/
sidecarCom.go
183 lines (151 loc) · 3.86 KB
/
sidecarCom.go
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package sidecar
import (
"bufio"
"fmt"
"github.com/tatsushid/go-fastping"
"golang.org/x/net/context"
"io/ioutil"
"log"
"net"
"os"
"regexp"
"strings"
"time"
)
type Server struct {
}
func (s *Server) mustEmbedUnimplementedChatServiceServer() {
//panic("implement me")
}
var Timestamp string
var Location string
var Sensortyp string
var SensorID int32
var SensorData string
var localmessage string
var msg *Message
func (s *Server) DataFromService(ctx context.Context, message *Message) (*MessageReply, error) {
log.Printf( "Recived message body from client %s , %s , %s , %s , %s ", message.Timestamp, message.Location,message.Sensortyp, message.SensorID , message.SensorData)
Timestamp = message.Timestamp
Location = message.Location
Sensortyp = message.Sensortyp
SensorID = message.SensorID
SensorData = message.SensorData
localmessage = Timestamp + "|" + Location + "|" + Sensortyp + "|" + string(SensorID) + "|" + SensorData
msg = message
SafeToFile(Sensortyp,SensorData,Timestamp)
go client(msg)
return &MessageReply{Reply: "Sidecar Proxy: Received the message"}, nil
}
func (s *Server) HealthCheck(ctx context.Context, health *Health) (*MessageReply, error) {
fmt.Println("Sending pings to all registered entries")
file, err := os.Open("../files/sidecarConfig.csv")
if err != nil {
log.Fatal(err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
var lines []string
var response string
for scanner.Scan() {
line := scanner.Text()
lines = append(lines, line)
}
for _, value := range lines {
res := strings.Split(value, ";")
fmt.Println(res)
p := fastping.NewPinger()
ra, err := net.ResolveIPAddr("ip4:icmp", "www.google.com")
//ra, err := net.ResolveIPAddr("ip4:icmp", res[1])
if err != nil {
fmt.Println(err)
os.Exit(1)
}
p.AddIPAddr(ra)
p.OnRecv = func(addr *net.IPAddr, rtt time.Duration) {
//response = fmt.Printf("IP Addr: %s receive, RTT: %v\n", addr.String(), rtt)
response = fmt.Sprintf( "%s ID: %s IP Addr: %s receive, RTT: %v; \n ",response,res[0],addr.String(),rtt)
}
p.OnIdle = func() {
}
err = p.Run()
if err != nil {
fmt.Println(err)
}
}
return &MessageReply{Reply: response}, nil
}
func (s *Server) GetMessage() (string) {
return localmessage
}
func SafeToFile(ip string, sid string,tst string) (){
b, err := ioutil.ReadFile("../files/sidecarConfig.csv")
if err != nil {
panic(err)
}
suchRegex:=sid+";"
fmt.Println(suchRegex)
isExist, err := regexp.Match(suchRegex, b)
if err != nil {
panic(err)
}
if isExist == false {
fmt.Println("Debug: Saving the connection data")
f, err := os.OpenFile("../files/sidecarConfig.csv", os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
if err != nil {
fmt.Println(err)
return
}
l, err := f.WriteString(sid + ";" + ip + ";" + "Timestamp" + ";" + "\n")
if err != nil {
fmt.Println(err)
f.Close()
return
}
fmt.Println(l, "Debug: Bytes written successfully")
err = f.Close()
if err != nil {
fmt.Println(err)
return
}
} else {
fmt.Println("Debug: ID already stored")
file, err := os.Open("../files/sidecarConfig.csv")
if err != nil {
log.Fatal(err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
var lines []string
for scanner.Scan() {
line := scanner.Text()
fmt.Println(line)
lines = append(lines, line)
}
for i := 0; i < len(lines); i++ {
if strings.Contains(lines[i],suchRegex) {
//lines[i]= sid + ";" + ip + ";" + "Timestamp" + ";"
lines[i]= sid + ";" + ip + ";" + tst + ";"
break
}
}
f, err := os.OpenFile("../files/sidecarConfig.csv", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
if err != nil {
fmt.Println(err)
return
}
for _, value := range lines {
fmt.Fprintln(f, value) // print values to f, one per line
}
if err != nil {
fmt.Println(err)
f.Close()
return
}
err = f.Close()
if err != nil {
fmt.Println(err)
return
}
}
}