private static LogOnIdentity FindKnownKeyOrEmpty(ActiveFile activeFile)
{
foreach (LogOnIdentity key in Resolve.KnownIdentities.Identities)
{
if (activeFile.ThumbprintMatch(key.Passphrase))
{
return(key);
}
}
return(LogOnIdentity.Empty);
}
private static ActiveFile CheckIfKeyIsKnown(FileSystemState fileSystemState, ActiveFile activeFile)
{
if ((activeFile.Status & (ActiveFileStatus.AssumedOpenAndDecrypted | ActiveFileStatus.DecryptedIsPendingDelete | ActiveFileStatus.NotDecrypted)) == 0)
{
return(activeFile);
}
if (activeFile.Key != null)
{
return(activeFile);
}
foreach (AesKey key in fileSystemState.KnownKeys.Keys)
{
if (activeFile.ThumbprintMatch(key))
{
activeFile = new ActiveFile(activeFile, key);
}
return(activeFile);
}
return(activeFile);
}
public static void TestThumbprintNullKey()
{
IRuntimeFileInfo decryptedFileInfo = OS.Current.FileInfo(_testTextPath);
IRuntimeFileInfo encryptedFileInfo = OS.Current.FileInfo(_helloWorldAxxPath);
ILauncher process = new FakeLauncher(String.Empty);
AesKey key = new AesKey();
using (MemoryStream stream = new MemoryStream())
{
using (ActiveFile activeFile = new ActiveFile(encryptedFileInfo, decryptedFileInfo, key, ActiveFileStatus.None, process))
{
Assert.Throws<ArgumentNullException>(() =>
{
AesKey nullKey = null;
activeFile.ThumbprintMatch(nullKey);
});
}
}
}
public static void TestConstructor()
{
AesKey key = new AesKey();
ILauncher process = new FakeLauncher(String.Empty);
IRuntimeFileInfo decryptedFileInfo = OS.Current.FileInfo(_testTextPath);
IRuntimeFileInfo encryptedFileInfo = OS.Current.FileInfo(_helloWorldAxxPath);
using (ActiveFile activeFile = new ActiveFile(encryptedFileInfo, decryptedFileInfo, key, ActiveFileStatus.None, process))
{
decryptedFileInfo = activeFile.DecryptedFileInfo;
Assert.That(decryptedFileInfo.Exists, Is.True, "The file should exist in the fake file system.");
Assert.That(decryptedFileInfo.FullName, Is.EqualTo(_testTextPath), "The file should be named as it was in the constructor");
Assert.That(decryptedFileInfo.LastWriteTimeUtc, Is.EqualTo(decryptedFileInfo.LastWriteTimeUtc), "When a LastWriteTime is not specified, the decrypted file should be used to determine the value.");
Assert.That(activeFile.Process, Is.EqualTo(process), "The process should be set from the constructor.");
SetupAssembly.FakeRuntimeEnvironment.TimeFunction = (() => { return DateTime.UtcNow.AddMinutes(1); });
using (ActiveFile otherFile = new ActiveFile(activeFile, ActiveFileStatus.AssumedOpenAndDecrypted))
{
Assert.That(otherFile.Status, Is.EqualTo(ActiveFileStatus.AssumedOpenAndDecrypted), "The status should be as given in the constructor.");
Assert.That(otherFile.DecryptedFileInfo.FullName, Is.EqualTo(activeFile.DecryptedFileInfo.FullName), "This should be copied from the original instance.");
Assert.That(otherFile.EncryptedFileInfo.FullName, Is.EqualTo(activeFile.EncryptedFileInfo.FullName), "This should be copied from the original instance.");
Assert.That(otherFile.Key, Is.EqualTo(activeFile.Key), "This should be copied from the original instance.");
Assert.That(otherFile.LastActivityTimeUtc, Is.GreaterThan(activeFile.LastActivityTimeUtc), "This should not be copied from the original instance, but should be a later time.");
Assert.That(otherFile.Process, Is.EqualTo(process), "This should be copied from the original instance.");
Assert.That(activeFile.Process, Is.Null, "The process should only be owned by one instance at a time.");
Assert.That(otherFile.ThumbprintMatch(activeFile.Key), Is.True, "The thumbprints should match.");
}
using (ActiveFile otherFile = new ActiveFile(activeFile, ActiveFileStatus.AssumedOpenAndDecrypted, process))
{
Assert.That(otherFile.Process, Is.EqualTo(process), "This should be copied from the instance provided in the constructor.");
}
activeFile.DecryptedFileInfo.LastWriteTimeUtc = activeFile.DecryptedFileInfo.LastWriteTimeUtc.AddDays(1);
using (ActiveFile otherFile = new ActiveFile(activeFile, OS.Current.UtcNow, ActiveFileStatus.AssumedOpenAndDecrypted))
{
Assert.That(activeFile.IsModified, Is.True, "The original instance has not been encrypted since the last change.");
Assert.That(otherFile.IsModified, Is.False, "The copy indicates that it has been encrypted and thus is not modified.");
}
}
}
private static ActiveFile CheckIfKeyIsKnown(FileSystemState fileSystemState, ActiveFile activeFile)
{
if ((activeFile.Status & (ActiveFileStatus.AssumedOpenAndDecrypted | ActiveFileStatus.DecryptedIsPendingDelete | ActiveFileStatus.NotDecrypted)) == 0)
{
return activeFile;
}
if (activeFile.Key != null)
{
return activeFile;
}
foreach (AesKey key in fileSystemState.KnownKeys.Keys)
{
if (activeFile.ThumbprintMatch(key))
{
activeFile = new ActiveFile(activeFile, key);
}
return activeFile;
}
return activeFile;
}
