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* Add Dependencie Update Script * update gitea.com/lunny/levelqueue * update github.com/PuerkitoBio/goquery * update github.com/alecthomas/chroma * update github.com/blevesearch/bleve/v2 * update github.com/caddyserver/certmagic * update github.com/go-enry/go-enry/v2 * update github.com/go-redis/redis/v8 * update github.com/hashicorp/golang-lru * update github.com/klauspost/compress * update github.com/markbates/goth * update github.com/mholt/archiver/v3 * update github.com/microcosm-cc/bluemonday * update github.com/minio/minio-go/v7 * update github.com/olivere/elastic/v7 * update github.com/xanzy/go-gitlab * update github.com/yuin/goldmark
79 lines
4.2 KiB
Go
Vendored
79 lines
4.2 KiB
Go
Vendored
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package google provides support for making OAuth2 authorized and authenticated
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// HTTP requests to Google APIs. It supports the Web server flow, client-side
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// credentials, service accounts, Google Compute Engine service accounts,
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// Google App Engine service accounts and workload identity federation
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// from non-Google cloud platforms.
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//
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// A brief overview of the package follows. For more information, please read
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// https://developers.google.com/accounts/docs/OAuth2
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// and
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// https://developers.google.com/accounts/docs/application-default-credentials.
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// For more information on using workload identity federation, refer to
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// https://cloud.google.com/iam/docs/how-to#using-workload-identity-federation.
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//
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// OAuth2 Configs
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//
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// Two functions in this package return golang.org/x/oauth2.Config values from Google credential
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// data. Google supports two JSON formats for OAuth2 credentials: one is handled by ConfigFromJSON,
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// the other by JWTConfigFromJSON. The returned Config can be used to obtain a TokenSource or
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// create an http.Client.
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//
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// Workload Identity Federation
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//
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// Using workload identity federation, your application can access Google Cloud
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// resources from Amazon Web Services (AWS), Microsoft Azure or any identity
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// provider that supports OpenID Connect (OIDC).
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// Traditionally, applications running outside Google Cloud have used service
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// account keys to access Google Cloud resources. Using identity federation,
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// you can allow your workload to impersonate a service account.
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// This lets you access Google Cloud resources directly, eliminating the
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// maintenance and security burden associated with service account keys.
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//
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// Follow the detailed instructions on how to configure Workload Identity Federation
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// in various platforms:
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//
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// Amazon Web Services (AWS): https://cloud.google.com/iam/docs/access-resources-aws
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// Microsoft Azure: https://cloud.google.com/iam/docs/access-resources-azure
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// OIDC identity provider: https://cloud.google.com/iam/docs/access-resources-oidc
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//
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// For OIDC providers, the library can retrieve OIDC tokens either from a
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// local file location (file-sourced credentials) or from a local server
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// (URL-sourced credentials).
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// For file-sourced credentials, a background process needs to be continuously
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// refreshing the file location with a new OIDC token prior to expiration.
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// For tokens with one hour lifetimes, the token needs to be updated in the file
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// every hour. The token can be stored directly as plain text or in JSON format.
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// For URL-sourced credentials, a local server needs to host a GET endpoint to
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// return the OIDC token. The response can be in plain text or JSON.
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// Additional required request headers can also be specified.
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//
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//
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// Credentials
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//
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// The Credentials type represents Google credentials, including Application Default
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// Credentials.
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//
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// Use FindDefaultCredentials to obtain Application Default Credentials.
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// FindDefaultCredentials looks in some well-known places for a credentials file, and
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// will call AppEngineTokenSource or ComputeTokenSource as needed.
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//
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// Application Default Credentials also support workload identity federation to
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// access Google Cloud resources from non-Google Cloud platforms including Amazon
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// Web Services (AWS), Microsoft Azure or any identity provider that supports
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// OpenID Connect (OIDC). Workload identity federation is recommended for
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// non-Google Cloud environments as it avoids the need to download, manage and
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// store service account private keys locally.
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//
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// DefaultClient and DefaultTokenSource are convenience methods. They first call FindDefaultCredentials,
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// then use the credentials to construct an http.Client or an oauth2.TokenSource.
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//
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// Use CredentialsFromJSON to obtain credentials from either of the two JSON formats
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// described in OAuth2 Configs, above. The TokenSource in the returned value is the
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// same as the one obtained from the oauth2.Config returned from ConfigFromJSON or
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// JWTConfigFromJSON, but the Credentials may contain additional information
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// that is useful is some circumstances.
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package google // import "golang.org/x/oauth2/google"
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