security/hakurei.app
security/hakurei.app
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Create an alert if user tries to leave during download or installation.

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This commit is contained in:
flawedworld 2021-04-07 00:14:57 +01:00 committed by Daniel Micay
parent d7bec67ccc
commit d7ed02a28f
1 changed files with 30 additions and 10 deletions
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40
static/js/web-install.js
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@ -7,6 +7,8 @@ const RELEASES_URL = "https://releases.grapheneos.org";
const CACHE_DB_NAME = "BlobStore";
const CACHE_DB_VERSION = 1;
let safeToLeave = true;
// This wraps XHR because getting progress updates with fetch() is overly complicated.
function fetchBlobWithProgress(url, onProgress) {
let xhr = new XMLHttpRequest();
@ -155,11 +157,16 @@ async function downloadRelease(setProgress) {
let latestZip = await getLatestRelease();
// Download and cache the zip as a blob
safeToLeave = false;
setProgress(`Downloading ${latestZip}...`);
await blobStore.init();
await blobStore.download(`${RELEASES_URL}/${latestZip}`, (progress) => {
setProgress(`Downloading ${latestZip}...`, progress);
});
try {
await blobStore.download(`${RELEASES_URL}/${latestZip}`, (progress) => {
setProgress(`Downloading ${latestZip}...`, progress);
});
} finally {
safeToLeave = true;
}
setProgress(`Downloaded ${latestZip} release.`, 1.0);
}
@ -196,13 +203,18 @@ async function flashRelease(setProgress) {
}
setProgress("Flashing release...");
await device.flashFactoryZip(blob, true, reconnectCallback,
(action, item, progress) => {
let userAction = fastboot.USER_ACTION_MAP[action];
let userItem = item === "avb_custom_key" ? "verified boot key" : item;
setProgress(`${userAction} ${userItem}...`, progress);
}
);
safeToLeave = false;
try {
await device.flashFactoryZip(blob, true, reconnectCallback,
(action, item, progress) => {
let userAction = fastboot.USER_ACTION_MAP[action];
let userItem = item === "avb_custom_key" ? "verified boot key" : item;
setProgress(`${userAction} ${userItem}...`, progress);
}
);
} finally {
safeToLeave = true;
}
return `Flashed ${latestZip} to device.`;
}
@ -299,4 +311,12 @@ if ("usb" in navigator) {
console.log("WebUSB unavailable");
}
// This will create an alert box to stop the user from leaving the page during actions
window.addEventListener("beforeunload", event => {
if (!safeToLeave) {
console.log("User tried to leave the page whilst unsafe to leave!");
event.returnValue = "";
}
});
// @license-end