feat: Add new gcloud commands, API clients, and third-party libraries across various services.

gcloud auth application-default login/google-cloud-sdk/lib/third_party/google_auth_httplib2/LICENSE

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gcloud auth application-default login/google-cloud-sdk/lib/third_party/google_auth_httplib2/__init__.py

@@ -0,0 +1,307 @@
+# Copyright 2016 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Transport adapter for httplib2."""
+
+from __future__ import absolute_import
+
+import logging
+
+from google.auth import exceptions
+from google.auth import transport
+import httplib2
+from six.moves import http_client
+
+
+_LOGGER = logging.getLogger(__name__)
+# Properties present in file-like streams / buffers.
+_STREAM_PROPERTIES = ("read", "seek", "tell")
+
+
+class _Response(transport.Response):
+    """httplib2 transport response adapter.
+
+    Args:
+        response (httplib2.Response): The raw httplib2 response.
+        data (bytes): The response body.
+    """
+
+    def __init__(self, response, data):
+        self._response = response
+        self._data = data
+
+    @property
+    def status(self):
+        """int: The HTTP status code."""
+        return self._response.status
+
+    @property
+    def headers(self):
+        """Mapping[str, str]: The HTTP response headers."""
+        return dict(self._response)
+
+    @property
+    def data(self):
+        """bytes: The response body."""
+        return self._data
+
+
+class Request(transport.Request):
+    """httplib2 request adapter.
+
+    This class is used internally for making requests using various transports
+    in a consistent way. If you use :class:`AuthorizedHttp` you do not need
+    to construct or use this class directly.
+
+    This class can be useful if you want to manually refresh a
+    :class:`~google.auth.credentials.Credentials` instance::
+
+        import google_auth_httplib2
+        import httplib2
+
+        http = httplib2.Http()
+        request = google_auth_httplib2.Request(http)
+
+        credentials.refresh(request)
+
+    Args:
+        http (httplib2.Http): The underlying http object to use to make
+            requests.
+
+    .. automethod:: __call__
+    """
+
+    def __init__(self, http):
+        self.http = http
+
+    def __call__(
+        self, url, method="GET", body=None, headers=None, timeout=None, **kwargs
+    ):
+        """Make an HTTP request using httplib2.
+
+        Args:
+            url (str): The URI to be requested.
+            method (str): The HTTP method to use for the request. Defaults
+                to 'GET'.
+            body (bytes): The payload / body in HTTP request.
+            headers (Mapping[str, str]): Request headers.
+            timeout (Optional[int]): The number of seconds to wait for a
+                response from the server. This is ignored by httplib2 and will
+                issue a warning.
+            kwargs: Additional arguments passed throught to the underlying
+                :meth:`httplib2.Http.request` method.
+
+        Returns:
+            google.auth.transport.Response: The HTTP response.
+
+        Raises:
+            google.auth.exceptions.TransportError: If any exception occurred.
+        """
+        if timeout is not None:
+            _LOGGER.warning(
+                "httplib2 transport does not support per-request timeout. "
+                "Set the timeout when constructing the httplib2.Http instance."
+            )
+
+        try:
+            _LOGGER.debug("Making request: %s %s", method, url)
+            response, data = self.http.request(
+                url, method=method, body=body, headers=headers, **kwargs
+            )
+            return _Response(response, data)
+        # httplib2 should catch the lower http error, this is a bug and
+        # needs to be fixed there.  Catch the error for the meanwhile.
+        except (httplib2.HttpLib2Error, http_client.HTTPException) as exc:
+            raise exceptions.TransportError(exc)
+
+
+def _make_default_http():
+    """Returns a default httplib2.Http instance."""
+    return httplib2.Http()
+
+
+class AuthorizedHttp(object):
+    """A httplib2 HTTP class with credentials.
+
+    This class is used to perform requests to API endpoints that require
+    authorization::
+
+        from google.auth.transport._httplib2 import AuthorizedHttp
+
+        authed_http = AuthorizedHttp(credentials)
+
+        response = authed_http.request(
+            'https://www.googleapis.com/storage/v1/b')
+
+    This class implements :meth:`request` in the same way as
+    :class:`httplib2.Http` and can usually be used just like any other
+    instance of :class:``httplib2.Http`.
+
+    The underlying :meth:`request` implementation handles adding the
+    credentials' headers to the request and refreshing credentials as needed.
+    """
+
+    def __init__(
+        self,
+        credentials,
+        http=None,
+        refresh_status_codes=transport.DEFAULT_REFRESH_STATUS_CODES,
+        max_refresh_attempts=transport.DEFAULT_MAX_REFRESH_ATTEMPTS,
+    ):
+        """
+        Args:
+            credentials (google.auth.credentials.Credentials): The credentials
+                to add to the request.
+            http (httplib2.Http): The underlying HTTP object to
+                use to make requests. If not specified, a
+                :class:`httplib2.Http` instance will be constructed.
+            refresh_status_codes (Sequence[int]): Which HTTP status codes
+                indicate that credentials should be refreshed and the request
+                should be retried.
+            max_refresh_attempts (int): The maximum number of times to attempt
+                to refresh the credentials and retry the request.
+        """
+
+        if http is None:
+            http = _make_default_http()
+
+        self.http = http
+        self.credentials = credentials
+        self._refresh_status_codes = refresh_status_codes
+        self._max_refresh_attempts = max_refresh_attempts
+        # Request instance used by internal methods (for example,
+        # credentials.refresh).
+        self._request = Request(self.http)
+
+    def close(self):
+        """Calls httplib2's Http.close"""
+        self.http.close()
+
+    def request(
+        self,
+        uri,
+        method="GET",
+        body=None,
+        headers=None,
+        redirections=httplib2.DEFAULT_MAX_REDIRECTS,
+        connection_type=None,
+        **kwargs
+    ):
+        """Implementation of httplib2's Http.request."""
+
+        _credential_refresh_attempt = kwargs.pop("_credential_refresh_attempt", 0)
+
+        # Make a copy of the headers. They will be modified by the credentials
+        # and we want to pass the original headers if we recurse.
+        request_headers = headers.copy() if headers is not None else {}
+
+        self.credentials.before_request(self._request, method, uri, request_headers)
+
+        # Check if the body is a file-like stream, and if so, save the body
+        # stream position so that it can be restored in case of refresh.
+        body_stream_position = None
+        if all(getattr(body, stream_prop, None) for stream_prop in _STREAM_PROPERTIES):
+            body_stream_position = body.tell()
+
+        # Make the request.
+        response, content = self.http.request(
+            uri,
+            method,
+            body=body,
+            headers=request_headers,
+            redirections=redirections,
+            connection_type=connection_type,
+            **kwargs
+        )
+
+        # If the response indicated that the credentials needed to be
+        # refreshed, then refresh the credentials and re-attempt the
+        # request.
+        # A stored token may expire between the time it is retrieved and
+        # the time the request is made, so we may need to try twice.
+        if (
+            response.status in self._refresh_status_codes
+            and _credential_refresh_attempt < self._max_refresh_attempts
+        ):
+
+            _LOGGER.info(
+                "Refreshing credentials due to a %s response. Attempt %s/%s.",
+                response.status,
+                _credential_refresh_attempt + 1,
+                self._max_refresh_attempts,
+            )
+
+            self.credentials.refresh(self._request)
+
+            # Restore the body's stream position if needed.
+            if body_stream_position is not None:
+                body.seek(body_stream_position)
+
+            # Recurse. Pass in the original headers, not our modified set.
+            return self.request(
+                uri,
+                method,
+                body=body,
+                headers=headers,
+                redirections=redirections,
+                connection_type=connection_type,
+                _credential_refresh_attempt=_credential_refresh_attempt + 1,
+                **kwargs
+            )
+
+        return response, content
+
+    def add_certificate(self, key, cert, domain, password=None):
+        """Proxy to httplib2.Http.add_certificate."""
+        self.http.add_certificate(key, cert, domain, password=password)
+
+    @property
+    def connections(self):
+        """Proxy to httplib2.Http.connections."""
+        return self.http.connections
+
+    @connections.setter
+    def connections(self, value):
+        """Proxy to httplib2.Http.connections."""
+        self.http.connections = value
+
+    @property
+    def follow_redirects(self):
+        """Proxy to httplib2.Http.follow_redirects."""
+        return self.http.follow_redirects
+
+    @follow_redirects.setter
+    def follow_redirects(self, value):
+        """Proxy to httplib2.Http.follow_redirects."""
+        self.http.follow_redirects = value
+
+    @property
+    def timeout(self):
+        """Proxy to httplib2.Http.timeout."""
+        return self.http.timeout
+
+    @timeout.setter
+    def timeout(self, value):
+        """Proxy to httplib2.Http.timeout."""
+        self.http.timeout = value
+
+    @property
+    def redirect_codes(self):
+        """Proxy to httplib2.Http.redirect_codes."""
+        return self.http.redirect_codes
+
+    @redirect_codes.setter
+    def redirect_codes(self, value):
+        """Proxy to httplib2.Http.redirect_codes."""
+        self.http.redirect_codes = value