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Add app to allow openhaystack to work on Bangle.js (hopefully)

master
Gordon Williams 2022-11-11 08:48:10 +00:00
parent 91649606f2
commit c1b0738c47
5 changed files with 89 additions and 0 deletions
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0.01: New App!

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# OpenHaystack (AirTag)
Copy a base64 key from https://github.com/seemoo-lab/openhaystack and make your Bangle.js trackable as if it's an AirTag
Based on https://github.com/seemoo-lab/openhaystack/issues/59
## Usage
* Follow the steps on https://github.com/seemoo-lab/openhaystack#how-to-use-openhaystack to install OpenHaystack and get a unique base64 code
* Click the ≡ icon next to `OpenHaystack (AirTag)`
* Paste in the base64 code
* Click `Upload`
## Note
This code changes your Bangle's MAC address, so while it still advertises with
the same `Bangle.js abcd` name, devices that were previously paired with it
won't automatically reconnect it until you re-pair.

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<html>
<head>
<link rel="stylesheet" href="../../css/spectre.min.css">
</head>
<body>
<p>Follow the steps on <a href="https://github.com/seemoo-lab/openhaystack#how-to-use-openhaystack">https://github.com/seemoo-lab/openhaystack</a> to install OpenHaystack and get a unique base64 code</p>
<p>Then paste the key in below and click <b>Upload</b></p>
<p>Base64 key: <input type="text" id="key" class="form-input" value="..."></p>
<p id="keyStatus">&nbsp;</p>
<p>Click <button id="upload" class="btn btn-primary">Upload</button></p>
<script src="../../core/lib/customize.js"></script>
<script>
function keyChanged() {
var keyValue = document.getElementById("key").value.trim();
var status = "👍 Key Ok.."
if (keyValue.length!=40) status = "⚠️ Key should be 40 characters long";
if (!keyValue.match(/^[A-Za-z0-9+\/=]+$/)) status = "⚠️ Key contains non-base64 characters";
document.getElementById("keyStatus").innerText = status;
}
document.getElementById("key").addEventListener("changed", keyChanged);
document.getElementById("key").addEventListener("keyup", keyChanged);
// When the 'upload' button is clicked...
document.getElementById("upload").addEventListener("click", function() {
// get the text to add
var keyValue = document.getElementById("key").value.trim();
// build the app's text using a templated String
var appJS = `/*
OPENHAYSTACK
A framework for tracking personal Bluetooth devices via Apple's massive Find My network
https://github.com/seemoo-lab/openhaystack/issues/59#issuecomment-1303236903
*/
{
const key = E.toUint8Array(atob(${JSON.stringify(keyValue)})); // public key
const mac = [ key[0] | 0b11000000, key[1], key[2], key[3], key[4], key[5] ].map(x => x.toString(16).padStart(2, '0')).join(':'); // mac address
const adv = [ 0x1e, 0xff, 0x4c, 0x00, 0x12, 0x19, 0x00, key[6], key[7], key[8], key[9], key[10], key[11], key[12], key[13], key[14], key[15], key[16], key[17], key[18], key[19], key[20], key[21], key[22], key[23], key[24], key[25], key[26], key[27], key[0] >> 6, 0x00 ]; // advertising packet
NRF.setAddress(mac);
NRF.setAdvertising([adv,{}]); // advertise AirTag *and* normal device name (to remain connectable)
}
`;
// send finished app
sendCustomizedApp({
storage:[
{name:"openhaystack.boot.js", content:appJS},
]
});
});
</script>
</body>
</html>

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{ "id": "openhaystack",
"name": "OpenHaystack (AirTag)",
"icon": "icon.png",
"version":"0.01",
"description": "Copy a base64 key from https://github.com/seemoo-lab/openhaystack and make your Bangle.js trackable as if it's an AirTag",
"tags": "openhaystack,bluetooth,ble,tracking,airtag",
"type": "bootloader",
"custom": "custom.html",
"readme": "README.md",
"supports": ["BANGLEJS","BANGLEJS2"],
"storage": [
{"name":"openhaystack.boot.js"}
]
}