/// <summary>
/// Скачать страницу.
/// </summary>
/// <param name="chapterFolder">Папка для файлов.</param>
public async Task Download(string chapterFolder)
{
this.IsDownloaded = false;
if (restartCounter > MaxAttempt)
{
throw new DownloadAttemptFailed(restartCounter, this);
}
try
{
await DownloadManager.CheckPause().ConfigureAwait(false);
using (await ThrottleService.WaitAsync().ConfigureAwait(false))
{
await DownloadManager.CheckPause().ConfigureAwait(false);
if (!DirectoryHelpers.ValidateSettingPath(chapterFolder))
{
throw new DirectoryNotFoundException($"Попытка скачивания в папку {chapterFolder}, папка не существует.");
}
if (!Directory.Exists(chapterFolder))
{
Directory.CreateDirectory(chapterFolder);
}
var manga = Chapter?.Volume?.Manga ?? Chapter?.Manga ?? Manga;
var plugin = ConfigStorage.Plugins.Single(p => p.MangaType == manga.GetType());
var cache = MangaSettingCache.Get(plugin.GetType());
var file = await DownloadManager.DownloadImage(this.ImageLink, cache).ConfigureAwait(false);
if (!file.Exist)
{
OnDownloadFailed();
}
var fileName = this.Number.ToString(CultureInfo.InvariantCulture).PadLeft(4, '0') + "." + file.Extension;
await file.Save(Path.Combine(chapterFolder, fileName)).ConfigureAwait(false);
this.IsDownloaded = true;
}
}
catch (System.Exception ex)
{
Log.Exception(ex, this.Uri.OriginalString);
++restartCounter;
await Download(chapterFolder).ConfigureAwait(false);
}
}
private static async Task <(HttpResponseMessage, System.Exception)> DoWithRestarts(Uri uri, HttpClient client,
Func <Uri, HttpClient, Task <HttpResponseMessage> > func, int restartCounter = 0)
{
try
{
if (restartCounter > 3)
{
throw new DownloadAttemptFailed(restartCounter, uri);
}
HttpResponseMessage content;
using (await ThrottleService.WaitAsync().ConfigureAwait(false))
{
content = await func(uri, client).ConfigureAwait(false);
}
if (await RequestCanBeRetry(content).ConfigureAwait(false))
{
Log.Error($"{Strings.Page_GetPage_SiteOff}, код {content.StatusCode}, ссылка: {uri}, попытка номер - {restartCounter}");
++restartCounter;
return(await DoWithRestarts(uri, client, func, restartCounter).ConfigureAwait(false));
}
return(content, null);
}
catch (TaskCanceledException ex)
{
Log.Exception(ex, $"{Strings.Page_GetPage_SiteOff}, ссылка: {uri}, попытка номер - {restartCounter}");
++restartCounter;
return(await DoWithRestarts(uri, client, func, restartCounter).ConfigureAwait(false));
}
catch (HttpRequestException ex) when(ex.InnerException is System.Net.Sockets.SocketException || ex.InnerException is System.IO.IOException)
{
Log.Exception(ex, $"{Strings.Page_GetPage_SiteOff}, ссылка: {uri}, попытка номер - {restartCounter}");
++restartCounter;
return(await DoWithRestarts(uri, client, func, restartCounter).ConfigureAwait(false));
}
catch (System.Exception ex)
{
Log.Exception(ex, $"Не удалось получить страницу: {uri}");
return(null, ex);
}
}
/// <summary>
/// Скачать страницу.
/// </summary>
/// <param name="chapterFolder">Папка для файлов.</param>
public async Task Download(string chapterFolder)
{
this.IsDownloaded = false;
if (restartCounter > MaxAttempt)
{
throw new DownloadAttemptFailed(restartCounter, this);
}
try
{
await DownloadManager.CheckPause();
using (await ThrottleService.WaitAsync())
{
await DownloadManager.CheckPause();
chapterFolder = DirectoryHelpers.MakeValidPath(chapterFolder);
if (!Directory.Exists(chapterFolder))
{
Directory.CreateDirectory(chapterFolder);
}
var file = await DownloadManager.DownloadImage(this.ImageLink);
if (!file.Exist)
{
OnDownloadFailed();
}
var fileName = this.Number.ToString(CultureInfo.InvariantCulture).PadLeft(4, '0') + "." + file.Extension;
await file.Save(Path.Combine(chapterFolder, fileName));
this.IsDownloaded = true;
}
}
catch (System.Exception ex)
{
Log.Exception(ex, this.Uri.OriginalString);
++restartCounter;
await Download(chapterFolder);
}
}