无法使用 REST API + AJAX 将文件上传到 Quickblox。 SignatureDoesNotMatch 错误

Question

我正在尝试按照 http://quickblox.com/developers/Content

中给出的说明上传文件

首先我正在创建文件，它总是成功，然后使用参数来响应创建文件，我正在尝试上传文件。它因 SignatureDoesNotMatch 错误而失败。在下面的源代码中，我试图展示整个算法。你能告诉我我做错了什么吗？

// 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);
});

使用上面的代码时出现错误： POST http://qbprod.s3.amazonaws.com/ 403（禁止）与

<?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>

回应

Answer 1

您应该在解析参数后解码值； fd.append(键, decodeURIComponent(val));

无法使用 REST API + AJAX 将文件上传到 Quickblox。 SignatureDoesNotMatch 错误

Can't upload fie to Quickblox using REST API + AJAX. SignatureDoesNotMatch error

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