Wie rekonstruiere ich das Anforderungskekse in Lack VCL?

Question

Ich bin mir nicht sicher, ob ich die richtige Frage stelle. Ich habe Lack, der vor einem Standort liegt, der Zugang zu zahlreichen Keksen hat. Am wichtigsten sind Creds Cookie. Was ich tue, ist, alle Kekse zu entfernen, die ich nicht brauche, und prüfe dann, ob ein Keks übrig ist. Wenn ja, bedeutet dies, dass wir Lack umgehen, sonst geben wir das Cache -Objekt zurück.

  # Remove all cookies that Drupal doesn't need to know about. We explicitly 
  # list the ones that Drupal does need, the SESS , NO_CACHE and credential cookie namely  auth 
  #. If, after running this code we find that either of these two cookies remains, we 
  # will pass as the page cannot be cached.
  if (req.http.Cookie) {
    # 1. Append a semi-colon to the front of the cookie string.
    # 2. Remove all spaces that appear after semi-colons.
    # 3. Match the cookies we want to keep, adding the space we removed 
    #    previously back. (\1) is first matching group in the regsuball.
    # 4. Remove all other cookies, identifying them by the fact that they have
    #    no space after the preceding semi-colon.
    # 5. Remove all spaces and semi-colons from the beginning and end of the 
    #    cookie string. 
    set req.http.Cookie = ";" + req.http.Cookie;
    set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";");    
    set req.http.Cookie = regsuball(req.http.Cookie, ";(SESS[a-z0-9]+|SSESS[a-z0-9]+|NO_CACHE+|auth)=", "; \1=");
    set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", "");
    set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+|[; ]+$", "");

    if (req.http.Cookie == "") {
      # If there are no remaining cookies, remove the cookie header. If there
      # aren't any cookie headers, Varnish's default behavior will be to cache
      # the page.
      unset req.http.Cookie;
    }
    else {
      # If there is any cookies left (a session or NO_CACHE cookie), do not
      # cache the page. Pass it on to Apache directly.
      return (pass);
    }
  }
}

Das funktioniert gut. Ich bekomme einen Cache -Miss, wenn auth Cookie ist da drin und ein Treffer ansonsten. Aber selbst wenn es sich um Fehlern handelt, scheint es, Gibt es eine Möglichkeit, Lack zu leiten, um den ursprünglichen Cooke zu bestehen?

Vielleicht so etwas wie

else {
  # If there is any cookies left (a session or NO_CACHE cookie), do not
  # cache the page. Pass it on to Apache directly.
  # And set the cookie to its original form ??
  return (pass);
}

Answer 1

Sie können den Original -Cookie kopieren, bevor Sie es analysieren und wiederherstellen else Aussage, etwas wie:

  # ....
  # Store original cookie in other headder
  set req.http.X-Cookie = req.http.Cookie;
  if (req.http.Cookie) {
    # ... 
    set req.http.Cookie = ";" + req.http.Cookie;
    set req.http.Cookie = regsuball(req.http.Cookie, "; +", ";");    
    set req.http.Cookie = regsuball(req.http.Cookie, ";(SESS[a-z0-9]+|SSESS[a-z0-9]+|NO_CACHE+|auth)=", "; \1=");
    set req.http.Cookie = regsuball(req.http.Cookie, ";[^ ][^;]*", "");
    set req.http.Cookie = regsuball(req.http.Cookie, "^[; ]+|[; ]+$", "");

    if (req.http.Cookie == "") {
      # ....
      # Delete cookie copy
      unset req.http.X-Cookie;
      unset req.http.Cookie;
    }
    else {
      # ...
      # Restore original cookie and delete the copy
      set req.http.Cookie = req.http.X-Cookie;
      unset req.http.X-Cookie;
      return (pass);
    }
  }
}