102 lines
3.4 KiB
C#
102 lines
3.4 KiB
C#
using System.Reflection;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using Newtonsoft.Json;
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namespace RdtClient.Service.BackgroundServices;
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public class UpdateChecker(ILogger<UpdateChecker> logger, IHttpClientFactory httpClientFactory) : BackgroundService
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{
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private static readonly List<String> KnownGhsaIds = [];
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public static String? CurrentVersion { get; private set; }
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public static String? LatestVersion { get; private set; }
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public static Boolean? IsInsecure { get; private set; }
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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while (!Startup.Ready)
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{
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await Task.Delay(1000, stoppingToken);
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}
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var version = Assembly.GetEntryAssembly()?.GetName().Version?.ToString();
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if (String.IsNullOrWhiteSpace(version))
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{
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CurrentVersion = "";
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return;
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}
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CurrentVersion = $"v{version[..version.LastIndexOf('.')]}";
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logger.LogInformation("UpdateChecker started, currently on version {CurrentVersion}.", CurrentVersion);
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while (!stoppingToken.IsCancellationRequested)
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{
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try
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{
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var gitHubReleases = await GitHubRequest<List<GitHubReleasesResponse>>("/repos/rogerfar/rdt-client/tags?per_page=1", stoppingToken);
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var latestRelease = gitHubReleases?.FirstOrDefault(m => m.Name != null)?.Name;
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if (latestRelease == null)
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{
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logger.LogWarning($"Unable to find latest version on GitHub");
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return;
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}
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if (latestRelease != CurrentVersion)
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{
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logger.LogInformation("New version found on GitHub: {latestRelease}", latestRelease);
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}
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LatestVersion = latestRelease;
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var gitHubSecurityAdvisories = await GitHubRequest<List<GitHubSecurityAdvisoriesResponse>>("/repos/rogerfar/rdt-client/security-advisories", stoppingToken);
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var unseenGhsaIds = gitHubSecurityAdvisories?.Where(advisory => !KnownGhsaIds.Contains(advisory.GhsaId));
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if (unseenGhsaIds == null)
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{
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logger.LogWarning($"Unable to find security advisories on GitHub");
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return;
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}
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IsInsecure = unseenGhsaIds.Any();
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}
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catch (Exception ex)
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{
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logger.LogDebug(ex, "Unexpected error occurred while checking for updates. This error is safe to ignore.");
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}
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await Task.Delay(TimeSpan.FromHours(1), stoppingToken);
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}
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logger.LogInformation("UpdateChecker stopped.");
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}
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private async Task<T?> GitHubRequest<T>(String endpoint, CancellationToken cancellationToken)
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{
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var httpClient = httpClientFactory.CreateClient();
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httpClient.DefaultRequestHeaders.UserAgent.Add(new("RdtClient", CurrentVersion));
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var response = await httpClient.GetStringAsync($"https://api.github.com{endpoint}", cancellationToken);
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return JsonConvert.DeserializeObject<T>(response);
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}
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}
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public class GitHubReleasesResponse
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{
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[JsonProperty("name")]
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public String? Name { get; set; }
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}
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public class GitHubSecurityAdvisoriesResponse
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{
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[JsonProperty("ghsa_id")]
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public required String GhsaId { get; set; }
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}
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