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In the Buglist application, the list of bugs shown in the report is currently restricted by specifically including a where clause restriction in the query used in the report (see Listing 5-2) The query includes the predicate: and ( (upper(assigned_to) = :app_user) or exists (select 1 from user_repository where upper(username) = :app_user and admin = 'Y') Imagine that a number of different applications some written in APEX and others written in languages such as Java query and operate on the data in this table Each application that accesses the data in that table would also need to incorporate the same predicate; otherwise, the security logic would not be equivalent across all the different applications Also, if you wanted to change the way the security logic was implemented, you would need to change it in each query in each application.

The shell /bin/false is often used for system accounts This is because it s impossible to log in with this shell..

The Login user story has one business class (User.cs) and one data class (UserData.cs) that need unit tests. You are going to code iteratively, so you will start with the smallest unit test possible. Using the test-driven development approach, you start with the UserTests.cs file shown in Listing 13-1, which you need to add to the TestLayer project. You will need to add a reference to the BusinessLayer and DataLayer projects on the TestLayer project, if you have not done so already. Listing 13-1. UserTests.cs File #region Using directives using System; using System.Collections.Generic; using System.Text; using NUnit.Framework; using BusinessLayer; using DataLayer; #endregion

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Nowadays, most networks are of a mixed nature. Not only is Novell eDirectory used, but Microsoft s Active Directory and other applications are employed. However, someone must administer each of these applications. To prevent instances where different people do the same job on different applications, Novell uses Nsure Identity Manager. This application allows you to synchronize identities across the network. For example, if a user is created in eDirectory, Identity Manager automatically synchronizes it to all connected applications. eDirectory doesn t have to be the starting point when creating users: user accounts can be synchronized from any application to eDirectory, which is used as a meta directory in this scenario. From there, it can be synchronized to any other application. Nsure Identity Manager works with various drivers, offering support for over 30 different applications, thus synchronizing data from any application to any other application. Complementary with OES are drivers that allow you to synchronize data from Windows NT and Active Directory. It also comes with password

To demonstrate the point, let s create a new database user and give that user permission to select the data from the buglist table (the table queried in the report) You ll name the new database user jimb, so that you can compare what happens when jimb logs in to the Buglist application and runs the report versus what he can see when he logs in to the database as the jimb user using SQL*Plus As shown in Listing 5-3, create the jimb user, grant create session permission so that the user can connect to the database, and grant select permission on the buglist table in the APEXDEMO schema to jimb Listing 5-3 Creating the jimb Database User sys@DBTEST> create user jimb identified by ardvark 2 default tablespace users 3 temporary tablespace temp; User created sys@DBTEST> grant create session to jimb; Grant succeeded sys@DBTEST> grant select on apexdemo.

synchronization, which helps you synchronize passwords between, for example, eDirectory and Active Directory. Nsure Identity Manager is discussed in 18.

buglist to jimb; Grant succeeded Now connect to the database, using SQL*Plus, as the jimb user and query the buglist table jimb@DBTEST> select count(*) from apexdemobuglist; COUNT(*) ---------18.

Another important Novell service that s included free-of-charge is Novell Clustering Services (NCS). NCS allows you to build cluster solutions for nodes running either OES - Linux or OES NetWare. For example, you can cluster-enable an NSS volume that s assigned to an OES - NetWare node as its primary node, so should it fail, it automatically fails over to an OES - Linux node. Other NetWare and Linux nodes can also be clustered with NCS. In addition, NCS offers support for up to 32 nodes, and with OES you get a two-node license for free. 19 has more on NCS.

As you can see, jimb can see every record in the table. However, you would actually like him to be able to see only the records that have been assigned to him. To make that happen, you need to define your policy function.

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