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Gregor,
On 5/6/2009 2:56 PM, Gregor Schneider wrote:
> I've suggested a patch to issues.apache.org which might be helpful if
> Sid wants to implement his own Valve.
>
> My patch is a new valve, which diverts the call to a pre-defined URL
> if j_security_check is called (I had to circumvent the fact that after
> j_security_check Tomcat is always forwarding to the last request being
> stored - that doesn't work when dealing i.e. with frames.
I'm confused about some of your code (please forgive any formatting
problems):
> + if (started) {
> +
> + [SNIPPED debug statements]
> +
> + if (aRequest.getRequestURI().startsWith(protectedPath)
> + &&
> !aRequest.getRequestURI().startsWith(redirectAfterAuth)
> + && !aRequest.getRequestURI().startsWith(
> + "/j_security_check",
> 10)) {
> + if (aRequest.getAuthType() == null) {
> + aRequest.getSession().invalidate();
> +
> aResponse.sendRedirect(redirectAfterAuth);
> + } else {
> + if (nextValve != null) {
> + nextValve.invoke(aRequest,
> aResponse);
> + }
> + }
> + } else {
> + if (nextValve != null) {
> + nextValve.invoke(aRequest, aResponse);
> + }
> + }
> + } else {
> + log.debug("LoginValve starting");
> + if (nextValve != null) {
> + getNext().invoke(aRequest, aResponse);
> + }
> + }
A few questions:
1. Why can't the "redirectAfterAuth" path be within the protected space?
2. Why do you check to see if the request URI /startsWith/ the
redirectAfterAuth instead of being equal to it?
3. Why are you checking to see if characters 10 - 16 of the request URI
are "y_check". Why not check for the whole "j_security_check" string?
Why not check the /end/ of the request URI for j_security_check,
since the URI for j_security_check is not required to be
/j_security_check but pretty much */j_security_check?
4. Why are killing the session if the authtype is null?
5. Why does your valve pass-through any requests before the component
has "started"? Is there a valid use case where NOT performing these
checks and redirects is appropriate?
It appears that your valve does nothing but murder the session and
redirect the user if authtype=null and you are requesting a resource
from a particular URI space. This does not seem particularly useful.
Maybe I'm missing something subtle.
- -chris
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