/// <summary>
/// rootElement == null: Load elements, validation of root element will occur in caller by checking object type or casting
/// rootElement != null: Only perform validation, and expect rootElement at root of markup
/// </summary>
/// <param name="stream"></param>
/// <param name="parentUri"></param>
/// <param name="pc"></param>
/// <param name="mimeType"></param>
/// <param name="rootElement"></param>
/// <returns></returns>
private object Load(Stream stream, Uri parentUri, ParserContext pc, ContentType mimeType, string rootElement)
{
object obj = null;
if (!DocumentMode)
{ // Loose XAML, just check against schema, don't check content type
if (rootElement == null)
{
obj = XamlReader.Load(stream, pc);
}
}
else
{ // inside an XPS Document. Perform maximum validation
XpsSchema schema = XpsSchema.GetSchema(mimeType);
Uri uri = pc.BaseUri;
Uri packageUri = PackUriHelper.GetPackageUri(uri);
Uri partUri = PackUriHelper.GetPartUri(uri);
Package package = PreloadedPackages.GetPackage(packageUri);
Uri parentPackageUri = null;
if (parentUri != null)
{
parentPackageUri = PackUriHelper.GetPackageUri(parentUri);
if (!parentPackageUri.Equals(packageUri))
{
throw new FileFormatException(SR.Get(SRID.XpsValidatingLoaderUriNotInSamePackage));
}
}
schema.ValidateRelationships(new SecurityCriticalData <Package>(package), packageUri, partUri, mimeType);
if (schema.AllowsMultipleReferencesToSameUri(mimeType))
{
_uniqueUriRef = null;
}
else
{
_uniqueUriRef = new Hashtable(11);
}
Hashtable validResources = (_validResources.Count > 0 ? _validResources.Peek() : null);
if (schema.HasRequiredResources(mimeType))
{
validResources = new Hashtable(11);
PackagePart part = package.GetPart(partUri);
PackageRelationshipCollection requiredResources = part.GetRelationshipsByType(_requiredResourceRel);
foreach (PackageRelationship relationShip in requiredResources)
{
Uri targetUri = PackUriHelper.ResolvePartUri(partUri, relationShip.TargetUri);
Uri absTargetUri = PackUriHelper.Create(packageUri, targetUri);
PackagePart targetPart = package.GetPart(targetUri);
if (schema.IsValidRequiredResourceMimeType(targetPart.ValidatedContentType()))
{
if (!validResources.ContainsKey(absTargetUri))
{
validResources.Add(absTargetUri, true);
}
}
else
{
if (!validResources.ContainsKey(absTargetUri))
{
validResources.Add(absTargetUri, false);
}
}
}
}
XpsSchemaValidator xpsSchemaValidator = new XpsSchemaValidator(this, schema, mimeType,
stream, packageUri, partUri);
_validResources.Push(validResources);
if (rootElement != null)
{
xpsSchemaValidator.XmlReader.MoveToContent();
if (!rootElement.Equals(xpsSchemaValidator.XmlReader.Name))
{
throw new FileFormatException(SR.Get(SRID.XpsValidatingLoaderUnsupportedMimeType));
}
while (xpsSchemaValidator.XmlReader.Read())
{
;
}
}
else
{
obj = XamlReader.Load(xpsSchemaValidator.XmlReader,
pc,
XamlParseMode.Synchronous);
}
_validResources.Pop();
}
return(obj);
}
private object Load(Stream stream, Uri parentUri, ParserContext pc, ContentType mimeType, string rootElement)
{
object result = null;
List <Type> safeTypes = new List <Type>
{
typeof(ResourceDictionary)
};
if (!XpsValidatingLoader.DocumentMode)
{
if (rootElement == null)
{
XmlReader reader = XmlReader.Create(stream, null, pc);
result = XamlReader.Load(reader, pc, XamlParseMode.Synchronous, FrameworkCompatibilityPreferences.DisableLegacyDangerousXamlDeserializationMode, safeTypes);
stream.Close();
}
}
else
{
XpsSchema schema = XpsSchema.GetSchema(mimeType);
Uri baseUri = pc.BaseUri;
Uri uri;
Uri uri2;
PackUriHelper.ValidateAndGetPackUriComponents(baseUri, out uri, out uri2);
Package package = PreloadedPackages.GetPackage(uri);
if (parentUri != null)
{
Uri packageUri = PackUriHelper.GetPackageUri(parentUri);
if (!packageUri.Equals(uri))
{
throw new FileFormatException(SR.Get("XpsValidatingLoaderUriNotInSamePackage"));
}
}
schema.ValidateRelationships(new SecurityCriticalData <Package>(package), uri, uri2, mimeType);
if (schema.AllowsMultipleReferencesToSameUri(mimeType))
{
this._uniqueUriRef = null;
}
else
{
this._uniqueUriRef = new Hashtable(11);
}
Hashtable hashtable = (XpsValidatingLoader._validResources.Count > 0) ? XpsValidatingLoader._validResources.Peek() : null;
if (schema.HasRequiredResources(mimeType))
{
hashtable = new Hashtable(11);
PackagePart part = package.GetPart(uri2);
PackageRelationshipCollection relationshipsByType = part.GetRelationshipsByType(XpsValidatingLoader._requiredResourceRel);
foreach (PackageRelationship packageRelationship in relationshipsByType)
{
Uri partUri = PackUriHelper.ResolvePartUri(uri2, packageRelationship.TargetUri);
Uri key = PackUriHelper.Create(uri, partUri);
PackagePart part2 = package.GetPart(partUri);
if (schema.IsValidRequiredResourceMimeType(part2.ValidatedContentType))
{
if (!hashtable.ContainsKey(key))
{
hashtable.Add(key, true);
}
}
else if (!hashtable.ContainsKey(key))
{
hashtable.Add(key, false);
}
}
}
XpsSchemaValidator xpsSchemaValidator = new XpsSchemaValidator(this, schema, mimeType, stream, uri, uri2);
XpsValidatingLoader._validResources.Push(hashtable);
if (rootElement != null)
{
xpsSchemaValidator.XmlReader.MoveToContent();
if (!rootElement.Equals(xpsSchemaValidator.XmlReader.Name))
{
throw new FileFormatException(SR.Get("XpsValidatingLoaderUnsupportedMimeType"));
}
while (xpsSchemaValidator.XmlReader.Read())
{
}
}
else
{
result = XamlReader.Load(xpsSchemaValidator.XmlReader, pc, XamlParseMode.Synchronous, FrameworkCompatibilityPreferences.DisableLegacyDangerousXamlDeserializationMode, safeTypes);
}
XpsValidatingLoader._validResources.Pop();
}
return(result);
}