329 lines
11 KiB
Go
329 lines
11 KiB
Go
package main
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import (
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"bytes"
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"crypto/tls"
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"encoding/json"
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"errors"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"net/http/cookiejar"
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"os"
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"strconv"
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"time"
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influx "github.com/influxdata/influxdb/client/v2"
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)
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const (
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// LoginPath is Unifi Controller Login API Path
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LoginPath = "/api/login"
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// ClientPath is Unifi Clients API Path
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ClientPath = "/api/s/default/stat/sta"
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)
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// ClientResponse marshalls the payload from the controller.
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type ClientResponse struct {
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Clients []Client `json:"data"`
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Meta struct {
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Rc string `json:"rc"`
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} `json:"meta"`
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}
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// Config represents the data needed to poll a controller and report to influxdb.
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type Config struct {
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Interval time.Duration `json:"interval",toml:"interval",yaml:"interval"`
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InfluxAddr string `json:"influx_addr",toml:"influx_addr",yaml:"influx_addr"`
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InfluxUser string `json:"influx_user",toml:"influx_user",yaml:"influx_user"`
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InfluxPass string `json:"influx_pass",toml:"influx_pass",yaml:"influx_pass"`
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InfluxDB string `json:"influx_db",toml:"influx_db",yaml:"influx_db"`
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UnifiUser string `json:"unifi_user",toml:"unifi_user",yaml:"unifi_user"`
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UnifiPass string `json:"unifi_pass"toml:"unifi_pass",yaml:"unifi_pass"`
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UnifiBase string `json:"unifi_url",toml:"unifi_url",yaml:"unifi_url"`
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uniClient *http.Client
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}
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// DpiStat is for deep packet inspection stats.
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// Does not seem to exist in Unifi 5.7.20.
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type DpiStat struct {
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App int64
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Cat int64
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RxBytes int64
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RxPackets int64
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TxBytes int64
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TxPackets int64
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}
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// Client defines all the data a connected-network client contains.
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type Client struct {
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ID string `json:"_id"`
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IsGuestByUAP bool `json:"_is_guest_by_uap"`
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IsGuestByUGW bool `json:"_is_guest_by_ugw"`
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IsGuestByUSW bool `json:"_is_guest_by_usw"`
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LastSeenByUAP int64 `json:"_last_seen_by_uap"`
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LastSeenByUGW int64 `json:"_last_seen_by_ugw"`
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LastSeenByUSW int64 `json:"_last_seen_by_usw"`
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UptimeByUAP int64 `json:"_uptime_by_uap"`
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UptimeByUGW int64 `json:"_uptime_by_ugw"`
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UptimeByUSW int64 `json:"_uptime_by_usw"`
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ApMac string `json:"ap_mac"`
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AssocTime int64 `json:"assoc_time"`
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Authorized bool `json:"authorized"`
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Bssid string `json:"bssid"`
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BytesR int64 `json:"bytes-r"`
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Ccq int64 `json:"ccq"`
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Channel int `json:"channel"`
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DpiStats []DpiStat `json:"dpi_stats"`
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DpiStatsLastUpdated int64 `json:"dpi_stats_last_updated"`
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Essid string `json:"essid"`
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FirstSeen int64 `json:"first_seen"`
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FixedIP string `json:"fixed_ip"`
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Hostname string `json:"hostname"`
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GwMac string `json:"gw_mac"`
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IdleTime int64 `json:"idle_time"`
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IP string `json:"ip"`
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Is11R bool `json:"is_11r"`
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IsGuest bool `json:"is_guest"`
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IsWired bool `json:"is_wired"`
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LastSeen int64 `json:"last_seen"`
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LatestAssocTime int64 `json:"latest_assoc_time"`
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Mac string `json:"mac"`
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Name string `json:"name"`
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Network string `json:"network"`
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NetworkID string `json:"network_id"`
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Noise int64 `json:"noise"`
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Note string `json:"note"`
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Noted bool `json:"noted"`
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Oui string `json:"oui"`
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PowersaveEnabled bool `json:"powersave_enabled"`
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QosPolicyApplied bool `json:"qos_policy_applied"`
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Radio string `json:"radio"`
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RadioName string `json:"radio_name"`
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RadioProto string `json:"radio_proto"`
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RoamCount int64 `json:"roam_count"`
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Rssi int64 `json:"rssi"`
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RxBytes int64 `json:"rx_bytes"`
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RxBytesR int64 `json:"rx_bytes-r"`
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RxPackets int64 `json:"rx_packets"`
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RxRate int64 `json:"rx_rate"`
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Signal int64 `json:"signal"`
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SiteID string `json:"site_id"`
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SwDepth int `json:"sw_depth"`
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SwMac string `json:"sw_mac"`
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SwPort int `json:"sw_port"`
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TxBytes int64 `json:"tx_bytes"`
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TxBytesR int64 `json:"tx_bytes-r"`
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TxPackets int64 `json:"tx_packets"`
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TxPower int64 `json:"tx_power"`
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TxRate int64 `json:"tx_rate"`
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Uptime int64 `json:"uptime"`
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UserID string `json:"user_id"`
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UserGroupID string `json:"usergroup_id"`
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UseFixedIP bool `json:"use_fixedip"`
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Vlan int `json:"vlan"`
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}
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// Point generates a client's datapoint for InfluxDB.
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func (c Client) Point() *influx.Point {
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if c.Name == "" && c.Hostname != "" {
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c.Name = c.Hostname
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} else if c.Hostname == "" && c.Name != "" {
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c.Hostname = c.Name
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} else if c.Hostname == "" && c.Name == "" {
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c.Hostname = "-no-name-"
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c.Name = "-no-name-"
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}
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tags := map[string]string{
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"id": c.ID,
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"mac": c.Mac,
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"user_id": c.UserID,
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"site_id": c.SiteID,
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"ip": c.IP,
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"fixed_ip": c.FixedIP,
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"essid": c.Essid,
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"bssid": c.Bssid,
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"network": c.Network,
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"network_id": c.NetworkID,
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"usergroup_id": c.UserGroupID,
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"ap_mac": c.ApMac,
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"gw_mac": c.GwMac,
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"sw_mac": c.SwMac,
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"sw_port": strconv.Itoa(c.SwPort),
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"oui": c.Oui,
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"name": c.Name,
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"hostname": c.Hostname,
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"radio_name": c.RadioName,
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"radio": c.Radio,
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"radio_proto": c.RadioProto,
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"authorized": strconv.FormatBool(c.Authorized),
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"is_11r": strconv.FormatBool(c.Is11R),
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"is_wired": strconv.FormatBool(c.IsWired),
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"is_guest": strconv.FormatBool(c.IsGuest),
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"is_guest_by_uap": strconv.FormatBool(c.IsGuestByUAP),
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"is_guest_by_ugw": strconv.FormatBool(c.IsGuestByUGW),
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"is_guest_by_usw": strconv.FormatBool(c.IsGuestByUSW),
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"noted": strconv.FormatBool(c.Noted),
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"powersave_enabled": strconv.FormatBool(c.PowersaveEnabled),
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"qos_policy_applied": strconv.FormatBool(c.QosPolicyApplied),
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"use_fixedip": strconv.FormatBool(c.UseFixedIP),
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"channel": strconv.Itoa(c.Channel),
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"vlan": strconv.Itoa(c.Vlan),
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}
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fields := map[string]interface{}{
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"dpi_stats_last_updated": c.DpiStatsLastUpdated,
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"last_seen_by_uap": c.LastSeenByUAP,
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"last_seen_by_ugw": c.LastSeenByUGW,
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"last_seen_by_usw": c.LastSeenByUSW,
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"uptime_by_uap": c.UptimeByUAP,
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"uptime_by_ugw": c.UptimeByUGW,
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"uptime_by_usw": c.UptimeByUSW,
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"assoc_time": c.AssocTime,
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"bytes_r": c.BytesR,
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"ccq": c.Ccq,
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"first_seen": c.FirstSeen,
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"idle_time": c.IdleTime,
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"last_seen": c.LastSeen,
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"latest_assoc_time": c.LatestAssocTime,
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"noise": c.Noise,
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"note": c.Note,
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"roam_count": c.RoamCount,
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"rssi": c.Rssi,
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"rx_bytes": c.RxBytes,
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"rx_bytes_r": c.RxBytesR,
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"rx_packets": c.RxPackets,
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"rx_rate": c.RxRate,
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"signal": c.Signal,
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"tx_bytes": c.TxBytes,
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"tx_bytes_r": c.TxBytesR,
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"tx_packets": c.TxPackets,
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"tx_power": c.TxPower,
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"tx_rate": c.TxRate,
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"uptime": c.Uptime,
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}
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pt, err := influx.NewPoint("client_state", tags, fields, time.Now())
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if err != nil {
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log.Println("Error creating point:", err)
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return nil
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}
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return pt
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}
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func main() {
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config := GetConfig()
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if err := config.AuthController(); err != nil {
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log.Fatal(err)
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}
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log.Println("Successfully authenticated to Unifi Controller!")
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infdb, err := influx.NewHTTPClient(influx.HTTPConfig{
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Addr: config.InfluxAddr,
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Username: config.InfluxUser,
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Password: config.InfluxPass,
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})
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if err != nil {
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log.Fatal(err)
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}
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log.Println("Polling Unifi Controller, interval:", config.Interval)
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config.PollUnifiController(infdb)
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}
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// PollUnifiController runs forever, polling and pushing.
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func (c *Config) PollUnifiController(infdb influx.Client) {
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ticker := time.NewTicker(c.Interval)
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for range ticker.C {
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uniResponse, err := c.GetUnifiClients()
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if err != nil {
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log.Println("GetUnifiClients(unifi):", err)
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continue
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}
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bp, err := influx.NewBatchPoints(influx.BatchPointsConfig{
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Database: c.InfluxDB,
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})
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if err != nil {
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log.Println("influx.NewBatchPoints:", err)
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continue
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}
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for _, client := range uniResponse.Clients {
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bp.AddPoint(client.Point())
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}
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if err = infdb.Write(bp); err != nil {
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log.Println("infdb.Write(bp):", err)
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continue
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}
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log.Println("Logged client state. Clients:", len(uniResponse.Clients))
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}
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}
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// GetConfig parses and returns our configuration data.
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func GetConfig() Config {
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// TODO: A real config file.
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var err error
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config := Config{
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InfluxAddr: os.Getenv("INFLUXDB_ADDR"),
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InfluxUser: os.Getenv("INFLUXDB_USERNAME"),
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InfluxPass: os.Getenv("INFLUXDB_PASSWORD"),
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InfluxDB: os.Getenv("INFLUXDB_DATABASE"),
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UnifiUser: os.Getenv("UNIFI_USERNAME"),
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UnifiPass: os.Getenv("UNIFI_PASSWORD"),
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UnifiBase: "https://" + os.Getenv("UNIFI_ADDR") + ":" + os.Getenv("UNIFI_PORT"),
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}
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if config.Interval, err = time.ParseDuration(os.Getenv("INTERVAL")); err != nil {
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log.Println("Invalid Interval, defaulting to 15 seconds.")
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config.Interval = time.Duration(time.Second * 15)
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}
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return config
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}
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// GetUnifiClients returns a response full of clients' data from the Unifi Controller.
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func (c *Config) GetUnifiClients() (*ClientResponse, error) {
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response := &ClientResponse{}
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if req, err := uniRequest("GET", c.UnifiBase+ClientPath, nil); err != nil {
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return nil, err
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} else if resp, err := c.uniClient.Do(req); err != nil {
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return nil, err
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} else if body, err := ioutil.ReadAll(resp.Body); err != nil {
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return nil, err
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} else if err = json.Unmarshal(body, response); err != nil {
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return nil, err
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} else if err = resp.Body.Close(); err != nil {
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log.Println("resp.Body.Close():", err) // Not fatal? Just log it.
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}
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return response, nil
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}
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// AuthController creates a http.Client with authenticated cookies.
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// Used to make additional, authenticated requests to the APIs.
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func (c *Config) AuthController() error {
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json := bytes.NewBufferString(`{"username": "` + c.UnifiUser + `","password": "` + c.UnifiPass + `"}`)
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jar, err := cookiejar.New(nil)
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if err != nil {
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return err
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}
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c.uniClient = &http.Client{
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Transport: &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}},
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Jar: jar,
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}
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if req, err := uniRequest("POST", c.UnifiBase+LoginPath, json); err != nil {
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return err
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} else if resp, err := c.uniClient.Do(req); err != nil {
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return err
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} else if resp.StatusCode != http.StatusOK {
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return errors.New("Error Authenticating with Unifi Controller")
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}
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return nil
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}
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func uniRequest(method string, url string, data io.Reader) (*http.Request, error) {
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req, err := http.NewRequest(method, url, data)
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if err != nil {
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return nil, err
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}
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req.Header.Add("Accept", "application/json")
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return req, nil
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}
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