How to get file stream from the sharepoint file url in dynamic crm plugin? - sharepoint

Question

I have requirement to get file stream of share point file, for the that I have share point file URL.
https://mysite.sharepoint.com/sites/documents/contact/test/Beat01_07262017.pdf
I’m trying to connect to SharePoint Online (using CSOM) from within a plugin in CRM Online . For that to work, I merged the SharePoint Client and Client.Runtime DLL’s with ilmerge.exe into my plugin DLL. But as soon as the following code:
ClientContext clientContext = new ClientContext(server);
clientContext.Credentials = new SharePointOnlineCredentials(UserId, Password); // This line throws an below exception:
Request for the permission of type
‘System.Security.Permissions.RegistryPermission, mscorlib,
Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′
failed.
Is there any way to make it working?
I have checked with SharePoint Integration from CRM Online Workflow/Plugin but not able to get it working
and getting error as below
Exception: Exception has been thrown by the target of an invocation.
Stack Trace at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[]
arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj,
Object[] parameters, Object[] arguments)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.DynamicInvoke(Delegate project,
Object[] args)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.TranslateExpressionToConditionValue(Expression
exp, ParameterExpression[] parameters)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.TranslateWhereCondition(BinaryExpression
be, FilterExpressionWrapper parentFilter, Func 2 getFilter, Func 2
getLinkLookup, Boolean negate)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.TranslateWhere(String
parameterName, BinaryExpression be, FilterExpressionWrapper
parentFilter, Func 2 getFilter, List 1 linkLookups, Boolean
negate)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.TranslateWhereBoolean(String
parameterName, Expression exp, FilterExpressionWrapper parentFilter,
Func 2 getFilter, List 1 linkLookups, BinaryExpression parent, Boolean
negate)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.TranslateWhere(QueryExpression
qe, String parameterName, Expression exp, List 1 linkLookups)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.GetQueryExpression(Expression
expression, Boolean& throwIfSequenceIsEmpty, Boolean&
throwIfSequenceNotSingle, Projection& projection,
NavigationSource& source, List 1& linkLookups)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.Execute[TElement](Expression
expression)
at Microsoft.Xrm.Sdk.Linq.QueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression
expression)
at System.Linq.Queryable.FirstOrDefault[TSource](IQueryable 1
source)
at CRMPluginProject1._365Immo.Laurus.SharePoint.DocumentLocationHelper.GetDocumentLocationPath(SharePointDocumentLocation
parentLocation)
at CRMPluginProject1._365Immo.Laurus.SharePoint.DocumentLocationHelper.CreateDocumentLocation(Entity
site, String documentLibraryName, EntityReference
regardingRecord)
at CRMPluginProject1._365Immo.Laurus.Plugins.GetSharePointFile.Execute(IServiceProvider
serviceProvider)
Inner Exception :
The demand failed due to the code access security information captured during the creation of an anonymously hosted
dynamic method. In order for this operation to succeed, ensure that
the demand would have succeeded at the time the method was created.
See http://go.microsoft.com/fwlink/?LinkId=288746 for more
information.
Stack Trace : at lambda_method(Closure )

Answer 1

The SharePoint client library apparently needs access to the Windows registry. This is not allowed in sandboxed CRM plugins.
In sandboxed plugins code is only allowed to access resources on the web using the http or https protocol. (IP addresses are not allowed either.)