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NetMesh/electron/bridges/mcpServerBridge.attachments.test.cjs

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const test = require("node:test");
const assert = require("node:assert/strict");
const fs = require("node:fs");
const os = require("node:os");
const path = require("node:path");
const bridge = require("./mcpServerBridge.cjs");
test("registered chat attachments can be listed and read by path or filename", async (t) => {
t.after(() => bridge.cleanup());
bridge.updateAttachmentMetadata([
{
filename: "note.txt",
mediaType: "text/plain",
filePath: "/tmp/netcatty-note.txt",
base64Data: Buffer.from("hello attachment").toString("base64"),
},
], "chat-a");
const listed = bridge.handleListAttachments({ chatSessionId: "chat-a" });
assert.equal(listed.ok, true);
assert.deepEqual(listed.attachments, [{
filename: "note.txt",
mediaType: "text/plain",
filePath: "/tmp/netcatty-note.txt",
sizeBytes: 16,
}]);
const byPath = bridge.handleReadAttachment({
chatSessionId: "chat-a",
filePath: "/tmp/netcatty-note.txt",
});
assert.equal(byPath.ok, true);
assert.equal(byPath.text, "hello attachment");
const byName = bridge.handleReadAttachment({
chatSessionId: "chat-a",
filename: "note.txt",
});
assert.equal(byName.ok, true);
assert.equal(byName.base64Data, Buffer.from("hello attachment").toString("base64"));
});
test("attachment reads reject unregistered local paths", async (t) => {
const dir = fs.mkdtempSync(path.join(os.tmpdir(), "netcatty-attachment-test-"));
const secretPath = path.join(dir, "secret.txt");
fs.writeFileSync(secretPath, "secret");
t.after(() => {
bridge.cleanup();
fs.rmSync(dir, { recursive: true, force: true });
});
bridge.updateAttachmentMetadata([
{
filename: "allowed.txt",
mediaType: "text/plain",
filePath: path.join(dir, "allowed.txt"),
base64Data: Buffer.from("allowed").toString("base64"),
},
], "chat-a");
const result = bridge.handleReadAttachment({
chatSessionId: "chat-a",
filePath: secretPath,
});
assert.equal(result.ok, false);
assert.match(result.error, /not registered/i);
});