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Diffstat (limited to '')
| -rw-r--r-- | netwerk/cookie/CookiePersistentStorage.cpp | 2032 |
1 files changed, 2032 insertions, 0 deletions
diff --git a/netwerk/cookie/CookiePersistentStorage.cpp b/netwerk/cookie/CookiePersistentStorage.cpp new file mode 100644 index 0000000000..832d264546 --- /dev/null +++ b/netwerk/cookie/CookiePersistentStorage.cpp @@ -0,0 +1,2032 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "Cookie.h" +#include "CookieCommons.h" +#include "CookieLogging.h" +#include "CookiePersistentStorage.h" + +#include "mozilla/FileUtils.h" +#include "mozilla/ScopeExit.h" +#include "mozilla/Telemetry.h" +#include "mozIStorageAsyncStatement.h" +#include "mozIStorageError.h" +#include "mozIStorageFunction.h" +#include "mozIStorageService.h" +#include "mozStorageHelper.h" +#include "nsAppDirectoryServiceDefs.h" +#include "nsICookieService.h" +#include "nsIEffectiveTLDService.h" +#include "nsILineInputStream.h" +#include "nsNetUtil.h" +#include "nsVariant.h" +#include "prprf.h" + +// XXX_hack. See bug 178993. +// This is a hack to hide HttpOnly cookies from older browsers +#define HTTP_ONLY_PREFIX "#HttpOnly_" + +constexpr auto COOKIES_SCHEMA_VERSION = 12; + +// parameter indexes; see |Read| +constexpr auto IDX_NAME = 0; +constexpr auto IDX_VALUE = 1; +constexpr auto IDX_HOST = 2; +constexpr auto IDX_PATH = 3; +constexpr auto IDX_EXPIRY = 4; +constexpr auto IDX_LAST_ACCESSED = 5; +constexpr auto IDX_CREATION_TIME = 6; +constexpr auto IDX_SECURE = 7; +constexpr auto IDX_HTTPONLY = 8; +constexpr auto IDX_ORIGIN_ATTRIBUTES = 9; +constexpr auto IDX_SAME_SITE = 10; +constexpr auto IDX_RAW_SAME_SITE = 11; +constexpr auto IDX_SCHEME_MAP = 12; + +#define COOKIES_FILE "cookies.sqlite" + +namespace mozilla { +namespace net { + +namespace { + +void BindCookieParameters(mozIStorageBindingParamsArray* aParamsArray, + const CookieKey& aKey, const Cookie* aCookie) { + NS_ASSERTION(aParamsArray, + "Null params array passed to BindCookieParameters!"); + NS_ASSERTION(aCookie, "Null cookie passed to BindCookieParameters!"); + + // Use the asynchronous binding methods to ensure that we do not acquire the + // database lock. + nsCOMPtr<mozIStorageBindingParams> params; + DebugOnly<nsresult> rv = + aParamsArray->NewBindingParams(getter_AddRefs(params)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsAutoCString suffix; + aKey.mOriginAttributes.CreateSuffix(suffix); + rv = params->BindUTF8StringByName("originAttributes"_ns, suffix); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("name"_ns, aCookie->Name()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("value"_ns, aCookie->Value()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("host"_ns, aCookie->Host()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("path"_ns, aCookie->Path()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt64ByName("expiry"_ns, aCookie->Expiry()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt64ByName("lastAccessed"_ns, aCookie->LastAccessed()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt64ByName("creationTime"_ns, aCookie->CreationTime()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt32ByName("isSecure"_ns, aCookie->IsSecure()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt32ByName("isHttpOnly"_ns, aCookie->IsHttpOnly()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt32ByName("sameSite"_ns, aCookie->SameSite()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt32ByName("rawSameSite"_ns, aCookie->RawSameSite()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindInt32ByName("schemeMap"_ns, aCookie->SchemeMap()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + // Bind the params to the array. + rv = aParamsArray->AddParams(params); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +class ConvertAppIdToOriginAttrsSQLFunction final : public mozIStorageFunction { + ~ConvertAppIdToOriginAttrsSQLFunction() = default; + + NS_DECL_ISUPPORTS + NS_DECL_MOZISTORAGEFUNCTION +}; + +NS_IMPL_ISUPPORTS(ConvertAppIdToOriginAttrsSQLFunction, mozIStorageFunction); + +NS_IMETHODIMP +ConvertAppIdToOriginAttrsSQLFunction::OnFunctionCall( + mozIStorageValueArray* aFunctionArguments, nsIVariant** aResult) { + nsresult rv; + int32_t inIsolatedMozBrowser; + + rv = aFunctionArguments->GetInt32(1, &inIsolatedMozBrowser); + NS_ENSURE_SUCCESS(rv, rv); + + // Create an originAttributes object by inIsolatedMozBrowser. + // Then create the originSuffix string from this object. + OriginAttributes attrs(inIsolatedMozBrowser != 0); + nsAutoCString suffix; + attrs.CreateSuffix(suffix); + + RefPtr<nsVariant> outVar(new nsVariant()); + rv = outVar->SetAsAUTF8String(suffix); + NS_ENSURE_SUCCESS(rv, rv); + + outVar.forget(aResult); + return NS_OK; +} + +class SetAppIdFromOriginAttributesSQLFunction final + : public mozIStorageFunction { + ~SetAppIdFromOriginAttributesSQLFunction() = default; + + NS_DECL_ISUPPORTS + NS_DECL_MOZISTORAGEFUNCTION +}; + +NS_IMPL_ISUPPORTS(SetAppIdFromOriginAttributesSQLFunction, mozIStorageFunction); + +NS_IMETHODIMP +SetAppIdFromOriginAttributesSQLFunction::OnFunctionCall( + mozIStorageValueArray* aFunctionArguments, nsIVariant** aResult) { + nsresult rv; + nsAutoCString suffix; + OriginAttributes attrs; + + rv = aFunctionArguments->GetUTF8String(0, suffix); + NS_ENSURE_SUCCESS(rv, rv); + bool success = attrs.PopulateFromSuffix(suffix); + NS_ENSURE_TRUE(success, NS_ERROR_FAILURE); + + RefPtr<nsVariant> outVar(new nsVariant()); + rv = outVar->SetAsInt32(0); // deprecated appId! + NS_ENSURE_SUCCESS(rv, rv); + + outVar.forget(aResult); + return NS_OK; +} + +class SetInBrowserFromOriginAttributesSQLFunction final + : public mozIStorageFunction { + ~SetInBrowserFromOriginAttributesSQLFunction() = default; + + NS_DECL_ISUPPORTS + NS_DECL_MOZISTORAGEFUNCTION +}; + +NS_IMPL_ISUPPORTS(SetInBrowserFromOriginAttributesSQLFunction, + mozIStorageFunction); + +NS_IMETHODIMP +SetInBrowserFromOriginAttributesSQLFunction::OnFunctionCall( + mozIStorageValueArray* aFunctionArguments, nsIVariant** aResult) { + nsresult rv; + nsAutoCString suffix; + OriginAttributes attrs; + + rv = aFunctionArguments->GetUTF8String(0, suffix); + NS_ENSURE_SUCCESS(rv, rv); + bool success = attrs.PopulateFromSuffix(suffix); + NS_ENSURE_TRUE(success, NS_ERROR_FAILURE); + + RefPtr<nsVariant> outVar(new nsVariant()); + rv = outVar->SetAsInt32(attrs.mInIsolatedMozBrowser); + NS_ENSURE_SUCCESS(rv, rv); + + outVar.forget(aResult); + return NS_OK; +} + +/****************************************************************************** + * DBListenerErrorHandler impl: + * Parent class for our async storage listeners that handles the logging of + * errors. + ******************************************************************************/ +class DBListenerErrorHandler : public mozIStorageStatementCallback { + protected: + explicit DBListenerErrorHandler(CookiePersistentStorage* dbState) + : mStorage(dbState) {} + RefPtr<CookiePersistentStorage> mStorage; + virtual const char* GetOpType() = 0; + + public: + NS_IMETHOD HandleError(mozIStorageError* aError) override { + if (MOZ_LOG_TEST(gCookieLog, LogLevel::Warning)) { + int32_t result = -1; + aError->GetResult(&result); + + nsAutoCString message; + aError->GetMessage(message); + COOKIE_LOGSTRING( + LogLevel::Warning, + ("DBListenerErrorHandler::HandleError(): Error %d occurred while " + "performing operation '%s' with message '%s'; rebuilding database.", + result, GetOpType(), message.get())); + } + + // Rebuild the database. + mStorage->HandleCorruptDB(); + + return NS_OK; + } +}; + +/****************************************************************************** + * InsertCookieDBListener impl: + * mozIStorageStatementCallback used to track asynchronous insertion operations. + ******************************************************************************/ +class InsertCookieDBListener final : public DBListenerErrorHandler { + private: + const char* GetOpType() override { return "INSERT"; } + + ~InsertCookieDBListener() = default; + + public: + NS_DECL_ISUPPORTS + + explicit InsertCookieDBListener(CookiePersistentStorage* dbState) + : DBListenerErrorHandler(dbState) {} + NS_IMETHOD HandleResult(mozIStorageResultSet* /*aResultSet*/) override { + MOZ_ASSERT_UNREACHABLE( + "Unexpected call to " + "InsertCookieDBListener::HandleResult"); + return NS_OK; + } + NS_IMETHOD HandleCompletion(uint16_t aReason) override { + // If we were rebuilding the db and we succeeded, make our mCorruptFlag say + // so. + if (mStorage->GetCorruptFlag() == CookiePersistentStorage::REBUILDING && + aReason == mozIStorageStatementCallback::REASON_FINISHED) { + COOKIE_LOGSTRING( + LogLevel::Debug, + ("InsertCookieDBListener::HandleCompletion(): rebuild complete")); + mStorage->SetCorruptFlag(CookiePersistentStorage::OK); + } + + // This notification is just for testing. + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + if (os) { + os->NotifyObservers(nullptr, "cookie-saved-on-disk", nullptr); + } + + return NS_OK; + } +}; + +NS_IMPL_ISUPPORTS(InsertCookieDBListener, mozIStorageStatementCallback) + +/****************************************************************************** + * UpdateCookieDBListener impl: + * mozIStorageStatementCallback used to track asynchronous update operations. + ******************************************************************************/ +class UpdateCookieDBListener final : public DBListenerErrorHandler { + private: + const char* GetOpType() override { return "UPDATE"; } + + ~UpdateCookieDBListener() = default; + + public: + NS_DECL_ISUPPORTS + + explicit UpdateCookieDBListener(CookiePersistentStorage* dbState) + : DBListenerErrorHandler(dbState) {} + NS_IMETHOD HandleResult(mozIStorageResultSet* /*aResultSet*/) override { + MOZ_ASSERT_UNREACHABLE( + "Unexpected call to " + "UpdateCookieDBListener::HandleResult"); + return NS_OK; + } + NS_IMETHOD HandleCompletion(uint16_t /*aReason*/) override { return NS_OK; } +}; + +NS_IMPL_ISUPPORTS(UpdateCookieDBListener, mozIStorageStatementCallback) + +/****************************************************************************** + * RemoveCookieDBListener impl: + * mozIStorageStatementCallback used to track asynchronous removal operations. + ******************************************************************************/ +class RemoveCookieDBListener final : public DBListenerErrorHandler { + private: + const char* GetOpType() override { return "REMOVE"; } + + ~RemoveCookieDBListener() = default; + + public: + NS_DECL_ISUPPORTS + + explicit RemoveCookieDBListener(CookiePersistentStorage* dbState) + : DBListenerErrorHandler(dbState) {} + NS_IMETHOD HandleResult(mozIStorageResultSet* /*aResultSet*/) override { + MOZ_ASSERT_UNREACHABLE( + "Unexpected call to " + "RemoveCookieDBListener::HandleResult"); + return NS_OK; + } + NS_IMETHOD HandleCompletion(uint16_t /*aReason*/) override { return NS_OK; } +}; + +NS_IMPL_ISUPPORTS(RemoveCookieDBListener, mozIStorageStatementCallback) + +/****************************************************************************** + * CloseCookieDBListener imp: + * Static mozIStorageCompletionCallback used to notify when the database is + * successfully closed. + ******************************************************************************/ +class CloseCookieDBListener final : public mozIStorageCompletionCallback { + ~CloseCookieDBListener() = default; + + public: + explicit CloseCookieDBListener(CookiePersistentStorage* dbState) + : mStorage(dbState) {} + RefPtr<CookiePersistentStorage> mStorage; + NS_DECL_ISUPPORTS + + NS_IMETHOD Complete(nsresult /*status*/, nsISupports* /*value*/) override { + mStorage->HandleDBClosed(); + return NS_OK; + } +}; + +NS_IMPL_ISUPPORTS(CloseCookieDBListener, mozIStorageCompletionCallback) + +} // namespace + +// static +already_AddRefed<CookiePersistentStorage> CookiePersistentStorage::Create() { + RefPtr<CookiePersistentStorage> storage = new CookiePersistentStorage(); + storage->Init(); + storage->Activate(); + + return storage.forget(); +} + +CookiePersistentStorage::CookiePersistentStorage() + : mMonitor("CookiePersistentStorage"), + mInitialized(false), + mCorruptFlag(OK) {} + +void CookiePersistentStorage::NotifyChangedInternal(nsISupports* aSubject, + const char16_t* aData, + bool aOldCookieIsSession) { + // Notify for topic "session-cookie-changed" to update the copy of session + // cookies in session restore component. + + // Filter out notifications for individual non-session cookies. + if (u"changed"_ns.Equals(aData) || u"deleted"_ns.Equals(aData) || + u"added"_ns.Equals(aData)) { + nsCOMPtr<nsICookie> xpcCookie = do_QueryInterface(aSubject); + MOZ_ASSERT(xpcCookie); + auto* cookie = static_cast<Cookie*>(xpcCookie.get()); + if (!cookie->IsSession() && !aOldCookieIsSession) { + return; + } + } + + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + if (os) { + os->NotifyObservers(aSubject, "session-cookie-changed", aData); + } +} + +void CookiePersistentStorage::RemoveAllInternal() { + // clear the cookie file + if (mDBConn) { + nsCOMPtr<mozIStorageAsyncStatement> stmt; + nsresult rv = mDBConn->CreateAsyncStatement("DELETE FROM moz_cookies"_ns, + getter_AddRefs(stmt)); + if (NS_SUCCEEDED(rv)) { + nsCOMPtr<mozIStoragePendingStatement> handle; + rv = stmt->ExecuteAsync(mRemoveListener, getter_AddRefs(handle)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + } else { + // Recreate the database. + COOKIE_LOGSTRING(LogLevel::Debug, + ("RemoveAll(): corruption detected with rv 0x%" PRIx32, + static_cast<uint32_t>(rv))); + HandleCorruptDB(); + } + } +} + +void CookiePersistentStorage::HandleCorruptDB() { + COOKIE_LOGSTRING(LogLevel::Debug, + ("HandleCorruptDB(): CookieStorage %p has mCorruptFlag %u", + this, mCorruptFlag)); + + // Mark the database corrupt, so the close listener can begin reconstructing + // it. + switch (mCorruptFlag) { + case OK: { + // Move to 'closing' state. + mCorruptFlag = CLOSING_FOR_REBUILD; + + CleanupCachedStatements(); + mDBConn->AsyncClose(mCloseListener); + CleanupDBConnection(); + break; + } + case CLOSING_FOR_REBUILD: { + // We had an error while waiting for close completion. That's OK, just + // ignore it -- we're rebuilding anyway. + return; + } + case REBUILDING: { + // We had an error while rebuilding the DB. Game over. Close the database + // and let the close handler do nothing; then we'll move it out of the + // way. + CleanupCachedStatements(); + if (mDBConn) { + mDBConn->AsyncClose(mCloseListener); + } + CleanupDBConnection(); + break; + } + } +} + +void CookiePersistentStorage::RemoveCookiesWithOriginAttributes( + const OriginAttributesPattern& aPattern, const nsACString& aBaseDomain) { + mozStorageTransaction transaction(mDBConn, false); + + // XXX Handle the error, bug 1696130. + Unused << NS_WARN_IF(NS_FAILED(transaction.Start())); + + CookieStorage::RemoveCookiesWithOriginAttributes(aPattern, aBaseDomain); + + DebugOnly<nsresult> rv = transaction.Commit(); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +void CookiePersistentStorage::RemoveCookiesFromExactHost( + const nsACString& aHost, const nsACString& aBaseDomain, + const OriginAttributesPattern& aPattern) { + mozStorageTransaction transaction(mDBConn, false); + + // XXX Handle the error, bug 1696130. + Unused << NS_WARN_IF(NS_FAILED(transaction.Start())); + + CookieStorage::RemoveCookiesFromExactHost(aHost, aBaseDomain, aPattern); + + DebugOnly<nsresult> rv = transaction.Commit(); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +void CookiePersistentStorage::RemoveCookieFromDB(const CookieListIter& aIter) { + // if it's a non-session cookie, remove it from the db + if (aIter.Cookie()->IsSession() || !mDBConn) { + return; + } + + nsCOMPtr<mozIStorageBindingParamsArray> paramsArray; + mStmtDelete->NewBindingParamsArray(getter_AddRefs(paramsArray)); + + PrepareCookieRemoval(aIter, paramsArray); + + DebugOnly<nsresult> rv = mStmtDelete->BindParameters(paramsArray); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsCOMPtr<mozIStoragePendingStatement> handle; + rv = mStmtDelete->ExecuteAsync(mRemoveListener, getter_AddRefs(handle)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +void CookiePersistentStorage::PrepareCookieRemoval( + const CookieListIter& aIter, mozIStorageBindingParamsArray* aParamsArray) { + // if it's a non-session cookie, remove it from the db + if (aIter.Cookie()->IsSession() || !mDBConn) { + return; + } + + nsCOMPtr<mozIStorageBindingParams> params; + aParamsArray->NewBindingParams(getter_AddRefs(params)); + + DebugOnly<nsresult> rv = + params->BindUTF8StringByName("name"_ns, aIter.Cookie()->Name()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("host"_ns, aIter.Cookie()->Host()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("path"_ns, aIter.Cookie()->Path()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsAutoCString suffix; + aIter.Cookie()->OriginAttributesRef().CreateSuffix(suffix); + rv = params->BindUTF8StringByName("originAttributes"_ns, suffix); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = aParamsArray->AddParams(params); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +// Null out the statements. +// This must be done before closing the connection. +void CookiePersistentStorage::CleanupCachedStatements() { + mStmtInsert = nullptr; + mStmtDelete = nullptr; + mStmtUpdate = nullptr; +} + +// Null out the listeners, and the database connection itself. This +// will not null out the statements, cancel a pending read or +// asynchronously close the connection -- these must be done +// beforehand if necessary. +void CookiePersistentStorage::CleanupDBConnection() { + MOZ_ASSERT(!mStmtInsert, "mStmtInsert has been cleaned up"); + MOZ_ASSERT(!mStmtDelete, "mStmtDelete has been cleaned up"); + MOZ_ASSERT(!mStmtUpdate, "mStmtUpdate has been cleaned up"); + + // Null out the database connections. If 'mDBConn' has not been used for any + // asynchronous operations yet, this will synchronously close it; otherwise, + // it's expected that the caller has performed an AsyncClose prior. + mDBConn = nullptr; + + // Manually null out our listeners. This is necessary because they hold a + // strong ref to the CookieStorage itself. They'll stay alive until whatever + // statements are still executing complete. + mInsertListener = nullptr; + mUpdateListener = nullptr; + mRemoveListener = nullptr; + mCloseListener = nullptr; +} + +void CookiePersistentStorage::Close() { + if (mThread) { + mThread->Shutdown(); + mThread = nullptr; + } + + // Cleanup cached statements before we can close anything. + CleanupCachedStatements(); + + if (mDBConn) { + // Asynchronously close the connection. We will null it below. + mDBConn->AsyncClose(mCloseListener); + } + + CleanupDBConnection(); + + mInitialized = false; + mInitializedDBConn = false; +} + +void CookiePersistentStorage::StoreCookie( + const nsACString& aBaseDomain, const OriginAttributes& aOriginAttributes, + Cookie* aCookie) { + // if it's a non-session cookie and hasn't just been read from the db, write + // it out. + if (aCookie->IsSession() || !mDBConn) { + return; + } + + nsCOMPtr<mozIStorageBindingParamsArray> paramsArray; + mStmtInsert->NewBindingParamsArray(getter_AddRefs(paramsArray)); + + CookieKey key(aBaseDomain, aOriginAttributes); + BindCookieParameters(paramsArray, key, aCookie); + + MaybeStoreCookiesToDB(paramsArray); +} + +void CookiePersistentStorage::MaybeStoreCookiesToDB( + mozIStorageBindingParamsArray* aParamsArray) { + if (!aParamsArray) { + return; + } + + uint32_t length; + aParamsArray->GetLength(&length); + if (!length) { + return; + } + + DebugOnly<nsresult> rv = mStmtInsert->BindParameters(aParamsArray); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsCOMPtr<mozIStoragePendingStatement> handle; + rv = mStmtInsert->ExecuteAsync(mInsertListener, getter_AddRefs(handle)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); +} + +void CookiePersistentStorage::StaleCookies(const nsTArray<Cookie*>& aCookieList, + int64_t aCurrentTimeInUsec) { + // Create an array of parameters to bind to our update statement. Batching + // is OK here since we're updating cookies with no interleaved operations. + nsCOMPtr<mozIStorageBindingParamsArray> paramsArray; + mozIStorageAsyncStatement* stmt = mStmtUpdate; + if (mDBConn) { + stmt->NewBindingParamsArray(getter_AddRefs(paramsArray)); + } + + int32_t count = aCookieList.Length(); + for (int32_t i = 0; i < count; ++i) { + Cookie* cookie = aCookieList.ElementAt(i); + + if (cookie->IsStale()) { + UpdateCookieInList(cookie, aCurrentTimeInUsec, paramsArray); + } + } + // Update the database now if necessary. + if (paramsArray) { + uint32_t length; + paramsArray->GetLength(&length); + if (length) { + DebugOnly<nsresult> rv = stmt->BindParameters(paramsArray); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsCOMPtr<mozIStoragePendingStatement> handle; + rv = stmt->ExecuteAsync(mUpdateListener, getter_AddRefs(handle)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + } + } +} + +void CookiePersistentStorage::UpdateCookieInList( + Cookie* aCookie, int64_t aLastAccessed, + mozIStorageBindingParamsArray* aParamsArray) { + MOZ_ASSERT(aCookie); + + // udpate the lastAccessed timestamp + aCookie->SetLastAccessed(aLastAccessed); + + // if it's a non-session cookie, update it in the db too + if (!aCookie->IsSession() && aParamsArray) { + // Create our params holder. + nsCOMPtr<mozIStorageBindingParams> params; + aParamsArray->NewBindingParams(getter_AddRefs(params)); + + // Bind our parameters. + DebugOnly<nsresult> rv = + params->BindInt64ByName("lastAccessed"_ns, aLastAccessed); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("name"_ns, aCookie->Name()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("host"_ns, aCookie->Host()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = params->BindUTF8StringByName("path"_ns, aCookie->Path()); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsAutoCString suffix; + aCookie->OriginAttributesRef().CreateSuffix(suffix); + rv = params->BindUTF8StringByName("originAttributes"_ns, suffix); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + // Add our bound parameters to the array. + rv = aParamsArray->AddParams(params); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + } +} + +void CookiePersistentStorage::DeleteFromDB( + mozIStorageBindingParamsArray* aParamsArray) { + uint32_t length; + aParamsArray->GetLength(&length); + if (length) { + DebugOnly<nsresult> rv = mStmtDelete->BindParameters(aParamsArray); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + nsCOMPtr<mozIStoragePendingStatement> handle; + rv = mStmtDelete->ExecuteAsync(mRemoveListener, getter_AddRefs(handle)); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + } +} + +void CookiePersistentStorage::Activate() { + MOZ_ASSERT(!mThread, "already have a cookie thread"); + + mStorageService = do_GetService("@mozilla.org/storage/service;1"); + MOZ_ASSERT(mStorageService); + + mTLDService = do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID); + MOZ_ASSERT(mTLDService); + + // Get our cookie file. + nsresult rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, + getter_AddRefs(mCookieFile)); + if (NS_FAILED(rv)) { + // We've already set up our CookieStorages appropriately; nothing more to + // do. + COOKIE_LOGSTRING(LogLevel::Warning, + ("InitCookieStorages(): couldn't get cookie file")); + + mInitializedDBConn = true; + mInitialized = true; + return; + } + + mCookieFile->AppendNative(nsLiteralCString(COOKIES_FILE)); + + NS_ENSURE_SUCCESS_VOID(NS_NewNamedThread("Cookie", getter_AddRefs(mThread))); + + RefPtr<CookiePersistentStorage> self = this; + nsCOMPtr<nsIRunnable> runnable = + NS_NewRunnableFunction("CookiePersistentStorage::Activate", [self] { + MonitorAutoLock lock(self->mMonitor); + + // Attempt to open and read the database. If TryInitDB() returns + // RESULT_RETRY, do so. + OpenDBResult result = self->TryInitDB(false); + if (result == RESULT_RETRY) { + // Database may be corrupt. Synchronously close the connection, clean + // up the default CookieStorage, and try again. + COOKIE_LOGSTRING(LogLevel::Warning, + ("InitCookieStorages(): retrying TryInitDB()")); + self->CleanupCachedStatements(); + self->CleanupDBConnection(); + result = self->TryInitDB(true); + if (result == RESULT_RETRY) { + // We're done. Change the code to failure so we clean up below. + result = RESULT_FAILURE; + } + } + + if (result == RESULT_FAILURE) { + COOKIE_LOGSTRING( + LogLevel::Warning, + ("InitCookieStorages(): TryInitDB() failed, closing connection")); + + // Connection failure is unrecoverable. Clean up our connection. We + // can run fine without persistent storage -- e.g. if there's no + // profile. + self->CleanupCachedStatements(); + self->CleanupDBConnection(); + + // No need to initialize mDBConn + self->mInitializedDBConn = true; + } + + self->mInitialized = true; + + NS_DispatchToMainThread( + NS_NewRunnableFunction("CookiePersistentStorage::InitDBConn", + [self] { self->InitDBConn(); })); + self->mMonitor.Notify(); + }); + + mThread->Dispatch(runnable, NS_DISPATCH_NORMAL); +} + +/* Attempt to open and read the database. If 'aRecreateDB' is true, try to + * move the existing database file out of the way and create a new one. + * + * @returns RESULT_OK if opening or creating the database succeeded; + * RESULT_RETRY if the database cannot be opened, is corrupt, or some + * other failure occurred that might be resolved by recreating the + * database; or RESULT_FAILED if there was an unrecoverable error and + * we must run without a database. + * + * If RESULT_RETRY or RESULT_FAILED is returned, the caller should perform + * cleanup of the default CookieStorage. + */ +CookiePersistentStorage::OpenDBResult CookiePersistentStorage::TryInitDB( + bool aRecreateDB) { + NS_ASSERTION(!mDBConn, "nonnull mDBConn"); + NS_ASSERTION(!mStmtInsert, "nonnull mStmtInsert"); + NS_ASSERTION(!mInsertListener, "nonnull mInsertListener"); + NS_ASSERTION(!mSyncConn, "nonnull mSyncConn"); + NS_ASSERTION(NS_GetCurrentThread() == mThread, "non cookie thread"); + + // Ditch an existing db, if we've been told to (i.e. it's corrupt). We don't + // want to delete it outright, since it may be useful for debugging purposes, + // so we move it out of the way. + nsresult rv; + if (aRecreateDB) { + nsCOMPtr<nsIFile> backupFile; + mCookieFile->Clone(getter_AddRefs(backupFile)); + rv = backupFile->MoveToNative(nullptr, + nsLiteralCString(COOKIES_FILE ".bak")); + NS_ENSURE_SUCCESS(rv, RESULT_FAILURE); + } + + // This block provides scope for the Telemetry AutoTimer + { + Telemetry::AutoTimer<Telemetry::MOZ_SQLITE_COOKIES_OPEN_READAHEAD_MS> + telemetry; + ReadAheadFile(mCookieFile); + + // open a connection to the cookie database, and only cache our connection + // and statements upon success. The connection is opened unshared to + // eliminate cache contention between the main and background threads. + rv = mStorageService->OpenUnsharedDatabase( + mCookieFile, mozIStorageService::CONNECTION_DEFAULT, + getter_AddRefs(mSyncConn)); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + + auto guard = MakeScopeExit([&] { mSyncConn = nullptr; }); + + bool tableExists = false; + mSyncConn->TableExists("moz_cookies"_ns, &tableExists); + if (!tableExists) { + rv = CreateTable(); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + } else { + // table already exists; check the schema version before reading + int32_t dbSchemaVersion; + rv = mSyncConn->GetSchemaVersion(&dbSchemaVersion); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Start a transaction for the whole migration block. + mozStorageTransaction transaction(mSyncConn, true); + + // XXX Handle the error, bug 1696130. + Unused << NS_WARN_IF(NS_FAILED(transaction.Start())); + + switch (dbSchemaVersion) { + // Upgrading. + // Every time you increment the database schema, you need to implement + // the upgrading code from the previous version to the new one. If + // migration fails for any reason, it's a bug -- so we return RESULT_RETRY + // such that the original database will be saved, in the hopes that we + // might one day see it and fix it. + case 1: { + // Add the lastAccessed column to the table. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD lastAccessed INTEGER")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + // Fall through to the next upgrade. + [[fallthrough]]; + + case 2: { + // Add the baseDomain column and index to the table. + rv = mSyncConn->ExecuteSimpleSQL( + "ALTER TABLE moz_cookies ADD baseDomain TEXT"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Compute the baseDomains for the table. This must be done eagerly + // otherwise we won't be able to synchronously read in individual + // domains on demand. + const int64_t SCHEMA2_IDX_ID = 0; + const int64_t SCHEMA2_IDX_HOST = 1; + nsCOMPtr<mozIStorageStatement> select; + rv = mSyncConn->CreateStatement("SELECT id, host FROM moz_cookies"_ns, + getter_AddRefs(select)); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + nsCOMPtr<mozIStorageStatement> update; + rv = mSyncConn->CreateStatement( + nsLiteralCString("UPDATE moz_cookies SET baseDomain = " + ":baseDomain WHERE id = :id"), + getter_AddRefs(update)); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + nsCString baseDomain; + nsCString host; + bool hasResult; + while (true) { + rv = select->ExecuteStep(&hasResult); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + if (!hasResult) { + break; + } + + int64_t id = select->AsInt64(SCHEMA2_IDX_ID); + select->GetUTF8String(SCHEMA2_IDX_HOST, host); + + rv = CookieCommons::GetBaseDomainFromHost(mTLDService, host, + baseDomain); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + mozStorageStatementScoper scoper(update); + + rv = update->BindUTF8StringByName("baseDomain"_ns, baseDomain); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + rv = update->BindInt64ByName("id"_ns, id); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = update->ExecuteStep(&hasResult); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + + // Create an index on baseDomain. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "CREATE INDEX moz_basedomain ON moz_cookies (baseDomain)")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + // Fall through to the next upgrade. + [[fallthrough]]; + + case 3: { + // Add the creationTime column to the table, and create a unique index + // on (name, host, path). Before we do this, we have to purge the table + // of expired cookies such that we know that the (name, host, path) + // index is truly unique -- otherwise we can't create the index. Note + // that we can't just execute a statement to delete all rows where the + // expiry column is in the past -- doing so would rely on the clock + // (both now and when previous cookies were set) being monotonic. + + // Select the whole table, and order by the fields we're interested in. + // This means we can simply do a linear traversal of the results and + // check for duplicates as we go. + const int64_t SCHEMA3_IDX_ID = 0; + const int64_t SCHEMA3_IDX_NAME = 1; + const int64_t SCHEMA3_IDX_HOST = 2; + const int64_t SCHEMA3_IDX_PATH = 3; + nsCOMPtr<mozIStorageStatement> select; + rv = mSyncConn->CreateStatement( + nsLiteralCString( + "SELECT id, name, host, path FROM moz_cookies " + "ORDER BY name ASC, host ASC, path ASC, expiry ASC"), + getter_AddRefs(select)); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + nsCOMPtr<mozIStorageStatement> deleteExpired; + rv = mSyncConn->CreateStatement( + "DELETE FROM moz_cookies WHERE id = :id"_ns, + getter_AddRefs(deleteExpired)); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Read the first row. + bool hasResult; + rv = select->ExecuteStep(&hasResult); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + if (hasResult) { + nsCString name1; + nsCString host1; + nsCString path1; + int64_t id1 = select->AsInt64(SCHEMA3_IDX_ID); + select->GetUTF8String(SCHEMA3_IDX_NAME, name1); + select->GetUTF8String(SCHEMA3_IDX_HOST, host1); + select->GetUTF8String(SCHEMA3_IDX_PATH, path1); + + nsCString name2; + nsCString host2; + nsCString path2; + while (true) { + // Read the second row. + rv = select->ExecuteStep(&hasResult); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + if (!hasResult) { + break; + } + + int64_t id2 = select->AsInt64(SCHEMA3_IDX_ID); + select->GetUTF8String(SCHEMA3_IDX_NAME, name2); + select->GetUTF8String(SCHEMA3_IDX_HOST, host2); + select->GetUTF8String(SCHEMA3_IDX_PATH, path2); + + // If the two rows match in (name, host, path), we know the earlier + // row has an earlier expiry time. Delete it. + if (name1 == name2 && host1 == host2 && path1 == path2) { + mozStorageStatementScoper scoper(deleteExpired); + + rv = deleteExpired->BindInt64ByName("id"_ns, id1); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + rv = deleteExpired->ExecuteStep(&hasResult); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + + // Make the second row the first for the next iteration. + name1 = name2; + host1 = host2; + path1 = path2; + id1 = id2; + } + } + + // Add the creationTime column to the table. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD creationTime INTEGER")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Copy the id of each row into the new creationTime column. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("UPDATE moz_cookies SET creationTime = " + "(SELECT id WHERE id = moz_cookies.id)")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Create a unique index on (name, host, path) to allow fast lookup. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("CREATE UNIQUE INDEX moz_uniqueid " + "ON moz_cookies (name, host, path)")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + // Fall through to the next upgrade. + [[fallthrough]]; + + case 4: { + // We need to add appId/inBrowserElement, plus change a constraint on + // the table (unique entries now include appId/inBrowserElement): + // this requires creating a new table and copying the data to it. We + // then rename the new table to the old name. + // + // Why we made this change: appId/inBrowserElement allow "cookie jars" + // for Firefox OS. We create a separate cookie namespace per {appId, + // inBrowserElement}. When upgrading, we convert existing cookies + // (which imply we're on desktop/mobile) to use {0, false}, as that is + // the only namespace used by a non-Firefox-OS implementation. + + // Rename existing table + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies RENAME TO moz_cookies_old")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop existing index (CreateTable will create new one for new table) + rv = mSyncConn->ExecuteSimpleSQL("DROP INDEX moz_basedomain"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Create new table (with new fields and new unique constraint) + rv = CreateTableForSchemaVersion5(); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Copy data from old table, using appId/inBrowser=0 for existing rows + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "INSERT INTO moz_cookies " + "(baseDomain, appId, inBrowserElement, name, value, host, path, " + "expiry," + " lastAccessed, creationTime, isSecure, isHttpOnly) " + "SELECT baseDomain, 0, 0, name, value, host, path, expiry," + " lastAccessed, creationTime, isSecure, isHttpOnly " + "FROM moz_cookies_old")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop old table + rv = mSyncConn->ExecuteSimpleSQL("DROP TABLE moz_cookies_old"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 5")); + } + // Fall through to the next upgrade. + [[fallthrough]]; + + case 5: { + // Change in the version: Replace the columns |appId| and + // |inBrowserElement| by a single column |originAttributes|. + // + // Why we made this change: FxOS new security model (NSec) encapsulates + // "appId/inIsolatedMozBrowser" in nsIPrincipal::originAttributes to + // make it easier to modify the contents of this structure in the + // future. + // + // We do the migration in several steps: + // 1. Rename the old table. + // 2. Create a new table. + // 3. Copy data from the old table to the new table; convert appId and + // inBrowserElement to originAttributes in the meantime. + + // Rename existing table. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies RENAME TO moz_cookies_old")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop existing index (CreateTable will create new one for new table). + rv = mSyncConn->ExecuteSimpleSQL("DROP INDEX moz_basedomain"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Create new table with new fields and new unique constraint. + rv = CreateTableForSchemaVersion6(); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Copy data from old table without the two deprecated columns appId and + // inBrowserElement. + nsCOMPtr<mozIStorageFunction> convertToOriginAttrs( + new ConvertAppIdToOriginAttrsSQLFunction()); + NS_ENSURE_TRUE(convertToOriginAttrs, RESULT_RETRY); + + constexpr auto convertToOriginAttrsName = + "CONVERT_TO_ORIGIN_ATTRIBUTES"_ns; + + rv = mSyncConn->CreateFunction(convertToOriginAttrsName, 2, + convertToOriginAttrs); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "INSERT INTO moz_cookies " + "(baseDomain, originAttributes, name, value, host, path, expiry," + " lastAccessed, creationTime, isSecure, isHttpOnly) " + "SELECT baseDomain, " + " CONVERT_TO_ORIGIN_ATTRIBUTES(appId, inBrowserElement)," + " name, value, host, path, expiry, lastAccessed, creationTime, " + " isSecure, isHttpOnly " + "FROM moz_cookies_old")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->RemoveFunction(convertToOriginAttrsName); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop old table + rv = mSyncConn->ExecuteSimpleSQL("DROP TABLE moz_cookies_old"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 6")); + } + [[fallthrough]]; + + case 6: { + // We made a mistake in schema version 6. We cannot remove expected + // columns of any version (checked in the default case) from cookie + // database, because doing this would destroy the possibility of + // downgrading database. + // + // This version simply restores appId and inBrowserElement columns in + // order to fix downgrading issue even though these two columns are no + // longer used in the latest schema. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD appId INTEGER DEFAULT 0;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD inBrowserElement INTEGER DEFAULT 0;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Compute and populate the values of appId and inBrwoserElement from + // originAttributes. + nsCOMPtr<mozIStorageFunction> setAppId( + new SetAppIdFromOriginAttributesSQLFunction()); + NS_ENSURE_TRUE(setAppId, RESULT_RETRY); + + constexpr auto setAppIdName = "SET_APP_ID"_ns; + + rv = mSyncConn->CreateFunction(setAppIdName, 1, setAppId); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + nsCOMPtr<mozIStorageFunction> setInBrowser( + new SetInBrowserFromOriginAttributesSQLFunction()); + NS_ENSURE_TRUE(setInBrowser, RESULT_RETRY); + + constexpr auto setInBrowserName = "SET_IN_BROWSER"_ns; + + rv = mSyncConn->CreateFunction(setInBrowserName, 1, setInBrowser); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "UPDATE moz_cookies SET appId = SET_APP_ID(originAttributes), " + "inBrowserElement = SET_IN_BROWSER(originAttributes);")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->RemoveFunction(setAppIdName); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = mSyncConn->RemoveFunction(setInBrowserName); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 7")); + } + [[fallthrough]]; + + case 7: { + // Remove the appId field from moz_cookies. + // + // Unfortunately sqlite doesn't support dropping columns using ALTER + // TABLE, so we need to go through the procedure documented in + // https://www.sqlite.org/lang_altertable.html. + + // Drop existing index + rv = mSyncConn->ExecuteSimpleSQL("DROP INDEX moz_basedomain"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Create a new_moz_cookies table without the appId field. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("CREATE TABLE new_moz_cookies(" + "id INTEGER PRIMARY KEY, " + "baseDomain TEXT, " + "originAttributes TEXT NOT NULL DEFAULT '', " + "name TEXT, " + "value TEXT, " + "host TEXT, " + "path TEXT, " + "expiry INTEGER, " + "lastAccessed INTEGER, " + "creationTime INTEGER, " + "isSecure INTEGER, " + "isHttpOnly INTEGER, " + "inBrowserElement INTEGER DEFAULT 0, " + "CONSTRAINT moz_uniqueid UNIQUE (name, host, " + "path, originAttributes)" + ")")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Move the data over. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("INSERT INTO new_moz_cookies (" + "id, " + "baseDomain, " + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "inBrowserElement " + ") SELECT " + "id, " + "baseDomain, " + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "inBrowserElement " + "FROM moz_cookies;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop the old table + rv = mSyncConn->ExecuteSimpleSQL("DROP TABLE moz_cookies;"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Rename new_moz_cookies to moz_cookies. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE new_moz_cookies RENAME TO moz_cookies;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Recreate our index. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("CREATE INDEX moz_basedomain ON moz_cookies " + "(baseDomain, originAttributes)")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 8")); + } + [[fallthrough]]; + + case 8: { + // Add the sameSite column to the table. + rv = mSyncConn->ExecuteSimpleSQL( + "ALTER TABLE moz_cookies ADD sameSite INTEGER"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 9")); + } + [[fallthrough]]; + + case 9: { + // Add the rawSameSite column to the table. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD rawSameSite INTEGER")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Copy the current sameSite value into rawSameSite. + rv = mSyncConn->ExecuteSimpleSQL( + "UPDATE moz_cookies SET rawSameSite = sameSite"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 10")); + } + [[fallthrough]]; + + case 10: { + // Rename existing table + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies RENAME TO moz_cookies_old")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Create a new moz_cookies table without the baseDomain field. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("CREATE TABLE moz_cookies(" + "id INTEGER PRIMARY KEY, " + "originAttributes TEXT NOT NULL DEFAULT '', " + "name TEXT, " + "value TEXT, " + "host TEXT, " + "path TEXT, " + "expiry INTEGER, " + "lastAccessed INTEGER, " + "creationTime INTEGER, " + "isSecure INTEGER, " + "isHttpOnly INTEGER, " + "inBrowserElement INTEGER DEFAULT 0, " + "sameSite INTEGER DEFAULT 0, " + "rawSameSite INTEGER DEFAULT 0, " + "CONSTRAINT moz_uniqueid UNIQUE (name, host, " + "path, originAttributes)" + ")")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Move the data over. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("INSERT INTO moz_cookies (" + "id, " + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "inBrowserElement, " + "sameSite, " + "rawSameSite " + ") SELECT " + "id, " + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "inBrowserElement, " + "sameSite, " + "rawSameSite " + "FROM moz_cookies_old " + "WHERE baseDomain NOTNULL;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop the old table + rv = mSyncConn->ExecuteSimpleSQL("DROP TABLE moz_cookies_old;"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + // Drop the moz_basedomain index from the database (if it hasn't been + // removed already by removing the table). + rv = mSyncConn->ExecuteSimpleSQL( + "DROP INDEX IF EXISTS moz_basedomain;"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 11")); + } + [[fallthrough]]; + + case 11: { + // Add the schemeMap column to the table. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "ALTER TABLE moz_cookies ADD schemeMap INTEGER DEFAULT 0;")); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Upgraded database to schema version 12")); + + // No more upgrades. Update the schema version. + rv = mSyncConn->SetSchemaVersion(COOKIES_SCHEMA_VERSION); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + [[fallthrough]]; + + case COOKIES_SCHEMA_VERSION: + break; + + case 0: { + NS_WARNING("couldn't get schema version!"); + + // the table may be usable; someone might've just clobbered the schema + // version. we can treat this case like a downgrade using the codepath + // below, by verifying the columns we care about are all there. for now, + // re-set the schema version in the db, in case the checks succeed (if + // they don't, we're dropping the table anyway). + rv = mSyncConn->SetSchemaVersion(COOKIES_SCHEMA_VERSION); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } + // fall through to downgrade check + [[fallthrough]]; + + // downgrading. + // if columns have been added to the table, we can still use the ones we + // understand safely. if columns have been deleted or altered, just + // blow away the table and start from scratch! if you change the way + // a column is interpreted, make sure you also change its name so this + // check will catch it. + default: { + // check if all the expected columns exist + nsCOMPtr<mozIStorageStatement> stmt; + rv = mSyncConn->CreateStatement(nsLiteralCString("SELECT " + "id, " + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "sameSite, " + "rawSameSite, " + "schemeMap " + "FROM moz_cookies"), + getter_AddRefs(stmt)); + if (NS_SUCCEEDED(rv)) { + break; + } + + // our columns aren't there - drop the table! + rv = mSyncConn->ExecuteSimpleSQL("DROP TABLE moz_cookies"_ns); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + rv = CreateTable(); + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + } break; + } + } + + // if we deleted a corrupt db, don't attempt to import - return now + if (aRecreateDB) { + return RESULT_OK; + } + + // check whether to import or just read in the db + if (tableExists) { + return Read(); + } + + return RESULT_OK; +} + +void CookiePersistentStorage::RebuildCorruptDB() { + NS_ASSERTION(!mDBConn, "shouldn't have an open db connection"); + NS_ASSERTION(mCorruptFlag == CookiePersistentStorage::CLOSING_FOR_REBUILD, + "should be in CLOSING_FOR_REBUILD state"); + + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + + mCorruptFlag = CookiePersistentStorage::REBUILDING; + + COOKIE_LOGSTRING(LogLevel::Debug, + ("RebuildCorruptDB(): creating new database")); + + RefPtr<CookiePersistentStorage> self = this; + nsCOMPtr<nsIRunnable> runnable = + NS_NewRunnableFunction("RebuildCorruptDB.TryInitDB", [self] { + // The database has been closed, and we're ready to rebuild. Open a + // connection. + OpenDBResult result = self->TryInitDB(true); + + nsCOMPtr<nsIRunnable> innerRunnable = NS_NewRunnableFunction( + "RebuildCorruptDB.TryInitDBComplete", [self, result] { + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + if (result != RESULT_OK) { + // We're done. Reset our DB connection and statements, and + // notify of closure. + COOKIE_LOGSTRING( + LogLevel::Warning, + ("RebuildCorruptDB(): TryInitDB() failed with result %u", + result)); + self->CleanupCachedStatements(); + self->CleanupDBConnection(); + self->mCorruptFlag = CookiePersistentStorage::OK; + if (os) { + os->NotifyObservers(nullptr, "cookie-db-closed", nullptr); + } + return; + } + + // Notify observers that we're beginning the rebuild. + if (os) { + os->NotifyObservers(nullptr, "cookie-db-rebuilding", nullptr); + } + + self->InitDBConnInternal(); + + // Enumerate the hash, and add cookies to the params array. + mozIStorageAsyncStatement* stmt = self->mStmtInsert; + nsCOMPtr<mozIStorageBindingParamsArray> paramsArray; + stmt->NewBindingParamsArray(getter_AddRefs(paramsArray)); + for (auto iter = self->mHostTable.Iter(); !iter.Done(); + iter.Next()) { + CookieEntry* entry = iter.Get(); + + const CookieEntry::ArrayType& cookies = entry->GetCookies(); + for (CookieEntry::IndexType i = 0; i < cookies.Length(); ++i) { + Cookie* cookie = cookies[i]; + + if (!cookie->IsSession()) { + BindCookieParameters(paramsArray, CookieKey(entry), cookie); + } + } + } + + // Make sure we've got something to write. If we don't, we're + // done. + uint32_t length; + paramsArray->GetLength(&length); + if (length == 0) { + COOKIE_LOGSTRING( + LogLevel::Debug, + ("RebuildCorruptDB(): nothing to write, rebuild complete")); + self->mCorruptFlag = CookiePersistentStorage::OK; + return; + } + + self->MaybeStoreCookiesToDB(paramsArray); + }); + NS_DispatchToMainThread(innerRunnable); + }); + mThread->Dispatch(runnable, NS_DISPATCH_NORMAL); +} + +void CookiePersistentStorage::HandleDBClosed() { + COOKIE_LOGSTRING(LogLevel::Debug, + ("HandleDBClosed(): CookieStorage %p closed", this)); + + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + + switch (mCorruptFlag) { + case CookiePersistentStorage::OK: { + // Database is healthy. Notify of closure. + if (os) { + os->NotifyObservers(nullptr, "cookie-db-closed", nullptr); + } + break; + } + case CookiePersistentStorage::CLOSING_FOR_REBUILD: { + // Our close finished. Start the rebuild, and notify of db closure later. + RebuildCorruptDB(); + break; + } + case CookiePersistentStorage::REBUILDING: { + // We encountered an error during rebuild, closed the database, and now + // here we are. We already have a 'cookies.sqlite.bak' from the original + // dead database; we don't want to overwrite it, so let's move this one to + // 'cookies.sqlite.bak-rebuild'. + nsCOMPtr<nsIFile> backupFile; + mCookieFile->Clone(getter_AddRefs(backupFile)); + nsresult rv = backupFile->MoveToNative( + nullptr, nsLiteralCString(COOKIES_FILE ".bak-rebuild")); + + COOKIE_LOGSTRING(LogLevel::Warning, + ("HandleDBClosed(): CookieStorage %p encountered error " + "rebuilding db; move to " + "'cookies.sqlite.bak-rebuild' gave rv 0x%" PRIx32, + this, static_cast<uint32_t>(rv))); + if (os) { + os->NotifyObservers(nullptr, "cookie-db-closed", nullptr); + } + break; + } + } +} + +CookiePersistentStorage::OpenDBResult CookiePersistentStorage::Read() { + MOZ_ASSERT(NS_GetCurrentThread() == mThread); + + // Read in the data synchronously. + // see IDX_NAME, etc. for parameter indexes + nsCOMPtr<mozIStorageStatement> stmt; + nsresult rv = mSyncConn->CreateStatement(nsLiteralCString("SELECT " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "originAttributes, " + "sameSite, " + "rawSameSite, " + "schemeMap " + "FROM moz_cookies"), + getter_AddRefs(stmt)); + + NS_ENSURE_SUCCESS(rv, RESULT_RETRY); + + if (NS_WARN_IF(!mReadArray.IsEmpty())) { + mReadArray.Clear(); + } + mReadArray.SetCapacity(kMaxNumberOfCookies); + + nsCString baseDomain; + nsCString name; + nsCString value; + nsCString host; + nsCString path; + bool hasResult; + while (true) { + rv = stmt->ExecuteStep(&hasResult); + if (NS_WARN_IF(NS_FAILED(rv))) { + mReadArray.Clear(); + return RESULT_RETRY; + } + + if (!hasResult) { + break; + } + + stmt->GetUTF8String(IDX_HOST, host); + + rv = CookieCommons::GetBaseDomainFromHost(mTLDService, host, baseDomain); + if (NS_FAILED(rv)) { + COOKIE_LOGSTRING(LogLevel::Debug, + ("Read(): Ignoring invalid host '%s'", host.get())); + continue; + } + + nsAutoCString suffix; + OriginAttributes attrs; + stmt->GetUTF8String(IDX_ORIGIN_ATTRIBUTES, suffix); + // If PopulateFromSuffix failed we just ignore the OA attributes + // that we don't support + Unused << attrs.PopulateFromSuffix(suffix); + + CookieKey key(baseDomain, attrs); + CookieDomainTuple* tuple = mReadArray.AppendElement(); + tuple->key = std::move(key); + tuple->originAttributes = attrs; + tuple->cookie = GetCookieFromRow(stmt); + } + + COOKIE_LOGSTRING(LogLevel::Debug, + ("Read(): %zu cookies read", mReadArray.Length())); + + return RESULT_OK; +} + +// Extract data from a single result row and create an Cookie. +UniquePtr<CookieStruct> CookiePersistentStorage::GetCookieFromRow( + mozIStorageStatement* aRow) { + nsCString name; + nsCString value; + nsCString host; + nsCString path; + DebugOnly<nsresult> rv = aRow->GetUTF8String(IDX_NAME, name); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + rv = aRow->GetUTF8String(IDX_VALUE, value); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + rv = aRow->GetUTF8String(IDX_HOST, host); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + rv = aRow->GetUTF8String(IDX_PATH, path); + MOZ_ASSERT(NS_SUCCEEDED(rv)); + + int64_t expiry = aRow->AsInt64(IDX_EXPIRY); + int64_t lastAccessed = aRow->AsInt64(IDX_LAST_ACCESSED); + int64_t creationTime = aRow->AsInt64(IDX_CREATION_TIME); + bool isSecure = 0 != aRow->AsInt32(IDX_SECURE); + bool isHttpOnly = 0 != aRow->AsInt32(IDX_HTTPONLY); + int32_t sameSite = aRow->AsInt32(IDX_SAME_SITE); + int32_t rawSameSite = aRow->AsInt32(IDX_RAW_SAME_SITE); + int32_t schemeMap = aRow->AsInt32(IDX_SCHEME_MAP); + + // Create a new constCookie and assign the data. + return MakeUnique<CookieStruct>( + name, value, host, path, expiry, lastAccessed, creationTime, isHttpOnly, + false, isSecure, sameSite, rawSameSite, + static_cast<nsICookie::schemeType>(schemeMap)); +} + +void CookiePersistentStorage::EnsureInitialized() { + MOZ_ASSERT(NS_IsMainThread()); + + bool isAccumulated = false; + + if (!mInitialized) { + TimeStamp startBlockTime = TimeStamp::Now(); + MonitorAutoLock lock(mMonitor); + + while (!mInitialized) { + mMonitor.Wait(); + } + + Telemetry::AccumulateTimeDelta( + Telemetry::MOZ_SQLITE_COOKIES_BLOCK_MAIN_THREAD_MS_V2, startBlockTime); + Telemetry::Accumulate( + Telemetry::MOZ_SQLITE_COOKIES_TIME_TO_BLOCK_MAIN_THREAD_MS, 0); + isAccumulated = true; + } else if (!mEndInitDBConn.IsNull()) { + // We didn't block main thread, and here comes the first cookie request. + // Collect how close we're going to block main thread. + Telemetry::Accumulate( + Telemetry::MOZ_SQLITE_COOKIES_TIME_TO_BLOCK_MAIN_THREAD_MS, + (TimeStamp::Now() - mEndInitDBConn).ToMilliseconds()); + // Nullify the timestamp so wo don't accumulate this telemetry probe again. + mEndInitDBConn = TimeStamp(); + isAccumulated = true; + } else if (!mInitializedDBConn) { + // A request comes while we finished cookie thread task and InitDBConn is + // on the way from cookie thread to main thread. We're very close to block + // main thread. + Telemetry::Accumulate( + Telemetry::MOZ_SQLITE_COOKIES_TIME_TO_BLOCK_MAIN_THREAD_MS, 0); + isAccumulated = true; + } + + if (!mInitializedDBConn) { + InitDBConn(); + if (isAccumulated) { + // Nullify the timestamp so wo don't accumulate this telemetry probe + // again. + mEndInitDBConn = TimeStamp(); + } + } +} + +void CookiePersistentStorage::InitDBConn() { + MOZ_ASSERT(NS_IsMainThread()); + + // We should skip InitDBConn if we close profile during initializing + // CookieStorages and then InitDBConn is called after we close the + // CookieStorages. + if (!mInitialized || mInitializedDBConn) { + return; + } + + for (uint32_t i = 0; i < mReadArray.Length(); ++i) { + CookieDomainTuple& tuple = mReadArray[i]; + MOZ_ASSERT(!tuple.cookie->isSession()); + + RefPtr<Cookie> cookie = + Cookie::Create(*tuple.cookie, tuple.originAttributes); + AddCookieToList(tuple.key.mBaseDomain, tuple.key.mOriginAttributes, cookie); + } + + if (NS_FAILED(InitDBConnInternal())) { + COOKIE_LOGSTRING(LogLevel::Warning, + ("InitDBConn(): retrying InitDBConnInternal()")); + CleanupCachedStatements(); + CleanupDBConnection(); + if (NS_FAILED(InitDBConnInternal())) { + COOKIE_LOGSTRING( + LogLevel::Warning, + ("InitDBConn(): InitDBConnInternal() failed, closing connection")); + + // Game over, clean the connections. + CleanupCachedStatements(); + CleanupDBConnection(); + } + } + mInitializedDBConn = true; + + COOKIE_LOGSTRING(LogLevel::Debug, + ("InitDBConn(): mInitializedDBConn = true")); + mEndInitDBConn = TimeStamp::Now(); + + nsCOMPtr<nsIObserverService> os = services::GetObserverService(); + if (os) { + os->NotifyObservers(nullptr, "cookie-db-read", nullptr); + mReadArray.Clear(); + } +} + +nsresult CookiePersistentStorage::InitDBConnInternal() { + MOZ_ASSERT(NS_IsMainThread()); + + nsresult rv = mStorageService->OpenUnsharedDatabase( + mCookieFile, mozIStorageService::CONNECTION_DEFAULT, + getter_AddRefs(mDBConn)); + NS_ENSURE_SUCCESS(rv, rv); + + // Set up our listeners. + mInsertListener = new InsertCookieDBListener(this); + mUpdateListener = new UpdateCookieDBListener(this); + mRemoveListener = new RemoveCookieDBListener(this); + mCloseListener = new CloseCookieDBListener(this); + + // Grow cookie db in 512KB increments + mDBConn->SetGrowthIncrement(512 * 1024, ""_ns); + + // make operations on the table asynchronous, for performance + mDBConn->ExecuteSimpleSQL("PRAGMA synchronous = OFF"_ns); + + // Use write-ahead-logging for performance. We cap the autocheckpoint limit at + // 16 pages (around 500KB). + mDBConn->ExecuteSimpleSQL(nsLiteralCString(MOZ_STORAGE_UNIQUIFY_QUERY_STR + "PRAGMA journal_mode = WAL")); + mDBConn->ExecuteSimpleSQL("PRAGMA wal_autocheckpoint = 16"_ns); + + // cache frequently used statements (for insertion, deletion, and updating) + rv = + mDBConn->CreateAsyncStatement(nsLiteralCString("INSERT INTO moz_cookies (" + "originAttributes, " + "name, " + "value, " + "host, " + "path, " + "expiry, " + "lastAccessed, " + "creationTime, " + "isSecure, " + "isHttpOnly, " + "sameSite, " + "rawSameSite, " + "schemeMap " + ") VALUES (" + ":originAttributes, " + ":name, " + ":value, " + ":host, " + ":path, " + ":expiry, " + ":lastAccessed, " + ":creationTime, " + ":isSecure, " + ":isHttpOnly, " + ":sameSite, " + ":rawSameSite, " + ":schemeMap " + ")"), + getter_AddRefs(mStmtInsert)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = mDBConn->CreateAsyncStatement( + nsLiteralCString("DELETE FROM moz_cookies " + "WHERE name = :name AND host = :host AND path = :path " + "AND originAttributes = :originAttributes"), + getter_AddRefs(mStmtDelete)); + NS_ENSURE_SUCCESS(rv, rv); + + rv = mDBConn->CreateAsyncStatement( + nsLiteralCString("UPDATE moz_cookies SET lastAccessed = :lastAccessed " + "WHERE name = :name AND host = :host AND path = :path " + "AND originAttributes = :originAttributes"), + getter_AddRefs(mStmtUpdate)); + return rv; +} + +// Sets the schema version and creates the moz_cookies table. +nsresult CookiePersistentStorage::CreateTableWorker(const char* aName) { + // Create the table. + // We default originAttributes to empty string: this is so if users revert to + // an older Firefox version that doesn't know about this field, any cookies + // set will still work once they upgrade back. + nsAutoCString command("CREATE TABLE "); + command.Append(aName); + command.AppendLiteral( + " (" + "id INTEGER PRIMARY KEY, " + "originAttributes TEXT NOT NULL DEFAULT '', " + "name TEXT, " + "value TEXT, " + "host TEXT, " + "path TEXT, " + "expiry INTEGER, " + "lastAccessed INTEGER, " + "creationTime INTEGER, " + "isSecure INTEGER, " + "isHttpOnly INTEGER, " + "inBrowserElement INTEGER DEFAULT 0, " + "sameSite INTEGER DEFAULT 0, " + "rawSameSite INTEGER DEFAULT 0, " + "schemeMap INTEGER DEFAULT 0, " + "CONSTRAINT moz_uniqueid UNIQUE (name, host, path, originAttributes)" + ")"); + return mSyncConn->ExecuteSimpleSQL(command); +} + +// Sets the schema version and creates the moz_cookies table. +nsresult CookiePersistentStorage::CreateTable() { + // Set the schema version, before creating the table. + nsresult rv = mSyncConn->SetSchemaVersion(COOKIES_SCHEMA_VERSION); + if (NS_FAILED(rv)) { + return rv; + } + + rv = CreateTableWorker("moz_cookies"); + if (NS_FAILED(rv)) { + return rv; + } + + return NS_OK; +} + +// Sets the schema version and creates the moz_cookies table. +nsresult CookiePersistentStorage::CreateTableForSchemaVersion6() { + // Set the schema version, before creating the table. + nsresult rv = mSyncConn->SetSchemaVersion(6); + if (NS_FAILED(rv)) { + return rv; + } + + // Create the table. + // We default originAttributes to empty string: this is so if users revert to + // an older Firefox version that doesn't know about this field, any cookies + // set will still work once they upgrade back. + rv = mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "CREATE TABLE moz_cookies (" + "id INTEGER PRIMARY KEY, " + "baseDomain TEXT, " + "originAttributes TEXT NOT NULL DEFAULT '', " + "name TEXT, " + "value TEXT, " + "host TEXT, " + "path TEXT, " + "expiry INTEGER, " + "lastAccessed INTEGER, " + "creationTime INTEGER, " + "isSecure INTEGER, " + "isHttpOnly INTEGER, " + "CONSTRAINT moz_uniqueid UNIQUE (name, host, path, originAttributes)" + ")")); + if (NS_FAILED(rv)) { + return rv; + } + + // Create an index on baseDomain. + return mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "CREATE INDEX moz_basedomain ON moz_cookies (baseDomain, " + "originAttributes)")); +} + +// Sets the schema version and creates the moz_cookies table. +nsresult CookiePersistentStorage::CreateTableForSchemaVersion5() { + // Set the schema version, before creating the table. + nsresult rv = mSyncConn->SetSchemaVersion(5); + if (NS_FAILED(rv)) { + return rv; + } + + // Create the table. We default appId/inBrowserElement to 0: this is so if + // users revert to an older Firefox version that doesn't know about these + // fields, any cookies set will still work once they upgrade back. + rv = mSyncConn->ExecuteSimpleSQL( + nsLiteralCString("CREATE TABLE moz_cookies (" + "id INTEGER PRIMARY KEY, " + "baseDomain TEXT, " + "appId INTEGER DEFAULT 0, " + "inBrowserElement INTEGER DEFAULT 0, " + "name TEXT, " + "value TEXT, " + "host TEXT, " + "path TEXT, " + "expiry INTEGER, " + "lastAccessed INTEGER, " + "creationTime INTEGER, " + "isSecure INTEGER, " + "isHttpOnly INTEGER, " + "CONSTRAINT moz_uniqueid UNIQUE (name, host, path, " + "appId, inBrowserElement)" + ")")); + if (NS_FAILED(rv)) { + return rv; + } + + // Create an index on baseDomain. + return mSyncConn->ExecuteSimpleSQL(nsLiteralCString( + "CREATE INDEX moz_basedomain ON moz_cookies (baseDomain, " + "appId, " + "inBrowserElement)")); +} + +nsresult CookiePersistentStorage::RunInTransaction( + nsICookieTransactionCallback* aCallback) { + if (NS_WARN_IF(!mDBConn)) { + return NS_ERROR_NOT_AVAILABLE; + } + + mozStorageTransaction transaction(mDBConn, true); + + // XXX Handle the error, bug 1696130. + Unused << NS_WARN_IF(NS_FAILED(transaction.Start())); + + if (NS_FAILED(aCallback->Callback())) { + Unused << transaction.Rollback(); + return NS_ERROR_FAILURE; + } + + return NS_OK; +} + +// purges expired and old cookies in a batch operation. +already_AddRefed<nsIArray> CookiePersistentStorage::PurgeCookies( + int64_t aCurrentTimeInUsec, uint16_t aMaxNumberOfCookies, + int64_t aCookiePurgeAge) { + // Create a params array to batch the removals. This is OK here because + // all the removals are in order, and there are no interleaved additions. + nsCOMPtr<mozIStorageBindingParamsArray> paramsArray; + if (mDBConn) { + mStmtDelete->NewBindingParamsArray(getter_AddRefs(paramsArray)); + } + + RefPtr<CookiePersistentStorage> self = this; + + return PurgeCookiesWithCallbacks( + aCurrentTimeInUsec, aMaxNumberOfCookies, aCookiePurgeAge, + [paramsArray, self](const CookieListIter& aIter) { + self->PrepareCookieRemoval(aIter, paramsArray); + self->RemoveCookieFromListInternal(aIter); + }, + [paramsArray, self]() { + if (paramsArray) { + self->DeleteFromDB(paramsArray); + } + }); +} + +} // namespace net +} // namespace mozilla |