private async Task _continueVerify(string mode, string callback, string topic, string lease_seconds, string secret, APEntity user)
{
await Task.Delay(2000);
var hc = new HttpClient();
var testurl = callback;
if (callback.Contains("?"))
{
testurl += "&";
}
else
{
testurl += "?";
}
string challenge = Guid.NewGuid().ToString();
testurl += $"hub.mode={mode}&hub.topic={Uri.EscapeDataString(topic)}&hub.lease_seconds={lease_seconds}&hub.challenge={Uri.EscapeDataString(challenge)}";
var result = await hc.GetAsync(testurl);
if (!result.IsSuccessStatusCode)
{
return;
}
if (await result.Content.ReadAsStringAsync() != challenge)
{
return;
}
WebsubSubscription subscription = await _context.WebsubSubscriptions.FirstOrDefaultAsync(a => a.Callback == callback);
if (subscription != null)
{
subscription.Expiry = DateTime.Now.AddSeconds(int.Parse(lease_seconds ?? "86400"));
subscription.Secret = secret;
if (mode == "unsubscribe")
{
_context.WebsubSubscriptions.Remove(subscription);
}
}
else if (mode == "subscribe")
{
subscription = new WebsubSubscription()
{
Callback = callback,
Expiry = DateTime.Now.AddSeconds(int.Parse(lease_seconds ?? "86400")),
Secret = secret,
User = user
};
_context.WebsubSubscriptions.Add(subscription);
}
await _context.SaveChangesAsync();
}
public override async Task Go()
{
_subscription = await _connection.QuerySingleOrDefaultAsync <WebsubSubscription>("select * from WebsubSubscriptions where Id = @Id", new { Id = Data.Subscription });
if (_subscription == null)
{
return; // gone
}
var objdata = await _object();
// building fake feed because it's wanted
var hc = new HttpClient();
var serialized = Encoding.UTF8.GetBytes((await _entryGenerator.Build(objdata)).ToString(System.Xml.Linq.SaveOptions.DisableFormatting));
var content = new ByteArrayContent(serialized);
content.Headers.ContentType = new MediaTypeHeaderValue("application/atom+xml");
var request = new HttpRequestMessage(HttpMethod.Post, _subscription.Callback)
{
Content = content
};
if (!string.IsNullOrWhiteSpace(_subscription.Secret))
{
var sig = _calculateSignature(serialized);
request.Headers.TryAddWithoutValidation("X-Hub-Signature", sig);
}
var result = await hc.SendAsync(request);
if (!result.IsSuccessStatusCode && (int)result.StatusCode / 100 == 5)
{
throw new Exception("Failed to deliver. Retrying later.");
}
}
private async Task _continueVerify(string mode, string callback, string topic, string lease_seconds, string secret, APEntity user)
{
await Task.Delay(2000);
var hc = new HttpClient();
var testurl = callback;
if (callback.Contains("?"))
{
testurl += "&";
}
else
{
testurl += "?";
}
string challenge = Guid.NewGuid().ToString();
testurl += $"hub.mode={mode}&hub.topic={Uri.EscapeDataString(topic)}&hub.lease_seconds={lease_seconds}&hub.challenge={Uri.EscapeDataString(challenge)}";
var result = await hc.GetAsync(testurl);
if (!result.IsSuccessStatusCode)
{
return;
}
if (await result.Content.ReadAsStringAsync() != challenge)
{
return;
}
WebsubSubscription subscription = await _connection.QueryFirstOrDefaultAsync <WebsubSubscription>("select * from \"WebsubSubscriptions\" where \"Callback\" = @Callback", new { Callback = callback });
if (subscription != null)
{
if (mode == "unsubscribe")
{
await _connection.ExecuteAsync("delete from \"WebsubSubscriptions\" where \"Id\" = @Id", new { Id = subscription.Id });
}
else
{
subscription.Expiry = DateTime.Now.AddSeconds(int.Parse(lease_seconds ?? "86400"));
subscription.Secret = secret;
await _connection.ExecuteAsync("update \"WebsubSubscriptions\" set \"Expiry\"=@Expiry, \"Secret\"=@Secret where \"Id\" = @Id", subscription);
}
}
else if (mode == "subscribe")
{
subscription = new WebsubSubscription()
{
Callback = callback,
Expiry = DateTime.Now.AddSeconds(int.Parse(lease_seconds ?? "86400")),
Secret = secret,
UserId = user.DbId
};
await _connection.ExecuteAsync("insert into \"WebsubSubscriptions\" (\"Callback\", \"Expiry\", \"Secret\", \"UserId\") values (@Callback, @Expiry, @Secret, @UserId)", subscription);
}
}
