IsTransparentProxy() private method

private IsTransparentProxy ( Object proxy ) : bool
proxy Object
return bool
Example #1
0
 internal ServerIdentity(MarshalByRefObject obj, Context serverCtx) : base(obj is ContextBoundObject)
 {
     if (obj != null)
     {
         if (!RemotingServices.IsTransparentProxy(obj))
         {
             this._srvType = obj.GetType();
         }
         else
         {
             this._srvType = RemotingServices.GetRealProxy(obj).GetProxiedType();
         }
     }
     this._srvCtx            = serverCtx;
     this._serverObjectChain = null;
     this._stackBuilderSink  = null;
 }
Example #2
0
        //   Creates a new server identity. This form is used by RemotingServices.Wrap
        //
        internal ServerIdentity(MarshalByRefObject obj, Context serverCtx) : base(obj is ContextBoundObject)
        {
            if (null != obj)
            {
                if (!RemotingServices.IsTransparentProxy(obj))
                {
                    _srvType = obj.GetType();
                }
                else
                {
                    RealProxy rp = RemotingServices.GetRealProxy(obj);
                    _srvType = rp.GetProxiedType();
                }
            }

            _srvCtx            = serverCtx;
            _serverObjectChain = null;
            _stackBuilderSink  = null;
            _refCount          = 0;
        }
 public void AttachServerObject(MarshalByRefObject serverObject, Context context)
 {
     this.DisposeServerObject();
     this._context      = context;
     this._serverObject = serverObject;
     if (RemotingServices.IsTransparentProxy(serverObject))
     {
         RealProxy realProxy = RemotingServices.GetRealProxy(serverObject);
         if (realProxy.ObjectIdentity == null)
         {
             realProxy.ObjectIdentity = this;
         }
     }
     else
     {
         if (this._objectType.IsContextful)
         {
             this._envoySink = context.CreateEnvoySink(serverObject);
         }
         this._serverObject.ObjectIdentity = this;
     }
 }
Example #4
0
        //
        //
        internal void Init(Object o, Identity idObj, Type requestedType)
        {
            Message.DebugOut("RemotingServices::FillObjRef: IN");
            BCLDebug.Assert(idObj != null, "idObj != null");

            // Set the URI of the object to be marshaled
            uri = idObj.URI;

            // Figure out the type
            MarshalByRefObject obj = idObj.TPOrObject;

            BCLDebug.Assert(null != obj, "Identity not setup correctly");

            // Get the type of the object
            Type serverType = null;

            if (!RemotingServices.IsTransparentProxy(obj))
            {
                serverType = obj.GetType();
            }
            else
            {
                serverType = RemotingServices.GetRealProxy(obj).GetProxiedType();
            }

            Type typeOfObj = (null == requestedType ? serverType : requestedType);

            // Make sure that the server and requested types are compatible
            //  (except for objects that implement IMessageSink, since we
            //   just hand off the message instead of invoking the proxy)
            if ((null != requestedType) &&
                !requestedType.IsAssignableFrom(serverType) &&
                (!typeof(IMessageSink).IsAssignableFrom(serverType)))
            {
                throw new RemotingException(
                          String.Format(
                              CultureInfo.CurrentCulture, Environment.GetResourceString(
                                  "Remoting_InvalidRequestedType"),
                              requestedType.ToString()));;
            }

            {
                RemotingTypeCachedData cache = (RemotingTypeCachedData)
                                               InternalRemotingServices.GetReflectionCachedData(typeOfObj);

                TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
            }

            if (!idObj.IsWellKnown())
            {
                // Create the envoy info
                EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);

                // Create the channel info
                IChannelInfo chan = (IChannelInfo) new ChannelInfo();
                // Make sure the channelInfo only has x-appdomain data since the objref is agile while other
                // channelData might not be and regardless this data is useless for an appdomain proxy
                if (o is AppDomain)
                {
                    Object[] channelData       = chan.ChannelData;
                    int      channelDataLength = channelData.Length;
                    Object[] newChannelData    = new Object[channelDataLength];
                    Array.Copy(channelData, newChannelData, channelDataLength);
                    for (int i = 0; i < channelDataLength; i++)
                    {
                        if (!(newChannelData[i] is CrossAppDomainData))
                        {
                            newChannelData[i] = null;
                        }
                    }
                    chan.ChannelData = newChannelData;
                }
                ChannelInfo = chan;

                if (serverType.HasProxyAttribute)
                {
                    SetHasProxyAttribute();
                }
            }
            else
            {
                SetWellKnown();
            }

            // See if we should and can use a url obj ref?
            if (ShouldUseUrlObjRef())
            {
                if (IsWellKnown())
                {
                    // full uri already supplied.
                    SetObjRefLite();
                }
                else
                {
                    String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
                    if (httpUri != null)
                    {
                        URI = httpUri;
                        SetObjRefLite();
                    }
                }
            }
        } // Init
        internal void Init(object o, Identity idObj, RuntimeType requestedType)
        {
            this.uri = idObj.URI;
            MarshalByRefObject tporObject = idObj.TPOrObject;
            RuntimeType        runtimeType;

            if (!RemotingServices.IsTransparentProxy(tporObject))
            {
                runtimeType = (RuntimeType)tporObject.GetType();
            }
            else
            {
                runtimeType = (RuntimeType)RemotingServices.GetRealProxy(tporObject).GetProxiedType();
            }
            RuntimeType runtimeType2 = (null == requestedType) ? runtimeType : requestedType;

            if (null != requestedType && !requestedType.IsAssignableFrom(runtimeType) && !typeof(IMessageSink).IsAssignableFrom(runtimeType))
            {
                throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_InvalidRequestedType"), requestedType.ToString()));
            }
            if (runtimeType.IsCOMObject)
            {
                DynamicTypeInfo dynamicTypeInfo = new DynamicTypeInfo(runtimeType2);
                this.TypeInfo = dynamicTypeInfo;
            }
            else
            {
                RemotingTypeCachedData reflectionCachedData = InternalRemotingServices.GetReflectionCachedData(runtimeType2);
                this.TypeInfo = reflectionCachedData.TypeInfo;
            }
            if (!idObj.IsWellKnown())
            {
                this.EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
                IChannelInfo channelInfo = new ChannelInfo();
                if (o is AppDomain)
                {
                    object[] channelData = channelInfo.ChannelData;
                    int      num         = channelData.Length;
                    object[] array       = new object[num];
                    Array.Copy(channelData, array, num);
                    for (int i = 0; i < num; i++)
                    {
                        if (!(array[i] is CrossAppDomainData))
                        {
                            array[i] = null;
                        }
                    }
                    channelInfo.ChannelData = array;
                }
                this.ChannelInfo = channelInfo;
                if (runtimeType.HasProxyAttribute)
                {
                    this.SetHasProxyAttribute();
                }
            }
            else
            {
                this.SetWellKnown();
            }
            if (ObjRef.ShouldUseUrlObjRef())
            {
                if (this.IsWellKnown())
                {
                    this.SetObjRefLite();
                    return;
                }
                string text = ChannelServices.FindFirstHttpUrlForObject(this.URI);
                if (text != null)
                {
                    this.URI = text;
                    this.SetObjRefLite();
                }
            }
        }
Example #6
0
        internal IMessageSink GetServerObjectChain(out MarshalByRefObject obj)
        {
            obj = null;
            // NOTE: Lifetime relies on the Identity flags for
            // SingleCall and Singleton being set by the time this getter
            // is called.
            // get
            // {
            if (!this.IsSingleCall())
            {
                // This is the common case
                if (_serverObjectChain == null)
                {
                    lock (this)
                    {
                        if (_serverObjectChain == null)
                        {
                            MarshalByRefObject srvObj =
                                (MarshalByRefObject)
                                this.TPOrObject;

                            _serverObjectChain =
                                _srvCtx.CreateServerObjectChain(
                                    srvObj);
                        }
                    }
                }
                BCLDebug.Assert(null != _serverObjectChain,
                                "null != _serverObjectChain");

                return(_serverObjectChain);
            }
            else
            {
                // ---------- SINGLE CALL WKO --------------
                // In this case, we are expected to provide
                // a fresh server object for each dispatch.
                // Since the server object chain is object
                // specific, we must create a fresh chain too.

                // We must be in the correct context for this
                // to succeed.


                BCLDebug.Assert(Thread.CurrentContext == _srvCtx,
                                "Bad context mismatch");

                // For singleCall we create a fresh object & its chain
                // on each dispatch!
                MarshalByRefObject srvObj = (MarshalByRefObject)
                                            Activator.CreateInstance((Type)_srvType, true);

                // make sure that object didn't Marshal itself.
                // (well known objects should live up to their promise
                // of exporting themselves through exactly one url)
                String tempUri = RemotingServices.GetObjectUri(srvObj);
                if (tempUri != null)
                {
                    throw new RemotingException(
                              String.Format(
                                  Environment.GetResourceString(
                                      "Remoting_WellKnown_CtorCantMarshal"),
                                  this.URI));
                }

                // Set the identity depending on whether we have the server
                // or proxy
                if (!RemotingServices.IsTransparentProxy(srvObj))
                {
#if _DEBUG
                    Identity idObj = srvObj.__RaceSetServerIdentity(this);
#else
                    srvObj.__RaceSetServerIdentity(this);
#endif
#if _DEBUG
                    BCLDebug.Assert(idObj == this, "Bad ID state!");
                    BCLDebug.Assert(idObj == MarshalByRefObject.GetIdentity(srvObj), "Bad ID state!");
#endif
                }
                else
                {
                    RealProxy rp = null;
                    rp = RemotingServices.GetRealProxy(srvObj);
                    BCLDebug.Assert(null != rp, "null != rp");
//  #if _DEBUG
//                      Identity idObj = (ServerIdentity) rp.SetIdentity(this);
// #else
                    rp.IdentityObject = this;
// #endif
                }

                // This is passed out to the caller so that for single-call
                // case we can call Dispose when the incoming call is done
                obj = srvObj;
                // Create the object chain and return it
                return(_srvCtx.CreateServerObjectChain(srvObj));
            }
            // }
        }
Example #7
0
        internal IMessageSink GetServerObjectChain(out MarshalByRefObject obj)
        {
            obj = null;
            // NOTE: Lifetime relies on the Identity flags for
            // SingleCall and Singleton being set by the time this getter
            // is called.
            if (!this.IsSingleCall())
            {
                // This is the common case
                if (_serverObjectChain == null)
                {
                    lock (this)
                    {
                        if (_serverObjectChain == null)
                        {
                            MarshalByRefObject srvObj =
                                (MarshalByRefObject)
                                this.TPOrObject;

                            _serverObjectChain =
                                _srvCtx.CreateServerObjectChain(
                                    srvObj);
                        }
                    }
                }
                BCLDebug.Assert(null != _serverObjectChain,
                                "null != _serverObjectChain");

                return(_serverObjectChain);
            }
            else
            {
                // ---------- SINGLE CALL WKO --------------
                // In this case, we are expected to provide
                // a fresh server object for each dispatch.
                // Since the server object chain is object
                // specific, we must create a fresh chain too.

                // We must be in the correct context for this
                // to succeed.

                // NOTE: It may be useful to recycle the context too
                // but for V1 we will keep the context we setup for
                // the first object around and always dispatch the call
                // through that context ... when we are here we have
                // already been through the server sink chain. We will
                // only dispatch through the object sink chain of the
                // object we will create below ... if for some reason
                // the object creates its own context we will not go
                // through the server sink chain for that context again.
                // We should fix this in V-next and always create everything
                // from scratch for single-call wellKnown objects

                BCLDebug.Assert(Thread.CurrentContext == _srvCtx,
                                "Bad context mismatch");
                MarshalByRefObject srvObj   = null;
                IMessageSink       objChain = null;
                if (_tpOrObject != null && _firstCallDispatched == 0 && Interlocked.CompareExchange(ref _firstCallDispatched, 1, 0) == 0)
                {
                    // use the instance of server object created to
                    // set up the pipeline.
                    srvObj = (MarshalByRefObject)_tpOrObject;

                    objChain = _serverObjectChain;

                    if (objChain == null)
                    {
                        objChain = _srvCtx.CreateServerObjectChain(srvObj);
                    }
                }
                else
                {
                    // For singleCall we create a fresh object & its chain
                    // on each dispatch!
                    srvObj = (MarshalByRefObject)
                             Activator.CreateInstance((Type)_srvType, true);

                    // make sure that object didn't Marshal itself.
                    // (well known objects should live up to their promise
                    // of exporting themselves through exactly one url)
                    String tempUri = RemotingServices.GetObjectUri(srvObj);
                    if (tempUri != null)
                    {
                        throw new RemotingException(
                                  String.Format(
                                      Environment.GetResourceString(
                                          "Remoting_WellKnown_CtorCantMarshal"),
                                      this.URI));
                    }

                    // Set the identity depending on whether we have the server
                    // or proxy
                    if (!RemotingServices.IsTransparentProxy(srvObj))
                    {
#if _DEBUG
                        Identity idObj = srvObj.__RaceSetServerIdentity(this);
#else
                        srvObj.__RaceSetServerIdentity(this);
#endif
#if _DEBUG
                        BCLDebug.Assert(idObj == this, "Bad ID state!");
                        BCLDebug.Assert(idObj == MarshalByRefObject.GetIdentity(srvObj), "Bad ID state!");
#endif
                    }
                    else
                    {
                        RealProxy rp = null;
                        rp = RemotingServices.GetRealProxy(srvObj);
                        BCLDebug.Assert(null != rp, "null != rp");
                        //  #if _DEBUG
                        //                      Identity idObj = (ServerIdentity) rp.SetIdentity(this);
                        // #else
                        rp.IdentityObject = this;
                        // #endif
#if _DEBUG
                        // REVIEW: turn these on after adding a clean way to
                        // reset identity-s on x-context proxies ... (id needs
                        // to be set in the proxy && on the _serverObject in
                        // the proxy)
                        // BCLDebug.Assert(idObj == this, "Bad ID state!" );
                        // BCLDebug.Assert(idObj == rp.IdentityObject, "Bad ID state!" );
#endif
                    }
                    // Create the object chain and return it
                    objChain = _srvCtx.CreateServerObjectChain(srvObj);
                }

                // This is passed out to the caller so that for single-call
                // case we can call Dispose when the incoming call is done
                obj = srvObj;
                return(objChain);
            }
        }
        internal IMessageSink GetServerObjectChain(out MarshalByRefObject obj)
        {
            obj = null;
            if (!this.IsSingleCall())
            {
                if (this._serverObjectChain == null)
                {
                    bool flag = false;
                    RuntimeHelpers.PrepareConstrainedRegions();
                    try
                    {
                        Monitor.Enter(this, ref flag);
                        if (this._serverObjectChain == null)
                        {
                            MarshalByRefObject tporObject = base.TPOrObject;
                            this._serverObjectChain = this._srvCtx.CreateServerObjectChain(tporObject);
                        }
                    }
                    finally
                    {
                        if (flag)
                        {
                            Monitor.Exit(this);
                        }
                    }
                }
                return(this._serverObjectChain);
            }
            MarshalByRefObject marshalByRefObject;
            IMessageSink       messageSink;

            if (this._tpOrObject != null && this._firstCallDispatched == 0 && Interlocked.CompareExchange(ref this._firstCallDispatched, 1, 0) == 0)
            {
                marshalByRefObject = (MarshalByRefObject)this._tpOrObject;
                messageSink        = this._serverObjectChain;
                if (messageSink == null)
                {
                    messageSink = this._srvCtx.CreateServerObjectChain(marshalByRefObject);
                }
            }
            else
            {
                marshalByRefObject = (MarshalByRefObject)Activator.CreateInstance(this._srvType, true);
                string objectUri = RemotingServices.GetObjectUri(marshalByRefObject);
                if (objectUri != null)
                {
                    throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_WellKnown_CtorCantMarshal"), base.URI));
                }
                if (!RemotingServices.IsTransparentProxy(marshalByRefObject))
                {
                    marshalByRefObject.__RaceSetServerIdentity(this);
                }
                else
                {
                    RealProxy realProxy = RemotingServices.GetRealProxy(marshalByRefObject);
                    realProxy.IdentityObject = this;
                }
                messageSink = this._srvCtx.CreateServerObjectChain(marshalByRefObject);
            }
            obj = marshalByRefObject;
            return(messageSink);
        }
Example #9
0
        internal void Init(object o, Identity idObj, RuntimeType requestedType)
        {
            this.uri = idObj.URI;
            MarshalByRefObject tpOrObject   = idObj.TPOrObject;
            RuntimeType        runtimeType1 = RemotingServices.IsTransparentProxy((object)tpOrObject) ? (RuntimeType)RemotingServices.GetRealProxy((object)tpOrObject).GetProxiedType() : (RuntimeType)tpOrObject.GetType();
            RuntimeType        runtimeType2 = (RuntimeType)null == requestedType ? runtimeType1 : requestedType;

            if ((RuntimeType)null != requestedType && !requestedType.IsAssignableFrom((System.Reflection.TypeInfo)runtimeType1) && !typeof(IMessageSink).IsAssignableFrom((Type)runtimeType1))
            {
                throw new RemotingException(string.Format((IFormatProvider)CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_InvalidRequestedType"), (object)requestedType.ToString()));
            }
            this.TypeInfo = !runtimeType1.IsCOMObject ? (IRemotingTypeInfo)InternalRemotingServices.GetReflectionCachedData(runtimeType2).TypeInfo : (IRemotingTypeInfo) new DynamicTypeInfo(runtimeType2);
            if (!idObj.IsWellKnown())
            {
                this.EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
                IChannelInfo channelInfo = (IChannelInfo) new System.Runtime.Remoting.ChannelInfo();
                if (o is AppDomain)
                {
                    object[] channelData = channelInfo.ChannelData;
                    int      length1     = channelData.Length;
                    object[] objArray1   = new object[length1];
                    object[] objArray2   = objArray1;
                    int      length2     = length1;
                    Array.Copy((Array)channelData, (Array)objArray2, length2);
                    for (int index = 0; index < length1; ++index)
                    {
                        if (!(objArray1[index] is CrossAppDomainData))
                        {
                            objArray1[index] = (object)null;
                        }
                    }
                    channelInfo.ChannelData = objArray1;
                }
                this.ChannelInfo = channelInfo;
                if (runtimeType1.HasProxyAttribute)
                {
                    this.SetHasProxyAttribute();
                }
            }
            else
            {
                this.SetWellKnown();
            }
            if (!ObjRef.ShouldUseUrlObjRef())
            {
                return;
            }
            if (this.IsWellKnown())
            {
                this.SetObjRefLite();
            }
            else
            {
                string httpUrlForObject = ChannelServices.FindFirstHttpUrlForObject(this.URI);
                if (httpUrlForObject == null)
                {
                    return;
                }
                this.URI = httpUrlForObject;
                this.SetObjRefLite();
            }
        }
Example #10
0
        //
        //
        internal void Init(Identity idObj, Type requestedType)
        {
            Message.DebugOut("RemotingServices::FillObjRef: IN");
            BCLDebug.Assert(idObj != null, "idObj != null");

            // Set the URI of the object to be marshaled
            URI = idObj.URI;

            // Figure out the type
            MarshalByRefObject obj = idObj.TPOrObject;

            BCLDebug.Assert(null != obj, "Identity not setup correctly");

            // Get the type of the object
            Type serverType = null;

            if (!RemotingServices.IsTransparentProxy(obj))
            {
                serverType = obj.GetType();
            }
            else
            {
                serverType = RemotingServices.GetRealProxy(obj).GetProxiedType();
            }

            Type typeOfObj = (null == requestedType ? serverType : requestedType);

            // Make sure that the server and requested types are compatible
            //  (except for objects that implement IMessageSink, since we
            //   just hand off the message instead of invoking the proxy)
            if ((null != requestedType) &&
                !requestedType.IsAssignableFrom(serverType) &&
                (!typeof(IMessageSink).IsAssignableFrom(serverType)))
            {
                throw new RemotingException(
                          String.Format(
                              Environment.GetResourceString(
                                  "Remoting_InvalidRequestedType"),
                              requestedType.ToString()));;
            }

            // Create the type info
            if (serverType.IsCOMObject)
            {
                // __ComObjects need dynamic TypeInfo
                DynamicTypeInfo dt = new DynamicTypeInfo(typeOfObj);
                TypeInfo = (IRemotingTypeInfo)dt;
            }
            else
            {
                RemotingTypeCachedData cache = (RemotingTypeCachedData)
                                               InternalRemotingServices.GetReflectionCachedData(typeOfObj);

                TypeInfo = (IRemotingTypeInfo)cache.TypeInfo;
            }

            if (!idObj.IsWellKnown())
            {
                // Create the envoy info
                EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);

                // Create the channel info
                ChannelInfo = (IChannelInfo) new ChannelInfo();

                if (serverType.HasProxyAttribute)
                {
                    SetHasProxyAttribute();
                }
            }
            else
            {
                SetWellKnown();
            }

            // See if we should and can use a url obj ref?
            if (ShouldUseUrlObjRef())
            {
                if (IsWellKnown())
                {
                    // full uri already supplied.
                    SetObjRefLite();
                }
                else
                {
                    String httpUri = ChannelServices.FindFirstHttpUrlForObject(URI);
                    if (httpUri != null)
                    {
                        URI = httpUri;
                        SetObjRefLite();
                    }
                }
            }
        } // Init
Example #11
0
        internal void Init(object o, Identity idObj, RuntimeType requestedType)
        {
            this.uri = idObj.URI;
            MarshalByRefObject tPOrObject = idObj.TPOrObject;
            RuntimeType        c          = null;

            if (!RemotingServices.IsTransparentProxy(tPOrObject))
            {
                c = (RuntimeType)tPOrObject.GetType();
            }
            else
            {
                c = (RuntimeType)RemotingServices.GetRealProxy(tPOrObject).GetProxiedType();
            }
            RuntimeType typeOfObj = (null == requestedType) ? c : requestedType;

            if (((null != requestedType) && !requestedType.IsAssignableFrom(c)) && !typeof(IMessageSink).IsAssignableFrom(c))
            {
                throw new RemotingException(string.Format(CultureInfo.CurrentCulture, Environment.GetResourceString("Remoting_InvalidRequestedType"), new object[] { requestedType.ToString() }));
            }
            if (c.IsCOMObject)
            {
                DynamicTypeInfo info = new DynamicTypeInfo(typeOfObj);
                this.TypeInfo = info;
            }
            else
            {
                RemotingTypeCachedData reflectionCachedData = InternalRemotingServices.GetReflectionCachedData(typeOfObj);
                this.TypeInfo = reflectionCachedData.TypeInfo;
            }
            if (!idObj.IsWellKnown())
            {
                this.EnvoyInfo = System.Runtime.Remoting.EnvoyInfo.CreateEnvoyInfo(idObj as ServerIdentity);
                IChannelInfo info2 = new System.Runtime.Remoting.ChannelInfo();
                if (o is AppDomain)
                {
                    object[] channelData      = info2.ChannelData;
                    int      length           = channelData.Length;
                    object[] destinationArray = new object[length];
                    Array.Copy(channelData, destinationArray, length);
                    for (int i = 0; i < length; i++)
                    {
                        if (!(destinationArray[i] is CrossAppDomainData))
                        {
                            destinationArray[i] = null;
                        }
                    }
                    info2.ChannelData = destinationArray;
                }
                this.ChannelInfo = info2;
                if (c.HasProxyAttribute)
                {
                    this.SetHasProxyAttribute();
                }
            }
            else
            {
                this.SetWellKnown();
            }
            if (ShouldUseUrlObjRef())
            {
                if (this.IsWellKnown())
                {
                    this.SetObjRefLite();
                }
                else
                {
                    string str = ChannelServices.FindFirstHttpUrlForObject(this.URI);
                    if (str != null)
                    {
                        this.URI = str;
                        this.SetObjRefLite();
                    }
                }
            }
        }