/
alarmbot.go
197 lines (169 loc) · 5.91 KB
/
alarmbot.go
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package main
import (
"fmt"
"github.com/nlopes/slack"
"github.com/spf13/viper"
"net"
"net/http"
"os"
"strconv"
"strings"
"time"
)
func chk(err error) {
if err != nil {
fmt.Println("Error: ", err)
os.Exit(1)
}
}
// return etime, channel, data
func Split(s string) (string, string, string) {
if len(s) == 0 {
return "", "", ""
}
slice := strings.SplitN(s, " ", 2)
if len(slice) != 2 {
return "", "", ""
}
slice2 := strings.SplitN(slice[1], "=", 2)
if len(slice2) != 2 {
return "", "", ""
}
return slice[0], slice2[0], slice2[1]
}
func logToSlack(api *slack.Client, my_name string, channel string, msg string, fields []slack.AttachmentField) {
params := slack.NewPostMessageParameters()
params.Username = my_name
params.IconEmoji = ":page_with_curl:"
attachment := slack.Attachment{}
attachment.Color = "#ffaa00"
attachment.Title = "Log Entry"
attachment.Text = msg
attachment.Fields = fields
params.Attachments = []slack.Attachment{attachment}
api.PostMessage(channel, "", params)
}
func statusToSlack(api *slack.Client, my_name string, channel string, msg string) {
params := slack.NewPostMessageParameters()
params.Username = my_name
params.IconEmoji = ":exclamation:"
attachment := slack.Attachment{}
attachment.Color = "#ffaa00"
attachment.Title = "Alarm Status Update"
attachment.Text = msg
params.Attachments = []slack.Attachment{attachment}
api.PostMessage(channel, "", params)
}
func lightsToSlack(api *slack.Client, my_name string, channel string, image string, level int) {
_, err := http.Get(image)
chk(err)
params := slack.NewPostMessageParameters()
params.Username = my_name
params.IconEmoji = ":bulb:"
attachment := slack.Attachment{}
attachment.Color = "#00ff00"
attachment.Title = "Lights detected"
attachment.Text = fmt.Sprintf("Light level detected: %d", level)
attachment.ImageURL = image
params.Attachments = []slack.Attachment{attachment}
api.PostMessage(channel, "", params)
}
func motionToSlack(api *slack.Client, my_name string, channel string, image string, count int) {
_, _ = http.Get("https://ballarathackerspace.org.au/ws2812/a|10")
_, err := http.Get(image)
chk(err)
params := slack.NewPostMessageParameters()
params.Username = my_name
params.IconEmoji = ":rotating_light:"
attachment := slack.Attachment{}
attachment.Color = "#ff0000"
attachment.Title = "Motion detected"
attachment.Text = fmt.Sprintf("Motion events detected: %d", count)
attachment.ImageURL = image
params.Attachments = []slack.Attachment{attachment}
api.PostMessage(channel, "", params)
}
type Light struct {
level int
lights_on bool
}
func main() {
var activity_seen int64
var last_motion_alert int64 = 0
lights := Light{level: 0, lights_on: false}
viper.SetConfigName("config")
viper.AddConfigPath("/etc/alarmbot-go/")
viper.AddConfigPath("$HOME/.alarmbot-go/")
viper.AddConfigPath(".")
viper.SetDefault("port", 25276)
viper.SetDefault("debugging", false)
viper.SetDefault("squelch", 120)
viper.SetDefault("lights_trip", 1500)
viper.SetDefault("to_channel", "#security")
viper.SetDefault("log_channel", "#logging")
viper.SetDefault("my_name", "AlarmBot GO")
err := viper.ReadInConfig()
chk(err)
slack_api := slack.New(viper.GetString("slack_api"))
fields := []slack.AttachmentField{
slack.AttachmentField{"debugging", viper.GetString("debugging"), true},
slack.AttachmentField{"squelch", viper.GetString("squelch"), true},
slack.AttachmentField{"log_channel", viper.GetString("log_channel"), true},
slack.AttachmentField{"to_channel", viper.GetString("to_channel"), true},
slack.AttachmentField{"port", viper.GetString("port"), true},
slack.AttachmentField{"lights_trip", viper.GetString("lights_trip"), true},
}
logToSlack(slack_api, viper.GetString("my_name"), viper.GetString("log_channel"), "I'm online and monitoring", fields)
ServerAddr, err := net.ResolveUDPAddr("udp", ":"+viper.GetString("port"))
chk(err)
ServerConn, err := net.ListenUDP("udp", ServerAddr)
defer ServerConn.Close()
chk(err)
buf := make([]byte, 1024)
activity_seen = time.Now().Unix()
watchdog := time.NewTicker(150 * time.Second)
go func() {
for t := range watchdog.C {
last_activity := t.Unix() - activity_seen
fmt.Println("activity last seen:", last_activity, "seconds ago")
if last_activity > 600 {
// TODO: reboot core via spark api (https://github.com/getniwa/particle)
fmt.Println("Nothing seen from core in over 10 minutes, please reboot")
}
}
}()
for {
n, _, err := ServerConn.ReadFromUDP(buf)
chk(err)
etime, channel, data := Split(string(buf[0:n]))
fmt.Println("Time:", etime, "Channel:", channel, "Data:", data)
// logToSlack(slack_api, viper.GetString("my_name"), viper.GetString("log_channel"), fmt.Sprintf("Channel: %s, Data: %s", channel, data))
activity_seen = time.Now().Unix()
if channel == "ballarathackerspace.org.au/status" {
statusToSlack(slack_api, viper.GetString("my_name"), viper.GetString("to_channel"), data)
} else if channel == "ballarathackerspace.org.au/motion" {
count, err := strconv.Atoi(data)
chk(err)
if time.Now().Unix()-last_motion_alert > int64(viper.GetInt("squelch")) {
motionToSlack(slack_api, viper.GetString("my_name"), viper.GetString("to_channel"), fmt.Sprintf("https://ballarathackerspace.org.au/webcam%s.jpg", etime), count)
} else {
fmt.Println("squelched a motion alarm")
}
last_motion_alert = time.Now().Unix()
} else if channel == "ballarathackerspace.org.au/light" {
lights.level, err = strconv.Atoi(data)
chk(err)
if lights.level > viper.GetInt("lights_trip") {
if !lights.lights_on {
lightsToSlack(slack_api, viper.GetString("my_name"), viper.GetString("to_channel"), fmt.Sprintf("https://ballarathackerspace.org.au/webcam%s.jpg", etime), lights.level)
lights.lights_on = true
}
} else {
lights.lights_on = false
}
} else if channel == "ballarathackerspace.org.au/watchdog" {
} else if channel == "ballarathackerspace.org.au/wifi" {
} else {
}
}
}