Not working/borked behind a nginx reverse proxy subpath

[farfalleflickan]

Here is my nginx setup:

location /files/ {
    proxy_buffering off;
    proxy_buffer_size 4k;
    proxy_read_timeout  120;
    proxy_request_buffering off;
    client_max_body_size 1G; # Make the number the same as 'max-share-size' in fileshelter.conf

    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $http_host;

    proxy_pass http://127.0.0.1:8003/;
}

With this in nginx and fileshelter's deploy-path set to the default /, everything works fine BUT the download link is wrong and points to the root of the domain (do note that if I manually add the files subpath to the download link, it all works fine).

But if I do set deploy-path to files, then nothing works at all and in the browser console I see a bunch of MIME type errors as I have nginx configured with X-Content-Type-Options: nosniff. If I turn this off then I get loading errors like Fatal error: failed loading /files/resources/themes/bootstrap/5/bootstrap.bundle.min.js

Basically, i am in a catch 22, if I set deploy-path to my subpath it is entirely fucked, if I don't only the download button is fucked. Looks to me as if deploy-path is also impacting the resources path, so maybe it is used internally by Wt?

[farfalleflickan]

Re-looking, at the code and comparing ShareUtils.cpp (whose links are correct, they contain the subpath) with ShareResource.cpp (which does not...)

maybe ShareResource.cpp:createLink

return {Wt::LinkType::Url, std::string {getDeployPath()} + "?id=" + uuid.toString() + (password ? ("&p=" + Wt::Utils::hexEncode(std::string {*password})) : "")};`

should be

return {Wt::LinkType::Url, wApp->environment().urlScheme() + "://" + wApp->environment().hostName() + (wApp->environment().deploymentPath() == "/" ? "" : wApp->environment().deploymentPath()) + "?id=" + uuid.toString() + (password ? ("&p=" + Wt::Utils::hexEncode(std::string {*password})) : "")};

Which is basically a mashup of ShareResource.cpp and ShareUtils.cpp.
I wasn't able to get libwt running on my Debian setup so I unfortunately cannot test this myself....