o FhOB@sdZddlZddlZddlmZddlmZddlZddlm Z ddlm Z ddlm Z ddlm Z ddlm Z d gZd Zd Zd Zd ZdZdZ dddZGddde je je jZGddde jZdS)aGoogle Cloud Impersonated credentials. This module provides authentication for applications where local credentials impersonates a remote service account using `IAM Credentials API`_. This class can be used to impersonate a service account as long as the original Credential object has the "Service Account Token Creator" role on the target service account. .. _IAM Credentials API: https://cloud.google.com/iam/credentials/reference/rest/ N)datetime)_helpers) credentials) exceptions)jwt)metricsz#https://www.googleapis.com/auth/iamzZhttps://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/{}:generateAccessTokenzOhttps://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/{}:signBlobzVhttps://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/{}:generateIdTokenz*Unable to acquire impersonated credentialsiz#https://oauth2.googleapis.com/tokenc Cs|pt|}t|d}||d||d}t|jdr#|jdn|j}|jt j kr2t t |zt|}|d} t|dd} | | fWSttfyb} z t dt |} | | d } ~ ww) aMakes a request to the Google Cloud IAM service for an access token. Args: request (Request): The Request object to use. principal (str): The principal to request an access token for. headers (Mapping[str, str]): Map of headers to transmit. body (Mapping[str, str]): JSON Payload body for the iamcredentials API call. iam_endpoint_override (Optiona[str]): The full IAM endpoint override with the target_principal embedded. This is useful when supporting impersonation with regional endpoints. Raises: google.auth.exceptions.TransportError: Raised if there is an underlying HTTP connection error google.auth.exceptions.RefreshError: Raised if the impersonated credentials are not available. Common reasons are `iamcredentials.googleapis.com` is not enabled or the `Service Account Token Creator` is not assigned utf-8POST)urlmethodheadersbodydecode accessToken expireTimez%Y-%m-%dT%H:%M:%SZz6{}: No access token or invalid expiration in response.N) _IAM_ENDPOINTformatjsondumpsencodehasattrdatarstatus http_clientOKr RefreshError_REFRESH_ERRORloadsrstrptimeKeyError ValueError) request principalr r iam_endpoint_override iam_endpointresponse response_bodytoken_responsetokenexpiry caught_excnew_excr,]/var/www/html/loop/nvenv/lib/python3.10/site-packages/google/auth/impersonated_credentials.py_make_iam_token_request@s0     r.cseZdZdZdeddffdd ZddZee j ddZ d d Z d d Z ed dZeddZeddZeddZee jddZee jdddZZS) CredentialsaThis module defines impersonated credentials which are essentially impersonated identities. Impersonated Credentials allows credentials issued to a user or service account to impersonate another. The target service account must grant the originating credential principal the `Service Account Token Creator`_ IAM role: For more information about Token Creator IAM role and IAMCredentials API, see `Creating Short-Lived Service Account Credentials`_. .. _Service Account Token Creator: https://cloud.google.com/iam/docs/service-accounts#the_service_account_token_creator_role .. _Creating Short-Lived Service Account Credentials: https://cloud.google.com/iam/docs/creating-short-lived-service-account-credentials Usage: First grant source_credentials the `Service Account Token Creator` role on the target account to impersonate. In this example, the service account represented by svc_account.json has the token creator role on `impersonated-account@_project_.iam.gserviceaccount.com`. Enable the IAMCredentials API on the source project: `gcloud services enable iamcredentials.googleapis.com`. Initialize a source credential which does not have access to list bucket:: from google.oauth2 import service_account target_scopes = [ 'https://www.googleapis.com/auth/devstorage.read_only'] source_credentials = ( service_account.Credentials.from_service_account_file( '/path/to/svc_account.json', scopes=target_scopes)) Now use the source credentials to acquire credentials to impersonate another service account:: from google.auth import impersonated_credentials target_credentials = impersonated_credentials.Credentials( source_credentials=source_credentials, target_principal='impersonated-account@_project_.iam.gserviceaccount.com', target_scopes = target_scopes, lifetime=500) Resource access is granted:: client = storage.Client(credentials=target_credentials) buckets = client.list_buckets(project='your_project') for bucket in buckets: print(bucket.name) Ncstt|t||_t|jtjr+|jt |_t |jdr+|jj r+|j d||_ ||_||_|p7t|_d|_t|_||_||_dS)aL Args: source_credentials (google.auth.Credentials): The source credential used as to acquire the impersonated credentials. target_principal (str): The service account to impersonate. target_scopes (Sequence[str]): Scopes to request during the authorization grant. delegates (Sequence[str]): The chained list of delegates required to grant the final access_token. If set, the sequence of identities must have "Service Account Token Creator" capability granted to the prceeding identity. For example, if set to [serviceAccountB, serviceAccountC], the source_credential must have the Token Creator role on serviceAccountB. serviceAccountB must have the Token Creator on serviceAccountC. Finally, C must have Token Creator on target_principal. If left unset, source_credential must have that role on target_principal. lifetime (int): Number of seconds the delegated credential should be valid for (upto 3600). quota_project_id (Optional[str]): The project ID used for quota and billing. This project may be different from the project used to create the credentials. iam_endpoint_override (Optiona[str]): The full IAM endpoint override with the target_principal embedded. This is useful when supporting impersonation with regional endpoints. _create_self_signed_jwtN)superr/__init__copy_source_credentials isinstancerScoped with_scopes _IAM_SCOPEr_always_use_jwt_accessr0_target_principal_target_scopes _delegates_DEFAULT_TOKEN_LIFETIME_SECS _lifetimer(rutcnowr)_quota_project_id_iam_endpoint_override)selfsource_credentialstarget_principal target_scopes delegateslifetimequota_project_idr# __class__r,r-r2s"&      zCredentials.__init__cCstjSN)rCRED_TYPE_SA_IMPERSONATErBr,r,r-_metric_header_for_usagesz$Credentials._metric_header_for_usagecCs||dSrK) _update_token)rBr!r,r,r-refreshszCredentials.refreshcCs|jjtjjks|jjtjjkr|j||j|jt |j dd}ddt j t i}|j|t||j|||jd\|_|_dS)zUpdates credentials with a new access_token representing the impersonated account. Args: request (google.auth.transport.requests.Request): Request object to use for refreshing credentials. s)rFscoperG Content-Typeapplication/json)r!r"r r r#N)r4 token_stater TokenStateSTALEINVALIDrPr<r;strr>rAPI_CLIENT_HEADER&token_request_access_token_impersonateapplyr.r:rAr(r))rBr!r r r,r,r-rOs$     zCredentials._update_tokencCsddlm}t|j}t|d|jd}ddi}||j }z|j |||d}W| n| w|j t jkrEtd|t|d S) NrAuthorizedSessionr)payloadrFrSrT)r r rzError calling sign_bytes: {} signedBlob)google.auth.transport.requestsr^_IAM_SIGN_ENDPOINTrr:base64 b64encoderr<r4postclose status_coderrrTransportErrorr b64decode)rBmessager^iam_sign_endpointr r authed_sessionr%r,r,r- sign_bytes"s"     zCredentials.sign_bytescC|jSrKr:rMr,r,r- signer_email>zCredentials.signer_emailcCrnrKrorMr,r,r-service_account_emailBrqz!Credentials.service_account_emailcCs|SrKr,rMr,r,r-signerFszCredentials.signercCs|j SrK)r;rMr,r,r-requires_scopesJszCredentials.requires_scopesc Cs$|j|j|j|j|j|j||jdSN)rDrErFrGrHr#)rJr4r:r;r<r>rArBrHr,r,r-with_quota_projectNszCredentials.with_quota_projectc Cs(|j|j|j|p ||j|j|j|jdSru)rJr4r:r<r>r@rA)rBscopesdefault_scopesr,r,r-r7ZszCredentials.with_scopesrK)__name__ __module__ __qualname____doc__r=r2rNrcopy_docstringrr/rPrOrmpropertyrprrrsrtCredentialsWithQuotaProjectrwr6r7 __classcell__r,r,rIr-r/ws0B>  &       r/csjeZdZdZ   dfdd ZdddZdd Zd d Ze e j d d Z e e j ddZZS)IDTokenCredentialszAOpen ID Connect ID Token-based service account credentials. NFcs>tt|t|tstd||_||_||_ ||_ dS)a Args: target_credentials (google.auth.Credentials): The target credential used as to acquire the id tokens for. target_audience (string): Audience to issue the token for. include_email (bool): Include email in IdToken quota_project_id (Optional[str]): The project ID used for quota and billing. z4Provided Credential must be impersonated_credentialsN) r1rr2r5r/rGoogleAuthError_target_credentials_target_audience_include_emailr@)rBtarget_credentialstarget_audience include_emailrHrIr,r-r2ls  zIDTokenCredentials.__init__cCs|j|||j|jdSN)rrrrH)rJrr@)rBrrr,r,r-from_credentialss z#IDTokenCredentials.from_credentialscCs|j|j||j|jdSr)rJrrr@)rBrr,r,r-with_target_audiences z'IDTokenCredentials.with_target_audiencecCs|j|j|j||jdSr)rJrrr@)rBrr,r,r-with_include_emails z%IDTokenCredentials.with_include_emailcCs|j|j|j|j|dSr)rJrrrrvr,r,r-rws z%IDTokenCredentials.with_quota_projectc Csddlm}t|jj}|j|jj|jd}ddt j t i}||jj |d}z|j ||t|dd}W|n|w|jtjkrRtd ||d }||_ttj|d d d |_dS)Nrr])audiencerF includeEmailrSrT) auth_requestr)r r rzError getting ID token: {}r(F)verifyexp)rar^_IAM_IDTOKEN_ENDPOINTrrrprr<rrrZ"token_request_id_token_impersonater4rerrrrfrgrrrrr(rutcfromtimestamprrr)) rBr!r^rkr r rlr%id_tokenr,r,r-rPs<      zIDTokenCredentials.refresh)NFNrK)rzr{r|r}r2rrrrr~rrrwr/rPrr,r,rIr-rgs    rrK)r}rcr3r http.clientclientrr google.authrrrrrr8rrbrrr=_DEFAULT_TOKEN_URIr.r6rSigningr/rr,r,r,r-s8         7 q