public override int Read()
{
// Read each character, skipping over characters that XML has prohibited
int nextCharacter;
do
{
// Read a character
if ((nextCharacter = base.Read()) == EOF)
{
// If the character denotes the end of the file, stop reading
break;
}
}
// Skip the character if it's prohibited, and try the next
while (!XmlSanitizingStream.IsLegalXmlChar(nextCharacter));
return(nextCharacter);
}
public override int Peek()
{
// Return the next legl XML character without reading it
int nextCharacter;
do
{
// See what the next character is
nextCharacter = base.Peek();
}while
(
// If it's prohibited XML, skip over the character in the stream
// and try the next.
!XmlSanitizingStream.IsLegalXmlChar(nextCharacter) &&
(nextCharacter = base.Read()) != EOF
);
return(nextCharacter);
} // method
private CatalogFolderModel ConvertToFolder(StringBuilder opdsSource, string url)
{
try
{
CatalogContentDto dto;
using (var stringReader = new MemoryStream(Encoding.UTF8.GetBytes(opdsSource.ToString())))
{
using (var sanitizingStream = new XmlSanitizingStream(stringReader))
{
var xmlSerializer = new XmlSerializer(typeof(CatalogContentDto));
dto = (CatalogContentDto)xmlSerializer.Deserialize(sanitizingStream);
}
}
var folder = dto.ToFolder(CatalogModel.Url, CatalogModel.Type, CatalogId);
folder.BaseUrl = url;
return folder;
}
catch (InvalidOperationException exp)
{
if (ValidateForHtmlContent(exp))
{
throw new WrongCatalogFormatException(exp.Message, url);
}
throw new ReadCatalogException("Unable convert OPDS data to folder", exp);
}
}
/// <summary>
/// Get whether an integer represents a legal XML 1.0 character. See the
/// specification at w3.org for these characters.
/// </summary>
public static bool IsLegalXmlChar(int character)
{
return(XmlSanitizingStream.IsLegalXmlChar("1.0", character));
}
