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fune/browser/components/shell/nsGNOMEShellSearchProvider.cpp
Emilio Cobos Álvarez fed4a076d6 Bug 1857340 - Fix GVariant reference confusion. r=stransky 
Another bug caused by GObject floating references :')

The GVariant returned by builder_end() is floating, and the way
g_variant_builder_add_value works is that it _only_ takes a reference if
floating.

So basically if you have a RefPtr<GVariant> with a floating reference,
then pass it to g_variant_builder_add_value, the reference is "stolen",
but RefPtr doesn't know about it.

It really sucks.

Differential Revision: https://phabricator.services.mozilla.com/D190240
2023-10-06 10:51:36 +00:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* 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 "nsGNOMEShellSearchProvider.h"
#include "nsToolkitCompsCID.h"
#include "nsIFaviconService.h"
#include "base/message_loop.h" // for MessageLoop
#include "base/task.h" // for NewRunnableMethod, etc
#include "mozilla/gfx/2D.h"
#include "nsComponentManagerUtils.h"
#include "nsIIOService.h"
#include "nsIURI.h"
#include "nsNetCID.h"
#include "nsPrintfCString.h"
#include "nsServiceManagerUtils.h"
#include "mozilla/GUniquePtr.h"
#include "mozilla/UniquePtrExtensions.h"
#include "imgIContainer.h"
#include "imgITools.h"
using namespace mozilla;
using namespace mozilla::gfx;
// Mozilla has old GIO version in build roots
#define G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE GBusNameOwnerFlags(1 << 2)
static const char* introspect_template =
"<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection "
"1.0//EN\"\n"
"\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
"<node>\n"
" <interface name=\"org.gnome.Shell.SearchProvider2\">\n"
" <method name=\"GetInitialResultSet\">\n"
" <arg type=\"as\" name=\"terms\" direction=\"in\" />\n"
" <arg type=\"as\" name=\"results\" direction=\"out\" />\n"
" </method>\n"
" <method name=\"GetSubsearchResultSet\">\n"
" <arg type=\"as\" name=\"previous_results\" direction=\"in\" />\n"
" <arg type=\"as\" name=\"terms\" direction=\"in\" />\n"
" <arg type=\"as\" name=\"results\" direction=\"out\" />\n"
" </method>\n"
" <method name=\"GetResultMetas\">\n"
" <arg type=\"as\" name=\"identifiers\" direction=\"in\" />\n"
" <arg type=\"aa{sv}\" name=\"metas\" direction=\"out\" />\n"
" </method>\n"
" <method name=\"ActivateResult\">\n"
" <arg type=\"s\" name=\"identifier\" direction=\"in\" />\n"
" <arg type=\"as\" name=\"terms\" direction=\"in\" />\n"
" <arg type=\"u\" name=\"timestamp\" direction=\"in\" />\n"
" </method>\n"
" <method name=\"LaunchSearch\">\n"
" <arg type=\"as\" name=\"terms\" direction=\"in\" />\n"
" <arg type=\"u\" name=\"timestamp\" direction=\"in\" />\n"
" </method>\n"
"</interface>\n"
"</node>\n";
class AsyncFaviconDataReady final : public nsIFaviconDataCallback {
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIFAVICONDATACALLBACK
AsyncFaviconDataReady(RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult,
int aIconIndex, int aTimeStamp)
: mSearchResult(std::move(aSearchResult)),
mIconIndex(aIconIndex),
mTimeStamp(aTimeStamp){};
private:
~AsyncFaviconDataReady() {}
RefPtr<nsGNOMEShellHistorySearchResult> mSearchResult;
int mIconIndex;
int mTimeStamp;
};
NS_IMPL_ISUPPORTS(AsyncFaviconDataReady, nsIFaviconDataCallback)
// Inspired by SurfaceToPackedBGRA
static UniquePtr<uint8_t[]> SurfaceToPackedRGBA(DataSourceSurface* aSurface) {
IntSize size = aSurface->GetSize();
CheckedInt<size_t> bufferSize =
CheckedInt<size_t>(size.width * 4) * CheckedInt<size_t>(size.height);
if (!bufferSize.isValid()) {
return nullptr;
}
UniquePtr<uint8_t[]> imageBuffer(new (std::nothrow)
uint8_t[bufferSize.value()]);
if (!imageBuffer) {
return nullptr;
}
DataSourceSurface::MappedSurface map;
if (!aSurface->Map(DataSourceSurface::MapType::READ, &map)) {
return nullptr;
}
// Convert BGRA to RGBA
uint32_t* aSrc = (uint32_t*)map.mData;
uint32_t* aDst = (uint32_t*)imageBuffer.get();
for (int i = 0; i < size.width * size.height; i++, aDst++, aSrc++) {
*aDst = *aSrc & 0xff00ff00;
*aDst |= (*aSrc & 0xff) << 16;
*aDst |= (*aSrc & 0xff0000) >> 16;
}
aSurface->Unmap();
return imageBuffer;
}
NS_IMETHODIMP
AsyncFaviconDataReady::OnComplete(nsIURI* aFaviconURI, uint32_t aDataLen,
const uint8_t* aData,
const nsACString& aMimeType,
uint16_t aWidth) {
// This is a callback from some previous search so we don't want it
if (mTimeStamp != mSearchResult->GetTimeStamp() || !aData || !aDataLen) {
return NS_ERROR_FAILURE;
}
// Decode the image from the format it was returned to us in (probably PNG)
nsCOMPtr<imgIContainer> container;
nsCOMPtr<imgITools> imgtool = do_CreateInstance("@mozilla.org/image/tools;1");
nsresult rv = imgtool->DecodeImageFromBuffer(
reinterpret_cast<const char*>(aData), aDataLen, aMimeType,
getter_AddRefs(container));
NS_ENSURE_SUCCESS(rv, rv);
RefPtr<SourceSurface> surface = container->GetFrame(
imgIContainer::FRAME_FIRST,
imgIContainer::FLAG_SYNC_DECODE | imgIContainer::FLAG_ASYNC_NOTIFY);
if (!surface || surface->GetFormat() != SurfaceFormat::B8G8R8A8) {
return NS_ERROR_FAILURE;
}
// Allocate a new buffer that we own.
RefPtr<DataSourceSurface> dataSurface = surface->GetDataSurface();
UniquePtr<uint8_t[]> data = SurfaceToPackedRGBA(dataSurface);
if (!data) {
return NS_ERROR_OUT_OF_MEMORY;
}
mSearchResult->SetHistoryIcon(mTimeStamp, std::move(data),
surface->GetSize().width,
surface->GetSize().height, mIconIndex);
return NS_OK;
}
void nsGNOMEShellSearchProvider::HandleSearchResultSet(
GVariant* aParameters, GDBusMethodInvocation* aInvocation,
bool aInitialSearch) {
// Discard any existing search results.
mSearchResult = nullptr;
RefPtr<nsGNOMEShellHistorySearchResult> newSearch =
new nsGNOMEShellHistorySearchResult(this, mConnection,
mSearchResultTimeStamp);
mSearchResultTimeStamp++;
newSearch->SetTimeStamp(mSearchResultTimeStamp);
// Send the search request over DBus. We'll get reply over DBus it will be
// set to mSearchResult by nsGNOMEShellSearchProvider::SetSearchResult().
DBusHandleResultSet(newSearch.forget(), aParameters, aInitialSearch,
aInvocation);
}
void nsGNOMEShellSearchProvider::HandleResultMetas(
GVariant* aParameters, GDBusMethodInvocation* aInvocation) {
if (mSearchResult) {
DBusHandleResultMetas(mSearchResult, aParameters, aInvocation);
}
}
void nsGNOMEShellSearchProvider::ActivateResult(
GVariant* aParameters, GDBusMethodInvocation* aInvocation) {
if (mSearchResult) {
DBusActivateResult(mSearchResult, aParameters, aInvocation);
}
}
void nsGNOMEShellSearchProvider::LaunchSearch(
GVariant* aParameters, GDBusMethodInvocation* aInvocation) {
if (mSearchResult) {
DBusLaunchSearch(mSearchResult, aParameters, aInvocation);
}
}
static void HandleMethodCall(GDBusConnection* aConnection, const gchar* aSender,
const gchar* aObjectPath,
const gchar* aInterfaceName,
const gchar* aMethodName, GVariant* aParameters,
GDBusMethodInvocation* aInvocation,
gpointer aUserData) {
MOZ_ASSERT(aUserData);
MOZ_ASSERT(NS_IsMainThread());
if (strcmp("org.gnome.Shell.SearchProvider2", aInterfaceName) == 0) {
if (strcmp("GetInitialResultSet", aMethodName) == 0) {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)
->HandleSearchResultSet(aParameters, aInvocation,
/* aInitialSearch */ true);
} else if (strcmp("GetSubsearchResultSet", aMethodName) == 0) {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)
->HandleSearchResultSet(aParameters, aInvocation,
/* aInitialSearch */ false);
} else if (strcmp("GetResultMetas", aMethodName) == 0) {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->HandleResultMetas(
aParameters, aInvocation);
} else if (strcmp("ActivateResult", aMethodName) == 0) {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->ActivateResult(
aParameters, aInvocation);
} else if (strcmp("LaunchSearch", aMethodName) == 0) {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->LaunchSearch(
aParameters, aInvocation);
} else {
g_warning(
"nsGNOMEShellSearchProvider: HandleMethodCall() wrong method %s",
aMethodName);
}
}
}
static GVariant* HandleGetProperty(GDBusConnection* aConnection,
const gchar* aSender,
const gchar* aObjectPath,
const gchar* aInterfaceName,
const gchar* aPropertyName, GError** aError,
gpointer aUserData) {
MOZ_ASSERT(aUserData);
MOZ_ASSERT(NS_IsMainThread());
g_set_error(aError, G_IO_ERROR, G_IO_ERROR_FAILED,
"%s:%s setting is not supported", aInterfaceName, aPropertyName);
return nullptr;
}
static gboolean HandleSetProperty(GDBusConnection* aConnection,
const gchar* aSender,
const gchar* aObjectPath,
const gchar* aInterfaceName,
const gchar* aPropertyName, GVariant* aValue,
GError** aError, gpointer aUserData) {
MOZ_ASSERT(aUserData);
MOZ_ASSERT(NS_IsMainThread());
g_set_error(aError, G_IO_ERROR, G_IO_ERROR_FAILED,
"%s:%s setting is not supported", aInterfaceName, aPropertyName);
return false;
}
static const GDBusInterfaceVTable gInterfaceVTable = {
HandleMethodCall, HandleGetProperty, HandleSetProperty};
void nsGNOMEShellSearchProvider::OnBusAcquired(GDBusConnection* aConnection) {
GUniquePtr<GError> error;
mIntrospectionData = dont_AddRef(g_dbus_node_info_new_for_xml(
introspect_template, getter_Transfers(error)));
if (!mIntrospectionData) {
g_warning(
"nsGNOMEShellSearchProvider: g_dbus_node_info_new_for_xml() failed! %s",
error->message);
return;
}
mRegistrationId = g_dbus_connection_register_object(
aConnection, GetDBusObjectPath(), mIntrospectionData->interfaces[0],
&gInterfaceVTable, this, /* user_data */
nullptr, /* user_data_free_func */
getter_Transfers(error)); /* GError** */
if (mRegistrationId == 0) {
g_warning(
"nsGNOMEShellSearchProvider: g_dbus_connection_register_object() "
"failed! %s",
error->message);
return;
}
}
void nsGNOMEShellSearchProvider::OnNameAcquired(GDBusConnection* aConnection) {
mConnection = aConnection;
}
void nsGNOMEShellSearchProvider::OnNameLost(GDBusConnection* aConnection) {
mConnection = nullptr;
if (!mRegistrationId) {
return;
}
if (g_dbus_connection_unregister_object(aConnection, mRegistrationId)) {
mRegistrationId = 0;
}
}
nsresult nsGNOMEShellSearchProvider::Startup() {
if (mDBusID) {
// We're already connected so we don't need to reconnect
return NS_ERROR_ALREADY_INITIALIZED;
}
mDBusID = g_bus_own_name(
G_BUS_TYPE_SESSION, GetDBusBusName(), G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE,
[](GDBusConnection* aConnection, const gchar*,
gpointer aUserData) -> void {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->OnBusAcquired(
aConnection);
},
[](GDBusConnection* aConnection, const gchar*,
gpointer aUserData) -> void {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->OnNameAcquired(
aConnection);
},
[](GDBusConnection* aConnection, const gchar*,
gpointer aUserData) -> void {
static_cast<nsGNOMEShellSearchProvider*>(aUserData)->OnNameLost(
aConnection);
},
this, nullptr);
if (!mDBusID) {
g_warning("nsGNOMEShellSearchProvider: g_bus_own_name() failed!");
return NS_ERROR_FAILURE;
}
mSearchResultTimeStamp = 0;
return NS_OK;
}
void nsGNOMEShellSearchProvider::Shutdown() {
OnNameLost(mConnection);
if (mDBusID) {
g_bus_unown_name(mDBusID);
mDBusID = 0;
}
mIntrospectionData = nullptr;
}
bool nsGNOMEShellSearchProvider::SetSearchResult(
RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult) {
MOZ_ASSERT(!mSearchResult);
if (mSearchResultTimeStamp != aSearchResult->GetTimeStamp()) {
NS_WARNING("Time stamp mismatch.");
return false;
}
mSearchResult = aSearchResult;
return true;
}
static void DispatchSearchResults(
RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult,
nsCOMPtr<nsINavHistoryContainerResultNode> aHistResultContainer) {
aSearchResult->ReceiveSearchResultContainer(aHistResultContainer);
}
nsresult nsGNOMEShellHistoryService::QueryHistory(
RefPtr<nsGNOMEShellHistorySearchResult> aSearchResult) {
if (!mHistoryService) {
mHistoryService = do_GetService(NS_NAVHISTORYSERVICE_CONTRACTID);
if (!mHistoryService) {
return NS_ERROR_FAILURE;
}
}
nsresult rv;
nsCOMPtr<nsINavHistoryQuery> histQuery;
rv = mHistoryService->GetNewQuery(getter_AddRefs(histQuery));
NS_ENSURE_SUCCESS(rv, rv);
rv = histQuery->SetSearchTerms(
NS_ConvertUTF8toUTF16(aSearchResult->GetSearchTerm()));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINavHistoryQueryOptions> histQueryOpts;
rv = mHistoryService->GetNewQueryOptions(getter_AddRefs(histQueryOpts));
NS_ENSURE_SUCCESS(rv, rv);
rv = histQueryOpts->SetSortingMode(
nsINavHistoryQueryOptions::SORT_BY_FRECENCY_DESCENDING);
NS_ENSURE_SUCCESS(rv, rv);
rv = histQueryOpts->SetMaxResults(MAX_SEARCH_RESULTS_NUM);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINavHistoryResult> histResult;
rv = mHistoryService->ExecuteQuery(histQuery, histQueryOpts,
getter_AddRefs(histResult));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsINavHistoryContainerResultNode> resultContainer;
rv = histResult->GetRoot(getter_AddRefs(resultContainer));
NS_ENSURE_SUCCESS(rv, rv);
rv = resultContainer->SetContainerOpen(true);
NS_ENSURE_SUCCESS(rv, rv);
// Simulate async searching by delayed reply. This search API will
// likely become async in the future and we want to be sure to not rely on
// its current synchronous behavior.
MOZ_ASSERT(MessageLoop::current());
MessageLoop::current()->PostTask(
NewRunnableFunction("Gnome shell search results", &DispatchSearchResults,
aSearchResult, resultContainer));
return NS_OK;
}
static void DBusGetIDKeyForURI(int aIndex, nsAutoCString& aUri,
nsAutoCString& aIDKey) {
// Compose ID as NN:URL where NN is index to our current history
// result container.
aIDKey = nsPrintfCString("%.2d:%s", aIndex, aUri.get());
}
// Send (as) rearch result reply
void nsGNOMEShellHistorySearchResult::HandleSearchResultReply() {
MOZ_ASSERT(mReply);
GVariantBuilder b;
g_variant_builder_init(&b, G_VARIANT_TYPE("as"));
uint32_t childCount = 0;
nsresult rv = mHistResultContainer->GetChildCount(&childCount);
if (NS_SUCCEEDED(rv) && childCount > 0) {
// Obtain the favicon service and get the favicon for the specified page
nsCOMPtr<nsIFaviconService> favIconSvc(
do_GetService("@mozilla.org/browser/favicon-service;1"));
nsCOMPtr<nsIIOService> ios(do_GetService(NS_IOSERVICE_CONTRACTID));
if (childCount > MAX_SEARCH_RESULTS_NUM) {
childCount = MAX_SEARCH_RESULTS_NUM;
}
for (uint32_t i = 0; i < childCount; i++) {
nsCOMPtr<nsINavHistoryResultNode> child;
rv = mHistResultContainer->GetChild(i, getter_AddRefs(child));
if (NS_WARN_IF(NS_FAILED(rv))) {
continue;
}
if (!IsHistoryResultNodeURI(child)) {
continue;
}
nsAutoCString uri;
child->GetUri(uri);
nsCOMPtr<nsIURI> iconIri;
ios->NewURI(uri, nullptr, nullptr, getter_AddRefs(iconIri));
nsCOMPtr<nsIFaviconDataCallback> callback =
new AsyncFaviconDataReady(this, i, mTimeStamp);
favIconSvc->GetFaviconDataForPage(iconIri, callback, 0);
nsAutoCString idKey;
DBusGetIDKeyForURI(i, uri, idKey);
g_variant_builder_add(&b, "s", idKey.get());
}
}
nsPrintfCString searchString("%s:%s", KEYWORD_SEARCH_STRING,
mSearchTerm.get());
g_variant_builder_add(&b, "s", searchString.get());
GVariant* v = g_variant_builder_end(&b);
g_dbus_method_invocation_return_value(mReply, g_variant_new_tuple(&v, 1));
mReply = nullptr;
}
void nsGNOMEShellHistorySearchResult::ReceiveSearchResultContainer(
nsCOMPtr<nsINavHistoryContainerResultNode> aHistResultContainer) {
// Propagate search results to nsGNOMEShellSearchProvider.
// SetSearchResult() checks this is up-to-date search (our time stamp matches
// latest requested search timestamp).
if (mSearchProvider->SetSearchResult(this)) {
mHistResultContainer = aHistResultContainer;
HandleSearchResultReply();
}
}
void nsGNOMEShellHistorySearchResult::SetHistoryIcon(int aTimeStamp,
UniquePtr<uint8_t[]> aData,
int aWidth, int aHeight,
int aIconIndex) {
MOZ_ASSERT(mTimeStamp == aTimeStamp);
MOZ_RELEASE_ASSERT(aIconIndex < MAX_SEARCH_RESULTS_NUM);
mHistoryIcons[aIconIndex].Set(mTimeStamp, std::move(aData), aWidth, aHeight);
}
GnomeHistoryIcon* nsGNOMEShellHistorySearchResult::GetHistoryIcon(
int aIconIndex) {
MOZ_RELEASE_ASSERT(aIconIndex < MAX_SEARCH_RESULTS_NUM);
if (mHistoryIcons[aIconIndex].GetTimeStamp() == mTimeStamp &&
mHistoryIcons[aIconIndex].IsLoaded()) {
return mHistoryIcons + aIconIndex;
}
return nullptr;
}
nsGNOMEShellHistoryService* GetGNOMEShellHistoryService() {
static nsGNOMEShellHistoryService gGNOMEShellHistoryService;
return &gGNOMEShellHistoryService;
}
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