protected SyndicationFeed(SyndicationFeed source, bool cloneItems)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
_authors = FeedUtils.ClonePersons(source._authors);
_categories = FeedUtils.CloneCategories(source._categories);
_contributors = FeedUtils.ClonePersons(source._contributors);
_copyright = FeedUtils.CloneTextContent(source._copyright);
_description = FeedUtils.CloneTextContent(source._description);
_extensions = source._extensions.Clone();
_generator = source._generator;
_id = source._id;
_imageUrl = source._imageUrl;
_language = source._language;
_lastUpdatedTime = source._lastUpdatedTime;
_links = FeedUtils.CloneLinks(source._links);
_title = FeedUtils.CloneTextContent(source._title);
_baseUri = source._baseUri;
IList <SyndicationItem> srcList = source._items as IList <SyndicationItem>;
if (srcList != null)
{
Collection <SyndicationItem> tmp = new NullNotAllowedCollection <SyndicationItem>();
for (int i = 0; i < srcList.Count; ++i)
{
tmp.Add((cloneItems) ? srcList[i].Clone() : srcList[i]);
}
_items = tmp;
}
else
{
if (cloneItems)
{
throw new InvalidOperationException(SR.UnbufferedItemsCannotBeCloned);
}
_items = source._items;
}
}
private async Task WriteCollectionAsync(XmlWriter writer, ResourceCollectionInfo collection, Uri baseUri)
{
await writer.WriteStartElementAsync(App10Constants.Prefix, App10Constants.Collection, App10Constants.Namespace);
Uri baseUriToWrite = FeedUtils.GetBaseUriToWrite(baseUri, collection.BaseUri);
if (baseUriToWrite != null)
{
baseUri = collection.BaseUri;
WriteXmlBase(writer, baseUriToWrite);
}
if (collection.Link != null)
{
await writer.WriteAttributeStringAsync(App10Constants.Href, FeedUtils.GetUriString(collection.Link));
}
await WriteAttributeExtensionsAsync(writer, collection, this.Version);
if (collection.Title != null)
{
await collection.Title.WriteToAsync(writer, Atom10Constants.TitleTag, Atom10Constants.Atom10Namespace);
}
for (int i = 0; i < collection.Accepts.Count; ++i)
{
await writer.WriteElementStringAsync(App10Constants.Prefix, App10Constants.Accept, App10Constants.Namespace, collection.Accepts[i]);
}
for (int i = 0; i < collection.Categories.Count; ++i)
{
await WriteCategoriesAsync(writer, collection.Categories[i], baseUri, this.Version);
}
await WriteElementExtensionsAsync(writer, collection, this.Version);
await writer.WriteEndElementAsync();
}
internal static async Task WriteCategoriesInnerXml(XmlWriter writer, CategoriesDocument categories, Uri baseUri, string version)
{
Uri baseUriToWrite = FeedUtils.GetBaseUriToWrite(baseUri, categories.BaseUri);
if (baseUriToWrite != null)
{
WriteXmlBase(writer, baseUriToWrite);
}
if (!string.IsNullOrEmpty(categories.Language))
{
WriteXmlLang(writer, categories.Language);
}
if (categories.IsInline)
{
await WriteInlineCategoriesContentAsync(XmlWriterWrapper.CreateFromWriter(writer), (InlineCategoriesDocument)categories, version);
}
else
{
WriteReferencedCategoriesContent(writer, (ReferencedCategoriesDocument)categories, version);
}
}
private async Task <Workspace> ReadWorkspace(XmlReaderWrapper reader, ServiceDocument document)
{
Workspace result = CreateWorkspace(document);
result.BaseUri = document.BaseUri;
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
result.BaseUri = FeedUtils.CombineXmlBase(result.BaseUri, await reader.GetValueAsync());
}
else
{
string ns = reader.NamespaceURI;
string name = reader.LocalName;
if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
{
continue;
}
string val = await reader.GetValueAsync();
if (!TryParseAttribute(name, ns, val, result, this.Version))
{
if (_preserveAttributeExtensions)
{
result.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), val);
}
}
}
}
}
XmlBuffer buffer = null;
XmlDictionaryWriter extWriter = null;
await reader.ReadStartElementAsync();
try
{
while (await reader.IsStartElementAsync())
{
if (await reader.IsStartElementAsync(Atom10Constants.TitleTag, Atom10Constants.Atom10Namespace))
{
result.Title = await new Atom10FeedFormatter().ReadTextContentFromAsync(reader, "//app:service/app:workspace/atom:title[@type]", _preserveAttributeExtensions);
}
else if (await reader.IsStartElementAsync(App10Constants.Collection, App10Constants.Namespace))
{
result.Collections.Add(ReadCollection(reader, result).Result);
}
else if (!TryParseElement(reader, result, this.Version))
{
if (_preserveElementExtensions)
{
var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize);
buffer = tuple.Item1;
extWriter = tuple.Item2;
}
else
{
await reader.SkipAsync();
}
}
}
LoadElementExtensions(buffer, extWriter, result);
}
finally
{
if (extWriter != null)
{
extWriter.Close();
}
}
await reader.ReadEndElementAsync();
return(result);
}
private async Task ReadDocumentAsync(XmlReaderWrapper reader)
{
ServiceDocument result = CreateDocumentInstance();
try
{
await SyndicationFeedFormatter.MoveToStartElementAsync(reader);
bool elementIsEmpty = reader.IsEmptyElement;
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
result.Language = await reader.GetValueAsync();
}
else if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
result.BaseUri = new Uri(await reader.GetValueAsync(), UriKind.RelativeOrAbsolute);
}
else
{
string ns = reader.NamespaceURI;
string name = reader.LocalName;
if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
{
continue;
}
string val = await reader.GetValueAsync();
if (!TryParseAttribute(name, ns, val, result, this.Version))
{
if (_preserveAttributeExtensions)
{
result.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), val);
}
}
}
}
}
XmlBuffer buffer = null;
XmlDictionaryWriter extWriter = null;
await reader.ReadStartElementAsync();
if (!elementIsEmpty)
{
try
{
while (await reader.IsStartElementAsync())
{
if (await reader.IsStartElementAsync(App10Constants.Workspace, App10Constants.Namespace))
{
result.Workspaces.Add(ReadWorkspace(reader, result).Result);
}
else if (!TryParseElement(reader, result, this.Version))
{
if (_preserveElementExtensions)
{
var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize);
buffer = tuple.Item1;
extWriter = tuple.Item2;
}
else
{
await reader.SkipAsync();
}
}
}
LoadElementExtensions(buffer, extWriter, result);
}
finally
{
if (extWriter != null)
{
extWriter.Close();
}
}
}
await reader.ReadEndElementAsync();
}
catch (FormatException e)
{
throw new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e);
}
catch (ArgumentException e)
{
new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e);
}
SetDocument(result);
}
private async Task <ResourceCollectionInfo> ReadCollection(XmlReaderWrapper reader, Workspace workspace)
{
ResourceCollectionInfo result = CreateCollection(workspace);
result.BaseUri = workspace.BaseUri;
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
result.BaseUri = FeedUtils.CombineXmlBase(result.BaseUri, await reader.GetValueAsync());
}
else if (reader.LocalName == App10Constants.Href && reader.NamespaceURI == string.Empty)
{
result.Link = new Uri(await reader.GetValueAsync(), UriKind.RelativeOrAbsolute);
}
else
{
string ns = reader.NamespaceURI;
string name = reader.LocalName;
if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
{
continue;
}
string val = await reader.GetValueAsync();
if (!TryParseAttribute(name, ns, val, result, this.Version))
{
if (_preserveAttributeExtensions)
{
result.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), val);
}
}
}
}
}
XmlBuffer buffer = null;
XmlDictionaryWriter extWriter = null;
reader.ReadStartElement();
try
{
while (await reader.IsStartElementAsync())
{
if (await reader.IsStartElementAsync(Atom10Constants.TitleTag, Atom10Constants.Atom10Namespace))
{
result.Title = await new Atom10FeedFormatter().ReadTextContentFromAsync(reader, "//app:service/app:workspace/app:collection/atom:title[@type]", _preserveAttributeExtensions);
}
else if (await reader.IsStartElementAsync(App10Constants.Categories, App10Constants.Namespace))
{
result.Categories.Add(await ReadCategories(reader,
result.BaseUri,
delegate()
{
return(CreateInlineCategories(result));
},
delegate()
{
return(CreateReferencedCategories(result));
},
this.Version,
_preserveElementExtensions,
_preserveAttributeExtensions,
_maxExtensionSize));
}
else if (await reader.IsStartElementAsync(App10Constants.Accept, App10Constants.Namespace))
{
result.Accepts.Add(reader.ReadElementString());
}
else if (!TryParseElement(reader, result, this.Version))
{
if (_preserveElementExtensions)
{
if (buffer == null)
{
buffer = new XmlBuffer(_maxExtensionSize);
extWriter = buffer.OpenSection(XmlDictionaryReaderQuotas.Max);
extWriter.WriteStartElement(Rss20Constants.ExtensionWrapperTag);
}
await XmlReaderWrapper.WriteNodeAsync(extWriter, reader, false);
}
else
{
reader.Skip();
}
}
}
LoadElementExtensions(buffer, extWriter, result);
}
finally
{
if (extWriter != null)
{
extWriter.Close();
}
}
reader.ReadEndElement();
return(result);
}
private static void WriteXmlBase(XmlWriter writer, Uri baseUri)
{
writer.WriteAttributeString("xml", "base", Atom10FeedFormatter.XmlNs, FeedUtils.GetUriString(baseUri));
}
private static async Task ReadReferencedCategoriesAsync(XmlReaderWrapper reader, ReferencedCategoriesDocument referencedCategories, Uri baseUri, Uri link, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
{
referencedCategories.BaseUri = baseUri;
referencedCategories.Link = link;
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
referencedCategories.BaseUri = FeedUtils.CombineXmlBase(referencedCategories.BaseUri, await reader.GetValueAsync());
}
else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
referencedCategories.Language = await reader.GetValueAsync();
}
else if (reader.LocalName == App10Constants.Href && reader.NamespaceURI == string.Empty)
{
continue;
}
else
{
string ns = reader.NamespaceURI;
string name = reader.LocalName;
if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
{
continue;
}
string val = await reader.GetValueAsync();
if (!TryParseAttribute(name, ns, val, referencedCategories, version))
{
if (preserveAttributeExtensions)
{
referencedCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), await reader.GetValueAsync());
}
}
}
}
}
reader.MoveToElement();
bool isEmptyElement = reader.IsEmptyElement;
await reader.ReadStartElementAsync();
if (!isEmptyElement)
{
XmlBuffer buffer = null;
XmlDictionaryWriter extWriter = null;
try
{
while (await reader.IsStartElementAsync())
{
if (!TryParseElement(reader, referencedCategories, version))
{
if (preserveElementExtensions)
{
var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, maxExtensionSize);
buffer = tuple.Item1;
extWriter = tuple.Item2;
}
}
}
LoadElementExtensions(buffer, extWriter, referencedCategories);
}
finally
{
if (extWriter != null)
{
extWriter.Close();
}
}
await reader.ReadEndElementAsync();
}
}
private static async Task ReadInlineCategoriesAsync(XmlReaderWrapper reader, InlineCategoriesDocument inlineCategories, Uri baseUri, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int _maxExtensionSize)
{
inlineCategories.BaseUri = baseUri;
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
if (reader.LocalName == "base" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
inlineCategories.BaseUri = FeedUtils.CombineXmlBase(inlineCategories.BaseUri, await reader.GetValueAsync());
}
else if (reader.LocalName == "lang" && reader.NamespaceURI == Atom10FeedFormatter.XmlNs)
{
inlineCategories.Language = await reader.GetValueAsync();
}
else if (reader.LocalName == App10Constants.Fixed && reader.NamespaceURI == string.Empty)
{
inlineCategories.IsFixed = (reader.Value == "yes");
}
else if (reader.LocalName == Atom10Constants.SchemeTag && reader.NamespaceURI == string.Empty)
{
inlineCategories.Scheme = await reader.GetValueAsync();
}
else
{
string ns = reader.NamespaceURI;
string name = reader.LocalName;
if (FeedUtils.IsXmlns(name, ns) || FeedUtils.IsXmlSchemaType(name, ns))
{
continue;
}
string val = await reader.GetValueAsync();
if (!TryParseAttribute(name, ns, val, inlineCategories, version))
{
if (preserveAttributeExtensions)
{
inlineCategories.AttributeExtensions.Add(new XmlQualifiedName(reader.LocalName, reader.NamespaceURI), await reader.GetValueAsync());
}
}
}
}
}
await SyndicationFeedFormatter.MoveToStartElementAsync(reader);
bool isEmptyElement = reader.IsEmptyElement;
await reader.ReadStartElementAsync();
if (!isEmptyElement)
{
XmlBuffer buffer = null;
XmlDictionaryWriter extWriter = null;
try
{
while (await reader.IsStartElementAsync())
{
if (await reader.IsStartElementAsync(Atom10Constants.CategoryTag, Atom10Constants.Atom10Namespace))
{
SyndicationCategory category = CreateCategory(inlineCategories);
await Atom10FeedFormatter.ReadCategoryAsync(reader, category, version, preserveAttributeExtensions, preserveElementExtensions, _maxExtensionSize);
if (category.Scheme == null)
{
category.Scheme = inlineCategories.Scheme;
}
inlineCategories.Categories.Add(category);
}
else if (!TryParseElement(reader, inlineCategories, version))
{
if (preserveElementExtensions)
{
var tuple = await SyndicationFeedFormatter.CreateBufferIfRequiredAndWriteNodeAsync(buffer, extWriter, reader, _maxExtensionSize);
buffer = tuple.Item1;
extWriter = tuple.Item2;
}
else
{
await reader.SkipAsync();
}
}
}
LoadElementExtensions(buffer, extWriter, inlineCategories);
}
finally
{
if (extWriter != null)
{
extWriter.Close();
}
}
await reader.ReadEndElementAsync();
}
}
protected override void WriteContentsTo(XmlWriter writer)
{
writer.WriteAttributeString(Atom10Constants.SourceTag, string.Empty, FeedUtils.GetUriString(_url));
}
