能否支持ftp over http proxy

[honwhy]

I have forked your project, and now I'm doing some testing Test Code

    @Test
    public void test_over_http_proxy() throws IOException {
        FTPHTTPClient client = new FTPHTTPClient("127.0.0.1", proxyPort);
        //client.setProxy(new Proxy(Proxy.Type.HTTP, new InetSocketAddress("127.0.0.1", proxyPort)));
        client.setConnectTimeout(3000);
        client.connect("127.0.0.1", ftpPort);
        client.getReplyCode();
        Assert.assertTrue(client.isConnected());
        client.disconnect();
    }

maven

        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
            <version>3.6</version>
        </dependency>

我debug跟踪了下，connect请求有正确处理的，但是没有见到流量转发请求

[monkeyWie]

实现的是标准的http代理协议，应该是支持的啊