Amazon S3 (Simple Storage Service)

https://blog.csdn.net/ganggexiongqi/article/details/50483389

使用官方 SDK

任何需要使用別人提供的 PHP 程式，首先要知道的就是「該 PHP 是什麼版本寫的」

換句話說，尋找 SDK 時不是說最新的最適合，而是會跑才適合。

以 Hoyo 的測試環境舉例 CentOS 6.7，這是一個相當舊的版本，PHP 為 5.3 版，網路上搜尋後可以得知適當的 Amazon PHP SDK 為 v2 版本，v3 需要 PHP 5.5 以上才支援。

使用之前

請先將 Server 的時間校準，雖然不是所有功能都對時間敏感，不過做了就沒錯

如果看到 PHP 發生類似這個錯誤

PHP Fatal error:  Uncaught Aws\\S3\\Exception\\RequestTimeTooSkewedException: AWS Error Code: RequestTimeTooSkewed

1	PHP Fatal error: Uncaught Aws\\S3\\Exception\\RequestTimeTooSkewedException: AWS Error Code: RequestTimeTooSkewed

就代表你主機的時間不準了

開始使用

參考

上傳

<?php
require __DIR__.'/Component_Back/aws-autoloader.php';

use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;

$bucket = 'hoyo';
$keyname = 'H_72.png';
// $filepath should be absolute path to a file on disk
$filepath = 'H_72.png';

// Instantiate the client.
$s3 = S3Client::factory(array(
    'key'    => '你自己的 key',
    'secret' => '你自己的 secret'
));

try {
    // Upload data.
    $result = $s3->putObject(array(
        'Bucket' => $bucket,
        'Key'    => $keyname,
        'SourceFile'   => $filepath,
        'ACL'    => 'public-read'
    ));

    // Print the URL to the object.
    //echo '<pre>'; print_r( $result['ObjectURL'] ); echo '</pre>';
} catch (S3Exception $e) {
    //echo $e->getMessage() . "\n";
}

<?php

require __DIR__.'/Component_Back/aws-autoloader.php';

use Aws\S3\S3Client;

use Aws\S3\Exception\S3Exception;

$bucket = 'hoyo';

$keyname = 'H_72.png';

// $filepath should be absolute path to a file on disk

$filepath = 'H_72.png';

// Instantiate the client.

$s3 = S3Client::factory(array(

'key' => '你自己的 key',

'secret' => '你自己的 secret'

));

try {

// Upload data.

$result = $s3->putObject(array(

'Bucket' => $bucket,

'Key' => $keyname,

'SourceFile' => $filepath,

'ACL' => 'public-read'

));

// Print the URL to the object.

//echo '<pre>'; print_r( $result['ObjectURL'] ); echo '</pre>';

} catch (S3Exception $e) {

//echo $e->getMessage() . "\n";

}

將 Bucket 當作本地存取

Amazon S3 Stream Wrapper

<?php
require __DIR__ .'/../Component_Back/aws-autoloader.php';
use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;
use Aws\S3\StreamWrapper;

$client = S3Client::factory(array(
    'key'    => S3Key,
    'secret' => S3Secret
));

$client->registerStreamWrapper();

$data = file_get_contents('s3://soundu/2016/20161101/2ff1603017878be35d70acc6c86f18ac');
echo $data;

<?php

require __DIR__ .'/../Component_Back/aws-autoloader.php';

use Aws\S3\S3Client;

use Aws\S3\Exception\S3Exception;

use Aws\S3\StreamWrapper;

$client = S3Client::factory(array(

'key' => S3Key,

'secret' => S3Secret

));

$client->registerStreamWrapper();

$data = file_get_contents('s3://soundu/2016/20161101/2ff1603017878be35d70acc6c86f18ac');

echo $data;

使用 HTML Forms 上傳及包裝成 PHP curl post

參考

Direct Upload to Amazon AWS S3 Using PHP & HTML

和原程式差別在於 Region 的設定，有關 Region 的設定可以參考 AWS区域和终端节点

將 region 固定則上傳網址也必須隨之調整

<?php
$access_key         = "你的 Key"; //Access Key
$secret_key         = "你的 Secret"; //Secret Key
$my_bucket          = "你的 Bucket"; //bucket name
$region             = "us-west-2"; //bucket region
$success_redirect   = 'http://'. $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; //URL to which the client is redirected upon success (currently self) 
$allowd_file_size   = "1048579"; //1 MB allowed Size

//dates
$short_date         = gmdate('Ymd'); //short date
$iso_date           = gmdate("Ymd\THis\Z"); //iso format date
$expiration_date    = gmdate('Y-m-d\TG:i:s\Z', strtotime('+1 hours')); //policy expiration 1 hour from now

//POST Policy required in order to control what is allowed in the request
//For more info http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html
$policy = utf8_encode(json_encode(array(
    'expiration' => $expiration_date,
    'conditions' => array(
        array('acl' => 'public-read'),
        array('bucket' => $my_bucket),
        array('success_action_redirect' => $success_redirect),
        array('starts-with', '$key', ''),
        array('content-length-range', '1', $allowd_file_size),
        array('x-amz-credential' => $access_key.'/'.$short_date.'/'.$region.'/s3/aws4_request'),
        array('x-amz-algorithm' => 'AWS4-HMAC-SHA256'),
        array('X-amz-date' => $iso_date)
    ))));

//Signature calculation (AWS Signature Version 4)   
//For more info http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html  
$kDate = hash_hmac('sha256', $short_date, 'AWS4' . $secret_key, true);
$kRegion = hash_hmac('sha256', $region, $kDate, true);
$kService = hash_hmac('sha256', "s3", $kRegion, true);
$kSigning = hash_hmac('sha256', "aws4_request", $kService, true);
$signature = hash_hmac('sha256', base64_encode($policy), $kSigning);
?>
<!DOCTYPE HTML>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Aws S3 Direct File Uploader</title>
</head>
<body>
<form action="http://<?php echo $my_bucket ?>.s3-us-west-2.amazonaws.com/" method="post" enctype="multipart/form-data">
    <input type="hidden" name="key" value="${filename}" />
    <input type="hidden" name="acl" value="public-read" />
    <input type="hidden" name="X-Amz-Credential" value="<?php echo $access_key; ?>/<?php echo $short_date; ?>/<?php echo $region; ?>/s3/aws4_request" />
    <input type="hidden" name="X-Amz-Algorithm" value="AWS4-HMAC-SHA256" />
    <input type="hidden" name="X-Amz-Date" value="<?php echo $iso_date ; ?>" />
    <input type="hidden" name="Policy" value="<?php echo base64_encode($policy); ?>" />
    <input type="hidden" name="X-Amz-Signature" value="<?php echo $signature ?>" />
    <input type="hidden" name="success_action_redirect" value="<?php echo $success_redirect ?>" />
    <input type="file" name="file" />
    <input type="submit" value="Upload File" />
</form>
<?php
//After success redirection from AWS S3
if(isset($_GET["key"]))
{
    $filename = $_GET["key"];
    $ext = pathinfo($filename, PATHINFO_EXTENSION);
    if(in_array($ext, array("jpg", "png", "gif", "jpeg"))){
        echo '<hr />Image File Uploaded : <br /><img src="//'.$my_bucket.'.s3.amazonaws.com/'.$_GET["key"].'" style="width:100%;" />';
    }else{
        echo '<hr />File Uploaded : <br /><a href="http://'.$my_bucket.'.s3.amazonaws.com/'.$_GET["key"].'">'.$filename.'</a>';
    }
}
?>
</body>
</html>

<?php

$access_key = "你的 Key"; //Access Key

$secret_key = "你的 Secret"; //Secret Key

$my_bucket = "你的 Bucket"; //bucket name

$region = "us-west-2"; //bucket region

$success_redirect = 'http://'. $_SERVER['SERVER_NAME'] . $_SERVER['REQUEST_URI']; //URL to which the client is redirected upon success (currently self)

$allowd_file_size = "1048579"; //1 MB allowed Size

//dates

$short_date = gmdate('Ymd'); //short date

$iso_date = gmdate("Ymd\THis\Z"); //iso format date

$expiration_date = gmdate('Y-m-d\TG:i:s\Z', strtotime('+1 hours')); //policy expiration 1 hour from now

//POST Policy required in order to control what is allowed in the request

//For more info http://docs.aws.amazon.com/AmazonS3/latest/API/sigv4-HTTPPOSTConstructPolicy.html

$policy = utf8_encode(json_encode(array(

'expiration' => $expiration_date,

'conditions' => array(

array('acl' => 'public-read'),

array('bucket' => $my_bucket),

array('success_action_redirect' => $success_redirect),

array('starts-with', '$key', ''),

array('content-length-range', '1', $allowd_file_size),

array('x-amz-credential' => $access_key.'/'.$short_date.'/'.$region.'/s3/aws4_request'),

array('x-amz-algorithm' => 'AWS4-HMAC-SHA256'),

array('X-amz-date' => $iso_date)

))));

//Signature calculation (AWS Signature Version 4)

//For more info http://docs.aws.amazon.com/AmazonS3/latest/API/sig-v4-authenticating-requests.html

$kDate = hash_hmac('sha256', $short_date, 'AWS4' . $secret_key, true);

$kRegion = hash_hmac('sha256', $region, $kDate, true);

$kService = hash_hmac('sha256', "s3", $kRegion, true);

$kSigning = hash_hmac('sha256', "aws4_request", $kService, true);

$signature = hash_hmac('sha256', base64_encode($policy), $kSigning);

<!DOCTYPE HTML>

<html>

<head>

<title>Aws S3 Direct File Uploader</title>

</head>

<body>

<form action="http://<?php echo $my_bucket ?>.s3-us-west-2.amazonaws.com/" method="post" enctype="multipart/form-data">

<input type="hidden" name="X-Amz-Credential" value="<?php echo $access_key; ?>/<?php echo $short_date; ?>/<?php echo $region; ?>/s3/aws4_request" />

</form>

<?php

//After success redirection from AWS S3

if(isset($_GET["key"]))

{

$filename = $_GET["key"];

$ext = pathinfo($filename, PATHINFO_EXTENSION);

if(in_array($ext, array("jpg", "png", "gif", "jpeg"))){

echo '<hr />Image File Uploaded : <br /><img src="//'.$my_bucket.'.s3.amazonaws.com/'.$_GET["key"].'" style="width:100%;" />';

}else{

echo '<hr />File Uploaded : <br /><a href="http://'.$my_bucket.'.s3.amazonaws.com/'.$_GET["key"].'">'.$filename.'</a>';

}

</body>

</html>

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Amazon S3 (Simple Storage Service)

使用官方 SDK

使用之前

將 Bucket 當作本地存取

使用 HTML Forms 上傳及包裝成 PHP curl post

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Amazon S3 (Simple Storage Service)

使用官方 SDK

使用之前

將 Bucket 當作本地存取

使用 HTML Forms 上傳及包裝成 PHP curl post

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