LDAP integration with AEM6 (OSGi Config way)

In AEM 6, LDAP support comes with a new implementation that requires a different type of configuration than with previous versions.

All LDAP configurations are now available as OSGi configurations. They can be configured via the Web Management console at:

http://serveraddress:4502/system/console/configMgr

The required config classes are listed below.

1. org.apache.jackrabbit.oak.security.authentication.ldap.impl.LdapIdentityProvider
2. org.apache.jackrabbit.oak.spi.security.authentication.external.impl.DefaultSyncHandler
3. org.apache.jackrabbit.oak.spi.security.authentication.external.impl.ExternalLoginModuleFactory. 

The configs can be updated manually via OSGi console or via deployment. We can use the follow steps & config files to add/update an LDAP provider.

Create OSGi config file of type  "sling:OsgiConfig" & name it to 
"org.apache.jackrabbit.oak.security.authentication.ldap.impl.LdapIdentityProvider.xml". 

See here for reference.

Similarly create two more config files & name them as below.

org.apache.jackrabbit.oak.spi.security.authentication.external.impl.DefaultSyncHandler.xml

org.apache.jackrabbit.oak.spi.security.authentication.external.impl.ExternalLoginModuleFactory.xml

Now with this config files in place, do a config/content deployment & upon successful deployment your AEM instance is configured with the provided LDAP server.

Tested with OpenDS 2.2 & AEM 6

Please Note: You may need to restart your AEM instance once the configs are applied.

Inject OSGi services in Sling models (Pojos) - Sling model way

Create the injection point in the sling model class with @Source annotation & assign "osgi-services" as a value to the source annotation. 

By this we can inject the below OSGi service in the Sling Model class.

JCR content mapping with Sling Model

follow the easy steps to use sling model for JCR content mapping.

1. Add sling model bundle dependency information in pom.xml  
2. Add Sling-Model-Packages declaration in the instruction 
3. Annotate pojo class with @Model annotation and use @Inject against the fields (with getters)  
4. Now adapt this pojo with resource.adaptTo() 
5. This Will map the below content structure easily without the bulgy or cluttered code.  

Remote access of JCR repository in CQ5 | AEM

Follow the below steps to access the CQ5 JCR repository (CRX) remotely.

1. Construct the remote URL of your CQ instance.
1. e.g. http://localhost:4502/crx/server
2. Where localhost  is the host where CQ is running & 4502 is port where CQ is listening to the requests.
3. Get the repository by using the JCRUtils class which is available in the jackrabbit-jcr-commons.jar library.
1. repository = JcrUtils.getRepository("http://localhost:4502/crx/server");
4. Create a SimpleCredential object by passing username, password entries.
1. SimpleCredentials creds = new SimpleCredentials("admin", "admin".toCharArray());
5. Invoke the login method of repository object by passing the credential object & the workspace name.
1. Session session = repository.login(creds, "crx.default");

A code snippet for the above can be found below

Access different widgets inside the widget event listeners | CQ5 / AEM

To access widgets inside the event listeners of any widget, follow the below step.

1. Get the "dialog" object first.  
1. var dailogObject = this.findParentByType('dialog');
2. This will return the dialog object associated with your compoent dialog. Then look for the corresponding widget by invoking 
1. var titleField = dailogObject .getField('./jcr:title'); 
3. The above function looks for a widget by name './jcr:title' and returns the widget object associated.

Use case scenario.

Let's create a component dialog with 2 widgets (Pathfield, TextField). 

use case 1: if author selects any link URL then the corresponding title of the page should be set into the TextField widget.

Below steps can be followed to achieve this.

1. create a component dialog with two widgets.
1. One path field with name "./path" and xtype is  "pathfield"
2. Text field with name "./title" and xtype is "textfield" 
2. Attach a listener to the path field. And add "dialogclose" event to the listener. 
3. The javascript function for the above event can be written as below.
5. Sample screen shot
6. 

Attach listeners to widgets in CQ5 / AEM

Follow the below steps to create or attach listeners (javascript event listeners) to any widget in CQ5 / AEM.

1. Create a node by name "listeners" of type "nt:unstructured"
2. Find out the events which can be attached to a widget. You can find the list of events from the CQ Widget API documentation. Click here to visit.
3. e.g. The "pathfield" widget has got one event called "dialogclose". This event is fired when user selects any link from the browse field & clicks OK.
4. To attach this add one property by name "dialogclose" to the listeners node. The value should be any javascript function call. 
1. e.g. function(){ console.log("You have selected a link in path field"); }
5. Please see below  image for reference.

Edit the Bottom tool bar of SmartImage widget in CQ5 / AEM

Modify the below properties to remove/edit the tool bar (appears on the bottom) of the HTML5 smart image widget. (xtype: html5smartimage)

disableZoom="{Boolean}true" This will disable the zoom functionality
mapParameter="0" This will disable the Map feature
rotateParameter="0" This will disable the image rotation capability
cropParameter="" This will disable the image crop capability