Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Base / System / Security / RightsManagement / PublishLicense.cs / 1 / PublishLicense.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // This class implements the UnsignedPublishLicense class // this class is the first step in the RightsManagement publishing process // // History: // 06/01/2005: [....] : Initial Implementation // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Diagnostics; using System.Globalization; using System.Windows; using MS.Internal.Security.RightsManagement; using SecurityHelper=MS.Internal.WindowsBase.SecurityHelper; // Disable message about unknown message numbers so as to allow the suppression // of PreSharp warnings (whose numbers are unknown to the compiler). #pragma warning disable 1634, 1691 namespace System.Security.RightsManagement { ////// A Publish License is a list of rights, users, metadata, and other information that specifies how a specific user on /// a specific computer is able to use the specified content. This Publish License must be signed by using the /// UnisignedPublishLicense.Sign function. The resulting signed Publish License is given to a potential end user /// who must then request a Use License by calling the PublishLicense.AcquireUseLicense function. It is only the /// Use License that allows an application to exercise the rights that have been granted. /// ////// Critical: This class expose access to methods that eventually do one or more of the the following /// 1. call into unmanaged code /// 2. affects state/data that will eventually cross over unmanaged code boundary /// 3. Return some RM related information which is considered private /// /// TreatAsSafe: This attrbiute automatically applied to all public entry points. All the public entry points have /// Demands for RightsManagementPermission at entry to counter the possible attacks that do /// not lead to the unamanged code directly(which is protected by another Demand there) but rather leave /// some status/data behind which eventually might cross the unamanaged boundary. /// [SecurityCritical(SecurityCriticalScope.Everything)] public class PublishLicense { ////// This constructor accepts a string representation of a Publish License, which is supposed to be proided by the /// publisher of a document to tyhe consumer of a document. /// public PublishLicense(string signedPublishLicense) { SecurityHelper.DemandRightsManagementPermission(); if (signedPublishLicense == null) { throw new ArgumentNullException("signedPublishLicense"); } _serializedPublishLicense = signedPublishLicense; ///////////////// // parse out the Use License acquisition Url ///////////////// _useLicenseAcquisitionUriFromPublishLicense = ClientSession.GetUseLicenseAcquisitionUriFromPublishLicense(_serializedPublishLicense); if (_useLicenseAcquisitionUriFromPublishLicense == null) { throw new RightsManagementException(RightsManagementFailureCode.InvalidLicense); } ///////////////// // parse out the Content Id GUID ///////////////// String contentIdStr = ClientSession.GetContentIdFromPublishLicense(_serializedPublishLicense); if (contentIdStr == null) { throw new RightsManagementException(RightsManagementFailureCode.InvalidLicense); } else { _contentId = new Guid(contentIdStr); } ///////////////// // parse out the Referral Info ///////////////// ClientSession.GetReferralInfoFromPublishLicense( _serializedPublishLicense, out _referralInfoName, out _referralInfoUri); } ////// This function allows the Owner (or a person granted ViewRightsData right) /// to extract the original publishing information that was encrypted during publishing process. /// public UnsignedPublishLicense DecryptUnsignedPublishLicense(CryptoProvider cryptoProvider ) { SecurityHelper.DemandRightsManagementPermission(); if (cryptoProvider == null) { throw new ArgumentNullException("cryptoProvider"); } return cryptoProvider.DecryptPublishLicense(_serializedPublishLicense); } ////// The referral Information provided by the author of the protected content to the consumer. /// This property usually exposes a contact information to ask for additional rights for the /// the protected content. /// public string ReferralInfoName { get { SecurityHelper.DemandRightsManagementPermission(); return _referralInfoName; } } ////// The referral Information provided by the author of the protected content to the consumer. /// This property usually exposes a contact information to ask for additional rights for the /// the protected content. Commonly mailto: URIs are used to expose a way to contact the author /// of the content. /// public Uri ReferralInfoUri { get { SecurityHelper.DemandRightsManagementPermission(); return _referralInfoUri; } } ////// The ContentId is created by the publisher and can be used to match content to UseLicense and PublishLicenses. /// public Guid ContentId { get { SecurityHelper.DemandRightsManagementPermission(); return _contentId; } } ////// The Uri that will be used by the AcquireUseLicense call to get the UseLicense. /// public Uri UseLicenseAcquisitionUrl { get { SecurityHelper.DemandRightsManagementPermission(); return _useLicenseAcquisitionUriFromPublishLicense; } } ////// Returns the original XrML string that was used to deserialize the Pubish License /// public override string ToString() { SecurityHelper.DemandRightsManagementPermission(); return _serializedPublishLicense; } ////// This function attempts to acquire a Use License. /// public UseLicense AcquireUseLicense(SecureEnvironment secureEnvironment) { SecurityHelper.DemandRightsManagementPermission(); if (secureEnvironment == null) { throw new ArgumentNullException("secureEnvironment"); } // The SecureEnvironment constructor makes sure ClientSession cannot be null. // Accordingly suppressing preSharp warning about having to validate ClientSession. #pragma warning suppress 6506 return secureEnvironment.ClientSession.AcquireUseLicense(_serializedPublishLicense, false); } ////// This function attempts to acquire a Use License. /// This function suppresses the Windows network authentication dialog box. If the license request is denied /// because the user does not have permission. This function will prevent the network authentication dialog /// box from being displayed. This is useful when attempting to handle license acquisition on a background /// or other non-user interface thread because you can avoid potentially confusing dialog boxes. If authentication /// does fail, the function will throw an appropriate RightsManagementException /// public UseLicense AcquireUseLicenseNoUI(SecureEnvironment secureEnvironment) { SecurityHelper.DemandRightsManagementPermission(); if (secureEnvironment == null) { throw new ArgumentNullException("secureEnvironment"); } // The SecureEnvironment constructor makes sure ClientSession cannot be null. // Accordingly suppressing preSharp warning about having to validate ClientSession. #pragma warning suppress 6506 return secureEnvironment.ClientSession.AcquireUseLicense(_serializedPublishLicense, true); } private string _serializedPublishLicense; private string _referralInfoName; private Uri _referralInfoUri; private Guid _contentId; private Uri _useLicenseAcquisitionUriFromPublishLicense = null; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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