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# coding=utf-8
# --------------------------------------------------------------------------
#
# Copyright (c) Microsoft Corporation. All rights reserved.
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the ""Software""), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
# --------------------------------------------------------------------------
from typing import Any, TYPE_CHECKING, Optional, Union, Awaitable
from datetime import datetime, timedelta
import jwt
from azure.core.pipeline import PipelineRequest
from azure.core.pipeline.policies import SansIOHTTPPolicy, ProxyPolicy
from azure.core.credentials import AzureKeyCredential
from ._client import WebPubSubServiceClient as WebPubSubServiceClientGenerated
from ._operations._patch import _UTC_TZ
if TYPE_CHECKING:
# pylint: disable=unused-import,ungrouped-imports
from azure.core.credentials import TokenCredential
def _parse_connection_string(connection_string: str, **kwargs: Any) -> Any:
for segment in connection_string.split(";"):
if "=" in segment:
key, value = segment.split("=", 1)
key = key.lower()
if key not in ("version",):
kwargs.setdefault(key, value)
elif segment:
raise ValueError(
"Malformed connection string - expected 'key=value', found segment '{}' in '{}'".format(
segment, connection_string
)
)
if "endpoint" not in kwargs:
raise ValueError("connection_string missing 'endpoint' field")
if "accesskey" not in kwargs:
raise ValueError("connection_string missing 'accesskey' field")
return kwargs
class JwtCredentialPolicy(SansIOHTTPPolicy):
NAME_CLAIM_TYPE = "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"
def __init__(
self,
credential: AzureKeyCredential,
*,
user: Optional[str] = None,
origin_endpoint: Optional[str] = None,
reverse_proxy_endpoint: Optional[str] = None,
) -> None:
"""Create a new instance of the policy associated with the given credential.
:param credential: The azure.core.credentials.AzureKeyCredential instance to use
:type credential: ~azure.core.credentials.AzureKeyCredential
:param user: Optional user name associated with the credential.
:type user: str
"""
self._credential = credential
self._user = user
self._original_url = origin_endpoint
self._reverse_proxy_endpoint = reverse_proxy_endpoint
def on_request(self, request: PipelineRequest) -> Union[None, Awaitable[None]]:
"""Is executed before sending the request from next policy.
:param request: Request to be modified before sent from next policy.
:type request: ~azure.core.pipeline.PipelineRequest
"""
url = request.http_request.url
if self._reverse_proxy_endpoint:
url = url.replace(self._reverse_proxy_endpoint, self._original_url, 1)
request.http_request.headers["Authorization"] = "Bearer " + self._encode(url)
return super(JwtCredentialPolicy, self).on_request(request)
def _encode(self, url: AzureKeyCredential) -> str:
data = {
"aud": url,
"exp": datetime.now(tz=_UTC_TZ()) + timedelta(seconds=60),
}
if self._user:
data[self.NAME_CLAIM_TYPE] = self._user
encoded = jwt.encode(
payload=data,
key=self._credential.key,
algorithm="HS256",
)
return encoded
class ApiManagementProxy(ProxyPolicy):
def __init__(self, **kwargs: Any) -> None:
"""Create a new instance of the policy.
:param endpoint: endpoint to be replaced
:type endpoint: str
:param proxy_endpoint: proxy endpoint
:type proxy_endpoint: str
"""
super(ApiManagementProxy, self).__init__(**kwargs)
self._endpoint = kwargs.pop("origin_endpoint", None)
self._reverse_proxy_endpoint = kwargs.pop("reverse_proxy_endpoint", None)
def on_request(self, request: PipelineRequest) -> None:
"""Is executed before sending the request from next policy.
:param request: Request to be modified before sent from next policy.
:type request: ~azure.core.pipeline.PipelineRequest
"""
super(ApiManagementProxy, self).on_request(request)
if self._endpoint and self._reverse_proxy_endpoint:
request.http_request.url = request.http_request.url.replace(self._endpoint, self._reverse_proxy_endpoint)
class WebPubSubServiceClientBase:
"""Base class for init"""
def __init__(self, endpoint: str, hub: str, credential, **kwargs) -> None:
if kwargs.get("port") and endpoint:
endpoint = endpoint.rstrip("/") + ":{}".format(kwargs.pop("port"))
kwargs["origin_endpoint"] = endpoint
if isinstance(credential, AzureKeyCredential):
kwargs["authentication_policy"] = JwtCredentialPolicy(
credential,
user=kwargs.get("user"),
origin_endpoint=kwargs.get("origin_endpoint"),
reverse_proxy_endpoint=kwargs.get("reverse_proxy_endpoint"),
)
kwargs["proxy_policy"] = kwargs.pop("proxy_policy", ApiManagementProxy(**kwargs))
super().__init__(endpoint=endpoint, hub=hub, credential=credential, **kwargs)
class WebPubSubServiceClient(WebPubSubServiceClientBase, WebPubSubServiceClientGenerated):
"""WebPubSubServiceClient.
:param endpoint: HTTP or HTTPS endpoint for the Web PubSub service instance.
:type endpoint: str
:param hub: Target hub name, which should start with alphabetic characters and only contain
alpha-numeric characters or underscore.
:type hub: str
:param credential: Credential needed for the client to connect to Azure.
:type credential: ~azure.core.credentials.TokenCredential or ~azure.core.credentials.AzureKeyCredential
:keyword api_version: Api Version. The default value is "2021-10-01". Note that overriding this
default value may result in unsupported behavior.
:paramtype api_version: str
"""
def __init__(
self, endpoint: str, hub: str, credential: Union["TokenCredential", AzureKeyCredential], **kwargs: Any
) -> None:
super().__init__(endpoint=endpoint, hub=hub, credential=credential, **kwargs)
@classmethod
def from_connection_string(cls, connection_string: str, hub: str, **kwargs: Any) -> "WebPubSubServiceClient":
"""Create a new WebPubSubServiceClient from a connection string.
:param connection_string: Connection string
:type connection_string: str
:param hub: Target hub name, which should start with alphabetic characters and only contain
alpha-numeric characters or underscore.
:type hub: str
:rtype: WebPubSubServiceClient
"""
kwargs = _parse_connection_string(connection_string, **kwargs)
credential = AzureKeyCredential(kwargs.pop("accesskey"))
return cls(hub=hub, credential=credential, **kwargs)
__all__ = ["WebPubSubServiceClient"]
def patch_sdk():
pass
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