S3 storage 插件能否兼容aws v2 签名

[yangweijie]

杨维杰
4 个月前
⚙️这个扩展很奈斯

filesystem 扩展支持 s3 作为驱动上传文件， 然后aws s3 扩展php8 就不支持v2 签名了，想要使用v2 兼容性加密，需要通过配置里provide 的方法来。

 's3' => [
 'driver' => 's3',
 'root' => 'storage',
 'key' => env('AWS_ACCESS_KEY_ID'),
 'secret' => env('AWS_SECRET_ACCESS_KEY'),
 'region' => env('AWS_DEFAULT_REGION'),
 'bucket' => env('AWS_BUCKET'),
 'url' => env('AWS_URL'),
 'endpoint' => env('AWS_ENDPOINT'),
 'use_path_style_endpoint' => env('AWS_USE_PATH_STYLE_ENDPOINT', false),
 'throw' => true,
 'visibility' => 'public',
 'signature_version'=>'v2',
// 'debug'=>true,
 'http'=>[
// 'debug'=>true,
 'verify'=>false,
 ],
 'signature_provider'=>function($version, $service, $region) {
 switch ($version) {
 case 's3v4':
 case 'v2':
 case 's3':
 return new S3Signature();
 default:
 return null;
 }
 },
 ],

// 下面是上面配置文件用到的类 S3Signature 放入 extend 目录 即可。记得composer 装 league/flysystem-aws-s3-v3 这个包

<?php
/**
 * @copyright Copyright (c) 2016 Robin Appelman <robin@icewind.nl>
 *
 * @author Christoph Wurst <christoph@winzerhof-wurst.at>
 * @author Daniel Kesselberg <mail@danielkesselberg.de>
 * @author Robin Appelman <robin@icewind.nl>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace Signature;

use Aws\Credentials\CredentialsInterface;
use Aws\S3\S3Client;
use Aws\S3\S3UriParser;
use Aws\Signature\SignatureInterface;
use GuzzleHttp\Psr7;
use Psr\Http\Message\RequestInterface;

/**
 * Legacy Amazon S3 signature implementation
 */
class S3Signature implements SignatureInterface {
 /** @var array Query string values that must be signed */
 private $signableQueryString = [
 'acl', 'cors', 'delete', 'lifecycle', 'location', 'logging',
 'notification', 'partNumber', 'policy', 'requestPayment',
 'response-cache-control', 'response-content-disposition',
 'response-content-encoding', 'response-content-language',
 'response-content-type', 'response-expires', 'restore', 'tagging',
 'torrent', 'uploadId', 'uploads', 'versionId', 'versioning',
 'versions', 'website'
 ];

 /** @var array Sorted headers that must be signed */
 private $signableHeaders = ['Content-MD5', 'Content-Type'];

 /** @var \Aws\S3\S3UriParser S3 URI parser */
 private $parser;

 public function __construct() {
 $this->parser = new S3UriParser();
 // Ensure that the signable query string parameters are sorted
 sort($this->signableQueryString);
 }

 public function signRequest(
 RequestInterface $request,
 CredentialsInterface $credentials
 ) {
 $request = $this->prepareRequest($request, $credentials);
 $stringToSign = $this->createCanonicalizedString($request);
 $auth = 'AWS '
 . $credentials->getAccessKeyId() . ':'
 . $this->signString($stringToSign, $credentials);

 return $request->withHeader('Authorization', $auth);
 }

 public function presign(
 RequestInterface $request,
 CredentialsInterface $credentials,
 $expires,
 array $options = []
 ) {
 $query = [];
 // URL encoding already occurs in the URI template expansion. Undo that
 // and encode using the same encoding as GET object, PUT object, etc.
 $uri = $request->getUri();
 $path = S3Client::encodeKey(rawurldecode($uri->getPath()));
 $request = $request->withUri($uri->withPath($path));

 // Make sure to handle temporary credentials
 if ($token = $credentials->getSecurityToken()) {
 $request = $request->withHeader('X-Amz-Security-Token', $token);
 $query['X-Amz-Security-Token'] = $token;
 }

 if ($expires instanceof \DateTime) {
 $expires = $expires->getTimestamp();
 } elseif (!is_numeric($expires)) {
 $expires = strtotime($expires);
 }

 // Set query params required for pre-signed URLs
 $query['AWSAccessKeyId'] = $credentials->getAccessKeyId();
 $query['Expires'] = $expires;
 $query['Signature'] = $this->signString(
 $this->createCanonicalizedString($request, $expires),
 $credentials
 );

 // Move X-Amz-* headers to the query string
 foreach ($request->getHeaders() as $name => $header) {
 $name = strtolower($name);
 if (strpos($name, 'x-amz-') === 0) {
 $query[$name] = implode(',', $header);
 }
 }

 $queryString = http_build_query($query, null, '&', PHP_QUERY_RFC3986);

 return $request->withUri($request->getUri()->withQuery($queryString));
 }

 /**
 * @param RequestInterface $request
 * @param CredentialsInterface $creds
 *
 * @return RequestInterface
 */
 private function prepareRequest(
 RequestInterface $request,
 CredentialsInterface $creds
 ) {
 $modify = [
 'remove_headers' => ['X-Amz-Date'],
 'set_headers' => ['Date' => gmdate(\DateTimeInterface::RFC2822)]
 ];

 // Add the security token header if one is being used by the credentials
 if ($token = $creds->getSecurityToken()) {
 $modify['set_headers']['X-Amz-Security-Token'] = $token;
 }

 return Psr7\Utils::modifyRequest($request, $modify);
 }

 private function signString($string, CredentialsInterface $credentials) {
 return base64_encode(
 hash_hmac('sha1', $string, $credentials->getSecretKey(), true)
 );
 }

 private function createCanonicalizedString(
 RequestInterface $request,
 $expires = null
 ) {
 $buffer = $request->getMethod() . "\n";

 // Add the interesting headers
 foreach ($this->signableHeaders as $header) {
 $buffer .= $request->getHeaderLine($header) . "\n";
 }

 $date = $expires ?: $request->getHeaderLine('date');
 $buffer .= "{$date}\n"
 . $this->createCanonicalizedAmzHeaders($request)
 . $this->createCanonicalizedResource($request);

 return $buffer;
 }

 private function createCanonicalizedAmzHeaders(RequestInterface $request) {
 $headers = [];
 foreach ($request->getHeaders() as $name => $header) {
 $name = strtolower($name);
 if (strpos($name, 'x-amz-') === 0) {
 $value = implode(',', $header);
 if (strlen($value) > 0) {
 $headers[$name] = $name . ':' . $value;
 }
 }
 }

 if (!$headers) {
 return '';
 }

 ksort($headers);

 return implode("\n", $headers) . "\n";
 }

 private function createCanonicalizedResource(RequestInterface $request) {
 $data = $this->parser->parse($request->getUri());
 $buffer = '/';

 if ($data['bucket']) {
 $buffer .= $data['bucket'];
 if (!empty($data['key']) || !$data['path_style']) {
 $buffer .= '/' . $data['key'];
 }
 }

 // Add sub resource parameters if present.
 $query = $request->getUri()->getQuery();

 if ($query) {
 $params = Psr7\Query::parse($query);
 $first = true;
 foreach ($this->signableQueryString as $key) {
 if (array_key_exists($key, $params)) {
 $value = $params[$key];
 $buffer .= $first ? '?' : '&';
 $first = false;
 $buffer .= $key;
 // Don't add values for empty sub-resources
 if (strlen($value)) {
 $buffer .= "={$value}";
 }
 }
 }
 }

 return $buffer;
 }
}

以上代码在天翼云存储可以使用，缺点，路由缓存生成会报错