/// <devdoc>
/// Gets an XmlReader representing XML or XSL content, and optionally a cache
/// dependency for that content.
/// Supported paths are: Relative paths, physical paths, UNC paths, and HTTP URLs
/// If a path is not provided, the content parameter is assumed to contain the
/// actual content.
/// If there is no data, null is returned.
/// This method is fully compatible with Virtual Path Providers.
/// </devdoc>
private XmlReader GetReader(string path, string content, out CacheDependency cacheDependency)
{
// If a filename is specified, load from file. Otherwise load from inner content.
if (path.Length != 0)
{
// First try to detect if it is an HTTP URL
Uri uri;
bool success = Uri.TryCreate(path, UriKind.Absolute, out uri);
if (success)
{
if (uri.Scheme == Uri.UriSchemeHttp)
{
// Check for Web permissions for the URL we want
if (!HttpRuntime.HasWebPermission(uri))
{
throw new InvalidOperationException(SR.GetString(SR.XmlDataSource_NoWebPermission, uri.PathAndQuery, ID));
}
// Dependencies are not supported with HTTP URLs
cacheDependency = null;
// If it is an HTTP URL and we have permissions, get a reader
return(XmlUtils.CreateXmlReader(path));
}
}
// Now see what kind of file-based path it is
VirtualPath virtualPath;
string physicalPath;
ResolvePhysicalOrVirtualPath(path, out virtualPath, out physicalPath);
if (virtualPath != null && DesignMode)
{
// This exception should never be thrown - the designer always maps paths
// before using the runtime control.
throw new NotSupportedException(SR.GetString(SR.XmlDataSource_DesignTimeRelativePathsNotSupported, ID));
}
Stream dataStream = OpenFileAndGetDependency(virtualPath, physicalPath, out cacheDependency);
return(XmlUtils.CreateXmlReader(dataStream));
}
else
{
// Dependencies are not supported with inline content
cacheDependency = null;
content = content.Trim();
if (content.Length == 0)
{
return(null);
}
else
{
return(XmlUtils.CreateXmlReader(new StringReader(content)));
}
}
}
private XmlReader GetReader(string path, string content, out CacheDependency cacheDependency)
{
if (path.Length != 0)
{
Uri uri;
VirtualPath path2;
string str;
if (Uri.TryCreate(path, UriKind.Absolute, out uri) && (uri.Scheme == Uri.UriSchemeHttp))
{
if (!HttpRuntime.HasWebPermission(uri))
{
throw new InvalidOperationException(System.Web.SR.GetString("XmlDataSource_NoWebPermission", new object[] { uri.PathAndQuery, this.ID }));
}
cacheDependency = null;
if (AppSettings.RestrictXmlControls)
{
return(new NoEntitiesXmlReader(path));
}
return(new XmlTextReader(path));
}
base.ResolvePhysicalOrVirtualPath(path, out path2, out str);
if ((path2 != null) && base.DesignMode)
{
throw new NotSupportedException(System.Web.SR.GetString("XmlDataSource_DesignTimeRelativePathsNotSupported", new object[] { this.ID }));
}
Stream datastream = base.OpenFileAndGetDependency(path2, str, out cacheDependency);
if (AppSettings.RestrictXmlControls)
{
return(new NoEntitiesXmlReader(datastream));
}
return(new XmlTextReader(datastream));
}
cacheDependency = null;
content = content.Trim();
if (content.Length == 0)
{
return(null);
}
if (AppSettings.RestrictXmlControls)
{
return(new NoEntitiesXmlReader(new StringReader(content)));
}
return(new XmlTextReader(new StringReader(content)));
}