gecko/netwerk/test/unit/test_proxy-failover_canceled.js

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do_load_httpd_js();
var httpServer = null;
function make_channel(url, callback, ctx) {
var ios = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
return ios.newChannel(url, "", null);
}
const responseBody = "response body";
function contentHandler(metadata, response)
{
response.setHeader("Content-Type", "text/plain");
response.bodyOutputStream.write(responseBody, responseBody.length);
}
function finish_test(request, buffer)
{
do_check_eq(buffer, "");
httpServer.stop(do_test_finished);
}
function run_test()
{
httpServer = new nsHttpServer();
httpServer.registerPathHandler("/content", contentHandler);
httpServer.start(4444);
var nc = new ChannelEventSink();
var on_modify_request_count = 0;
modifyrequestobserver = {observe: function() {
// We get 2 on-modify-request notifications:
// 1. when proxy service resolves the proxy settings from PAC function
// 2. when we try to fail over the first proxy (moving to the second one)
//
// In the second case we want to cancel the proxy engage, so, do not allow
// redirects from now.
if (++on_modify_request_count == 2)
nc._flags = ES_ABORT_REDIRECT;
}}
var os = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
os.addObserver(modifyrequestobserver, "http-on-modify-request", false);
var prefserv = Cc["@mozilla.org/preferences-service;1"].
getService(Ci.nsIPrefService);
var prefs = prefserv.getBranch("network.proxy.");
prefs.setIntPref("type", 2);
prefs.setCharPref("autoconfig_url", "data:text/plain," +
"function FindProxyForURL(url, host) {return 'PROXY a_non_existent_domain_x7x6c572v:80; PROXY localhost:4444';}"
);
var chan = make_channel("http://localhost:4444/content");
chan.notificationCallbacks = nc;
chan.asyncOpen(new ChannelListener(finish_test, null, CL_EXPECT_FAILURE), null);
do_test_pending();
}