amazon-s3 - 生成格式为 : s3. amazonaws.com/bucket.name 的预签名 URL

Question

我正在生成预签名 URL，但由于 *.s3.amazonaws 证书，它对于带有句点和 SSL 的存储桶名称会出现问题，如下所述: http://shlomoswidler.com/2009/08/amazon-s3-gotcha-using-virtual-host.html

有没有办法生成以下格式的网址？: http://s3.amazonaws.com/bucket.name/key

我在 API 中没有看到选项。我猜我可以通过重新排列网址来“手动”完成此操作，但如果没有必要，我宁愿避免黑客攻击。

根据迈克尔的回答，这是我现在使用的代码:

public static URL bucketNameAfterS3Url(URL url) {

    int index = url.getHost().indexOf("s3");
    String host = url.getHost().substring(index);
    String bucket = url.getHost().substring(0, index - 1);
    URL toUse;
    try {
        toUse = new URL(url.getProtocol(), host, url.getPort(), '/' + bucket + url.getFile());
    } catch (MalformedURLException e) {
    }
    return toUse;
}

Answer 1

S3 客户端允许您设置一个选项来配置此功能:

    // Configure the S3 client to generate urls with valid SSL certificates. With this setting we will get urls
    // like https://s3.amazonaws.com/bucket_name/... but if this is not set we will get urls like
    // https://bucket_name.s3.amazonaws.com/ which will cause the browser to complain about invalid SSL
    // certificates.
    s3Client.setS3ClientOptions(new S3ClientOptions().withPathStyleAccess(true));