void ParseProtobufManifestMetadata(ContentManifestMetadata metadata)
{
FilenamesEncrypted = metadata.filenames_encrypted;
DepotID = metadata.depot_id;
ManifestGID = metadata.gid_manifest;
CreationTime = DateUtils.DateTimeFromUnixTime(metadata.creation_time);
TotalUncompressedSize = metadata.cb_disk_original;
TotalCompressedSize = metadata.cb_disk_compressed;
}
void Deserialize(byte[] data)
{
ContentManifestPayload payload = null;
ContentManifestMetadata metadata = null;
ContentManifestSignature signature = null;
using (var ms = new MemoryStream(data))
using (var br = new BinaryReader(ms))
{
while ((ms.Length - ms.Position) > 0)
{
uint magic = br.ReadUInt32();
switch (magic)
{
case Steam3Manifest.MAGIC:
ms.Seek(-4, SeekOrigin.Current);
Steam3Manifest binaryManifest = new Steam3Manifest(br);
ParseBinaryManifest(binaryManifest);
uint marker = br.ReadUInt32();
if (marker != magic)
{
throw new InvalidDataException("Unable to find end of message marker for depot manifest");
}
break;
case DepotManifest.PROTOBUF_PAYLOAD_MAGIC:
uint payload_length = br.ReadUInt32();
byte[] payload_bytes = br.ReadBytes((int)payload_length);
using (var ms_payload = new MemoryStream(payload_bytes))
payload = Serializer.Deserialize <ContentManifestPayload>(ms_payload);
break;
case DepotManifest.PROTOBUF_METADATA_MAGIC:
uint metadata_length = br.ReadUInt32();
byte[] metadata_bytes = br.ReadBytes((int)metadata_length);
using (var ms_metadata = new MemoryStream(metadata_bytes))
metadata = Serializer.Deserialize <ContentManifestMetadata>(ms_metadata);
break;
case DepotManifest.PROTOBUF_SIGNATURE_MAGIC:
uint signature_length = br.ReadUInt32();
byte[] signature_bytes = br.ReadBytes((int)signature_length);
using (var ms_signature = new MemoryStream(signature_bytes))
signature = Serializer.Deserialize <ContentManifestSignature>(ms_signature);
break;
case DepotManifest.PROTOBUF_ENDOFMANIFEST_MAGIC:
break;
default:
throw new NotImplementedException(string.Format("Unrecognized magic value {0:X} in depot manifest.", magic));
}
}
}
if (payload != null && metadata != null && signature != null)
{
ParseProtobufManifestMetadata(metadata);
ParseProtobufManifestPayload(payload);
}
else
{
throw new InvalidDataException("Missing ContentManifest sections required for parsing depot manifest");
}
}
void ParseProtobufManifestMetadata(ContentManifestMetadata metadata)
{
FilenamesEncrypted = metadata.filenames_encrypted;
}