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const { HttpServer } = ChromeUtils.importESModule(
"resource://testing-common/httpd.sys.mjs"
);
/*
* Test that when doing HTTP requests, the nsIHttpChannel is detected in
* both parent and child and shares the same channelId across processes.
*/
let httpserver;
let port;
function startHttpServer() {
httpserver = new HttpServer();
httpserver.registerPathHandler("/resource", (metadata, response) => {
response.setStatusLine(metadata.httpVersion, 200, "OK");
response.setHeader("Content-Type", "text/plain", false);
response.setHeader("Cache-Control", "no-cache", false);
response.bodyOutputStream.write("data", 4);
});
httpserver.registerPathHandler("/redirect", (metadata, response) => {
response.setStatusLine(metadata.httpVersion, 302, "Redirect");
response.setHeader("Location", "/resource", false);
response.setHeader("Cache-Control", "no-cache", false);
});
httpserver.start(-1);
port = httpserver.identity.primaryPort;
}
function stopHttpServer(next) {
httpserver.stop(next);
}
let expectedParentChannels = [];
let expectedChildMessages = [];
let maybeFinishWaitForParentChannels;
let parentChannelsDone = new Promise(resolve => {
maybeFinishWaitForParentChannels = () => {
if (!expectedParentChannels.length) {
dump("All expected parent channels were detected\n");
resolve();
}
};
});
function observer(subject, topic, data) {
let channel = subject.QueryInterface(Ci.nsIHttpChannel);
let uri = channel.URI.spec;
let origUri = channel.originalURI.spec;
let id = channel.channelId;
dump(`Parent detected channel: ${uri} (orig=${origUri}): channelId=${id}\n`);
// did we expect a new channel?
let expected = expectedParentChannels.shift();
Assert.ok(!!expected);
// Start waiting for the messages about request/response from child
for (let event of expected) {
let message = `${event}:${id}`;
dump(`Expecting message from child: ${message}\n`);
let messagePromise = do_await_remote_message(message).then(() => {
dump(`Expected message from child arrived: ${message}\n`);
});
expectedChildMessages.push(messagePromise);
}
// If we don't expect any further parent channels, finish the parent wait
maybeFinishWaitForParentChannels();
}
function run_test() {
startHttpServer();
Services.obs.addObserver(observer, "http-on-modify-request");
run_test_in_child("child_channel_id.js", makeRequests);
}
function makeRequests() {
// First, a normal request without any redirect. Expect one channel detected
// in parent, used by both request and response.
expectedParentChannels.push(["request", "response"]);
sendCommand(`makeRequest("http://localhost:${port}/resource");`);
// Second request will be redirected. Expect two channels, one with the
// original request, then the redirected one which gets the final response.
expectedParentChannels.push(["request"], ["response"]);
sendCommand(`makeRequest("http://localhost:${port}/redirect");`);
waitForParentChannels();
}
function waitForParentChannels() {
parentChannelsDone.then(waitForChildMessages);
}
function waitForChildMessages() {
dump(`Waiting for ${expectedChildMessages.length} child messages\n`);
Promise.all(expectedChildMessages).then(finish);
}
function finish() {
Services.obs.removeObserver(observer, "http-on-modify-request");
sendCommand("finish();", () => stopHttpServer(do_test_finished));
}
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