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Helper functions to deal with web push encryption stuff
function generateKey(keyName, subscription) {
var rawKey;
rawKey = subscription.getKey ? subscription.getKey(keyName) : '';
return rawKey ?
btoa(String.fromCharCode.apply(null, new Uint8Array(rawKey))) :
'';
}
export function generatePublicKey(subscription) {
return Promise.resolve(generateKey('p256dh', subscription));
}
export function generateAuthKey(subscription) {
return Promise.resolve(generateKey('auth', subscription));
}
export function urlBase64ToUint8Array(base64String) {
const padding = '='.repeat((4 - base64String.length % 4) % 4);
const base64 = (base64String + padding)
.replace(/\-/g, '+')
.replace(/_/g, '/');
const rawData = window.atob(base64);
const outputArray = new Uint8Array(rawData.length);
for (let i = 0; i < rawData.length; ++i) {
outputArray[i] = rawData.charCodeAt(i);
}
return outputArray;
}
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