oss-internal 1.7.3

An internal utility package for Aliyun OSS operations.

ALI OSS Upload/Download Package

阿里云 OSS 文件上传下载工具包，支持同步和异步操作，提供文件上传、批量上传、目录上传、大文件分片上传以及文件下载功能。

功能特点

• 支持单个文件上传和下载
• 支持批量文件上传和下载
• 支持目录上传
• 支持大文件分片上传和下载
• 支持同步和异步操作
• 提供上传/下载进度显示
• 完善的错误处理机制
• 支持内网和外网访问

安装

pip install oss-internal

使用方法

1. 文件上传

单个文件上传

from oss_internal import upload_file_to_oss

# 同步上传
oss_key, bucket_name = upload_file_to_oss(
    file_path="path/to/local/file.txt",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket",
    default_prefix="your/prefix"  # 可选
)

# 异步上传
from oss_internal import aupload_file_to_oss
import asyncio

async def upload():
    oss_key, bucket_name = await aupload_file_to_oss(
        file_path="path/to/local/file.txt",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket"
    )

asyncio.run(upload())

批量文件上传

from oss_internal import batch_upload_file_to_oss

# 同步批量上传
file_paths = [
    "path/to/file1.txt",
    "path/to/file2.txt",
    "path/to/file3.txt"
]

oss_keys, bucket_name = batch_upload_file_to_oss(
    file_paths=file_paths,
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket"
)

# 异步批量上传
from oss_internal import abatch_upload_file_to_oss

async def batch_upload():
    oss_keys, bucket_name = await abatch_upload_file_to_oss(
        file_paths=file_paths,
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket"
    )

asyncio.run(batch_upload())

目录上传

from oss_internal import upload_directory_to_oss

# 同步目录上传
oss_keys, bucket_name = upload_directory_to_oss(
    directory_path="path/to/directory",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket"
)

# 异步目录上传
from oss_internal import aupload_directory_to_oss

async def upload_dir():
    oss_keys, bucket_name = await aupload_directory_to_oss(
        directory_path="path/to/directory",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket"
    )

asyncio.run(upload_dir())

大文件分片上传

from oss_internal import upload_large_file_to_oss

# 同步大文件分片上传
oss_key = upload_large_file_to_oss(
    file_path="path/to/large_file.mp4",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket",
    part_size=10 * 1024 * 1024,  # 10MB分片
    progress_callback=show_upload_progress
)

# 异步大文件分片上传
from oss_internal import aupload_large_file_to_oss

async def upload_large_file():
    oss_key = await aupload_large_file_to_oss(
        file_path="path/to/large_file.mp4",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        part_size=10 * 1024 * 1024
    )

asyncio.run(upload_large_file())

2. 文件下载

单个文件下载

from oss_internal import download_single_file_from_oss

try:
    file_path = download_single_file_from_oss(
        oss_key="path/to/oss/file.txt",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        temp_dir="/path/to/save"  # 可选，指定下载目录
    )
    print(f"文件下载成功: {file_path}")
except FileNotFoundError as e:
    print(f"文件不存在: {e}")
except Exception as e:
    print(f"下载失败: {e}")

批量文件下载

from oss_internal import download_batch_files_from_oss

try:
    results = download_batch_files_from_oss(
        oss_keys=[
            "path/to/file1.txt",
            "path/to/file2.txt",
            "path/to/file3.txt"
        ],
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        temp_dir="/path/to/save"  # 可选，指定下载目录
    )
    
    # 处理每个文件的下载结果
    for result in results:
        if result["success"]:
            print(f"文件 {result['oss_key']} 下载成功: {result['file_path']}")
        else:
            print(f"文件 {result['oss_key']} 下载失败: {result['error']}")
            
except Exception as e:
    print(f"批量下载失败: {e}")

大文件分片下载

from oss_internal import download_large_file_from_oss

try:
    file_path = download_large_file_from_oss(
        oss_key="path/to/large_file.mp4",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        temp_dir="/path/to/save",
        part_size=10 * 1024 * 1024,  # 10MB分片
        progress_callback=show_download_progress
    )
    print(f"大文件下载成功: {file_path}")
except FileNotFoundError as e:
    print(f"文件不存在: {e}")
except Exception as e:
    print(f"下载失败: {e}")

3. 进度显示

from oss_internal import show_upload_progress, show_download_progress

# 上传时显示进度
upload_file_to_oss(
    file_path="path/to/file.txt",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket",
    progress_callback=show_upload_progress
)

# 下载时显示进度
download_single_file_from_oss(
    oss_key="path/to/oss/file.txt",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket",
    progress_callback=show_download_progress
)

# 异步进度显示
from oss_internal import show_upload_progress_async, show_download_progress_async

async def upload_with_progress():
    await aupload_file_to_oss(
        file_path="path/to/file.txt",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        progress_callback=show_upload_progress_async
    )

4. 签名URL生成

from oss_internal import generate_signed_url, generate_signed_url_async

# 同步生成签名URL
signed_url = generate_signed_url(
    oss_key="path/to/file.txt",
    ali_access_key_id="your_key",
    ali_access_secret="your_secret",
    oss_origin="oss-cn-hangzhou",
    bucket_name="your-bucket",
    expire_seconds=3600  # 1小时有效期
)

# 异步生成签名URL
async def get_signed_url():
    signed_url = await generate_signed_url_async(
        oss_key="path/to/file.txt",
        ali_access_key_id="your_key",
        ali_access_secret="your_secret",
        oss_origin="oss-cn-hangzhou",
        bucket_name="your-bucket",
        expire_seconds=3600
    )
    return signed_url

# 验证签名URL
from oss_internal import verify_signed_url_async

async def verify_url():
    is_valid = await verify_signed_url_async(signed_url)
    print(f"URL是否有效: {is_valid}")

参数说明

通用参数

• ali_access_key_id: 阿里云 AccessKey ID
• ali_access_secret: 阿里云 AccessKey Secret
• oss_origin: OSS 服务的地域节点，例如 'oss-cn-hangzhou'
• bucket_name: OSS Bucket 的名称
• internal: 是否使用内网访问，默认为 True
• progress_callback: 进度回调函数，默认为 None

上传特有参数

• file_path: 本地文件路径
• default_prefix: 默认的 OSS 对象前缀路径
• prefix: 自定义的 OSS 对象前缀路径
• oss_key: OSS 对象键
• part_size: 分片大小（大文件上传时使用）

下载特有参数

• oss_key: OSS 文件 key
• temp_dir: 临时目录路径，如果不指定则使用系统临时目录
• part_size: 分片大小（大文件下载时使用）
• read_chunk_size: 读取块大小（大文件下载时使用）

签名URL参数

• expire_seconds: 签名URL的有效期（秒）

错误处理

包中定义了以下自定义异常：

• FileNotFoundError: 文件不存在时抛出
• FileNotEnoughError: 批量下载时部分文件下载成功时抛出
• EmptyDirectoryError: 目录为空时抛出
• NotADirectoryError: 指定路径不是目录时抛出
• ValueError: 参数错误时抛出

性能优化

大文件处理

• 支持分片上传和下载，提高大文件传输效率
• 可自定义分片大小，根据网络环境调整
• 多线程并发处理，充分利用带宽

异步操作

• 支持异步上传和下载，不阻塞主线程
• 可与其他异步代码无缝集成
• 提供异步进度回调

进度监控

• 实时显示传输进度
• 支持自定义进度回调函数
• 显示传输速度和预计剩余时间

最佳实践

1. 大文件处理：

   • 文件大小超过100MB时建议使用分片上传/下载
   • 根据网络环境调整分片大小
   • 使用进度回调监控传输状态

2. 批量操作：

   • 批量上传时注意内存使用
   • 使用异步操作提高效率
   • 正确处理部分失败的情况

3. 错误处理：

   • 始终使用try-catch包装操作
   • 根据具体异常类型进行不同处理
   • 记录详细的错误信息

4. 网络优化：

   • 使用内网endpoint提高传输速度
   • 合理设置超时时间
   • 监控网络状态

依赖要求

• Python >= 3.11
• aiohappyeyeballs
• aiohttp
• aiosignal
• aliyun-python-sdk-core
• aliyun-python-sdk-kms
• asyncio-oss
• attrs
• certifi
• cffi
• charset-normalizer
• crcmod
• cryptography
• frozenlist
• idna
• jmespath
• multidict
• oss2
• propcache
• pycparser
• pycryptodome
• requests
• six
• tqdm
• urllib3
• yarl

许可证

MIT License

贡献

欢迎提交 Issue 和 Pull Request！

更新日志

v1.7.1

• 更新README.md

v1.7.0

• 支持大文件分片上传

v1.6.1

• 更新README.md

v1.6.0

• 支持大文件分片下载

v1.5.0

• 支持同步和异步操作

v1.4.0

• 初始版本发布
• 支持基本的文件上传下载功能
• 支持进度显示
• 支持签名URL生成