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//
// Tests if a response with an Expires-header in the past
// and Cache-Control: max-age in the future works as
// specified in RFC 2616 section 14.9.3 by letting max-age
// take precedence
"use strict";
const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
var httpserver = new HttpServer();
var index = 0;
var tests = [
// original problem described in bug#203271
{
url: "/precedence",
server: "0",
expected: "0",
responseheader: [
"Expires: " + getDateString(-1),
"Cache-Control: max-age=3600",
],
},
{
url: "/precedence?0",
server: "0",
expected: "0",
responseheader: [
"Cache-Control: max-age=3600",
"Expires: " + getDateString(-1),
],
},
// max-age=1s, expires=1 year from now
{
url: "/precedence?1",
server: "0",
expected: "0",
responseheader: [
"Expires: " + getDateString(1),
"Cache-Control: max-age=1",
],
},
// expires=now
{
url: "/precedence?2",
server: "0",
expected: "0",
responseheader: ["Expires: " + getDateString(0)],
},
// max-age=1s
{
url: "/precedence?3",
server: "0",
expected: "0",
responseheader: ["Cache-Control: max-age=1"],
},
// The test below is the example from
//
// https://bugzilla.mozilla.org/show_bug.cgi?id=203271#c27
//
// max-age=2592000s (1 month), expires=1 year from now, date=1 year ago
{
url: "/precedence?4",
server: "0",
expected: "0",
responseheader: [
"Cache-Control: private, max-age=2592000",
"Expires: " + getDateString(+1),
],
explicitDate: getDateString(-1),
},
// The two tests below are also examples of clocks really out of synch
// max-age=1s, date=1 year from now
{
url: "/precedence?5",
server: "0",
expected: "0",
responseheader: ["Cache-Control: max-age=1"],
explicitDate: getDateString(1),
},
// max-age=60s, date=1 year from now
{
url: "/precedence?6",
server: "0",
expected: "0",
responseheader: ["Cache-Control: max-age=60"],
explicitDate: getDateString(1),
},
// this is just to get a pause of 3s to allow cache-entries to expire
{ url: "/precedence?999", server: "0", expected: "0", delay: "3000" },
// Below are the cases which actually matters
{ url: "/precedence", server: "1", expected: "0" }, // should be cached
{ url: "/precedence?0", server: "1", expected: "0" }, // should be cached
{ url: "/precedence?1", server: "1", expected: "1" }, // should have expired
{ url: "/precedence?2", server: "1", expected: "1" }, // should have expired
{ url: "/precedence?3", server: "1", expected: "1" }, // should have expired
{ url: "/precedence?4", server: "1", expected: "1" }, // should have expired
{ url: "/precedence?5", server: "1", expected: "1" }, // should have expired
{ url: "/precedence?6", server: "1", expected: "0" }, // should be cached
];
function logit(i, data, ctx) {
dump(
"requested [" +
tests[i].server +
"] " +
"got [" +
data +
"] " +
"expected [" +
tests[i].expected +
"]"
);
if (tests[i].responseheader) {
dump("\t[" + tests[i].responseheader + "]");
}
dump("\n");
// Dump all response-headers
dump("\n===================================\n");
ctx.visitResponseHeaders({
visitHeader(key, val) {
dump("\t" + key + ":" + val + "\n");
},
});
dump("===================================\n");
}
function setupChannel(suffix, value) {
var chan = NetUtil.newChannel({
uri: "http://localhost:" + httpserver.identity.primaryPort + suffix,
loadUsingSystemPrincipal: true,
});
var httpChan = chan.QueryInterface(Ci.nsIHttpChannel);
httpChan.requestMethod = "GET"; // default value, just being paranoid...
httpChan.setRequestHeader("x-request", value, false);
return httpChan;
}
function triggerNextTest() {
var channel = setupChannel(tests[index].url, tests[index].server);
channel.asyncOpen(new ChannelListener(checkValueAndTrigger, channel));
}
function checkValueAndTrigger(request, data, ctx) {
logit(index, data, ctx);
Assert.equal(tests[index].expected, data);
if (index < tests.length - 1) {
var delay = tests[index++].delay;
if (delay) {
do_timeout(delay, triggerNextTest);
} else {
triggerNextTest();
}
} else {
httpserver.stop(do_test_finished);
}
}
function run_test() {
httpserver.registerPathHandler("/precedence", handler);
httpserver.start(-1);
// clear cache
evict_cache_entries();
triggerNextTest();
do_test_pending();
}
function handler(metadata, response) {
var body = metadata.getHeader("x-request");
response.setHeader("Content-Type", "text/plain", false);
var date = tests[index].explicitDate;
if (date == undefined) {
response.setHeader("Date", getDateString(0), false);
} else {
response.setHeader("Date", date, false);
}
var header = tests[index].responseheader;
if (header == undefined) {
response.setHeader("Last-Modified", getDateString(-1), false);
} else {
for (var i = 0; i < header.length; i++) {
var splitHdr = header[i].split(": ");
response.setHeader(splitHdr[0], splitHdr[1], false);
}
}
response.setStatusLine(metadata.httpVersion, 200, "OK");
response.bodyOutputStream.write(body, body.length);
}
function getDateString(yearDelta) {
var months = [
"Jan",
"Feb",
"Mar",
"Apr",
"May",
"Jun",
"Jul",
"Aug",
"Sep",
"Oct",
"Nov",
"Dec",
];
var days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
var d = new Date();
return (
days[d.getUTCDay()] +
", " +
d.getUTCDate() +
" " +
months[d.getUTCMonth()] +
" " +
(d.getUTCFullYear() + yearDelta) +
" " +
d.getUTCHours() +
":" +
d.getUTCMinutes() +
":" +
d.getUTCSeconds() +
" UTC"
);
}
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