logger()
}
// newTCPLogger creates a child zerolog.Logger from the provided with added context from the TCPRequest.
func newTCPLogger(logger *zerolog.Logger, req *connection.TCPRequest) zerolog.Logger {
return logger.With().
Int(management.EventTypeKey, int(management.TCP)).
Uint8(logFieldConnIndex, req.ConnIndex).
Str(logFieldOriginService, ingress.ServiceWarpRouting).
Str(LogFieldFlowID, req.FlowID).
Str(logFieldDestAddr, req.Dest).
Uint8(logFieldConnIndex, req.ConnIndex).
Logger()
}
// logHTTPRequest logs a Debug message with the corresponding HTTP request details from the eyeball.
func logHTTPRequest(logger *zerolog.Logger, r *http.Request) {
logger.Debug().
Str("host", r.Host).
Str("path", r.URL.Path).
Interface("headers", r.Header).
Int64("content-length", r.ContentLength).
Msgf("%s %s %s", r.Method, r.URL, r.Proto)
}
// logOriginHTTPResponse logs a Debug message of the origin response.
func logOriginHTTPResponse(logger *zerolog.Logger, resp *http.Response) {
responseByCode.WithLabelValues(strconv.Itoa(resp.StatusCode)).Inc()
logger.Debug().
Int64("content-length", resp.ContentLength).
Msgf("%s", resp.Status)
}
// logRequestError logs an error for the proxied request.
func logRequestError(logger *zerolog.Logger, err error) {
requestErrors.Inc()
logger.Error().Err(err).Send()
}