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<p class="MsoNormal"><span style="color:#1F497D">> </span>The true problem lies in the method that joomla utilizes the same php session cookie for anonymous users and logged in users. The reasoning behind<span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">> </span>this is so joomla can reduce the risk of session hijacking and whatnot , which makes sense ( I guess).<span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">This sounds a bit like what OpenCMS does. It sets a JSESSION-cookie no matter what you do or who you are, and it's never used. If you log in, that same JSESSION-cookie is suddenly very relevant.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I got around it by always discarding the backend's SetCookie
<b>unless</b> it was setting it from a login page. That way anonymous users would never get the cookie set until they logged in, and then it would be there for the rest of their session (causing Varnish to pass everything to the backend). Even if they logged
out again - that could probably be fixed but I didn't consider it a problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">In vcl_fetch<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas;color:#1F497D">if (!req.url ~ "/system/loginpage") {<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas;color:#1F497D"> unset beresp.SetCookie;<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Consolas;color:#1F497D">}<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Above is just to illustrate the principle.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Lars<o:p></o:p></span></p>
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