1 files changed, 133 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/bind/xml3_client.go b/src/go/collectors/go.d.plugin/modules/bind/xml3_client.go
new file mode 100644
index 000000000..8ba804ecf
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/bind/xml3_client.go
@@ -0,0 +1,133 @@
+// 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
+}