在显示由精细上传器上传到Amazons3的图像时遇到问题

我现在正在尝试设置fineploader-s3，以显示成功上传到aws服务器上的文件的图像，如示例页面所示：http://fineuploader.com/#s3-演示

我（仍）在使用https://github.com/Widen/fine-uploader-server/blob/master/php/s3/s3demo.php，并且我添加了

uploadSuccess: {
        endpoint: "s3demo.php?success"
    }

到我的javascript文件中的fine-uploader实例，这样临时链接应该由s3demo.php文件中的函数生成。

我意识到我必须安装AWS SDK才能让它发挥作用。zip安装方法真的不起作用，所以我用的是phar。我将s3demo.php文件的该部分更改为：

require 'aws.phar';
use Aws'S3'S3Client;

我还取消了这两行的注释：

$serverPublicKey = $_SERVER['PARAM1'];
$serverPrivateKey = $_SERVER['PARAM2'];

我在实现这一目标方面遇到了两个问题。首先，我从AWS获得的成功回复出现了问题，我认为我应该从中获得该文件的链接。

文件上传完美，但我在控制台中收到一个错误：

[FineUploader 3.8.0] Sending POST request for 0 s3.jquery.fineuploader-3.8.0.js:164
[FineUploader 3.8.0] Received the following response body to an AWS upload success request for id 0: <br />
<b>Fatal error</b>:  Uncaught exception 'Guzzle'Http'Exception'CurlException' with message '[curl] 28: Connection timed out after 1001 milliseconds [url] http://169.254.169.254/latest/meta-data/iam/security-credentials/' in phar:///MYSITE/aws.phar/Guzzle/Http/Curl/CurlMulti.php:339
Stack trace:
#0 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(280): Guzzle'Http'Curl'CurlMulti-&gt;isCurlException(Object(Guzzle'Http'Message'Request), Object(Guzzle'Http'Curl'CurlHandle), Array)
#1 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(245): Guzzle'Http'Curl'CurlMulti-&gt;processResponse(Object(Guzzle'Http'Message'Request), Object(Guzzle'Http'Curl'CurlHandle), Array)
#2 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(228): Guzzle'Http'Curl'CurlMulti-&gt;processMessages()
#3 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(212): Guzzle'Http'Curl'CurlMulti-&gt;executeHandles()
#4 phar:///MYSITE/z/aw in <b>phar:///home/nextq2/public_html/lenz/aws.phar/Aws/Common/InstanceMetadata/InstanceMetadataClient.php</b> on line <b>82</b><br />
 s3.jquery.fineuploader-3.8.0.js:164
[FineUploader 3.8.0] Upload success was acknowledged by the server. s3.jquery.fineuploader-3.8.0.js:164

这是否意味着我的AWS SDK安装有问题，或者我在亚马逊上的权限设置有问题？对于CORS和IAM设置？它们仍然如下：

<CORSRule>
        <AllowedOrigin>MY WEBSITE</AllowedOrigin>
        <AllowedMethod>POST</AllowedMethod>
        <MaxAgeSeconds>3000</MaxAgeSeconds>
        <AllowedHeader>*</AllowedHeader>
    </CORSRule>

我在IAM上的组策略：

    {
      "Version":"2012-10-17",
      "Statement":[{
         "Effect":"Allow",
         "Action":"s3:PutObject",
         "Resource":"arn:aws:s3:::MY_BUCKET/*”
       }]
}

第二个问题，我相信我应该能够弄清楚，但不能，是如何在我的javascript中访问s3demo.php生成的json数组，以便显示上传的图像。我想这不是$templink[0]。我想知道是否可以看到给出视图按钮的示例代码http://fineuploader.com/#s3-演示其功能。如果我应该在这里提出第二个问题，我很乐意这样做

非常感谢您抽出时间。

编辑以按要求添加我的完整代码：

PHP:

<?php
/**
 * PHP Server-Side Example for Fine Uploader S3.
 * Maintained by Widen Enterprises.
 *
 * Note: This is the exact server-side code used by the S3 example
 * on fineuploader.com.
 *
 * This example:
 *  - handles both CORS and non-CORS environments
 *  - handles delete file requests for both DELETE and POST methods
 *  - Performs basic inspections on the policy documents and REST headers before signing them
 *  - Ensures again the file size does not exceed the max (after file is in S3)
 *  - signs policy documents (simple uploads) and REST requests
 *    (chunked/multipart uploads)
 *
 * Requirements:
 *  - PHP 5.3 or newer
 *  - Amazon PHP SDK (only if utilizing the AWS SDK for deleting files or otherwise examining them)
 *
 * If you need to install the AWS SDK, see http://docs.aws.amazon.com/aws-sdk-php-2/guide/latest/installation.html.
 */
// You can remove these two lines if you are not using Fine Uploader's
// delete file feature
require 'aws/aws-autoloader.php';
use Aws'S3'S3Client;

// These assume you have the associated AWS keys stored in
// the associated system environment variables
$clientPrivateKey = ‘I put my private key here;
// These two keys are only needed if the delete file feature is enabled
// or if you are, for example, confirming the file size in a successEndpoint
// handler via S3's SDK, as we are doing in this example.
$serverPublicKey = $_SERVER['PARAM1'];
$serverPrivateKey = $_SERVER['PARAM2'];
$expectedMaxSize = 15000000; 
$expectedBucket = “my bucket name here;
$method = getRequestMethod();
// This first conditional will only ever evaluate to true in a
// CORS environment
if ($method == 'OPTIONS') {
    handlePreflight();
}
// This second conditional will only ever evaluate to true if
// the delete file feature is enabled
else if ($method == "DELETE") {
  //  handlePreflightedRequest(); // only needed in a CORS environment
    deleteObject();
}
// This is all you really need if not using the delete file feature
// and not working in a CORS environment
else if ($method == 'POST') {
    handlePreflightedRequest();
    // Assumes the successEndpoint has a parameter of "success" associated with it,
    // to allow the server to differentiate between a successEndpoint request
    // and other POST requests (all requests are sent to the same endpoint in this example).
    // This condition is not needed if you don't require a callback on upload success.
    if (isset($_REQUEST["success"])) {
        verifyFileInS3();
    }
    else {
        signRequest();
    }
}
// This will retrieve the "intended" request method.  Normally, this is the
// actual method of the request.  Sometimes, though, the intended request method
// must be hidden in the parameters of the request.  For example, when attempting to
// send a DELETE request in a cross-origin environment in IE9 or older, it is not
// possible to send a DELETE request.  So, we send a POST with the intended method,
// DELETE, in a "_method" parameter.
function getRequestMethod() {
    global $HTTP_RAW_POST_DATA;
    // This should only evaluate to true if the Content-Type is undefined
    // or unrecognized, such as when XDomainRequest has been used to
    // send the request.
    if(isset($HTTP_RAW_POST_DATA)) {
        parse_str($HTTP_RAW_POST_DATA, $_POST);
    }
    if ($_POST['_method'] != null) {
        return $_POST['_method'];
    }
    return $_SERVER['REQUEST_METHOD'];
}
// Only needed in cross-origin setups
function handlePreflightedRequest() {
    // If you are relying on CORS, you will need to adjust the allowed domain here.
    //header('Access-Control-Allow-Origin: http://nextquestion.org');
}
// Only needed in cross-origin setups
function handlePreflight() {
    handlePreflightedRequest();
    header('Access-Control-Allow-Methods: POST');
    header('Access-Control-Allow-Headers: Content-Type');
}
function getS3Client() {
    global $serverPublicKey, $serverPrivateKey;
    return S3Client::factory(array(
        'key' => $serverPublicKey,
        'secret' => $serverPrivateKey
    ));
}
// Only needed if the delete file feature is enabled
function deleteObject() {
    getS3Client()->deleteObject(array(
        'Bucket' => $_POST['bucket'],
        'Key' => $_POST['key']
    ));
}
function signRequest() {
    header('Content-Type: application/json');
    $responseBody = file_get_contents('php://input');
    $contentAsObject = json_decode($responseBody, true);
    $jsonContent = json_encode($contentAsObject);
    $headersStr = $contentAsObject["headers"];
    if ($headersStr) {
        signRestRequest($headersStr);
    }
    else {
        signPolicy($jsonContent);
    }
}
function signRestRequest($headersStr) {
    if (isValidRestRequest($headersStr)) {
        $response = array('signature' => sign($headersStr));
        echo json_encode($response);
    }
    else {
        echo json_encode(array("invalid" => true));
    }
}
function isValidRestRequest($headersStr) {
    global $expectedBucket;
    $pattern = "/'/$expectedBucket'/.+$/";
    preg_match($pattern, $headersStr, $matches);
    return count($matches) > 0;
}
function signPolicy($policyStr) {
    $policyObj = json_decode($policyStr, true);
    if (isPolicyValid($policyObj)) {
        $encodedPolicy = base64_encode($policyStr);
        $response = array('policy' => $encodedPolicy, 'signature' => sign($encodedPolicy));
        echo json_encode($response);
    }
    else {
        echo json_encode(array("invalid" => true));
    }
}
function isPolicyValid($policy) {
    global $expectedMaxSize, $expectedBucket;
    $conditions = $policy["conditions"];
    $bucket = null;
    $parsedMaxSize = null;
    for ($i = 0; $i < count($conditions); ++$i) {
        $condition = $conditions[$i];
        if (isset($condition["bucket"])) {
            $bucket = $condition["bucket"];
        }
        else if (isset($condition[0]) && $condition[0] == "content-length-range") {
            $parsedMaxSize = $condition[2];
        }
    }
    return $bucket == $expectedBucket && $parsedMaxSize == (string)$expectedMaxSize;
}
function sign($stringToSign) {
    global $clientPrivateKey;
    return base64_encode(hash_hmac(
            'sha1',
            $stringToSign,
            $clientPrivateKey,
            true
        ));
}
// This is not needed if you don't require a callback on upload success.
function verifyFileInS3() {
    global $expectedMaxSize;
    $bucket = $_POST["bucket"];
    $key = $_POST["key"];
    // If utilizing CORS, we return a 200 response with the error message in the body
    // to ensure Fine Uploader can parse the error message in IE9 and IE8,
    // since XDomainRequest is used on those browsers for CORS requests.  XDomainRequest
    // does not allow access to the response body for non-success responses.
    if (getObjectSize($bucket, $key) > $expectedMaxSize) {
        // You can safely uncomment this next line if you are not depending on CORS
        //header("HTTP/1.0 500 Internal Server Error");
        deleteObject();
        echo json_encode(array("error" => "File is too big!"));
    }
    else {
        echo json_encode(array("tempLink" => getTempLink($bucket, $key)));
    }
}
function testfunction(){
    alert('whatever');
}
// Provide a time-bombed public link to the file.
function getTempLink($bucket, $key) {
    $client = getS3Client();
    $url = "{$bucket}/{$key}";
    $request = $client->get($url);
    return $client->createPresignedUrl($request, '+15 minutes');
}
function getObjectSize($bucket, $key) {
    $objInfo = getS3Client()->headObject(array(
            'Bucket' => $bucket,
            'Key' => $key
        ));
    return $objInfo['ContentLength'];
}
?>

我的html。我在这个测试中使用了Mark在StackOverflow上的另一个例子，因为最终我想同时提交一些其他数据：

<!DOCTYPE html>
<html>
<head>
  <title>test of fine uploader</title>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <link href="fineuploader-3.8.0.css" rel="stylesheet">
  <style>
  .button {
      display: block;
      height: 30px;
      width: 100px;
      border: 1px solid #000;
  }
  </style>
 <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="s3.jquery.fineuploader-3.8.0.js"></script>
<script type="text/javascript" src="lenz_javascript4.js"></script>
</head> 
<body> 
<!-- Generated Image Thumbnail -->
<a href="#" id="thumbnail">view image</a>
<form action="fineuploadertest.php" method="post" id="uploader">
<input type="text" name="textbox" value="Test data">
    <div id="manual-fine-uploader"></div>
    <div id="triggerUpload" class="button" style="margin-top: 10px;">click here
    </div>
</form>
</body>
</html>

我的javascript：

$(document).ready(function() {
    $("#triggerUpload").click(function () {
        $("#manual-fine-uploader").fineUploaderS3('uploadStoredFiles'); 
    });
    function submitForm () { 
        if ($(this).fineUploader('getInProgress') == 0) {
            var failedUploads = $(this).fineUploaderS3('getUploads', 
                { status: qq.status.UPLOAD_FAILED });
            if (failedUploads.length == 0) {    
                // do any other form processing here
                $("#uploader").submit();
            }
        }
    };

    $("#manual-fine-uploader").fineUploaderS3({
        autoUpload: false,
        debug: true,
              request: {
                  endpoint: "http://my bucket name.s3.amazonaws.com",
                  accessKey: “I put my access key here”
              },
                validation: {
                    allowedExtensions: ['jpeg', 'jpg', 'gif', 'png'],
                    sizeLimit: 15000000,
                    itemLimit: 3
                },
              signature: {
                  endpoint: "s3demo.php"
              },
            camera: {
                 ios: true
            },
              iframeSupport: {
                  localBlankPagePath: "/success.html"
              },
              uploadSuccess: {
        endpoint: "s3demo.php?success"
    }
    });
});