private void UnpackPackage(PackageDescription package)
{
string cachefile = GetCacheFileName(package);
try
{
using (SHA256 hash = SHA256.Create())
{
using (var fs = new FileStream(cachefile, FileMode.Open, FileAccess.Read))
{
hash.ComputeHash(fs);
}
if (!IsHashEqual(hash.Hash, package.Hash))
{
throw new InvalidPackageHashException("Package " + package.Name + " is invalid");
}
}
}
catch
{
File.Delete(cachefile);
throw;
}
m_RwLock.AcquireWriterLock(-1);
try
{
package.WriteFile(Path.Combine(InstalledPackagesPath, package.Name + ".spkg"));
using (var fs = new FileStream(cachefile, FileMode.Open))
{
using (var zip = new ZipArchive(fs))
{
foreach (ZipArchiveEntry entry in zip.Entries)
{
using (Stream i = entry.Open())
{
string targetFile = Path.Combine(InstallRootPath, entry.FullName);
if (DoesFileRequireReplacement(entry.FullName))
{
if (!File.Exists(targetFile + ".delete") && File.Exists(targetFile))
{
try
{
File.Delete(targetFile);
}
catch
{
File.Move(targetFile, targetFile + ".delete");
}
}
if (File.Exists(targetFile + ".delete"))
{
IsRestartRequired = true;
}
}
if (File.Exists(targetFile))
{
File.Delete(targetFile);
}
string targetDir = Path.GetFullPath(Path.Combine(targetFile, ".."));
if (!Directory.Exists(targetDir))
{
Directory.CreateDirectory(targetDir);
}
using (var o = new FileStream(targetFile, FileMode.Create))
{
i.CopyTo(o);
}
}
}
}
}
m_InstalledPackages[package.Name] = new PackageDescription(package);
}
finally
{
m_RwLock.ReleaseWriterLock();
}
}
