128 lines
4.3 KiB
JavaScript
128 lines
4.3 KiB
JavaScript
//
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// This script emulates the test called "Freshness"
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// by Mark Nottingham, located at
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//
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// http://mnot.net/javascript/xmlhttprequest/cache.html
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//
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// The issue with Mr. Nottinghams page is that the server
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// always seems to send an Expires-header in the response,
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// breaking the finer details of the test. This script has
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// full control of response-headers, however, and can perform
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// the intended testing plus some extra stuff.
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//
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// Please see RFC 2616 section 13.2.1 6th paragraph for the
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// definition of "explicit expiration time" being used here.
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Cu.import("resource://testing-common/httpd.js");
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Cu.import("resource://gre/modules/NetUtil.jsm");
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var httpserver = new HttpServer();
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var index = 0;
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var tests = [
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{url: "/freshness", server: "0", expected: "0"},
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{url: "/freshness", server: "1", expected: "0"}, // cached
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// RFC 2616 section 13.9 2nd paragraph says not to heuristically cache
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// querystring, but we allow it to maintain web compat
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{url: "/freshness?a", server: "2", expected: "2"},
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{url: "/freshness?a", server: "3", expected: "2"},
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// explicit expiration dates in the future should be cached
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{url: "/freshness?b", server: "4", expected: "4",
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responseheader: "Expires: "+getDateString(1)},
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{url: "/freshness?b", server: "5", expected: "4"},// cached due to Expires
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{url: "/freshness?c", server: "6", expected: "6",
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responseheader: "Cache-Control: max-age=3600"},
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{url: "/freshness?c", server: "7", expected: "6"}, // cached due to max-age
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// explicit expiration dates in the past should NOT be cached
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{url: "/freshness?d", server: "8", expected: "8",
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responseheader: "Expires: "+getDateString(-1)},
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{url: "/freshness?d", server: "9", expected: "9"},
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{url: "/freshness?e", server: "10", expected: "10",
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responseheader: "Cache-Control: max-age=0"},
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{url: "/freshness?e", server: "11", expected: "11"},
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{url: "/freshness", server: "99", expected: "0"}, // cached
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];
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function logit(i, data) {
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dump(tests[i].url + "\t requested [" + tests[i].server + "]" +
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" got [" + data + "] expected [" + tests[i].expected + "]");
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if (tests[i].responseheader)
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dump("\t[" + tests[i].responseheader + "]");
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dump("\n");
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}
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function setupChannel(suffix, value) {
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var chan = NetUtil.newChannel({
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uri: "http://localhost:" + httpserver.identity.primaryPort + suffix,
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loadUsingSystemPrincipal: true
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});
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var httpChan = chan.QueryInterface(Components.interfaces.nsIHttpChannel);
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httpChan.requestMethod = "GET";
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httpChan.setRequestHeader("x-request", value, false);
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return httpChan;
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}
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function triggerNextTest() {
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var channel = setupChannel(tests[index].url, tests[index].server);
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channel.asyncOpen2(new ChannelListener(checkValueAndTrigger, null));
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}
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function checkValueAndTrigger(request, data, ctx) {
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logit(index, data);
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do_check_eq(tests[index].expected, data);
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if (index < tests.length-1) {
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index++;
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triggerNextTest();
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} else {
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httpserver.stop(do_test_finished);
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}
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}
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function run_test() {
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httpserver.registerPathHandler("/freshness", handler);
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httpserver.start(-1);
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// clear cache
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evict_cache_entries();
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triggerNextTest();
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do_test_pending();
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}
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function handler(metadata, response) {
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var body = metadata.getHeader("x-request");
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response.setHeader("Content-Type", "text/plain", false);
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response.setHeader("Date", getDateString(0), false);
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var header = tests[index].responseheader;
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if (header == null) {
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response.setHeader("Last-Modified", getDateString(-1), false);
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} else {
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var splitHdr = header.split(": ");
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response.setHeader(splitHdr[0], splitHdr[1], false);
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}
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response.setStatusLine(metadata.httpVersion, 200, "OK");
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response.bodyOutputStream.write(body, body.length);
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}
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function getDateString(yearDelta) {
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var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
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'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
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var days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
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var d = new Date();
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return days[d.getUTCDay()] + ", " +
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d.getUTCDate() + " " +
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months[d.getUTCMonth()] + " " +
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(d.getUTCFullYear() + yearDelta) + " " +
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d.getUTCHours() + ":" + d.getUTCMinutes() +":" +
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d.getUTCSeconds() + " UTC";
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}
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