Schulcloud-MCP/scripts/smoke.mjs

#!/usr/bin/env node
/**
 * End-to-end smoke test: starts the HTTP server, connects a real MCP client
 * over Streamable HTTP, and exercises every tool against the live instance.
 *
 * Requires TSC_URL and TSC_JWT_COOKIE in the environment (load .env first).
 * Read-only — it never writes to Schulcloud.
 */
import { Client } from '@modelcontextprotocol/sdk/client/index.js';
import { StreamableHTTPClientTransport } from '@modelcontextprotocol/sdk/client/streamableHttp.js';
import { loadConfig } from '../dist/config.js';
import { createHttpApp } from '../dist/http/server.js';

const TOKEN = 'smoke-test-token-' + Math.random().toString(36).slice(2);
process.env.MCP_AUTH_TOKEN = TOKEN;
// The app is bound by this script on an ephemeral port, so config.port is unused.

const config = loadConfig();
const app = createHttpApp(config);
const httpServer = await new Promise((resolve) => {
	const s = app.listen(0, '127.0.0.1', () => resolve(s));
});
const { port } = httpServer.address();
const base = `http://127.0.0.1:${port}/mcp`;

let failures = 0;
const results = [];

function check(name, ok, detail) {
	results.push({ name, ok, detail });
	if (!ok) failures++;
	console.log(`${ok ? '  PASS' : '  FAIL'}  ${name}${detail ? ` — ${detail}` : ''}`);
}

// --- auth gate ---------------------------------------------------------
console.log('\n== auth ==');
{
	const res = await fetch(base, {
		method: 'POST',
		headers: { 'content-type': 'application/json' },
		body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'initialize', params: {} }),
	});
	check('rejects request with no token', res.status === 401, `got ${res.status}`);
}
{
	const res = await fetch(base, {
		method: 'POST',
		headers: { 'content-type': 'application/json', authorization: 'Bearer wrong-token' },
		body: JSON.stringify({ jsonrpc: '2.0', id: 1, method: 'initialize', params: {} }),
	});
	check('rejects wrong token', res.status === 401, `got ${res.status}`);
}
{
	const res = await fetch(`http://127.0.0.1:${port}/healthz`);
	check('healthz is open and ok', res.status === 200);
}

// --- connect -----------------------------------------------------------
console.log('\n== protocol ==');
const client = new Client({ name: 'smoke', version: '0' }, { capabilities: {} });
await client.connect(
	new StreamableHTTPClientTransport(new URL(base), {
		requestInit: { headers: { authorization: `Bearer ${TOKEN}` } },
	}),
);
check('client connected with valid token', true);

const { tools } = await client.listTools();
const names = tools.map((t) => t.name).sort();
check('tools listed', tools.length > 0, names.join(', '));
check(
	'every tool has a description and schema',
	tools.every((t) => t.description && t.inputSchema),
);

const call = async (name, args = {}) => {
	const res = await client.callTool({ name, arguments: args });
	const text = res.content.filter((c) => c.type === 'text').map((c) => c.text).join('\n');
	return { res, text, isError: res.isError === true };
};

// --- tools against the live instance -----------------------------------
console.log('\n== live tools ==');
const who = await call('whoami');
check('whoami', !who.isError && /School:/.test(who.text), who.text.split('\n')[0]);

const courses = await call('list_courses', { limit: 100 });
check('list_courses', !courses.isError && /Courses \(/.test(courses.text));
const courseIds = [...courses.text.matchAll(/\(`([0-9a-f]{24})`\)/g)].map((m) => m[1]);
check('list_courses returned usable ids', courseIds.length > 0, `${courseIds.length} courses`);

const active = await call('list_courses', { activeOnly: true });
check('list_courses activeOnly', !active.isError);

const dash = await call('get_dashboard');
check('get_dashboard', !dash.isError);

const tasks = await call('list_tasks', { scope: 'open' });
check('list_tasks open', !tasks.isError);
const taskId = tasks.text.match(/\(`([0-9a-f]{24})`\)/)?.[1];

check('list_tasks finished', !(await call('list_tasks', { scope: 'finished' })).isError);
check('list_news', !(await call('list_news')).isError);

// Walk courses until we find one with a board, to exercise the whole chain.
let boardId, fileId, lessonId, courseWithBoard;
for (const id of courseIds) {
	const course = await call('get_course', { courseId: id });
	if (course.isError) continue;
	courseWithBoard ??= id;
	const b = course.text.match(/### Boards[\s\S]*?\(`([0-9a-f]{24})`\)/)?.[1];
	const l = course.text.match(/### Topics[\s\S]*?\(`([0-9a-f]{24})`\)/)?.[1];
	lessonId ??= l;
	if (b && !boardId) boardId = b;
	if (boardId && lessonId) break;
}
check('get_course', Boolean(courseWithBoard), `first usable course ${courseWithBoard}`);
check('found a column board', Boolean(boardId), boardId);

if (boardId) {
	const board = await call('get_board', { boardId });
	check('get_board', !board.isError && /Board id:/.test(board.text));
	fileId = board.text.match(/File: \*\*[^*]+\*\* \(`([0-9a-f]{24})`/)?.[1];
	check('get_board resolved attachments', Boolean(fileId), fileId ?? 'no files on this board');
	check('get_board includeFiles=false', !(await call('get_board', { boardId, includeFiles: false })).isError);
}

if (lessonId) check('get_lesson', !(await call('get_lesson', { lessonId })).isError, lessonId);
if (taskId) {
	const task = await call('get_task', { taskId });
	check('get_task', !task.isError && /Task id:/.test(task.text), taskId);
}

// If the board had no file, fall back to hunting one on a task.
if (!fileId && taskId) {
	const listed = await call('list_files', { parentType: 'tasks', parentId: taskId });
	fileId = listed.text.match(/\(`([0-9a-f]{24})`/)?.[1];
}

if (fileId) {
	const dl = await call('download_file', { fileId });
	check('download_file extracts content', !dl.isError && /## /.test(dl.text), dl.text.split('\n').slice(0, 1).join(''));
	const extracted = /extracted \d+ characters|returned inline|no text extractor/.test(dl.text);
	check('download_file reported an extraction outcome', extracted);
	const raw = await call('download_file', { fileId, raw: true });
	check('download_file raw=true', !raw.isError && /Base64/.test(raw.text));
} else {
	check('download_file', false, 'no file id found to test with');
}

console.log('\n== search ==');
const searchTerm = process.env.SMOKE_SEARCH ?? 'Datenschutz';
const search = await call('search', { query: searchTerm });
check(`search "${searchTerm}"`, !search.isError, search.text.split('\n')[0]);
check('search scoped to one course', !(await call('search', { query: 'a b', courseId: courseIds[0] })).isError);

console.log('\n== api_get guard rails ==');
check('api_get allows /api/ paths', !(await call('api_get', { path: '/api/v3/me' })).isError);
check('api_get rejects non-/api path', (await call('api_get', { path: '/etc/passwd' })).isError);
check('api_get rejects absolute URL', (await call('api_get', { path: 'https://evil.test/api/x' })).isError);

console.log('\n== error handling ==');
const bogus = await call('get_course', { courseId: '000000000000000000000000' });
check('unknown id returns a tool error, not a crash', bogus.isError, bogus.text.split('\n')[0]);

await client.close();
httpServer.close();

console.log(`\n${results.length - failures}/${results.length} checks passed`);
process.exit(failures === 0 ? 0 : 1);