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/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "FirebaseMessaging/Sources/FIRMessagingSyncMessageManager.h"
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#import "FirebaseMessaging/Sources/FIRMessagingConstants.h"
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#import "FirebaseMessaging/Sources/FIRMessagingDefines.h"
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#import "FirebaseMessaging/Sources/FIRMessagingLogger.h"
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#import "FirebaseMessaging/Sources/FIRMessagingPersistentSyncMessage.h"
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#import "FirebaseMessaging/Sources/FIRMessagingRmqManager.h"
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#import "FirebaseMessaging/Sources/FIRMessagingUtilities.h"
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static const int64_t kDefaultSyncMessageTTL = 4 * 7 * 24 * 60 * 60; // 4 weeks
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// 4 MB of free space is required to persist Sync messages
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static const uint64_t kMinFreeDiskSpaceInMB = 1;
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@interface FIRMessagingSyncMessageManager ()
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@property(nonatomic, readwrite, strong) FIRMessagingRmqManager *rmqManager;
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@end
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@implementation FIRMessagingSyncMessageManager
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- (instancetype)init {
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FIRMessagingInvalidateInitializer();
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}
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- (instancetype)initWithRmqManager:(FIRMessagingRmqManager *)rmqManager {
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self = [super init];
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if (self) {
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_rmqManager = rmqManager;
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}
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return self;
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}
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- (void)removeExpiredSyncMessages {
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[self.rmqManager deleteExpiredOrFinishedSyncMessages];
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}
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- (BOOL)didReceiveAPNSSyncMessage:(NSDictionary *)message {
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NSString *rmqID = message[kFIRMessagingMessageIDKey];
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if (![rmqID length]) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager002,
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@"Invalid nil rmqID for sync message.");
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return NO;
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}
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FIRMessagingPersistentSyncMessage *persistentMessage =
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[self.rmqManager querySyncMessageWithRmqID:rmqID];
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if (!persistentMessage) {
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// Do not persist the new message if we don't have enough disk space
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uint64_t freeDiskSpace = FIRMessagingGetFreeDiskSpaceInMB();
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if (freeDiskSpace < kMinFreeDiskSpaceInMB) {
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return NO;
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}
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int64_t expirationTime = [[self class] expirationTimeForSyncMessage:message];
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[self.rmqManager saveSyncMessageWithRmqID:rmqID expirationTime:expirationTime];
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return NO;
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}
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if (!persistentMessage.apnsReceived) {
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persistentMessage.apnsReceived = YES;
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[self.rmqManager updateSyncMessageViaAPNSWithRmqID:rmqID];
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}
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// Already received this message either via MCS or APNS.
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return YES;
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}
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+ (int64_t)expirationTimeForSyncMessage:(NSDictionary *)message {
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int64_t ttl = kDefaultSyncMessageTTL;
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if (message[kFIRMessagingMessageSyncMessageTTLKey]) {
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ttl = [message[kFIRMessagingMessageSyncMessageTTLKey] longLongValue];
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}
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int64_t currentTime = FIRMessagingCurrentTimestampInSeconds();
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return currentTime + ttl;
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}
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@end
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