Security :: Compile Assembly In Medium Trust
Jan 13, 2010
I have an unsigned custom assembly, that has been deployed to the bin folder of my website. Trying to access a page that explicitly serializes a list using LOSFormatter produces the following exception:
System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.SpecialDemand(PermissionType whatPermission, StackCrawlMark& stackMark) at System.Security.CodeAccessPermission.DemandInternal(PermissionType permissionType) at System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize(Object
graph, Header[] inHeaders, __BinaryWriter serWriter, Boolean fCheck) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream serializationStream, Object graph, Header[] headers, Boolean fCheck) at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize(Stream
serializationStream, Object graph) at System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) The action that failed was: Demand The type of the first permission that failed was: System.Security.Permissions.SecurityPermission
The Zone of the assembly that failed was: MyComputer --- End of inner exception stack trace --- at
System.Web.UI.ObjectStateFormatter.SerializeValue(SerializerBinaryWriter writer, Object value) at System.Web.UI.ObjectStateFormatter.Serialize(Stream outputStream,
Object stateGraph) at System.Web.UI.ObjectStateFormatter.Serialize(Object stateGraph) at System.Web.UI.LosFormatter.SerializeInternal(TextWriter output, Object value) at System.Web.UI.LosFormatter.Serialize(TextWriter output, Object value) at Imbibe.DNN.Controls.CollectionEditorControl`2.SaveViewState()
at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive() at System.Web.UI.Control.SaveViewStateRecursive()
I contacted my Hosting provider, and this was the reply:
This error is coming because your DLL Imbibe.DNN is developed in Full trust. We don't support full trust on shared server. You need to re-compile it again under medium trust. Now, what I am not aware of any option for compiling an assembly for medium trust. Can anybody here please desrible, how do I compile an assembly specifically for medium trust? I added the AllowPartiallyTrustedCallers attribute to the assembly manifest, but it did not resolve the problem.
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