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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
Cu.import("resource://testing-common/httpd.js");
Cu.import("resource://gre/modules/NetUtil.jsm");
const BUGID = "203271";
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: function(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(Components.interfaces.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.asyncOpen2(new ChannelListener(checkValueAndTrigger, channel));
}
function checkValueAndTrigger(request, data, ctx) {
logit(index, data, ctx);
do_check_eq(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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