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Nitrox.Launcher/Models/Utils/Downloader.cs
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194
Nitrox.Launcher/Models/Utils/Downloader.cs
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Net.Http;
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using System.Net.Http.Headers;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Avalonia.Media.Imaging;
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using LitJson;
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using Nitrox.Launcher.Models.Design;
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using NitroxModel.Logger;
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namespace Nitrox.Launcher.Models.Utils;
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public partial class Downloader
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{
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public const string BLOGS_URL = "https://nitroxblog.rux.gg/wp-json/wp/v2/posts?per_page=8&page=1";
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public const string LATEST_VERSION_URL = "https://nitrox.rux.gg/api/version/latest";
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public const string CHANGELOGS_URL = "https://nitrox.rux.gg/api/changelog/releases";
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public const string RELEASES_URL = "https://nitrox.rux.gg/api/version/releases";
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[GeneratedRegex(@"""version"":""([^""]*)""")]
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private static partial Regex JsonVersionFieldRegex { get; }
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public static async Task<IList<NitroxBlog>> GetBlogsAsync()
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{
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IList<NitroxBlog> blogs = new List<NitroxBlog>();
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try
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{
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string jsonString = await CacheFile.GetOrRefreshAsync("blogs",
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r => r.Read(""),
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(w, v) => w.Write(v),
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async () =>
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{
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using HttpResponseMessage response = await GetResponseFromCacheAsync(BLOGS_URL);
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return await response.Content.ReadAsStringAsync();
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});
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JsonData data = JsonMapper.ToObject(jsonString);
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// TODO : Add a json schema validator
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for (int i = 0; i < data.Count; i++)
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{
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string released = (string)data[i]["date"];
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string url = (string)data[i]["link"];
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string title = WebUtility.HtmlDecode((string)data[i]["title"]["rendered"]);
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string imageUrl = (string)data[i]["jetpack_featured_media_url"];
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string imageCacheName = $"blogimage_{title.ReplaceInvalidFileNameCharacters().ToLowerInvariant()}";
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if (!DateTimeOffset.TryParse(released, out DateTimeOffset dateTime))
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{
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dateTime = DateTimeOffset.UtcNow;
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Log.Error($"Error while trying to parse release time ({released}) of blog {url}");
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}
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else
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{
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imageCacheName = $"blogimage_{dateTime.ToUnixTimeSeconds()}";
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}
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// Get image bitmap from image URL
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byte[] imageData = await CacheFile.GetOrRefreshAsync(imageCacheName,
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r => r.Read<byte[]>(),
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(w, v) =>
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{
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w.Write(v.Length);
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w.Write(v);
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},
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async () =>
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{
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HttpResponseMessage imageResponse = await GetResponseFromCacheAsync(imageUrl);
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return await imageResponse.Content.ReadAsByteArrayAsync();
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});
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using MemoryStream imageMemoryStream = new(imageData);
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Bitmap image = new(imageMemoryStream);
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blogs.Add(new NitroxBlog(title, DateOnly.FromDateTime(dateTime.DateTime), url, image));
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, $"{nameof(Downloader)} : Error while fetching Nitrox blogs from {BLOGS_URL}");
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LauncherNotifier.Error("Unable to fetch Nitrox blogs");
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}
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return blogs;
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}
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public static async Task<IList<NitroxChangelog>> GetChangeLogsAsync()
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{
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IList<NitroxChangelog> changelogs = new List<NitroxChangelog>();
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try
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{
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//https://developer.wordpress.org/rest-api/reference/posts/#arguments
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string jsonString = await CacheFile.GetOrRefreshAsync("changelogs",
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r => r.Read(""),
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(w, v) => w.Write(v),
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async () =>
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{
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using HttpResponseMessage response = await GetResponseFromCacheAsync(CHANGELOGS_URL);
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return await response.Content.ReadAsStringAsync();
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});
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StringBuilder builder = new();
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JsonData data = JsonMapper.ToObject(jsonString);
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// TODO : Add a json schema validator
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for (int i = 0; i < data.Count; i++)
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{
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string version = (string)data[i]["version"];
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string released = (string)data[i]["released"];
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JsonData patchnotes = data[i]["patchnotes"];
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if (!DateTime.TryParse(released, out DateTime dateTime))
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{
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dateTime = DateTime.UtcNow;
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Log.Error($"Error while trying to parse release time ({released}) of Nitrox v{version}");
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}
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builder.Clear();
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for (int j = 0; j < patchnotes.Count; j++)
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{
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if (patchnotes[j].ToString().StartsWith('-'))
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{
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builder.AppendLine($"\n[b][u]{patchnotes[j].ToString().TrimStart('-', ' ')}[/u][/b]");
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}
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else
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{
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builder.AppendLine($"• {(string)patchnotes[j]}");
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}
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}
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changelogs.Add(new NitroxChangelog(version, dateTime, builder.ToString()));
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, $"{nameof(Downloader)} : Error while fetching Nitrox changelogs from {CHANGELOGS_URL}");
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LauncherNotifier.Error("Unable to fetch Nitrox changelogs");
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}
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return changelogs;
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}
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public static async Task<Version> GetNitroxLatestVersionAsync()
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{
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try
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{
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string jsonString = await CacheFile.GetOrRefreshAsync("update",
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r => r.Read(""),
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(w, v) => w.Write(v),
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async () =>
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{
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using HttpResponseMessage response = await GetResponseFromCacheAsync(LATEST_VERSION_URL);
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return await response.Content.ReadAsStringAsync();
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});
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Match match = JsonVersionFieldRegex.Match(jsonString);
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if (match.Success && match.Groups.Count > 1)
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{
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return new Version(match.Groups[1].Value);
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, $"{nameof(Downloader)} : Error while fetching Nitrox version from {LATEST_VERSION_URL}");
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LauncherNotifier.Error("Unable to check for Nitrox updates");
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throw;
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}
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return new Version();
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}
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private static async Task<HttpResponseMessage> GetResponseFromCacheAsync(string url)
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{
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Log.Info($"Trying to request data from {url}");
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using HttpClient client = new();
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client.DefaultRequestHeaders.UserAgent.ParseAdd("Nitrox.Launcher");
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client.DefaultRequestHeaders.CacheControl = new CacheControlHeaderValue { MaxAge = TimeSpan.FromDays(1) };
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client.Timeout = TimeSpan.FromSeconds(5);
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try
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{
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return await client.GetAsync(url);
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}
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catch (Exception ex)
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{
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Log.Error(ex, $"Error while requesting data from {url}");
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}
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return null;
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}
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}
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