void checksumPackage(ReleaseEntry downloadedRelease)
{
var targetPackage = new FileInfo(
Path.Combine(rootAppDirectory, "packages", downloadedRelease.Filename));
if (!targetPackage.Exists)
{
this.Log().Error("File {0} should exist but doesn't", targetPackage.FullName);
throw new Exception("Checksummed file doesn't exist: " + targetPackage.FullName);
}
if (targetPackage.Length != downloadedRelease.Filesize)
{
this.Log().Error("File Length should be {0}, is {1}", downloadedRelease.Filesize, targetPackage.Length);
targetPackage.Delete();
throw new Exception("Checksummed file size doesn't match: " + targetPackage.FullName);
}
using (var file = targetPackage.OpenRead()) {
var hash = Utility.CalculateStreamSHA1(file);
if (!hash.Equals(downloadedRelease.SHA1, StringComparison.OrdinalIgnoreCase))
{
this.Log().Error("File SHA1 should be {0}, is {1}", downloadedRelease.SHA1, hash);
targetPackage.Delete();
throw new Exception("Checksum doesn't match: " + targetPackage.FullName);
}
}
}
Task <IDisposable> acquireUpdateLock()
{
if (updateLock != null)
{
return(Task.FromResult(updateLock));
}
return(Task.Run(() => {
var key = Utility.CalculateStreamSHA1(new MemoryStream(Encoding.UTF8.GetBytes(rootAppDirectory)));
IDisposable theLock;
try {
theLock = ModeDetector.InUnitTestRunner() ?
Disposable.Create(() => {}) : new SingleGlobalInstance(key, TimeSpan.FromMilliseconds(2000));
} catch (TimeoutException) {
throw new TimeoutException("Couldn't acquire update lock, another instance may be running updates");
}
var ret = Disposable.Create(() => {
theLock.Dispose();
updateLock = null;
});
updateLock = ret;
return ret;
}));
}
public static ReleaseEntry GenerateFromFile(Stream file, string filename, string baseUrl = null)
{
Contract.Requires(file != null && file.CanRead);
Contract.Requires(!String.IsNullOrEmpty(filename));
var hash = Utility.CalculateStreamSHA1(file);
return(new ReleaseEntry(hash, filename, file.Length, filenameIsDeltaFile(filename), baseUrl));
}
bool isPackageOk(ReleaseEntry downloadedRelease)
{
var targetPackage = new FileInfo(
Path.Combine(rootAppDirectory, "packages", downloadedRelease.Filename));
if (!targetPackage.Exists)
{
return(false);
}
if (targetPackage.Length != downloadedRelease.Filesize)
{
return(false);
}
using (var file = targetPackage.OpenRead()) {
var hash = Utility.CalculateStreamSHA1(file);
return(hash.Equals(downloadedRelease.SHA1, StringComparison.OrdinalIgnoreCase));
}
}
public static ReleaseEntry GenerateFromFile(Stream file, string filename, string baseUrl = null) => new ReleaseEntry(Utility.CalculateStreamSHA1(file), filename, file.Length, filenameIsDeltaFile(filename), baseUrl, null);