Sample dynamic routing stylesheet

We can use this sample stylesheet to handle the dynamic routing of requests between MPF and IBM MobileFirst Platform Application Center. You refer to the stylesheet when you create rules to define a form-based authentication policy that generates and verifies LTPA tokens.

We provide a custom dynamic routing stylesheet when you define rule worklight-ssl-policy_verifyLTPA (see Integrate IBM WebSphere DataPower with a cluster of instances of MobileFirst Server, Table 3), and when you define rule worklight-ssl-policy_worklightSSLLogin (see Integrate IBM WebSphere DataPower with a cluster of instances of MobileFirst Server, Table 5).

<xsl:stylesheet version="1.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
  xmlns:dp="http://www.datapower.com/extensions" 
  xmlns:dpconfig="http://www.datapower.com/param/config" 
  xmlns:re="http://exslt.org/regular-expressions" 
  extension-element-prefixes="dp re dpconfig" 
  exclude-result-prefixes="dp"> 
  <xsl:param name="dpconfig:worklightBackend"/> 
  <xsl:param name="dpconfig:applicationcenterBackend"/> 
  <xsl:template match="/"> 
    <xsl:variable name="worklight" select="'worklight'"/> 
    <xsl:variable name="worklightconsole" select="'worklightconsole'"/>
    <xsl:variable name="wladmin" select="'wladmin'"/>
    <xsl:variable name="applicationcenter" select="'applicationcenter'"/> 
    <xsl:variable name="appcenterconsole" select="'appcenterconsole'"/> 
    
    <xsl:variable name="worklightBackend" select="$dpconfig:worklightBackend"/> 
    <xsl:variable name="applicationcenterBackend" select="$dpconfig:applicationcenterBackend"/> 
    <xsl:variable name="incomingURI" select="dp:variable('var://service/URI')"/> 
    <xsl:variable name="httpContentType" select="dp:http-request-header('Content-Type')"/> 
    <xsl:variable name="accessControlRequestHeaders" select="dp:http-request-header('Access-Control-Request-Headers')"/> 
    <xsl:variable name="accessControlRequestMethod" select="dp:http-request-header('Access-Control-Request-Method')"/> 
    <xsl:choose> 
      <!-- set the backend server if the url is /worklight --> 
      <xsl:when test="contains(dp:variable('var://service/URI'), $worklight) or contains(dp:variable('var://service/URI'), $worklightconsole) or contains(dp:variable('var://service/URI'), $wladmin)"> 
        <dp:set-http-request-header name="'Content-Type'" value="$httpContentType"/> 
        <dp:set-variable name="'var://service/routing-url'" value="$worklightBackend"/> 
        <dp:set-variable name="'var://service/URI'" value="$incomingURI"/> 
      </xsl:when> 
      
      
      <xsl:when test="contains(dp:variable('var://service/URI'), $applicationcenter) or contains(dp:variable('var://service/URI'), $appcenterconsole)"> 
        <dp:set-http-request-header name="'Content-Type'" value="$httpContentType"/> 
        <dp:set-http-request-header name="'Access-Control-Request-Headers'" value="$accessControlRequestHeaders"/> 
        <dp:set-http-request-header name="'Access-Control-Request-Method'" value="$accessControlRequestMethod"/> 
        <dp:set-variable name="'var://service/routing-url'" value="$applicationcenterBackend"/> 
        <dp:set-variable name="'var://service/URI'" value="$incomingURI"/> 
      </xsl:when> 
      <xsl:when test="contains(dp:variable('var://service/URI'), 'j_security_check')"> 
        <dp:set-http-request-header name="'Content-Type'" value="$httpContentType"/> 
        <dp:set-variable name="'var://service/routing-url'" value="$applicationcenterBackend"/> 
        <dp:set-variable name="'var://service/URI'" value="'/appcenterconsole/login/j_security_check'"/> 
      </xsl:when> 
      <xsl:otherwise> 
        <xsl:message dp:type="all" dp:priority="error"> No matching url found. </xsl:message> 
      </xsl:otherwise> 
    </xsl:choose> 
    <xsl:value-of select="."/> 
  </xsl:template> 
</xsl:stylesheet>

Parent topic: Integrate IBM WebSphere DataPower with a cluster of instances of MobileFirst Server