HTTP Access for Repositories on SAP Web Application Server (SAP Library

HTTP Access for Repositories on SAP Web Application Server

Use

Knowledge Provider’s Content Management Service can use both the HTTP server and the HTTP client interface of SAP Web Application Server (see also HTTP Communication with the SAP System as a Client and HTTP Communication with the SAP System as a Server).

Note

The test report RSCMST is provided for testing access to the HTTP Content Server and the database repository. The report checks that the repositories are working properly. The report is also used in the certification procedure.

The SAP Content Server Interface (see also SAP Content Server HTTP 4.5 Interface) is implemented in the SAP system as of Release 6.10. This makes the database repository HTTP-compatible. HTTP compatibility contains the functions of the above-mentioned interface.

HTTP compatibility comprises the following functions:

HTTP access to the database repository

For example, SAP ArchiveLink can use the database repository as a HTTP Content Server repository if the corresponding settings are made in transaction OAC0. Thanks to HTTP compatibility, new features are now available, for example, you can now view documents stored in the database repository in the browser. For example, you can now display documents in the browser when using the database repository.

HTTP access to the HTTP repository

This allows you to use the SAP system as a gateway.

Note

Use the class CL_HTTP_EXT_CSIF to implement SAP Content Server interface.

This functionality is intended for use in the following situations:

Another SAP system needs to access your documents. To allow this, set your repository as a HTTP repository on the other SAP system and save the corresponding technical data:

Enter an application server in your own SAP system as the HTTP server. The Internet Communication Manager (ICM) must be running on this application server.

Enter the HTTP port of your own SAP system as the port.

Enter /sap/bc/contentserver as the path.

To enable external access to all repositories of the SAP system via this gateway, the gateway simply has to point to the HTTP port of the application server. The gateway can be specified as an alias for any content server.

Caution

The gateway must be at a different location from the application server.

Prerequisites

HTTP must be activated in the Internet Communication Manager. For information on the ICM, which is a component of SAP Web Application Server, see SAP Web Application Server Components and Structure of the ICM.

Note

If an SAP system has more than one application server, HTTP need only be activated on one application server.

To use this functionality you need to create a user in the HTTP services maintenance screen (see below).

Features

HTTP Access to Repositories

It is possible to access repositories via HTTP using SAP Web Application Server (see also SAP Web Application Server), especially R/3 database repositories. To do this, in your system you need a user for anonymous access, without any permissions (see below). You can create this user in transaction SICF (see below). If you do not create this user, the system outputs a logon screen at the relevant point.

Note

If you want to use cache servers for HTTP access to repositories via SAP Web Application Server, you need a database repository with version 0046. There are no plans to support cache server functionality with version 0045 database repositories.

Certificate Administration

Full certificate administration is supported (transaction CSADMIN, tab page Certificates).

In transaction OAC0, set up a repository and choose Environment ® CS Admin to go to transaction CSADMIN. You can then administrate certificates in this transaction. A dialog box appears, in which you have to enter your user and password. The client is entered automatically. From release 6.10, you have the option of specifying the client yourself. Once you make these entries, the authorization object S_TABU_DIS is used to carry out an authorization check. Both read and write authorizations are checked:

Activity 02: change
Activity 03: display

Caution

Note that these authorizations are only valid for administration commands, not for the service user mentioned above.

You can now make settings on the tab page Certificates in CSADMIN:

If you only use one SAP system, you do not have to do anything on this tab page.
You only have to send or activate certificates if you want to access database repositories on another system via HTTP. In this case, you have to specify what systems should have access.
Then, your own SAP system only has access when its own certificate is active.

Example

You are working in system A. If you want to make your own database repository accessible to another SAP system (system B), system B must send a certificate to system A. You then have to activate this certificate in your SAP system (system A).

CSADMIN supports certificate administration only for the R/3 database. It only supports read access for all other functions. A statistics function is not available.

Activities

Creating a User for Anonymous Access

Call transaction SU01.

Enter a user name, such as CMS_CS, and choose .

On the next screen, select the tab page Address and enter this user name in the Last name field.

Select the tab page Logon data and enter an initial password.

On the tab page Logon data, choose Service.

Note

This user type corresponds to the former CPIC user.

Caution

Do not assign any permissions to this user.

Choose

Store User in the SICF

Call transaction SICF.

Expand the services tree.

Double-click on the service contentserver, which is located under /default_host/sap/bc.

Make sure that the service user you created in transaction SU01 is stored under Anonymous Logon Data on the tab page Service data.

Note that setting under Language here sets the language of the Content Server error messages.

When you create this user, the standard client is also specified.

Activate the service contentserver. To do this, choose Execute, click with the right-hand mouse button on the service in question, and choose Activate service from the context menu.

Choose .

Note

Note that all services provided by SAP, as well as all newly created services, are initially inactive. Therefore, before you start working with the ICF, you have to activate the services you require. For more information on the Internet Communication Framework (ICF), see the ICF documentation under Creating an ICF Service.