Question

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，没有任何内容。

即使在控制台中也会像下面那样生成Presignrd URL。但是当我尝试点击它时，它会给我SignatureDoesNotMatch错误。（请点击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-east-2%2Fs3%2Faws4_request&X-Amz-Date=20170824T062933Z&X-Amz-SignedHeaders=host&X-Amz-Expires=604800&X-Amz-Signature=a4384c737f191c6a516611f67a322ebf98b8e9e0aff65bbcd84e74c87637fb3dhttps://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-east-2%2Fs3%2Faws4_request&X-Amz-Date=20170824T062933Z&X-Amz-SignedHeaders=host&X-Amz-Expires=604800&X-Amz-Signature=a4384c737f191c6a516611f67a322ebf98b8e9e0aff65bbcd84e74c87637fb3d

Answer 1

经过几天的努力找到了这个解决方案。

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
    }

    });

AWS预签名URL

1 个答案: