Make global environment available to CGI script?

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1

Hi, I’m trying to get the mighttpd2 CGI server to run my .cgi scripts.

But mighttpd2 already fails at the .cgi script’s first line #!/usr/bin/env bash saying ‘bash: no such file or directory’. For the user under which mighttpd2 runs, bash is available.

Any idea how I can share the global environment with the .cgi scripts?

2

systemd services run with a restricted environment normally. You can add to the .service file an option to set an environment variable, including PATH, or, for a quick workaround, you could also just use the static absolute path to the system-wide installed version, /run/current-system/sw/bin/bash.

3

Thanks teying! But I don’t understand how I could change the .service file? NixOS generates the service file from this config:

  services.mighttpd2 = {
    enable = true;
    config = ''
      Port: 1234
    '';
    routing = ''
      [*]
      /cgi-bin/ => /var/www/cgi-bin/
    '';
  };

… and the mighttpd2 only has this 3 and one more keys.

4

You can see in the module that it’s setting options under systemd.services.mighttpd2 in order to create the service. You can thus set systemd.services.mighttpd2.environment.PATH = "whatever you want the PATH to be"; in order to set the PATH that the service runs with.

You may want to use lib.makeBinPath to create the string.

EDIT: Actually, you should use systemd.services.mighttpd2.path = [ pkgs.foo pkgs.bar ]; instead.

1 Like
5

Please use systemd.services.mighthttp2.path instead!

2 Likes
6

Thank you. Right, setting PATH doesn’t work (“error: The option `systemd.services.mighttpd2.environment.PATH’ has conflicting definition values:”).

It works with this line:

systemd.services.mighttpd2.path = [ pkgs.bash ];

Note that if a path as string is given, “/bin” and “/sbin” are appended automatically.

Thank you both!

7

NO!

Just pass the drvs you really need. This makes your application depend on the state of your system

1 Like