如何构建PHP / Node代理以在https网站上呈现外部http映像？ [英] How to build a PHP/Node proxy to render external http images on https website?

问题描述

我有一个在 https 上运行的网站。
我必须从没有https的外部服务器（外部域）加载图像，但是单个 http 协议。

I have a website running on https. I have to load images from external server (external domain) which doesn't have https, but single http protocol.

有没有办法通过PHP或Node处理 http 图像的代理？所以我可以像这样渲染图像：

Is there's any way to handle proxy for http images via PHP or Node? So I can render images like this:

<img src="https://domain.com/proxy?url=http://externaldomain.com/image.jpg" />

这个想法是避免在本地保存图像，但只显示它们。

The idea is to avoid saving images on local, but only display them.

当我尝试在 https 域内呈现 http 服务图像时，我得到了这个控制台消息：

When I try to render http served images inside https domain, I get this console message:

https： //domain.com/ 显示来自 http://externaldomain.com/image.jpg。

同样，地址栏内的SSL（/ https）锁定图标变为灰色。

As well, my SSL (/https) lock icon inside address bar becomes grey.

推荐答案

您可以使用node，它只管道图像，而不是在发送到客户端之前将整个图像加载到内存中（如 file_get_contents 会在php中执行）。
为了简化流媒体，请在此示例中使用请求：

You can use node, which will just pipe the image instead of loading the whole image into memory before sending to the client (like file_get_contents would do in php). Using request in this example for simplicity in streaming:

var https = require('https');
var url = require('url');
var request = require('request');

var server = https.createServer(function (req, res) {
  var queryData = url.parse(req.url, true).query;

  if (queryData.url) {
    var x = request(queryData.url);
    req.pipe(x).pipe(res);
  } else {
    res.writeHead(400, {"Content-Type": "text/plain"});
    res.end("No url");
  }
});

// Listen on port 443
server.listen(443);

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