Implementing Partial Trust In Share Point
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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