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path: root/cmd/rr/http/debug.go
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package http

import (
	"fmt"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cobra"
	"github.com/spiral/roadrunner"
	rr "github.com/spiral/roadrunner/cmd/rr/cmd"
	"github.com/spiral/roadrunner/cmd/util"
	rrhttp "github.com/spiral/roadrunner/service/http"
	"net/http"
)

func init() {
	cobra.OnInitialize(func() {
		if rr.Debug {
			svc, _ := rr.Container.Get(rrhttp.ID)
			if svc, ok := svc.(*rrhttp.Service); ok {
				svc.AddListener((&debugger{logger: rr.Logger}).listener)
			}
		}
	})
}

// listener provide debug callback for system events. With colors!
type debugger struct{ logger *logrus.Logger }

// listener listens to http events and generates nice looking output.
func (s *debugger) listener(event int, ctx interface{}) {
	if util.LogEvent(s.logger, event, ctx) {
		// handler by default debug package
		return
	}

	// http events
	switch event {
	case rrhttp.EventResponse:
		e := ctx.(*rrhttp.ResponseEvent)
		s.logger.Info(util.Sprintf(
			"<cyan+h>%s</reset> %s <white+hb>%s</reset> %s",
			e.Request.RemoteAddr,
			statusColor(e.Response.Status),
			e.Request.Method,
			e.Request.URI,
		))
	case rrhttp.EventError:
		e := ctx.(*rrhttp.ErrorEvent)

		if _, ok := e.Error.(roadrunner.JobError); ok {
			s.logger.Info(util.Sprintf(
				"%s <white+hb>%s</reset> %s",
				statusColor(500),
				e.Request.Method,
				uri(e.Request),
			))
		} else {
			s.logger.Info(util.Sprintf(
				"%s <white+hb>%s</reset> %s <red>%s</reset>",
				statusColor(500),
				e.Request.Method,
				uri(e.Request),
				e.Error,
			))
		}
	}
}

func statusColor(status int) string {
	if status < 300 {
		return util.Sprintf("<green>%v</reset>", status)
	}

	if status < 400 {
		return util.Sprintf("<cyan>%v</reset>", status)
	}

	if status < 500 {
		return util.Sprintf("<yellow>%v</reset>", status)
	}

	return util.Sprintf("<red>%v</reset>", status)
}

func uri(r *http.Request) string {
	if r.TLS != nil {
		return fmt.Sprintf("https://%s%s", r.Host, r.URL.String())
	}

	return fmt.Sprintf("http://%s%s", r.Host, r.URL.String())
}