commit 1eb50ebbf26d0cedc6677dabc78ba5253caf1fa1 · pyrox.dev/nixpkgs

nixos/modules/module-list.nix

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         ./services/web-servers/lighttpd/gitweb.nix

     

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         ./services/web-servers/nginx/default.nix

     

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         ./services/web-servers/phpfpm.nix

     

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         ./services/web-servers/shellinabox.nix

     

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         ./services/web-servers/tomcat.nix

     

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         ./services/web-servers/uwsgi.nix

     

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         ./services/web-servers/varnish/default.nix

+122

nixos/modules/services/web-servers/shellinabox.nix

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       { config, lib, pkgs, ... }:

     

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       with lib;

     

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       let

     

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         cfg = config.services.shellinabox;

     

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         # If a certificate file is specified, shellinaboxd requires

     

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         # a file descriptor to retrieve it

     

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         fd = "3";

     

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         createFd = optionalString (cfg.certFile != null) "${fd}<${cfg.certFile}";

     

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         # Command line arguments for the shellinabox daemon

     

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         args = [ "--background" ]

     

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          ++ optional (! cfg.enableSSL) "--disable-ssl"

     

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          ++ optional (cfg.certFile != null) "--cert-fd=${fd}"

     

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          ++ optional (cfg.certDirectory != null) "--cert=${cfg.certDirectory}"

     

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          ++ cfg.extraOptions;

     

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         # Command to start shellinaboxd

     

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         cmd = "${pkgs.shellinabox}/bin/shellinaboxd ${concatStringsSep " " args}";

     

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         # Command to start shellinaboxd if certFile is specified

     

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         wrappedCmd = "${pkgs.bash}/bin/bash -c 'exec ${createFd} && ${cmd}'";

     

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       in

     

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       {

     

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         ###### interface

     

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         options = {

     

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           services.shellinabox = {

     

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             enable = mkEnableOption "shellinabox daemon";

     

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             user = mkOption {

     

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               type = types.str;

     

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               default = "root";

     

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               description = ''

     

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                 User to run shellinaboxd as. If started as root, the server drops

     

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                 privileges by changing to nobody, unless overridden by the

     

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                 <literal>--user</literal> option.

     

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               '';

     

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             };

     

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             enableSSL = mkOption {

     

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               type = types.bool;

     

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               default = false;

     

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               description = ''

     

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                 Whether or not to enable SSL (https) support.

     

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               '';

     

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             };

     

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             certDirectory = mkOption {

     

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               type = types.nullOr types.path;

     

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               default = null;

     

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               example = "/var/certs";

     

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               description = ''

     

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                 The daemon will look in this directory far any certificates.

     

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                 If the browser negotiated a Server Name Identification the daemon

     

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                 will look for a matching certificate-SERVERNAME.pem file. If no SNI

     

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                 handshake takes place, it will fall back on using the certificate in the

     

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                 certificate.pem file.

     

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                 If no suitable certificate is installed, shellinaboxd will attempt to

     

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                 create a new self-signed certificate. This will only succeed if, after

     

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                 dropping privileges, shellinaboxd has write permissions for this

     

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                 directory.

     

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               '';

     

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             };

     

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             certFile = mkOption {

     

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               type = types.nullOr types.path;

     

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               default = null;

     

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               example = "/var/certificate.pem";

     

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               description = "Path to server SSL certificate.";

     

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             };

     

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             extraOptions = mkOption {

     

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               type = types.listOf types.str;

     

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               default = [ ];

     

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               example = [ "--port=443" "--service /:LOGIN" ];

     

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               description = ''

     

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                 A list of strings to be appended to the command line arguments

     

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                 for shellinaboxd. Please see the manual page

     

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                 <link xlink:href="https://code.google.com/p/shellinabox/wiki/shellinaboxd_man"/>

     

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                 for a full list of available arguments.

     

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               '';

     

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             };

     

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           };

     

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         };

     

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         ###### implementation

     

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         config = mkIf cfg.enable {

     

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           assertions =

     

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             [ { assertion = cfg.enableSSL == true

     

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                   -> cfg.certDirectory != null || cfg.certFile != null;

     

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                 message = "SSL is enabled for shellinabox, but no certDirectory or certFile has been specefied."; }

     

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               { assertion = ! (cfg.certDirectory != null && cfg.certFile != null);

     

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                 message = "Cannot set both certDirectory and certFile for shellinabox."; }

     

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             ];

     

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           systemd.services.shellinaboxd = {

     

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             description = "Shellinabox Web Server Daemon";

     

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             wantedBy = [ "multi-user.target" ];

     

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             requires = [ "sshd.service" ];

     

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             after = [ "sshd.service" ];

     

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             serviceConfig = {

     

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               Type = "forking";

     

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               User = "${cfg.user}";

     

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               ExecStart = "${if cfg.certFile == null then "${cmd}" else "${wrappedCmd}"}";

     

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               ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";

     

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             };

     

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           };

     

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         };

     

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       }