mirror of
https://github.com/lhns/steam-frame-nix.git
synced 2026-10-06 06:00:22 +02:00
Pierre Kisters
514f073a6e
down:/up: were checked with MODKEY[arg], which inherited names like constructor or toString pass (xdotool then got a junk key name). The check is now allowedMod() in allowlist.mjs, covered by its test.
32 lines
1.6 KiB
JavaScript
32 lines
1.6 KiB
JavaScript
// Allowlist of xdotool-helper.mjs: requests come from Steam's UI JS, so the
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// helper must not be able to type ASCII text or press Enter on its behalf.
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// Accepted:
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// key:<combo> the extra keys (Esc, Del, Home, End, PgUp/PgDn, arrows,
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// F1-F12 from keyboard.vr.functionKeys), optionally with
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// modifiers; ctrl and/or alt (+ optional
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// shift) with one key; or shift+Tab
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// type:<char> one character Steam's key emulation can't produce: non-ASCII
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// (äöü߀§°´…) or | @ { [ ] } \ ~ ^ `
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// down:<mod> / up:<mod> hold/release ctrl or alt
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const SPECIAL = new Set(['Escape', 'Delete', 'Home', 'End', 'Prior', 'Next', 'Left', 'Right', 'Up', 'Down',
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...Array.from({ length: 12 }, (_, i) => `F${i + 1}`)]);
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const KEY = /^([a-z0-9]|space|BackSpace|Tab|period|comma|minus|plus|numbersign|less|slash|ssharp|udiaeresis|odiaeresis|adiaeresis)$/;
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export function allowedCombo(combo) {
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const parts = combo.split('+');
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const key = parts.pop();
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const mods = new Set(parts);
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if (parts.length !== mods.size || ![...mods].every((m) => ['ctrl', 'alt', 'shift'].includes(m))) return false;
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if (SPECIAL.has(key)) return true;
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if (key === 'Tab' && mods.size === 1 && mods.has('shift')) return true; // backwards focus
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return KEY.test(key) && (mods.has('ctrl') || mods.has('alt'));
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}
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export function allowedChar(c) {
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if ([...c].length !== 1) return false;
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const cp = c.codePointAt(0);
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return (cp > 0xa0 && !/\s|\p{C}/u.test(c)) || '|@{[]}\\~^`'.includes(c);
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}
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export const allowedMod = (m) => m === 'ctrl' || m === 'alt';
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