/home/mip/mip/public/img/credit/datatables/Signature.tar
SignatureV4.php 0000644 00000047067 15152066131 0007446 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Credentials\CredentialsInterface;
use AWS\CRT\Auth\Signable;
use AWS\CRT\Auth\SignatureType;
use AWS\CRT\Auth\SignedBodyHeaderType;
use AWS\CRT\Auth\Signing;
use AWS\CRT\Auth\SigningAlgorithm;
use AWS\CRT\Auth\SigningConfigAWS;
use AWS\CRT\Auth\StaticCredentialsProvider;
use AWS\CRT\HTTP\Request;
use Aws\Exception\CommonRuntimeException;
use Aws\Exception\CouldNotCreateChecksumException;
use GuzzleHttp\Psr7;
use Psr\Http\Message\RequestInterface;
/**
* Signature Version 4
* @link http://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
*/
class SignatureV4 implements SignatureInterface
{
use SignatureTrait;
const ISO8601_BASIC = 'Ymd\THis\Z';
const UNSIGNED_PAYLOAD = 'UNSIGNED-PAYLOAD';
const AMZ_CONTENT_SHA256_HEADER = 'X-Amz-Content-Sha256';
/** @var string */
private $service;
/** @var string */
protected $region;
/** @var bool */
private $unsigned;
/** @var bool */
private $useV4a;
/**
* The following headers are not signed because signing these headers
* would potentially cause a signature mismatch when sending a request
* through a proxy or if modified at the HTTP client level.
*
* @return array
*/
protected function getHeaderBlacklist()
{
return [
'cache-control' => true,
'content-type' => true,
'content-length' => true,
'expect' => true,
'max-forwards' => true,
'pragma' => true,
'range' => true,
'te' => true,
'if-match' => true,
'if-none-match' => true,
'if-modified-since' => true,
'if-unmodified-since' => true,
'if-range' => true,
'accept' => true,
'authorization' => true,
'proxy-authorization' => true,
'from' => true,
'referer' => true,
'user-agent' => true,
'X-Amz-User-Agent' => true,
'x-amzn-trace-id' => true,
'aws-sdk-invocation-id' => true,
'aws-sdk-retry' => true,
];
}
/**
* @param string $service Service name to use when signing
* @param string $region Region name to use when signing
* @param array $options Array of configuration options used when signing
* - unsigned-body: Flag to make request have unsigned payload.
* Unsigned body is used primarily for streaming requests.
*/
public function __construct($service, $region, array $options = [])
{
$this->service = $service;
$this->region = $region;
$this->unsigned = isset($options['unsigned-body']) ? $options['unsigned-body'] : false;
$this->useV4a = isset($options['use_v4a']) && $options['use_v4a'] === true;
}
/**
* {@inheritdoc}
*/
public function signRequest(
RequestInterface $request,
CredentialsInterface $credentials,
$signingService = null
) {
$ldt = gmdate(self::ISO8601_BASIC);
$sdt = substr($ldt, 0, 8);
$parsed = $this->parseRequest($request);
$parsed['headers']['X-Amz-Date'] = [$ldt];
if ($token = $credentials->getSecurityToken()) {
$parsed['headers']['X-Amz-Security-Token'] = [$token];
}
$service = isset($signingService) ? $signingService : $this->service;
if ($this->useV4a) {
return $this->signWithV4a($credentials, $request, $service);
}
$cs = $this->createScope($sdt, $this->region, $service);
$payload = $this->getPayload($request);
if ($payload == self::UNSIGNED_PAYLOAD) {
$parsed['headers'][self::AMZ_CONTENT_SHA256_HEADER] = [$payload];
}
$context = $this->createContext($parsed, $payload);
$toSign = $this->createStringToSign($ldt, $cs, $context['creq']);
$signingKey = $this->getSigningKey(
$sdt,
$this->region,
$service,
$credentials->getSecretKey()
);
$signature = hash_hmac('sha256', $toSign, $signingKey);
$parsed['headers']['Authorization'] = [
"AWS4-HMAC-SHA256 "
. "Credential={$credentials->getAccessKeyId()}/{$cs}, "
. "SignedHeaders={$context['headers']}, Signature={$signature}"
];
return $this->buildRequest($parsed);
}
/**
* Get the headers that were used to pre-sign the request.
* Used for the X-Amz-SignedHeaders header.
*
* @param array $headers
* @return array
*/
private function getPresignHeaders(array $headers)
{
$presignHeaders = [];
$blacklist = $this->getHeaderBlacklist();
foreach ($headers as $name => $value) {
$lName = strtolower($name);
if (!isset($blacklist[$lName])
&& $name !== self::AMZ_CONTENT_SHA256_HEADER
) {
$presignHeaders[] = $lName;
}
}
return $presignHeaders;
}
/**
* {@inheritdoc}
*/
public function presign(
RequestInterface $request,
CredentialsInterface $credentials,
$expires,
array $options = []
) {
$startTimestamp = isset($options['start_time'])
? $this->convertToTimestamp($options['start_time'], null)
: time();
$expiresTimestamp = $this->convertToTimestamp($expires, $startTimestamp);
if ($this->useV4a) {
return $this->presignWithV4a(
$request,
$credentials,
$this->convertExpires($expiresTimestamp, $startTimestamp)
);
}
$parsed = $this->createPresignedRequest($request, $credentials);
$payload = $this->getPresignedPayload($request);
$httpDate = gmdate(self::ISO8601_BASIC, $startTimestamp);
$shortDate = substr($httpDate, 0, 8);
$scope = $this->createScope($shortDate, $this->region, $this->service);
$credential = $credentials->getAccessKeyId() . '/' . $scope;
if ($credentials->getSecurityToken()) {
unset($parsed['headers']['X-Amz-Security-Token']);
}
$parsed['query']['X-Amz-Algorithm'] = 'AWS4-HMAC-SHA256';
$parsed['query']['X-Amz-Credential'] = $credential;
$parsed['query']['X-Amz-Date'] = gmdate('Ymd\THis\Z', $startTimestamp);
$parsed['query']['X-Amz-SignedHeaders'] = implode(';', $this->getPresignHeaders($parsed['headers']));
$parsed['query']['X-Amz-Expires'] = $this->convertExpires($expiresTimestamp, $startTimestamp);
$context = $this->createContext($parsed, $payload);
$stringToSign = $this->createStringToSign($httpDate, $scope, $context['creq']);
$key = $this->getSigningKey(
$shortDate,
$this->region,
$this->service,
$credentials->getSecretKey()
);
$parsed['query']['X-Amz-Signature'] = hash_hmac('sha256', $stringToSign, $key);
return $this->buildRequest($parsed);
}
/**
* Converts a POST request to a GET request by moving POST fields into the
* query string.
*
* Useful for pre-signing query protocol requests.
*
* @param RequestInterface $request Request to clone
*
* @return RequestInterface
* @throws \InvalidArgumentException if the method is not POST
*/
public static function convertPostToGet(RequestInterface $request, $additionalQueryParams = "")
{
if ($request->getMethod() !== 'POST') {
throw new \InvalidArgumentException('Expected a POST request but '
. 'received a ' . $request->getMethod() . ' request.');
}
$sr = $request->withMethod('GET')
->withBody(Psr7\Utils::streamFor(''))
->withoutHeader('Content-Type')
->withoutHeader('Content-Length');
// Move POST fields to the query if they are present
if ($request->getHeaderLine('Content-Type') === 'application/x-www-form-urlencoded') {
$body = (string) $request->getBody() . $additionalQueryParams;
$sr = $sr->withUri($sr->getUri()->withQuery($body));
}
return $sr;
}
protected function getPayload(RequestInterface $request)
{
if ($this->unsigned && $request->getUri()->getScheme() == 'https') {
return self::UNSIGNED_PAYLOAD;
}
// Calculate the request signature payload
if ($request->hasHeader(self::AMZ_CONTENT_SHA256_HEADER)) {
// Handle streaming operations (e.g. Glacier.UploadArchive)
return $request->getHeaderLine(self::AMZ_CONTENT_SHA256_HEADER);
}
if (!$request->getBody()->isSeekable()) {
throw new CouldNotCreateChecksumException('sha256');
}
try {
return Psr7\Utils::hash($request->getBody(), 'sha256');
} catch (\Exception $e) {
throw new CouldNotCreateChecksumException('sha256', $e);
}
}
protected function getPresignedPayload(RequestInterface $request)
{
return $this->getPayload($request);
}
protected function createCanonicalizedPath($path)
{
$doubleEncoded = rawurlencode(ltrim($path, '/'));
return '/' . str_replace('%2F', '/', $doubleEncoded);
}
private function createStringToSign($longDate, $credentialScope, $creq)
{
$hash = hash('sha256', $creq);
return "AWS4-HMAC-SHA256\n{$longDate}\n{$credentialScope}\n{$hash}";
}
private function createPresignedRequest(
RequestInterface $request,
CredentialsInterface $credentials
) {
$parsedRequest = $this->parseRequest($request);
// Make sure to handle temporary credentials
if ($token = $credentials->getSecurityToken()) {
$parsedRequest['headers']['X-Amz-Security-Token'] = [$token];
}
return $this->moveHeadersToQuery($parsedRequest);
}
/**
* @param array $parsedRequest
* @param string $payload Hash of the request payload
* @return array Returns an array of context information
*/
private function createContext(array $parsedRequest, $payload)
{
$blacklist = $this->getHeaderBlacklist();
// Normalize the path as required by SigV4
$canon = $parsedRequest['method'] . "\n"
. $this->createCanonicalizedPath($parsedRequest['path']) . "\n"
. $this->getCanonicalizedQuery($parsedRequest['query']) . "\n";
// Case-insensitively aggregate all of the headers.
$aggregate = [];
foreach ($parsedRequest['headers'] as $key => $values) {
$key = strtolower($key);
if (!isset($blacklist[$key])) {
foreach ($values as $v) {
$aggregate[$key][] = $v;
}
}
}
ksort($aggregate);
$canonHeaders = [];
foreach ($aggregate as $k => $v) {
if (count($v) > 0) {
sort($v);
}
$canonHeaders[] = $k . ':' . preg_replace('/\s+/', ' ', implode(',', $v));
}
$signedHeadersString = implode(';', array_keys($aggregate));
$canon .= implode("\n", $canonHeaders) . "\n\n"
. $signedHeadersString . "\n"
. $payload;
return ['creq' => $canon, 'headers' => $signedHeadersString];
}
private function getCanonicalizedQuery(array $query)
{
unset($query['X-Amz-Signature']);
if (!$query) {
return '';
}
$qs = '';
ksort($query);
foreach ($query as $k => $v) {
if (!is_array($v)) {
$qs .= rawurlencode($k) . '=' . rawurlencode($v !== null ? $v : '') . '&';
} else {
sort($v);
foreach ($v as $value) {
$qs .= rawurlencode($k) . '=' . rawurlencode($value !== null ? $value : '') . '&';
}
}
}
return substr($qs, 0, -1);
}
private function convertToTimestamp($dateValue, $relativeTimeBase = null)
{
if ($dateValue instanceof \DateTimeInterface) {
$timestamp = $dateValue->getTimestamp();
} elseif (!is_numeric($dateValue)) {
$timestamp = strtotime($dateValue,
$relativeTimeBase === null ? time() : $relativeTimeBase
);
} else {
$timestamp = $dateValue;
}
return $timestamp;
}
private function convertExpires($expiresTimestamp, $startTimestamp)
{
$duration = $expiresTimestamp - $startTimestamp;
// Ensure that the duration of the signature is not longer than a week
if ($duration > 604800) {
throw new \InvalidArgumentException('The expiration date of a '
. 'signature version 4 presigned URL must be less than one '
. 'week');
}
return $duration;
}
private function moveHeadersToQuery(array $parsedRequest)
{
//x-amz-user-agent shouldn't be put in a query param
unset($parsedRequest['headers']['X-Amz-User-Agent']);
foreach ($parsedRequest['headers'] as $name => $header) {
$lname = strtolower($name);
if (substr($lname, 0, 5) == 'x-amz') {
$parsedRequest['query'][$name] = $header;
}
$blacklist = $this->getHeaderBlacklist();
if (isset($blacklist[$lname])
|| $lname === strtolower(self::AMZ_CONTENT_SHA256_HEADER)
) {
unset($parsedRequest['headers'][$name]);
}
}
return $parsedRequest;
}
private function parseRequest(RequestInterface $request)
{
// Clean up any previously set headers.
/** @var RequestInterface $request */
$request = $request
->withoutHeader('X-Amz-Date')
->withoutHeader('Date')
->withoutHeader('Authorization');
$uri = $request->getUri();
return [
'method' => $request->getMethod(),
'path' => $uri->getPath(),
'query' => Psr7\Query::parse($uri->getQuery()),
'uri' => $uri,
'headers' => $request->getHeaders(),
'body' => $request->getBody(),
'version' => $request->getProtocolVersion()
];
}
private function buildRequest(array $req)
{
if ($req['query']) {
$req['uri'] = $req['uri']->withQuery(Psr7\Query::build($req['query']));
}
return new Psr7\Request(
$req['method'],
$req['uri'],
$req['headers'],
$req['body'],
$req['version']
);
}
protected function verifyCRTLoaded()
{
if (!extension_loaded('awscrt')) {
throw new CommonRuntimeException(
"AWS Common Runtime for PHP is required to use Signature V4A"
. ". Please install it using the instructions found at"
. " https://github.com/aws/aws-sdk-php/blob/master/CRT_INSTRUCTIONS.md"
);
}
}
protected function createCRTStaticCredentialsProvider($credentials)
{
return new StaticCredentialsProvider([
'access_key_id' => $credentials->getAccessKeyId(),
'secret_access_key' => $credentials->getSecretKey(),
'session_token' => $credentials->getSecurityToken(),
]);
}
private function removeIllegalV4aHeaders(&$request)
{
$illegalV4aHeaders = [
self::AMZ_CONTENT_SHA256_HEADER,
"aws-sdk-invocation-id",
"aws-sdk-retry",
'x-amz-region-set',
];
$storedHeaders = [];
foreach ($illegalV4aHeaders as $header) {
if ($request->hasHeader($header)){
$storedHeaders[$header] = $request->getHeader($header);
$request = $request->withoutHeader($header);
}
}
return $storedHeaders;
}
private function CRTRequestFromGuzzleRequest($request)
{
return new Request(
$request->getMethod(),
(string) $request->getUri(),
[], //leave empty as the query is parsed from the uri object
array_map(function ($header) {return $header[0];}, $request->getHeaders())
);
}
/**
* @param CredentialsInterface $credentials
* @param RequestInterface $request
* @param $signingService
* @param SigningConfigAWS|null $signingConfig
* @return RequestInterface
*/
protected function signWithV4a(
CredentialsInterface $credentials,
RequestInterface $request,
$signingService,
SigningConfigAWS $signingConfig = null
){
$this->verifyCRTLoaded();
$signingConfig = $signingConfig ?? new SigningConfigAWS([
'algorithm' => SigningAlgorithm::SIGv4_ASYMMETRIC,
'signature_type' => SignatureType::HTTP_REQUEST_HEADERS,
'credentials_provider' => $this->createCRTStaticCredentialsProvider($credentials),
'signed_body_value' => $this->getPayload($request),
'should_normalize_uri_path' => true,
'use_double_uri_encode' => true,
'region' => "*",
'service' => $signingService,
'date' => time(),
]);
$removedIllegalHeaders = $this->removeIllegalV4aHeaders($request);
$http_request = $this->CRTRequestFromGuzzleRequest($request);
Signing::signRequestAws(
Signable::fromHttpRequest($http_request),
$signingConfig, function ($signing_result, $error_code) use (&$http_request) {
$signing_result->applyToHttpRequest($http_request);
});
foreach ($removedIllegalHeaders as $header => $value) {
$request = $request->withHeader($header, $value);
}
$sigV4AHeaders = $http_request->headers();
foreach ($sigV4AHeaders->toArray() as $h => $v) {
$request = $request->withHeader($h, $v);
}
return $request;
}
protected function presignWithV4a(
RequestInterface $request,
CredentialsInterface $credentials,
$expires
)
{
$this->verifyCRTLoaded();
$credentials_provider = $this->createCRTStaticCredentialsProvider($credentials);
$signingConfig = new SigningConfigAWS([
'algorithm' => SigningAlgorithm::SIGv4_ASYMMETRIC,
'signature_type' => SignatureType::HTTP_REQUEST_QUERY_PARAMS,
'credentials_provider' => $credentials_provider,
'signed_body_value' => $this->getPresignedPayload($request),
'region' => "*",
'service' => $this->service,
'date' => time(),
'expiration_in_seconds' => $expires
]);
$this->removeIllegalV4aHeaders($request);
foreach ($this->getHeaderBlacklist() as $headerName => $headerValue) {
if ($request->hasHeader($headerName)) {
$request = $request->withoutHeader($headerName);
}
}
$http_request = $this->CRTRequestFromGuzzleRequest($request);
Signing::signRequestAws(
Signable::fromHttpRequest($http_request),
$signingConfig, function ($signing_result, $error_code) use (&$http_request) {
$signing_result->applyToHttpRequest($http_request);
});
return $request->withUri(
new Psr7\Uri($http_request->pathAndQuery())
);
}
}
SignatureInterface.php 0000644 00000002616 15152066131 0011044 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Credentials\CredentialsInterface;
use Psr\Http\Message\RequestInterface;
/**
* Interface used to provide interchangeable strategies for signing requests
* using the various AWS signature protocols.
*/
interface SignatureInterface
{
/**
* Signs the specified request with an AWS signing protocol by using the
* provided AWS account credentials and adding the required headers to the
* request.
*
* @param RequestInterface $request Request to sign
* @param CredentialsInterface $credentials Signing credentials
*
* @return RequestInterface Returns the modified request.
*/
public function signRequest(
RequestInterface $request,
CredentialsInterface $credentials
);
/**
* Create a pre-signed request.
*
* @param RequestInterface $request Request to sign
* @param CredentialsInterface $credentials Credentials used to sign
* @param int|string|\DateTimeInterface $expires The time at which the URL should
* expire. This can be a Unix timestamp, a PHP DateTime object, or a
* string that can be evaluated by strtotime.
*
* @return RequestInterface
*/
public function presign(
RequestInterface $request,
CredentialsInterface $credentials,
$expires,
array $options = []
);
}
SignatureTrait.php 0000644 00000002451 15152066131 0010224 0 ustar 00 <?php
namespace Aws\Signature;
/**
* Provides signature calculation for SignatureV4.
*/
trait SignatureTrait
{
/** @var array Cache of previously signed values */
private $cache = [];
/** @var int Size of the hash cache */
private $cacheSize = 0;
private function createScope($shortDate, $region, $service)
{
return "$shortDate/$region/$service/aws4_request";
}
private function getSigningKey($shortDate, $region, $service, $secretKey)
{
$k = $shortDate . '_' . $region . '_' . $service . '_' . $secretKey;
if (!isset($this->cache[$k])) {
// Clear the cache when it reaches 50 entries
if (++$this->cacheSize > 50) {
$this->cache = [];
$this->cacheSize = 0;
}
$dateKey = hash_hmac(
'sha256',
$shortDate,
"AWS4{$secretKey}",
true
);
$regionKey = hash_hmac('sha256', $region, $dateKey, true);
$serviceKey = hash_hmac('sha256', $service, $regionKey, true);
$this->cache[$k] = hash_hmac(
'sha256',
'aws4_request',
$serviceKey,
true
);
}
return $this->cache[$k];
}
}
AnonymousSignature.php 0000644 00000001233 15152066131 0011126 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Credentials\CredentialsInterface;
use Psr\Http\Message\RequestInterface;
/**
* Provides anonymous client access (does not sign requests).
*/
class AnonymousSignature implements SignatureInterface
{
/**
* /** {@inheritdoc}
*/
public function signRequest(
RequestInterface $request,
CredentialsInterface $credentials
) {
return $request;
}
/**
* /** {@inheritdoc}
*/
public function presign(
RequestInterface $request,
CredentialsInterface $credentials,
$expires,
array $options = []
) {
return $request;
}
}
SignatureProvider.php 0000644 00000012236 15152066131 0010735 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Exception\UnresolvedSignatureException;
use Aws\Token\BearerTokenAuthorization;
/**
* Signature providers.
*
* A signature provider is a function that accepts a version, service, and
* region and returns a {@see SignatureInterface} object on success or NULL if
* no signature can be created from the provided arguments.
*
* You can wrap your calls to a signature provider with the
* {@see SignatureProvider::resolve} function to ensure that a signature object
* is created. If a signature object is not created, then the resolve()
* function will throw a {@see Aws\Exception\UnresolvedSignatureException}.
*
* use Aws\Signature\SignatureProvider;
* $provider = SignatureProvider::defaultProvider();
* // Returns a SignatureInterface or NULL.
* $signer = $provider('v4', 's3', 'us-west-2');
* // Returns a SignatureInterface or throws.
* $signer = SignatureProvider::resolve($provider, 'no', 's3', 'foo');
*
* You can compose multiple providers into a single provider using
* {@see Aws\or_chain}. This function accepts providers as arguments and
* returns a new function that will invoke each provider until a non-null value
* is returned.
*
* $a = SignatureProvider::defaultProvider();
* $b = function ($version, $service, $region) {
* if ($version === 'foo') {
* return new MyFooSignature();
* }
* };
* $c = \Aws\or_chain($a, $b);
* $signer = $c('v4', 'abc', '123'); // $a handles this.
* $signer = $c('foo', 'abc', '123'); // $b handles this.
* $nullValue = $c('???', 'abc', '123'); // Neither can handle this.
*/
class SignatureProvider
{
private static $s3v4SignedServices = [
's3' => true,
's3control' => true,
's3-outposts' => true,
's3-object-lambda' => true,
's3express' => true
];
/**
* Resolves and signature provider and ensures a non-null return value.
*
* @param callable $provider Provider function to invoke.
* @param string $version Signature version.
* @param string $service Service name.
* @param string $region Region name.
*
* @return SignatureInterface
* @throws UnresolvedSignatureException
*/
public static function resolve(callable $provider, $version, $service, $region)
{
$result = $provider($version, $service, $region);
if ($result instanceof SignatureInterface
|| $result instanceof BearerTokenAuthorization
) {
return $result;
}
throw new UnresolvedSignatureException(
"Unable to resolve a signature for $version/$service/$region.\n"
. "Valid signature versions include v4 and anonymous."
);
}
/**
* Default SDK signature provider.
*
* @return callable
*/
public static function defaultProvider()
{
return self::memoize(self::version());
}
/**
* Creates a signature provider that caches previously created signature
* objects. The computed cache key is the concatenation of the version,
* service, and region.
*
* @param callable $provider Signature provider to wrap.
*
* @return callable
*/
public static function memoize(callable $provider)
{
$cache = [];
return function ($version, $service, $region) use (&$cache, $provider) {
$key = "($version)($service)($region)";
if (!isset($cache[$key])) {
$cache[$key] = $provider($version, $service, $region);
}
return $cache[$key];
};
}
/**
* Creates signature objects from known signature versions.
*
* This provider currently recognizes the following signature versions:
*
* - v4: Signature version 4.
* - anonymous: Does not sign requests.
*
* @return callable
*/
public static function version()
{
return function ($version, $service, $region) {
switch ($version) {
case 'v4-s3express':
return new S3ExpressSignature($service, $region);
case 's3v4':
case 'v4':
return !empty(self::$s3v4SignedServices[$service])
? new S3SignatureV4($service, $region)
: new SignatureV4($service, $region);
case 'v4a':
return !empty(self::$s3v4SignedServices[$service])
? new S3SignatureV4($service, $region, ['use_v4a' => true])
: new SignatureV4($service, $region, ['use_v4a' => true]);
case 'v4-unsigned-body':
return !empty(self::$s3v4SignedServices[$service])
? new S3SignatureV4($service, $region, ['unsigned-body' => 'true'])
: new SignatureV4($service, $region, ['unsigned-body' => 'true']);
case 'bearer':
return new BearerTokenAuthorization();
case 'anonymous':
return new AnonymousSignature();
default:
return null;
}
};
}
}
S3SignatureV4.php 0000644 00000007672 15152066131 0007652 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Credentials\CredentialsInterface;
use AWS\CRT\Auth\SignatureType;
use AWS\CRT\Auth\SigningAlgorithm;
use AWS\CRT\Auth\SigningConfigAWS;
use Psr\Http\Message\RequestInterface;
/**
* Amazon S3 signature version 4 support.
*/
class S3SignatureV4 extends SignatureV4
{
/**
* S3-specific signing logic
*
* {@inheritdoc}
*/
use SignatureTrait;
public function signRequest(
RequestInterface $request,
CredentialsInterface $credentials,
$signingService = null
) {
// Always add a x-amz-content-sha-256 for data integrity
if (!$request->hasHeader('x-amz-content-sha256')) {
$request = $request->withHeader(
'x-amz-content-sha256',
$this->getPayload($request)
);
}
$useCrt =
strpos($request->getUri()->getHost(), "accesspoint.s3-global")
!== false;
if (!$useCrt) {
if (strpos($request->getUri()->getHost(), "s3-object-lambda")) {
return parent::signRequest($request, $credentials, "s3-object-lambda");
}
return parent::signRequest($request, $credentials);
}
$signingService = $signingService ?: 's3';
return $this->signWithV4a($credentials, $request, $signingService);
}
/**
* @param CredentialsInterface $credentials
* @param RequestInterface $request
* @param $signingService
* @param SigningConfigAWS|null $signingConfig
* @return RequestInterface
*
* Instantiates a separate sigv4a signing config. All services except S3
* use double encoding. All services except S3 require path normalization.
*/
protected function signWithV4a(
CredentialsInterface $credentials,
RequestInterface $request,
$signingService,
SigningConfigAWS $signingConfig = null
){
$this->verifyCRTLoaded();
$credentials_provider = $this->createCRTStaticCredentialsProvider($credentials);
$signingConfig = new SigningConfigAWS([
'algorithm' => SigningAlgorithm::SIGv4_ASYMMETRIC,
'signature_type' => SignatureType::HTTP_REQUEST_HEADERS,
'credentials_provider' => $credentials_provider,
'signed_body_value' => $this->getPayload($request),
'region' => "*",
'should_normalize_uri_path' => false,
'use_double_uri_encode' => false,
'service' => $signingService,
'date' => time(),
]);
return parent::signWithV4a($credentials, $request, $signingService, $signingConfig);
}
/**
* Always add a x-amz-content-sha-256 for data integrity.
*
* {@inheritdoc}
*/
public function presign(
RequestInterface $request,
CredentialsInterface $credentials,
$expires,
array $options = []
) {
if (!$request->hasHeader('x-amz-content-sha256')) {
$request = $request->withHeader(
'X-Amz-Content-Sha256',
$this->getPresignedPayload($request)
);
}
if (strpos($request->getUri()->getHost(), "accesspoint.s3-global")) {
$request = $request->withHeader("x-amz-region-set", "*");
}
return parent::presign($request, $credentials, $expires, $options);
}
/**
* Override used to allow pre-signed URLs to be created for an
* in-determinate request payload.
*/
protected function getPresignedPayload(RequestInterface $request)
{
return SignatureV4::UNSIGNED_PAYLOAD;
}
/**
* Amazon S3 does not double-encode the path component in the canonical request
*/
protected function createCanonicalizedPath($path)
{
// Only remove one slash in case of keys that have a preceding slash
if (substr($path, 0, 1) === '/') {
$path = substr($path, 1);
}
return '/' . $path;
}
}
S3ExpressSignature.php 0000644 00000003012 15152066131 0010772 0 ustar 00 <?php
namespace Aws\Signature;
use Aws\Credentials\Credentials;
use Aws\Credentials\CredentialsInterface;
use Psr\Http\Message\RequestInterface;
class S3ExpressSignature extends S3SignatureV4
{
public function signRequest(
RequestInterface $request,
CredentialsInterface $credentials,
$signingService = 's3express'
) {
$request = $this->modifyTokenHeaders($request, $credentials);
$credentials = $this->getSigningCredentials($credentials);
return parent::signRequest($request, $credentials, $signingService);
}
public function presign(RequestInterface $request, CredentialsInterface $credentials, $expires, array $options = [])
{
$request = $this->modifyTokenHeaders($request, $credentials);
$credentials = $this->getSigningCredentials($credentials);
return parent::presign($request, $credentials, $expires, $options);
}
private function modifyTokenHeaders(
RequestInterface $request,
CredentialsInterface $credentials
) {
//The x-amz-security-token header is not supported by s3 express
$request = $request->withoutHeader('X-Amz-Security-Token');
return $request->withHeader(
'x-amz-s3session-token',
$credentials->getSecurityToken()
);
}
private function getSigningCredentials(CredentialsInterface $credentials)
{
return new Credentials(
$credentials->getAccessKeyId(),
$credentials->getSecretKey()
);
}
}
