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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| import { makeCapTP } from '@endo/captp'; | ||
| import { E } from '@endo/eventual-send'; | ||
|
|
||
| export const bridgeStorageMessages = bridge => { | ||
| /** @type {Map<string,[ReturnType<typeof makeCapTP>, number]>} */ | ||
| const dappToConn = new Map(); | ||
|
|
||
| const handleStorageMessage = (key, newValue) => { | ||
| const keyParts = JSON.parse(key); | ||
| assert(Array.isArray(keyParts)); | ||
| const [tag, origin, epoch, _ix] = /** @type {unknown[]} */ (keyParts); | ||
| const payload = JSON.parse(newValue); | ||
| if (tag !== 'out' || !payload || typeof payload.type !== 'string') { | ||
| return; | ||
| } | ||
|
|
||
| const obj = { | ||
| ...payload, | ||
| dappOrigin: origin, | ||
| }; | ||
| const dappKey = JSON.stringify([origin, epoch]); | ||
| /** @type {ReturnType<typeof makeCapTP>} */ | ||
| let conn; | ||
| /** @type {number} */ | ||
| let ix; | ||
| if (dappToConn.has(dappKey)) { | ||
| [conn, ix] = dappToConn.get(dappKey) || assert.fail(); | ||
| } else { | ||
| /** @param {unknown} payloadOut */ | ||
| const send = payloadOut => { | ||
| console.debug('WalletConnect: message -> storage', payloadOut); | ||
| window.localStorage.setItem( | ||
| JSON.stringify(['in', origin, epoch, ix]), | ||
| JSON.stringify(payloadOut), | ||
| ); | ||
| ix += 1; // ISSUE: overflow? | ||
| }; | ||
| const makeBoot = () => E(bridge).getScopedBridge(origin, origin); | ||
| console.debug('new capTP connection', { origin, epoch }); | ||
| conn = makeCapTP(`from ${origin} at ${epoch}`, send, makeBoot); | ||
| ix = 0; | ||
| } | ||
| dappToConn.set(dappKey, [conn, ix + 1]); | ||
| console.debug('WalletConnect: storage -> dispatch', obj); | ||
| conn.dispatch(obj); | ||
| window.localStorage.removeItem(key); | ||
| }; | ||
|
|
||
| const storageListener = ev => { | ||
| const { key, newValue } = ev; | ||
| // removeItem causes an event where newValue is null | ||
| if (key && newValue) { | ||
| handleStorageMessage(key, newValue); | ||
| } | ||
| }; | ||
| window.addEventListener('storage', storageListener); | ||
|
|
||
| return () => { | ||
| window.removeEventListener('storage', storageListener); | ||
| for (const [conn, _ix] of dappToConn.values()) { | ||
| // @ts-expect-error capTP abort has wrong type? | ||
| conn.abort(Error('wallet connection cancelled')); | ||
| } | ||
| }; | ||
| }; |