public static Manifest Read(BinaryReader reader, long headerOffset)
{
// Read the bundle header
reader.BaseStream.Position = headerOffset;
uint majorVersion = reader.ReadUInt32();
uint minorVersion = reader.ReadUInt32();
int fileCount = reader.ReadInt32();
string bundleID = reader.ReadString();
bool isCompatible =
(majorVersion < MajorVersion) ||
(majorVersion == MajorVersion && minorVersion <= MinorVersion);
if (!isCompatible)
{
throw new BundleException("Extraction failed: Invalid Version");
}
// Read the manifest entries
Manifest manifest = new Manifest(bundleID);
for (long i = 0; i < fileCount; i++)
{
manifest.Files.Add(FileEntry.Read(reader));
}
if (manifest.Files.GroupBy(file => file.RelativePath).Where(g => g.Count() > 1).Any())
{
throw new BundleException("Extraction failed: Found multiple entries with the same bundle-relative-path");
}
return(manifest);
}
public static Manifest Read(BinaryReader reader)
{
// Read the manifest footer
// signatureSize is one byte longer, for the length encoding.
long signatureSize = Signature.Length + 1;
reader.BaseStream.Position = reader.BaseStream.Length - signatureSize;
string signature = reader.ReadString();
if (!signature.Equals(Signature))
{
throw new BundleException("Extraction failed: Invalid Bundle");
}
// The manifest header offset resides just behind the signature.
reader.BaseStream.Position = reader.BaseStream.Length - signatureSize - sizeof(long);
long headerOffset = reader.ReadInt64();
// Read the manifest header
reader.BaseStream.Position = headerOffset;
uint majorVersion = reader.ReadUInt32();
uint minorVersion = reader.ReadUInt32();
int fileCount = reader.ReadInt32();
string bundleID = reader.ReadString(); // Bundle ID
if (majorVersion != MajorVersion || minorVersion != MinorVersion)
{
throw new BundleException("Extraction failed: Invalid Version");
}
// Read the manifest entries
Manifest manifest = new Manifest(bundleID);
for (long i = 0; i < fileCount; i++)
{
manifest.Files.Add(FileEntry.Read(reader));
}
if (manifest.Files.GroupBy(file => file.RelativePath).Where(g => g.Count() > 1).Any())
{
throw new BundleException("Extraction failed: Found multiple entries with the same bundle-relative-path");
}
return(manifest);
}
public static Manifest Read(BinaryReader reader)
{
Manifest manifest = new Manifest();
// Read the manifest footer
// signatureSize is one byte longer, for the length encoding.
long signatureSize = Signature.Length + 1;
reader.BaseStream.Position = reader.BaseStream.Length - signatureSize;
string signature = reader.ReadString();
if (!signature.Equals(Signature))
{
throw new BundleException("Invalid Bundle");
}
// The manifest header offset resides just behind the signature.
reader.BaseStream.Position = reader.BaseStream.Length - signatureSize - sizeof(long);
long headerOffset = reader.ReadInt64();
// Read the manifest header
reader.BaseStream.Position = headerOffset;
uint majorVersion = reader.ReadUInt32();
uint minorVersion = reader.ReadUInt32();
int fileCount = reader.ReadInt32();
manifest.BundleID = reader.ReadString(); // Bundle ID
if (majorVersion != MajorVersion || minorVersion != MinorVersion)
{
throw new BundleException("Extraction failed: Invalid Version");
}
// Read the manifest entries
for (long i = 0; i < fileCount; i++)
{
manifest.Files.Add(FileEntry.Read(reader));
}
return(manifest);
}