This Pluggable Authentication Service (PAS) plugin will lock a login after a predetermined number of incorrect attempts. Once locked, the user will be shown a page that tells them to contact their administrator to unlock.
Project description
This Pluggable Authentication Service (PAS) plugin will lock a login after a predetermined number of incorrect attempts. Once locked, the user will be shown a page that tells them to contact their administrator to unlock.
Requires:
PluggableAuthService and its dependencies
(optional) PlonePAS and its dependencies
Details
vLoginLockout can be used as a Plone plugin or with zope and PAS alone. First we’ll show you how it works with Plone.
To Install
Install into Plone via Add/Remove Products
To Use
First login as manager:
>>> from Products.Five.testbrowser import Browser
Now we’ll open up a new browser and attempt to login:
>>> browser = Browser()
>>> browser.open(self.portal.absolute_url()+'/login_form')
>>> browser.getControl('Login Name').value = 'user'
>>> browser.getControl('Password').value = 'user'
>>> browser.getControl('Log in').click()
>>> print browser.contents
<BLANKLINE>
...You are now logged in...
Let’s try again with another password:
>>> browser = Browser()
>>> browser.open(self.portal.absolute_url()+'/login_form')
>>> browser.getControl('Login Name').value = 'user'
>>> browser.getControl('Password').value = 'notpassword'
>>> browser.getControl('Log in').click()
>>> print browser.contents
<BLANKLINE>
...Login failed...
this incorrect attemp will show up in the log:
>>> admin = Browser()
>>> admin.open(self.portal.absolute_url()+'/login_form')
>>> admin.getControl('Login Name').value = 'admin'
>>> admin.getControl('Password').value = 'admin'
>>> admin.getControl('Log in').click()
>>> admin.getLink('Site Setup').click()
We’ve installed a Control panel to monitor the login attempts
>>> admin.getLink('LoginLockout').click()
>>> print admin.contents
<html>
...
...<td>user</td><td>2</td>...
If we try twice more we will be locked out:
>>> browser.getControl('Login Name').value = 'user'
>>> browser.getControl('Password').value = 'notpassword2'
>>> browser.getControl('log in').click()
>>> browser.getControl('Password').value = 'notpassword3'
>>> browser.getControl('log in').click()
>>> print browser.contents
<html>
...
You have been locked out. Please contact the system administrator
Now even the correct password won’t work:
>>> browser.open(self.portal.absolute_url()+'/login_form')
>>> browser.getControl('Login Name').value = 'user'
>>> browser.getControl('Password').value = 'user'
>>> browser.getControl('log in').click()
>>> print browser.contents
You have been locked out. Please contact the system administrator
The administrator can reset this persons account:
>>> admin.getLink('Site Setup').click()
>>> admin.getLink('LoginLockup').click()
>>> print admin.contents
user attemps 4
>>> admin.getControl('user').click()
>>> admin.getControl('reset accounts').click()
>>> print admin.contents
User accounts reset...
and now they can log in again:
>>> browser.open(self.portal.absolute_url()+'/login_form')
>>> browser.getControl('Login Name').value = 'user'
>>> browser.getControl('Password').value = 'user'
>>> browser.getControl('log in').click()
>>> print browser.contents
You have logged in
Manual Installation
This plugin needs to be installed in two places, the instance PAS where logins occur and the root acl_users.
1. Place the Product directory ‘LoginLockout’ in your ‘Products/’ directory. Restart Zope.
2. In your instance PAS ‘acl_users’, select ‘LoginLockout’ from the add list. Give it an id and title, and push the add button.
3. Enable the ‘Authentication’, ‘Challenge’ and the ‘Update Credentials’ plugin interfaces in the after-add screen.
4. Rearrange the order of your ‘Challenge plugins’ so that the ‘LoginLockout’ plugin is at the top.
Repeat the above for your root PAS but as a plugin to
Anonymoususerfactory
Update Credentials
and ensure LoginLockout is the first Anonymoususerfactory
Steps 2 through 5 below will be done for you by the Plone installer.
That’s it! Test it out.
Implementation
If the root anonymoususerfactory plugin is activated following an authentication plugin activation then this is an unsuccesful login attempt. If the password was different from the last unsuccessful attempt then we incriment a counter in data stored persistently in the root plugin.
If the instance plugin tries to authenticate a user that has been marked has having too many attempts then Unauthorised will be raised. This will activate the challenge plugin which will display a locked out message instead of another login form.
updateCredentials is called when the login was successful and in this case we reset the unsuccessful login count.
Credits
Dylan Jay, original code.
Kees HinK for the Plone configlet and installer
Thanks to Daniel Nouri and BlueDynamics for their NoDuplicateLogin which served as the base for this.
Changes
0.3 2011-03-04 (Andreas Jung)
internal cleanup
using GenericSetup where possible
added support for logging successful login attempts
added support logging password changes
0.2 2009-04-20 (Dylan Jay)
Eggified merged configlet version
Started doctest
2009-03-10 (Kees Hink):
Added configlet for viewing failed attempts and resetting accounts from the plone control panel.
Quite probably, dropped support for pure Zope usage.
2008-12-18 (Kees HinK):
Added installer, using Extensions/Install.py. (Unfortunately, Generic Setup does not yet seem to support uninstalling, but the methods in setuphandlers.py and the import profile (profiles/default) are there for when you want to use them. Just uncomment the relevant zcml directives.)
0.1 (Dylan Jay):
Initial Version
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