/// <summary>
/// Returns the albums located at the specified URLs.
/// </summary>
/// <param name="urls">The URLs.</param>
private async Task <List <Album> > GetAlbumsAsync(List <string> urls)
{
var albums = new List <Album>();
foreach (string url in urls)
{
LogAdded(this, new LogArgs($"Retrieving album data for {url}", LogType.Info));
// Retrieve URL HTML source code
string htmlCode = "";
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
if (_cancelDownloads)
{
// Abort
return(new List <Album>());
}
try {
htmlCode = await webClient.DownloadStringTaskAsync(url);
} catch {
LogAdded(this, new LogArgs($"Could not retrieve data for {url}", LogType.Error));
continue;
}
}
// Get info on album
try {
Album album = BandcampHelper.GetAlbum(htmlCode);
if (album.Tracks.Count > 0)
{
albums.Add(album);
}
else
{
LogAdded(this, new LogArgs($"No tracks found for {url}, album will not be downloaded", LogType.Warning));
}
} catch {
LogAdded(this, new LogArgs($"Could not retrieve album info for {url}", LogType.Error));
continue;
}
}
return(albums);
}
/// <summary>
/// Downloads the changelog file and returns its content.
/// </summary>
private async Task <string> DownloadChangelogAsync()
{
string changelog;
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
changelog = await webClient.DownloadStringTaskAsync(Constants.UrlChangelog);
}
return(changelog);
}
private async void ButtonDownloadUpdate_Click(object sender, RoutedEventArgs e)
{
string[] parts = Constants.UrlReleaseZip.Split(new char[] { '/' });
string defaultFileName = parts[parts.Length - 1];
var dialog = new SaveFileDialog {
FileName = defaultFileName,
Filter = "Archive|*.zip",
Title = Properties.Resources.saveFileDialogTitle,
};
if (dialog.ShowDialog() != System.Windows.Forms.DialogResult.OK)
{
return;
}
string path = dialog.FileName;
string zipUrl = string.Format(Constants.UrlReleaseZip, _latestVersion.ToString());
using (var webClient = new WebClient()) {
ProxyHelper.SetProxy(webClient);
await webClient.DownloadFileTaskAsync(zipUrl, path);
}
}
/// <summary>
/// Returns the artists discography from any URL (artist, album, track).
/// </summary>
/// <param name="urls">The URLs.</param>
private async Task <List <string> > GetArtistDiscographyAsync(List <string> urls)
{
var albumsUrls = new List <string>();
foreach (string url in urls)
{
LogAdded(this, new LogArgs($"Retrieving artist discography from {url}", LogType.Info));
// Retrieve URL HTML source code
string htmlCode = "";
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
if (_cancelDownloads)
{
// Abort
return(new List <string>());
}
try {
htmlCode = await webClient.DownloadStringTaskAsync(url);
} catch {
LogAdded(this, new LogArgs($"Could not retrieve data for {url}", LogType.Error));
continue;
}
}
// Get artist "music" bandcamp page (http://artist.bandcamp.com/music)
var regex = new Regex("band_url = \"(?<url>.*)\"");
if (!regex.IsMatch(htmlCode))
{
LogAdded(this, new LogArgs($"No discography could be found on {url}. Try to uncheck the \"Download artist discography\" option", LogType.Error));
continue;
}
string artistMusicPage = regex.Match(htmlCode).Groups["url"].Value + "/music";
// Retrieve artist "music" page HTML source code
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
if (_cancelDownloads)
{
// Abort
return(new List <string>());
}
try {
htmlCode = await webClient.DownloadStringTaskAsync(artistMusicPage);
} catch {
LogAdded(this, new LogArgs($"Could not retrieve data for {artistMusicPage}", LogType.Error));
continue;
}
}
// Get albums referred on the page
regex = new Regex("TralbumData.*\n.*url:.*'/music'\n");
if (!regex.IsMatch(htmlCode))
{
// This seem to be a one-album artist with no "music" page => URL redirects to the unique album URL
albumsUrls.Add(url);
}
else
{
// We are on a real "music" page
try {
albumsUrls.AddRange(BandcampHelper.GetAlbumsUrl(htmlCode));
} catch (NoAlbumFoundException) {
LogAdded(this, new LogArgs($"No referred album could be found on {artistMusicPage}. Try to uncheck the \"Download artist discography\" option", LogType.Error));
continue;
}
}
}
return(albumsUrls.Distinct().ToList());
}
/// <summary>
/// Downloads and returns the cover art of the specified album. Depending on UserSettings, save the cover art in
/// the album folder.
/// </summary>
/// <param name="album">The album.</param>
private async Task <TagLib.Picture> DownloadCoverArtAsync(Album album)
{
TagLib.Picture artworkInTags = null;
int tries = 0;
bool artworkDownloaded = false;
TrackFile currentFile = DownloadingFiles.Where(f => f.Url == album.ArtworkUrl).First();
do
{
if (_cancelDownloads)
{
// Abort
return(null);
}
using (var webClient = new WebClient()) {
ProxyHelper.SetProxy(webClient);
// Update progress bar when downloading
webClient.DownloadProgressChanged += (s, e) => {
currentFile.BytesReceived = e.BytesReceived;
};
// Register current download
_cancellationTokenSource.Token.Register(webClient.CancelAsync);
// Start download
try {
await webClient.DownloadFileTaskAsync(album.ArtworkUrl, album.ArtworkTempPath);
artworkDownloaded = true;
} catch (WebException ex) when(ex.Status == WebExceptionStatus.RequestCanceled)
{
// Downloads cancelled by the user
return(null);
} catch (TaskCanceledException) {
// Downloads cancelled by the user
return(null);
} catch (WebException) {
// Connection closed probably because no response from Bandcamp
if (tries < App.UserSettings.DownloadMaxTries)
{
LogAdded(this, new LogArgs($"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>
/// Returns the artists discography from any URL (artist, album, track).
/// </summary>
/// <param name="urls">The URLs.</param>
private async Task <List <string> > GetArtistDiscographyAsync(List <string> urls)
{
var albumsUrls = new List <string>();
foreach (string url in urls)
{
LogAdded(this, new LogArgs($"Retrieving artist discography from {url}", LogType.Info));
// Retrieve URL HTML source code
string htmlCode = "";
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
if (_cancelDownloads)
{
// Abort
return(new List <string>());
}
try {
htmlCode = await webClient.DownloadStringTaskAsync(url);
} catch {
LogAdded(this, new LogArgs($"Could not retrieve data for {url}", LogType.Error));
continue;
}
}
// Get artist "music" bandcamp page (http://artist.bandcamp.com/music)
var regex = new Regex("https?://[^/]*");
string artistPage = regex.Match(url).ToString();
string artistMusicPage = artistPage + "/music";
// Retrieve artist "music" page HTML source code
using (var webClient = new WebClient()
{
Encoding = Encoding.UTF8
}) {
ProxyHelper.SetProxy(webClient);
if (_cancelDownloads)
{
// Abort
return(new List <string>());
}
try {
htmlCode = await webClient.DownloadStringTaskAsync(artistMusicPage);
} catch {
LogAdded(this, new LogArgs($"Could not retrieve data for {artistMusicPage}", LogType.Error));
continue;
}
}
int count = albumsUrls.Count;
try {
albumsUrls.AddRange(BandcampHelper.GetAlbumsUrl(htmlCode, artistPage));
} catch (NoAlbumFoundException) {
LogAdded(this, new LogArgs($"No referred album could be found on {artistMusicPage}. Try to uncheck the \"Download artist discography\" option", LogType.Error));
}
if (albumsUrls.Count - count == 0)
{
// This seem to be a one-album artist with no "music" page => URL redirects to the unique album URL
albumsUrls.Add(url);
}
}
return(albumsUrls.Distinct().ToList());
}