private static string MakeFullPathFromState(LocalStorageFileState state)
{
string temporaryCachePath = BattleNet.Client().GetTemporaryCachePath();
string str = string.Concat(state.CH.Sha256Digest, ".", state.CH.Usage);
return(Path.Combine(temporaryCachePath, str));
}
public bool GetFile(ContentHandle ch, LocalStorageAPI.DownloadCompletedCallback cb, object userContext = null)
{
bool flag;
try
{
LocalStorageFileState localStorageFileState = new LocalStorageFileState(LocalStorageAPI.m_downloadId)
{
CH = ch,
Callback = cb,
UserContext = userContext
};
LocalStorageAPI.s_log.LogDebug("Starting GetFile State={0}", new object[] { localStorageFileState });
if (!this.LoadStateFromDrive(localStorageFileState))
{
LocalStorageAPI.s_log.LogDebug("Unable to load file from disk, starting a download. State={0}", new object[] { localStorageFileState });
this.DownloadFromDepot(localStorageFileState);
}
return(true);
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION (GetFile): {0}", new object[] { exception.Message });
flag = false;
}
return(flag);
}
private static void ReceiveCallback(IAsyncResult ar)
{
LocalStorageFileState asyncState = (LocalStorageFileState)ar.AsyncState;
try
{
LocalStorageAPI.s_log.LogDebug("ReceiveCallback called for State={0}", new object[] { asyncState });
int num = asyncState.Socket.EndReceive(ar);
if (num <= 0)
{
LocalStorageAPI.CompleteDownload(asyncState);
}
else
{
int num1 = (asyncState.FileData != null ? (int)asyncState.FileData.Length : 0) + num;
MemoryStream memoryStream = new MemoryStream(new byte[num1], 0, num1, true, true);
if (asyncState.FileData != null)
{
memoryStream.Write(asyncState.FileData, 0, (int)asyncState.FileData.Length);
}
memoryStream.Write(asyncState.ReceiveBuffer, 0, num);
asyncState.FileData = memoryStream.GetBuffer();
asyncState.Socket.BeginReceive(asyncState.ReceiveBuffer, 0, LocalStorageAPI.m_bufferSize, SocketFlags.None, new AsyncCallback(LocalStorageAPI.ReceiveCallback), asyncState);
}
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[] { exception.Message });
asyncState.FailureMessage = exception.Message;
LocalStorageAPI.ExecuteFailedDownload(asyncState);
}
}
private static string MakeFullPathFromState(LocalStorageFileState state)
{
string temporaryCachePath = BattleNet.Client().GetTemporaryCachePath();
string text = state.CH.Sha256Digest + "." + state.CH.Usage;
return(Path.Combine(temporaryCachePath, text));
}
public bool GetFile(ContentHandle ch, LocalStorageAPI.DownloadCompletedCallback cb, object userContext = null)
{
try
{
LocalStorageFileState localStorageFileState = new LocalStorageFileState(LocalStorageAPI.m_downloadId);
localStorageFileState.CH = ch;
localStorageFileState.Callback = cb;
localStorageFileState.UserContext = userContext;
LocalStorageAPI.s_log.LogDebug("Starting GetFile State={0}", new object[]
{
localStorageFileState
});
if (!this.LoadStateFromDrive(localStorageFileState))
{
LocalStorageAPI.s_log.LogDebug("Unable to load file from disk, starting a download. State={0}", new object[]
{
localStorageFileState
});
this.DownloadFromDepot(localStorageFileState);
}
}
catch (Exception ex)
{
LocalStorageAPI.s_log.LogWarning("EXCEPTION (GetFile): {0}", new object[]
{
ex.get_Message()
});
return(false);
}
return(true);
}
public override void Process()
{
List <LocalStorageFileState> completedDownloads = LocalStorageAPI.m_completedDownloads;
lock (completedDownloads)
{
using (List <LocalStorageFileState> .Enumerator enumerator = LocalStorageAPI.m_completedDownloads.GetEnumerator())
{
while (enumerator.MoveNext())
{
LocalStorageFileState current = enumerator.get_Current();
if (current.FileData != null)
{
LocalStorageAPI.s_log.LogDebug("Request completed State={0}", new object[]
{
current
});
}
else
{
LocalStorageAPI.s_log.LogWarning("Request failed State={0}", new object[]
{
current
});
}
LocalStorageAPI.s_log.Process();
current.Callback(current.FileData, current.UserContext);
}
}
LocalStorageAPI.m_completedDownloads.Clear();
}
}
private static void StoreStateToDrive(LocalStorageFileState state)
{
try
{
LocalStorageAPI.s_log.LogDebug("StoreState State={0}", new object[] { state });
string str = LocalStorageAPI.MakeFullPathFromState(state);
LocalStorageAPI.s_log.LogDebug("Attempting to save {0}", new object[] { str });
if (!File.Exists(str))
{
FileStream fileStream = File.Create(str, (int)state.FileData.Length);
if (state.CompressedData != null)
{
LocalStorageAPI.s_log.LogDebug("Writing compressed file to disk");
fileStream.Write(state.CompressedData, 0, (int)state.CompressedData.Length);
}
else
{
LocalStorageAPI.s_log.LogDebug("Writing uncompressed file to disk");
fileStream.Write(state.FileData, 0, (int)state.FileData.Length);
}
fileStream.Flush();
fileStream.Close();
LocalStorageAPI.s_log.LogDebug("Writing completed");
}
else
{
LocalStorageAPI.s_log.LogDebug("Unable to save the file, it already exists");
}
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION (StoreStateToDrive): {0}", new object[] { exception.Message });
}
}
private static void ConnectCallback(LocalStorageFileState state)
{
try
{
LocalStorageAPI.s_log.LogDebug("ConnectCallback called for State={0}", new object[]
{
state
});
state.ReceiveBuffer = new byte[LocalStorageAPI.m_bufferSize];
state.Socket.BeginReceive(state.ReceiveBuffer, 0, LocalStorageAPI.m_bufferSize, 0, new AsyncCallback(LocalStorageAPI.ReceiveCallback), state);
string text = string.Format("GET /{0}.{1} HTTP/1.1\r\n", state.CH.Sha256Digest, state.CH.Usage);
text = text + "Host: " + state.Connection.Host + "\r\n";
text += "User-Agent: HearthStone\r\n";
text += "Connection: close\r\n";
text += "\r\n";
byte[] bytes = Encoding.get_ASCII().GetBytes(text);
state.Socket.Send(bytes, 0, bytes.Length, 0);
}
catch (Exception ex)
{
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[]
{
ex.get_Message()
});
}
}
private static void CompleteDownload(LocalStorageFileState state)
{
bool flag = true;
LocalStorageAPI.s_log.LogDebug("Download completed for State={0}", new object[] { state });
HTTPHeader hTTPHeader = LocalStorageAPI.ParseHTTPHeader(state.FileData);
if (hTTPHeader != null)
{
byte[] numArray = new byte[hTTPHeader.ContentLength];
Array.Copy(state.FileData, hTTPHeader.ContentStart, numArray, 0, hTTPHeader.ContentLength);
if (LocalStorageAPI.ComputeSHA256(numArray) == state.CH.Sha256Digest)
{
flag = false;
LocalStorageAPI.DecompressStateIfPossible(state, numArray);
}
else
{
LocalStorageAPI.s_log.LogWarning("Integrity check failed for State={0}", new object[] { state });
}
}
else
{
LocalStorageAPI.s_log.LogWarning("Parsinig of HTTP header failed for State={0}", new object[] { state });
}
if (flag || state.FileData == null)
{
LocalStorageAPI.ExecuteFailedDownload(state);
}
else
{
LocalStorageAPI.ExecuteSucessfulDownload(state);
}
}
private static void FinalizeState(LocalStorageFileState state)
{
List <LocalStorageFileState> completedDownloads = LocalStorageAPI.m_completedDownloads;
lock (completedDownloads)
{
LocalStorageAPI.m_completedDownloads.Add(state);
}
}
private void DownloadFromDepot(LocalStorageFileState state)
{
string str = string.Format("{0}.depot.battle.net", state.CH.Region);
LocalStorageAPI.s_log.LogDebug("Starting download from {0}", new object[] { str });
state.Connection.LogDebug = new Action <string>(LocalStorageAPI.s_log.LogDebug);
state.Connection.LogWarning = new Action <string>(LocalStorageAPI.s_log.LogWarning);
state.Connection.OnFailure = () => LocalStorageAPI.ExecuteFailedDownload(state);
state.Connection.OnSuccess = () => LocalStorageAPI.ConnectCallback(state);
state.Connection.Connect(str, this.DepotPort);
}
private static void FinalizeState(LocalStorageFileState state)
{
object mCompletedDownloads = LocalStorageAPI.m_completedDownloads;
Monitor.Enter(mCompletedDownloads);
try
{
LocalStorageAPI.m_completedDownloads.Add(state);
}
finally
{
Monitor.Exit(mCompletedDownloads);
}
}
private static void DecompressStateIfPossible(LocalStorageFileState state, byte[] data)
{
ulong num;
if (!LocalStorageAPI.IsCompressedStream(data, out num))
{
state.FileData = data;
}
else
{
state.CompressedData = data;
MemoryStream memoryStream = new MemoryStream(data, 16, (int)data.Length - 16);
state.FileData = LocalStorageAPI.Inflate(memoryStream, (int)num);
}
}
private bool LoadStateFromDrive(LocalStorageFileState state)
{
try
{
LocalStorageAPI.s_log.LogDebug("LoadState State={0}", new object[]
{
state
});
string text = LocalStorageAPI.MakeFullPathFromState(state);
LocalStorageAPI.s_log.LogDebug("Attempting to load {0}", new object[]
{
text
});
if (!File.Exists(text))
{
LocalStorageAPI.s_log.LogDebug("File does not exist, unable to load from disk.");
bool result = false;
return(result);
}
FileStream fileStream = File.OpenRead(text);
byte[] array = new byte[fileStream.get_Length()];
fileStream.Read(array, 0, array.Length);
fileStream.Close();
if (LocalStorageAPI.ComputeSHA256(array) != state.CH.Sha256Digest)
{
LocalStorageAPI.s_log.LogDebug("File was loaded but integrity check failed, attempting to delete ...");
File.Delete(text);
bool result = false;
return(result);
}
LocalStorageAPI.DecompressStateIfPossible(state, array);
LocalStorageAPI.s_log.LogDebug("Loading completed");
LocalStorageAPI.FinalizeState(state);
}
catch (Exception ex)
{
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[]
{
ex.get_Message()
});
bool result = false;
return(result);
}
return(true);
}
private bool LoadStateFromDrive(LocalStorageFileState state)
{
bool flag;
try
{
LocalStorageAPI.s_log.LogDebug("LoadState State={0}", new object[] { state });
string str = LocalStorageAPI.MakeFullPathFromState(state);
LocalStorageAPI.s_log.LogDebug("Attempting to load {0}", new object[] { str });
if (File.Exists(str))
{
FileStream fileStream = File.OpenRead(str);
byte[] numArray = new byte[checked ((IntPtr)fileStream.Length)];
fileStream.Read(numArray, 0, (int)numArray.Length);
fileStream.Close();
if (LocalStorageAPI.ComputeSHA256(numArray) == state.CH.Sha256Digest)
{
LocalStorageAPI.DecompressStateIfPossible(state, numArray);
LocalStorageAPI.s_log.LogDebug("Loading completed");
LocalStorageAPI.FinalizeState(state);
return(true);
}
else
{
LocalStorageAPI.s_log.LogDebug("File was loaded but integrity check failed, attempting to delete ...");
File.Delete(str);
flag = false;
}
}
else
{
LocalStorageAPI.s_log.LogDebug("File does not exist, unable to load from disk.");
flag = false;
}
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[] { exception.Message });
flag = false;
}
return(flag);
}
private static void ConnectCallback(LocalStorageFileState state)
{
try
{
LocalStorageAPI.s_log.LogDebug("ConnectCallback called for State={0}", new object[] { state });
state.ReceiveBuffer = new byte[LocalStorageAPI.m_bufferSize];
state.Socket.BeginReceive(state.ReceiveBuffer, 0, LocalStorageAPI.m_bufferSize, SocketFlags.None, new AsyncCallback(LocalStorageAPI.ReceiveCallback), state);
string str = string.Format("GET /{0}.{1} HTTP/1.1\r\n", state.CH.Sha256Digest, state.CH.Usage);
str = string.Concat(str, "Host: ", state.Connection.Host, "\r\n");
str = string.Concat(str, "User-Agent: HearthStone\r\n");
str = string.Concat(str, "Connection: close\r\n");
str = string.Concat(str, "\r\n");
byte[] bytes = Encoding.ASCII.GetBytes(str);
state.Socket.Send(bytes, 0, (int)bytes.Length, SocketFlags.None);
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[] { exception.Message });
}
}
private static void ReceiveCallback(IAsyncResult ar)
{
LocalStorageFileState localStorageFileState = (LocalStorageFileState)ar.get_AsyncState();
try
{
LocalStorageAPI.s_log.LogDebug("ReceiveCallback called for State={0}", new object[]
{
localStorageFileState
});
int num = localStorageFileState.Socket.EndReceive(ar);
if (num > 0)
{
int num2 = (localStorageFileState.FileData != null) ? localStorageFileState.FileData.Length : 0;
int num3 = num2 + num;
MemoryStream memoryStream = new MemoryStream(new byte[num3], 0, num3, true, true);
if (localStorageFileState.FileData != null)
{
memoryStream.Write(localStorageFileState.FileData, 0, localStorageFileState.FileData.Length);
}
memoryStream.Write(localStorageFileState.ReceiveBuffer, 0, num);
localStorageFileState.FileData = memoryStream.GetBuffer();
localStorageFileState.Socket.BeginReceive(localStorageFileState.ReceiveBuffer, 0, LocalStorageAPI.m_bufferSize, 0, new AsyncCallback(LocalStorageAPI.ReceiveCallback), localStorageFileState);
}
else
{
LocalStorageAPI.CompleteDownload(localStorageFileState);
}
}
catch (Exception ex)
{
LocalStorageAPI.s_log.LogWarning("EXCEPTION: {0}", new object[]
{
ex.get_Message()
});
localStorageFileState.FailureMessage = ex.get_Message();
LocalStorageAPI.ExecuteFailedDownload(localStorageFileState);
}
}
private static void ExecuteFailedDownload(LocalStorageFileState state)
{
state.FileData = null;
LocalStorageAPI.FinalizeDownload(state);
}
private static void ExecuteSucessfulDownload(LocalStorageFileState state)
{
LocalStorageAPI.StoreStateToDrive(state);
LocalStorageAPI.FinalizeDownload(state);
}
private static void FinalizeDownload(LocalStorageFileState state)
{
state.Connection.Disconnect();
state.ReceiveBuffer = null;
LocalStorageAPI.FinalizeState(state);
}