private static void ClearImpl(object param)
{
try
{
string[] files = Directory.GetFiles(HTTPCacheService.CacheFolder);
for (int i = 0; i < files.Length; i++)
{
try
{
string fileName = Path.GetFileName(files[i]);
HTTPCacheService.DeleteEntity(HTTPCacheService.GetUriFromFileName(fileName), true);
}
catch
{
}
}
}
finally
{
HTTPCacheService.SaveLibrary();
HTTPCacheService.InClearThread = false;
}
}
private static void DeleteUnusedFiles()
{
HTTPCacheService.CheckSetup();
string[] files = Directory.GetFiles(HTTPCacheService.CacheFolder);
for (int i = 0; i < files.Length; i++)
{
try
{
string fileName = Path.GetFileName(files[i]);
Uri uriFromFileName = HTTPCacheService.GetUriFromFileName(fileName);
Dictionary <Uri, HTTPCacheFileInfo> obj = HTTPCacheService.Library;
lock (obj)
{
if (!HTTPCacheService.Library.ContainsKey(uriFromFileName))
{
File.Delete(files[i]);
}
}
}
catch
{
}
}
}
internal static Stream PrepareStreamed(Uri uri, HTTPResponse response)
{
Dictionary <Uri, HTTPCacheFileInfo> obj = HTTPCacheService.Library;
Stream saveStream;
lock (obj)
{
HTTPCacheFileInfo hTTPCacheFileInfo;
if (!HTTPCacheService.Library.TryGetValue(uri, out hTTPCacheFileInfo))
{
HTTPCacheService.Library.Add(uri, hTTPCacheFileInfo = new HTTPCacheFileInfo(uri));
}
try
{
saveStream = hTTPCacheFileInfo.GetSaveStream(response);
}
catch
{
HTTPCacheService.DeleteEntity(uri, true);
throw;
}
}
return(saveStream);
}
private static void LoadLibrary()
{
if (HTTPCacheService.library != null)
{
return;
}
HTTPCacheService.library = new Dictionary <Uri, HTTPCacheFileInfo>();
if (!File.Exists(HTTPCacheService.LibraryPath))
{
HTTPCacheService.DeleteUnusedFiles();
return;
}
try
{
Dictionary <Uri, HTTPCacheFileInfo> obj = HTTPCacheService.library;
lock (obj)
{
using (FileStream fileStream = new FileStream(HTTPCacheService.LibraryPath, FileMode.Open))
{
using (BinaryReader binaryReader = new BinaryReader(fileStream))
{
int version = binaryReader.ReadInt32();
int num = binaryReader.ReadInt32();
for (int i = 0; i < num; i++)
{
Uri uri = new Uri(binaryReader.ReadString());
bool flag = File.Exists(Path.Combine(HTTPCacheService.CacheFolder, HTTPCacheService.GetFileNameFromUri(uri)));
if (flag)
{
HTTPCacheService.library.Add(uri, new HTTPCacheFileInfo(uri, binaryReader, version));
}
}
}
}
}
HTTPCacheService.DeleteUnusedFiles();
}
catch
{
}
}
public static void BeginMaintainence(HTTPCacheMaintananceParams maintananceParam)
{
if (maintananceParam == null)
{
throw new ArgumentNullException("maintananceParams == null");
}
if (HTTPCacheService.InMaintainenceThread)
{
return;
}
HTTPCacheService.InMaintainenceThread = true;
HTTPCacheService.SetupCacheFolder();
new Thread(delegate(object param)
{
try
{
Dictionary <Uri, HTTPCacheFileInfo> obj = HTTPCacheService.Library;
lock (obj)
{
DateTime t = DateTime.UtcNow - maintananceParam.DeleteOlder;
List <Uri> list = new List <Uri>();
foreach (KeyValuePair <Uri, HTTPCacheFileInfo> current in HTTPCacheService.Library)
{
if (current.Value.LastAccess < t && HTTPCacheService.DeleteEntity(current.Key, false))
{
list.Add(current.Key);
}
}
for (int i = 0; i < list.Count; i++)
{
HTTPCacheService.Library.Remove(list[i]);
}
list.Clear();
ulong num = HTTPCacheService.GetCacheSize();
if (num > maintananceParam.MaxCacheSize)
{
List <HTTPCacheFileInfo> list2 = new List <HTTPCacheFileInfo>(HTTPCacheService.library.Count);
foreach (KeyValuePair <Uri, HTTPCacheFileInfo> current2 in HTTPCacheService.library)
{
list2.Add(current2.Value);
}
list2.Sort();
int num2 = 0;
while (num >= maintananceParam.MaxCacheSize && num2 < list2.Count)
{
try
{
HTTPCacheFileInfo hTTPCacheFileInfo = list2[num2];
ulong num3 = (ulong)((long)hTTPCacheFileInfo.BodyLength);
HTTPCacheService.DeleteEntity(hTTPCacheFileInfo.Uri, true);
num -= num3;
}
catch
{
}
finally
{
num2++;
}
}
}
}
}
finally
{
HTTPCacheService.SaveLibrary();
HTTPCacheService.InMaintainenceThread = false;
}
}).Start();
}