mirror of
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89 lines
2.7 KiB
C#
89 lines
2.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Xml.Linq;
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using NLog;
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using NzbDrone.Common.Instrumentation;
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namespace NzbDrone.Core.Indexers
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{
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public static class XElementExtensions
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{
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private static readonly Logger Logger = NzbDroneLogger.GetLogger();
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private static readonly Regex RemoveTimeZoneRegex = new Regex(@"\s[A-Z]{2,4}$", RegexOptions.Compiled);
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public static string Title(this XElement item)
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{
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return item.TryGetValue("title", "Unknown");
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}
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public static XElement StripNameSpace(this XElement root)
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{
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var res = new XElement(
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root.Name.LocalName,
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root.HasElements ?
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root.Elements().Select(StripNameSpace) :
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(object)root.Value
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);
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res.ReplaceAttributes(
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root.Attributes().Where(attr => (!attr.IsNamespaceDeclaration)));
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return res;
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}
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public static DateTime PublishDate(this XElement item)
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{
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string dateString = item.TryGetValue("pubDate");
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try
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{
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DateTime result;
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if (!DateTime.TryParse(dateString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AdjustToUniversal, out result))
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{
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dateString = RemoveTimeZoneRegex.Replace(dateString, "");
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result = DateTime.Parse(dateString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AdjustToUniversal);
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}
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return result.ToUniversalTime().Date;
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}
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catch (FormatException e)
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{
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Logger.WarnException("Unable to parse " + dateString, e);
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throw;
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}
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}
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public static List<String> Links(this XElement item)
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{
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var elements = item.Elements("link");
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return elements.Select(link => link.Value).ToList();
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}
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public static string Description(this XElement item)
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{
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return item.TryGetValue("description");
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}
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public static string Comments(this XElement item)
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{
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return item.TryGetValue("comments");
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}
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public static long Length(this XElement item)
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{
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return long.Parse(item.TryGetValue("length"));
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}
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private static string TryGetValue(this XElement item, string elementName, string defaultValue = "")
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{
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var element = item.Element(elementName);
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return element != null ? element.Value : defaultValue;
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}
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}
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}
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