void
nsPACMan::StartLoading()
{
mLoadPending = false;
// CancelExistingLoad was called...
if (!mLoader) {
ProcessPendingQ(NS_ERROR_ABORT);
return;
}
if (NS_SUCCEEDED(mLoader->Init(this))) {
// Always hit the origin server when loading PAC.
nsCOMPtr<nsIIOService> ios = do_GetIOService();
if (ios) {
nsCOMPtr<nsIChannel> channel;
// NOTE: This results in GetProxyForURI being called
ios->NewChannelFromURI(mPACURI, getter_AddRefs(channel));
if (channel) {
channel->SetLoadFlags(nsIRequest::LOAD_BYPASS_CACHE);
channel->SetNotificationCallbacks(this);
if (NS_SUCCEEDED(channel->AsyncOpen(mLoader, nsnull)))
return;
}
}
}
CancelExistingLoad();
ProcessPendingQ(NS_ERROR_UNEXPECTED);
}
void
nsPACMan::Shutdown()
{
CancelExistingLoad();
ProcessPendingQ(NS_ERROR_ABORT);
mPAC = nsnull;
mShutdown = true;
}
nsresult
nsPACMan::PostQuery(PendingPACQuery *query)
{
MOZ_ASSERT(!NS_IsMainThread(), "wrong thread");
if (mShutdown) {
query->Complete(NS_ERROR_NOT_AVAILABLE, EmptyCString());
return NS_OK;
}
// add a reference to the query while it is in the pending list
RefPtr<PendingPACQuery> addref(query);
mPendingQ.insertBack(addref.forget().take());
ProcessPendingQ();
return NS_OK;
}
NS_IMETHODIMP
nsPACMan::OnStreamComplete(nsIStreamLoader *loader,
nsISupports *context,
nsresult status,
PRUint32 dataLen,
const PRUint8 *data)
{
if (mLoader != loader) {
// If this happens, then it means that LoadPACFromURI was called more
// than once before the initial call completed. In this case, status
// should be NS_ERROR_ABORT, and if so, then we know that we can and
// should delay any processing.
if (status == NS_ERROR_ABORT)
return NS_OK;
}
mLoader = nsnull;
if (NS_SUCCEEDED(status) && HttpRequestSucceeded(loader)) {
// Get the URI spec used to load this PAC script.
nsCAutoString pacURI;
{
nsCOMPtr<nsIRequest> request;
loader->GetRequest(getter_AddRefs(request));
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
if (channel) {
nsCOMPtr<nsIURI> uri;
channel->GetURI(getter_AddRefs(uri));
if (uri)
uri->GetAsciiSpec(pacURI);
}
}
if (!mPAC) {
mPAC = do_CreateInstance(NS_PROXYAUTOCONFIG_CONTRACTID, &status);
if (!mPAC)
NS_WARNING("failed to instantiate PAC component");
}
if (NS_SUCCEEDED(status)) {
// We assume that the PAC text is ASCII (or ISO-Latin-1). We've had this
// assumption forever, and some real-world PAC scripts actually have some
// non-ASCII text in comment blocks (see bug 296163).
const char *text = (const char *) data;
status = mPAC->Init(pacURI, NS_ConvertASCIItoUTF16(text, dataLen));
}
// Even if the PAC file could not be parsed, we did succeed in loading the
// data for it.
mLoadFailureCount = 0;
} else {
// We were unable to load the PAC file (presumably because of a network
// failure). Try again a little later.
OnLoadFailure();
}
// Reset mPAC if necessary
if (mPAC && NS_FAILED(status))
mPAC = nsnull;
ProcessPendingQ(status);
return NS_OK;
}
