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- import calendar
- import json
- import time
- from urllib.parse import urlparse, parse_qs
- from alibabacloud_credentials.provider.refreshable import Credentials, RefreshResult, RefreshCachedSupplier
- from alibabacloud_credentials.http import HttpOptions
- from Tea.core import TeaCore
- from alibabacloud_credentials_api import ICredentialsProvider
- from alibabacloud_credentials.utils import auth_util as au
- from alibabacloud_credentials.utils import parameter_helper as ph
- from alibabacloud_credentials.exceptions import CredentialException
- def _get_stale_time(expiration: int) -> int:
- if expiration < 0:
- return int(time.mktime(time.localtime())) + 60 * 60
- return expiration - 15 * 60
- class URLCredentialsProvider(ICredentialsProvider):
- DEFAULT_CONNECT_TIMEOUT = 5000
- DEFAULT_READ_TIMEOUT = 10000
- def __init__(self, *,
- uri: str = None,
- protocol: str = 'http',
- http_options: HttpOptions = None):
- self._uri = uri or au.environment_credentials_uri
- if self._uri is None or self._uri == '':
- raise ValueError('uri or environment variable ALIBABA_CLOUD_CREDENTIALS_URI cannot be empty')
- self._protocol = protocol
- self._http_options = http_options if http_options is not None else HttpOptions()
- self._runtime_options = {
- 'connectTimeout': self._http_options.connect_timeout if self._http_options.connect_timeout is not None else URLCredentialsProvider.DEFAULT_CONNECT_TIMEOUT,
- 'readTimeout': self._http_options.read_timeout if self._http_options.read_timeout is not None else URLCredentialsProvider.DEFAULT_READ_TIMEOUT,
- 'httpsProxy': self._http_options.proxy
- }
- self._credentials_cache = RefreshCachedSupplier(
- refresh_callable=self._refresh_credentials,
- refresh_callable_async=self._refresh_credentials_async,
- )
- def get_credentials(self) -> Credentials:
- return self._credentials_cache._sync_call()
- async def get_credentials_async(self) -> Credentials:
- return await self._credentials_cache._async_call()
- def _refresh_credentials(self) -> RefreshResult[Credentials]:
- r = urlparse(self._uri)
- tea_request = ph.get_new_request()
- tea_request.headers['host'] = r.hostname
- tea_request.port = r.port
- tea_request.protocol = r.scheme or self._protocol or 'http'
- tea_request.method = 'GET'
- tea_request.pathname = r.path
- for key, values in parse_qs(r.query).items():
- for value in values:
- tea_request.query[key] = value
- response = TeaCore.do_action(tea_request, self._runtime_options)
- if response.status_code != 200:
- raise CredentialException(
- f'error refreshing credentials from {self._uri}, http_code={str(response.status_code)}, result: {response.body.decode("utf-8")}')
- body = response.body.decode('utf-8')
- dic = json.loads(body)
- content_code = dic.get('Code')
- if content_code != "Success" or 'AccessKeyId' not in dic or 'AccessKeySecret' not in dic or 'SecurityToken' not in dic or 'Expiration' not in dic:
- raise CredentialException(
- f'error retrieving credentials from {self._uri} result: {response.body.decode("utf-8")}')
- # 先转换为时间数组
- time_array = time.strptime(dic.get('Expiration'), '%Y-%m-%dT%H:%M:%SZ')
- # 转换为时间戳
- expiration = calendar.timegm(time_array)
- credentials = Credentials(
- access_key_id=dic.get('AccessKeyId'),
- access_key_secret=dic.get('AccessKeySecret'),
- security_token=dic.get('SecurityToken'),
- expiration=expiration,
- provider_name=self.get_provider_name()
- )
- return RefreshResult(value=credentials,
- stale_time=_get_stale_time(expiration))
- async def _refresh_credentials_async(self) -> RefreshResult[Credentials]:
- r = urlparse(self._uri)
- tea_request = ph.get_new_request()
- tea_request.headers['host'] = r.hostname
- tea_request.port = r.port
- tea_request.protocol = r.scheme or self._protocol or 'http'
- tea_request.method = 'GET'
- tea_request.pathname = r.path
- for key, values in parse_qs(r.query).items():
- for value in values:
- tea_request.query[key] = value
- response = await TeaCore.async_do_action(tea_request, self._runtime_options)
- if response.status_code != 200:
- raise CredentialException(
- f'error refreshing credentials from {self._uri}, http_code={str(response.status_code)}, result: {response.body.decode("utf-8")}')
- body = response.body.decode('utf-8')
- dic = json.loads(body)
- content_code = dic.get('Code')
- if content_code != "Success" or 'AccessKeyId' not in dic or 'AccessKeySecret' not in dic or 'SecurityToken' not in dic or 'Expiration' not in dic:
- raise CredentialException(
- f'error retrieving credentials from {self._uri} result: {response.body.decode("utf-8")}')
- # 先转换为时间数组
- time_array = time.strptime(dic.get('Expiration'), '%Y-%m-%dT%H:%M:%SZ')
- # 转换为时间戳
- expiration = calendar.timegm(time_array)
- credentials = Credentials(
- access_key_id=dic.get('AccessKeyId'),
- access_key_secret=dic.get('AccessKeySecret'),
- security_token=dic.get('SecurityToken'),
- expiration=expiration,
- provider_name=self.get_provider_name()
- )
- return RefreshResult(value=credentials,
- stale_time=_get_stale_time(expiration))
- def get_provider_name(self) -> str:
- return 'credential_uri'
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