From 48619f77a4b2c02ebc964a3b7afd7341c65dda11 Mon Sep 17 00:00:00 2001
From: Guillaume Girol <symphorien+git@xlumurb.eu>
Date: Sun, 8 Aug 2021 12:00:00 +0000
Subject: nixos/tt-rss: make all php files read only

Fixes: #55300
---
 nixos/modules/services/web-apps/tt-rss.nix | 70 +++++++++++++++---------------
 1 file changed, 36 insertions(+), 34 deletions(-)

(limited to 'nixos')

diff --git a/nixos/modules/services/web-apps/tt-rss.nix b/nixos/modules/services/web-apps/tt-rss.nix
index ed13845915c..bc18c824f39 100644
--- a/nixos/modules/services/web-apps/tt-rss.nix
+++ b/nixos/modules/services/web-apps/tt-rss.nix
@@ -6,10 +6,6 @@ let
 
   configVersion = 26;
 
-  cacheDir = "cache";
-  lockDir = "lock";
-  feedIconsDir = "feed-icons";
-
   dbPort = if cfg.database.port == null
     then (if cfg.database.type == "pgsql" then 5432 else 3306)
     else cfg.database.port;
@@ -32,10 +28,10 @@ let
     <?php
       putenv('TTRSS_PHP_EXECUTABLE=${pkgs.php}/bin/php');
 
-      putenv('TTRSS_LOCK_DIRECTORY=${lockDir}');
-      putenv('TTRSS_CACHE_DIR=${cacheDir}');
-      putenv('TTRSS_ICONS_DIR=${feedIconsDir}');
-      putenv('TTRSS_ICONS_URL=${feedIconsDir}');
+      putenv('TTRSS_LOCK_DIRECTORY=${cfg.root}/lock');
+      putenv('TTRSS_CACHE_DIR=${cfg.root}/cache');
+      putenv('TTRSS_ICONS_DIR=${cfg.root}/feed-icons');
+      putenv('TTRSS_ICONS_URL=feed-icons');
       putenv('TTRSS_SELF_URL_PATH=${cfg.selfUrlPath}');
 
       putenv('TTRSS_MYSQL_CHARSET=UTF8');
@@ -101,6 +97,22 @@ let
       ${cfg.extraConfig}
   '';
 
+  # tt-rss and plugins and themes and config.php
+  servedRoot = pkgs.runCommand "tt-rss-served-root" {} ''
+    cp --no-preserve=mode -r ${pkgs.tt-rss} $out
+    cp ${tt-rss-config} $out/config.php
+    ${optionalString (cfg.pluginPackages != []) ''
+    for plugin in ${concatStringsSep " " cfg.pluginPackages}; do
+    cp -r "$plugin"/* "$out/plugins.local/"
+    done
+    ''}
+    ${optionalString (cfg.themePackages != []) ''
+    for theme in ${concatStringsSep " " cfg.themePackages}; do
+    cp -r "$theme"/* "$out/themes.local/"
+    done
+    ''}
+  '';
+
  in {
 
   ###### interface
@@ -544,12 +556,16 @@ let
       enable = true;
       virtualHosts = {
         ${cfg.virtualHost} = {
-          root = "${cfg.root}";
+          root = "${cfg.root}/www";
 
           locations."/" = {
             index = "index.php";
           };
 
+          locations."^~ /feed-icons" = {
+            root = "${cfg.root}";
+          };
+
           locations."~ \\.php$" = {
             extraConfig = ''
               fastcgi_split_path_info ^(.+\.php)(/.+)$;
@@ -562,13 +578,19 @@ let
     };
 
     systemd.tmpfiles.rules = [
-      "d '${cfg.root}' 0755 ${cfg.user} tt_rss - -"
-      "Z '${cfg.root}' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}' 0555 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/lock' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/cache' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/cache/upload' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/cache/images' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/cache/export' 0755 ${cfg.user} tt_rss - -"
+      "d '${cfg.root}/feed-icons' 0755 ${cfg.user} tt_rss - -"
+      "L+ '${cfg.root}/www' - - - - ${servedRoot}"
     ];
 
     systemd.services = {
       phpfpm-tt-rss = mkIf (cfg.pool == "${poolName}") {
-        restartTriggers = [ tt-rss-config pkgs.tt-rss ];
+        restartTriggers = [ servedRoot ];
       };
 
       tt-rss = {
@@ -594,27 +616,7 @@ let
 
               else "";
 
-        in ''
-          rm -rf "${cfg.root}/*"
-          cp -r "${pkgs.tt-rss}/"* "${cfg.root}"
-          ${optionalString (cfg.pluginPackages != []) ''
-            for plugin in ${concatStringsSep " " cfg.pluginPackages}; do
-              cp -r "$plugin"/* "${cfg.root}/plugins.local/"
-            done
-          ''}
-          ${optionalString (cfg.themePackages != []) ''
-            for theme in ${concatStringsSep " " cfg.themePackages}; do
-              cp -r "$theme"/* "${cfg.root}/themes.local/"
-            done
-          ''}
-          ln -sf "${tt-rss-config}" "${cfg.root}/config.php"
-          chmod -R 755 "${cfg.root}"
-          chmod -R ug+rwX "${cfg.root}/${lockDir}"
-          chmod -R ug+rwX "${cfg.root}/${cacheDir}"
-          chmod -R ug+rwX "${cfg.root}/${feedIconsDir}"
-        ''
-
-        + (optionalString (cfg.database.type == "pgsql") ''
+        in (optionalString (cfg.database.type == "pgsql") ''
           exists=$(${callSql "select count(*) > 0 from pg_tables where tableowner = user"} \
           | tail -n+3 | head -n-2 | sed -e 's/[ \n\t]*//')
 
@@ -639,7 +641,7 @@ let
         serviceConfig = {
           User = "${cfg.user}";
           Group = "tt_rss";
-          ExecStart = "${pkgs.php}/bin/php ${cfg.root}/update.php --daemon --quiet";
+          ExecStart = "${pkgs.php}/bin/php ${cfg.root}/www/update.php --daemon --quiet";
           Restart = "on-failure";
           RestartSec = "60";
           SyslogIdentifier = "tt-rss";
-- 
cgit 1.4.1