Example #1
0
        private RssImage ParseImage(XmlNodeList itemNodes)
        {
            RssImage rssImage = new RssImage();

            foreach (XmlNode itemNode in itemNodes)
            {
                switch (itemNode.Name.ToLower())
                {
                case "link":
                    rssImage.Link = itemNode.InnerText;
                    break;

                case "url":
                    rssImage.Url = itemNode.InnerText;
                    break;

                case "title":
                    rssImage.Title = itemNode.InnerText;
                    break;

                case "description":
                    rssImage.Description = itemNode.InnerText;
                    break;

                case "height":
                    rssImage.Height = int.Parse(itemNode.InnerText);
                    break;

                case "width":
                    rssImage.Width = int.Parse(itemNode.InnerText);
                    break;
                }
            }
            return(rssImage);
        }
Example #2
0
 /// <summary>Closes connection to file.</summary>
 /// <remarks>This method also releases any resources held while reading.</remarks>
 public void Close()
 {
     image     = null;
     channel   = null;
     enclosure = null;
     item      = null;
     if (reader != null)
     {
         reader.Close();
         reader = null;
     }
     elementText  = null;
     xmlNodeStack = null;
 }
Example #3
0
 /// <summary>Closes connection to file.</summary>
 /// <remarks>This method also releases any resources held while reading.</remarks>
 public void Close()
 {
     textInput = null;
     image     = null;
     cloud     = null;
     channel   = null;
     source    = null;
     enclosure = null;
     category  = null;
     item      = null;
     if (reader != null)
     {
         reader.Close();
         reader = null;
     }
     elementText  = null;
     xmlNodeStack = null;
 }
Example #4
0
        /// <summary>Closes connection to file.</summary>
        /// <remarks>This method also releases any resources held while reading.</remarks>
        public void Close()
        {
            this.textInput = null;
            this.image     = null;
            this.cloud     = null;
            this.channel   = null;
            this.source    = null;
            this.enclosure = null;
            this.category  = null;
            this.item      = null;
            if (this.reader != null)
            {
                this.reader.Close();
                this.reader = null;
            }

            this.elementText  = null;
            this.xmlNodeStack = null;
        }
		/// <summary>Closes connection to file.</summary>
		/// <remarks>This baseMethod also releases any resources held while reading.</remarks>
		public void Close()
		{
			textInput = null;
			image = null;
			cloud = null;
			channel = null;
			source = null;
			enclosure = null;
			category = null;
			item = null;
			if (reader!=null)
			{
				reader.Close();
				reader = null;
			}
			elementText = null;
			xmlNodeStack = null;
		}
		/// <summary>Reads the next RssElement from the stream.</summary>
		/// <returns>An RSS Element</returns>
		/// <exception cref="InvalidOperationException">RssReader has been closed, and can not be read.</exception>
		/// <exception cref="System.IO.FileNotFoundException">RSS file not found.</exception>
		/// <exception cref="System.Xml.XmlException">Invalid XML syntax in RSS file.</exception>
		/// <exception cref="System.IO.EndOfStreamException">Unable to read an RssElement. Reached the end of the stream.</exception>
		public RssElement Read()
		{
			bool readData = false;
			bool pushElement = true;
			RssElement rssElement = null;
			int lineNumber = -1;
			int linePosition = -1;

			if (reader == null)
				throw new InvalidOperationException("RssReader has been closed, and can not be read.");

			do
			{
				pushElement = true;
				try
				{
					readData = reader.Read();
				}
				catch (System.IO.EndOfStreamException e)
				{
					throw new System.IO.EndOfStreamException("Unable to read an RssElement. Reached the end of the stream.", e);
				}
				catch (System.Xml.XmlException e)
				{
					if (lineNumber != -1 || linePosition != -1)
						if (reader.LineNumber == lineNumber && reader.LinePosition == linePosition)
							throw exceptions.LastException;

					lineNumber = reader.LineNumber;
					linePosition = reader.LinePosition;

					exceptions.Add(e); // just add to list of exceptions and continue :)

                    //// Added, OFxP
                    //if (readData)
                    //{
                    //    continue;
                    //}
				}
				if (readData)
				{
					string readerName = reader.Name.ToLower();
					switch (reader.NodeType)
					{
						case XmlNodeType.Element:
						{
							if (reader.IsEmptyElement)
								break;
							elementText = new StringBuilder();

							switch (readerName)
							{
								case "item":
									// is this the end of the channel element? (absence of </channel> before <item>)
									if (!wroteChannel)
									{
										wroteChannel = true;
										rssElement = channel; // return RssChannel
										readData = false;
									}
									item = new RssItem(); // create new RssItem
									channel.Items.Add(item);
									break;
								case "source":
									source = new RssSource();
									item.Source = source;
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										switch (reader.Name.ToLower())
										{
											case "url":
												try
												{
                                                    // OFxP, fix
                                                    //source.Url = new Uri(reader.Value);
                                                    source.Url = new Uri(reader.Value, true);
												}				
												catch (Exception e)
												{
													exceptions.Add(e);
												}
												break;
										}
									}
									break;
								case "enclosure":
									enclosure = new RssEnclosure();
									item.Enclosure = enclosure;
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										switch (reader.Name.ToLower())
										{
											case "url":
												try
												{
                                                    // OFxP, fix
                                                    //enclosure.Url = new Uri(reader.Value);
                                                    enclosure.Url = new Uri(reader.Value, true);
												}				
												catch (Exception e)
												{
													exceptions.Add(e);
												}
												break;
											case "length":
												try
												{
													enclosure.Length = int.Parse(reader.Value);
												}				
												catch (Exception e)
												{
													exceptions.Add(e);
												}
												break;
											case "type":
												enclosure.Type = reader.Value;
												break;
										}
									}
									break;
								case "guid":
									guid = new RssGuid();
									item.Guid = guid;
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										switch (reader.Name.ToLower())
										{
											case "ispermalink":
												try
												{
													guid.PermaLink = bool.Parse(reader.Value);
												}			
												catch (Exception e)
												{
													exceptions.Add(e);
												}
												break;
										}
									}
									break;
								case "category":
									category = new RssCategory();
									if ((string)xmlNodeStack.Peek() == "channel")
										channel.Categories.Add(category);
									else
										item.Categories.Add(category);
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										switch (reader.Name.ToLower())
										{
											case "url":
												goto case "domain";
											case "domain":
												category.Domain = reader.Value;
												break;
										}
									}
									break;
								case "channel":
									channel = new RssChannel();
									textInput = null;
									image = null;
									cloud = null;
									source = null;
									enclosure = null;
									category = null;
									item = null;
									break;
								case "image":
									image = new RssImage();
									channel.Image = image;
									break;
								case "textinput":
									textInput = new RssTextInput();
									channel.TextInput = textInput;
									break;
								case "cloud":
									pushElement = false;
									cloud = new RssCloud();
									channel.Cloud = cloud;
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										switch (reader.Name.ToLower())
										{
											case "domain":
												cloud.Domain = reader.Value;
												break;
											case "port":
												try
												{
													cloud.Port = ushort.Parse(reader.Value);
												}				
												catch (Exception e)
												{
													exceptions.Add(e);
												}
												break;
											case "path":
												cloud.Path = reader.Value;
												break;
											case "registerprocedure":
												cloud.RegisterProcedure = reader.Value;
												break;
											case "protocol":
											switch (reader.Value.ToLower())
											{
												case "xml-rpc":
													cloud.Protocol = RssCloudProtocol.XmlRpc;
													break;
												case "soap":
													cloud.Protocol = RssCloudProtocol.Soap;
													break;
												case "http-post":
													cloud.Protocol = RssCloudProtocol.HttpPost;
													break;
												default:
													cloud.Protocol = RssCloudProtocol.Empty;
													break;
											}
												break;
										}
									}
									break;
								case "rss":
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										if (reader.Name.ToLower() == "version")
											switch (reader.Value)
											{
												case "0.91":
													rssVersion = RssVersion.RSS091;
													break;
												case "0.92":
													rssVersion = RssVersion.RSS092;
													break;
												case "2.0":
													rssVersion = RssVersion.RSS20;
													break;
												default:
													rssVersion = RssVersion.NotSupported;
													break;
											}
									}
									break;
								case "rdf":
									for (int i=0; i < reader.AttributeCount; i++)
									{
										reader.MoveToAttribute(i);
										if (reader.Name.ToLower() == "version")
											switch (reader.Value)
											{
												case "0.90":
													rssVersion = RssVersion.RSS090;
													break;
												case "1.0":
													rssVersion = RssVersion.RSS10;
													break;
												default:
													rssVersion = RssVersion.NotSupported;
													break;
											}
									}
									break;
							
							}
							if (pushElement)
								xmlNodeStack.Push(readerName);
							break;
						}
						case XmlNodeType.EndElement:
						{
							if (xmlNodeStack.Count == 1)
								break;
							string childElementName = (string)xmlNodeStack.Pop();
							string parentElementName = (string)xmlNodeStack.Peek();
							switch (childElementName) // current element
							{
									// item classes
								case "item":
									rssElement = item;
									readData = false;
									break;
								case "source":
									source.Name = elementText.ToString();
									rssElement = source;
									readData = false;
									break;
								case "enclosure":
									rssElement = enclosure;
									readData = false;
									break;
								case "guid":
									guid.Name = elementText.ToString();
									rssElement = guid;
									readData = false;
									break;
								case "category": // parent is either item or channel
									category.Name = elementText.ToString();
									rssElement = category;
									readData = false;
									break;
									// channel classes
								case "channel":
									if (wroteChannel)
										wroteChannel = false;
									else
									{
										wroteChannel = true;
										rssElement = channel;
										readData = false;
									}
									break;
								case "textinput":
									rssElement = textInput;
									readData = false;
									break;
								case "image":
									rssElement = image;
									readData = false;
									break;
								case "cloud":
									rssElement = cloud;
									readData = false;
									break;
							}
							switch (parentElementName) // parent element
							{
								case "item":
								switch (childElementName)
								{
									case "title":
										item.Title = elementText.ToString();
										break;
									case "link":
                                        // OFxP, fix
										//item.Link = new Uri(elementText.ToString());
                                        item.Link = new Uri(elementText.ToString(), true);
										break;
									case "description":
										item.Description = elementText.ToString();
										break;
									case "author":
										item.Author = elementText.ToString();
										break;
									case "comments":
										item.Comments = elementText.ToString();
										break;
                                    case "dc:date": // Fix for the federalreserve feed.
                                    case "pubdate":
                                        item.PubDate = GeneralHelper.ParseDateTimeWithZone(elementText.ToString());
										break;
								}
									break;
								case "channel":
								switch (childElementName)
								{
									case "title":
										channel.Title = elementText.ToString();
										break;
									case "link":
										try
										{
                                            // OFxP, fix
                                            //channel.Link = new Uri(elementText.ToString());
											channel.Link = new Uri(elementText.ToString(), true);
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
									case "description":
										channel.Description = elementText.ToString();
										break;
									case "language":
										channel.Language = elementText.ToString();
										break;
									case "copyright":
										channel.Copyright = elementText.ToString();
										break;
									case "managingeditor":
										channel.ManagingEditor = elementText.ToString();
										break;
									case "webmaster":
										channel.WebMaster = elementText.ToString();
										break;
									case "rating":
										channel.Rating = elementText.ToString();
										break;
                                    
                                    case "dc:date": // Fix for the federalreserve feed.
									case "pubdate":
                                        channel.PubDate = GeneralHelper.ParseDateTimeWithZone(elementText.ToString());
										break;
									case "lastbuilddate":
                                        channel.LastBuildDate = GeneralHelper.ParseDateTimeWithZone(elementText.ToString());
										break;
									case "generator":
										channel.Generator = elementText.ToString();
										break;
									case "docs":
										channel.Docs = elementText.ToString();
										break;
									case "ttl":
										try
										{
											channel.TimeToLive = int.Parse(elementText.ToString());
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
								}
									break;
								case "image":
								switch (childElementName)
								{
									case "url":
										try
										{
                                            // OFxP, fix
                                            //image.Url = new Uri(elementText.ToString());
											image.Url = new Uri(elementText.ToString(), true);
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
									case "title":
										image.Title = elementText.ToString();
										break;
									case "link":
										try
										{
                                            // OFxP, fix
                                            //image.Link = new Uri(elementText.ToString());
											image.Link = new Uri(elementText.ToString(), true);
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
									case "description":
										image.Description = elementText.ToString();
										break;
									case "width":
										try
										{
											image.Width = Byte.Parse(elementText.ToString());
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
									case "height":
										try
										{
											image.Height = Byte.Parse(elementText.ToString());
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
								}
									break;
								case "textinput":
								switch (childElementName)
								{
									case "title":
										textInput.Title = elementText.ToString();
										break;
									case "description":
										textInput.Description = elementText.ToString();
										break;
									case "name":
										textInput.Name = elementText.ToString();
										break;
									case "link":
										try
										{
                                            // OFxP, fix
                                            //textInput.Link = new Uri(elementText.ToString());
                                            textInput.Link = new Uri(elementText.ToString(), true);
										}				
										catch (Exception e)
										{
											exceptions.Add(e);
										}
										break;
								}
									break;
								case "skipdays":
									if (childElementName == "day")
                                        channel.SkipDays |= Day.Parse(elementText.ToString());
									break;
								case "skiphours":
									if (childElementName == "hour")
										channel.SkipHours |= Hour.Parse(elementText.ToString());
									break;
							}
							break;
						}
						case XmlNodeType.Text:
							elementText.Append(reader.Value);
							break;
						case XmlNodeType.CDATA:
							elementText.Append(reader.Value);
							break;
					}
				}
			}
			while (readData);
			return rssElement;
		}
Example #7
0
        /// <summary>Reads the next RssElement from the stream.</summary>
        /// <returns>An RSS Element</returns>
        /// <exception cref="InvalidOperationException">RssReader has been closed, and can not be read.</exception>
        /// <exception cref="System.IO.FileNotFoundException">RSS file not found.</exception>
        /// <exception cref="System.Xml.XmlException">Invalid XML syntax in RSS file.</exception>
        /// <exception cref="System.IO.EndOfStreamException">Unable to read an RssElement. Reached the end of the stream.</exception>
        public RssElement Read()
        {
            bool       readData     = false;
            bool       pushElement  = true;
            RssElement rssElement   = null;
            int        lineNumber   = -1;
            int        linePosition = -1;

            if (reader == null)
            {
                throw new InvalidOperationException("RssReader has been closed, and can not be read.");
            }

            do
            {
                pushElement = true;
                try
                {
                    readData = reader.Read();
                }
                catch (System.IO.EndOfStreamException e)
                {
                    throw new System.IO.EndOfStreamException("Unable to read an RssElement. Reached the end of the stream.", e);
                }
                catch (System.Xml.XmlException e)
                {
                    if (lineNumber != -1 || linePosition != -1)
                    {
                        if (reader.LineNumber == lineNumber && reader.LinePosition == linePosition)
                        {
                            throw exceptions.LastException;
                        }
                    }

                    lineNumber   = reader.LineNumber;
                    linePosition = reader.LinePosition;

                    exceptions.Add(e);                     // just add to list of exceptions and continue :)
                }
                if (readData)
                {
                    string readerName = reader.Name.ToLower();
                    switch (reader.NodeType)
                    {
                    case XmlNodeType.Element:
                    {
                        if (reader.IsEmptyElement)
                        {
                            break;
                        }
                        elementText = new StringBuilder();

                        switch (readerName)
                        {
                        case "item":
                            // is this the end of the channel element? (absence of </channel> before <item>)
                            if (!wroteChannel)
                            {
                                wroteChannel = true;
                                rssElement   = channel;                                               // return RssChannel
                                readData     = false;
                            }
                            item = new RssItem();                                             // create new RssItem
                            channel.Items.Add(item);
                            break;

                        case "source":
                            source      = new RssSource();
                            item.Source = source;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        source.Url = new Uri(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "enclosure":
                            enclosure      = new RssEnclosure();
                            item.Enclosure = enclosure;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        enclosure.Url = new Uri(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;

                                case "length":
                                    try
                                    {
                                        enclosure.Length = int.Parse(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;

                                case "type":
                                    enclosure.Type = reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "guid":
                            guid      = new RssGuid();
                            item.Guid = guid;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "ispermalink":
                                    try
                                    {
                                        guid.PermaLink = bool.Parse(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "category":
                            category = new RssCategory();
                            if ((string)xmlNodeStack.Peek() == "channel")
                            {
                                channel.Categories.Add(category);
                            }
                            else
                            {
                                item.Categories.Add(category);
                            }
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "url":
                                    goto case "domain";

                                case "domain":
                                    category.Domain = reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "channel":
                            channel   = new RssChannel(RssDefault.String, RssDefault.String, RssDefault.Uri);
                            textInput = null;
                            image     = null;
                            cloud     = null;
                            source    = null;
                            enclosure = null;
                            category  = null;
                            item      = null;
                            break;

                        case "image":
                            image         = new RssImage();
                            channel.Image = image;
                            break;

                        case "textinput":
                            textInput         = new RssTextInput();
                            channel.TextInput = textInput;
                            break;

                        case "cloud":
                            pushElement   = false;
                            cloud         = new RssCloud();
                            channel.Cloud = cloud;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "domain":
                                    cloud.Domain = reader.Value;
                                    break;

                                case "port":
                                    try
                                    {
                                        cloud.Port = ushort.Parse(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;

                                case "path":
                                    cloud.Path = reader.Value;
                                    break;

                                case "registerprocedure":
                                    cloud.RegisterProcedure = reader.Value;
                                    break;

                                case "protocol":
                                    switch (reader.Value.ToLower())
                                    {
                                    case "xml-rpc":
                                        cloud.Protocol = RssCloudProtocol.XmlRpc;
                                        break;

                                    case "soap":
                                        cloud.Protocol = RssCloudProtocol.Soap;
                                        break;

                                    case "http-post":
                                        cloud.Protocol = RssCloudProtocol.HttpPost;
                                        break;

                                    default:
                                        cloud.Protocol = RssCloudProtocol.Empty;
                                        break;
                                    }
                                    break;
                                }
                            }
                            break;

                        case "rss":
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                if (reader.Name.ToLower() == "version")
                                {
                                    switch (reader.Value)
                                    {
                                    case "0.91":
                                        rssVersion = RssVersion.RSS091;
                                        break;

                                    case "0.92":
                                        rssVersion = RssVersion.RSS092;
                                        break;

                                    case "2.0":
                                        rssVersion = RssVersion.RSS20;
                                        break;

                                    default:
                                        rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "rdf":
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                if (reader.Name.ToLower() == "version")
                                {
                                    switch (reader.Value)
                                    {
                                    case "0.90":
                                        rssVersion = RssVersion.RSS090;
                                        break;

                                    case "1.0":
                                        rssVersion = RssVersion.RSS10;
                                        break;

                                    default:
                                        rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;
                        }
                        if (pushElement)
                        {
                            xmlNodeStack.Push(readerName);
                        }
                        break;
                    }

                    case XmlNodeType.EndElement:
                    {
                        if (xmlNodeStack.Count == 1)
                        {
                            break;
                        }
                        string childElementName  = (string)xmlNodeStack.Pop();
                        string parentElementName = (string)xmlNodeStack.Peek();
                        switch (childElementName)                                 // current element
                        {
                        // item classes
                        case "item":
                            rssElement = item;
                            readData   = false;
                            break;

                        case "source":
                            source.Name = elementText.ToString();
                            rssElement  = source;
                            readData    = false;
                            break;

                        case "enclosure":
                            rssElement = enclosure;
                            readData   = false;
                            break;

                        case "guid":
                            guid.Name  = elementText.ToString();
                            rssElement = guid;
                            readData   = false;
                            break;

                        case "category":                                         // parent is either item or channel
                            category.Name = elementText.ToString();
                            rssElement    = category;
                            readData      = false;
                            break;

                        // channel classes
                        case "channel":
                            if (wroteChannel)
                            {
                                wroteChannel = false;
                            }
                            else
                            {
                                wroteChannel = true;
                                rssElement   = channel;
                                readData     = false;
                            }
                            break;

                        case "textinput":
                            rssElement = textInput;
                            readData   = false;
                            break;

                        case "image":
                            rssElement = image;
                            readData   = false;
                            break;

                        case "cloud":
                            rssElement = cloud;
                            readData   = false;
                            break;
                        }
                        switch (parentElementName)                                 // parent element
                        {
                        case "item":
                            switch (childElementName)
                            {
                            case "title":
                                item.Title = elementText.ToString();
                                break;

                            case "link":
                                item.Link = new Uri(elementText.ToString());
                                break;

                            case "description":
                                item.Description = elementText.ToString();
                                break;

                            case "author":
                                item.Author = elementText.ToString();
                                break;

                            case "comments":
                                item.Comments = elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    item.PubDate_GMT = DateTime.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    try {
                                        string tmp = elementText.ToString();
                                        tmp  = tmp.Substring(0, tmp.Length - 5);
                                        tmp += "GMT";
                                        item.PubDate_GMT = DateTime.Parse(tmp);
                                    }
                                    catch
                                    {
                                        exceptions.Add(e);
                                    }
                                }
                                break;
                            }
                            break;

                        case "channel":
                            switch (childElementName)
                            {
                            case "title":
                                channel.Title = elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    channel.Link = new Uri(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "description":
                                channel.Description = elementText.ToString();
                                break;

                            case "language":
                                channel.Language = elementText.ToString();
                                break;

                            case "copyright":
                                channel.Copyright = elementText.ToString();
                                break;

                            case "managingeditor":
                                channel.ManagingEditor = elementText.ToString();
                                break;

                            case "webmaster":
                                channel.WebMaster = elementText.ToString();
                                break;

                            case "rating":
                                channel.Rating = elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    channel.PubDate = DateTime.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "lastbuilddate":
                                try
                                {
                                    channel.LastBuildDate = DateTime.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "generator":
                                channel.Generator = elementText.ToString();
                                break;

                            case "docs":
                                channel.Docs = elementText.ToString();
                                break;

                            case "ttl":
                                try
                                {
                                    channel.TimeToLive = int.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "image":
                            switch (childElementName)
                            {
                            case "url":
                                try
                                {
                                    image.Url = new Uri(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "title":
                                image.Title = elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    image.Link = new Uri(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "description":
                                image.Description = elementText.ToString();
                                break;

                            case "width":
                                try
                                {
                                    image.Width = Byte.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "height":
                                try
                                {
                                    image.Height = Byte.Parse(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "textinput":
                            switch (childElementName)
                            {
                            case "title":
                                textInput.Title = elementText.ToString();
                                break;

                            case "description":
                                textInput.Description = elementText.ToString();
                                break;

                            case "name":
                                textInput.Name = elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    textInput.Link = new Uri(elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "skipdays":
                            if (childElementName == "day")
                            {
                                switch (elementText.ToString().ToLower())
                                {
                                case "monday":
                                    channel.SkipDays[0] = true;
                                    break;

                                case "tuesday":
                                    channel.SkipDays[1] = true;
                                    break;

                                case "wednesday":
                                    channel.SkipDays[2] = true;
                                    break;

                                case "thursday":
                                    channel.SkipDays[3] = true;
                                    break;

                                case "friday":
                                    channel.SkipDays[4] = true;
                                    break;

                                case "saturday":
                                    channel.SkipDays[5] = true;
                                    break;

                                case "sunday":
                                    channel.SkipDays[6] = true;
                                    break;
                                }
                            }
                            break;

                        case "skiphours":
                            if (childElementName == "hour")
                            {
                                channel.SkipHours[Byte.Parse(elementText.ToString().ToLower())] = true;
                            }
                            break;
                        }
                        break;
                    }

                    case XmlNodeType.Text:
                        elementText.Append(reader.Value);
                        break;

                    case XmlNodeType.CDATA:
                        elementText.Append(reader.Value);
                        break;
                    }
                }
            }while (readData);
            return(rssElement);
        }
Example #8
0
        private static RssImage SetRssImage()
        {
            RssImage objRssImage = new RssImage
                                       {
                                           Description = "www.hossein-shirazi.ir",
                                           Title = "www.hossein-shirazi.ir",
                                           Url = new Uri("http://www.hossein-shirazi.com/DSD/App_Themes/Default/accept.ico"),
                                           Link = new Uri("http://www.hossein-shirazi.com/DSD/"),
                                           Height = 30,
                                           Width = 100
                                       };

            return objRssImage;
        }
Example #9
0
        /// <summary>Reads the next RssElement from the stream.</summary>
        /// <returns>An RSS Element</returns>
        /// <exception cref="InvalidOperationException">RssReader has been closed, and can not be read.</exception>
        /// <exception cref="System.IO.FileNotFoundException">RSS file not found.</exception>
        /// <exception cref="System.Xml.XmlException">Invalid XML syntax in RSS file.</exception>
        /// <exception cref="System.IO.EndOfStreamException">Unable to read an RssElement. Reached the end of the stream.</exception>
        public RssElement Read()
        {
            bool       readData     = false;
            bool       pushElement  = true;
            RssElement rssElement   = null;
            int        lineNumber   = -1;
            int        linePosition = -1;

            if (this.reader == null)
            {
                throw new InvalidOperationException("RssReader has been closed, and can not be read.");
            }

            do
            {
                pushElement = true;
                try
                {
                    readData = this.reader.Read();
                }
                catch (EndOfStreamException e)
                {
                    throw new EndOfStreamException("Unable to read an RssElement. Reached the end of the stream.", e);
                }
                catch (XmlException e)
                {
                    if (lineNumber != -1 || linePosition != -1)
                    {
                        if (this.reader.LineNumber == lineNumber && this.reader.LinePosition == linePosition)
                        {
                            throw this.exceptions.LastException;
                        }
                    }

                    lineNumber   = this.reader.LineNumber;
                    linePosition = this.reader.LinePosition;

                    this.exceptions.Add(e); // just add to list of exceptions and continue :)
                }
                if (readData)
                {
                    string readerName = this.reader.Name.ToLower();
                    switch (this.reader.NodeType)
                    {
                    case XmlNodeType.Element:
                    {
                        if (this.reader.IsEmptyElement)
                        {
                            break;
                        }
                        this.elementText = new StringBuilder();

                        switch (readerName)
                        {
                        case "item":
                            // is this the end of the channel element? (absence of </channel> before <item>)
                            if (!this.wroteChannel)
                            {
                                this.wroteChannel = true;
                                rssElement        = this.channel;                                          // return RssChannel
                                readData          = false;
                            }

                            this.item = new RssItem();         // create new RssItem
                            this.channel.Items.Add(this.item);
                            break;

                        case "source":
                            this.source      = new RssSource();
                            this.item.Source = this.source;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        this.source.Url = new Uri(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "enclosure":
                            this.enclosure      = new RssEnclosure();
                            this.item.Enclosure = this.enclosure;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        this.enclosure.Url = new Uri(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "length":
                                    try
                                    {
                                        this.enclosure.Length = int.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "type":
                                    this.enclosure.Type = this.reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "guid":
                            this.guid      = new RssGuid();
                            this.item.Guid = this.guid;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "ispermalink":
                                    try
                                    {
                                        this.guid.PermaLink = bool.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "category":
                            this.category = new RssCategory();
                            if ((string)this.xmlNodeStack.Peek() == "channel")
                            {
                                this.channel.Categories.Add(this.category);
                            }
                            else
                            {
                                this.item.Categories.Add(this.category);
                            }
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "url":
                                    goto case "domain";

                                case "domain":
                                    this.category.Domain = this.reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "channel":
                            this.channel   = new RssChannel();
                            this.textInput = null;
                            this.image     = null;
                            this.cloud     = null;
                            this.source    = null;
                            this.enclosure = null;
                            this.category  = null;
                            this.item      = null;
                            break;

                        case "image":
                            this.image         = new RssImage();
                            this.channel.Image = this.image;
                            break;

                        case "textinput":
                            this.textInput         = new RssTextInput();
                            this.channel.TextInput = this.textInput;
                            break;

                        case "cloud":
                            pushElement        = false;
                            this.cloud         = new RssCloud();
                            this.channel.Cloud = this.cloud;
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                switch (this.reader.Name.ToLower())
                                {
                                case "domain":
                                    this.cloud.Domain = this.reader.Value;
                                    break;

                                case "port":
                                    try
                                    {
                                        this.cloud.Port = ushort.Parse(this.reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        this.exceptions.Add(e);
                                    }
                                    break;

                                case "path":
                                    this.cloud.Path = this.reader.Value;
                                    break;

                                case "registerprocedure":
                                    this.cloud.RegisterProcedure = this.reader.Value;
                                    break;

                                case "protocol":
                                    switch (this.reader.Value.ToLower())
                                    {
                                    case "xml-rpc":
                                        this.cloud.Protocol = RssCloudProtocol.XmlRpc;
                                        break;

                                    case "soap":
                                        this.cloud.Protocol = RssCloudProtocol.Soap;
                                        break;

                                    case "http-post":
                                        this.cloud.Protocol = RssCloudProtocol.HttpPost;
                                        break;

                                    default:
                                        this.cloud.Protocol = RssCloudProtocol.Empty;
                                        break;
                                    }
                                    break;
                                }
                            }
                            break;

                        case "rss":
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                if (this.reader.Name.ToLower() == "version")
                                {
                                    switch (this.reader.Value)
                                    {
                                    case "0.91":
                                        this.rssVersion = RssVersion.RSS091;
                                        break;

                                    case "0.92":
                                        this.rssVersion = RssVersion.RSS092;
                                        break;

                                    case "2.0":
                                        this.rssVersion = RssVersion.RSS20;
                                        break;

                                    default:
                                        this.rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "rdf":
                            for (int i = 0; i < this.reader.AttributeCount; i++)
                            {
                                this.reader.MoveToAttribute(i);
                                if (this.reader.Name.ToLower() == "version")
                                {
                                    switch (this.reader.Value)
                                    {
                                    case "0.90":
                                        this.rssVersion = RssVersion.RSS090;
                                        break;

                                    case "1.0":
                                        this.rssVersion = RssVersion.RSS10;
                                        break;

                                    default:
                                        this.rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "geo:lat":
                        case "geo:long":
                        case "geo:point":
                        case "georss:point":
                        case "georss:elev":
                        case "georss:radius":
                            if (this.item.GeoPoint == null)
                            {
                                this.item.GeoPoint = new RssGeoPoint();
                            }
                            break;
                        }
                        if (pushElement)
                        {
                            this.xmlNodeStack.Push(readerName);
                        }
                        break;
                    }

                    case XmlNodeType.EndElement:
                    {
                        if (this.xmlNodeStack.Count == 1)
                        {
                            break;
                        }
                        string childElementName  = (string)this.xmlNodeStack.Pop();
                        string parentElementName = (string)this.xmlNodeStack.Peek();
                        switch (childElementName)                                 // current element
                        {
                        // item classes
                        case "item":
                            rssElement = this.item;
                            readData   = false;
                            break;

                        case "source":
                            this.source.Name = this.elementText.ToString();
                            rssElement       = this.source;
                            readData         = false;
                            break;

                        case "enclosure":
                            rssElement = this.enclosure;
                            readData   = false;
                            break;

                        case "guid":
                            this.guid.Name = this.elementText.ToString();
                            rssElement     = this.guid;
                            readData       = false;
                            break;

                        case "category":                                         // parent is either item or channel
                            this.category.Name = this.elementText.ToString();
                            rssElement         = this.category;
                            readData           = false;
                            break;

                        // channel classes
                        case "channel":
                            if (this.wroteChannel)
                            {
                                this.wroteChannel = false;
                            }
                            else
                            {
                                this.wroteChannel = true;
                                rssElement        = this.channel;
                                readData          = false;
                            }
                            break;

                        case "textinput":
                            rssElement = this.textInput;
                            readData   = false;
                            break;

                        case "image":
                            rssElement = this.image;
                            readData   = false;
                            break;

                        case "cloud":
                            rssElement = this.cloud;
                            readData   = false;
                            break;
                        }
                        switch (parentElementName)                                 // parent element
                        {
                        case "item":
                            switch (childElementName)
                            {
                            case "title":
                                this.item.Title = this.elementText.ToString();
                                break;

                            case "link":
                                this.item.Link = new Uri(this.elementText.ToString());
                                break;

                            case "description":
                                this.item.Description = this.elementText.ToString();
                                break;

                            case "author":
                                this.item.Author = this.elementText.ToString();
                                break;

                            case "comments":
                                this.item.Comments = this.elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    this.item.PubDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    try {
                                        string tmp = this.elementText.ToString();
                                        tmp  = tmp.Substring(0, tmp.Length - 5);
                                        tmp += "GMT";
                                        this.item.PubDate = DateTime.Parse(tmp);
                                    }
                                    catch
                                    {
                                        this.exceptions.Add(e);
                                    }
                                }
                                break;

                            case "geo:lat":
                                try
                                {
                                    this.item.GeoPoint.Lat = float.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "geo:long":
                                try
                                {
                                    this.item.GeoPoint.Lon = float.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "georss:point":
                                try
                                {
                                    string[] coords = this.elementText.ToString().Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                                    if (coords.Length == 2)
                                    {
                                        this.item.GeoPoint.Lat = float.Parse(coords[0]);
                                        this.item.GeoPoint.Lon = float.Parse(coords[1]);
                                    }
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "channel":
                            switch (childElementName)
                            {
                            case "title":
                                this.channel.Title = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.channel.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "description":
                                this.channel.Description = this.elementText.ToString();
                                break;

                            case "language":
                                this.channel.Language = this.elementText.ToString();
                                break;

                            case "copyright":
                                this.channel.Copyright = this.elementText.ToString();
                                break;

                            case "managingeditor":
                                this.channel.ManagingEditor = this.elementText.ToString();
                                break;

                            case "webmaster":
                                this.channel.WebMaster = this.elementText.ToString();
                                break;

                            case "rating":
                                this.channel.Rating = this.elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    this.channel.PubDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "lastbuilddate":
                                try
                                {
                                    this.channel.LastBuildDate = DateTime.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "generator":
                                this.channel.Generator = this.elementText.ToString();
                                break;

                            case "docs":
                                this.channel.Docs = this.elementText.ToString();
                                break;

                            case "ttl":
                                try
                                {
                                    this.channel.TimeToLive = int.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "image":
                            switch (childElementName)
                            {
                            case "url":
                                try
                                {
                                    this.image.Url = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "title":
                                this.image.Title = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.image.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "description":
                                this.image.Description = this.elementText.ToString();
                                break;

                            case "width":
                                try
                                {
                                    this.image.Width = Byte.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;

                            case "height":
                                try
                                {
                                    this.image.Height = Byte.Parse(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "textinput":
                            switch (childElementName)
                            {
                            case "title":
                                this.textInput.Title = this.elementText.ToString();
                                break;

                            case "description":
                                this.textInput.Description = this.elementText.ToString();
                                break;

                            case "name":
                                this.textInput.Name = this.elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    this.textInput.Link = new Uri(this.elementText.ToString());
                                }
                                catch (Exception e)
                                {
                                    this.exceptions.Add(e);
                                }
                                break;
                            }
                            break;

                        case "skipdays":
                            if (childElementName == "day")
                            {
                                this.channel.SkipDays |= Day.Parse(this.elementText.ToString());
                            }
                            break;

                        case "skiphours":
                            if (childElementName == "hour")
                            {
                                this.channel.SkipHours |= Hour.Parse(this.elementText.ToString());
                            }
                            break;
                        }
                        break;
                    }

                    case XmlNodeType.Text:
                        this.elementText.Append(this.reader.Value);
                        break;

                    case XmlNodeType.CDATA:
                        this.elementText.Append(this.reader.Value);
                        break;
                    }
                }
            }while (readData);
            return(rssElement);
        }
Example #10
0
        /// <summary>Reads the next RssElement from the stream.</summary>
        /// <returns>An RSS Element</returns>
        /// <exception cref="InvalidOperationException">RssReader has been closed, and can not be read.</exception>
        /// <exception cref="System.IO.FileNotFoundException">RSS file not found.</exception>
        /// <exception cref="System.Xml.XmlException">Invalid XML syntax in RSS file.</exception>
        /// <exception cref="System.IO.EndOfStreamException">Unable to read an RssElement. Reached the end of the stream.</exception>
        public RssElement Read()
        {
            bool       readData     = false;
            bool       pushElement  = true;
            RssElement rssElement   = null;
            int        lineNumber   = -1;
            int        linePosition = -1;

            if (reader == null)
            {
                throw new InvalidOperationException("RssReader has been closed, and can not be read.");
            }

            do
            {
                pushElement = true;
                try
                {
                    readData = reader.Read();
                }
                catch (System.IO.EndOfStreamException e)
                {
                    throw new System.IO.EndOfStreamException("Unable to read an RssElement. Reached the end of the stream.", e);
                }
                catch (System.Xml.XmlException e)
                {
                    if (lineNumber != -1 || linePosition != -1)
                    {
                        if (reader.LineNumber == lineNumber && reader.LinePosition == linePosition)
                        {
                            throw exceptions.LastException;
                        }
                    }

                    lineNumber   = reader.LineNumber;
                    linePosition = reader.LinePosition;

                    exceptions.Add(e); // just add to list of exceptions and continue :)
                }
                if (readData)
                {
                    string readerName = reader.Name.ToLower();
                    switch (reader.NodeType)
                    {
                    case XmlNodeType.Element:
                    {
                        if (reader.IsEmptyElement && reader.AttributeCount == 0)
                        {
                            break;
                        }
                        elementText = new StringBuilder();

                        switch (readerName)
                        {
                        case "item":
                            // is this the end of the channel element? (absence of </channel> before <item>)
                            if (!wroteChannel)
                            {
                                wroteChannel = true;
                                rssElement   = channel;           // return RssChannel
                                readData     = false;
                            }
                            item = new RssItem();             // create new RssItem
                            channel.Items.Add(item);
                            break;

                        //case "source":
                        //    source = new RssSource();
                        //    item.Source = source;
                        //    for (int i = 0; i < reader.AttributeCount; i++)
                        //    {
                        //        reader.MoveToAttribute(i);
                        //        switch (reader.Name.ToLower())
                        //        {
                        //            case "url":
                        //                try
                        //                {
                        //                    source.Url = reader.Value;
                        //                }
                        //                catch (Exception e)
                        //                {
                        //                    exceptions.Add(e);
                        //                }
                        //                break;
                        //        }
                        //    }
                        //    break;
                        //case "pubdate":
                        //    try
                        //    {
                        //        item.PubDate = W3CDateTime.Parse(elementText.ToString()).DateTime;
                        //    }
                        //    catch (Exception e)
                        //    {
                        //        try
                        //        {
                        //            string tmp = elementText.ToString();
                        //            tmp = tmp.Substring(0, tmp.LastIndexOf(" "));
                        //            tmp += " GMT";
                        //            item.PubDate = DateTime.Parse(tmp);
                        //        }
                        //        catch
                        //        {
                        //            exceptions.Add(e);
                        //        }
                        //    }
                        //    break;
                        case "enclosure":
                            enclosure      = new RssEnclosure();
                            item.Enclosure = enclosure;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "url":
                                    try
                                    {
                                        enclosure.Url = reader.Value;
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;

                                case "length":
                                    try
                                    {
                                        enclosure.Length = int.Parse(reader.Value);
                                    }
                                    catch (Exception)
                                    {
                                        enclosure.Length = 0;
                                        //exceptions.Add(e);
                                    }
                                    break;

                                case "type":
                                    enclosure.Type = reader.Value;
                                    break;
                                }
                            }
                            break;

                        case "guid":
                            guid      = new RssGuid();
                            item.Guid = guid;
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                switch (reader.Name.ToLower())
                                {
                                case "ispermalink":
                                    try
                                    {
                                        guid.PermaLink = bool.Parse(reader.Value);
                                    }
                                    catch (Exception e)
                                    {
                                        exceptions.Add(e);
                                    }
                                    break;
                                }
                            }
                            break;

                        case "channel":
                            channel   = new RssChannel();
                            image     = null;
                            enclosure = null;
                            item      = null;
                            break;

                        case "image":
                            image         = new RssImage();
                            channel.Image = image;
                            break;

                        case "rss":
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                if (reader.Name.ToLower() == "version")
                                {
                                    switch (reader.Value)
                                    {
                                    case "0.91":
                                        rssVersion = RssVersion.RSS091;
                                        break;

                                    case "0.92":
                                        rssVersion = RssVersion.RSS092;
                                        break;

                                    case "2.0":
                                        rssVersion = RssVersion.RSS20;
                                        break;

                                    default:
                                        rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;

                        case "rdf":
                            for (int i = 0; i < reader.AttributeCount; i++)
                            {
                                reader.MoveToAttribute(i);
                                if (reader.Name.ToLower() == "version")
                                {
                                    switch (reader.Value)
                                    {
                                    case "0.90":
                                        rssVersion = RssVersion.RSS090;
                                        break;

                                    case "1.0":
                                        rssVersion = RssVersion.RSS10;
                                        break;

                                    default:
                                        rssVersion = RssVersion.NotSupported;
                                        break;
                                    }
                                }
                            }
                            break;
                        }
                        if (pushElement)
                        {
                            xmlNodeStack.Push(readerName);
                        }
                        break;
                    }

                    case XmlNodeType.EndElement:
                    {
                        if (xmlNodeStack.Count == 1)
                        {
                            break;
                        }
                        string childElementName  = (string)xmlNodeStack.Pop();
                        string parentElementName = (string)xmlNodeStack.Peek();
                        switch (childElementName)         // current element
                        {
                        // item classes
                        case "item":
                            rssElement = item;
                            readData   = false;
                            break;

                        //case "source":
                        //    source.Name = elementText.ToString();
                        //    rssElement = source;
                        //    readData = false;
                        //    break;
                        case "enclosure":
                            rssElement = enclosure;
                            readData   = false;
                            break;

                        case "guid":
                            guid.Name  = elementText.ToString();
                            rssElement = guid;
                            readData   = false;
                            break;

                        case "pubdate":
                            rssElement = channel;
                            readData   = false;
                            break;

                        case "channel":
                            if (wroteChannel)
                            {
                                wroteChannel = false;
                            }
                            else
                            {
                                wroteChannel = true;
                                rssElement   = channel;
                                readData     = false;
                            }
                            break;
                        }
                        switch (parentElementName)         // parent element
                        {
                        case "item":
                            switch (childElementName)
                            {
                            case "pubdate":
                                try
                                {
                                    item.PubDate = W3CDateTime.Parse(elementText.ToString()).DateTime;
                                }
                                catch (Exception e)
                                {
                                    try
                                    {
                                        string tmp = elementText.ToString();
                                        tmp          = tmp.Substring(0, tmp.LastIndexOf(" "));
                                        tmp         += " GMT";
                                        item.PubDate = DateTime.Parse(tmp);
                                    }
                                    catch
                                    {
                                        exceptions.Add(e);
                                    }
                                }
                                break;

                            case "title":
                                item.Title = elementText.ToString();
                                break;

                            case "link":
                                item.Link = elementText.ToString();
                                break;

                            case "description":
                                item.Description = elementText.ToString();
                                break;
                            }
                            break;

                        case "channel":
                            switch (childElementName)
                            {
                            case "title":
                                channel.Title = elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    channel.Link = elementText.ToString();
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "description":
                                channel.Description = elementText.ToString();
                                break;

                            case "pubdate":
                                try
                                {
                                    channel.PubDate = W3CDateTime.Parse(elementText.ToString()).DateTime;
                                }
                                catch (Exception)
                                {
                                    if (elementText.ToString() == "")
                                    {
                                        channel.PubDate = DateTime.Now;
                                    }
                                    else
                                    {
                                        try
                                        {
                                            channel.PubDate = DateTime.Parse(elementText.ToString());
                                        }
                                        catch (Exception e)
                                        {
                                            try
                                            {
                                                string tmp = elementText.ToString();
                                                tmp             = tmp.Substring(0, tmp.LastIndexOf(" "));
                                                tmp            += " GMT";
                                                channel.PubDate = DateTime.Parse(tmp);
                                            }
                                            catch
                                            {
                                                exceptions.Add(e);
                                            }
                                        }
                                    }
                                }
                                break;

                            case "lastbuilddate":
                                try
                                {
                                    channel.LastBuildDate = W3CDateTime.Parse(elementText.ToString()).DateTime;
                                    //channel.LastBuildDate = DateTime.Parse(elementText.ToString());
                                }
                                catch (Exception)
                                {
                                    if (elementText.ToString() == "")
                                    {
                                        channel.LastBuildDate = DateTime.Now;
                                    }
                                    else
                                    {
                                        try
                                        {
                                            channel.LastBuildDate = DateTime.Parse(elementText.ToString());
                                        }
                                        catch (Exception e)
                                        {
                                            try
                                            {
                                                string tmp = elementText.ToString();
                                                tmp  = tmp.Substring(0, tmp.LastIndexOf(" "));
                                                tmp += " GMT";
                                                channel.LastBuildDate = DateTime.Parse(tmp);
                                            }
                                            catch
                                            {
                                                exceptions.Add(e);
                                            }
                                        }
                                    }
                                }
                                break;
                            }
                            break;

                        case "image":
                            switch (childElementName)
                            {
                            case "url":
                                try
                                {
                                    image.Url = elementText.ToString();
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "title":
                                image.Title = elementText.ToString();
                                break;

                            case "link":
                                try
                                {
                                    image.Link = elementText.ToString();
                                }
                                catch (Exception e)
                                {
                                    exceptions.Add(e);
                                }
                                break;

                            case "content:encoded":
                                item.Content = elementText.ToString();
                                break;

                            case "description":
                                image.Description = elementText.ToString();
                                break;
                            }
                            break;
                        }
                        break;
                    }

                    case XmlNodeType.Text:
                        elementText.Append(reader.Value);
                        break;

                    case XmlNodeType.CDATA:
                        elementText.Append(reader.Value);
                        break;
                    }
                }
            }while (readData);
            return(rssElement);
        }
Example #11
0
        private RssChannel ParseChannel(XmlNodeList channelBody)
        {
            channel = new RssChannel();
            try
            {
                XmlNodeList channelNodes = channelBody.Item(0).ChildNodes;
                // find the rss channel in this feed
                //XmlDocument doc = new XmlDocument();
                //doc.Load(reader);
                //XmlNode body = doc.DocumentElement.SelectSingleNode("channel");

                //if (body != null)
                //{

                // loop through the items and pick the important ones
                foreach (XmlNode channelItemNode in channelNodes)
                {
                    switch (channelItemNode.Name.ToLower())
                    {
                    case "title":
                        channel.Title = channelItemNode.InnerText;
                        break;

                    case "link":
                        channel.Link = channelItemNode.InnerText;
                        break;

                    case "description":
                        channel.Description = channelItemNode.InnerText;
                        break;

                    case "pubdate":
                        channel.PubDate = ParseDate(channelItemNode.InnerText);
                        break;

                    case "lastbuilddate":
                        channel.LastBuildDate = ParseDate(channelItemNode.InnerText);
                        break;

                    case "image":
                        if (channelItemNode.ChildNodes.Count > 0)
                        {
                            channel.Image = ParseImage(channelItemNode.ChildNodes);
                        }
                        else
                        {
                            if (channelItemNode.InnerText != null && channelItemNode.InnerText != "")
                            {
                                RssImage rssImage = new RssImage();
                                rssImage.Url  = channelItemNode.InnerText;
                                channel.Image = rssImage;
                            }
                        }
                        break;

                    case "item":
                        RssItem item = ParseItem(channelItemNode.ChildNodes);
                        channel.Items.Add(item);
                        break;
                    }
                    //}
                }
            }
            catch (Exception ex)
            {
                exceptions.Add(ex);
            }
            return(channel);
        }