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# Copyright (C) 2015 Ipsilon Contributors see COPYING for license
import cherrypy
from ipsilon.util.log import Log
from ipsilon.util.user import UserSession
from urllib import unquote
try:
from urlparse import urlparse
except ImportError:
# pylint: disable=no-name-in-module, import-error
from urllib.parse import urlparse
class Endpoint(Log):
def __init__(self, site):
self._site = site
self.basepath = cherrypy.config.get('base.mount', "")
self.user = None
self.default_headers = {
'Cache-Control': 'no-cache, no-store, must-revalidate, private',
'Pragma': 'no-cache',
}
self.auth_protect = False
def get_url(self):
return cherrypy.url(relative=False)
def instance_base_url(self):
url = self.get_url()
s = urlparse(unquote(url))
return '%s://%s%s' % (s.scheme, s.netloc, self.basepath)
def _check_referer(self, referer, url):
r = urlparse(unquote(referer))
u = urlparse(unquote(url))
if r.scheme != u.scheme:
return False
if r.netloc != u.netloc:
return False
if r.path.startswith(self.basepath):
return True
return False
def __call__(self, *args, **kwargs):
# pylint: disable=star-args
cherrypy.response.headers.update(self.default_headers)
self.user = UserSession().get_user()
if self.auth_protect and self.user.is_anonymous:
raise cherrypy.HTTPError(401)
self._debug("method: %s" % cherrypy.request.method)
op = getattr(self, cherrypy.request.method, None)
if callable(op):
# Basic CSRF protection
if cherrypy.request.method != 'GET':
url = self.get_url()
if 'referer' not in cherrypy.request.headers:
self._debug("Missing referer in %s request to %s"
% (cherrypy.request.method, url))
raise cherrypy.HTTPError(403)
referer = cherrypy.request.headers['referer']
if not self._check_referer(referer, url):
self._debug("Wrong referer %s in request to %s"
% (referer, url))
raise cherrypy.HTTPError(403)
return op(*args, **kwargs)
else:
op = getattr(self, 'root', None)
if callable(op):
return op(*args, **kwargs)
return self.default(*args, **kwargs)
def default(self, *args, **kwargs):
raise cherrypy.NotFound()
def add_subtree(self, name, page):
self.__dict__[name] = page
def del_subtree(self, name):
del self.__dict__[name]
exposed = True
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