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gecko/dom/indexedDB/IDBFactory.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=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 "base/basictypes.h"
#include "IDBFactory.h"
#include "nsIFile.h"
#include "nsIPrincipal.h"
#include "nsIScriptContext.h"
#include "mozilla/storage.h"
#include "nsComponentManagerUtils.h"
#include "nsIScriptSecurityManager.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsDOMClassInfoID.h"
#include "nsHashKeys.h"
#include "nsPIDOMWindow.h"
#include "nsServiceManagerUtils.h"
#include "nsThreadUtils.h"
#include "nsXPCOMCID.h"
#include "AsyncConnectionHelper.h"
#include "CheckPermissionsHelper.h"
#include "DatabaseInfo.h"
#include "IDBDatabase.h"
#include "IDBEvents.h"
#include "IDBKeyRange.h"
#include "IndexedDatabaseManager.h"
#include "Key.h"
#include "mozilla/dom/PBrowserChild.h"
#include "mozilla/dom/TabChild.h"
using mozilla::dom::TabChild;
#include "ipc/IndexedDBChild.h"
USING_INDEXEDDB_NAMESPACE
namespace {
struct ObjectStoreInfoMap
{
ObjectStoreInfoMap()
: id(LL_MININT), info(nsnull) { }
PRInt64 id;
ObjectStoreInfo* info;
};
} // anonymous namespace
IDBFactory::IDBFactory()
: mOwningObject(nsnull), mActorChild(nsnull), mActorParent(nsnull)
{
}
IDBFactory::~IDBFactory()
{
NS_ASSERTION(!mActorParent, "Actor parent owns us, how can we be dying?!");
if (mActorChild) {
NS_ASSERTION(!IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
mActorChild->Send__delete__(mActorChild);
NS_ASSERTION(!mActorChild, "Should have cleared in Send__delete__!");
}
}
// static
nsresult
IDBFactory::Create(nsPIDOMWindow* aWindow,
const nsACString& aASCIIOrigin,
IDBFactory** aFactory)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aASCIIOrigin.IsEmpty() || nsContentUtils::IsCallerChrome(),
"Non-chrome may not supply their own origin!");
NS_ENSURE_TRUE(aWindow, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
if (aWindow->IsOuterWindow()) {
aWindow = aWindow->GetCurrentInnerWindow();
NS_ENSURE_TRUE(aWindow, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
// Make sure that the manager is up before we do anything here since lots of
// decisions depend on which process we're running in.
nsRefPtr<indexedDB::IndexedDatabaseManager> mgr =
indexedDB::IndexedDatabaseManager::GetOrCreate();
NS_ENSURE_TRUE(mgr, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsresult rv;
nsCString origin(aASCIIOrigin);
if (origin.IsEmpty()) {
rv = IndexedDatabaseManager::GetASCIIOriginFromWindow(aWindow, origin);
if (NS_FAILED(rv)) {
// Not allowed.
*aFactory = nsnull;
return NS_OK;
}
}
nsRefPtr<IDBFactory> factory = new IDBFactory();
factory->mASCIIOrigin = origin;
factory->mWindow = aWindow;
if (!IndexedDatabaseManager::IsMainProcess()) {
TabChild* tabChild = GetTabChildFrom(aWindow);
NS_ENSURE_TRUE(tabChild, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
IndexedDBChild* actor = new IndexedDBChild(origin);
bool allowed;
tabChild->SendPIndexedDBConstructor(actor, origin, &allowed);
if (!allowed) {
actor->Send__delete__(actor);
*aFactory = nsnull;
return NS_OK;
}
actor->SetFactory(factory);
}
factory.forget(aFactory);
return NS_OK;
}
// static
nsresult
IDBFactory::Create(JSContext* aCx,
JSObject* aOwningObject,
IDBFactory** aFactory)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aCx, "Null context!");
NS_ASSERTION(aOwningObject, "Null object!");
NS_ASSERTION(JS_GetGlobalForObject(aCx, aOwningObject) == aOwningObject,
"Not a global object!");
NS_ASSERTION(nsContentUtils::IsCallerChrome(), "Only for chrome!");
nsCString origin;
nsresult rv =
IndexedDatabaseManager::GetASCIIOriginFromWindow(nsnull, origin);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<IDBFactory> factory = new IDBFactory();
factory->mASCIIOrigin = origin;
factory->mOwningObject = aOwningObject;
factory.forget(aFactory);
return NS_OK;
}
// static
already_AddRefed<mozIStorageConnection>
IDBFactory::GetConnection(const nsAString& aDatabaseFilePath)
{
NS_ASSERTION(IndexedDatabaseManager::IsMainProcess(), "Wrong process!");
NS_ASSERTION(StringEndsWith(aDatabaseFilePath, NS_LITERAL_STRING(".sqlite")),
"Bad file path!");
nsCOMPtr<nsIFile> dbFile(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID));
NS_ENSURE_TRUE(dbFile, nsnull);
nsresult rv = dbFile->InitWithPath(aDatabaseFilePath);
NS_ENSURE_SUCCESS(rv, nsnull);
bool exists;
rv = dbFile->Exists(&exists);
NS_ENSURE_SUCCESS(rv, nsnull);
NS_ENSURE_TRUE(exists, nsnull);
nsCOMPtr<mozIStorageServiceQuotaManagement> ss =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_TRUE(ss, nsnull);
nsCOMPtr<mozIStorageConnection> connection;
rv = ss->OpenDatabaseWithVFS(dbFile, NS_LITERAL_CSTRING("quota"),
getter_AddRefs(connection));
NS_ENSURE_SUCCESS(rv, nsnull);
// Turn on foreign key constraints!
rv = connection->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"PRAGMA foreign_keys = ON;"
));
NS_ENSURE_SUCCESS(rv, nsnull);
return connection.forget();
}
inline
bool
IgnoreWhitespace(PRUnichar c)
{
return false;
}
// static
nsresult
IDBFactory::LoadDatabaseInformation(mozIStorageConnection* aConnection,
nsIAtom* aDatabaseId,
PRUint64* aVersion,
ObjectStoreInfoArray& aObjectStores)
{
NS_ASSERTION(!NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aConnection, "Null pointer!");
aObjectStores.Clear();
// Load object store names and ids.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"SELECT name, id, key_path, auto_increment "
"FROM object_store"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoTArray<ObjectStoreInfoMap, 20> infoMap;
bool hasResult;
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
nsRefPtr<ObjectStoreInfo>* element =
aObjectStores.AppendElement(new ObjectStoreInfo());
ObjectStoreInfo* info = element->get();
rv = stmt->GetString(0, info->name);
NS_ENSURE_SUCCESS(rv, rv);
info->id = stmt->AsInt64(1);
PRInt32 columnType;
nsresult rv = stmt->GetTypeOfIndex(2, &columnType);
NS_ENSURE_SUCCESS(rv, rv);
if (columnType == mozIStorageStatement::VALUE_TYPE_NULL) {
info->keyPath.SetIsVoid(true);
}
else {
NS_ASSERTION(columnType == mozIStorageStatement::VALUE_TYPE_TEXT,
"Should be a string");
nsString keyPath;
rv = stmt->GetString(2, keyPath);
NS_ENSURE_SUCCESS(rv, rv);
if (!keyPath.IsEmpty() && keyPath.First() == ',') {
// We use a comma in the beginning to indicate that it's an array of
// key paths. This is to be able to tell a string-keypath from an
// array-keypath which contains only one item.
nsCharSeparatedTokenizerTemplate<IgnoreWhitespace>
tokenizer(keyPath, ',');
tokenizer.nextToken();
while (tokenizer.hasMoreTokens()) {
info->keyPathArray.AppendElement(tokenizer.nextToken());
}
NS_ASSERTION(!info->keyPathArray.IsEmpty(),
"Should have at least one keypath");
}
else {
info->keyPath = keyPath;
}
}
info->nextAutoIncrementId = stmt->AsInt64(3);
info->comittedAutoIncrementId = info->nextAutoIncrementId;
info->autoIncrement = !!info->nextAutoIncrementId;
ObjectStoreInfoMap* mapEntry = infoMap.AppendElement();
NS_ENSURE_TRUE(mapEntry, NS_ERROR_OUT_OF_MEMORY);
mapEntry->id = info->id;
mapEntry->info = info;
}
NS_ENSURE_SUCCESS(rv, rv);
// Load index information
rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"SELECT object_store_id, id, name, key_path, unique_index, multientry "
"FROM object_store_index"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
while (NS_SUCCEEDED((rv = stmt->ExecuteStep(&hasResult))) && hasResult) {
PRInt64 objectStoreId = stmt->AsInt64(0);
ObjectStoreInfo* objectStoreInfo = nsnull;
for (PRUint32 index = 0; index < infoMap.Length(); index++) {
if (infoMap[index].id == objectStoreId) {
objectStoreInfo = infoMap[index].info;
break;
}
}
if (!objectStoreInfo) {
NS_ERROR("Index for nonexistant object store!");
return NS_ERROR_UNEXPECTED;
}
IndexInfo* indexInfo = objectStoreInfo->indexes.AppendElement();
NS_ENSURE_TRUE(indexInfo, NS_ERROR_OUT_OF_MEMORY);
indexInfo->id = stmt->AsInt64(1);
rv = stmt->GetString(2, indexInfo->name);
NS_ENSURE_SUCCESS(rv, rv);
nsString keyPath;
rv = stmt->GetString(3, keyPath);
NS_ENSURE_SUCCESS(rv, rv);
if (!keyPath.IsEmpty() && keyPath.First() == ',') {
// We use a comma in the beginning to indicate that it's an array of
// key paths. This is to be able to tell a string-keypath from an
// array-keypath which contains only one item.
nsCharSeparatedTokenizerTemplate<IgnoreWhitespace>
tokenizer(keyPath, ',');
tokenizer.nextToken();
while (tokenizer.hasMoreTokens()) {
indexInfo->keyPathArray.AppendElement(tokenizer.nextToken());
}
NS_ASSERTION(!indexInfo->keyPathArray.IsEmpty(),
"Should have at least one keypath");
}
else {
indexInfo->keyPath = keyPath;
}
indexInfo->unique = !!stmt->AsInt32(4);
indexInfo->multiEntry = !!stmt->AsInt32(5);
}
NS_ENSURE_SUCCESS(rv, rv);
// Load version information.
rv = aConnection->CreateStatement(NS_LITERAL_CSTRING(
"SELECT version "
"FROM database"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->ExecuteStep(&hasResult);
NS_ENSURE_SUCCESS(rv, rv);
if (!hasResult) {
NS_ERROR("Database has no version!");
return NS_ERROR_UNEXPECTED;
}
PRInt64 version = 0;
rv = stmt->GetInt64(0, &version);
*aVersion = NS_MAX<PRInt64>(version, 0);
return rv;
}
// static
nsresult
IDBFactory::SetDatabaseMetadata(DatabaseInfo* aDatabaseInfo,
PRUint64 aVersion,
ObjectStoreInfoArray& aObjectStores)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(aDatabaseInfo, "Null pointer!");
ObjectStoreInfoArray objectStores;
objectStores.SwapElements(aObjectStores);
#ifdef DEBUG
{
nsTArray<nsString> existingNames;
aDatabaseInfo->GetObjectStoreNames(existingNames);
NS_ASSERTION(existingNames.IsEmpty(), "Should be an empty DatabaseInfo");
}
#endif
aDatabaseInfo->version = aVersion;
for (PRUint32 index = 0; index < objectStores.Length(); index++) {
nsRefPtr<ObjectStoreInfo>& info = objectStores[index];
if (!aDatabaseInfo->PutObjectStore(info)) {
NS_WARNING("Out of memory!");
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_OK;
}
NS_IMPL_CYCLE_COLLECTION_CLASS(IDBFactory)
NS_IMPL_CYCLE_COLLECTING_ADDREF(IDBFactory)
NS_IMPL_CYCLE_COLLECTING_RELEASE(IDBFactory)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(IDBFactory)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_ENTRY(nsIIDBFactory)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(IDBFactory)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_NSCOMPTR(mWindow)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(IDBFactory)
if (tmp->mOwningObject) {
tmp->mOwningObject = nsnull;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_NSCOMPTR(mWindow)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(IDBFactory)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mOwningObject)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
DOMCI_DATA(IDBFactory, IDBFactory)
nsresult
IDBFactory::OpenCommon(const nsAString& aName,
PRInt64 aVersion,
bool aDeleting,
IDBOpenDBRequest** _retval)
{
NS_ASSERTION(NS_IsMainThread(), "Wrong thread!");
NS_ASSERTION(mWindow || mOwningObject, "Must have one of these!");
nsCOMPtr<nsPIDOMWindow> window;
nsCOMPtr<nsIScriptGlobalObject> sgo;
JSObject* scriptOwner = nsnull;
if (mWindow) {
window = mWindow;
}
else {
scriptOwner = mOwningObject;
}
nsRefPtr<IDBOpenDBRequest> request =
IDBOpenDBRequest::Create(window, scriptOwner);
NS_ENSURE_TRUE(request, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsresult rv;
if (IndexedDatabaseManager::IsMainProcess()) {
nsRefPtr<OpenDatabaseHelper> openHelper =
new OpenDatabaseHelper(request, aName, mASCIIOrigin, aVersion, aDeleting);
rv = openHelper->Init();
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
nsRefPtr<CheckPermissionsHelper> permissionHelper =
new CheckPermissionsHelper(openHelper, window, mASCIIOrigin, aDeleting);
IndexedDatabaseManager* mgr = IndexedDatabaseManager::Get();
NS_ASSERTION(mgr, "This should never be null!");
rv =
mgr->WaitForOpenAllowed(mASCIIOrigin, openHelper->Id(), permissionHelper);
NS_ENSURE_SUCCESS(rv, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
}
else if (aDeleting) {
nsCOMPtr<nsIAtom> databaseId =
IndexedDatabaseManager::GetDatabaseId(mASCIIOrigin, aName);
NS_ENSURE_TRUE(databaseId, NS_ERROR_DOM_INDEXEDDB_UNKNOWN_ERR);
IndexedDBDeleteDatabaseRequestChild* actor =
new IndexedDBDeleteDatabaseRequestChild(this, request, databaseId);
mActorChild->SendPIndexedDBDeleteDatabaseRequestConstructor(
actor,
nsString(aName));
}
else {
IndexedDBDatabaseChild* dbActor =
static_cast<IndexedDBDatabaseChild*>(
mActorChild->SendPIndexedDBDatabaseConstructor(nsString(aName),
aVersion));
dbActor->SetRequest(request);
}
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBFactory::Open(const nsAString& aName,
PRInt64 aVersion,
PRUint8 aArgc,
nsIIDBOpenDBRequest** _retval)
{
if (aVersion < 1 && aArgc) {
return NS_ERROR_TYPE_ERR;
}
nsRefPtr<IDBOpenDBRequest> request;
nsresult rv = OpenCommon(aName, aVersion, false, getter_AddRefs(request));
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBFactory::DeleteDatabase(const nsAString& aName,
nsIIDBOpenDBRequest** _retval)
{
nsRefPtr<IDBOpenDBRequest> request;
nsresult rv = OpenCommon(aName, 0, true, getter_AddRefs(request));
NS_ENSURE_SUCCESS(rv, rv);
request.forget(_retval);
return NS_OK;
}
NS_IMETHODIMP
IDBFactory::Cmp(const jsval& aFirst,
const jsval& aSecond,
JSContext* aCx,
PRInt16* _retval)
{
Key first, second;
nsresult rv = first.SetFromJSVal(aCx, aFirst);
if (NS_FAILED(rv)) {
return rv;
}
rv = second.SetFromJSVal(aCx, aSecond);
if (NS_FAILED(rv)) {
return rv;
}
if (first.IsUnset() || second.IsUnset()) {
return NS_ERROR_DOM_INDEXEDDB_DATA_ERR;
}
*_retval = Key::CompareKeys(first, second);
return NS_OK;
}
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