---- Igor Cicimov <icici...@gmail.com> wrote: > On Mon, Dec 10, 2012 at 11:02 AM, <oh...@cox.net> wrote: > > > > > ---- Igor Cicimov <icici...@gmail.com> wrote: > > > On Mon, Dec 10, 2012 at 9:02 AM, <oh...@cox.net> wrote: > > > > > > > > > > > ---- Igor Cicimov <icici...@gmail.com> wrote: > > > > > On Mon, Dec 10, 2012 at 7:19 AM, <oh...@cox.net> wrote: > > > > > > > > > > > Hi, > > > > > > > > > > > > We are trying to have an Apache (acting as a proxy) conditionally > > > > > > strip/remove a cookie from the incoming request, before it proxies > > the > > > > > > request. > > > > > > > > > > > > The condition is that, on the incoming request: > > > > > > > > > > > > - there is a specific HTTP header, MYHEADER, with a value of > > > > > > "MYHEADERVALUE", and > > > > > > - the root of the request URL's hostname (e.g., if hostname in the > > > > request > > > > > > URL is "www.foo.com", then root is ".foo.com") matches a certain > > > > string, > > > > > > e.g., ".whatever.com" > > > > > > > > > > > > If the conditions above are true, then we want to remove a cookie > > named > > > > > > "MYCOOKIE" from the incoming request, before forwarding the request > > > > onto > > > > > > the proxied host. > > > > > > > > > > > > I think that if the conditions match, according to this: > > > > > > > > > > > > > > > > > > http://stackoverflow.com/questions/1798431/how-to-remove-a-cookie-in-apache > > > > > > > > > > > > something like: > > > > > > > > > > > > RequestHeader add Cookie "MYCOOKIE='';expires='SOME_PAST_DATE'; > > > > > > Path=COOKIE_PATH" > > > > > > > > > > > > would remove the cookie, but I'm not sure how to construct the > > > > > > expression/expr that says something like this: > > > > > > > > > > > > <If hostname_root==whatever.com && MYHEADER=<some_string>> > > > > > > RequestHeader add Cookie > > "MYCOOKIE=';expires='SOME_PAST_DATE'; > > > > > > Path=COOKIE_PATH" > > > > > > </If> > > > > > > > > > > > > Also, I'm not sure what that "SOME_PAST_DATE" should be. > > > > > > > > > > > > Can anyone here tell me? > > > > > > > > > > > > Thanks, > > > > > > Jim > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > > > > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > > > > > > For additional commands, e-mail: users-h...@httpd.apache.org > > > > > > > > > > > > > > > > > Use SetEnvIf > > > > > > > > > > > > Igor, > > > > > > > > I think that I can use SetEnvIf to set environment variables for each > > of > > > > the two conditions, but doesn't the RequestHeader directive only take > > only > > > > a single condition, e.g., "env=condition1"? > > > > > > > > Jim > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > > > > For additional commands, e-mail: users-h...@httpd.apache.org > > > > > > > > True, so how about this ... You set the cookie if "env = condition1" > > and > > > then edit/unset/merge/ or do whatever if "env != condition2" > > > > > > Hi, > > > > Thanks for the suggestion. I guess that I'd really rather not set the > > cookie then possibly have to unset it later. That seems a little too > > convoluted. > > > > What I was trying to find out with this post is about how something like > > SetEnvIfExpr: > > > > http://httpd.apache.org/docs/trunk/mod/mod_setenvif.html#setenvifexpr > > > > That link has the word "trunk" in it which usually means "current > development version". And if you check the bread crumbs in the top of the > page you'll see > > [image: <-] <http://httpd.apache.org/docs/trunk/mod/> > Apache <http://www.apache.org/> > HTTP Server <http://httpd.apache.org/> > > Documentation <http://httpd.apache.org/docs/> > Version > 2.5<http://httpd.apache.org/docs/trunk/>> > Modules <http://httpd.apache.org/docs/trunk/mod/> > > it is a Apache 2.5 module. If you need to use this feature AND <If> tags > you need Apache 2.4 > > > > > > might be used. > > > > Apparently this SetEnvIfExpr is available in Apache 2.2.9+? > > > > That page has some examples of using SetEnvIfExpr, e.g.: > > > > SetEnvIfExpr "tolower(req('X-Sendfile')) == 'd:\images\very_big.iso')" > > iso_delivered > > > > plus, it links to this other page on expressions in Apache: > > > > http://httpd.apache.org/docs/trunk/expr.html > > > > which has examples of expressions: > > > > # Compare the host name to example.com and redirect to www.example.com if > > it matches > > <If "%{HTTP_HOST} == 'example.com'"> > > Redirect permanent / http://www.example.com > > </If> > > > > So I was thinking I could use something like that, but I'm not familiar > > with these "expressions", so I was hoping that someone here could tell me > > (or point the way to) the expression that I'd need to do what I described > > in my original post. > > > > Also, BTW, I'm having problems with what was suggested in the message > > thread on Stackoverflow.com in my original post. I tried the suggested > > RequestHeader, to try to remove a cookie in an incoming request, but it's > > not working. Rather it looks like it just replaces the entire "Cookie:" > > header altogether. FYI, for this testing, I have my Apache proxying > > (ProxyPass/ProxyPassReverse) a Tomcat instance. > > > > Thanks, > > Jim > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > > For additional commands, e-mail: users-h...@httpd.apache.org > > > >
Hi Igor, I realized that a little while ago, and just built 2.4.3, and yes, the <If> works, or at least it doesn't throw and error with that. Any idea on what the expr should look like to do what I was asking about? I'm still trying to figure that out. If anyone knows, or maybe give me some hints, I'd appreciate that. Thanks, Jim --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org
