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// SPDX-License-Identifier: GPL-3.0-or-later
package bind
import (
"encoding/xml"
"fmt"
"net/http"
"net/url"
"path"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
type xml3Stats struct {
Server xml3Server `xml:"server"`
Views []xml3View `xml:"views>view"`
}
type xml3Server struct {
CounterGroups []xml3CounterGroup `xml:"counters"`
}
type xml3CounterGroup struct {
Type string `xml:"type,attr"`
Counters []struct {
Name string `xml:"name,attr"`
Value int64 `xml:",chardata"`
} `xml:"counter"`
}
type xml3View struct {
Name string `xml:"name,attr"`
CounterGroups []xml3CounterGroup `xml:"counters"`
}
func newXML3Client(client *http.Client, request web.Request) *xml3Client {
return &xml3Client{httpClient: client, request: request}
}
type xml3Client struct {
httpClient *http.Client
request web.Request
}
func (c xml3Client) serverStats() (*serverStats, error) {
req := c.request.Copy()
u, err := url.Parse(req.URL)
if err != nil {
return nil, fmt.Errorf("error on parsing URL: %v", err)
}
u.Path = path.Join(u.Path, "/server")
req.URL = u.String()
httpReq, err := web.NewHTTPRequest(req)
if err != nil {
return nil, fmt.Errorf("error on creating HTTP request: %v", err)
}
resp, err := c.httpClient.Do(httpReq)
if err != nil {
return nil, fmt.Errorf("error on request : %v", err)
}
defer closeBody(resp)
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("%s returned HTTP status %d", httpReq.URL, resp.StatusCode)
}
stats := xml3Stats{}
if err = xml.NewDecoder(resp.Body).Decode(&stats); err != nil {
return nil, fmt.Errorf("error on decoding response from %s : %v", httpReq.URL, err)
}
return convertXML(stats), nil
}
func convertXML(xmlStats xml3Stats) *serverStats {
stats := serverStats{
OpCodes: make(map[string]int64),
NSStats: make(map[string]int64),
QTypes: make(map[string]int64),
SockStats: make(map[string]int64),
Views: make(map[string]jsonView),
}
var m map[string]int64
for _, group := range xmlStats.Server.CounterGroups {
switch group.Type {
default:
continue
case "opcode":
m = stats.OpCodes
case "qtype":
m = stats.QTypes
case "nsstat":
m = stats.NSStats
case "sockstat":
m = stats.SockStats
}
for _, v := range group.Counters {
m[v.Name] = v.Value
}
}
for _, view := range xmlStats.Views {
stats.Views[view.Name] = jsonView{
Resolver: jsonViewResolver{
Stats: make(map[string]int64),
QTypes: make(map[string]int64),
CacheStats: make(map[string]int64),
},
}
for _, viewGroup := range view.CounterGroups {
switch viewGroup.Type {
default:
continue
case "resqtype":
m = stats.Views[view.Name].Resolver.QTypes
case "resstats":
m = stats.Views[view.Name].Resolver.Stats
case "cachestats":
m = stats.Views[view.Name].Resolver.CacheStats
}
for _, viewCounter := range viewGroup.Counters {
m[viewCounter.Name] = viewCounter.Value
}
}
}
return &stats
}
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