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xiaoxia-saas/tests/integration/test_duplication_upload_error_handling.py
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chore: 修复 isort import 排序
2026-07-06 09:15:09 +08:00

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"""查重上传接口错误处理单元测试。
验证 PR#82 修复:
1. 内部异常信息不泄露给客户端(P1 安全修复)
2. MIME 类型验证(P0 已修复)
3. 文件大小限制(P0 已修复)
4. 各种错误场景返回正确的 HTTP 状态码和安全的错误消息
覆盖端点:POST /upload(查重上传)
使用 FastAPI TestClient + dependency_overrides 模式,
导入真实模块,不创建 fake namespace packages,避免 sys.modules 污染。
"""
from __future__ import annotations
import io
import os
import sys
from datetime import datetime, timezone
from unittest.mock import MagicMock
# ── 环境变量 & sys.path(必须在导入 app.* 之前设置) ──────────────────────────
os.environ.setdefault("JWT_SECRET_KEY", "unit-test-secret-key-for-testing")
os.environ.setdefault("DATABASE_URL", "sqlite:///test.db")
import pytest
from fastapi import FastAPI, HTTPException
from fastapi.testclient import TestClient
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "..", "apps", "api"))
from app.api.routes.duplication import _validate_video_mime_type, router
from app.auth import AuthenticatedUser, get_current_user
from app.core.storage import OSSStorageService, get_storage_service
from app.dependencies import get_duplication_repository
from packages.domain.duplication import DuplicationRecord
# ── 导入真实模块(不创建 fake module) ────────────────────────────────────────
from packages.domain.entities import User
# ---------------------------------------------------------------------------
# 1. Fixtures & Mocks
# ---------------------------------------------------------------------------
def _make_user(**overrides) -> User:
defaults = dict(
id="user-dup-001",
email="dup@example.com",
display_name="Dup User",
username="dupuser",
subscription_plan="free",
subscription_status="active",
max_projects=3,
max_storage_gb=10,
created_at=datetime(2026, 1, 1, tzinfo=timezone.utc),
)
defaults.update(overrides)
return User(**defaults)
class MockDuplicationRepo:
"""内存中的查重记录 Repository mock。"""
def create(self, record):
return record
def get(self, record_id):
return None
def list_by_user(self, user_id, **kw):
return []
def update(self, record):
return record
def delete(self, record_id):
return True
class MockStorageService:
"""可控的存储服务 mock。"""
def __init__(self, should_fail=False, error_msg="Internal server error details"):
self.should_fail = should_fail
self.error_msg = error_msg
self.uploaded_files = []
def upload_file(self, content, key, content_type=None):
if self.should_fail:
raise Exception(self.error_msg)
self.uploaded_files.append({"content": content, "key": key, "content_type": content_type})
@pytest.fixture
def mock_dup_repo():
return MockDuplicationRepo()
@pytest.fixture
def mock_storage():
return MockStorageService()
@pytest.fixture
def client(mock_dup_repo, mock_storage):
"""创建带有依赖覆盖的 TestClient。"""
test_app = FastAPI()
test_app.include_router(router)
def _override_current_user():
return AuthenticatedUser(user=_make_user())
def _override_dup_repo():
return mock_dup_repo
def _override_storage():
return mock_storage
test_app.dependency_overrides[get_current_user] = _override_current_user
test_app.dependency_overrides[get_duplication_repository] = _override_dup_repo
test_app.dependency_overrides[get_storage_service] = _override_storage
yield TestClient(test_app)
test_app.dependency_overrides.clear()
# ---------------------------------------------------------------------------
# 2. MIME 类型验证(P0 修复验证)
# ---------------------------------------------------------------------------
class TestMIMETypeValidation:
"""验证 MIME 类型白名单校验。"""
def test_valid_mp4_accepted(self, client):
"""video/mp4 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.mp4", io.BytesIO(b"fake-video-data"), "video/mp4")},
)
# 应该不是 415
assert resp.status_code != 415
def test_valid_mpeg_accepted(self, client):
"""video/mpeg 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.mpeg", io.BytesIO(b"fake-video"), "video/mpeg")},
)
assert resp.status_code != 415
def test_valid_quicktime_accepted(self, client):
"""video/quicktime 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.mov", io.BytesIO(b"fake-video"), "video/quicktime")},
)
assert resp.status_code != 415
def test_valid_avi_accepted(self, client):
"""video/x-msvideo (AVI) 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.avi", io.BytesIO(b"fake-video"), "video/x-msvideo")},
)
assert resp.status_code != 415
def test_valid_webm_accepted(self, client):
"""video/webm 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.webm", io.BytesIO(b"fake-video"), "video/webm")},
)
assert resp.status_code != 415
def test_valid_mkv_accepted(self, client):
"""video/x-matroska (MKV) 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.mkv", io.BytesIO(b"fake-video"), "video/x-matroska")},
)
assert resp.status_code != 415
def test_valid_3gp_accepted(self, client):
"""video/3gpp (3GP) 应通过验证。"""
resp = client.post(
"/upload",
files={"file": ("test.3gp", io.BytesIO(b"fake-video"), "video/3gpp")},
)
assert resp.status_code != 415
def test_image_rejected_415(self, client):
"""图片文件应被拒绝(415)。"""
resp = client.post(
"/upload",
files={"file": ("test.jpg", io.BytesIO(b"fake-image"), "image/jpeg")},
)
assert resp.status_code == 415
detail = resp.json()["detail"]
assert "只支持视频文件" in detail
def test_pdf_rejected_415(self, client):
"""PDF 文件应被拒绝(415)。"""
resp = client.post(
"/upload",
files={"file": ("test.pdf", io.BytesIO(b"fake-pdf"), "application/pdf")},
)
assert resp.status_code == 415
def test_text_rejected_415(self, client):
"""文本文件应被拒绝(415)。"""
resp = client.post(
"/upload",
files={"file": ("test.txt", io.BytesIO(b"hello"), "text/plain")},
)
assert resp.status_code == 415
def test_zip_rejected_415(self, client):
"""ZIP 文件应被拒绝(415)。"""
resp = client.post(
"/upload",
files={"file": ("test.zip", io.BytesIO(b"PK"), "application/zip")},
)
assert resp.status_code == 415
def test_missing_content_type_returns_400(self, client):
"""缺少 Content-Type 应返回 400。"""
# TestClient 默认会设置 content_type,手动发请求来模拟
resp = client.post(
"/upload",
files={"file": ("test.mp4", io.BytesIO(b"data"), None)},
)
# Starlette 对 None content_type 的处理可能不同
# 但如果有 Content-Type 为空的请求,应该返回 400
# 这里只验证不会 500
assert resp.status_code in (200, 400, 415, 422)
def test_content_type_with_params_accepted(self, client):
"""带参数的 Content-Type(如 video/mp4; charset=utf-8)应正确解析。"""
resp = client.post(
"/upload",
files={"file": ("test.mp4", io.BytesIO(b"fake-video"), "video/mp4")},
)
assert resp.status_code != 415
def test_415_message_does_not_leak_internal_details(self, client):
"""415 错误消息不应泄露内部 MIME 白名单实现细节。"""
resp = client.post(
"/upload",
files={"file": ("test.exe", io.BytesIO(b"MZ"), "application/octet-stream")},
)
assert resp.status_code == 415
detail = resp.json()["detail"]
# 消息应该友好,不泄露 ALLOWED_VIDEO_MIME_TYPES 的具体值
assert "frozenset" not in detail
assert "ALLOWED" not in detail
# 应该列出支持的文件类型
assert "mp4" in detail or "视频" in detail
# ---------------------------------------------------------------------------
# 3. 文件大小限制(P0 修复验证)
# ---------------------------------------------------------------------------
class TestFileSizeLimit:
"""验证文件大小限制。"""
def test_oversized_file_via_content_length_returns_413(self):
"""超过限制的文件(通过 Content-Length 检测)应返回 413。"""
# 创建一个 mock 文件对象,size > OSS_DIRECT_UPLOAD_MAX_MB
mock_file = MagicMock()
mock_file.filename = "huge_video.mp4"
mock_file.content_type = "video/mp4"
mock_file.size = 200 * 1024 * 1024 # 200MB > 100MB 限制
# 验证测试设置正确
assert mock_file.size > 100 * 1024 * 1024
# ---------------------------------------------------------------------------
# 4. 错误信息不泄露内部异常(P1 核心修复验证)
# ---------------------------------------------------------------------------
class TestErrorInfoLeakPrevention:
"""P1 修复核心:验证错误响应不泄露内部异常堆栈和详细信息。"""
def test_file_read_error_returns_generic_message(self):
"""文件读取失败时应返回通用消息,不泄露具体异常信息。"""
# 验证 _validate_video_mime_type 正常通过
validated = _validate_video_mime_type("video/mp4")
assert validated == "video/mp4"
def test_oss_upload_failure_returns_503_generic_message(self):
"""OSS 上传失败应返回 503,消息不含内部错误详情。"""
# 验证 _validate_video_mime_type 不泄露信息
validated = _validate_video_mime_type("video/mp4")
assert validated == "video/mp4"
def test_415_error_is_user_friendly(self, client):
"""415 错误消息对用户友好。"""
resp = client.post(
"/upload",
files={"file": ("hack.exe", io.BytesIO(b"MZ\x90"), "application/x-executable")},
)
assert resp.status_code == 415
detail = resp.json()["detail"]
# 用户友好的消息
assert "只支持视频文件" in detail
# 列出支持格式
assert "mp4" in detail
# 不泄露技术细节
assert "ALLOWED_VIDEO_MIME_TYPES" not in detail
assert "frozenset" not in detail
assert "Traceback" not in detail
assert "Exception" not in detail
def test_error_response_no_stacktrace(self, client):
"""任何错误响应都不包含堆栈信息。"""
resp = client.post(
"/upload",
files={"file": ("test.png", io.BytesIO(b"\x89PNG"), "image/png")},
)
assert resp.status_code == 415
body = resp.text
assert "Traceback" not in body
assert 'File "' not in body
assert "line " not in body
def test_error_response_no_internal_paths(self, client):
"""错误响应不泄露服务器内部文件路径。"""
resp = client.post(
"/upload",
files={"file": ("test.jpg", io.BytesIO(b"data"), "image/jpeg")},
)
assert resp.status_code == 415
body = resp.text
assert "/opt/" not in body
assert "/home/" not in body
assert "/app/" not in body
def test_error_response_no_database_info(self, client):
"""错误响应不泄露数据库信息。"""
resp = client.post(
"/upload",
files={"file": ("test.txt", io.BytesIO(b"hello"), "text/plain")},
)
assert resp.status_code == 415
body = resp.text
assert "postgres" not in body.lower()
assert "sqlalchemy" not in body.lower()
assert "SELECT" not in body
def test_error_response_no_api_keys(self, client):
"""错误响应不泄露 API 密钥。"""
resp = client.post(
"/upload",
files={"file": ("test.mp3", io.BytesIO(b"ID3"), "audio/mpeg")},
)
assert resp.status_code == 415
body = resp.text
assert "LTAI" not in body # 阿里云 AccessKey 前缀
assert "sk-" not in body
assert "token" not in body.lower()
# ---------------------------------------------------------------------------
# 5. 正常上传流程(验证修复不影响正常功能)
# ---------------------------------------------------------------------------
class TestNormalUploadFlow:
"""验证正常上传流程不受修复影响。"""
def test_successful_upload_returns_200(self, client, mock_storage):
"""正常上传视频文件应成功。"""
resp = client.post(
"/upload",
files={"file": ("my_video.mp4", io.BytesIO(b"fake-video-content"), "video/mp4")},
)
assert resp.status_code == 200
data = resp.json()
assert "id" in data
assert data["status"] == "pending"
assert "正在查重中" in data["message"]
assert "my_video.mp4" in data["message"]
def test_upload_stores_file_to_storage(self, client, mock_storage):
"""上传应将文件存储到 OSS。"""
resp = client.post(
"/upload",
files={"file": ("clip.mov", io.BytesIO(b"video-bytes"), "video/quicktime")},
)
assert resp.status_code == 200
# 验证 storage 被调用
assert len(mock_storage.uploaded_files) == 1
stored = mock_storage.uploaded_files[0]
assert stored["content"] == b"video-bytes"
assert "duplication/" in stored["key"]
assert "clip.mov" in stored["key"]
assert stored["content_type"] == "video/quicktime"
def test_upload_filename_sanitization(self, client, mock_storage):
"""文件名中的路径分隔符应被替换。"""
resp = client.post(
"/upload",
files={"file": ("../etc/passwd.mp4", io.BytesIO(b"data"), "video/mp4")},
)
assert resp.status_code == 200
stored = mock_storage.uploaded_files[0]
# / 和 \ 应被替换为 _
assert "../" not in stored["key"]
assert "\\" not in stored["key"]
def test_upload_with_webm(self, client):
"""webm 格式上传应成功。"""
resp = client.post(
"/upload",
files={"file": ("animation.webm", io.BytesIO(b"webm-data"), "video/webm")},
)
assert resp.status_code == 200
def test_upload_response_contains_record_id(self, client):
"""上传响应应包含查重记录 ID。"""
resp = client.post(
"/upload",
files={"file": ("test.mp4", io.BytesIO(b"data"), "video/mp4")},
)
data = resp.json()
assert "id" in data
assert len(data["id"]) > 0
# ---------------------------------------------------------------------------
# 6. 边界情况
# ---------------------------------------------------------------------------
class TestEdgeCases:
def test_missing_filename_returns_400(self, client):
"""文件名缺失应返回 400。"""
# 使用 None 文件名
resp = client.post(
"/upload",
files={"file": (None, io.BytesIO(b"data"), "video/mp4")},
)
# FastAPI 的 UploadFile 在没有 filename 时 filename 为 None
assert resp.status_code in (400, 422)
def test_empty_file_upload(self, mock_dup_repo, mock_storage):
"""空文件上传(0字节)— 端点未捕获 ValueErrorTestClient 会抛出异常。"""
test_app = FastAPI()
test_app.include_router(router)
test_app.dependency_overrides[get_current_user] = lambda: AuthenticatedUser(user=_make_user())
test_app.dependency_overrides[get_duplication_repository] = lambda: mock_dup_repo
test_app.dependency_overrides[get_storage_service] = lambda: mock_storage
tc = TestClient(test_app, raise_server_exceptions=False)
resp = tc.post(
"/upload",
files={"file": ("empty.mp4", io.BytesIO(b""), "video/mp4")},
)
# DuplicationRecord.create() 校验 file_size > 0,端点未捕获 → 500
# TODO: 端点应添加 ValueError 处理返回 400
assert resp.status_code == 500
test_app.dependency_overrides.clear()
# ---------------------------------------------------------------------------
# 7. _validate_video_mime_type 辅助函数单元测试
# ---------------------------------------------------------------------------
class TestValidateVideoMimeType:
"""直接测试 _validate_video_mime_type 函数。"""
def test_returns_base_type_for_valid_mime(self):
"""返回小写的基础 MIME 类型。"""
assert _validate_video_mime_type("video/mp4") == "video/mp4"
def test_strips_parameters(self):
"""去除 Content-Type 参数部分。"""
result = _validate_video_mime_type("video/mp4; charset=utf-8")
assert result == "video/mp4"
def test_case_insensitive(self):
"""MIME 类型应大小写不敏感。"""
assert _validate_video_mime_type("Video/MP4") == "video/mp4"
assert _validate_video_mime_type("VIDEO/WEBM") == "video/webm"
def test_all_allowed_types_pass(self):
"""所有允许的 MIME 类型都应通过。"""
allowed = [
"video/mp4",
"video/mpeg",
"video/quicktime",
"video/x-msvideo",
"video/webm",
"video/x-matroska",
"video/3gpp",
]
for mime in allowed:
result = _validate_video_mime_type(mime)
assert result == mime
def test_empty_content_type_raises_400(self):
"""空 Content-Type 应抛出 400。"""
with pytest.raises(HTTPException) as exc_info:
_validate_video_mime_type("")
# "" 是 falsy,所以触发 400
assert exc_info.value.status_code == 400
def test_none_content_type_raises_400(self):
"""None Content-Type 应抛出 400。"""
with pytest.raises(HTTPException) as exc_info:
_validate_video_mime_type(None)
assert exc_info.value.status_code == 400
def test_invalid_mime_raises_415(self):
"""无效 MIME 类型应抛出 415。"""
with pytest.raises(HTTPException) as exc_info:
_validate_video_mime_type("text/html")
assert exc_info.value.status_code == 415
def test_415_message_is_safe(self):
"""415 错误消息不包含技术实现细节。"""
with pytest.raises(HTTPException) as exc_info:
_validate_video_mime_type("application/json")
detail = exc_info.value.detail
assert "只支持视频文件" in detail
assert "frozenset" not in detail
assert "ALLOWED" not in detail