Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Security / SecurityTimestamp.cs / 1 / SecurityTimestamp.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.Security { using System.Diagnostics; using System.ServiceModel.Channels; using System.Globalization; using System.Xml; sealed class SecurityTimestamp { const string DefaultFormat = "yyyy-MM-ddTHH:mm:ss.fffZ"; // 012345678901234567890123 internal static readonly TimeSpan defaultTimeToLive = SecurityProtocolFactory.defaultTimestampValidityDuration; char[] computedCreationTimeUtc; char[] computedExpiryTimeUtc; DateTime creationTimeUtc; DateTime expiryTimeUtc; readonly string id; readonly string digestAlgorithm; readonly byte[] digest; public SecurityTimestamp(DateTime creationTimeUtc, DateTime expiryTimeUtc, string id) : this(creationTimeUtc, expiryTimeUtc, id, null, null) { } internal SecurityTimestamp(DateTime creationTimeUtc, DateTime expiryTimeUtc, string id, string digestAlgorithm, byte[] digest) { DiagnosticUtility.DebugAssert(creationTimeUtc.Kind == DateTimeKind.Utc, "creation time must be in UTC"); DiagnosticUtility.DebugAssert(expiryTimeUtc.Kind == DateTimeKind.Utc, "expiry time must be in UTC"); if (creationTimeUtc > expiryTimeUtc) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperWarning(new ArgumentOutOfRangeException("recordedExpiryTime",SR.GetString(SR.CreationTimeUtcIsAfterExpiryTime))); } this.creationTimeUtc = creationTimeUtc; this.expiryTimeUtc = expiryTimeUtc; this.id = id; this.digestAlgorithm = digestAlgorithm; this.digest = digest; } public DateTime CreationTimeUtc { get { return this.creationTimeUtc; } } public DateTime ExpiryTimeUtc { get { return this.expiryTimeUtc; } } public string Id { get { return this.id; } } public string DigestAlgorithm { get { return this.digestAlgorithm; } } internal byte[] GetDigest() { return this.digest; } internal char[] GetCreationTimeChars() { if (this.computedCreationTimeUtc == null) { this.computedCreationTimeUtc = ToChars(ref this.creationTimeUtc); } return this.computedCreationTimeUtc; } internal char[] GetExpiryTimeChars() { if (this.computedExpiryTimeUtc == null) { this.computedExpiryTimeUtc = ToChars(ref this.expiryTimeUtc); } return this.computedExpiryTimeUtc; } static char[] ToChars(ref DateTime utcTime) { char[] buffer = new char[DefaultFormat.Length]; int offset = 0; ToChars(utcTime.Year, buffer, ref offset, 4); buffer[offset++] = '-'; ToChars(utcTime.Month, buffer, ref offset, 2); buffer[offset++] = '-'; ToChars(utcTime.Day, buffer, ref offset, 2); buffer[offset++] = 'T'; ToChars(utcTime.Hour, buffer, ref offset, 2); buffer[offset++] = ':'; ToChars(utcTime.Minute, buffer, ref offset, 2); buffer[offset++] = ':'; ToChars(utcTime.Second, buffer, ref offset, 2); buffer[offset++] = '.'; ToChars(utcTime.Millisecond, buffer, ref offset, 3); buffer[offset++] = 'Z'; return buffer; } static void ToChars(int n, char[] buffer, ref int offset, int count) { for (int i = offset + count - 1; i >= offset; i--) { buffer[i] = (char) ('0' + (n % 10)); n /= 10; } DiagnosticUtility.DebugAssert(n == 0, "Overflow in encoding timestamp field"); offset += count; } public override string ToString() { return string.Format( CultureInfo.InvariantCulture, "SecurityTimestamp: Id={0}, CreationTimeUtc={1}, ExpirationTimeUtc={2}", this.Id, XmlConvert.ToString(this.CreationTimeUtc, XmlDateTimeSerializationMode.RoundtripKind), XmlConvert.ToString(this.ExpiryTimeUtc, XmlDateTimeSerializationMode.RoundtripKind)); } ////// Internal method that checks if the timestamp is fresh with respect to the /// timeToLive and allowedClockSkew values passed in. /// Throws if the timestamp is stale. /// /// /// internal void ValidateRangeAndFreshness(TimeSpan timeToLive, TimeSpan allowedClockSkew) { // Check that the creation time is less than expiry time if (this.CreationTimeUtc >= this.ExpiryTimeUtc) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.TimeStampHasCreationAheadOfExpiry, this.CreationTimeUtc.ToString(DefaultFormat, CultureInfo.CurrentCulture), this.ExpiryTimeUtc.ToString(DefaultFormat, CultureInfo.CurrentCulture)))); } ValidateFreshness(timeToLive, allowedClockSkew); } internal void ValidateFreshness(TimeSpan timeToLive, TimeSpan allowedClockSkew) { DateTime now = DateTime.UtcNow; // check that the message has not expired if (this.ExpiryTimeUtc <= TimeoutHelper.Subtract(now, allowedClockSkew)) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.TimeStampHasExpiryTimeInPast, this.ExpiryTimeUtc.ToString(DefaultFormat, CultureInfo.CurrentCulture), now.ToString(DefaultFormat, CultureInfo.CurrentCulture), allowedClockSkew))); } // check that creation time is not in the future (modulo clock skew) if (this.CreationTimeUtc >= TimeoutHelper.Add(now, allowedClockSkew)) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.TimeStampHasCreationTimeInFuture, this.CreationTimeUtc.ToString(DefaultFormat, CultureInfo.CurrentCulture), now.ToString(DefaultFormat, CultureInfo.CurrentCulture), allowedClockSkew))); } // check that the creation time is not more than timeToLive in the past if (this.CreationTimeUtc <= TimeoutHelper.Subtract(now, TimeoutHelper.Add(timeToLive, allowedClockSkew))) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new MessageSecurityException(SR.GetString(SR.TimeStampWasCreatedTooLongAgo, this.CreationTimeUtc.ToString(DefaultFormat, CultureInfo.CurrentCulture), now.ToString(DefaultFormat, CultureInfo.CurrentCulture), timeToLive, allowedClockSkew))); } // this is a fresh timestamp } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SchemaName.cs
- FileLogRecordStream.cs
- DataBindEngine.cs
- Visual.cs
- DataGridViewUtilities.cs
- SoapConverter.cs
- TableRow.cs
- TableCellAutomationPeer.cs
- cookieexception.cs
- TraceSection.cs
- File.cs
- TreeViewCancelEvent.cs
- DecimalConstantAttribute.cs
- DefaultSection.cs
- EventData.cs
- StoragePropertyMapping.cs
- login.cs
- SpnEndpointIdentity.cs
- ButtonBaseAutomationPeer.cs
- BooleanToVisibilityConverter.cs
- HttpCachePolicyElement.cs
- HandleRef.cs
- UpdateExpressionVisitor.cs
- RecordBuilder.cs
- HScrollBar.cs
- Opcode.cs
- ReadWriteControlDesigner.cs
- CAGDesigner.cs
- SvcMapFileSerializer.cs
- RelationshipSet.cs
- _OverlappedAsyncResult.cs
- StrokeFIndices.cs
- HttpWebRequest.cs
- ListViewInsertedEventArgs.cs
- WebBrowsableAttribute.cs
- NetStream.cs
- WSFederationHttpBinding.cs
- Listbox.cs
- MergeEnumerator.cs
- TreeViewHitTestInfo.cs
- SerializationInfoEnumerator.cs
- FormViewDeleteEventArgs.cs
- Exceptions.cs
- FontFamilyIdentifier.cs
- Activator.cs
- FastEncoderWindow.cs
- HatchBrush.cs
- XmlSortKeyAccumulator.cs
- DataReceivedEventArgs.cs
- XPathExpr.cs
- Substitution.cs
- OleDbConnectionFactory.cs
- _AutoWebProxyScriptWrapper.cs
- DBPropSet.cs
- PropertyMap.cs
- RemotingConfiguration.cs
- DesignerVerb.cs
- SemanticResultValue.cs
- CompiledQuery.cs
- SupportingTokenBindingElement.cs
- PrintDialogDesigner.cs
- EntityParameterCollection.cs
- CollectionDataContract.cs
- TextOptions.cs
- ExceptionHandler.cs
- SpellerStatusTable.cs
- BCLDebug.cs
- RegexRunnerFactory.cs
- AppDomainAttributes.cs
- EventLevel.cs
- Hex.cs
- XmlQueryCardinality.cs
- SafeNativeMethods.cs
- DbParameterHelper.cs
- ImageField.cs
- ValidationSummary.cs
- OleDbException.cs
- BulletedListEventArgs.cs
- BitmapPalettes.cs
- TableLayout.cs
- ConfigurationStrings.cs
- FileDialog_Vista.cs
- Table.cs
- ModuleElement.cs
- ConfigDefinitionUpdates.cs
- DynamicObjectAccessor.cs
- LocalizeDesigner.cs
- DeleteStoreRequest.cs
- DBSqlParserColumnCollection.cs
- SubclassTypeValidatorAttribute.cs
- ImageCodecInfo.cs
- MemberRelationshipService.cs
- NameNode.cs
- InboundActivityHelper.cs
- HttpCookiesSection.cs
- Assembly.cs
- OutputCacheSection.cs
- RemotingService.cs
- SearchExpression.cs
- GPRECT.cs