public async Task <bool> DeleteFromDBAsync(FreeDiscItemDownload freeDiscDownloader)
{
if (freeDiscDownloader == null)
{
#if DEBUG
Debug.Write("DeleteFromDBAsync: freeDiscDownloader == null");
#endif
return(false);
}
Debug.Write("DeleteFromDB: ID" + freeDiscDownloader.DBID + " Title: " + freeDiscDownloader?.Title + " Status: " + freeDiscDownloader?.ItemStatus.ToString());
if (freeDiscDownloader.DBID == 0)
{
Debug.Write("DeleteFromDB: freeDiscDownloader.DBID == 0 !");
return(false);
}
try
{
var conn = new SQLite.SQLiteAsyncConnection(App.AppSetting.DBDownloadPath);
await conn.CreateTableAsync <FreeDiscItemDownload>();
await conn.DeleteAsync(freeDiscDownloader);
}
catch (Exception e)
{
Debug.Write("DeleteFromDB: Delete error !");
return(false);
}
return(true);
}
public async Task <bool> SaveToDBAsync(FreeDiscItemDownload freeDiscDownloader)
{
if (freeDiscDownloader == null)
{
#if DEBUG
Debug.Write("SaveToDBAsync: freeDiscDownloader == null");
#endif
return(false);
}
Debug.Write("SaveToDB: ID" + freeDiscDownloader.DBID + " Title: " + freeDiscDownloader?.Title + " Status: " + freeDiscDownloader?.ItemStatus.ToString());
try
{
var conn = new SQLite.SQLiteAsyncConnection(App.AppSetting.DBDownloadPath);
await conn.CreateTableAsync <FreeDiscItemDownload>();
await conn.InsertAsync(freeDiscDownloader);
}
catch (Exception e)
{
Debug.Write("SaveToDB: Save error !");
return(false);
}
Debug.Write("SaveToDB: Result ID" + freeDiscDownloader?.DBID ?? "NULL");
return(true);
}
public bool SaveToDB(FreeDiscItemDownload freeDiscDownloader)
{
if (freeDiscDownloader == null)
{
return(false);
}
using (var conn = new SQLite.SQLiteConnection(App.AppSetting.DBDownloadPath))
{
conn.CreateTable <FreeDiscItemDownload>();
var rowsCount = conn.Insert(freeDiscDownloader);
if (rowsCount == 0)
{
return(false);
}
}
return(true);
}
// add new item from search model
public async Task AddNewItemToDownloadAsync(FreeDiscItem itemToAdd)
{
Debug.WriteLine("AddNewItemToDownload()");
if (itemToAdd == null)
{
Debug.WriteLine("AddNewItemToDownload: itemToAdd = null");
return;
}
if (IsFreeDiscItemDownloadOnQueue(itemToAdd))
{
Debug.WriteLine( "Element już istnieje na liście do pobrania" + itemToAdd.Title );
return;
}
var downloaditem = new FreeDiscItemDownload(itemToAdd)
{
RowEven = (DownloadItemList?.Count ?? 0) > 0 ? !DownloadItemList[0]?.RowEven ?? true : true
};
DownloadItemList.Insert(0, downloaditem);
await _freeDiscItemDownloadRepository.SaveToDBAsync(downloaditem);
await DownloadQueueProcessAsync();
}
public async void DownloadItem(FreeDiscItemDownload freeDiscDownloader)
{
if (CurrentDownloadFile != null)
{
if (IsDownloadInProgress())
{
Debug.WriteLine("DownloadItem: CurrentDownloadFile is active!");
return;
}
}
if (freeDiscDownloader == null)
{
Debug.WriteLine("DownloadItem: freeDiscDownloader == null");
return;
}
if (freeDiscDownloader.Url.Length < 6)
{
Debug.WriteLine("DownloadItem: freeDiscDownloader.Url.Length < 6");
return;
}
await Task.Yield();
await Task.Run(async() =>
{
Debug.WriteLine("DownloadItem: Downloading file: " + freeDiscDownloader.Url);
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInProgress;
var downloadManager = CrossDownloadManager.Current;
downloadManager.PathNameForDownloadedFile = new System.Func <IDownloadFile, string>(file => { return(freeDiscDownloader.FilePath); });
CurrentDownloadFile = downloadManager.CreateDownloadFile(freeDiscDownloader.Url);
CurrentDownloadFile.Headers.Add("Host", @"stream.freedisc.pl");
CurrentDownloadFile.Headers.Add("Accept", @"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
CurrentDownloadFile.Headers.Add("Accept-Language", @"pl,en-US;q=0.7,en;q=0.3");
CurrentDownloadFile.Headers.Add("Accept-Encoding", @"");
CurrentDownloadFile.Headers.Add("Connection", @"keep-alive");
CurrentDownloadFile.Headers.Add("Pragma", @"no-cache");
CurrentDownloadFile.Headers.Add("DNT", @"1");
CurrentDownloadFile.Headers.Add("Cache-Control", @"no-cache");
CurrentDownloadFile.Headers.Add("Referer", @"http://reseton.pl/static/player/v612/jwplayer.flash.swf");
CurrentDownloadFile.Headers.Add("User-Agent", @"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0");
downloadManager.Start(CurrentDownloadFile, true);
var isDownloading = true;
while (isDownloading)
{
isDownloading = IsDownloadInProgress();
if (isDownloading)
{
if (CurrentDownloadFile.TotalBytesExpected > 0)
{
freeDiscDownloader.DownloadProgres = CurrentDownloadFile.TotalBytesWritten / CurrentDownloadFile.TotalBytesExpected;
}
}
await Task.Delay(500);
}
});
switch (CurrentDownloadFile.Status)
{
case DownloadFileStatus.COMPLETED:
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadFinish;
break;
case DownloadFileStatus.CANCELED:
freeDiscDownloader.ItemStatus = DownloadStatus.WaitingForDownload;
break;
default:
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInterrupted;
break;
}
}
public bool UpdateDB(FreeDiscItemDownload freeDiscDownloader)
{
return(false);
}
public bool DeleteFromDB(FreeDiscItemDownload freeDiscDownloader)
{
return(false);
}
public async Task <bool> DownloadItemAsync(FreeDiscItemDownload freeDiscDownloader)
{
CurrentfreeDiscDownloader = freeDiscDownloader;
// checking permission
bool havePermisson = false;
try
{
var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage);
if (status != PermissionStatus.Granted)
{
var results = await CrossPermissions.Current.RequestPermissionsAsync(Permission.Storage);
if (results.ContainsKey(Permission.Storage))
{
status = results[Permission.Storage];
}
}
if (status == PermissionStatus.Granted)
{
havePermisson = true;
}
}
catch (Exception ex)
{
Debug.Write("DownloadItemAsync: Exception: " + ex.ToString());
}
if (!havePermisson)
{
await Application.Current.MainPage.DisplayAlert(freeDiscDownloader?.Title,
"Nie można pobrać pliku. Aplikacja nie posiada uprawnień do zapisu plików na urządzeniu", "OK");
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInterrupted;
freeDiscDownloader.DownloadProgres = 0;
await UpdateDBAsync(freeDiscDownloader);
return(false);
}
//checking input data
if (IsDownloadInProgress())
{
Debug.Write("DownloadItemAsync: IsDownloadInProgress()");
return(false);
}
if (freeDiscDownloader.Url.Length < 5)
{
Debug.Write("DownloadItemAsync: freeDiscDownloader.Url.Length < 5");
return(false);
}
if (freeDiscDownloader.FilePath.Length == 0)
{
Debug.Write("DownloadItemAsync: freeDiscDownloader.FilePath.Length == 0");
return(false);
}
if (!Directory.Exists(freeDiscDownloader.FileDirectory))
{
Debug.Write("DownloadItemAsync: !Directory.Exists(freeDiscDownloader.FileDirectory: " + freeDiscDownloader.FileDirectory);
try
{
Directory.CreateDirectory(freeDiscDownloader.FileDirectory);
}
catch (Exception e)
{
Debug.Write("DownloadItemAsync: CreateDirectory error: " + e.ToString());
return(false);
}
}
if (File.Exists(freeDiscDownloader.FilePath))
{
Debug.Write("DownloadItemAsync: File.Exists(freeDiscDownloader.FilePath)");
try
{
File.Delete(freeDiscDownloader.FilePath);
}
catch (Exception e)
{
Debug.Write("DownloadItemAsync: File.Delete error: " + e.ToString());
return(false);
}
}
// begin download
Debug.Write("DownloadItemAsync: begin download");
freeDiscDownloader.DownloadProgres = 0;
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInProgress;
await UpdateDBAsync(freeDiscDownloader);
CurrentFileDownload = new FileDownload(freeDiscDownloader.Url, freeDiscDownloader.FilePath, 64 * 1024);
CurrentFileDownload.DownloadProgressChanged += (e, a) =>
{
var inst = e as FileDownload;
if (inst.ContentLength > 0)
{
freeDiscDownloader.DownloadProgres = (double)inst.BytesWritten / inst.ContentLength;
}
};
CurrentFileDownload.DownloadCompleted += (e, a) =>
{
freeDiscDownloader.DownloadProgres = 1;
};
await CurrentFileDownload.Start();
Debug.Write("DownloadItemAsync: ContentLength:" + CurrentFileDownload.ContentLength);
if (CurrentFileDownload.Done)
{
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadFinish;
freeDiscDownloader.DownloadProgres = 1;
await UpdateDBAsync(freeDiscDownloader);
Debug.Write("DownloadItemAsync: CurrentFileDownload.Done");
return(true);
}
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInterrupted;
freeDiscDownloader.DownloadProgres = 0;
await UpdateDBAsync(freeDiscDownloader);
Debug.Write("DownloadItemAsync: DownloadStatus.DownloadInterrupted;");
return(false);
}
public async Task <bool> DownloadItemAsync(FreeDiscItemDownload freeDiscDownloader)
{
if (freeDiscDownloader == null)
{
#if DEBUG
Debug.Write("DownloadItemAsync: freeDiscDownloader == null");
#endif
return(false);
}
CurrentfreeDiscDownloader = freeDiscDownloader;
// checking permission
bool havePermisson = false;
try
{
var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage);
if (status != PermissionStatus.Granted)
{
var results = await CrossPermissions.Current.RequestPermissionsAsync(Permission.Storage);
if (results.ContainsKey(Permission.Storage))
{
status = results[Permission.Storage];
}
}
if (status == PermissionStatus.Granted)
{
havePermisson = true;
}
}
catch (Exception ex)
{
#if DEBUG
Debug.Write("DownloadItemAsync: Exception: " + ex.ToString());
#endif
}
if (!havePermisson)
{
await Application.Current.MainPage.DisplayAlert(freeDiscDownloader?.Title,
"Nie można pobrać pliku. Aplikacja nie posiada uprawnień do zapisu plików na urządzeniu", "OK");
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInterrupted;
freeDiscDownloader.DownloadProgres = 0;
await UpdateDBAsync(freeDiscDownloader);
return(false);
}
//checking input data
if (IsDownloadInProgress())
{
#if DEBUG
Debug.Write("DownloadItemAsync: IsDownloadInProgress()");
#endif
return(false);
}
if (!Uri.IsWellFormedUriString(freeDiscDownloader.Url, UriKind.Absolute))
{
#if DEBUG
Debug.Write("DownloadItemAsync: URI is incorrect");
#endif
return(false);
}
if (!ExtensionMethods.IsValidPath(freeDiscDownloader.FilePath, true))
{
#if DEBUG
Debug.Write("DownloadItemAsync: freeDiscDownloader.FilePath is incorrect");
#endif
return(false);
}
if (!Directory.Exists(freeDiscDownloader.FileDirectory))
{
#if DEBUG
Debug.Write("DownloadItemAsync: !Directory.Exists(freeDiscDownloader.FileDirectory: " + freeDiscDownloader.FileDirectory);
#endif
try
{
Directory.CreateDirectory(freeDiscDownloader.FileDirectory);
}
catch (Exception e)
{
#if DEBUG
Debug.Write("DownloadItemAsync: CreateDirectory error: " + e.ToString());
#endif
return(false);
}
}
if (File.Exists(freeDiscDownloader.FilePath))
{
Debug.Write("DownloadItemAsync: File.Exists(freeDiscDownloader.FilePath)");
try
{
File.Delete(freeDiscDownloader.FilePath);
}
catch (Exception e)
{
Debug.Write("DownloadItemAsync: File.Delete error: " + e.ToString());
return(false);
}
}
// begin download
#if DEBUG
Debug.Write("DownloadItemAsync: begin download");
#endif
freeDiscDownloader.DownloadProgres = 0;
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInProgress;
await UpdateDBAsync(freeDiscDownloader);
CurrentCancellationToken = new CancellationTokenSource();
bool result = false;
using (var client = new HttpClientDownloadWithProgress(freeDiscDownloader.Url, freeDiscDownloader.FilePath, CurrentCancellationToken))
{
client.ProgressChanged += (totalFileSize, totalBytesDownloaded, progressPercentage) => {
freeDiscDownloader.DownloadProgres = (double)(progressPercentage / 100);
};
await client.StartDownload();
result = client.Done;
}
if (result)
{
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadFinish;
freeDiscDownloader.DownloadProgres = 1;
Debug.Write("DownloadItemAsync: Co jest do kurwy: " + freeDiscDownloader.ItemStatus.ToString());
await UpdateDBAsync(freeDiscDownloader);
#if DEBUG
Debug.Write("DownloadItemAsync: DownloadFinish");
#endif
return(true);
}
freeDiscDownloader.ItemStatus = DownloadStatus.DownloadInterrupted;
freeDiscDownloader.DownloadProgres = 0;
await UpdateDBAsync(freeDiscDownloader);
#if DEBUG
Debug.Write("DownloadItemAsync: DownloadInterrupted");
#endif
return(false);
}
