Work around pywebpush issue #130 by copying claims before passing

ftracker/notifier.py

@@ -1,4 +1,5 @@
 import json
+import copy
 from slugify import slugify
 from threading import Thread, Event
 from datetime import datetime, timedelta
@@ -33,7 +34,7 @@ class Notifier(Thread):
 
 		ps = ps[0]
 
-		print("Sending notification", arrival, ps)
+		print("Sending notification", arrival, ps, self.vapid_creds)
 
 		subscription = ps['sub']
 		notification = {
@@ -41,13 +42,15 @@ class Notifier(Thread):
 			'body': "You didn't sign out of ftracker yet",
 			'arr': arrival
 		}
+		privkey = self.vapid_creds['private_key']
+		claims = copy.copy(self.vapid_creds['claims'])
 
 		try:
 			webpush(
 				subscription,
 				json.dumps(notification),
-				vapid_private_key = self.vapid_creds['private_key'],
-				vapid_claims = self.vapid_creds['claims']
+				vapid_private_key = privkey,
+				vapid_claims = claims
 			)
 			print("Notification sent")
 			return None

web/main.js

@@ -268,16 +268,18 @@ function registerPush(name, pushServerPublicKey) {
 		}).then(function(subscription) {
 			console.log("User is subscribed:", subscription);
 
+			var jsonSub = JSON.stringify({
+				name: name,
+				sub: subscription
+			});
+
 			fetch('/pushsubscribe', {
 				method: "POST",
 				headers: {"Content-Type": "application/json"},
-				body: JSON.stringify({
-					name: name,
-					sub: subscription
-				})
+				body: jsonSub
 			}).then(function(res) {
 				if (res.ok)
-					localStorage.setItem('pushsub', subscription);
+					localStorage.setItem('pushsub', jsonSub);
 			});
 		});
 	});