I occasionally have need to download a backup from an instance where I can’t ssh. Pulling 2GB down over my home internet connection where speedtest.net claims I get almost 500Mbps down isn’t that painful, but pushing it back up a 20Mbps is.
I thought that I might be able to use curl and pass an API key to download the backup, but what it gets is a redirect in an HTML document, and trying that URL in curl ends in a “bad request.”
Is there some way to do this that I’m missing?
Yeah, sounds familiar. I made this a few years ago. Haven’t used it in a while though so I’m not sure if it still works without modifications.
Wow! My dreams (maybe) answered! Thanks, Michael. I guess I should have searched a bit harder.
Why not just SCP server to server?
It uses SSH, will allow transfers that don’t hit your local line, and is already present on every host.
There exist Discourse instances on the planet where I have admin access, but not SSH/SCP access. 
我也遇到了同样的问题，试图从一台非我自己的机器（因此没有 SSH 访问权限）上拉取备份。由于我使用 Brevo 作为电子邮件提供商，他们会篡改链接以重定向到他们自己的服务器进行跟踪，这使得问题更加复杂。
对于备份电子邮件，最好明确显示完整的 URL 和令牌，而不是将其隐藏在 a href 中，因为电子邮件提供商可能会覆盖它。
您仍然需要登录，否则链接将无法正常工作。
有没有一种简单的方法可以在远程机器的命令行上“登录”，然后再发出 wget 来下载备份？
你试过我第二个帖子里的脚本吗？