mirror of
https://github.com/diegosouzapw/OmniRoute.git
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323 lines
14 KiB
TypeScript
323 lines
14 KiB
TypeScript
import { describe, test } from "node:test";
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import assert from "node:assert/strict";
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import {
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serializeToolsToPrompt,
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parseToolCallsFromText,
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prepareToolMessages,
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buildToolAwareResult,
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getToolNonce,
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} from "../../open-sse/translator/webTools.ts";
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// Regression coverage for the shared web-cookie tool-call translation helpers
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// (#3259). These functions back tool-calling for the 8 pure-API web executors
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// (adapta-web, blackbox-web, duckduckgo-web, inner-ai, muse-spark-web,
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// perplexity-web and t3-chat-web), so the translation contract must hold.
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//
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// #9343 — bare-JSON tools are disabled; only explicit <tool> or <tool_call>
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// envelopes with nonce binding are accepted.
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const WEATHER_TOOL = [
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{
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type: "function",
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function: {
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name: "get_weather",
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description: "Get the weather for a city",
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parameters: { type: "object", properties: { city: { type: "string" } } },
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},
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},
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];
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// Retrieve the nonce generated by serializeToolsToPrompt for the WEATHER_TOOL
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// array so tests can embed it in their <tool> blocks.
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function weatherNonce(): string {
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// serializeToolsToPrompt stores the nonce in a WeakMap keyed on the tools array.
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// Get it here — must be called after the first serialization call.
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return getToolNonce(WEATHER_TOOL);
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}
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describe("webTools — serializeToolsToPrompt", () => {
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test("returns empty string when there are no tools", () => {
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assert.equal(serializeToolsToPrompt([]), "");
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assert.equal(serializeToolsToPrompt(undefined), "");
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});
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test("lists each tool and explains the <tool> block contract with nonce binding", () => {
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const prompt = serializeToolsToPrompt(WEATHER_TOOL);
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assert.ok(prompt.includes("Available tools:"));
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assert.ok(prompt.includes("- get_weather: Get the weather for a city"));
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assert.ok(prompt.includes("<tool>"), "must teach the <tool> wrapper contract");
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assert.ok(prompt.includes("_nonce"), "must include nonce binding instructions");
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});
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});
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describe("webTools — parseToolCallsFromText", () => {
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test("parses a <tool> block into OpenAI tool_calls and strips it from content", () => {
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// Must include the nonce binding that serializeToolsToPrompt generated.
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const nonce = weatherNonce();
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const text = `Sure, let me check.\n<tool>{"name": "get_weather", "arguments": {"city": "SP"}, "_nonce": "${nonce}"}</tool>`;
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.ok(toolCalls && toolCalls.length === 1, "one tool call expected");
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assert.equal(toolCalls[0].function.name, "get_weather");
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assert.equal(
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typeof toolCalls[0].function.arguments,
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"string",
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"arguments must be a JSON string"
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);
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assert.deepEqual(JSON.parse(toolCalls[0].function.arguments), { city: "SP" });
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assert.ok(!content.includes("<tool>"), "the <tool> block must be stripped from content");
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});
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test("returns null tool calls for plain text with no tool block", () => {
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const { content, toolCalls } = parseToolCallsFromText(
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"just a normal answer",
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"call",
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WEATHER_TOOL
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);
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assert.equal(toolCalls, null);
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assert.equal(content, "just a normal answer");
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});
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// ── SECURITY HARDENING (#9343) ──────────────────────────────────────────────
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test("does NOT promote bare JSON to tool_calls even when tools are requested", () => {
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const bare = '{"name": "get_weather", "arguments": {"city": "RJ"}}';
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// Bare JSON must NOT be promoted — only explicit <tool> or <tool_call> blocks
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// with nonce binding are accepted.
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const withTools = parseToolCallsFromText(bare, "call", WEATHER_TOOL);
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assert.equal(withTools.toolCalls, null, "bare JSON must not be parsed with tools[] set");
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assert.equal(withTools.content, bare, "bare JSON must be preserved as content text");
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const withoutTools = parseToolCallsFromText(bare, "call");
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assert.equal(
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withoutTools.toolCalls,
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null,
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"bare JSON must not be parsed without a tools[] set"
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);
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assert.equal(withoutTools.content, bare, "bare JSON must be preserved as content text");
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});
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test("does NOT promote code-fenced JSON with tool shape to tool_calls", () => {
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const text = [
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"Here is an example JSON:",
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"```json",
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'{"name": "get_weather", "arguments": {"city": "NY"}}',
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"```",
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"This is just an example, not a real call.",
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].join("\n");
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.equal(toolCalls, null, "code-fenced JSON must not be promoted to tool_calls");
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assert.equal(content, text, "code-fenced JSON must be preserved as content text");
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});
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test("does NOT promote JSON in explanatory prose with tool shape to tool_calls", () => {
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// A realistic scenario: the model describes a tool it COULD call rather than
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// actually emitting a tool call, using JSON inline to illustrate.
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const text = [
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"Based on the user request, I could call the weather tool.",
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'The arguments object would look like: {"name": "get_weather", "arguments": {"city": "Tokyo"}}',
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"Let me proceed with the normal answer instead.",
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].join("\n");
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.equal(toolCalls, null, "prose JSON must not be promoted to tool_calls");
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assert.equal(content, text, "prose JSON must be preserved as content text");
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});
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test("rejects <tool> block with wrong nonce (copy-attack prevention)", () => {
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// The attacker copies a <tool> block into their message. The model echoes it
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// without the correct nonce — the parser must reject it.
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const text =
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'<tool>{"name": "get_weather", "arguments": {"city": "Paris"}, "_nonce": "attacker-nonce"}</tool>';
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.equal(toolCalls, null, "wrong nonce must reject the tool call");
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assert.ok(content.includes("<tool>"), "rejected tool block must remain in content");
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});
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test("tolerates <tool> block with missing nonce (backward compatibility)", () => {
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// Models that don't (yet) follow the nonce instruction should still have their
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// tool calls accepted. The nonce check only rejects when _nonce is present but wrong.
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const text = '<tool>{"name": "get_weather", "arguments": {"city": "Berlin"}}</tool>';
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.ok(toolCalls && toolCalls.length === 1, "missing nonce must be tolerated");
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assert.equal(toolCalls[0].function.name, "get_weather");
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assert.ok(!content.includes("<tool>"), "the <tool> block must be stripped from content");
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});
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test("accepts <tool_call> block with correct nonce", () => {
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const nonce = weatherNonce();
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const text = `<tool_call>{"name": "get_weather", "arguments": {"city": "London"}, "_nonce": "${nonce}"}</tool_call>`;
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const { content, toolCalls } = parseToolCallsFromText(text, "call", WEATHER_TOOL);
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assert.ok(toolCalls && toolCalls.length === 1, "one tool call expected");
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assert.equal(toolCalls[0].function.name, "get_weather");
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assert.ok(!content.includes("<tool_call>"), "the <tool_call> block must be stripped");
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});
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});
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describe("webTools — prepareToolMessages", () => {
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test("appends the contract as a trailing system message plus a user-suffix reminder", () => {
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const messages = [{ role: "user", content: "weather in SP?" }];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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assert.equal(result.hasTools, true);
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assert.equal(result.effectiveMessages.length, messages.length + 1);
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const contractMsg = result.effectiveMessages[result.effectiveMessages.length - 1];
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assert.equal(contractMsg.role, "system");
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assert.ok(String(contractMsg.content).includes("get_weather"));
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const userMsg = result.effectiveMessages[0];
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assert.equal(userMsg.role, "user");
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assert.ok(String(userMsg.content).startsWith("weather in SP?"));
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assert.ok(String(userMsg.content).includes("Client protocol reminder"));
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assert.ok(String(userMsg.content).includes("get_weather"));
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// the original messages array must not be mutated
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assert.equal(messages[0].content, "weather in SP?");
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});
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test("passes messages through untouched when there are no tools", () => {
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const messages = [{ role: "user", content: "hi" }];
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const result = prepareToolMessages({}, messages);
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assert.equal(result.hasTools, false);
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assert.equal(result.effectiveMessages, messages);
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});
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test("passes messages through untouched for an empty tools array", () => {
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const messages = [{ role: "user", content: "hi" }];
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const result = prepareToolMessages({ tools: [] }, messages);
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assert.equal(result.hasTools, false);
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assert.equal(result.effectiveMessages, messages);
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});
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test("appends the full contract as a trailing system message after a multi-turn history", () => {
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const messages = [
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{ role: "system", content: "You are a helpful assistant." },
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{ role: "user", content: "first question" },
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{ role: "assistant", content: "first answer" },
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{ role: "user", content: "weather in Tokyo?" },
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];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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assert.equal(result.hasTools, true);
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assert.equal(result.effectiveMessages.length, messages.length + 1);
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const contractMsg = result.effectiveMessages[result.effectiveMessages.length - 1];
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assert.equal(contractMsg.role, "system");
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assert.ok(String(contractMsg.content).includes("Available tools:"));
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assert.ok(String(contractMsg.content).includes("- get_weather"));
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// The contract must be appended AFTER the client messages (folds to the tail
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// of the folded system block), never prepended to the head. The latest user
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// turn still carries its own short reminder.
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assert.equal(result.effectiveMessages[3].role, "user");
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assert.ok(String(result.effectiveMessages[3].content).startsWith("weather in Tokyo?"));
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});
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test("adds the reminder only to the latest user message, leaving earlier turns intact", () => {
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const messages = [
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{ role: "user", content: "first question" },
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{ role: "assistant", content: "first answer" },
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{ role: "user", content: "weather in Paris?" },
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];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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assert.equal(result.effectiveMessages[0].content, "first question");
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assert.equal(result.effectiveMessages[1].content, "first answer");
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const latestContent = String(result.effectiveMessages[2].content);
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assert.ok(latestContent.startsWith("weather in Paris?\n\n[Client protocol reminder"));
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assert.ok(latestContent.includes("client-tool contract in the system instructions"));
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assert.ok(latestContent.endsWith("block protocol: get_weather.]"));
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// the original array and its objects must not be mutated
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assert.equal(messages[2].content, "weather in Paris?");
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});
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test("names every tool in the reminder for a multi-tool set, comma-separated", () => {
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const multiTools = [
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...WEATHER_TOOL,
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{
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type: "function",
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function: {
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name: "get_time",
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description: "Get the current time",
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parameters: { type: "object", properties: {} },
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},
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},
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];
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const messages = [{ role: "user", content: "now" }];
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const result = prepareToolMessages({ tools: multiTools }, messages);
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assert.ok(String(result.effectiveMessages[0].content).includes("get_weather, get_time"));
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});
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test("does not inject a reminder when no user message is present, and still appends the contract", () => {
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const messages = [{ role: "system", content: "You are a helpful assistant." }];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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assert.equal(result.hasTools, true);
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assert.equal(result.effectiveMessages.length, 2);
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assert.equal(result.effectiveMessages[0].content, "You are a helpful assistant.");
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assert.equal(result.effectiveMessages[1].role, "system");
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assert.ok(String(result.effectiveMessages[1].content).includes("Available tools:"));
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});
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test("appends the reminder as a text part when the latest user content is an array", () => {
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const messages = [{ role: "user", content: [{ type: "text", text: "weather?" }] }];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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const content = result.effectiveMessages[0].content as Array<{ type: string; text: string }>;
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assert.equal(content.length, 2);
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assert.equal(content[0].text, "weather?");
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assert.equal(content[1].type, "text");
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assert.ok(content[1].text.includes("Client protocol reminder"));
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// the original content array must not be mutated
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assert.equal((messages[0].content as Array<{ type: string; text: string }>).length, 1);
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});
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test("preserves every original message when tools are present", () => {
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const messages = [
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{ role: "system", content: "sys" },
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{ role: "user", content: "u1" },
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{ role: "assistant", content: "a1" },
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{ role: "user", content: "u2" },
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];
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const result = prepareToolMessages({ tools: WEATHER_TOOL }, messages);
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assert.equal(messages.length, 4);
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assert.equal(messages[0].content, "sys");
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assert.equal(messages[1].content, "u1");
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assert.equal(messages[2].content, "a1");
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assert.equal(messages[3].content, "u2");
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assert.equal(result.effectiveMessages.length, 5);
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});
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});
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describe("webTools — buildToolAwareResult", () => {
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test("finish_reason is tool_calls when a call is parsed, else stop", () => {
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// The nonce is auto-looked up from the WeakMap via requestedTools reference.
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const nonce = weatherNonce();
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const called = buildToolAwareResult(
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`<tool>{"name": "get_weather", "arguments": {}, "_nonce": "${nonce}"}</tool>`,
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WEATHER_TOOL
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);
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assert.equal(called.finishReason, "tool_calls");
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assert.ok(called.toolCalls && called.toolCalls.length === 1);
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const plain = buildToolAwareResult("no tools here", WEATHER_TOOL);
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assert.equal(plain.finishReason, "stop");
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assert.equal(plain.toolCalls, null);
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assert.equal(plain.content, "no tools here");
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});
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test("accepts tool call without nonce via buildToolAwareResult (backward compatible)", () => {
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const plain = buildToolAwareResult(
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'<tool>{"name": "get_weather", "arguments": {}}</tool>',
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WEATHER_TOOL
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);
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assert.equal(plain.finishReason, "tool_calls");
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assert.ok(plain.toolCalls && plain.toolCalls.length === 1);
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});
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});
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