AWS预签名URL-Java 学习之路

我正在尝试使用PHP / Javascript将图像/视频上传到AWS S3

这是我的PHP代码

<?php
use Aws\S3\Exception\S3Exception;


    $filename = isset($_GET['file']) ? $_GET['file'] : '';
    $mime = isset($_GET['mime']) ? $_GET['mime'] : '';

    function getSignedUrl($filename, $mime) {


        require $_SERVER['DOCUMENT_ROOT'].'/ibrainmart/start.php';

        $BUCKET = $config['S3']['bucket'];
        $tmp_name = $filename;



        try {
            $command= $S3->getCommand('PutObject', array(
                    'Bucket'      => $BUCKET,
                    'Key'         => $tmp_name,
                    'ContentType' => $mime,
                    'Body'        => ''

            ));
            $signedUrl = $S3->createPresignedRequest($command, "1 week");
        } catch (S3Exception $e) {
            echo $e->getMessage() . "\n";
        }
        echo $signedUrl->getUri();
        return $signedUrl->getUri();
    }


    echo getSignedUrl($filename,$mime);

?>

这是我的Java脚本代码

$(function(){
    // run onLoad

    $("#profilePic").uploadHandler("headerupload.php");
});

// Upload image to S3
$.fn.uploadHandler = function(s3presignedApiUri) 
{
    $(document).ready(function (e) {
        $("#profilePic").on('change',(function(e) {
        e.preventDefault();

        console.log("ajax going to start..!");
        var fileupload = $('input[name=file]');
        var fileToUpload = fileupload[0].files[0];
           if(fileToUpload !="undefined"){
            var formData = new FormData();
            formData.append("file", fileToUpload);
           }
        console.log("fileToUpload.name"+fileToUpload.name);
        $.ajax({
                url: s3presignedApiUri, // Url to which the request is send
                type: "GET",             // Type of request to be send, called as method

                data: 'file='+ fileToUpload.name + '&mime=' + fileToUpload.type , // Data sent to server, a set of key/value pairs (i.e. form fields and values)


                cache: false,             // To unable request pages to be cached
                })       


                .done(function(data)   // A function to be called if request succeeds
                {

                    console.log("data ............"+data);

                    $.ajax({
                        url : data.url,
                        type : "PUT",
                        data : fileToUpload,
                        cache : false,
                        contentType : fileToUpload.type,
                        processData : false
                    })
                    .done(function() {

                        console.info("s3-upload done: "); // REMOVE ME FOR PRODUCTION USE

                    })
                    .fail(function(e) {
                        console.error("s3-upload failed",e); // REMOVE ME FOR PRODUCTION USE
                    });
                })
                .fail(function(e)
                        {
                        console.log("file passing error.!");
                    })

                }));

    });


}

所有这些功能都很有用我想即使在执行后它也会给我文件上传成功消息 . 但是当我检查s3时，没有任何东西存在 .

即使在控制台中，它也会像下面那样生成Presignrd URL . 但是当我尝试单击它时，它会给我SignatureDoesNotMatch错误 . （请单击URL） . 可能是错误..？

https://ibrainmartstorage.s3.us-east-2.amazonaws.com/DSC_1595.JPG?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJZBWQOXKKPC7UXDQ ％2F20170824％2Fus - 东 - 2％2Fs3％2Faws4_request＆X-AMZ-日期= 20170824T062933Z＆X-AMZ-SignedHeaders =宿主＆X-AMZ-过期= 604800＆X-AMZ-签名= a4384c737f191c6a516611f67a322ebf98b8e9e0aff65bbcd84e74c87637fb3dhttps：//ibrainmartstorage.s3.us-east-2.amazonaws的.com / DSC_1595.JPG？X-AMZ-内容-SHA256 = UNSIGNED-PAYLOAD＆X-AMZ-算法= AWS4-HMAC-SHA256＆X-AMZ-凭证= AKIAJZBWQOXKKPC7UXDQ％2F20170824％2Fus - 东 - 2％2Fs3％2Faws4_request＆X-AMZ-日期= 20170824T062933Z＆X-AMZ-SignedHeaders =宿主＆X-AMZ-过期= 604800＆X-AMZ-签名= a4384c737f191c6a516611f67a322ebf98b8e9e0aff65bbcd84e74c87637fb3d

1 回答

经过几天的努力，发现了这个解

使用AWS Cognito Federate池生成与AWS S3的会话，并使用临时生成的密钥，accessID和Session.below上传文件 . 我列出了代码示例 .

getAuthenticateUser().getSession(function(err,session){
     if (err) {
        console.log("Error"+err);
        return;
    }
    if(session.isValid())
    {

        const authenticator = 'cognito-idp.us-east-2.amazonaws.com/us-east-2_cfmOv3jSL';
        AWS.config.region = 'us-east-2'; // Region
        AWS.config.credentials = new AWS.CognitoIdentityCredentials({
        IdentityPoolId: 'us-east-2:XXXXX-d2b7-XXXX-85c7-929aadf450b2',
        Logins: {
            [authenticator]: session.getIdToken().getJwtToken()
          }

    });
     AWS.config.credentials.refresh((error) => {
         if (error) {
             console.error(error);
         } else {
             console.log('Successfully logged!');
         }
    });


    AWS.config.getCredentials(function(err) {
      if (err) console.log(err.stack); // credentials not loaded
      else { 
        console.log("Access Key:", AWS.config.credentials.accessKeyId);
      console.log("Access Key:", AWS.config.credentials.secretAccessKey);
     console.log("Access Key:", AWS.config.credentials);

    AWS.config.update({
        AccessKeyId : AWS.config.credentials.AccessKeyId,
        SecretAccessKey : AWS.config.credentials.SecretAccessKey ,
        SessionToken : AWS.config.credentials.SessionToken

    });
      }

    });
    }

    if(!session.isValid())
    {
        console.log("Session is not valid..!");
         //Please Login to Continue
    }

    });

回复于 2024-04-27T18:48:33+08:00

AWS预签名URL

1 回答

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