Decode devices from a rooted device for tuya smart life app

readme.txt

If you have a rooted phone and tuya's smart life app, the xml data can be found inside data/data/com.tuya.smartlife/shared_prefs
The file name is something akin to preferences_global_key<someid>.xml

TIP: Look for the file with the largest size. The actual data can be found in <map><string>. Something akin to a small script to parse it in node js

decode.js

const fs = require('fs');
const path = require('path');
const xml2js = require('xml2js');


const data = fs.readFileSync(path.join(__dirname, process.argv[2]), {encoding: 'UTF-8'});

xml2js.parseString(data, (err, result) => {
    const str = result.map.string[6]._;
    console.log(str);
    const s = JSON.parse(str);
    const out = JSON.stringify(s.deviceRespBeen, null, 2);
    console.log(out);
    fs.writeFileSync('devices.json', out)
});

run.sh

node decode.js preferences_global_key\<someid\>.xml

Had to change the [6] to [0] on line 9 to get this to work. Not sure that's a result of Smart Life changes but using 3.6.1 to get the prefs xml.