a !fU@sdZddlZddlZddlZddlmZddlmZddl m Z ddl m Z ddl m Z d ed d Zd d iZedfd dZdddZdddZdS)zProvides helper methods for talking to the Compute Engine metadata server. See https://cloud.google.com/compute/docs/metadata N) http_client)parse)_helpers)client) transportzhttp://{}/computeMetadata/v1/ZGCE_METADATA_ROOTzmetadata.google.internalzMetadata-FlavorZGooglecCsvt||}t|d|}tj||td\}}|jtj kr`t |}|ddkrZt |S|Snt d||dS)aFetch a resource from the metadata server. Args: http: an object to be used to make HTTP requests. path: A string indicating the resource to retrieve. For example, 'instance/service-accounts/default' root: A string indicating the full path to the metadata server root. recursive: A boolean indicating whether to do a recursive query of metadata. See https://cloud.google.com/compute/docs/metadata#aggcontents Returns: A dictionary if the metadata server returns JSON, otherwise a string. Raises: http_client.HTTPException if an error corrured while retrieving metadata. recursive)headersz content-typezapplication/jsonzTFailed to retrieve {0} from the Google Compute Enginemetadata service. Response: {1}N)urlparseurljoinrZ_add_query_parameterrrequestMETADATA_HEADERSstatusrOKZ _from_bytesjsonloads HTTPExceptionformat)httppathrootrurlresponsecontentdecodedr_/var/www/html/python-backend/venv/lib/python3.9/site-packages/oauth2client/contrib/_metadata.pyget%s      rdefaultcCst|d|ddS)aqGet information about a service account from the metadata server. Args: http: an object to be used to make HTTP requests. service_account: An email specifying the service account for which to look up information. Default will be information for the "default" service account of the current compute engine instance. Returns: A dictionary with information about the specified service account, for example: { 'email': '...', 'scopes': ['scope', ...], 'aliases': ['default', '...'] } zinstance/service-accounts/{0}/T)r)rr)rservice_accountrrrget_service_account_infoJs rcCs4t|d|}ttj|dd}|d|fS)a#Fetch an oauth token for the Args: http: an object to be used to make HTTP requests. service_account: An email specifying the service account this token should represent. Default will be a token for the "default" service account of the current compute engine instance. Returns: A tuple of (access token, token expiration), where access token is the access token as a string and token expiration is a datetime object that indicates when the access token will expire. z#instance/service-accounts/{0}/tokenZ expires_in)secondsZ access_token)rrrZ_UTCNOWdatetime timedelta)rrZ token_jsonZ token_expiryrrr get_tokencs r#)r)r)__doc__r!rosZ six.movesrZsix.moves.urllibrr Z oauth2clientrrrrgetenvZ METADATA_ROOTr rrr#rrrrs      %