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177 lines
6.1 KiB
TypeScript
177 lines
6.1 KiB
TypeScript
/**
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* @vitest-environment node
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*/
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import { createHmac } from 'node:crypto'
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import { inputValidationMock, inputValidationMockFns } from '@sim/testing'
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import { beforeEach, describe, expect, it, vi } from 'vitest'
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vi.mock('@/lib/core/security/input-validation.server', () => inputValidationMock)
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import { webhookDestination } from '@/lib/data-drains/destinations/webhook'
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const config = { url: 'https://example.com/hook' }
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const credentials = { signingSecret: 'super-secret-key' }
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const metadata = {
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drainId: 'd1',
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runId: 'r1',
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source: 'workflow_logs' as const,
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sequence: 3,
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rowCount: 5,
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}
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function mockPinnedFetchOnce(response: { ok: boolean; status: number; headers?: Headers }) {
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inputValidationMockFns.mockSecureFetchWithPinnedIP.mockResolvedValueOnce({
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ok: response.ok,
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status: response.status,
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statusText: '',
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headers: response.headers ?? new Headers(),
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text: async () => '',
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json: async () => ({}),
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arrayBuffer: async () => new ArrayBuffer(0),
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})
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}
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beforeEach(() => {
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vi.clearAllMocks()
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inputValidationMockFns.mockValidateUrlWithDNS.mockResolvedValue({
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isValid: true,
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resolvedIP: '93.184.216.34',
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originalHostname: 'example.com',
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})
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})
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describe('webhookDestination openSession', () => {
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it('signs the body with HMAC-SHA256 over `<ts>.<body>`', async () => {
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mockPinnedFetchOnce({ ok: true, status: 200 })
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const session = webhookDestination.openSession({ config, credentials })
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const body = Buffer.from('{"id":1}\n', 'utf8')
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await session.deliver({
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body,
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contentType: 'application/x-ndjson',
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metadata,
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signal: new AbortController().signal,
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})
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const call = inputValidationMockFns.mockSecureFetchWithPinnedIP.mock.calls[0]
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const [calledUrl, pinnedIP, init] = call
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expect(calledUrl).toBe('https://example.com/hook')
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expect(pinnedIP).toBe('93.184.216.34')
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const headers = init.headers as Record<string, string>
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expect(headers['Content-Type']).toBe('application/x-ndjson')
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expect(headers['X-Sim-Drain-Id']).toBe('d1')
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expect(headers['X-Sim-Run-Id']).toBe('r1')
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expect(headers['X-Sim-Sequence']).toBe('3')
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expect(headers['Idempotency-Key']).toBe('r1-3')
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const sig = headers['X-Sim-Signature']
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const tsPart = sig.match(/t=(\d+)/)![1]
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const v1Part = sig.match(/v1=([0-9a-f]+)/)![1]
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const expected = createHmac('sha256', credentials.signingSecret)
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.update(`${tsPart}.`)
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.update(body)
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.digest('hex')
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expect(v1Part).toBe(expected)
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await session.close()
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})
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it('retries on 5xx and succeeds', async () => {
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mockPinnedFetchOnce({ ok: false, status: 503 })
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mockPinnedFetchOnce({ ok: true, status: 200 })
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vi.spyOn(global, 'setTimeout').mockImplementation(((fn: () => void) => {
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fn()
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return 0 as unknown as NodeJS.Timeout
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}) as never)
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const session = webhookDestination.openSession({ config, credentials })
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const result = await session.deliver({
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body: Buffer.from('x'),
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contentType: 'application/x-ndjson',
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metadata,
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signal: new AbortController().signal,
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})
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expect(result.locator).toContain('https://example.com/hook')
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expect(inputValidationMockFns.mockSecureFetchWithPinnedIP).toHaveBeenCalledTimes(2)
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})
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it('does not retry on 4xx (other than 408/429)', async () => {
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mockPinnedFetchOnce({ ok: false, status: 401 })
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const session = webhookDestination.openSession({ config, credentials })
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await expect(
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session.deliver({
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body: Buffer.from('x'),
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contentType: 'application/x-ndjson',
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metadata,
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signal: new AbortController().signal,
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})
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).rejects.toThrow(/HTTP 401/)
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expect(inputValidationMockFns.mockSecureFetchWithPinnedIP).toHaveBeenCalledTimes(1)
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})
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it('rejects when DNS resolves to a blocked IP', async () => {
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inputValidationMockFns.mockValidateUrlWithDNS.mockResolvedValueOnce({
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isValid: false,
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error: 'url resolves to a blocked IP address',
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})
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const session = webhookDestination.openSession({ config, credentials })
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await expect(
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session.deliver({
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body: Buffer.from('x'),
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contentType: 'application/x-ndjson',
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metadata,
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signal: new AbortController().signal,
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})
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).rejects.toThrow(/blocked IP/)
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expect(inputValidationMockFns.mockSecureFetchWithPinnedIP).not.toHaveBeenCalled()
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})
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it('reuses the same pinned IP across deliveries (no DNS rebinding window)', async () => {
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mockPinnedFetchOnce({ ok: true, status: 200 })
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mockPinnedFetchOnce({ ok: true, status: 200 })
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const session = webhookDestination.openSession({ config, credentials })
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const signal = new AbortController().signal
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await session.deliver({
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body: Buffer.from('x'),
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contentType: 'application/x-ndjson',
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metadata,
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signal,
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})
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await session.deliver({
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body: Buffer.from('y'),
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contentType: 'application/x-ndjson',
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metadata: { ...metadata, sequence: 4 },
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signal,
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})
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expect(inputValidationMockFns.mockValidateUrlWithDNS).toHaveBeenCalledTimes(1)
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const calls = inputValidationMockFns.mockSecureFetchWithPinnedIP.mock.calls
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expect(calls[0][1]).toBe('93.184.216.34')
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expect(calls[1][1]).toBe('93.184.216.34')
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})
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it('rejects every header buildHeaders writes when reused as signatureHeader (drift guard)', async () => {
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mockPinnedFetchOnce({ ok: true, status: 200 })
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const session = webhookDestination.openSession({ config, credentials })
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await session.deliver({
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body: Buffer.from('x'),
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contentType: 'application/x-ndjson',
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metadata,
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signal: new AbortController().signal,
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})
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const init = inputValidationMockFns.mockSecureFetchWithPinnedIP.mock.calls[0][2]
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const writtenHeaders = Object.keys(init.headers as Record<string, string>)
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for (const name of writtenHeaders) {
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const result = webhookDestination.configSchema.safeParse({
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url: 'https://example.com/hook',
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signatureHeader: name,
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})
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expect(
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result.success,
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`expected signatureHeader="${name}" to be rejected (it is written by buildHeaders)`
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).toBe(false)
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}
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})
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})
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