//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Preparing DOM
// Load XML from a URI; this runs on caller thread of BeginQuery (Refresh/InitialLoad)
private void LoadFromSource()
{
// convert the Source into an absolute URI
Uri sourceUri = this.Source;
if (sourceUri.IsAbsoluteUri == false)
{
Uri baseUri = (_baseUri != null) ? _baseUri : BindUriHelper.BaseUri;
sourceUri = BindUriHelper.GetResolvedUri(baseUri, sourceUri);
}
// create a request to load the content
// Ideally we would want to use RegisterPrefix and WebRequest.Create.
// However, these two functions regress 700k working set in System.dll and System.xml.dll
// which is mostly for logging and config.
// Call PackWebRequestFactory.CreateWebRequest to bypass the regression if possible
// by calling Create on PackWebRequest if uri is pack scheme
WebRequest request = PackWebRequestFactory.CreateWebRequest(sourceUri);
if (request == null)
{
throw new Exception(SR.Get(SRID.WebRequestCreationFailed));
}
// load it on a worker thread ?
if (IsAsynchronous)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(CreateDocFromExternalSourceAsynch),
request);
}
else
{
CreateDocFromExternalSource(request);
}
}
public Stream GetStream()
{
if (IsFile)
{
FileMapping fileMapping = new FileMapping();
DemandFileIOPermission();
fileMapping.OpenFile(_fontUri.LocalPath);
return(fileMapping);
}
byte[] bits;
// Try our cache first.
lock (_resourceCache)
{
bits = _resourceCache.Get(_fontUri);
}
if (bits != null)
{
return(new MemoryStream(bits));
}
Stream fontStream;
if (_isInternalCompositeFont)
{
// We should read this font from our framework resources
fontStream = GetCompositeFontResourceStream();
}
else
{
WebRequest request = PackWebRequestFactory.CreateWebRequest(_fontUri);
WebResponse response = request.GetResponse();
fontStream = response.GetResponseStream();
if (String.Equals(response.ContentType, ObfuscatedContentType, StringComparison.Ordinal))
{
// The third parameter makes sure the original stream is closed
// when the deobfuscating stream is disposed.
fontStream = new DeobfuscatingStream(fontStream, _fontUri, false);
}
}
return(fontStream);
}
// Token: 0x06001CDD RID: 7389 RVA: 0x00086CD8 File Offset: 0x00084ED8
private void LoadFromSource()
{
Uri uri = this.Source;
if (!uri.IsAbsoluteUri)
{
Uri baseUri = (this._baseUri != null) ? this._baseUri : BindUriHelper.BaseUri;
uri = BindUriHelper.GetResolvedUri(baseUri, uri);
}
WebRequest webRequest = PackWebRequestFactory.CreateWebRequest(uri);
if (webRequest == null)
{
throw new Exception(SR.Get("WebRequestCreationFailed"));
}
if (this.IsAsynchronous)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(this.CreateDocFromExternalSourceAsynch), webRequest);
return;
}
this.CreateDocFromExternalSource(webRequest);
}
internal static WebRequest CreateRequest(Uri uri)
{
// Ideally we would want to use RegisterPrefix and WebRequest.Create.
// However, these two functions regress 700k working set in System.dll and System.xml.dll
// which is mostly for logging and config.
// Call PackWebRequestFactory.CreateWebRequest to bypass the regression if possible
// by calling Create on PackWebRequest if uri is pack scheme
if (string.Compare(uri.Scheme, PackUriHelper.UriSchemePack, StringComparison.Ordinal) == 0)
{
return(PackWebRequestFactory.CreateWebRequest(uri));
// The PackWebRequest may end up creating a "real" web request as its inner request.
// It will then call this method again.
}
// Work around the issue with FileWebRequest not handling #.
// FileWebRequest doesn't support the concept of query and fragment.
if (uri.IsFile)
{
uri = new Uri(uri.GetLeftPart(UriPartial.Path));
}
WebRequest request = WebRequest.Create(uri);
// It is not clear whether WebRequest.Create() can ever return null, but v1 code make this check in
// a couple of places, so it is still done here, just in case.
if (request == null)
{
// Unfortunately, there is no appropriate exception string in PresentationCore, and for v3.5
// we have a total resource freeze. So just report WebExceptionStatus.RequestCanceled:
// "The request was canceled, the WebRequest.Abort method was called, or an unclassifiable error
// occurred. This is the default value for Status."
Uri requestUri = BaseUriHelper.PackAppBaseUri.MakeRelativeUri(uri);
throw new WebException(requestUri.ToString(), WebExceptionStatus.RequestCanceled);
//throw new IOException(SR.Get(SRID.GetResponseFailed, requestUri.ToString()));
}
HttpWebRequest httpRequest = request as HttpWebRequest;
if (httpRequest != null)
{
if (string.IsNullOrEmpty(httpRequest.UserAgent))
{
httpRequest.UserAgent = DefaultUserAgent;
}
CookieHandler.HandleWebRequest(httpRequest);
if (String.IsNullOrEmpty(httpRequest.Referer))
{
httpRequest.Referer = BindUriHelper.GetReferer(uri);
}
CustomCredentialPolicy.EnsureCustomCredentialPolicy();
// Enable NTLM authentication.
// This is safe to do thanks to the CustomCredentialPolicy.
httpRequest.UseDefaultCredentials = true;
}
return(request);
}
