/// <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>
/// 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('\\');
//检查gid对应任务，如果已创建那么直接使用
//但是代理设置会出现不能随时更新的问题
if (downloading.Downloading.Gid != null)
{
Task <AriaTellStatus> status = AriaClient.TellStatus(downloading.Downloading.Gid);
if (status == null || status.Result == null)
{
downloading.Downloading.Gid = null;
}
else if (status.Result.Result == null && status.Result.Error != null)
{
if (status.Result.Error.Message.Contains("is not found"))
{
downloading.Downloading.Gid = null;
}
}
}
if (downloading.Downloading.Gid == null)
{
AriaSendOption option = new AriaSendOption
{
//HttpProxy = $"http://{Settings.GetAriaHttpProxy()}:{Settings.GetAriaHttpProxyListenPort()}",
Dir = path,
Out = localFileName,
//Header = $"cookie: {LoginHelper.GetLoginInfoCookiesString()}\nreferer: https://www.bilibili.com",
//UseHead = "true",
UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36",
};
// 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;
}
else
{
Task <AriaPause> ariaUnpause = AriaClient.UnpauseAsync(downloading.Downloading.Gid);
}
// 管理下载
AriaManager ariaManager = new AriaManager();
ariaManager.TellStatus += AriaTellStatus;
ariaManager.DownloadFinish += AriaDownloadFinish;
return(ariaManager.GetDownloadStatus(downloading.Downloading.Gid, new Action(() =>
{
cancellationToken.ThrowIfCancellationRequested();
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:
break;
}
})));
}
