Scrape the old Motorola Modem SBV-5121 using chromedp for implement a log of de Internet status.

motorola-sbv5121-scan.go

package main

import (
	"context"
	"log"
	"strings"

	"github.com/chromedp/chromedp"
)

func main() {
	// create context
	ctx, cancel := chromedp.NewContext(context.Background())
	defer cancel()

	// run task list
	var res [10]string

	err := chromedp.Run(ctx,
		// First inject login
		chromedp.Navigate(`http://192.168.100.1/loginData.htm?loginUsername=admin&loginPassword=motorola&LOGIN_BUTTON=Login`),
		// Then open Signal information frameset
		chromedp.Navigate(`http://192.168.100.1/cmSignalData.htm`),
		// Wait to load footer image (I think is the last element to load.)
		chromedp.WaitVisible(`body > table:nth-child(17) > tbody > tr:nth-child(1) > td > center > img`),
		// Copy first element
		chromedp.Text(`center:nth-child(7) > table > tbody > tr:nth-child(2) > td:nth-child(2)`, &res[0], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(7) > table > tbody > tr:nth-child(3) > td:nth-child(2)`, &res[1], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(7) > table > tbody > tr:nth-child(4) > td:nth-child(2)`, &res[2], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(7) > table > tbody > tr:nth-child(5) > td:nth-child(2)`, &res[3], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(7) > table > tbody > tr:nth-child(6) > td:nth-child(2)`, &res[4], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(9) > table > tbody > tr:nth-child(2) > td:nth-child(2)`, &res[5], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(9) > table > tbody > tr:nth-child(3) > td:nth-child(2)`, &res[6], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(9) > table > tbody > tr:nth-child(4) > td:nth-child(2)`, &res[7], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(9) > table > tbody > tr:nth-child(5) > td:nth-child(2)`, &res[8], chromedp.NodeVisible, chromedp.ByQueryAll),
		chromedp.Text(`center:nth-child(9) > table > tbody > tr:nth-child(6) > td:nth-child(2)`, &res[9], chromedp.NodeVisible, chromedp.ByQueryAll),
	)

	if err != nil {
		log.Fatal(err)
	}

	// Remove extra info from one cell
	res[4] = string([]rune(res[4])[0:10])

	var strs []string
	for _, kval := range res {
		strs = append(strs, strings.TrimSpace(kval))

	}
 
	log.Println(strings.Join(strs, "\t"))
}