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147 lines
5.4 KiB
147 lines
5.4 KiB
/*
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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 "FIRMessagingSyncMessageManager.h"
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#import "FIRMessagingConstants.h"
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#import "FIRMessagingDefines.h"
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#import "FIRMessagingLogger.h"
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#import "FIRMessagingPersistentSyncMessage.h"
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#import "FIRMessagingRmqManager.h"
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#import "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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_FIRMessagingDevAssert(rmqManager, @"Invalid nil rmq manager while initalizing sync message manager");
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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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NSError *error;
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int deleteCount = [self.rmqManager deleteExpiredOrFinishedSyncMessages:&error];
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if (error) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager000,
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@"Error while deleting expired sync messages %@", error);
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} else if (deleteCount > 0) {
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FIRMessagingLoggerDebug(kFIRMessagingMessageCodeSyncMessageManager001,
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@"Successfully deleted %d sync messages from store", deleteCount);
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}
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}
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- (BOOL)didReceiveAPNSSyncMessage:(NSDictionary *)message {
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return [self didReceiveSyncMessage:message viaAPNS:YES viaMCS:NO];
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}
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- (BOOL)didReceiveMCSSyncMessage:(NSDictionary *)message {
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return [self didReceiveSyncMessage:message viaAPNS:NO viaMCS:YES];
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}
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- (BOOL)didReceiveSyncMessage:(NSDictionary *)message
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viaAPNS:(BOOL)viaAPNS
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viaMCS:(BOOL)viaMCS {
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NSString *rmqID = message[kFIRMessagingMessageIDKey];
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_FIRMessagingDevAssert([rmqID length], @"Invalid nil rmqID for message");
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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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NSError *error;
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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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if (![self.rmqManager saveSyncMessageWithRmqID:rmqID
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expirationTime:expirationTime
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apnsReceived:viaAPNS
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mcsReceived:viaMCS
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error:&error]) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager003,
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@"Failed to save sync message with rmqID %@", rmqID);
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} else {
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FIRMessagingLoggerInfo(kFIRMessagingMessageCodeSyncMessageManager004,
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@"Added sync message to cache: %@", rmqID);
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}
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return NO;
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}
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if (viaAPNS && !persistentMessage.apnsReceived) {
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persistentMessage.apnsReceived = YES;
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if (![self.rmqManager updateSyncMessageViaAPNSWithRmqID:rmqID error:&error]) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager005,
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@"Failed to update APNS state for sync message %@", rmqID);
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}
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} else if (viaMCS && !persistentMessage.mcsReceived) {
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persistentMessage.mcsReceived = YES;
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if (![self.rmqManager updateSyncMessageViaMCSWithRmqID:rmqID error:&error]) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager006,
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@"Failed to update MCS state for sync message %@", rmqID);
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}
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}
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// Received message via both ways we can safely delete it.
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if (persistentMessage.apnsReceived && persistentMessage.mcsReceived) {
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if (![self.rmqManager deleteSyncMessageWithRmqID:rmqID]) {
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FIRMessagingLoggerError(kFIRMessagingMessageCodeSyncMessageManager007,
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@"Failed to delete sync message %@", rmqID);
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} else {
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FIRMessagingLoggerInfo(kFIRMessagingMessageCodeSyncMessageManager008,
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@"Successfully deleted sync message from cache %@", rmqID);
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}
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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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