services.wger: enables AUTH_PROXY_HEADER

Prevent someone from impersinating users, by setting the header manually

machines/gerd/services/authelia/authelia-nginx.nix

@@ -51,10 +51,10 @@ let
     auth_request_set $email $upstream_http_remote_email;
     
     ## Inject the metadata response headers from the variables into the request made to the backend.
-    proxy_set_header Remote-User $user;
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.username} $user;
-    proxy_set_header Remote-Groups $groups;
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.groups} $groups;
-    proxy_set_header Remote-Email $email;
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.email} $email;
-    proxy_set_header Remote-Name $name;
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.name} $name;
     
     ## Configure the redirection when the authz failure occurs. Lines starting with 'Modern Method' and 'Legacy Method'
     ## should be commented / uncommented as pairs. The modern method uses the session cookies configuration's authelia_url
@@ -75,12 +75,27 @@ let
     ## URL parameter set to $target_url. This requires users update 'auth.example.com/' with their external authelia URL.
     error_page 401 =302 https://${config.mine.shared.settings.authelia.domain}/?rd=$target_url;
   '';
+
+  nginxUnsetAuthHeaders = ''
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.username} "";
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.groups} "";
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.email} "";
+    proxy_set_header ${config.mine.shared.lib.authelia.protectedHeaders.name} "";
+  '';
 in {
   mine.shared.lib.authelia.mkProtectedWebsite = websiteConfig: lib.recursiveUpdate websiteConfig {
-    extraConfig = (lib.attrByPath [ "extraConfig" ] "" websiteConfig) + "\n" + "include ${autheliaLocation};";
+    extraConfig = (websiteConfig.extraConfig or "") + "\n" + "include ${autheliaLocation};";
+    locations = lib.mapAttrs (n: v: v // { extraConfig = nginxUnsetAuthHeaders + (v.extraConfig or ""); }) (websiteConfig.locations or {});
   };
 
   mine.shared.lib.authelia.mkProtectedLocation = vhostLocationConfig: lib.recursiveUpdate vhostLocationConfig {
     extraConfig = (lib.attrByPath [ "extraConfig" ] "" vhostLocationConfig) + "\n" + "include ${autheliaRequest};";
   };
+
+  mine.shared.lib.authelia.protectedHeaders = {
+    username = "Remote-User";
+    groups = "Remote-Groups"; # comma separated string of groups
+    email = "Remote-Email";
+    name = "Remote-Name";
+  };
 }

machines/gerd/services/member-website/app.py

@@ -8,6 +8,7 @@ import argparse
 import logging
 import json
 import sys
+import os
 
 logging.basicConfig()
 logger = logging.getLogger(__name__)
@@ -94,10 +95,10 @@ def extract_secrets() -> dict[str, str]:
 def index():
     # extract user information
     user_info = {
-        "username": request.headers.get("Remote-User"),
+        "username": request.headers.get(os.environ.get("AUTH_PROXY_USERNAME")),
-        "name": request.headers.get("Remote-Name"),
+        "name": request.headers.get(os.environ.get("AUTH_PROXY_NAME")),
-        "groups": request.headers.get("Remote-Groups"),
+        "groups": request.headers.get(os.environ.get("AUTH_PROXY_GROUPS")),
-        "email": request.headers.get("Remote-Email"),
+        "email": request.headers.get(os.environ.get("AUTH_PROXY_EMAIL")),
     }
     tmpl_firstpass = render_template_string(
         tmpl_index,

machines/gerd/services/member-website/default.nix

@@ -9,6 +9,14 @@ in {
     description = "members area website";
     wantedBy = [ "multi-user.target" ];
     after = [ "networking.target" ];
+
+    environment = {
+      AUTH_PROXY_USERNAME = config.mine.shared.lib.authelia.protectedHeaders.username;
+      AUTH_PROXY_GROUPS = config.mine.shared.lib.authelia.protectedHeaders.groups;
+      AUTH_PROXY_EMAIL = config.mine.shared.lib.authelia.protectedHeaders.email;
+      AUTH_PROXY_NAME = config.mine.shared.lib.authelia.protectedHeaders.name;
+    };
+
     serviceConfig = {
       ExecStart = let
         pythonEnv = pkgs.python3.withPackages(ps: with ps; [ flask ]);

machines/gerd/services/miniflux.nix

@@ -20,7 +20,7 @@ in {
 
       # use auth proxy
       # TODO: This should be configureable
-      AUTH_PROXY_HEADER = "Remote-User";
+      AUTH_PROXY_HEADER = config.mine.shared.lib.authelia.protectedHeaders.username;
       AUTH_PROXY_USER_CREATION = "true";
     };
   };

machines/gerd/services/wger/default.nix

@@ -19,6 +19,11 @@ in {
     # wger specific settings
     wgerSettings = {
       EMAIL_FROM = "wger Workout Manager <wger@${svc_domain}>";
+
+      # use authelia for authentication (disable guest users + regisration)
+      AUTH_PROXY_HEADER = config.mine.shared.lib.authelia.protectedHeaders.username;
+      ALLOW_GUEST_USERS = false;
+      ALLOW_REGISTRATION = false;
     };
 
     # django specific settings

machines/gerd/services/wger/wgerpkg/default.nix

@@ -4,20 +4,21 @@
   fetchFromGitHub,
   callPackage,
   writeText,
+  fetchpatch,
 }:
 
 let
   frontend = callPackage ./frontend.nix {};
 in python3.pkgs.buildPythonPackage rec {
   pname = "wger";
-  version = "unstable-2024-12-01";
+  version = "unstable-2024-12-30";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "wger-project";
     repo = "wger";
-    rev = "bfca74e88f6c9ff6e917e0ba0e8e9c782ae0047b";
+    rev = "30871d621fa6e732f07bd33d4112b99539974e5f";
-    hash = "sha256-VuVKgkNp6Omiag72lOn6p51kC/jvApX/kRAPpK95U7w=";
+    hash = "sha256-WcycWbzKug8vUfNnUDhvgmj1kUCpT1P1YJBfdIC1H9g=";
   };
 
   build-system = [
@@ -26,9 +27,14 @@ in python3.pkgs.buildPythonPackage rec {
 
   patches = [
     ./patches/pyproject.patch
-    ./patches/tasks.patch
     ./patches/manage.patch
     ./patches/exercises-no-gifs.patch
+
+    # adds support for proxy auth header
+    (fetchpatch {
+      url = "https://github.com/wger-project/wger/pull/1859/commits/d46d469fa802890d7162b07c098802810fc8417c.patch";
+      sha256 = "sha256-D+3FmiSokJe9iSJz7ZbRzS+kuP3yV64XhKnQ4Oh5x8c=";
+    })
   ];
 
   # dependencies = with python3.pkgs; [
@@ -86,6 +92,8 @@ in python3.pkgs.buildPythonPackage rec {
   # fixup compressed files
   postBuild = let
     staticSettings = writeText "static_settings.py" ''
+      import os
+
       DEBUG = False
       STATIC_ROOT = os.environ["static"]
       COMPRESS_OFFLINE = True
@@ -97,7 +105,7 @@ in python3.pkgs.buildPythonPackage rec {
     # cp -a ${frontend}/static/yarn $out/${python3.sitePackages}/wger/core/static
     cp -a ${frontend}/static/yarn wger/core/static
 
-    python3 -m wger.tasks create-settings -s $PWD/tmp_settings.py
+    python3 -m wger create-settings -s $PWD/tmp_settings.py
     cat ${staticSettings} >> $PWD/tmp_settings.py
     mkdir tmpstatic
     pushd tmpstatic

machines/gerd/services/wger/wgerpkg/module.nix

@@ -138,15 +138,15 @@ in
   config = mkIf cfg.enable {
     services.wger.wgerSettings = {
       EMAIL_FROM = mkDefault "wger Workout Manager <wger@example.com>";
-      ALLOW_REGISTRATION = true;
+      ALLOW_REGISTRATION = mkDefault true;
-      ALLOW_GUEST_USERS = true;
+      ALLOW_GUEST_USERS = mkDefault true;
-      ALLOW_UPLOAD_VIDEOS = false;
+      ALLOW_UPLOAD_VIDEOS = mkDefault false;
-      MIN_ACCOUNT_AGE_TO_TRUST = 1;
+      MIN_ACCOUNT_AGE_TO_TRUST = mkDefault 1;
-      EXERCISE_CACHE_TTL = 3600; # 1 hour
+      EXERCISE_CACHE_TTL = mkDefault 3600; # 1 hour
     };
     
     services.wger.djangoSettings = rec {
-      DEBUG = false;
+      DEBUG = mkDefault false;
 
       # configure database as postgresql or sqlite
       DATABASES.default = if cfg.configurePostgres then {

machines/gerd/services/wger/wgerpkg/patches/tasks.patch

@@ -1,35 +0,0 @@
-diff --git a/wger/tasks.py b/wger/tasks.py
-index b1b4b7c65..50bf95b7c 100644
---- a/wger/tasks.py
-+++ b/wger/tasks.py
-@@ -31,7 +31,7 @@ from django.utils.crypto import get_random_string
-
- # Third Party
- import requests
--from invoke import task
-+from invoke import task, Program, Collection
- from tqdm import tqdm
-
-
-@@ -358,3 +358,20 @@ def database_exists():
-         sys.exit(0)
-     else:
-         return True
-+
-+def main():
-+    ns = Collection(
-+        start,
-+        bootstrap,
-+        create_settings,
-+        create_or_reset_admin,
-+        migrate_db,
-+        load_fixtures,
-+        load_online_fixtures,
-+    )
-+    program = Program(namespace=ns)
-+    program.run()
-+
-+
-+if __name__ == "__main__":
-+    main()
-