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// SPDX-License-Identifier: GPL-3.0-or-later
package httpcheck
import (
"errors"
"fmt"
"net/http"
"regexp"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/matcher"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
type headerMatch struct {
exclude bool
key string
valMatcher matcher.Matcher
}
func (hc *HTTPCheck) validateConfig() error {
if hc.URL == "" {
return errors.New("'url' not set")
}
return nil
}
func (hc *HTTPCheck) initHTTPClient() (*http.Client, error) {
return web.NewHTTPClient(hc.Client)
}
func (hc *HTTPCheck) initResponseMatchRegexp() (*regexp.Regexp, error) {
if hc.ResponseMatch == "" {
return nil, nil
}
return regexp.Compile(hc.ResponseMatch)
}
func (hc *HTTPCheck) initHeaderMatch() ([]headerMatch, error) {
if len(hc.HeaderMatch) == 0 {
return nil, nil
}
var hms []headerMatch
for _, v := range hc.HeaderMatch {
if v.Key == "" {
continue
}
hm := headerMatch{
exclude: v.Exclude,
key: v.Key,
valMatcher: nil,
}
if v.Value != "" {
m, err := matcher.Parse(v.Value)
if err != nil {
return nil, fmt.Errorf("parse key '%s value '%s': %v", v.Key, v.Value, err)
}
if v.Exclude {
m = matcher.Not(m)
}
hm.valMatcher = m
}
hms = append(hms, hm)
}
return hms, nil
}
func (hc *HTTPCheck) initCharts() *module.Charts {
charts := httpCheckCharts.Copy()
for _, chart := range *charts {
chart.Labels = []module.Label{
{Key: "url", Value: hc.URL},
}
}
return charts
}
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