import os
from minio import Minio
from minio.error import S3Error
from datetime import timedelta
from minio.deleteobjects import DeleteObject
class Bucket(object):
client
=
None
policy = '{"Version":"2012-10-17","Statement":[{"Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetBucketLocation","s3:ListBucket"],"Resource":["arn:aws:s3:::%s"]},{"Effect":"Allow","Principal":{"AWS":["*"]},"Action":["s3:GetObject"],"Resource":["arn:aws:s3:::%s/*"]}]}'
def __new__(cls, *args, **kwargs):
if not cls.client:
cls.client = object.__new__(cls)
return cls.client
def __init__(self, service, access_key, secret_key, secure=False):
self.service = service
self.client = Minio(service, access_key=access_key, secret_key=secret_key, secure=secure)
def exists_bucket(self, bucket_name):
"""
判断桶是否存在
:param bucket_name: 桶名称
:return:
"""
return self.client.bucket_exists(bucket_name=bucket_name)
def create_bucket(self, bucket_name:str, is_policy:bool=True):
"""
创建桶 + 赋予策略
:param bucket_name: 桶名
:param is_policy: 策略
:return:
"""
if self.exists_bucket(bucket_name=bucket_name):
return False
else:
self.client.make_bucket(bucket_name = bucket_name)
if is_policy:
policy = self.policy % (bucket_name, bucket_name)
self.client.set_bucket_policy(bucket_name=bucket_name, policy=policy)
return True
def get_bucket_list(self):
"""
列出存储桶
:return:
"""
buckets = self.client.list_buckets()
bucket_list = []
for bucket in buckets:
bucket_list.append(
{"bucket_name": bucket.name, "create_time": bucket.creation_date}
)
return bucket_list
def remove_bucket(self, bucket_name):
"""
删除桶
:param bucket_name:
:return:
"""
try:
self.client.remove_bucket(bucket_name=bucket_name)
except S3Error as e:
print("[error]:", e)
return False
return True
def bucket_list_files(self, bucket_name, prefix):
"""
列出存储桶中所有对象
:param bucket_name: 同名
:param prefix: 前缀
:return:
"""
try:
files_list = self.client.list_objects(bucket_name=bucket_name, prefix=prefix, recursive=True)
for obj in files_list:
print(obj.bucket_name, obj.object_name.encode('utf-8'), obj.last_modified,
obj.etag, obj.size, obj.content_type)
except S3Error as e:
print("[error]:", e)
def bucket_policy(self, bucket_name):
"""
列出桶存储策略
:param bucket_name:
:return:
"""
try:
policy = self.client.get_bucket_policy(bucket_name)
except S3Error as e:
print("[error]:", e)
return None
return policy
def download_file(self, bucket_name, file, file_path, stream=1024*32):
"""
从bucket 下载文件 + 写入指定文件
:return:
"""
try:
data = self.client.get_object(bucket_name, file)
with open(file_path, "wb") as fp:
for d in data.stream(stream):
fp.write(d)
except S3Error as e:
print("[error]:", e)
def fget_file(self, bucket_name, file, file_path):
"""
下载保存文件保存本地
:param bucket_name:
:param file:
:param file_path:
:return:
"""
self.client.fget_object(bucket_name, file, file_path)
def copy_file(self, bucket_name, file, file_path):
"""
拷贝文件（最大支持5GB）
:param bucket_name:
:param file:
:param file_path:
:return:
"""
self.client.copy_object(bucket_name, file, file_path)
def upload_file(self,bucket_name, file, file_path, content_type):
"""
上传文件 + 写入
:param bucket_name: 桶名
:param file: 文件名
:param file_path: 本地文件路径
:param content_type: 文件类型
:return:
"""
try:
with open(file_path, "rb") as file_data:
file_stat = os.stat(file_path)
self.client.put_object(bucket_name, file, file_data, file_stat.st_size, content_type=content_type)
except S3Error as e:
print("[error]:", e)
def fput_file(self, bucket_name, file, file_path):
"""
上传文件
:param bucket_name: 桶名
:param file: 文件名
:param file_path: 本地文件路径
:return:
"""
try:
self.client.fput_object(bucket_name, file, file_path)
except S3Error as e:
print("[error]:", e)
def stat_object(self, bucket_name, file):
"""
获取文件元数据
:param bucket_name:
:param file:
:return:
"""
try:
data = self.client.stat_object(bucket_name, file)
print(data.bucket_name)
print(data.object_name)
print(data.last_modified)
print(data.etag)
print(data.size)
print(data.metadata)
print(data.content_type)
except S3Error as e:
print("[error]:", e)
def remove_file(self, bucket_name, file):
"""
移除单个文件
:return:
"""
self.client.remove_object(bucket_name, file)
def remove_files(self, bucket_name, file_list):
"""
删除多个文件
:return:
"""
delete_object_list = [DeleteObject(file) for file in file_list]
for del_err in self.client.remove_objects(bucket_name, delet e_object_list):
print("del_err", del_err)
def presigned_get_file(self, bucket_name, file, days=7):
"""
生成一个http GET操作 签证URL
:return:
"""
return self.client.presigned_get_object(bucket_name, file, expires=timedelta(days=days))
if __name__ == '__main__':
minio_obj = Bucket(service="10.0.0.70:9000", access_key="QCm3RLRTJsMiAql1", secret_key="vTkjS18I7vO3glG14S0R337HsZhAPT7l")
minio_obj.get_bucket_list()