Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / IdentityModel / System / IdentityModel / Selectors / SecurityTokenProvider.cs / 1 / SecurityTokenProvider.cs
//------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------- namespace System.IdentityModel.Selectors { using System.IdentityModel.Diagnostics; using System.IdentityModel.Tokens; using System.Threading; public abstract class SecurityTokenProvider { protected SecurityTokenProvider() { } public virtual bool SupportsTokenRenewal { get { return false; } } public virtual bool SupportsTokenCancellation { get { return false; } } public SecurityToken GetToken(TimeSpan timeout) { SecurityToken token = this.GetTokenCore(timeout); if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.TokenProviderUnableToGetToken, this))); } return token; } public IAsyncResult BeginGetToken(TimeSpan timeout, AsyncCallback callback, object state) { return this.BeginGetTokenCore(timeout, callback, state); } public SecurityToken EndGetToken(IAsyncResult result) { if (result == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("result"); } SecurityToken token = this.EndGetTokenCore(result); if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.TokenProviderUnableToGetToken, this))); } return token; } public SecurityToken RenewToken(TimeSpan timeout, SecurityToken tokenToBeRenewed) { if (tokenToBeRenewed == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenToBeRenewed"); } SecurityToken token = this.RenewTokenCore(timeout, tokenToBeRenewed); if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.TokenProviderUnableToRenewToken, this))); } return token; } public IAsyncResult BeginRenewToken(TimeSpan timeout, SecurityToken tokenToBeRenewed, AsyncCallback callback, object state) { if (tokenToBeRenewed == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("tokenToBeRenewed"); } return this.BeginRenewTokenCore(timeout, tokenToBeRenewed, callback, state); } public SecurityToken EndRenewToken(IAsyncResult result) { if (result == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("result"); } SecurityToken token = this.EndRenewTokenCore(result); if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SecurityTokenException(SR.GetString(SR.TokenProviderUnableToRenewToken, this))); } return token; } public void CancelToken(TimeSpan timeout, SecurityToken token) { if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("token"); } this.CancelTokenCore(timeout, token); } public IAsyncResult BeginCancelToken(TimeSpan timeout, SecurityToken token, AsyncCallback callback, object state) { if (token == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("token"); } return this.BeginCancelTokenCore(timeout, token, callback, state); } public void EndCancelToken(IAsyncResult result) { if (result == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("result"); } this.EndCancelTokenCore(result); } // protected methods protected abstract SecurityToken GetTokenCore(TimeSpan timeout); protected virtual SecurityToken RenewTokenCore(TimeSpan timeout, SecurityToken tokenToBeRenewed) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.GetString(SR.TokenRenewalNotSupported, this))); } protected virtual void CancelTokenCore(TimeSpan timeout, SecurityToken token) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.GetString(SR.TokenCancellationNotSupported, this))); } protected virtual IAsyncResult BeginGetTokenCore(TimeSpan timeout, AsyncCallback callback, object state) { SecurityToken token = this.GetToken(timeout); return new SecurityTokenAsyncResult(token, callback, state); } protected virtual SecurityToken EndGetTokenCore(IAsyncResult result) { return SecurityTokenAsyncResult.End(result); } protected virtual IAsyncResult BeginRenewTokenCore(TimeSpan timeout, SecurityToken tokenToBeRenewed, AsyncCallback callback, object state) { SecurityToken token = this.RenewTokenCore(timeout, tokenToBeRenewed); return new SecurityTokenAsyncResult(token, callback, state); } protected virtual SecurityToken EndRenewTokenCore(IAsyncResult result) { return SecurityTokenAsyncResult.End(result); } protected virtual IAsyncResult BeginCancelTokenCore(TimeSpan timeout, SecurityToken token, AsyncCallback callback, object state) { this.CancelToken(timeout, token); return new SecurityTokenAsyncResult(null, callback, state); } protected virtual void EndCancelTokenCore(IAsyncResult result) { SecurityTokenAsyncResult.End(result); } class SecurityTokenAsyncResult : IAsyncResult { SecurityToken token; object state; ManualResetEvent manualResetEvent; object thisLock = new object(); public SecurityTokenAsyncResult(SecurityToken token, AsyncCallback callback, object state) { this.token = token; this.state = state; if (callback != null) { try { callback(this); } #pragma warning suppress 56500 catch (Exception e) { if (DiagnosticUtility.IsFatal(e)) throw; throw DiagnosticUtility.ExceptionUtility.ThrowHelperCallback(SR.GetString(SR.AsyncCallbackException), e); } } } public object AsyncState { get { return this.state; } } public WaitHandle AsyncWaitHandle { get { if (this.manualResetEvent != null) { return this.manualResetEvent; } lock (thisLock) { if (this.manualResetEvent == null) { this.manualResetEvent = new ManualResetEvent(true); } } return this.manualResetEvent; } } public bool CompletedSynchronously { get { return true; } } public bool IsCompleted { get { return true; } } public static SecurityToken End(IAsyncResult result) { if (result == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("result"); } SecurityTokenAsyncResult completedResult = result as SecurityTokenAsyncResult; if (completedResult == null) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.InvalidAsyncResult), "result")); } return completedResult.token; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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