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clawdbot/src/infra/bonjour-discovery.test.ts
2026-01-09 14:56:01 +01:00

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import { describe, expect, it, vi } from "vitest";
import type { runCommandWithTimeout } from "../process/exec.js";
import { discoverGatewayBeacons } from "./bonjour-discovery.js";
import { WIDE_AREA_DISCOVERY_DOMAIN } from "./widearea-dns.js";
describe("bonjour-discovery", () => {
it("discovers beacons on darwin across local + wide-area domains", async () => {
const calls: Array<{ argv: string[]; timeoutMs: number }> = [];
const studioInstance = "Peters Mac Studio Bridge";
const run = vi.fn(
async (argv: string[], options: { timeoutMs: number }) => {
calls.push({ argv, timeoutMs: options.timeoutMs });
const domain = argv[3] ?? "";
if (argv[0] === "dns-sd" && argv[1] === "-B") {
if (domain === "local.") {
return {
stdout: [
"Add 2 3 local. _clawdbot-bridge._tcp. Peter\\226\\128\\153s Mac Studio Bridge",
"Add 2 3 local. _clawdbot-bridge._tcp. Laptop Bridge",
"",
].join("\n"),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (domain === WIDE_AREA_DISCOVERY_DOMAIN) {
return {
stdout: [
`Add 2 3 ${WIDE_AREA_DISCOVERY_DOMAIN} _clawdbot-bridge._tcp. Tailnet Bridge`,
"",
].join("\n"),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
}
if (argv[0] === "dns-sd" && argv[1] === "-L") {
const instance = argv[2] ?? "";
const host =
instance === studioInstance
? "studio.local"
: instance === "Laptop Bridge"
? "laptop.local"
: "tailnet.local";
const tailnetDns =
instance === "Tailnet Bridge" ? "studio.tailnet.ts.net" : "";
const displayName =
instance === studioInstance
? "Peters\\032Mac\\032Studio"
: instance.replace(" Bridge", "");
const txtParts = [
"txtvers=1",
`displayName=${displayName}`,
`lanHost=${host}`,
"gatewayPort=18789",
"bridgePort=18790",
"sshPort=22",
tailnetDns ? `tailnetDns=${tailnetDns}` : null,
].filter((v): v is string => Boolean(v));
return {
stdout: [
`${instance}._clawdbot-bridge._tcp. can be reached at ${host}:18790`,
txtParts.join(" "),
"",
].join("\n"),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
throw new Error(`unexpected argv: ${argv.join(" ")}`);
},
);
const beacons = await discoverGatewayBeacons({
platform: "darwin",
timeoutMs: 1234,
run: run as unknown as typeof runCommandWithTimeout,
});
expect(beacons).toHaveLength(3);
expect(beacons).toEqual(
expect.arrayContaining([
expect.objectContaining({
instanceName: studioInstance,
displayName: "Peters Mac Studio",
}),
]),
);
expect(beacons.map((b) => b.domain)).toEqual(
expect.arrayContaining(["local.", WIDE_AREA_DISCOVERY_DOMAIN]),
);
const browseCalls = calls.filter(
(c) => c.argv[0] === "dns-sd" && c.argv[1] === "-B",
);
expect(browseCalls.map((c) => c.argv[3])).toEqual(
expect.arrayContaining(["local.", WIDE_AREA_DISCOVERY_DOMAIN]),
);
expect(browseCalls.every((c) => c.timeoutMs === 1234)).toBe(true);
});
it("decodes dns-sd octal escapes in TXT displayName", async () => {
const run = vi.fn(
async (argv: string[], options: { timeoutMs: number }) => {
if (options.timeoutMs < 0) throw new Error("invalid timeout");
const domain = argv[3] ?? "";
if (argv[0] === "dns-sd" && argv[1] === "-B" && domain === "local.") {
return {
stdout: [
"Add 2 3 local. _clawdbot-bridge._tcp. Studio Bridge",
"",
].join("\n"),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (argv[0] === "dns-sd" && argv[1] === "-L") {
return {
stdout: [
"Studio Bridge._clawdbot-bridge._tcp. can be reached at studio.local:18790",
"txtvers=1 displayName=Peter\\226\\128\\153s\\032Mac\\032Studio lanHost=studio.local gatewayPort=18789 bridgePort=18790 sshPort=22",
"",
].join("\n"),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
return {
stdout: "",
stderr: "",
code: 0,
signal: null,
killed: false,
};
},
);
const beacons = await discoverGatewayBeacons({
platform: "darwin",
timeoutMs: 800,
domains: ["local."],
run: run as unknown as typeof runCommandWithTimeout,
});
expect(beacons).toEqual([
expect.objectContaining({
domain: "local.",
instanceName: "Studio Bridge",
displayName: "Peters Mac Studio",
txt: expect.objectContaining({
displayName: "Peters Mac Studio",
}),
}),
]);
});
it("falls back to tailnet DNS probing for wide-area when split DNS is not configured", async () => {
const calls: Array<{ argv: string[]; timeoutMs: number }> = [];
const run = vi.fn(
async (argv: string[], options: { timeoutMs: number }) => {
calls.push({ argv, timeoutMs: options.timeoutMs });
const cmd = argv[0];
if (cmd === "dns-sd" && argv[1] === "-B") {
return {
stdout: "",
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (
cmd === "tailscale" &&
argv[1] === "status" &&
argv[2] === "--json"
) {
return {
stdout: JSON.stringify({
Self: { TailscaleIPs: ["100.69.232.64"] },
Peer: {
"peer-1": { TailscaleIPs: ["100.123.224.76"] },
},
}),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (cmd === "dig") {
const at = argv.find((a) => a.startsWith("@")) ?? "";
const server = at.replace(/^@/, "");
const qname = argv[argv.length - 2] ?? "";
const qtype = argv[argv.length - 1] ?? "";
if (
server === "100.123.224.76" &&
qtype === "PTR" &&
qname === "_clawdbot-bridge._tcp.clawdbot.internal"
) {
return {
stdout: `studio-bridge._clawdbot-bridge._tcp.clawdbot.internal.\n`,
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (
server === "100.123.224.76" &&
qtype === "SRV" &&
qname === "studio-bridge._clawdbot-bridge._tcp.clawdbot.internal"
) {
return {
stdout: `0 0 18790 studio.clawdbot.internal.\n`,
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
if (
server === "100.123.224.76" &&
qtype === "TXT" &&
qname === "studio-bridge._clawdbot-bridge._tcp.clawdbot.internal"
) {
return {
stdout: [
`"displayName=Studio"`,
`"transport=bridge"`,
`"bridgePort=18790"`,
`"gatewayPort=18789"`,
`"sshPort=22"`,
`"tailnetDns=peters-mac-studio-1.sheep-coho.ts.net"`,
`"cliPath=/opt/homebrew/bin/clawdbot"`,
"",
].join(" "),
stderr: "",
code: 0,
signal: null,
killed: false,
};
}
}
throw new Error(`unexpected argv: ${argv.join(" ")}`);
},
);
const beacons = await discoverGatewayBeacons({
platform: "darwin",
timeoutMs: 1200,
domains: [WIDE_AREA_DISCOVERY_DOMAIN],
run: run as unknown as typeof runCommandWithTimeout,
});
expect(beacons).toEqual([
expect.objectContaining({
domain: WIDE_AREA_DISCOVERY_DOMAIN,
instanceName: "studio-bridge",
displayName: "Studio",
host: "studio.clawdbot.internal",
port: 18790,
tailnetDns: "peters-mac-studio-1.sheep-coho.ts.net",
gatewayPort: 18789,
sshPort: 22,
cliPath: "/opt/homebrew/bin/clawdbot",
}),
]);
expect(
calls.some((c) => c.argv[0] === "tailscale" && c.argv[1] === "status"),
).toBe(true);
expect(calls.some((c) => c.argv[0] === "dig")).toBe(true);
});
it("normalizes domains and respects domains override", async () => {
const calls: string[][] = [];
const run = vi.fn(async (argv: string[]) => {
calls.push(argv);
return {
stdout: "",
stderr: "",
code: 0,
signal: null,
killed: false,
};
});
await discoverGatewayBeacons({
platform: "darwin",
timeoutMs: 1,
domains: ["local", "clawdbot.internal"],
run: run as unknown as typeof runCommandWithTimeout,
});
expect(calls.filter((c) => c[1] === "-B").map((c) => c[3])).toEqual(
expect.arrayContaining(["local.", "clawdbot.internal."]),
);
calls.length = 0;
await discoverGatewayBeacons({
platform: "darwin",
timeoutMs: 1,
domains: ["local."],
run: run as unknown as typeof runCommandWithTimeout,
});
expect(calls.filter((c) => c[1] === "-B")).toHaveLength(1);
expect(calls.filter((c) => c[1] === "-B")[0]?.[3]).toBe("local.");
});
});