Laravel5 外部サーバーからAPIで取得した(AWS S3)画像を自分のサーバーに置きたいのです

Question

外部サーバーからAPIで取得した(AWS S3)画像を自分のサーバーに置きたいのですが下記のエラーでできないです、
教えてくださいませ！！

外部:AWS S3
自分:AWS Linux
言語：Laravel5

エラー:

 (1/1) ErrorException

file_get_contents(<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>SignatureDoesNotMatch</Code><Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message><AWSAccessKeyId>xxxxxxxxxxxxx</AWSAccessKeyId><StringToSign>GET


Thu, 01 Feb 2018 08:24:10 +0000
/xxxxxxxxxx-bucket/</StringToSign><SignatureProvided>RwCVSdQpjZixoSICSgNGfMAxHHA=</SignatureProvided><StringToSignBytes>47 45 54 0a 0a 0a 54 68 75 2c 20 30 31 20 46 65 62 20 32 30 31 38 20 30 38 3a 32 34 3a 31 30 20 2b 30 30 30 30 0a 2f 6e 65 6f 2d 63 61 72 65 65 72 2d 73 74 61 67 69 6e 67 2d 62 75 63 6b 65 74 2f</StringToSignBytes><RequestId>194FCB18F00D2897</RequestId><HostId>7b9r8HF2HNqoX0ef9l6uaYQDR6w+m+1PCaSHqA9mX8Z3OogVsjXDVkXnJ6RXc8tNM9WXj0bZFgw=</HostId></Error>): failed to open stream: No such file or directory

ソースコード：

<?php

// ----- Signature -----
// HTTP-Verb
$httpVerb = 'GET' . "\n";
// Content-MD5
$contentMd5 = "\n";
// Content-Type
$contentType = "image/jpeg \n";
// Date
$datetime = new DateTime('now', new DateTimeZone('UTC'));
$date = $datetime->format(DateTime::RFC1123) . "\n";
echo $date;
// CanonicalizedAmzHeaders
$canonicalizedAmzHeaders = '';

// CanonicalizedResource
$canonicalizedResource = '/';
// StringToSign
$stringToSign = $httpVerb . $contentMd5 . $contentType . $date
              . $canonicalizedAmzHeaders . $canonicalizedResource;
 
// Signature
$accessKeyId='xxxxxxxxxxxx';
$secretAccessKey='';
$hash = hash_hmac('sha1', $stringToSign, $secretAccessKey, true);
$signature = base64_encode($hash);
$authorization = 'AWS' . ' ' . $accessKeyId . ':' . $signature;
$ch = curl_init('https://xxxxxxx-bucket.s3-ap-northeast-1.amazonaws.com');
$headers = array(
    'Authorization: AWS '.$accessKeyId.':'.$signature,
    'Date: ' . $date,
);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$body = curl_exec($ch);
curl_close($ch);
var_dump($body);
?>

Answer 1

そもそもLaravel使っててなんでこんな無駄なことを…。
Storage使えばS3から取得してローカルに保存もすぐにできる。
https://readouble.com/laravel/5.5/ja/filesystem.html

Answer 2

"The request signature we calculated does not match the signature you provided. Check your key and signing method."
シグネチャがマッチしない。あなたのkeyとsigning methodを確認しろって出てますね。

Comments

[退会済みユーザー]

keyは確かにあっていますので、signing methodの問題ですか