How to modify outgoing traffic

Question

I'm running Calibre with its Calibre Content Server on Debian. This serves webpages which show a book library, including the ability to both download books and to read the books in the browser. I would like to remove the download button, and there is no option in the Calibre server to remove it. While its open source and I suppose I could dig through the code, remove it there, and recompile from source, I figured there must be a way to modify things the system is serving.

I read (here: How to inject HTML code into every delivered HTML page?) about using mod_rewrite or an Apache filter to do this kind of thing, but as far as I understand, that would only work for things I am serving from Apache, not from other applications like Calibre.

Is there an easy way to accomplish this? Thanks!

score 0 · Accepted Answer · answered Oct 25 '17 at 20:10

0

You could set up nginx as a proxy (see proxy_pass) in front of it and use this module https://nginx.ru/en/docs/http/ngx_http_sub_module.html

The ngx_http_sub_module module is a filter that modifies a response by replacing one specified string by another

answered Oct 25 '17 at 20:10

ffeast

171
2

Thanks, this looks perfect. I think that will do exactly what I am looking for. – fivestones Oct 29 '17 at 21:55

How to modify outgoing traffic

1 Answers1