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10.19.2007 at 11:29AM PDT, ID: 22905290
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8.0

SQL Server 2005 Assembly WebPermission Issue

Asked by ovule in MS SQL Server, .Net Editors & IDEs, .NET Framework 2.x

Tags: , , , ,

I have an assembly which reads an XML file from the Internet, parses it and updates a MS SQL Server 2005 database.  This works perfectly if run standalone.

My problems arise after I register this assembly with SQL Server and then execute a call to one of its methods through some CLR stored procedure.  The exception I am receiving is:

Msg 6522, Level 16, State 1, Procedure UpdateStarter, Line 0
A .NET Framework error occurred during execution of user defined routine or aggregate 'UpdateStarter':
System.Security.SecurityException: Request for the permission of type 'System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
System.Security.SecurityException:
   at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
   at System.Security.CodeAccessPermission.Demand()
   at System.Net.HttpWebRequest..ctor(Uri uri, ServicePoint servicePoint)
   at System.Net.HttpRequestCreator.Create(Uri Uri)
   at System.Net.WebRequest.Create(Uri requestUri, Boolean useUriBase)
   at System.Net.WebRequest.Create(Uri requestUri)
   at System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials)
   at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
   at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
   at System.Xml.XmlTextReaderImpl.OpenUrlDelegate(Object xmlResolver)
   at System.Threading.CompressedStack.runTryCode(Object userData)
   at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   at System.Threading.CompressedStack.Run(CompressedStack compressedStack, ContextCallback callback, Object state)
   at System.Xml.XmlTextReaderImpl.OpenUrl()
   at System.Xml.XmlTextReaderImpl.Read()
   at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace)
   at System.Xml.XmlDocument.Load(XmlReader reader)
   at System.Xml.XmlDocument.Load(String filename)
  ...

I realise this is due to lack of permissions for connecting to the Internet, however do not know how to grant SQL Server permissions to do this, or do something else with the assembly to make it appear safe.

Your help is very appreciated.Start Free Trial
[+][-]10.19.2007 at 11:26PM PDT, ID: 20113962

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About this solution

Zones: MS SQL Server, .Net Editors & IDEs, .NET Framework 2.x
Tags: sql, permission, type, 2005, server
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Solution Provided By: adrpo
Participating Experts: 1
Solution Grade: A
 
 
[+][-]10.20.2007 at 03:03AM PDT, ID: 20114302

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