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//
// Verify that the VALIDATE_NEVER and LOAD_FROM_CACHE flags override
// heuristic query freshness as defined in RFC 2616 section 13.9
//
Cu.import("resource://testing-common/httpd.js");
Cu.import("resource://gre/modules/NetUtil.jsm");
var httpserver = new HttpServer();
var index = 0;
var tests = [
{url: "/freshness?a", server: "0", expected: "0"},
{url: "/freshness?a", server: "1", expected: "1"},
// Setting the VALIDATE_NEVER flag should grab entry from cache
{url: "/freshness?a", server: "2", expected: "1",
flags: Components.interfaces.nsIRequest.VALIDATE_NEVER },
// Finally, check that request is validated with no flags set
{url: "/freshness?a", server: "99", expected: "99"},
{url: "/freshness?b", server: "0", expected: "0"},
{url: "/freshness?b", server: "1", expected: "1"},
// Setting the LOAD_FROM_CACHE flag also grab the entry from cache
{url: "/freshness?b", server: "2", expected: "1",
flags: Components.interfaces.nsIRequest.LOAD_FROM_CACHE },
// Finally, check that request is validated with no flags set
{url: "/freshness?b", server: "99", expected: "99"},
];
function logit(i, data) {
dump(tests[i].url + "\t requested [" + tests[i].server + "]" +
" got [" + data + "] expected [" + tests[i].expected + "]");
if (tests[i].responseheader)
dump("\t[" + tests[i].responseheader + "]");
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";
httpChan.setRequestHeader("x-request", value, false);
return httpChan;
}
function triggerNextTest() {
var test = tests[index];
var channel = setupChannel(test.url, test.server);
if (test.flags) channel.loadFlags = test.flags;
channel.asyncOpen2(new ChannelListener(checkValueAndTrigger, null));
}
function checkValueAndTrigger(request, data, ctx) {
logit(index, data);
do_check_eq(tests[index].expected, data);
if (index < tests.length-1) {
index++;
// this call happens in onStopRequest from the channel, and opening a
// new channel to the same url here is no good idea... post it instead
do_timeout(1, triggerNextTest);
} else {
httpserver.stop(do_test_finished);
}
}
function run_test() {
httpserver.registerPathHandler("/freshness", 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);
response.setHeader("Date", getDateString(0), false);
response.setHeader("Cache-Control", "max-age=0", false);
var header = tests[index].responseheader;
if (header == null) {
response.setHeader("Last-Modified", getDateString(-1), false);
} else {
var splitHdr = header.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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