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Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=75687 --- shadow/75687 2005-08-02 08:46:52.000000000 -0400 +++ shadow/75687.tmp.16204 2005-08-02 08:46:52.000000000 -0400 @@ -0,0 +1,136 @@ +Bug#: 75687 +Product: Mono: Class Libraries +Version: 1.1 +OS: +OS Details: ubuntu breezy +Status: NEW +Resolution: +Severity: +Priority: Normal +Component: Mono.Security +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: SslClientStream.StartRead() blocks + +I tried to use asynchronously SslClientStream. It works properly, except +that BeginRead() method blocks just like Read(). It makes no difference if +it's first or fifth read operation afte swiching to TLS. + + Below is sample program that connects to Jabber server, performs TLS +negotiation and switches to TLS, then writes a space to actually establish +TLS. There's no "pong" ever printed after call to BeginRead() when no data +is available for reading. + +Program compiles with: mcs -r:Mono.Security.dll test.cs +Mono.Security.dll version: 1.0.5000.0, Key: 0738eb9f132ed756 + +using System; +using System.Text; +using System.IO; +using System.Net.Sockets; +using Mono.Security.Protocol.Tls; +using Mono.Security.X509; +using System.Threading; + +class MainClass +{ + + const string hostname = "jabber.org.au"; + const string init = "<?xml version=\"1.0\"?>\n"+ + "<stream:stream to=\""+hostname+"\" "+ + "xmlns=\"jabber:client\" xmlns:stream=\"http://etherx.jabber.org/streams\"; "+ + "version=\"1.0\">"; + const string starttls = + "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"/>"; + + const int bufSize = 4096; + static byte[] buf = new byte[bufSize]; + + static SslClientStream sslStream; + static Stream stream; + + // reads string from stream + static string Read() + { + int x = stream.Read(buf, 0, bufSize); + string s = Encoding.UTF8.GetString(buf, 0, x); + Console.WriteLine("\nincoming:\n"+s); + return s; + } + + // writes string to stream + static void Write(string s) + { + stream.Write( Encoding.UTF8.GetBytes(s), 0, + Encoding.UTF8.GetByteCount(s) ); + Console.WriteLine("\noutgoing:\n"+s); + } + + private static bool CertificateValidation +(System.Security.Cryptography.X509Certificates.X509Certificate certificate, +int[] certificateErrors) + { + Console.WriteLine("CertificateValidation"); + return true; // don't care, always accept + } + + public static void DataReceived(IAsyncResult ar) + { + try { + int bytes = stream.EndRead(ar); + Console.WriteLine("\nasync +incoming:\n"+Encoding.UTF8.GetString(buf, 0, bytes)); + } + catch (Exception e) { + Console.WriteLine(e.ToString()); + } + } + + public static void Main(string[] args) + { + Mono.Security.Protocol.Tls.SecurityProtocolType protocol = + Mono.Security.Protocol.Tls.SecurityProtocolType.Tls; + System.Security.Cryptography.X509Certificates.X509CertificateCollection +certificates = + new +System.Security.Cryptography.X509Certificates.X509CertificateCollection (); + + TcpClient client = new TcpClient(); + client.Connect(hostname, 5222); + stream = client.GetStream(); + + // TLS negotiation + Write(init); + if (Read().Length < 200) Read(); + Write(starttls); + Read(); + + Console.WriteLine("\nswitching to TlsClientStream\n"); + sslStream = new SslClientStream(stream,hostname, true, +protocol,certificates); + sslStream.ServerCertValidationDelegate += new +CertificateValidationCallback (CertificateValidation); + stream = sslStream; + + // uncommenting this forces server to return some data + // Write(init); + + Write(" "); // to establish connection + + // HERE IS THE PROBLEM + Console.WriteLine("ping"); + try { + sslStream.BeginRead(buf, 0, bufSize, + new AsyncCallback(DataReceived), null ); + } + catch (Exception e) { + Console.WriteLine(e.ToString() ); + } + Console.WriteLine("pong"); + System.Threading.Thread.Sleep(10000); // wait for async + } +} _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
