using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Threading; using System.Threading.Tasks; using MediaBrowser.Common.Net; using MediaBrowser.Model.Serialization; using MediaBrowser.Model.Updates; namespace MediaBrowser.Common.Implementations.Updates { public class GithubUpdater { private readonly IHttpClient _httpClient; private readonly IJsonSerializer _jsonSerializer; private TimeSpan _cacheLength; public GithubUpdater(IHttpClient httpClient, IJsonSerializer jsonSerializer, TimeSpan cacheLength) { _httpClient = httpClient; _jsonSerializer = jsonSerializer; _cacheLength = cacheLength; } public async Task CheckForUpdateResult(string organzation, string repository, Version minVersion, PackageVersionClass updateLevel, string assetFilename, string packageName, string targetFilename, CancellationToken cancellationToken) { var url = string.Format("https://api.github.com/repos/{0}/{1}/releases", organzation, repository); var options = new HttpRequestOptions { Url = url, EnableKeepAlive = false, CancellationToken = cancellationToken, UserAgent = "Emby/3.0" }; if (_cacheLength.Ticks > 0) { options.CacheMode = CacheMode.Unconditional; options.CacheLength = _cacheLength; } using (var stream = await _httpClient.Get(options).ConfigureAwait(false)) { var obj = _jsonSerializer.DeserializeFromStream(stream); return CheckForUpdateResult(obj, minVersion, updateLevel, assetFilename, packageName, targetFilename); } } private CheckForUpdateResult CheckForUpdateResult(RootObject[] obj, Version minVersion, PackageVersionClass updateLevel, string assetFilename, string packageName, string targetFilename) { if (updateLevel == PackageVersionClass.Release) { obj = obj.Where(i => !i.prerelease).ToArray(); } else if (updateLevel == PackageVersionClass.Beta) { obj = obj.Where(i => !i.prerelease || i.name.EndsWith("-beta", StringComparison.OrdinalIgnoreCase)).ToArray(); } else if (updateLevel == PackageVersionClass.Dev) { obj = obj.Where(i => !i.prerelease || i.name.EndsWith("-beta", StringComparison.OrdinalIgnoreCase) || i.name.EndsWith("-dev", StringComparison.OrdinalIgnoreCase)).ToArray(); } var availableUpdate = obj .Select(i => CheckForUpdateResult(i, minVersion, assetFilename, packageName, targetFilename)) .Where(i => i != null) .OrderByDescending(i => Version.Parse(i.AvailableVersion)) .FirstOrDefault(); return availableUpdate ?? new CheckForUpdateResult { IsUpdateAvailable = false }; } private CheckForUpdateResult CheckForUpdateResult(RootObject obj, Version minVersion, string assetFilename, string packageName, string targetFilename) { Version version; if (!Version.TryParse(obj.tag_name, out version)) { return null; } if (version < minVersion) { return null; } var asset = (obj.assets ?? new List()).FirstOrDefault(i => IsAsset(i, assetFilename)); if (asset == null) { return null; } return new CheckForUpdateResult { AvailableVersion = version.ToString(), IsUpdateAvailable = version > minVersion, Package = new PackageVersionInfo { classification = obj.prerelease ? (obj.name.EndsWith("-dev", StringComparison.OrdinalIgnoreCase) ? PackageVersionClass.Dev : PackageVersionClass.Beta) : PackageVersionClass.Release, name = packageName, sourceUrl = asset.browser_download_url, targetFilename = targetFilename, versionStr = version.ToString(), requiredVersionStr = "1.0.0", description = obj.body } }; } private bool IsAsset(Asset asset, string assetFilename) { var downloadFilename = Path.GetFileName(asset.browser_download_url) ?? string.Empty; if (downloadFilename.IndexOf(assetFilename, StringComparison.OrdinalIgnoreCase) != -1) { return true; } return string.Equals(assetFilename, downloadFilename, StringComparison.OrdinalIgnoreCase); } public class Uploader { public string login { get; set; } public int id { get; set; } public string avatar_url { get; set; } public string gravatar_id { get; set; } public string url { get; set; } public string html_url { get; set; } public string followers_url { get; set; } public string following_url { get; set; } public string gists_url { get; set; } public string starred_url { get; set; } public string subscriptions_url { get; set; } public string organizations_url { get; set; } public string repos_url { get; set; } public string events_url { get; set; } public string received_events_url { get; set; } public string type { get; set; } public bool site_admin { get; set; } } public class Asset { public string url { get; set; } public int id { get; set; } public string name { get; set; } public object label { get; set; } public Uploader uploader { get; set; } public string content_type { get; set; } public string state { get; set; } public int size { get; set; } public int download_count { get; set; } public string created_at { get; set; } public string updated_at { get; set; } public string browser_download_url { get; set; } } public class Author { public string login { get; set; } public int id { get; set; } public string avatar_url { get; set; } public string gravatar_id { get; set; } public string url { get; set; } public string html_url { get; set; } public string followers_url { get; set; } public string following_url { get; set; } public string gists_url { get; set; } public string starred_url { get; set; } public string subscriptions_url { get; set; } public string organizations_url { get; set; } public string repos_url { get; set; } public string events_url { get; set; } public string received_events_url { get; set; } public string type { get; set; } public bool site_admin { get; set; } } public class RootObject { public string url { get; set; } public string assets_url { get; set; } public string upload_url { get; set; } public string html_url { get; set; } public int id { get; set; } public string tag_name { get; set; } public string target_commitish { get; set; } public string name { get; set; } public bool draft { get; set; } public Author author { get; set; } public bool prerelease { get; set; } public string created_at { get; set; } public string published_at { get; set; } public List assets { get; set; } public string tarball_url { get; set; } public string zipball_url { get; set; } public string body { get; set; } } } }