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Sonarr/NzbDrone.Core/Update/UpdatePackageProvider.cs
2013-04-14 18:41:39 -07:00

61 lines
2.0 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using NLog;
using NzbDrone.Common;
using NzbDrone.Core.Configuration;
namespace NzbDrone.Core.Update
{
public interface IUpdatePackageProvider
{
IEnumerable<UpdatePackage> GetAvailablePackages();
UpdatePackage GetLatestUpdate();
}
public class UpdatePackageProvider : IUpdatePackageProvider
{
private readonly IConfigService _configService;
private readonly IHttpProvider _httpProvider;
private readonly Logger _logger;
private static readonly Regex ParseRegex = new Regex(@"(?:\>)(?<filename>NzbDrone.+?(?<version>\d+\.\d+\.\d+\.\d+).+?)(?:\<\/A\>)", RegexOptions.IgnoreCase);
public UpdatePackageProvider(IConfigService configService, IHttpProvider httpProvider, Logger logger)
{
_configService = configService;
_httpProvider = httpProvider;
_logger = logger;
}
public IEnumerable<UpdatePackage> GetAvailablePackages()
{
var updateList = new List<UpdatePackage>();
var updateUrl = _configService.UpdateUrl;
_logger.Debug("Getting a list of updates from {0}", updateUrl);
var rawUpdateList = _httpProvider.DownloadString(updateUrl);
var matches = ParseRegex.Matches(rawUpdateList);
foreach (Match match in matches)
{
var updatePackage = new UpdatePackage();
updatePackage.FileName = match.Groups["filename"].Value;
updatePackage.Url = updateUrl + updatePackage.FileName;
updatePackage.Version = new Version(match.Groups["version"].Value);
updateList.Add(updatePackage);
}
_logger.Debug("Found {0} update packages", updateUrl.Length);
return updateList;
}
public UpdatePackage GetLatestUpdate()
{
return GetAvailablePackages().OrderByDescending(c => c.Version).FirstOrDefault();
}
}
}