private void ProcessZipFileContents(byte[] rawBytes)
{
FriendlyName = "Variable: Zip file contents";
if (rawBytes[0x28] == 0x2f || rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41 ||
rawBytes[0x1c] == 0x2f || rawBytes[0x18] == 0x4e && rawBytes[0x1a] == 0x2f && rawBytes[0x1c] == 0x41)
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
}
else
{
Value = "!!! Unable to determine Value !!!";
}
}
public ShellBag0X32(byte[] rawBytes)
{
FriendlyName = "File";
ExtensionBlocks = new List<IExtensionBlock>();
ShortName = string.Empty;
var index = 2;
if (rawBytes[0x28] == 0x2f || (rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41))
{
//we have a good date
try
{
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
catch (Exception)
{
}
}
index += 1;
//skip unknown byte
index += 1;
var fileSize = BitConverter.ToUInt32(rawBytes, index);
FileSize = (int) fileSize;
index += 4; // skip file size since always 0 for directory
var tempBytes = new byte[4];
Array.Copy(rawBytes, index, tempBytes, 0, 4);
var lastmodifiedUtcRaw = tempBytes;
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(lastmodifiedUtcRaw);
index += 4;
index += 2;
var len = 0;
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var shortName = Encoding.GetEncoding(1252).GetString(tempBytes);
ShortName = shortName;
while (rawBytes[index] == 0x0)
{
index += 1;
}
//we are at extension blocks, so cut them up and process
// here is where we need to cut up the rest into extension blocks
var chunks = new List<byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
ExtensionBlocks.Add(block);
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
index += extsize;
}
}
public ShellBag0X74(byte[] rawBytes)
{
FriendlyName = "Users Files Folder";
ExtensionBlocks = new List <IExtensionBlock>();
var index = 2;
index += 2; // move past type and an unknown
var size = BitConverter.ToUInt16(rawBytes, index);
index += 2;
var sig74 = Encoding.GetEncoding(1252).GetString(rawBytes, index, 4);
if (sig74 == "CF\0\0")
{
if (rawBytes[0x28] == 0x2f ||
rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
}
if (sig74 != "CFSF")
{
throw new Exception($"Invalid signature! Should be CFSF but was {sig74}");
}
index += 4;
var subShellSize = BitConverter.ToUInt16(rawBytes, index);
index += 2;
var subClasstype = rawBytes[index];
index += 1;
index += 1; // skip unknown
var filesize = BitConverter.ToUInt32(rawBytes, index);
index += 4;
FileSize = (int)filesize;
var tempBytes = new byte[4];
Array.Copy(rawBytes, index, tempBytes, 0, 4);
index += 4;
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(tempBytes);
index += 2; //skip file attribute flag
var len = 0;
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var primaryName = Encoding.GetEncoding(1252).GetString(tempBytes);
while (rawBytes[index] == 0x0)
{
index += 1;
}
var delegateGuidRaw = new byte[16];
Array.Copy(rawBytes, index, delegateGuidRaw, 0, 16);
var delegateGuid = Utils.ExtractGuidFromShellItem(delegateGuidRaw);
if (delegateGuid != "5e591a74-df96-48d3-8d67-1733bcee28ba")
{
throw new Exception(
$"Delegate guid not expected value of 5e591a74-df96-48d3-8d67-1733bcee28ba. Actual value: {delegateGuid}");
}
index += 16;
var itemIdentifierGuidRaw = new byte[16];
Array.Copy(rawBytes, index, itemIdentifierGuidRaw, 0, 16);
var itemIdentifierGuid = Utils.ExtractGuidFromShellItem(itemIdentifierGuidRaw);
var itemName = Utils.GetFolderNameFromGuid(itemIdentifierGuid);
index += 16;
//0xbeef0004 section
//we are at extensnon blocks, so cut them up and process
// here is where we need to cut up the rest into extension blocks
var chunks = new List <byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
ExtensionBlocks.Add(block);
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
index += extsize;
}
}
public ShellBag0X31(byte[] rawBytes)
{
FriendlyName = "Directory";
ExtensionBlocks = new List <IExtensionBlock>();
var index = 2;
if (rawBytes[0x27] == 0x00 && rawBytes[0x28] == 0x2f && rawBytes[0x29] == 0x00 ||
rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
try
{
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
catch (Exception)
{
//this isnt really this kind of entry despite our best efforts to make sure it is, so fall thru and process normally
}
}
index += 1;
//skip unknown byte
index += 1;
index += 4; // skip file size since always 0 for directory
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(rawBytes.Skip(index).Take(4).ToArray());
index += 4;
index += 2;
var len = 0;
var beefPos = BitConverter.ToString(rawBytes).IndexOf("04-00-EF-BE", StringComparison.InvariantCulture) / 3;
beefPos = beefPos - 4; //add header back for beef
var strLen = beefPos - index;
if (rawBytes[2] == 0x35)
{
len = strLen;
}
else
{
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
}
var tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var shortName = "";
if (rawBytes[2] == 0x35)
{
shortName = Encoding.Unicode.GetString(tempBytes);
}
else
{
shortName = Encoding.GetEncoding(1252).GetString(tempBytes);
}
ShortName = shortName;
Value = shortName;
while (rawBytes[index] == 0x0)
{
index += 1;
}
// here is where we need to cut up the rest into extension blocks
var chunks = new List <byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
if (block.Signature.ToString("X").StartsWith("BEEF00"))
{
ExtensionBlocks.Add(block);
}
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
var beef0005 = block as Beef0005;
if (beef0005 != null)
{
//TODO Resolve this
// foreach (var internalBag in beef0005.InternalBags)
// {
// ExtensionBlocks.Add(new BeefPlaceHolder(null));
//
//
// }
}
index += extsize;
}
}
private void ProcessPropertyViewDefault(byte[] rawBytes)
{
FriendlyName = "Variable: Users property view";
var index = 10;
var shellPropertySheetListSize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifiersize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifierData = new byte[identifiersize];
Array.Copy(rawBytes, index, identifierData, 0, identifiersize);
index += identifiersize;
if (shellPropertySheetListSize > 0)
{
var propBytes = rawBytes.Skip(index).Take(shellPropertySheetListSize).ToArray();
var propStore = new PropertyStore(propBytes);
PropertyStore = propStore;
var p = propStore.Sheets.Where(t => t.PropertyNames.ContainsKey("32"));
if (p.Any())
{
//we can now look thry prop bytes for extension blocks
//TODO this is a hack until we can process vectors natively
var extOffsets = new List <int>();
try
{
var regexObj = new Regex("([0-9A-F]{2})-00-EF-BE", RegexOptions.IgnoreCase);
var matchResult = regexObj.Match(BitConverter.ToString(propBytes));
while (matchResult.Success)
{
extOffsets.Add(matchResult.Index);
matchResult = matchResult.NextMatch();
}
foreach (var extOffset in extOffsets)
{
var binaryOffset = extOffset / 3 - 4;
var exSize = BitConverter.ToInt16(propBytes, binaryOffset);
var exBytes = propBytes.Skip(binaryOffset).Take(exSize).ToArray();
var signature1 = BitConverter.ToUInt32(exBytes, 4);
//Debug.WriteLine(" 0x1f bag sig: " + signature1.ToString("X8"));
var block1 = Utils.GetExtensionBlockFromBytes(signature1, exBytes);
ExtensionBlocks.Add(block1);
}
}
catch (ArgumentException ex)
{
throw ex;
// Syntax error in the regular expression
}
// Debug.WriteLine("Found 32 key");
}
}
else
{
// Debug.Write("Oh no! No property sheets!");
// SiAuto.Main.LogWarning("Oh no! No property sheets!");
if (rawBytes[0x28] == 0x2f ||
rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
//41-75-67-4D is AugM
if (rawBytes[4] == 0x41 && rawBytes[5] == 0x75 && rawBytes[6] == 0x67 && rawBytes[7] == 0x4D)
{
var cdb = new ShellBagCDBurn(rawBytes);
Value = cdb.Value;
FriendlyName = cdb.FriendlyName;
CreatedOnTime = cdb.CreatedOnTime;
LastModificationTime = cdb.LastModificationTime;
LastAccessTime = cdb.LastAccessTime;
return;
}
Debug.Write("Oh no! No property sheets!");
Value = "!!! Unable to determine Value !!!";
}
index += shellPropertySheetListSize;
index += 2; //move past end of property sheet terminator
if (shellPropertySheetListSize > 0 && index < rawBytes.Length)
{
var extBlockSize = BitConverter.ToInt16(rawBytes, index);
if (extBlockSize > 0)
{
//process extension blocks
while (extBlockSize > 0)
{
var extBytes = rawBytes.Skip(index).Take(extBlockSize).ToArray();
index += extBlockSize;
var signature1 = BitConverter.ToUInt32(extBytes, 4);
var block1 = Utils.GetExtensionBlockFromBytes(signature1, extBytes);
ExtensionBlocks.Add(block1);
if (index >= rawBytes.Length)
{
break;
}
extBlockSize = BitConverter.ToInt16(rawBytes, index);
}
}
// int terminator = BitConverter.ToInt16(rawBytes, index);
//
// if (terminator > 0)
// {
// throw new Exception($"Expected terminator of 0, but got {terminator}");
// }
}
var valuestring = (from propertySheet in PropertyStore.Sheets
from propertyName in propertySheet.PropertyNames
where propertyName.Key == "10"
select propertyName.Value).FirstOrDefault();
if (valuestring == null)
{
var namesList =
(from propertySheet in PropertyStore.Sheets
from propertyName in propertySheet.PropertyNames
select propertyName.Value)
.ToList();
valuestring = string.Join("::", namesList.ToArray());
}
if (valuestring == "")
{
valuestring = "No Property sheet value found";
}
Value = valuestring;
}
public ShellBag0X2E(byte[] rawBytes)
{
ExtensionBlocks = new List<IExtensionBlock>();
var index = 0;
var postSig = BitConverter.ToInt64(rawBytes, rawBytes.Length - 8);
if (postSig == 0x0000ee306bfe9555)
{
FriendlyName = "User profile";
var la = Utils.ExtractDateTimeOffsetFromBytes(rawBytes.Skip(rawBytes.Length - 14).Take(4).ToArray());
LastAccessTime = la;
index = 10;
var tempString = Encoding.Unicode.GetString(rawBytes.Skip(index).ToArray()).Split('\0')[0];
Value = tempString;
return;
}
//this needs to change to be the default
if (rawBytes[0] == 20 || rawBytes[0] == 50 || rawBytes[0] == 0x3a)
{
ProcessGuid(rawBytes);
return;
}
//this needs to change to be the default
if (rawBytes[2] == 0x53)
{
ProcessGuid2(rawBytes);
return;
}
//zip file contents check
if (rawBytes[0x28] == 0x2f || (rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41))
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
try
{
ProcessPropertyViewDefault(rawBytes);
return;
}
catch (Exception)
{
}
//this is a different animal,
FriendlyName = "Root folder: MPT device";
index = 0x1e;
var storageStringNameLen = BitConverter.ToInt32(rawBytes, index);
index += 4;
var storageIdStringLen = BitConverter.ToInt32(rawBytes, index);
index += 4;
var fileSystemNameLen = BitConverter.ToInt32(rawBytes, index);
index = 0x28;
var storageName = Encoding.Unicode.GetString(rawBytes, index, storageStringNameLen*2 - 2);
index += storageStringNameLen*2;
var storageIdName = Encoding.Unicode.GetString(rawBytes, index, storageIdStringLen*2 - 2);
index += storageIdStringLen*2;
Value = storageName;
}
private void ProcessPropertyViewDefault(byte[] rawBytes)
{
FriendlyName = "Variable: Users property view";
var index = 10;
var shellPropertySheetListSize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifiersize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifierData = new byte[identifiersize];
Array.Copy(rawBytes, index, identifierData, 0, identifiersize);
index += identifiersize;
if (shellPropertySheetListSize > 0)
{
var propBytes = rawBytes.Skip(index).Take(shellPropertySheetListSize).ToArray();
var propStore = new PropertyStore(propBytes);
PropertyStore = propStore;
var p = propStore.Sheets.Where(t => t.PropertyNames.ContainsKey("32"));
if (p.Any())
{
//we can now look thry prop bytes for extension blocks
//TODO this is a hack until we can process vectors natively
var extOffsets = new List<int>();
try
{
var regexObj = new Regex("([0-9A-F]{2})-00-EF-BE", RegexOptions.IgnoreCase);
var matchResult = regexObj.Match(BitConverter.ToString(propBytes));
while (matchResult.Success)
{
extOffsets.Add(matchResult.Index);
matchResult = matchResult.NextMatch();
}
foreach (var extOffset in extOffsets)
{
var binaryOffset = extOffset/3 - 4;
var exSize = BitConverter.ToInt16(propBytes, binaryOffset);
var exBytes = propBytes.Skip(binaryOffset).Take(exSize).ToArray();
var signature1 = BitConverter.ToUInt32(exBytes, 4);
var block1 = Utils.GetExtensionBlockFromBytes(signature1, exBytes);
ExtensionBlocks.Add(block1);
}
}
catch (ArgumentException ex)
{
throw ex;
// Syntax error in the regular expression
}
}
}
else
{
if (rawBytes[0x28] == 0x2f ||
(rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41))
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
Debug.Write("Oh no! No property sheets!");
}
index += shellPropertySheetListSize;
index += 2; //move past end of property sheet terminator
var rawguid = Utils.ExtractGuidFromShellItem(rawBytes.Skip(index).Take(16).ToArray());
index += 16;
rawguid = Utils.ExtractGuidFromShellItem(rawBytes.Skip(index).Take(16).ToArray());
index += 16;
var name = Utils.GetFolderNameFromGuid(rawguid);
Value = name;
var extBlockSize = BitConverter.ToInt16(rawBytes, index);
if (extBlockSize > 0)
{
//process extension blocks
while (extBlockSize > 0)
{
var extBytes = rawBytes.Skip(index).Take(extBlockSize).ToArray();
index += extBlockSize;
var signature1 = BitConverter.ToUInt32(extBytes, 4);
var block1 = Utils.GetExtensionBlockFromBytes(signature1, extBytes);
ExtensionBlocks.Add(block1);
extBlockSize = BitConverter.ToInt16(rawBytes, index);
}
}
int terminator = BitConverter.ToInt16(rawBytes, index);
if (terminator > 0)
{
throw new Exception($"Expected terminator of 0, but got {terminator}");
}
}
public ShellBag0X2E(byte[] rawBytes)
{
ExtensionBlocks = new List <IExtensionBlock>();
var index = 0;
var postSig = BitConverter.ToInt64(rawBytes, rawBytes.Length - 8);
if (postSig == 0x0000ee306bfe9555)
{
FriendlyName = "User profile";
var la = Utils.ExtractDateTimeOffsetFromBytes(rawBytes.Skip(rawBytes.Length - 14).Take(4).ToArray());
LastAccessTime = la;
index = 10;
var tempString = Encoding.Unicode.GetString(rawBytes.Skip(index).ToArray()).Split('\0')[0];
Value = tempString;
return;
}
//this needs to change to be the default
if (rawBytes[0] == 20 || rawBytes[0] == 50 || rawBytes[0] == 0x3a)
{
ProcessGuid(rawBytes);
return;
}
//this needs to change to be the default
if (rawBytes[2] == 0x53)
{
ProcessGuid2(rawBytes);
return;
}
//zip file contents check
if (rawBytes[0x28] == 0x2f || rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
try
{
ProcessPropertyViewDefault(rawBytes);
return;
}
catch (Exception)
{
}
//this is a different animal,
FriendlyName = "Root folder: MPT device";
index = 0x1e;
var storageStringNameLen = BitConverter.ToInt32(rawBytes, index);
index += 4;
var storageIdStringLen = BitConverter.ToInt32(rawBytes, index);
index += 4;
var fileSystemNameLen = BitConverter.ToInt32(rawBytes, index);
index = 0x28;
var storageName = Encoding.Unicode.GetString(rawBytes, index, storageStringNameLen * 2 - 2);
index += storageStringNameLen * 2;
var storageIdName = Encoding.Unicode.GetString(rawBytes, index, storageIdStringLen * 2 - 2);
index += storageIdStringLen * 2;
Value = storageName;
}
private void ProcessPropertyViewDefault(byte[] rawBytes)
{
FriendlyName = "Variable: Users property view";
var index = 10;
var shellPropertySheetListSize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifiersize = BitConverter.ToInt16(rawBytes, index);
index += 2;
var identifierData = new byte[identifiersize];
Array.Copy(rawBytes, index, identifierData, 0, identifiersize);
index += identifiersize;
if (shellPropertySheetListSize > 0)
{
var propBytes = rawBytes.Skip(index).Take(shellPropertySheetListSize).ToArray();
var propStore = new PropertyStore(propBytes);
PropertyStore = propStore;
var p = propStore.Sheets.Where(t => t.PropertyNames.ContainsKey("32"));
if (p.Any())
{
//we can now look thry prop bytes for extension blocks
//TODO this is a hack until we can process vectors natively
var extOffsets = new List <int>();
try
{
var regexObj = new Regex("([0-9A-F]{2})-00-EF-BE", RegexOptions.IgnoreCase);
var matchResult = regexObj.Match(BitConverter.ToString(propBytes));
while (matchResult.Success)
{
extOffsets.Add(matchResult.Index);
matchResult = matchResult.NextMatch();
}
foreach (var extOffset in extOffsets)
{
var binaryOffset = extOffset / 3 - 4;
var exSize = BitConverter.ToInt16(propBytes, binaryOffset);
var exBytes = propBytes.Skip(binaryOffset).Take(exSize).ToArray();
var signature1 = BitConverter.ToUInt32(exBytes, 4);
var block1 = Utils.GetExtensionBlockFromBytes(signature1, exBytes);
ExtensionBlocks.Add(block1);
}
}
catch (ArgumentException ex)
{
throw ex;
// Syntax error in the regular expression
}
}
}
else
{
if (rawBytes[0x28] == 0x2f ||
rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
Debug.Write("Oh no! No property sheets!");
}
index += shellPropertySheetListSize;
index += 2; //move past end of property sheet terminator
var rawguid = Utils.ExtractGuidFromShellItem(rawBytes.Skip(index).Take(16).ToArray());
index += 16;
rawguid = Utils.ExtractGuidFromShellItem(rawBytes.Skip(index).Take(16).ToArray());
index += 16;
var name = Utils.GetFolderNameFromGuid(rawguid);
Value = name;
var extBlockSize = BitConverter.ToInt16(rawBytes, index);
if (extBlockSize > 0)
{
//process extension blocks
while (extBlockSize > 0)
{
var extBytes = rawBytes.Skip(index).Take(extBlockSize).ToArray();
index += extBlockSize;
var signature1 = BitConverter.ToUInt32(extBytes, 4);
var block1 = Utils.GetExtensionBlockFromBytes(signature1, extBytes);
ExtensionBlocks.Add(block1);
extBlockSize = BitConverter.ToInt16(rawBytes, index);
}
}
int terminator = BitConverter.ToInt16(rawBytes, index);
if (terminator > 0)
{
throw new Exception($"Expected terminator of 0, but got {terminator}");
}
}
public ShellBag0X31(byte[] rawBytes)
{
FriendlyName = "Directory";
ExtensionBlocks = new List<IExtensionBlock>();
var index = 2;
if ((rawBytes[0x27] == 0x00 && rawBytes[0x28] == 0x2f && rawBytes[0x29] == 0x00) ||
(rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41))
{
//we have a good date
try
{
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
catch (Exception)
{
//this isnt really this kind of entry despite our best efforts to make sure it is, so fall thru and process normally
}
}
index += 1;
//skip unknown byte
index += 1;
index += 4; // skip file size since always 0 for directory
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(rawBytes.Skip(index).Take(4).ToArray());
index += 4;
index += 2;
var len = 0;
var beefPos = BitConverter.ToString(rawBytes).IndexOf("04-00-EF-BE", StringComparison.InvariantCulture)/3;
beefPos = beefPos - 4; //add header back for beef
var strLen = beefPos - index;
if (rawBytes[2] == 0x35)
{
len = strLen;
}
else
{
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
}
var tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var shortName = "";
if (rawBytes[2] == 0x35)
{
shortName = Encoding.Unicode.GetString(tempBytes);
}
else
{
shortName = Encoding.GetEncoding(1252).GetString(tempBytes);
}
ShortName = shortName;
Value = shortName;
while (rawBytes[index] == 0x0)
{
index += 1;
}
// here is where we need to cut up the rest into extension blocks
var chunks = new List<byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
if (block.Signature.ToString("X").StartsWith("BEEF00"))
{
ExtensionBlocks.Add(block);
}
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
var beef0005 = block as Beef0005;
if (beef0005 != null)
{
//TODO Resolve this
// foreach (var internalBag in beef0005.InternalBags)
// {
// ExtensionBlocks.Add(new BeefPlaceHolder(null));
//
//
// }
}
index += extsize;
}
}
public ShellBag0X32(byte[] rawBytes)
{
FriendlyName = "File";
ExtensionBlocks = new List <IExtensionBlock>();
ShortName = string.Empty;
var index = 2;
if (rawBytes[0x28] == 0x2f || rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41)
{
//we have a good date
try
{
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
catch (Exception)
{
}
}
index += 1;
//skip unknown byte
index += 1;
var fileSize = BitConverter.ToUInt32(rawBytes, index);
FileSize = (int)fileSize;
index += 4; // skip file size since always 0 for directory
var tempBytes = new byte[4];
Array.Copy(rawBytes, index, tempBytes, 0, 4);
var lastmodifiedUtcRaw = tempBytes;
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(lastmodifiedUtcRaw);
index += 4;
index += 2;
var len = 0;
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var shortName = CodePagesEncodingProvider.Instance.GetEncoding(1252).GetString(tempBytes);
ShortName = shortName;
while (rawBytes[index] == 0x0)
{
index += 1;
}
//we are at extension blocks, so cut them up and process
// here is where we need to cut up the rest into extension blocks
var chunks = new List <byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
ExtensionBlocks.Add(block);
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
index += extsize;
}
}
public ShellBag0X74(byte[] rawBytes)
{
FriendlyName = "Users Files Folder";
ExtensionBlocks = new List<IExtensionBlock>();
var index = 2;
index += 2; // move past type and an unknown
var size = BitConverter.ToUInt16(rawBytes, index);
index += 2;
var sig74 = Encoding.GetEncoding(1252).GetString(rawBytes, index, 4);
if (sig74 == "CF\0\0")
{
if (rawBytes[0x28] == 0x2f ||
(rawBytes[0x24] == 0x4e && rawBytes[0x26] == 0x2f && rawBytes[0x28] == 0x41))
{
//we have a good date
var zip = new ShellBagZipContents(rawBytes);
FriendlyName = zip.FriendlyName;
LastAccessTime = zip.LastAccessTime;
Value = zip.Value;
return;
}
}
if (sig74 != "CFSF")
{
throw new Exception($"Invalid signature! Should be CFSF but was {sig74}");
}
index += 4;
var subShellSize = BitConverter.ToUInt16(rawBytes, index);
index += 2;
var subClasstype = rawBytes[index];
index += 1;
index += 1; // skip unknown
var filesize = BitConverter.ToUInt32(rawBytes, index);
index += 4;
FileSize = (int) filesize;
var tempBytes = new byte[4];
Array.Copy(rawBytes, index, tempBytes, 0, 4);
index += 4;
LastModificationTime = Utils.ExtractDateTimeOffsetFromBytes(tempBytes);
index += 2; //skip file attribute flag
var len = 0;
while (rawBytes[index + len] != 0x0)
{
len += 1;
}
tempBytes = new byte[len];
Array.Copy(rawBytes, index, tempBytes, 0, len);
index += len;
var primaryName = Encoding.GetEncoding(1252).GetString(tempBytes);
while (rawBytes[index] == 0x0)
{
index += 1;
}
var delegateGuidRaw = new byte[16];
Array.Copy(rawBytes, index, delegateGuidRaw, 0, 16);
var delegateGuid = Utils.ExtractGuidFromShellItem(delegateGuidRaw);
if (delegateGuid != "5e591a74-df96-48d3-8d67-1733bcee28ba")
{
throw new Exception(
$"Delegate guid not expected value of 5e591a74-df96-48d3-8d67-1733bcee28ba. Actual value: {delegateGuid}");
}
index += 16;
var itemIdentifierGuidRaw = new byte[16];
Array.Copy(rawBytes, index, itemIdentifierGuidRaw, 0, 16);
var itemIdentifierGuid = Utils.ExtractGuidFromShellItem(itemIdentifierGuidRaw);
var itemName = Utils.GetFolderNameFromGuid(itemIdentifierGuid);
index += 16;
//0xbeef0004 section
//we are at extensnon blocks, so cut them up and process
// here is where we need to cut up the rest into extension blocks
var chunks = new List<byte[]>();
while (index < rawBytes.Length)
{
var subshellitemdatasize = BitConverter.ToInt16(rawBytes, index);
if (subshellitemdatasize <= 0)
{
break;
}
if (subshellitemdatasize == 1)
{
//some kind of separator
index += 2;
}
else
{
chunks.Add(rawBytes.Skip(index).Take(subshellitemdatasize).ToArray());
index += subshellitemdatasize;
}
}
foreach (var bytes in chunks)
{
index = 0;
var extsize = BitConverter.ToInt16(bytes, index);
var signature = BitConverter.ToUInt32(bytes, 0x04);
//TODO does this need to check if its a 0xbeef?? regex?
var block = Utils.GetExtensionBlockFromBytes(signature, bytes);
ExtensionBlocks.Add(block);
var beef0004 = block as Beef0004;
if (beef0004 != null)
{
Value = beef0004.LongName;
}
index += extsize;
}
}