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/**
* Test for the "alternative data stream" stored withing a cache entry.
*
* - we load a URL with preference for an alt data (check what we get is the raw data,
* since there was nothing previously cached)
* - we store the alt data along the channel (to the cache entry)
* - we flush the HTTP cache
* - we reload the same URL using a new channel, again prefering the alt data be loaded
* - this time the alt data must arive
*/
"use strict";
const { HttpServer } = ChromeUtils.importESModule(
"resource://testing-common/httpd.sys.mjs"
);
ChromeUtils.defineLazyGetter(this, "URL", function () {
return "http://localhost:" + httpServer.identity.primaryPort + "/content";
});
var httpServer = null;
function make_channel(url) {
return NetUtil.newChannel({ uri: url, loadUsingSystemPrincipal: true });
}
function inChildProcess() {
return Services.appinfo.processType != Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT;
}
const responseContent = "response body";
const responseContent2 = "response body 2";
const altContent = "!@#$%^&*()";
const altContentType = "text/binary";
var servedNotModified = false;
var shouldPassRevalidation = true;
var cache_storage = null;
function contentHandler(metadata, response) {
response.setHeader("Content-Type", "text/plain");
response.setHeader("Cache-Control", "no-cache");
response.setHeader("ETag", "test-etag1");
let etag;
try {
etag = metadata.getHeader("If-None-Match");
} catch (ex) {
etag = "";
}
if (etag == "test-etag1" && shouldPassRevalidation) {
response.setStatusLine(metadata.httpVersion, 304, "Not Modified");
servedNotModified = true;
} else {
var content = shouldPassRevalidation ? responseContent : responseContent2;
response.bodyOutputStream.write(content, content.length);
}
}
function check_has_alt_data_in_index(aHasAltData, callback) {
if (inChildProcess()) {
callback();
return;
}
syncWithCacheIOThread(() => {
var hasAltData = {};
cache_storage.getCacheIndexEntryAttrs(createURI(URL), "", hasAltData, {});
Assert.equal(hasAltData.value, aHasAltData);
callback();
}, true);
}
function run_test() {
do_get_profile();
httpServer = new HttpServer();
httpServer.registerPathHandler("/content", contentHandler);
httpServer.start(-1);
do_test_pending();
if (!inChildProcess()) {
cache_storage = getCacheStorage("disk");
wait_for_cache_index(asyncOpen);
} else {
asyncOpen();
}
}
function asyncOpen() {
var chan = make_channel(URL);
var cc = chan.QueryInterface(Ci.nsICacheInfoChannel);
cc.preferAlternativeDataType(
altContentType,
"",
Ci.nsICacheInfoChannel.ASYNC
);
chan.asyncOpen(new ChannelListener(readServerContent, null));
}
function readServerContent(request, buffer) {
var cc = request.QueryInterface(Ci.nsICacheInfoChannel);
Assert.equal(buffer, responseContent);
Assert.equal(cc.alternativeDataType, "");
check_has_alt_data_in_index(false, () => {
executeSoon(() => {
var os = cc.openAlternativeOutputStream(
altContentType,
altContent.length
);
os.write(altContent, altContent.length);
os.close();
executeSoon(flushAndOpenAltChannel);
});
});
}
// needs to be rooted
var cacheFlushObserver = (cacheFlushObserver = {
observe() {
cacheFlushObserver = null;
openAltChannel();
},
});
function flushAndOpenAltChannel() {
// We need to do a GC pass to ensure the cache entry has been freed.
gc();
if (!inChildProcess()) {
Services.cache2
.QueryInterface(Ci.nsICacheTesting)
.flush(cacheFlushObserver);
} else {
do_send_remote_message("flush");
do_await_remote_message("flushed").then(() => {
openAltChannel();
});
}
}
function openAltChannel() {
var chan = make_channel(URL);
var cc = chan.QueryInterface(Ci.nsICacheInfoChannel);
cc.preferAlternativeDataType(
"dummy1",
"text/javascript",
Ci.nsICacheInfoChannel.ASYNC
);
cc.preferAlternativeDataType(
altContentType,
"text/plain",
Ci.nsICacheInfoChannel.ASYNC
);
cc.preferAlternativeDataType("dummy2", "", Ci.nsICacheInfoChannel.ASYNC);
chan.asyncOpen(new ChannelListener(readAltContent, null));
}
function readAltContent(request, buffer) {
var cc = request.QueryInterface(Ci.nsICacheInfoChannel);
Assert.equal(servedNotModified, true);
Assert.equal(cc.alternativeDataType, altContentType);
Assert.equal(buffer, altContent);
check_has_alt_data_in_index(true, () => {
cc.getOriginalInputStream({
onInputStreamReady(aInputStream) {
executeSoon(() => readOriginalInputStream(aInputStream));
},
});
});
}
function readOriginalInputStream(aInputStream) {
// We expect the async stream length to match the expected content.
// If the test times out, it's probably because of this.
try {
let originalData = read_stream(aInputStream, responseContent.length);
Assert.equal(originalData, responseContent);
requestAgain();
} catch (e) {
equal(e.result, Cr.NS_BASE_STREAM_WOULD_BLOCK);
executeSoon(() => readOriginalInputStream(aInputStream));
}
}
function requestAgain() {
shouldPassRevalidation = false;
var chan = make_channel(URL);
var cc = chan.QueryInterface(Ci.nsICacheInfoChannel);
cc.preferAlternativeDataType(
altContentType,
"",
Ci.nsICacheInfoChannel.ASYNC
);
chan.asyncOpen(new ChannelListener(readEmptyAltContent, null));
}
function readEmptyAltContent(request, buffer) {
var cc = request.QueryInterface(Ci.nsICacheInfoChannel);
// the cache is overwrite and the alt-data is reset
Assert.equal(cc.alternativeDataType, "");
Assert.equal(buffer, responseContent2);
check_has_alt_data_in_index(false, () => httpServer.stop(do_test_finished));
}
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