internal void ProcessRequest(ResourceSession rpResourceSession, Session rpSession)
{
if (CurrentMode == CacheMode.Disabled)
{
return;
}
string rFilename;
var rNoVerification = CheckFileInCache(rpResourceSession.Path, out rFilename);
rpResourceSession.CacheFilename = rFilename;
if (rNoVerification == null)
{
return;
}
if (!rNoVerification.Value)
{
var rTimestamp = new DateTimeOffset(File.GetLastWriteTime(rFilename));
if (rpResourceSession.Path.OICContains("mainD2.swf") || rpResourceSession.Path.OICContains(".js") || !CheckFileVersionAndTimestamp(rpResourceSession, rTimestamp))
{
rpSession.oRequest["If-Modified-Since"] = rTimestamp.ToString("R");
rpSession.bBufferResponse = true;
return;
}
}
rpSession.utilCreateResponseAndBypassServer();
LoadFile(rFilename, rpResourceSession, rpSession);
}
void LoadFile(string rpFilename, ResourceSession rpResourceSession, Session rpSession)
{
rpSession.ResponseBody = File.ReadAllBytes(rpFilename);
rpSession.oResponse["Server"] = "Apache";
rpSession.oResponse["Connection"] = "close";
rpSession.oResponse["Accept-Ranges"] = "bytes";
rpSession.oResponse["Cache-Control"] = "max-age=18000, public";
rpSession.oResponse["Date"] = DateTime.Now.ToString("R");
if (rpFilename.EndsWith(".swf", StringComparison.OrdinalIgnoreCase))
{
rpSession.oResponse["Content-Type"] = "application/x-shockwave-flash";
}
else if (rpFilename.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase))
{
rpSession.oResponse["Content-Type"] = "audio/mpeg";
}
else if (rpFilename.EndsWith(".png", StringComparison.OrdinalIgnoreCase))
{
rpSession.oResponse["Content-Type"] = "image/png";
}
else if (rpFilename.EndsWith(".css", StringComparison.OrdinalIgnoreCase))
{
rpSession.oResponse["Content-Type"] = "text/css";
}
else if (rpFilename.EndsWith(".js", StringComparison.OrdinalIgnoreCase))
{
rpSession.oResponse["Content-Type"] = "application/x-javascript";
}
rpSession.responseCode = 200;
rpResourceSession.State = NetworkSessionState.LoadedFromCache;
}
bool CheckFileVersionAndTimestamp(ResourceSession rpResourceSession, DateTimeOffset rpTimestamp)
{
using (var rCommand = r_Connection.CreateCommand())
{
rCommand.CommandText = "SELECT (CASE WHEN version IS NOT NULL THEN version ELSE '' END) = @version AND timestamp = @timestamp FROM cache.file WHERE name = @name;";
rCommand.Parameters.AddWithValue("@name", rpResourceSession.Path);
rCommand.Parameters.AddWithValue("@version", rpResourceSession.CacheVersion ?? string.Empty);
rCommand.Parameters.AddWithValue("@timestamp", rpTimestamp.ToUnixTime());
return(Convert.ToBoolean(rCommand.ExecuteScalar()));
}
}
internal void ProcessResponse(ResourceSession rpResourceSession, Session rpSession)
{
if (rpSession.responseCode != 304 || !rpResourceSession.Path.OICContains("mainD2.swf") && CurrentMode != CacheMode.VerifyVersion)
{
return;
}
LoadFile(rpResourceSession.CacheFilename, rpResourceSession, rpSession);
RecordCachedFile(rpResourceSession, File.GetLastWriteTime(rpResourceSession.CacheFilename), false);
rpResourceSession.State = NetworkSessionState.LoadedFromCache;
}
internal void ProcessOnCompletion(ResourceSession rpResourceSession, Session rpSession)
{
if (rpSession.responseCode != 200 || rpResourceSession.State == NetworkSessionState.LoadedFromCache || rpResourceSession.CacheFilename == null ||
Convert.ToInt32(rpSession.ResponseHeaders["Content-Length"]) != rpSession.ResponseBody.Length)
{
return;
}
try
{
lock (r_ThreadSyncObject)
{
var rLastModified = rpSession.oResponse["Last-Modified"];
if (rLastModified.IsNullOrEmpty())
{
return;
}
var rDirectoryName = Path.GetDirectoryName(rpResourceSession.CacheFilename);
if (!Directory.Exists(rDirectoryName))
{
Directory.CreateDirectory(rDirectoryName);
}
var rFile = new FileInfo(rpResourceSession.CacheFilename);
if (rFile.Exists)
{
rFile.Delete();
}
rpSession.SaveResponseBody(rFile.FullName);
var rTimestamp = Convert.ToDateTime(rLastModified);
rFile.LastWriteTime = rTimestamp;
rpResourceSession.State = NetworkSessionState.Cached;
RecordCachedFile(rpResourceSession, rTimestamp, true);
}
}
catch (Exception e)
{
Logger.Write(LoggingLevel.Error, string.Format(StringResources.Instance.Main.Log_Exception_Cache_FailedToSaveFile, e.Message));
}
}
void RecordCachedFile(ResourceSession rpResourceSession, DateTime rpTimestamp, bool rpReplace)
{
using (var rCommand = r_Connection.CreateCommand())
{
if (rpReplace)
{
rCommand.CommandText = "REPLACE INTO cache.file(name, version, timestamp) VALUES(@name, @version, @timestamp);";
}
else
{
rCommand.CommandText = "INSERT OR IGNORE INTO cache.file(name, version, timestamp) VALUES(@name, @version, @timestamp);";
}
rCommand.Parameters.AddWithValue("@name", rpResourceSession.Path);
rCommand.Parameters.AddWithValue("@version", rpResourceSession.CacheVersion);
rCommand.Parameters.AddWithValue("@timestamp", new DateTimeOffset(rpTimestamp).ToUnixTime());
rCommand.ExecuteNonQuery();
}
}
