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Implementing Partial Trust In Share Point

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Slides from my talk at Tulsa School of Dev about Implementing partially trusted code using code access security policies in SharePoint.

Slides from my talk at Tulsa School of Dev about Implementing partially trusted code using code access security policies in SharePoint.

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  • Partial trust vs. Full Trust
  • Demo the first web part without CAS.
  • Demo CAS by adding APTCA attribute and Manifest.xml configuration.
  • Demo the use of BDC Tools, the MetaData Model and the Import Process
  • Transcript

    • 1. Implemting Partial Trust in SharePoint
      Presenter: Corey Roth
      Enterprise Consultant
      Stonebridge
      Blog: www.dotnetmafia.com
    • 2. Corey Roth
      Consultant for Stonebridge
      Worked in Consumer Electronics, Travel, Advertising, and Energy industries
      Currently doing MOSS development specializing in Enterprise Search and ECM
      OSU Graduate
      Microsoft Award for Customer Excellence (ACE) Winner
      E-mail: corey.roth@gmail.com
      Blog: www.dotnetmafia.com (mirrored on sharepointblogs.com)
    • 3. Beer and Code Meetup Tonight!
      Tonight at Dirty Tavern (325 W 2nd) around 6pm after TechFest
      Come talk with other IT professionals about .NET, C#, Agile, SharePoint, Ruby and more
      Downtown – Just minutes from TechFest
      Now you have something to do tonight!
    • 4. SharePint – A SharePoint Meetup
      Next Thursday at Crawpappy’s (51st and Harvard)
      Come talk with other SharePoint developers in a casual setting
      Great place to talk to others about best practices and your latest SharePoint issues
      No presentations or slides
      Not a User Group
      All are welcome!
    • 5. What is Partial Trust?
    • 6. Why use Partial Trust
      More Secure
      Doesn’t require giving every deployed DLL full trust
      Allows deployment of assemblies to bin folder
      Deployment doesn’t require an Application Pool reset
    • 7. Demo
    • 8. Implementing Partial Trust
      Add [Assembly: AllowParitallyTrustedCallers()] to AssemblyInfo.cs
      Set <trust Level=“Minimal” originUrl=“” /> in web.config
      Define Security Policy in Trust configuration file
      Security policy can be deployed via solution package (.wsp)
      Install solution files with –allowCasPolicies parameter
    • 9. Demo
    • 10. What the Solution Package does…
      Backs up your web.config
      Changes the trust element to WSS_Custom in web.config
      Backs up trust configuration file – wss_minimaltrust.config becomes wss_custom_wss_minimaltrust.config
      Changes the path to the trust configuration file in the web.config <trustLevel> element
      Adds code access security settings from manifest.xml
    • 11. <CodeAccessSecurity>
      Element in trust configuration file that defines which CAS Policies apply to each assembly
      <IPermission> element defines individual rights to resources such as ASP.NET, SharePoint, EventLog, Configuration, SQL Server, File I/O
      Can be copied to configuration file manually or deployed via solution package (wsp)
      <IPermission class="Microsoft.SharePoint.Security.SharePointPermission,
      Microsoft.SharePoint.Security, Version=12.0.0.0,
      Culture=neutral, PublicKeyToken=71e9bce111e9429c"
      version="1" ObjectModel="True" />
    • 12. <IPermission>
      AspNetHostingPermission (Level=“Minimal”) – Required for ASP.NET Controls
      SharePointPermission (ObjectModel=“True”) – Required to use SharePoint API
      FileIOPermission (Read, Write, PathDiscovery, Append) – Specifies files the code can access - $AppDir$ by default
      SqlClientPermission – Required to access SQL Server
      ReflectionPermission – Required for LINQ
      SecurityPermission – Required for most basic operations
      EnvironmentPermission – Provides access to environment variables
    • 13. What requires Full Trust?
      Item Event Receivers
      Timer Jobs
      STSADM Commands
    • 14. Questions?
    • 15. Don’t Forget!
      Beer and Code Meetup Tonight at Dirty’s Tavern (325 E 2nd)
      SharePintMeetup – This Thursday October 16th at Crawpappy’s (51st and Harvard) at 6pm
    • 16. Thanks
      Corey Roth
      coreyroth@gmail.com
      www.dotnetmafia.com