Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Net / System / _UncName.cs / 1 / _UncName.cs
#if !PLATFORM_UNIX //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Globalization; namespace System { // The class designed as to keep minimal the working set of Uri class. // The idea is to stay with static helper methods and strings internal class UncNameHelper { // fields internal const int MaximumInternetNameLength = 256; private UncNameHelper() { } // properties // methods internal static string ParseCanonicalName(string str, int start, int end, ref bool loopback) { return DomainNameHelper.ParseCanonicalName(str, start, end, ref loopback); } // // IsValid // // // ATTN: This class has been re-designed as to conform to XP+ UNC hostname format // It is now similar to DNS name but can contain Unicode characters as well // This class will be removed and replaced by IDN specification later, // but for now we violate URI RFC cause we never escape Unicode characters on the wire // For the same reason we never unescape UNC host names since we never accept // them in escaped format. // // // Valid UNC server name chars: // a Unicode Letter (not allowed as the only in a segment) // a Latin-1 digit // '-' 45 0x2D // '.' 46 0x2E (only as a host domain delimiter) // '_' 95 0x5F // // // Assumption is the caller will check on the resulting name length // Remarks: MUST NOT be used unless all input indexes are are verified and trusted. internal unsafe static bool IsValid(char* name, ushort start, ref int returnedEnd, bool notImplicitFile) { ushort end = (ushort) returnedEnd; if (start==end) return false; // // First segment could consist of only '_' or '-' but it cannot be all digits or empty // bool validShortName = false; ushort i = start; for (; i < end; ++i) { if (name[i] == '/' || name[i] == '\\' || (notImplicitFile && (name[i] == ':' || name[i] == '?' || name[i] == '#'))) { end = i; break; } else if (name[i] == '.') { ++i; break; } if (Char.IsLetter(name[i]) || name[i] == '-' || name[i] == '_') { validShortName = true; } else if (name[i] < '0' || name[i] > '9') return false; } if (!validShortName) return false; // // Subsequent segments must start with a letter or a digit // for (; i < end; ++i) { if (name[i] == '/' || name[i] == '\\' || (notImplicitFile && (name[i] == ':' || name[i] == '?' || name[i] == '#'))) { end = i; break; } else if (name[i] == '.') { if (!validShortName || ((i-1) >= start && name[i-1] == '.')) return false; validShortName = false; } else if (name[i] == '-' || name[i] == '_') { if (!validShortName) return false; } else if (Char.IsLetter(name[i]) || (name[i] >= '0' && name[i] <= '9')) { if (!validShortName) validShortName = true; } else return false; } // last segment can end with the dot if (((i-1) >= start && name[i-1] == '.')) validShortName = true; if (!validShortName) return false; // caller must check for (end - start <= MaximumInternetNameLength) returnedEnd = end; return true; } } } #endif // !PLATFORM_UNIX // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. #if !PLATFORM_UNIX //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Globalization; namespace System { // The class designed as to keep minimal the working set of Uri class. // The idea is to stay with static helper methods and strings internal class UncNameHelper { // fields internal const int MaximumInternetNameLength = 256; private UncNameHelper() { } // properties // methods internal static string ParseCanonicalName(string str, int start, int end, ref bool loopback) { return DomainNameHelper.ParseCanonicalName(str, start, end, ref loopback); } // // IsValid // // // ATTN: This class has been re-designed as to conform to XP+ UNC hostname format // It is now similar to DNS name but can contain Unicode characters as well // This class will be removed and replaced by IDN specification later, // but for now we violate URI RFC cause we never escape Unicode characters on the wire // For the same reason we never unescape UNC host names since we never accept // them in escaped format. // // // Valid UNC server name chars: // a Unicode Letter (not allowed as the only in a segment) // a Latin-1 digit // '-' 45 0x2D // '.' 46 0x2E (only as a host domain delimiter) // '_' 95 0x5F // // // Assumption is the caller will check on the resulting name length // Remarks: MUST NOT be used unless all input indexes are are verified and trusted. internal unsafe static bool IsValid(char* name, ushort start, ref int returnedEnd, bool notImplicitFile) { ushort end = (ushort) returnedEnd; if (start==end) return false; // // First segment could consist of only '_' or '-' but it cannot be all digits or empty // bool validShortName = false; ushort i = start; for (; i < end; ++i) { if (name[i] == '/' || name[i] == '\\' || (notImplicitFile && (name[i] == ':' || name[i] == '?' || name[i] == '#'))) { end = i; break; } else if (name[i] == '.') { ++i; break; } if (Char.IsLetter(name[i]) || name[i] == '-' || name[i] == '_') { validShortName = true; } else if (name[i] < '0' || name[i] > '9') return false; } if (!validShortName) return false; // // Subsequent segments must start with a letter or a digit // for (; i < end; ++i) { if (name[i] == '/' || name[i] == '\\' || (notImplicitFile && (name[i] == ':' || name[i] == '?' || name[i] == '#'))) { end = i; break; } else if (name[i] == '.') { if (!validShortName || ((i-1) >= start && name[i-1] == '.')) return false; validShortName = false; } else if (name[i] == '-' || name[i] == '_') { if (!validShortName) return false; } else if (Char.IsLetter(name[i]) || (name[i] >= '0' && name[i] <= '9')) { if (!validShortName) validShortName = true; } else return false; } // last segment can end with the dot if (((i-1) >= start && name[i-1] == '.')) validShortName = true; if (!validShortName) return false; // caller must check for (end - start <= MaximumInternetNameLength) returnedEnd = end; return true; } } } #endif // !PLATFORM_UNIX // 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
- SchemaType.cs
- DeleteWorkflowOwnerCommand.cs
- Baml6ConstructorInfo.cs
- GroupStyle.cs
- EventLogEntry.cs
- SafeCryptoHandles.cs
- EventRouteFactory.cs
- MdiWindowListItemConverter.cs
- HashSetEqualityComparer.cs
- DrawingAttributesDefaultValueFactory.cs
- CapabilitiesSection.cs
- WindowsMenu.cs
- wgx_commands.cs
- HtmlEncodedRawTextWriter.cs
- ArrayExtension.cs
- SqlStatistics.cs
- XmlCDATASection.cs
- Native.cs
- InputQueue.cs
- CodeDirectiveCollection.cs
- XmlSchemaAppInfo.cs
- QilInvokeLateBound.cs
- DelegateSerializationHolder.cs
- CriticalExceptions.cs
- WindowAutomationPeer.cs
- IntSecurity.cs
- MatrixTransform.cs
- NameValueFileSectionHandler.cs
- PipelineModuleStepContainer.cs
- LayoutExceptionEventArgs.cs
- XPathNavigator.cs
- TextSpan.cs
- PenThread.cs
- WhiteSpaceTrimStringConverter.cs
- XamlStyleSerializer.cs
- SpellerInterop.cs
- JsonDeserializer.cs
- followingquery.cs
- DiscoveryDocumentLinksPattern.cs
- InvalidWMPVersionException.cs
- ExecutedRoutedEventArgs.cs
- ObjectHandle.cs
- CalendarDay.cs
- RuntimeVariablesExpression.cs
- EtwTrace.cs
- GZipObjectSerializer.cs
- RegisteredDisposeScript.cs
- COM2Enum.cs
- View.cs
- AssemblyBuilder.cs
- IRCollection.cs
- NullReferenceException.cs
- TraceUtils.cs
- NodeFunctions.cs
- ClearCollection.cs
- HttpCachePolicyElement.cs
- ListViewInsertedEventArgs.cs
- AttributeCallbackBuilder.cs
- TcpChannelHelper.cs
- DataGridViewColumnCollection.cs
- XmlComplianceUtil.cs
- SamlSerializer.cs
- TextEffect.cs
- TokenBasedSetEnumerator.cs
- ItemsChangedEventArgs.cs
- PageAsyncTaskManager.cs
- RoutingExtension.cs
- TreeNode.cs
- Encoder.cs
- EUCJPEncoding.cs
- CallTemplateAction.cs
- Application.cs
- TypeBuilder.cs
- WMIInterop.cs
- ConfigErrorGlyph.cs
- transactioncontext.cs
- ISAPIApplicationHost.cs
- FileVersionInfo.cs
- MimeAnyImporter.cs
- PartBasedPackageProperties.cs
- PopupRootAutomationPeer.cs
- RemotingServices.cs
- WebBrowserNavigatedEventHandler.cs
- XamlReaderHelper.cs
- LinkUtilities.cs
- ImageFormat.cs
- EventRoute.cs
- BuildDependencySet.cs
- AdCreatedEventArgs.cs
- ScriptingAuthenticationServiceSection.cs
- RefreshEventArgs.cs
- XmlAnyElementAttribute.cs
- EntitySetDataBindingList.cs
- CurrentChangingEventArgs.cs
- ProcessModuleCollection.cs
- HandleCollector.cs
- ModelItemCollectionImpl.cs
- RuleConditionDialog.Designer.cs
- DBSqlParserTableCollection.cs
- InputScopeConverter.cs