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g1t/services/runner/src/egress.test.ts

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Agents get guardrails, run credentials, an audit log, a context hub, repository instructions and mentions; security upkeep; snake_case API1import assert from "node:assert/strict";
2import { test } from "node:test";
3
4import { allows, blockedStep, harnessEnv, newlyBlocked, normalizeHost, refusal, sandboxHosts, timeCapMessage } from "./egress.ts";
5
6const policy = ["g1t.sh", "api.g1t.sh", "registry.npmjs.org", "*.example.com"];
7
8test("listed hosts are allowed and nothing else is", () => {
9 assert.equal(allows(policy, "registry.npmjs.org"), true);
10 assert.equal(allows(policy, "api.g1t.sh"), true);
11 assert.equal(allows(policy, "evil.com"), false);
12 assert.equal(allows(policy, "registry.npmjs.org.evil.com"), false);
13 assert.equal(allows(policy, "npmjs.org"), false);
14 assert.equal(allows(policy, ""), false);
15 assert.equal(allows([], "api.g1t.sh"), false);
16});
17
18test("hosts are compared without case, port or trailing dot", () => {
19 assert.equal(allows(policy, "Registry.NPMJS.org:443"), true);
20 assert.equal(allows(policy, "registry.npmjs.org."), true);
21 assert.equal(normalizeHost("[::1]:8080"), "[::1]");
22});
23
24test("a wildcard covers subdomains at any depth, not the domain itself", () => {
25 assert.equal(allows(policy, "api.example.com"), true);
26 assert.equal(allows(policy, "a.b.example.com"), true);
27 assert.equal(allows(policy, "example.com"), false);
28 assert.equal(allows(policy, "badexample.com"), false);
29});
30
31test("the model and g1t's tools are always reachable", () => {
32 const hosts = sandboxHosts(
33 ["registry.npmjs.org"],
34 { MODELS_URL: "https://models.g1t.sh" },
35 { G1T_API: "https://api.g1t.sh", GIT_REMOTE: "https://g1t.sh/acme/site.git", ANTHROPIC_BASE_URL: "https://models.g1t.sh/anthropic" },
36 );
37 for (const host of ["registry.npmjs.org", "models.g1t.sh", "api.g1t.sh", "g1t.sh"]) {
38 assert.ok(hosts.includes(host), host);
39 }
40 assert.ok(!hosts.includes("gateway.ai.cloudflare.com"));
41});
42
43test("without the model proxy, the gateway or the provider is added", () => {
44 assert.ok(sandboxHosts([], { AI_GATEWAY_ID: "g1t" }, {}).includes("gateway.ai.cloudflare.com"));
45 assert.ok(sandboxHosts([], { ANTHROPIC_API_KEY: "k" }, {}).includes("api.anthropic.com"));
46 assert.deepEqual(sandboxHosts([], {}, { G1T_API: "not a url" }), []);
47});
48
49test("a refusal says why and how to allow it", async () => {
50 const response = refusal("Evil.com:443");
51 assert.equal(response.status, 403);
52 assert.equal(response.headers.get("x-g1t-guardrails"), "blocked");
53 const text = await response.text();
54 assert.match(text, /evil\.com is not on this project's allowed domains/);
55 assert.match(text, /Settings, Guardrails/);
56 assert.equal(blockedStep("Evil.com"), "Blocked: evil.com (not an allowed domain)");
57});
58
59test("the harness is told the run's rules, caps and branch", () => {
60 const guard = {
61 policy: {
62 restrictNetwork: true,
63 registries: [],
64 domains: [],
65 hosts: [],
66 rules: { sudo: true },
67 deny: ["Bash(kubectl:*)"],
68 budgetUsd: 5,
69 minutes: { implement: 90 },
70 },
71 minutes: 90,
72 };
73 const restricted = harnessEnv(guard, { UPSTREAM_BRANCH: "trunk" }, true);
74 assert.deepEqual(JSON.parse(restricted.GUARDRAILS), {
75 rules: { sudo: true },
76 deny: ["Bash(kubectl:*)"],
77 budgetUsd: 5,
78 minutes: 90,
79 restrictNetwork: true,
80 defaultBranch: "trunk",
81 });
82 assert.equal(restricted.NODE_EXTRA_CA_CERTS, "/etc/cloudflare/certs/cloudflare-containers-ca.crt");
83 // Open, as the operator's switch makes it: no certificate to trust.
84 const open = harnessEnv(guard, {}, false);
85 assert.equal(JSON.parse(open.GUARDRAILS).restrictNetwork, false);
86 assert.equal(open.NODE_EXTRA_CA_CERTS, undefined);
87});
88
89test("each refused host is one step, up to a limit", () => {
90 const first = newlyBlocked([], "evil.com");
91 assert.deepEqual(first, { step: "Blocked: evil.com (not an allowed domain)", seen: ["Blocked: evil.com (not an allowed domain)"] });
92 assert.equal(newlyBlocked(first!.seen, "EVIL.com:443"), null);
93 const full = Array.from({ length: 25 }, (_, i) => `Blocked: h${i}.com (not an allowed domain)`);
94 assert.equal(newlyBlocked(full, "another.com"), null);
95 assert.equal(timeCapMessage(1), "Stopped: it reached its time cap of 1 minute.");
96});