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You can enable the following configurations for applications:

Enable SaaS mode for web applications

You can enable SaaS mode for your web applications by configuring the web.xml file relevant to each web application. Further, you can share the web application among multiple tenants from this configuration.

To enable SaaS mode for a web application:

  1. Open the web.xml file of your web application from the archive directory.
  2. The carbon.enable.saas parameter should be added to enable SaaS mode. The value you give for this parameter will depend on the use case. For example, consider that a tenant wants to share its web application with wso2.com, foo.com and bar.com. You can change the parameter value according to the use case as shown below.

    If all tenants can access this application, enter the following:

    <context-param>
    <param-name>carbon.enable.saas</param-name> 
    <param-value>*</param-value>
    </context-param>

    If all tenants except foo.com and bar.com can access this application, enter the following:

    <context-param>
    <param-name>carbon.enable.saas</param-name> 
    <param-value>*, !foo.com,!bar.com</param-value>
    </context-param>

    If only foo.com and bar.com (all users) can access this application, enter the following:

    <context-param> 
    <param-name>carbon.enable.saas</param-name> 
    <param-value>foo.com,bar.com</param-value>
    </context-param>

    If only Sam and admin in foo.com tenant and all users in bar.com tenant can access this application, enter the following: 

    <context-param>
    <param-name>carbon.enable.saas</param-name> 
    <param-value>foo.com;users=Sam,admin,bar.com</param-value>
    </context-param>

Enabling CORS for web applications

If required, you can enable CORS (cross origin resource sharing) for web applications by adding the CORS filter to the web.xml file as shown in the following example. 

<filter>
    <filter-name>CorsFilter</filter-name>
    <filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
    <init-param>
        <param-name>cors.allowed.origins</param-name>
        <param-value>*</param-value>
    </init-param>
    <init-param>
        <param-name>cors.allowed.methods</param-name>
        <param-value>GET,POST,HEAD,OPTIONS,PUT,DELETE,PATCH</param-value>
    </init-param>
</filter>
<filter-mapping>
    <filter-name>CorsFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

The parameters used in this example are as follows:  

  • The cors.allowed.origins parameter is used to specify the web domains that should be allowed to share resources with the web application. The domain names should be specified as parameter values. If the parameter value is set to '*' as shown above, or if this parameter is not used at all, resource sharing will be allowed for all origins (all web domains). 
  • The cors.allowed.methods parameter is used to specify the type of requests for which CORS should be enabled. You can list the allowed methods as parameter values. 
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