+++ /dev/null
-//
-// DTDValidatingReader.cs
-//
-// Author:
-// Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
-//
-// (C)2003 Atsushi Enomoto
-// (C)2004 Novell Inc.
-//
-
-//
-// Permission is hereby granted, free of charge, to any person obtaining
-// a copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to
-// permit persons to whom the Software is furnished to do so, subject to
-// the following conditions:
-//
-// The above copyright notice and this permission notice shall be
-// included in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
-// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-//
-using System;
-using System.Collections;
-#if NET_2_0
-using System.Collections.Generic;
-#endif
-using System.IO;
-using System.Text;
-using System.Xml;
-using System.Xml.Schema;
-
-#if NET_2_0
-using XmlTextReaderImpl = Mono.Xml2.XmlTextReader;
-#else
-using XmlTextReaderImpl = System.Xml.XmlTextReader;
-#endif
-
-
-namespace Mono.Xml
-{
-#if NET_2_0
- internal class DTDValidatingReader : XmlReader, IXmlLineInfo, IHasXmlParserContext, IHasXmlSchemaInfo, IXmlNamespaceResolver
-#else
- internal class DTDValidatingReader : XmlReader, IXmlLineInfo, IHasXmlParserContext, IHasXmlSchemaInfo
-#endif
- {
- public DTDValidatingReader (XmlReader reader)
- : this (reader, null)
- {
- }
-
- internal DTDValidatingReader (XmlReader reader,
- XmlValidatingReader validatingReader)
- {
- entityReaderStack = new Stack ();
- entityReaderDepthStack = new Stack ();
- this.reader = reader;
- this.sourceTextReader = reader as XmlTextReader;
- elementStack = new Stack ();
- automataStack = new Stack ();
- attributes = new ArrayList ();
- attributeValues = new Hashtable ();
- attributeLocalNames = new Hashtable ();
- attributeNamespaces = new Hashtable ();
- attributePrefixes = new Hashtable ();
- nsmgr = new XmlNamespaceManager (reader.NameTable);
- this.validatingReader = validatingReader;
- valueBuilder = new StringBuilder ();
- idList = new ArrayList ();
- missingIDReferences = new ArrayList ();
- XmlTextReader xtReader = reader as XmlTextReader;
- if (xtReader != null) {
- resolver = xtReader.Resolver;
- }
- else
- resolver = new XmlUrlResolver ();
- }
-
- Stack entityReaderStack;
- Stack entityReaderDepthStack;
- XmlReader reader;
- XmlTextReader sourceTextReader;
- XmlTextReader nextEntityReader;
- DTDObjectModel dtd;
- Stack elementStack;
- Stack automataStack;
- string currentElement;
- string currentAttribute;
- string currentTextValue;
- string constructingTextValue;
- bool shouldResetCurrentTextValue;
- bool consumedAttribute;
- bool insideContent;
- DTDAutomata currentAutomata;
- DTDAutomata previousAutomata;
- bool isStandalone;
- ArrayList attributes;
- Hashtable attributeValues;
- Hashtable attributeLocalNames;
- Hashtable attributeNamespaces;
- Hashtable attributePrefixes;
- XmlNamespaceManager nsmgr;
- StringBuilder valueBuilder;
- ArrayList idList;
- ArrayList missingIDReferences;
- XmlResolver resolver;
- EntityHandling currentEntityHandling;
- bool isSignificantWhitespace;
- bool isWhitespace;
- bool isText;
- bool dontResetTextType;
- bool popScope;
-
- // This field is used to get properties and to raise events.
- XmlValidatingReader validatingReader;
-
- public DTDObjectModel DTD {
- get { return dtd; }
- }
-
- public EntityHandling EntityHandling {
- get { return currentEntityHandling; }
- set { currentEntityHandling = value; }
- }
-
- public override void Close ()
- {
- reader.Close ();
- }
-
- // We had already done attribute validation, so can ignore name.
- public override string GetAttribute (int i)
- {
- if (currentTextValue != null)
- throw new IndexOutOfRangeException ("Specified index is out of range: " + i);
-
- if (dtd == null)
- return reader.GetAttribute (i);
-
- if (attributes.Count <= i)
- throw new IndexOutOfRangeException ("Specified index is out of range: " + i);
-
- string attrName = (string) attributes [i];
- return FilterNormalization (attrName, (string) attributeValues [attrName]);
- }
-
- public override string GetAttribute (string name)
- {
- if (currentTextValue != null)
- return null;
-
- if (dtd == null)
- return reader.GetAttribute (name);
-
- return FilterNormalization (name, (string) attributeValues [name]);
- }
-
- public override string GetAttribute (string name, string ns)
- {
- if (currentTextValue != null)
- return null;
-
- if (dtd == null)
- return reader.GetAttribute (name, ns);
-
- return reader.GetAttribute ((string) attributeLocalNames [name], ns);
- }
-
-#if NET_2_0
- IDictionary<string, string> IXmlNamespaceResolver.GetNamespacesInScope (XmlNamespaceScope scope)
- {
- IXmlNamespaceResolver res = reader as IXmlNamespaceResolver;
- return res != null ? res.GetNamespacesInScope (scope) : new Dictionary<string, string> ();
- }
-#endif
-
- bool IXmlLineInfo.HasLineInfo ()
- {
- IXmlLineInfo ixli = reader as IXmlLineInfo;
- if (ixli != null)
- return ixli.HasLineInfo ();
- else
- return false;
- }
-
- public override string LookupNamespace (string prefix)
- {
- string s = nsmgr.LookupNamespace (NameTable.Get (prefix));
- return s == String.Empty ? null : s;
- }
-
-#if NET_2_0
- string IXmlNamespaceResolver.LookupPrefix (string ns)
- {
- IXmlNamespaceResolver res = reader as IXmlNamespaceResolver;
- return res != null ? res.LookupPrefix (ns) : null;
- }
-#endif
-
- public override void MoveToAttribute (int i)
- {
- if (currentTextValue != null)
- throw new IndexOutOfRangeException ("The index is out of range.");
-
- if (dtd == null) {
- reader.MoveToAttribute (i);
- currentAttribute = reader.Name;
- consumedAttribute = false;
- return;
- }
-
- if (currentElement == null)
- throw new IndexOutOfRangeException ("The index is out of range.");
-
- if (attributes.Count > i) {
- if (reader.AttributeCount > i)
- reader.MoveToAttribute (i);
- currentAttribute = (string) attributes [i];
- consumedAttribute = false;
- return;
- } else
- throw new IndexOutOfRangeException ("The index is out of range.");
- }
-
- public override bool MoveToAttribute (string name)
- {
- if (currentTextValue != null)
- return false;
-
- if (dtd == null) {
- bool b = reader.MoveToAttribute (name);
- if (b) {
- currentAttribute = reader.Name;
- consumedAttribute = false;
- }
- return b;
- }
-
- if (currentElement == null)
- return false;
-
- int idx = attributes.IndexOf (name);
- if (idx >= 0) {
- currentAttribute = name;
- consumedAttribute = false;
- return true;
- }
- return false;
- }
-
- public override bool MoveToAttribute (string name, string ns)
- {
- if (currentTextValue != null)
- return false;
-
- if (dtd == null) {
- bool b = reader.MoveToAttribute (name, ns);
- if (b) {
- currentAttribute = reader.Name;
- consumedAttribute = false;
- }
- return b;
- }
-
- if (reader.MoveToAttribute (name, ns)) {
- currentAttribute = reader.Name;
- consumedAttribute = false;
- return true;
- }
-
- for (int i = 0; i < attributes.Count; i++) {
- string iter = (string) attributes [i];
- if ((string) attributeLocalNames [iter] == name)
- return MoveToAttribute (iter);
- }
- return false;
- }
-
- public override bool MoveToElement ()
- {
- if (currentTextValue != null)
- return false;
-
- bool b = reader.MoveToElement ();
- if (!b && !IsDefault)
- return false;
- currentAttribute = null;
- consumedAttribute = false;
- return true;
- }
-
- public override bool MoveToFirstAttribute ()
- {
- if (currentTextValue != null)
- return false;
-
- if (dtd == null) {
- bool b = reader.MoveToFirstAttribute ();
- if (b) {
- currentAttribute = reader.Name;
- consumedAttribute = false;
- }
- return b;
- }
-
- if (attributes.Count == 0)
- return false;
- currentAttribute = (string) attributes [0];
- reader.MoveToAttribute (currentAttribute);
- consumedAttribute = false;
- return true;
- }
-
- public override bool MoveToNextAttribute ()
- {
- if (currentTextValue != null)
- return false;
-
- if (dtd == null) {
- bool b = reader.MoveToNextAttribute ();
- if (b) {
- currentAttribute = reader.Name;
- consumedAttribute = false;
- }
- return b;
- }
-
- if (currentAttribute == null)
- return MoveToFirstAttribute ();
-
- int idx = attributes.IndexOf (currentAttribute);
- if (idx + 1 < attributes.Count) {
- currentAttribute = (string) attributes [idx + 1];
- reader.MoveToAttribute (currentAttribute);
- consumedAttribute = false;
- return true;
- } else
- return false;
- }
-
- /*
- private void OnValidationEvent (object o, ValidationEventArgs e)
- {
- this.HandleError (e.Exception, e.Severity);
- }
- */
-
- public override bool Read ()
- {
- if (currentTextValue != null)
- shouldResetCurrentTextValue = true;
-
- MoveToElement ();
-
- currentElement = null;
- currentAttribute = null;
- consumedAttribute = false;
- attributes.Clear ();
- attributeLocalNames.Clear ();
- attributeValues.Clear ();
- attributeNamespaces.Clear ();
- attributePrefixes.Clear ();
- isWhitespace = false;
- isSignificantWhitespace = false;
- isText = false;
- dontResetTextType = false;
-
- bool b = ReadContent () || currentTextValue != null;
- if (!b && this.missingIDReferences.Count > 0) {
- this.HandleError ("Missing ID reference was found: " +
- String.Join (",", missingIDReferences.ToArray (typeof (string)) as string []),
- XmlSeverityType.Error);
- // Don't output the same errors so many times.
- this.missingIDReferences.Clear ();
- }
- if (validatingReader != null)
- EntityHandling = validatingReader.EntityHandling;
- return b;
- }
-
- private bool ReadContent ()
- {
- if (popScope) {
- nsmgr.PopScope ();
- popScope = false;
- }
- if (nextEntityReader != null) {
- if (DTD == null || DTD.EntityDecls [reader.Name] == null)
- throw NotWFError (String.Format ("Entity '{0}' was not declared.", reader.Name));
- entityReaderStack.Push (reader);
- entityReaderDepthStack.Push (Depth);
- reader = sourceTextReader = nextEntityReader;
- nextEntityReader = null;
- return ReadContent ();
- } else if (reader.EOF && entityReaderStack.Count > 0) {
- reader.Close ();
- reader = entityReaderStack.Pop () as XmlReader;
- entityReaderDepthStack.Pop ();
- sourceTextReader = reader as XmlTextReader;
- return ReadContent ();
- }
-
- bool b = !reader.EOF;
- if (shouldResetCurrentTextValue) {
- currentTextValue = null;
- shouldResetCurrentTextValue = false;
- }
- else
- b = reader.Read ();
-
- if (!insideContent && reader.NodeType == XmlNodeType.Element) {
- insideContent = true;
- if (dtd == null)
- currentAutomata = null;
- else
- currentAutomata = dtd.RootAutomata;
- }
-
- if (!b) {
- if (entityReaderStack.Count > 0) {
- if (validatingReader.EntityHandling == EntityHandling.ExpandEntities)
- return ReadContent ();
- else
- return true; // EndEntity
- }
-
- if (elementStack.Count != 0)
- throw new InvalidOperationException ("Unexpected end of XmlReader.");
- return false;
- }
-
- DTDElementDeclaration elem = null;
-
- switch (reader.NodeType) {
- case XmlNodeType.XmlDeclaration:
- if (GetAttribute ("standalone") == "yes")
- isStandalone = true;
- ValidateAttributes (null, false);
- break;
-
- case XmlNodeType.DocumentType:
-// XmlTextReader xmlTextReader = reader as XmlTextReader;
- IHasXmlParserContext ctx = reader as IHasXmlParserContext;
- if (ctx != null)
- dtd = ctx.ParserContext.Dtd;
- if (dtd == null) {
- XmlTextReaderImpl xmlTextReader = new XmlTextReaderImpl ("", XmlNodeType.Document, null);
- xmlTextReader.XmlResolver = resolver;
- xmlTextReader.GenerateDTDObjectModel (reader.Name,
- reader ["PUBLIC"], reader ["SYSTEM"], reader.Value);
- dtd = xmlTextReader.DTD;
- }
-
- // Validity Constraints Check.
- if (DTD.Errors.Length > 0)
- for (int i = 0; i < DTD.Errors.Length; i++)
- HandleError (DTD.Errors [i].Message, XmlSeverityType.Error);
-
- // NData target exists.
- foreach (DTDEntityDeclaration ent in dtd.EntityDecls.Values)
- if (ent.NotationName != null && dtd.NotationDecls [ent.NotationName] == null)
- this.HandleError ("Target notation was not found for NData in entity declaration " + ent.Name + ".",
- XmlSeverityType.Error);
- // NOTATION exists for attribute default values
- foreach (DTDAttListDeclaration attListIter in dtd.AttListDecls.Values)
- foreach (DTDAttributeDefinition def in attListIter.Definitions)
- if (def.Datatype.TokenizedType == XmlTokenizedType.NOTATION) {
- foreach (string notation in def.EnumeratedNotations)
- if (dtd.NotationDecls [notation] == null)
- this.HandleError ("Target notation was not found for NOTATION typed attribute default " + def.Name + ".",
- XmlSeverityType.Error);
- }
-
- break;
-
- case XmlNodeType.Element:
- nsmgr.PushScope ();
- popScope = reader.IsEmptyElement;
- if (constructingTextValue != null) {
- currentTextValue = constructingTextValue;
- constructingTextValue = null;
- if (isWhitespace)
- ValidateWhitespaceNode ();
- return true;
- }
- elementStack.Push (reader.Name);
- // startElementDeriv
- // If no schema specification, then skip validation.
- if (currentAutomata == null) {
- ValidateAttributes (null, false);
- if (reader.IsEmptyElement)
- goto case XmlNodeType.EndElement;
- break;
- }
-
- previousAutomata = currentAutomata;
- currentAutomata = currentAutomata.TryStartElement (reader.Name);
- if (currentAutomata == DTD.Invalid) {
- HandleError (String.Format ("Invalid start element found: {0}", reader.Name),
- XmlSeverityType.Error);
- currentAutomata = previousAutomata;
- }
- elem = DTD.ElementDecls [reader.Name];
- if (elem == null) {
- HandleError (String.Format ("Element {0} is not declared.", reader.Name),
- XmlSeverityType.Error);
- currentAutomata = previousAutomata;
- }
-
- currentElement = Name;
- automataStack.Push (currentAutomata);
- if (elem != null) // i.e. not invalid
- currentAutomata = elem.ContentModel.GetAutomata ();
-
- DTDAttListDeclaration attList = dtd.AttListDecls [currentElement];
- if (attList != null) {
- // check attributes
- ValidateAttributes (attList, true);
- currentAttribute = null;
- } else {
- if (reader.HasAttributes) {
- HandleError (String.Format (
- "Attributes are found on element {0} while it has no attribute definitions.", currentElement),
- XmlSeverityType.Error);
- }
- // SetupValidityIgnorantAttributes ();
- ValidateAttributes (null, false);
- }
- // If it is empty element then directly check end element.
- if (reader.IsEmptyElement)
- goto case XmlNodeType.EndElement;
- break;
-
- case XmlNodeType.EndElement:
- if (constructingTextValue != null) {
- currentTextValue = constructingTextValue;
- constructingTextValue = null;
- return true;
- }
- popScope = true;
- elementStack.Pop ();
- // endElementDeriv
- // If no schema specification, then skip validation.
- if (currentAutomata == null)
- break;
-
- elem = DTD.ElementDecls [reader.Name];
- if (elem == null) {
- HandleError (String.Format ("Element {0} is not declared.", reader.Name),
- XmlSeverityType.Error);
- }
-
- previousAutomata = currentAutomata;
- // Don't let currentAutomata
- DTDAutomata tmpAutomata = currentAutomata.TryEndElement ();
- if (tmpAutomata == DTD.Invalid) {
- HandleError (String.Format ("Invalid end element found: {0}", reader.Name),
- XmlSeverityType.Error);
- currentAutomata = previousAutomata;
- }
-
- currentAutomata = automataStack.Pop () as DTDAutomata;
- break;
-
- case XmlNodeType.CDATA:
- isSignificantWhitespace = isWhitespace = false;
- isText = true;
-
- ValidateText ();
-
- if (currentTextValue != null) {
- currentTextValue = constructingTextValue;
- constructingTextValue = null;
- return true;
- }
- break;
- case XmlNodeType.SignificantWhitespace:
- if (!isText)
- isSignificantWhitespace = true;
- isWhitespace = false;
- dontResetTextType = true;
- goto case XmlNodeType.DocumentFragment;
- case XmlNodeType.Text:
- isWhitespace = isSignificantWhitespace = false;
- isText = true;
- goto case XmlNodeType.DocumentFragment;
- case XmlNodeType.DocumentFragment:
- // it should not happen, but in case if
- // XmlReader really returns it, just ignore.
- if (reader.NodeType == XmlNodeType.DocumentFragment)
- break;
-
- ValidateText ();
-
- if (entityReaderStack.Count > 0 && validatingReader.EntityHandling == EntityHandling.ExpandEntities) {
- constructingTextValue += reader.Value;
- return ReadContent ();
- }
- break;
- case XmlNodeType.Whitespace:
- if (!isText && !isSignificantWhitespace)
- isWhitespace = true;
- goto case XmlNodeType.DocumentFragment;
- case XmlNodeType.EntityReference:
- if (validatingReader.EntityHandling == EntityHandling.ExpandEntities) {
- ResolveEntity ();
- return ReadContent ();
- }
- break;
- }
- if (isWhitespace)
- ValidateWhitespaceNode ();
- currentTextValue = constructingTextValue;
- constructingTextValue = null;
- MoveToElement ();
- return true;
- }
-
- private void ValidateText ()
- {
- if (currentAutomata == null)
- return;
-
- DTDElementDeclaration elem = null;
- if (elementStack.Count > 0)
- elem = dtd.ElementDecls [elementStack.Peek () as string];
- // Here element should have been already validated, so
- // if no matching declaration is found, simply ignore.
- if (elem != null && !elem.IsMixedContent && !elem.IsAny && !isWhitespace) {
- HandleError (String.Format ("Current element {0} does not allow character data content.", elementStack.Peek () as string),
- XmlSeverityType.Error);
- currentAutomata = previousAutomata;
- }
- }
-
- private void ValidateWhitespaceNode ()
- {
- // VC Standalone Document Declaration (2.9)
- if (this.isStandalone && DTD != null && elementStack.Count > 0) {
- DTDElementDeclaration elem = DTD.ElementDecls [elementStack.Peek () as string];
- if (elem != null && !elem.IsInternalSubset && !elem.IsMixedContent && !elem.IsAny && !elem.IsEmpty)
- HandleError ("In standalone document, whitespace cannot appear in an element whose declaration explicitly contains child content model, not Mixed content.", XmlSeverityType.Error);
- }
- }
-
- private XmlException NotWFError (string message)
- {
- return new XmlException (this as IXmlLineInfo, BaseURI, message);
- }
-
- private void HandleError (string message, XmlSeverityType severity)
- {
- if (validatingReader != null &&
- validatingReader.ValidationType == ValidationType.None)
- return;
-
- IXmlLineInfo info = this as IXmlLineInfo;
- bool hasLine = info.HasLineInfo ();
- XmlSchemaException ex = new XmlSchemaException (
- message,
- hasLine ? info.LineNumber : 0,
- hasLine ? info.LinePosition : 0,
- null,
- BaseURI,
- null);
- HandleError (ex, severity);
- }
-
- private void HandleError (XmlSchemaException ex, XmlSeverityType severity)
- {
- if (validatingReader != null &&
- validatingReader.ValidationType == ValidationType.None)
- return;
-
- if (validatingReader != null)
- this.validatingReader.OnValidationEvent (this,
- new ValidationEventArgs (ex, ex.Message, severity));
- else if (severity == XmlSeverityType.Error)
- throw ex;
- }
-
- Stack attributeValueEntityStack = new Stack ();
-
- private void ValidateAttributes (DTDAttListDeclaration decl, bool validate)
- {
- DtdValidateAttributes (decl, validate);
-
- foreach (string attr in attributes)
- if (attr == "xmlns" ||
- String.CompareOrdinal (attr, 0, "xmlns:", 0, 6) == 0)
- nsmgr.AddNamespace (
- attr == "xmlns" ? String.Empty : (string) attributeLocalNames [attr],
- (string) attributeValues [attr]);
-
- foreach (string attr in attributes) {
- string prefix = attr == "xmlns" ? "xmlns" : attributePrefixes [attr] as string;
- if (prefix == String.Empty)
- attributeNamespaces.Add (attr, String.Empty);
- else
- attributeNamespaces.Add (attr, LookupNamespace (prefix));
- }
- }
-
- private void DtdValidateAttributes (DTDAttListDeclaration decl, bool validate)
- {
- while (reader.MoveToNextAttribute ()) {
- string attrName = reader.Name;
- this.currentAttribute = attrName;
- attributes.Add (attrName);
- attributeLocalNames.Add (attrName, reader.LocalName);
- attributePrefixes.Add (attrName, reader.Prefix);
- XmlReader targetReader = reader;
- string attrValue = null;
- // It always resolves entity references on attributes (documented as such).
-// if (currentEntityHandling == EntityHandling.ExpandCharEntities)
-// attrValue = reader.Value;
-// else
- {
- while (attributeValueEntityStack.Count >= 0) {
- if (!targetReader.ReadAttributeValue ()) {
- if (attributeValueEntityStack.Count > 0) {
- targetReader = attributeValueEntityStack.Pop () as XmlReader;
- continue;
- } else
- break;
- }
- switch (targetReader.NodeType) {
- case XmlNodeType.EntityReference:
- DTDEntityDeclaration edecl = DTD.EntityDecls [targetReader.Name];
- if (edecl == null) {
- HandleError (String.Format ("Referenced entity {0} is not declared.", targetReader.Name),
- XmlSeverityType.Error);
- } else {
- XmlTextReader etr = new XmlTextReader (edecl.EntityValue, XmlNodeType.Attribute, ParserContext);
- attributeValueEntityStack.Push (targetReader);
- targetReader = etr;
- continue;
- }
- break;
- case XmlNodeType.EndEntity:
- break;
- default:
- if (attrValue != null) {
- valueBuilder.Append (attrValue);
- attrValue = null;
- }
-
- if (valueBuilder.Length != 0)
- valueBuilder.Append (targetReader.Value);
- else
- attrValue = targetReader.Value;
-
- break;
- }
- }
-
- if (attrValue == null) {
- attrValue = valueBuilder.ToString ();
- valueBuilder.Length = 0;
- }
- }
- reader.MoveToElement ();
- reader.MoveToAttribute (attrName);
- attributeValues.Add (attrName, attrValue);
-
- if (!validate)
- continue;
-
- // Validation
-
- DTDAttributeDefinition def = decl [reader.Name];
- if (def == null) {
- HandleError (String.Format ("Attribute {0} is not declared.", reader.Name),
- XmlSeverityType.Error);
- continue;
- }
-
- // check enumeration constraint
- if (def.EnumeratedAttributeDeclaration.Count > 0)
- if (!def.EnumeratedAttributeDeclaration.Contains (
- FilterNormalization (reader.Name, attrValue)))
- HandleError (String.Format ("Attribute enumeration constraint error in attribute {0}, value {1}.",
- reader.Name, attrValue), XmlSeverityType.Error);
- if (def.EnumeratedNotations.Count > 0)
- if (!def.EnumeratedNotations.Contains (
- FilterNormalization (reader.Name, attrValue)))
- HandleError (String.Format ("Attribute notation enumeration constraint error in attribute {0}, value {1}.",
- reader.Name, attrValue), XmlSeverityType.Error);
-
- // check type constraint
- string normalized = null;
- if (def.Datatype != null)
- normalized = FilterNormalization (def.Name, attrValue);
- else
- normalized = attrValue;
- DTDEntityDeclaration ent;
-
- // Common process to get list value
- string [] list = null;
- switch (def.Datatype.TokenizedType) {
- case XmlTokenizedType.IDREFS:
- case XmlTokenizedType.ENTITIES:
- case XmlTokenizedType.NMTOKENS:
- try {
- list = def.Datatype.ParseValue (normalized, NameTable, null) as string [];
- } catch (Exception) {
- HandleError ("Attribute value is invalid against its data type.", XmlSeverityType.Error);
- list = new string [0];
- }
- break;
- default:
- try {
- def.Datatype.ParseValue (normalized, NameTable, null);
- } catch (Exception ex) {
- HandleError (String.Format ("Attribute value is invalid against its data type '{0}'. {1}", def.Datatype, ex.Message), XmlSeverityType.Error);
- }
- break;
- }
-
- switch (def.Datatype.TokenizedType) {
- case XmlTokenizedType.ID:
- if (this.idList.Contains (normalized)) {
- HandleError (String.Format ("Node with ID {0} was already appeared.", attrValue),
- XmlSeverityType.Error);
- } else {
- if (missingIDReferences.Contains (normalized))
- missingIDReferences.Remove (normalized);
- idList.Add (normalized);
- }
- break;
- case XmlTokenizedType.IDREF:
- if (!idList.Contains (normalized))
- missingIDReferences.Add (normalized);
- break;
- case XmlTokenizedType.IDREFS:
- for (int i = 0; i < list.Length; i++) {
- string idref = list [i];
- if (!idList.Contains (idref))
- missingIDReferences.Add (idref);
- }
- break;
- case XmlTokenizedType.ENTITY:
- ent = dtd.EntityDecls [normalized];
- if (ent == null)
- HandleError ("Reference to undeclared entity was found in attribute: " + reader.Name + ".", XmlSeverityType.Error);
- else if (ent.NotationName == null)
- HandleError ("The entity specified by entity type value must be an unparsed entity. The entity definition has no NDATA in attribute: " + reader.Name + ".", XmlSeverityType.Error);
- break;
- case XmlTokenizedType.ENTITIES:
- for (int i = 0; i < list.Length; i++) {
- string entref = list [i];
- ent = dtd.EntityDecls [FilterNormalization (reader.Name, entref)];
- if (ent == null)
- HandleError ("Reference to undeclared entity was found in attribute: " + reader.Name + ".", XmlSeverityType.Error);
- else if (ent.NotationName == null)
- HandleError ("The entity specified by ENTITIES type value must be an unparsed entity. The entity definition has no NDATA in attribute: " + reader.Name + ".", XmlSeverityType.Error);
- }
- break;
-// case XmlTokenizedType.NMTOKEN: nothing to do
-// case XmlTokenizedType.NMTOKENS: nothing to do
- }
-
- if (isStandalone && !def.IsInternalSubset &&
- attrValue != normalized)
- HandleError ("In standalone document, attribute value characters must not be checked against external definition.", XmlSeverityType.Error);
-
- if (def.OccurenceType ==
- DTDAttributeOccurenceType.Fixed &&
- attrValue != def.DefaultValue)
- HandleError (String.Format ("Fixed attribute {0} in element {1} has invalid value {2}.",
- def.Name, decl.Name, attrValue),
- XmlSeverityType.Error);
- }
-
- if (validate)
- VerifyDeclaredAttributes (decl);
-
- MoveToElement ();
- }
-
- private void VerifyDeclaredAttributes (DTDAttListDeclaration decl)
- {
- // Check if all required attributes exist, and/or
- // if there is default values, then add them.
- for (int i = 0; i < decl.Definitions.Count; i++) {
- DTDAttributeDefinition def = (DTDAttributeDefinition) decl.Definitions [i];
- if (attributes.Contains (def.Name))
- continue;
-
- if (def.OccurenceType == DTDAttributeOccurenceType.Required) {
- HandleError (String.Format ("Required attribute {0} in element {1} not found .",
- def.Name, decl.Name),
- XmlSeverityType.Error);
- continue;
- }
-
- else if (def.DefaultValue == null)
- continue;
-
- if (this.isStandalone && !def.IsInternalSubset)
- HandleError ("In standalone document, external default value definition must not be applied.", XmlSeverityType.Error);
-
- switch (validatingReader.ValidationType) {
- case ValidationType.Auto:
- if (validatingReader.Schemas.Count == 0)
- goto case ValidationType.DTD;
- break;
- case ValidationType.DTD:
- case ValidationType.None:
- // Other than them, ignore DTD defaults.
- attributes.Add (def.Name);
- int colonAt = def.Name.IndexOf (':');
- attributeLocalNames.Add (def.Name,
- colonAt < 0 ? def.Name :
- def.Name.Substring (colonAt + 1));
- string prefix = colonAt < 0 ?
- String.Empty :
- def.Name.Substring (0, colonAt);
- attributePrefixes.Add (def.Name, prefix);
- attributeValues.Add (def.Name, def.DefaultValue);
- break;
- }
- }
- }
-
-#if NET_2_1
- internal
-#else
- public
-#endif
- override bool ReadAttributeValue ()
- {
- if (consumedAttribute)
- return false;
- if (NodeType == XmlNodeType.Attribute &&
- currentEntityHandling == EntityHandling.ExpandEntities) {
- consumedAttribute = true;
- return true;
- }
- else if (IsDefault) {
- consumedAttribute = true;
- return true;
- }
- else
- return reader.ReadAttributeValue ();
- }
-
-#if NET_2_1
- internal
-#else
- public
-#endif
- override void ResolveEntity ()
- {
- if (resolver == null)
- return;
-
- // "reader." is required since NodeType must not be entityref by nature.
- if (reader.NodeType != XmlNodeType.EntityReference)
- throw new InvalidOperationException ("The current node is not an Entity Reference");
- DTDEntityDeclaration entity = DTD != null ? DTD.EntityDecls [reader.Name] as DTDEntityDeclaration : null;
-
- XmlNodeType xmlReaderNodeType =
- (currentAttribute != null) ? XmlNodeType.Attribute : XmlNodeType.Element;
-
-#if NET_2_0
- if (entity == null)
- throw NotWFError (String.Format ("Reference to undeclared entity '{0}'.", reader.Name));
-#endif
-
- // MS.NET 1.x ignores undeclared entity reference here..
- if (entity != null && entity.SystemId != null) {
- Uri baseUri = entity.BaseURI == String.Empty ? null : new Uri (entity.BaseURI);
- Stream stream = resolver.GetEntity (resolver.ResolveUri (baseUri, entity.SystemId), null, typeof (Stream)) as Stream;
- nextEntityReader = new XmlTextReader (stream, xmlReaderNodeType, ParserContext);
- } else {
- string replacementText =
- (entity != null) ? entity.EntityValue : String.Empty;
- nextEntityReader = new XmlTextReader (replacementText, xmlReaderNodeType, ParserContext);
- }
- nextEntityReader.XmlResolver = resolver;
- }
-
- public override int AttributeCount {
- get {
- if (currentTextValue != null)
- return 0;
-
- if (dtd == null || !insideContent)
- return reader.AttributeCount;
-
- return attributes.Count;
- }
- }
-
- public override string BaseURI {
- get {
- return reader.BaseURI;
- }
- }
-
- public override bool CanResolveEntity {
- get { return true; }
- }
-
- public override int Depth {
- get {
- int baseNum = reader.Depth;
- if (entityReaderDepthStack.Count > 0) {
- baseNum += (int) entityReaderDepthStack.Peek ();
- if (NodeType != XmlNodeType.EndEntity)
- baseNum++;
- }
- if (currentTextValue != null && reader.NodeType == XmlNodeType.EndElement)
- baseNum++;
-
- return IsDefault ? baseNum + 1 : baseNum;
- }
- }
-
- public override bool EOF {
- get { return reader.EOF && entityReaderStack.Count == 0; }
- }
-
-#if NET_2_1
- internal
-#else
- public
-#endif
- override bool HasValue {
- get {
- return IsDefault ? true :
- currentTextValue != null ? true :
- reader.HasValue; }
- }
-
- public override bool IsDefault {
- get {
- if (currentTextValue != null)
- return false;
- if (currentAttribute == null)
- return false;
- return reader.GetAttribute (currentAttribute) == null;
- }
- }
-
- public override bool IsEmptyElement {
- get {
- if (currentTextValue != null)
- return false;
- return reader.IsEmptyElement;
- }
- }
-
- public override string this [int i] {
- get { return GetAttribute (i); }
- }
-
- public override string this [string name] {
- get { return GetAttribute (name); }
- }
-
- public override string this [string name, string ns] {
- get { return GetAttribute (name, ns); }
- }
-
- public int LineNumber {
- get {
- IXmlLineInfo info = reader as IXmlLineInfo;
- return (info != null) ? info.LineNumber : 0;
- }
- }
-
- public int LinePosition {
- get {
- IXmlLineInfo info = reader as IXmlLineInfo;
- return (info != null) ? info.LinePosition : 0;
- }
- }
-
- public override string LocalName {
- get {
- if (currentTextValue != null || consumedAttribute)
- return String.Empty;
- if (entityReaderStack.Count > 0 && reader.EOF)
- return ((XmlReader) entityReaderStack.Peek ()).LocalName; // name of EndEntity
- else if (NodeType == XmlNodeType.Attribute)
- return (string) attributeLocalNames [currentAttribute];
- else
- return reader.LocalName;
- }
- }
-
- public override string Name {
- get {
- if (currentTextValue != null || consumedAttribute)
- return String.Empty;
- if (entityReaderStack.Count > 0 && reader.EOF)
- return ((XmlReader) entityReaderStack.Peek ()).Name; // name of EndEntity
- else if (NodeType == XmlNodeType.Attribute)
- return currentAttribute;
- else
- return reader.Name;
- }
- }
-
- public override string NamespaceURI {
- get {
- if (currentTextValue != null || consumedAttribute)
- return String.Empty;
- switch (NodeType) {
- case XmlNodeType.Attribute:
- return (string) attributeNamespaces [currentAttribute];
- case XmlNodeType.Element:
- case XmlNodeType.EndElement:
- return nsmgr.LookupNamespace (Prefix);
- default:
- return String.Empty;
- }
- }
- }
-
- public override XmlNameTable NameTable {
- get { return reader.NameTable; }
- }
-
- public override XmlNodeType NodeType {
- get {
- if (currentTextValue != null)
- return isSignificantWhitespace ? XmlNodeType.SignificantWhitespace :
- isWhitespace ? XmlNodeType.Whitespace :
- XmlNodeType.Text;
-
- if (entityReaderStack.Count > 0 && reader.EOF)
- return XmlNodeType.EndEntity;
-
- // If consumedAttribute is true, then entities must be resolved.
- return consumedAttribute ? XmlNodeType.Text :
- IsDefault ? XmlNodeType.Attribute :
- reader.NodeType;
- }
- }
-
- public XmlParserContext ParserContext {
- get { return XmlSchemaUtil.GetParserContext (reader); }
- }
-
- public override string Prefix {
- get {
- if (currentTextValue != null || consumedAttribute)
- return String.Empty;
- else if (NodeType == XmlNodeType.Attribute)
- return (string) attributePrefixes [currentAttribute];
- else
- return reader.Prefix;
- }
- }
-
- public override char QuoteChar {
- get {
- // If it is not actually on an attribute, then it returns
- // undefined value or '"'.
- return reader.QuoteChar;
- }
- }
-
- public override ReadState ReadState {
- get {
- if (reader.ReadState == ReadState.EndOfFile && currentTextValue != null)
- return ReadState.Interactive;
- return reader.ReadState;
- }
- }
-
- public object SchemaType {
- get {
- if (currentElement == null)
- return null;
- DTDAttListDeclaration decl =
- DTD.AttListDecls [currentElement];
- DTDAttributeDefinition def =
- decl != null ? decl [currentAttribute] : null;
- return def != null ? def.Datatype : null;
- }
- }
-
- char [] whitespaceChars = new char [] {' '};
- private string FilterNormalization (string attrName, string rawValue)
- {
- if (DTD == null || NodeType != XmlNodeType.Attribute ||
- sourceTextReader == null ||
- !sourceTextReader.Normalization)
- return rawValue;
-
- DTDAttributeDefinition def =
- dtd.AttListDecls [currentElement].Get (attrName);
- valueBuilder.Append (rawValue);
- valueBuilder.Replace ('\r', ' ');
- valueBuilder.Replace ('\n', ' ');
- valueBuilder.Replace ('\t', ' ');
- try {
- if (def.Datatype.TokenizedType == XmlTokenizedType.CDATA)
- return valueBuilder.ToString ();
-
- for (int i=0; i < valueBuilder.Length; i++) {
- if (valueBuilder [i] != ' ')
- continue;
- while (++i < valueBuilder.Length && valueBuilder [i] == ' ')
- valueBuilder.Remove (i, 1);
- }
- return valueBuilder.ToString ().Trim (whitespaceChars);
- } finally {
- valueBuilder.Length = 0;
- }
- }
-
- public override string Value {
- get {
- if (currentTextValue != null)
- return currentTextValue;
- // As to this property, MS.NET seems ignorant of EntityHandling...
- else if (NodeType == XmlNodeType.Attribute
- // It also covers default attribute text.
- || consumedAttribute)
- return FilterNormalization (Name, (string) attributeValues [currentAttribute]);
- else
- return FilterNormalization (Name, reader.Value);
- }
- }
-
- public override string XmlLang {
- get {
- string val = this ["xml:lang"];
- return val != null ? val : reader.XmlLang;
- }
- }
-
- public XmlResolver XmlResolver {
- set {
- resolver = value;
- }
- }
-
- public override XmlSpace XmlSpace {
- get {
- string val = this ["xml:space"];
- switch (val) {
- case "preserve":
- return XmlSpace.Preserve;
- case "default":
- return XmlSpace.Default;
- default:
- return reader.XmlSpace;
- }
- }
- }
-
- }
-}
projects / mono.git / commitdiff