Dictionary <string, PackageEntry> ParseIndex(Dictionary <uint, PackageEntry> entries, HashSet <string> allPossibleFilenames)
{
var classicIndex = new Dictionary <string, PackageEntry>();
var crcIndex = new Dictionary <string, PackageEntry>();
// Try and find a local mix database
var dbNameClassic = PackageEntry.HashFilename("local mix database.dat", PackageHashType.Classic);
var dbNameCRC = PackageEntry.HashFilename("local mix database.dat", PackageHashType.CRC32);
foreach (var kv in entries)
{
if (kv.Key == dbNameClassic || kv.Key == dbNameCRC)
{
using (var content = GetContent(kv.Value))
{
var db = new XccLocalDatabase(content);
foreach (var e in db.Entries)
{
allPossibleFilenames.Add(e);
}
}
break;
}
}
foreach (var filename in allPossibleFilenames)
{
var classicHash = PackageEntry.HashFilename(filename, PackageHashType.Classic);
var crcHash = PackageEntry.HashFilename(filename, PackageHashType.CRC32);
PackageEntry e;
if (entries.TryGetValue(classicHash, out e))
{
classicIndex.Add(filename, e);
}
if (entries.TryGetValue(crcHash, out e))
{
crcIndex.Add(filename, e);
}
}
var bestIndex = crcIndex.Count > classicIndex.Count ? crcIndex : classicIndex;
var unknown = entries.Count - bestIndex.Count;
if (unknown > 0)
{
Log.Write("debug", "{0}: failed to resolve filenames for {1} unknown hashes".F(Name, unknown));
}
return(bestIndex);
}
Dictionary <string, PackageEntry> ParseIndex(Dictionary <uint, PackageEntry> entries, string[] globalFilenames)
{
var classicIndex = new Dictionary <string, PackageEntry>();
var crcIndex = new Dictionary <string, PackageEntry>();
IEnumerable <string> allPossibleFilenames = globalFilenames;
// Try and find a local mix database
var dbNameClassic = PackageEntry.HashFilename("local mix database.dat", PackageHashType.Classic);
var dbNameCRC = PackageEntry.HashFilename("local mix database.dat", PackageHashType.CRC32);
foreach (var kv in entries)
{
if (kv.Key == dbNameClassic || kv.Key == dbNameCRC)
{
using (var content = GetContent(kv.Value))
{
var db = new XccLocalDatabase(content);
allPossibleFilenames = allPossibleFilenames.Concat(db.Entries);
}
break;
}
}
foreach (var filename in allPossibleFilenames.Distinct())
{
var classicHash = PackageEntry.HashFilename(filename, PackageHashType.Classic);
var crcHash = PackageEntry.HashFilename(filename, PackageHashType.CRC32);
if (entries.TryGetValue(classicHash, out var e))
{
classicIndex.Add(filename, e);
}
if (entries.TryGetValue(crcHash, out e))
{
crcIndex.Add(filename, e);
}
}
var bestIndex = crcIndex.Count > classicIndex.Count ? crcIndex : classicIndex;
var unknown = entries.Count - bestIndex.Count;
if (unknown > 0)
{
Log.Write("debug", $"{Name}: failed to resolve filenames for {unknown} unknown hashes");
}
return(bestIndex);
}
public Stream GetContent(PackageEntry entry)
{
return(SegmentStream.CreateWithoutOwningStream(s, dataStart + entry.Offset, (int)entry.Length));
}