frappe/frappe/middlewares.py

# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
# MIT License. See license.txt

from __future__ import unicode_literals

import frappe
import os

from werkzeug.wsgi import SharedDataMiddleware
from frappe.utils import get_site_name, get_site_path, get_site_base_path, get_path, cstr

class StaticDataMiddleware(SharedDataMiddleware):
	def __call__(self, environ, start_response):
		self.environ = environ
		return super(StaticDataMiddleware, self).__call__(environ, start_response)

	def get_directory_loader(self, directory):
		def loader(path):
			site = get_site_name(frappe.app._site or self.environ.get('HTTP_HOST'))
			path = os.path.join(directory, site, 'public', 'files', cstr(path))
			if os.path.isfile(path):
				return os.path.basename(path), self._opener(path)
			else:
				return None, None

		return loader