Add External form auth plugin

[cascardo/ipsilon.git] / ipsilon / util / page.py

diff --git a/ipsilon/util/page.py b/ipsilon/util/page.py
index 1968009..aad91fc 100755 (executable)
--- a/ipsilon/util/page.py
+++ b/ipsilon/util/page.py
@@ -18,6 +18,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 from ipsilon.util.user import UserSession
+from urllib import unquote
 import cherrypy
 
 
@@ -32,10 +33,6 @@ def admin_protect(fn):
     return check
 
 
-def protect():
-    UserSession().remote_login()
-
-
 class Page(object):
     def __init__(self, site, form=False):
         if 'template_env' not in site:
@@ -43,7 +40,14 @@ class Page(object):
         self._site = site
         self.basepath = cherrypy.config.get('base.mount', "")
         self.user = None
-        self.form = form
+        self._is_form_page = form
+
+    def _compare_urls(self, url1, url2):
+        u1 = unquote(url1)
+        u2 = unquote(url2)
+        if u1 == u2:
+            return True
+        return False
 
     def __call__(self, *args, **kwargs):
         # pylint: disable=star-args
@@ -54,18 +58,22 @@ class Page(object):
             if callable(op) and getattr(self, args[0]+'.exposed', None):
                 return op(*args[1:], **kwargs)
         else:
-            if self.form:
+            if self._is_form_page:
                 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 = cherrypy.url(relative=False)
                         if 'referer' not in cherrypy.request.headers:
-                            return cherrypy.HTTPError(403)
+                            self._debug("Missing referer in %s request to %s"
+                                        % (cherrypy.request.method, url))
+                            raise cherrypy.HTTPError(403)
                         referer = cherrypy.request.headers['referer']
-                        url = cherrypy.url(relative=False)
-                        if referer != url:
-                            return cherrypy.HTTPError(403)
+                        if not self._compare_urls(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)