| public static ResolvePartUri ( Uri sourcePartUri, Uri targetUri ) : Uri | ||
| sourcePartUri | Uri | |
| targetUri | Uri | |
| return | Uri | |
ParsePages()
{
Stream stream = _metroPart.GetStream(FileMode.Open);
//
// If the stream is empty there are no pages to parse
//
if (stream.Length > 0)
{
XmlTextReader reader = new XmlTextReader(stream);
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element && reader.Name == XpsS0Markup.PageContent)
{
string attribute = reader.GetAttribute(XmlTags.Source);
if (attribute != null)
{
Uri relativeUri = new Uri(attribute, UriKind.Relative);
AddPageToCache(PackUriHelper.ResolvePartUri(Uri, relativeUri));
}
}
}
}
}
EnsureDoucmentStructure()
{
// if _xpsSignaturs is not null we have already initialized this
//
if (null != _documentStructure)
{
return;
}
PackageRelationship documentStructureRelationship = null;
PackagePart documentStructurePart = null;
foreach (PackageRelationship rel in _metroPart.GetRelationshipsByType(XpsS0Markup.StructureRelationshipName))
{
if (documentStructureRelationship != null)
{
throw new InvalidDataException(SR.Get(SRID.ReachPackaging_MoreThanOneDocStructure));
}
documentStructureRelationship = rel;
}
if (documentStructureRelationship != null)
{
Uri documentStructureUri = PackUriHelper.ResolvePartUri(documentStructureRelationship.SourceUri,
documentStructureRelationship.TargetUri);
if (CurrentXpsManager.MetroPackage.PartExists(documentStructureUri))
{
documentStructurePart = CurrentXpsManager.MetroPackage.GetPart(documentStructureUri);
_documentStructure = new XpsStructure(CurrentXpsManager, this, documentStructurePart);
}
}
}
ParseDocuments()
{
Stream stream = _metroPart.GetStream(FileMode.Open);
//
// If the stream is empty there are no documents to parse
//
if (stream.Length > 0)
{
XmlTextReader reader = new XmlTextReader(stream);
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element && reader.Name == XpsS0Markup.DocumentReference)
{
string attribute = reader.GetAttribute(XmlTags.Source);
if (attribute != null)
{
Uri relativeUri = new Uri(attribute, UriKind.Relative);
//This routine properly adds DocumentReaderWriter to the _documentCache
AddDocumentToCache(PackUriHelper.ResolvePartUri(Uri, relativeUri));
}
}
}
}
}
// Locate core properties part using the package relationship that points to it.
private PackagePart GetPropertyPart()
{
// Find a package-wide relationship of type CoreDocumentPropertiesRelationshipType.
PackageRelationship corePropertiesRelationship = GetCorePropertiesRelationship();
if (corePropertiesRelationship == null)
{
return(null);
}
// Retrieve the part referenced by its target URI.
if (corePropertiesRelationship.TargetMode != TargetMode.Internal)
{
throw new FileFormatException(SR.NoExternalTargetForMetadataRelationship);
}
PackagePart propertiesPart = null;
Uri propertiesPartUri = PackUriHelper.ResolvePartUri(
PackUriHelper.PackageRootUri,
corePropertiesRelationship.TargetUri);
if (!_package.PartExists(propertiesPartUri))
{
throw new FileFormatException(SR.DanglingMetadataRelationship);
}
propertiesPart = _package.GetPart(propertiesPartUri);
if (!propertiesPart.ValidatedContentType.AreTypeAndSubTypeEqual(s_coreDocumentPropertiesContentType))
{
throw new FileFormatException(SR.WrongContentTypeForPropertyPart);
}
return(propertiesPart);
}
//------------------------------------------------------
//
// Internal Properties
//
//------------------------------------------------------
/// <summary>
/// Get certificate part - null if none
/// </summary>
internal CertificatePart GetCertificatePart()
{
// lazy init
if (_certificatePart == null && !_alreadyLookedForCertPart)
{
PackageRelationshipCollection relationships = SignaturePart.GetRelationshipsByType(
CertificatePart.RelationshipType);
foreach (PackageRelationship relationship in relationships)
{
// don't resolve if external
if (relationship.TargetMode != TargetMode.Internal)
{
throw new FileFormatException(SR.Get(SRID.PackageSignatureCorruption));
}
Uri resolvedUri = PackUriHelper.ResolvePartUri(SignaturePart.Uri, relationship.TargetUri);
// don't create if it doesn't exist
if (!_manager.Package.PartExists(resolvedUri))
{
continue;
}
// find the cert
_certificatePart = new CertificatePart(_manager.Package, resolvedUri);
break;
}
_alreadyLookedForCertPart = true;
}
return(_certificatePart);
}
/// <summary>
/// Resolves the target uri in the relationship against the source part or the
/// package root. This resolved Uri is then used by the Add method to figure
/// out if a relationship is being created to another relationship part.
/// </summary>
/// <param name="target">PackageRelationship target uri</param>
/// <param name="targetMode"> Enum value specifying the interpretation of the base uri
/// for the relationship target uri</param>
/// <returns>Resolved Uri</returns>
private Uri GetResolvedTargetUri(Uri target, TargetMode targetMode)
{
if (targetMode == TargetMode.Internal)
{
Debug.Assert(!target.IsAbsoluteUri, "Uri should be relative at this stage");
if (_sourcePart == null) //indicates that the source is the package root
{
return(PackUriHelper.ResolvePartUri(PackUriHelper.PackageRootUri, target));
}
else
{
return(PackUriHelper.ResolvePartUri(_sourcePart.Uri, target));
}
}
else
{
if (target.IsAbsoluteUri)
{
if (string.Equals(target.Scheme, PackUriHelper.UriSchemePack))
{
return(PackUriHelper.GetPartUri(target));
}
}
else
{
Debug.Fail("Uri should not be relative at this stage");
}
}
// relative to the location of the package.
return(target);
}
void LoadRelationships()
{
relationships = new Dictionary <string, PackageRelationship> ();
if (!PartExists(RelationshipUri))
{
return;
}
using (Stream stream = GetPart(RelationshipUri).GetStream())
{
XmlDocument doc = new XmlDocument();
doc.Load(stream);
XmlNamespaceManager manager = new XmlNamespaceManager(doc.NameTable);
manager.AddNamespace("rel", RelationshipNamespace);
foreach (XmlNode node in doc.SelectNodes("/rel:Relationships/*", manager))
{
TargetMode mode = TargetMode.Internal;
if (node.Attributes["TargetMode"] != null)
{
mode = (TargetMode)Enum.Parse(typeof(TargetMode), node.Attributes ["TargetMode"].Value);
}
Uri uri;
try
{
uri = new Uri(node.Attributes ["Target"].Value.ToString(), UriKind.Relative);
}
catch
{
uri = new Uri(node.Attributes ["Target"].Value.ToString(), UriKind.Absolute);
}
CreateRelationship(uri,
mode,
node.Attributes["Type"].Value.ToString(),
node.Attributes["Id"].Value.ToString(),
true);
}
foreach (PackageRelationship r in relationships.Values)
{
if (r.RelationshipType == System.IO.Packaging.PackageProperties.NSPackagePropertiesRelation)
{
PackagePart part = GetPart(PackUriHelper.ResolvePartUri(Uri, r.TargetUri));
packageProperties = new PackagePropertiesPart();
packageProperties.Package = this;
packageProperties.Part = part;
packageProperties.LoadFrom(part.GetStream());
}
}
}
}
/// <summary>
/// Resolves the target uri in the relationship against the source part or the
/// package root. This resolved Uri is then used by the Add method to figure
/// out if a relationship is being created to another relationship part.
/// </summary>
/// <param name="target">PackageRelationship target uri</param>
/// <param name="targetMode"> Enum value specifying the interpretation of the base uri
/// for the relationship target uri</param>
/// <returns>Resolved Uri</returns>
private Uri GetResolvedTargetUri(Uri target, TargetMode targetMode)
{
Debug.Assert(targetMode == TargetMode.Internal);
Debug.Assert(!target.IsAbsoluteUri, "Uri should be relative at this stage");
if (_sourcePart == null) //indicates that the source is the package root
{
return(PackUriHelper.ResolvePartUri(PackUriHelper.PackageRootUri, target));
}
else
{
return(PackUriHelper.ResolvePartUri(_sourcePart.Uri, target));
}
}
/// <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);
}
