Cloudflare

Hey.
I was revisiting a few scripts, this is what I found.

IP update

The ISP is changing the ip now and then.
So I keep sending myself and email with my ip from my parent's house.
It's running on a cron like this.

* * * * * beside /home/beside/mail >> /home/beside/cron.log 2>&1

#!/bin/bash
/home/beside/node-v14.18.0-linux-x64/bin/node /home/beside/code/mail/index.js

Mailing IP if necessary

async function main() {
  const oldIP = fs.readFileSync(__dirname+"/ip.txt", 'utf-8')
  const command = 'VARIABLE=$(curl -s https://ipinfo.io/ip) && echo $VARIABLE'

  exec(command, (error, stdout, stderr) => {
    if (error) {
        console.log(`error: ${error.message}`);
        return;
    }
    if (stderr) {
        console.log(`stderr: ${stderr}`);
        return;
    }

    if (oldIP == stdout) {
	console.log("same")
	return
    }
    
    fs.writeFileSync(__dirname+"/ip.txt", stdout)
    console.log(`changed to: ${stdout}`);

    return transporter.sendMail({
      from: '"IP Daemon" <daniel.622.guerrero@gmail.com>', // sender address
      to: "daniel.622.guerrero@gmail.com", // list of receivers
      subject: "New IP" , // Subject line
      text: `This one: ${stdout}`, // plain text body
    }).then((info) => {
      console.log("Message sent: %s", info.messageId);
      console.log("Preview URL: %s", nodemailer.getTestMessageUrl(info));
    });
});

Commands on CLI

IP check

    const response = await fetch('https://ipinfo.io/ip')
    const ip = await response.text()
    this.log(ip)

Cloudflare DNS update

After trying with ddclient and failing miserably I used the cloudflare api endpoints

    const updateResponse = await fetch(updateURL, {
      method: 'PUT',
      headers: [['Content-Type', 'application/json'], ['Authorization', token]],
      body: JSON.stringify({
        type: 'A',
        name: flags.name,
        content: flags.ip,
        ttl: 3600,
        proxied: true,
      }),
    })

So after running this

daemon ip cloudflare --name journal -i '190.51.23.246'

I get this