Exemplo n.º 1
0
        public static async Task <SyndicationFeed> LoadAsync(XmlReader reader, Rss20FeedFormatter Rssformatter, Atom10FeedFormatter Atomformatter, CancellationToken ct)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            XmlReaderWrapper wrappedReader = XmlReaderWrapper.CreateFromReader(reader);

            Atom10FeedFormatter atomSerializer = Atomformatter;

            if (atomSerializer.CanRead(wrappedReader))
            {
                await atomSerializer.ReadFromAsync(wrappedReader, new CancellationToken());

                return(atomSerializer.Feed);
            }
            Rss20FeedFormatter rssSerializer = Rssformatter;

            if (rssSerializer.CanRead(wrappedReader))
            {
                await rssSerializer.ReadFromAsync(wrappedReader, new CancellationToken());

                return(rssSerializer.Feed);
            }
            throw new XmlException(string.Format(SR.UnknownFeedXml, wrappedReader.LocalName, wrappedReader.NamespaceURI));
        }
 internal static async Task MoveToStartElementAsync(XmlReaderWrapper reader)
 {
     if (!await reader.IsStartElementAsync())
     {
         XmlExceptionHelper.ThrowStartElementExpected(XmlDictionaryReader.CreateDictionaryReader(reader));
     }
 }
        private async Task ReadDocumentAsync(XmlReaderWrapper reader)
        {
            try
            {
                await SyndicationFeedFormatter.MoveToStartElementAsync(reader);

                SetDocument(await AtomPub10ServiceDocumentFormatter.ReadCategories(reader, null,
                                                                                   delegate()
                {
                    return(this.CreateInlineCategoriesDocument());
                },

                                                                                   delegate()
                {
                    return(this.CreateReferencedCategoriesDocument());
                },
                                                                                   this.Version,
                                                                                   _preserveElementExtensions,
                                                                                   _preserveAttributeExtensions,
                                                                                   _maxExtensionSize));
            }
            catch (FormatException e)
            {
                throw new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e);
            }
            catch (ArgumentException e)
            {
                throw new XmlException(FeedUtils.AddLineInfo(reader, SR.ErrorParsingDocument), e);
            }
        }
Exemplo n.º 4
0
        public override Task ReadFromAsync(XmlReader reader)
        {
            if (!CanRead(reader))
            {
                throw new XmlException(string.Format(SR.UnknownItemXml, reader.LocalName, reader.NamespaceURI));
            }

            return(ReadItemAsync(XmlReaderWrapper.CreateFromReader(reader)));
        }
Exemplo n.º 5
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        protected static bool TryParseElement(XmlReader reader, CategoriesDocument categories, string version)
        {
            if (categories == null)
            {
                throw new ArgumentNullException(nameof(categories));
            }

            return(categories.TryParseElement(XmlReaderWrapper.CreateFromReader(reader), version));
        }
Exemplo n.º 6
0
        protected static bool TryParseElement(XmlReader reader, Workspace workspace, string version)
        {
            if (workspace == null)
            {
                throw new ArgumentNullException(nameof(workspace));
            }

            return(workspace.TryParseElement(XmlReaderWrapper.CreateFromReader(reader), version));
        }
Exemplo n.º 7
0
        protected static bool TryParseElement(XmlReader reader, ServiceDocument document, string version)
        {
            if (document == null)
            {
                throw new ArgumentNullException(nameof(document));
            }

            return(document.TryParseElement(XmlReaderWrapper.CreateFromReader(reader), version));
        }
Exemplo n.º 8
0
        protected static bool TryParseElement(XmlReader reader, ResourceCollectionInfo collection, string version)
        {
            if (collection == null)
            {
                throw new ArgumentNullException(nameof(collection));
            }

            return(collection.TryParseElement(XmlReaderWrapper.CreateFromReader(reader), version));
        }
Exemplo n.º 9
0
        protected static void LoadElementExtensions(XmlReader reader, ServiceDocument document, int maxExtensionSize)
        {
            if (document == null)
            {
                throw new ArgumentNullException(nameof(document));
            }

            document.LoadElementExtensions(XmlReaderWrapper.CreateFromReader(reader), maxExtensionSize);
        }
Exemplo n.º 10
0
        protected static void LoadElementExtensions(XmlReader reader, Workspace workspace, int maxExtensionSize)
        {
            if (workspace == null)
            {
                throw new ArgumentNullException(nameof(workspace));
            }

            workspace.LoadElementExtensions(XmlReaderWrapper.CreateFromReader(reader), maxExtensionSize);
        }
Exemplo n.º 11
0
        protected static void LoadElementExtensions(XmlReader reader, ResourceCollectionInfo collection, int maxExtensionSize)
        {
            if (collection == null)
            {
                throw new ArgumentNullException(nameof(collection));
            }

            collection.LoadElementExtensions(XmlReaderWrapper.CreateFromReader(reader), maxExtensionSize);
        }
Exemplo n.º 12
0
        protected static void LoadElementExtensions(XmlReader reader, CategoriesDocument categories, int maxExtensionSize)
        {
            if (categories == null)
            {
                throw new ArgumentNullException(nameof(categories));
            }

            categories.LoadElementExtensions(XmlReaderWrapper.CreateFromReader(reader), maxExtensionSize);
        }
        Task ReadXml(XmlReaderWrapper reader)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            return(ReadDocumentAsync(reader));
        }
        public override Task <bool> CanReadAsync(XmlReader reader)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            XmlReaderWrapper readerWrapper = XmlReaderWrapper.CreateFromReader(reader);

            return(readerWrapper.IsStartElementAsync(App10Constants.Service, App10Constants.Namespace));
        }
        public override async Task ReadFromAsync(XmlReader reader)
        {
            if (reader == null)
            {
                throw new ArgumentNullException(nameof(reader));
            }

            if (!await CanReadAsync(reader))
            {
                throw new XmlException(string.Format(SR.UnknownDocumentXml, reader.LocalName, reader.NamespaceURI));
            }

            await ReadDocumentAsync(XmlReaderWrapper.CreateFromReader(reader));
        }
        internal static async Task <CategoriesDocument> ReadCategories(XmlReaderWrapper reader, Uri baseUri, CreateInlineCategoriesDelegate inlineCategoriesFactory, CreateReferencedCategoriesDelegate referencedCategoriesFactory, string version, bool preserveElementExtensions, bool preserveAttributeExtensions, int maxExtensionSize)
        {
            string link = reader.GetAttribute(App10Constants.Href, string.Empty);

            if (string.IsNullOrEmpty(link))
            {
                InlineCategoriesDocument inlineCategories = inlineCategoriesFactory();
                await ReadInlineCategoriesAsync(reader, inlineCategories, baseUri, version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);

                return(inlineCategories);
            }
            else
            {
                ReferencedCategoriesDocument referencedCategories = referencedCategoriesFactory();
                await ReadReferencedCategoriesAsync(reader, referencedCategories, baseUri, new Uri(link, UriKind.RelativeOrAbsolute), version, preserveElementExtensions, preserveAttributeExtensions, maxExtensionSize);

                return(referencedCategories);
            }
        }
Exemplo n.º 17
0
        public async Task <XmlReader> GetReaderAsync()
        {
            await this.EnsureBuffer();

            XmlReaderWrapper reader = XmlReaderWrapper.CreateFromReader(_buffer.GetReader(0));
            int index = 0;

            reader.ReadStartElement(Rss20Constants.ExtensionWrapperTag);
            while (reader.IsStartElement())
            {
                if (index == _bufferElementIndex)
                {
                    break;
                }
                ++index;

                await reader.SkipAsync();
            }

            return(reader);
        }
        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 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();
            }
        }
Exemplo n.º 23
0
 internal void LoadElementExtensions(XmlReaderWrapper readerOverUnparsedExtensions, int maxExtensionSize)
 {
     _extensions.LoadElementExtensions(readerOverUnparsedExtensions, maxExtensionSize);
 }
Exemplo n.º 24
0
        public static XmlReaderWrapper CreateFromReader(XmlReader reader)
        {
            XmlReaderWrapper wrappedReader = reader as XmlReaderWrapper;

            return(wrappedReader != null ? wrappedReader : new XmlReaderWrapper(reader));
        }
Exemplo n.º 25
0
 private Task ReadItemAsync(XmlReader reader)
 {
     SetItem(CreateItemInstance());
     return(_feedSerializer.ReadItemFromAsync(XmlReaderWrapper.CreateFromReader(XmlDictionaryReader.CreateDictionaryReader(reader)), this.Item));
 }