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//------------------------------------------------------------------------------
// <copyright file="Preprocessor.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml.Schema {
using System.Collections;
using System.IO;
using System.Threading;
using System.Diagnostics;
using System.Collections.Generic;
using System.Runtime.Versioning;
internal enum Compositor {
Root,
Include,
Import,
Redefine
};
class RedefineEntry {
internal XmlSchemaRedefine redefine;
internal XmlSchema schemaToUpdate;
public RedefineEntry(XmlSchemaRedefine external, XmlSchema schema) {
redefine = external;
schemaToUpdate = schema;
}
}
internal sealed class Preprocessor : BaseProcessor {
string Xmlns;
string NsXsi;
string targetNamespace;
XmlSchema rootSchema;
XmlSchema currentSchema;
XmlSchemaForm elementFormDefault;
XmlSchemaForm attributeFormDefault;
XmlSchemaDerivationMethod blockDefault;
XmlSchemaDerivationMethod finalDefault;
/*Dictionary<Uri, XmlSchema> schemaLocations;
Dictionary<ChameleonKey, XmlSchema> chameleonSchemas;*/
Hashtable schemaLocations;
Hashtable chameleonSchemas;
Hashtable referenceNamespaces;
Hashtable processedExternals;
SortedList lockList;
XmlReaderSettings readerSettings;
//For redefines
XmlSchema rootSchemaForRedefine = null;
ArrayList redefinedList;
static XmlSchema builtInSchemaForXmlNS;
const XmlSchemaDerivationMethod schemaBlockDefaultAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension | XmlSchemaDerivationMethod.Substitution;
const XmlSchemaDerivationMethod schemaFinalDefaultAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension | XmlSchemaDerivationMethod.List | XmlSchemaDerivationMethod.Union;
const XmlSchemaDerivationMethod elementBlockAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension | XmlSchemaDerivationMethod.Substitution;
const XmlSchemaDerivationMethod elementFinalAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension;
const XmlSchemaDerivationMethod simpleTypeFinalAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension | XmlSchemaDerivationMethod.List | XmlSchemaDerivationMethod.Union;
const XmlSchemaDerivationMethod complexTypeBlockAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension;
const XmlSchemaDerivationMethod complexTypeFinalAllowed = XmlSchemaDerivationMethod.Restriction | XmlSchemaDerivationMethod.Extension;
private XmlResolver xmlResolver = null;
public Preprocessor(XmlNameTable nameTable, SchemaNames schemaNames, ValidationEventHandler eventHandler)
: this(nameTable, schemaNames, eventHandler, new XmlSchemaCompilationSettings()){}
public Preprocessor(XmlNameTable nameTable, SchemaNames schemaNames, ValidationEventHandler eventHandler, XmlSchemaCompilationSettings compilationSettings)
: base(nameTable, schemaNames, eventHandler, compilationSettings) {
referenceNamespaces = new Hashtable();
processedExternals = new Hashtable();
lockList = new SortedList();
}
public bool Execute(XmlSchema schema, string targetNamespace, bool loadExternals) {
rootSchema = schema; //Need to lock main schema here
Xmlns = NameTable.Add("xmlns");
NsXsi = NameTable.Add(XmlReservedNs.NsXsi);
rootSchema.ImportedSchemas.Clear();
rootSchema.ImportedNamespaces.Clear();
//Add root schema to the schemaLocations table
if (rootSchema.BaseUri != null) {
if (schemaLocations[rootSchema.BaseUri] == null) {
schemaLocations.Add(rootSchema.BaseUri, rootSchema);
}
}
//Check targetNamespace for rootSchema
if (rootSchema.TargetNamespace != null) {
if (targetNamespace == null) {
targetNamespace = rootSchema.TargetNamespace;
}
else if (targetNamespace != rootSchema.TargetNamespace) {
SendValidationEvent(Res.Sch_MismatchTargetNamespaceEx, targetNamespace, rootSchema.TargetNamespace, rootSchema);
}
}
else if (targetNamespace != null && targetNamespace.Length != 0) { //if schema.TargetNamespace == null & targetNamespace != null, we will force the schema components into targetNamespace
rootSchema = GetChameleonSchema(targetNamespace, rootSchema); //Chameleon include at top-level
}
if (loadExternals && xmlResolver != null) {
LoadExternals(rootSchema);
}
BuildSchemaList(rootSchema);
int schemaIndex = 0;
XmlSchema listSchema;
try {
//Accquire locks on all schema objects; Need to lock only on pre-created schemas and not parsed schemas
for (schemaIndex = 0; schemaIndex < lockList.Count; schemaIndex++) {
listSchema = (XmlSchema)lockList.GetByIndex(schemaIndex);
#pragma warning disable 0618
//@
Monitor.Enter(listSchema);
#pragma warning restore 0618
listSchema.IsProcessing = false; //Reset processing flag from LoadExternals
}
//Preprocess
rootSchemaForRedefine = rootSchema;
Preprocess(rootSchema, targetNamespace, rootSchema.ImportedSchemas);
if (redefinedList != null) { //If there were redefines
for (int i = 0; i < redefinedList.Count; ++i) {
PreprocessRedefine((RedefineEntry)redefinedList[i]);
}
}
}
finally { //Releasing locks in finally block
if (schemaIndex == lockList.Count) {
schemaIndex--;
}
for (int i = schemaIndex; schemaIndex >= 0; schemaIndex--) {
listSchema = (XmlSchema)lockList.GetByIndex(schemaIndex);
listSchema.IsProcessing = false; //Reset processing flag from Preprocess
if (listSchema == Preprocessor.GetBuildInSchema()) { //dont re-set compiled flags for xml namespace schema
Monitor.Exit(listSchema);
continue;
}
listSchema.IsCompiledBySet = false;
listSchema.IsPreprocessed = !HasErrors;
Monitor.Exit(listSchema); //Release locks on all schema objects
}
}
rootSchema.IsPreprocessed = !HasErrors; //For chameleon at top-level
return !HasErrors;
}
private void Cleanup(XmlSchema schema) {
if (schema == Preprocessor.GetBuildInSchema()) {
return;
}
schema.Attributes.Clear();
schema.AttributeGroups.Clear();
schema.SchemaTypes.Clear();
schema.Elements.Clear();
schema.Groups.Clear();
schema.Notations.Clear();
schema.Ids.Clear();
schema.IdentityConstraints.Clear();
schema.IsRedefined = false;
schema.IsCompiledBySet = false;
}
private void CleanupRedefine(XmlSchemaExternal include) {
XmlSchemaRedefine rdef = include as XmlSchemaRedefine;
rdef.AttributeGroups.Clear();
rdef.Groups.Clear();
rdef.SchemaTypes.Clear();
}
internal XmlResolver XmlResolver {
set {
xmlResolver = value;
}
}
internal XmlReaderSettings ReaderSettings {
get {
if (readerSettings == null) {
readerSettings = new XmlReaderSettings();
readerSettings.DtdProcessing = DtdProcessing.Prohibit;
}
return readerSettings;
}
set {
readerSettings = value;
}
}
//internal Dictionary<Uri, XmlSchema> SchemaLocations {
internal Hashtable SchemaLocations {
set {
schemaLocations = value;
}
}
//internal Dictionary<ChameleonKey, XmlSchema> ChameleonSchemas {
internal Hashtable ChameleonSchemas {
set {
chameleonSchemas = value;
}
}
internal XmlSchema RootSchema {
get {
return rootSchema; //This is required to get back a cloned chameleon
}
}
private void BuildSchemaList(XmlSchema schema) {
if (lockList.Contains(schema.SchemaId)) {
return;
}
lockList.Add(schema.SchemaId, schema);
for (int i = 0; i < schema.Includes.Count; ++i) {
XmlSchemaExternal ext = (XmlSchemaExternal)schema.Includes[i];
if (ext.Schema != null) {
BuildSchemaList(ext.Schema);
}
}
}
// SxS: This method uses resource names read from source document and does not expose any resources to the caller.
// It's OK to suppress the SxS warning.
[ResourceConsumption(ResourceScope.Machine, ResourceScope.Machine)]
[ResourceExposure(ResourceScope.None)]
private void LoadExternals(XmlSchema schema) {
if (schema.IsProcessing) {
return;
}
schema.IsProcessing = true;
for (int i = 0; i < schema.Includes.Count; ++i) {
Uri includeLocation = null;
//CASE 1: If the Schema object of the include has been set
XmlSchemaExternal include = (XmlSchemaExternal)schema.Includes[i];
XmlSchema includedSchema = include.Schema;
if (includedSchema != null) {
// already loaded
includeLocation = includedSchema.BaseUri;
if (includeLocation != null && schemaLocations[includeLocation] == null) {
schemaLocations.Add(includeLocation, includedSchema);
}
LoadExternals(includedSchema);
continue;
}
//CASE 2: Try & Parse schema from the provided location
string schemaLocation = include.SchemaLocation;
Uri ruri = null;
Exception innerException = null;
if (schemaLocation != null) {
try {
ruri = ResolveSchemaLocationUri(schema, schemaLocation);
}
catch(Exception e) {
ruri = null;
innerException = e;
}
}
if (include.Compositor == Compositor.Import) {
XmlSchemaImport import = include as XmlSchemaImport;
Debug.Assert(import != null);
string importNS = import.Namespace != null ? import.Namespace : string.Empty;
if (!schema.ImportedNamespaces.Contains(importNS)) {
schema.ImportedNamespaces.Add(importNS);
}
//CASE 2.1: If the imported namespace is the XML namespace,
// If the parent schemaSet already has schema for XML ns loaded, use that
// Else if the location is null use the built-in one
// else go through regular processing of parsing from location
if (importNS == XmlReservedNs.NsXml) {
if (ruri == null) { //Resolved location is null, hence get the built-in one
include.Schema = Preprocessor.GetBuildInSchema();
continue;
}
}
}
//CASE 3: Parse schema from the provided location
if (ruri == null) {
if (schemaLocation != null) {
SendValidationEvent(new XmlSchemaException(Res.Sch_InvalidIncludeLocation, null, innerException, include.SourceUri, include.LineNumber, include.LinePosition, include), XmlSeverityType.Warning);
}
continue;
}
if (schemaLocations[ruri] == null) { // Only if location already not processed
object obj = null;
try {
obj = GetSchemaEntity(ruri);
}
catch(Exception eInner) {
innerException = eInner;
obj = null;
}
if (obj != null) {
include.BaseUri = ruri;
Type returnType = obj.GetType();
if (typeof(XmlSchema).IsAssignableFrom(returnType)) { //To handle XmlSchema and all its derived types
include.Schema = (XmlSchema)obj;
schemaLocations.Add(ruri, include.Schema);
LoadExternals(include.Schema);
}
else {
XmlReader reader = null;
if (returnType.IsSubclassOf(typeof(Stream)) ) {
readerSettings.CloseInput = true;
readerSettings.XmlResolver = xmlResolver;
reader = XmlReader.Create((Stream)obj, readerSettings, ruri.ToString() );
}
else if (returnType.IsSubclassOf(typeof(XmlReader)) ) {
reader = (XmlReader)obj;
}
else if (returnType.IsSubclassOf(typeof(TextReader))) {
readerSettings.CloseInput = true;
readerSettings.XmlResolver = xmlResolver;
reader = XmlReader.Create((TextReader)obj, readerSettings, ruri.ToString() );
}
if (reader == null) {
SendValidationEvent(Res.Sch_InvalidIncludeLocation, include, XmlSeverityType.Warning);
continue;
}
try {
Parser parser = new Parser(SchemaType.XSD, NameTable, SchemaNames, EventHandler);
parser.Parse(reader, null);
while(reader.Read());// wellformness check
includedSchema = parser.XmlSchema;
include.Schema = includedSchema;
schemaLocations.Add(ruri, includedSchema);
LoadExternals(includedSchema);
}
catch(XmlSchemaException e) {
SendValidationEvent(Res.Sch_CannotLoadSchemaLocation, schemaLocation, e.Message, e.SourceUri, e.LineNumber, e.LinePosition);
}
catch(Exception eInner) {
SendValidationEvent(new XmlSchemaException(Res.Sch_InvalidIncludeLocation, null, eInner, include.SourceUri, include.LineNumber, include.LinePosition, include), XmlSeverityType.Warning);
}
finally {
reader.Close();
}
}
}
else {
SendValidationEvent(new XmlSchemaException(Res.Sch_InvalidIncludeLocation, null, innerException, include.SourceUri, include.LineNumber, include.LinePosition, include), XmlSeverityType.Warning);
}
}
else { //Location already in table and now seeing duplicate import / include
include.Schema = (XmlSchema)schemaLocations[ruri]; //Set schema object even for duplicates
}
}
}
internal static XmlSchema GetBuildInSchema() {
if (builtInSchemaForXmlNS == null) {
XmlSchema tempSchema = new XmlSchema();
tempSchema.TargetNamespace = XmlReservedNs.NsXml;
tempSchema.Namespaces.Add("xml", XmlReservedNs.NsXml);
XmlSchemaAttribute lang = new XmlSchemaAttribute();
lang.Name = "lang";
lang.SchemaTypeName = new XmlQualifiedName("language", XmlReservedNs.NsXs);
tempSchema.Items.Add(lang);
XmlSchemaAttribute xmlbase = new XmlSchemaAttribute();
xmlbase.Name = "base";
xmlbase.SchemaTypeName = new XmlQualifiedName("anyURI", XmlReservedNs.NsXs);
tempSchema.Items.Add(xmlbase);
XmlSchemaAttribute space = new XmlSchemaAttribute();
space.Name = "space";
XmlSchemaSimpleType type = new XmlSchemaSimpleType();
XmlSchemaSimpleTypeRestriction r = new XmlSchemaSimpleTypeRestriction();
r.BaseTypeName = new XmlQualifiedName("NCName", XmlReservedNs.NsXs);
XmlSchemaEnumerationFacet space_default = new XmlSchemaEnumerationFacet();
space_default.Value = "default";
r.Facets.Add(space_default);
XmlSchemaEnumerationFacet space_preserve = new XmlSchemaEnumerationFacet();
space_preserve.Value = "preserve";
r.Facets.Add(space_preserve);
type.Content = r;
space.SchemaType = type;
space.DefaultValue = "preserve";
tempSchema.Items.Add(space);
XmlSchemaAttributeGroup attributeGroup = new XmlSchemaAttributeGroup();
attributeGroup.Name = "specialAttrs";
XmlSchemaAttribute langRef = new XmlSchemaAttribute();
langRef.RefName = new XmlQualifiedName("lang", XmlReservedNs.NsXml);
attributeGroup.Attributes.Add(langRef);
XmlSchemaAttribute spaceRef = new XmlSchemaAttribute();
spaceRef.RefName = new XmlQualifiedName("space", XmlReservedNs.NsXml);
attributeGroup.Attributes.Add(spaceRef);
XmlSchemaAttribute baseRef = new XmlSchemaAttribute();
baseRef.RefName = new XmlQualifiedName("base", XmlReservedNs.NsXml);
attributeGroup.Attributes.Add(baseRef);
tempSchema.Items.Add(attributeGroup);
tempSchema.IsPreprocessed = true;
tempSchema.CompileSchemaInSet(new NameTable(), null, null); //compile built-in schema
Interlocked.CompareExchange<XmlSchema>(ref builtInSchemaForXmlNS, tempSchema, null);
}
return builtInSchemaForXmlNS;
}
private void BuildRefNamespaces(XmlSchema schema) {
referenceNamespaces.Clear();
XmlSchemaImport import;
string ns;
//Add XSD namespace
referenceNamespaces.Add(XmlReservedNs.NsXs,XmlReservedNs.NsXs);
for (int i = 0; i < schema.Includes.Count; ++i) {
XmlSchemaExternal include = (XmlSchemaExternal)schema.Includes[i];
if(include is XmlSchemaImport) {
import = include as XmlSchemaImport;
ns = import.Namespace;
if (ns == null) {
ns = string.Empty;
}
if(referenceNamespaces[ns] == null)
referenceNamespaces.Add(ns,ns);
}
}
//Add the schema's targetnamespace
string tns = schema.TargetNamespace;
if (tns == null) {
tns = string.Empty;
}
if(referenceNamespaces[tns] == null) {
referenceNamespaces.Add(tns,tns);
}
}
private void ParseUri(string uri, string code, XmlSchemaObject sourceSchemaObject) {
try {
XmlConvert.ToUri(uri); // can throw
}
catch (FormatException eInner) {
SendValidationEvent(code, new string[] { uri }, eInner, sourceSchemaObject);
}
}
private void Preprocess(XmlSchema schema, string targetNamespace, ArrayList imports) {
XmlSchema prevRootSchemaForRedefine = null;
if (schema.IsProcessing) {
return;
}
schema.IsProcessing = true;
string tns = schema.TargetNamespace;
if (tns != null) {
schema.TargetNamespace = tns = NameTable.Add(tns);
if (tns.Length == 0) {
SendValidationEvent(Res.Sch_InvalidTargetNamespaceAttribute, schema);
}
else {
ParseUri(tns, Res.Sch_InvalidNamespace, schema);
}
}
if (schema.Version != null) {
XmlSchemaDatatype tokenDt = DatatypeImplementation.GetSimpleTypeFromTypeCode(XmlTypeCode.Token).Datatype;
object version;
Exception exception = tokenDt.TryParseValue(schema.Version, null, null, out version);
if (exception != null) {
SendValidationEvent(Res.Sch_AttributeValueDataTypeDetailed, new string[] { "version", schema.Version, tokenDt.TypeCodeString, exception.Message }, exception, schema);
}
else {
schema.Version = (string)version;
}
}
//Begin processing the schema after checking targetNamespace and verifying chameleon
Cleanup(schema);
for (int i = 0; i < schema.Includes.Count; ++i) {
XmlSchemaExternal include = (XmlSchemaExternal)schema.Includes[i];
XmlSchema externalSchema = include.Schema;
SetParent(include, schema);
PreprocessAnnotation(include);
string loc = include.SchemaLocation;
if (loc != null) {
ParseUri(loc, Res.Sch_InvalidSchemaLocation, include);
}
else if ((include.Compositor == Compositor.Include || include.Compositor == Compositor.Redefine) && externalSchema == null){
SendValidationEvent(Res.Sch_MissRequiredAttribute, "schemaLocation", include);
}
switch (include.Compositor) {
case Compositor.Import:
XmlSchemaImport import = include as XmlSchemaImport;
string importNS = import.Namespace;
if (importNS == schema.TargetNamespace) {
SendValidationEvent(Res.Sch_ImportTargetNamespace, include);
}
if (externalSchema != null) {
if (importNS != externalSchema.TargetNamespace) {
SendValidationEvent(Res.Sch_MismatchTargetNamespaceImport, importNS, externalSchema.TargetNamespace, import);
}
//SetParent(externalSchema, import);
prevRootSchemaForRedefine = rootSchemaForRedefine;
rootSchemaForRedefine = externalSchema; //Make the imported schema the root schema for redefines
Preprocess(externalSchema, importNS, imports);
rootSchemaForRedefine = prevRootSchemaForRedefine; //Reset the root schema for redefines
}
else {
if (importNS != null) {
if (importNS.Length == 0) {
SendValidationEvent(Res.Sch_InvalidNamespaceAttribute, importNS, include);
}
else {
ParseUri(importNS, Res.Sch_InvalidNamespace, include);
}
}
}
break;
case Compositor.Include:
XmlSchema includedSchema = include.Schema;
if (includedSchema != null) {
//SetParent(includedSchema, include);
goto default;
}
break;
case Compositor.Redefine:
if (externalSchema != null) {
//SetParent(externalSchema, include);
CleanupRedefine(include);
goto default;
}
break;
default: //For include, redefine common case
if (externalSchema.TargetNamespace != null) {
if (schema.TargetNamespace != externalSchema.TargetNamespace) { //namespaces for includes should be the same
SendValidationEvent(Res.Sch_MismatchTargetNamespaceInclude, externalSchema.TargetNamespace, schema.TargetNamespace, include);
}
}
else if (targetNamespace != null && targetNamespace.Length != 0) { //Chameleon redefine
externalSchema = GetChameleonSchema(targetNamespace, externalSchema);
include.Schema = externalSchema; //Reset the schema property to the cloned schema
}
Preprocess(externalSchema, schema.TargetNamespace, imports);
break;
}
}
//Begin processing the current schema passed to preprocess
//Build the namespaces that can be referenced in the current schema
this.currentSchema = schema;
BuildRefNamespaces(schema);
ValidateIdAttribute(schema);
this.targetNamespace = targetNamespace == null ? string.Empty : targetNamespace;
SetSchemaDefaults(schema);
processedExternals.Clear();
XmlSchemaExternal external;
for (int i = 0; i < schema.Includes.Count; i++) {
external = (XmlSchemaExternal) schema.Includes[i];
XmlSchema includedSchema = external.Schema;
if (includedSchema != null) {
switch (external.Compositor) {
case Compositor.Include:
if (processedExternals[includedSchema] != null) {
continue; //Already processed this included schema;
}
processedExternals.Add(includedSchema, external);
CopyIncludedComponents(includedSchema, schema);
break;
case Compositor.Redefine:
if (redefinedList == null) {
redefinedList = new ArrayList();
}
redefinedList.Add(new RedefineEntry(external as XmlSchemaRedefine, rootSchemaForRedefine));
if (processedExternals[includedSchema] != null) {
continue; //Already processed this included schema;
}
processedExternals.Add(includedSchema, external);
CopyIncludedComponents(includedSchema, schema);
break;
case Compositor.Import:
if (includedSchema != rootSchema) {
XmlSchemaImport import = external as XmlSchemaImport;
string importNS = import.Namespace != null ? import.Namespace : string.Empty;
if (!imports.Contains(includedSchema)) { //
imports.Add(includedSchema);
}
if (!rootSchema.ImportedNamespaces.Contains(importNS)) {
rootSchema.ImportedNamespaces.Add(importNS);
}
}
break;
default:
Debug.Assert(false);
break;
}
}
else if (external.Compositor == Compositor.Redefine) {
XmlSchemaRedefine redefine = external as XmlSchemaRedefine;
if (redefine.BaseUri == null) {
for (int j = 0; j < redefine.Items.Count; ++j) {
if (!(redefine.Items[j] is XmlSchemaAnnotation)) {
SendValidationEvent(Res.Sch_RedefineNoSchema, redefine);
break;
}
}
}
}
ValidateIdAttribute(external);
}
List<XmlSchemaObject> removeItemsList = new List<XmlSchemaObject>();
XmlSchemaObjectCollection schemaItems = schema.Items;
for (int i = 0; i < schemaItems.Count; ++i) {
SetParent(schemaItems[i], schema);
XmlSchemaAttribute attribute = schemaItems[i] as XmlSchemaAttribute;
if (attribute != null) {
PreprocessAttribute(attribute);
AddToTable(schema.Attributes, attribute.QualifiedName, attribute);
}
else if (schemaItems[i] is XmlSchemaAttributeGroup) {
XmlSchemaAttributeGroup attributeGroup = (XmlSchemaAttributeGroup)schemaItems[i];
PreprocessAttributeGroup(attributeGroup);
AddToTable(schema.AttributeGroups, attributeGroup.QualifiedName, attributeGroup);
}
else if (schemaItems[i] is XmlSchemaComplexType) {
XmlSchemaComplexType complexType = (XmlSchemaComplexType)schemaItems[i];
PreprocessComplexType(complexType, false);
AddToTable(schema.SchemaTypes, complexType.QualifiedName, complexType);
}
else if (schemaItems[i] is XmlSchemaSimpleType) {
XmlSchemaSimpleType simpleType = (XmlSchemaSimpleType)schemaItems[i];
PreprocessSimpleType(simpleType, false);
AddToTable(schema.SchemaTypes, simpleType.QualifiedName, simpleType);
}
else if (schemaItems[i] is XmlSchemaElement) {
XmlSchemaElement element = (XmlSchemaElement)schemaItems[i];
PreprocessElement(element);
AddToTable(schema.Elements, element.QualifiedName, element);
}
else if (schemaItems[i] is XmlSchemaGroup) {
XmlSchemaGroup group = (XmlSchemaGroup)schemaItems[i];
PreprocessGroup(group);
AddToTable(schema.Groups, group.QualifiedName, group);
}
else if (schemaItems[i] is XmlSchemaNotation) {
XmlSchemaNotation notation = (XmlSchemaNotation)schemaItems[i];
PreprocessNotation(notation);
AddToTable(schema.Notations, notation.QualifiedName, notation);
}
else if (schemaItems[i] is XmlSchemaAnnotation) {
PreprocessAnnotation(schemaItems[i] as XmlSchemaAnnotation);
}
else {
SendValidationEvent(Res.Sch_InvalidCollection,(XmlSchemaObject)schemaItems[i]);
removeItemsList.Add(schemaItems[i]);
}
}
for (int i = 0; i < removeItemsList.Count; ++i) {
schema.Items.Remove(removeItemsList[i]);
}
}
private void CopyIncludedComponents(XmlSchema includedSchema, XmlSchema schema) {
foreach (XmlSchemaElement element in includedSchema.Elements.Values) {
AddToTable(schema.Elements, element.QualifiedName, element);
}
foreach (XmlSchemaAttribute attribute in includedSchema.Attributes.Values) {
AddToTable(schema.Attributes, attribute.QualifiedName, attribute);
}
foreach (XmlSchemaGroup group in includedSchema.Groups.Values) {
AddToTable(schema.Groups, group.QualifiedName, group);
}
foreach (XmlSchemaAttributeGroup attributeGroup in includedSchema.AttributeGroups.Values) {
AddToTable(schema.AttributeGroups, attributeGroup.QualifiedName, attributeGroup);
}
foreach (XmlSchemaType type in includedSchema.SchemaTypes.Values) {
AddToTable(schema.SchemaTypes, type.QualifiedName, type);
}
foreach (XmlSchemaNotation notation in includedSchema.Notations.Values) {
AddToTable(schema.Notations, notation.QualifiedName, notation);
}
}
private void PreprocessRedefine(RedefineEntry redefineEntry) {
XmlSchemaRedefine redefine = redefineEntry.redefine;
XmlSchema originalSchema = redefine.Schema;
currentSchema = GetParentSchema(redefine); //Set this for correct schema context in ValidateIdAttribute & ValidateQNameAttribute for redefines
Debug.Assert(currentSchema != null);
SetSchemaDefaults(currentSchema);
if (originalSchema.IsRedefined) {
SendValidationEvent(Res.Sch_MultipleRedefine, redefine, XmlSeverityType.Warning);
return;
}
originalSchema.IsRedefined = true;
XmlSchema schemaToUpdate = redefineEntry.schemaToUpdate;
ArrayList includesOfRedefine = new ArrayList();
GetIncludedSet(originalSchema, includesOfRedefine);
string targetNS = schemaToUpdate.TargetNamespace == null ? string.Empty : schemaToUpdate.TargetNamespace;
XmlSchemaObjectCollection items = redefine.Items;
for (int i = 0; i < items.Count; ++i) {
SetParent(items[i], redefine);
XmlSchemaGroup group = items[i] as XmlSchemaGroup;
if (group != null) {
PreprocessGroup(group);
group.QualifiedName.SetNamespace(targetNS); //Since PreprocessGroup will use this.targetNamespace and that will be that of the root schema's
if (redefine.Groups[group.QualifiedName] != null) {
SendValidationEvent(Res.Sch_GroupDoubleRedefine, group);
}
else {
AddToTable(redefine.Groups, group.QualifiedName, group);
XmlSchemaGroup originalGroup = (XmlSchemaGroup)schemaToUpdate.Groups[group.QualifiedName];
XmlSchema parentSchema = GetParentSchema(originalGroup);
if (originalGroup == null || (parentSchema != originalSchema && !includesOfRedefine.Contains(parentSchema)) ) {
SendValidationEvent(Res.Sch_ComponentRedefineNotFound, "<group>", group.QualifiedName.ToString(), group);
}
else {
group.Redefined = originalGroup;
schemaToUpdate.Groups.Insert(group.QualifiedName, group);
CheckRefinedGroup(group);
}
}
}
else if (items[i] is XmlSchemaAttributeGroup) {
XmlSchemaAttributeGroup attributeGroup = (XmlSchemaAttributeGroup)items[i];
PreprocessAttributeGroup(attributeGroup);
attributeGroup.QualifiedName.SetNamespace(targetNS); //Since PreprocessAttributeGroup will use this.targetNamespace and that will be that of the root schema's
if (redefine.AttributeGroups[attributeGroup.QualifiedName] != null) {
SendValidationEvent(Res.Sch_AttrGroupDoubleRedefine, attributeGroup);
}
else {
AddToTable(redefine.AttributeGroups, attributeGroup.QualifiedName, attributeGroup);
XmlSchemaAttributeGroup originalAttrGroup = (XmlSchemaAttributeGroup)schemaToUpdate.AttributeGroups[attributeGroup.QualifiedName];
XmlSchema parentSchema = GetParentSchema(originalAttrGroup);
if (originalAttrGroup == null || (parentSchema != originalSchema && !includesOfRedefine.Contains(parentSchema)) ) {
SendValidationEvent(Res.Sch_ComponentRedefineNotFound, "<attributeGroup>", attributeGroup.QualifiedName.ToString(), attributeGroup);
}
else {
attributeGroup.Redefined = originalAttrGroup;
schemaToUpdate.AttributeGroups.Insert(attributeGroup.QualifiedName, attributeGroup);
CheckRefinedAttributeGroup(attributeGroup);
}
}
}
else if (items[i] is XmlSchemaComplexType) {
XmlSchemaComplexType complexType = (XmlSchemaComplexType)items[i];
PreprocessComplexType(complexType, false);
complexType.QualifiedName.SetNamespace(targetNS); //Since PreprocessComplexType will use this.targetNamespace and that will be that of the root schema's
if (redefine.SchemaTypes[complexType.QualifiedName] != null) {
SendValidationEvent(Res.Sch_ComplexTypeDoubleRedefine, complexType);
}
else {
AddToTable(redefine.SchemaTypes, complexType.QualifiedName, complexType);
XmlSchemaType originalType = (XmlSchemaType)schemaToUpdate.SchemaTypes[complexType.QualifiedName];
XmlSchema parentSchema = GetParentSchema(originalType);
if (originalType == null || (parentSchema != originalSchema && !includesOfRedefine.Contains(parentSchema)) ) {
SendValidationEvent(Res.Sch_ComponentRedefineNotFound, "<complexType>", complexType.QualifiedName.ToString(), complexType);
}
else if (originalType is XmlSchemaComplexType) {
complexType.Redefined = originalType;
schemaToUpdate.SchemaTypes.Insert(complexType.QualifiedName, complexType);
CheckRefinedComplexType(complexType);
}
else {
SendValidationEvent(Res.Sch_SimpleToComplexTypeRedefine, complexType);
}
}
}
else if (items[i] is XmlSchemaSimpleType) {
XmlSchemaSimpleType simpleType = (XmlSchemaSimpleType)items[i];
PreprocessSimpleType(simpleType, false);
simpleType.QualifiedName.SetNamespace(targetNS); //Since PreprocessSimpleType will use this.targetNamespace and that will be that of the root schema's
if (redefine.SchemaTypes[simpleType.QualifiedName] != null) {
SendValidationEvent(Res.Sch_SimpleTypeDoubleRedefine, simpleType);
}
else {
AddToTable(redefine.SchemaTypes, simpleType.QualifiedName, simpleType);
XmlSchemaType originalType = (XmlSchemaType)schemaToUpdate.SchemaTypes[simpleType.QualifiedName];
XmlSchema parentSchema = GetParentSchema(originalType);
if (originalType == null || (parentSchema != originalSchema && !includesOfRedefine.Contains(parentSchema)) ) {
SendValidationEvent(Res.Sch_ComponentRedefineNotFound, "<simpleType>", simpleType.QualifiedName.ToString(), simpleType);
}
else if (originalType is XmlSchemaSimpleType) {
simpleType.Redefined = originalType;
schemaToUpdate.SchemaTypes.Insert(simpleType.QualifiedName, simpleType);
CheckRefinedSimpleType(simpleType);
}
else {
SendValidationEvent(Res.Sch_ComplexToSimpleTypeRedefine, simpleType);
}
}
}
}
}
private void GetIncludedSet(XmlSchema schema, ArrayList includesList) {
if (includesList.Contains(schema)) {
return;
}
includesList.Add(schema);
for (int i = 0; i < schema.Includes.Count; ++i) {
XmlSchemaExternal external = (XmlSchemaExternal)schema.Includes[i];
if (external.Compositor == Compositor.Include || external.Compositor == Compositor.Redefine) {
if (external.Schema != null) {
GetIncludedSet(external.Schema, includesList);
}
}
}
}
internal static XmlSchema GetParentSchema(XmlSchemaObject currentSchemaObject) {
XmlSchema parentSchema = null;
Debug.Assert((currentSchemaObject as XmlSchema) == null); //The current object should not be schema
while(parentSchema == null && currentSchemaObject != null) {
currentSchemaObject = currentSchemaObject.Parent;
parentSchema = currentSchemaObject as XmlSchema;
}
return parentSchema;
}
private void SetSchemaDefaults(XmlSchema schema) {
if (schema.BlockDefault == XmlSchemaDerivationMethod.All) {
this.blockDefault = XmlSchemaDerivationMethod.All;
}
else if (schema.BlockDefault == XmlSchemaDerivationMethod.None) {
this.blockDefault = XmlSchemaDerivationMethod.Empty;
}
else {
if ((schema.BlockDefault & ~schemaBlockDefaultAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidBlockDefaultValue, schema);
}
this.blockDefault = schema.BlockDefault & schemaBlockDefaultAllowed;
}
if (schema.FinalDefault == XmlSchemaDerivationMethod.All) {
this.finalDefault = XmlSchemaDerivationMethod.All;
}
else if (schema.FinalDefault == XmlSchemaDerivationMethod.None) {
this.finalDefault = XmlSchemaDerivationMethod.Empty;
}
else {
if ((schema.FinalDefault & ~schemaFinalDefaultAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidFinalDefaultValue, schema);
}
this.finalDefault = schema.FinalDefault & schemaFinalDefaultAllowed;
}
this.elementFormDefault = schema.ElementFormDefault;
if (this.elementFormDefault == XmlSchemaForm.None) {
this.elementFormDefault = XmlSchemaForm.Unqualified;
}
this.attributeFormDefault = schema.AttributeFormDefault;
if (this.attributeFormDefault == XmlSchemaForm.None) {
this.attributeFormDefault = XmlSchemaForm.Unqualified;
}
}
private int CountGroupSelfReference(XmlSchemaObjectCollection items, XmlQualifiedName name, XmlSchemaGroup redefined) {
int count = 0;
for (int i = 0; i < items.Count; ++i) {
XmlSchemaGroupRef groupRef = items[i] as XmlSchemaGroupRef;
if (groupRef != null) {
if (groupRef.RefName == name) {
groupRef.Redefined = redefined;
if (groupRef.MinOccurs != decimal.One || groupRef.MaxOccurs != decimal.One) {
SendValidationEvent(Res.Sch_MinMaxGroupRedefine, groupRef);
}
count ++;
}
}
else if (items[i] is XmlSchemaGroupBase) {
count += CountGroupSelfReference(((XmlSchemaGroupBase)items[i]).Items, name, redefined);
}
if (count > 1) {
break;
}
}
return count;
}
private void CheckRefinedGroup(XmlSchemaGroup group) {
int count = 0;
if (group.Particle != null) {
count = CountGroupSelfReference(group.Particle.Items, group.QualifiedName, group.Redefined);
}
if (count > 1) {
SendValidationEvent(Res.Sch_MultipleGroupSelfRef, group);
}
group.SelfReferenceCount = count;
}
private void CheckRefinedAttributeGroup(XmlSchemaAttributeGroup attributeGroup) {
int count = 0;
for (int i = 0; i < attributeGroup.Attributes.Count; ++i) {
XmlSchemaAttributeGroupRef attrGroupRef = attributeGroup.Attributes[i] as XmlSchemaAttributeGroupRef;
if (attrGroupRef != null && attrGroupRef.RefName == attributeGroup.QualifiedName) {
count++;
}
}
if (count > 1) {
SendValidationEvent(Res.Sch_MultipleAttrGroupSelfRef, attributeGroup);
}
attributeGroup.SelfReferenceCount = count;
}
private void CheckRefinedSimpleType(XmlSchemaSimpleType stype) {
if (stype.Content != null && stype.Content is XmlSchemaSimpleTypeRestriction) {
XmlSchemaSimpleTypeRestriction restriction = (XmlSchemaSimpleTypeRestriction)stype.Content;
if (restriction.BaseTypeName == stype.QualifiedName) {
return;
}
}
SendValidationEvent(Res.Sch_InvalidTypeRedefine, stype);
}
private void CheckRefinedComplexType(XmlSchemaComplexType ctype) {
if (ctype.ContentModel != null) {
XmlQualifiedName baseName;
if (ctype.ContentModel is XmlSchemaComplexContent) {
XmlSchemaComplexContent content = (XmlSchemaComplexContent)ctype.ContentModel;
if (content.Content is XmlSchemaComplexContentRestriction) {
baseName = ((XmlSchemaComplexContentRestriction)content.Content).BaseTypeName;
}
else {
baseName = ((XmlSchemaComplexContentExtension)content.Content).BaseTypeName;
}
}
else {
XmlSchemaSimpleContent content = (XmlSchemaSimpleContent)ctype.ContentModel;
if (content.Content is XmlSchemaSimpleContentRestriction) {
baseName = ((XmlSchemaSimpleContentRestriction)content.Content).BaseTypeName;
}
else {
baseName = ((XmlSchemaSimpleContentExtension)content.Content).BaseTypeName;
}
}
if (baseName == ctype.QualifiedName) {
return;
}
}
SendValidationEvent(Res.Sch_InvalidTypeRedefine, ctype);
}
private void PreprocessAttribute(XmlSchemaAttribute attribute) {
if (attribute.Name != null) {
ValidateNameAttribute(attribute);
attribute.SetQualifiedName(new XmlQualifiedName(attribute.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", attribute);
}
if (attribute.Use != XmlSchemaUse.None) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "use", attribute);
}
if (attribute.Form != XmlSchemaForm.None) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "form", attribute);
}
PreprocessAttributeContent(attribute);
ValidateIdAttribute(attribute);
}
private void PreprocessLocalAttribute(XmlSchemaAttribute attribute) {
if (attribute.Name != null) { // name
ValidateNameAttribute(attribute);
PreprocessAttributeContent(attribute);
attribute.SetQualifiedName(new XmlQualifiedName(attribute.Name, (attribute.Form == XmlSchemaForm.Qualified || (attribute.Form == XmlSchemaForm.None && this.attributeFormDefault == XmlSchemaForm.Qualified)) ? this.targetNamespace : null));
}
else { // ref
PreprocessAnnotation(attribute); //set parent of annotation child of ref
if (attribute.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_AttributeNameRef, "???", attribute);
}
else {
ValidateQNameAttribute(attribute, "ref", attribute.RefName);
}
if (!attribute.SchemaTypeName.IsEmpty ||
attribute.SchemaType != null ||
attribute.Form != XmlSchemaForm.None /*||
attribute.DefaultValue != null ||
attribute.FixedValue != null*/
) {
SendValidationEvent(Res.Sch_InvalidAttributeRef, attribute);
}
attribute.SetQualifiedName(attribute.RefName);
}
ValidateIdAttribute(attribute);
}
private void PreprocessAttributeContent(XmlSchemaAttribute attribute) {
PreprocessAnnotation(attribute);
if (Ref.Equal(currentSchema.TargetNamespace, NsXsi)) {
SendValidationEvent(Res.Sch_TargetNamespaceXsi, attribute);
}
if (!attribute.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "ref", attribute);
}
if (attribute.DefaultValue != null && attribute.FixedValue != null) {
SendValidationEvent(Res.Sch_DefaultFixedAttributes, attribute);
}
if (attribute.DefaultValue != null && attribute.Use != XmlSchemaUse.Optional && attribute.Use != XmlSchemaUse.None) {
SendValidationEvent(Res.Sch_OptionalDefaultAttribute, attribute);
}
if (attribute.Name == Xmlns) {
SendValidationEvent(Res.Sch_XmlNsAttribute, attribute);
}
if (attribute.SchemaType != null) {
SetParent(attribute.SchemaType, attribute);
if (!attribute.SchemaTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_TypeMutualExclusive, attribute);
}
PreprocessSimpleType(attribute.SchemaType, true);
}
if (!attribute.SchemaTypeName.IsEmpty) {
ValidateQNameAttribute(attribute, "type", attribute.SchemaTypeName);
}
}
private void PreprocessAttributeGroup(XmlSchemaAttributeGroup attributeGroup) {
if (attributeGroup.Name != null) {
ValidateNameAttribute(attributeGroup);
attributeGroup.SetQualifiedName(new XmlQualifiedName(attributeGroup.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", attributeGroup);
}
PreprocessAttributes(attributeGroup.Attributes, attributeGroup.AnyAttribute, attributeGroup);
PreprocessAnnotation(attributeGroup);
ValidateIdAttribute(attributeGroup);
}
private void PreprocessElement(XmlSchemaElement element) {
if (element.Name != null) {
ValidateNameAttribute(element);
element.SetQualifiedName(new XmlQualifiedName(element.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", element);
}
PreprocessElementContent(element);
if (element.Final == XmlSchemaDerivationMethod.All) {
element.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else if (element.Final == XmlSchemaDerivationMethod.None) {
if (this.finalDefault == XmlSchemaDerivationMethod.All) {
element.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else {
element.SetFinalResolved(this.finalDefault & elementFinalAllowed);
}
}
else {
if ((element.Final & ~elementFinalAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidElementFinalValue, element);
}
element.SetFinalResolved(element.Final & elementFinalAllowed);
}
if (element.Form != XmlSchemaForm.None) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "form", element);
}
if (element.MinOccursString != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "minOccurs", element);
}
if (element.MaxOccursString != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "maxOccurs", element);
}
if (!element.SubstitutionGroup.IsEmpty) {
ValidateQNameAttribute(element, "type", element.SubstitutionGroup);
}
ValidateIdAttribute(element);
}
private void PreprocessLocalElement(XmlSchemaElement element) {
if (element.Name != null) { // name
ValidateNameAttribute(element);
PreprocessElementContent(element);
element.SetQualifiedName(new XmlQualifiedName(element.Name, (element.Form == XmlSchemaForm.Qualified || (element.Form == XmlSchemaForm.None && this.elementFormDefault == XmlSchemaForm.Qualified))? this.targetNamespace : null));
}
else { // ref
PreprocessAnnotation(element); //Check annotation child for ref and set parent
if (element.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_ElementNameRef, element);
}
else {
ValidateQNameAttribute(element, "ref", element.RefName);
}
if (!element.SchemaTypeName.IsEmpty ||
element.HasAbstractAttribute ||
element.Block != XmlSchemaDerivationMethod.None ||
element.SchemaType != null ||
element.HasConstraints ||
element.DefaultValue != null ||
element.Form != XmlSchemaForm.None ||
element.FixedValue != null ||
element.HasNillableAttribute) {
SendValidationEvent(Res.Sch_InvalidElementRef, element);
}
if (element.DefaultValue != null && element.FixedValue != null) {
SendValidationEvent(Res.Sch_DefaultFixedAttributes, element);
}
element.SetQualifiedName(element.RefName);
}
if (element.MinOccurs > element.MaxOccurs) {
element.MinOccurs = decimal.Zero;
SendValidationEvent(Res.Sch_MinGtMax, element);
}
if(element.HasAbstractAttribute) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "abstract", element);
}
if (element.Final != XmlSchemaDerivationMethod.None) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "final", element);
}
if (!element.SubstitutionGroup.IsEmpty) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "substitutionGroup", element);
}
ValidateIdAttribute(element);
}
private void PreprocessElementContent(XmlSchemaElement element) {
PreprocessAnnotation(element); //Set parent for Annotation child of element
if (!element.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "ref", element);
}
if (element.Block == XmlSchemaDerivationMethod.All) {
element.SetBlockResolved(XmlSchemaDerivationMethod.All);
}
else if (element.Block == XmlSchemaDerivationMethod.None) {
if (this.blockDefault == XmlSchemaDerivationMethod.All) {
element.SetBlockResolved(XmlSchemaDerivationMethod.All);
}
else {
element.SetBlockResolved(this.blockDefault & elementBlockAllowed);
}
}
else {
if ((element.Block & ~elementBlockAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidElementBlockValue, element);
}
element.SetBlockResolved(element.Block & elementBlockAllowed);
}
if (element.SchemaType != null) {
SetParent(element.SchemaType, element); //Set parent for simple / complex type child of element
if (!element.SchemaTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_TypeMutualExclusive, element);
}
if (element.SchemaType is XmlSchemaComplexType) {
PreprocessComplexType((XmlSchemaComplexType)element.SchemaType, true);
}
else {
PreprocessSimpleType((XmlSchemaSimpleType)element.SchemaType, true);
}
}
if (!element.SchemaTypeName.IsEmpty) {
ValidateQNameAttribute(element, "type", element.SchemaTypeName);
}
if (element.DefaultValue != null && element.FixedValue != null) {
SendValidationEvent(Res.Sch_DefaultFixedAttributes, element);
}
for (int i = 0; i < element.Constraints.Count; ++i) {
XmlSchemaIdentityConstraint identityConstraint = (XmlSchemaIdentityConstraint)element.Constraints[i];
SetParent(identityConstraint, element);
PreprocessIdentityConstraint(identityConstraint);
}
}
private void PreprocessIdentityConstraint(XmlSchemaIdentityConstraint constraint) {
bool valid = true;
PreprocessAnnotation(constraint); //Set parent of annotation child of key/keyref/unique
if (constraint.Name != null) {
ValidateNameAttribute(constraint);
constraint.SetQualifiedName(new XmlQualifiedName(constraint.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", constraint);
valid = false;
}
if (rootSchema.IdentityConstraints[constraint.QualifiedName] != null) {
SendValidationEvent(Res.Sch_DupIdentityConstraint, constraint.QualifiedName.ToString(), constraint);
valid = false;
}
else {
rootSchema.IdentityConstraints.Add(constraint.QualifiedName, constraint);
}
if (constraint.Selector == null) {
SendValidationEvent(Res.Sch_IdConstraintNoSelector, constraint);
valid = false;
}
if (constraint.Fields.Count == 0) {
SendValidationEvent(Res.Sch_IdConstraintNoFields, constraint);
valid = false;
}
if (constraint is XmlSchemaKeyref) {
XmlSchemaKeyref keyref = (XmlSchemaKeyref)constraint;
if (keyref.Refer.IsEmpty) {
SendValidationEvent(Res.Sch_IdConstraintNoRefer, constraint);
valid = false;
}
else {
ValidateQNameAttribute(keyref, "refer", keyref.Refer);
}
}
if (valid) {
ValidateIdAttribute(constraint);
ValidateIdAttribute(constraint.Selector);
SetParent(constraint.Selector, constraint);
for (int i = 0; i < constraint.Fields.Count; ++i) {
SetParent(constraint.Fields[i], constraint);
ValidateIdAttribute(constraint.Fields[i]);
}
}
}
private void PreprocessSimpleType(XmlSchemaSimpleType simpleType, bool local) {
if (local) {
if (simpleType.Name != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "name", simpleType);
}
}
else {
if (simpleType.Name != null) {
ValidateNameAttribute(simpleType);
simpleType.SetQualifiedName(new XmlQualifiedName(simpleType.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", simpleType);
}
if (simpleType.Final == XmlSchemaDerivationMethod.All) {
simpleType.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else if (simpleType.Final == XmlSchemaDerivationMethod.None) {
if (this.finalDefault == XmlSchemaDerivationMethod.All) {
simpleType.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else {
simpleType.SetFinalResolved(this.finalDefault & simpleTypeFinalAllowed);
}
}
else {
if ((simpleType.Final & ~simpleTypeFinalAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidSimpleTypeFinalValue, simpleType);
}
simpleType.SetFinalResolved(simpleType.Final & simpleTypeFinalAllowed);
}
}
if (simpleType.Content == null) {
SendValidationEvent(Res.Sch_NoSimpleTypeContent, simpleType);
}
else if (simpleType.Content is XmlSchemaSimpleTypeRestriction) {
XmlSchemaSimpleTypeRestriction restriction = (XmlSchemaSimpleTypeRestriction)simpleType.Content;
//SetParent
SetParent(restriction, simpleType);
for (int i = 0; i < restriction.Facets.Count; ++i) {
SetParent(restriction.Facets[i], restriction);
}
if (restriction.BaseType != null) {
if (!restriction.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_SimpleTypeRestRefBase, restriction);
}
PreprocessSimpleType(restriction.BaseType, true);
}
else {
if (restriction.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_SimpleTypeRestRefBaseNone, restriction);
}
else {
ValidateQNameAttribute(restriction, "base", restriction.BaseTypeName);
}
}
PreprocessAnnotation(restriction); //set parent of annotation child of simple type restriction
ValidateIdAttribute(restriction);
}
else if (simpleType.Content is XmlSchemaSimpleTypeList) {
XmlSchemaSimpleTypeList list = (XmlSchemaSimpleTypeList)simpleType.Content;
SetParent(list, simpleType);
if (list.ItemType != null) {
if (!list.ItemTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_SimpleTypeListRefBase, list);
}
SetParent(list.ItemType, list);
PreprocessSimpleType(list.ItemType, true);
}
else {
if (list.ItemTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_SimpleTypeListRefBaseNone, list);
}
else {
ValidateQNameAttribute(list, "itemType", list.ItemTypeName);
}
}
PreprocessAnnotation(list); //set parent of annotation child of simple type list
ValidateIdAttribute(list);
}
else { // union
XmlSchemaSimpleTypeUnion union1 = (XmlSchemaSimpleTypeUnion)simpleType.Content;
SetParent(union1, simpleType);
int baseTypeCount = union1.BaseTypes.Count;
if (union1.MemberTypes != null) {
baseTypeCount += union1.MemberTypes.Length;
XmlQualifiedName[] qNames = union1.MemberTypes;
for (int i = 0; i < qNames.Length; ++i) {
ValidateQNameAttribute(union1, "memberTypes", qNames[i]);
}
}
if (baseTypeCount == 0) {
SendValidationEvent(Res.Sch_SimpleTypeUnionNoBase, union1);
}
for (int i = 0; i < union1.BaseTypes.Count; ++i) {
XmlSchemaSimpleType type = (XmlSchemaSimpleType)union1.BaseTypes[i];
SetParent(type, union1);
PreprocessSimpleType(type, true);
}
PreprocessAnnotation(union1); //set parent of annotation child of simple type union
ValidateIdAttribute(union1);
}
ValidateIdAttribute(simpleType);
}
private void PreprocessComplexType(XmlSchemaComplexType complexType, bool local) {
if (local) {
if (complexType.Name != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "name", complexType);
}
}
else {
if (complexType.Name != null) {
ValidateNameAttribute(complexType);
complexType.SetQualifiedName(new XmlQualifiedName(complexType.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", complexType);
}
if (complexType.Block == XmlSchemaDerivationMethod.All) {
complexType.SetBlockResolved(XmlSchemaDerivationMethod.All);
}
else if (complexType.Block == XmlSchemaDerivationMethod.None) {
complexType.SetBlockResolved(this.blockDefault & complexTypeBlockAllowed);
}
else {
if ((complexType.Block & ~complexTypeBlockAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidComplexTypeBlockValue, complexType);
}
complexType.SetBlockResolved(complexType.Block & complexTypeBlockAllowed);
}
if (complexType.Final == XmlSchemaDerivationMethod.All) {
complexType.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else if (complexType.Final == XmlSchemaDerivationMethod.None) {
if (this.finalDefault == XmlSchemaDerivationMethod.All) {
complexType.SetFinalResolved(XmlSchemaDerivationMethod.All);
}
else {
complexType.SetFinalResolved(this.finalDefault & complexTypeFinalAllowed);
}
}
else {
if ((complexType.Final & ~complexTypeFinalAllowed) != 0) {
SendValidationEvent(Res.Sch_InvalidComplexTypeFinalValue, complexType);
}
complexType.SetFinalResolved(complexType.Final & complexTypeFinalAllowed);
}
}
if (complexType.ContentModel != null) {
SetParent(complexType.ContentModel, complexType); //SimpleContent / complexCotent
PreprocessAnnotation(complexType.ContentModel);
if (complexType.Particle != null || complexType.Attributes != null) {
// this is illigal
}
if (complexType.ContentModel is XmlSchemaSimpleContent) {
XmlSchemaSimpleContent content = (XmlSchemaSimpleContent)complexType.ContentModel;
if (content.Content == null) {
if (complexType.QualifiedName == XmlQualifiedName.Empty) {
SendValidationEvent(Res.Sch_NoRestOrExt, complexType);
}
else {
SendValidationEvent(Res.Sch_NoRestOrExtQName, complexType.QualifiedName.Name, complexType.QualifiedName.Namespace, complexType);
}
}
else {
SetParent(content.Content, content); //simplecontent extension / restriction
PreprocessAnnotation(content.Content); //annotation child of simple extension / restriction
if (content.Content is XmlSchemaSimpleContentExtension) {
XmlSchemaSimpleContentExtension contentExtension = (XmlSchemaSimpleContentExtension)content.Content;
if (contentExtension.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "base", contentExtension);
}
else {
ValidateQNameAttribute(contentExtension, "base", contentExtension.BaseTypeName);
}
PreprocessAttributes(contentExtension.Attributes, contentExtension.AnyAttribute, contentExtension);
ValidateIdAttribute(contentExtension);
}
else { //XmlSchemaSimpleContentRestriction
XmlSchemaSimpleContentRestriction contentRestriction = (XmlSchemaSimpleContentRestriction)content.Content;
if (contentRestriction.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "base", contentRestriction);
}
else {
ValidateQNameAttribute(contentRestriction, "base", contentRestriction.BaseTypeName);
}
if (contentRestriction.BaseType != null) {
SetParent(contentRestriction.BaseType, contentRestriction);
PreprocessSimpleType(contentRestriction.BaseType, true);
}
PreprocessAttributes(contentRestriction.Attributes, contentRestriction.AnyAttribute, contentRestriction);
ValidateIdAttribute(contentRestriction);
}
}
ValidateIdAttribute(content);
}
else { // XmlSchemaComplexContent
XmlSchemaComplexContent content = (XmlSchemaComplexContent)complexType.ContentModel;
if (content.Content == null) {
if (complexType.QualifiedName == XmlQualifiedName.Empty) {
SendValidationEvent(Res.Sch_NoRestOrExt, complexType);
}
else {
SendValidationEvent(Res.Sch_NoRestOrExtQName, complexType.QualifiedName.Name, complexType.QualifiedName.Namespace, complexType);
}
}
else {
if ( !content.HasMixedAttribute && complexType.IsMixed) {
content.IsMixed = true; // fixup
}
SetParent(content.Content, content); //complexcontent extension / restriction
PreprocessAnnotation(content.Content); //Annotation child of extension / restriction
if (content.Content is XmlSchemaComplexContentExtension) {
XmlSchemaComplexContentExtension contentExtension = (XmlSchemaComplexContentExtension)content.Content;
if (contentExtension.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "base", contentExtension);
}
else {
ValidateQNameAttribute(contentExtension, "base", contentExtension.BaseTypeName);
}
if (contentExtension.Particle != null) {
SetParent(contentExtension.Particle, contentExtension); //Group / all / choice / sequence
PreprocessParticle(contentExtension.Particle);
}
PreprocessAttributes(contentExtension.Attributes, contentExtension.AnyAttribute, contentExtension);
ValidateIdAttribute(contentExtension);
}
else { // XmlSchemaComplexContentRestriction
XmlSchemaComplexContentRestriction contentRestriction = (XmlSchemaComplexContentRestriction)content.Content;
if (contentRestriction.BaseTypeName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "base", contentRestriction);
}
else {
ValidateQNameAttribute(contentRestriction, "base", contentRestriction.BaseTypeName);
}
if (contentRestriction.Particle != null) {
SetParent(contentRestriction.Particle, contentRestriction); //Group / all / choice / sequence
PreprocessParticle(contentRestriction.Particle);
}
PreprocessAttributes(contentRestriction.Attributes, contentRestriction.AnyAttribute, contentRestriction);
ValidateIdAttribute(contentRestriction);
}
ValidateIdAttribute(content);
}
}
}
else {
if (complexType.Particle != null) {
SetParent(complexType.Particle, complexType);
PreprocessParticle(complexType.Particle);
}
PreprocessAttributes(complexType.Attributes, complexType.AnyAttribute, complexType);
}
ValidateIdAttribute(complexType);
}
private void PreprocessGroup(XmlSchemaGroup group) {
if (group.Name != null) {
ValidateNameAttribute(group);
group.SetQualifiedName(new XmlQualifiedName(group.Name, this.targetNamespace));
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", group);
}
if (group.Particle == null) {
SendValidationEvent(Res.Sch_NoGroupParticle, group);
return;
}
if (group.Particle.MinOccursString != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "minOccurs", group.Particle);
}
if (group.Particle.MaxOccursString != null) {
SendValidationEvent(Res.Sch_ForbiddenAttribute, "maxOccurs", group.Particle);
}
PreprocessParticle(group.Particle);
PreprocessAnnotation(group); //Set parent of annotation child of group
ValidateIdAttribute(group);
}
private void PreprocessNotation(XmlSchemaNotation notation) {
if (notation.Name != null) {
ValidateNameAttribute(notation);
notation.QualifiedName = new XmlQualifiedName(notation.Name, this.targetNamespace);
}
else {
SendValidationEvent(Res.Sch_MissRequiredAttribute, "name", notation);
}
if (notation.Public == null && notation.System == null) {
SendValidationEvent(Res.Sch_MissingPublicSystemAttribute, notation);
}
else {
if (notation.Public != null) {
try {
XmlConvert.VerifyTOKEN(notation.Public); // can throw
}
catch(XmlException eInner) {
SendValidationEvent(Res.Sch_InvalidPublicAttribute, new string[] { notation.Public} , eInner, notation);
}
}
if (notation.System != null) {
ParseUri(notation.System, Res.Sch_InvalidSystemAttribute, notation);
}
}
PreprocessAnnotation(notation); //Set parent of annotation child of notation
ValidateIdAttribute(notation);
}
private void PreprocessParticle(XmlSchemaParticle particle) {
XmlSchemaObjectCollection items;
if (particle is XmlSchemaAll) {
if (particle.MinOccurs != decimal.Zero && particle.MinOccurs != decimal.One) {
particle.MinOccurs = decimal.One;
SendValidationEvent(Res.Sch_InvalidAllMin, particle);
}
if (particle.MaxOccurs != decimal.One) {
particle.MaxOccurs = decimal.One;
SendValidationEvent(Res.Sch_InvalidAllMax, particle);
}
items = ((XmlSchemaAll) particle).Items;
for (int i = 0; i < items.Count; ++i) {
XmlSchemaElement element = (XmlSchemaElement)items[i];
if (element.MaxOccurs != decimal.Zero && element.MaxOccurs != decimal.One) {
element.MaxOccurs = decimal.One;
SendValidationEvent(Res.Sch_InvalidAllElementMax, element);
}
SetParent(element, particle);
PreprocessLocalElement(element);
}
}
else {
if (particle.MinOccurs > particle.MaxOccurs) {
particle.MinOccurs = particle.MaxOccurs;
SendValidationEvent(Res.Sch_MinGtMax, particle);
}
if (particle is XmlSchemaChoice) {
items = ((XmlSchemaChoice)particle).Items;
for (int i = 0; i < items.Count; ++i) {
SetParent(items[i], particle);
XmlSchemaElement element = items[i] as XmlSchemaElement;
if (element != null) {
PreprocessLocalElement(element);
}
else {
PreprocessParticle((XmlSchemaParticle)items[i]);
}
}
}
else if (particle is XmlSchemaSequence) {
items = ((XmlSchemaSequence)particle).Items;
for (int i = 0; i < items.Count; ++i) {
SetParent(items[i], particle);
XmlSchemaElement element = items[i] as XmlSchemaElement;
if (element != null) {
PreprocessLocalElement(element);
}
else {
PreprocessParticle((XmlSchemaParticle)items[i]);
}
}
}
else if (particle is XmlSchemaGroupRef) {
XmlSchemaGroupRef groupRef = (XmlSchemaGroupRef)particle;
if (groupRef.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "ref", groupRef);
}
else {
ValidateQNameAttribute(groupRef, "ref", groupRef.RefName);
}
}
else if (particle is XmlSchemaAny) {
try {
((XmlSchemaAny)particle).BuildNamespaceList(this.targetNamespace);
}
catch(FormatException fe) {
SendValidationEvent(Res.Sch_InvalidAnyDetailed, new string[] {fe.Message}, fe, particle);
}
}
}
PreprocessAnnotation(particle); //set parent of annotation child of group / all/ choice / sequence
ValidateIdAttribute(particle);
}
private void PreprocessAttributes(XmlSchemaObjectCollection attributes, XmlSchemaAnyAttribute anyAttribute, XmlSchemaObject parent) {
for (int i = 0; i < attributes.Count; ++i) {
SetParent(attributes[i], parent);
XmlSchemaAttribute attr = attributes[i] as XmlSchemaAttribute;
if (attr != null) {
PreprocessLocalAttribute(attr);
}
else { // XmlSchemaAttributeGroupRef
XmlSchemaAttributeGroupRef attributeGroupRef = (XmlSchemaAttributeGroupRef)attributes[i];
if (attributeGroupRef.RefName.IsEmpty) {
SendValidationEvent(Res.Sch_MissAttribute, "ref", attributeGroupRef);
}
else {
ValidateQNameAttribute(attributeGroupRef, "ref", attributeGroupRef.RefName);
}
PreprocessAnnotation(attributes[i]); //set parent of annotation child of attributeGroupRef
ValidateIdAttribute(attributes[i]);
}
}
if (anyAttribute != null) {
try {
SetParent(anyAttribute, parent);
PreprocessAnnotation(anyAttribute); //set parent of annotation child of any attribute
anyAttribute.BuildNamespaceList(this.targetNamespace);
}
catch(FormatException fe) {
SendValidationEvent(Res.Sch_InvalidAnyDetailed, new string[] {fe.Message}, fe, anyAttribute);
}
ValidateIdAttribute(anyAttribute);
}
}
private void ValidateIdAttribute(XmlSchemaObject xso) {
if (xso.IdAttribute != null) {
try {
xso.IdAttribute = NameTable.Add(XmlConvert.VerifyNCName(xso.IdAttribute));
}
catch(XmlException ex) {
SendValidationEvent(Res.Sch_InvalidIdAttribute, new string [] {ex.Message}, ex, xso);
return;
}
catch(ArgumentNullException) {
SendValidationEvent(Res.Sch_InvalidIdAttribute, Res.GetString(Res.Sch_NullValue), xso);
return;
}
try {
currentSchema.Ids.Add(xso.IdAttribute, xso);
}
catch (ArgumentException) {
SendValidationEvent(Res.Sch_DupIdAttribute, xso);
}
}
}
private void ValidateNameAttribute(XmlSchemaObject xso) {
string name = xso.NameAttribute;
if (name == null || name.Length == 0) {
SendValidationEvent(Res.Sch_InvalidNameAttributeEx, null, Res.GetString(Res.Sch_NullValue), xso);
}
//Normalize whitespace since NCName has whitespace facet="collapse"
name = XmlComplianceUtil.NonCDataNormalize(name);
int len = ValidateNames.ParseNCName(name, 0);
if (len != name.Length) { // If the string is not a valid NCName, then throw or return false
string[] invCharArgs = XmlException.BuildCharExceptionArgs(name, len);
string innerStr = Res.GetString(Res.Xml_BadNameCharWithPos, invCharArgs[0], invCharArgs[1], len);
SendValidationEvent(Res.Sch_InvalidNameAttributeEx, name, innerStr, xso);
}
else {
xso.NameAttribute = NameTable.Add(name);
}
}
private void ValidateQNameAttribute(XmlSchemaObject xso, string attributeName, XmlQualifiedName value) {
try {
value.Verify();
value.Atomize(NameTable);
if (currentSchema.IsChameleon && value.Namespace.Length == 0) {
value.SetNamespace(currentSchema.TargetNamespace); //chameleon schemas are clones that have correct targetNamespace set
}
if(referenceNamespaces[value.Namespace] == null) {
SendValidationEvent(Res.Sch_UnrefNS, value.Namespace, xso, XmlSeverityType.Warning);
}
}
catch(FormatException fx) {
SendValidationEvent(Res.Sch_InvalidAttribute, new string[] {attributeName, fx.Message}, fx, xso);
}
catch(XmlException ex) {
SendValidationEvent(Res.Sch_InvalidAttribute, new string[] {attributeName, ex.Message}, ex, xso);
}
}
[ResourceConsumption(ResourceScope.Machine)]
[ResourceExposure(ResourceScope.Machine)]
private Uri ResolveSchemaLocationUri(XmlSchema enclosingSchema, string location) {
if (location.Length == 0) {
return null;
}
return xmlResolver.ResolveUri( enclosingSchema.BaseUri, location);
}
private object GetSchemaEntity(Uri ruri) {
return xmlResolver.GetEntity(ruri, null, null);
}
private XmlSchema GetChameleonSchema(string targetNamespace, XmlSchema schema) {
ChameleonKey cKey = new ChameleonKey(targetNamespace, schema);
XmlSchema chameleonSchema = (XmlSchema)chameleonSchemas[cKey]; //Need not clone if a schema for that namespace already exists
if (chameleonSchema == null) {
chameleonSchema = schema.DeepClone(); //It is ok that we dont lock the clone since no one else has access to it yet
chameleonSchema.IsChameleon = true;
chameleonSchema.TargetNamespace = targetNamespace;
chameleonSchemas.Add(cKey, chameleonSchema);
chameleonSchema.SourceUri = schema.SourceUri;
//Handle the original schema that was added to lockList before cloning occurred
schema.IsProcessing = false; //Since we cloned it for the chameleon
}
return chameleonSchema;
}
private void SetParent(XmlSchemaObject child, XmlSchemaObject parent) {
child.Parent = parent;
}
private void PreprocessAnnotation(XmlSchemaObject schemaObject) {
XmlSchemaAnnotation annotation;
if (schemaObject is XmlSchemaAnnotated) {
XmlSchemaAnnotated annotated = schemaObject as XmlSchemaAnnotated;
annotation = annotated.Annotation;
if (annotation != null) {
PreprocessAnnotation(annotation);
annotation.Parent = schemaObject;
}
}
}
private void PreprocessAnnotation(XmlSchemaAnnotation annotation) {
ValidateIdAttribute(annotation);
for (int i = 0; i < annotation.Items.Count; ++i) {
annotation.Items[i].Parent = annotation; //Can be documentation or appInfo
}
}
};
} // namespace System.Xml
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