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TabFS
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extension: add TAB/evals!

This commit is contained in:
Omar Rizwan 2021-02-22 15:33:31 -08:00
parent 5c3e851baf
commit dffc41a3e1
1 changed files with 35 additions and 3 deletions
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38
extension/background.js
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@ -327,6 +327,41 @@ router["/tabs/by-id/*/execute-script"] = {
},
async truncate({path, size}) { return {}; }
};
(function() {
let evals = {};
router["/tabs/by-id/*/evals"] = {
async readdir({path}) {
const tabId = parseInt(pathComponent(path, -2));
return { entries: [".", "..", ...Object.keys(evals[tabId] || [])] };
},
getattr() {
return {
st_mode: unix.S_IFDIR | 0777, // writable so you can create evals
st_nlink: 3,
st_size: 0,
};
},
};
router["/tabs/by-id/*/evals/*"] = {
// NOTE: eval runs in extension's content script, not in original page JS context
async create({path, mode}) {
const [tabId, expr] = [parseInt(pathComponent(path, -3)), pathComponent(path, -1)];
evals[tabId] = evals[tabId] || {};
evals[tabId][expr] = async function() {
return (await browser.tabs.executeScript(tabId, {code: expr}))[0];
};
return {};
},
...defineFile(async path => {
const [tabId, expr] = [parseInt(pathComponent(path, -3)), pathComponent(path, -1)];
if (!evals[tabId] || !(expr in evals[tabId])) { throw new UnixError(unix.ENOENT); }
return JSON.stringify(await evals[tabId][expr]()) + '\n';
})
};
// TODO: allow deletion of evals
})();
// TODO: imports
// (function() {
// const imports = {};
@ -340,9 +375,6 @@ router["/tabs/by-id/*/execute-script"] = {
// }
// };
// })();
// TODO: watches
// router["/tabs/by-id/*/watches"] = {
// };
router["/tabs/by-id/*/window"] = {
// a symbolic link to /windows/[id for this window]
async readlink({path}) {