o
    iH.                     @   sT  d Z ddlZddlmZ ddlZddlZddlZddlm	Z	 ddl
mZ ddl
mZ ddl
mZ ddl
mZ eeZeejdZesKeejdZd	eZd
eejdZdZdZeeiZz
eeddZW n eyw   dZY nw dZ dZ!dd Z"dd Z#edfddZ$edddddfddZ%dd Z&dd Z'd$d d!Z(d%d"d#Z)dS )&zProvides helper methods for talking to the Compute Engine metadata server.

See https://cloud.google.com/compute/docs/metadata for more details.
    N)urljoin)_helpers)environment_vars)
exceptions)metricszmetadata.google.internalzhttp://{}/computeMetadata/v1/z	http://{}z169.254.169.254zmetadata-flavorGoogleGCE_METADATA_TIMEOUT   z/sys/class/dmi/id/product_namec                 C   s    t | rdS tjdkrdS t S )a  Checks to see if the code runs on Google Compute Engine

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.

    Returns:
        bool: True if the code runs on Google Compute Engine, False otherwise.
    TntF)pingosnamedetect_gce_residency_linuxrequest r   _/var/www/edux/Edux_v2/venv/lib/python3.10/site-packages/google/auth/compute_engine/_metadata.py	is_on_gceB   s
   

r   c                  C   sZ   zt td} |   }W d   n1 sw   Y  W n
 ty'   Y dS w |tS )zDetect Google Compute Engine residency by smbios check on Linux

    Returns:
        bool: True if the GCE product name file is detected, False otherwise.
    rNF)open_GCE_PRODUCT_NAME_FILEreadstrip	Exception
startswith_GOOGLE)file_objcontentr   r   r   r   W   s   
r   c              
   C   s   d}t  }t |tj< ||k rPz| td||d}|jt}|j	t
jko)|tkW S  tjyK } ztd|d || |d7 }W Y d}~nd}~ww ||k sdS )a  Checks to see if the metadata server is available.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.
        timeout (int): How long to wait for the metadata server to respond.
        retry_count (int): How many times to attempt connecting to metadata
            server using above timeout.

    Returns:
        bool: True if the metadata server is reachable, False otherwise.
    r   GET)urlmethodheaderstimeoutJCompute Engine Metadata server unavailable on attempt %s of %s. Reason: %s   NF)_METADATA_HEADERScopyr   mds_pingAPI_CLIENT_HEADER_METADATA_IP_ROOTr!   get_METADATA_FLAVOR_HEADERstatushttp_clientOK_METADATA_FLAVOR_VALUEr   TransportError_LOGGERwarning)r   r"   retry_countretriesr!   responsemetadata_flavorer   r   r   r   g   s0   r   F   c              
   C   s\  t ||}|du ri n|}	t }
|r|
| |rd|	d< t||	}d}||k rYz	| |d|
d}W n- tjyT } zt	d|d || |d7 }W Y d}~nd}~ww ||k s*td	
|t|j}|jtjkrq|rqdS |jtjkrt|jd
 dkrzt|W S  ty } ztd
|}||d}~ww |S td
||j|j|)a  Fetch a resource from the metadata server.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.
        path (str): The resource to retrieve. For example,
            ``'instance/service-accounts/default'``.
        root (str): The full path to the metadata server root.
        params (Optional[Mapping[str, str]]): A mapping of query parameter
            keys to values.
        recursive (bool): Whether to do a recursive query of metadata. See
            https://cloud.google.com/compute/docs/metadata#aggcontents for more
            details.
        retry_count (int): How many times to attempt connecting to metadata
            server using above timeout.
        headers (Optional[Mapping[str, str]]): Headers for the request.
        return_none_for_not_found_error (Optional[bool]): If True, returns None
            for 404 error instead of throwing an exception.

    Returns:
        Union[Mapping, str]: If the metadata server returns JSON, a mapping of
            the decoded JSON is return. Otherwise, the response content is
            returned as a string.

    Raises:
        google.auth.exceptions.TransportError: if an error occurred while
            retrieving metadata.
    Ntrue	recursiver   r   )r   r    r!   r#   r$   zqFailed to retrieve {} from the Google Compute Engine metadata service. Compute Engine Metadata server unavailablezcontent-typezapplication/jsonzMReceived invalid JSON from the Google Compute Engine metadata service: {:.20}z^Failed to retrieve {} from the Google Compute Engine metadata service. Status: {} Response:
{})r   r%   r&   updater   update_queryr   r0   r1   r2   format
from_bytesdatar,   r-   	NOT_FOUNDr.   parse_content_typer!   jsonloads
ValueError)r   pathrootparamsr:   r3   r!   return_none_for_not_found_errorbase_urlquery_paramsheaders_to_user   r4   r5   r7   r   
caught_excnew_excr   r   r   r*      sj   
&

r*   c                 C   s
   t | dS )aO  Get the Google Cloud Project ID from the metadata server.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.

    Returns:
        str: The project ID

    Raises:
        google.auth.exceptions.TransportError: if an error occurred while
            retrieving metadata.
    zproject/project-idr*   r   r   r   r   get_project_id   s   
rO   c                 C   s   t | ddd}|sdS |S )a  Get the universe domain value from the metadata server.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.

    Returns:
        str: The universe domain value. If the universe domain endpoint is not
        not found, return the default value, which is googleapis.com

    Raises:
        google.auth.exceptions.TransportError: if an error other than
            404 occurs while retrieving metadata.
    zuniverse/universe_domainT)rH   zgoogleapis.comrN   )r   universe_domainr   r   r   get_universe_domain  s   rQ   defaultc                 C   s   d |}t| |ddidS )a  Get information about a service account from the metadata server.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.
        service_account (str): The string 'default' or a service account email
            address. The determines which service account for which to acquire
            information.

    Returns:
        Mapping: The service account's information, for example::

            {
                'email': '...',
                'scopes': ['scope', ...],
                'aliases': ['default', '...']
            }

    Raises:
        google.auth.exceptions.TransportError: if an error occurred while
            retrieving metadata.
    zinstance/service-accounts/{0}/r:   r9   )rG   )r=   r*   )r   service_accountrE   r   r   r   get_service_account_info$  s   
rT   c                 C   sr   |rt |tsd|}d|i}nd}tjt i}d|}t| |||d}t	 t
j|d d }|d |fS )	a  Get the OAuth 2.0 access token for a service account.

    Args:
        request (google.auth.transport.Request): A callable used to make
            HTTP requests.
        service_account (str): The string 'default' or a service account email
            address. The determines which service account for which to acquire
            an access token.
        scopes (Optional[Union[str, List[str]]]): Optional string or list of
            strings with auth scopes.
    Returns:
        Tuple[str, datetime]: The access token and its expiration.

    Raises:
        google.auth.exceptions.TransportError: if an error occurred while
            retrieving metadata.
    ,scopesNz#instance/service-accounts/{0}/token)rG   r!   
expires_in)secondsaccess_token)
isinstancestrjoinr   r(   token_request_access_token_mdsr=   r*   r   utcnowdatetime	timedelta)r   rS   rV   rG   metrics_headerrE   
token_jsontoken_expiryr   r   r   get_service_account_tokenA  s   





rd   )rR   )rR   N)*__doc__r_   http.clientclientr-   rB   loggingr   urllib.parser   google.authr   r   r   r   	getLogger__name__r1   getenvGCE_METADATA_HOST_GCE_METADATA_HOSTGCE_METADATA_ROOTr=   _METADATA_ROOTGCE_METADATA_IPr)   r+   r/   r%   int_METADATA_DEFAULT_TIMEOUTrD   r   r   r   r   r   r*   rO   rQ   rT   rd   r   r   r   r   <module>   sZ   

3
e
