flnxi-Wu/app/api/materials/asset/__tests__/route.test.ts

import { NextRequest } from 'next/server'
import { Readable } from 'stream'
import { GET } from '../route'

jest.mock('@/lib/auth', () => ({
  authOptions: {},
}))

jest.mock('next-auth', () => ({
  getServerSession: jest.fn(),
}))

jest.mock('@/lib/prisma', () => ({
  prisma: {
    material: {
      findMany: jest.fn(),
    },
  },
}))

jest.mock('@/lib/s3', () => ({
  getS3ObjectStream: jest.fn(),
  isS3Url: jest.fn((value?: string | null) => /^https?:\/\//.test(value || '')),
}))

jest.mock('@/lib/material-share-token', () => ({
  findValidMaterialShareToken: jest.fn(),
}))

jest.mock('@/lib/public-share-settings', () => ({
  isPublicShareEnabled: jest.fn(),
}))

const { getServerSession } = require('next-auth')
const { prisma } = require('@/lib/prisma')
const { getS3ObjectStream, isS3Url } = require('@/lib/s3')
const { findValidMaterialShareToken } = require('@/lib/material-share-token')
const { isPublicShareEnabled } = require('@/lib/public-share-settings')

const buildMaterialRecord = (overrides: Record<string, unknown> = {}) => ({
  id: 'material-1',
  previewUrl: 'http://minio:9000/bucket/preview.webp',
  zipFilePath: 'http://minio:9000/bucket/material.zip',
  videoSourceUrl: null,
  videoCoverUrl: null,
  videoPreview540Url: null,
  videoPreviewClipUrl: null,
  audioUrl: null,
  displayImages: '[]',
  previewUrls: null,
  metadata: null,
  ...overrides,
})

describe('GET /api/materials/asset', () => {
  beforeEach(() => {
    jest.resetAllMocks()
    isS3Url.mockImplementation((value?: string | null) => /^https?:\/\//.test(value || ''))
    isPublicShareEnabled.mockResolvedValue(true)
  })

  it('未登录时拒绝读取素材文件', async () => {
    getServerSession.mockResolvedValue(null)

    const response = await GET(
      new NextRequest('http://localhost/api/materials/asset?url=http%3A%2F%2Fminio%3A9000%2Fbucket%2Fpreview.webp')
    )
    const data = await response.json()

    expect(response.status).toBe(401)
    expect(data.error).toBe('请先登录或使用有效分享链接')
    expect(prisma.material.findMany).not.toHaveBeenCalled()
    expect(getS3ObjectStream).not.toHaveBeenCalled()
  })

  it('文件地址不属于素材记录时拒绝读取', async () => {
    getServerSession.mockResolvedValue({ user: { id: 'user-1', role: 'USER' } })
    prisma.material.findMany.mockResolvedValue([])

    const response = await GET(
      new NextRequest('http://localhost/api/materials/asset?url=http%3A%2F%2Fminio%3A9000%2Fbucket%2Funknown.webp')
    )
    const data = await response.json()

    expect(response.status).toBe(404)
    expect(data.error).toBe('文件不属于当前素材库记录')
    expect(getS3ObjectStream).not.toHaveBeenCalled()
  })

  it('已登录且文件属于素材记录时代理返回 S3 文件流', async () => {
    const fileUrl = 'http://minio:9000/bucket/preview.webp'
    getServerSession.mockResolvedValue({ user: { id: 'user-1', role: 'USER' } })
    prisma.material.findMany.mockResolvedValue([buildMaterialRecord({ previewUrl: fileUrl })])
    getS3ObjectStream.mockResolvedValue({
      body: Readable.from([Buffer.from('asset-body')]),
      contentLength: 10,
      contentType: 'image/webp',
      acceptRanges: 'bytes',
    })

    const response = await GET(
      new NextRequest(`http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}`)
    )
    const body = await response.text()

    expect(response.status).toBe(200)
    expect(response.headers.get('content-type')).toBe('image/webp')
    expect(body).toBe('asset-body')
    expect(getS3ObjectStream).toHaveBeenCalledWith(fileUrl, null)
  })

  it('未登录但分享票据有效时允许读取素材文件', async () => {
    const fileUrl = 'http://minio:9000/bucket/preview.webp'
    getServerSession.mockResolvedValue(null)
    prisma.material.findMany.mockResolvedValue([buildMaterialRecord({ previewUrl: fileUrl })])
    findValidMaterialShareToken.mockResolvedValue({ id: 'token-row', materialId: 'material-1' })
    getS3ObjectStream.mockResolvedValue({
      body: Readable.from([Buffer.from('asset-body')]),
      contentLength: 10,
      contentType: 'image/webp',
      acceptRanges: 'bytes',
    })

    const response = await GET(
      new NextRequest(
        `http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}&shareToken=share-token`
      )
    )
    const body = await response.text()

    expect(response.status).toBe(200)
    expect(body).toBe('asset-body')
    expect(findValidMaterialShareToken).toHaveBeenCalledWith('share-token', 'material-1')
  })

  it('公开分享开关关闭时拒绝通过分享票据读取素材文件', async () => {
    const fileUrl = 'http://minio:9000/bucket/preview.webp'
    getServerSession.mockResolvedValue(null)
    prisma.material.findMany.mockResolvedValue([buildMaterialRecord({ previewUrl: fileUrl })])
    isPublicShareEnabled.mockResolvedValue(false)

    const response = await GET(
      new NextRequest(
        `http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}&shareToken=share-token`
      )
    )
    const data = await response.json()

    expect(response.status).toBe(403)
    expect(data.error).toBe('公开分享功能已关闭')
    expect(findValidMaterialShareToken).not.toHaveBeenCalled()
    expect(getS3ObjectStream).not.toHaveBeenCalled()
  })

  it('允许读取 metadata.previewUrls 中登记过的预览图', async () => {
    const fileUrl = 'http://minio:9000/bucket/metadata-preview.webp'
    getServerSession.mockResolvedValue({ user: { id: 'user-1', role: 'USER' } })
    prisma.material.findMany.mockResolvedValue([
      buildMaterialRecord({
        metadata: JSON.stringify({
          previewUrls: [fileUrl],
          templateFields: {
            externalRef: 'http://minio:9000/bucket/not-this.webp',
          },
        }),
      })
    ])
    getS3ObjectStream.mockResolvedValue({
      body: Readable.from([Buffer.from('metadata-preview')]),
      contentLength: 16,
      contentType: 'image/webp',
      acceptRanges: 'bytes',
    })

    const response = await GET(
      new NextRequest(`http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}`)
    )

    await expect(response.text()).resolves.toBe('metadata-preview')
    expect(response.status).toBe(200)
    expect(getS3ObjectStream).toHaveBeenCalledWith(fileUrl, null)
  })

  it('不会把 metadata 普通自定义字段里的 URL 当成可代理文件', async () => {
    const fileUrl = 'http://minio:9000/bucket/custom-field.webp'
    getServerSession.mockResolvedValue({ user: { id: 'user-1', role: 'USER' } })
    prisma.material.findMany.mockResolvedValue([
      buildMaterialRecord({
        metadata: JSON.stringify({
          templateFields: {
            externalRef: fileUrl,
          },
        }),
      })
    ])

    const response = await GET(
      new NextRequest(`http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}`)
    )
    const data = await response.json()

    expect(response.status).toBe(404)
    expect(data.error).toBe('文件不属于当前素材库记录')
    expect(getS3ObjectStream).not.toHaveBeenCalled()
  })

  it('第一条候选只是 metadata 普通字段命中时，会继续寻找真实文件归属素材', async () => {
    const fileUrl = 'http://minio:9000/bucket/shared.webp'
    getServerSession.mockResolvedValue({ user: { id: 'user-1', role: 'USER' } })
    prisma.material.findMany.mockResolvedValue([
      buildMaterialRecord({
        id: 'material-false-positive',
        previewUrl: 'http://minio:9000/bucket/other.webp',
        metadata: JSON.stringify({
          templateFields: { externalRef: fileUrl },
        }),
      }),
      buildMaterialRecord({
        id: 'material-real-owner',
        previewUrl: fileUrl,
      }),
    ])
    getS3ObjectStream.mockResolvedValue({
      body: Readable.from([Buffer.from('real-owner')]),
      contentLength: 10,
      contentType: 'image/webp',
      acceptRanges: 'bytes',
    })

    const response = await GET(
      new NextRequest(`http://localhost/api/materials/asset?url=${encodeURIComponent(fileUrl)}`)
    )

    await expect(response.text()).resolves.toBe('real-owner')
    expect(response.status).toBe(200)
    expect(getS3ObjectStream).toHaveBeenCalledWith(fileUrl, null)
  })
})