|
static private SerializeMessage ( IMessage msg ) : |
||
| msg | IMessage | |
| return | ||
internal byte[] DoDispatch(byte[] reqStmBuff,
SmuggledMethodCallMessage smuggledMcm,
out SmuggledMethodReturnMessage smuggledMrm)
{
RemotingServices.LogRemotingStage(RemotingServices.SERVER_MSG_DESER);
//*********************** DE-SERIALIZE REQ-MSG ********************
IMessage desReqMsg = null;
if (smuggledMcm != null)
{
ArrayList deserializedArgs = smuggledMcm.FixupForNewAppDomain();
desReqMsg = new MethodCall(smuggledMcm, deserializedArgs);
}
else
{
MemoryStream reqStm = new MemoryStream(reqStmBuff);
desReqMsg = CrossAppDomainSerializer.DeserializeMessage(reqStm);
}
// now we can delegate to the DispatchMessage to do the rest
RemotingServices.LogRemotingStage(RemotingServices.SERVER_MSG_SINK_CHAIN);
IMessage retMsg = ChannelServices.SyncDispatchMessage(desReqMsg);
RemotingServices.LogRemotingStage(RemotingServices.SERVER_RET_SER);
smuggledMrm = SmuggledMethodReturnMessage.SmuggleIfPossible(retMsg);
if (smuggledMrm != null)
{
return(null);
}
else
{
if (retMsg != null)
{
// Null out the principal since we won't use it on the other side.
// This is handled inside of SmuggleIfPossible for method call
// messages.
LogicalCallContext callCtx = (LogicalCallContext)
retMsg.Properties[Message.CallContextKey];
if (callCtx != null)
{
if (callCtx.Principal != null)
{
callCtx.Principal = null;
}
}
return(CrossAppDomainSerializer.SerializeMessage(retMsg).GetBuffer());
}
//*********************** SERIALIZE RET-MSG ********************
return(null);
}
} // DoDispatch
[System.Security.SecurityCritical] // auto-generated
internal static byte[] DoDispatch(byte[] reqStmBuff,
SmuggledMethodCallMessage smuggledMcm,
out SmuggledMethodReturnMessage smuggledMrm)
{
//*********************** DE-SERIALIZE REQ-MSG ********************
IMessage desReqMsg = null;
if (smuggledMcm != null)
{
ArrayList deserializedArgs = smuggledMcm.FixupForNewAppDomain();
desReqMsg = new MethodCall(smuggledMcm, deserializedArgs);
}
else
{
MemoryStream reqStm = new MemoryStream(reqStmBuff);
desReqMsg = CrossAppDomainSerializer.DeserializeMessage(reqStm);
}
LogicalCallContext lcc = Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext;
lcc.SetData(LCC_DATA_KEY, true);
// now we can delegate to the DispatchMessage to do the rest
IMessage retMsg = ChannelServices.SyncDispatchMessage(desReqMsg);
lcc.FreeNamedDataSlot(LCC_DATA_KEY);
smuggledMrm = SmuggledMethodReturnMessage.SmuggleIfPossible(retMsg);
if (smuggledMrm != null)
{
return(null);
}
else
{
if (retMsg != null)
{
// Null out the principal since we won't use it on the other side.
// This is handled inside of SmuggleIfPossible for method call
// messages.
LogicalCallContext callCtx = (LogicalCallContext)
retMsg.Properties[Message.CallContextKey];
if (callCtx != null)
{
if (callCtx.Principal != null)
{
callCtx.Principal = null;
}
}
return(CrossAppDomainSerializer.SerializeMessage(retMsg).GetBuffer());
}
//*********************** SERIALIZE RET-MSG ********************
return(null);
}
} // DoDispatch
} // DoDispatch
internal byte[] DoTransitionDispatch(
byte[] reqStmBuff,
SmuggledMethodCallMessage smuggledMcm,
out SmuggledMethodReturnMessage smuggledMrm)
{
// Note: To be safe w.r.t. the app domain leak code, this frame
// should have no non-agile references in it.
ContextTransitionFrame frame = new ContextTransitionFrame();
// change to server domain
Thread.CurrentThread.EnterContextInternal(
null,
_srvContextID,
_srvDomainID,
ref frame);
byte[] retBuff = null;
smuggledMrm = null;
try
{
Message.DebugOut("#### : changed to Server Domain :: " + (Thread.CurrentContext.InternalContextID).ToString("X"));
retBuff = DoDispatch(reqStmBuff, smuggledMcm, out smuggledMrm);
}
catch (Exception e)
{
// This will catch exceptions thrown by the infrastructure,
// Serialization/Deserialization etc
// Those thrown by the server are already taken care of
// and encoded in the retMsg .. so we don't come here for
// that case.
// We are in another appDomain, so we can't simply throw
// the exception object across. The following marshals it
// into a serialized return message.
IMessage retMsg =
new ReturnMessage(e, new ErrorMessage());
//*********************** SERIALIZE RET-MSG ******************
retBuff = CrossAppDomainSerializer.SerializeMessage(retMsg).GetBuffer();
retMsg = null;
}
finally
{
RemotingServices.LogRemotingStage(RemotingServices.SERVER_RET_SEND);
Thread.CurrentThread.ReturnToContext(ref frame);
Message.DebugOut("#### : changed back to Client Domain " + (Thread.CurrentContext.InternalContextID).ToString("X"));
}
// System.Diagnostics.Debugger.Break();
return(retBuff);
} // DoTransitionDispatch
internal static object DoTransitionDispatchCallback(object[] args)
{
byte[] reqStmBuff = (byte[])args[0];
SmuggledMethodCallMessage smuggledMcm = (SmuggledMethodCallMessage)args[1];
SmuggledMethodReturnMessage smuggledMethodReturnMessage = null;
byte[] result = null;
try
{
result = CrossAppDomainSink.DoDispatch(reqStmBuff, smuggledMcm, out smuggledMethodReturnMessage);
}
catch (Exception e)
{
IMessage msg = new ReturnMessage(e, new ErrorMessage());
result = CrossAppDomainSerializer.SerializeMessage(msg).GetBuffer();
}
args[2] = smuggledMethodReturnMessage;
return(result);
}
internal static object DoTransitionDispatchCallback(object[] args)
{
byte[] reqStmBuff = (byte[])args[0];
SmuggledMethodCallMessage smuggledMcm = (SmuggledMethodCallMessage)args[1];
SmuggledMethodReturnMessage smuggledMrm = (SmuggledMethodReturnMessage)null;
byte[] numArray;
try
{
numArray = CrossAppDomainSink.DoDispatch(reqStmBuff, smuggledMcm, out smuggledMrm);
}
catch (Exception ex)
{
ErrorMessage errorMessage = new ErrorMessage();
numArray = CrossAppDomainSerializer.SerializeMessage((IMessage) new ReturnMessage(ex, (IMethodCallMessage)errorMessage)).GetBuffer();
}
args[2] = (object)smuggledMrm;
return((object)numArray);
}
internal static object DoTransitionDispatchCallback(object[] args)
{
byte[] reqStmBuff = (byte[])args[0];
SmuggledMethodCallMessage smuggledMcm = (SmuggledMethodCallMessage)args[1];
SmuggledMethodReturnMessage smuggledMrm = null;
byte[] buffer = null;
try
{
buffer = DoDispatch(reqStmBuff, smuggledMcm, out smuggledMrm);
}
catch (Exception exception)
{
IMessage msg = new ReturnMessage(exception, new ErrorMessage());
buffer = CrossAppDomainSerializer.SerializeMessage(msg).GetBuffer();
msg = null;
}
args[2] = smuggledMrm;
return(buffer);
}
internal static byte[] DoDispatch(byte[] reqStmBuff, SmuggledMethodCallMessage smuggledMcm, out SmuggledMethodReturnMessage smuggledMrm)
{
IMessage msg1;
if (smuggledMcm != null)
{
ArrayList deserializedArgs = smuggledMcm.FixupForNewAppDomain();
msg1 = (IMessage) new MethodCall(smuggledMcm, deserializedArgs);
}
else
{
msg1 = CrossAppDomainSerializer.DeserializeMessage(new MemoryStream(reqStmBuff));
}
LogicalCallContext logicalCallContext1 = Thread.CurrentThread.GetMutableExecutionContext().LogicalCallContext;
string name1 = "__xADCall";
// ISSUE: variable of a boxed type
__Boxed <bool> local = (ValueType)true;
logicalCallContext1.SetData(name1, (object)local);
IMessage msg2 = ChannelServices.SyncDispatchMessage(msg1);
string name2 = "__xADCall";
logicalCallContext1.FreeNamedDataSlot(name2);
smuggledMrm = SmuggledMethodReturnMessage.SmuggleIfPossible(msg2);
if (smuggledMrm != null)
{
return((byte[])null);
}
if (msg2 == null)
{
return((byte[])null);
}
LogicalCallContext logicalCallContext2 = (LogicalCallContext)msg2.Properties[(object)Message.CallContextKey];
if (logicalCallContext2 != null && logicalCallContext2.Principal != null)
{
logicalCallContext2.Principal = (IPrincipal)null;
}
return(CrossAppDomainSerializer.SerializeMessage(msg2).GetBuffer());
}
[System.Security.SecurityCritical] // auto-generated
internal static Object DoTransitionDispatchCallback(Object[] args)
{
byte[] reqStmBuff = (byte[])args[0];
SmuggledMethodCallMessage smuggledMcm = (SmuggledMethodCallMessage)args[1];
SmuggledMethodReturnMessage smuggledMrm = null;
byte[] retBuff = null;
try
{
#if !FEATURE_CORECLR
Message.DebugOut("#### : changed to Server Domain :: " + (Thread.CurrentContext.InternalContextID).ToString("X"));
#endif
retBuff = DoDispatch(reqStmBuff, smuggledMcm, out smuggledMrm);
}
catch (Exception e)
{
// This will catch exceptions thrown by the infrastructure,
// Serialization/Deserialization etc
// Those thrown by the server are already taken care of
// and encoded in the retMsg .. so we don't come here for
// that case.
// We are in another appDomain, so we can't simply throw
// the exception object across. The following marshals it
// into a serialized return message.
IMessage retMsg =
new ReturnMessage(e, new ErrorMessage());
//*********************** SERIALIZE RET-MSG ******************
retBuff = CrossAppDomainSerializer.SerializeMessage(retMsg).GetBuffer();
retMsg = null;
}
args[2] = smuggledMrm;
return(retBuff);
}
internal static byte[] DoDispatch(byte[] reqStmBuff, SmuggledMethodCallMessage smuggledMcm, out SmuggledMethodReturnMessage smuggledMrm)
{
IMessage msg = null;
if (smuggledMcm != null)
{
ArrayList deserializedArgs = smuggledMcm.FixupForNewAppDomain();
msg = new MethodCall(smuggledMcm, deserializedArgs);
}
else
{
MemoryStream stm = new MemoryStream(reqStmBuff);
msg = CrossAppDomainSerializer.DeserializeMessage(stm);
}
LogicalCallContext logicalCallContext = CallContext.GetLogicalCallContext();
logicalCallContext.SetData("__xADCall", true);
IMessage message2 = ChannelServices.SyncDispatchMessage(msg);
logicalCallContext.FreeNamedDataSlot("__xADCall");
smuggledMrm = SmuggledMethodReturnMessage.SmuggleIfPossible(message2);
if (smuggledMrm != null)
{
return(null);
}
if (message2 == null)
{
return(null);
}
LogicalCallContext context2 = (LogicalCallContext)message2.Properties[Message.CallContextKey];
if ((context2 != null) && (context2.Principal != null))
{
context2.Principal = null;
}
return(CrossAppDomainSerializer.SerializeMessage(message2).GetBuffer());
}
public virtual IMessage SyncProcessMessage(IMessage reqMsg)
{
IMessage message = InternalSink.ValidateMessage(reqMsg);
if (message != null)
{
return(message);
}
IPrincipal principal = null;
IMessage message2 = null;
try
{
IMethodCallMessage methodCallMessage = reqMsg as IMethodCallMessage;
if (methodCallMessage != null)
{
LogicalCallContext logicalCallContext = methodCallMessage.LogicalCallContext;
if (logicalCallContext != null)
{
principal = logicalCallContext.RemovePrincipalIfNotSerializable();
}
}
MemoryStream memoryStream = null;
SmuggledMethodCallMessage smuggledMethodCallMessage = SmuggledMethodCallMessage.SmuggleIfPossible(reqMsg);
if (smuggledMethodCallMessage == null)
{
memoryStream = CrossAppDomainSerializer.SerializeMessage(reqMsg);
}
LogicalCallContext logicalCallContext2 = CallContext.SetLogicalCallContext(null);
byte[] array = null;
SmuggledMethodReturnMessage smuggledMethodReturnMessage;
try
{
if (smuggledMethodCallMessage != null)
{
array = this.DoTransitionDispatch(null, smuggledMethodCallMessage, out smuggledMethodReturnMessage);
}
else
{
array = this.DoTransitionDispatch(memoryStream.GetBuffer(), null, out smuggledMethodReturnMessage);
}
}
finally
{
CallContext.SetLogicalCallContext(logicalCallContext2);
}
if (smuggledMethodReturnMessage != null)
{
ArrayList deserializedArgs = smuggledMethodReturnMessage.FixupForNewAppDomain();
message2 = new MethodResponse((IMethodCallMessage)reqMsg, smuggledMethodReturnMessage, deserializedArgs);
}
else if (array != null)
{
MemoryStream stm = new MemoryStream(array);
message2 = CrossAppDomainSerializer.DeserializeMessage(stm, reqMsg as IMethodCallMessage);
}
}
catch (Exception e)
{
try
{
message2 = new ReturnMessage(e, reqMsg as IMethodCallMessage);
}
catch (Exception)
{
}
}
if (principal != null)
{
IMethodReturnMessage methodReturnMessage = message2 as IMethodReturnMessage;
if (methodReturnMessage != null)
{
LogicalCallContext logicalCallContext3 = methodReturnMessage.LogicalCallContext;
logicalCallContext3.Principal = principal;
}
}
return(message2);
}
[System.Security.SecurityCritical] // auto-generated
public virtual IMessage SyncProcessMessage(IMessage reqMsg)
{
Message.DebugOut("\n::::::::::::::::::::::::: CrossAppDomain Channel: [....] call starting");
IMessage errMsg = InternalSink.ValidateMessage(reqMsg);
if (errMsg != null)
{
return(errMsg);
}
// currentPrincipal is used to save the current principal. It should be
// restored on the reply message.
IPrincipal currentPrincipal = null;
IMessage desRetMsg = null;
try
{
IMethodCallMessage mcmReqMsg = reqMsg as IMethodCallMessage;
if (mcmReqMsg != null)
{
LogicalCallContext lcc = mcmReqMsg.LogicalCallContext;
if (lcc != null)
{
// Special case Principal since if might not be serializable
currentPrincipal = lcc.RemovePrincipalIfNotSerializable();
}
}
MemoryStream reqStm = null;
SmuggledMethodCallMessage smuggledMcm = SmuggledMethodCallMessage.SmuggleIfPossible(reqMsg);
if (smuggledMcm == null)
{
//*********************** SERIALIZE REQ-MSG ****************
// Deserialization of objects requires permissions that users
// of remoting are not guaranteed to possess. Since remoting
// can guarantee that it's users can't abuse deserialization
// (since it won't allow them to pass in raw blobs of
// serialized data), it should assert the permissions
// necessary before calling the deserialization code. This
// will terminate the security stackwalk caused when
// serialization checks for the correct permissions at the
// remoting stack frame so the check won't continue on to
// the user and fail. <EMAIL>[from [....]]</EMAIL>
// We will hold off from doing this for x-process channels
// until the big picture of distributed security is finalized.
reqStm = CrossAppDomainSerializer.SerializeMessage(reqMsg);
}
// Retrieve calling caller context here, where it is safe from the view
// of app domain checking code
LogicalCallContext oldCallCtx = CallContext.SetLogicalCallContext(null);
// Call helper method here, to avoid confusion with stack frames & app domains
MemoryStream retStm = null;
byte[] responseBytes = null;
SmuggledMethodReturnMessage smuggledMrm;
try
{
if (smuggledMcm != null)
{
responseBytes = DoTransitionDispatch(null, smuggledMcm, out smuggledMrm);
}
else
{
responseBytes = DoTransitionDispatch(reqStm.GetBuffer(), null, out smuggledMrm);
}
}
finally
{
CallContext.SetLogicalCallContext(oldCallCtx);
}
if (smuggledMrm != null)
{
ArrayList deserializedArgs = smuggledMrm.FixupForNewAppDomain();
desRetMsg = new MethodResponse((IMethodCallMessage)reqMsg,
smuggledMrm,
deserializedArgs);
}
else
{
if (responseBytes != null)
{
retStm = new MemoryStream(responseBytes);
Message.DebugOut("::::::::::::::::::::::::::: CrossAppDomain Channel: [....] call returning!!\n");
//*********************** DESERIALIZE RET-MSG **************
desRetMsg = CrossAppDomainSerializer.DeserializeMessage(retStm, reqMsg as IMethodCallMessage);
}
}
}
catch (Exception e)
{
Message.DebugOut("Arrgh.. XAppDomainSink::throwing exception " + e + "\n");
try
{
desRetMsg = new ReturnMessage(e, (reqMsg as IMethodCallMessage));
}
catch (Exception)
{
// Fatal Error .. can't do much here
}
}
// restore the principal if necessary.
if (currentPrincipal != null)
{
IMethodReturnMessage mrmRetMsg = desRetMsg as IMethodReturnMessage;
if (mrmRetMsg != null)
{
LogicalCallContext lcc = mrmRetMsg.LogicalCallContext;
lcc.Principal = currentPrincipal;
}
}
return(desRetMsg);
}
public virtual IMessage SyncProcessMessage(IMessage reqMsg)
{
IMessage message = InternalSink.ValidateMessage(reqMsg);
if (message != null)
{
return(message);
}
IPrincipal principal = null;
IMessage message2 = null;
try
{
SmuggledMethodReturnMessage message5;
IMethodCallMessage message3 = reqMsg as IMethodCallMessage;
if (message3 != null)
{
LogicalCallContext logicalCallContext = message3.LogicalCallContext;
if (logicalCallContext != null)
{
principal = logicalCallContext.RemovePrincipalIfNotSerializable();
}
}
MemoryStream stream = null;
SmuggledMethodCallMessage smuggledMcm = SmuggledMethodCallMessage.SmuggleIfPossible(reqMsg);
if (smuggledMcm == null)
{
stream = CrossAppDomainSerializer.SerializeMessage(reqMsg);
}
LogicalCallContext callCtx = CallContext.SetLogicalCallContext(null);
MemoryStream stm = null;
byte[] buffer = null;
try
{
if (smuggledMcm != null)
{
buffer = this.DoTransitionDispatch(null, smuggledMcm, out message5);
}
else
{
buffer = this.DoTransitionDispatch(stream.GetBuffer(), null, out message5);
}
}
finally
{
CallContext.SetLogicalCallContext(callCtx);
}
if (message5 != null)
{
ArrayList deserializedArgs = message5.FixupForNewAppDomain();
message2 = new MethodResponse((IMethodCallMessage)reqMsg, message5, deserializedArgs);
}
else if (buffer != null)
{
stm = new MemoryStream(buffer);
message2 = CrossAppDomainSerializer.DeserializeMessage(stm, reqMsg as IMethodCallMessage);
}
}
catch (Exception exception)
{
try
{
message2 = new ReturnMessage(exception, reqMsg as IMethodCallMessage);
}
catch (Exception)
{
}
}
if (principal != null)
{
IMethodReturnMessage message6 = message2 as IMethodReturnMessage;
if (message6 != null)
{
message6.LogicalCallContext.Principal = principal;
}
}
return(message2);
}
public virtual IMessage SyncProcessMessage(IMessage reqMsg)
{
IMessage message1 = InternalSink.ValidateMessage(reqMsg);
if (message1 != null)
{
return(message1);
}
IPrincipal principal = (IPrincipal)null;
IMessage message2 = (IMessage)null;
try
{
IMethodCallMessage methodCallMessage = reqMsg as IMethodCallMessage;
if (methodCallMessage != null)
{
LogicalCallContext logicalCallContext = methodCallMessage.LogicalCallContext;
if (logicalCallContext != null)
{
principal = logicalCallContext.RemovePrincipalIfNotSerializable();
}
}
MemoryStream memoryStream = (MemoryStream)null;
SmuggledMethodCallMessage smuggledMcm = SmuggledMethodCallMessage.SmuggleIfPossible(reqMsg);
if (smuggledMcm == null)
{
memoryStream = CrossAppDomainSerializer.SerializeMessage(reqMsg);
}
LogicalCallContext callCtx = CallContext.SetLogicalCallContext((LogicalCallContext)null);
byte[] buffer = (byte[])null;
SmuggledMethodReturnMessage smuggledMrm;
try
{
buffer = smuggledMcm == null?this.DoTransitionDispatch(memoryStream.GetBuffer(), (SmuggledMethodCallMessage)null, out smuggledMrm) : this.DoTransitionDispatch((byte[])null, smuggledMcm, out smuggledMrm);
}
finally
{
CallContext.SetLogicalCallContext(callCtx);
}
if (smuggledMrm != null)
{
ArrayList deserializedArgs = smuggledMrm.FixupForNewAppDomain();
message2 = (IMessage) new MethodResponse((IMethodCallMessage)reqMsg, smuggledMrm, deserializedArgs);
}
else if (buffer != null)
{
message2 = CrossAppDomainSerializer.DeserializeMessage(new MemoryStream(buffer), reqMsg as IMethodCallMessage);
}
}
catch (Exception ex1)
{
try
{
message2 = (IMessage) new ReturnMessage(ex1, reqMsg as IMethodCallMessage);
}
catch (Exception ex2)
{
}
}
if (principal != null)
{
IMethodReturnMessage methodReturnMessage = message2 as IMethodReturnMessage;
if (methodReturnMessage != null)
{
methodReturnMessage.LogicalCallContext.Principal = principal;
}
}
return(message2);
}
