/// <summary>
/// This is the click handler for the 'scenario3BtnBuffer' button. You would replace this with your own handler
/// if you have a button or buttons on this page.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void Scenario3BtnBuffer_Click(object sender, RoutedEventArgs e)
{
try
{
// Get load settings
var loadSettings = new Windows.Data.Xml.Dom.XmlLoadSettings();
if (true == scenario3RB1.IsChecked)
{
loadSettings.ProhibitDtd = true; // DTD is prohibited
loadSettings.ResolveExternals = false; // Disable the resolve to external definitions such as external DTD
}
else if (true == scenario3RB2.IsChecked)
{
loadSettings.ProhibitDtd = false; // DTD is not prohibited
loadSettings.ResolveExternals = false; // Disable the resolve to external definitions such as external DTD
}
else if (true == scenario3RB3.IsChecked)
{
loadSettings.ProhibitDtd = false; // DTD is not prohibited
loadSettings.ResolveExternals = true; // Enable the resolve to external definitions such as external DTD
}
String xml;
scenario3OriginalData.Document.GetText(Windows.UI.Text.TextGetOptions.None, out xml);
// Set external dtd file path
if (loadSettings.ResolveExternals == true && loadSettings.ProhibitDtd == false)
{
Windows.Storage.StorageFolder storageFolder = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFolderAsync("loadExternaldtd");
String dtdPath = storageFolder.Path + "\\dtd.txt";
xml = xml.Replace("dtd.txt", dtdPath);
}
var dataWriter = new Windows.Storage.Streams.DataWriter();
dataWriter.WriteString(xml);
Windows.Storage.Streams.IBuffer ibuffer = dataWriter.DetachBuffer();
var doc = new Windows.Data.Xml.Dom.XmlDocument();
doc.LoadXmlFromBuffer(ibuffer, loadSettings);
Scenario.RichEditBoxSetMsg(scenario3Result, doc.GetXml(), true);
}
catch (Exception)
{
// After loadSettings.ProhibitDtd is set to true, the exception is expected as the sample XML contains DTD
Scenario.RichEditBoxSetError(scenario3Result, "Error: DTD is prohibited");
}
}
internal async Task <Windows.Data.Xml.Dom.XmlDocument> LoadManifestAsync(string url)
{
Uri uri = null;
IBuffer buffer = null;
try
{
uri = new Uri(url);
}
catch
{
#if DEBUG
Logger.Log("Bad url: " + url);
#endif
throw new Exception("Invalid URL");
}
buffer = await Downloader.DownloadBufferAsync(uri);
if (buffer == null)
{
#if DEBUG
Logger.Log("Failed to get buffer of manifest");
#endif
throw new Exception("Failed to get buffer from url");
}
Windows.Data.Xml.Dom.XmlDocument document = new Windows.Data.Xml.Dom.XmlDocument();
try
{
var bufferString = DataReader.FromBuffer(buffer).ReadString(buffer.Length);
document.LoadXmlFromBuffer(buffer);
}
catch (Exception e)
{
#if DEBUG
Logger.Log("Failed to load XML from buffer = " + Logger.Display(e));
#endif
throw new Exception("Invalid XML file");
}
return(document);
}
/// <summary>
/// This is the click handler for the 'scenario3BtnBuffer' button. You would replace this with your own handler
/// if you have a button or buttons on this page.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void Scenario3BtnBuffer_Click(object sender, RoutedEventArgs e)
{
try
{
// Get load settings
var loadSettings = new Windows.Data.Xml.Dom.XmlLoadSettings();
if (true == scenario3RB1.IsChecked)
{
loadSettings.ProhibitDtd = true; // DTD is prohibited
loadSettings.ResolveExternals = false; // Disable the resolve to external definitions such as external DTD
}
else if (true == scenario3RB2.IsChecked)
{
loadSettings.ProhibitDtd = false; // DTD is not prohibited
loadSettings.ResolveExternals = false; // Disable the resolve to external definitions such as external DTD
}
else if (true == scenario3RB3.IsChecked)
{
loadSettings.ProhibitDtd = false; // DTD is not prohibited
loadSettings.ResolveExternals = true; // Enable the resolve to external definitions such as external DTD
}
String xml;
scenario3OriginalData.Document.GetText(Windows.UI.Text.TextGetOptions.None, out xml);
// Set external dtd file path
if (loadSettings.ResolveExternals == true && loadSettings.ProhibitDtd == false)
{
Windows.Storage.StorageFolder storageFolder = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFolderAsync("loadExternaldtd");
String dtdPath = storageFolder.Path + "\\dtd.txt";
xml = xml.Replace("dtd.txt", dtdPath);
}
var dataWriter = new Windows.Storage.Streams.DataWriter();
dataWriter.WriteString(xml);
Windows.Storage.Streams.IBuffer ibuffer = dataWriter.DetachBuffer();
var doc = new Windows.Data.Xml.Dom.XmlDocument();
doc.LoadXmlFromBuffer(ibuffer, loadSettings);
Scenario.RichEditBoxSetMsg(scenario3Result, doc.GetXml(), true);
}
catch (Exception)
{
// After loadSettings.ProhibitDtd is set to true, the exception is expected as the sample XML contains DTD
Scenario.RichEditBoxSetError(scenario3Result, "Error: DTD is prohibited");
}
}
internal async Task<Windows.Data.Xml.Dom.XmlDocument> LoadManifestAsync(string url)
{
Uri uri = null;
IBuffer buffer = null;
try
{
uri = new Uri(url);
}
catch
{
#if DEBUG
Logger.Log("Bad url: " + url);
#endif
throw new Exception("Invalid URL");
}
buffer = await Downloader.DownloadBufferAsync(uri);
if (buffer == null)
{
#if DEBUG
Logger.Log("Failed to get buffer of manifest");
#endif
throw new Exception("Failed to get buffer from url");
}
Windows.Data.Xml.Dom.XmlDocument document = new Windows.Data.Xml.Dom.XmlDocument();
try
{
var bufferString = DataReader.FromBuffer(buffer).ReadString(buffer.Length);
document.LoadXmlFromBuffer(buffer);
}
catch (Exception e)
{
#if DEBUG
Logger.Log("Failed to load XML from buffer = " + Logger.Display(e));
#endif
throw new Exception("Invalid XML file");
}
return document;
}
