Live Data Connection to SAP HANA Using a Direct Connection and SSO

You must configure your on-premise SAP HANA system in order to support SSO for live data connections that use the direct connection type.

Prerequisites

Caution

As of Google Chrome version 80, Chrome restricts cookies to first-party access by default, and requires you to explicitly mark cookies for access in third-party, or cross-site, contexts.

To ensure that Chrome and other browsers allow cross-site access to your SAP on-premise data source cookies from SAP Analytics Cloud, you must configure your SAP on-premise data source to issue cookies with specific attributes. Without these settings, user authentication to your live data connections will fail, and Story visualizations based on these connections will not render.

For details, see SameSite Cookie Configuration for Live Data Connections.

You must use the same Identity Provider (IdP) for SAP Analytics Cloud and SAP HANA. For more information on setting up your identity provider in SAP Analytics Cloud, see Enabling a Custom SAML Identity Provider.
If end users will access the live data connection from outside of your corporate network, ensure that the SAP Information Access (InA) service (/sap/bc/ina/service/v2) on your SAP HANA server is exposed to browser users directly.
Ensure that the InA package (/sap/bc/ina/service/v2) or a higher-level package is configured for SAML authentication using the same identity provider URL as your SAP Analytics Cloud tenant. For details, see the SAP HANA XS Classic Configuration Parameters.
Ensure the sap.bc.ina.service.v2.userRole::INA_USER role is assigned to all users who will use the live connection and ensure those users are SAML configured. This role is required in addition to the usual roles and authorizations that are granted to users for data access purposes.
Ensure that your SAP HANA XS server is configured for HTTPS (SSL) with a signed certificate, and that you know which port it is using for HTTPS requests. For details, see Maintaining HTTP Access to SAP HANA and SAP Knowledge Base Article 2502174.

Note

For SAP HANA version 1.00.112.04 and above, users require both the INA_USER role, and additional object rights. The SAP HANA administrator must grant users SELECT privileges on all view items in the _SYS_BIC schema that users should have access to. For more information, see SAP Knowledge Base Article 2353833.

Note

For information on supported versions of SAP HANA, see System Requirements and Technical Prerequisites.

Procedure

Configure Cross-Origin Resource Sharing (CORS) support on your SAP HANA system.
You must ensure that the HTTP responses from the InA service to users' web browsers include CORS headers.
1. Log on to your SAP HANA XS Admin page (/sap/hana/xs/admin) as the System user or a user assigned to the following roles: sap.hana.xs.admin.roles::RuntimeConfAdministrator and sap.hana.xs.admin.roles::SAMLViewer.
2. Go to the XS Artifact Administration panel and navigate to sap.bc.ina.service.v2.
3. Select the sap.bc.ina.service.v2 package, switch to the CORS panel, and use the following instructions to edit your CORS configuration:
  1. Select Enable Cross Origin Resource Sharing.
  2. Add your SAP Analytics Cloud host to Allowed Origins. For example, https://<Customer-Prefix>.<Data-Center>.sapbusinessobjects.cloud.
    Note
    
    More than one URL can be added to the allowOrigin variable. For more information on CORS options, see Application-Access File Keyword Options.
  3. If single sign-on (SSO) is used, add the IdP host to Allowed Origins.
  4. Add the following to Allowed Headers:
    
    accept
    
    authorization
    
    content-type
    
    x-csrf-token
    
    x-request-with
    
    x-sap-cid
    
    accept-language
  5. Add the following to Exposed Headers: x-csrf-token.
  6. Select the following Allowed Methods: GET, HEAD, POST, OPTIONS.
4. Save your changes.
5. Enable logout using your SSO credentials.
  1. Repeat step 1c and 1d for the sap.hana.xs.formLogin package.
Deploy the custom web content to your SAP HANA server.
To enable SSO when using a direct connection, you must deploy some custom web content to your SAP HANA server. This web content is what will appear briefly to users once per session when they first create a live data connection to your SAP HANA system, or when they refresh charts or tables against that live data connection.
1. Log on to your SAP HANA server's Web IDE at https://<xs-host:port>/sap/hana/ide/editor/ with the system user credentials.
  Replace <xs-host:port> with your SAP HANA XS server host and port.
2. Navigate to sap.bc.ina.service.v2.
3. Right-click the v2 package, and select New Package.
4. In Package Name enter cors and click Create.
5. Right-click the cors package and select New File.
6. Enter auth.html and click Create.
7. Open auth.html, and add the following code:
```
<html>
  <script type="text/javascript">
    open(location, '_self').close();
  </script>
</html>
```
8. Save auth.html.
9. Create another file under the cors package, and name it .xsaccess.
10. Open .xsaccess, and add the following code:
```
{"cache_control" : "no-cache, no-store"}
```
11. Save .xsaccess.
12. Right-click the cors package, and click Activate All.
13. In a new browser tab, go to the following URL: https://<xs-host:port>/sap/bc/ina/service/v2/cors/auth.html.
If the html page is configured correctly, the page will load and close automatically.
Note
You will need to repeat the configuration in step 2 after every SAP HANA or SAP EPM library upgrade.
Increase the session timeout configuration parameters in SAP HANA XS server.

To do this, you will need to increase the sessiontimeout parameter in the httpserver section of the xsengine.ini file. For example, if you change the parameter to 43200, the session will be active for 12 hours.

For more information, see the SAP HANA XS Classic Configuration Parameters.
Verify end-users' web browser configuration and access.
Your end users' web browsers must be configured to:
- Allow pop-up windows from the SAP Analytics Cloud domain: [*.]sapanalytics.cloud.
- Allow 3rd party cookies from the SAP HANA server's domain. For example, in Internet Explorer 11, go to Internet Options Security Trusted Sites, add your domain name, then select Enable Protected Mode.
Add a remote system to SAP Analytics Cloud:
1. Go to (Main Menu) Connection Connections (Add Connection)
  
  The Select a data source dialog will appear.
2. Expand Connect to Live Data and select SAP HANA.
3. In the dialog, enter a name and description for your connection.
  The connection name cannot be changed later.
4. Set the connection type to Direct.
5. Add your SAP HANA host name, and HTTPS port.
6. (Optional) Choose a Default Language from the list.
  
  This language will always be used for this connection and cannot be changed by users without administrator privileges.
  Note
  You must know which languages are installed on your SAP HANA system before adding a language code. If the language code you enter is invalid, SAP Analytics Cloud will default to the language specified by your system metadata.
7. Under Authentication Method select SAML Single Sign On.
  
  Note
  To enable single sign-on for the mobile app, see SAP Cloud Connector-based Mobile Single Sign-On.
8. Select OK.
  
  Note
  After creating a connection to a remote system and before creating a model from a remote system, you must log off and log on to SAP Analytics Cloud again.
Note

Select the Enable model metadata generation option in Advanced Features if you want to access Smart Insights on the models in your connection. For details on how to generate model metadata see Manually Generating Model Metadata on a Live SAP HANA Model. To learn more about Smart Insights, see Smart Insights.

Results

The connection is saved.

Note

The connection is not tested until you create a model. For more information, see Creating a Model from a Live Data Connection.