Fix PN sending from share extension

SessionMessagingKit/Jobs/NotifyPNServerJob.swift

@@ -34,18 +34,25 @@ public final class NotifyPNServerJob : NSObject, Job, NSCoding { // NSObject/NSC
 
     // MARK: Running
     public func execute() {
+        let _: Promise<Void> = execute()
+    }
+    
+    public func execute() -> Promise<Void> {
         let server = PushNotificationAPI.server
         let parameters = [ "data" : message.data.description, "send_to" : message.recipient ]
         let url = URL(string: "\(server)/notify")!
         let request = TSRequest(url: url, method: "POST", parameters: parameters)
         request.allHTTPHeaderFields = [ "Content-Type" : "application/json" ]
-        attempt(maxRetryCount: 4, recoveringOn: DispatchQueue.global()) {
+        let promise = attempt(maxRetryCount: 4, recoveringOn: DispatchQueue.global()) {
             OnionRequestAPI.sendOnionRequest(request, to: server, target: "/loki/v2/lsrpc", using: PushNotificationAPI.serverPublicKey).map { _ in }
-        }.done(on: DispatchQueue.global()) { // Intentionally capture self
+        }
+        let _ = promise.done(on: DispatchQueue.global()) { // Intentionally capture self
             self.handleSuccess()
-        }.catch(on: DispatchQueue.global()) { error in
+        }
+        promise.catch(on: DispatchQueue.global()) { error in
             self.handleFailure(error: error)
         }
+        return promise
     }
 
     private func handleSuccess() {

SessionMessagingKit/Sending & Receiving/MessageSender.swift

@@ -90,6 +90,10 @@ public final class MessageSender : NSObject {
         let storage = SNMessagingKitConfiguration.shared.storage
         let transaction = transaction as! YapDatabaseReadWriteTransaction
         let userPublicKey = storage.getUserPublicKey()
+        var isMainAppAndActive = false
+        if let sharedUserDefaults = UserDefaults(suiteName: "group.com.loki-project.loki-messenger") {
+            isMainAppAndActive = sharedUserDefaults.bool(forKey: "isMainAppActive")
+        }
         // Set the timestamp, sender and recipient
         if message.sentTimestamp == nil { // Visible messages will already have their sent timestamp set
             message.sentTimestamp = NSDate.millisecondTimestamp()
@@ -223,9 +227,18 @@ public final class MessageSender : NSObject {
                         }
                         if shouldNotify {
                             let notifyPNServerJob = NotifyPNServerJob(message: snodeMessage)
-                            JobQueue.shared.add(notifyPNServerJob, using: transaction)
+                            if isMainAppAndActive {
+                                JobQueue.shared.add(notifyPNServerJob, using: transaction)
+                                seal.fulfill(())
+                            } else {
+                                notifyPNServerJob.execute().done(on: DispatchQueue.global(qos: .userInitiated)) {
+                                    seal.fulfill(())
+                                }.catch(on: DispatchQueue.global(qos: .userInitiated)) { _ in
+                                    seal.fulfill(()) // Always fulfill because the notify PN server job isn't critical.
+                                }
+                            }
+                            
                         }
-                        seal.fulfill(())
                     }, completion: { })
                 }
                 $0.catch(on: DispatchQueue.global(qos: .userInitiated)) { error in