nsresult nsZipDataStream::ReadStream(nsIInputStream *aStream)
{
if (!mOutput)
return NS_ERROR_NOT_INITIALIZED;
nsresult rv = OnStartRequest(nullptr, nullptr);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoArrayPtr<char> buffer(new char[4096]);
NS_ENSURE_TRUE(buffer, NS_ERROR_OUT_OF_MEMORY);
uint32_t read = 0;
uint32_t offset = 0;
do
{
rv = aStream->Read(buffer.get(), 4096, &read);
if (NS_FAILED(rv)) {
OnStopRequest(nullptr, nullptr, rv);
return rv;
}
if (read > 0) {
rv = ProcessData(nullptr, nullptr, buffer.get(), offset, read);
if (NS_FAILED(rv)) {
OnStopRequest(nullptr, nullptr, rv);
return rv;
}
offset += read;
}
} while (read > 0);
return OnStopRequest(nullptr, nullptr, NS_OK);
}
nsresult
VectorImage::OnImageDataComplete(nsIRequest* aRequest,
nsISupports* aContext,
nsresult aStatus,
bool aLastPart)
{
// Call our internal OnStopRequest method, which only talks to our embedded
// SVG document. This won't have any effect on our ProgressTracker.
nsresult finalStatus = OnStopRequest(aRequest, aContext, aStatus);
// Give precedence to Necko failure codes.
if (NS_FAILED(aStatus)) {
finalStatus = aStatus;
}
Progress loadProgress = LoadCompleteProgress(aLastPart, mError, finalStatus);
if (mIsFullyLoaded || mError) {
// Our document is loaded, so we're ready to notify now.
mProgressTracker->SyncNotifyProgress(loadProgress);
} else {
// Record our progress so far; we'll actually send the notifications in
// OnSVGDocumentLoaded or OnSVGDocumentError.
mLoadProgress = Some(loadProgress);
}
return finalStatus;
}
nsresult
VectorImage::OnImageDataComplete(nsIRequest* aRequest,
nsISupports* aContext,
nsresult aStatus)
{
return OnStopRequest(aRequest, aContext, aStatus);
}
NS_IMETHODIMP
nsImageLoadingContent::OnStopRequest(imgIRequest* aRequest, PRBool aLastPart)
{
NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_NOT_AVAILABLE);
LOOP_OVER_OBSERVERS(OnStopRequest(aRequest, aLastPart));
return NS_OK;
}
/* static */ void
ProgressTracker::SyncNotifyInternal(ProxyArray& aProxies,
bool aHasImage,
Progress aProgress,
const nsIntRect& aDirtyRect)
{
MOZ_ASSERT(NS_IsMainThread());
// OnStartRequest
if (aProgress & FLAG_REQUEST_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartRequest());
// OnStartContainer
if (aProgress & FLAG_HAS_SIZE)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartContainer());
// OnStartDecode
if (aProgress & FLAG_DECODE_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartDecode());
// BlockOnload
if (aProgress & FLAG_ONLOAD_BLOCKED)
NOTIFY_IMAGE_OBSERVERS(aProxies, BlockOnload());
if (aHasImage) {
// OnFrameUpdate
// If there's any content in this frame at all (always true for
// vector images, true for raster images that have decoded at
// least one frame) then send OnFrameUpdate.
if (!aDirtyRect.IsEmpty())
NOTIFY_IMAGE_OBSERVERS(aProxies, OnFrameUpdate(&aDirtyRect));
if (aProgress & FLAG_FRAME_STOPPED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopFrame());
// OnImageIsAnimated
if (aProgress & FLAG_IS_ANIMATED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnImageIsAnimated());
}
// Send UnblockOnload before OnStopDecode and OnStopRequest. This allows
// observers that can fire events when they receive those notifications to do
// so then, instead of being forced to wait for UnblockOnload.
if (aProgress & FLAG_ONLOAD_UNBLOCKED) {
NOTIFY_IMAGE_OBSERVERS(aProxies, UnblockOnload());
}
if (aProgress & FLAG_DECODE_STOPPED) {
MOZ_ASSERT(aHasImage, "Stopped decoding without ever having an image?");
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopDecode());
}
if (aProgress & FLAG_REQUEST_STOPPED) {
NOTIFY_IMAGE_OBSERVERS(aProxies,
OnStopRequest(aProgress & FLAG_MULTIPART_STOPPED));
}
}
bool
HttpChannelChild::RecvOnStopRequest(const nsresult& statusCode)
{
if (mEventQ.ShouldEnqueue()) {
mEventQ.Enqueue(new StopRequestEvent(this, statusCode));
} else {
OnStopRequest(statusCode);
}
return true;
}
NS_IMETHODIMP
nsURLFetcher::OnStateChange(nsIWebProgress *aProgress, nsIRequest *aRequest,
uint32_t aStateFlags, nsresult aStatus)
{
// all we care about is the case where an error occurred (as in we were unable to locate the
// the url....
if (NS_FAILED(aStatus))
OnStopRequest(aRequest, nullptr, aStatus);
return NS_OK;
}
NS_IMETHODIMP
nsAlertsIconListener::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
{
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
return OnStopRequest(aRequest);
}
if (aType == imgINotificationObserver::FRAME_COMPLETE) {
return OnStopFrame(aRequest);
}
return NS_OK;
}
NS_IMETHODIMP
ImageDocument::Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData)
{
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
nsCOMPtr<imgIContainer> image;
aRequest->GetImage(getter_AddRefs(image));
return OnStartContainer(aRequest, image);
}
nsDOMTokenList* classList = mImageContent->AsElement()->ClassList();
mozilla::ErrorResult rv;
if (aType == imgINotificationObserver::DECODE_COMPLETE) {
if (mImageContent && !nsContentUtils::IsChildOfSameType(this)) {
// Update the background-color of the image only after the
// image has been decoded to prevent flashes of just the
// background-color.
classList->Add(NS_LITERAL_STRING("decoded"), rv);
NS_ENSURE_SUCCESS(rv.ErrorCode(), rv.ErrorCode());
}
}
if (aType == imgINotificationObserver::DISCARD) {
// mImageContent can be null if the document is already destroyed
if (mImageContent && !nsContentUtils::IsChildOfSameType(this)) {
// Remove any decoded-related styling when the image is unloaded.
classList->Remove(NS_LITERAL_STRING("decoded"), rv);
NS_ENSURE_SUCCESS(rv.ErrorCode(), rv.ErrorCode());
}
}
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
uint32_t reqStatus;
aRequest->GetImageStatus(&reqStatus);
nsresult status =
reqStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK;
return OnStopRequest(aRequest, status);
}
return NS_OK;
}
nsresult
VectorImage::OnImageDataComplete(nsIRequest* aRequest,
nsISupports* aContext,
nsresult aStatus,
bool aLastPart)
{
// Call our internal OnStopRequest method, which only talks to our embedded
// SVG document. This won't have any effect on our ProgressTracker.
nsresult finalStatus = OnStopRequest(aRequest, aContext, aStatus);
// Give precedence to Necko failure codes.
if (NS_FAILED(aStatus))
finalStatus = aStatus;
// Actually fire OnStopRequest.
if (mProgressTracker) {
mProgressTracker->SyncNotifyProgress(LoadCompleteProgress(aLastPart,
mError,
finalStatus));
}
return finalStatus;
}
NS_IMETHODIMP
nsJARChannel::OnDownloadComplete(nsIDownloader *downloader,
nsIRequest *request,
nsISupports *context,
nsresult status,
nsIFile *file)
{
nsresult rv;
nsCOMPtr<nsIChannel> channel(do_QueryInterface(request));
if (channel) {
PRUint32 loadFlags;
channel->GetLoadFlags(&loadFlags);
if (loadFlags & LOAD_REPLACE) {
mLoadFlags |= LOAD_REPLACE;
if (!mOriginalURI) {
SetOriginalURI(mJarURI);
}
nsCOMPtr<nsIURI> innerURI;
rv = channel->GetURI(getter_AddRefs(innerURI));
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIJARURI> newURI;
rv = mJarURI->CloneWithJARFile(innerURI,
getter_AddRefs(newURI));
if (NS_SUCCEEDED(rv)) {
mJarURI = newURI;
}
}
if (NS_SUCCEEDED(status)) {
status = rv;
}
}
}
if (NS_SUCCEEDED(status) && channel) {
// Grab the security info from our base channel
channel->GetSecurityInfo(getter_AddRefs(mSecurityInfo));
nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
if (httpChannel) {
// We only want to run scripts if the server really intended to
// send us a JAR file. Check the server-supplied content type for
// a JAR type.
nsCAutoString header;
httpChannel->GetResponseHeader(NS_LITERAL_CSTRING("Content-Type"),
header);
nsCAutoString contentType;
nsCAutoString charset;
NS_ParseContentType(header, contentType, charset);
nsCAutoString channelContentType;
channel->GetContentType(channelContentType);
mIsUnsafe = !(contentType.Equals(channelContentType) &&
(contentType.EqualsLiteral("application/java-archive") ||
contentType.EqualsLiteral("application/x-jar")));
} else {
nsCOMPtr<nsIJARChannel> innerJARChannel(do_QueryInterface(channel));
if (innerJARChannel) {
PRBool unsafe;
innerJARChannel->GetIsUnsafe(&unsafe);
mIsUnsafe = unsafe;
}
}
channel->GetContentDisposition(mContentDisposition);
}
if (NS_SUCCEEDED(status) && mIsUnsafe) {
PRBool allowUnpack = PR_FALSE;
nsCOMPtr<nsIPrefBranch> prefs =
do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
prefs->GetBoolPref("network.jar.open-unsafe-types", &allowUnpack);
}
if (!allowUnpack) {
status = NS_ERROR_UNSAFE_CONTENT_TYPE;
}
}
if (NS_SUCCEEDED(status)) {
// Refuse to unpack view-source: jars even if open-unsafe-types is set.
nsCOMPtr<nsIViewSourceChannel> viewSource = do_QueryInterface(channel);
if (viewSource) {
status = NS_ERROR_UNSAFE_CONTENT_TYPE;
}
}
if (NS_SUCCEEDED(status)) {
mJarFile = file;
rv = CreateJarInput(nsnull);
if (NS_SUCCEEDED(rv)) {
// create input stream pump
rv = NS_NewInputStreamPump(getter_AddRefs(mPump), mJarInput);
if (NS_SUCCEEDED(rv))
rv = mPump->AsyncRead(this, nsnull);
}
status = rv;
}
if (NS_FAILED(status)) {
mStatus = status;
OnStartRequest(nsnull, nsnull);
OnStopRequest(nsnull, nsnull, status);
}
return NS_OK;
}
// This is called when the channel is redirected.
NS_IMETHODIMP
FetchDriver::AsyncOnChannelRedirect(nsIChannel* aOldChannel,
nsIChannel* aNewChannel,
uint32_t aFlags,
nsIAsyncVerifyRedirectCallback *aCallback)
{
NS_PRECONDITION(aNewChannel, "Redirect without a channel?");
nsresult rv;
// HTTP Fetch step 5, "redirect status", step 1
if (NS_WARN_IF(mRequest->GetRedirectMode() == RequestRedirect::Error)) {
aOldChannel->Cancel(NS_BINDING_FAILED);
return NS_BINDING_FAILED;
}
// HTTP Fetch step 5, "redirect status", steps 2 through 6 are automatically
// handled by necko before calling AsyncOnChannelRedirect() with the new
// nsIChannel.
// HTTP Fetch step 5, "redirect status", steps 7 and 8 enforcing a redirect
// count are done by Necko. The pref used is "network.http.redirection-limit"
// which is set to 20 by default.
// HTTP Fetch Step 9, "redirect status". We only unset this for spec
// compatibility. Any actions we take on mRequest here do not affect what the
//channel does.
mRequest->UnsetSameOriginDataURL();
// HTTP Fetch step 5, "redirect status", step 10 requires us to halt the
// redirect, but successfully return an opaqueredirect Response to the
// initiating Fetch.
if (mRequest->GetRedirectMode() == RequestRedirect::Manual) {
// Ideally we would simply not cancel the old channel and allow it to
// be processed as normal. Unfortunately this is quite fragile and
// other redirect handlers can easily break it for certain use cases.
//
// For example, nsCORSListenerProxy cancels vetoed redirect channels.
// The HTTP cache will also error on vetoed redirects when the
// redirect has been previously cached.
//
// Therefore simulate the completion of the channel to produce the
// opaqueredirect Response and then cancel the original channel. This
// will result in OnStartRequest() getting called twice, but the second
// time will be with an error response (from the Cancel) which will
// be ignored.
mRequest->SetResponseTainting(InternalRequest::RESPONSETAINT_OPAQUEREDIRECT);
unused << OnStartRequest(aOldChannel, nullptr);
unused << OnStopRequest(aOldChannel, nullptr, NS_OK);
aOldChannel->Cancel(NS_BINDING_FAILED);
return NS_BINDING_FAILED;
}
// The following steps are from HTTP Fetch step 5, "redirect status", step 11
// which requires the RequestRedirect to be "follow".
MOZ_ASSERT(mRequest->GetRedirectMode() == RequestRedirect::Follow);
// HTTP Fetch step 5, "redirect status", steps 11.1 and 11.2 block redirecting
// to a URL with credentials in CORS mode. This is implemented in
// nsCORSListenerProxy.
mRedirectCallback = aCallback;
mOldRedirectChannel = aOldChannel;
mNewRedirectChannel = aNewChannel;
nsCOMPtr<nsIChannelEventSink> outer =
do_GetInterface(mNotificationCallbacks);
if (outer) {
// The callee is supposed to call OnRedirectVerifyCallback() on success,
// and nobody has to call it on failure, so we can just return after this
// block.
rv = outer->AsyncOnChannelRedirect(aOldChannel, aNewChannel, aFlags, this);
if (NS_FAILED(rv)) {
aOldChannel->Cancel(rv);
mRedirectCallback = nullptr;
mOldRedirectChannel = nullptr;
mNewRedirectChannel = nullptr;
}
return rv;
}
(void) OnRedirectVerifyCallback(NS_OK);
return NS_OK;
}