Laravel version update

Laravel version update

vendor/aws/aws-sdk-php/src/Signature/SignatureV4.php

@@ -14,6 +14,7 @@ class SignatureV4 implements SignatureInterface
 {
     use SignatureTrait;
     const ISO8601_BASIC = 'Ymd\THis\Z';
+    const UNSIGNED_PAYLOAD = 'UNSIGNED-PAYLOAD';
 
     /** @var string */
     private $service;
@@ -21,14 +22,21 @@ class SignatureV4 implements SignatureInterface
     /** @var string */
     private $region;
 
+    /** @var bool */
+    private $unsigned;
+
     /**
      * @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, $region)
+    public function __construct($service, $region, array $options = [])
     {
         $this->service = $service;
         $this->region = $region;
+        $this->unsigned = isset($options['unsigned-body']) ? $options['unsigned-body'] : false;
     }
 
     public function signRequest(
@@ -43,9 +51,13 @@ class SignatureV4 implements SignatureInterface
         if ($token = $credentials->getSecurityToken()) {
             $parsed['headers']['X-Amz-Security-Token'] = [$token];
         }
-
         $cs = $this->createScope($sdt, $this->region, $this->service);
         $payload = $this->getPayload($request);
+
+        if ($payload == self::UNSIGNED_PAYLOAD) {
+            $parsed['headers']['X-Amz-Content-Sha256'] = [$payload];
+        }
+
         $context = $this->createContext($parsed, $payload);
         $toSign = $this->createStringToSign($ldt, $cs, $context['creq']);
         $signingKey = $this->getSigningKey(
@@ -67,19 +79,27 @@ class SignatureV4 implements SignatureInterface
     public function presign(
         RequestInterface $request,
         CredentialsInterface $credentials,
-        $expires
+        $expires,
+        array $options = []
     ) {
+
+        $startTimestamp = isset($options['start_time'])
+                            ? $this->convertToTimestamp($options['start_time'], null)
+                            : time();
+        
+        $expiresTimestamp = $this->convertToTimestamp($expires, $startTimestamp);
+
         $parsed = $this->createPresignedRequest($request, $credentials);
         $payload = $this->getPresignedPayload($request);
-        $httpDate = gmdate(self::ISO8601_BASIC, time());
+        $httpDate = gmdate(self::ISO8601_BASIC, $startTimestamp);
         $shortDate = substr($httpDate, 0, 8);
         $scope = $this->createScope($shortDate, $this->region, $this->service);
         $credential = $credentials->getAccessKeyId() . '/' . $scope;
         $parsed['query']['X-Amz-Algorithm'] = 'AWS4-HMAC-SHA256';
         $parsed['query']['X-Amz-Credential'] = $credential;
-        $parsed['query']['X-Amz-Date'] = gmdate('Ymd\THis\Z', time());
+        $parsed['query']['X-Amz-Date'] = gmdate('Ymd\THis\Z', $startTimestamp);
         $parsed['query']['X-Amz-SignedHeaders'] = 'host';
-        $parsed['query']['X-Amz-Expires'] = $this->convertExpires($expires);
+        $parsed['query']['X-Amz-Expires'] = $this->convertExpires($expiresTimestamp, $startTimestamp);
         $context = $this->createContext($parsed, $payload);
         $stringToSign = $this->createStringToSign($httpDate, $scope, $context['creq']);
         $key = $this->getSigningKey(
@@ -127,6 +147,9 @@ class SignatureV4 implements SignatureInterface
 
     protected function getPayload(RequestInterface $request)
     {
+        if ($this->unsigned && $request->getUri()->getScheme() == 'https') {
+            return self::UNSIGNED_PAYLOAD;
+        }
         // Calculate the request signature payload
         if ($request->hasHeader('X-Amz-Content-Sha256')) {
             // Handle streaming operations (e.g. Glacier.UploadArchive)
@@ -206,7 +229,8 @@ class SignatureV4 implements SignatureInterface
             'proxy-authorization' => true,
             'from'                => true,
             'referer'             => true,
-            'user-agent'          => true
+            'user-agent'          => true,
+            'x-amzn-trace-id'     => true
         ];
 
         // Normalize the path as required by SigV4
@@ -266,15 +290,24 @@ class SignatureV4 implements SignatureInterface
         return substr($qs, 0, -1);
     }
 
-    private function convertExpires($expires)
+    private function convertToTimestamp($dateValue, $relativeTimeBase = null)
     {
-        if ($expires instanceof \DateTime) {
-            $expires = $expires->getTimestamp();
-        } elseif (!is_numeric($expires)) {
-            $expires = strtotime($expires);
+        if ($dateValue instanceof \DateTimeInterface) {
+            $timestamp = $dateValue->getTimestamp();
+        } elseif (!is_numeric($dateValue)) {
+            $timestamp = strtotime($dateValue,
+                                   $relativeTimeBase === null ? time() : $relativeTimeBase
+            );
+        } else {
+            $timestamp = $dateValue;
         }
 
-        $duration = $expires - time();
+        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) {