eBdZddlZddlZddlmZddlmZddlZddlm Z ddlm Z ddlm Z ddlm Z ddlm Z d gZd Zd Zd Zd ZdZdZ ddZGdde j,e j.e j0ZGdde j.Zy)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/tokencr|xstj|}tj|j d}||d||}t |j dr|j jdn |j }|jtjk7rtjt| tj|}|d} tj |dd} | | fS#t"t$f$r1} tjdjt|} | | d } ~ wwxYw) 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 principalrriam_endpoint_override iam_endpointresponse response_bodytoken_responsetokenexpiry caught_excnew_excs ?platform/bq/third_party/google/auth/impersonated_credentials.py_make_iam_token_requestr/As,)KM,@,@,KL ::d  " "7 +D<dSH 8==( +  W% ]] +..(%%nmDD&M2}-"">,#?AUVf} j !&)) D K K     :%&s?6C66D6,D11D6cLeZdZdZdeddffd ZdZeje jdZ dZ dZ edZed Zed Zed Zeje j&d Zeje j*dd ZxZS) 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) Nc tt| tj||_t |jt jrk|jjt|_t|jdr1|jjr|jjd||_ ||_||_|xst |_d|_t'j(|_||_||_y)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)superr1__init__copy_source_credentials isinstancerScoped with_scopes _IAM_SCOPEr_always_use_jwt_accessr3_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__s r.r5zCredentials.__init__sL k4)+#'99-?#@  d.. 0B0B C'+'?'?'K'KJ'WD $002KL,,CC((@@F!1+#!A%A oo' !1&;#c"tjSN)rCRED_TYPE_SA_IMPERSONATErEs r._metric_header_for_usagez$Credentials._metric_header_for_usages///rMc&|j|yrO) _update_token)rEr#s r.refreshzCredentials.refreshs 7#rMcB|jjtjjk(s1|jjtjj k(r|jj ||j|jt|jdzd}ddtjtji}|jj|t||j |||j"\|_|_y)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)rIscoperJ Content-Typeapplication/json)r#r$rrr%N)r7 token_stater TokenStateSTALEINVALIDrUr?r>strrArAPI_CLIENT_HEADER&token_request_access_token_impersonateapplyr/r=rDr*r+)rEr#rrs r.rTzCredentials._update_tokens  $ $ 0 0K4J4J4P4P P''33{7M7M7U7UU  $ $ , ,W 5((DNN+c1  .  % %w'U'U'W    &&w/"9,,"&"="= #  DKrMc8ddlm}tj|j}t j |jd|jd}ddi}||j} |j|||}|j|jtjk7r2tj dj|j#t j$|j#d S#|jwxYw) NrAuthorizedSessionr )payloadrIrYrZ)r rrzError calling sign_bytes: {} signedBlob)google.auth.transport.requestsre_IAM_SIGN_ENDPOINTrr=base64 b64encoderr?r7postclose status_coderrrTransportErrorr b64decode)rEmessagereiam_sign_endpointrrauthed_sessionr's r. sign_byteszCredentials.sign_bytes#sD.55d6L6LM''077@  "#56*4+C+CD #%**%wT+H  "   ;>> 1++.55hmmoF   =>>  "s .DDc|jSrOr=rQs r. signer_emailzCredentials.signer_email?%%%rMc|jSrOrvrQs r.service_account_emailz!Credentials.service_account_emailCrxrMc|SrOrQs r.signerzCredentials.signerGs rMc|j SrO)r>rQs r.requires_scopeszCredentials.requires_scopesKs&&&&rMc |j|j|j|j|j|j ||j SN)rGrHrIrJrKr%)rLr7r=r>r?rArDrErKs r.with_quota_projectzCredentials.with_quota_projectOsM~~  $ $!33--oo^^-"&"="=  rMc |j|j|j|xs||j|j|j |j Sr)rLr7r=r?rArCrD)rEscopesdefault_scopess r.r:zCredentials.with_scopes[sR~~  $ $!33 2Noo^^!33"&"="=  rMrO)__name__ __module__ __qualname____doc__r@r5rRrcopy_docstringrr1rUrTrtpropertyrwrzr}rCredentialsWithQuotaProjectrr9r: __classcell__rLs@r.r1r1xs;D-"<<|0X[445$6$$ L?8&&&&''X[DDE  F  X[//0  1  rMr1ceZdZdZ dfd Zd dZdZdZeje jdZ eje jdZxZS) IDTokenCredentialszAOpen ID Connect ID Token-based service account credentials. ctt| t|tst j d||_||_||_ ||_ y)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) r4rr5r8r1rGoogleAuthError_target_credentials_target_audience_include_emailrC)rEtarget_credentialstarget_audience include_emailrKrLs r.r5zIDTokenCredentials.__init__msV  $02,k:,,I $6 /+!1rMcT|j|||j|jSN)rrrrK)rLrrC)rErrs r.from_credentialsz#IDTokenCredentials.from_credentialss0~~1+--!33   rMch|j|j||j|jSr)rLrrrC)rErs r.with_target_audiencez'IDTokenCredentials.with_target_audiences6~~#77+--!33   rMch|j|j|j||jSr)rLrrrC)rErs r.with_include_emailz%IDTokenCredentials.with_include_emails6~~#77 11'!33   rMch|j|j|j|j|Sr)rLrrrrs r.rz%IDTokenCredentials.with_quota_projects6~~#77 11---   rMc4ddlm}tj|jj }|j |jj|jd}ddtjtji}||jj|} |j||tj|j!d}|j#|j$t&j(k7r2t+j,d j|j|jd }||_t1j2t5j6|d d |_y#|j#wxYw)Nrrd)audiencerI includeEmailrYrZ) auth_requestr )r rrzError getting ID token: {}r*F)verifyexp)rhre_IAM_IDTOKEN_ENDPOINTrrrwrr?rrr`"token_request_id_token_impersonater7rlrrrrmrnrrrrr*rutcfromtimestamprrr+) rEr#rerrrrrsr'id_tokens r.rUzIDTokenCredentials.refreshs[D188  $ $ 1 1  --11<< //  .  % %w'Q'Q'S  +  $ $ 8 8w  #%**%ZZ%,,W5+H  "   ;>> 1)),33HMMOD ==?7+ // JJx .u 5    "s #6FF)NFNrO)rrrrr5rrrrrrrrr1rUrrs@r.rrhsv 26   X[DDE F X[445( 6( rMrrO)rrjr6r http.clientclientrr google.authrrrrrr;rrirrr@_DEFAULT_TOKEN_URIr/r9rSigningr1rr|rMr.rs  ! #"3 4 0 % 6 >#:>B4&nm  ??ATATm `j @@j rM