28 lines
1.7 KiB
JavaScript
28 lines
1.7 KiB
JavaScript
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// bcnr-preload.js — session-wide preload that installs `window.bcnr` on every
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// page (regular tabs, popups, chrome/settings/etc). Reads only — no signing,
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// no wallet unlock, no permission prompts. These four methods query the same
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// resolver Theseus already runs for its address bar; nothing about the local
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// user leaks, so no origin gate is needed for this surface.
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//
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// Sequencing: registered via `session.defaultSession.setPreloads([...])` in
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// main.js at whenReady, which runs BEFORE per-WebContentsView preloads (home,
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// settings, popover, etc.), so those preloads still install their own bridges
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// on top of `window.bcnr`. See DESIGN-integrated-wallet.md §3 for the full
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// API surface.
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const { contextBridge, ipcRenderer } = require("electron");
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// Every method returns a Promise; a name that fails to resolve or isn't
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// registered comes back as `null` (not an error) so page code can treat
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// "no such name" as data, not an exception. `getBcnrTlds` always returns
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// an array — even the seed ["bch"] before the on-chain list has landed.
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contextBridge.exposeInMainWorld("bcnr", {
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resolveName: (name) => ipcRenderer.invoke("bcnr:resolveName", name),
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isRegistered: (name) => ipcRenderer.invoke("bcnr:isRegistered", name),
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getBcnrTlds: () => ipcRenderer.invoke("bcnr:getBcnrTlds"),
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getRecordVersion: (name) => ipcRenderer.invoke("bcnr:getRecordVersion", name),
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// Diagnostic — the eTLD+1 permission origin Theseus computes for THIS page.
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// dApp devs use this to see how their subdomains bucket under one grant.
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// Returns null for opaque origins (data:, blob:) which never hold grants.
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getOrigin: () => ipcRenderer.invoke("bcnr:getOrigin"),
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});
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