abstract class CredentialsLoader implements FetchAuthTokenInterface, UpdateMetadataInterface (View source)

CredentialsLoader contains the behaviour used to locate and find default credentials files on the file system.

Traits

Provides shared methods for updating request metadata (request headers).

Constants

TOKEN_CREDENTIAL_URI

ENV_VAR

QUOTA_PROJECT_ENV_VAR

WELL_KNOWN_PATH

NON_WINDOWS_WELL_KNOWN_PATH_BASE

MTLS_WELL_KNOWN_PATH

MTLS_CERT_ENV_VAR

Methods

callable
getUpdateMetadataFunc() deprecated

export a callback function which updates runtime metadata.

array
updateMetadata(array $metadata, string $authUri = null, callable $httpHandler = null)

Updates metadata with the authorization token.

static array|null
fromEnv()

Load a JSON key from the path specified in the environment.

static array|null
fromWellKnownFile()

Load a JSON key from a well known path.

makeCredentials(string|string[] $scope, array $jsonKey, string|string[] $defaultScope = null)

Create a new Credentials instance.

static Client
makeHttpClient(FetchAuthTokenInterface $fetcher, array $httpClientOptions = [], callable $httpHandler = null, callable $tokenCallback = null)

Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.

makeInsecureCredentials()

Create a new instance of InsecureCredentials.

static string|null
quotaProjectFromEnv()

Fetch a quota project from the environment variable GOOGLE_CLOUD_QUOTA_PROJECT. Return null if GOOGLE_CLOUD_QUOTA_PROJECT is not specified.

static callable|null
getDefaultClientCertSource()

Gets a callable which returns the default device certification.

static bool
shouldLoadClientCertSource()

Determines whether or not the default device certificate should be loaded.

Details

callable getUpdateMetadataFunc() deprecated

deprecated

export a callback function which updates runtime metadata.

Return Value

callable

updateMetadata function

array updateMetadata(array $metadata, string $authUri = null, callable $httpHandler = null)

Updates metadata with the authorization token.

Parameters

array $metadata

metadata hashmap

string $authUri

optional auth uri

callable $httpHandler

callback which delivers psr7 request

Return Value

array

updated metadata hashmap

static array|null fromEnv()

Load a JSON key from the path specified in the environment.

Load a JSON key from the path specified in the environment variable GOOGLE_APPLICATION_CREDENTIALS. Return null if GOOGLE_APPLICATION_CREDENTIALS is not specified.

Return Value

array|null

JSON key | null

static array|null fromWellKnownFile()

Load a JSON key from a well known path.

The well known path is OS dependent:

  • windows: %APPDATA%/gcloud/application_default_credentials.json
  • others: $HOME/.config/gcloud/application_default_credentials.json

If the file does not exist, this returns null.

Return Value

array|null

JSON key | null

static ServiceAccountCredentials|UserRefreshCredentials|ImpersonatedServiceAccountCredentials|ExternalAccountCredentials makeCredentials(string|string[] $scope, array $jsonKey, string|string[] $defaultScope = null)

Create a new Credentials instance.

Parameters

string|string[] $scope

the scope of the access request, expressed either as an Array or as a space-delimited String.

array $jsonKey

the JSON credentials.

string|string[] $defaultScope

The default scope to use if no user-defined scopes exist, expressed either as an Array or as a space-delimited string.

Return Value

ServiceAccountCredentials|UserRefreshCredentials|ImpersonatedServiceAccountCredentials|ExternalAccountCredentials

static Client makeHttpClient(FetchAuthTokenInterface $fetcher, array $httpClientOptions = [], callable $httpHandler = null, callable $tokenCallback = null)

Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.

Parameters

FetchAuthTokenInterface $fetcher

is used to fetch the auth token

array $httpClientOptions

(optional) Array of request options to apply.

callable $httpHandler

(optional) http client to fetch the token.

callable $tokenCallback

(optional) function to be called when a new token is fetched.

Return Value

Client

static InsecureCredentials makeInsecureCredentials()

Create a new instance of InsecureCredentials.

Return Value

InsecureCredentials

static string|null quotaProjectFromEnv()

Fetch a quota project from the environment variable GOOGLE_CLOUD_QUOTA_PROJECT. Return null if GOOGLE_CLOUD_QUOTA_PROJECT is not specified.

Return Value

string|null

static callable|null getDefaultClientCertSource()

Gets a callable which returns the default device certification.

Return Value

callable|null

Exceptions

UnexpectedValueException

static bool shouldLoadClientCertSource()

Determines whether or not the default device certificate should be loaded.

Return Value

bool