async void ConnectionReceived(object sender, NewConnectionEventArgs e)
{
await ClientEngine.MainLoop;
try {
if (Engine.ConnectionManager.ShouldBanPeer(e.Peer))
{
e.Connection.Dispose();
return;
}
if (!e.Connection.IsIncoming)
{
var id = new PeerId(e.Peer, e.Connection, e.TorrentManager.Bitfield?.Clone().SetAll(false));
id.LastMessageSent.Restart();
id.LastMessageReceived.Restart();
Engine.ConnectionManager.ProcessNewOutgoingConnection(e.TorrentManager, id);
return;
}
Logger.Log(e.Connection, "ListenManager - ConnectionReceived");
IConnection2 connection = ConnectionConverter.Convert(e.Connection);
EncryptorFactory.EncryptorResult result = await EncryptorFactory.CheckIncomingConnectionAsync(connection, e.Peer.AllowedEncryption, Engine.Settings, SKeys);
if (!await HandleHandshake(e.Peer, connection, result.Handshake, result.Decryptor, result.Encryptor))
{
connection.Dispose();
}
} catch {
e.Connection.Dispose();
}
}
public void AddNavigationConnectionField <TSource, TReturn>(
ComplexGraphType <TSource> graph,
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IEnumerable <TReturn> >?resolve = null,
Type?itemGraphType = null,
IEnumerable <QueryArgument>?arguments = null,
IEnumerable <string>?includeNames = null,
int pageSize = 10,
string?description = null)
where TReturn : class
{
Guard.AgainstNull(nameof(graph), graph);
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNegative(nameof(pageSize), pageSize);
itemGraphType ??= GraphTypeFinder.FindGraphType <TReturn>();
var fieldType = GetFieldType <TSource>(name, itemGraphType);
var builder = ConnectionBuilder <TSource> .Create <FakeGraph>(name);
if (description != null)
{
builder.Description(description);
}
builder.PageSize(pageSize).Bidirectional();
SetField(builder, fieldType);
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeNames);
var hasId = keyNames.ContainsKey(typeof(TReturn));
if (resolve != null)
{
builder.ResolveAsync(async context =>
{
var efFieldContext = BuildContext(context);
var enumerable = resolve(efFieldContext);
enumerable = enumerable.ApplyGraphQlArguments(hasId, context);
enumerable = await efFieldContext.Filters.ApplyFilter(enumerable, context.UserContext);
var page = enumerable.ToList();
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
}
var connection = builder;
var field = graph.AddField(connection.FieldType);
field.AddWhereArgument(hasId, arguments);
}
public void List(int?first, int?after, int?last, int?before)
{
NamerFactory.AdditionalInformation = $"first_{first}_after_{after}_last_{last}_before_{before}";
var connection = ConnectionConverter.ApplyConnectionContext(list, first, after, last, before);
ObjectApprover.VerifyWithJson(connection);
}
ConnectionBuilder <FakeGraph, TSource> BuildListConnectionField <TSource, TReturn>(
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IEnumerable <TReturn> > resolve,
IEnumerable <string> includeName,
int pageSize,
Type graphType)
where TReturn : class
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException(nameof(name));
}
if (resolve == null)
{
throw new ArgumentNullException(nameof(resolve));
}
if (pageSize < 0)
{
throw new ArgumentOutOfRangeException(nameof(pageSize));
}
//lookup the graph type if not explicitly specified
graphType = graphType ?? GraphTypeFinder.FindGraphType <TReturn>();
//create a ConnectionBuilder<graphType, TSource> type by invoking the static Create method on the generic type
var fieldType = GetFieldType <TSource>(name, graphType);
//create a ConnectionBuilder<FakeGraph, TSource> which will be returned from this method
var builder = ConnectionBuilder <FakeGraph, TSource> .Create(name);
//set the page size
builder.PageSize(pageSize);
//using reflection, override the private field type property of the ConnectionBuilder<FakeGraph, TSource> to be the ConnectionBuilder<graphType, TSource> object
SetField(builder, fieldType);
//add the metadata for the tables to be included in the query to the ConnectionBuilder<graphType, TSource> object
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeName);
//set the custom resolver
builder.ResolveAsync(async context =>
{
//run the specified resolve function
var enumerable = resolve(BuildEfContextFromGraphQlContext(context));
//apply any query filters specified in the arguments
enumerable = enumerable.ApplyGraphQlArguments(context);
//apply the global filter on each individually enumerated item
if (filters != null)
{
enumerable = await filters.ApplyFilter(enumerable, context.UserContext);
}
//pagination does NOT occur server-side at this point, as the query has already executed
var page = enumerable.ToList();
//return the proper page of data
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
//return the field to be added to the graph
return(builder);
}
ConnectionBuilder <TGraph, TSource> BuildListConnectionField <TSource, TGraph, TReturn>(
string name,
Func <ResolveFieldContext <TSource>, IEnumerable <TReturn> > resolve,
IEnumerable <string> includeName,
int pageSize)
where TGraph : ObjectGraphType <TReturn>, IGraphType
where TReturn : class
{
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNull(nameof(resolve), resolve);
Guard.AgainstNegative(nameof(pageSize), pageSize);
var builder = ConnectionBuilder.Create <TGraph, TSource>();
builder.PageSize(pageSize);
builder.Name(name);
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeName);
builder.Resolve(context =>
{
var enumerable = resolve(context);
enumerable = enumerable.ApplyGraphQlArguments(context);
enumerable = enumerable.Where(item => GlobalFilters.ShouldInclude(context.UserContext, item));
var page = enumerable.ToList();
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
return(builder);
}
ConnectionBuilder <FakeGraph, TSource> BuildListConnectionField <TSource, TReturn>(
string name,
Func <ResolveFieldContext <TSource>, IEnumerable <TReturn> > resolve,
IEnumerable <string> includeName,
int pageSize,
Type graphType)
where TReturn : class
{
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNull(nameof(resolve), resolve);
Guard.AgainstNegative(nameof(pageSize), pageSize);
graphType = GraphTypeFinder.FindGraphType <TReturn>(graphType);
var fieldType = GetFieldType <TSource>(name, graphType);
var builder = ConnectionBuilder <FakeGraph, TSource> .Create(name);
builder.PageSize(pageSize);
SetField(builder, fieldType);
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeName);
builder.ResolveAsync(async context =>
{
var enumerable = resolve(context);
enumerable = enumerable.ApplyGraphQlArguments(context);
enumerable = await filters.ApplyFilter(enumerable, context.UserContext);
var page = enumerable.ToList();
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
return(builder);
}
async void ConnectToPeer(TorrentManager manager, Peer peer)
{
// Connect to the peer.
IConnection2 connection = ConnectionConverter.Convert(ConnectionFactory.Create(peer.ConnectionUri));
if (connection == null)
{
return;
}
var state = new AsyncConnectState(manager, connection, ValueStopwatch.StartNew());
PendingConnects.Add(state);
manager.Peers.ConnectingToPeers.Add(peer);
bool succeeded;
try {
await NetworkIO.ConnectAsync(connection);
succeeded = true;
} catch {
succeeded = false;
}
PendingConnects.Remove(state);
manager.Peers.ConnectingToPeers.Remove(peer);
if (manager.Engine == null || !manager.Mode.CanAcceptConnections)
{
manager.Peers.AvailablePeers.Add(peer);
connection.Dispose();
return;
}
try {
if (!succeeded)
{
peer.FailedConnectionAttempts++;
connection.Dispose();
manager.Peers.BusyPeers.Add(peer);
manager.RaiseConnectionAttemptFailed(new ConnectionAttemptFailedEventArgs(peer, ConnectionFailureReason.Unreachable, manager));
}
else
{
PeerId id = new PeerId(peer, connection, manager.Bitfield?.Clone().SetAll(false));
id.LastMessageReceived.Restart();
id.LastMessageSent.Restart();
Logger.Log(id.Connection, "ConnectionManager - Connection opened");
ProcessNewOutgoingConnection(manager, id);
}
} catch {
// FIXME: Do nothing now?
} finally {
// Try to connect to another peer
TryConnect();
}
}
public Task List(int?first, int?after, int?last, int?before)
{
var connection = ConnectionConverter.ApplyConnectionContext(list, first, after, last, before);
var settings = new VerifySettings();
settings.UseParameters(first, after, last, before);
return(Verifier.Verify(connection, settings));
}
public async Task Queryable(int?first, int?after, int?last, int?before)
{
NamerFactory.AdditionalInformation = $"first_{first}_after_{after}_last_{last}_before_{before}";
var queryable = new AsyncEnumerable <string>(list);
var connection = await ConnectionConverter.ApplyConnectionContext(queryable, first, after, last, before, new ResolveFieldContext <string>(), new GlobalFilters(), CancellationToken.None);
ObjectApprover.VerifyWithJson(connection);
}
public async Task Queryable(int?first, int?after, int?last, int?before)
{
var fieldContext = new ResolveFieldContext <string>();
await using var database = await sqlInstance.BuildWithRollback();
var entities = database.Context.Entities;
var connection = await ConnectionConverter.ApplyConnectionContext(entities, first, after, last, before, fieldContext, new Filters());
ObjectApprover.Verify(connection);
}
internal PeerId(Peer peer, IConnection connection, BitField bitfield)
: this(peer)
{
if (connection == null)
{
throw new ArgumentNullException(nameof(connection));
}
Connection = ConnectionConverter.Convert(connection);
Peer = peer ?? throw new ArgumentNullException(nameof(peer));
BitField = bitfield;
}
void AddEnumerableConnection <TSource, TGraph, TReturn>(
ComplexGraphType <TSource> graph,
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IEnumerable <TReturn> >?resolve,
int pageSize,
string?description,
IEnumerable <QueryArgument>?arguments,
IEnumerable <string>?includeNames)
where TGraph : IGraphType
where TReturn : class
{
var builder = ConnectionBuilder.Create <TGraph, TSource>();
builder.Name(name);
if (description is not null)
{
builder.Description(description);
}
builder.PageSize(pageSize).Bidirectional();
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeNames);
var hasId = keyNames.ContainsKey(typeof(TReturn));
if (resolve is not null)
{
builder.ResolveAsync(async context =>
{
var efFieldContext = BuildContext(context);
var enumerable = resolve(efFieldContext);
enumerable = enumerable.ApplyGraphQlArguments(hasId, context);
enumerable = await efFieldContext.Filters.ApplyFilter(enumerable, context.UserContext);
var page = enumerable.ToList();
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
}
// TODO: works around https://github.com/graphql-dotnet/graphql-dotnet/pull/2581/
builder.FieldType.Type = typeof(NonNullGraphType <ConnectionType <TGraph, EdgeType <TGraph> > >);
var field = graph.AddField(builder.FieldType);
field.AddWhereArgument(hasId, arguments);
}
public async Task Queryable(int?first, int?after, int?last, int?before)
{
var fieldContext = new ResolveFieldContext <string>();
await using var database = await sqlInstance.Build(databaseSuffix : $"{first.GetValueOrDefault(0)}{after.GetValueOrDefault(0)}{last.GetValueOrDefault(0)}{before.GetValueOrDefault(0)}");
var entities = database.Context.Entities;
var connection = await ConnectionConverter.ApplyConnectionContext(entities.OrderBy(x => x.Property), first, after, last, before, fieldContext, new Filters());
var settings = new VerifySettings();
settings.UseParameters(first, after, last, before);
await Verifier.Verify(connection.Items.OrderBy(x => x.Property), settings);
}
ConnectionBuilder <TSource> BuildListConnectionField <TSource, TReturn>(
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IEnumerable <TReturn> >?resolve,
IEnumerable <string>?includeName,
int pageSize,
Type?itemGraphType,
string?description)
where TReturn : class
{
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNegative(nameof(pageSize), pageSize);
itemGraphType ??= GraphTypeFinder.FindGraphType <TReturn>();
var fieldType = GetFieldType <TSource>(name, itemGraphType);
var builder = ConnectionBuilder <TSource> .Create <FakeGraph>(name);
if (description != null)
{
builder.Description(description);
}
builder.PageSize(pageSize);
SetField(builder, fieldType);
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeName);
if (resolve != null)
{
builder.ResolveAsync(async context =>
{
var efFieldContext = BuildContext(context);
var enumerable = resolve(efFieldContext);
enumerable = enumerable.ApplyGraphQlArguments(context);
enumerable = await efFieldContext.Filters.ApplyFilter(enumerable, context.UserContext);
var page = enumerable.ToList();
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
}
return(builder);
}
ConnectionBuilder <TSource> BuildListConnectionField <TSource, TReturn>(
string name,
Func <ResolveEfFieldContext <TDbContext, TSource>, IEnumerable <TReturn> > resolve,
IEnumerable <string>?includeName,
int pageSize,
Type?graphType)
where TReturn : class
{
Guard.AgainstNullWhiteSpace(nameof(name), name);
Guard.AgainstNull(nameof(resolve), resolve);
Guard.AgainstNegative(nameof(pageSize), pageSize);
//lookup the graph type if not explicitly specified
graphType ??= GraphTypeFinder.FindGraphType <TReturn>();
//create a ConnectionBuilder<graphType, TSource> type by invoking the static Create<graphType> method on the generic type
var builder = GetConnectionBuilder <TSource>(name, graphType);
//set the page size
builder.PageSize(pageSize);
//add the metadata for the tables to be included in the query to the ConnectionBuilder<graphType, TSource> object
IncludeAppender.SetIncludeMetadata(builder.FieldType, name, includeName);
//set the custom resolver
builder.ResolveAsync(async context =>
{
var efFieldContext = BuildContext(context);
//run the specified resolve function
var enumerable = resolve(efFieldContext);
//apply any query filters specified in the arguments
enumerable = enumerable.ApplyGraphQlArguments(context);
//apply the global filter on each individually enumerated item
enumerable = await efFieldContext.Filters.ApplyFilter(enumerable, context.UserContext);
//pagination does NOT occur server-side at this point, as the query has already executed
var page = enumerable.ToList();
//return the proper page of data
return(ConnectionConverter.ApplyConnectionContext(
page,
context.First,
context.After,
context.Last,
context.Before));
});
//return the field to be added to the graph
return(builder);
}
public Task List(int?first, int?after, int?last, int?before)
{
var connection = ConnectionConverter.ApplyConnectionContext(list, first, after, last, before);
return(Verify(connection));
}
public void List(int?first, int?after, int?last, int?before)
{
var connection = ConnectionConverter.ApplyConnectionContext(list, first, after, last, before);
ObjectApprover.Verify(connection);
}
