protected virtual IEnumerable <ProxyPathTableEntry> ReadPathTableEntries(Stream source, uint offset, uint length)
{
var entries = new List <ProxyPathTableEntry>();
source.Seek(offset, SeekOrigin.Begin);
uint sectionEnd = offset + length;
while (source.Position < sectionEnd)
{
var path = MiscUtilities.ReadString(source, false);
int skipSize = (int)ProxyPathTableEntry.EntryLength - 8 - path.Length;
source.Seek(skipSize, SeekOrigin.Current);
byte[] hash = new byte[8];
source.Read(hash, 0, hash.Length);
entries.Add(new ProxyPathTableEntry()
{
Path = path,
Hash = hash,
});
}
return(entries);
}
/// <remarks>
/// Method based on enohka's code.
/// See more at: http://github.com/enohka/moddingSuite
/// </remarks>
protected virtual void WriteDictionary(Stream target, EdataFile edataFile)
{
var sourceEdataHeader = edataFile.Header;
var contentFilesDict = edataFile
.ContentFiles
.OfType <EdataContentFile>()
.ToDictionary(x => x.Id);
target.Seek(sourceEdataHeader.DictOffset, SeekOrigin.Begin);
long dictEnd = sourceEdataHeader.DictOffset + sourceEdataHeader.DictLength;
uint id = 0;
//Odtworzenie słownika
while (target.Position < dictEnd)
{
var buffer = new byte[4];
target.Read(buffer, 0, 4);
int fileGroupId = BitConverter.ToInt32(buffer, 0);
if (fileGroupId == 0)
{
EdataContentFile curFile = contentFilesDict[id];
// FileEntrySize
target.Seek(4, SeekOrigin.Current);
buffer = BitConverter.GetBytes(curFile.Offset);
target.Write(buffer, 0, buffer.Length);
buffer = BitConverter.GetBytes(curFile.Size);
target.Write(buffer, 0, buffer.Length);
byte[] checkSum = curFile.Checksum;
target.Write(checkSum, 0, checkSum.Length);
string name = MiscUtilities.ReadString(target);
if ((name.Length + 1) % 2 == 1)
{
target.Seek(1, SeekOrigin.Current);
}
id++;
}
else if (fileGroupId > 0)
{
target.Seek(4, SeekOrigin.Current);
string name = MiscUtilities.ReadString(target);
if ((name.Length + 1) % 2 == 1)
{
target.Seek(1, SeekOrigin.Current);
}
}
}
target.Seek(sourceEdataHeader.DictOffset, SeekOrigin.Begin);
var dictBuffer = new byte[sourceEdataHeader.DictLength];
target.Read(dictBuffer, 0, dictBuffer.Length);
//Overwriting checksum
byte[] dictCheckSum = MD5.Create().ComputeHash(dictBuffer);
target.Seek(0x31, SeekOrigin.Begin);
target.Write(dictCheckSum, 0, dictCheckSum.Length);
}
/// <summary>
/// Reads Edata version 2 dictionary entries
/// </summary>
/// <param name="source"></param>
/// <param name="header"></param>
/// <param name="token"></param>
/// <returns></returns>
protected virtual EdataDictionaryRootEntry ReadDcitionaryEntries(
Stream source,
uint dictOffset,
uint dictLength)
{
EdataDictionaryRootEntry dictRoot = new EdataDictionaryRootEntry();
EdataDictionaryDirEntry workingDir = null;
source.Seek(dictOffset + dictRoot.Length, SeekOrigin.Begin);
long dictEnd = dictOffset + dictLength;
while (source.Position < dictEnd)
{
var buffer = new byte[4];
source.Read(buffer, 0, 4);
int entrysFirstFour = BitConverter.ToInt32(buffer, 0);
source.Read(buffer, 0, 4);
int entrysSecondFour = BitConverter.ToInt32(buffer, 0);
bool isFileEntry = (entrysFirstFour == 0);
if (isFileEntry)
{
int entryLength = entrysSecondFour;
//source.Read(buffer, 0, 4);
//int relevanceLength = BitConverter.ToInt32(buffer, 0);
buffer = new byte[8];
source.Read(buffer, 0, buffer.Length);
long offset = BitConverter.ToInt64(buffer, 0);
source.Read(buffer, 0, buffer.Length);
long length = BitConverter.ToInt64(buffer, 0);
var checksum = new byte[16];
source.Read(checksum, 0, checksum.Length);
String pathPart = MiscUtilities.ReadString(source);
if (pathPart.Length % 2 == 0)
{
source.Seek(1, SeekOrigin.Current);
}
var newFile = new EdataDictionaryFileEntry(pathPart, entryLength, offset, length, checksum);
if (workingDir != null)
{
workingDir.AddFollowingEntry(newFile);
//Usuwamy tylko jeśli pojawia się wpis pliku oznaczony jako kończący ścieżkę.
if (newFile.IsEndingEntry())
{
EdataDictionaryDirEntry previousEntry = null;
do
{
previousEntry = workingDir;
workingDir = workingDir.PrecedingEntry as EdataDictionaryDirEntry;
}while (workingDir != null && previousEntry.IsEndingEntry());
}
}
else
{
dictRoot.AddFollowingEntry(newFile);
}
}
else //isDirEntry
{
int entryLength = entrysFirstFour;
int relevanceLength = entrysSecondFour;
//source.Read(buffer, 0, 4);
//int relevanceLength = BitConverter.ToInt32(buffer, 0);
String pathPart = MiscUtilities.ReadString(source);
if (pathPart.Length % 2 == 0)
{
source.Seek(1, SeekOrigin.Current);
}
var newDir = new EdataDictionaryDirEntry(pathPart, entryLength, relevanceLength);
if (workingDir != null)
{
workingDir.AddFollowingEntry(newDir);
}
else
{
dictRoot.AddFollowingEntry(newDir);
}
workingDir = newDir;
}
}
return(dictRoot);
}
