mirror of
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569 lines
20 KiB
Nix
569 lines
20 KiB
Nix
{ config, pkgs, lib, ... }:
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with lib;
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let
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cfg = config.services.wordpress;
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eachSite = cfg.sites;
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user = "wordpress";
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webserver = config.services.${cfg.webserver};
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stateDir = hostName: "/var/lib/wordpress/${hostName}";
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pkg = hostName: cfg: pkgs.stdenv.mkDerivation rec {
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pname = "wordpress-${hostName}";
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version = src.version;
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src = cfg.package;
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installPhase = ''
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mkdir -p $out
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cp -r * $out/
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# symlink the wordpress config
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ln -s ${wpConfig hostName cfg} $out/share/wordpress/wp-config.php
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# symlink uploads directory
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ln -s ${cfg.uploadsDir} $out/share/wordpress/wp-content/uploads
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ln -s ${cfg.fontsDir} $out/share/wordpress/wp-content/fonts
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# https://github.com/NixOS/nixpkgs/pull/53399
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#
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# Symlinking works for most plugins and themes, but Avada, for instance, fails to
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# understand the symlink, causing its file path stripping to fail. This results in
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# requests that look like: https://example.com/wp-content//nix/store/...plugin/path/some-file.js
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# Since hard linking directories is not allowed, copying is the next best thing.
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# copy additional plugin(s), theme(s) and language(s)
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${concatStringsSep "\n" (mapAttrsToList (name: theme: "cp -r ${theme} $out/share/wordpress/wp-content/themes/${name}") cfg.themes)}
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${concatStringsSep "\n" (mapAttrsToList (name: plugin: "cp -r ${plugin} $out/share/wordpress/wp-content/plugins/${name}") cfg.plugins)}
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${concatMapStringsSep "\n" (language: "cp -r ${language} $out/share/wordpress/wp-content/languages/") cfg.languages}
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'';
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};
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mergeConfig = cfg: {
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# wordpress is installed onto a read-only file system
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DISALLOW_FILE_EDIT = true;
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AUTOMATIC_UPDATER_DISABLED = true;
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DB_NAME = cfg.database.name;
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DB_HOST = "${cfg.database.host}:${if cfg.database.socket != null then cfg.database.socket else toString cfg.database.port}";
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DB_USER = cfg.database.user;
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DB_CHARSET = "utf8";
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# Always set DB_PASSWORD even when passwordFile is not set. This is the
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# default Wordpress behaviour.
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DB_PASSWORD = if (cfg.database.passwordFile != null) then { _file = cfg.database.passwordFile; } else "";
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} // cfg.settings;
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wpConfig = hostName: cfg: let
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conf_gen = c: mapAttrsToList (k: v: "define('${k}', ${mkPhpValue v});") cfg.mergedConfig;
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in pkgs.writeTextFile {
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name = "wp-config-${hostName}.php";
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text = ''
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<?php
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$table_prefix = '${cfg.database.tablePrefix}';
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require_once('${stateDir hostName}/secret-keys.php');
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${cfg.extraConfig}
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${concatStringsSep "\n" (conf_gen cfg.mergedConfig)}
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if ( !defined('ABSPATH') )
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define('ABSPATH', dirname(__FILE__) . '/');
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require_once(ABSPATH . 'wp-settings.php');
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?>
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'';
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checkPhase = "${pkgs.php81}/bin/php --syntax-check $target";
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};
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mkPhpValue = v: let
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isHasAttr = s: isAttrs v && hasAttr s v;
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in
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if isString v then escapeShellArg v
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# NOTE: If any value contains a , (comma) this will not get escaped
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else if isList v && any lib.strings.isCoercibleToString v then escapeShellArg (concatMapStringsSep "," toString v)
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else if isInt v then toString v
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else if isBool v then boolToString v
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else if isHasAttr "_file" then "trim(file_get_contents(${lib.escapeShellArg v._file}))"
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else if isHasAttr "_raw" then v._raw
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else abort "The Wordpress config value ${lib.generators.toPretty {} v} can not be encoded."
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;
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secretsVars = [ "AUTH_KEY" "SECURE_AUTH_KEY" "LOGGED_IN_KEY" "NONCE_KEY" "AUTH_SALT" "SECURE_AUTH_SALT" "LOGGED_IN_SALT" "NONCE_SALT" ];
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secretsScript = hostStateDir: ''
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# The match in this line is not a typo, see https://github.com/NixOS/nixpkgs/pull/124839
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grep -q "LOOGGED_IN_KEY" "${hostStateDir}/secret-keys.php" && rm "${hostStateDir}/secret-keys.php"
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if ! test -e "${hostStateDir}/secret-keys.php"; then
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umask 0177
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echo "<?php" >> "${hostStateDir}/secret-keys.php"
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${concatMapStringsSep "\n" (var: ''
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echo "define('${var}', '`tr -dc a-zA-Z0-9 </dev/urandom | head -c 64`');" >> "${hostStateDir}/secret-keys.php"
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'') secretsVars}
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echo "?>" >> "${hostStateDir}/secret-keys.php"
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chmod 440 "${hostStateDir}/secret-keys.php"
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fi
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'';
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siteOpts = { lib, name, config, ... }:
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{
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options = {
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package = mkPackageOption pkgs "wordpress" { };
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uploadsDir = mkOption {
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type = types.path;
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default = "/var/lib/wordpress/${name}/uploads";
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description = lib.mdDoc ''
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This directory is used for uploads of pictures. The directory passed here is automatically
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created and permissions adjusted as required.
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'';
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};
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fontsDir = mkOption {
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type = types.path;
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default = "/var/lib/wordpress/${name}/fonts";
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description = lib.mdDoc ''
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This directory is used to download fonts from a remote location, e.g.
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to host google fonts locally.
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'';
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};
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plugins = mkOption {
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type = with types; coercedTo
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(listOf path)
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(l: warn "setting this option with a list is deprecated"
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listToAttrs (map (p: nameValuePair (p.name or (throw "${p} does not have a name")) p) l))
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(attrsOf path);
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default = {};
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description = lib.mdDoc ''
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Path(s) to respective plugin(s) which are copied from the 'plugins' directory.
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::: {.note}
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These plugins need to be packaged before use, see example.
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:::
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'';
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example = literalExpression ''
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{
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inherit (pkgs.wordpressPackages.plugins) embed-pdf-viewer-plugin;
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}
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'';
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};
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themes = mkOption {
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type = with types; coercedTo
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(listOf path)
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(l: warn "setting this option with a list is deprecated"
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listToAttrs (map (p: nameValuePair (p.name or (throw "${p} does not have a name")) p) l))
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(attrsOf path);
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default = { inherit (pkgs.wordpressPackages.themes) twentytwentythree; };
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defaultText = literalExpression "{ inherit (pkgs.wordpressPackages.themes) twentytwentythree; }";
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description = lib.mdDoc ''
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Path(s) to respective theme(s) which are copied from the 'theme' directory.
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::: {.note}
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These themes need to be packaged before use, see example.
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:::
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'';
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example = literalExpression ''
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{
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inherit (pkgs.wordpressPackages.themes) responsive-theme;
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}
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'';
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};
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languages = mkOption {
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type = types.listOf types.path;
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default = [];
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description = lib.mdDoc ''
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List of path(s) to respective language(s) which are copied from the 'languages' directory.
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'';
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example = literalExpression ''
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[
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# Let's package the German language.
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# For other languages try to replace language and country code in the download URL with your desired one.
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# Reference https://translate.wordpress.org for available translations and
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# codes.
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(pkgs.stdenv.mkDerivation {
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name = "language-de";
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src = pkgs.fetchurl {
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url = "https://de.wordpress.org/wordpress-''${pkgs.wordpress.version}-de_DE.tar.gz";
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# Name is required to invalidate the hash when wordpress is updated
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name = "wordpress-''${pkgs.wordpress.version}-language-de";
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sha256 = "sha256-dlas0rXTSV4JAl8f/UyMbig57yURRYRhTMtJwF9g8h0=";
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};
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installPhase = "mkdir -p $out; cp -r ./wp-content/languages/* $out/";
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})
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];
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'';
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};
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database = {
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host = mkOption {
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type = types.str;
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default = "localhost";
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description = lib.mdDoc "Database host address.";
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};
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port = mkOption {
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type = types.port;
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default = 3306;
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description = lib.mdDoc "Database host port.";
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};
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name = mkOption {
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type = types.str;
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default = "wordpress";
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description = lib.mdDoc "Database name.";
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};
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user = mkOption {
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type = types.str;
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default = "wordpress";
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description = lib.mdDoc "Database user.";
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};
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passwordFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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example = "/run/keys/wordpress-dbpassword";
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description = lib.mdDoc ''
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A file containing the password corresponding to
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{option}`database.user`.
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'';
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};
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tablePrefix = mkOption {
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type = types.str;
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default = "wp_";
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description = lib.mdDoc ''
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The $table_prefix is the value placed in the front of your database tables.
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Change the value if you want to use something other than wp_ for your database
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prefix. Typically this is changed if you are installing multiple WordPress blogs
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in the same database.
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See <https://codex.wordpress.org/Editing_wp-config.php#table_prefix>.
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'';
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};
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socket = mkOption {
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type = types.nullOr types.path;
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default = null;
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defaultText = literalExpression "/run/mysqld/mysqld.sock";
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description = lib.mdDoc "Path to the unix socket file to use for authentication.";
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};
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createLocally = mkOption {
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type = types.bool;
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default = true;
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description = lib.mdDoc "Create the database and database user locally.";
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};
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};
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virtualHost = mkOption {
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type = types.submodule (import ../web-servers/apache-httpd/vhost-options.nix);
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example = literalExpression ''
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{
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adminAddr = "webmaster@example.org";
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forceSSL = true;
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enableACME = true;
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}
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'';
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description = lib.mdDoc ''
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Apache configuration can be done by adapting {option}`services.httpd.virtualHosts`.
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'';
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};
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poolConfig = mkOption {
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type = with types; attrsOf (oneOf [ str int bool ]);
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default = {
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"pm" = "dynamic";
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"pm.max_children" = 32;
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"pm.start_servers" = 2;
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"pm.min_spare_servers" = 2;
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"pm.max_spare_servers" = 4;
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"pm.max_requests" = 500;
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};
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description = lib.mdDoc ''
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Options for the WordPress PHP pool. See the documentation on `php-fpm.conf`
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for details on configuration directives.
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'';
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};
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settings = mkOption {
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type = types.attrsOf types.anything;
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default = {};
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description = lib.mdDoc ''
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Structural Wordpress configuration.
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Refer to <https://developer.wordpress.org/apis/wp-config-php>
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for details and supported values.
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'';
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example = literalExpression ''
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{
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WP_DEFAULT_THEME = "twentytwentytwo";
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WP_SITEURL = "https://example.org";
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WP_HOME = "https://example.org";
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WP_DEBUG = true;
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WP_DEBUG_DISPLAY = true;
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WPLANG = "de_DE";
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FORCE_SSL_ADMIN = true;
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AUTOMATIC_UPDATER_DISABLED = true;
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}
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'';
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};
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mergedConfig = mkOption {
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readOnly = true;
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default = mergeConfig config;
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defaultText = literalExpression ''
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{
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DISALLOW_FILE_EDIT = true;
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AUTOMATIC_UPDATER_DISABLED = true;
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}
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'';
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description = lib.mdDoc ''
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Read only representation of the final configuration.
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'';
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};
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extraConfig = mkOption {
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type = types.lines;
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default = "";
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description = lib.mdDoc ''
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Any additional text to be appended to the wp-config.php
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configuration file. This is a PHP script. For configuration
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settings, see <https://codex.wordpress.org/Editing_wp-config.php>.
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**Note**: Please pass structured settings via
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`services.wordpress.sites.${name}.settings` instead.
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'';
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example = ''
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@ini_set( 'log_errors', 'Off' );
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@ini_set( 'display_errors', 'On' );
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'';
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};
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};
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config.virtualHost.hostName = mkDefault name;
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};
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in
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{
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# interface
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options = {
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services.wordpress = {
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sites = mkOption {
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type = types.attrsOf (types.submodule siteOpts);
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default = {};
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description = lib.mdDoc "Specification of one or more WordPress sites to serve";
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};
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webserver = mkOption {
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type = types.enum [ "httpd" "nginx" "caddy" ];
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default = "httpd";
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description = lib.mdDoc ''
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Whether to use apache2 or nginx for virtual host management.
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Further nginx configuration can be done by adapting `services.nginx.virtualHosts.<name>`.
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See [](#opt-services.nginx.virtualHosts) for further information.
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Further apache2 configuration can be done by adapting `services.httpd.virtualHosts.<name>`.
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See [](#opt-services.httpd.virtualHosts) for further information.
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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 (eachSite != {}) (mkMerge [{
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assertions =
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(mapAttrsToList (hostName: cfg:
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{ assertion = cfg.database.createLocally -> cfg.database.user == user;
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message = ''services.wordpress.sites."${hostName}".database.user must be ${user} if the database is to be automatically provisioned'';
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}) eachSite) ++
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(mapAttrsToList (hostName: cfg:
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{ assertion = cfg.database.createLocally -> cfg.database.passwordFile == null;
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message = ''services.wordpress.sites."${hostName}".database.passwordFile cannot be specified if services.wordpress.sites."${hostName}".database.createLocally is set to true.'';
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}) eachSite);
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services.mysql = mkIf (any (v: v.database.createLocally) (attrValues eachSite)) {
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enable = true;
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package = mkDefault pkgs.mariadb;
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ensureDatabases = mapAttrsToList (hostName: cfg: cfg.database.name) eachSite;
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ensureUsers = mapAttrsToList (hostName: cfg:
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{ name = cfg.database.user;
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ensurePermissions = { "${cfg.database.name}.*" = "ALL PRIVILEGES"; };
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}
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) eachSite;
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};
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services.phpfpm.pools = mapAttrs' (hostName: cfg: (
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nameValuePair "wordpress-${hostName}" {
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inherit user;
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group = webserver.group;
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settings = {
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"listen.owner" = webserver.user;
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"listen.group" = webserver.group;
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} // cfg.poolConfig;
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}
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)) eachSite;
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}
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(mkIf (cfg.webserver == "httpd") {
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services.httpd = {
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enable = true;
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extraModules = [ "proxy_fcgi" ];
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virtualHosts = mapAttrs (hostName: cfg: mkMerge [ cfg.virtualHost {
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documentRoot = mkForce "${pkg hostName cfg}/share/wordpress";
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extraConfig = ''
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<Directory "${pkg hostName cfg}/share/wordpress">
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<FilesMatch "\.php$">
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<If "-f %{REQUEST_FILENAME}">
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SetHandler "proxy:unix:${config.services.phpfpm.pools."wordpress-${hostName}".socket}|fcgi://localhost/"
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</If>
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</FilesMatch>
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# standard wordpress .htaccess contents
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<IfModule mod_rewrite.c>
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RewriteEngine On
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RewriteBase /
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RewriteRule ^index\.php$ - [L]
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RewriteCond %{REQUEST_FILENAME} !-f
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RewriteCond %{REQUEST_FILENAME} !-d
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RewriteRule . /index.php [L]
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</IfModule>
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DirectoryIndex index.php
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Require all granted
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Options +FollowSymLinks -Indexes
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</Directory>
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# https://wordpress.org/support/article/hardening-wordpress/#securing-wp-config-php
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<Files wp-config.php>
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Require all denied
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</Files>
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'';
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} ]) eachSite;
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};
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})
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{
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systemd.tmpfiles.rules = flatten (mapAttrsToList (hostName: cfg: [
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"d '${stateDir hostName}' 0750 ${user} ${webserver.group} - -"
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"d '${cfg.uploadsDir}' 0750 ${user} ${webserver.group} - -"
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"Z '${cfg.uploadsDir}' 0750 ${user} ${webserver.group} - -"
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"d '${cfg.fontsDir}' 0750 ${user} ${webserver.group} - -"
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"Z '${cfg.fontsDir}' 0750 ${user} ${webserver.group} - -"
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]) eachSite);
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systemd.services = mkMerge [
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(mapAttrs' (hostName: cfg: (
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nameValuePair "wordpress-init-${hostName}" {
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wantedBy = [ "multi-user.target" ];
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before = [ "phpfpm-wordpress-${hostName}.service" ];
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after = optional cfg.database.createLocally "mysql.service";
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script = secretsScript (stateDir hostName);
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serviceConfig = {
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Type = "oneshot";
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User = user;
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Group = webserver.group;
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};
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})) eachSite)
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(optionalAttrs (any (v: v.database.createLocally) (attrValues eachSite)) {
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httpd.after = [ "mysql.service" ];
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})
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];
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users.users.${user} = {
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group = webserver.group;
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isSystemUser = true;
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};
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}
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(mkIf (cfg.webserver == "nginx") {
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services.nginx = {
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enable = true;
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virtualHosts = mapAttrs (hostName: cfg: {
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serverName = mkDefault hostName;
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root = "${pkg hostName cfg}/share/wordpress";
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extraConfig = ''
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index index.php;
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'';
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locations = {
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"/" = {
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priority = 200;
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extraConfig = ''
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try_files $uri $uri/ /index.php$is_args$args;
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'';
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};
|
|
"~ \\.php$" = {
|
|
priority = 500;
|
|
extraConfig = ''
|
|
fastcgi_split_path_info ^(.+\.php)(/.+)$;
|
|
fastcgi_pass unix:${config.services.phpfpm.pools."wordpress-${hostName}".socket};
|
|
fastcgi_index index.php;
|
|
include "${config.services.nginx.package}/conf/fastcgi.conf";
|
|
fastcgi_param PATH_INFO $fastcgi_path_info;
|
|
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
|
|
# Mitigate https://httpoxy.org/ vulnerabilities
|
|
fastcgi_param HTTP_PROXY "";
|
|
fastcgi_intercept_errors off;
|
|
fastcgi_buffer_size 16k;
|
|
fastcgi_buffers 4 16k;
|
|
fastcgi_connect_timeout 300;
|
|
fastcgi_send_timeout 300;
|
|
fastcgi_read_timeout 300;
|
|
'';
|
|
};
|
|
"~ /\\." = {
|
|
priority = 800;
|
|
extraConfig = "deny all;";
|
|
};
|
|
"~* /(?:uploads|files)/.*\\.php$" = {
|
|
priority = 900;
|
|
extraConfig = "deny all;";
|
|
};
|
|
"~* \\.(js|css|png|jpg|jpeg|gif|ico)$" = {
|
|
priority = 1000;
|
|
extraConfig = ''
|
|
expires max;
|
|
log_not_found off;
|
|
'';
|
|
};
|
|
};
|
|
}) eachSite;
|
|
};
|
|
})
|
|
|
|
(mkIf (cfg.webserver == "caddy") {
|
|
services.caddy = {
|
|
enable = true;
|
|
virtualHosts = mapAttrs' (hostName: cfg: (
|
|
nameValuePair "http://${hostName}" {
|
|
extraConfig = ''
|
|
root * /${pkg hostName cfg}/share/wordpress
|
|
file_server
|
|
|
|
php_fastcgi unix/${config.services.phpfpm.pools."wordpress-${hostName}".socket}
|
|
|
|
@uploads {
|
|
path_regexp path /uploads\/(.*)\.php
|
|
}
|
|
rewrite @uploads /
|
|
|
|
@wp-admin {
|
|
path not ^\/wp-admin/*
|
|
}
|
|
rewrite @wp-admin {path}/index.php?{query}
|
|
'';
|
|
}
|
|
)) eachSite;
|
|
};
|
|
})
|
|
|
|
|
|
]);
|
|
}
|