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//
// Test that "max_entry_size" prefs for disk- and memory-cache prevents
// caching resources with size out of bounds
//
"use strict";
const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
do_get_profile();
const prefService = Services.prefs;
const httpserver = new HttpServer();
// Repeats the given data until the total size is larger than 1K
function repeatToLargerThan1K(data) {
while (data.length <= 1024) {
data += data;
}
return data;
}
function setupChannel(suffix, value) {
var chan = NetUtil.newChannel({
uri: "http://localhost:" + httpserver.identity.primaryPort + suffix,
loadUsingSystemPrincipal: true,
});
var httpChan = chan.QueryInterface(Ci.nsIHttpChannel);
httpChan.setRequestHeader("x-request", value, false);
return httpChan;
}
var tests = [
new InitializeCacheDevices(true, false), // enable and create mem-device
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.memory.max_entry_size", 1);
},
"012345",
"9876543210",
"012345"
), // expect cached value
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.memory.max_entry_size", 1);
},
"0123456789a",
"9876543210",
"9876543210"
), // expect fresh value
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.memory.max_entry_size", -1);
},
"0123456789a",
"9876543210",
"0123456789a"
), // expect cached value
new InitializeCacheDevices(false, true), // enable and create disk-device
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.disk.max_entry_size", 1);
},
"012345",
"9876543210",
"012345"
), // expect cached value
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.disk.max_entry_size", 1);
},
"0123456789a",
"9876543210",
"9876543210"
), // expect fresh value
new TestCacheEntrySize(
function() {
prefService.setIntPref("browser.cache.disk.max_entry_size", -1);
},
"0123456789a",
"9876543210",
"0123456789a"
), // expect cached value
];
function nextTest() {
// We really want each test to be self-contained. Make sure cache is
// cleared and also let all operations finish before starting a new test
syncWithCacheIOThread(function() {
Services.cache2.clear();
syncWithCacheIOThread(runNextTest);
});
}
function runNextTest() {
var aTest = tests.shift();
if (!aTest) {
httpserver.stop(do_test_finished);
return;
}
executeSoon(function() {
aTest.start();
});
}
// Just make sure devices are created
function InitializeCacheDevices(memDevice, diskDevice) {
this.start = function() {
prefService.setBoolPref("browser.cache.memory.enable", memDevice);
if (memDevice) {
let cap = prefService.getIntPref("browser.cache.memory.capacity", 0);
if (cap == 0) {
prefService.setIntPref("browser.cache.memory.capacity", 1024);
}
}
prefService.setBoolPref("browser.cache.disk.enable", diskDevice);
if (diskDevice) {
let cap = prefService.getIntPref("browser.cache.disk.capacity", 0);
if (cap == 0) {
prefService.setIntPref("browser.cache.disk.capacity", 1024);
}
}
var channel = setupChannel("/bug650995", "Initial value");
channel.asyncOpen(new ChannelListener(nextTest, null));
};
}
function TestCacheEntrySize(
setSizeFunc,
firstRequest,
secondRequest,
secondExpectedReply
) {
// Initially, this test used 10 bytes as the limit for caching entries.
// Since we now use 1K granularity we have to extend lengths to be larger
// than 1K if it is larger than 10
if (firstRequest.length > 10) {
firstRequest = repeatToLargerThan1K(firstRequest);
}
if (secondExpectedReply.length > 10) {
secondExpectedReply = repeatToLargerThan1K(secondExpectedReply);
}
this.start = function() {
setSizeFunc();
var channel = setupChannel("/bug650995", firstRequest);
channel.asyncOpen(new ChannelListener(this.initialLoad, this));
};
this.initialLoad = function(request, data, ctx) {
Assert.equal(firstRequest, data);
var channel = setupChannel("/bug650995", secondRequest);
executeSoon(function() {
channel.asyncOpen(new ChannelListener(ctx.testAndTriggerNext, ctx));
});
};
this.testAndTriggerNext = function(request, data, ctx) {
Assert.equal(secondExpectedReply, data);
executeSoon(nextTest);
};
}
function run_test() {
httpserver.registerPathHandler("/bug650995", handler);
httpserver.start(-1);
prefService.setBoolPref("browser.cache.offline.enable", false);
prefService.setBoolPref("network.http.rcwn.enabled", false);
nextTest();
do_test_pending();
}
function handler(metadata, response) {
var body = "BOOM!";
try {
body = metadata.getHeader("x-request");
} catch (e) {}
response.setStatusLine(metadata.httpVersion, 200, "Ok");
response.setHeader("Content-Type", "text/plain", false);
response.setHeader("Cache-Control", "max-age=3600", false);
response.bodyOutputStream.write(body, body.length);
}
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