private async Task <ILibraryOperationResult> WriteToFilesAsync(ILibraryInstallationState state, CancellationToken cancellationToken)
{
if (state.Files != null)
{
try
{
foreach (string file in state.Files)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryOperationResult.FromCancelled(state));
}
if (string.IsNullOrEmpty(file))
{
return(new LibraryOperationResult(state, PredefinedErrors.CouldNotWriteFile(file)));
}
string destinationPath = Path.Combine(state.DestinationPath, file);
var sourceStream = new Func <Stream>(() => GetStreamAsync(state, file, cancellationToken).Result);
bool writeOk = await HostInteraction.WriteFileAsync(destinationPath, sourceStream, state, cancellationToken).ConfigureAwait(false);
if (!writeOk)
{
return(new LibraryOperationResult(state, PredefinedErrors.CouldNotWriteFile(file)));
}
}
}
catch (UnauthorizedAccessException)
{
return(new LibraryOperationResult(state, PredefinedErrors.PathOutsideWorkingDirectory()));
}
catch (Exception ex)
{
HostInteraction.Logger.Log(ex.ToString(), LogLevel.Error);
return(new LibraryOperationResult(state, PredefinedErrors.UnknownException()));
}
}
return(LibraryOperationResult.FromSuccess(state));
}
/// <summary>
/// Copies ILibraryInstallationState files to cache
/// </summary>
/// <param name="state"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
private async Task <ILibraryOperationResult> RefreshCacheAsync(ILibraryInstallationState state, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryOperationResult.FromCancelled(state));
}
string libraryDir = Path.Combine(CacheFolder, state.Name, state.Version);
try
{
var librariesMetadata = new HashSet <CacheFileMetadata>();
foreach (string sourceFile in state.Files)
{
string cacheFile = Path.Combine(libraryDir, sourceFile);
string url = GetDownloadUrl(state, sourceFile);
var newEntry = new CacheFileMetadata(url, cacheFile);
librariesMetadata.Add(newEntry);
}
await _cacheService.RefreshCacheAsync(librariesMetadata, HostInteraction.Logger, cancellationToken);
}
catch (ResourceDownloadException ex)
{
HostInteraction.Logger.Log(ex.ToString(), LogLevel.Error);
return(new LibraryOperationResult(state, PredefinedErrors.FailedToDownloadResource(ex.Url)));
}
catch (OperationCanceledException)
{
return(LibraryOperationResult.FromCancelled(state));
}
catch (Exception ex)
{
HostInteraction.Logger.Log(ex.InnerException.ToString(), LogLevel.Error);
return(new LibraryOperationResult(state, PredefinedErrors.UnknownException()));
}
return(LibraryOperationResult.FromSuccess(state));
}
/// <inheritdoc />
public virtual async Task <ILibraryOperationResult> UpdateStateAsync(ILibraryInstallationState desiredState, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryOperationResult.FromCancelled(desiredState));
}
string libraryId = LibraryNamingScheme.GetLibraryId(desiredState.Name, desiredState.Version);
try
{
ILibraryCatalog catalog = GetCatalog();
ILibrary library = await catalog.GetLibraryAsync(desiredState.Name, desiredState.Version, cancellationToken).ConfigureAwait(false);
if (library == null)
{
return(new LibraryOperationResult(desiredState, PredefinedErrors.UnableToResolveSource(desiredState.Name, desiredState.ProviderId)));
}
if (desiredState.Files != null && desiredState.Files.Count > 0)
{
// expand any potential file patterns
IEnumerable <string> updatedFiles = FileGlobbingUtility.ExpandFileGlobs(desiredState.Files, library.Files.Keys);
var processedState = new LibraryInstallationState
{
Name = desiredState.Name,
Version = desiredState.Version,
ProviderId = desiredState.ProviderId,
DestinationPath = desiredState.DestinationPath,
IsUsingDefaultDestination = desiredState.IsUsingDefaultDestination,
IsUsingDefaultProvider = desiredState.IsUsingDefaultProvider,
Files = updatedFiles.ToList(),
};
return(CheckForInvalidFiles(processedState, libraryId, library));
}
desiredState = new LibraryInstallationState
{
ProviderId = Id,
Name = desiredState.Name,
Version = desiredState.Version,
DestinationPath = desiredState.DestinationPath,
Files = library.Files.Keys.ToList(),
IsUsingDefaultDestination = desiredState.IsUsingDefaultDestination,
IsUsingDefaultProvider = desiredState.IsUsingDefaultProvider
};
}
catch (InvalidLibraryException)
{
return(new LibraryOperationResult(desiredState, PredefinedErrors.UnableToResolveSource(libraryId, desiredState.ProviderId)));
}
catch (UnauthorizedAccessException)
{
return(new LibraryOperationResult(desiredState, PredefinedErrors.PathOutsideWorkingDirectory()));
}
catch (Exception ex)
{
HostInteraction.Logger.Log(ex.ToString(), LogLevel.Error);
return(new LibraryOperationResult(desiredState, PredefinedErrors.UnknownException()));
}
return(LibraryOperationResult.FromSuccess(desiredState));
}
/// <summary>
/// Installs a library as specified in the <paramref name="desiredState" /> parameter.
/// </summary>
/// <param name="desiredState">The details about the library to install.</param>
/// <param name="cancellationToken">A token that allows for the operation to be cancelled.</param>
/// <returns>
/// The <see cref="T:Microsoft.Web.LibraryInstaller.Contracts.ILibraryInstallationResult" /> from the installation process.
/// </returns>
/// <exception cref="InvalidLibraryException"></exception>
public async Task <ILibraryInstallationResult> InstallAsync(ILibraryInstallationState desiredState, CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryInstallationResult.FromCancelled(desiredState));
}
if (!desiredState.IsValid(out IEnumerable <IError> errors))
{
return(new LibraryInstallationResult(desiredState, errors.ToArray()));
}
try
{
var catalog = (CdnjsCatalog)GetCatalog();
ILibrary library = await catalog.GetLibraryAsync(desiredState.LibraryId, cancellationToken).ConfigureAwait(false);
if (library == null)
{
throw new InvalidLibraryException(desiredState.LibraryId, Id);
}
await HydrateCacheAsync(library, cancellationToken).ConfigureAwait(false);
var files = desiredState.Files?.ToList();
// "Files" is optional on this provider, so when none are specified all should be used
if (files == null || files.Count == 0)
{
desiredState = new LibraryInstallationState
{
ProviderId = Id,
LibraryId = desiredState.LibraryId,
DestinationPath = desiredState.DestinationPath,
Files = library.Files.Keys.ToList(),
};
}
foreach (string file in desiredState.Files)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryInstallationResult.FromCancelled(desiredState));
}
string path = Path.Combine(desiredState.DestinationPath, file);
var sourceStream = new Func <Stream>(() => GetStreamAsync(desiredState, file, cancellationToken).Result);
bool writeOk = await HostInteraction.WriteFileAsync(path, sourceStream, desiredState, cancellationToken).ConfigureAwait(false);
if (!writeOk)
{
return(new LibraryInstallationResult(desiredState, PredefinedErrors.CouldNotWriteFile(file)));
}
}
}
catch (Exception ex) when(ex is InvalidLibraryException || ex.InnerException is InvalidLibraryException)
{
return(new LibraryInstallationResult(desiredState, PredefinedErrors.UnableToResolveSource(desiredState.LibraryId, desiredState.ProviderId)));
}
catch (UnauthorizedAccessException)
{
return(new LibraryInstallationResult(desiredState, PredefinedErrors.PathOutsideWorkingDirectory()));
}
catch (Exception ex)
{
HostInteraction.Logger.Log(ex.ToString(), LogLevel.Error);
return(new LibraryInstallationResult(desiredState, PredefinedErrors.UnknownException()));
}
return(LibraryInstallationResult.FromSuccess(desiredState));
}
public async Task <ILibraryInstallationResult> InstallAsync(ILibraryInstallationState desiredState, CancellationToken cancellationToken)
{
try
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryInstallationResult.FromCancelled(desiredState));
}
var catalog = (CdnjsCatalog)GetCatalog();
ILibrary library = await catalog.GetLibraryAsync(desiredState.LibraryId, cancellationToken).ConfigureAwait(false);
if (library == null)
{
throw new InvalidLibraryException(desiredState.LibraryId, Id);
}
await HydrateCacheAsync(library, cancellationToken).ConfigureAwait(false);
var files = desiredState.Files?.ToList();
if (files == null || files.Count == 0)
{
desiredState = new LibraryInstallationState
{
ProviderId = Id,
LibraryId = desiredState.LibraryId,
DestinationPath = desiredState.DestinationPath,
Files = library.Files.Keys.ToList()
};
}
foreach (string file in desiredState.Files)
{
if (cancellationToken.IsCancellationRequested)
{
return(LibraryInstallationResult.FromCancelled(desiredState));
}
string path = Path.Combine(desiredState.DestinationPath, file);
var func = new Func <Stream>(() => GetStream(desiredState, file));
bool writeOk = await HostInteraction.WriteFileAsync(path, func, desiredState, cancellationToken).ConfigureAwait(false);
if (!writeOk)
{
return(new LibraryInstallationResult(desiredState, PredefinedErrors.CouldNotWriteFile(file)));
}
}
}
catch (Exception ex) when(ex is InvalidLibraryException || ex.InnerException is InvalidLibraryException)
{
return(new LibraryInstallationResult(desiredState, PredefinedErrors.UnableToResolveSource(desiredState.LibraryId, desiredState.ProviderId)));
}
catch (Exception ex)
{
HostInteraction.Logger.Log(ex.ToString(), LogLevel.Error);
return(new LibraryInstallationResult(desiredState, PredefinedErrors.UnknownException()));
}
return(LibraryInstallationResult.FromSuccess(desiredState));
}
