Question

我想仅为登录用户启用esi。注销用户应该通过缓存整页提供。

我在下面写了vcl。问题在于，一旦缓存登录页面或登出页面，它就会向所有人显示相同内容。

vcl_recv {
      if (req.http.Cookie ~ "loggedIn") {
                if (req.url ~ "^/esi")
                {
                        return (pass);
                }
                if (req.url ~ "page"){
                        return (lookup);
                }
                return (pipe);
        }
        return (lookup);
}
sub vcl_pipe {
        set bereq.http.connection = "close";
}
sub vcl_fetch {
               if (req.url ~ "page"){
                        set beresp.do_esi = true;
                        set beresp.ttl = 1d;
                        return (deliver);
                }
                set beresp.ttl = 1d;
                return (deliver);
}

一个解决方案似乎是在url和LoggedIn cookie的组合上使用vcl_hash，它有两个值0或1.请建议。

Answer 1

首先，您必须检测cookie并获取其值
然后你必须在vcl_recv＆amp;中传递请求。 vcl_fetch。当登录的cookie存在时。
您可以通过两种方式检查此项，例如检查Cookie值或检查已登录的Cookie已设置

我使用下面的cookie值给出答案

sub identify_cookie{
    #Call cookie based detection method in vcl_recv
    if (req.http.cookie ~ "loggedIn=") {
        set req.http.loggedIn = regsub(req.http.cookie, "(.*?)(loggedIn=)([^;]*)(.*)$", "\3");
    }
}

sub vcl_recv {
   call identify_cookie; #Used to get identify cookie and get its value
   if(req.http.loggedIn && req.url ~ "^/esi"){
    #used to get value using cookie value
    return (pass);
   }
   if (req.url !~ "wp-(login|admin)" && req.http.Cookie !~ "loggedIn"){
     #remove all the request cookie(s) except loggedIn and check for wordpress admin
     unset req.http.Cookie;
   }
}

sub vcl_fetch {
    if(req.http.loggedIn && req.url ~ "^/esi") {
       return (hit_for_pass);
    }
    if (req.url !~ "wp-(login|admin)" && beresp.http.set-Cookie !~ "loggedIn"){
         #remove all the response cookie(s) except loggedIn and check for wordpress admin
        unset beresp.http.Set-Cookie;
    }
}

varnish - vcl规则，仅为登录用户启用esi

1 个答案: