Introduction:
Liferay Parameter Auto Login is one of the mechanisms
to login into liferay portal using simple URL and it allows to user can login
simple by click some URL link and no need of sign in portlet.
What
is Auto login in liferay?
Auto login is mechanism to login into liferay portal
without provide user credential for each time login. Liferay provide different mechanisms.
The following are important Auto Login Mechanisms in
Liferay
CAS
Auto Login:
With help of this user will be authenticated by CAS
at one time and next login user can directly login into without asking credentials.
Remember
me Auto Login:
This also another one when user first login we
liferay will store credentials in cookies when user next login then it
automatically login.
Ntlm
Auto Login:
This login
uses the computer user name and password to login into liferay it need AD server
support.
Parameter
Auto Login:
This will allow user login with help of URL.We need
construct simple URL with appropriate query string and that query string should
have login parameters.
Parameter
Auto Login Implementation:
- Add Parameter Auto Login class in the list auto.login.hooks
- Check company.security.auth.type
- Construct Login URL with appropriate parameters as query string
Add
Parameter Auto Login class in the list auto.login.hooks
:
Liferay already have Parameter Auto Login class to achieve
parameter auto login so that we can use this class to enable parameter auto
login.
We need to add this class in the list auto.login.hooks so that we can enable parameter
auto login.
By default parameter auto login not enabled so we
need to enable by adding Parameter Auto Login in the list auto.login.hooks
.
We need to override auto.login.hooks portal
property by using portal-ext.properites file or simply create Liferay Hook Plugin
and override the property
Default
Property
auto.login.hooks=com.liferay.portal.security.auth.CASAutoLogin,
com.liferay.portal.security.auth.FacebookAutoLogin,
com.liferay.portal.security.auth.NtlmAutoLogin,
com.liferay.portal.security.auth.OpenIdAutoLogin,
com.liferay.portal.security.auth.OpenSSOAutoLogin,
com.liferay.portal.security.auth.RememberMeAutoLogin,
com.liferay.portal.security.auth.SiteMinderAutoLogin
|
Note:
In the above list we don’t have Parameter Auto login
class.
Now Override auto.login.hooks
with help of Liferay
Hook Plugin or simply use portal-ext.properties file which is available in Liferay Home directory.
The following is overridden auto.login.hooks
property
auto.login.hooks=com.liferay.portal.security.auth.CASAutoLogin,
com.liferay.portal.security.auth.FacebookAutoLogin,
com.liferay.portal.security.auth.NtlmAutoLogin,
com.liferay.portal.security.auth.OpenIdAutoLogin,
com.liferay.portal.security.auth.OpenSSOAutoLogin,
com.liferay.portal.security.auth.RememberMeAutoLogin,
com.liferay.portal.security.auth.SiteMinderAutoLogin,
com.liferay.portal.security.auth.ParameterAutoLogin
|
Check
company.security.auth.type
Now we need to check company.security.auth.type
based on this we need to pass userId,
email address or screen name as login parameters.
Based on desired login parameter we need to override
the above property and by default its email
address for liferay portal.
If we want change then we need to override above
property with the help of Liferay Hook Plugin or portal-ext.properties file
The following is property available by default
# The portal can authenticate users based
on their email address, screen
# name, or user id.
#
company.security.auth.type=emailAddress
#company.security.auth.type=screenName
#company.security.auth.type=userId
|
Note:
If we want change authentication type simply
uncomments for required property and comment the current property this can be
done from either portal-ext.properies or
Liferay Hook Plugin.
Construct
Login URL with appropriate parameters as query string
Once we have done above 2 steps then we need to
construct Login URL with appropriate parameters in query string.
Parameter Auto login use the two parameters parameterAutoLoginLogin, parameterAutoLoginPassword
to construct URL.
Based on company.security.auth.type
we need to pass appropriate values like userId/emailAddress/screenName
and password.
Example
URL for authentication type Email Address
Example
URL for Authentication type userId
Example
URL for Authentication type Screen Name
Note:
When we hit above URLs in web browser then user
automatically login to portal. Here we don’t need of sign in portlet to login.
Important
points:
Here we simple use plain user name and password and
this is not secured mechanism but we will use some encryption mechanism to encrypt
user name and password.
Once it reaches Parameter Auto Login class there we decrypt
the data and do the authentication. For this we need to customize the Parameter
Auto Login class accordingly.
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