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 HTTPHeader ParseHTTPHeader(byte[] data)
{
try
{
int num = LocalStorageAPI.SearchForBytePattern(data, new byte[]
{
13,
10,
13,
10
});
HTTPHeader result;
if (num == -1)
{
result = null;
return(result);
}
int num2 = num + 1;
if (num2 >= data.Length)
{
result = null;
return(result);
}
string @string = Encoding.get_ASCII().GetString(data, 0, num);
if (@string.IndexOf("200 OK") == -1)
{
result = null;
return(result);
}
Regex regex = new Regex("(?<=Content-Length:\\s)\\d+", 1);
Match match = regex.Match(@string);
if (!match.get_Success())
{
result = null;
return(result);
}
int num3 = (int)uint.Parse(match.get_Value());
int num4 = data.Length - num2;
if (num3 != num4)
{
result = null;
return(result);
}
result = new HTTPHeader
{
ContentLength = num3,
ContentStart = num2
};
return(result);
}
catch (Exception ex)
{
LocalStorageAPI.s_log.LogWarning("EXCEPTION (ParseHTTPHeader): {0}", new object[]
{
ex.get_Message()
});
}
return(null);
}
private static HTTPHeader ParseHTTPHeader(byte[] data)
{
HTTPHeader hTTPHeader;
try
{
int num = LocalStorageAPI.SearchForBytePattern(data, new byte[] { 13, 10, 13, 10 });
if (num != -1)
{
int num1 = num + 1;
if (num1 < (int)data.Length)
{
string str = Encoding.ASCII.GetString(data, 0, num);
if (str.IndexOf("200 OK") != -1)
{
Match match = (new Regex("(?<=Content-Length:\\s)\\d+", RegexOptions.IgnoreCase)).Match(str);
if (match.Success)
{
int num2 = (int)uint.Parse(match.Value);
if (num2 == (int)data.Length - num1)
{
HTTPHeader hTTPHeader1 = new HTTPHeader()
{
ContentLength = num2,
ContentStart = num1
};
hTTPHeader = hTTPHeader1;
}
else
{
hTTPHeader = null;
}
}
else
{
hTTPHeader = null;
}
}
else
{
hTTPHeader = null;
}
}
else
{
hTTPHeader = null;
}
}
else
{
hTTPHeader = null;
}
}
catch (Exception exception1)
{
Exception exception = exception1;
LocalStorageAPI.s_log.LogWarning("EXCEPTION (ParseHTTPHeader): {0}", new object[] { exception.Message });
return(null);
}
return(hTTPHeader);
}