2014-09-07 11:44:24 +00:00
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using System;
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using System.Linq;
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using System.Xml.Linq;
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2014-12-02 06:26:25 +00:00
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using NzbDrone.Common.Extensions;
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2014-09-07 11:44:24 +00:00
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using NzbDrone.Core.Indexers.Exceptions;
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using NzbDrone.Core.Parser.Model;
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namespace NzbDrone.Core.Indexers.Newznab
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{
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public class NewznabRssParser : RssParser
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{
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public const String ns = "{http://www.newznab.com/DTD/2010/feeds/attributes/}";
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protected override bool PreProcess(IndexerResponse indexerResponse)
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{
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var xdoc = XDocument.Parse(indexerResponse.Content);
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var error = xdoc.Descendants("error").FirstOrDefault();
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if (error == null) return true;
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var code = Convert.ToInt32(error.Attribute("code").Value);
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var errorMessage = error.Attribute("description").Value;
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if (code >= 100 && code <= 199) throw new ApiKeyException("Invalid API key");
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if (!indexerResponse.Request.Url.ToString().Contains("apikey=") && errorMessage == "Missing parameter")
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{
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throw new ApiKeyException("Indexer requires an API key");
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}
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if (errorMessage == "Request limit reached")
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{
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throw new RequestLimitReachedException("API limit reached");
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}
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throw new NewznabException("Newznab error detected: {0}", errorMessage);
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}
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protected override ReleaseInfo ProcessItem(XElement item, ReleaseInfo releaseInfo)
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{
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releaseInfo = base.ProcessItem(item, releaseInfo);
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releaseInfo.TvRageId = GetTvRageId(item);
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return releaseInfo;
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}
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protected override String GetInfoUrl(XElement item)
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{
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return item.TryGetValue("comments").TrimEnd("#comments");
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}
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protected override String GetCommentUrl(XElement item)
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{
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return item.TryGetValue("comments");
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}
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protected override Int64 GetSize(XElement item)
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{
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Int64 size;
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var sizeString = TryGetNewznabAttribute(item, "size");
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if (!sizeString.IsNullOrWhiteSpace() && Int64.TryParse(sizeString, out size))
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{
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return size;
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}
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size = GetEnclosureLength(item);
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return size;
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}
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protected override DateTime GetPublishDate(XElement item)
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{
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var dateString = TryGetNewznabAttribute(item, "usenetdate");
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if (!dateString.IsNullOrWhiteSpace())
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{
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return XElementExtensions.ParseDate(dateString);
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}
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return base.GetPublishDate(item);
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}
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protected virtual Int32 GetTvRageId(XElement item)
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{
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var tvRageIdString = TryGetNewznabAttribute(item, "rageid");
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Int32 tvRageId;
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if (!tvRageIdString.IsNullOrWhiteSpace() && Int32.TryParse(tvRageIdString, out tvRageId))
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{
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return tvRageId;
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}
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return 0;
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}
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protected String TryGetNewznabAttribute(XElement item, String key, String defaultValue = "")
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{
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var attr = item.Elements(ns + "attr").SingleOrDefault(e => e.Attribute("name").Value.Equals(key, StringComparison.CurrentCultureIgnoreCase));
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if (attr != null)
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{
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return attr.Attribute("value").Value;
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}
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return defaultValue;
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}
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}
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}
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