| public static GetPackageUri ( Uri packUri ) : Uri | ||
| packUri | Uri | |
| return | Uri | |
static BaseUriHelper()
{
_baseUri = new SecurityCriticalDataForSet <Uri>(_packAppBaseUri);
// Add an instance of the ResourceContainer to PreloadedPackages so that PackWebRequestFactory can find it
// and mark it as thread-safe so PackWebResponse won't protect returned streams with a synchronizing wrapper
PreloadedPackages.AddPackage(PackUriHelper.GetPackageUri(SiteOfOriginBaseUri), new SiteOfOriginContainer(), true);
}
static internal Uri MakeRelativeToSiteOfOriginIfPossible(Uri sUri)
{
if (Uri.Compare(sUri, SiteOfOriginBaseUri, UriComponents.Scheme, UriFormat.UriEscaped, StringComparison.OrdinalIgnoreCase) == 0)
{
Uri packageUri = PackUriHelper.GetPackageUri(sUri);
if (String.Compare(packageUri.GetComponents(UriComponents.AbsoluteUri, UriFormat.UriEscaped), _packageSiteOfOriginBaseUriEscaped, StringComparison.OrdinalIgnoreCase) == 0)
{
return((new Uri(sUri.GetComponents(UriComponents.SchemeAndServer, UriFormat.UriEscaped))).MakeRelativeUri(sUri));
}
}
return(sUri);
}
/// <summary>
/// Checks whether the input uri is in the "pack://application:,,," form
/// </summary>
internal static bool IsPackApplicationUri(Uri uri)
{
return
// Is the "outer" URI absolute?
(uri.IsAbsoluteUri &&
// Does the "outer" URI have the pack: scheme?
SecurityHelper.AreStringTypesEqual(uri.Scheme, System.IO.Packaging.PackUriHelper.UriSchemePack) &&
// Does the "inner" URI have the application: scheme
SecurityHelper.AreStringTypesEqual(
PackUriHelper.GetPackageUri(uri).GetComponents(UriComponents.AbsoluteUri, UriFormat.UriEscaped),
_packageApplicationBaseUriEscaped));
}
/// <summary>
/// rootElement == null: Load elements, validation of root element will occur in caller by checking object type or casting
/// rootElement != null: Only perform validation, and expect rootElement at root of markup
/// </summary>
/// <param name="stream"></param>
/// <param name="parentUri"></param>
/// <param name="pc"></param>
/// <param name="mimeType"></param>
/// <param name="rootElement"></param>
/// <returns></returns>
private object Load(Stream stream, Uri parentUri, ParserContext pc, ContentType mimeType, string rootElement)
{
object obj = null;
if (!DocumentMode)
{ // Loose XAML, just check against schema, don't check content type
if (rootElement == null)
{
obj = XamlReader.Load(stream, pc);
}
}
else
{ // inside an XPS Document. Perform maximum validation
XpsSchema schema = XpsSchema.GetSchema(mimeType);
Uri uri = pc.BaseUri;
Uri packageUri = PackUriHelper.GetPackageUri(uri);
Uri partUri = PackUriHelper.GetPartUri(uri);
Package package = PreloadedPackages.GetPackage(packageUri);
Uri parentPackageUri = null;
if (parentUri != null)
{
parentPackageUri = PackUriHelper.GetPackageUri(parentUri);
if (!parentPackageUri.Equals(packageUri))
{
throw new FileFormatException(SR.Get(SRID.XpsValidatingLoaderUriNotInSamePackage));
}
}
schema.ValidateRelationships(new SecurityCriticalData <Package>(package), packageUri, partUri, mimeType);
if (schema.AllowsMultipleReferencesToSameUri(mimeType))
{
_uniqueUriRef = null;
}
else
{
_uniqueUriRef = new Hashtable(11);
}
Hashtable validResources = (_validResources.Count > 0 ? _validResources.Peek() : null);
if (schema.HasRequiredResources(mimeType))
{
validResources = new Hashtable(11);
PackagePart part = package.GetPart(partUri);
PackageRelationshipCollection requiredResources = part.GetRelationshipsByType(_requiredResourceRel);
foreach (PackageRelationship relationShip in requiredResources)
{
Uri targetUri = PackUriHelper.ResolvePartUri(partUri, relationShip.TargetUri);
Uri absTargetUri = PackUriHelper.Create(packageUri, targetUri);
PackagePart targetPart = package.GetPart(targetUri);
if (schema.IsValidRequiredResourceMimeType(targetPart.ValidatedContentType()))
{
if (!validResources.ContainsKey(absTargetUri))
{
validResources.Add(absTargetUri, true);
}
}
else
{
if (!validResources.ContainsKey(absTargetUri))
{
validResources.Add(absTargetUri, false);
}
}
}
}
XpsSchemaValidator xpsSchemaValidator = new XpsSchemaValidator(this, schema, mimeType,
stream, packageUri, partUri);
_validResources.Push(validResources);
if (rootElement != null)
{
xpsSchemaValidator.XmlReader.MoveToContent();
if (!rootElement.Equals(xpsSchemaValidator.XmlReader.Name))
{
throw new FileFormatException(SR.Get(SRID.XpsValidatingLoaderUnsupportedMimeType));
}
while (xpsSchemaValidator.XmlReader.Read())
{
;
}
}
else
{
obj = XamlReader.Load(xpsSchemaValidator.XmlReader,
pc,
XamlParseMode.Synchronous);
}
_validResources.Pop();
}
return(obj);
}
