fix(mcp): accept only direct local requests at /mcp

The /mcp route now applies the same proxy and sharing checks as Provider
Settings: requests carrying forwarding headers, or arriving while launcher
sharing is on, are refused. The Host must name the port the request reached
and a browser Origin must match that host exactly. The proxy and sharing
checks move into shared helpers in keySetupCore; Provider Settings behaves
as before.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
This commit is contained in:
Sameh KhamisandClaude Opus 5.5 committed 2026-10-02 19:47:37 -07:00
1 parent f7d3db5875
commit fec93aa817
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@@ -241,8 +241,10 @@ claude mcp add --transport http gods-eye-view http://localhost:4173/mcp
```
The route accepts only requests from this machine that name a loopback host
and, when a browser sends an `Origin`, come from a loopback origin. This is
local transport safety, not authentication. The
on the port they reached and, when a browser sends an `Origin`, come from
that same host. It refuses requests a proxy forwarded and refuses all
requests while launcher sharing is on. This is local transport safety, not
authentication. The
local server makes no requests other than to the app's `/api` routes and the
public feeds the sources already use.