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gecko-dev/toolkit/components/places/Database.cpp

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/* 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/ArrayUtils.h"
#include "mozilla/Attributes.h"
#include "mozilla/DebugOnly.h"
#include "Database.h"
#include "nsINavBookmarksService.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIFile.h"
#include "nsIWritablePropertyBag2.h"
#include "nsNavHistory.h"
#include "nsPlacesTables.h"
#include "nsPlacesIndexes.h"
#include "nsPlacesTriggers.h"
#include "nsPlacesMacros.h"
#include "nsVariant.h"
#include "SQLFunctions.h"
#include "Helpers.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "prenv.h"
#include "prsystem.h"
#include "nsPrintfCString.h"
#include "mozilla/Preferences.h"
#include "mozilla/Services.h"
#include "mozilla/unused.h"
#include "prtime.h"
#include "nsXULAppAPI.h"
// Time between corrupt database backups.
#define RECENT_BACKUP_TIME_MICROSEC (int64_t)86400 * PR_USEC_PER_SEC // 24H
// Filename of the database.
#define DATABASE_FILENAME NS_LITERAL_STRING("places.sqlite")
// Filename used to backup corrupt databases.
#define DATABASE_CORRUPT_FILENAME NS_LITERAL_STRING("places.sqlite.corrupt")
// Set when the database file was found corrupt by a previous maintenance.
#define PREF_FORCE_DATABASE_REPLACEMENT "places.database.replaceOnStartup"
// Set to specify the size of the places database growth increments in kibibytes
#define PREF_GROWTH_INCREMENT_KIB "places.database.growthIncrementKiB"
// Set to disable the default robust storage and use volatile, in-memory
// storage without robust transaction flushing guarantees. This makes
// SQLite use much less I/O at the cost of losing data when things crash.
// The pref is only honored if an environment variable is set. The env
// variable is intentionally named something scary to help prevent someone
// from thinking it is a useful performance optimization they should enable.
#define PREF_DISABLE_DURABILITY "places.database.disableDurability"
#define ENV_ALLOW_CORRUPTION "ALLOW_PLACES_DATABASE_TO_LOSE_DATA_AND_BECOME_CORRUPT"
// The maximum url length we can store in history.
// We do not add to history URLs longer than this value.
#define PREF_HISTORY_MAXURLLEN "places.history.maxUrlLength"
// This number is mostly a guess based on various facts:
// * IE didn't support urls longer than 2083 chars
// * Sitemaps protocol used to support a maximum of 2048 chars
// * Various SEO guides suggest to not go over 2000 chars
// * Various apps/services are known to have issues over 2000 chars
// * RFC 2616 - HTTP/1.1 suggests being cautious about depending
// on URI lengths above 255 bytes
#define PREF_HISTORY_MAXURLLEN_DEFAULT 2000
// Maximum size for the WAL file. It should be small enough since in case of
// crashes we could lose all the transactions in the file. But a too small
// file could hurt performance.
#define DATABASE_MAX_WAL_SIZE_IN_KIBIBYTES 512
#define BYTES_PER_KIBIBYTE 1024
// How much time Sqlite can wait before returning a SQLITE_BUSY error.
#define DATABASE_BUSY_TIMEOUT_MS 100
// Old Sync GUID annotation.
#define SYNCGUID_ANNO NS_LITERAL_CSTRING("sync/guid")
// Places string bundle, contains internationalized bookmark root names.
#define PLACES_BUNDLE "chrome://places/locale/places.properties"
// Livemarks annotations.
#define LMANNO_FEEDURI "livemark/feedURI"
#define LMANNO_SITEURI "livemark/siteURI"
using namespace mozilla;
namespace mozilla {
namespace places {
namespace {
////////////////////////////////////////////////////////////////////////////////
//// Helpers
/**
* Checks whether exists a database backup created not longer than
* RECENT_BACKUP_TIME_MICROSEC ago.
*/
bool
hasRecentCorruptDB()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIFile> profDir;
NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(profDir));
NS_ENSURE_TRUE(profDir, false);
nsCOMPtr<nsISimpleEnumerator> entries;
profDir->GetDirectoryEntries(getter_AddRefs(entries));
NS_ENSURE_TRUE(entries, false);
bool hasMore;
while (NS_SUCCEEDED(entries->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> next;
entries->GetNext(getter_AddRefs(next));
NS_ENSURE_TRUE(next, false);
nsCOMPtr<nsIFile> currFile = do_QueryInterface(next);
NS_ENSURE_TRUE(currFile, false);
nsAutoString leafName;
if (NS_SUCCEEDED(currFile->GetLeafName(leafName)) &&
leafName.Length() >= DATABASE_CORRUPT_FILENAME.Length() &&
leafName.Find(".corrupt", DATABASE_FILENAME.Length()) != -1) {
PRTime lastMod = 0;
currFile->GetLastModifiedTime(&lastMod);
NS_ENSURE_TRUE(lastMod > 0, false);
return (PR_Now() - lastMod) > RECENT_BACKUP_TIME_MICROSEC;
}
}
return false;
}
/**
* Updates sqlite_stat1 table through ANALYZE.
* Since also nsPlacesExpiration.js executes ANALYZE, the analyzed tables
* must be the same in both components. So ensure they are in sync.
*
* @param aDBConn
* The database connection.
*/
nsresult
updateSQLiteStatistics(mozIStorageConnection* aDBConn)
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<mozIStorageAsyncStatement> analyzePlacesStmt;
aDBConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"ANALYZE moz_places"
), getter_AddRefs(analyzePlacesStmt));
NS_ENSURE_STATE(analyzePlacesStmt);
nsCOMPtr<mozIStorageAsyncStatement> analyzeBookmarksStmt;
aDBConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"ANALYZE moz_bookmarks"
), getter_AddRefs(analyzeBookmarksStmt));
NS_ENSURE_STATE(analyzeBookmarksStmt);
nsCOMPtr<mozIStorageAsyncStatement> analyzeVisitsStmt;
aDBConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"ANALYZE moz_historyvisits"
), getter_AddRefs(analyzeVisitsStmt));
NS_ENSURE_STATE(analyzeVisitsStmt);
nsCOMPtr<mozIStorageAsyncStatement> analyzeInputStmt;
aDBConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"ANALYZE moz_inputhistory"
), getter_AddRefs(analyzeInputStmt));
NS_ENSURE_STATE(analyzeInputStmt);
mozIStorageBaseStatement *stmts[] = {
analyzePlacesStmt,
analyzeBookmarksStmt,
analyzeVisitsStmt,
analyzeInputStmt
};
nsCOMPtr<mozIStoragePendingStatement> ps;
(void)aDBConn->ExecuteAsync(stmts, ArrayLength(stmts), nullptr,
getter_AddRefs(ps));
return NS_OK;
}
/**
* Sets the connection journal mode to one of the JOURNAL_* types.
*
* @param aDBConn
* The database connection.
* @param aJournalMode
* One of the JOURNAL_* types.
* @returns the current journal mode.
* @note this may return a different journal mode than the required one, since
* setting it may fail.
*/
enum JournalMode
SetJournalMode(nsCOMPtr<mozIStorageConnection>& aDBConn,
enum JournalMode aJournalMode)
{
MOZ_ASSERT(NS_IsMainThread());
nsAutoCString journalMode;
switch (aJournalMode) {
default:
MOZ_FALLTHROUGH_ASSERT("Trying to set an unknown journal mode.");
// Fall through to the default DELETE journal.
case JOURNAL_DELETE:
journalMode.AssignLiteral("delete");
break;
case JOURNAL_TRUNCATE:
journalMode.AssignLiteral("truncate");
break;
case JOURNAL_MEMORY:
journalMode.AssignLiteral("memory");
break;
case JOURNAL_WAL:
journalMode.AssignLiteral("wal");
break;
}
nsCOMPtr<mozIStorageStatement> statement;
nsAutoCString query(MOZ_STORAGE_UNIQUIFY_QUERY_STR
"PRAGMA journal_mode = ");
query.Append(journalMode);
aDBConn->CreateStatement(query, getter_AddRefs(statement));
NS_ENSURE_TRUE(statement, JOURNAL_DELETE);
bool hasResult = false;
if (NS_SUCCEEDED(statement->ExecuteStep(&hasResult)) && hasResult &&
NS_SUCCEEDED(statement->GetUTF8String(0, journalMode))) {
if (journalMode.EqualsLiteral("delete")) {
return JOURNAL_DELETE;
}
if (journalMode.EqualsLiteral("truncate")) {
return JOURNAL_TRUNCATE;
}
if (journalMode.EqualsLiteral("memory")) {
return JOURNAL_MEMORY;
}
if (journalMode.EqualsLiteral("wal")) {
return JOURNAL_WAL;
}
// This is an unknown journal.
MOZ_ASSERT(true);
}
return JOURNAL_DELETE;
}
nsresult
CreateRoot(nsCOMPtr<mozIStorageConnection>& aDBConn,
const nsCString& aRootName, const nsCString& aGuid,
const nsXPIDLString& titleString)
{
MOZ_ASSERT(NS_IsMainThread());
// The position of the new item in its folder.
static int32_t itemPosition = 0;
// A single creation timestamp for all roots so that the root folder's
// last modification time isn't earlier than its childrens' creation time.
static PRTime timestamp = 0;
if (!timestamp)
timestamp = RoundedPRNow();
// Create a new bookmark folder for the root.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = aDBConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT INTO moz_bookmarks "
"(type, position, title, dateAdded, lastModified, guid, parent) "
"VALUES (:item_type, :item_position, :item_title,"
":date_added, :last_modified, :guid,"
"IFNULL((SELECT id FROM moz_bookmarks WHERE parent = 0), 0))"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) return rv;
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("item_type"),
nsINavBookmarksService::TYPE_FOLDER);
if (NS_FAILED(rv)) return rv;
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("item_position"), itemPosition);
if (NS_FAILED(rv)) return rv;
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("item_title"),
NS_ConvertUTF16toUTF8(titleString));
if (NS_FAILED(rv)) return rv;
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("date_added"), timestamp);
if (NS_FAILED(rv)) return rv;
rv = stmt->BindInt64ByName(NS_LITERAL_CSTRING("last_modified"), timestamp);
if (NS_FAILED(rv)) return rv;
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"), aGuid);
if (NS_FAILED(rv)) return rv;
rv = stmt->Execute();
if (NS_FAILED(rv)) return rv;
// The 'places' root is a folder containing the other roots.
// The first bookmark in a folder has position 0.
if (!aRootName.EqualsLiteral("places"))
++itemPosition;
return NS_OK;
}
} // namespace
////////////////////////////////////////////////////////////////////////////////
//// Database
PLACES_FACTORY_SINGLETON_IMPLEMENTATION(Database, gDatabase)
NS_IMPL_ISUPPORTS(Database
, nsIObserver
, nsISupportsWeakReference
)
Database::Database()
: mMainThreadStatements(mMainConn)
, mMainThreadAsyncStatements(mMainConn)
, mAsyncThreadStatements(mMainConn)
, mDBPageSize(0)
, mDatabaseStatus(nsINavHistoryService::DATABASE_STATUS_OK)
, mClosed(false)
, mClientsShutdown(new ClientsShutdownBlocker())
, mConnectionShutdown(new ConnectionShutdownBlocker(this))
, mMaxUrlLength(0)
{
MOZ_ASSERT(!XRE_IsContentProcess(),
"Cannot instantiate Places in the content process");
// Attempting to create two instances of the service?
MOZ_ASSERT(!gDatabase);
gDatabase = this;
}
already_AddRefed<nsIAsyncShutdownClient>
Database::GetProfileChangeTeardownPhase()
{
nsCOMPtr<nsIAsyncShutdownService> asyncShutdownSvc = services::GetAsyncShutdown();
MOZ_ASSERT(asyncShutdownSvc);
if (NS_WARN_IF(!asyncShutdownSvc)) {
return nullptr;
}
// Consumers of Places should shutdown before us, at profile-change-teardown.
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase;
DebugOnly<nsresult> rv = asyncShutdownSvc->
GetProfileChangeTeardown(getter_AddRefs(shutdownPhase));
MOZ_ASSERT(NS_SUCCEEDED(rv));
return shutdownPhase.forget();
}
already_AddRefed<nsIAsyncShutdownClient>
Database::GetProfileBeforeChangePhase()
{
nsCOMPtr<nsIAsyncShutdownService> asyncShutdownSvc = services::GetAsyncShutdown();
MOZ_ASSERT(asyncShutdownSvc);
if (NS_WARN_IF(!asyncShutdownSvc)) {
return nullptr;
}
// Consumers of Places should shutdown before us, at profile-change-teardown.
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase;
DebugOnly<nsresult> rv = asyncShutdownSvc->
GetProfileBeforeChange(getter_AddRefs(shutdownPhase));
MOZ_ASSERT(NS_SUCCEEDED(rv));
return shutdownPhase.forget();
}
Database::~Database()
{
}
bool
Database::IsShutdownStarted() const
{
if (!mConnectionShutdown) {
// We have already broken the cycle between `this` and `mConnectionShutdown`.
return true;
}
return mConnectionShutdown->IsStarted();
}
already_AddRefed<mozIStorageAsyncStatement>
Database::GetAsyncStatement(const nsACString& aQuery) const
{
if (IsShutdownStarted()) {
return nullptr;
}
MOZ_ASSERT(NS_IsMainThread());
return mMainThreadAsyncStatements.GetCachedStatement(aQuery);
}
already_AddRefed<mozIStorageStatement>
Database::GetStatement(const nsACString& aQuery) const
{
if (IsShutdownStarted()) {
return nullptr;
}
if (NS_IsMainThread()) {
return mMainThreadStatements.GetCachedStatement(aQuery);
}
return mAsyncThreadStatements.GetCachedStatement(aQuery);
}
already_AddRefed<nsIAsyncShutdownClient>
Database::GetClientsShutdown()
{
MOZ_ASSERT(mClientsShutdown);
return mClientsShutdown->GetClient();
}
// static
already_AddRefed<Database>
Database::GetDatabase()
{
if (PlacesShutdownBlocker::IsStarted()) {
return nullptr;
}
return GetSingleton();
}
nsresult
Database::Init()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<mozIStorageService> storage =
do_GetService(MOZ_STORAGE_SERVICE_CONTRACTID);
NS_ENSURE_STATE(storage);
// Init the database file and connect to it.
bool databaseCreated = false;
nsresult rv = InitDatabaseFile(storage, &databaseCreated);
if (NS_SUCCEEDED(rv) && databaseCreated) {
mDatabaseStatus = nsINavHistoryService::DATABASE_STATUS_CREATE;
}
else if (rv == NS_ERROR_FILE_CORRUPTED) {
// The database is corrupt, backup and replace it with a new one.
mDatabaseStatus = nsINavHistoryService::DATABASE_STATUS_CORRUPT;
rv = BackupAndReplaceDatabaseFile(storage);
// Fallback to catch-all handler, that notifies a database locked failure.
}
// If the database connection still cannot be opened, it may just be locked
// by third parties. Send out a notification and interrupt initialization.
if (NS_FAILED(rv)) {
RefPtr<PlacesEvent> lockedEvent = new PlacesEvent(TOPIC_DATABASE_LOCKED);
(void)NS_DispatchToMainThread(lockedEvent);
return rv;
}
// Initialize the database schema. In case of failure the existing schema is
// is corrupt or incoherent, thus the database should be replaced.
bool databaseMigrated = false;
rv = InitSchema(&databaseMigrated);
if (NS_FAILED(rv)) {
mDatabaseStatus = nsINavHistoryService::DATABASE_STATUS_CORRUPT;
rv = BackupAndReplaceDatabaseFile(storage);
NS_ENSURE_SUCCESS(rv, rv);
// Try to initialize the schema again on the new database.
rv = InitSchema(&databaseMigrated);
NS_ENSURE_SUCCESS(rv, rv);
}
if (databaseMigrated) {
mDatabaseStatus = nsINavHistoryService::DATABASE_STATUS_UPGRADED;
}
if (mDatabaseStatus != nsINavHistoryService::DATABASE_STATUS_OK) {
rv = updateSQLiteStatistics(MainConn());
NS_ENSURE_SUCCESS(rv, rv);
}
// Initialize here all the items that are not part of the on-disk database,
// like views, temp triggers or temp tables. The database should not be
// considered corrupt if any of the following fails.
rv = InitTempEntities();
NS_ENSURE_SUCCESS(rv, rv);
// Notify we have finished database initialization.
// Enqueue the notification, so if we init another service that requires
// nsNavHistoryService we don't recursive try to get it.
RefPtr<PlacesEvent> completeEvent =
new PlacesEvent(TOPIC_PLACES_INIT_COMPLETE);
rv = NS_DispatchToMainThread(completeEvent);
NS_ENSURE_SUCCESS(rv, rv);
// At this point we know the Database object points to a valid connection
// and we need to setup async shutdown.
{
// First of all Places clients should block profile-change-teardown.
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase = GetProfileChangeTeardownPhase();
MOZ_ASSERT(shutdownPhase);
if (shutdownPhase) {
DebugOnly<nsresult> rv = shutdownPhase->AddBlocker(
static_cast<nsIAsyncShutdownBlocker*>(mClientsShutdown.get()),
NS_LITERAL_STRING(__FILE__),
__LINE__,
NS_LITERAL_STRING(""));
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
}
{
// Then connection closing should block profile-before-change.
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase = GetProfileBeforeChangePhase();
MOZ_ASSERT(shutdownPhase);
if (shutdownPhase) {
DebugOnly<nsresult> rv = shutdownPhase->AddBlocker(
static_cast<nsIAsyncShutdownBlocker*>(mConnectionShutdown.get()),
NS_LITERAL_STRING(__FILE__),
__LINE__,
NS_LITERAL_STRING(""));
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
}
// Finally observe profile shutdown notifications.
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
(void)os->AddObserver(this, TOPIC_PROFILE_CHANGE_TEARDOWN, true);
}
return NS_OK;
}
nsresult
Database::InitDatabaseFile(nsCOMPtr<mozIStorageService>& aStorage,
bool* aNewDatabaseCreated)
{
MOZ_ASSERT(NS_IsMainThread());
*aNewDatabaseCreated = false;
nsCOMPtr<nsIFile> databaseFile;
nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(databaseFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = databaseFile->Append(DATABASE_FILENAME);
NS_ENSURE_SUCCESS(rv, rv);
bool databaseFileExists = false;
rv = databaseFile->Exists(&databaseFileExists);
NS_ENSURE_SUCCESS(rv, rv);
if (databaseFileExists &&
Preferences::GetBool(PREF_FORCE_DATABASE_REPLACEMENT, false)) {
// If this pref is set, Maintenance required a database replacement, due to
// integrity corruption.
// Be sure to clear the pref to avoid handling it more than once.
(void)Preferences::ClearUser(PREF_FORCE_DATABASE_REPLACEMENT);
return NS_ERROR_FILE_CORRUPTED;
}
// Open the database file. If it does not exist a new one will be created.
// Use an unshared connection, it will consume more memory but avoid shared
// cache contentions across threads.
rv = aStorage->OpenUnsharedDatabase(databaseFile, getter_AddRefs(mMainConn));
NS_ENSURE_SUCCESS(rv, rv);
*aNewDatabaseCreated = !databaseFileExists;
return NS_OK;
}
nsresult
Database::BackupAndReplaceDatabaseFile(nsCOMPtr<mozIStorageService>& aStorage)
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIFile> profDir;
nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
getter_AddRefs(profDir));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIFile> databaseFile;
rv = profDir->Clone(getter_AddRefs(databaseFile));
NS_ENSURE_SUCCESS(rv, rv);
rv = databaseFile->Append(DATABASE_FILENAME);
NS_ENSURE_SUCCESS(rv, rv);
// If we have
// already failed in the last 24 hours avoid to create another corrupt file,
// since doing so, in some situation, could cause us to create a new corrupt
// file at every try to access any Places service. That is bad because it
// would quickly fill the user's disk space without any notice.
if (!hasRecentCorruptDB()) {
nsCOMPtr<nsIFile> backup;
(void)aStorage->BackupDatabaseFile(databaseFile, DATABASE_CORRUPT_FILENAME,
profDir, getter_AddRefs(backup));
}
// Close database connection if open.
if (mMainConn) {
// If there's any not finalized statement or this fails for any reason
// we won't be able to remove the database.
rv = mMainConn->Close();
NS_ENSURE_SUCCESS(rv, rv);
}
// Remove the broken database.
rv = databaseFile->Remove(false);
NS_ENSURE_SUCCESS(rv, rv);
// Create a new database file.
// Use an unshared connection, it will consume more memory but avoid shared
// cache contentions across threads.
rv = aStorage->OpenUnsharedDatabase(databaseFile, getter_AddRefs(mMainConn));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::InitSchema(bool* aDatabaseMigrated)
{
MOZ_ASSERT(NS_IsMainThread());
*aDatabaseMigrated = false;
// WARNING: any statement executed before setting the journal mode must be
// finalized, since SQLite doesn't allow changing the journal mode if there
// is any outstanding statement.
{
// Get the page size. This may be different than the default if the
// database file already existed with a different page size.
nsCOMPtr<mozIStorageStatement> statement;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
MOZ_STORAGE_UNIQUIFY_QUERY_STR "PRAGMA page_size"
), getter_AddRefs(statement));
NS_ENSURE_SUCCESS(rv, rv);
bool hasResult = false;
rv = statement->ExecuteStep(&hasResult);
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && hasResult, NS_ERROR_FAILURE);
rv = statement->GetInt32(0, &mDBPageSize);
NS_ENSURE_TRUE(NS_SUCCEEDED(rv) && mDBPageSize > 0, NS_ERROR_UNEXPECTED);
}
// Ensure that temp tables are held in memory, not on disk.
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
MOZ_STORAGE_UNIQUIFY_QUERY_STR "PRAGMA temp_store = MEMORY"));
NS_ENSURE_SUCCESS(rv, rv);
if (PR_GetEnv(ENV_ALLOW_CORRUPTION) && Preferences::GetBool(PREF_DISABLE_DURABILITY, false)) {
// Volatile storage was requested. Use the in-memory journal (no
// filesystem I/O) and don't sync the filesystem after writing.
SetJournalMode(mMainConn, JOURNAL_MEMORY);
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"PRAGMA synchronous = OFF"));
NS_ENSURE_SUCCESS(rv, rv);
}
else {
// Be sure to set journal mode after page_size. WAL would prevent the change
// otherwise.
if (JOURNAL_WAL == SetJournalMode(mMainConn, JOURNAL_WAL)) {
// Set the WAL journal size limit. We want it to be small, since in
// synchronous = NORMAL mode a crash could cause loss of all the
// transactions in the journal. For added safety we will also force
// checkpointing at strategic moments.
int32_t checkpointPages =
static_cast<int32_t>(DATABASE_MAX_WAL_SIZE_IN_KIBIBYTES * 1024 / mDBPageSize);
nsAutoCString checkpointPragma("PRAGMA wal_autocheckpoint = ");
checkpointPragma.AppendInt(checkpointPages);
rv = mMainConn->ExecuteSimpleSQL(checkpointPragma);
NS_ENSURE_SUCCESS(rv, rv);
}
else {
// Ignore errors, if we fail here the database could be considered corrupt
// and we won't be able to go on, even if it's just matter of a bogus file
// system. The default mode (DELETE) will be fine in such a case.
(void)SetJournalMode(mMainConn, JOURNAL_TRUNCATE);
// Set synchronous to FULL to ensure maximum data integrity, even in
// case of crashes or unclean shutdowns.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"PRAGMA synchronous = FULL"));
NS_ENSURE_SUCCESS(rv, rv);
}
}
// The journal is usually free to grow for performance reasons, but it never
// shrinks back. Since the space taken may be problematic, especially on
// mobile devices, limit its size.
// Since exceeding the limit will cause a truncate, allow a slightly
// larger limit than DATABASE_MAX_WAL_SIZE_IN_KIBIBYTES to reduce the number
// of times it is needed.
nsAutoCString journalSizePragma("PRAGMA journal_size_limit = ");
journalSizePragma.AppendInt(DATABASE_MAX_WAL_SIZE_IN_KIBIBYTES * 3);
(void)mMainConn->ExecuteSimpleSQL(journalSizePragma);
// Grow places in |growthIncrementKiB| increments to limit fragmentation on disk.
// By default, it's 10 MB.
int32_t growthIncrementKiB =
Preferences::GetInt(PREF_GROWTH_INCREMENT_KIB, 10 * BYTES_PER_KIBIBYTE);
if (growthIncrementKiB > 0) {
(void)mMainConn->SetGrowthIncrement(growthIncrementKiB * BYTES_PER_KIBIBYTE, EmptyCString());
}
nsAutoCString busyTimeoutPragma("PRAGMA busy_timeout = ");
busyTimeoutPragma.AppendInt(DATABASE_BUSY_TIMEOUT_MS);
(void)mMainConn->ExecuteSimpleSQL(busyTimeoutPragma);
// We use our functions during migration, so initialize them now.
rv = InitFunctions();
NS_ENSURE_SUCCESS(rv, rv);
// Get the database schema version.
int32_t currentSchemaVersion;
rv = mMainConn->GetSchemaVersion(&currentSchemaVersion);
NS_ENSURE_SUCCESS(rv, rv);
bool databaseInitialized = currentSchemaVersion > 0;
if (databaseInitialized && currentSchemaVersion == DATABASE_SCHEMA_VERSION) {
// The database is up to date and ready to go.
return NS_OK;
}
// We are going to update the database, so everything from now on should be in
// a transaction for performances.
mozStorageTransaction transaction(mMainConn, false);
if (databaseInitialized) {
// Migration How-to:
//
// 1. increment PLACES_SCHEMA_VERSION.
// 2. implement a method that performs upgrade to your version from the
// previous one.
//
// NOTE: The downgrade process is pretty much complicated by the fact old
// versions cannot know what a new version is going to implement.
// The only thing we will do for downgrades is setting back the schema
// version, so that next upgrades will run again the migration step.
if (currentSchemaVersion < DATABASE_SCHEMA_VERSION) {
*aDatabaseMigrated = true;
if (currentSchemaVersion < 11) {
// These are versions older than Firefox 4 that are not supported
// anymore. In this case it's safer to just replace the database.
return NS_ERROR_FILE_CORRUPTED;
}
// Firefox 4 uses schema version 11.
// Firefox 8 uses schema version 12.
if (currentSchemaVersion < 13) {
rv = MigrateV13Up();
NS_ENSURE_SUCCESS(rv, rv);
}
if (currentSchemaVersion < 15) {
rv = MigrateV15Up();
NS_ENSURE_SUCCESS(rv, rv);
}
if (currentSchemaVersion < 17) {
rv = MigrateV17Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 12 uses schema version 17.
if (currentSchemaVersion < 18) {
rv = MigrateV18Up();
NS_ENSURE_SUCCESS(rv, rv);
}
if (currentSchemaVersion < 19) {
rv = MigrateV19Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 13 uses schema version 19.
if (currentSchemaVersion < 20) {
rv = MigrateV20Up();
NS_ENSURE_SUCCESS(rv, rv);
}
if (currentSchemaVersion < 21) {
rv = MigrateV21Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 14 uses schema version 21.
if (currentSchemaVersion < 22) {
rv = MigrateV22Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 22 uses schema version 22.
if (currentSchemaVersion < 23) {
rv = MigrateV23Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 24 uses schema version 23.
if (currentSchemaVersion < 24) {
rv = MigrateV24Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 34 uses schema version 24.
if (currentSchemaVersion < 25) {
rv = MigrateV25Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 36 uses schema version 25.
if (currentSchemaVersion < 26) {
rv = MigrateV26Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 37 uses schema version 26.
if (currentSchemaVersion < 27) {
rv = MigrateV27Up();
NS_ENSURE_SUCCESS(rv, rv);
}
if (currentSchemaVersion < 28) {
rv = MigrateV28Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 39 uses schema version 28.
if (currentSchemaVersion < 30) {
rv = MigrateV30Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 41 uses schema version 30.
if (currentSchemaVersion < 31) {
rv = MigrateV31Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 48 uses schema version 31.
if (currentSchemaVersion < 32) {
rv = MigrateV32Up();
NS_ENSURE_SUCCESS(rv, rv);
}
// Firefox 49 uses schema version 32.
// Schema Upgrades must add migration code here.
rv = UpdateBookmarkRootTitles();
// We don't want a broken localization to cause us to think
// the database is corrupt and needs to be replaced.
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
}
else {
// This is a new database, so we have to create all the tables and indices.
// moz_places.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_PLACES);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_URL);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_FAVICON);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_REVHOST);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_VISITCOUNT);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_FRECENCY);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_LASTVISITDATE);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_PLACES_GUID);
NS_ENSURE_SUCCESS(rv, rv);
// moz_historyvisits.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_HISTORYVISITS);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_HISTORYVISITS_PLACEDATE);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_HISTORYVISITS_FROMVISIT);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_HISTORYVISITS_VISITDATE);
NS_ENSURE_SUCCESS(rv, rv);
// moz_inputhistory.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_INPUTHISTORY);
NS_ENSURE_SUCCESS(rv, rv);
// moz_hosts.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_HOSTS);
NS_ENSURE_SUCCESS(rv, rv);
// moz_bookmarks.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_BOOKMARKS);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_BOOKMARKS_PLACETYPE);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_BOOKMARKS_PARENTPOSITION);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_BOOKMARKS_PLACELASTMODIFIED);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_BOOKMARKS_GUID);
NS_ENSURE_SUCCESS(rv, rv);
// moz_keywords.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_KEYWORDS);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_KEYWORDS_PLACEPOSTDATA);
NS_ENSURE_SUCCESS(rv, rv);
// moz_favicons.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_FAVICONS);
NS_ENSURE_SUCCESS(rv, rv);
// moz_anno_attributes.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_ANNO_ATTRIBUTES);
NS_ENSURE_SUCCESS(rv, rv);
// moz_annos.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_ANNOS);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_ANNOS_PLACEATTRIBUTE);
NS_ENSURE_SUCCESS(rv, rv);
// moz_items_annos.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_ITEMS_ANNOS);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_ITEMSANNOS_PLACEATTRIBUTE);
NS_ENSURE_SUCCESS(rv, rv);
// Initialize the bookmark roots in the new DB.
rv = CreateBookmarkRoots();
NS_ENSURE_SUCCESS(rv, rv);
}
// Set the schema version to the current one.
rv = mMainConn->SetSchemaVersion(DATABASE_SCHEMA_VERSION);
NS_ENSURE_SUCCESS(rv, rv);
rv = transaction.Commit();
NS_ENSURE_SUCCESS(rv, rv);
ForceWALCheckpoint();
// ANY FAILURE IN THIS METHOD WILL CAUSE US TO MARK THE DATABASE AS CORRUPT
// AND TRY TO REPLACE IT.
// DO NOT PUT HERE ANYTHING THAT IS NOT RELATED TO INITIALIZATION OR MODIFYING
// THE DISK DATABASE.
return NS_OK;
}
nsresult
Database::CreateBookmarkRoots()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIStringBundleService> bundleService =
services::GetStringBundleService();
NS_ENSURE_STATE(bundleService);
nsCOMPtr<nsIStringBundle> bundle;
nsresult rv = bundleService->CreateBundle(PLACES_BUNDLE, getter_AddRefs(bundle));
if (NS_FAILED(rv)) return rv;
nsXPIDLString rootTitle;
// The first root's title is an empty string.
rv = CreateRoot(mMainConn, NS_LITERAL_CSTRING("places"),
NS_LITERAL_CSTRING("root________"), rootTitle);
if (NS_FAILED(rv)) return rv;
// Fetch the internationalized folder name from the string bundle.
rv = bundle->GetStringFromName(MOZ_UTF16("BookmarksMenuFolderTitle"),
getter_Copies(rootTitle));
if (NS_FAILED(rv)) return rv;
rv = CreateRoot(mMainConn, NS_LITERAL_CSTRING("menu"),
NS_LITERAL_CSTRING("menu________"), rootTitle);
if (NS_FAILED(rv)) return rv;
rv = bundle->GetStringFromName(MOZ_UTF16("BookmarksToolbarFolderTitle"),
getter_Copies(rootTitle));
if (NS_FAILED(rv)) return rv;
rv = CreateRoot(mMainConn, NS_LITERAL_CSTRING("toolbar"),
NS_LITERAL_CSTRING("toolbar_____"), rootTitle);
if (NS_FAILED(rv)) return rv;
rv = bundle->GetStringFromName(MOZ_UTF16("TagsFolderTitle"),
getter_Copies(rootTitle));
if (NS_FAILED(rv)) return rv;
rv = CreateRoot(mMainConn, NS_LITERAL_CSTRING("tags"),
NS_LITERAL_CSTRING("tags________"), rootTitle);
if (NS_FAILED(rv)) return rv;
rv = bundle->GetStringFromName(MOZ_UTF16("OtherBookmarksFolderTitle"),
getter_Copies(rootTitle));
if (NS_FAILED(rv)) return rv;
rv = CreateRoot(mMainConn, NS_LITERAL_CSTRING("unfiled"),
NS_LITERAL_CSTRING("unfiled_____"), rootTitle);
if (NS_FAILED(rv)) return rv;
#if DEBUG
nsCOMPtr<mozIStorageStatement> stmt;
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT count(*), sum(position) FROM moz_bookmarks"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) return rv;
bool hasResult;
rv = stmt->ExecuteStep(&hasResult);
if (NS_FAILED(rv)) return rv;
MOZ_ASSERT(hasResult);
int32_t bookmarkCount = stmt->AsInt32(0);
int32_t positionSum = stmt->AsInt32(1);
MOZ_ASSERT(bookmarkCount == 5 && positionSum == 6);
#endif
return NS_OK;
}
nsresult
Database::InitFunctions()
{
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = GetUnreversedHostFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = MatchAutoCompleteFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = CalculateFrecencyFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = GenerateGUIDFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = FixupURLFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = FrecencyNotificationFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
rv = StoreLastInsertedIdFunction::create(mMainConn);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::InitTempEntities()
{
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = mMainConn->ExecuteSimpleSQL(CREATE_HISTORYVISITS_AFTERINSERT_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_HISTORYVISITS_AFTERDELETE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
// Add the triggers that update the moz_hosts table as necessary.
rv = mMainConn->ExecuteSimpleSQL(CREATE_PLACES_AFTERINSERT_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_UPDATEHOSTS_TEMP);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_UPDATEHOSTS_AFTERDELETE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_PLACES_AFTERDELETE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_PLACES_AFTERUPDATE_FRECENCY_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_PLACES_AFTERUPDATE_TYPED_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_BOOKMARKS_FOREIGNCOUNT_AFTERDELETE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_BOOKMARKS_FOREIGNCOUNT_AFTERINSERT_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_BOOKMARKS_FOREIGNCOUNT_AFTERUPDATE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_KEYWORDS_FOREIGNCOUNT_AFTERDELETE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_KEYWORDS_FOREIGNCOUNT_AFTERINSERT_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_KEYWORDS_FOREIGNCOUNT_AFTERUPDATE_TRIGGER);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::UpdateBookmarkRootTitles()
{
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIStringBundleService> bundleService =
services::GetStringBundleService();
NS_ENSURE_STATE(bundleService);
nsCOMPtr<nsIStringBundle> bundle;
nsresult rv = bundleService->CreateBundle(PLACES_BUNDLE, getter_AddRefs(bundle));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<mozIStorageAsyncStatement> stmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"UPDATE moz_bookmarks SET title = :new_title WHERE guid = :guid"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<mozIStorageBindingParamsArray> paramsArray;
rv = stmt->NewBindingParamsArray(getter_AddRefs(paramsArray));
if (NS_FAILED(rv)) return rv;
const char *rootGuids[] = { "menu________"
, "toolbar_____"
, "tags________"
, "unfiled_____"
};
const char *titleStringIDs[] = { "BookmarksMenuFolderTitle"
, "BookmarksToolbarFolderTitle"
, "TagsFolderTitle"
, "OtherBookmarksFolderTitle"
};
for (uint32_t i = 0; i < ArrayLength(rootGuids); ++i) {
nsXPIDLString title;
rv = bundle->GetStringFromName(NS_ConvertASCIItoUTF16(titleStringIDs[i]).get(),
getter_Copies(title));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<mozIStorageBindingParams> params;
rv = paramsArray->NewBindingParams(getter_AddRefs(params));
if (NS_FAILED(rv)) return rv;
rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"),
nsDependentCString(rootGuids[i]));
if (NS_FAILED(rv)) return rv;
rv = params->BindUTF8StringByName(NS_LITERAL_CSTRING("new_title"),
NS_ConvertUTF16toUTF8(title));
if (NS_FAILED(rv)) return rv;
rv = paramsArray->AddParams(params);
if (NS_FAILED(rv)) return rv;
}
rv = stmt->BindParameters(paramsArray);
if (NS_FAILED(rv)) return rv;
nsCOMPtr<mozIStoragePendingStatement> pendingStmt;
rv = stmt->ExecuteAsync(nullptr, getter_AddRefs(pendingStmt));
if (NS_FAILED(rv)) return rv;
return NS_OK;
}
nsresult
Database::MigrateV13Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Dynamic containers are no longer supported.
nsCOMPtr<mozIStorageAsyncStatement> deleteDynContainersStmt;
nsresult rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_bookmarks WHERE type = :item_type"),
getter_AddRefs(deleteDynContainersStmt));
rv = deleteDynContainersStmt->BindInt32ByName(
NS_LITERAL_CSTRING("item_type"),
nsINavBookmarksService::TYPE_DYNAMIC_CONTAINER
);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStoragePendingStatement> ps;
rv = deleteDynContainersStmt->ExecuteAsync(nullptr, getter_AddRefs(ps));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV15Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Drop moz_bookmarks_beforedelete_v1_trigger, since it's more expensive than
// useful.
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TRIGGER IF EXISTS moz_bookmarks_beforedelete_v1_trigger"
));
NS_ENSURE_SUCCESS(rv, rv);
// Remove any orphan keywords.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DELETE FROM moz_keywords "
"WHERE NOT EXISTS ( "
"SELECT id "
"FROM moz_bookmarks "
"WHERE keyword_id = moz_keywords.id "
")"
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV17Up()
{
MOZ_ASSERT(NS_IsMainThread());
bool tableExists = false;
nsresult rv = mMainConn->TableExists(NS_LITERAL_CSTRING("moz_hosts"), &tableExists);
NS_ENSURE_SUCCESS(rv, rv);
if (!tableExists) {
// For anyone who used in-development versions of this autocomplete,
// drop the old tables and its indexes.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX IF EXISTS moz_hostnames_frecencyindex"
));
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE IF EXISTS moz_hostnames"
));
NS_ENSURE_SUCCESS(rv, rv);
// Add the moz_hosts table so we can get hostnames for URL autocomplete.
rv = mMainConn->ExecuteSimpleSQL(CREATE_MOZ_HOSTS);
NS_ENSURE_SUCCESS(rv, rv);
}
// Fill the moz_hosts table with all the domains in moz_places.
nsCOMPtr<mozIStorageAsyncStatement> fillHostsStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"INSERT OR IGNORE INTO moz_hosts (host, frecency) "
"SELECT fixup_url(get_unreversed_host(h.rev_host)) AS host, "
"(SELECT MAX(frecency) FROM moz_places "
"WHERE rev_host = h.rev_host "
"OR rev_host = h.rev_host || 'www.' "
") AS frecency "
"FROM moz_places h "
"WHERE LENGTH(h.rev_host) > 1 "
"GROUP BY h.rev_host"
), getter_AddRefs(fillHostsStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStoragePendingStatement> ps;
rv = fillHostsStmt->ExecuteAsync(nullptr, getter_AddRefs(ps));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV18Up()
{
MOZ_ASSERT(NS_IsMainThread());
// moz_hosts should distinguish on typed entries.
// Check if the profile already has a typed column.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT typed FROM moz_hosts"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_hosts ADD COLUMN typed NOT NULL DEFAULT 0"
));
NS_ENSURE_SUCCESS(rv, rv);
}
// With the addition of the typed column the covering index loses its
// advantages. On the other side querying on host and (optionally) typed
// largely restricts the number of results, making scans decently fast.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX IF EXISTS moz_hosts_frecencyhostindex"
));
NS_ENSURE_SUCCESS(rv, rv);
// Update typed data.
nsCOMPtr<mozIStorageAsyncStatement> updateTypedStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"UPDATE moz_hosts SET typed = 1 WHERE host IN ( "
"SELECT fixup_url(get_unreversed_host(rev_host)) "
"FROM moz_places WHERE typed = 1 "
") "
), getter_AddRefs(updateTypedStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStoragePendingStatement> ps;
rv = updateTypedStmt->ExecuteAsync(nullptr, getter_AddRefs(ps));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV19Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Livemarks children are no longer bookmarks.
// Remove all children of folders annotated as livemarks.
nsCOMPtr<mozIStorageStatement> deleteLivemarksChildrenStmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_bookmarks WHERE parent IN("
"SELECT b.id FROM moz_bookmarks b "
"JOIN moz_items_annos a ON a.item_id = b.id "
"JOIN moz_anno_attributes n ON n.id = a.anno_attribute_id "
"WHERE b.type = :item_type AND n.name = :anno_name "
")"
), getter_AddRefs(deleteLivemarksChildrenStmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksChildrenStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_name"), NS_LITERAL_CSTRING(LMANNO_FEEDURI)
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksChildrenStmt->BindInt32ByName(
NS_LITERAL_CSTRING("item_type"), nsINavBookmarksService::TYPE_FOLDER
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksChildrenStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Clear obsolete livemark prefs.
(void)Preferences::ClearUser("browser.bookmarks.livemark_refresh_seconds");
(void)Preferences::ClearUser("browser.bookmarks.livemark_refresh_limit_count");
(void)Preferences::ClearUser("browser.bookmarks.livemark_refresh_delay_time");
// Remove the old status annotations.
nsCOMPtr<mozIStorageStatement> deleteLivemarksAnnosStmt;
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_items_annos WHERE anno_attribute_id IN("
"SELECT id FROM moz_anno_attributes "
"WHERE name IN (:anno_loading, :anno_loadfailed, :anno_expiration) "
")"
), getter_AddRefs(deleteLivemarksAnnosStmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_loading"), NS_LITERAL_CSTRING("livemark/loading")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_loadfailed"), NS_LITERAL_CSTRING("livemark/loadfailed")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_expiration"), NS_LITERAL_CSTRING("livemark/expiration")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Remove orphan annotation names.
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_anno_attributes "
"WHERE name IN (:anno_loading, :anno_loadfailed, :anno_expiration) "
), getter_AddRefs(deleteLivemarksAnnosStmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_loading"), NS_LITERAL_CSTRING("livemark/loading")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_loadfailed"), NS_LITERAL_CSTRING("livemark/loadfailed")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_expiration"), NS_LITERAL_CSTRING("livemark/expiration")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteLivemarksAnnosStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV20Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Remove obsolete bookmark GUID annotations.
nsCOMPtr<mozIStorageStatement> deleteOldBookmarkGUIDAnnosStmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_items_annos WHERE anno_attribute_id = ("
"SELECT id FROM moz_anno_attributes "
"WHERE name = :anno_guid"
")"
), getter_AddRefs(deleteOldBookmarkGUIDAnnosStmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteOldBookmarkGUIDAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_guid"), NS_LITERAL_CSTRING("placesInternal/GUID")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteOldBookmarkGUIDAnnosStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
// Remove the orphan annotation name.
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_anno_attributes "
"WHERE name = :anno_guid"
), getter_AddRefs(deleteOldBookmarkGUIDAnnosStmt));
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteOldBookmarkGUIDAnnosStmt->BindUTF8StringByName(
NS_LITERAL_CSTRING("anno_guid"), NS_LITERAL_CSTRING("placesInternal/GUID")
);
NS_ENSURE_SUCCESS(rv, rv);
rv = deleteOldBookmarkGUIDAnnosStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV21Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Add a prefix column to moz_hosts.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT prefix FROM moz_hosts"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_hosts ADD COLUMN prefix"
));
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult
Database::MigrateV22Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Reset all session IDs to 0 since we don't support them anymore.
// We don't set them to NULL to avoid breaking downgrades.
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE moz_historyvisits SET session = 0"
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV23Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Recalculate hosts prefixes.
nsCOMPtr<mozIStorageAsyncStatement> updatePrefixesStmt;
nsresult rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"UPDATE moz_hosts SET prefix = ( " HOSTS_PREFIX_PRIORITY_FRAGMENT ") "
), getter_AddRefs(updatePrefixesStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStoragePendingStatement> ps;
rv = updatePrefixesStmt->ExecuteAsync(nullptr, getter_AddRefs(ps));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV24Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Add a foreign_count column to moz_places
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT foreign_count FROM moz_places"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_places ADD COLUMN foreign_count INTEGER DEFAULT 0 NOT NULL"));
NS_ENSURE_SUCCESS(rv, rv);
}
// Adjust counts for all the rows
nsCOMPtr<mozIStorageStatement> updateStmt;
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_places SET foreign_count = "
"(SELECT count(*) FROM moz_bookmarks WHERE fk = moz_places.id) "
), getter_AddRefs(updateStmt));
NS_ENSURE_SUCCESS(rv, rv);
mozStorageStatementScoper updateScoper(updateStmt);
rv = updateStmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV25Up()
{
MOZ_ASSERT(NS_IsMainThread());
// Change bookmark roots GUIDs to constant values.
// If moz_bookmarks_roots doesn't exist anymore, it's because we finally have
// been able to remove it. In such a case, we already assigned constant GUIDs
// to the roots and we can skip this migration.
{
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT root_name FROM moz_bookmarks_roots"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
return NS_OK;
}
}
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"UPDATE moz_bookmarks SET guid = :guid "
"WHERE id = (SELECT folder_id FROM moz_bookmarks_roots WHERE root_name = :name) "
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
const char *rootNames[] = { "places", "menu", "toolbar", "tags", "unfiled" };
const char *rootGuids[] = { "root________"
, "menu________"
, "toolbar_____"
, "tags________"
, "unfiled_____"
};
for (uint32_t i = 0; i < ArrayLength(rootNames); ++i) {
// Since this is using the synchronous API, we cannot use
// a BindingParamsArray.
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("name"),
nsDependentCString(rootNames[i]));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->BindUTF8StringByName(NS_LITERAL_CSTRING("guid"),
nsDependentCString(rootGuids[i]));
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
}
return NS_OK;
}
nsresult
Database::MigrateV26Up() {
MOZ_ASSERT(NS_IsMainThread());
// Round down dateAdded and lastModified values to milliseconds precision.
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE moz_bookmarks SET dateAdded = dateAdded - dateAdded % 1000, "
" lastModified = lastModified - lastModified % 1000"));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV27Up() {
MOZ_ASSERT(NS_IsMainThread());
// Change keywords store, moving their relation from bookmarks to urls.
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT place_id FROM moz_keywords"
), getter_AddRefs(stmt));
if (NS_FAILED(rv)) {
// Even if these 2 columns have a unique constraint, we allow NULL values
// for backwards compatibility. NULL never breaks a unique constraint.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_keywords ADD COLUMN place_id INTEGER"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"ALTER TABLE moz_keywords ADD COLUMN post_data TEXT"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(CREATE_IDX_MOZ_KEYWORDS_PLACEPOSTDATA);
NS_ENSURE_SUCCESS(rv, rv);
}
// Associate keywords with uris. A keyword could be associated to multiple
// bookmarks uris, or multiple keywords could be associated to the same uri.
// The new system only allows multiple uris per keyword, provided they have
// a different post_data value.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"INSERT OR REPLACE INTO moz_keywords (id, keyword, place_id, post_data) "
"SELECT k.id, k.keyword, h.id, MAX(a.content) "
"FROM moz_places h "
"JOIN moz_bookmarks b ON b.fk = h.id "
"JOIN moz_keywords k ON k.id = b.keyword_id "
"LEFT JOIN moz_items_annos a ON a.item_id = b.id "
"AND a.anno_attribute_id = (SELECT id FROM moz_anno_attributes "
"WHERE name = 'bookmarkProperties/POSTData') "
"WHERE k.place_id ISNULL "
"GROUP BY keyword"));
NS_ENSURE_SUCCESS(rv, rv);
// Remove any keyword that points to a non-existing place id.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DELETE FROM moz_keywords "
"WHERE NOT EXISTS (SELECT 1 FROM moz_places WHERE id = moz_keywords.place_id)"));
NS_ENSURE_SUCCESS(rv, rv);
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE moz_bookmarks SET keyword_id = NULL "
"WHERE NOT EXISTS (SELECT 1 FROM moz_keywords WHERE id = moz_bookmarks.keyword_id)"));
NS_ENSURE_SUCCESS(rv, rv);
// Adjust foreign_count for all the rows.
rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE moz_places SET foreign_count = "
"(SELECT count(*) FROM moz_bookmarks WHERE fk = moz_places.id) + "
"(SELECT count(*) FROM moz_keywords WHERE place_id = moz_places.id) "
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV28Up() {
MOZ_ASSERT(NS_IsMainThread());
// v27 migration was bogus and set some unrelated annotations as post_data for
// keywords having an annotated bookmark.
// The current v27 migration function is fixed, but we still need to handle
// users that hit the bogus version. Since we can't distinguish, we'll just
// set again all of the post data.
DebugOnly<nsresult> rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"UPDATE moz_keywords "
"SET post_data = ( "
"SELECT content FROM moz_items_annos a "
"JOIN moz_anno_attributes n ON n.id = a.anno_attribute_id "
"JOIN moz_bookmarks b on b.id = a.item_id "
"WHERE n.name = 'bookmarkProperties/POSTData' "
"AND b.keyword_id = moz_keywords.id "
"ORDER BY b.lastModified DESC "
"LIMIT 1 "
") "
"WHERE EXISTS(SELECT 1 FROM moz_bookmarks WHERE keyword_id = moz_keywords.id) "
));
// In case the update fails a constraint, we don't want to throw away the
// whole database for just a few keywords. In rare cases the user might have
// to recreate them. Though, at this point, there shouldn't be 2 keywords
// pointing to the same url and post data, cause the previous migration step
// removed them.
MOZ_ASSERT(NS_SUCCEEDED(rv));
return NS_OK;
}
nsresult
Database::MigrateV30Up() {
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP INDEX IF EXISTS moz_favicons_guid_uniqueindex"
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV31Up() {
MOZ_ASSERT(NS_IsMainThread());
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"DROP TABLE IF EXISTS moz_bookmarks_roots"
));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
nsresult
Database::MigrateV32Up() {
MOZ_ASSERT(NS_IsMainThread());
// Remove some old and no more used Places preferences that may be confusing
// for the user.
mozilla::Unused << Preferences::ClearUser("places.history.expiration.transient_optimal_database_size");
mozilla::Unused << Preferences::ClearUser("places.last_vacuum");
mozilla::Unused << Preferences::ClearUser("browser.history_expire_sites");
mozilla::Unused << Preferences::ClearUser("browser.history_expire_days.mirror");
mozilla::Unused << Preferences::ClearUser("browser.history_expire_days_min");
// For performance reasons we want to remove too long urls from history.
// We cannot use the moz_places triggers here, cause they are defined only
// after the schema migration. Thus we need to collect the hosts that need to
// be updated first.
nsresult rv = mMainConn->ExecuteSimpleSQL(NS_LITERAL_CSTRING(
"CREATE TEMP TABLE moz_migrate_v32_temp ("
"host TEXT PRIMARY KEY "
") WITHOUT ROWID "
));
NS_ENSURE_SUCCESS(rv, rv);
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"INSERT OR IGNORE INTO moz_migrate_v32_temp (host) "
"SELECT fixup_url(get_unreversed_host(rev_host)) "
"FROM moz_places WHERE LENGTH(url) > :maxlen AND foreign_count = 0"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("maxlen"), MaxUrlLength());
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
}
// Now remove the pages with a long url.
{
nsCOMPtr<mozIStorageStatement> stmt;
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_places WHERE LENGTH(url) > :maxlen AND foreign_count = 0"
), getter_AddRefs(stmt));
NS_ENSURE_SUCCESS(rv, rv);
mozStorageStatementScoper scoper(stmt);
rv = stmt->BindInt32ByName(NS_LITERAL_CSTRING("maxlen"), MaxUrlLength());
NS_ENSURE_SUCCESS(rv, rv);
rv = stmt->Execute();
NS_ENSURE_SUCCESS(rv, rv);
}
// Expire orphan visits and update moz_hosts.
// These may be a bit more expensive and are not critical for the DB
// functionality, so we execute them asynchronously.
nsCOMPtr<mozIStorageAsyncStatement> expireOrphansStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_historyvisits "
"WHERE NOT EXISTS (SELECT 1 FROM moz_places WHERE id = place_id)"
), getter_AddRefs(expireOrphansStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStorageAsyncStatement> deleteHostsStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"DELETE FROM moz_hosts "
"WHERE host IN (SELECT host FROM moz_migrate_v32_temp) "
"AND NOT EXISTS("
"SELECT 1 FROM moz_places "
"WHERE rev_host = get_unreversed_host(host || '.') || '.' "
"OR rev_host = get_unreversed_host(host || '.') || '.www.' "
"); "
), getter_AddRefs(deleteHostsStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStorageAsyncStatement> updateHostsStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"UPDATE moz_hosts "
"SET prefix = (" HOSTS_PREFIX_PRIORITY_FRAGMENT ") "
"WHERE host IN (SELECT host FROM moz_migrate_v32_temp) "
), getter_AddRefs(updateHostsStmt));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<mozIStorageAsyncStatement> dropTableStmt;
rv = mMainConn->CreateAsyncStatement(NS_LITERAL_CSTRING(
"DROP TABLE IF EXISTS moz_migrate_v32_temp"
), getter_AddRefs(dropTableStmt));
NS_ENSURE_SUCCESS(rv, rv);
mozIStorageBaseStatement *stmts[] = {
expireOrphansStmt,
deleteHostsStmt,
updateHostsStmt,
dropTableStmt
};
nsCOMPtr<mozIStoragePendingStatement> ps;
rv = mMainConn->ExecuteAsync(stmts, ArrayLength(stmts), nullptr,
getter_AddRefs(ps));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
void
Database::Shutdown()
{
// As the last step in the shutdown path, finalize the database handle.
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mClosed);
// Break cycles with the shutdown blockers.
mClientsShutdown = nullptr;
nsCOMPtr<mozIStorageCompletionCallback> connectionShutdown = mConnectionShutdown.forget();
if (!mMainConn) {
// The connection has never been initialized. Just mark it as closed.
mClosed = true;
(void)connectionShutdown->Complete(NS_OK, nullptr);
return;
}
#ifdef DEBUG
{ // Sanity check for missing guids.
bool haveNullGuids = false;
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT 1 "
"FROM moz_places "
"WHERE guid IS NULL "
), getter_AddRefs(stmt));
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = stmt->ExecuteStep(&haveNullGuids);
MOZ_ASSERT(NS_SUCCEEDED(rv));
MOZ_ASSERT(!haveNullGuids && "Found a page without a GUID!");
rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT 1 "
"FROM moz_bookmarks "
"WHERE guid IS NULL "
), getter_AddRefs(stmt));
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = stmt->ExecuteStep(&haveNullGuids);
MOZ_ASSERT(NS_SUCCEEDED(rv));
MOZ_ASSERT(!haveNullGuids && "Found a bookmark without a GUID!");
}
{ // Sanity check for unrounded dateAdded and lastModified values (bug
// 1107308).
bool hasUnroundedDates = false;
nsCOMPtr<mozIStorageStatement> stmt;
nsresult rv = mMainConn->CreateStatement(NS_LITERAL_CSTRING(
"SELECT 1 "
"FROM moz_bookmarks "
"WHERE dateAdded % 1000 > 0 OR lastModified % 1000 > 0 LIMIT 1"
), getter_AddRefs(stmt));
MOZ_ASSERT(NS_SUCCEEDED(rv));
rv = stmt->ExecuteStep(&hasUnroundedDates);
MOZ_ASSERT(NS_SUCCEEDED(rv));
MOZ_ASSERT(!hasUnroundedDates && "Found unrounded dates!");
}
#endif
mMainThreadStatements.FinalizeStatements();
mMainThreadAsyncStatements.FinalizeStatements();
RefPtr< FinalizeStatementCacheProxy<mozIStorageStatement> > event =
new FinalizeStatementCacheProxy<mozIStorageStatement>(
mAsyncThreadStatements,
NS_ISUPPORTS_CAST(nsIObserver*, this)
);
DispatchToAsyncThread(event);
mClosed = true;
(void)mMainConn->AsyncClose(connectionShutdown);
}
////////////////////////////////////////////////////////////////////////////////
//// nsIObserver
NS_IMETHODIMP
Database::Observe(nsISupports *aSubject,
const char *aTopic,
const char16_t *aData)
{
MOZ_ASSERT(NS_IsMainThread());
if (strcmp(aTopic, TOPIC_PROFILE_CHANGE_TEARDOWN) == 0) {
// Tests simulating shutdown may cause multiple notifications.
if (IsShutdownStarted()) {
return NS_OK;
}
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
NS_ENSURE_STATE(os);
// If shutdown happens in the same mainthread loop as init, observers could
// handle the places-init-complete notification after xpcom-shutdown, when
// the connection does not exist anymore. Removing those observers would
// be less expensive but may cause their RemoveObserver calls to throw.
// Thus notify the topic now, so they stop listening for it.
nsCOMPtr<nsISimpleEnumerator> e;
if (NS_SUCCEEDED(os->EnumerateObservers(TOPIC_PLACES_INIT_COMPLETE,
getter_AddRefs(e))) && e) {
bool hasMore = false;
while (NS_SUCCEEDED(e->HasMoreElements(&hasMore)) && hasMore) {
nsCOMPtr<nsISupports> supports;
if (NS_SUCCEEDED(e->GetNext(getter_AddRefs(supports)))) {
nsCOMPtr<nsIObserver> observer = do_QueryInterface(supports);
(void)observer->Observe(observer, TOPIC_PLACES_INIT_COMPLETE, nullptr);
}
}
}
// Notify all Places users that we are about to shutdown.
(void)os->NotifyObservers(nullptr, TOPIC_PLACES_SHUTDOWN, nullptr);
} else if (strcmp(aTopic, TOPIC_SIMULATE_PLACES_SHUTDOWN) == 0) {
// This notification is (and must be) only used by tests that are trying
// to simulate Places shutdown out of the normal shutdown path.
// Tests simulating shutdown may cause re-entrance.
if (IsShutdownStarted()) {
return NS_OK;
}
// We are simulating a shutdown, so invoke the shutdown blockers,
// wait for them, then proceed with connection shutdown.
// Since we are already going through shutdown, but it's not the real one,
// we won't need to block the real one anymore, so we can unblock it.
{
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase = GetProfileChangeTeardownPhase();
if (shutdownPhase) {
shutdownPhase->RemoveBlocker(mClientsShutdown.get());
}
(void)mClientsShutdown->BlockShutdown(nullptr);
}
// Spin the events loop until the clients are done.
// Note, this is just for tests, specifically test_clearHistory_shutdown.js
while (mClientsShutdown->State() != PlacesShutdownBlocker::States::RECEIVED_DONE) {
(void)NS_ProcessNextEvent();
}
{
nsCOMPtr<nsIAsyncShutdownClient> shutdownPhase = GetProfileBeforeChangePhase();
if (shutdownPhase) {
shutdownPhase->RemoveBlocker(mConnectionShutdown.get());
}
(void)mConnectionShutdown->BlockShutdown(nullptr);
}
}
return NS_OK;
}
uint32_t
Database::MaxUrlLength() {
MOZ_ASSERT(NS_IsMainThread());
if (!mMaxUrlLength) {
mMaxUrlLength = Preferences::GetInt(PREF_HISTORY_MAXURLLEN,
PREF_HISTORY_MAXURLLEN_DEFAULT);
if (mMaxUrlLength < 255 || mMaxUrlLength > INT32_MAX) {
mMaxUrlLength = PREF_HISTORY_MAXURLLEN_DEFAULT;
}
}
return mMaxUrlLength;
}
} // namespace places
} // namespace mozilla
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