/// <summary>
/// Updates the progress messages and the progressbar.
/// </summary>
/// <param name="fileUrl">The URL of the file that just progressed.</param>
/// <param name="bytesReceived">The received bytes for the specified file.</param>
private void UpdateProgress(String fileUrl, long bytesReceived)
{
DateTime now = DateTime.Now;
lock (this.filesDownload) {
// Compute new progress values
TrackFile currentFile = this.filesDownload.Where(f => f.Url == fileUrl).First();
currentFile.BytesReceived = bytesReceived;
long totalReceivedBytes = this.filesDownload.Sum(f => f.BytesReceived);
long bytesToDownload = this.filesDownload.Sum(f => f.Size);
Double bytesPerSecond;
if (this.lastTotalReceivedBytes == 0)
{
// First time we update the progress
bytesPerSecond = 0;
this.lastTotalReceivedBytes = totalReceivedBytes;
this.lastDownloadSpeedUpdate = now;
}
else if ((now - this.lastDownloadSpeedUpdate).TotalMilliseconds > 500)
{
// Last update of progress happened more than 500 milliseconds ago
// We only update the download speed every 500+ milliseconds
bytesPerSecond =
((Double)(totalReceivedBytes - this.lastTotalReceivedBytes)) /
(now - this.lastDownloadSpeedUpdate).TotalSeconds;
this.lastTotalReceivedBytes = totalReceivedBytes;
this.lastDownloadSpeedUpdate = now;
// Update UI
this.Dispatcher.Invoke(new Action(() => {
// Update download speed
labelDownloadSpeed.Content = (bytesPerSecond / 1024).ToString("0.0") + " kB/s";
}));
}
// Update UI
this.Dispatcher.Invoke(new Action(() => {
if (!this.userCancelled)
{
// Update progress label
labelProgress.Content =
((Double)totalReceivedBytes / (1024 * 1024)).ToString("0.00") + " MB / " +
((Double)bytesToDownload / (1024 * 1024)).ToString("0.00") + " MB";
// Update progress bar
progressBar.Value = totalReceivedBytes;
// Taskbar progress is between 0 and 1
TaskbarItemInfo.ProgressValue = totalReceivedBytes / progressBar.Maximum;
}
}));
}
}
/// <summary>
/// Downloads and returns the cover art of the specified album. Depending on UserSettings, save the cover art in
/// the album folder.
/// </summary>
/// <param name="album">The album.</param>
private async Task <TagLib.Picture> DownloadCoverArtAsync(Album album)
{
TagLib.Picture artworkInTags = null;
int tries = 0;
bool artworkDownloaded = false;
TrackFile currentFile = DownloadingFiles.Where(f => f.Url == album.ArtworkUrl).First();
do
{
if (_cancelDownloads)
{
// Abort
return(null);
}
using (var webClient = new WebClient()) {
ProxyHelper.SetProxy(webClient);
// Update progress bar when downloading
webClient.DownloadProgressChanged += (s, e) => {
currentFile.BytesReceived = e.BytesReceived;
};
// Register current download
_cancellationTokenSource.Token.Register(webClient.CancelAsync);
// Start download
try {
await webClient.DownloadFileTaskAsync(album.ArtworkUrl, album.ArtworkTempPath);
artworkDownloaded = true;
} catch (WebException ex) when(ex.Status == WebExceptionStatus.RequestCanceled)
{
// Downloads cancelled by the user
return(null);
} catch (TaskCanceledException) {
// Downloads cancelled by the user
return(null);
} catch (WebException) {
// Connection closed probably because no response from Bandcamp
if (tries < App.UserSettings.DownloadMaxTries)
{
LogAdded(this, new LogArgs($"Unable to download artwork for album \"{album.Title}\". Try {tries + 1} of {App.UserSettings.DownloadMaxTries}", LogType.Warning));
}
else
{
LogAdded(this, new LogArgs($"Unable to download artwork for album \"{album.Title}\". Hit max retries of {App.UserSettings.DownloadMaxTries}", LogType.Error));
}
}
if (artworkDownloaded)
{
// Convert/resize artwork to be saved in album folder
if (App.UserSettings.SaveCoverArtInFolder && (App.UserSettings.CoverArtInFolderConvertToJpg || App.UserSettings.CoverArtInFolderResize))
{
var settings = new ResizeSettings();
if (App.UserSettings.CoverArtInFolderConvertToJpg)
{
settings.Format = "jpg";
settings.Quality = 90;
}
if (App.UserSettings.CoverArtInFolderResize)
{
settings.MaxHeight = App.UserSettings.CoverArtInFolderMaxSize;
settings.MaxWidth = App.UserSettings.CoverArtInFolderMaxSize;
}
await Task.Run(() => {
ImageBuilder.Current.Build(album.ArtworkTempPath, album.ArtworkPath, settings); // Save it to the album folder
});
}
else if (App.UserSettings.SaveCoverArtInFolder)
{
await FileHelper.CopyFileAsync(album.ArtworkTempPath, album.ArtworkPath);
}
// Convert/resize artwork to be saved in tags
if (App.UserSettings.SaveCoverArtInTags && (App.UserSettings.CoverArtInTagsConvertToJpg || App.UserSettings.CoverArtInTagsResize))
{
var settings = new ResizeSettings();
if (App.UserSettings.CoverArtInTagsConvertToJpg)
{
settings.Format = "jpg";
settings.Quality = 90;
}
if (App.UserSettings.CoverArtInTagsResize)
{
settings.MaxHeight = App.UserSettings.CoverArtInTagsMaxSize;
settings.MaxWidth = App.UserSettings.CoverArtInTagsMaxSize;
}
await Task.Run(() => {
ImageBuilder.Current.Build(album.ArtworkTempPath, album.ArtworkTempPath, settings); // Save it to %Temp%
});
}
artworkInTags = new TagLib.Picture(album.ArtworkTempPath)
{
Description = "Picture"
};
try {
File.Delete(album.ArtworkTempPath);
} catch {
// Could not delete the file. Nevermind, it's in %Temp% folder...
}
// Note the file as downloaded
currentFile.Downloaded = true;
LogAdded(this, new LogArgs($"Downloaded artwork for album \"{album.Title}\"", LogType.IntermediateSuccess));
}
tries++;
if (!artworkDownloaded && tries < App.UserSettings.DownloadMaxTries)
{
await WaitForCooldownAsync(tries);
}
}
} while (!artworkDownloaded && tries < App.UserSettings.DownloadMaxTries);
return(artworkInTags);
}
/// <summary>
/// Downloads and tags a track. Returns true if the track has been correctly downloaded; false otherwise.
/// </summary>
/// <param name="album">The album of the track to download.</param>
/// <param name="track">The track to download.</param>
/// <param name="artwork">The cover art.</param>
private async Task <bool> DownloadAndTagTrackAsync(Album album, Track track, TagLib.Picture artwork)
{
LogAdded(this, new LogArgs($"Downloading track \"{track.Title}\" from url: {track.Mp3Url}", LogType.VerboseInfo));
int tries = 0;
bool trackDownloaded = false;
TrackFile currentFile = DownloadingFiles.Where(f => f.Url == track.Mp3Url).First();
if (File.Exists(track.Path))
{
long length = new FileInfo(track.Path).Length;
if (currentFile.Size > length - (currentFile.Size * App.UserSettings.AllowedFileSizeDifference) &&
currentFile.Size < length + (currentFile.Size * App.UserSettings.AllowedFileSizeDifference))
{
LogAdded(this, new LogArgs($"Track already exists within allowed file size range: track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\" - Skipping download!", LogType.IntermediateSuccess));
return(false);
}
}
do
{
if (_cancelDownloads)
{
// Abort
return(false);
}
using (var webClient = new WebClient()) {
ProxyHelper.SetProxy(webClient);
// Update progress bar when downloading
webClient.DownloadProgressChanged += (s, e) => {
currentFile.BytesReceived = e.BytesReceived;
};
// Register current download
_cancellationTokenSource.Token.Register(webClient.CancelAsync);
// Start download
try {
await webClient.DownloadFileTaskAsync(track.Mp3Url, track.Path);
trackDownloaded = true;
LogAdded(this, new LogArgs($"Downloaded track \"{track.Title}\" from url: {track.Mp3Url}", LogType.VerboseInfo));
} catch (WebException ex) when(ex.Status == WebExceptionStatus.RequestCanceled)
{
// Downloads cancelled by the user
return(false);
} catch (TaskCanceledException) {
// Downloads cancelled by the user
return(false);
} catch (WebException) {
// Connection closed probably because no response from Bandcamp
if (tries + 1 < App.UserSettings.DownloadMaxTries)
{
LogAdded(this, new LogArgs($"Unable to download track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\". Try {tries + 1} of {App.UserSettings.DownloadMaxTries}", LogType.Warning));
}
else
{
LogAdded(this, new LogArgs($"Unable to download track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\". Hit max retries of {App.UserSettings.DownloadMaxTries}", LogType.Error));
}
}
if (trackDownloaded)
{
if (App.UserSettings.ModifyTags)
{
// Tag (ID3) the file when downloaded
var tagFile = TagLib.File.Create(track.Path);
tagFile = TagHelper.UpdateArtist(tagFile, album.Artist, App.UserSettings.TagArtist);
tagFile = TagHelper.UpdateAlbumArtist(tagFile, album.Artist, App.UserSettings.TagAlbumArtist);
tagFile = TagHelper.UpdateAlbumTitle(tagFile, album.Title, App.UserSettings.TagAlbumTitle);
tagFile = TagHelper.UpdateAlbumYear(tagFile, (uint)album.ReleaseDate.Year, App.UserSettings.TagYear);
tagFile = TagHelper.UpdateTrackNumber(tagFile, (uint)track.Number, App.UserSettings.TagTrackNumber);
tagFile = TagHelper.UpdateTrackTitle(tagFile, track.Title, App.UserSettings.TagTrackTitle);
tagFile = TagHelper.UpdateTrackLyrics(tagFile, track.Lyrics, App.UserSettings.TagLyrics);
tagFile = TagHelper.UpdateComments(tagFile, App.UserSettings.TagComments);
tagFile.Save();
LogAdded(this, new LogArgs($"Tags saved for track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\"", LogType.VerboseInfo));
}
if (App.UserSettings.SaveCoverArtInTags && artwork != null)
{
// Save cover in tags when downloaded
var tagFile = TagLib.File.Create(track.Path);
tagFile.Tag.Pictures = new TagLib.IPicture[1] {
artwork
};
tagFile.Save();
LogAdded(this, new LogArgs($"Cover art saved in tags for track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\"", LogType.VerboseInfo));
}
// Note the file as downloaded
currentFile.Downloaded = true;
LogAdded(this, new LogArgs($"Downloaded track \"{Path.GetFileName(track.Path)}\" from album \"{album.Title}\"", LogType.IntermediateSuccess));
}
tries++;
if (!trackDownloaded && tries < App.UserSettings.DownloadMaxTries)
{
await WaitForCooldownAsync(tries);
}
}
} while (!trackDownloaded && tries < App.UserSettings.DownloadMaxTries);
return(trackDownloaded);
}
/// <summary>
/// Downloads the cover art.
/// </summary>
/// <param name="album">The album to download.</param>
/// <param name="downloadsFolder">The downloads folder.</param>
/// <param name="saveCovertArtInFolder">True to save cover art in the downloads folder; false otherwise.</param>
/// <param name="convertCoverArtToJpg">True to convert the cover art to jpg; false otherwise.</param>
/// <param name="resizeCoverArt">True to resize the covert art; false otherwise.</param>
/// <param name="coverArtMaxSize">The maximum width/height of the cover art when resizing.</param>
/// <returns></returns>
private TagLib.Picture DownloadCoverArt(Album album, String downloadsFolder, Boolean saveCovertArtInFolder, Boolean convertCoverArtToJpg, Boolean resizeCoverArt, int coverArtMaxSize)
{
// Compute path where to save artwork
String artworkPath = (saveCovertArtInFolder ? downloadsFolder : Path.GetTempPath()) + "\\" + album.Title.ToAllowedFileName() + Path.GetExtension(album.ArtworkUrl);
if (artworkPath.Length > 256)
{
// Shorten the path (Windows doesn't support a path > 256 characters)
artworkPath = (saveCovertArtInFolder ? downloadsFolder : Path.GetTempPath()) + "\\" + album.Title.ToAllowedFileName().Substring(0, 3) + Path.GetExtension(album.ArtworkUrl);
}
TagLib.Picture artwork = null;
int tries = 0;
Boolean artworkDownloaded = false;
do
{
var doneEvent = new AutoResetEvent(false);
using (var webClient = new WebClient()) {
if (webClient.Proxy != null)
{
webClient.Proxy.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
}
// Update progress bar when downloading
webClient.DownloadProgressChanged += (s, e) => {
UpdateProgress(album.ArtworkUrl, e.BytesReceived);
};
// Warn when downloaded
webClient.DownloadFileCompleted += (s, e) => {
if (!e.Cancelled && e.Error == null)
{
artworkDownloaded = true;
// Convert/resize artwork
if (userSettings.ConvertCoverArtToJpg || userSettings.ResizeCoverArt)
{
var settings = new ResizeSettings();
if (convertCoverArtToJpg)
{
settings.Format = "jpg";
settings.Quality = 90;
}
if (resizeCoverArt)
{
settings.MaxHeight = userSettings.CoverArtMaxSize;
settings.MaxWidth = userSettings.CoverArtMaxSize;
}
ImageBuilder.Current.Build(artworkPath, artworkPath, settings);
}
artwork = new TagLib.Picture(artworkPath)
{
Description = "Picture"
};
// Delete the cover art file if it was saved in Temp
if (!saveCovertArtInFolder)
{
try {
System.IO.File.Delete(artworkPath);
} catch {
// Could not delete the file. Nevermind, it's in Temp/ folder...
}
}
// Note the file as downloaded
TrackFile currentFile = this.filesDownload.Where(f => f.Url == album.ArtworkUrl).First();
currentFile.Downloaded = true;
Log($"Downloaded artwork for album \"{album.Title}\"", LogType.IntermediateSuccess);
}
else if (!e.Cancelled && e.Error != null)
{
if (tries < userSettings.DownloadMaxTries)
{
Log($"Unable to download artwork for album \"{album.Title}\". Try {tries} of {userSettings.DownloadMaxTries}", LogType.Warning);
}
else
{
Log($"Unable to download artwork for album \"{album.Title}\". Hit max retries of {userSettings.DownloadMaxTries}", LogType.Error);
}
} // Else the download has been cancelled (by the user)
doneEvent.Set();
};
lock (this.pendingDownloads) {
if (this.userCancelled)
{
// Abort
return(null);
}
// Register current download
this.pendingDownloads.Add(webClient);
// Start download
webClient.DownloadFileAsync(new Uri(album.ArtworkUrl), artworkPath);
}
// Wait for download to be finished
doneEvent.WaitOne();
lock (this.pendingDownloads) {
this.pendingDownloads.Remove(webClient);
}
}
} while (!artworkDownloaded && tries < userSettings.DownloadMaxTries);
return(artwork);
}
/// <summary>
/// Downloads and tags a track. Returns true if the track has been correctly downloaded; false otherwise.
/// </summary>
/// <param name="albumDirectoryPath">The path where to save the tracks.</param>
/// <param name="album">The album of the track to download.</param>
/// <param name="track">The track to download.</param>
/// <param name="tagTrack">True to tag the track; false otherwise.</param>
/// <param name="saveCoverArtInTags">True to save the cover art in the tag tracks; false otherwise.</param>
/// <param name="artwork">The cover art.</param>
private Boolean DownloadAndTagTrack(String albumDirectoryPath, Album album, Track track, Boolean tagTrack, Boolean saveCoverArtInTags, TagLib.Picture artwork)
{
Log($"Downloading track \"{track.Title}\" from url: {track.Mp3Url}", LogType.VerboseInfo);
// Set location to save the file
String trackPath = albumDirectoryPath + "\\" + GetFileName(album, track);
if (trackPath.Length > 256)
{
// Shorten the path (Windows doesn't support a path > 256 characters)
trackPath = albumDirectoryPath + "\\" + GetFileName(album, track).Substring(0, 3) + Path.GetExtension(trackPath);
}
int tries = 0;
Boolean trackDownloaded = false;
if (File.Exists(trackPath))
{
long length = new FileInfo(trackPath).Length;
foreach (TrackFile trackFile in filesDownload)
{
if (track.Mp3Url == trackFile.Url &&
trackFile.Size > length - (trackFile.Size * userSettings.AllowableFileSizeDifference) &&
trackFile.Size < length + (trackFile.Size * userSettings.AllowableFileSizeDifference))
{
Log($"Track already exists within allowed filesize range: track \"{GetFileName(album, track)}\" from album \"{album.Title}\" - Skipping download!", LogType.IntermediateSuccess);
return(false);
}
}
}
do
{
var doneEvent = new AutoResetEvent(false);
using (var webClient = new WebClient()) {
if (webClient.Proxy != null)
{
webClient.Proxy.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
}
// Update progress bar when downloading
webClient.DownloadProgressChanged += (s, e) => {
UpdateProgress(track.Mp3Url, e.BytesReceived);
};
// Warn & tag when downloaded
webClient.DownloadFileCompleted += (s, e) => {
WaitForCooldown(tries);
tries++;
if (!e.Cancelled && e.Error == null)
{
trackDownloaded = true;
if (tagTrack)
{
// Tag (ID3) the file when downloaded
TagLib.File tagFile = TagLib.File.Create(trackPath);
tagFile.Tag.Album = album.Title;
tagFile.Tag.AlbumArtists = new String[1] {
album.Artist
};
tagFile.Tag.Performers = new String[1] {
album.Artist
};
tagFile.Tag.Title = track.Title;
tagFile.Tag.Track = (uint)track.Number;
tagFile.Tag.Year = (uint)album.ReleaseDate.Year;
tagFile.Tag.Lyrics = track.Lyrics;
tagFile.Save();
}
if (saveCoverArtInTags && artwork != null)
{
// Save cover in tags when downloaded
TagLib.File tagFile = TagLib.File.Create(trackPath);
tagFile.Tag.Pictures = new TagLib.IPicture[1] {
artwork
};
tagFile.Save();
}
// Note the file as downloaded
TrackFile currentFile = this.filesDownload.Where(f => f.Url == track.Mp3Url).First();
currentFile.Downloaded = true;
Log($"Downloaded track \"{GetFileName(album, track)}\" from album \"{album.Title}\"", LogType.IntermediateSuccess);
}
else if (!e.Cancelled && e.Error != null)
{
if (tries < userSettings.DownloadMaxTries)
{
Log($"Unable to download track \"{GetFileName(album, track)}\" from album \"{album.Title}\". Try {tries} of {userSettings.DownloadMaxTries}", LogType.Warning);
}
else
{
Log($"Unable to download track \"{GetFileName(album, track)}\" from album \"{album.Title}\". Hit max retries of {userSettings.DownloadMaxTries}", LogType.Error);
}
} // Else the download has been cancelled (by the user)
doneEvent.Set();
};
lock (this.pendingDownloads) {
if (this.userCancelled)
{
// Abort
return(false);
}
// Register current download
this.pendingDownloads.Add(webClient);
// Start download
webClient.DownloadFileAsync(new Uri(track.Mp3Url), trackPath);
}
// Wait for download to be finished
doneEvent.WaitOne();
lock (this.pendingDownloads) {
this.pendingDownloads.Remove(webClient);
}
}
} while (!trackDownloaded && tries < userSettings.DownloadMaxTries);
return(trackDownloaded);
}
