firehol/netdata

// SPDX-License-Identifier: GPL-3.0-or-later

package monit

// status_xml(): https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/http/xml.c#lines-631
type monitStatus struct {
    Server   *statusServer        `xml:"server"`
    Services []statusServiceCheck `xml:"service"`
}

type statusServer struct {
    ID            string `xml:"id"`
    Version       string `xml:"version"`
    Uptime        int64  `xml:"uptime"`
    LocalHostname string `xml:"localhostname"`
}

// status_service(): https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/http/xml.c#lines-196
// struct Service_T: https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/monit.h#lines-1212
type statusServiceCheck struct {
    Type string `xml:"type,attr"`
    Name string `xml:"name"`

    Status int `xml:"status"` // Error flags bitmap

    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/monit.h#lines-269
    MonitoringStatus int `xml:"monitor"`

    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/monit.h#lines-254
    MonitorMode int `xml:"monitormode"`

    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/monit.h#lines-261
    OnReboot int `xml:"onreboot"`

    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/monit.h#lines-248
    PendingAction int `xml:"pendingaction"`
}

func (s *statusServiceCheck) id() string {
    return s.svcType() + ":" + s.Name
}

func (s *statusServiceCheck) svcType() string {
    // See enum Service_Type https://bitbucket.org/tildeslash/monit/src/master/src/monit.h

    switch s.Type {
    case "0":
        return "filesystem"
    case "1":
        return "directory"
    case "2":
        return "file"
    case "3":
        return "process"
    case "4":
        return "host"
    case "5":
        return "system"
    case "6":
        return "fifo"
    case "7":
        return "program"
    case "8":
        return "network"
    default:
        return "unknown"
    }
}

func (s *statusServiceCheck) status() string {
    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/http/cervlet.c#lines-2866

    switch st := s.monitoringStatus(); st {
    case "not_monitored", "initializing":
        return st
    default:
        if s.Status != 0 {
            return "error"
        }
        return "ok"
    }
}

func (s *statusServiceCheck) monitoringStatus() string {
    switch s.MonitoringStatus {
    case 0:
        return "not_monitored"
    case 1:
        return "monitored"
    case 2:
        return "initializing"
    case 4:
        return "waiting"
    default:
        return "unknown"
    }
}

func (s *statusServiceCheck) monitorMode() string {
    switch s.MonitorMode {
    case 0:
        return "active"
    case 1:
        return "passive"
    default:
        return "unknown"
    }
}

func (s *statusServiceCheck) onReboot() string {
    switch s.OnReboot {
    case 0:
        return "start"
    case 1:
        return "no_start"
    default:
        return "unknown"
    }
}

func (s *statusServiceCheck) pendingAction() string {
    switch s.PendingAction {
    case 0:
        return "ignored"
    case 1:
        return "alert"
    case 2:
        return "restart"
    case 3:
        return "stop"
    case 4:
        return "exec"
    case 5:
        return "unmonitor"
    case 6:
        return "start"
    case 7:
        return "monitor"
    default:
        return "unknown"
    }
}

func (s *statusServiceCheck) hasServiceStatus() bool {
    // https://bitbucket.org/tildeslash/monit/src/5467d37d70c3c63c5760cddb93831bde4e17c14b/src/util.c#lines-1721

    const eventNonExist = 512
    const eventData = 2048

    return s.monitoringStatus() == "monitored" &&
        !(s.Status&eventNonExist != 0) &&
        !(s.Status&eventData != 0)
}