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downkyi/DownKyi/Services/Download/AriaDownloadService.cs

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using DownKyi.Core.Aria2cNet;
using DownKyi.Core.Aria2cNet.Client;
using DownKyi.Core.Aria2cNet.Client.Entity;
using DownKyi.Core.Aria2cNet.Server;
using DownKyi.Core.BiliApi.Login;
using DownKyi.Core.BiliApi.VideoStream;
using DownKyi.Core.BiliApi.VideoStream.Models;
using DownKyi.Core.Danmaku2Ass;
using DownKyi.Core.FFmpeg;
using DownKyi.Core.Logging;
using DownKyi.Core.Settings;
using DownKyi.Core.Storage;
using DownKyi.Core.Utils;
using DownKyi.Images;
using DownKyi.Models;
using DownKyi.Utils;
using DownKyi.ViewModels.DownloadManager;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace DownKyi.Services.Download
{
/// <summary>
/// 音视频采用Aria下载其余采用WebClient下载
/// </summary>
public class AriaDownloadService : DownloadService, IDownloadService
{
private CancellationTokenSource tokenSource;
private int retry = 5;
private string nullMark = "<null>";
public AriaDownloadService(ObservableCollection<DownloadingItem> downloadingList, ObservableCollection<DownloadedItem> downloadedList) : base(downloadingList, downloadedList)
{
Tag = "AriaDownloadService";
}
#region 音视频
/// <summary>
/// 下载音频,返回下载文件路径
/// </summary>
/// <param name="downloading"></param>
/// <returns></returns>
public string DownloadAudio(DownloadingItem downloading)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("WhileDownloading");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingAudio");
// 如果没有Dash返回null
if (downloading.PlayUrl == null || downloading.PlayUrl.Dash == null) { return null; }
// 如果audio列表没有内容则返回null
if (downloading.PlayUrl.Dash.Audio == null) { return null; }
else if (downloading.PlayUrl.Dash.Audio.Count == 0) { return null; }
// 根据音频id匹配
PlayUrlDashVideo downloadAudio = null;
foreach (PlayUrlDashVideo audio in downloading.PlayUrl.Dash.Audio)
{
if (audio.Id == downloading.AudioCodec.Id)
{
downloadAudio = audio;
break;
}
}
// 避免Dolby==null及其它未知情况直接使用异常捕获
try
{
// Dolby Atmos
if (downloading.AudioCodec.Id == 30250)
{
downloadAudio = downloading.PlayUrl.Dash.Dolby.Audio[0];
}
}
catch (Exception) { }
return DownloadVideo(downloading, downloadAudio);
}
/// <summary>
/// 下载视频,返回下载文件路径
/// </summary>
/// <param name="downloading"></param>
/// <returns></returns>
public string DownloadVideo(DownloadingItem downloading)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("WhileDownloading");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingVideo");
// 如果没有Dash返回null
if (downloading.PlayUrl == null || downloading.PlayUrl.Dash == null) { return null; }
// 如果Video列表没有内容则返回null
if (downloading.PlayUrl.Dash.Video == null) { return null; }
else if (downloading.PlayUrl.Dash.Video.Count == 0) { return null; }
// 根据视频编码匹配
PlayUrlDashVideo downloadVideo = null;
foreach (PlayUrlDashVideo video in downloading.PlayUrl.Dash.Video)
{
if (video.Id == downloading.Resolution.Id && Utils.GetVideoCodecName(video.Codecs) == downloading.VideoCodecName)
{
downloadVideo = video;
break;
}
}
return DownloadVideo(downloading, downloadVideo);
}
/// <summary>
/// 将下载音频和视频的函数中相同代码抽象出来
/// </summary>
/// <param name="downloading"></param>
/// <param name="downloadVideo"></param>
/// <returns></returns>
private string DownloadVideo(DownloadingItem downloading, PlayUrlDashVideo downloadVideo)
{
// 如果为空,说明没有匹配到可下载的音频视频
if (downloadVideo == null) { return null; }
// 下载链接
List<string> urls = new List<string>();
if (downloadVideo.BaseUrl != null) { urls.Add(downloadVideo.BaseUrl); }
if (downloadVideo.BackupUrl != null) { urls.AddRange(downloadVideo.BackupUrl); }
// 路径
string[] temp = downloading.DownloadBase.FilePath.Split('/');
string path = downloading.DownloadBase.FilePath.Replace(temp[temp.Length - 1], "");
// 下载文件名
string fileName = Guid.NewGuid().ToString("N");
string key = $"{downloadVideo.Id}_{downloadVideo.Codecs}";
if (downloading.Downloading.DownloadFiles.ContainsKey(key))
{
// 如果存在,表示下载过,
// 则继续使用上次下载的文件名
fileName = downloading.Downloading.DownloadFiles[key];
}
else
{
// 记录本次下载的文件
try
{
downloading.Downloading.DownloadFiles.Add(key, fileName);
}
catch (ArgumentException) { }
}
// 开始下载
DownloadResult downloadStatus = DownloadByAria(downloading, urls, path, fileName);
switch (downloadStatus)
{
case DownloadResult.SUCCESS:
return Path.Combine(path, fileName);
case DownloadResult.FAILED:
case DownloadResult.ABORT:
default:
return nullMark;
}
}
#endregion
/// <summary>
/// 下载封面
/// </summary>
/// <param name="downloading"></param>
public string DownloadCover(DownloadingItem downloading, string coverUrl, string fileName)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("WhileDownloading");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingCover");
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
// 查询、保存封面
StorageCover storageCover = new StorageCover();
string cover = storageCover.GetCover(downloading.DownloadBase.Avid, downloading.DownloadBase.Bvid, downloading.DownloadBase.Cid, coverUrl);
if (cover == null)
{
return null;
}
// 复制图片到指定位置
try
{
File.Copy(cover, fileName, true);
// 记录本次下载的文件
if (!downloading.Downloading.DownloadFiles.ContainsKey(coverUrl))
{
downloading.Downloading.DownloadFiles.Add(coverUrl, fileName);
}
return fileName;
}
catch (Exception e)
{
Core.Utils.Debugging.Console.PrintLine(e);
LogManager.Error(Tag, e);
}
return null;
}
/// <summary>
/// 下载弹幕
/// </summary>
/// <param name="downloading"></param>
public string DownloadDanmaku(DownloadingItem downloading)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("WhileDownloading");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingDanmaku");
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
string title = $"{downloading.Name}";
string assFile = $"{downloading.DownloadBase.FilePath}.ass";
// 记录本次下载的文件
if (!downloading.Downloading.DownloadFiles.ContainsKey("danmaku"))
{
downloading.Downloading.DownloadFiles.Add("danmaku", assFile);
}
int screenWidth = SettingsManager.GetInstance().GetDanmakuScreenWidth();
int screenHeight = SettingsManager.GetInstance().GetDanmakuScreenHeight();
//if (SettingsManager.GetInstance().IsCustomDanmakuResolution() != AllowStatus.YES)
//{
// if (downloadingEntity.Width > 0 && downloadingEntity.Height > 0)
// {
// screenWidth = downloadingEntity.Width;
// screenHeight = downloadingEntity.Height;
// }
//}
// 字幕配置
Config subtitleConfig = new Config
{
Title = title,
ScreenWidth = screenWidth,
ScreenHeight = screenHeight,
FontName = SettingsManager.GetInstance().GetDanmakuFontName(),
BaseFontSize = SettingsManager.GetInstance().GetDanmakuFontSize(),
LineCount = SettingsManager.GetInstance().GetDanmakuLineCount(),
LayoutAlgorithm = SettingsManager.GetInstance().GetDanmakuLayoutAlgorithm().ToString("G").ToLower(), // async/sync
TuneDuration = 0,
DropOffset = 0,
BottomMargin = 0,
CustomOffset = 0
};
Core.Danmaku2Ass.Bilibili.GetInstance()
.SetTopFilter(SettingsManager.GetInstance().GetDanmakuTopFilter() == AllowStatus.YES)
.SetBottomFilter(SettingsManager.GetInstance().GetDanmakuBottomFilter() == AllowStatus.YES)
.SetScrollFilter(SettingsManager.GetInstance().GetDanmakuScrollFilter() == AllowStatus.YES)
.Create(downloading.DownloadBase.Avid, downloading.DownloadBase.Cid, subtitleConfig, assFile);
return assFile;
}
/// <summary>
/// 下载字幕
/// </summary>
/// <param name="downloading"></param>
public List<string> DownloadSubtitle(DownloadingItem downloading)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("WhileDownloading");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingSubtitle");
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
List<string> srtFiles = new List<string>();
var subRipTexts = VideoStream.GetSubtitle(downloading.DownloadBase.Avid, downloading.DownloadBase.Bvid, downloading.DownloadBase.Cid);
if (subRipTexts == null)
{
return null;
}
foreach (var subRip in subRipTexts)
{
string srtFile = $"{downloading.DownloadBase.FilePath}_{subRip.LanDoc}.srt";
try
{
File.WriteAllText(srtFile, subRip.SrtString);
// 记录本次下载的文件
if (!downloading.Downloading.DownloadFiles.ContainsKey("subtitle"))
{
downloading.Downloading.DownloadFiles.Add("subtitle", srtFile);
}
srtFiles.Add(srtFile);
}
catch (Exception e)
{
Core.Utils.Debugging.Console.PrintLine("DownloadSubtitle()发生异常: {0}", e);
LogManager.Error("DownloadSubtitle()", e);
}
}
return srtFiles;
}
/// <summary>
/// 混流音频和视频
/// </summary>
/// <param name="downloading"></param>
/// <param name="audioUid"></param>
/// <param name="videoUid"></param>
/// <returns></returns>
public string MixedFlow(DownloadingItem downloading, string audioUid, string videoUid)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("MixedFlow");
downloading.DownloadContent = DictionaryResource.GetString("DownloadingVideo");
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
if (videoUid == nullMark)
{
return null;
}
string finalFile = $"{downloading.DownloadBase.FilePath}.mp4";
if (videoUid == null)
{
finalFile = $"{downloading.DownloadBase.FilePath}.aac";
}
// 合并音视频
FFmpegHelper.MergeVideo(audioUid, videoUid, finalFile);
// 获取文件大小
if (File.Exists(finalFile))
{
FileInfo info = new FileInfo(finalFile);
downloading.FileSize = Format.FormatFileSize(info.Length);
}
else
{
downloading.FileSize = Format.FormatFileSize(0);
}
return finalFile;
}
/// <summary>
/// 解析视频流的下载链接
/// </summary>
/// <param name="downloading"></param>
public void Parse(DownloadingItem downloading)
{
// 更新状态显示
downloading.DownloadStatusTitle = DictionaryResource.GetString("Parsing");
downloading.DownloadContent = string.Empty;
// 下载大小
downloading.DownloadingFileSize = string.Empty;
// 下载速度
downloading.SpeedDisplay = string.Empty;
if (downloading.PlayUrl != null && downloading.Downloading.DownloadStatus == DownloadStatus.NOT_STARTED)
{
// 设置下载状态
downloading.Downloading.DownloadStatus = DownloadStatus.DOWNLOADING;
return;
}
// 设置下载状态
downloading.Downloading.DownloadStatus = DownloadStatus.DOWNLOADING;
// 解析
switch (downloading.Downloading.PlayStreamType)
{
case PlayStreamType.VIDEO:
downloading.PlayUrl = VideoStream.GetVideoPlayUrl(downloading.DownloadBase.Avid, downloading.DownloadBase.Bvid, downloading.DownloadBase.Cid);
break;
case PlayStreamType.BANGUMI:
downloading.PlayUrl = VideoStream.GetBangumiPlayUrl(downloading.DownloadBase.Avid, downloading.DownloadBase.Bvid, downloading.DownloadBase.Cid);
break;
case PlayStreamType.CHEESE:
downloading.PlayUrl = VideoStream.GetCheesePlayUrl(downloading.DownloadBase.Avid, downloading.DownloadBase.Bvid, downloading.DownloadBase.Cid, downloading.DownloadBase.EpisodeId);
break;
default:
break;
}
}
/// <summary>
/// 停止下载服务
/// </summary>
public void End()
{
// 下载数据存储服务
DownloadStorageService downloadStorageService = new DownloadStorageService();
// 保存数据
foreach (DownloadingItem item in downloadingList)
{
switch (item.Downloading.DownloadStatus)
{
case DownloadStatus.NOT_STARTED:
break;
case DownloadStatus.WAIT_FOR_DOWNLOAD:
break;
case DownloadStatus.PAUSE_STARTED:
break;
case DownloadStatus.PAUSE:
break;
case DownloadStatus.DOWNLOADING:
// TODO 添加设置让用户选择重启后是否自动开始下载
item.Downloading.DownloadStatus = DownloadStatus.WAIT_FOR_DOWNLOAD;
item.Downloading.DownloadStatus = DownloadStatus.PAUSE;
break;
case DownloadStatus.DOWNLOAD_SUCCEED:
case DownloadStatus.DOWNLOAD_FAILED:
break;
default:
break;
}
item.Progress = 0;
downloadStorageService.UpdateDownloading(item);
}
foreach (DownloadedItem item in downloadedList)
{
downloadStorageService.UpdateDownloaded(item);
}
// 关闭Aria服务器
CloseAriaServer();
// 结束任务
tokenSource.Cancel();
}
/// <summary>
/// 启动下载服务
/// </summary>
public async void Start()
{
// 启动Aria服务器
StartAriaServer();
await Task.Run(DoWork, (tokenSource = new CancellationTokenSource()).Token);
}
/// <summary>
/// 执行任务
/// </summary>
private void DoWork()
{
CancellationToken cancellationToken = tokenSource.Token;
while (true)
{
int maxDownloading = SettingsManager.GetInstance().GetAriaMaxConcurrentDownloads();
int downloadingCount = 0;
try
{
foreach (DownloadingItem downloading in downloadingList)
{
if (downloading.Downloading.DownloadStatus == DownloadStatus.DOWNLOADING)
{
downloadingCount++;
}
}
foreach (DownloadingItem downloading in downloadingList)
{
if (downloadingCount >= maxDownloading)
{
break;
}
// 开始下载
if (downloading.Downloading.DownloadStatus == DownloadStatus.NOT_STARTED || downloading.Downloading.DownloadStatus == DownloadStatus.WAIT_FOR_DOWNLOAD)
{
SingleDownload(downloading);
downloadingCount++;
}
}
}
catch (InvalidOperationException e)
{
Core.Utils.Debugging.Console.PrintLine("Start DoWork()发生InvalidOperationException异常: {0}", e);
LogManager.Error("Start DoWork() InvalidOperationException", e);
}
catch (Exception e)
{
Core.Utils.Debugging.Console.PrintLine("Start DoWork()发生异常: {0}", e);
LogManager.Error("Start DoWork()", e);
}
// 判断是否该结束线程若为true跳出while循环
if (cancellationToken.IsCancellationRequested)
{
Core.Utils.Debugging.Console.PrintLine("AriaDownloadService: 下载服务结束跳出while循环");
LogManager.Debug(Tag, "下载服务结束");
break;
}
// 降低CPU占用
Thread.Sleep(500);
}
}
/// <summary>
/// 下载一个视频
/// </summary>
/// <param name="downloading"></param>
/// <returns></returns>
private async void SingleDownload(DownloadingItem downloading)
{
// 路径
string[] temp = downloading.DownloadBase.FilePath.Split('/');
string path = downloading.DownloadBase.FilePath.Replace(temp[temp.Length - 1], "");
// 路径不存在则创建
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
await Task.Run(new Action(() =>
{
// 初始化
downloading.DownloadStatusTitle = string.Empty;
downloading.DownloadContent = string.Empty;
//downloading.Downloading.DownloadFiles.Clear();
// 解析并依次下载音频、视频、弹幕、字幕、封面等内容
Parse(downloading);
// 设置下载状态
// 必须在解析之后设置为DOWNLOADING
downloading.Downloading.DownloadStatus = DownloadStatus.DOWNLOADING;
// 暂停
Pause(downloading);
// 是否存在
var isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
string audioUid = null;
// 如果需要下载音频
if (downloading.DownloadBase.NeedDownloadContent["downloadAudio"])
{
//audioUid = DownloadAudio(downloading);
for (int i = 0; i < retry; i++)
{
audioUid = DownloadAudio(downloading);
if (audioUid != null && audioUid != "<null>")
{
break;
}
}
}
if (audioUid == "<null>")
{
DownloadFailed(downloading);
return;
}
// 暂停
Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
string videoUid = null;
// 如果需要下载视频
if (downloading.DownloadBase.NeedDownloadContent["downloadVideo"])
{
//videoUid = DownloadVideo(downloading);
for (int i = 0; i < retry; i++)
{
videoUid = DownloadVideo(downloading);
if (videoUid != null && videoUid != "<null>")
{
break;
}
}
}
if (videoUid == "<null>")
{
DownloadFailed(downloading);
return;
}
// 暂停
Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
string outputDanmaku = null;
// 如果需要下载弹幕
if (downloading.DownloadBase.NeedDownloadContent["downloadDanmaku"])
{
outputDanmaku = DownloadDanmaku(downloading);
}
// 暂停
Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
List<string> outputSubtitles = null;
// 如果需要下载字幕
if (downloading.DownloadBase.NeedDownloadContent["downloadSubtitle"])
{
outputSubtitles = DownloadSubtitle(downloading);
}
// 暂停
Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
string outputCover = null;
string outputPageCover = null;
// 如果需要下载封面
if (downloading.DownloadBase.NeedDownloadContent["downloadCover"])
{
string fileName = $"{downloading.DownloadBase.FilePath}.{GetImageExtension(downloading.DownloadBase.PageCoverUrl)}";
// page的封面
outputPageCover = DownloadCover(downloading, downloading.DownloadBase.PageCoverUrl, fileName);
// 封面
outputCover = DownloadCover(downloading, downloading.DownloadBase.CoverUrl, $"{path}/Cover.{GetImageExtension(downloading.DownloadBase.CoverUrl)}");
}
// 暂停
Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
// 混流
string outputMedia = string.Empty;
if (downloading.DownloadBase.NeedDownloadContent["downloadAudio"] || downloading.DownloadBase.NeedDownloadContent["downloadVideo"])
{
outputMedia = MixedFlow(downloading, audioUid, videoUid);
}
// 暂停
//Pause(downloading);
// 是否存在
isExist = IsExist(downloading);
if (!isExist.Result)
{
return;
}
// 检测音频、视频是否下载成功
bool isMediaSuccess = true;
if (downloading.DownloadBase.NeedDownloadContent["downloadAudio"] || downloading.DownloadBase.NeedDownloadContent["downloadVideo"])
{
// 只有下载音频不下载视频时才输出aac
// 只要下载视频就输出mp4
if (File.Exists(outputMedia))
{
// 成功
isMediaSuccess = true;
}
else
{
isMediaSuccess = false;
}
}
// 检测弹幕是否下载成功
bool isDanmakuSuccess = true;
if (downloading.DownloadBase.NeedDownloadContent["downloadDanmaku"])
{
if (File.Exists(outputDanmaku))
{
// 成功
isDanmakuSuccess = true;
}
else
{
isDanmakuSuccess = false;
}
}
// 检测字幕是否下载成功
bool isSubtitleSuccess = true;
if (downloading.DownloadBase.NeedDownloadContent["downloadSubtitle"])
{
if (outputSubtitles == null)
{
// 为null时表示不存在字幕
}
else
{
foreach (string subtitle in outputSubtitles)
{
if (!File.Exists(subtitle))
{
// 如果有一个不存在则失败
isSubtitleSuccess = false;
}
}
}
}
// 检测封面是否下载成功
bool isCover = true;
if (downloading.DownloadBase.NeedDownloadContent["downloadCover"])
{
if (File.Exists(outputCover) || File.Exists(outputPageCover))
{
// 成功
isCover = true;
}
else
{
isCover = false;
}
}
if (!isMediaSuccess || !isDanmakuSuccess || !isSubtitleSuccess || !isCover)
{
DownloadFailed(downloading);
return;
}
// 下载完成后处理
Downloaded downloaded = new Downloaded
{
MaxSpeedDisplay = Format.FormatSpeed(downloading.Downloading.MaxSpeed),
};
// 设置完成时间
downloaded.SetFinishedTimestamp(new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds());
DownloadedItem downloadedItem = new DownloadedItem
{
DownloadBase = downloading.DownloadBase,
Downloaded = downloaded
};
App.PropertyChangeAsync(new Action(() =>
{
// 加入到下载完成list中并从下载中list去除
downloadedList.Add(downloadedItem);
downloadingList.Remove(downloading);
// 下载完成列表排序
DownloadFinishedSort finishedSort = SettingsManager.GetInstance().GetDownloadFinishedSort();
App.SortDownloadedList(finishedSort);
}));
}));
}
/// <summary>
/// 下载失败后的处理
/// </summary>
/// <param name="downloading"></param>
private void DownloadFailed(DownloadingItem downloading)
{
downloading.DownloadStatusTitle = DictionaryResource.GetString("DownloadFailed");
downloading.DownloadContent = string.Empty;
downloading.DownloadingFileSize = string.Empty;
downloading.SpeedDisplay = string.Empty;
downloading.Downloading.DownloadStatus = DownloadStatus.DOWNLOAD_FAILED;
downloading.StartOrPause = ButtonIcon.Instance().Retry;
downloading.StartOrPause.Fill = DictionaryResource.GetColor("ColorPrimary");
}
/// <summary>
/// 获取图片的扩展名
/// </summary>
/// <param name="coverUrl"></param>
/// <returns></returns>
private string GetImageExtension(string coverUrl)
{
if (coverUrl == null)
{
return string.Empty;
}
// 图片的扩展名
string[] temp = coverUrl.Split('.');
string fileExtension = temp[temp.Length - 1];
return fileExtension;
}
/// <summary>
/// 强制暂停
/// </summary>
/// <param name="downloading"></param>
private void Pause(DownloadingItem downloading)
{
string oldStatus = downloading.DownloadStatusTitle;
downloading.DownloadStatusTitle = DictionaryResource.GetString("Pausing");
while (downloading.Downloading.DownloadStatus == DownloadStatus.PAUSE)
{
// 降低CPU占用
Thread.Sleep(100);
}
downloading.DownloadStatusTitle = DictionaryResource.GetString("Waiting");
int maxDownloading = SettingsManager.GetInstance().GetAriaMaxConcurrentDownloads();
int downloadingCount;
do
{
downloadingCount = 0;
foreach (DownloadingItem item in downloadingList)
{
if (item.Downloading.DownloadStatus == DownloadStatus.DOWNLOADING)
{
downloadingCount++;
}
}
// 降低CPU占用
Thread.Sleep(100);
} while (downloadingCount > maxDownloading);
downloading.DownloadStatusTitle = oldStatus;
}
/// <summary>
/// 是否存在于下载列表中
/// </summary>
/// <param name="downloading"></param>
/// <returns></returns>
private async Task<bool> IsExist(DownloadingItem downloading)
{
bool isExist = downloadingList.Contains(downloading);
if (isExist)
{
return true;
}
else
{
// 先恢复为waiting状态暂停状态下Remove会导致文件重新下载原因暂不清楚
await AriaClient.UnpauseAsync(downloading.Downloading.Gid);
// 移除下载项
var ariaRemove = await AriaClient.RemoveAsync(downloading.Downloading.Gid);
if (ariaRemove == null || ariaRemove.Result == downloading.Downloading.Gid)
{
// 从内存中删除下载项
await AriaClient.RemoveDownloadResultAsync(downloading.Downloading.Gid);
}
return false;
}
}
/// <summary>
/// 启动Aria服务器
/// </summary>
private async void StartAriaServer()
{
List<string> header = new List<string>
{
$"Cookie: {LoginHelper.GetLoginInfoCookiesString()}",
$"Origin: https://www.bilibili.com",
$"Referer: https://www.bilibili.com",
$"User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36"
};
AriaConfig config = new AriaConfig()
{
ListenPort = SettingsManager.GetInstance().GetAriaListenPort(),
Token = "downkyi",
LogLevel = SettingsManager.GetInstance().GetAriaLogLevel(),
MaxConcurrentDownloads = SettingsManager.GetInstance().GetAriaMaxConcurrentDownloads(),
MaxConnectionPerServer = 16, // 最大取16
Split = SettingsManager.GetInstance().GetAriaSplit(),
//MaxTries = 5,
MinSplitSize = 10, // 10MB
MaxOverallDownloadLimit = SettingsManager.GetInstance().GetAriaMaxOverallDownloadLimit() * 1024L, // 输入的单位是KB/s所以需要乘以1024
MaxDownloadLimit = SettingsManager.GetInstance().GetAriaMaxDownloadLimit() * 1024L, // 输入的单位是KB/s所以需要乘以1024
MaxOverallUploadLimit = 0,
MaxUploadLimit = 0,
ContinueDownload = true,
FileAllocation = SettingsManager.GetInstance().GetAriaFileAllocation(),
Headers = header
};
var task = await AriaServer.StartServerAsync(config);
if (task) { Console.WriteLine("Start ServerAsync Completed"); }
Console.WriteLine("Start ServerAsync end");
}
/// <summary>
/// 关闭Aria服务器
/// </summary>
private void CloseAriaServer()
{
new Thread(() =>
{
// 暂停所有下载
var ariaPause = AriaClient.PauseAllAsync();
Core.Utils.Debugging.Console.PrintLine(ariaPause.ToString());
// 关闭服务器
bool close = AriaServer.CloseServer();
Core.Utils.Debugging.Console.PrintLine(close);
})
{ IsBackground = false }
.Start();
}
/// <summary>
/// 采用Aria下载文件
/// </summary>
/// <param name="downloading"></param>
/// <returns></returns>
private DownloadResult DownloadByAria(DownloadingItem downloading, List<string> urls, string path, string localFileName)
{
// path已斜杠结尾去掉斜杠
path = path.TrimEnd('/').TrimEnd('\\');
AriaSendOption option = new AriaSendOption
{
//HttpProxy = $"http://{Settings.GetAriaHttpProxy()}:{Settings.GetAriaHttpProxyListenPort()}",
Dir = path,
Out = localFileName
//Header = $"cookie: {Login.GetLoginInfoCookiesString()}\nreferer: https://www.bilibili.com",
//UseHead = "true",
//UserAgent = Utils.GetUserAgent()
};
// 如果设置了代理则增加HttpProxy
if (SettingsManager.GetInstance().IsAriaHttpProxy() == AllowStatus.YES)
{
option.HttpProxy = $"http://{SettingsManager.GetInstance().GetAriaHttpProxy()}:{SettingsManager.GetInstance().GetAriaHttpProxyListenPort()}";
}
// 添加一个下载
Task<AriaAddUri> ariaAddUri = AriaClient.AddUriAsync(urls, option);
if (ariaAddUri == null || ariaAddUri.Result == null || ariaAddUri.Result.Result == null)
{
return DownloadResult.FAILED;
}
// 保存gid
string gid = ariaAddUri.Result.Result;
downloading.Downloading.Gid = gid;
// 管理下载
AriaManager ariaManager = new AriaManager();
ariaManager.TellStatus += AriaTellStatus;
ariaManager.DownloadFinish += AriaDownloadFinish;
return ariaManager.GetDownloadStatus(gid, new Action(() =>
{
switch (downloading.Downloading.DownloadStatus)
{
case DownloadStatus.PAUSE:
Task<AriaPause> ariaPause = AriaClient.PauseAsync(downloading.Downloading.Gid);
// 通知UI并阻塞当前线程
Pause(downloading);
break;
case DownloadStatus.DOWNLOADING:
Task<AriaPause> ariaUnpause = AriaClient.UnpauseAsync(downloading.Downloading.Gid);
break;
}
}));
}
private void AriaTellStatus(long totalLength, long completedLength, long speed, string gid)
{
// 当前的下载视频
DownloadingItem video = null;
try
{
video = downloadingList.FirstOrDefault(it => it.Downloading.Gid == gid);
}
catch (InvalidOperationException e)
{
Core.Utils.Debugging.Console.PrintLine("AriaTellStatus()发生异常: {0}", e);
LogManager.Error("AriaTellStatus()", e);
}
if (video == null) { return; }
float percent = 0;
if (totalLength != 0)
{
percent = (float)completedLength / totalLength * 100;
}
// 根据进度判断本次是否需要更新UI
if (Math.Abs(percent - video.Progress) < 0.01) { return; }
// 下载进度
video.Progress = percent;
// 下载大小
video.DownloadingFileSize = Format.FormatFileSize(completedLength) + "/" + Format.FormatFileSize(totalLength);
// 下载速度
video.SpeedDisplay = Format.FormatSpeed(speed);
// 最大下载速度
if (video.Downloading.MaxSpeed < speed)
{
video.Downloading.MaxSpeed = speed;
}
}
private void AriaDownloadFinish(bool isSuccess, string downloadPath, string gid, string msg)
{
//throw new NotImplementedException();
}
}
}