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+//
+// This script emulates the test called "Freshness"
+// by Mark Nottingham, located at
+//
+// http://mnot.net/javascript/xmlhttprequest/cache.html
+//
+// The issue with Mr. Nottinghams page is that the server
+// always seems to send an Expires-header in the response,
+// breaking the finer details of the test. This script has
+// full control of response-headers, however, and can perform
+// the intended testing plus some extra stuff.
+//
+// Please see RFC 2616 section 13.2.1 6th paragraph for the
+// definition of "explicit expiration time" being used here.
+
+"use strict";
+
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+
+var httpserver = new HttpServer();
+var index = 0;
+var tests = [
+ { url: "/freshness", server: "0", expected: "0" },
+ { url: "/freshness", server: "1", expected: "0" }, // cached
+
+ // RFC 2616 section 13.9 2nd paragraph says not to heuristically cache
+ // querystring, but we allow it to maintain web compat
+ { url: "/freshness?a", server: "2", expected: "2" },
+ { url: "/freshness?a", server: "3", expected: "2" },
+
+ // explicit expiration dates in the future should be cached
+ {
+ url: "/freshness?b",
+ server: "4",
+ expected: "4",
+ responseheader: "Expires: " + getDateString(1),
+ },
+ { url: "/freshness?b", server: "5", expected: "4" }, // cached due to Expires
+
+ {
+ url: "/freshness?c",
+ server: "6",
+ expected: "6",
+ responseheader: "Cache-Control: max-age=3600",
+ },
+ { url: "/freshness?c", server: "7", expected: "6" }, // cached due to max-age
+
+ // explicit expiration dates in the past should NOT be cached
+ {
+ url: "/freshness?d",
+ server: "8",
+ expected: "8",
+ responseheader: "Expires: " + getDateString(-1),
+ },
+ { url: "/freshness?d", server: "9", expected: "9" },
+
+ {
+ url: "/freshness?e",
+ server: "10",
+ expected: "10",
+ responseheader: "Cache-Control: max-age=0",
+ },
+ { url: "/freshness?e", server: "11", expected: "11" },
+
+ { url: "/freshness", server: "99", expected: "0" }, // cached
+];
+
+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(Ci.nsIHttpChannel);
+ httpChan.requestMethod = "GET";
+ httpChan.setRequestHeader("x-request", value, false);
+ return httpChan;
+}
+
+function triggerNextTest() {
+ var channel = setupChannel(tests[index].url, tests[index].server);
+ channel.asyncOpen(new ChannelListener(checkValueAndTrigger, null));
+}
+
+function checkValueAndTrigger(request, data, ctx) {
+ logit(index, data);
+ Assert.equal(tests[index].expected, data);
+
+ if (index < tests.length - 1) {
+ index++;
+ 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);
+
+ 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"
+ );
+}