Merge pull request #1 from compscore/ping-implementation

Intial Implementation

go.mod

@@ -0,0 +1,12 @@
+module github.com/compscore/ping
+
+go 1.20
+
+require github.com/go-ping/ping v1.1.0
+
+require (
+	github.com/google/uuid v1.2.0 // indirect
+	golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 // indirect
+)

go.sum

@@ -0,0 +1,14 @@
+github.com/go-ping/ping v1.1.0 h1:3MCGhVX4fyEUuhsfwPrsEdQw6xspHkv5zHsiSoDFZYw=
+github.com/go-ping/ping v1.1.0/go.mod h1:xIFjORFzTxqIV/tDVGO4eDy/bLuSyawEeojSm3GfRGk=
+github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
+github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 h1:b0LrWgu8+q7z4J+0Y3Umo5q1dL7NXBkKBWkaVkAq17E=
+golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 h1:pDMpM2zh2MT0kHy037cKlSby2nEhD50SYqwQk76Nm40=
+golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

main.go

@@ -2,8 +2,48 @@ package main
 
 import (
 	"context"
+	"fmt"
+
+	"github.com/go-ping/ping"
 )
 
 func Run(ctx context.Context, target string, command string, expectedOutput string, username string, password string) (bool, string) {
-	return true, ""
+	// create ping
+	pinger, err := ping.NewPinger(target)
+	if err != nil {
+		return false, err.Error()
+	}
+
+	pinger.Count = 1
+	doneChan := make(chan error, 1)
+
+	// run ping
+	go func() {
+		doneChan <- pinger.Run()
+	}()
+
+	// handle ping output
+	select {
+	case err := <-doneChan:
+		if err != nil {
+			// error encoutnered when attempting to ping
+			return false, fmt.Sprintf("Encounter error: %s", err)
+		}
+
+		stats := pinger.Statistics()
+
+		if stats.PacketLoss == 0 {
+			// successful ping
+			return true, ""
+		} else {
+			// packet loss not 0
+			return false, fmt.Sprintf("Packet loss: %.2f%%", stats.PacketLoss)
+		}
+
+	case <-ctx.Done():
+		pinger.Stop()
+
+		// context exceed; timeout
+		return false, fmt.Sprintf("Timeout exceeded; err: %s", ctx.Err())
+	}
 }