public static IServiceProvider Configure(IServiceCollection services)
{
var assemblyPath = Directory.GetCurrentDirectory();
var config = new KeyValueConfiguration(Path.Combine(assemblyPath, "sir.ini"));
services.Add(new ServiceDescriptor(typeof(IConfigurationProvider), config));
var loggerFactory = services.BuildServiceProvider().GetService <ILoggerFactory>();
var logger = loggerFactory.CreateLogger("Sir");
var model = new BagOfCharsModel();
var sessionFactory = new SessionFactory(@"c:\data\resin", logger);
var qp = new QueryParser <string>(sessionFactory, model, logger);
var httpParser = new HttpQueryParser(qp);
services.AddSingleton(typeof(IModel <string>), model);
services.AddSingleton(typeof(ISessionFactory), sessionFactory);
services.AddSingleton(typeof(SessionFactory), sessionFactory);
services.AddSingleton(typeof(QueryParser <string>), qp);
services.AddSingleton(typeof(HttpQueryParser), httpParser);
services.AddSingleton(typeof(IHttpWriter), new HttpWriter(sessionFactory));
services.AddSingleton(typeof(IHttpReader), new HttpReader(
sessionFactory,
httpParser,
loggerFactory.CreateLogger <HttpReader>()));
return(services.BuildServiceProvider());
}
public override async Task <SortedList <float, IList <IDictionary> > > Evaluate(string formattedQuery)
{
var documents = await base.Evaluate(formattedQuery);
const string modelName = "www";
var q = new HttpQueryParser(new TermQueryParser(), new UnicodeTokenizer())
.FromFormattedString(modelName.ToHash(), formattedQuery);
q.Take = 10;
using (var session = SessionFactory.CreateReadSession(modelName, modelName.ToHash()))
{
var result = await session.Read(q);
foreach (var document in result.Docs)
{
IList <IDictionary> list;
if (!documents.TryGetValue((float)document["___score"], out list))
{
list = new List <IDictionary>();
documents.Add((float)document["___score"], list);
}
list.Add(document);
}
}
return(documents);
}
public HttpReader(
SessionFactory sessionFactory,
HttpQueryParser httpQueryParser,
ILogger <HttpReader> logger)
{
_logger = logger;
_sessionFactory = sessionFactory;
_httpQueryParser = httpQueryParser;
}
/// <summary>
/// Parst den übergeben String und gibt das Ergebnis als HttpQuery Objekt mit den Ergebnissen wieder zurück.
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public static HttpQuery Query(string query)
{
AntlrInputStream input = new AntlrInputStream(query);
var lexer = new HttpQueryLexer(input);
CommonTokenStream tokens = new CommonTokenStream(lexer);
var parser = new HttpQueryParser(tokens);
var context = parser.init();
if (context.exception == null && parser.NumberOfSyntaxErrors == 0)
{
var visitor = new QueryVisitor<object>();
visitor.Visit(context);
return visitor.GetQuery();
}
else
{
return new HttpQuery() { Exception = new Exception("Syntax Error") };
}
}
private void Listener_OnNewConnectionReceived(object sender, RequestReceivedEventArgs e)
{
string hostname = HttpQueryParser.GetHostName(e.Request);
NetworkStream proxyClientStream = e.User.GetStream();
try
{
if (firewall.CheckIfBlocked(hostname))
{
//send error page
proxyClientStream.Write(Encoding.ASCII.GetBytes("<html><body style=\"padding:0; margin:0;\"><img style=\"padding:0; margin:0; width:100%; height:100%;\" src=\"https://www.hostinger.co.id/tutorial/wp-content/uploads/sites/11/2017/08/what-is-403-forbidden-error-and-how-to-fix-it.jpg\"</body></html>"));
return;
}
var targetServer = new TcpClient(hostname, 80);
NetworkStream targetServerStream = targetServer.GetStream();
targetServerStream.Write(e.Request);
var responseBuffer = new byte[32];
//this is to capture status of http request and log it.
targetServerStream.Read(responseBuffer, 0, responseBuffer.Length);
proxyClientStream.Write(responseBuffer, 0, responseBuffer.Length);
var headers = Encoding.UTF8.GetString(responseBuffer).Split("\r\n");
logger.Log(new HttpRequestEntry()
{
ResponseCode = headers[0].Substring(headers[0].IndexOf(" ") + 1),
Hostname = hostname
});
targetServerStream.CopyTo(proxyClientStream);
}
catch { return; }
finally { proxyClientStream.Dispose(); }
}
