tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_bug468594.js (4442B)

      1 //
      2 // This script emulates the test called "Freshness"
      3 // by Mark Nottingham, located at
      4 //
      5 // http://mnot.net/javascript/xmlhttprequest/cache.html
      6 //
      7 // The issue with Mr. Nottinghams page is that the server
      8 // always seems to send an Expires-header in the response,
      9 // breaking the finer details of the test. This script has
     10 // full control of response-headers, however, and can perform
     11 // the intended testing plus some extra stuff.
     12 //
     13 // Please see RFC 2616 section 13.2.1 6th paragraph for the
     14 // definition of "explicit expiration time" being used here.
     15 
     16 "use strict";
     17 
     18 const { HttpServer } = ChromeUtils.importESModule(
     19  "resource://testing-common/httpd.sys.mjs"
     20 );
     21 
     22 var httpserver = new HttpServer();
     23 var index = 0;
     24 var tests = [
     25  { url: "/freshness", server: "0", expected: "0" },
     26  { url: "/freshness", server: "1", expected: "0" }, // cached
     27 
     28  // RFC 2616 section 13.9 2nd paragraph says not to heuristically cache
     29  // querystring, but we allow it to maintain web compat
     30  { url: "/freshness?a", server: "2", expected: "2" },
     31  { url: "/freshness?a", server: "3", expected: "2" },
     32 
     33  // explicit expiration dates in the future should be cached
     34  {
     35    url: "/freshness?b",
     36    server: "4",
     37    expected: "4",
     38    responseheader: "Expires: " + getDateString(1),
     39  },
     40  { url: "/freshness?b", server: "5", expected: "4" }, // cached due to Expires
     41 
     42  {
     43    url: "/freshness?c",
     44    server: "6",
     45    expected: "6",
     46    responseheader: "Cache-Control: max-age=3600",
     47  },
     48  { url: "/freshness?c", server: "7", expected: "6" }, // cached due to max-age
     49 
     50  // explicit expiration dates in the past should NOT be cached
     51  {
     52    url: "/freshness?d",
     53    server: "8",
     54    expected: "8",
     55    responseheader: "Expires: " + getDateString(-1),
     56  },
     57  { url: "/freshness?d", server: "9", expected: "9" },
     58 
     59  {
     60    url: "/freshness?e",
     61    server: "10",
     62    expected: "10",
     63    responseheader: "Cache-Control: max-age=0",
     64  },
     65  { url: "/freshness?e", server: "11", expected: "11" },
     66 
     67  { url: "/freshness", server: "99", expected: "0" }, // cached
     68 ];
     69 
     70 function logit(i, data) {
     71  dump(
     72    tests[i].url +
     73      "\t requested [" +
     74      tests[i].server +
     75      "]" +
     76      " got [" +
     77      data +
     78      "] expected [" +
     79      tests[i].expected +
     80      "]"
     81  );
     82  if (tests[i].responseheader) {
     83    dump("\t[" + tests[i].responseheader + "]");
     84  }
     85  dump("\n");
     86 }
     87 
     88 function setupChannel(suffix, value) {
     89  var chan = NetUtil.newChannel({
     90    uri: "http://localhost:" + httpserver.identity.primaryPort + suffix,
     91    loadUsingSystemPrincipal: true,
     92  });
     93  var httpChan = chan.QueryInterface(Ci.nsIHttpChannel);
     94  httpChan.requestMethod = "GET";
     95  httpChan.setRequestHeader("x-request", value, false);
     96  return httpChan;
     97 }
     98 
     99 function triggerNextTest() {
    100  var channel = setupChannel(tests[index].url, tests[index].server);
    101  channel.asyncOpen(new ChannelListener(checkValueAndTrigger, null));
    102 }
    103 
    104 function checkValueAndTrigger(request, data) {
    105  logit(index, data);
    106  Assert.equal(tests[index].expected, data);
    107 
    108  if (index < tests.length - 1) {
    109    index++;
    110    triggerNextTest();
    111  } else {
    112    httpserver.stop(do_test_finished);
    113  }
    114 }
    115 
    116 function run_test() {
    117  httpserver.registerPathHandler("/freshness", handler);
    118  httpserver.start(-1);
    119 
    120  // clear cache
    121  evict_cache_entries();
    122  triggerNextTest();
    123 
    124  do_test_pending();
    125 }
    126 
    127 function handler(metadata, response) {
    128  var body = metadata.getHeader("x-request");
    129  response.setHeader("Content-Type", "text/plain", false);
    130  response.setHeader("Date", getDateString(0), false);
    131 
    132  var header = tests[index].responseheader;
    133  if (header == null) {
    134    response.setHeader("Last-Modified", getDateString(-1), false);
    135  } else {
    136    var splitHdr = header.split(": ");
    137    response.setHeader(splitHdr[0], splitHdr[1], false);
    138  }
    139 
    140  response.setStatusLine(metadata.httpVersion, 200, "OK");
    141  response.bodyOutputStream.write(body, body.length);
    142 }
    143 
    144 function getDateString(yearDelta) {
    145  var months = [
    146    "Jan",
    147    "Feb",
    148    "Mar",
    149    "Apr",
    150    "May",
    151    "Jun",
    152    "Jul",
    153    "Aug",
    154    "Sep",
    155    "Oct",
    156    "Nov",
    157    "Dec",
    158  ];
    159  var days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
    160 
    161  var d = new Date();
    162  return (
    163    days[d.getUTCDay()] +
    164    ", " +
    165    d.getUTCDate() +
    166    " " +
    167    months[d.getUTCMonth()] +
    168    " " +
    169    (d.getUTCFullYear() + yearDelta) +
    170    " " +
    171    d.getUTCHours() +
    172    ":" +
    173    d.getUTCMinutes() +
    174    ":" +
    175    d.getUTCSeconds() +
    176    " UTC"
    177  );
    178 }