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<?php
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<?php
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namespace Aws\Signature;
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namespace Aws\Signature;
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use Aws\Credentials\CredentialsInterface;
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use AWS\CRT\Auth\SignatureType;
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use AWS\CRT\Auth\SigningAlgorithm;
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use Aws\Credentials\CredentialsInterface;
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use AWS\CRT\Auth\SigningConfigAWS;
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use Psr\Http\Message\RequestInterface;
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use Psr\Http\Message\RequestInterface;
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/**
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/**
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        $signingService = $signingService ?: 's3';
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        $signingService = $signingService ?: 's3';
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        return $this->signWithV4a($credentials, $request, $signingService);
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        return $this->signWithV4a($credentials, $request, $signingService);
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    }
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    }
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    /**
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     * @param CredentialsInterface $credentials
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     * @param RequestInterface $request
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     * @param $signingService
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     * @param SigningConfigAWS|null $signingConfig
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     * @return RequestInterface
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     *
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     * Instantiates a separate sigv4a signing config.  All services except S3
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     * use double encoding.  All services except S3 require path normalization.
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     */
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    protected function signWithV4a(
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        CredentialsInterface $credentials,
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        RequestInterface $request,
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        $signingService,
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        ?SigningConfigAWS $signingConfig = null
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    ){
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        $this->verifyCRTLoaded();
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        $credentials_provider = $this->createCRTStaticCredentialsProvider($credentials);
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        $signingConfig = new SigningConfigAWS([
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            'algorithm' => SigningAlgorithm::SIGv4_ASYMMETRIC,
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            'signature_type' => SignatureType::HTTP_REQUEST_HEADERS,
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            'credentials_provider' => $credentials_provider,
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            'signed_body_value' => $this->getPayload($request),
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            'region' => $this->region,
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            'should_normalize_uri_path' => false,
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            'use_double_uri_encode' => false,
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            'service' => $signingService,
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            'date' => time(),
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        ]);
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        return parent::signWithV4a($credentials, $request, $signingService, $signingConfig);
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    }
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    /**
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    /**
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     * Always add a x-amz-content-sha-256 for data integrity.
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     * Always add a x-amz-content-sha-256 for data integrity.
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     *
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     *
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     * {@inheritdoc}
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     * {@inheritdoc}
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     */
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     */
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            $request = $request->withHeader(
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            $request = $request->withHeader(
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                'X-Amz-Content-Sha256',
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                'X-Amz-Content-Sha256',
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                $this->getPresignedPayload($request)
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                $this->getPresignedPayload($request)
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            );
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            );
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        }
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        }
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        if (strpos($request->getUri()->getHost(), "accesspoint.s3-global")) {
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        if (strpos($request->getUri()->getHost(), "accesspoint.s3-global")) {
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            $request = $request->withHeader("x-amz-region-set", "*");
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            $request = $request->withHeader("x-amz-region-set", "*");
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        }
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        }
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