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Current Path : /proc/self/root/home/vmanager/www/vendor/google/cloud-core/src/Testing/System/
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Current File : //proc/self/root/home/vmanager/www/vendor/google/cloud-core/src/Testing/System/KeyManager.php
<?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\Cloud\Core\Testing\System;

use Google\Cloud\Core\Exception\ConflictException;
use Google\Cloud\Core\RequestWrapper;
use GuzzleHttp\Psr7\Request;

/**
 * Manage KMS keys used for system tests.
 */
class KeyManager
{
    const DEFAULT_LOCATION = 'us-west1';

    private $keyFile;
    private $serviceAccountEmail;
    private $projectId;
    private $requestWrapper;
    private $location;

    public function __construct(array $keyFile, $serviceAccountEmail = null, $projectId = null, $location = null)
    {
        $this->keyFile = $keyFile;
        $this->serviceAccountEmail = $serviceAccountEmail
            ?: $keyFile['client_email'];
        $this->projectId = $projectId
            ?: $keyFile['project_id'];
        $this->setLocation($location ?: self::DEFAULT_LOCATION);

        $this->requestWrapper = new RequestWrapper([
            'keyFile' => $this->keyFile,
            'scopes' => ['https://www.googleapis.com/auth/cloud-platform']
        ]);
    }

    /**
     * Set the service account email used for IAM management.
     *
     * @param string $serviceAccountEmail
     */
    public function setServiceAccountEmail($serviceAccountEmail)
    {
        $this->serviceAccountEmail = $serviceAccountEmail;
    }

    /**
     * Set keyring location.
     *
     * Location name may be in upper or lower case.
     *
     * @param string $location
     */
    public function setLocation($location)
    {
        $this->location = strtolower($location);
    }

    /**
     * Get the project data.
     *
     * @param string $projectId [optional] If not provided, uses ID given in
     *        constructor or keyfile.
     * @return array
     */
    public function getProject($projectId = null)
    {
        $projectId = $projectId ?: $this->projectId;
        $uri = 'https://cloudresourcemanager.googleapis.com/v1/projects/%s';

        $res = $this->requestWrapper->send(
            new Request(
                'GET',
                sprintf($uri, $projectId)
            )
        );

        return json_decode($res->getBody(), true);
    }

    /**
     * A helper to get KMS keys and set correct permissions.
     *
     * @param string $keyRingId
     * @param string[] $keyIds
     * @return array
     */
    public function getKeyNames($keyRingId, array $keyIds)
    {
        $keyNames = [];

        $this->buildKeyRing($keyRingId);

        foreach ($keyIds as $keyId) {
            $keyNames[] = $this->getCryptoKeyName(
                $keyRingId,
                $keyId
            );
        }

        return $keyNames;
    }

    /**
     * @param string $keyRingId
     */
    private function buildKeyRing($keyRingId)
    {
        try {
            $this->requestWrapper->send(
                new Request(
                    'POST',
                    sprintf(
                        'https://cloudkms.googleapis.com/v1/projects/%s/locations/%s/keyRings?keyRingId=%s',
                        $this->projectId,
                        $this->location,
                        $keyRingId
                    )
                )
            );
        } catch (ConflictException $ex) {
            // If it already exists, great!
        }
    }

    /**
     * @param string $keyRingId
     * @param string $cryptoKeyId
     * @return string
     */
    private function getCryptoKeyName(
        $keyRingId,
        $cryptoKeyId
    ) {
        $name = null;

        try {
            $uri = 'https://cloudkms.googleapis.com/v1/projects/%s/locations/%s/keyRings/%s/cryptoKeys?cryptoKeyId=%s';

            $response = $this->requestWrapper->send(
                new Request(
                    'POST',
                    sprintf(
                        $uri,
                        $this->projectId,
                        $this->location,
                        $keyRingId,
                        $cryptoKeyId
                    ),
                    [],
                    json_encode(['purpose' => 'ENCRYPT_DECRYPT'])
                )
            );

            $name = json_decode((string) $response->getBody(), true)['name'];
        } catch (ConflictException $ex) {
            $name = sprintf(
                'projects/%s/locations/%s/keyRings/%s/cryptoKeys/%s' ,
                $this->projectId,
                $this->location,
                $keyRingId,
                $cryptoKeyId
            );
        }

        $policy = [
            'policy' => [
                'bindings' => [
                    [
                        'role' => 'roles/cloudkms.cryptoKeyEncrypterDecrypter',
                        'members' => [
                            "serviceAccount:" . $this->serviceAccountEmail
                        ]
                    ]
                ]
            ]
        ];

        $uri = 'https://cloudkms.googleapis.com/v1/projects/%s/locations/' .
            '%s/keyRings/%s/cryptoKeys/%s:setIamPolicy';
        $this->requestWrapper->send(
            new Request(
                'POST',
                sprintf(
                    $uri,
                    $this->projectId,
                    $this->location,
                    $keyRingId,
                    $cryptoKeyId
                ),
                [],
                json_encode($policy)
            )
        );

        return $name;
    }
}
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