/// <summary>
/// A constructor used for fast deserializing
/// </summary>
/// <param name="myObjectLocation">the location of this object (ObjectPath and ObjectName) of the requested file within the file system</param>
/// <param name="mySerializedData">A bunch of bytes[] containing the serialized FileObject</param>
public FileObject(ObjectLocation myObjectLocation, Byte[] mySerializedData, IIntegrityCheck myIntegrityCheckAlgorithm, ISymmetricEncryption myEncryptionAlgorithm)
{
if (myObjectLocation == null || myObjectLocation.Length == 0)
throw new ArgumentNullException("Invalid myObjectLocation!");
if (mySerializedData == null || mySerializedData.Length == 0)
throw new ArgumentNullException("mySerializedData must not be null or its length be zero!");
Deserialize(mySerializedData, myIntegrityCheckAlgorithm, myEncryptionAlgorithm, false);
_isNew = false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as CreateForeignKeyProperties;
if (typedOtherCheck != null
&& typedOtherCheck._association == _association)
{
return true;
}
return false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as InferReferentialConstraints;
if (typedOtherCheck != null
&& typedOtherCheck._association == _association)
{
return true;
}
return false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as EnforceEntitySetMappingRules;
if (typedOtherCheck != null
&& typedOtherCheck._entitySetMapping == _entitySetMapping)
{
return true;
}
return false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as InferReferentialConstraints;
if (typedOtherCheck != null &&
typedOtherCheck._association == _association)
{
return(true);
}
return(false);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as EnforceEntitySetMappingRules;
if (typedOtherCheck != null &&
typedOtherCheck._entitySetMapping == _entitySetMapping)
{
return(true);
}
return(false);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as CreateForeignKeyProperties;
if (typedOtherCheck != null &&
typedOtherCheck._association == _association)
{
return(true);
}
return(false);
}
internal void AddIntegrityCheck(IIntegrityCheck newCheck)
{
foreach (var check in _integrityChecks)
{
// don't add duplicate checks
if (check.IsEqual(newCheck))
{
return;
}
}
_integrityChecks.Enqueue(newCheck);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as PropagateStoragePropertyFacetsToConceptualModel;
if (typedOtherCheck != null)
{
if (typedOtherCheck._artifact.Uri.Equals(_artifact.Uri))
{
return(true);
}
}
return(false);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as PropagateViewKeysToStorageModel;
if (typedOtherCheck != null)
{
if (typedOtherCheck._conceptualEntityType == _conceptualEntityType)
{
return true;
}
else if (typedOtherCheck._conceptualEntityTypes != null
&& _conceptualEntityTypes != null
&& new HashSet<EntityType>(_conceptualEntityTypes).SetEquals(typedOtherCheck._conceptualEntityTypes))
{
return true;
}
}
return false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as PropagateViewKeysToStorageModel;
if (typedOtherCheck != null)
{
if (typedOtherCheck._conceptualEntityType == _conceptualEntityType)
{
return(true);
}
else if (typedOtherCheck._conceptualEntityTypes != null &&
_conceptualEntityTypes != null &&
new HashSet <EntityType>(_conceptualEntityTypes).SetEquals(typedOtherCheck._conceptualEntityTypes))
{
return(true);
}
}
return(false);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as PropagateStoreGeneratedPatternToStorageModel;
if (typedOtherCheck == null)
{
return(false);
}
if (_artifact != null)
{
if (typedOtherCheck._artifact != null &&
_artifact.Uri.Equals(typedOtherCheck._artifact.Uri))
{
return(true);
}
else
{
return(false);
}
}
else if (_storageProperty != null)
{
if (typedOtherCheck._storageProperty != null &&
_storageProperty.Equals(typedOtherCheck._storageProperty))
{
return(true);
}
else
{
return(false);
}
}
Debug.Fail("Both _artifact and _storageProperty are null");
return(false);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
var typedOtherCheck = otherCheck as PropagateStoreGeneratedPatternToStorageModel;
if (typedOtherCheck == null)
{
return false;
}
if (_artifact != null)
{
if (typedOtherCheck._artifact != null
&& _artifact.Uri.Equals(typedOtherCheck._artifact.Uri))
{
return true;
}
else
{
return false;
}
}
else if (_storageProperty != null)
{
if (typedOtherCheck._storageProperty != null
&& _storageProperty.Equals(typedOtherCheck._storageProperty))
{
return true;
}
else
{
return false;
}
}
Debug.Fail("Both _artifact and _storageProperty are null");
return false;
}
/// <summary>
/// This will serialize the whole AFSObject including the common header of an
/// AAFSObject and the actual AFSObject
/// </summary>
/// <param name="myIntegrityCheckAlgorithm"></param>
/// <param name="myEncryptionAlgorithm"></param>
/// <param name="myCacheSerializeData"></param>
/// <returns></returns>
public Byte[] Serialize(IIntegrityCheck myIntegrityCheckAlgorithm, ISymmetricEncryption myEncryptionAlgorithm, Boolean myCacheSerializeData)
{
#region Data
Int32 IntegrityCheckValue_Length = 0;
Byte[] IntegrityCheckValue = null;
Int64 IntegrityCheckValue_Position = 0;
Int32 EncryptionParameters_Length = 0;
Byte DataPadding_Length = 0;
Int32 AdditionalPadding_Length = 0;
Byte[] _TmpSerializedAGraphStructure = null;
#endregion
try
{
#region Init SerializationWriter
SerializationWriter writer = new SerializationWriter();
#endregion
#region Pad the length of the EncryptionParameters
EncryptionParameters = Encoding.Default.GetBytes("-HIGHSECUREDATA-");
EncryptionParameters_Length = sones.Lib.BufferHelper.AlignBufferLength(EncryptionParameters.Length, 8);
#endregion
#region Serialize AAFSObjectHeader
Byte[] AAFSObjectHeader = new Byte[HeaderLength];
AAFSObjectHeader[0] = HeaderVersion;
if (myIntegrityCheckAlgorithm != null)
IntegrityCheckValue_Length = myIntegrityCheckAlgorithm.HashSize;
if (IntegrityCheckValue_Length % 8 == 0)
AAFSObjectHeader[1] = (Byte)(IntegrityCheckValue_Length / 8);
else AAFSObjectHeader[1] = (Byte)((IntegrityCheckValue_Length / 8) + 1);
if (EncryptionParameters_Length % 8 == 0)
AAFSObjectHeader[2] = (Byte)(EncryptionParameters_Length / 8);
else AAFSObjectHeader[2] = (Byte)((EncryptionParameters_Length / 8) + 1);
AAFSObjectHeader[3] = (Byte)(DataPadding_Length);
AAFSObjectHeader[4] = (Byte)(AdditionalPadding_Length / 256);
AAFSObjectHeader[5] = (Byte)(AdditionalPadding_Length % 256);
AAFSObjectHeader[6] = 0x00;
AAFSObjectHeader[7] = 0x00;
writer.WriteBytesDirect(AAFSObjectHeader); // 8 Bytes
IntegrityCheckValue_Position = writer.BaseStream.Position;
writer.WriteBytesDirect(new Byte[IntegrityCheckValue_Length]); // n or at least 16 Bytes
writer.WriteBytesDirect(EncryptionParameters); // m Bytes
#endregion
#region Serialize StructureVersion, ObjectUUID and the Inner Object
writer.WriteBytesDirect(BitConverter.GetBytes(_StructureVersion));
ObjectUUID.Serialize(ref writer); // n or at least 16 Bytes
Serialize(ref writer);
#endregion
_TmpSerializedAGraphStructure = writer.ToArray();
#region Encrypt
#endregion
#region Add IntegrityCheck
if (myIntegrityCheckAlgorithm != null && IntegrityCheckValue_Length > 0)
{
IntegrityCheckValue = myIntegrityCheckAlgorithm.GetHashValueAsByteArray(_TmpSerializedAGraphStructure);
// If the returned array is shorter than expected => pad with 0x00
// And if it is longer just copy the number of expected bytes
Array.Copy(IntegrityCheckValue, 0, _TmpSerializedAGraphStructure, IntegrityCheckValue_Position, IntegrityCheckValue.Length);
}
#endregion
isDirty = false;
if (myCacheSerializeData)
_SerializedAGraphStructure = _TmpSerializedAGraphStructure;
return _TmpSerializedAGraphStructure;
}
catch (SerializationException e)
{
throw new SerializationException(e.Message, e);
}
}
/// <summary>
/// This will call the normal Deserialize method and afterwards it will
/// copy the content of all AGraphStructure and AAFSObject properties
/// to the clone.
/// </summary>
/// <param name="mySerializedData">The fastserialized object as an array of bytes</param>
/// <param name="myAAFSObject">The AAFSObject to copy the content from</param>
public void Deserialize(Byte[] mySerializedData, IIntegrityCheck myIntegrityCheckAlgorithm, ISymmetricEncryption myEncryptionAlgorithm, AFSObject myAAFSObject)
{
Deserialize(mySerializedData, myIntegrityCheckAlgorithm, myEncryptionAlgorithm, false);
CloneObjectOntology(myAAFSObject);
}
public Exceptional Deserialize(Byte[] mySerializedData, IIntegrityCheck myIntegrityCheckAlgorithm, ISymmetricEncryption myEncryptionAlgorithm, Boolean myIgnoreIntegrityCheckFailures)
{
#region Data
Byte[] IntegrityCheckValue;
int IntegrityCheckValue_Length;
Int64 IntegrityCheckValue_Position;
Byte[] actualIntegrityCheckValue;
Byte[] EncryptionParameters;
int EncryptionParameters_Length;
int DataPadding_Length;
int AdditionalPadding_Length = 0;
#endregion
#region Check if data is larger than the minimum allowed size
if (mySerializedData == null)
throw new GraphFSException_InvalidInformationHeader("The information header is invalid!");
if (mySerializedData.Length < 8)
throw new GraphFSException_InvalidInformationHeader("The information header is invalid!");
#endregion
try
{
#region Init reader
var _SerializationReader = new SerializationReader(mySerializedData);
#endregion
#region Read HeaderVersion
var _NewHeaderVersion = _SerializationReader.ReadByte();
#endregion
#region Read Length of the Integrity Check Value
// Multiply the value of the first byte with 8
IntegrityCheckValue_Length = _SerializationReader.ReadByte() << 3;
if (IntegrityCheckValue_Length > mySerializedData.Length - HeaderLength)
throw new GraphFSException_InvalidIntegrityCheckLengthField("The length of the integrity check value is invalid!");
// HACK: Remeber that a IntegrityCheckValue of 0 will circumvent the whole integrity checking!
if (myIntegrityCheckAlgorithm != null)
if ((IntegrityCheckValue_Length > 0) && (IntegrityCheckValue_Length != myIntegrityCheckAlgorithm.HashSize))
throw new GraphFSException_InvalidIntegrityCheckLengthField("The length of the integrity check value is " + IntegrityCheckValue_Length + ", but " + myIntegrityCheckAlgorithm.HashSize + " was expected!");
#endregion
#region Read Length of the Encryption Parameters
// Multiply the value of the second byte with 8
EncryptionParameters_Length = _SerializationReader.ReadByte() << 3;
if (EncryptionParameters_Length > mySerializedData.Length - HeaderLength - IntegrityCheckValue_Length)
throw new GraphFSException_InvalidEncryptionParametersLengthField("The length of the encryption parameters is invalid!");
#endregion
#region Read Padding lengths
DataPadding_Length = (Int32)_SerializationReader.ReadByte();
AdditionalPadding_Length = (Int32)(256 * _SerializationReader.ReadByte() + _SerializationReader.ReadByte()) << 3;
if ((HeaderLength + IntegrityCheckValue_Length + EncryptionParameters_Length + AdditionalPadding_Length) >= mySerializedData.Length)
throw new GraphFSException_InvalidAdditionalPaddingLengthField("The length of the additional padding is invalid!");
_SerializationReader.ReadBytesDirect(2); // Read reserved bytes
#endregion
#region Read Integrity Check Value and Encryption Parameters
IntegrityCheckValue_Position = _SerializationReader.BaseStream.Position;
if (IntegrityCheckValue_Length > 0)
IntegrityCheckValue = _SerializationReader.ReadBytesDirect(IntegrityCheckValue_Length);
if (EncryptionParameters_Length > 0)
EncryptionParameters = _SerializationReader.ReadBytesDirect(EncryptionParameters_Length);
#endregion
#region Verify the integrity of the data
if (myIntegrityCheckAlgorithm != null && IntegrityCheckValue_Length > 0)
{
// Save the read IntegrityCheckValue
IntegrityCheckValue = new Byte[IntegrityCheckValue_Length];
Array.Copy(mySerializedData, IntegrityCheckValue_Position, IntegrityCheckValue, 0, IntegrityCheckValue_Length);
// Zero the IntegrityCheckValue within the serialized data
Byte[] AllZeros = new Byte[IntegrityCheckValue_Length];
Array.Copy(AllZeros, 0, mySerializedData, IntegrityCheckValue_Position, IntegrityCheckValue_Length);
// Calculate the actual IntegrityCheckValue
actualIntegrityCheckValue = myIntegrityCheckAlgorithm.GetHashValueAsByteArray(mySerializedData);
// Compare read and actual IntegrityCheckValue
if (IntegrityCheckValue.CompareByteArray(actualIntegrityCheckValue) != 0 && myIgnoreIntegrityCheckFailures == false)
throw new GraphFSException_IntegrityCheckFailed(String.Concat("The IntegrityCheck failed as ", actualIntegrityCheckValue.ToHexString(), " is not equal to the expected ", IntegrityCheckValue.ToHexString()));
}
#endregion
#region Decrypt the remaining data
//EncryptedData_Length = (UInt64) (mySerializedData.Length - (HeaderLength + IntegrityCheckValue_Length + EncryptionParameters_Length + AdditionalPadding_Length));
//EncryptedData = new Byte[EncryptedData_Length];
//Array.Copy(mySerializedData, HeaderLength + IntegrityCheckValue_Length + EncryptionParameters_Length, EncryptedData, 0, (Int64) EncryptedData_Length);
//#endregion
//#region Decrypt Data
// Decrypt Data, sooon...!
//if ( (UInt64) DataPadding_Length >= EncryptedData_Length)
// throw new GraphFSException_InvalidDataPaddingLengthField("The length of the data padding is invalid!");
//DecryptedData = new Byte[EncryptedData_Length - (UInt64) DataPadding_Length];
//Array.Copy(EncryptedData, 0, DecryptedData, 0, (Int64) (EncryptedData_Length - (UInt64) DataPadding_Length));
#endregion
#region Deserialize Inner Object
_StructureVersion = BitConverter.ToUInt16(_SerializationReader.ReadBytesDirect(2), 0);
ObjectUUID = new ObjectUUID();
ObjectUUID.Deserialize(ref _SerializationReader); // n or at least 16 Bytes
Deserialize(ref _SerializationReader);
#endregion
}
catch (GraphFSException_IntegrityCheckFailed e)
{
throw new GraphFSException_IntegrityCheckFailed("The AGraphStructure could not be deserialized as its integrity is corrupted!\n\n" + e);
}
catch (Exception e)
{
throw new GraphFSException_AGraphStructureCouldNotBeDeserialized("The AGraphStructure could not be deserialized!\n\n" + e);
}
_SerializedAGraphStructure = mySerializedData;
return new Exceptional();
}
/// <summary>
/// A constructor of the INode used for fast deserializing
/// </summary>
/// <param name="mySerializedData">A bunch of bytes[] containing the serialized INode</param>
public INode(Byte[] mySerializedData, IIntegrityCheck myIntegrityCheckAlgorithm, ISymmetricEncryption myEncryptionAlgorithm)
{
Deserialize(mySerializedData, myIntegrityCheckAlgorithm, myEncryptionAlgorithm);
_isNew = false;
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
// only allow one of these checks to run.
return (otherCheck is CheckArtifactBindings);
}
public bool IsEqual(IIntegrityCheck otherCheck)
{
// only allow one of these checks to run.
return(otherCheck is CheckArtifactBindings);
}
internal void AddIntegrityCheck(IIntegrityCheck newCheck)
{
foreach (var check in _integrityChecks)
{
// don't add duplicate checks
if (check.IsEqual(newCheck))
{
return;
}
}
_integrityChecks.Enqueue(newCheck);
}
