use MOLFCMClient v1.5 (#238)

Podfile.lock

@@ -7,7 +7,7 @@ PODS:
   - MOLCertificate (1.5)
   - MOLCodesignChecker (1.5):
     - MOLCertificate (~> 1.3)
-  - MOLFCMClient (1.3):
+  - MOLFCMClient (1.5):
     - MOLAuthenticatingURLSession (~> 2.1)
   - OCMock (3.4)
 
@@ -24,9 +24,9 @@ SPEC CHECKSUMS:
   MOLAuthenticatingURLSession: 5a5e31eb73248c3e92c79b9a285f031194e8404c
   MOLCertificate: c39cae866d24d36fbc78032affff83d401b5384a
   MOLCodesignChecker: fc9c64147811d7b0d0739127003e0630dff9213a
-  MOLFCMClient: 13d8b42db9d750e772f09cc38fc453922fece09f
+  MOLFCMClient: 88debb79f8c0454c3dd4f6514c2453e57a963c08
   OCMock: 35ae71d6a8fcc1b59434d561d1520b9dd4f15765
 
 PODFILE CHECKSUM: acd378b3727c923d912e09812da344f7375c14fe
 
-COCOAPODS: 1.3.1
+COCOAPODS: 1.4.0

Source/santactl/Commands/sync/SNTCommandSyncManager.m

@@ -178,7 +178,7 @@ static void reachabilityHandler(
 }
 
 - (void)isFCMListening:(void (^)(BOOL))reply {
-  reply((self.FCMClient.FCMToken != nil));
+  reply(self.FCMClient.isConnected);
 }
 
 #pragma mark push notification methods
@@ -205,16 +205,17 @@ static void reachabilityHandler(
       [self processFCMMessage:message withMachineID:machineID];
   }];
 
-  self.FCMClient.connectionErrorHandler = ^(NSError *error) {
+  self.FCMClient.connectionErrorHandler = ^(NSHTTPURLResponse *response, NSError *error) {
     STRONGIFY(self);
-    LOGE(@"FCM connection error: %@", error);
+    if (response) LOGE(@"FCM fatal response: %@", response);
+    if (error) LOGE(@"FCM fatal error: %@", error);
     [self.FCMClient disconnect];
     self.FCMClient = nil;
     [self rescheduleTimerQueue:self.fullSyncTimer secondsFromNow:kDefaultFullSyncInterval];
   };
 
   self.FCMClient.loggingBlock = ^(NSString *log) {
-    LOGD(@"%@", log);
+    LOGD(@"FCMClient: %@", log);
   };
 
   [self.FCMClient connect];