Re: Changing url rewriting behaviour (';jsessionid')

[Daniel Henrique Alves Lima]

        First of all: Thanks (Christopher, Andre, Bill and everybody) !

        The complete solution is compound of 3 parts:

        1. The Valve to process &jsessionid (just a piece of the source code)

if (!request.isRequestedSessionIdFromCookie()) {
        String jsessionid = request.getParameter("jsessionid");
        if (jsessionid != null && 
                request.getRequestedSessionId() == null) {
                request.setRequestedSessionId(jsessionid);
                request.setRequestedSessionURL(true);
        }
}

Valve nextValve = getNext();
if (nextValve != null) {
        nextValve.invoke(request, response);
}

        I've configured this Valve in Tomcat specific webapp deployment 
descriptor (context.xml)


        2. The Servlet Filter to overwrite URL encoding (just a piece)

HttpServletRequest request = (HttpServletRequest) aRequest;

String jsessionid = request.getParameter("jsessionid");
String sessionId = request.getRequestedSessionId();
if (request.isRequestedSessionIdFromURL() && jsessionid != null
        && jsessionid.equals(sessionId)) {
        aResponse = new HttpServletResponseWrapper((HttpServletResponse) 
aResponse) {

        @Override
        public String encodeRedirectURL(String url) {
                return this.encodeURLImpl(super.encodeRedirectURL(url));
        }
                                
        private String encodeURLImpl(String url) {
                StringBuilder newURL = new StringBuilder(url);
                final String searchString = ";jsessionid=";
                int i = newURL.indexOf(searchString);
                if (i >= 0) {
                        int j = newURL.indexOf("?", i);
                        newURL.replace(i, i + 1, "?");
                        if (j >= 0) {
                                newURL.replace(j, j + 1, "&");
                        }
                }

                return newURL.toString();
        }


        3. Tag libraries to handle url encoding properly

        This was the easy part. We're using the grandpa of all Java web MVC 
frameworks: Struts 1.x :-)
        So i've just used 'html:' tags and the magic is done !


        Now OO is happy and i (really) need to sleep.


        Thanks !





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