bool IPackageLoader.TryParsePackage(Stream s, string filename, FS context, out IReadOnlyPackage package)
{
if (!filename.EndsWith(".bag", StringComparison.InvariantCultureIgnoreCase))
{
package = null;
return(false);
}
// A bag file is always accompanied with an .idx counterpart
// For example: audio.bag requires the audio.idx file
var indexFilename = Path.ChangeExtension(filename, ".idx");
List <IdxEntry> entries = null;
try
{
// Build the index and dispose the stream, it is no longer needed after this
using (var indexStream = context.Open(indexFilename))
entries = new IdxReader(indexStream).Entries;
}
catch
{
package = null;
return(false);
}
package = new BagFile(s, entries, filename);
return(true);
}
public ObjectCreator(Manifest manifest, FileSystem.FileSystem modFiles)
{
typeCache = new Cache <string, Type>(FindType);
ctorCache = new Cache <Type, ConstructorInfo>(GetCtor);
// Allow mods to load types from the core Game assembly, and any additional assemblies they specify.
var assemblyList = new List <Assembly>()
{
typeof(Game).Assembly
};
foreach (var path in manifest.Assemblies)
{
var data = modFiles.Open(path).ReadAllBytes();
// .NET doesn't provide any way of querying the metadata of an assembly without either:
// (a) loading duplicate data into the application domain, breaking the world.
// (b) crashing if the assembly has already been loaded.
// We can't check the internal name of the assembly, so we'll work off the data instead
var hash = CryptoUtil.SHA1Hash(data);
Assembly assembly;
if (!ResolvedAssemblies.TryGetValue(hash, out assembly))
{
assembly = Assembly.Load(data);
ResolvedAssemblies.Add(hash, assembly);
}
assemblyList.Add(assembly);
}
AppDomain.CurrentDomain.AssemblyResolve += ResolveAssembly;
assemblies = assemblyList.SelectMany(asm => asm.GetNamespaces().Select(ns => Pair.New(asm, ns))).ToArray();
AppDomain.CurrentDomain.AssemblyResolve -= ResolveAssembly;
}
public bool TryParsePackage(Stream s, string filename, OpenRA.FileSystem.FileSystem context, out IReadOnlyPackage package)
{
if (!filename.EndsWith("DDF"))
{
package = null;
return(false);
}
package = new DdfPackage(s, context.Open(filename.Replace(".DDF", ".ANI")), filename);
return(true);
}
Dictionary <string, PackageEntry> ParseIndex(Dictionary <uint, PackageEntry> entries)
{
var classicIndex = new Dictionary <string, PackageEntry>();
var crcIndex = new Dictionary <string, PackageEntry>();
var allPossibleFilenames = new HashSet <string>();
// 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)
{
var db = new XccLocalDatabase(GetContent(kv.Value));
foreach (var e in db.Entries)
{
allPossibleFilenames.Add(e);
}
break;
}
}
// Load the global mix database
// TODO: This should be passed to the mix file ctor
if (context.Exists("global mix database.dat"))
{
using (var db = new XccGlobalDatabase(context.Open("global mix database.dat")))
{
foreach (var e in db.Entries)
{
allPossibleFilenames.Add(e);
}
}
}
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);
}