public async Task <APEntity> GetEntity(string id, bool doRemote)
{
if (id == "https://www.w3.org/ns/activitystreams#Public")
{
var aso = new ASObject();
aso.Type.Add("https://www.w3.org/ns/activitystreams#Collection");
aso.Id = "https://www.w3.org/ns/activitystreams#Public";
var ent = APEntity.From(aso);
return(ent);
}
string origin = id;
try {
var uri = new Uri(id);
if (uri.Host == "localhost")
{
return(await Bypass.GetEntity(id, doRemote));
}
origin = uri.GetLeftPart(UriPartial.Authority);
} catch (UriFormatException) { /* nom */ }
APEntity entity = null;
if (Bypass != null)
{
entity = await Bypass.GetEntity(id, doRemote);
}
/* if (entity == null)
* {
* var possibilities = (await _getRE().Query(new RelevantEntitiesService.ContainsAnyStatement("https://www.w3.org/ns/activitystreams#url") { id })).Where(a => Uri.IsWellFormedUriString(a.Id, UriKind.Absolute) && (new Uri(a.Id)).GetLeftPart(UriPartial.Authority) == origin).ToList();
* if (possibilities.Count == 1) entity = possibilities.First();
* }*/
if (entity != null && !entity.IsOwner && entity.Data.Type.Any(_collections.Contains) && doRemote)
{
entity = null;
}
if (entity != null || !doRemote)
{
return(entity);
}
var htc = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Get, id);
request.Headers.TryAddWithoutValidation("Accept", "application/activity+json; application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\", application/json, text/html");
if (_context != null)
{
var signatureVerifier = _serviceProvider.GetRequiredService <SignatureVerifier>();
var user = await Bypass.GetEntity(_context.User.FindFirstValue("actor"), false);
if (user != null)
{
var jwt = await signatureVerifier.BuildJWS(user, id);
if (jwt != null)
{
request.Headers.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", jwt);
}
request.Headers.TryAddWithoutValidation("Signature", await _keyService.BuildHTTPSignature(user.Id, request));
}
}
HttpResponseMessage response = null;
try
{
response = await htc.SendAsync(request);
}
catch (TaskCanceledException)
{
return(null); // timeout
}
catch (HttpRequestException)
{
return(null);
}
ASObject data = null;
await response.Content.LoadIntoBufferAsync();
foreach (var converter in ServerConfig.Converters)
{
if (converter.CanParse && ConverterHelpers.GetBestMatch(converter.MimeTypes, response.Content.Headers.ContentType.ToString()) != null)
{
try {
data = await converter.Build(_serviceProvider, null).Parse(await response.Content.ReadAsStreamAsync());
break;
} catch (NullReferenceException e) { Console.WriteLine(e); /* nom */ }
}
}
if (data == null)
{
return(null);
}
// forces out the old lazy load, if used
await _entityFlattener.FlattenAndStore(Bypass, data, false);
return(await Bypass.GetEntity(id, true));
}
