public void DeletePackage(LocalPackageInfo packageInfo)
{
if (packageInfo == null)
{
throw new ArgumentNullException(nameof(packageInfo));
}
logger.LogInformation($"Deleting folder {packageInfo.Reference.FolderPath}.");
Directory.Delete(packageInfo.Reference.FolderPath, recursive: true);
logger.LogInformation($"Folder deleted {packageInfo.Reference.FolderPath}.");
}
public async Task <PackageDataValidatorResult> ValidatePackageAsync(LocalPackageInfo packageInfo, MeasureItem measure)
{
logger.LogDebug($"Starting validation of package {packageInfo}.");
var result = await ValidatePackageAsyncInternal(packageInfo);
if (result.IsValid)
{
logger.LogInformation($"Package {packageInfo} is valid.");
}
else
{
logger.LogWarning($"Package {packageInfo} validation FAILED:\n{string.Join("\n", result.Errors)}");
}
return(result);
}
public void ExtractPackage(LocalPackageInfo packageInfo, string targetFolder, bool validate)
{
if (packageInfo == null)
{
throw new ArgumentNullException(nameof(packageInfo));
}
// rent package lock
if (!packageInfo.LockProvider.TryLock(out object lockToken))
{
throw new InvalidOperationException("Package is marked to delete, can't extract it.");
}
try
{
if (validate)
{
// validate
var validator = new PackageDataValidator(app.LoggerFactory, app.Crypto);
var result = validator.ValidatePackageAsync(packageInfo, measure: null).Result;
if (!result.IsValid)
{
throw new InvalidOperationException($"Cannot validate package {packageInfo}:\n{string.Join("\n", result.Errors)}");
}
}
logger.LogInformation($"Extracting package {packageInfo} to folder: {targetFolder}");
// read all and extract
var sequencer = new PackagePartsSequencer();
IEnumerable <PackageDataStreamPart> allParts = sequencer.GetPartsForPackage(packageInfo.Reference.FolderPath, packageInfo.Sequence);
using (var readController = new ReadPackageDataStreamController(app.LoggerFactory, packageInfo.Reference, packageInfo.Sequence, allParts))
using (var readStream = new PackageDataStream(app.LoggerFactory, readController))
{
var archive = new PackageArchive(app.CompatibilityChecker, app.MessageSerializer);
archive.ReadToFolder(readStream, targetFolder);
}
logger.LogInformation($"Package {packageInfo} has been extracted.");
}
finally
{
packageInfo.LockProvider.Unlock(lockToken);
}
}
public LocalPackageInfo RegisterPackage(PackageHashes hashes, PackageMeta metadata)
{
if (hashes == null)
{
throw new ArgumentNullException(nameof(hashes));
}
// create directory
EnsurePath();
string packagePath = CreatePackagePath(hashes.PackageId);
if (Directory.Exists(packagePath))
{
logger.LogError("Can't add package with Id {0:s}. This hash already exists in local repository.", hashes.PackageId);
throw new InvalidOperationException("Package already exists in local repository.");
}
Directory.CreateDirectory(packagePath);
// store data
var packageSequence = hashes.CreatePackageSequence();
PackageDownloadInfo downloadStatus = PackageDownloadInfo.CreateForReadyForDownloadPackage(app.Version, hashes.PackageId, packageSequence);
UpdateDownloadStatus(downloadStatus);
UpdateHashes(hashes);
UpdateMetadata(metadata);
// allocate
var allocator = new PackageDataAllocator(app.LoggerFactory);
allocator.Allocate(packagePath, hashes.CreatePackageSequence(), overwrite: false);
// log and build result
logger.LogInformation($"New package {hashes.PackageId:s4} added to repository and allocated. Size: {SizeFormatter.ToString(hashes.PackageSize)}");
var reference = new PackageReference(packagePath, hashes.PackageId);
var result = new LocalPackageInfo(reference, downloadStatus, hashes, metadata, packageSequence);
return(result);
}
private async Task <PackageDataValidatorResult> ValidatePackageAsyncInternal(LocalPackageInfo packageInfo)
{
if (packageInfo == null)
{
throw new ArgumentNullException(nameof(packageInfo));
}
if (!packageInfo.DownloadStatus.IsDownloaded)
{
// remark: this can be implemented but don't need it now
throw new InvalidOperationException("Can't validate integrity of not fully downloaded package.");
}
// basic input data integrity validations
if (packageInfo.Hashes.PackageSize != packageInfo.Sequence.PackageSize)
{
return(PackageDataValidatorResult.WithError("Hashes file provided invalid package size that does not match with sequence."));
}
if (packageInfo.Metadata.PackageSize != packageInfo.Sequence.PackageSize)
{
return(PackageDataValidatorResult.WithError("Metadata file provided invalid package size that does not match with sequence."));
}
if (packageInfo.Sequence.SegmentsCount != packageInfo.Hashes.PackageSegmentsHashes.Length)
{
return(PackageDataValidatorResult.WithError("Hashes file provided invalid count of segments that does not match with sequence."));
}
// validate package hash calculated from segment hashes
var calculatedPackageHash = cryptoProvider.HashFromHashes(packageInfo.Hashes.PackageSegmentsHashes);
if (!calculatedPackageHash.Equals(packageInfo.Id))
{
return(PackageDataValidatorResult.WithError($"Hash mismatch. Calculated package hash is {calculatedPackageHash:s} but expected is {packageInfo.Id:s}."));
}
// before working with files - obtain lock to make sure package is not deleted on check
if (!packageInfo.LockProvider.TryLock(out object lockToken))
{
throw new InvalidOperationException("Can't obtain lock for this package. It is marked for deletion.");
}
try
{
// start checking files
var errors = new List <string>();
var sequencer = new PackagePartsSequencer();
// check if data files exists and if correct size
foreach (var dataFile in sequencer.GetDataFilesForPackage(packageInfo.Reference.FolderPath, packageInfo.Sequence))
{
try
{
var fileInfo = new FileInfo(dataFile.Path);
if (!fileInfo.Exists)
{
errors.Add($"Expected data file not found. File: {dataFile.Path}");
continue;
}
if (fileInfo.Length != dataFile.DataFileLength)
{
errors.Add($"Invalid length of data file. Expected is {dataFile.DataFileLength}b but actual is {fileInfo.Length}b. File: {dataFile.Path}");
continue;
}
}
catch (Exception e)
{
errors.Add($"Can't validate file \"{ dataFile.Path }\". Reason: {e.Message}");
}
}
// don't continue if files are not OK
if (errors.Any())
{
return(PackageDataValidatorResult.WithErrors(errors));
}
// do file hashes check
IEnumerable <PackageDataStreamPart> allParts = sequencer.GetPartsForPackage(packageInfo.Reference.FolderPath, packageInfo.Sequence);
try
{
using (var readPackageController = new ReadPackageDataStreamController(loggerFactory, packageInfo.Reference, packageInfo.Sequence, allParts))
using (var readPackageStream = new PackageDataStream(loggerFactory, readPackageController))
using (var validatePackageController = new ValidatePackageDataStreamController(loggerFactory, cryptoProvider, packageInfo.Sequence, packageInfo.Hashes, allParts, nestedStream: null))
using (var validatePackageStream = new PackageDataStream(loggerFactory, validatePackageController))
{
await readPackageStream.CopyToAsync(validatePackageStream);
}
}
catch (HashMismatchException e)
{
errors.Add($"Data file segment hash mismatch: {e.Message}");
}
catch (Exception e)
{
errors.Add($"Can't process data files to validation. {e.ToString()}");
}
// get result
if (errors.Any())
{
return(PackageDataValidatorResult.WithErrors(errors));
}
return(PackageDataValidatorResult.Valid);
}
finally
{
packageInfo.LockProvider.Unlock(lockToken);
}
}
public LocalPackageInfo CreatePackageFromFolder(string folderToProcess, string name, MeasureItem writeMeasure)
{
var operationMeasure = Stopwatch.StartNew();
// storage folder for package
EnsurePath();
name = string.IsNullOrWhiteSpace(name) ? FileHelper.GetFileOrDirectoryName(folderToProcess) : name;
DirectoryInfo buildDirectory = Directory.CreateDirectory(CreateBuildPath());
logger.LogInformation($"Creating package \"{name}\" from folder: {folderToProcess}");
// create package archive
PackageHashes packageHashes;
int entriesCount;
using (var controller = new CreatePackageDataStreamController(app.Version, app.LoggerFactory, app.Crypto, sequenceForNewPackages, buildDirectory.FullName))
{
using (var packageStream = new PackageDataStream(app.LoggerFactory, controller)
{
Measure = writeMeasure
})
{
var archive = new PackageArchive(app.CompatibilityChecker, app.MessageSerializer);
archive.WriteFromFolder(folderToProcess, packageStream);
entriesCount = archive.EntriesCount;
}
packageHashes = controller.PackageId;
}
// store package hashes
UpdateHashes(packageHashes, directoryPath: buildDirectory.FullName);
// store download status
PackageSequenceInfo packageSequence = packageHashes.CreatePackageSequence();
PackageDownloadInfo downloadStatus = PackageDownloadInfo.CreateForCreatedPackage(app.Version, packageHashes.PackageId, packageSequence);
UpdateDownloadStatus(downloadStatus, directoryPath: buildDirectory.FullName);
// store metadata
var metadata = new PackageMeta()
{
Created = DateTimeOffset.Now,
Name = name,
PackageSize = packageHashes.PackageSize,
Version = app.Version,
PackageId = packageHashes.PackageId
};
UpdateMetadata(metadata, directoryPath: buildDirectory.FullName);
// rename folder
string packagePath = CreatePackagePath(packageHashes.PackageId);
if (Directory.Exists(packagePath))
{
throw new InvalidOperationException($"Folder for package {packageHashes.PackageId:s} already exists. {packagePath}");
}
Directory.Move(buildDirectory.FullName, packagePath);
operationMeasure.Stop();
logger.LogInformation($"Created package \"{packagePath}\":\nHash: {packageHashes.PackageId}\nSize: {SizeFormatter.ToString(packageHashes.PackageSize)}\nFiles and directories: {entriesCount}\nTime: {operationMeasure.Elapsed}");
var reference = new PackageReference(packagePath, packageHashes.PackageId);
var result = new LocalPackageInfo(reference, downloadStatus, packageHashes, metadata, packageSequence);
return(result);
}
