Stripping-out-select-querystring-Attribut/Wert-Paare, damit der Lack wird nicht variieren, Sie den cache, indem Sie

Gibt es etwas falsch mit der RegEx.

Ich habe die RegExes in beiden regsub-Aufrufe:

sub normalize_req_url {
    # Clean up root URL
    if (req.url ~ "^/(?:\?.*)?$") {
        set req.url = "/";
    }

    # Strip out Google Analytics campaign variables
    # They are only needed by the javascript running on the page
    # utm_source, utm_medium, utm_campaign, gclid, ...
    if (req.url ~ "(\?|&)(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|mr:[A-z]+)=") {
        set req.url = regsuball(req.url, "(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|mr:[A-z]+)=[%\._A-z0-9-]+&?", "");
    }
    set req.url = regsub(req.url, "(\?&|\?|&)$", "");
}

Die erste änderung ist der Teil "[%._A-z0-9-]", weil die dash funktionierte wie ein Bereich symbol, deshalb habe ich es verschoben zu Ende, und der Punkt sollte maskiert werden.

Die zweite änderung ist das nicht nur entfernen Sie ein Fragezeichen in der verbleibenden URL, sondern auch ein kaufmännisches und-Zeichen oder Fragezeichen und das kaufmännische und-Zeichen.

InformationsquelleAutor kipusoep

Ich verbessert runamok Antwort ein bisschen durch hinzufügen von Unterstützung für leere Parameter und Sortierung die restlichen, hier ist eine komplette vtc-Datei, die ich implementiert, um zu überprüfen Richtigkeit.

varnishtest "Test for URL normalization - Varnish 4"

server s1 {
  rxreq
  txresp -hdr "Backend: up" -body "Some content"
} -repeat 11 -start

varnish v1 -vcl+backend {
  import std;

  sub vcl_recv {
    # Strip out marketing variables. They are only needed by
    # the javascript running on the page.
    if (req.url ~ "(\?|&)(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|mr:[A-z]+)(=|&|$)") {
      # Process params with value.
      set req.url = regsuball(req.url, "(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|mr:[A-z]+)=[%.\-_A-z0-9]+&?", "");
      # Process params without value.
      set req.url = regsuball(req.url, "(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|mr:[A-z]+)=?(&|$)", "");
    }
    # Remove trailing '?', '?&'
    set req.url = regsub(req.url, "(\?&?)$", "");
    # Sort query params, also removes trailing '&'
    set req.url = std.querysort(req.url);
  }

  sub vcl_deliver {
    set resp.http.X-Normalized-URL = req.url;
  }
} -start

client c1 {
  # Basic, no params.
  txreq -url "/test/some-url"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # One blacklisted param.
  txreq -url "/test/some-url?utm_campaign=1"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # One blacklisted param, without value.
  txreq -url "/test/some-url?utm_campaign"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Two blacklisted params.
  txreq -url "/test/some-url?utm_campaign=1&origin=hpg"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Two blacklisted params, one without value
  txreq -url "/test/some-url?utm_campaign&origin=123-abc%20"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Two blacklisted params, both without value
  txreq -url "/test/some-url?utm_campaign&origin="
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Three blacklisted params.
  txreq -url "/test/some-url?utm_campaign=ABC&origin=hpg&siteurl=br2"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Three blacklisted params, two without value
  txreq -url "/test/some-url?utm_campaign=1&origin=&siteurl"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url"

  # Three blacklisted params; one param to keep, with space encoded as +.
  txreq -url "/test/some-url?qss=hello+one&utm_campaign=some-value&origin=hpg&siteurl=br2"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url?qss=hello+one"

  # Three blacklisted params; one param to keep, with space encoded as %20, passed in-between blacklisted ones.
  txreq -url "/test/some-url?utm_campaign=1&qss=hello%20one&origin=hpg&siteurl=br2"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url?qss=hello%20one"

  # Three blacklisted params; three params to keep.
  txreq -url "/test/some-url?utm_campaign=a-value&qss=hello+one&origin=hpg&siteurl=br2&keep2=abc&keep1"
  rxresp
  expect resp.http.X-Normalized-URL == "/test/some-url?keep1&keep2=abc&qss=hello+one"
} -run

varnish v1 -expect client_req == 11

InformationsquelleAutor Jedihe

Eine Kopie von runamok, aber ich habe + statt %20 in meinem params, so habe ich Hinzugefügt, um meine regex

sub vcl_recv {
    # strip out certain querystring params that varnish should not vary cache by
    call normalize_req_url;
    # snip a bunch of other code
}
sub normalize_req_url {
    # Strip out Google Analytics campaign variables.
    # I allso stribe facebook local that are use for facebook javascript.
    # They are only neededby the javascript running on the page
    # utm_source, utm_medium, utm_campaign, gclid, ...
    if(req.url ~ "(\?|&)(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|fb_local|mr:[A-z]+)=") {
        set req.url = regsuball(req.url, "(gclid|cx|ie|cof|siteurl|zanpid|origin|utm_[a-z]+|fb_local|mr:[A-z]+)=[%.+-_A-z0-9]+&?", "");
    }
    set req.url = regsub(req.url, "(\?&?)$", "");
}

InformationsquelleAutor Evaldnet