Fix config placeholder replacement with special chars

scripts/install

@@ -28,14 +28,34 @@ mkdir -p "$install_dir" "$data_dir/data" "$data_dir/media/originals" "$data_dir/
 cp -a "$YNH_APP_BASEDIR/backend" "$YNH_APP_BASEDIR/web" "$YNH_APP_BASEDIR/doc" "$install_dir"/
 
 cp "$YNH_APP_BASEDIR/conf/config.json" "$config_dir/config.json"
-sed -i \
-    -e "s#__PORT__#$port#g" \
-    -e "s#__PATH__#$path#g" \
-    -e "s#__DATA_DIR__#$data_dir#g" \
-    -e "s#__INSTALL_DIR__#$install_dir#g" \
-    -e "s#__ADMIN_USER__#$admin_user#g" \
-    -e "s#__ADMIN_PASSWORD__#$admin_password#g" \
-    "$config_dir/config.json"
+CONFIG_FILE="$config_dir/config.json" \
+APP_PORT="$port" \
+APP_PATH="$path" \
+APP_DATA_DIR="$data_dir" \
+APP_INSTALL_DIR="$install_dir" \
+APP_ADMIN_USER="$admin_user" \
+APP_ADMIN_PASSWORD="$admin_password" \
+python3 - <<'PYCONF'
+import os
+from pathlib import Path
+
+config_file = Path(os.environ["CONFIG_FILE"])
+content = config_file.read_text()
+
+replacements = {
+    "__PORT__": os.environ["APP_PORT"],
+    "__PATH__": os.environ["APP_PATH"],
+    "__DATA_DIR__": os.environ["APP_DATA_DIR"],
+    "__INSTALL_DIR__": os.environ["APP_INSTALL_DIR"],
+    "__ADMIN_USER__": os.environ["APP_ADMIN_USER"],
+    "__ADMIN_PASSWORD__": os.environ["APP_ADMIN_PASSWORD"],
+}
+
+for key, value in replacements.items():
+    content = content.replace(key, value)
+
+config_file.write_text(content)
+PYCONF
 
 cp "$YNH_APP_BASEDIR/conf/albumik.service" "$service_file"
 sed -i \