The Tor Browser: netwerk/test/unit/test

     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.

    16 Cu.import("resource://testing-common/httpd.js");

    18 var httpserver = new HttpServer();

    19 var index = 0;

    20 var tests = [

    21     {url: "/freshness",   server: "0", expected: "0"},

    22     {url: "/freshness",   server: "1", expected: "0"}, // cached

    24     // RFC 2616 section 13.9 2nd paragraph

    25     {url: "/freshness?a", server: "2", expected: "2"},

    26     {url: "/freshness?a", server: "3", expected: "3"},

    28     // explicit expiration dates in the future should be cached

    29     {url: "/freshness?b", server: "4", expected: "4",

    30      responseheader: "Expires: "+getDateString(1)},

    31     {url: "/freshness?b", server: "5", expected: "4"},// cached due to Expires

    33     {url: "/freshness?c", server: "6", expected: "6",

    34      responseheader: "Cache-Control: max-age=3600"},

    35     {url: "/freshness?c", server: "7", expected: "6"}, // cached due to max-age

    37     // explicit expiration dates in the past should NOT be cached

    38     {url: "/freshness?d", server: "8", expected: "8",

    39      responseheader: "Expires: "+getDateString(-1)},

    40     {url: "/freshness?d", server: "9", expected: "9"},

    42     {url: "/freshness?e", server: "10", expected: "10",

    43      responseheader: "Cache-Control: max-age=0"},

    44     {url: "/freshness?e", server: "11", expected: "11"},

    46     {url: "/freshness",   server: "99", expected: "0"}, // cached

    47 ];

    49 function logit(i, data) {

    50     dump(tests[i].url + "\t requested [" + tests[i].server + "]" +

    51          " got [" + data + "] expected [" + tests[i].expected + "]");

    52     if (tests[i].responseheader)

    53         dump("\t[" + tests[i].responseheader + "]");

    54     dump("\n");

    55 }

    57 function setupChannel(suffix, value) {

    58     var ios = Components.classes["@mozilla.org/network/io-service;1"].

    59                          getService(Ci.nsIIOService);

    60     var chan = ios.newChannel("http://localhost:" + httpserver.identity.primaryPort + suffix, "", null);

    61     var httpChan = chan.QueryInterface(Components.interfaces.nsIHttpChannel);

    62     httpChan.requestMethod = "GET";

    63     httpChan.setRequestHeader("x-request", value, false);

    64     return httpChan;

    65 }

    67 function triggerNextTest() {

    68     var channel = setupChannel(tests[index].url, tests[index].server);

    69     channel.asyncOpen(new ChannelListener(checkValueAndTrigger, null),null);

    70 }

    72 function checkValueAndTrigger(request, data, ctx) {

    73     logit(index, data);

    74     do_check_eq(tests[index].expected, data);

    76     if (index < tests.length-1) {

    77         index++;

    78         triggerNextTest();

    79     } else {

    80         httpserver.stop(do_test_finished);

    81     }

    82 }

    84 function run_test() {

    85     httpserver.registerPathHandler("/freshness", handler);

    86     httpserver.start(-1);

    88     // clear cache

    89     evict_cache_entries();

    90     triggerNextTest();

    92     do_test_pending();

    93 }

    95 function handler(metadata, response) {

    96     var body = metadata.getHeader("x-request");

    97     response.setHeader("Content-Type", "text/plain", false);

    98     response.setHeader("Date", getDateString(0), false);

   100     var header = tests[index].responseheader;

   101     if (header == null) {

   102         response.setHeader("Last-Modified", getDateString(-1), false);

   103     } else {

   104         var splitHdr = header.split(": ");

   105         response.setHeader(splitHdr[0], splitHdr[1], false);

   106     }

   108     response.setStatusLine(metadata.httpVersion, 200, "OK");

   109     response.bodyOutputStream.write(body, body.length);

   110 }

   112 function getDateString(yearDelta) {

   113     var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',

   114                   'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

   115     var days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];

   117     var d = new Date();

   118     return days[d.getUTCDay()] + ", " +

   119             d.getUTCDate() + " " +

   120             months[d.getUTCMonth()] + " " +

   121             (d.getUTCFullYear() + yearDelta) + " " +

   122             d.getUTCHours() + ":" + d.getUTCMinutes() +":" +

   123             d.getUTCSeconds() + " UTC";

   124 }

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