/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* 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 "mozilla/Attributes.h" #include "mozilla/DebugOnly.h" #include "mozilla/MemoryReporting.h" #include "mozilla/dom/ContentChild.h" #include "mozilla/dom/ContentParent.h" #include "mozilla/dom/BrowserChild.h" #include "nsXULAppAPI.h" #include "History.h" #include "nsNavHistory.h" #include "nsNavBookmarks.h" #include "Helpers.h" #include "PlaceInfo.h" #include "VisitInfo.h" #include "nsPlacesMacros.h" #include "mozilla/storage.h" #include "mozilla/dom/Link.h" #include "nsDocShellCID.h" #include "mozilla/Services.h" #include "nsThreadUtils.h" #include "nsNetUtil.h" #include "nsIFileURL.h" #include "nsIWidget.h" #include "nsIXPConnect.h" #include "nsIXULRuntime.h" #include "mozilla/Unused.h" #include "nsContentUtils.h" // for nsAutoScriptBlocker #include "nsJSUtils.h" #include "mozilla/ipc/URIUtils.h" #include "nsPrintfCString.h" #include "nsTHashtable.h" #include "jsapi.h" #include "mozilla/dom/ContentProcessMessageManager.h" #include "mozilla/dom/Element.h" #include "mozilla/dom/PlacesObservers.h" #include "mozilla/dom/PlacesVisit.h" #include "mozilla/dom/ScriptSettings.h" // Initial size for the cache holding visited status observers. #define VISIT_OBSERVERS_INITIAL_CACHE_LENGTH 64 using namespace mozilla::dom; using namespace mozilla::ipc; using mozilla::Unused; namespace mozilla { namespace places { //////////////////////////////////////////////////////////////////////////////// //// Global Defines #define URI_VISITED "visited" #define URI_NOT_VISITED "not visited" #define URI_VISITED_RESOLUTION_TOPIC "visited-status-resolution" // Observer event fired after a visit has been registered in the DB. #define URI_VISIT_SAVED "uri-visit-saved" #define DESTINATIONFILEURI_ANNO \ NS_LITERAL_CSTRING("downloads/destinationFileURI") //////////////////////////////////////////////////////////////////////////////// //// VisitData struct VisitData { VisitData() : placeId(0), visitId(0), hidden(true), shouldUpdateHidden(true), typed(false), transitionType(UINT32_MAX), visitTime(0), frecency(-1), lastVisitId(0), lastVisitTime(0), visitCount(0), referrerVisitId(0), titleChanged(false), shouldUpdateFrecency(true), useFrecencyRedirectBonus(false) { guid.SetIsVoid(true); title.SetIsVoid(true); } explicit VisitData(nsIURI* aURI, nsIURI* aReferrer = nullptr) : placeId(0), visitId(0), hidden(true), shouldUpdateHidden(true), typed(false), transitionType(UINT32_MAX), visitTime(0), frecency(-1), lastVisitId(0), lastVisitTime(0), visitCount(0), referrerVisitId(0), titleChanged(false), shouldUpdateFrecency(true), useFrecencyRedirectBonus(false) { MOZ_ASSERT(aURI); if (aURI) { (void)aURI->GetSpec(spec); (void)GetReversedHostname(aURI, revHost); } if (aReferrer) { (void)aReferrer->GetSpec(referrerSpec); } guid.SetIsVoid(true); title.SetIsVoid(true); } /** * Sets the transition type of the visit, as well as if it was typed. * * @param aTransitionType * The transition type constant to set. Must be one of the * TRANSITION_ constants on nsINavHistoryService. */ void SetTransitionType(uint32_t aTransitionType) { typed = aTransitionType == nsINavHistoryService::TRANSITION_TYPED; transitionType = aTransitionType; } int64_t placeId; nsCString guid; int64_t visitId; nsCString spec; nsString revHost; bool hidden; bool shouldUpdateHidden; bool typed; uint32_t transitionType; PRTime visitTime; int32_t frecency; int64_t lastVisitId; PRTime lastVisitTime; uint32_t visitCount; /** * Stores the title. If this is empty (IsEmpty() returns true), then the * title should be removed from the Place. If the title is void (IsVoid() * returns true), then no title has been set on this object, and titleChanged * should remain false. */ nsString title; nsCString referrerSpec; int64_t referrerVisitId; // TODO bug 626836 hook up hidden and typed change tracking too! bool titleChanged; // Indicates whether frecency should be updated for this visit. bool shouldUpdateFrecency; // Whether to override the visit type bonus with a redirect bonus when // calculating frecency on the most recent visit. bool useFrecencyRedirectBonus; }; //////////////////////////////////////////////////////////////////////////////// //// Anonymous Helpers namespace { /** * Convert the given js value to a js array. * * @param [in] aValue * the JS value to convert. * @param [in] aCtx * The JSContext for aValue. * @param [out] _array * the JS array. * @param [out] _arrayLength * _array's length. */ nsresult GetJSArrayFromJSValue(JS::Handle aValue, JSContext* aCtx, JS::MutableHandle _array, uint32_t* _arrayLength) { if (aValue.isObjectOrNull()) { JS::Rooted val(aCtx, aValue.toObjectOrNull()); bool isArray; if (!JS_IsArrayObject(aCtx, val, &isArray)) { return NS_ERROR_UNEXPECTED; } if (isArray) { _array.set(val); (void)JS_GetArrayLength(aCtx, _array, _arrayLength); NS_ENSURE_ARG(*_arrayLength > 0); return NS_OK; } } // Build a temporary array to store this one item so the code below can // just loop. *_arrayLength = 1; _array.set(JS_NewArrayObject(aCtx, 0)); NS_ENSURE_TRUE(_array, NS_ERROR_OUT_OF_MEMORY); bool rc = JS_DefineElement(aCtx, _array, 0, aValue, 0); NS_ENSURE_TRUE(rc, NS_ERROR_UNEXPECTED); return NS_OK; } /** * Attemps to convert a given js value to a nsIURI object. * @param aCtx * The JSContext for aValue. * @param aValue * The JS value to convert. * @return the nsIURI object, or null if aValue is not a nsIURI object. */ already_AddRefed GetJSValueAsURI(JSContext* aCtx, const JS::Value& aValue) { if (!aValue.isPrimitive()) { nsCOMPtr xpc = nsIXPConnect::XPConnect(); nsCOMPtr wrappedObj; nsresult rv = xpc->GetWrappedNativeOfJSObject(aCtx, aValue.toObjectOrNull(), getter_AddRefs(wrappedObj)); NS_ENSURE_SUCCESS(rv, nullptr); nsCOMPtr uri = do_QueryInterface(wrappedObj->Native()); return uri.forget(); } return nullptr; } /** * Obtains an nsIURI from the "uri" property of a JSObject. * * @param aCtx * The JSContext for aObject. * @param aObject * The JSObject to get the URI from. * @param aProperty * The name of the property to get the URI from. * @return the URI if it exists. */ already_AddRefed GetURIFromJSObject(JSContext* aCtx, JS::Handle aObject, const char* aProperty) { JS::Rooted uriVal(aCtx); bool rc = JS_GetProperty(aCtx, aObject, aProperty, &uriVal); NS_ENSURE_TRUE(rc, nullptr); return GetJSValueAsURI(aCtx, uriVal); } /** * Attemps to convert a JS value to a string. * @param aCtx * The JSContext for aObject. * @param aValue * The JS value to convert. * @param _string * The string to populate with the value, or set it to void. */ void GetJSValueAsString(JSContext* aCtx, const JS::Value& aValue, nsString& _string) { if (aValue.isUndefined() || !(aValue.isNull() || aValue.isString())) { _string.SetIsVoid(true); return; } // |null| in JS maps to the empty string. if (aValue.isNull()) { _string.Truncate(); return; } if (!AssignJSString(aCtx, _string, aValue.toString())) { _string.SetIsVoid(true); } } /** * Obtains the specified property of a JSObject. * * @param aCtx * The JSContext for aObject. * @param aObject * The JSObject to get the string from. * @param aProperty * The property to get the value from. * @param _string * The string to populate with the value, or set it to void. */ void GetStringFromJSObject(JSContext* aCtx, JS::Handle aObject, const char* aProperty, nsString& _string) { JS::Rooted val(aCtx); bool rc = JS_GetProperty(aCtx, aObject, aProperty, &val); if (!rc) { _string.SetIsVoid(true); return; } else { GetJSValueAsString(aCtx, val, _string); } } /** * Obtains the specified property of a JSObject. * * @param aCtx * The JSContext for aObject. * @param aObject * The JSObject to get the int from. * @param aProperty * The property to get the value from. * @param _int * The integer to populate with the value on success. */ template nsresult GetIntFromJSObject(JSContext* aCtx, JS::Handle aObject, const char* aProperty, IntType* _int) { JS::Rooted value(aCtx); bool rc = JS_GetProperty(aCtx, aObject, aProperty, &value); NS_ENSURE_TRUE(rc, NS_ERROR_UNEXPECTED); if (value.isUndefined()) { return NS_ERROR_INVALID_ARG; } NS_ENSURE_ARG(value.isPrimitive()); NS_ENSURE_ARG(value.isNumber()); double num; rc = JS::ToNumber(aCtx, value, &num); NS_ENSURE_TRUE(rc, NS_ERROR_UNEXPECTED); NS_ENSURE_ARG(IntType(num) == num); *_int = IntType(num); return NS_OK; } /** * Obtains the specified property of a JSObject. * * @pre aArray must be an Array object. * * @param aCtx * The JSContext for aArray. * @param aArray * The JSObject to get the object from. * @param aIndex * The index to get the object from. * @param objOut * Set to the JSObject pointer on success. */ nsresult GetJSObjectFromArray(JSContext* aCtx, JS::Handle aArray, uint32_t aIndex, JS::MutableHandle objOut) { JS::Rooted value(aCtx); bool rc = JS_GetElement(aCtx, aArray, aIndex, &value); NS_ENSURE_TRUE(rc, NS_ERROR_UNEXPECTED); NS_ENSURE_ARG(!value.isPrimitive()); objOut.set(&value.toObject()); return NS_OK; } class VisitedQuery final : public AsyncStatementCallback, public mozIStorageCompletionCallback { public: NS_DECL_ISUPPORTS_INHERITED static nsresult Start(nsIURI* aURI, mozIVisitedStatusCallback* aCallback = nullptr) { MOZ_ASSERT(aURI, "Null URI"); // If we are a content process, always remote the request to the // parent process. if (XRE_IsContentProcess()) { URIParams uri; SerializeURI(aURI, uri); mozilla::dom::ContentChild* cpc = mozilla::dom::ContentChild::GetSingleton(); NS_ASSERTION(cpc, "Content Protocol is NULL!"); (void)cpc->SendStartVisitedQuery(uri); return NS_OK; } nsMainThreadPtrHandle callback( new nsMainThreadPtrHolder( "mozIVisitedStatusCallback", aCallback)); nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); NS_ENSURE_STATE(navHistory); if (navHistory->hasEmbedVisit(aURI)) { RefPtr cb = new VisitedQuery(aURI, callback, true); NS_ENSURE_TRUE(cb, NS_ERROR_OUT_OF_MEMORY); // As per IHistory contract, we must notify asynchronously. NS_DispatchToMainThread( NewRunnableMethod("places::VisitedQuery::NotifyVisitedStatus", cb, &VisitedQuery::NotifyVisitedStatus)); return NS_OK; } History* history = History::GetService(); NS_ENSURE_STATE(history); RefPtr cb = new VisitedQuery(aURI, callback); NS_ENSURE_TRUE(cb, NS_ERROR_OUT_OF_MEMORY); nsresult rv = history->GetIsVisitedStatement(cb); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } // Note: the return value matters here. We call into this method, it's not // just xpcom boilerplate. NS_IMETHOD Complete(nsresult aResult, nsISupports* aStatement) override { NS_ENSURE_SUCCESS(aResult, aResult); nsCOMPtr stmt = do_QueryInterface(aStatement); NS_ENSURE_STATE(stmt); // Bind by index for performance. nsresult rv = URIBinder::Bind(stmt, 0, mURI); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr handle; return stmt->ExecuteAsync(this, getter_AddRefs(handle)); } NS_IMETHOD HandleResult(mozIStorageResultSet* aResults) override { // If this method is called, we've gotten results, which means we have a // visit. mIsVisited = true; return NS_OK; } NS_IMETHOD HandleError(mozIStorageError* aError) override { // mIsVisited is already set to false, and that's the assumption we will // make if an error occurred. return NS_OK; } NS_IMETHOD HandleCompletion(uint16_t aReason) override { if (aReason != mozIStorageStatementCallback::REASON_FINISHED) { return NS_OK; } nsresult rv = NotifyVisitedStatus(); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } nsresult NotifyVisitedStatus() { // If an external handling callback is provided, just notify through it. if (!!mCallback) { mCallback->IsVisited(mURI, mIsVisited); return NS_OK; } if (mIsVisited) { History* history = History::GetService(); NS_ENSURE_STATE(history); history->NotifyVisited(mURI); if (BrowserTabsRemoteAutostart()) { AutoTArray uris; URIParams uri; SerializeURI(mURI, uri); uris.AppendElement(std::move(uri)); history->NotifyVisitedParent(uris); } } nsCOMPtr observerService = mozilla::services::GetObserverService(); if (observerService) { nsAutoString status; if (mIsVisited) { status.AssignLiteral(URI_VISITED); } else { status.AssignLiteral(URI_NOT_VISITED); } (void)observerService->NotifyObservers(mURI, URI_VISITED_RESOLUTION_TOPIC, status.get()); } return NS_OK; } private: explicit VisitedQuery( nsIURI* aURI, const nsMainThreadPtrHandle& aCallback, bool aIsVisited = false) : mURI(aURI), mCallback(aCallback), mIsVisited(aIsVisited) {} ~VisitedQuery() {} nsCOMPtr mURI; nsMainThreadPtrHandle mCallback; bool mIsVisited; }; NS_IMPL_ISUPPORTS_INHERITED(VisitedQuery, AsyncStatementCallback, mozIStorageCompletionCallback) /** * Notifies observers about a visit or an array of visits. */ class NotifyManyVisitsObservers : public Runnable { public: explicit NotifyManyVisitsObservers(const VisitData& aPlace) : Runnable("places::NotifyManyVisitsObservers"), mPlace(aPlace), mHistory(History::GetService()) {} explicit NotifyManyVisitsObservers(nsTArray& aPlaces) : Runnable("places::NotifyManyVisitsObservers"), mHistory(History::GetService()) { aPlaces.SwapElements(mPlaces); } nsresult NotifyVisit(nsNavHistory* aNavHistory, nsCOMPtr& aObsService, PRTime aNow, nsIURI* aURI, const VisitData& aPlace) { if (aObsService) { DebugOnly rv = aObsService->NotifyObservers(aURI, URI_VISIT_SAVED, nullptr); NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Could not notify observers"); } if (aNow - aPlace.visitTime < RECENTLY_VISITED_URIS_MAX_AGE) { mHistory->AppendToRecentlyVisitedURIs(aURI, aPlace.hidden); } mHistory->NotifyVisited(aURI); if (aPlace.titleChanged) { aNavHistory->NotifyTitleChange(aURI, aPlace.title, aPlace.guid); } aNavHistory->UpdateDaysOfHistory(aPlace.visitTime); return NS_OK; } void AddPlaceForNotify(const VisitData& aPlace, nsIURI* aURI, Sequence>& aEvents) { if (aPlace.transitionType != nsINavHistoryService::TRANSITION_EMBED) { RefPtr vd = new PlacesVisit(); vd->mVisitId = aPlace.visitId; vd->mUrl.Assign(NS_ConvertUTF8toUTF16(aPlace.spec)); vd->mVisitTime = aPlace.visitTime / 1000; vd->mReferringVisitId = aPlace.referrerVisitId; vd->mTransitionType = aPlace.transitionType; vd->mPageGuid.Assign(aPlace.guid); vd->mHidden = aPlace.hidden; vd->mVisitCount = aPlace.visitCount + 1; // Add current visit vd->mTypedCount = static_cast(aPlace.typed); vd->mLastKnownTitle.Assign(aPlace.title); bool success = !!aEvents.AppendElement(vd.forget(), fallible); MOZ_RELEASE_ASSERT(success); } } // MOZ_CAN_RUN_SCRIPT_BOUNDARY until Runnable::Run is marked // MOZ_CAN_RUN_SCRIPT. See bug 1535398. MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); // We are in the main thread, no need to lock. if (mHistory->IsShuttingDown()) { // If we are shutting down, we cannot notify the observers. return NS_OK; } nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); if (!navHistory) { NS_WARNING( "Trying to notify visits observers but cannot get the history " "service!"); return NS_OK; } nsCOMPtr obsService = mozilla::services::GetObserverService(); Sequence> events; nsCOMArray uris; if (mPlaces.Length() > 0) { for (uint32_t i = 0; i < mPlaces.Length(); ++i) { nsCOMPtr uri; MOZ_ALWAYS_SUCCEEDS(NS_NewURI(getter_AddRefs(uri), mPlaces[i].spec)); if (!uri) { return NS_ERROR_UNEXPECTED; } AddPlaceForNotify(mPlaces[i], uri, events); uris.AppendElement(uri.forget()); } } else { nsCOMPtr uri; MOZ_ALWAYS_SUCCEEDS(NS_NewURI(getter_AddRefs(uri), mPlace.spec)); if (!uri) { return NS_ERROR_UNEXPECTED; } AddPlaceForNotify(mPlace, uri, events); uris.AppendElement(uri.forget()); } if (events.Length() > 0) { PlacesObservers::NotifyListeners(events); } PRTime now = PR_Now(); if (mPlaces.Length() > 0) { nsTArray serializableUris(mPlaces.Length()); for (uint32_t i = 0; i < mPlaces.Length(); ++i) { nsresult rv = NotifyVisit(navHistory, obsService, now, uris[i], mPlaces[i]); NS_ENSURE_SUCCESS(rv, rv); if (BrowserTabsRemoteAutostart()) { URIParams serializedUri; SerializeURI(uris[i], serializedUri); serializableUris.AppendElement(std::move(serializedUri)); } } mHistory->NotifyVisitedParent(serializableUris); } else { AutoTArray serializableUris; nsresult rv = NotifyVisit(navHistory, obsService, now, uris[0], mPlace); NS_ENSURE_SUCCESS(rv, rv); if (BrowserTabsRemoteAutostart()) { URIParams serializedUri; SerializeURI(uris[0], serializedUri); serializableUris.AppendElement(std::move(serializedUri)); mHistory->NotifyVisitedParent(serializableUris); } } return NS_OK; } private: nsTArray mPlaces; VisitData mPlace; RefPtr mHistory; }; /** * Notifies observers about a pages title changing. */ class NotifyTitleObservers : public Runnable { public: /** * Notifies observers on the main thread. * * @param aSpec * The spec of the URI to notify about. * @param aTitle * The new title to notify about. */ NotifyTitleObservers(const nsCString& aSpec, const nsString& aTitle, const nsCString& aGUID) : Runnable("places::NotifyTitleObservers"), mSpec(aSpec), mTitle(aTitle), mGUID(aGUID) {} NS_IMETHOD Run() override { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); NS_ENSURE_TRUE(navHistory, NS_ERROR_OUT_OF_MEMORY); nsCOMPtr uri; MOZ_ALWAYS_SUCCEEDS(NS_NewURI(getter_AddRefs(uri), mSpec)); if (!uri) { return NS_ERROR_UNEXPECTED; } navHistory->NotifyTitleChange(uri, mTitle, mGUID); return NS_OK; } private: const nsCString mSpec; const nsString mTitle; const nsCString mGUID; }; /** * Helper class for methods which notify their callers through the * mozIVisitInfoCallback interface. */ class NotifyPlaceInfoCallback : public Runnable { public: NotifyPlaceInfoCallback( const nsMainThreadPtrHandle& aCallback, const VisitData& aPlace, bool aIsSingleVisit, nsresult aResult) : Runnable("places::NotifyPlaceInfoCallback"), mCallback(aCallback), mPlace(aPlace), mResult(aResult), mIsSingleVisit(aIsSingleVisit) { MOZ_ASSERT(aCallback, "Must pass a non-null callback!"); } NS_IMETHOD Run() override { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); bool hasValidURIs = true; nsCOMPtr referrerURI; if (!mPlace.referrerSpec.IsEmpty()) { MOZ_ALWAYS_SUCCEEDS( NS_NewURI(getter_AddRefs(referrerURI), mPlace.referrerSpec)); hasValidURIs = !!referrerURI; } nsCOMPtr uri; MOZ_ALWAYS_SUCCEEDS(NS_NewURI(getter_AddRefs(uri), mPlace.spec)); hasValidURIs = hasValidURIs && !!uri; nsCOMPtr place; if (mIsSingleVisit) { nsCOMPtr visit = new VisitInfo(mPlace.visitId, mPlace.visitTime, mPlace.transitionType, referrerURI.forget()); PlaceInfo::VisitsArray visits; (void)visits.AppendElement(visit); // The frecency isn't exposed because it may not reflect the updated value // in the case of InsertVisitedURIs. place = new PlaceInfo(mPlace.placeId, mPlace.guid, uri.forget(), mPlace.title, -1, visits); } else { // Same as above. place = new PlaceInfo(mPlace.placeId, mPlace.guid, uri.forget(), mPlace.title, -1); } if (NS_SUCCEEDED(mResult) && hasValidURIs) { (void)mCallback->HandleResult(place); } else { (void)mCallback->HandleError(mResult, place); } return NS_OK; } private: nsMainThreadPtrHandle mCallback; VisitData mPlace; const nsresult mResult; bool mIsSingleVisit; }; /** * Notifies a callback object when the operation is complete. */ class NotifyCompletion : public Runnable { public: explicit NotifyCompletion( const nsMainThreadPtrHandle& aCallback, uint32_t aUpdatedCount = 0) : Runnable("places::NotifyCompletion"), mCallback(aCallback), mUpdatedCount(aUpdatedCount) { MOZ_ASSERT(aCallback, "Must pass a non-null callback!"); } NS_IMETHOD Run() override { if (NS_IsMainThread()) { (void)mCallback->HandleCompletion(mUpdatedCount); } else { (void)NS_DispatchToMainThread(this); } return NS_OK; } private: nsMainThreadPtrHandle mCallback; uint32_t mUpdatedCount; }; /** * Checks to see if we can add aURI to history, and dispatches an error to * aCallback (if provided) if we cannot. * * @param aURI * The URI to check. * @param [optional] aGUID * The guid of the URI to check. This is passed back to the callback. * @param [optional] aCallback * The callback to notify if the URI cannot be added to history. * @return true if the URI can be added to history, false otherwise. */ bool CanAddURI(nsIURI* aURI, const nsCString& aGUID = EmptyCString(), mozIVisitInfoCallback* aCallback = nullptr) { MOZ_ASSERT(NS_IsMainThread()); nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); NS_ENSURE_TRUE(navHistory, false); bool canAdd; nsresult rv = navHistory->CanAddURI(aURI, &canAdd); if (NS_SUCCEEDED(rv) && canAdd) { return true; }; // We cannot add the URI. Notify the callback, if we were given one. if (aCallback) { VisitData place(aURI); place.guid = aGUID; nsMainThreadPtrHandle callback( new nsMainThreadPtrHolder( "mozIVisitInfoCallback", aCallback)); nsCOMPtr event = new NotifyPlaceInfoCallback( callback, place, true, NS_ERROR_INVALID_ARG); (void)NS_DispatchToMainThread(event); } return false; } class NotifyManyFrecenciesChanged final : public Runnable { public: NotifyManyFrecenciesChanged() : Runnable("places::NotifyManyFrecenciesChanged") {} NS_IMETHOD Run() override { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); NS_ENSURE_STATE(navHistory); navHistory->NotifyManyFrecenciesChanged(); return NS_OK; } }; /** * Adds a visit to the database. */ class InsertVisitedURIs final : public Runnable { public: /** * Adds a visit to the database asynchronously. * * @param aConnection * The database connection to use for these operations. * @param aPlaces * The locations to record visits. * @param [optional] aCallback * The callback to notify about the visit. * @param [optional] aGroupNotifications * Whether to group any observer notifications rather than * sending them out individually. */ static nsresult Start(mozIStorageConnection* aConnection, nsTArray& aPlaces, mozIVisitInfoCallback* aCallback = nullptr, bool aGroupNotifications = false, uint32_t aInitialUpdatedCount = 0) { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); MOZ_ASSERT(aPlaces.Length() > 0, "Must pass a non-empty array!"); // Make sure nsNavHistory service is up before proceeding: nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); MOZ_ASSERT(navHistory, "Could not get nsNavHistory?!"); if (!navHistory) { return NS_ERROR_FAILURE; } nsMainThreadPtrHandle callback( new nsMainThreadPtrHolder( "mozIVisitInfoCallback", aCallback)); bool ignoreErrors = false, ignoreResults = false; if (aCallback) { // We ignore errors from either of these methods in case old JS consumers // don't implement them (in which case they will get error/result // notifications as normal). Unused << aCallback->GetIgnoreErrors(&ignoreErrors); Unused << aCallback->GetIgnoreResults(&ignoreResults); } RefPtr event = new InsertVisitedURIs( aConnection, aPlaces, callback, aGroupNotifications, ignoreErrors, ignoreResults, aInitialUpdatedCount); // Get the target thread, and then start the work! nsCOMPtr target = do_GetInterface(aConnection); NS_ENSURE_TRUE(target, NS_ERROR_UNEXPECTED); nsresult rv = target->Dispatch(event, NS_DISPATCH_NORMAL); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } NS_IMETHOD Run() override { MOZ_ASSERT(!NS_IsMainThread(), "This should not be called on the main thread"); // The inner run method may bail out at any point, so we ensure we do // whatever we can and then notify the main thread we're done. nsresult rv = InnerRun(); if (mSuccessfulUpdatedCount > 0 && mGroupNotifications) { NS_DispatchToMainThread(new NotifyManyFrecenciesChanged()); } if (!!mCallback) { NS_DispatchToMainThread( new NotifyCompletion(mCallback, mSuccessfulUpdatedCount)); } return rv; } nsresult InnerRun() { // Prevent the main thread from shutting down while this is running. MutexAutoLock lockedScope(mHistory->GetShutdownMutex()); if (mHistory->IsShuttingDown()) { // If we were already shutting down, we cannot insert the URIs. return NS_OK; } mozStorageTransaction transaction( mDBConn, false, mozIStorageConnection::TRANSACTION_IMMEDIATE); const VisitData* lastFetchedPlace = nullptr; uint32_t lastFetchedVisitCount = 0; bool shouldChunkNotifications = mPlaces.Length() > NOTIFY_VISITS_CHUNK_SIZE; nsTArray notificationChunk; if (shouldChunkNotifications) { notificationChunk.SetCapacity(NOTIFY_VISITS_CHUNK_SIZE); } for (nsTArray::size_type i = 0; i < mPlaces.Length(); i++) { VisitData& place = mPlaces.ElementAt(i); // Fetching from the database can overwrite this information, so save it // apart. bool typed = place.typed; bool hidden = place.hidden; // We can avoid a database lookup if it's the same place as the last // visit we added. bool known = lastFetchedPlace && lastFetchedPlace->spec.Equals(place.spec); if (!known) { nsresult rv = mHistory->FetchPageInfo(place, &known); if (NS_FAILED(rv)) { if (!!mCallback && !mIgnoreErrors) { nsCOMPtr event = new NotifyPlaceInfoCallback(mCallback, place, true, rv); return NS_DispatchToMainThread(event); } return NS_OK; } lastFetchedPlace = &mPlaces.ElementAt(i); lastFetchedVisitCount = lastFetchedPlace->visitCount; } else { // Copy over the data from the already known place. place.placeId = lastFetchedPlace->placeId; place.guid = lastFetchedPlace->guid; place.lastVisitId = lastFetchedPlace->visitId; place.lastVisitTime = lastFetchedPlace->visitTime; if (!place.title.IsVoid()) { place.titleChanged = !lastFetchedPlace->title.Equals(place.title); } place.frecency = lastFetchedPlace->frecency; // Add one visit for the previous loop. place.visitCount = ++lastFetchedVisitCount; } // If any transition is typed, ensure the page is marked as typed. if (typed != lastFetchedPlace->typed) { place.typed = true; } // If any transition is visible, ensure the page is marked as visible. if (hidden != lastFetchedPlace->hidden) { place.hidden = false; } // If this is a new page, or the existing page was already visible, // there's no need to try to unhide it. if (!known || !lastFetchedPlace->hidden) { place.shouldUpdateHidden = false; } FetchReferrerInfo(place); nsresult rv = DoDatabaseInserts(known, place); if (!!mCallback) { // Check if consumers wanted to be notified about success/failure, // depending on whether this action succeeded or not. if ((NS_SUCCEEDED(rv) && !mIgnoreResults) || (NS_FAILED(rv) && !mIgnoreErrors)) { nsCOMPtr event = new NotifyPlaceInfoCallback(mCallback, place, true, rv); nsresult rv2 = NS_DispatchToMainThread(event); NS_ENSURE_SUCCESS(rv2, rv2); } } NS_ENSURE_SUCCESS(rv, rv); if (shouldChunkNotifications) { int32_t numRemaining = mPlaces.Length() - (i + 1); notificationChunk.AppendElement(place); if (notificationChunk.Length() == NOTIFY_VISITS_CHUNK_SIZE || numRemaining == 0) { // This will SwapElements on notificationChunk with an empty nsTArray nsCOMPtr event = new NotifyManyVisitsObservers(notificationChunk); rv = NS_DispatchToMainThread(event); NS_ENSURE_SUCCESS(rv, rv); int32_t nextCapacity = std::min(NOTIFY_VISITS_CHUNK_SIZE, numRemaining); notificationChunk.SetCapacity(nextCapacity); } } // If we get here, we must have been successful adding/updating this // visit/place, so update the count: mSuccessfulUpdatedCount++; } { // Trigger insertions for all the new origins of the places we inserted. nsAutoCString query("DELETE FROM moz_updateoriginsinsert_temp"); nsCOMPtr stmt = mHistory->GetStatement(query); NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); nsresult rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); } { // Trigger frecency updates for all those origins. nsAutoCString query("DELETE FROM moz_updateoriginsupdate_temp"); nsCOMPtr stmt = mHistory->GetStatement(query); NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); nsresult rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); } nsresult rv = transaction.Commit(); NS_ENSURE_SUCCESS(rv, rv); // If we don't need to chunk the notifications, just notify using the // original mPlaces array. if (!shouldChunkNotifications) { nsCOMPtr event = new NotifyManyVisitsObservers(mPlaces); rv = NS_DispatchToMainThread(event); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } private: InsertVisitedURIs( mozIStorageConnection* aConnection, nsTArray& aPlaces, const nsMainThreadPtrHandle& aCallback, bool aGroupNotifications, bool aIgnoreErrors, bool aIgnoreResults, uint32_t aInitialUpdatedCount) : Runnable("places::InsertVisitedURIs"), mDBConn(aConnection), mCallback(aCallback), mGroupNotifications(aGroupNotifications), mIgnoreErrors(aIgnoreErrors), mIgnoreResults(aIgnoreResults), mSuccessfulUpdatedCount(aInitialUpdatedCount), mHistory(History::GetService()) { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); mPlaces.SwapElements(aPlaces); #ifdef DEBUG for (nsTArray::size_type i = 0; i < mPlaces.Length(); i++) { nsCOMPtr uri; MOZ_ASSERT(NS_SUCCEEDED(NS_NewURI(getter_AddRefs(uri), mPlaces[i].spec))); MOZ_ASSERT(CanAddURI(uri), "Passed a VisitData with a URI we cannot add to history!"); } #endif } /** * Inserts or updates the entry in moz_places for this visit, adds the visit, * and updates the frecency of the place. * * @param aKnown * True if we already have an entry for this place in moz_places, false * otherwise. * @param aPlace * The place we are adding a visit for. */ nsresult DoDatabaseInserts(bool aKnown, VisitData& aPlace) { MOZ_ASSERT(!NS_IsMainThread(), "This should not be called on the main thread"); // If the page was in moz_places, we need to update the entry. nsresult rv; if (aKnown) { rv = mHistory->UpdatePlace(aPlace); NS_ENSURE_SUCCESS(rv, rv); } // Otherwise, the page was not in moz_places, so now we have to add it. else { rv = mHistory->InsertPlace(aPlace, !mGroupNotifications); NS_ENSURE_SUCCESS(rv, rv); aPlace.placeId = nsNavHistory::sLastInsertedPlaceId; } MOZ_ASSERT(aPlace.placeId > 0); rv = AddVisit(aPlace); NS_ENSURE_SUCCESS(rv, rv); // TODO (bug 623969) we shouldn't update this after each visit, but // rather only for each unique place to save disk I/O. // Don't update frecency if the page should not appear in autocomplete. if (aPlace.shouldUpdateFrecency) { rv = UpdateFrecency(aPlace); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } /** * Fetches information about a referrer for aPlace if it was a recent * visit or not. * * @param aPlace * The VisitData for the visit we will eventually add. * */ void FetchReferrerInfo(VisitData& aPlace) { if (aPlace.referrerSpec.IsEmpty()) { return; } VisitData referrer; referrer.spec = aPlace.referrerSpec; // If the referrer is the same as the page, we don't need to fetch it. if (aPlace.referrerSpec.Equals(aPlace.spec)) { referrer = aPlace; // The page last visit id is also the referrer visit id. aPlace.referrerVisitId = aPlace.lastVisitId; } else { bool exists = false; if (NS_SUCCEEDED(mHistory->FetchPageInfo(referrer, &exists)) && exists) { // Copy the referrer last visit id. aPlace.referrerVisitId = referrer.lastVisitId; } } // Check if the page has effectively been visited recently, otherwise // discard the referrer info. if (!aPlace.referrerVisitId || !referrer.lastVisitTime || aPlace.visitTime - referrer.lastVisitTime > RECENT_EVENT_THRESHOLD) { // We will not be using the referrer data. aPlace.referrerSpec.Truncate(); aPlace.referrerVisitId = 0; } } /** * Adds a visit for _place and updates it with the right visit id. * * @param _place * The VisitData for the place we need to know visit information about. */ nsresult AddVisit(VisitData& _place) { MOZ_ASSERT(_place.placeId > 0); nsresult rv; nsCOMPtr stmt; stmt = mHistory->GetStatement( "INSERT INTO moz_historyvisits " "(from_visit, place_id, visit_date, visit_type, session) " "VALUES (:from_visit, :page_id, :visit_date, :visit_type, 0) "); NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("page_id"), _place.placeId); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("from_visit"), _place.referrerVisitId); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("visit_date"), _place.visitTime); NS_ENSURE_SUCCESS(rv, rv); uint32_t transitionType = _place.transitionType; MOZ_ASSERT(transitionType >= nsINavHistoryService::TRANSITION_LINK && transitionType <= nsINavHistoryService::TRANSITION_RELOAD, "Invalid transition type!"); rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("visit_type"), transitionType); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); _place.visitId = nsNavHistory::sLastInsertedVisitId; MOZ_ASSERT(_place.visitId > 0); return NS_OK; } /** * Updates the frecency, and possibly the hidden-ness of aPlace. * * @param aPlace * The VisitData for the place we want to update. */ nsresult UpdateFrecency(const VisitData& aPlace) { MOZ_ASSERT(aPlace.shouldUpdateFrecency); MOZ_ASSERT(aPlace.placeId > 0); nsresult rv; { // First, set our frecency to the proper value. nsCOMPtr stmt; if (!mGroupNotifications) { // If we're notifying for individual frecency updates, use // the notify_frecency sql function which will call us back. stmt = mHistory->GetStatement( "UPDATE moz_places " "SET frecency = NOTIFY_FRECENCY(" "CALCULATE_FRECENCY(:page_id, :redirect), " "url, guid, hidden, last_visit_date" ") " "WHERE id = :page_id"); } else { // otherwise, just update the frecency without notifying. stmt = mHistory->GetStatement( "UPDATE moz_places " "SET frecency = CALCULATE_FRECENCY(:page_id, :redirect) " "WHERE id = :page_id"); } NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("page_id"), aPlace.placeId); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("redirect"), aPlace.useFrecencyRedirectBonus); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); } if (!aPlace.hidden && aPlace.shouldUpdateHidden) { // Mark the page as not hidden if the frecency is now nonzero. nsCOMPtr stmt; stmt = mHistory->GetStatement( "UPDATE moz_places " "SET hidden = 0 " "WHERE id = :page_id AND frecency <> 0"); NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("page_id"), aPlace.placeId); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } mozIStorageConnection* mDBConn; nsTArray mPlaces; nsMainThreadPtrHandle mCallback; bool mGroupNotifications; bool mIgnoreErrors; bool mIgnoreResults; uint32_t mSuccessfulUpdatedCount; /** * Strong reference to the History object because we do not want it to * disappear out from under us. */ RefPtr mHistory; }; /** * Sets the page title for a page in moz_places (if necessary). */ class SetPageTitle : public Runnable { public: /** * Sets a pages title in the database asynchronously. * * @param aConnection * The database connection to use for this operation. * @param aURI * The URI to set the page title on. * @param aTitle * The title to set for the page, if the page exists. */ static nsresult Start(mozIStorageConnection* aConnection, nsIURI* aURI, const nsAString& aTitle) { MOZ_ASSERT(NS_IsMainThread(), "This should be called on the main thread"); MOZ_ASSERT(aURI, "Must pass a non-null URI object!"); nsCString spec; nsresult rv = aURI->GetSpec(spec); NS_ENSURE_SUCCESS(rv, rv); RefPtr event = new SetPageTitle(spec, aTitle); // Get the target thread, and then start the work! nsCOMPtr target = do_GetInterface(aConnection); NS_ENSURE_TRUE(target, NS_ERROR_UNEXPECTED); rv = target->Dispatch(event, NS_DISPATCH_NORMAL); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } NS_IMETHOD Run() override { MOZ_ASSERT(!NS_IsMainThread(), "This should not be called on the main thread"); // First, see if the page exists in the database (we'll need its id later). bool exists; nsresult rv = mHistory->FetchPageInfo(mPlace, &exists); NS_ENSURE_SUCCESS(rv, rv); if (!exists || !mPlace.titleChanged) { // We have no record of this page, or we have no title change, so there // is no need to do any further work. return NS_OK; } MOZ_ASSERT(mPlace.placeId > 0, "We somehow have an invalid place id here!"); // Now we can update our database record. nsCOMPtr stmt = mHistory->GetStatement( "UPDATE moz_places " "SET title = :page_title " "WHERE id = :page_id "); NS_ENSURE_STATE(stmt); { mozStorageStatementScoper scoper(stmt); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("page_id"), mPlace.placeId); NS_ENSURE_SUCCESS(rv, rv); // Empty strings should clear the title, just like // nsNavHistory::SetPageTitle. if (mPlace.title.IsEmpty()) { rv = stmt->BindNullByName(NS_LITERAL_CSTRING("page_title")); } else { rv = stmt->BindStringByName(NS_LITERAL_CSTRING("page_title"), StringHead(mPlace.title, TITLE_LENGTH_MAX)); } NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); } nsCOMPtr event = new NotifyTitleObservers(mPlace.spec, mPlace.title, mPlace.guid); rv = NS_DispatchToMainThread(event); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } private: SetPageTitle(const nsCString& aSpec, const nsAString& aTitle) : Runnable("places::SetPageTitle"), mHistory(History::GetService()) { mPlace.spec = aSpec; mPlace.title = aTitle; } VisitData mPlace; /** * Strong reference to the History object because we do not want it to * disappear out from under us. */ RefPtr mHistory; }; /** * Stores an embed visit, and notifies observers. * * @param aPlace * The VisitData of the visit to store as an embed visit. * @param [optional] aCallback * The mozIVisitInfoCallback to notify, if provided. */ void StoreAndNotifyEmbedVisit(VisitData& aPlace, mozIVisitInfoCallback* aCallback = nullptr) { MOZ_ASSERT(aPlace.transitionType == nsINavHistoryService::TRANSITION_EMBED, "Must only pass TRANSITION_EMBED visits to this!"); MOZ_ASSERT(NS_IsMainThread(), "Must be called on the main thread!"); nsCOMPtr uri; MOZ_ALWAYS_SUCCEEDS(NS_NewURI(getter_AddRefs(uri), aPlace.spec)); nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); if (!navHistory || !uri) { return; } navHistory->registerEmbedVisit(uri, aPlace.visitTime); if (!!aCallback) { nsMainThreadPtrHandle callback( new nsMainThreadPtrHolder( "mozIVisitInfoCallback", aCallback)); bool ignoreResults = false; Unused << aCallback->GetIgnoreResults(&ignoreResults); if (!ignoreResults) { nsCOMPtr event = new NotifyPlaceInfoCallback(callback, aPlace, true, NS_OK); (void)NS_DispatchToMainThread(event); } } nsCOMPtr event = new NotifyManyVisitsObservers(aPlace); (void)NS_DispatchToMainThread(event); } } // namespace //////////////////////////////////////////////////////////////////////////////// //// History History* History::gService = nullptr; History::History() : mShuttingDown(false), mShutdownMutex("History::mShutdownMutex"), mObservers(VISIT_OBSERVERS_INITIAL_CACHE_LENGTH), mRecentlyVisitedURIs(RECENTLY_VISITED_URIS_SIZE) { NS_ASSERTION(!gService, "Ruh-roh! This service has already been created!"); if (XRE_IsParentProcess()) { nsCOMPtr dirsvc = services::GetDirectoryService(); bool haveProfile = false; MOZ_RELEASE_ASSERT( dirsvc && NS_SUCCEEDED( dirsvc->Has(NS_APP_USER_PROFILE_50_DIR, &haveProfile)) && haveProfile, "Can't construct history service if there is no profile."); } gService = this; nsCOMPtr os = services::GetObserverService(); NS_WARNING_ASSERTION(os, "Observer service was not found!"); if (os) { (void)os->AddObserver(this, TOPIC_PLACES_SHUTDOWN, false); } } History::~History() { UnregisterWeakMemoryReporter(this); MOZ_ASSERT(gService == this); gService = nullptr; } void History::InitMemoryReporter() { RegisterWeakMemoryReporter(this); } // Helper function which performs the checking required to fetch the document // object for the given link. May return null if the link does not have an owner // document. static Document* GetLinkDocument(Link* aLink) { // NOTE: Theoretically GetElement should never return nullptr, but it does // in GTests because they use a mock_Link which returns null from this // method. Element* element = aLink->GetElement(); return element ? element->OwnerDoc() : nullptr; } void History::NotifyVisitedParent(const nsTArray& aURIs) { MOZ_ASSERT(XRE_IsParentProcess()); nsTArray cplist; ContentParent::GetAll(cplist); if (!cplist.IsEmpty()) { for (uint32_t i = 0; i < cplist.Length(); ++i) { Unused << cplist[i]->SendNotifyVisited(aURIs); } } } NS_IMETHODIMP History::NotifyVisited(nsIURI* aURI) { MOZ_ASSERT(NS_IsMainThread()); NS_ENSURE_ARG(aURI); // NOTE: This can be run within the SystemGroup, and thus cannot directly // interact with webpages. nsAutoScriptBlocker scriptBlocker; // If we have no observers for this URI, we have nothing to notify about. KeyClass* key = mObservers.GetEntry(aURI); if (!key) { return NS_OK; } key->mVisited = true; // If we have a key, it should have at least one observer. MOZ_ASSERT(!key->array.IsEmpty()); // Dispatch an event to each document which has a Link observing this URL. // These will fire asynchronously in the correct DocGroup. { nsTArray seen; // Don't dispatch duplicate runnables. ObserverArray::BackwardIterator iter(key->array); while (iter.HasMore()) { Link* link = iter.GetNext(); Document* doc = GetLinkDocument(link); if (seen.Contains(doc)) { continue; } seen.AppendElement(doc); DispatchNotifyVisited(aURI, doc); } } return NS_OK; } void History::NotifyVisitedForDocument(nsIURI* aURI, Document* aDocument) { MOZ_ASSERT(NS_IsMainThread()); // Make sure that nothing invalidates our observer array while we're walking // over it. nsAutoScriptBlocker scriptBlocker; // If we have no observers for this URI, we have nothing to notify about. KeyClass* key = mObservers.GetEntry(aURI); if (!key) { return; } { // Update status of each Link node. We iterate over the array backwards so // we can remove the items as we encounter them. ObserverArray::BackwardIterator iter(key->array); while (iter.HasMore()) { Link* link = iter.GetNext(); Document* doc = GetLinkDocument(link); if (doc == aDocument) { link->SetLinkState(eLinkState_Visited); iter.Remove(); } // Verify that the observers hash doesn't mutate while looping through // the links associated with this URI. MOZ_ASSERT(key == mObservers.GetEntry(aURI), "The URIs hash mutated!"); } } // If we don't have any links left, we can remove the array. if (key->array.IsEmpty()) { mObservers.RemoveEntry(key); } } void History::DispatchNotifyVisited(nsIURI* aURI, Document* aDocument) { // Capture strong references to the arguments to capture in the closure. RefPtr doc = aDocument; nsCOMPtr uri = aURI; // Create and dispatch the runnable to call NotifyVisitedForDocument. nsCOMPtr runnable = NS_NewRunnableFunction("History::DispatchNotifyVisited", [uri, doc] { nsCOMPtr history = services::GetHistoryService(); static_cast(history.get()) ->NotifyVisitedForDocument(uri, doc); }); if (doc) { doc->Dispatch(TaskCategory::Other, runnable.forget()); } else { NS_DispatchToMainThread(runnable.forget()); } } class ConcurrentStatementsHolder final : public mozIStorageCompletionCallback { public: NS_DECL_ISUPPORTS explicit ConcurrentStatementsHolder(mozIStorageConnection* aDBConn) : mShutdownWasInvoked(false) { DebugOnly rv = aDBConn->AsyncClone(true, this); MOZ_ASSERT(NS_SUCCEEDED(rv)); } NS_IMETHOD Complete(nsresult aStatus, nsISupports* aConnection) override { if (NS_FAILED(aStatus)) { return NS_OK; } mReadOnlyDBConn = do_QueryInterface(aConnection); // It's possible Shutdown was invoked before we were handed back the // cloned connection handle. if (mShutdownWasInvoked) { Shutdown(); return NS_OK; } // Now we can create our cached statements. if (!mIsVisitedStatement) { (void)mReadOnlyDBConn->CreateAsyncStatement( NS_LITERAL_CSTRING("SELECT 1 FROM moz_places h " "WHERE url_hash = hash(?1) AND url = ?1 AND " "last_visit_date NOTNULL "), getter_AddRefs(mIsVisitedStatement)); MOZ_ASSERT(mIsVisitedStatement); nsresult result = mIsVisitedStatement ? NS_OK : NS_ERROR_NOT_AVAILABLE; for (int32_t i = 0; i < mIsVisitedCallbacks.Count(); ++i) { DebugOnly rv; rv = mIsVisitedCallbacks[i]->Complete(result, mIsVisitedStatement); MOZ_ASSERT(NS_SUCCEEDED(rv)); } mIsVisitedCallbacks.Clear(); } return NS_OK; } void GetIsVisitedStatement(mozIStorageCompletionCallback* aCallback) { if (mIsVisitedStatement) { DebugOnly rv; rv = aCallback->Complete(NS_OK, mIsVisitedStatement); MOZ_ASSERT(NS_SUCCEEDED(rv)); } else { DebugOnly added = mIsVisitedCallbacks.AppendObject(aCallback); MOZ_ASSERT(added); } } void Shutdown() { mShutdownWasInvoked = true; if (mReadOnlyDBConn) { mIsVisitedCallbacks.Clear(); DebugOnly rv; if (mIsVisitedStatement) { rv = mIsVisitedStatement->Finalize(); MOZ_ASSERT(NS_SUCCEEDED(rv)); } rv = mReadOnlyDBConn->AsyncClose(nullptr); MOZ_ASSERT(NS_SUCCEEDED(rv)); mReadOnlyDBConn = nullptr; } } private: ~ConcurrentStatementsHolder() {} nsCOMPtr mReadOnlyDBConn; nsCOMPtr mIsVisitedStatement; nsCOMArray mIsVisitedCallbacks; bool mShutdownWasInvoked; }; NS_IMPL_ISUPPORTS(ConcurrentStatementsHolder, mozIStorageCompletionCallback) nsresult History::GetIsVisitedStatement( mozIStorageCompletionCallback* aCallback) { MOZ_ASSERT(NS_IsMainThread()); if (mShuttingDown) return NS_ERROR_NOT_AVAILABLE; if (!mConcurrentStatementsHolder) { mozIStorageConnection* dbConn = GetDBConn(); NS_ENSURE_STATE(dbConn); mConcurrentStatementsHolder = new ConcurrentStatementsHolder(dbConn); } mConcurrentStatementsHolder->GetIsVisitedStatement(aCallback); return NS_OK; } nsresult History::InsertPlace(VisitData& aPlace, bool aShouldNotifyFrecencyChanged) { MOZ_ASSERT(aPlace.placeId == 0, "should not have a valid place id!"); MOZ_ASSERT(!aPlace.shouldUpdateHidden, "We should not need to update hidden"); MOZ_ASSERT(!NS_IsMainThread(), "must be called off of the main thread!"); nsCOMPtr stmt = GetStatement( "INSERT INTO moz_places " "(url, url_hash, title, rev_host, hidden, typed, frecency, guid) " "VALUES (:url, hash(:url), :title, :rev_host, :hidden, :typed, " ":frecency, :guid) "); NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); nsresult rv = stmt->BindStringByName(NS_LITERAL_CSTRING("rev_host"), aPlace.revHost); NS_ENSURE_SUCCESS(rv, rv); rv = URIBinder::Bind(stmt, NS_LITERAL_CSTRING("url"), aPlace.spec); NS_ENSURE_SUCCESS(rv, rv); nsString title = aPlace.title; // Empty strings should have no title, just like nsNavHistory::SetPageTitle. if (title.IsEmpty()) { rv = stmt->BindNullByName(NS_LITERAL_CSTRING("title")); } else { title.Assign(StringHead(aPlace.title, TITLE_LENGTH_MAX)); rv = stmt->BindStringByName(NS_LITERAL_CSTRING("title"), title); } NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("typed"), aPlace.typed); NS_ENSURE_SUCCESS(rv, rv); // When inserting a page for a first visit that should not appear in // autocomplete, for example an error page, use a zero frecency. int32_t frecency = aPlace.shouldUpdateFrecency ? aPlace.frecency : 0; rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("frecency"), frecency); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("hidden"), aPlace.hidden); NS_ENSURE_SUCCESS(rv, rv); if (aPlace.guid.IsVoid()) { rv = GenerateGUID(aPlace.guid); NS_ENSURE_SUCCESS(rv, rv); } rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aPlace.guid); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); // Post an onFrecencyChanged observer notification. if (aShouldNotifyFrecencyChanged) { const nsNavHistory* navHistory = nsNavHistory::GetConstHistoryService(); NS_ENSURE_STATE(navHistory); navHistory->DispatchFrecencyChangedNotification( aPlace.spec, frecency, aPlace.guid, aPlace.hidden, aPlace.visitTime); } return NS_OK; } nsresult History::UpdatePlace(const VisitData& aPlace) { MOZ_ASSERT(!NS_IsMainThread(), "must be called off of the main thread!"); MOZ_ASSERT(aPlace.placeId > 0, "must have a valid place id!"); MOZ_ASSERT(!aPlace.guid.IsVoid(), "must have a guid!"); nsCOMPtr stmt; bool titleIsVoid = aPlace.title.IsVoid(); if (titleIsVoid) { // Don't change the title. stmt = GetStatement( "UPDATE moz_places " "SET hidden = :hidden, " "typed = :typed, " "guid = :guid " "WHERE id = :page_id "); } else { stmt = GetStatement( "UPDATE moz_places " "SET title = :title, " "hidden = :hidden, " "typed = :typed, " "guid = :guid " "WHERE id = :page_id "); } NS_ENSURE_STATE(stmt); mozStorageStatementScoper scoper(stmt); nsresult rv; if (!titleIsVoid) { // An empty string clears the title. if (aPlace.title.IsEmpty()) { rv = stmt->BindNullByName(NS_LITERAL_CSTRING("title")); } else { rv = stmt->BindStringByName(NS_LITERAL_CSTRING("title"), StringHead(aPlace.title, TITLE_LENGTH_MAX)); } NS_ENSURE_SUCCESS(rv, rv); } rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("typed"), aPlace.typed); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("hidden"), aPlace.hidden); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aPlace.guid); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("page_id"), aPlace.placeId); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->Execute(); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } nsresult History::FetchPageInfo(VisitData& _place, bool* _exists) { MOZ_ASSERT(!_place.spec.IsEmpty() || !_place.guid.IsEmpty(), "must have either a non-empty spec or guid!"); MOZ_ASSERT(!NS_IsMainThread(), "must be called off of the main thread!"); nsresult rv; // URI takes precedence. nsCOMPtr stmt; bool selectByURI = !_place.spec.IsEmpty(); if (selectByURI) { stmt = GetStatement( "SELECT guid, id, title, hidden, typed, frecency, visit_count, " "last_visit_date, " "(SELECT id FROM moz_historyvisits " "WHERE place_id = h.id AND visit_date = h.last_visit_date) AS " "last_visit_id " "FROM moz_places h " "WHERE url_hash = hash(:page_url) AND url = :page_url "); NS_ENSURE_STATE(stmt); rv = URIBinder::Bind(stmt, NS_LITERAL_CSTRING("page_url"), _place.spec); NS_ENSURE_SUCCESS(rv, rv); } else { stmt = GetStatement( "SELECT url, id, title, hidden, typed, frecency, visit_count, " "last_visit_date, " "(SELECT id FROM moz_historyvisits " "WHERE place_id = h.id AND visit_date = h.last_visit_date) AS " "last_visit_id " "FROM moz_places h " "WHERE guid = :guid "); NS_ENSURE_STATE(stmt); rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), _place.guid); NS_ENSURE_SUCCESS(rv, rv); } mozStorageStatementScoper scoper(stmt); rv = stmt->ExecuteStep(_exists); NS_ENSURE_SUCCESS(rv, rv); if (!*_exists) { return NS_OK; } if (selectByURI) { if (_place.guid.IsEmpty()) { rv = stmt->GetUTF8String(0, _place.guid); NS_ENSURE_SUCCESS(rv, rv); } } else { nsAutoCString spec; rv = stmt->GetUTF8String(0, spec); NS_ENSURE_SUCCESS(rv, rv); _place.spec = spec; } rv = stmt->GetInt64(1, &_place.placeId); NS_ENSURE_SUCCESS(rv, rv); nsAutoString title; rv = stmt->GetString(2, title); NS_ENSURE_SUCCESS(rv, rv); // If the title we were given was void, that means we did not bother to set // it to anything. As a result, ignore the fact that we may have changed the // title (because we don't want to, that would be empty), and set the title // to what is currently stored in the datbase. if (_place.title.IsVoid()) { _place.title = title; } // Otherwise, just indicate if the title has changed. else { _place.titleChanged = !(_place.title.Equals(title)) && !(_place.title.IsEmpty() && title.IsVoid()); } int32_t hidden; rv = stmt->GetInt32(3, &hidden); NS_ENSURE_SUCCESS(rv, rv); _place.hidden = !!hidden; int32_t typed; rv = stmt->GetInt32(4, &typed); NS_ENSURE_SUCCESS(rv, rv); _place.typed = !!typed; rv = stmt->GetInt32(5, &_place.frecency); NS_ENSURE_SUCCESS(rv, rv); int32_t visitCount; rv = stmt->GetInt32(6, &visitCount); NS_ENSURE_SUCCESS(rv, rv); _place.visitCount = visitCount; rv = stmt->GetInt64(7, &_place.lastVisitTime); NS_ENSURE_SUCCESS(rv, rv); rv = stmt->GetInt64(8, &_place.lastVisitId); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } MOZ_DEFINE_MALLOC_SIZE_OF(HistoryMallocSizeOf) NS_IMETHODIMP History::CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData, bool aAnonymize) { MOZ_COLLECT_REPORT( "explicit/history-links-hashtable", KIND_HEAP, UNITS_BYTES, SizeOfIncludingThis(HistoryMallocSizeOf), "Memory used by the hashtable that records changes to the visited state " "of links."); return NS_OK; } size_t History::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOfThis) { return aMallocSizeOfThis(this) + mObservers.SizeOfExcludingThis(aMallocSizeOfThis); } /* static */ History* History::GetService() { if (gService) { return gService; } nsCOMPtr service(do_GetService(NS_IHISTORY_CONTRACTID)); if (service) { NS_ASSERTION(gService, "Our constructor was not run?!"); } return gService; } /* static */ already_AddRefed History::GetSingleton() { if (!gService) { RefPtr svc = new History(); MOZ_ASSERT(gService == svc.get()); svc->InitMemoryReporter(); return svc.forget(); } return do_AddRef(gService); } mozIStorageConnection* History::GetDBConn() { MOZ_ASSERT(NS_IsMainThread()); if (mShuttingDown) return nullptr; if (!mDB) { mDB = Database::GetDatabase(); NS_ENSURE_TRUE(mDB, nullptr); // This must happen on the main-thread, so when we try to use the connection // later it's initialized. mDB->EnsureConnection(); NS_ENSURE_TRUE(mDB, nullptr); } return mDB->MainConn(); } const mozIStorageConnection* History::GetConstDBConn() { MOZ_ASSERT(mDB || mShuttingDown); if (mShuttingDown || !mDB) { return nullptr; } return mDB->MainConn(); } void History::Shutdown() { MOZ_ASSERT(NS_IsMainThread()); // Prevent other threads from scheduling uses of the DB while we mark // ourselves as shutting down. MutexAutoLock lockedScope(mShutdownMutex); MOZ_ASSERT(!mShuttingDown && "Shutdown was called more than once!"); mShuttingDown = true; if (mConcurrentStatementsHolder) { mConcurrentStatementsHolder->Shutdown(); } } void History::AppendToRecentlyVisitedURIs(nsIURI* aURI, bool aHidden) { // Add a new entry, if necessary. RecentURIKey* entry = mRecentlyVisitedURIs.GetEntry(aURI); if (!entry) { entry = mRecentlyVisitedURIs.PutEntry(aURI); } if (entry) { entry->time = PR_Now(); entry->hidden = aHidden; } // Remove entries older than RECENTLY_VISITED_URIS_MAX_AGE. for (auto iter = mRecentlyVisitedURIs.Iter(); !iter.Done(); iter.Next()) { RecentURIKey* entry = iter.Get(); if ((PR_Now() - entry->time) > RECENTLY_VISITED_URIS_MAX_AGE) { iter.Remove(); } } } //////////////////////////////////////////////////////////////////////////////// //// IHistory NS_IMETHODIMP History::VisitURI(nsIWidget* aWidget, nsIURI* aURI, nsIURI* aLastVisitedURI, uint32_t aFlags) { MOZ_ASSERT(NS_IsMainThread()); NS_ENSURE_ARG(aURI); if (mShuttingDown) { return NS_OK; } if (XRE_IsContentProcess()) { URIParams uri; SerializeURI(aURI, uri); Maybe lastVisitedURI; SerializeURI(aLastVisitedURI, lastVisitedURI); NS_ENSURE_ARG(aWidget); BrowserChild* browserChild = aWidget->GetOwningBrowserChild(); NS_ENSURE_TRUE(browserChild, NS_ERROR_FAILURE); (void)browserChild->SendVisitURI(uri, lastVisitedURI, aFlags); return NS_OK; } nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); NS_ENSURE_TRUE(navHistory, NS_ERROR_OUT_OF_MEMORY); // Silently return if URI is something we shouldn't add to DB. bool canAdd; nsresult rv = navHistory->CanAddURI(aURI, &canAdd); NS_ENSURE_SUCCESS(rv, rv); if (!canAdd) { return NS_OK; } bool reload = false; if (aLastVisitedURI) { rv = aURI->Equals(aLastVisitedURI, &reload); NS_ENSURE_SUCCESS(rv, rv); } nsTArray placeArray(1); NS_ENSURE_TRUE(placeArray.AppendElement(VisitData(aURI, aLastVisitedURI)), NS_ERROR_OUT_OF_MEMORY); VisitData& place = placeArray.ElementAt(0); NS_ENSURE_FALSE(place.spec.IsEmpty(), NS_ERROR_INVALID_ARG); place.visitTime = PR_Now(); // Assigns a type to the edge in the visit linked list. Each type will be // considered differently when weighting the frecency of a location. uint32_t recentFlags = navHistory->GetRecentFlags(aURI); bool isFollowedLink = recentFlags & nsNavHistory::RECENT_ACTIVATED; // Embed visits should never be added to the database, and the same is valid // for redirects across frames. // For the above reasoning non-toplevel transitions are handled at first. // if the visit is toplevel or a non-toplevel followed link, then it can be // handled as usual and stored on disk. uint32_t transitionType = nsINavHistoryService::TRANSITION_LINK; if (!(aFlags & IHistory::TOP_LEVEL) && !isFollowedLink) { // A frame redirected to a new site without user interaction. transitionType = nsINavHistoryService::TRANSITION_EMBED; } else if (aFlags & IHistory::REDIRECT_TEMPORARY) { transitionType = nsINavHistoryService::TRANSITION_REDIRECT_TEMPORARY; } else if (aFlags & IHistory::REDIRECT_PERMANENT) { transitionType = nsINavHistoryService::TRANSITION_REDIRECT_PERMANENT; } else if (reload) { transitionType = nsINavHistoryService::TRANSITION_RELOAD; } else if ((recentFlags & nsNavHistory::RECENT_TYPED) && !(aFlags & IHistory::UNRECOVERABLE_ERROR)) { // Don't mark error pages as typed, even if they were actually typed by // the user. This is useful to limit their score in autocomplete. transitionType = nsINavHistoryService::TRANSITION_TYPED; } else if (recentFlags & nsNavHistory::RECENT_BOOKMARKED) { transitionType = nsINavHistoryService::TRANSITION_BOOKMARK; } else if (!(aFlags & IHistory::TOP_LEVEL) && isFollowedLink) { // User activated a link in a frame. transitionType = nsINavHistoryService::TRANSITION_FRAMED_LINK; } place.SetTransitionType(transitionType); bool isRedirect = aFlags & IHistory::REDIRECT_SOURCE; if (isRedirect) { place.useFrecencyRedirectBonus = (aFlags & IHistory::REDIRECT_SOURCE_PERMANENT) || transitionType != nsINavHistoryService::TRANSITION_TYPED; } place.hidden = GetHiddenState(isRedirect, place.transitionType); // Error pages should never be autocompleted. if (aFlags & IHistory::UNRECOVERABLE_ERROR) { place.shouldUpdateFrecency = false; } // Do not save a reloaded uri if we have visited the same URI recently. if (reload) { RecentURIKey* entry = mRecentlyVisitedURIs.GetEntry(aURI); // Check if the entry exists and is younger than // RECENTLY_VISITED_URIS_MAX_AGE. if (entry && (PR_Now() - entry->time) < RECENTLY_VISITED_URIS_MAX_AGE) { bool wasHidden = entry->hidden; // Regardless of whether we store the visit or not, we must update the // stored visit time. AppendToRecentlyVisitedURIs(aURI, place.hidden); // We always want to store an unhidden visit, if the previous visits were // hidden, because otherwise the page may not appear in the history UI. // This can happen for example at a page redirecting to itself. if (!wasHidden || place.hidden) { // We can skip this visit. return NS_OK; } } } // EMBED visits are session-persistent and should not go through the database. // They exist only to keep track of isVisited status during the session. if (place.transitionType == nsINavHistoryService::TRANSITION_EMBED) { StoreAndNotifyEmbedVisit(place); } else { mozIStorageConnection* dbConn = GetDBConn(); NS_ENSURE_STATE(dbConn); rv = InsertVisitedURIs::Start(dbConn, placeArray); NS_ENSURE_SUCCESS(rv, rv); } return NS_OK; } NS_IMETHODIMP History::RegisterVisitedCallback(nsIURI* aURI, Link* aLink) { MOZ_ASSERT(NS_IsMainThread()); NS_ASSERTION(aURI, "Must pass a non-null URI!"); if (XRE_IsContentProcess()) { MOZ_ASSERT(aLink, "Must pass a non-null Link!"); } // Obtain our array of observers for this URI. #ifdef DEBUG bool keyAlreadyExists = !!mObservers.GetEntry(aURI); #endif KeyClass* key = mObservers.PutEntry(aURI); NS_ENSURE_TRUE(key, NS_ERROR_OUT_OF_MEMORY); ObserverArray& observers = key->array; if (observers.IsEmpty()) { NS_ASSERTION(!keyAlreadyExists, "An empty key was kept around in our hashtable!"); // We are the first Link node to ask about this URI, or there are no pending // Links wanting to know about this URI. Therefore, we should query the // database now. nsresult rv = VisitedQuery::Start(aURI); // In IPC builds, we are passed a nullptr Link from // ContentParent::RecvStartVisitedQuery. Since we won't be adding a // nullptr entry to our list of observers, and the code after this point // assumes that aLink is non-nullptr, we will need to return now. if (NS_FAILED(rv) || !aLink) { // Remove our array from the hashtable so we don't keep it around. MOZ_ASSERT(key == mObservers.GetEntry(aURI), "The URIs hash mutated!"); // In some case calling RemoveEntry on the key obtained by PutEntry // crashes for currently unknown reasons. Our suspect is that something // between PutEntry and this call causes a nested loop that either removes // the entry or reallocs the hash. // TODO (Bug 1412647): we must figure the root cause for these issues and // remove this stop-gap crash fix. key = mObservers.GetEntry(aURI); if (key) { mObservers.RemoveEntry(key); } return rv; } } // In IPC builds, we are passed a nullptr Link from // ContentParent::RecvStartVisitedQuery. All of our code after this point // assumes aLink is non-nullptr, so we have to return now. else if (!aLink) { NS_ASSERTION(XRE_IsParentProcess(), "We should only ever get a null Link in the default process!"); return NS_OK; } // Sanity check that Links are not registered more than once for a given URI. // This will not catch a case where it is registered for two different URIs. NS_ASSERTION(!observers.Contains(aLink), "Already tracking this Link object!"); // Start tracking our Link. observers.AppendElement(aLink); // If this link has already been visited, we cannot synchronously mark // ourselves as visited, so instead we fire a runnable into our docgroup, // which will handle it for us. if (key->mVisited) { DispatchNotifyVisited(aURI, GetLinkDocument(aLink)); } return NS_OK; } NS_IMETHODIMP History::UnregisterVisitedCallback(nsIURI* aURI, Link* aLink) { MOZ_ASSERT(NS_IsMainThread()); // TODO: aURI is sometimes null - see bug 548685 NS_ASSERTION(aURI, "Must pass a non-null URI!"); NS_ASSERTION(aLink, "Must pass a non-null Link object!"); // Get the array, and remove the item from it. KeyClass* key = mObservers.GetEntry(aURI); if (!key) { NS_ERROR("Trying to unregister for a URI that wasn't registered!"); return NS_ERROR_UNEXPECTED; } ObserverArray& observers = key->array; if (!observers.RemoveElement(aLink)) { NS_ERROR("Trying to unregister a node that wasn't registered!"); return NS_ERROR_UNEXPECTED; } // If the array is now empty, we should remove it from the hashtable. if (observers.IsEmpty()) { MOZ_ASSERT(key == mObservers.GetEntry(aURI), "The URIs hash mutated!"); mObservers.RemoveEntry(key); } return NS_OK; } NS_IMETHODIMP History::SetURITitle(nsIURI* aURI, const nsAString& aTitle) { MOZ_ASSERT(NS_IsMainThread()); NS_ENSURE_ARG(aURI); if (mShuttingDown) { return NS_OK; } if (XRE_IsContentProcess()) { URIParams uri; SerializeURI(aURI, uri); mozilla::dom::ContentChild* cpc = mozilla::dom::ContentChild::GetSingleton(); NS_ASSERTION(cpc, "Content Protocol is NULL!"); (void)cpc->SendSetURITitle(uri, PromiseFlatString(aTitle)); return NS_OK; } nsNavHistory* navHistory = nsNavHistory::GetHistoryService(); // At first, it seems like nav history should always be available here, no // matter what. // // nsNavHistory fails to register as a service if there is no profile in // place (for instance, if user is choosing a profile). // // Maybe the correct thing to do is to not register this service if no // profile has been selected? // NS_ENSURE_TRUE(navHistory, NS_ERROR_FAILURE); bool canAdd; nsresult rv = navHistory->CanAddURI(aURI, &canAdd); NS_ENSURE_SUCCESS(rv, rv); if (!canAdd) { return NS_OK; } // Embed visits don't have a database entry, thus don't set a title on them. if (navHistory->hasEmbedVisit(aURI)) { return NS_OK; } mozIStorageConnection* dbConn = GetDBConn(); NS_ENSURE_STATE(dbConn); rv = SetPageTitle::Start(dbConn, aURI, aTitle); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } //////////////////////////////////////////////////////////////////////////////// //// mozIAsyncHistory NS_IMETHODIMP History::UpdatePlaces(JS::Handle aPlaceInfos, mozIVisitInfoCallback* aCallback, bool aGroupNotifications, JSContext* aCtx) { NS_ENSURE_TRUE(NS_IsMainThread(), NS_ERROR_UNEXPECTED); NS_ENSURE_TRUE(!aPlaceInfos.isPrimitive(), NS_ERROR_INVALID_ARG); uint32_t infosLength; JS::Rooted infos(aCtx); nsresult rv = GetJSArrayFromJSValue(aPlaceInfos, aCtx, &infos, &infosLength); NS_ENSURE_SUCCESS(rv, rv); uint32_t initialUpdatedCount = 0; nsTArray visitData; for (uint32_t i = 0; i < infosLength; i++) { JS::Rooted info(aCtx); nsresult rv = GetJSObjectFromArray(aCtx, infos, i, &info); NS_ENSURE_SUCCESS(rv, rv); nsCOMPtr uri = GetURIFromJSObject(aCtx, info, "uri"); nsCString guid; { nsString fatGUID; GetStringFromJSObject(aCtx, info, "guid", fatGUID); if (fatGUID.IsVoid()) { guid.SetIsVoid(true); } else { guid = NS_ConvertUTF16toUTF8(fatGUID); } } // Make sure that any uri we are given can be added to history, and if not, // skip it (CanAddURI will notify our callback for us). if (uri && !CanAddURI(uri, guid, aCallback)) { continue; } // We must have at least one of uri or guid. NS_ENSURE_ARG(uri || !guid.IsVoid()); // If we were given a guid, make sure it is valid. bool isValidGUID = IsValidGUID(guid); NS_ENSURE_ARG(guid.IsVoid() || isValidGUID); nsString title; GetStringFromJSObject(aCtx, info, "title", title); JS::Rooted visits(aCtx, nullptr); { JS::Rooted visitsVal(aCtx); bool rc = JS_GetProperty(aCtx, info, "visits", &visitsVal); NS_ENSURE_TRUE(rc, NS_ERROR_UNEXPECTED); if (!visitsVal.isPrimitive()) { visits = visitsVal.toObjectOrNull(); bool isArray; if (!JS_IsArrayObject(aCtx, visits, &isArray)) { return NS_ERROR_UNEXPECTED; } if (!isArray) { return NS_ERROR_INVALID_ARG; } } } NS_ENSURE_ARG(visits); uint32_t visitsLength = 0; if (visits) { (void)JS_GetArrayLength(aCtx, visits, &visitsLength); } NS_ENSURE_ARG(visitsLength > 0); // Check each visit, and build our array of VisitData objects. visitData.SetCapacity(visitData.Length() + visitsLength); for (uint32_t j = 0; j < visitsLength; j++) { JS::Rooted visit(aCtx); rv = GetJSObjectFromArray(aCtx, visits, j, &visit); NS_ENSURE_SUCCESS(rv, rv); VisitData& data = *visitData.AppendElement(VisitData(uri)); if (!title.IsEmpty()) { data.title = title; } else if (!title.IsVoid()) { // Setting data.title to an empty string wouldn't make it non-void. data.title.SetIsVoid(false); } data.guid = guid; // We must have a date and a transaction type! rv = GetIntFromJSObject(aCtx, visit, "visitDate", &data.visitTime); NS_ENSURE_SUCCESS(rv, rv); // visitDate should be in microseconds. It's easy to do the wrong thing // and pass milliseconds to updatePlaces, so we lazily check for that. // While it's not easily distinguishable, since both are integers, we can // check if the value is very far in the past, and assume it's probably // a mistake. if (data.visitTime < (PR_Now() / 1000)) { #ifdef DEBUG nsCOMPtr xpc = nsIXPConnect::XPConnect(); Unused << xpc->DebugDumpJSStack(false, false, false); MOZ_CRASH("invalid time format passed to updatePlaces"); #endif return NS_ERROR_INVALID_ARG; } uint32_t transitionType = 0; rv = GetIntFromJSObject(aCtx, visit, "transitionType", &transitionType); NS_ENSURE_SUCCESS(rv, rv); NS_ENSURE_ARG_RANGE(transitionType, nsINavHistoryService::TRANSITION_LINK, nsINavHistoryService::TRANSITION_RELOAD); data.SetTransitionType(transitionType); data.hidden = GetHiddenState(false, transitionType); // If the visit is an embed visit, we do not actually add it to the // database. if (transitionType == nsINavHistoryService::TRANSITION_EMBED) { StoreAndNotifyEmbedVisit(data, aCallback); visitData.RemoveLastElement(); initialUpdatedCount++; continue; } // The referrer is optional. nsCOMPtr referrer = GetURIFromJSObject(aCtx, visit, "referrerURI"); if (referrer) { (void)referrer->GetSpec(data.referrerSpec); } } } mozIStorageConnection* dbConn = GetDBConn(); NS_ENSURE_STATE(dbConn); nsMainThreadPtrHandle callback( new nsMainThreadPtrHolder("mozIVisitInfoCallback", aCallback)); // It is possible that all of the visits we were passed were dissallowed by // CanAddURI, which isn't an error. If we have no visits to add, however, // we should not call InsertVisitedURIs::Start. if (visitData.Length()) { nsresult rv = InsertVisitedURIs::Start( dbConn, visitData, callback, aGroupNotifications, initialUpdatedCount); NS_ENSURE_SUCCESS(rv, rv); } else if (aCallback) { // Be sure to notify that all of our operations are complete. This // is dispatched to the background thread first and redirected to the // main thread from there to make sure that all database notifications // and all embed or canAddURI notifications have finished. // Note: if we're inserting anything, it's the responsibility of // InsertVisitedURIs to call the completion callback, as here we won't // know how yet many items we will successfully insert/update. nsCOMPtr backgroundThread = do_GetInterface(dbConn); NS_ENSURE_TRUE(backgroundThread, NS_ERROR_UNEXPECTED); nsCOMPtr event = new NotifyCompletion(callback, initialUpdatedCount); return backgroundThread->Dispatch(event, NS_DISPATCH_NORMAL); } return NS_OK; } NS_IMETHODIMP History::IsURIVisited(nsIURI* aURI, mozIVisitedStatusCallback* aCallback) { NS_ENSURE_STATE(NS_IsMainThread()); NS_ENSURE_ARG(aURI); NS_ENSURE_ARG(aCallback); nsresult rv = VisitedQuery::Start(aURI, aCallback); NS_ENSURE_SUCCESS(rv, rv); return NS_OK; } //////////////////////////////////////////////////////////////////////////////// //// nsIObserver NS_IMETHODIMP History::Observe(nsISupports* aSubject, const char* aTopic, const char16_t* aData) { if (strcmp(aTopic, TOPIC_PLACES_SHUTDOWN) == 0) { Shutdown(); nsCOMPtr os = mozilla::services::GetObserverService(); if (os) { (void)os->RemoveObserver(this, TOPIC_PLACES_SHUTDOWN); } } return NS_OK; } //////////////////////////////////////////////////////////////////////////////// //// nsISupports NS_IMPL_ISUPPORTS(History, IHistory, mozIAsyncHistory, nsIObserver, nsIMemoryReporter) } // namespace places } // namespace mozilla