我现在正在尝试设置fineuploader-s3来显示成功上传到aws服务器上的文件的图像，就像在此处的示例页面上所做的那样： http://fineuploader.com/#s3-demo
我（仍在）使用https://github.com/Widen/fine-uploader-server/blob/master/php/s3/s3demo.php处的代码，我添加了
uploadSuccess: {
endpoint: "s3demo.php?success"
}
到我的javascript文件中的fine-uploader实例，以便临时链接应该由s3demo.php文件中的函数生成。
我意识到我必须安装AWS SDK才能使其正常工作。安装的zip方法确实无效，所以我使用的是phar。 我将s3demo.php文件的该部分更改为：
require 'aws.phar';
use Aws\S3\S3Client;
我也取消注释了这两行：
$serverPublicKey = $_SERVER['PARAM1'];
$serverPrivateKey = $_SERVER['PARAM2'];
我遇到两个问题就是让这个问题起作用。首先，我从AWS获得的成功回应出现了问题，我认为我应该获得该文件的链接。
文件上传完美，但我在控制台中收到错误：
[FineUploader 3.8.0] Sending POST request for 0 s3.jquery.fineuploader-3.8.0.js:164
[FineUploader 3.8.0] Received the following response body to an AWS upload success request for id 0: <br />
<b>Fatal error</b>: Uncaught exception 'Guzzle\Http\Exception\CurlException' with message '[curl] 28: Connection timed out after 1001 milliseconds [url] http://169.254.169.254/latest/meta-data/iam/security-credentials/' in phar:///MYSITE/aws.phar/Guzzle/Http/Curl/CurlMulti.php:339
Stack trace:
#0 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(280): Guzzle\Http\Curl\CurlMulti->isCurlException(Object(Guzzle\Http\Message\Request), Object(Guzzle\Http\Curl\CurlHandle), Array)
#1 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(245): Guzzle\Http\Curl\CurlMulti->processResponse(Object(Guzzle\Http\Message\Request), Object(Guzzle\Http\Curl\CurlHandle), Array)
#2 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(228): Guzzle\Http\Curl\CurlMulti->processMessages()
#3 phar:///MYSITE//aws.phar/Guzzle/Http/Curl/CurlMulti.php(212): Guzzle\Http\Curl\CurlMulti->executeHandles()
#4 phar:///MYSITE/z/aw in <b>phar:///home/nextq2/public_html/lenz/aws.phar/Aws/Common/InstanceMetadata/InstanceMetadataClient.php</b> on line <b>82</b><br />
s3.jquery.fineuploader-3.8.0.js:164
[FineUploader 3.8.0] Upload success was acknowledged by the server. s3.jquery.fineuploader-3.8.0.js:164
这是否意味着我的AWS开发工具包安装或亚马逊的权限设置出现了问题？对于CORS和IAM设置？其中仍然如下：
<CORSRule>
<AllowedOrigin>MY WEBSITE</AllowedOrigin>
<AllowedMethod>POST</AllowedMethod>
<MaxAgeSeconds>3000</MaxAgeSeconds>
<AllowedHeader>*</AllowedHeader>
</CORSRule>
我对IAM的小组政策：
{
"Version":"2012-10-17",
"Statement":[{
"Effect":"Allow",
"Action":"s3:PutObject",
"Resource":"arn:aws:s3:::MY_BUCKET/*”
}]
}
第二个问题，我确定我应该能够弄清楚但不能，是如何在我的javascript中访问s3demo.php生成的json数组，这样我就可以显示上传的图像了。我想这不是$ templink [0]。我想知道是否有可能看到示例代码在http://fineuploader.com/#s3-demo上给出了它的功能视图按钮。如果我在这里提出第二个问题，我很乐意这样做。
非常感谢你的时间。
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。我使用了另一个Mark在StackOverflow上进行此测试的例子，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();
}
}
};
$("#manual-fine-uploader").fineUploaderS3({
autoUpload: false,
debug: true,
request: {
endpoint: "http://my bucket name.s3.amazonaws.com",
accessKey: “I put my access key here”
},
validation: {
allowedExtensions: ['jpeg', 'jpg', 'gif', 'png'],
sizeLimit: 15000000,
itemLimit: 3
},
signature: {
endpoint: "s3demo.php"
},
camera: {
ios: true
},
iframeSupport: {
localBlankPagePath: "/success.html"
},
uploadSuccess: {
endpoint: "s3demo.php?success"
}
});
});
答案 0 :(得分：4)
听起来您只想在FineUploader.com上反映S3演示的行为。因此，您显然遇到问题的部分是演示的一部分，它允许您查看/下载您上传的文件。我的猜测是你没有设置PARAM1和PARAM2环境变量。您应该真正了解$_SERVER超级全局如何在PHP文档中工作。现在，此代码要求您拥有一个名为PARAM1的系统环境变量，该变量包含与您应为服务器（而非客户端）创建的IAM用户关联的公共AWS密钥。 PARAM2系统环境变量应设置为同一用户的密钥。您可以设置这些环境变量，也可以将关联的$serverPublicKey和$serverPrivateKey PHP全局变量分别设置为服务器端IAM用户的公钥和密钥。
请注意，与服务器的AWS公钥和密钥（PARAM1和PARAM2）关联的系统环境变量的可怜名称选择是由于fineuploader.com S3的服务器演示正在由AWS EC2 instance创建的Amazon's Elastic Beanstalk service上运行。 Elastic Beanstalk没有提供（至少它没有明显提供）通过Elastic Beanstalk UI为PHP应用程序命名系统环境变量的方法。它将它们命名为PARAM1，PARAM2等。
$serverPublicKey和$serverPrivateKey变量不应与您为客户端任务创建的IAM用户相关联。您应该创建了一个具有适合服务器端任务权限的不同IAM用户。例如，如果要支持删除文件功能，则需要具有“S3：DeleteObject”权限的IAM用户。出于安全原因，此用户应仅限于服务器端任务。
在您的情况下，您的服务器端IAM用户必须对您的存储桶具有“S3：GetObject”权限。需要此权限才能从您的存储桶中获取对象。最安全的方法是仅向服务器端IAM用户授予此权限。您可能会问：“如果我的客户端用户无法从我的存储桶读取对象，我如何允许在客户端下载该文件？”好吧，一个选项是将Fine Uploader中的acl选项设置为“public-read”，然后使用以下约定构建URL客户端：“http://mybucket.s3.amazonaws.com/objectkey”。这不是fineuploader.com上的S3演示工作方式。请继续阅读详细信息......
我不想让用户无限制地访问他们上传到Fine Uploader的S3存储桶中的文件，因此我将acl保留为“私有”（默认值），我只给了我的服务器端IAM对于Fine Uploader S3存储桶的用户“S3：GetObject”权限，我让服务器向存储桶中的关联对象返回“定时轰炸”的签名URL。服务器返回的URL包含一个到期参数，该参数仅允许它使用15分钟。在查询字符串中更改该过期参数的任何尝试都将使签名无效，并且请求将失败。 PHP示例中的getTempLink函数将生成一个时间轰炸的签名URL，该URL在对Fine Uploader的uploadSucess.endpoint POST请求的响应中返回。您可以通过提供complete event handler来访问此值。传递给回调的responseJSON对象参数将包含一个tempLink属性，该属性将包含已签名的URL。然后，您可以生成一个锚点，src属性设置为此属性的值。