private static async Task TrySendPushNotification(PushNotification notification, PushSubscription recipient, WebPush.VapidDetails details, WebPush.WebPushClient client, JsonSerializerSettings serializerSettings, ILogger logger)
{
// This is run in a background thread. We should not access or update mutable state.
try
{
var payload = JsonConvert.SerializeObject(notification, serializerSettings);
var subscription = new WebPush.PushSubscription(recipient.Endpoint, recipient.Keys["p256dh"], recipient.Keys["auth"]);
await client.SendNotificationAsync(subscription, payload, details);
}
catch (Exception error)
{
using (logger.BeginKeyValueScope("recipient", recipient))
using (logger.BeginKeyValueScope("publicKey", details.PublicKey))
using (logger.BeginKeyValueScope("publicKey", details.PrivateKey))
{
logger.LogError(error, "Error sending push notification");
}
}
}
public async Task <ContentResult> Push([Required, FromBody] string name)
{
var user = await _userMgr.GetUserAsync(User);
string ret;
try
{
if (user.InGroupId == null)
{
ret = "not_in_group";
}
else
{
if (user.WebSubscription == null)
{
ret = "s_not_subscribed";
}
else
{
var rcvr = _groupsDb.Users.Where(c => c.InGroupId == user.InGroupId).SingleOrDefault(c => c.UserName == name);
if (rcvr == null)
{
ret = "not_found";
}
else
{
if (rcvr.InGroupId != user.InGroupId)
{
ret = "not_same_group";
}
else
{
var web_subscription = StaticData.GetPushSubscription(rcvr.WebSubscription);
if (web_subscription == null)
{
ret = "r_not_subscribed";
}
else
{
if (rcvr.LastNotified > DateTime.UtcNow.Subtract(TimeSpan.FromHours(1)).Ticks)
{
ret = "is_notified_hour";
}
else
{
if (rcvr.ConnectionId != null)
{
ret = "usr_active";
}
else
{
ValueTask <Chatterer> groupN = _groupsDb.Users.FindAsync(rcvr.InGroupId);
WebPush.WebPushClient client = new WebPush.WebPushClient();
WebPush.VapidDetails det = new WebPush.VapidDetails("mailto:[email protected]",
_connections.vapidPublic, _connections.vapidPrivate);
client.SetVapidDetails(det);
var groupName = (await groupN).Group;
var send_task = client.SendNotificationAsync(web_subscription, $"\"{groupName}\" by {user.UserName}");
rcvr.LastNotified = DateTime.UtcNow.Ticks;
var save_task = _groupsDb.SaveChangesAsync();
await Task.WhenAll(send_task, save_task);
ret = "OK";
}
}
}
}
}
}
}
}
catch (Exception e)
{
ret = e.Message;
}
return(Content(ret, "text/plain"));
}
