/// <summary>This helper function constructs XmlReader object
/// using provided XML source code.</summary>
/// <param name="xmlSource">Source XML data.</param>
/// <returns>XmlReader object.</returns>
public static XmlReader GetXmlReader(string xmlSource)
{
if (xmlSource.Contains("<!DOCTYPE html>"))
{
const string NewValue = "<!DOCTYPE html PUBLIC " +
"\"-//W3C//DTD XHTML 1.0 Transitional//EN\" " +
"\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">";
xmlSource = xmlSource.Replace("<!DOCTYPE html>", NewValue);
}
if (!xmlSource.Contains("<html xmlns="))
{
xmlSource = xmlSource.Replace("<html", "<html xmlns=\"http://www.w3.org/1999/xhtml\"");
}
var strReader = new StringReader(xmlSource);
var settings = new XmlReaderSettings
{
XmlResolver = new XmlUrlResolverWithCache(),
CheckCharacters = false,
IgnoreComments = true,
IgnoreProcessingInstructions = true,
IgnoreWhitespace = true
};
// For .NET 4.0 and higher DtdProcessing property should be used instead of ProhibitDtd
if (settings.GetType().GetProperty("DtdProcessing") != null)
{
Type t = typeof(XmlReaderSettings).GetProperty("DtdProcessing").PropertyType;
settings.GetType().InvokeMember(
"DtdProcessing",
BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty,
null,
settings,
new[] { Enum.Parse(t, "2") }); // 2 is a value of DtdProcessing.Parse
}
else if (settings.GetType().GetProperty("ProhibitDtd") != null)
{
settings.GetType().InvokeMember(
"ProhibitDtd",
BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty,
null,
settings,
new object[] { false });
}
return(XmlReader.Create(strReader, settings));
}
bool LoadFromStream(Stream stream, string filename,
ICollection <NatvisVisualizerScanner.FileInfo> typeVisualizers)
{
var serializer = new XmlSerializer(typeof(AutoVisualizer));
var settings = new XmlReaderSettings
{
IgnoreComments = true,
IgnoreProcessingInstructions = true,
IgnoreWhitespace = true
};
// set XmlResolver via reflection, if it exists. This is required for desktop CLR, as
// otherwise the XML reader may attempt to hit untrusted external resources.
PropertyInfo xmlResolverProperty = settings.GetType().GetProperty("XmlResolver",
BindingFlags.Public |
BindingFlags
.Instance);
xmlResolverProperty?.SetValue(settings, null);
using (var reader = XmlReader.Create(stream, settings))
{
var autoVis = serializer.Deserialize(reader) as AutoVisualizer;
if (autoVis?.Items == null)
{
return(false);
}
var f = new NatvisVisualizerScanner.FileInfo(autoVis, filename);
foreach (object o in autoVis.Items)
{
if (o is VisualizerType)
{
var v = (VisualizerType)o;
TypeName t = TypeName.Parse(v.Name);
if (t != null)
{
f.Visualizers.Add(new NatvisVisualizerScanner.TypeInfo(t, v));
}
// add an entry for each alternative name too
if (v.AlternativeType != null)
{
foreach (AlternativeTypeType a in v.AlternativeType)
{
t = TypeName.Parse(a.Name);
if (t != null)
{
f.Visualizers.Add(new NatvisVisualizerScanner.TypeInfo(t, v));
}
}
}
}
}
typeVisualizers.Add(f);
return(true);
}
}
private bool LoadFile(string path)
{
try
{
XmlSerializer serializer = new XmlSerializer(typeof(AutoVisualizer));
if (!File.Exists(path))
{
_process.WriteOutput(String.Format(CultureInfo.CurrentCulture, ResourceStrings.FileNotFound, path));
return(false);
}
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreComments = true;
settings.IgnoreProcessingInstructions = true;
settings.IgnoreWhitespace = true;
// set XmlResolver via reflection, if it exists. This is required for desktop CLR, as otherwise the XML reader may
// attempt to hit untrusted external resources.
var xmlResolverProperty = settings.GetType().GetProperty("XmlResolver", BindingFlags.Public | BindingFlags.Instance);
xmlResolverProperty?.SetValue(settings, null);
using (var stream = new System.IO.FileStream(path, FileMode.Open, FileAccess.Read))
using (var reader = XmlReader.Create(stream, settings))
{
AutoVisualizer autoVis = null;
autoVis = serializer.Deserialize(reader) as AutoVisualizer;
if (autoVis != null)
{
FileInfo f = new FileInfo(autoVis);
if (autoVis.Items == null)
{
return(false);
}
foreach (var o in autoVis.Items)
{
if (o is VisualizerType)
{
VisualizerType v = (VisualizerType)o;
TypeName t = TypeName.Parse(v.Name, _process.Logger);
if (t != null)
{
lock (_typeVisualizers)
{
f.Visualizers.Add(new TypeInfo(t, v));
}
}
// add an entry for each alternative name too
if (v.AlternativeType != null)
{
foreach (var a in v.AlternativeType)
{
t = TypeName.Parse(a.Name, _process.Logger);
if (t != null)
{
lock (_typeVisualizers)
{
f.Visualizers.Add(new TypeInfo(t, v));
}
}
}
}
}
else if (o is AliasType)
{
AliasType a = (AliasType)o;
TypeName t = TypeName.Parse(a.Name, _process.Logger);
if (t != null)
{
lock (_typeVisualizers)
{
f.Aliases.Add(new AliasInfo(t, a));
}
}
}
}
_typeVisualizers.Add(f);
}
return(autoVis != null);
}
}
catch (Exception exception)
{
// don't allow natvis failures to stop debugging
_process.WriteOutput(String.Format(CultureInfo.CurrentCulture, ResourceStrings.ErrorReadingFile, exception.Message, path));
return(false);
}
}
public int v4()
{
XmlReaderSettings rs = new XmlReaderSettings();
XmlReaderSettings crs = rs.Clone();
CError.Compare(rs.CheckCharacters, crs.CheckCharacters, "CheckCharacters");
CError.Compare(rs.CloseInput, crs.CloseInput, "CloseInput");
CError.Compare(rs.DtdProcessing, crs.DtdProcessing, "ProhibitDtd");
CError.Compare(rs.IgnoreComments, crs.IgnoreComments, "IgnoreComments");
CError.Compare(rs.IgnoreProcessingInstructions, crs.IgnoreProcessingInstructions, "IgnorePI");
CError.Compare(rs.IgnoreWhitespace, crs.IgnoreWhitespace, "IgnoreWhitespace");
CError.Compare(rs.LineNumberOffset, crs.LineNumberOffset, "LineNumberOffset");
CError.Compare(rs.LinePositionOffset, crs.LinePositionOffset, "LinePositionOffset");
CError.Compare(rs.MaxCharactersInDocument, crs.MaxCharactersInDocument, "maxcharsindoc");
CError.Compare(rs.NameTable, crs.NameTable, "NameTable");
CError.Compare(rs.ConformanceLevel, crs.ConformanceLevel, "ConformanceLevel");
CError.Compare(rs.GetType(), crs.GetType(), "GetType");
return TEST_PASS;
}
public int v3()
{
string readerType = (string)this.Param;
XmlReaderSettings rs = new XmlReaderSettings();
using (XmlReader r = ReaderHelper.CreateReader(readerType, new StringReader("<a/>"), false, null, rs))
{
bool cc = r.Settings.CheckCharacters;
bool closeinput = r.Settings.CloseInput;
DtdProcessing dtd = r.Settings.DtdProcessing;
bool ignorecomm = r.Settings.IgnoreComments;
bool ignorepi = r.Settings.IgnoreProcessingInstructions;
bool ignorewhtsp = r.Settings.IgnoreWhitespace;
int lineNumberOffset = r.Settings.LineNumberOffset;
int linePositionOffset = r.Settings.LinePositionOffset;
long maxcharsindoc = r.Settings.MaxCharactersInDocument;
XmlNameTable nameTable = r.Settings.NameTable;
ConformanceLevel cl = r.Settings.ConformanceLevel;
Type t = r.Settings.GetType();
rs.Reset();
CError.Compare(cc, rs.CheckCharacters, "cc");
CError.Compare(closeinput, rs.CloseInput, "closeinput");
CError.Compare(dtd, rs.DtdProcessing, "dtd");
CError.Compare(ignorecomm, rs.IgnoreComments, "ignorecomm");
CError.Compare(ignorepi, rs.IgnoreProcessingInstructions, "ignorepi");
CError.Compare(ignorewhtsp, rs.IgnoreWhitespace, "ignorewhtsp");
CError.Compare(lineNumberOffset, rs.LineNumberOffset, "lineNumberOffset");
CError.Compare(linePositionOffset, rs.LinePositionOffset, "linePositionOffset");
CError.Compare(maxcharsindoc, rs.MaxCharactersInDocument, "maxcharsindoc");
CError.Compare(nameTable, rs.NameTable, "nameTable");
CError.Compare(cl, rs.ConformanceLevel, "cl");
CError.Compare(t, rs.GetType(), "t");
return TEST_PASS;
}
}
public static XmlReader OpenXml(string content)
{
var settings = new XmlReaderSettings();
settings.CloseInput = true;
settings.IgnoreComments = true;
settings.IgnoreProcessingInstructions = true;
settings.IgnoreWhitespace = true;
settings.NameTable = new NameTable();
// set XmlResolver via reflection, if it exists. This is required for desktop CLR, as otherwise the XML reader may
// attempt to hit untrusted external resources.
var xmlResolverProperty = settings.GetType().GetProperty("XmlResolver", BindingFlags.Public | BindingFlags.Instance);
xmlResolverProperty?.SetValue(settings, null);
// Create our own namespace manager so that we can set the default namespace
// We need this because the XML serializer requires correct namespaces,
// but project systems may not provide it.
XmlNamespaceManager namespaceManager = new XmlNamespaceManager(settings.NameTable);
namespaceManager.AddNamespace(string.Empty, XmlNamespace);
XmlParserContext context = new XmlParserContext(settings.NameTable, namespaceManager, string.Empty, XmlSpace.None);
StringReader stringReader = null;
XmlReader reader = null;
bool success = false;
try
{
stringReader = new StringReader(content);
reader = XmlReader.Create(stringReader, settings, context);
// Read to the top level element
while (reader.NodeType != XmlNodeType.Element)
{
reader.Read();
}
if (reader.NamespaceURI != XmlNamespace)
{
throw new XmlException(string.Format(CultureInfo.CurrentCulture, MICoreResources.Error_UnknownXmlElement, reader.Name));
}
success = true;
return(reader);
}
finally
{
if (!success)
{
if (reader != null)
{
reader.Dispose();
}
else if (stringReader != null)
{
// NOTE: the reader will close the input, so we only want to do this
// if we failed to create the reader.
stringReader.Dispose();
}
}
}
}