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AccessToken.php
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ApplicationDefaultCredentials.php
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CacheTrait.php
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CredentialsLoader.php
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ExternalAccountCredentialSourceInterface.php
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FetchAuthTokenCache.php
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FetchAuthTokenInterface.php
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GCECache.php
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GetQuotaProjectInterface.php
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GetUniverseDomainInterface.php
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Iam.php
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IamSignerTrait.php
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MetricsTrait.php
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OAuth2.php
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ProjectIdProviderInterface.php
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ServiceAccountSignerTrait.php
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SignBlobInterface.php
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UpdateMetadataInterface.php
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UpdateMetadataTrait.php
2.39
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<?php /* * Copyright 2019 Google LLC * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Google\Auth; use phpseclib3\Crypt\PublicKeyLoader; use phpseclib3\Crypt\RSA; /** * Sign a string using a Service Account private key. */ trait ServiceAccountSignerTrait { /** * Sign a string using the service account private key. * * @param string $stringToSign * @param bool $forceOpenssl Whether to use OpenSSL regardless of * whether phpseclib is installed. **Defaults to** `false`. * @return string */ public function signBlob($stringToSign, $forceOpenssl = false) { $privateKey = $this->auth->getSigningKey(); $signedString = ''; if (class_exists(phpseclib3\Crypt\RSA::class) && !$forceOpenssl) { $key = PublicKeyLoader::load($privateKey); $rsa = $key->withHash('sha256')->withPadding(RSA::SIGNATURE_PKCS1); $signedString = $rsa->sign($stringToSign); } elseif (extension_loaded('openssl')) { openssl_sign($stringToSign, $signedString, $privateKey, 'sha256WithRSAEncryption'); } else { // @codeCoverageIgnoreStart throw new \RuntimeException('OpenSSL is not installed.'); } // @codeCoverageIgnoreEnd return base64_encode($signedString); } }