| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | package monit |
| 4 | |
| 5 | import ( |
| 6 | "encoding/xml" |
| 7 | "errors" |
| 8 | "fmt" |
| 9 | "net/url" |
| 10 | |
| 11 | "golang.org/x/net/html/charset" |
| 12 | |
| 13 | "github.com/netdata/netdata/go/plugins/pkg/web" |
| 14 | ) |
| 15 | |
| 16 | var ( |
| 17 | urlPathStatus = "/_status" |
| 18 | urlQueryStatus = url.Values{"format": {"xml"}, "level": {"full"}}.Encode() |
| 19 | ) |
| 20 | |
| 21 | func (c *Collector) collect() (map[string]int64, error) { |
| 22 | mx := make(map[string]int64) |
| 23 | |
| 24 | if err := c.collectStatus(mx); err != nil { |
| 25 | return nil, err |
| 26 | } |
| 27 | |
| 28 | return mx, nil |
| 29 | } |
| 30 | |
| 31 | func (c *Collector) collectStatus(mx map[string]int64) error { |
| 32 | status, err := c.fetchStatus() |
| 33 | if err != nil { |
| 34 | return err |
| 35 | } |
| 36 | |
| 37 | if status.Server == nil { |
| 38 | // not Monit |
| 39 | return errors.New("invalid Collector status response: missing server data") |
| 40 | } |
| 41 | |
| 42 | mx["uptime"] = status.Server.Uptime |
| 43 | |
| 44 | seen := make(map[string]bool) |
| 45 | |
| 46 | for _, svc := range status.Services { |
| 47 | seen[svc.id()] = true |
| 48 | |
| 49 | if _, ok := c.seenServices[svc.id()]; !ok { |
| 50 | c.seenServices[svc.id()] = svc |
| 51 | c.addServiceCheckCharts(svc, status.Server) |
| 52 | } |
| 53 | |
| 54 | px := fmt.Sprintf("service_check_type_%s_name_%s_status_", svc.svcType(), svc.Name) |
| 55 | |
| 56 | for _, v := range []string{"not_monitored", "ok", "initializing", "error"} { |
| 57 | mx[px+v] = 0 |
| 58 | if svc.status() == v { |
| 59 | mx[px+v] = 1 |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | for id, svc := range c.seenServices { |
| 65 | if !seen[id] { |
| 66 | delete(c.seenServices, id) |
| 67 | c.removeServiceCharts(svc) |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | return nil |
| 72 | } |
| 73 | |
| 74 | func (c *Collector) fetchStatus() (*monitStatus, error) { |
| 75 | req, err := web.NewHTTPRequestWithPath(c.RequestConfig, urlPathStatus) |
| 76 | if err != nil { |
| 77 | return nil, err |
| 78 | } |
| 79 | req.URL.RawQuery = urlQueryStatus |
| 80 | |
| 81 | var status monitStatus |
| 82 | if err := web.DoHTTP(c.httpClient).RequestXML(req, &status, func(d *xml.Decoder) { |
| 83 | d.CharsetReader = charset.NewReaderLabel |
| 84 | }); err != nil { |
| 85 | return nil, err |
| 86 | } |
| 87 | |
| 88 | return &status, nil |
| 89 | } |