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Triple-C/app/src-tauri/capabilities/default.json
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{
"identifier": "default",
2026-08-23 18:45:11 -07:00
"description": "Default capabilities for Triple-C. Every entry here is an IPC command a compromised webview can call directly, so the set is an enumeration of what `app/src` actually invokes — verified against tauri 2.11.0's `PLUGINS` table in `build.rs`, not assumed from a plugin's `default` set. `core:default` in particular is NOT used: it is an alias for `core:{path,event,window,webview,app,image,resources,menu,tray}:default`, and `core:image:default` carries `allow-from-path`, whose handler (`tauri-2.11.0/src/image/plugin.rs:41` → `src/image/mod.rs:96`) is a bare `std::fs::read(path)` with no scope mechanism of any kind. Nothing imports `@tauri-apps/api/image`, so the whole plugin is dropped rather than scoped — there is nothing to scope it with. `core:menu` and `core:tray` are dropped for the same reason (no menu, no tray icon); `core:window` and `core:path` because nothing imports them; `core:resources:allow-close` because no frontend value is a `Resource`; and `core:event`'s `allow-emit`/`allow-emit-to` because the frontend only ever *listens* — every emit in this app originates in Rust. Three notes on what is deliberately kept or accepted: (1) `core:webview:allow-internal-toggle-devtools` is not called by `app/src` at all — it is called by Tauri's own injected `toggle-devtools.js`, which binds Ctrl/Cmd+Shift+I. Both that script and the command behind it are `#[cfg(any(debug_assertions, feature = \"devtools\"))]`, so this grant is a `tauri dev` convenience that does not exist in a release bundle. (2) `opener:allow-open-url` cannot be narrowed by host. `TerminalView`'s `WebLinksAddon` opens links Claude printed inside the container, which are arbitrary by construction, so a host allowlist here would delete the feature rather than bound it. What *is* bounded: `opener:default` is not used, so `open_path` and `reveal_item_in_dir` are absent; the scope's two entries restrict the scheme to http/https (`file:`, `mailto:`, `tel:`, `smb:` are all refused by `Scope::is_url_allowed`); and because each entry leaves `app` at its serde default of `Application::Default`, which matches only `with == None`, `openUrl(url, \"/bin/sh\")` is refused — the `with` argument is not a usable exec primitive. The call sites re-validate through `sanitizeRelayUrl` (scheme allowlist, no embedded credentials, length cap) before anything reaches the opener. Accepted residual risk: a compromised webview can make the OS open an attacker-chosen http(s) URL, which is an outbound channel. Recorded here rather than fixed. (3) `drag:allow-start-drag` is **gone**, together with the OS drag-out it existed for. It could not be scoped — `tauri-plugin-drag` takes the item paths from the caller and has no scope mechanism, so a compromised webview could call `startDrag({ item: ['~/.ssh/id_rsa'] })` against any host path the user can read — and it was carried as an accepted residual risk for one gesture. Drag-out was held back for separate hardening (see branch `hold/disk-and-dragout`) and the plugin is no longer a dependency. Getting a file *out* of a container is now \"Back up container\" on the project's Overview tab, which archives a tree through the Docker API and never touches this permission; the Files tab is browse, view and rename only. An earlier version of this sentence pointed at a \"Save to host…\" action, which was removed in the same round that removed drag-out — this file is the reviewed threat model of record, so a stale reference here is worse than none. Note that dragging files *into* the app is unaffected: `dragDropEnabled` and `onDragDropEvent` are core webview behaviour and need no grant. Historical note kept because it is easy to re-introduce: the `store:*` grants were removed — nothing in `app/src` uses `@tauri-apps/plugin-store`, and the plugin's `resolve_store_path` is a `PathBuf::push` against AppData, which `push` discards outright when handed an absolute path, so the grant was an arbitrary host-file read/write primitive (`plugin:store|load` + `set` + `save` on `~/.claude/settings.json` is host code execution
"windows": ["main"],
"permissions": [
"core:event:allow-listen",
"core:event:allow-unlisten",
"core:webview:allow-internal-toggle-devtools",
"dialog:allow-open",
"dialog:allow-save",
{
"identifier": "opener:allow-open-url",
"allow": [{ "url": "http://*" }, { "url": "https://*" }]
}
]
}