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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "FIRMessagingReceiver.h"
#import <UIKit/UIKit.h>
#import "FIRMessaging.h"
#import "FIRMessaging_Private.h"
#import "FIRMessagingLogger.h"
static NSString *const kUpstreamMessageIDUserInfoKey = @"messageID";
static NSString *const kUpstreamErrorUserInfoKey = @"error";
// Copied from Apple's header in case it is missing in some cases.
#ifndef NSFoundationVersionNumber_iOS_9_x_Max
#define NSFoundationVersionNumber_iOS_9_x_Max 1299
#endif
static int downstreamMessageID = 0;
@implementation FIRMessagingReceiver
#pragma mark - FIRMessagingDataMessageManager protocol
- (void)didReceiveMessage:(NSDictionary *)message withIdentifier:(nullable NSString *)messageID {
if (![messageID length]) {
messageID = [[self class] nextMessageID];
}
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_9_x_Max) {
// Use delegate method for iOS 10
[self scheduleIos10NotificationForMessage:message withIdentifier:messageID];
} else {
// Post notification directly to AppDelegate handlers. This is valid pre-iOS 10.
[self scheduleNotificationForMessage:message];
}
}
- (void)willSendDataMessageWithID:(NSString *)messageID error:(NSError *)error {
NSNotification *notification;
if (error) {
NSDictionary *userInfo = @{
kUpstreamMessageIDUserInfoKey : [messageID copy],
kUpstreamErrorUserInfoKey : error
};
notification = [NSNotification notificationWithName:FIRMessagingSendErrorNotification
object:nil
userInfo:userInfo];
[[NSNotificationQueue defaultQueue] enqueueNotification:notification postingStyle:NSPostASAP];
FIRMessagingLoggerDebug(kFIRMessagingMessageCodeReceiver000,
@"Fail to send upstream message: %@ error: %@", messageID, error);
} else {
FIRMessagingLoggerDebug(kFIRMessagingMessageCodeReceiver001, @"Will send upstream message: %@",
messageID);
}
}
- (void)didSendDataMessageWithID:(NSString *)messageID {
// invoke the callbacks asynchronously
FIRMessagingLoggerDebug(kFIRMessagingMessageCodeReceiver002, @"Did send upstream message: %@",
messageID);
NSNotification * notification =
[NSNotification notificationWithName:FIRMessagingSendSuccessNotification
object:nil
userInfo:@{ kUpstreamMessageIDUserInfoKey : [messageID copy] }];
[[NSNotificationQueue defaultQueue] enqueueNotification:notification postingStyle:NSPostASAP];
}
- (void)didDeleteMessagesOnServer {
FIRMessagingLoggerDebug(kFIRMessagingMessageCodeReceiver003,
@"Will send deleted messages notification");
NSNotification * notification =
[NSNotification notificationWithName:FIRMessagingMessagesDeletedNotification
object:nil];
[[NSNotificationQueue defaultQueue] enqueueNotification:notification postingStyle:NSPostASAP];
}
#pragma mark - Private Helpers
// As the new UserNotifications framework in iOS 10 doesn't support constructor/mutation for
// UNNotification object, FCM can't inject the message to the app with UserNotifications framework.
// Define our own protocol, which means app developers need to implement two interfaces to receive
// display notifications and data messages respectively for devices running iOS 10 or above. Devices
// running iOS 9 or below are not affected.
- (void)scheduleIos10NotificationForMessage:(NSDictionary *)message
withIdentifier:(NSString *)messageID {
FIRMessagingRemoteMessage *wrappedMessage = [[FIRMessagingRemoteMessage alloc] init];
// TODO: wrap title, body, badge and other fields
wrappedMessage.appData = [message copy];
[self.delegate receiver:self receivedRemoteMessage:wrappedMessage];
}
- (void)scheduleNotificationForMessage:(NSDictionary *)message {
SEL newNotificationSelector =
@selector(application:didReceiveRemoteNotification:fetchCompletionHandler:);
SEL oldNotificationSelector = @selector(application:didReceiveRemoteNotification:);
dispatch_async(dispatch_get_main_queue(), ^{
id<UIApplicationDelegate> appDelegate = [[UIApplication sharedApplication] delegate];
if ([appDelegate respondsToSelector:newNotificationSelector]) {
// Try the new remote notification callback
[appDelegate application:[UIApplication sharedApplication]
didReceiveRemoteNotification:message
fetchCompletionHandler:^(UIBackgroundFetchResult result) {}];
} else if ([appDelegate respondsToSelector:oldNotificationSelector]) {
// Try the old remote notification callback
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[appDelegate application:
[UIApplication sharedApplication] didReceiveRemoteNotification:message];
#pragma clang diagnostic pop
} else {
FIRMessagingLoggerError(kFIRMessagingMessageCodeReceiver005,
@"None of the remote notification callbacks implemented by "
@"UIApplicationDelegate");
}
});
}
+ (NSString *)nextMessageID {
@synchronized (self) {
++downstreamMessageID;
return [NSString stringWithFormat:@"gcm-%d", downstreamMessageID];
}
}
@end
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