/// <summary>
/// Reads the new file table format in v9 and v10
/// </summary>
private void readNewFileTable(Stream header, bool readHash = false)
{
uint numFiles = header.ReadUInt32LE();
var files = new OffsetFile[numFiles];
for (var i = 0; i < numFiles; i++)
{
// Version 3 uses 32-bit file offsets
long arkFileOffset = header.ReadInt64LE();
string path = header.ReadLengthPrefixedString(System.Text.Encoding.UTF8);
var flags = header.ReadInt32LE();
uint size = header.ReadUInt32LE();
if (readHash)
{
header.Seek(4, SeekOrigin.Current); // Skips checksum
}
var finalSlash = path.LastIndexOf('/');
var fileDir = path.Substring(0, finalSlash < 0 ? 0 : finalSlash);
var fileName = path.Substring(finalSlash < 0 ? 0 : (finalSlash + 1));
var parent = makeOrGetDir(fileDir);
var file = new OffsetFile(fileName, parent, contentFileMeta, arkFileOffset, size);
file.ExtendedInfo["id"] = i;
file.ExtendedInfo["flags"] = flags;
files[i] = file;
parent.AddFile(file);
}
var numFiles2 = header.ReadUInt32LE();
if (numFiles != numFiles2)
{
throw new Exception("Ark header appears invalid (file count mismatch)");
}
for (var i = 0; i < numFiles2; i++)
{
files[i].ExtendedInfo["flags2"] = header.ReadInt32LE();
}
}
public async Task Initialize()
{
OffsetFile localOffset = null;
OffsetFile remoteOffset = null;
// Get the local offset file.
try
{
if (File.Exists(LocalOffsetFile))
{
var offsets = JsonConvert.DeserializeObject <OffsetFile>(File.ReadAllText(LocalOffsetFile));
if (offsets != null)
{
localOffset = offsets;
}
}
}
catch (Exception ex)
{
Log.Write(new Exception("Couldn't load offset file", ex), "OffsetService");
}
// Fetch latest offsets from online.
using (var client = new HttpClient())
{
try
{
var response = await client.GetAsync(Url);
response.EnsureSuccessStatusCode();
var body = await response.Content.ReadAsStringAsync();
remoteOffset = JsonConvert.DeserializeObject <OffsetFile>(body);
}
catch (HttpRequestException ex)
{
Log.Write(new Exception("Couldn't fetch offsets from online!", ex), "OffsetService");
}
}
if (remoteOffset == null && localOffset == null)
{
throw new Exception("Wasn't able to resolve any offsets");
}
// If the offsets are the same.
if (remoteOffset?.GameVersion == localOffset?.GameVersion)
{
// Check which offset version is greater and use it.
if (remoteOffset?.OffsetVersion > localOffset?.OffsetVersion)
{
Offsets = remoteOffset;
}
else
{
Offsets = localOffset;
}
}
else
{
// Use the offset with the latest game version.
if (remoteOffset?.GameVersion.CompareTo(localOffset?.GameVersion) > 0)
{
Offsets = remoteOffset;
}
else
{
Offsets = localOffset;
}
}
if (Offsets == null)
{
throw new Exception("Wasn't able to resolve any offsets");
}
}
