How to fetch ACLs of sites and individual pages in AEM On-Prem and SAAS?

Hi @omkar_phadtare ,

There are two ways you can read ACL from a node. You can either chose a

1. CRX or 
2. Jackrabbit way. 

find both examples in below piece of code.

private static final String READ_ACCESS = "jcr:read";
AccessControlManager accessControlManager = jackrabbitSession.getAccessControlManager();
AccessControlPolicy[] accessControlPolicies = accessControlManager.getEffectivePolicies(path);
for(AccessControlPolicy accessControlPolicy:accessControlPolicies) {
      JackrabbitAccessControlList accessControlList = (JackrabbitAccessControlList)accessControlPolicy;
      AccessControlEntry[] accessControlEntries = accessControlList.getAccessControlEntries();
      for(AccessControlEntry accessControlEntry:accessControlEntries) {

          //Using CRX Way
          String[] privilege = {READ_ACCESS};
          //AclPolicy aclPolicy = new AclPolicy(accessControlEntry.getPrincipal().getName(),privilege,false);
          //CRXPolicyManager crxPolicyManager = new CRXPolicyManager(jackrabbitSession);
          //crxPolicyManager.applyPolicy(path, aclPolicy);

          //Jackrabbit way
          Privilege[] privileges = new
          Privilege[]{accessControlManager.privilegeFromName(Privilege.JCR_READ)};
          JackrabbitAccessControlList acl;
          try {
                acl = (JackrabbitAccessControlList)
                accessControlManager.getApplicablePolicies(path).nextAccessControlPolicy();
          } catch (NoSuchElementException e) {
          // ignore
          acl = (JackrabbitAccessControlList) accessControlManager.getPolicies(path)[0];
        }
     for (AccessControlEntry e : acl.getAccessControlEntries()) {
         acl.removeAccessControlEntry(e);
     }
     acl.addEntry(accessControlEntry.getPrincipal(), privileges, false);
     accessControlManager.setPolicy(path, acl);
     jackrabbitSession.save();
    }
  }
}

} catch (PathNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (RepositoryException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
    // TODO Auto-generated method stub
}

References are linked in above options.

Hope that helps!

Regards,

Santosh