無法使用REST API + AJAX將fie上傳到Quickblox。 SignatureDoesNotMatch錯誤

Question

我想上傳與http://quickblox.com/developers/Content

首先給我創建文件指令文件，它總是成功的，然後使用PARAMS在創建文件的響應，我試圖上傳文件。並且它會因SignatureDoesNotMatch錯誤而失敗。在下面的源代碼中，我試圖展示整個算法。你能告訴我我做錯了什麼嗎？

// Got file 
var file = $('#fileUploader')[0].files[0]; 
// crearing file in DB 
$.ajax({ 
    url: 'http://api.quickblox.com/blobs.json', 
    type: 'POST', 
    dataType: 'json', 
    contentType: 'application/json', 
    headers: { 
     'QB-Token': getCookie('QB-Token') 
    }, 
    data: JSON.stringify({ 
     blob: { 
      content_type: file.type, 
      name: file.name 
     } 
    }) 
}).then(function (result) { 
    // file always successfully created 
    imgUrl2Upload = result.blob.blob_object_access.params; 

    // create a FormData instance 
    var fd = new FormData(); 
    // parsing all params from result.blob.blob_object_access.params 
    var spltHost = imgUrl2Upload.split('?'); 
    // host before "?" 
    var host = spltHost[0]; 
    var spltParams = spltHost[1].split('&'); 
    // each param devided by "&" 
    for (var i = 0; i < spltParams.length; i++) { 
     var kvpSplt = spltParams[i].split('='); 
     var key = kvpSplt[0]; 
     var val = kvpSplt[1]; 
     // appending it 
     fd.append(key, val); 
    } 
    // appending file 
    fd.append('file', file); 

    var xhr = new XMLHttpRequest(); 
    xhr.upload.addEventListener("progress", function(){ 
     console.log('progress'); 
    }, false); 
    xhr.addEventListener("load", function(evt){ 
     console.log('completed',+ evt.target.responseText); 
    }, false); 
    xhr.addEventListener("error", function(){ 
     console.log('failed'); 
    }, false); 
    xhr.addEventListener("abort", function(){ 
     console.log('aborted'); 
    }, false); 
    console.log(host); 
    // posting request 
    xhr.open('POST', host, false); 

    xhr.send(fd); 
ion (err) { 
    console.error('error uploading file', err); 
}); 

使用上面的代碼我收到提示： POST http://qbprod.s3.amazonaws.com/ 403（禁止） 與

<?xml version="1.0" encoding="UTF-8"?> 
<Error> 
<Code>SignatureDoesNotMatch</Code> 
<Message>The request signature we calculated does not match the signature you provided. Check your key and signing method.</Message> 
<AWSAccessKeyId>AKIAIY7KFM23XGXJ7R7A</AWSAccessKeyId> 
<StringToSign>eyJleHBpcmF0aW9uIjoiMjAxNS0wNS0yNlQxNToxMzo0OVoiLCJjb25kaXRpb25zIjpbeyJidWNrZXQiOiJxYnByb2QifSx7ImtleSI6IjAwMzg2YmNhNzFlZjQ3MjE4NDg1YTA5Y2RlMGZmYjUzMDAifSx7ImFjbCI6ImF1dGhlb</StringToSign> 
<SignatureProvided>LmeGj%2BRRdWS0LXBF5ZB0V%2B7iIQs%3D</SignatureProvided> 
<StringToSignBytes> 6a 41 78 49 6e 31 64 66 51 25 33 44 25 33 44</StringToSignBytes> 
<RequestId>D8A12CA856F3FD17</RequestId> 
<HostId>i1Po/EpITRbloN+</HostId> 
</Error> 

在性反應

Answer 1

您應解析PARAMS後的值進行解碼; fd.append（key，decodeURIComponent（val））;