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POHow do I do load time weaving of JSP's with AspectJ 1.6 and Tomcat 6?
 

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  1. POHow do I do load time weaving of JSP's with AspectJ 1.6 and Tomcat 6?
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    <p>Here is my situation:</p> <p>I have a web application in Eclipse. At the moment it is an AspectJ web application. </p> <p>I have an aspect in my "src" folder called <code>JSPCSRFTokenInjection.aj</code> that has pointcuts to capture the <code>JspWriter.write</code> method and some other stuff. It looks like so:</p> <pre><code>package com.aspects; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.jsp.JspWriter; import org.apache.log4j.Logger; import com.thesis.aop.util.StopWatch; public aspect JSPCSRFTokenInjection{ Logger logger; StopWatch watch; private String currentCSRFToken = null; //Constuctor for the Aspect. I do some init of loggers and //such here. public JSPCSRFTokenInjection(){ //PropertyConfigurator.configure("log4j.properties"); logger = Logger.getLogger("csrfMitigationLogger"); logger.info("CSRF Injection Aspect Created"); watch = new StopWatch(); } //Capturing the CSRF Token from the request by intercepting the //_jspService method inside of the JSP public pointcut csrf_jspServiceIntercept(HttpServletRequest req, HttpServletResponse resp) : call(public void _jspService(HttpServletRequest, HttpServletResponse)) &amp;&amp; args(req, resp); before(HttpServletRequest req, HttpServletResponse resp) : csrf_jspServiceIntercept(req, resp){ currentCSRFToken = (String) req.getParameter("csrfSalt"); logger.info("Got CSRF Token from request: " + currentCSRFToken); } //Pointcut and advice for capturing the writing into a JSP. public pointcut csrf_captureFormWriting(String msg, JspWriter writer) : call(public void JspWriter.write(String)) &amp;&amp; args(msg) &amp;&amp; target(writer) &amp;&amp; if(msg.toLowerCase().contains("&lt;/form&gt;")); before(String msg, JspWriter writer) : csrf_captureFormWriting(msg, writer){ try{ logger.info("WRITING TO JSP"); writer.write("TEST_CSRF"); writer.write("&lt;input type='hidden' name='csrfSalt' value='" + currentCSRFToken + "'/&gt;"); } catch(Exception e){ e.printStackTrace(); } } } </code></pre> <p>I also have an <code>aop.xml</code> file in the <code>WebApp/WebContent/META-INF/</code> directory. For reference my <code>web.xml</code> file is in <code>WebApp/WebContent/WEB-INF/</code> directory .</p> <p>The <code>aop.xml</code> looks like so:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;!DOCTYPE aspectj PUBLIC "-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj /dtd/aspectj.dtd"&gt; &lt;aspectj&gt; &lt;weaver options="-showWeaveInfo -verbose -debug -Xset:weaveJavaPackages=true"&gt; &lt;!-- Weave types that are within the javax.* or org.aspectj.* packages. Also weave all types in the foo package that do not have the @NoWeave annotation. --&gt; &lt;include within="javax.*"/&gt; &lt;include within="com.*"/&gt; &lt;include within="org.*"/&gt; &lt;include within="org.aspectj.*"/&gt; &lt;/weaver&gt; &lt;aspects&gt; &lt;!-- declare two existing aspects to the weaver --&gt; &lt;aspect name="com.aspects.JSPCSRFTokenInjection"/&gt; &lt;aspect name="com.aspects.MitigateCSRFAspect"/&gt; &lt;!-- Of the set of aspects declared to the weaver use aspects matching the type pattern "com..*" for weaving. --&gt; &lt;include within="com.*"/&gt; &lt;include within="org.*"/&gt; &lt;!-- Of the set of aspects declared to the weaver do not use any aspects with the @CoolAspect annotation for weaving --&gt; &lt;/aspects&gt; &lt;/aspectj&gt; </code></pre> <p>I am also adding the <code>-javaagent:C:/aspectj1.6/lib/aspectjweaver.jar</code> to my JVM parameters in Tomcat. </p> <p>If it helps, I am using the SysDeo plugin for tomcat. Also, compile time weaving is working fine on other parts of the application, however, I am unable to weave in any of my aspects affecting JSP's.</p>
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    1. USPaul T.
    1. USbsimic
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      1. POHow do I do load time weaving of JSP's with AspectJ 1.6 and Tomcat 6?
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    1. CONot completely sure but your signature could be a little wrong, it should be `call(public void *._jspService(HttpServletRequest, HttpServletResponse)` with the wildcard to represent any type
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      1. POHow do I do load time weaving of JSP's with AspectJ 1.6 and Tomcat 6?
      1. USBiju Kunjummen
    2. COThat's true too. I figured out my real issue though, my aop.xml was in the wrong place!
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      1. USbsimic
 

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