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尝试将文件上传到 S3 时出现意外的 403。奇怪的是，当我使用 Java AWS SDK 生成预签名 url 时，我已经完成了这项工作。我现在使用 Python AWS SDK 来生成预签名的 url，我觉得我在做同样的事情。

这是我工作没问题的代码：

public UploadSignedRequest getUploadSignedRequest() {

    AmazonS3 s3Client = getS3Client();

    // Set the pre-signed URL to expire after one hour.
    Date expiration = DateUtil.getSignedUrlExpirationDate();

    // Generate the pre-signed URL.
    String objectKey = UUID.randomUUID().toString();
    GeneratePresignedUrlRequest generatePresignedUrlRequest = new GeneratePresignedUrlRequest(BUCKET_NAME, objectKey)
            .withMethod(HttpMethod.PUT)
            .withExpiration(expiration);
    String s3FilePath = String.format("%s/%s/%s", S3_URL, BUCKET_NAME, objectKey);
    URL signedRequest = s3Client.generatePresignedUrl(generatePresignedUrlRequest);
    return new UploadSignedRequest(signedRequest, s3FilePath, objectKey);
}

这是成功的客户端代码：

var config = {
    onUploadProgress: function (progressEvent) {
        var percentCompleted = Math.round((progressEvent.loaded * 100) / progressEvent.total);
        updateProgressFunc(percentCompleted);
    }
};
axios
    .put(signedRequest.signedRequestUrl, videoFile, config)
    .then(res => {
        console.log(res);
        console.log(res.status);
        // save video metadata in db
        dispatch(saveVideoMetadata(video));
    })
    .catch(function (error) {
        console.log(error);
    });

现在，这是我尝试使用 Python AWS 开发工具包完成基本相同的事情（图像文件而不是视频文件）。

def getS3UploadRequest(uuid):
return S3.generate_presigned_url(
    ClientMethod='put_object',
    Params={
        'Bucket': BUCKET,
        'Key': uuid
    }
)

我得到 403 的客户端代码：

        axios
            .put(signedRequest, attachedFile)
            .then(res => {
                console.log("successfully uploaded file to s3");
                console.log(res);
                // dispatch(createProjectTaskComment(newComment, projectTaskId, userId, isFreelancer));
            });

当我尝试在邮递员中使用 presignedUrl 时，我得到以下响应：

?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>gibberish</AWSAccessKeyId><StringToSign>PUT

谢谢您的帮助！！！

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0 回答 0