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Installing GPL Licence and flush memcache every update.

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CHANGES

-June 2009
-=========
-
-* Add support for DATABASE_SUPPORTS_TRANSACTIONS parameter to enable tests
-  to succeed in newer Django revisions (> 10925). Patch contributed by
-  Andi Albrecht. Thanks :)
-
-May 2009
-========
-
-* Improved performance of repr() for BaseModel derived classes.
-* Added support for setting Reply-To when sending email.
-* The Django auth app is now disabled in the default settings.py. If you want
-  to use it in your application you will need to enable it (and dependencies
-  such as sessions) explicitly.
-
-April 2009
-==========
-
-* Modify the default settings.py so that SMTP email is not send by default.
-
-March 2009
-==========
-
-* Added a basic console (./managed.py console) that uses the remote_api to
-  allow command execution against the live application on appspot.com
-* Fixed compatibility issues with new Django releases.
-
-February 2009
-=============
-
-* Fixed compatibility with App Engine Python SDK 1.1.9 file restrictions.
-
-January 2009
-============
-
-* Make the use of django.contrib.auth completely optional.
-* Added initial support for placing the helper itself (appengine_django
-  directory) into a zipfile named appengine_django.zip in the top level
-  project directory. Note. That manage.py commands will not work when using
-  a zipped appengine_django.
-
-September 2008
-==============
-
-* Added support for loading Django from a file named django.zip in the top
-  level project directory.
-* Improved session backend contributed by Bernd Dorn of Lovely Systems.
-
-Tue 19 August 2008
-==================
-
-Support for versions of Django less than 1.0beta_1 has been removed. If you
-wish to continue using Django 0.96 you will need to stay with revision 53 of
-the Google App Engine Helper for Django.
-
-Wed 6 August 2008
-=================
-
-This is the last version of the Google App Engine Helper for Django that will
-support Django 0.96. Future development of the helper will be targetted for the
-upcoming 1.0 release of Django.
-
-* Improved SDK detection on Windows by looking at both the PATH variable that
-  may be set by the installer and using the win32api module (if available) to
-  look for the SDK in the default Program Files location.
-* Replaced the startapp command with a version that installs an App Engine
-  Compatible application skeleton. Patch contributed by Andi Albrecht.
-* Changed the default runserver port to 8000 to match standard Django
-  behaviour. Path contributed by Waldemar Kornewald.
-* Email server settings from the Django settings file are provided to the App
-  Engine Mail API. Patch contributed by Waldemar Kornewald.
-* Added support for the Django memcache cache backend. Patch contributed by
-  Jonca Rafal.
-* Added support for the Django session middle with db and cache backends for
-  Django 1.0alpha only. Patches contributed by Jonca Rafal and Waldemar
-  Kornewald.
-* Moved the Django compatible login_required decorator to the standard Django
-  location. Patch contributed by Andi Albrecht.
-* Replaced the Django ModelForm class with the App Engine ModelForm class.
-* Added a repr implementation for the BaseModel class.
-* Many minor improvements to increase robustness and avoid errors if portions
-  of Django are not present.
-
-Tue 20 May 2008
-===============
-
-* Added an App Engine compatible implementation of the Django authentication
-  framework. This only works for Users at the present time, Groups and
-  Permissions are not yet supported.
-
-  The patch for this functionality was supplied by Andi Albrecht.
-
-* Added equality and inequality comparision functions to BaseModel.
-
-  The patch for this functionality was supplied by Andi Albrecht.
-
-
-Fri 16 May 2008
-===============
-
-* Changed location of local SDK directory to '.google_appengine' instead of
-  'google_appengine' so that it is automatically ignored without neding to
-  modify skip_files in app.yaml. 'google_appengine' will continue to work for
-  the next few releases.
-
-* Major improvements to SDK location detection code. When running on Windows or
-  Mac OS with the SDK installed via the Google supplied installers the SDK will
-  be automatically detected and added to Python's path.
-
-* The helper now detects, warns and removes Context Processors that are not
-  compatible with Google App Engine.
-
-* The Django mail API is now monkey patched to allow email to be sent via the
-  App Engine Mail API using the standard Django mail functions. This code does
-  not yet support sending multipart / HTML emails.
-
-  The patch for this functionality was supplied by Ryan Gates.
-
-* Added 'update', 'rollback' and 'vacuum_indexes' from appcfg.py to the list of
-  commands available via manage.py when using Django 0.97. You will still have
-  to uses appcfg.py directly if you are using Django 0.96.
-
-* Improved the deserialization routines to deserialize parent references
-  without needing to instantiate the parent instance. This allows instances
-  with non-existant parents to be succesfully loaded.

COPYING

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Makefile

-r := $(shell svnversion -nc .. | sed -e 's/^[^:]*://;s/[A-Za-z]//')
-ts := $(shell date +%s)
-tmpdir := $(shell mktemp -ud)
-pwd := $(shell pwd)
-
-release:
-	@rm -rf $(tmpdir)
-	@mkdir -p $(tmpdir)
-	@svn export . $(tmpdir)/appengine_helper_for_django
-	@echo "VERSION=$(r)\nTIMESTAMP=$(ts)\n" > \
-		$(tmpdir)/appengine_helper_for_django/VERSION
-	@rm $(tmpdir)/appengine_helper_for_django/Makefile
-	@cd $(tmpdir); find . | \
-		zip $(pwd)/appengine_helper_for_django-r$(r).zip -@ >/dev/null
-	@rm -rf $(tmpdir)
-GOOGLE APP ENGINE HELPER FOR DJANGO
-===================================
-
-This package provides a helper that eases the process of developing a Django
-project to run on the Google App Engine. The helper is structured as a Django
-application that should be installed inside your project. See below for
-detailed usage instructions.
-
-The helper provides the following functionality:
-
-  * The ability to use most manage.py commands
-    - Additional manage.py commands (update, rollback, and vacuum_indexes) that
-      operate identically to the appcfg.py equivalents.
-  * A BaseModel class that appears the same as the standard Django Model class.
-  * The ability to serialize and deserialize model instances to JSON, YAML and
-    XML.
-  * Access to Django's test framework with a test datastore and support for
-    fixtures.
-  * The ability to send email via the App Engine mail API using the standard
-    Django mail functions.
-  * An App Engine compatible implementation of the Django authentication
-    framework. Only users are supported at this time. Group and Permission
-    support is not implemented.
-  * Support for the Django memcache cache backend module.
-  * Support for the db and cache session backed modules.
-
-The helper is provided in the context of a blank Django project, very
-similar to what would be provided by the django-admin.py startproject command.
-This project contains minor customisations to manage.py and settings.py that
-demonstrate how to integrate the helper with a Django project.
-
-To use the helper you have two choices:
-
-1) Copy the entire project provided with the helper and modify it to bootstrap
-   your project.
-2) Copy the appengine_django application into your existing project and modify
-   the settings appropriately.
-
-Instructions for both cases are provided below.
-
-
-Obtaining the helper
---------------------
-
-You can download the latest released version of the helper from the Google Code
-project at: http://code.google.com/p/google-app-engine-django
-
-The helper will be unzipped into a directory named appengine_helper_for_django.
-
-Alternatively you can check out the latest version of the helper directly from
-the SVN repository with the following command:
-
-svn co http://google-app-engine-django.googlecode.com/svn/trunk/ \
-  appengine_helper_for_django
-
-
-Required Software
------------------
-
-You will need the Google App Engine SDK and its dependencies installed on your
-computer. Additionally if you are developing on a Windows machine you will need
-to install the Python for Windows extensions from
-http://sourceforge.net/projects/pywin32/
-
-This version of the helper requires Django 1.0beta_1 or greater. If you would
-prefer to use the stable version of Django (0.96) that is bundled with the App
-Engine SDK then you can download revision 53 or earlier of the helper from the
-address in the previous section. You must place Django in a directory named
-django/ instead your project, or provide a django.zip file containing the
-zipped Django source. See below for details.
-
-
-Using the helper to bootstrap a new project
--------------------------------------------
-
-1) Copy the appengine_helper_for_django directory to a new location named after
-   your project
-
-2) Edit the application line in app.yaml to match the name you registered your
-   application under in the Admin Console.
-
-3) If you have installed the Google App Engine SDK using the Windows or MacOS
-   installers provided by Google you may skip this step.
-
-   Create a symlink from the location of the extracted SDK zipfile to the
-   '.google_appengine' directory inside your project. E.g:
-
-   ln -s /home/me/google_appengine /home/me/myproject/.google_appengine
-
-   If you like to stay up to date see the 'SDK via SVN' section below for an
-   alternative setup.
-
-4) Download and copy Django into the django/ subdirectory of your project.
-   Alternatively you can create a zipfile of the Django code and place it at
-   django.zip inside your project. E.g.
-
-   /home/me/myproject/django          (directory method)
-   /home/me/myproject/django.zip      (zipfile method)
-
-5) Run manage.py to start a new application for your code:
-
-   python manage.py startapp myapplication
-
-6) Add your code!
-
-
-Installing the helper into an existing project
-----------------------------------------------
-
-1) Copy the appengine_django application from within the helper into your
-   project.
-
-2) Copy app.yaml and main.py from within the helper into your project.
-
-3) Edit the application line in app.yaml to match the name you registered your
-   application under in the Admin Console.
-
-4) Add the following two lines to the top of manage.py::
-
-       from appengine_django import InstallAppengineHelperForDjango
-       InstallAppengineHelperForDjango()
-
-5) If you have installed the Google App Engine SDK using the Windows or MacOS
-   installers provided by Google you may skip this step.
-
-   Create a symlink from the location of the extracted SDK zipfile to the
-   '.google_appengine' directory inside your project. E.g:
-
-   ln -s /home/me/google_appengine /home/me/myproject/.google_appengine
-
-   If you like to stay up to date see the 'SDK via SVN' section below for an
-   alternative setup.
-
-6) Ensure Django is available within your project as described in Step 4 of the
-   instructions for bootstrapping new porjects above.
-
-7) Remove incompatible settings from your settings.py file.
-
-   The helper can warn you about some settings that it knows to be
-   incompatible, you can see these warnings by running::
-
-       python manage.py diffsettings
-
-   For the rest you'll just have to experiment by trial and error. The main
-   problem here is usually loading middleware that attempts to import modules
-   that are banned by the appserver.
-
-8) Port your models and code over to the appengine_django.model.BaseModel
-   class.
-
-
-SDK via SVN
------------
-
-If you are using SVN to manage your project and you would like to keep up to
-date with the latest SDK without having to download and install it regularly
-you can use an svn:external to include the SDK in our project.
-
-Once you have commited the basic structure of your project to your repository
-change to the base directory and add the following line to the svn:externals
-property using svn propset or svn propedit.
-
-.google_appengine http://googleappengine.googlecode.com/svn/trunk/python/
-
-Then run svn update and a copy of the SDK will be installed into the
-'.google_appengine' subdirectory. This copy of the SDK will be updated with the
-latest changes from the Google Code repository every time you run svn update.
-
-
-Contributing to the helper
---------------------------
-
-We would be happy to consider any additions or bugfixes that you would like to
-add to the helper. Please add them as a patch, in unified diff format to the
-Issue Tracker at: http://code.google.com/p/google-app-engine-django/issues/list
-
-Before we can accept your code you will need to have signed the Google
-Contributer License. You can find this at:
-
-http://code.google.com/legal/individual-cla-v1.0.html
-or
-http://code.google.com/legal/corporate-cla-v1.0.html
-
-If you are an Individual contributor you will be able to electronically sign
-and submit the form at the URL above. Please ensure that you use the same email
-address to submit your patch as you used to sign the CLA.
-
-
-Reporting Bugs and Requesting Features
---------------------------------------
-
-Please see the KNOWN_ISSUES file and the existing list of issues at
-http://code.google.com/p/google-app-engine-django/issues to see if your problem
-has already been reported.
-
-If you find a bug or would like to request a feature you may do so at the
-Google Code issue tracker for this project:
-
-http://code.google.com/p/google-app-engine-django/issues/entry

context/context_processors.py

+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
+
+
 # this is a context processor for template
 from pages.models import Page
 from google.appengine.api import memcache
Add a comment to this file

context/context_processors.pyc

Binary file modified.

database structure.txt

-Posts
-- id
-- title
-- created
-- modified
-- content
-- category_id
-
-Categories
-- id
-- name
-- created
-- modified
-
-

gaesessions/__init__.py

-"""A fast, lightweight, and secure session WSGI middleware for use with GAE."""
-from Cookie import CookieError, SimpleCookie
-from base64 import b64decode, b64encode
-import datetime
-import hashlib
-import hmac
-import logging
-import pickle
-import os
-import time
-
-from google.appengine.api import memcache
-from google.appengine.ext import db
-
-# Configurable cookie options
-COOKIE_NAME_PREFIX = "DgU"  # identifies a cookie as being one used by gae-sessions (so you can set cookies too)
-COOKIE_PATH = "/"
-DEFAULT_COOKIE_ONLY_THRESH = 10240  # 10KB: GAE only allows ~16000B in HTTP header - leave ~6KB for other info
-DEFAULT_LIFETIME = datetime.timedelta(days=7)
-
-# constants
-SID_LEN = 43  # timestamp (10 chars) + underscore + md5 (32 hex chars)
-SIG_LEN = 44  # base 64 encoded HMAC-SHA256
-MAX_COOKIE_LEN = 4096
-EXPIRE_COOKIE_FMT = ' %s=; expires=Wed, 01-Jan-1970 00:00:00 GMT; Path=' + COOKIE_PATH
-COOKIE_FMT = ' ' + COOKIE_NAME_PREFIX + '%02d="%s"; expires=%s; Path=' + COOKIE_PATH + '; HttpOnly'
-COOKIE_FMT_SECURE = COOKIE_FMT + '; Secure'
-COOKIE_DATE_FMT = '%a, %d-%b-%Y %H:%M:%S GMT'
-COOKIE_OVERHEAD = len(COOKIE_FMT % (0, '', '')) + 29 + 150  # 29=date len, 150=safety margin (e.g., in case browser uses 4000 instead of 4096)
-MAX_DATA_PER_COOKIE = MAX_COOKIE_LEN - COOKIE_OVERHEAD
-
-_current_session = None
-def get_current_session():
-    """Returns the session associated with the current request."""
-    return _current_session
-
-def is_gaesessions_key(k):
-    return k.startswith(COOKIE_NAME_PREFIX)
-
-class SessionModel(db.Model):
-    """Contains session data.  key_name is the session ID and pdump contains a
-    pickled dictionary which maps session variables to their values."""
-    pdump = db.BlobProperty()
-
-class Session(object):
-    """Manages loading, reading/writing key-value pairs, and saving of a session.
-
-    ``sid`` - if set, then the session for that sid (if any) is loaded. Otherwise,
-    sid will be loaded from the HTTP_COOKIE (if any).
-    """
-    DIRTY_BUT_DONT_PERSIST_TO_DB = 1
-
-    def __init__(self, sid=None, lifetime=DEFAULT_LIFETIME, no_datastore=False,
-                 cookie_only_threshold=DEFAULT_COOKIE_ONLY_THRESH, cookie_key=None):
-        self.sid = None
-        self.cookie_keys = []
-        self.cookie_data = None
-        self.data = {}
-        self.dirty = False  # has the session been changed?
-
-        self.lifetime = lifetime
-        self.no_datastore = no_datastore
-        self.cookie_only_thresh = cookie_only_threshold
-        self.base_key = cookie_key
-
-        if sid:
-            self.__set_sid(sid, False)
-            self.data = None
-        else:
-            self.__read_cookie()
-
-    @staticmethod
-    def __compute_hmac(base_key, sid, text):
-        """Computes the signature for text given base_key and sid."""
-        key = base_key + sid
-        return b64encode(hmac.new(key, text, hashlib.sha256).digest())
-
-    def __read_cookie(self):
-        """Reads the HTTP Cookie and loads the sid and data from it (if any)."""
-        try:
-            # check the cookie to see if a session has been started
-            cookie = SimpleCookie(os.environ['HTTP_COOKIE'])
-            self.cookie_keys = filter(is_gaesessions_key, cookie.keys())
-            if not self.cookie_keys:
-                return  # no session yet
-            self.cookie_keys.sort()
-            data = ''.join(cookie[k].value for k in self.cookie_keys)
-            i = SIG_LEN + SID_LEN
-            sig, sid, b64pdump = data[:SIG_LEN], data[SIG_LEN:i], data[i:]
-            pdump = b64decode(b64pdump)
-            actual_sig = Session.__compute_hmac(self.base_key, sid, pdump)
-            if sig == actual_sig:
-                self.__set_sid(sid, False)
-                # check for expiration and terminate the session if it has expired
-                if time.time() > self.get_expiration():
-                    return self.terminate()
-
-                if pdump:
-                    self.data = self.__decode_data(pdump)
-                else:
-                    self.data = None  # data is in memcache/db: load it on-demand
-            else:
-                logging.warn('cookie with invalid sig received from %s: %s' % (os.environ.get('REMOTE_ADDR'), b64pdump))
-        except (CookieError, KeyError, IndexError, TypeError):
-            # there is no cookie (i.e., no session) or the cookie is invalid
-            self.terminate(False)
-
-    def make_cookie_headers(self):
-        """Returns a list of cookie headers to send (if any)."""
-        # expire all cookies if the session has ended
-        if not self.sid:
-            return [EXPIRE_COOKIE_FMT % k for k in self.cookie_keys]
-
-        if self.cookie_data is None:
-            return []  # no cookie headers need to be sent
-
-        # build the cookie header(s): includes sig, sid, and cookie_data
-        if self.is_ssl_only():
-            m = MAX_DATA_PER_COOKIE - 8
-            fmt = COOKIE_FMT_SECURE
-        else:
-            m = MAX_DATA_PER_COOKIE
-            fmt = COOKIE_FMT
-        sig = Session.__compute_hmac(self.base_key, self.sid, self.cookie_data)
-        cv = sig + self.sid + b64encode(self.cookie_data)
-        num_cookies = 1 + (len(cv) - 1) / m
-        ed = datetime.datetime.fromtimestamp(self.get_expiration()).strftime(COOKIE_DATE_FMT)
-        cookies = [fmt % (i, cv[i*m:i*m+m], ed) for i in xrange(num_cookies)]
-
-        # expire old cookies which aren't needed anymore
-        old_cookies = xrange(num_cookies, len(self.cookie_keys))
-        key = COOKIE_NAME_PREFIX + '%02d'
-        cookies_to_ax = [EXPIRE_COOKIE_FMT % (key % i) for i in old_cookies]
-        return cookies + cookies_to_ax
-
-    def is_active(self):
-        """Returns True if this session is active (i.e., it has been assigned a
-        session ID and will be or has been persisted)."""
-        return self.sid is not None
-
-    def is_ssl_only(self):
-        """Returns True if cookies set by this session will include the "Secure"
-        attribute so that the client will only send them over a secure channel
-        like SSL)."""
-        return self.sid is not None and self.sid[-33]=='S'
-
-    def ensure_data_loaded(self):
-        """Fetch the session data if it hasn't been retrieved it yet."""
-        if self.data is None and self.sid:
-            self.__retrieve_data()
-
-    def get_expiration(self):
-        """Returns the timestamp at which this session will expire."""
-        try:
-            return int(self.sid[:-33])
-        except:
-            return 0
-
-    def __make_sid(self, expire_ts=None, ssl_only=False):
-        """Returns a new session ID."""
-        # make a random ID (random.randrange() is 10x faster but less secure?)
-        if not expire_ts:
-            expire_dt = datetime.datetime.now() + self.lifetime
-            expire_ts = int(time.mktime((expire_dt).timetuple()))
-        else:
-            expire_ts = int(expire_ts)
-        if ssl_only:
-            sep = 'S'
-        else:
-            sep = '_'
-        return str(expire_ts) + sep + hashlib.md5(os.urandom(16)).hexdigest()
-
-    @staticmethod
-    def __encode_data(d):
-        """Returns a "pickled+" encoding of d.  d values of type db.Model are
-        protobuf encoded before pickling to minimize CPU usage & data size."""
-        # separate protobufs so we'll know how to decode (they are just strings)
-        eP = {} # for models encoded as protobufs
-        eO = {} # for everything else
-        for k,v in d.iteritems():
-            if isinstance(v, db.Model):
-                eP[k] = db.model_to_protobuf(v)
-            else:
-                eO[k] = v
-        return pickle.dumps((eP,eO), 2)
-
-    @staticmethod
-    def __decode_data(pdump):
-        """Returns a data dictionary after decoding it from "pickled+" form."""
-        eP, eO = pickle.loads(pdump)
-        for k,v in eP.iteritems():
-            eO[k] = db.model_from_protobuf(v)
-        return eO
-
-    def regenerate_id(self, expiration_ts=None):
-        """Assigns the session a new session ID (data carries over).  This
-        should be called whenever a user authenticates to prevent session
-        fixation attacks.
-
-        ``expiration_ts`` - The UNIX timestamp the session will expire at. If
-        omitted, the session expiration time will not be changed.
-        """
-        if self.sid:
-            self.ensure_data_loaded()  # ensure we have the data before we delete it
-            if expiration_ts is None:
-                expiration_ts = self.get_expiration()
-            self.__set_sid(self.__make_sid(expiration_ts, self.is_ssl_only()))
-            self.dirty = True  # ensure the data is written to the new session
-
-    def start(self, expiration_ts=None, ssl_only=False):
-        """Starts a new session.  expiration specifies when it will expire.  If
-        expiration is not specified, then self.lifetime will used to
-        determine the expiration date.
-
-        Normally this method does not need to be called directly - a session is
-        automatically started when the first value is added to the session.
-
-        ``expiration_ts`` - The UNIX timestamp the session will expire at. If
-        omitted, the session will expire after the default ``lifetime`` has past
-        (as specified in ``SessionMiddleware``).
-
-        ``ssl_only`` - Whether to specify the "Secure" attribute on the cookie
-        so that the client will ONLY transfer the cookie over a secure channel.
-        """
-        self.dirty = True
-        self.data = {}
-        self.__set_sid(self.__make_sid(expiration_ts, ssl_only), True)
-
-    def terminate(self, clear_data=True):
-        """Deletes the session and its data, and expires the user's cookie."""
-        if clear_data:
-            self.__clear_data()
-        self.sid = None
-        self.data = {}
-        self.dirty = False
-        if self.cookie_keys:
-            self.cookie_data = ''  # trigger the cookies to expire
-        else:
-            self.cookie_data = None
-
-    def __set_sid(self, sid, make_cookie=True):
-        """Sets the session ID, deleting the old session if one existed.  The
-        session's data will remain intact (only the session ID changes)."""
-        if self.sid:
-            self.__clear_data()
-        self.sid = sid
-        self.db_key = db.Key.from_path(SessionModel.kind(), sid, namespace='')
-
-        # set the cookie if requested
-        if make_cookie:
-            self.cookie_data = ''  # trigger the cookie to be sent
-
-    def __clear_data(self):
-        """Deletes this session from memcache and the datastore."""
-        if self.sid:
-            memcache.delete(self.sid, namespace='') # not really needed; it'll go away on its own
-            try:
-                db.delete(self.db_key)
-            except:
-                pass # either it wasn't in the db (maybe cookie/memcache-only) or db is down => cron will expire it
-
-    def __retrieve_data(self):
-        """Sets the data associated with this session after retrieving it from
-        memcache or the datastore.  Assumes self.sid is set.  Checks for session
-        expiration after getting the data."""
-        pdump = memcache.get(self.sid, namespace='')
-        if pdump is None:
-            # memcache lost it, go to the datastore
-            if self.no_datastore:
-                logging.info("can't find session data in memcache for sid=%s (using memcache only sessions)" % self.sid)
-                self.terminate(False) # we lost it; just kill the session
-                return
-            session_model_instance = db.get(self.db_key)
-            if session_model_instance:
-                pdump = session_model_instance.pdump
-            else:
-                logging.error("can't find session data in the datastore for sid=%s" % self.sid)
-                self.terminate(False) # we lost it; just kill the session
-                return
-        self.data = self.__decode_data(pdump)
-
-    def save(self, persist_even_if_using_cookie=False):
-        """Saves the data associated with this session IF any changes have been
-        made (specifically, if any mutator methods like __setitem__ or the like
-        is called).
-
-        If the data is small enough it will be sent back to the user in a cookie
-        instead of using memcache and the datastore.  If `persist_even_if_using_cookie`
-        evaluates to True, memcache and the datastore will also be used.  If the
-        no_datastore option is set, then the datastore will never be used.
-
-        Normally this method does not need to be called directly - a session is
-        automatically saved at the end of the request if any changes were made.
-        """
-        if not self.sid:
-            return # no session is active
-        if not self.dirty:
-            return # nothing has changed
-        dirty = self.dirty
-        self.dirty = False  # saving, so it won't be dirty anymore
-
-        # do the pickling ourselves b/c we need it for the datastore anyway
-        pdump = self.__encode_data(self.data)
-
-        # persist via cookies if it is reasonably small
-        if len(pdump)*4/3 <= self.cookie_only_thresh: # 4/3 b/c base64 is ~33% bigger
-            self.cookie_data = pdump
-            if not persist_even_if_using_cookie:
-                return
-        elif self.cookie_keys:
-            # latest data will only be in the backend, so expire data cookies we set
-            self.cookie_data = ''
-
-        memcache.set(self.sid, pdump, namespace='')  # may fail if memcache is down
-
-        # persist the session to the datastore
-        if dirty is Session.DIRTY_BUT_DONT_PERSIST_TO_DB or self.no_datastore:
-            return
-        try:
-            SessionModel(key_name=self.sid, pdump=pdump).put()
-        except Exception, e:
-            logging.warning("unable to persist session to datastore for sid=%s (%s)" % (self.sid,e))
-
-    # Users may interact with the session through a dictionary-like interface.
-    def clear(self):
-        """Removes all data from the session (but does not terminate it)."""
-        if self.sid:
-            self.data = {}
-            self.dirty = True
-
-    def get(self, key, default=None):
-        """Retrieves a value from the session."""
-        self.ensure_data_loaded()
-        return self.data.get(key, default)
-
-    def has_key(self, key):
-        """Returns True if key is set."""
-        self.ensure_data_loaded()
-        return self.data.has_key(key)
-
-    def pop(self, key, default=None):
-        """Removes key and returns its value, or default if key is not present."""
-        self.ensure_data_loaded()
-        self.dirty = True
-        return self.data.pop(key, default)
-
-    def pop_quick(self, key, default=None):
-        """Removes key and returns its value, or default if key is not present.
-        The change will only be persisted to memcache until another change
-        necessitates a write to the datastore."""
-        self.ensure_data_loaded()
-        if self.dirty is False:
-            self.dirty = Session.DIRTY_BUT_DONT_PERSIST_TO_DB
-        return self.data.pop(key, default)
-
-    def set_quick(self, key, value):
-        """Set a value named key on this session.  The change will only be
-        persisted to memcache until another change necessitates a write to the
-        datastore.  This will start a session if one is not already active."""
-        dirty = self.dirty
-        self[key] = value
-        if dirty is False or dirty is Session.DIRTY_BUT_DONT_PERSIST_TO_DB:
-            self.dirty = Session.DIRTY_BUT_DONT_PERSIST_TO_DB
-
-    def __getitem__(self, key):
-        """Returns the value associated with key on this session."""
-        self.ensure_data_loaded()
-        return self.data.__getitem__(key)
-
-    def __setitem__(self, key, value):
-        """Set a value named key on this session.  This will start a session if
-        one is not already active."""
-        self.ensure_data_loaded()
-        if not self.sid:
-            self.start()
-        self.data.__setitem__(key, value)
-        self.dirty = True
-
-    def __delitem__(self, key):
-        """Deletes the value associated with key on this session."""
-        self.ensure_data_loaded()
-        self.data.__delitem__(key)
-        self.dirty = True
-
-    def __iter__(self):
-        """Returns an iterator over the keys (names) of the stored values."""
-        self.ensure_data_loaded()
-        return self.data.iterkeys()
-
-    def __contains__(self, key):
-        """Returns True if key is present on this session."""
-        self.ensure_data_loaded()
-        return self.data.__contains__(key)
-
-    def __str__(self):
-        """Returns a string representation of the session."""
-        if self.sid:
-            self.ensure_data_loaded()
-            return "SID=%s %s" % (self.sid, self.data)
-        else:
-            return "uninitialized session"
-
-class SessionMiddleware(object):
-    """WSGI middleware that adds session support.
-
-    ``cookie_key`` - A key used to secure cookies so users cannot modify their
-    content.  Keys should be at least 32 bytes (RFC2104).  Tip: generate your
-    key using ``os.urandom(64)`` but do this OFFLINE and copy/paste the output
-    into a string which you pass in as ``cookie_key``.  If you use ``os.urandom()``
-    to dynamically generate your key at runtime then any existing sessions will
-    become junk every time your app starts up!
-
-    ``lifetime`` - ``datetime.timedelta`` that specifies how long a session may last.  Defaults to 7 days.
-
-    ``no_datastore`` - By default all writes also go to the datastore in case
-    memcache is lost.  Set to True to never use the datastore. This improves
-    write performance but sessions may be occassionally lost.
-
-    ``cookie_only_threshold`` - A size in bytes.  If session data is less than this
-    threshold, then session data is kept only in a secure cookie.  This avoids
-    memcache/datastore latency which is critical for small sessions.  Larger
-    sessions are kept in memcache+datastore instead.  Defaults to 10KB.
-    """
-    def __init__(self, app, cookie_key, lifetime=DEFAULT_LIFETIME, no_datastore=False, cookie_only_threshold=DEFAULT_COOKIE_ONLY_THRESH):
-        self.app = app
-        self.lifetime = lifetime
-        self.no_datastore = no_datastore
-        self.cookie_only_thresh = cookie_only_threshold
-        self.cookie_key = cookie_key
-        if not self.cookie_key:
-            raise ValueError("cookie_key MUST be specified")
-        if len(self.cookie_key) < 32:
-            raise ValueError("RFC2104 recommends you use at least a 32 character key.  Try os.urandom(64) to make a key.")
-
-    def __call__(self, environ, start_response):
-        # initialize a session for the current user
-        global _current_session
-        _current_session = Session(lifetime=self.lifetime, no_datastore=self.no_datastore, cookie_only_threshold=self.cookie_only_thresh, cookie_key=self.cookie_key)
-
-        # create a hook for us to insert a cookie into the response headers
-        def my_start_response(status, headers, exc_info=None):
-            _current_session.save() # store the session if it was changed
-            for ch in _current_session.make_cookie_headers():
-                headers.append(('Set-Cookie', ch))
-            return start_response(status, headers, exc_info)
-
-        # let the app do its thing
-        return self.app(environ, my_start_response)
-
-class DjangoSessionMiddleware(object):
-    """Django middleware that adds session support.  You must specify the
-    session configuration parameters by modifying the call to ``SessionMiddleware``
-    in ``DjangoSessionMiddleware.__init__()`` since Django cannot call an
-    initialization method with parameters.
-    """
-    def __init__(self):
-        fake_app = lambda environ, start_response : start_response
-        self.wrapped_wsgi_middleware = SessionMiddleware(fake_app, cookie_key='you MUST change this')
-        self.response_handler = None
-
-    def process_request(self, request):
-        self.response_handler = self.wrapped_wsgi_middleware(None, lambda status, headers, exc_info : headers)
-        request.session = get_current_session()  # for convenience
-
-    def process_response(self, request, response):
-        if self.response_handler:
-            session_headers = self.response_handler(None, [], None)
-            for k,v in session_headers:
-                response[k] = v
-            self.response_handler = None
-        return response
-
-def delete_expired_sessions():
-    """Deletes expired sessions from the datastore.
-    If there are more than 500 expired sessions, only 500 will be removed.
-    Returns True if all expired sessions have been removed.
-    """
-    now_str = unicode(int(time.time()))
-    q = db.Query(SessionModel, keys_only=True, namespace='')
-    key = db.Key.from_path('SessionModel', now_str + u'\ufffd', namespace='')
-    q.filter('__key__ < ', key)
-    results = q.fetch(500)
-    db.delete(results)
-    logging.info('gae-sessions: deleted %d expired sessions from the datastore' % len(results))
-    return len(results)<500
Add a comment to this file

gaesessions/__init__.pyc

Binary file removed.

+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
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+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
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+
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+
+  Nothing in this License shall be construed as excluding or limiting
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+  12. No Surrender of Others' Freedom.
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+
+  13. Use with the GNU Affero General Public License.
+
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+                     END OF TERMS AND CONDITIONS
+
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+    but WITHOUT ANY WARRANTY; without even the implied warranty of
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+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

media/fileform.py

+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 from django import forms
 
-
 class FileForm(forms.Form):
 	title = forms.CharField(required=True)
-	
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 from appengine_django.models import BaseModel
 from google.appengine.ext import db
 from google.appengine.ext import blobstore
-# Create your views here.
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import urllib
+import logging
+
 from django.http import HttpResponseRedirect, Http404, HttpResponse
 from django.shortcuts import render_to_response
+from django.conf import settings
+
 from google.appengine.ext import blobstore
 from google.appengine.api import memcache
+
+
 from media import models
 from fileform import FileForm
-from utilities import blob_helper
-import urllib
-from django.conf import settings
-import logging
+from utilities.blob_helper import *
+from utilities.auth_helper import login_required
+
 
 ADMIN_PAGESIZE = settings.PAGESIZE
 
+@login_required
 def listMedia(request):
     if request.GET.get('page'):
         page = int(request.GET.get('page'))
                                                  'paging':paging})
 
 
+@login_required
 def delMedia(request, key):
     blob_key = str(urllib.unquote(key))
     logging.info(key)
     memcache.delete('mediapage-1')
     return HttpResponseRedirect('/media/')
 
+
+@login_required
 def upload(request):
     form = None
     if request.method =='POST':
                                    filesize = blob_info[0].size,
                                    type = blob_info[0].content_type)
             media_item.put()
+            memcache.flush_all()
             return HttpResponseRedirect('/posts/')
 
         if len(media_blobs) == 0:

pages/contactform.py

+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 from django import forms
 
 
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
+
 from appengine_django.models import BaseModel
 from google.appengine.ext import db
 

pages/pageform.py

+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 import models
 from django import forms
 
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 # Django module
 from django.shortcuts import render_to_response
 from django.http import HttpResponseRedirect, Http404
 from pages import models
 from pageform import PageForm
 from contactform import ContactForm
+from utilities.auth_helper import login_required
 
 # Appengine module
 from google.appengine.api import memcache
         raise Http404
 
 
+@login_required
 def listPages(request):
     if request.GET.get('page'):
         page = int(request.GET.get('page'))
                                                       'paging':paging})
 
 
+@login_required
 def newPage(request):
     pageForm = None
     if request.method == 'POST':
         newPage = PageForm(request.POST)
         if newPage.is_valid():
             newPage.save()
+            memcache.flush_all()
             return HttpResponseRedirect('/pages/')
         else:
             pageForm = PageForm(request.POST)
                                                      'pageForm':pageForm})
 
 
+@login_required
 def editPage(request, key_name):
     pageForm = None
     if request.method == 'POST':
         page = page = models.Page.get_by_key_name(key_name.replace('-',' '))
         if form.is_valid():
             form.save(page)
+            memcache.flush_all()
             return HttpResponseRedirect('/pages/')
         else:
             pageForm = PageForm(request.POST)
     return render_to_response('admin/newpage.html', {'pageForm':pageForm,
                                                      'action':page.get_edit_url()})
 
+@login_required
 def delPage(request, key_name):
     page = models.Page.get_by_key_name(key_name.replace('-',' '))
     if page:
         page.delete()
+        memcache.flush_all()
     return HttpResponseRedirect('/pages/')
 
 
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 from appengine_django.models import BaseModel
 from google.appengine.ext import db
 

posts/postform.py

+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 import models
 from django import forms
 
-# Create your views here.
-from posts import models
-import postform
+#    Copyright 2010 Hudarsono <http://hudarsono.me>
+#
+#    This file is part of MeBlog.
+#
+#    MeBlog is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    MeBlog is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with MeBlog.  If not, see <http://www.gnu.org/licenses/>.
+
 from django.shortcuts import render_to_response
 from django.template import RequestContext
 from django.http import HttpResponseRedirect, Http404
-
 from django.conf import settings
 
 from google.appengine.api import memcache
 
-from gaesessions import get_current_session
-
+from posts import models
+import postform
+from utilities.auth_helper import login_required
 
 PAGESIZE = settings.PAGESIZE
 
+@login_required
 def listPost(request):
     if request.GET.get('page'):
         page = int(request.GET.get('page'))
     raise Http404
 
 
+@login_required
 def newPost(request):
   postForm = None
   if request.method == 'POST':
     newPost = postform.PostForm(request.POST)
     if newPost.is_valid():
       newPost.save()
+
+      #flush memcache
+      memcache.flush_all()
       return HttpResponseRedirect('/posts/')
     else:
       postForm = postform.PostForm(request.POST)
                           'postForm':postForm})
 
 
+
+@login_required
 def editPost(request, year, month, day, key_name):
   if request.method == 'POST':
     post = models.Post.get_by_key_name(key_name)
       form = postform.PostForm(request.POST)
       if form.is_valid():
         form.save(post)
+        memcache.flush_all()
     return HttpResponseRedirect('/posts/')
 
   if request.method == 'GET':
                              'action':post.get_edit_url(),})
 
 
+
+@login_required
 def delPost(request, year, month, day, key_name):
   post = models.Post.get_by_key_name(key_name)
   if post:
     post.delete()
+
+    # refresh memcache
+    memcache.flush_all()
   return HttpResponseRedirect('/posts/')

Binary file modified.

      'markdown',
      'pygments',
      'gaesessions',
+     'utilities',
 #    'django.contrib.auth',
 #    'django.contrib.contenttypes',
 #    'django.contrib.sessions',

Binary file modified.

 
 	(r'^$', 'posts.views.stream'),
 
+    (r'^admin/$', 'posts.views.listPost'),
 	(r'^posts/$', 'posts.views.listPost'),
     (r'^posts/category/([-\w]+)$', 'posts.views.listPostByCategory'),
     (r'^posts/tag/([-\w]+)$', 'posts.views.listPostByTag'),

Binary file modified.

utilities/auth_helper.py

-from django.http import HttpResponsePermanentRedirect
+from django.http import HttpResponseRedirect
 from google.appengine.api import users
 
-def loginrequired(func):
-    def redirect_to_login(request):
-        return HttpResponsePermanentRedirect(users.create_login_url(request.get_full_path()))
+def login_required(func):
+    def _wrapper(request, *args, **kw):
+        user = users.get_current_user()
+        if user:
+            return func(request, *args, **kw)
+        else:
+            return HttpResponseRedirect(users.create_login_url(request.get_full_path()))
 
-    user = users.get_current_user()
-    if user:
-        return func
-    else:
-        return redirect_to_login
+    return _wrapper
+

utilities/blob_helper.py

 import cgi
 from google.appengine.ext import blobstore
 from django.http import HttpResponse
-import logging
 
 
 def get_uploads(request, field_name=None, populate_post=False):
     """
 
     CONTENT_DISPOSITION_FORMAT = 'attachment; filename="%s"'
-    logging.info(blob_key_or_info)
     if isinstance(blob_key_or_info, blobstore.BlobInfo):
       blob_key = blob_key_or_info.key()
       blob_info = blob_key_or_info
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