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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
using System;
using System.Text;
using System.Threading;
using org.apache.qpid.transport;
using org.apache.qpid.transport.network.io;
using org.apache.qpid.transport.util;
using System.Security.Cryptography.X509Certificates;
namespace org.apache.qpid.client
{
public class Client : IClient
{
private Connection _conn;
private static readonly Logger _log = Logger.Get(typeof (Client));
private const long timeout = 60000;
private bool _isClosed;
private readonly Object _closeOK;
private IClosedListener _closedListner;
public event EventHandler<ExceptionArgs> ExceptionRaised;
public event EventHandler ConnectionOpenOK;
public event EventHandler ConnectionLost;
public bool IsClosed
{
get { return _isClosed; }
set
{
_isClosed = value;
if(_isClosed && ConnectionLost != null)
ConnectionLost(this, EventArgs.Empty);
}
}
public Object CloseOk
{
get { return _closeOK; }
}
public Client()
{
_isClosed = false;
_closeOK = new object();
}
#region Interface IClient
public void Connect(String host, int port, String virtualHost, String username, String password)
{
Connect(host, port, virtualHost, username, password, "PLAIN");
}
/// <summary>
/// Establishes a connection with a broker using the provided user auths
///
/// </summary>
/// <param name="host">Host name on which a broker is deployed</param>
/// <param name="port">Broker port </param>
/// <param name="virtualHost">virtual host name</param>
/// <param name="username">User Name</param>
/// <param name="password">Password</param>
/// <param name="mechanism">SASL authentication mechanism, possible values: PLAIN, EXTERNAL, DIGEST-MD5, ANONYMOUS</param>
public void Connect(String host, int port, String virtualHost, String username, String password, String mechanism)
{
_log.Debug(String.Format("Client Connecting to host {0}; port {1}; virtualHost {2}; username {3}; mechanism {4}",
host, port, virtualHost, username, mechanism));
ClientConnectionDelegate connectionDelegate = new ClientConnectionDelegate(this, username, password, mechanism);
ManualResetEvent negotiationComplete = new ManualResetEvent(false);
connectionDelegate.SetCondition(negotiationComplete);
connectionDelegate.VirtualHost = virtualHost;
_conn = IoTransport.Connect(host, port, connectionDelegate);
_conn.Send(new ProtocolHeader(1, 0, 10));
negotiationComplete.WaitOne();
if (connectionDelegate.Exception != null)
throw connectionDelegate.Exception;
connectionDelegate.SetCondition(null);
}
/// <summary>
/// Establishes a connection with a broker using SSL
///
/// </summary>
/// <param name="host">Host name on which a broker is deployed</param>
/// <param name="port">Broker port </param>
/// <param name="virtualHost">virtual host name</param>
/// <param name="username">User Name</param>
/// <param name="password">Password</param>
/// <param name="mechanism">SASL authentication mechanism, possible values: PLAIN, EXTERNAL, DIGEST-MD5, ANONYMOUS</param>
/// <param name="serverName">Name of the SSL server</param>
/// <param name="certPath">Path to the X509 certificate to be used for client authentication</param>
/// <param name="certPass">Password to certificate file, pass null if no password is required</param>
/// <param name="rejectUntrusted">If true connection will not be established if the broker is not trusted</param>
public void ConnectSSL(String host, int port, String virtualHost, String username, String password, String mechanism, string serverName, string certPath, String certPass, bool rejectUntrusted)
{
_log.Debug(String.Format("Client Connecting to host {0}; port {1}; virtualHost {2}; username {3}; mechanism {4}",
host, port, virtualHost, username, mechanism));
_log.Debug(String.Format("SSL parameters: serverName: {0}; certPath: {1}; rejectUntrusted: {2}", serverName, certPath, rejectUntrusted));
_conn = IoSSLTransport.Connect(host, port, virtualHost, mechanism, serverName, certPath, certPass, rejectUntrusted, this);
}
/// <summary>
/// Establishes a connection with a broker using SSL
///
/// </summary>
/// <param name="host">Host name on which a broker is deployed</param>
/// <param name="port">Broker port </param>
/// <param name="mechanism">SASL authentication mechanism, possible values: PLAIN, EXTERNAL, DIGEST-MD5, ANONYMOUS</param>
/// <param name="certificate">X509 certificate to be used for client authentication</param>
/// <param name="rejectUntrusted">If true connection will not be established if the broker is not trusted</param>
public void ConnectSSL(String host, int port, String mechanism, X509Certificate certificate, bool rejectUntrusted)
{
_log.Debug(String.Format("Client Connecting to host {0}; port {1}; mechanism {2}",
host, port, mechanism));
_log.Debug(String.Format("SSL parameters: certSubject: {0}; rejectUntrusted: {1}",
certificate.Subject, rejectUntrusted));
_conn = IoSSLTransport.Connect(host, port, mechanism, certificate, rejectUntrusted, this);
}
public void Close()
{
Channel ch = _conn.GetChannel(0);
ch.ConnectionClose(ConnectionCloseCode.NORMAL, "client is closing");
lock (CloseOk)
{
DateTime start = DateTime.Now;
long elapsed = 0;
while (!IsClosed && elapsed < timeout)
{
Monitor.Wait(CloseOk, (int) (timeout - elapsed));
elapsed = DateTime.Now.Subtract(start).Milliseconds;
}
if (!IsClosed)
{
throw new Exception("Timed out when closing connection");
}
_conn.Close();
}
}
public IClientSession CreateSession(long expiryInSeconds)
{
Channel ch = _conn.GetChannel();
ClientSession ssn = new ClientSession(Encoding.UTF8.GetBytes(UUID.RandomUuid().ToString()));
ssn.Attach(ch);
ssn.SessionAttach(ssn.GetName());
ssn.SessionRequestTimeout(expiryInSeconds);
return ssn;
}
public IClosedListener ClosedListener
{
set { _closedListner = value; }
get { return _closedListner; }
}
#endregion
public void RaiseException(Exception exception)
{
if (ExceptionRaised != null)
ExceptionRaised(this, new ExceptionArgs(exception));
}
internal void ConnectionOpenOk(Channel context, ConnectionOpenOk mstruct)
{
if (ConnectionOpenOK != null)
{
ConnectionOpenOK(this, new EventArgs());
}
}
}
}
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