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diff --git a/image/decoders/icon/mac/nsIconChannelCocoa.mm b/image/decoders/icon/mac/nsIconChannelCocoa.mm
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsContentUtils.h"
+#include "nsIconChannel.h"
+#include "mozilla/EndianUtils.h"
+#include "nsIIconURI.h"
+#include "nsIServiceManager.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "nsXPIDLString.h"
+#include "nsMimeTypes.h"
+#include "nsMemory.h"
+#include "nsIStringStream.h"
+#include "nsIURL.h"
+#include "nsNetCID.h"
+#include "nsIPipe.h"
+#include "nsIOutputStream.h"
+#include "nsIMIMEService.h"
+#include "nsCExternalHandlerService.h"
+#include "nsILocalFileMac.h"
+#include "nsIFileURL.h"
+#include "nsTArray.h"
+#include "nsObjCExceptions.h"
+#include "nsProxyRelease.h"
+#include "nsContentSecurityManager.h"
+
+#include <Cocoa/Cocoa.h>
+
+// nsIconChannel methods
+nsIconChannel::nsIconChannel()
+{
+}
+
+nsIconChannel::~nsIconChannel()
+{
+ if (mLoadInfo) {
+ NS_ReleaseOnMainThread(mLoadInfo.forget());
+ }
+}
+
+NS_IMPL_ISUPPORTS(nsIconChannel,
+ nsIChannel,
+ nsIRequest,
+ nsIRequestObserver,
+ nsIStreamListener)
+
+nsresult
+nsIconChannel::Init(nsIURI* uri)
+{
+ NS_ASSERTION(uri, "no uri");
+ mUrl = uri;
+ mOriginalURI = uri;
+ nsresult rv;
+ mPump = do_CreateInstance(NS_INPUTSTREAMPUMP_CONTRACTID, &rv);
+ return rv;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIRequest methods:
+
+NS_IMETHODIMP
+nsIconChannel::GetName(nsACString& result)
+{
+ return mUrl->GetSpec(result);
+}
+
+NS_IMETHODIMP
+nsIconChannel::IsPending(bool* result)
+{
+ return mPump->IsPending(result);
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetStatus(nsresult* status)
+{
+ return mPump->GetStatus(status);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Cancel(nsresult status)
+{
+ return mPump->Cancel(status);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Suspend(void)
+{
+ return mPump->Suspend();
+}
+
+NS_IMETHODIMP
+nsIconChannel::Resume(void)
+{
+ return mPump->Resume();
+}
+
+// nsIRequestObserver methods
+NS_IMETHODIMP
+nsIconChannel::OnStartRequest(nsIRequest* aRequest,
+ nsISupports* aContext)
+{
+ if (mListener) {
+ return mListener->OnStartRequest(this, aContext);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::OnStopRequest(nsIRequest* aRequest,
+ nsISupports* aContext,
+ nsresult aStatus)
+{
+ if (mListener) {
+ mListener->OnStopRequest(this, aContext, aStatus);
+ mListener = nullptr;
+ }
+
+ // Remove from load group
+ if (mLoadGroup) {
+ mLoadGroup->RemoveRequest(this, nullptr, aStatus);
+ }
+
+ return NS_OK;
+}
+
+// nsIStreamListener methods
+NS_IMETHODIMP
+nsIconChannel::OnDataAvailable(nsIRequest* aRequest,
+ nsISupports* aContext,
+ nsIInputStream* aStream,
+ uint64_t aOffset,
+ uint32_t aCount)
+{
+ if (mListener) {
+ return mListener->OnDataAvailable(this, aContext, aStream, aOffset, aCount);
+ }
+ return NS_OK;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIChannel methods:
+
+NS_IMETHODIMP
+nsIconChannel::GetOriginalURI(nsIURI** aURI)
+{
+ *aURI = mOriginalURI;
+ NS_ADDREF(*aURI);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetOriginalURI(nsIURI* aURI)
+{
+ NS_ENSURE_ARG_POINTER(aURI);
+ mOriginalURI = aURI;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetURI(nsIURI** aURI)
+{
+ *aURI = mUrl;
+ NS_IF_ADDREF(*aURI);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open(nsIInputStream** _retval)
+{
+ return MakeInputStream(_retval, false);
+}
+
+NS_IMETHODIMP
+nsIconChannel::Open2(nsIInputStream** aStream)
+{
+ nsCOMPtr<nsIStreamListener> listener;
+ nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
+ NS_ENSURE_SUCCESS(rv, rv);
+ return Open(aStream);
+}
+
+nsresult
+nsIconChannel::ExtractIconInfoFromUrl(nsIFile** aLocalFile,
+ uint32_t* aDesiredImageSize,
+ nsACString& aContentType,
+ nsACString& aFileExtension)
+{
+ nsresult rv = NS_OK;
+ nsCOMPtr<nsIMozIconURI> iconURI (do_QueryInterface(mUrl, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ iconURI->GetImageSize(aDesiredImageSize);
+ iconURI->GetContentType(aContentType);
+ iconURI->GetFileExtension(aFileExtension);
+
+ nsCOMPtr<nsIURL> url;
+ rv = iconURI->GetIconURL(getter_AddRefs(url));
+ if (NS_FAILED(rv) || !url) return NS_OK;
+
+ nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(url, &rv);
+ if (NS_FAILED(rv) || !fileURL) return NS_OK;
+
+ nsCOMPtr<nsIFile> file;
+ rv = fileURL->GetFile(getter_AddRefs(file));
+ if (NS_FAILED(rv) || !file) return NS_OK;
+
+ nsCOMPtr<nsILocalFileMac> localFileMac (do_QueryInterface(file, &rv));
+ if (NS_FAILED(rv) || !localFileMac) return NS_OK;
+
+ *aLocalFile = file;
+ NS_IF_ADDREF(*aLocalFile);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::AsyncOpen(nsIStreamListener* aListener,
+ nsISupports* ctxt)
+{
+ MOZ_ASSERT(!mLoadInfo ||
+ mLoadInfo->GetSecurityMode() == 0 ||
+ mLoadInfo->GetInitialSecurityCheckDone() ||
+ (mLoadInfo->GetSecurityMode() == nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL &&
+ nsContentUtils::IsSystemPrincipal(mLoadInfo->LoadingPrincipal())),
+ "security flags in loadInfo but asyncOpen2() not called");
+
+ nsCOMPtr<nsIInputStream> inStream;
+ nsresult rv = MakeInputStream(getter_AddRefs(inStream), true);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ // Init our stream pump
+ rv = mPump->Init(inStream, int64_t(-1), int64_t(-1), 0, 0, false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = mPump->AsyncRead(this, ctxt);
+ if (NS_SUCCEEDED(rv)) {
+ // Store our real listener
+ mListener = aListener;
+ // Add ourself to the load group, if available
+ if (mLoadGroup) {
+ mLoadGroup->AddRequest(this, nullptr);
+ }
+ }
+
+ return rv;
+}
+
+NS_IMETHODIMP
+nsIconChannel::AsyncOpen2(nsIStreamListener* aListener)
+{
+ nsCOMPtr<nsIStreamListener> listener = aListener;
+ nsresult rv = nsContentSecurityManager::doContentSecurityCheck(this, listener);
+ NS_ENSURE_SUCCESS(rv, rv);
+ return AsyncOpen(listener, nullptr);
+}
+
+nsresult
+nsIconChannel::MakeInputStream(nsIInputStream** _retval,
+ bool aNonBlocking)
+{
+ NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NSRESULT;
+
+ nsXPIDLCString contentType;
+ nsAutoCString fileExt;
+ nsCOMPtr<nsIFile> fileloc; // file we want an icon for
+ uint32_t desiredImageSize;
+ nsresult rv = ExtractIconInfoFromUrl(getter_AddRefs(fileloc),
+ &desiredImageSize, contentType, fileExt);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ bool fileExists = false;
+ if (fileloc) {
+ // ensure that we DO NOT resolve aliases, very important for file views
+ fileloc->SetFollowLinks(false);
+ fileloc->Exists(&fileExists);
+ }
+
+ NSImage* iconImage = nil;
+
+ // first try to get the icon from the file if it exists
+ if (fileExists) {
+ nsCOMPtr<nsILocalFileMac> localFileMac(do_QueryInterface(fileloc, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ CFURLRef macURL;
+ if (NS_SUCCEEDED(localFileMac->GetCFURL(&macURL))) {
+ iconImage = [[NSWorkspace sharedWorkspace]
+ iconForFile:[(NSURL*)macURL path]];
+ ::CFRelease(macURL);
+ }
+ }
+
+ // if we don't have an icon yet try to get one by extension
+ if (!iconImage && !fileExt.IsEmpty()) {
+ NSString* fileExtension = [NSString stringWithUTF8String:fileExt.get()];
+ iconImage = [[NSWorkspace sharedWorkspace] iconForFileType:fileExtension];
+ }
+
+ // If we still don't have an icon, get the generic document icon.
+ if (!iconImage) {
+ iconImage = [[NSWorkspace sharedWorkspace]
+ iconForFileType:NSFileTypeUnknown];
+ }
+
+ if (!iconImage) {
+ return NS_ERROR_FAILURE;
+ }
+
+ // we have an icon now, size it
+ NSRect desiredSizeRect = NSMakeRect(0, 0, desiredImageSize, desiredImageSize);
+ [iconImage setSize:desiredSizeRect.size];
+
+ [iconImage lockFocus];
+ NSBitmapImageRep* bitmapRep = [[[NSBitmapImageRep alloc]
+ initWithFocusedViewRect:desiredSizeRect]
+ autorelease];
+ [iconImage unlockFocus];
+
+ // we expect the following things to be true about our bitmapRep
+ NS_ENSURE_TRUE(![bitmapRep isPlanar] &&
+ // Not necessarily: on a HiDPI-capable system, we'll get
+ // a 2x bitmap
+ // (unsigned int)[bitmapRep bytesPerPlane] ==
+ // desiredImageSize * desiredImageSize * 4 &&
+ [bitmapRep bitsPerPixel] == 32 &&
+ [bitmapRep samplesPerPixel] == 4 &&
+ [bitmapRep hasAlpha] == YES,
+ NS_ERROR_UNEXPECTED);
+
+ // check what size we actually got, and ensure it isn't too big to return
+ uint32_t actualImageSize = [bitmapRep bytesPerRow] / 4;
+ NS_ENSURE_TRUE(actualImageSize < 256, NS_ERROR_UNEXPECTED);
+
+ // now we can validate the amount of data
+ NS_ENSURE_TRUE((unsigned int)[bitmapRep bytesPerPlane] ==
+ actualImageSize * actualImageSize * 4,
+ NS_ERROR_UNEXPECTED);
+
+ // rgba, pre-multiplied data
+ uint8_t* bitmapRepData = (uint8_t*)[bitmapRep bitmapData];
+
+ // create our buffer
+ int32_t bufferCapacity = 2 + [bitmapRep bytesPerPlane];
+ AutoTArray<uint8_t, 3 + 16 * 16 * 5> iconBuffer; // initial size is for
+ // 16x16
+ iconBuffer.SetLength(bufferCapacity);
+
+ uint8_t* iconBufferPtr = iconBuffer.Elements();
+
+ // write header data into buffer
+ *iconBufferPtr++ = actualImageSize;
+ *iconBufferPtr++ = actualImageSize;
+
+ uint32_t dataCount = [bitmapRep bytesPerPlane];
+ uint32_t index = 0;
+ while (index < dataCount) {
+ // get data from the bitmap
+ uint8_t r = bitmapRepData[index++];
+ uint8_t g = bitmapRepData[index++];
+ uint8_t b = bitmapRepData[index++];
+ uint8_t a = bitmapRepData[index++];
+
+ // write data out to our buffer
+ // non-cairo uses native image format, but the A channel is ignored.
+ // cairo uses ARGB (highest to lowest bits)
+#if MOZ_LITTLE_ENDIAN
+ *iconBufferPtr++ = b;
+ *iconBufferPtr++ = g;
+ *iconBufferPtr++ = r;
+ *iconBufferPtr++ = a;
+#else
+ *iconBufferPtr++ = a;
+ *iconBufferPtr++ = r;
+ *iconBufferPtr++ = g;
+ *iconBufferPtr++ = b;
+#endif
+ }
+
+ NS_ASSERTION(iconBufferPtr == iconBuffer.Elements() + bufferCapacity,
+ "buffer size miscalculation");
+
+ // Now, create a pipe and stuff our data into it
+ nsCOMPtr<nsIInputStream> inStream;
+ nsCOMPtr<nsIOutputStream> outStream;
+ rv = NS_NewPipe(getter_AddRefs(inStream), getter_AddRefs(outStream),
+ bufferCapacity, bufferCapacity, aNonBlocking);
+
+ if (NS_SUCCEEDED(rv)) {
+ uint32_t written;
+ rv = outStream->Write((char*)iconBuffer.Elements(), bufferCapacity,
+ &written);
+ if (NS_SUCCEEDED(rv)) {
+ NS_IF_ADDREF(*_retval = inStream);
+ }
+ }
+
+ // Drop notification callbacks to prevent cycles.
+ mCallbacks = nullptr;
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_ABORT_BLOCK_NSRESULT;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetLoadFlags(uint32_t* aLoadAttributes)
+{
+ return mPump->GetLoadFlags(aLoadAttributes);
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadFlags(uint32_t aLoadAttributes)
+{
+ return mPump->SetLoadFlags(aLoadAttributes);
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentType(nsACString& aContentType)
+{
+ aContentType.AssignLiteral(IMAGE_ICON_MS);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentType(const nsACString& aContentType)
+{
+ //It doesn't make sense to set the content-type on this type
+ // of channel...
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentCharset(nsACString& aContentCharset)
+{
+ aContentCharset.AssignLiteral(IMAGE_ICON_MS);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentCharset(const nsACString& aContentCharset)
+{
+ //It doesn't make sense to set the content-type on this type
+ // of channel...
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentDisposition(uint32_t* aContentDisposition)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentDisposition(uint32_t aContentDisposition)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetContentDispositionFilename(nsAString& aContentDispositionFilename)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ SetContentDispositionFilename(const nsAString& aContentDispositionFilename)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetContentDispositionHeader(nsACString& aContentDispositionHeader)
+{
+ return NS_ERROR_NOT_AVAILABLE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetContentLength(int64_t* aContentLength)
+{
+ *aContentLength = 0;
+ return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetContentLength(int64_t aContentLength)
+{
+ NS_NOTREACHED("nsIconChannel::SetContentLength");
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetLoadGroup(nsILoadGroup** aLoadGroup)
+{
+ *aLoadGroup = mLoadGroup;
+ NS_IF_ADDREF(*aLoadGroup);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadGroup(nsILoadGroup* aLoadGroup)
+{
+ mLoadGroup = aLoadGroup;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetOwner(nsISupports** aOwner)
+{
+ *aOwner = mOwner.get();
+ NS_IF_ADDREF(*aOwner);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetOwner(nsISupports* aOwner)
+{
+ mOwner = aOwner;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetLoadInfo(nsILoadInfo** aLoadInfo)
+{
+ NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::SetLoadInfo(nsILoadInfo* aLoadInfo)
+{
+ mLoadInfo = aLoadInfo;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ GetNotificationCallbacks(nsIInterfaceRequestor** aNotificationCallbacks)
+{
+ *aNotificationCallbacks = mCallbacks.get();
+ NS_IF_ADDREF(*aNotificationCallbacks);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::
+ SetNotificationCallbacks(nsIInterfaceRequestor* aNotificationCallbacks)
+{
+ mCallbacks = aNotificationCallbacks;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsIconChannel::GetSecurityInfo(nsISupports** aSecurityInfo)
+{
+ *aSecurityInfo = nullptr;
+ return NS_OK;
+}
+