django - 404 error reporting - python

I have set 404 error reporting on Django 1.6 by adding, django.middleware.common.BrokenLinkEmailsMiddleware at MIDDLEWARE_CLASSES. I have placed it first since some of other middleware classes may interrupt. However, I am not receiving 404 errors.
EMAIL_USE_TLS =
EMAIL_HOST =
EMAIL_HOST_USER =
EMAIL_HOST_PASSWORD =
EMAIL_PORT =
Above are my email setting and have been tested.
It is annoying since on my local environment one of generic views is working however not on production and I just receive 404 without knowing the actual error.
Any suggestions please?

According to the documentation, Django will only send broken link emails when DEBUG=False and BrokenLinkEmailsMiddleware appears before other middleware that intercepts 404 errors. So ensure that django.middleware.common.BrokenLinkEmailsMiddleware is first in your MIDDLEWARE_CLASSES tuple. If you have both of those settings correct, ensure that you can send an email using Django's mail_managers function (https://docs.djangoproject.com/en/1.7/topics/email/#mail-managers) via the Django shell.

Related

Unable to Login Django Admin after Update : Giving Error Forbidden (403) CSRF verification failed

I am encountering the error Forbidden (403) CSRF verification failed when trying to login into the Django Admin after updating the version of Django.
Also, there were no changes in the settings of Django.
The error can be seen in the below image:
I Already posted it on https://shriekdj.hashnode.dev/unable-to-login-django-admin-after-update-giving-error-forbidden-403-csrf-verification-failed-request-aborted.
This Issue can happen suddenly after updating to the newer version Of Django.
Details
Django Project Foundation team made some changes in security requirements for all Django Versions 4.0 and Above. They made it mandatory to create a list of URLs getting any type of form upload or POST request in project settings named as CSRF_TRUSTED_ORIGINS.
They did not update the details in the latest tutorial documentation, but they published the Changes Notes at https://docs.djangoproject.com/en/4.0/releases/4.0/#csrf-trusted-origins-changes-4-0.
First Solution
For localhost or 127.0.0.1.
Goto settings.py of your Django project and create a new list of URLs at last like given below
CSRF_TRUSTED_ORIGINS = ['http://*', 'https://*']
if You're running a project in localhost, then you should open all URLs here * symbol means all URLs. Also, http:// is mandatory.
Second Solution
This is also for Localhost and DEBUG=True.
Copy the list of ALLOWED_ORIGINS into CSRF_TRUSTED_ORIGINS as given below.
ALLOWED_ORIGINS = ['http://*', 'https://*']
CSRF_TRUSTED_ORIGINS = ALLOWED_ORIGINS.copy()
Third Solution
When deploying, you have to add URLs to allow form uploading ( making any POST request ).
I know this may be tricky and time-consuming but it's now mandatory.
Also, this is mandatory for Online IDEs also like Replit and Glitch.
Open the config file (most likely settings.py) and set the CSRF_TRUSTED_ORIGINS key as a shallow copy of the ALLOWED_HOSTS key which, in turn, should be set as recommended in the documentation.1
For example:
# -*- coding: utf-8 -*-
# For security consideration, please set to match the host/domain of your site, e.g., ALLOWED_HOSTS = ['.example.com'].
# Please refer https://docs.djangoproject.com/en/dev/ref/settings/#allowed-hosts for details.
ALLOWED_HOSTS = ['.yourdomain.com', '.localhost', '127.0.0.1', '[::1]']
# Whether to use a secure cookie for the CSRF cookie
# https://docs.djangoproject.com/en/3.2/ref/settings/#csrf-cookie-secure
CSRF_COOKIE_SECURE = True
# The value of the SameSite flag on the CSRF cookie
# https://docs.djangoproject.com/en/3.2/ref/settings/#csrf-cookie-samesite
CSRF_COOKIE_SAMESITE = 'Strict'
CSRF_TRUSTED_ORIGINS = ALLOWED_HOSTS.copy()
(...)
1 The config file contains a link to the documentation of the ALLOWED_HOSTS key — right above that key. Surprise, surprise.

Django_hosts Not Working With Django's Default Authentication

I'm using this package called django_hosts to re-route urls for some apps.
Everything is working fine except for the fact that django_hosts is not working with Django Authentication.
I hosted this url api.example.com, so on this page with the url api.example.com:8000/add_post, I want users to add post but before doing that you must be authenticated. So after I logged in, I still can't submit post via the form talkless of posting. But when I go back to example.com, it shows that I'm logged in but api.example.com is telling me otherwise.
How do I make django authentication work with this package?
The problem is that the authentication token is hooked to the domain. Using Django's default configuration, the api.example.com can't access the example.com auth token.
You can change this behaviour by setting the SESSION_COOKIE_DOMAIN configuration in your settings.py module:
SESSION_COOKIE_DOMAIN = 'example.com'
But not too fast! Do it carefully, otherwise you can break your application:
Be cautious when updating this setting on a production site. If you
update this setting to enable cross-domain cookies on a site that
previously used standard domain cookies, existing user cookies will be
set to the old domain. This may result in them being unable to log in
as long as these cookies persist.
More info on the official documentation.

django admin returns 403 csrf error

I am producing a django/angular project. Django being the backend administration and Angular being the frontend/public display. I have created a Django 1.11 app and loaded all files, installed dependencies, etc. Locally, the site works fine and as expected. Also, since forms will be Angular js I commented out the django.middleware.csrf.CsrfViewMiddleware in my settings.py which I thought would disable the csrf token even being needed, but apparently not.
After setting up server and installing files the admin login page appears but I get the following error when I try and login:
Forbidden (CSRF token missing or incorrect.): /admin/login/
Any ideas on why this is happening would be greatly appreciated.
You can't commented out the 'django.middleware.csrf.CsrfViewMiddleware' in your settings.py, The CSRF middleware provides easy-to-use protection against Cross Site Request Forgeries. Since you are using Augualr js instead of django forms and views, you can set the csrftoken cookie in your browser cookies. Check this for detail: https://docs.djangoproject.com/en/1.11/ref/csrf/#module-django.middleware.csrf

Django registration email not sending

I've been trying to get the django-registration-redux account activation email to send to newly registered users.
I've gotten all non-email related parts to work, such as loggin in/out and actually registering the user! When i register, it automatically logs my in as that user. But i never get the activation email.
I've tried various different things to try get this to work, I've followed some tutorials on setting whole thing up but the emails still dont work.
heres some of the code setup, im using registration templates that i downloaded online.
settings.py
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'registration',
'synths',
)
# user reg settings
REGISTRATION_OPEN = True
ACCOUNT_ACTIVATION_DAYS = 7
REGISTRATION_AUTO_LOGIN = True
LOGIN_REDIRECT_URL = '/'
LOGIN_URL = '/login/'
# i tried including this line but still nothing
# EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
# email
# first i tried setting up the debbuging server with this CMD line
# python -m smtpd -n -c DebuggingServer localhost:1025
# i dont know if it worked!, i got no errors but the cursor just
# sat there blinking at me! i was expecting some output to tell me
# the server had started
# these were the settings i used for that
EMAIL_HOST = '127.0.0.1'
EMAIL_PORT = 1025
EMAIL_HOST_USER = ''
EMAIL_HOST_PASSWORD = ''
# then i tried using my own address and smtp.live.com
EMAIL_HOST = 'smtp.live.com'
EMAIL_PORT = 25
EMAIL_HOST_USER = 'myemailaddress#hotmail.com'
EMAIL_HOST_PASSWORD = '123123abcabc'
# still nothing
am i missing any important settings here?
urls.py
# included amongst my other urls
(r'^accounts/', include('registration.backends.simple.urls')),
seems all in order with the tutorials and documentation. like i said, registration works perfectly bar the emails.
one thing ive noticed is that you probably shouldn't have auto loggin = True if you want a user to activate their accounts, but commenting that line out didnt change anything, i still got logged in automatically after registering. Seems like a minor aside but maybe this has something to do with the emails not working?
i dunno, im lost with it. Either im missing some settings, the code doesnt work, python smtpd doesnt work, or my smtp.live.com settings are wrong!
any insigths greatly appreciated!
EDIT: when trying the 'reset password' email function i get this error
SMTPException at /accounts/password/reset/
SMTP AUTH extension not supported by server.
Request Method: POST
Request URL: http://localhost:8000/accounts/password/reset/
Django Version: 1.7.6
Exception Type: SMTPException
Exception Value: SMTP AUTH extension not supported by server.
Exception Location: C:\Python34\lib\smtplib.py in login, line 613
Python Executable: C:\Python34\python.exe
Python Version: 3.4.3
EDIT 2: using these settings i get the the password/reset/done page but recieve no actual email
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
EMAIL_HOST = '127.0.0.1'
EMAIL_PORT = 1025
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
will only display the email on the console.
Instead you should use
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
Moreover it is more convenient to use a existing smtp server like gmail
For that you need to add these to your django settings file
EMAIL_BACKEND='django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST ='smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'youruser#gmail.com'
EMAIL_HOST_PASSWORD = 'gmail app password' #This is not your gmail password.
EMAIL_USE_TLS = True
More help on the password can be found here
You may want to try adding a DEFAULT_FROM_EMAIL setting and setting these settings:
EMAIL_USE_TLS = True
EMAIL_USE_SSL = True
This will allow Django to use secure email-sending.
Check your urls.py file, and make sure you are using the hmac not the simple
urlpatterns = [
#...
url(r'^accounts/', include('registration.backends.hmac.urls')),
]
Also, in your setting.py, INSTALLED_APPS, make sure that the 'registration' is before django.contrib.auth.
INSTALLED_APPS = [
#.....
'registration',
'django.contrib.auth',
#...
]
I know this is an old question, but I thought it would help anybody else looking for the answer. You have setup your urlconf to use the one step registration. Below is a snippet from their docs -
This backend’s workflow is deliberately as simple as possible:
A user signs up by filling out a registration form.
The user’s account is created and is active immediately, with no intermediate confirmation or activation step.
The new user is logged in immediately.
If you want to see the emails in the console, use the following urlconf instead -
url(r'^account/', include('registration.backends.default.urls')),
Hope that helps.

Unable log in to the django admin page with a valid username and password

I can’t log in to the django admin page. When I enter a valid username and password, it just brings up the login page again, with no error messages
This question is in the django FAQ, but I've gone over the answers there and still can't get past the initial login screen.
I'm using django 1.4 on ubuntu 12.04 with apache2 and modwsgi.
I've confirmed that I'm registering the admin in the admin.py file, made sure to syncdb after adding INSTALLED_APPS.
When I enter the wrong password I DO get an error, so my admin user is being authenticated, just not proceeding to the admin page.
I've tried both setting SESSION_COOKIE_DOMAIN to the machine's IP and None. (Confirmed that the cookie domain shows as the machine's IP in chrome)
Also, checked that the user authenticates via the shell:
>>> from django.contrib.auth import authenticate
>>> u = authenticate(username="user", password="pass")
>>> u.is_staff
True
>>> u.is_superuser
True
>>> u.is_active
True
Attempted login using IE8 and chrome canary, both results in the same return to the login screen.
Is there something else I'm missing????
settings.py
...
MIDDLEWARE_CLASSES = (
'django.middleware.gzip.GZipMiddleware',
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.middleware.transaction.TransactionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
)
AUTHENTICATION_BACKENDS = ('django.contrib.auth.backends.ModelBackend',)
INSTALLED_APPS = (
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.admin',
'django.contrib.staticfiles',
'django.contrib.gis',
'myapp.main',
)
SESSION_EXPIRE_AT_BROWSER_CLOSE = True
SESSION_SAVE_EVERY_REQUEST = True
SESSION_COOKIE_AGE = 86400 # sec
SESSION_COOKIE_DOMAIN = None
SESSION_COOKIE_NAME = 'DSESSIONID'
SESSION_COOKIE_SECURE = False
urls.py
from django.conf.urls.defaults import * ##UnusedWildImport
from django.contrib.staticfiles.urls import staticfiles_urlpatterns
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
(r'^bin/', include('myproject.main.urls')),
(r'^layer/r(?P<layer_id>\d+)/$', "myproject.layer.views.get_result_layer"),
(r'^layer/b(?P<layer_id>\d+)/$', "myproject.layer.views.get_baseline_layer"),
(r'^layer/c(?P<layer_id>\d+)/$', "myproject.layer.views.get_candidate_layer"),
(r'^layers/$', "myproject.layer.views.get_layer_definitions"),
(r'^js/mapui.js$', "myproject.layer.views.view_mapjs"),
(r'^tilestache/config/$', "myproject.layer.views.get_tilestache_cfg"),
(r'^admin/', include(admin.site.urls)),
(r'^sites/', include("myproject.sites.urls")),
(r'^$', "myproject.layer.views.view_map"),
)
urlpatterns += staticfiles_urlpatterns()
Apache Version:
Apache/2.2.22 (Ubuntu) mod_wsgi/3.3 Python/2.7.3 configured
Apache apache2/sites-available/default:
<VirtualHost *:80>
ServerAdmin ironman#localhost
DocumentRoot /var/www/bin
LogLevel warn
WSGIDaemonProcess lbs processes=2 maximum-requests=500 threads=1
WSGIProcessGroup lbs
WSGIScriptAlias / /var/www/bin/apache/django.wsgi
Alias /static /var/www/lbs/static/
</VirtualHost>
<VirtualHost *:8080>
ServerAdmin ironman#localhost
DocumentRoot /var/www/bin
LogLevel warn
WSGIDaemonProcess tilestache processes=2 maximum-requests=500 threads=1
WSGIProcessGroup tilestache
WSGIScriptAlias / /var/www/bin/tileserver/tilestache.wsgi
</VirtualHost>
UPDATE
The admin page does proceed when using the development server via runserver so it seems like a wsgi/apache issue. Still haven't figured it out yet.
SOLUTION
The problem was that I had the settings file SESSION_ENGINE value set to 'django.contrib.sessions.backends.cache' without having the CACHE_BACKEND properly configured.
I've changed the SESSION_ENGINE to 'django.contrib.sessions.backends.db' which resolved the issue.
Steps to debug:
Make sure that your Database is synced
Double check that you have a django_session table
Try to authenticate
Do you see a record being created in the django_session table?
IF NOT
remove non-standard settings
AUTHENTICATION_BACKENDS = ('django.contrib.auth.backends.ModelBackend',)
SESSION_EXPIRE_AT_BROWSER_CLOSE = True
SESSION_SAVE_EVERY_REQUEST = True
SESSION_COOKIE_AGE = 86400 # sec
SESSION_COOKIE_DOMAIN = None
SESSION_COOKIE_NAME = 'DSESSIONID'
SESSION_COOKIE_SECURE = False
Make sure that your Database is synced
Double check that you have a django_session table
Try to authenticate
Do you see a record being created in the django_session table?
Let me know if this turns up any useful debug.
Sample settings file: https://github.com/fyaconiello/Django-Blank-Bare-Bones-CMS/blob/master/dbbbcms/settings.py
>>> from django.contrib.auth import authenticate
>>> u = authenticate(username="user", password="pass")
>>> u.is_staff = True
>>> u.is_superuser = True
Is there something else I'm missing?
u.is_active should be True
I had this problem. The issue is that in production I set two variables to True that allowed me to connect to the site using https.
SESSION_COOKIE_SECURE and CSRF_COOKIE_SECURE should be set to False if you are developing on localhost http. Changing these two variables to False allowed me to sign into the admin site when developing locally.
I don't believe the admin password is stored in the settings.py file. It's created when you first syncdb. I am thinking you either skipped creating the superuser or just made a typo.
Try running in terminal at your projects root.:
python django-admin.py createsuperuser
That will allow you to retype your admin login. Also seen here https://docs.djangoproject.com/en/dev/ref/django-admin/
Did you try by creating the user with :
python manage.py createsuperuser
I have the same issue when I create the db on a test machine and migrate it to the deployment server...
We had a similar issue in our app and these might help:
Use cleanup command to clear older sessions from django_sessions
Check the cookie size in firefox(firebug) or chrome developer tools. Because messaging is enabled by default in admin(django.contrib.messages.middleware.MessageMiddleware), the cookie size sometimes get larger than 4096 bytes with multiple edits and deletes. One quick test is to delete the "message" cookie and see if you can login after that.
And we actually ended up switching to nginx/uwsgi route because of this and other memory related issues with apache. Haven't seen this repeated in nginx since.
After not being able to log in myself, I saw in the comment above someone mentioned about removing non-standard settings.
Adding this to my local settings solved it for me
SESSION_COOKIE_SECURE = False
sounds like a session problem because after the post you get redirected and immediately the system has forgotten that you logged in.
try the following:
check your session backend is working.
swap it with cache backend if you use db cache backend to check if transaction middleware is messing around.
try db backend and check if there are sessions stored in the db table
I'm not exactly sure, but the problem might be with your URL configuration, concretely in these two lines:
(r'^admin/', include(admin.site.urls)),
(r'^sites/', include("myproject.sites.urls")),
A longer time ago, I had trouble with browsing the admin of my Django project because a single URL configuration overwrote a part of the admin url. It seems that Django doesn't like it when you specify a custom URL configuration that contains elements which are also part of the admin URL. In your case, you have the app django.contrib.sites enabled in your settings.py. You can access the admin panel of this app by going to http://127.0.0.1:8000/admin/sites/. It might be that your URL configuration with r'^sites/' in it overrides a part of the admin url. Try renaming this specific URL configuration or disable django.contrib.sites in INSTALLED_APPS for testing purposes.
Please note that this is just an assumption. All I know is that Django's admin panel is a bit picky about URL configurations using similar names like its own URLs. I cannot test it myself at the moment. But maybe this helps you a bit.
Check that you have at least one site to work with.
>>> from django.contrib.sites.models import Site
>>> Site.objects.count()
(0.048) SELECT COUNT(*) FROM `django_site`; args=()
1
If you see 0 here - create one.
Checking some other articles on this topic, it could be related to sys.path. Can you check and compare sys.path when running the dev server and when running WSGI.
For some details, have a look this and that article. But I would check the sys.path first, before going into the details of this article.
Make sure your database user table having following entry is true:
is_staff => True (if exit).
is_active => True .
is_superuser => True.
This is not OP's issue, but I am posting this answer in the hopes someone may have gone down the same path as I and arrived at this question as a result.
I came back to an old codebase after a year and was denied access to the admin panel despite all of the usual checks passing (user is present, nothing looks incorrect in the database, all debug modes are on, etc). Unfortunately, I had forgotten that the admin sign in page was not at the usual /admin route, but rather at an alternate route. The /admin page was a fake sign in page that always resulted in a failed sign in.
This setup was created using the app django-admin-honeypot.
For me below settings worked on localhost
AUTHENTICATION_BACKENDS = [
'django.contrib.auth.backends.ModelBackend',
]
SESSION_COOKIE_DOMAIN = None
SESSION_ENGINE = 'django.contrib.sessions.backends.db'
Disclaimer: I cannot add comments yet, so I have to ask clarification here proposing a solution at the same time. Sorry for that.
Is the user logged-out immediately after logging-in? something like this issue
You can check it in many ways, I suggest to add a hook to the logout signal (you can put it in your models.py):
from django.contrib.auth.signals import user_logged_out
def alertme(sender, user, request, **kwargs):
print ("USER LOGGED OUT!") #or more sophisticate logging
user_logged_out.connect(alertme)
then try to log in and check if the message appears in your console. If it appears, then you have to check if you have a redirect or a customized template calling logout after login. Hope it helps you find the issue.
I had same problem and it was just solved after restarting server :
systemctl restart nginx
You can ensure, the created user has been flagged as Is_staff = True, I sometimes forget to flag this to allow users to login to django admin
I had a related issue where I'd try to log in and the page would hang before the socket would eventually be killed. It turned out that I was indeed being logged in, but one of the login signal processors was freezing.
Celery couldn't pass its asynchronous tasks to RabbitMQ because the RabbitMQ server wasn't able to start.
For me, I could not login to the admin page in firefox but could login in chrome.
The problem was that I had CSRF_COOKIE_PATH set in my settings.py.
Never use that. It does not not work properly on django 1.8.
What I did was to navigate manually to the url I wanted to visit.
So like: http://wildlifeapi.herokuapp.com/admin/ was returning the awful Heroku application error.
So what I did was to visit http://wildlifeapi.herokuapp.com/admin/api/animal/ and BINGO! it worked.
The funny thing is that it works well on my phone. It's probably a django redirection bug.
My issue was that My Admin Page was not loading and not working. Here is what I did:
pip uninstall django
pip install django==2.2
For more Detail Check Django Documentation.
For anyone who encountered this problem after upgrading Django, the problem could be that the signature of the authenticate function has changed at some point. If the signature doesn't match what's expected, the backend is just ignored. So make sure your custom authentication backend authenticate method looks like this:
class EmailUsernameAuthenticationBackend(ModelBackend):
def authenticate(self, request, username=None, password=None, **kwargs):
# ...
And NOT like this (without the request argument):
class EmailUsernameAuthenticationBackend(ModelBackend):
def authenticate(self, username=None, password=None, **kwargs):
A bit late for the party, but to me it was different and surprinsingly simpler: for whatever reason my superuser account was gone so, obviously, the solution was I had to create it again.
I'm 99% sure I had executed migrate and makemigrations a few times after having created my superuser, but go figure...
It took me about a whole hour to finally figure it out, however. None of the variables discussed here existed in my settings.py -and still don't to the present moment- (probably because it has been nearly 10 years, so things might have changed considerably), like SESSION_ENGINE, SESSION_COOKIE_DOMAIN, CACHE_BACKEND, django_session table...
Also, Django's FAQ on this subject mentions checking if my account is_active and is_staff, but unfortunately without ever mentioning how to do it.
For my case it is always the issue with SESSION_COOKIE_DOMAIN:
On local machine I set it like:
SESSION_COOKIE_DOMAIN = 'localhost'
On remote one, domain one, like:
SESSION_COOKIE_DOMAIN = 'yourdomainname.com'
In my case, I was not able to log in because I was using email in the place of username (which in my case was "admin") to try to log in. So do ensure you're using the right username and password to log in
Use some other virtual environment.it worked for me when i used conda environment.

Categories

Resources