internal void StopMonitoringPath(string alias, object target)
{
if (!this.IsFCNDisabled)
{
DirectoryMonitor directoryMonitor = null;
string fileNameLong = null;
if (alias == null)
{
throw new HttpException(System.Web.SR.GetString("Invalid_file_name_for_monitoring", new object[] { string.Empty }));
}
using (new ApplicationImpersonationContext())
{
this._lockDispose.AcquireReaderLock();
try
{
if (!this._disposed)
{
FileMonitor monitor = (FileMonitor)this._aliases[alias];
if (monitor != null)
{
directoryMonitor = monitor.DirectoryMonitor;
fileNameLong = monitor.FileNameLong;
}
else
{
if ((alias.Length == 0) || !UrlPath.IsAbsolutePhysicalPath(alias))
{
throw new HttpException(System.Web.SR.GetString("Invalid_file_name_for_monitoring", new object[] { HttpRuntime.GetSafePath(alias) }));
}
string fullPath = GetFullPath(alias);
directoryMonitor = this.FindDirectoryMonitor(fullPath, false, false);
if (directoryMonitor == null)
{
string directoryOrRootName = UrlPath.GetDirectoryOrRootName(fullPath);
fileNameLong = Path.GetFileName(fullPath);
if (!string.IsNullOrEmpty(fileNameLong))
{
directoryMonitor = this.FindDirectoryMonitor(directoryOrRootName, false, false);
}
}
}
if (directoryMonitor != null)
{
directoryMonitor.StopMonitoringFile(fileNameLong, target);
}
}
}
finally
{
this._lockDispose.ReleaseReaderLock();
}
}
}
}
internal void RemoveAliases(FileMonitor fileMon)
{
if (!this.IsFCNDisabled)
{
foreach (DictionaryEntry entry in fileMon.Aliases)
{
if (this._aliases[entry.Key] == fileMon)
{
this._aliases.Remove(entry.Key);
}
}
}
}
internal void StopMonitoringFile(string file, object target)
{
lock (this)
{
FileMonitor fileMon = this.FindFileMonitor(file);
if ((fileMon != null) && (fileMon.RemoveTarget(target) == 0))
{
this.RemoveFileMonitor(fileMon);
if (this.GetFileMonitorsCount() == 0)
{
((IDisposable)this).Dispose();
}
}
}
}
internal bool GetFileAttributes(string file, out FileAttributesData fad)
{
FileMonitor monitor = null;
fad = null;
lock (this)
{
monitor = this.FindFileMonitor(file);
if (monitor != null)
{
fad = monitor.Attributes;
return(true);
}
}
return(false);
}
private FileMonitor AddFileMonitor(string file)
{
FileMonitor monitor;
FindFileData data = null;
int num;
if (string.IsNullOrEmpty(file))
{
monitor = new FileMonitor(this, null, null, true, null, null);
this._anyFileMon = monitor;
return(monitor);
}
string fullPath = Path.Combine(this.Directory, file);
if (this._isDirMonAppPathInternal)
{
num = FindFileData.FindFile(fullPath, this.Directory, out data);
}
else
{
num = FindFileData.FindFile(fullPath, out data);
}
if (num == 0)
{
if (!this._isDirMonAppPathInternal && ((data.FileAttributesData.FileAttributes & FileAttributes.Directory) != 0))
{
throw FileChangesMonitor.CreateFileMonitoringException(-2147024809, fullPath);
}
byte[] dacl = FileSecurity.GetDacl(fullPath);
monitor = new FileMonitor(this, data.FileNameLong, data.FileNameShort, true, data.FileAttributesData, dacl);
this._fileMons.Add(data.FileNameLong, monitor);
this.UpdateFileNameShort(monitor, null, data.FileNameShort);
return(monitor);
}
if ((num != -2147024893) && (num != -2147024894))
{
throw FileChangesMonitor.CreateFileMonitoringException(num, fullPath);
}
if (file.IndexOf('~') != -1)
{
throw FileChangesMonitor.CreateFileMonitoringException(-2147024809, fullPath);
}
monitor = new FileMonitor(this, file, null, false, null, null);
this._fileMons.Add(file, monitor);
return(monitor);
}
private void RemoveFileMonitor(FileMonitor fileMon)
{
if (fileMon == this._anyFileMon)
{
this._anyFileMon = null;
}
else
{
this._fileMons.Remove(fileMon.FileNameLong);
if (fileMon.FileNameShort != null)
{
this._fileMons.Remove(fileMon.FileNameShort);
this._cShortNames--;
}
}
HttpRuntime.FileChangesMonitor.RemoveAliases(fileMon);
}
private FileMonitor AddFileMonitor(string file)
{
FileMonitor monitor;
FindFileData data = null;
int num;
if (string.IsNullOrEmpty(file))
{
monitor = new FileMonitor(this, null, null, true, null, null);
this._anyFileMon = monitor;
return monitor;
}
string fullPath = Path.Combine(this.Directory, file);
if (this._isDirMonAppPathInternal)
{
num = FindFileData.FindFile(fullPath, this.Directory, out data);
}
else
{
num = FindFileData.FindFile(fullPath, out data);
}
if (num == 0)
{
if (!this._isDirMonAppPathInternal && ((data.FileAttributesData.FileAttributes & FileAttributes.Directory) != 0))
{
throw FileChangesMonitor.CreateFileMonitoringException(-2147024809, fullPath);
}
byte[] dacl = FileSecurity.GetDacl(fullPath);
monitor = new FileMonitor(this, data.FileNameLong, data.FileNameShort, true, data.FileAttributesData, dacl);
this._fileMons.Add(data.FileNameLong, monitor);
this.UpdateFileNameShort(monitor, null, data.FileNameShort);
return monitor;
}
if ((num != -2147024893) && (num != -2147024894))
{
throw FileChangesMonitor.CreateFileMonitoringException(num, fullPath);
}
if (file.IndexOf('~') != -1)
{
throw FileChangesMonitor.CreateFileMonitoringException(-2147024809, fullPath);
}
monitor = new FileMonitor(this, file, null, false, null, null);
this._fileMons.Add(file, monitor);
return monitor;
}
private void UpdateFileNameShort(FileMonitor fileMon, string oldFileNameShort, string newFileNameShort)
{
if (oldFileNameShort != null)
{
FileMonitor monitor = (FileMonitor)this._fileMons[oldFileNameShort];
if (monitor != null)
{
if (monitor != fileMon)
{
monitor.RemoveFileNameShort();
}
this._fileMons.Remove(oldFileNameShort);
this._cShortNames--;
}
}
if (newFileNameShort != null)
{
this._fileMons.Add(newFileNameShort, fileMon);
this._cShortNames++;
}
}
internal FileMonitor StartMonitoringFileWithAssert(string file, FileChangeEventHandler callback, string alias)
{
FileMonitor monitor = null;
bool flag = false;
lock (this)
{
monitor = this.FindFileMonitor(file);
if (monitor == null)
{
monitor = this.AddFileMonitor(file);
if (this.GetFileMonitorsCount() == 1)
{
flag = true;
}
}
monitor.AddTarget(callback, alias, true);
if (flag)
{
this.StartMonitoring();
}
}
return(monitor);
}
private bool GetFileMonitorForSpecialDirectory(string fileName, ref FileMonitor fileMon)
{
for (int i = 0; i < FileChangesMonitor.s_dirsToMonitor.Length; i++)
{
if (StringUtil.StringStartsWithIgnoreCase(fileName, FileChangesMonitor.s_dirsToMonitor[i]))
{
fileMon = (FileMonitor)this._fileMons[FileChangesMonitor.s_dirsToMonitor[i]];
return(fileMon != null);
}
}
int index = fileName.IndexOf("App_LocalResources", StringComparison.OrdinalIgnoreCase);
if (index > -1)
{
int length = index + "App_LocalResources".Length;
if ((fileName.Length == length) || (fileName[length] == Path.DirectorySeparatorChar))
{
string str = fileName.Substring(0, length);
fileMon = (FileMonitor)this._fileMons[str];
return(fileMon != null);
}
}
return(false);
}
void IDisposable.Dispose()
{
if (this._dirMonCompletion != null)
{
((IDisposable)this._dirMonCompletion).Dispose();
this._dirMonCompletion = null;
}
if (this._anyFileMon != null)
{
HttpRuntime.FileChangesMonitor.RemoveAliases(this._anyFileMon);
this._anyFileMon = null;
}
foreach (DictionaryEntry entry in this._fileMons)
{
string key = (string)entry.Key;
FileMonitor fileMon = (FileMonitor)entry.Value;
if (fileMon.FileNameLong == key)
{
HttpRuntime.FileChangesMonitor.RemoveAliases(fileMon);
}
}
this._fileMons.Clear();
this._cShortNames = 0;
}
private void RemoveFileMonitor(FileMonitor fileMon)
{
if (fileMon == this._anyFileMon)
{
this._anyFileMon = null;
}
else
{
this._fileMons.Remove(fileMon.FileNameLong);
if (fileMon.FileNameShort != null)
{
this._fileMons.Remove(fileMon.FileNameShort);
this._cShortNames--;
}
}
HttpRuntime.FileChangesMonitor.RemoveAliases(fileMon);
}
private bool GetFileMonitorForSpecialDirectory(string fileName, ref FileMonitor fileMon)
{
for (int i = 0; i < FileChangesMonitor.s_dirsToMonitor.Length; i++)
{
if (StringUtil.StringStartsWithIgnoreCase(fileName, FileChangesMonitor.s_dirsToMonitor[i]))
{
fileMon = (FileMonitor) this._fileMons[FileChangesMonitor.s_dirsToMonitor[i]];
return (fileMon != null);
}
}
int index = fileName.IndexOf("App_LocalResources", StringComparison.OrdinalIgnoreCase);
if (index > -1)
{
int length = index + "App_LocalResources".Length;
if ((fileName.Length == length) || (fileName[length] == Path.DirectorySeparatorChar))
{
string str = fileName.Substring(0, length);
fileMon = (FileMonitor) this._fileMons[str];
return (fileMon != null);
}
}
return false;
}
internal void RemoveAliases(FileMonitor fileMon)
{
if (!this.IsFCNDisabled)
{
foreach (DictionaryEntry entry in fileMon.Aliases)
{
if (this._aliases[entry.Key] == fileMon)
{
this._aliases.Remove(entry.Key);
}
}
}
}
internal void OnFileChange(FileAction action, string fileName, DateTime utcCompletion)
{
try
{
FileMonitor fileMon = null;
ArrayList list = null;
FileAttributesData attributes = null;
FileAttributesData fad = null;
byte[] dacl = null;
byte[] buffer2 = null;
FileAction error = FileAction.Error;
DateTime minValue = DateTime.MinValue;
bool fileMonitorForSpecialDirectory = false;
if (this._dirMonCompletion != null)
{
lock (this)
{
ICollection targets;
if (this._fileMons.Count > 0)
{
if ((action == FileAction.Error) || (action == FileAction.Overwhelming))
{
if (action == FileAction.Overwhelming)
{
HttpRuntime.SetShutdownMessage("Overwhelming Change Notification in " + this.Directory);
if (Interlocked.Increment(ref s_notificationBufferSizeIncreased) == 1)
{
System.Web.UnsafeNativeMethods.GrowFileNotificationBuffer(HttpRuntime.AppDomainAppIdInternal, this._watchSubtree);
}
}
else if (action == FileAction.Error)
{
HttpRuntime.SetShutdownMessage("File Change Notification Error in " + this.Directory);
}
list = new ArrayList();
foreach (DictionaryEntry entry in this._fileMons)
{
string key = (string)entry.Key;
fileMon = (FileMonitor)entry.Value;
if ((fileMon.FileNameLong == key) && fileMon.Exists)
{
fileMon.ResetCachedAttributes();
fileMon.LastAction = action;
fileMon.UtcLastCompletion = utcCompletion;
targets = fileMon.Targets;
list.AddRange(targets);
}
}
fileMon = null;
}
else
{
fileMon = (FileMonitor)this._fileMons[fileName];
if (this._isDirMonAppPathInternal && (fileMon == null))
{
fileMonitorForSpecialDirectory = this.GetFileMonitorForSpecialDirectory(fileName, ref fileMon);
}
if (fileMon != null)
{
list = new ArrayList(fileMon.Targets);
attributes = fileMon.Attributes;
dacl = fileMon.Dacl;
error = fileMon.LastAction;
minValue = fileMon.UtcLastCompletion;
fileMon.LastAction = action;
fileMon.UtcLastCompletion = utcCompletion;
if ((action == FileAction.Removed) || (action == FileAction.RenamedOldName))
{
fileMon.MakeExtinct();
}
else if (fileMon.Exists)
{
if (minValue != utcCompletion)
{
fileMon.UpdateCachedAttributes();
}
}
else
{
int num3;
FindFileData data = null;
string fullPath = Path.Combine(this.Directory, fileMon.FileNameLong);
if (this._isDirMonAppPathInternal)
{
num3 = FindFileData.FindFile(fullPath, this.Directory, out data);
}
else
{
num3 = FindFileData.FindFile(fullPath, out data);
}
if (num3 == 0)
{
string fileNameShort = fileMon.FileNameShort;
byte[] buffer3 = FileSecurity.GetDacl(fullPath);
fileMon.MakeExist(data, buffer3);
this.UpdateFileNameShort(fileMon, fileNameShort, data.FileNameShort);
}
}
fad = fileMon.Attributes;
buffer2 = fileMon.Dacl;
}
}
}
if (this._anyFileMon != null)
{
targets = this._anyFileMon.Targets;
if (list != null)
{
list.AddRange(targets);
}
else
{
list = new ArrayList(targets);
}
}
if ((action == FileAction.Error) || (action == FileAction.Overwhelming))
{
((IDisposable)this).Dispose();
}
}
bool flag2 = false;
if ((!fileMonitorForSpecialDirectory && (fileName != null)) && (action == FileAction.Modified))
{
FileAttributesData data4 = fad;
if (data4 == null)
{
FileAttributesData.GetFileAttributes(Path.Combine(this.Directory, fileName), out data4);
}
if ((data4 != null) && ((data4.FileAttributes & FileAttributes.Directory) != 0))
{
flag2 = true;
}
}
if ((this._ignoreSubdirChange && ((action == FileAction.Removed) || (action == FileAction.RenamedOldName))) && (fileName != null))
{
string str5 = Path.Combine(this.Directory, fileName);
if (!HttpRuntime.FileChangesMonitor.IsDirNameMonitored(str5, fileName))
{
flag2 = true;
}
}
if ((list != null) && !flag2)
{
lock (s_notificationQueue.SyncRoot)
{
int num = 0;
int count = list.Count;
while (num < count)
{
bool flag3;
FileMonitorTarget target = (FileMonitorTarget)list[num];
if (((action != FileAction.Added) && (action != FileAction.Modified)) || (fad == null))
{
flag3 = true;
}
else if (action == FileAction.Added)
{
flag3 = this.IsChangeAfterStartMonitoring(fad, target, utcCompletion);
}
else if (utcCompletion == minValue)
{
flag3 = error != FileAction.Modified;
}
else if (attributes == null)
{
flag3 = true;
}
else if ((dacl == null) || (dacl != buffer2))
{
flag3 = true;
}
else
{
flag3 = this.IsChangeAfterStartMonitoring(fad, target, utcCompletion);
}
if (flag3)
{
s_notificationQueue.Enqueue(new NotificationQueueItem(target.Callback, action, target.Alias));
}
num++;
}
}
if (((s_notificationQueue.Count > 0) && (s_inNotificationThread == 0)) && (Interlocked.Exchange(ref s_inNotificationThread, 1) == 0))
{
WorkItem.PostInternal(s_notificationCallback);
}
}
}
}
catch (Exception)
{
}
}
internal DateTime StartMonitoringPath(string alias, FileChangeEventHandler callback, out FileAttributesData fad)
{
FileMonitor monitor = null;
DirectoryMonitor monitor2 = null;
string fullPath;
string file = null;
bool flag = false;
fad = null;
if (alias == null)
{
throw new HttpException(System.Web.SR.GetString("Invalid_file_name_for_monitoring", new object[] { string.Empty }));
}
if (this.IsFCNDisabled)
{
fullPath = GetFullPath(alias);
FindFileData data = null;
if (FindFileData.FindFile(fullPath, out data) == 0)
{
fad = data.FileAttributesData;
return(data.FileAttributesData.UtcLastWriteTime);
}
return(DateTime.MinValue);
}
using (new ApplicationImpersonationContext())
{
this._lockDispose.AcquireReaderLock();
try
{
if (this._disposed)
{
return(DateTime.MinValue);
}
monitor = (FileMonitor)this._aliases[alias];
if (monitor != null)
{
file = monitor.FileNameLong;
monitor = monitor.DirectoryMonitor.StartMonitoringFileWithAssert(file, callback, alias);
}
else
{
flag = true;
if ((alias.Length == 0) || !UrlPath.IsAbsolutePhysicalPath(alias))
{
throw new HttpException(System.Web.SR.GetString("Invalid_file_name_for_monitoring", new object[] { HttpRuntime.GetSafePath(alias) }));
}
fullPath = GetFullPath(alias);
if (this.IsBeneathAppPathInternal(fullPath))
{
monitor2 = this._dirMonAppPathInternal;
file = fullPath.Substring(this._appPathInternal.Length + 1);
monitor = monitor2.StartMonitoringFileWithAssert(file, callback, alias);
}
else
{
monitor2 = this.FindDirectoryMonitor(fullPath, false, false);
if (monitor2 != null)
{
monitor = monitor2.StartMonitoringFileWithAssert(null, callback, alias);
}
else
{
string directoryOrRootName = UrlPath.GetDirectoryOrRootName(fullPath);
file = Path.GetFileName(fullPath);
if (!string.IsNullOrEmpty(file))
{
monitor2 = this.FindDirectoryMonitor(directoryOrRootName, false, false);
if (monitor2 != null)
{
try
{
monitor = monitor2.StartMonitoringFileWithAssert(file, callback, alias);
}
catch
{
}
if (monitor != null)
{
goto Label_01C7;
}
}
}
monitor2 = this.FindDirectoryMonitor(fullPath, true, false);
if (monitor2 != null)
{
file = null;
}
else
{
if (string.IsNullOrEmpty(file))
{
throw CreateFileMonitoringException(-2147024809, alias);
}
monitor2 = this.FindDirectoryMonitor(directoryOrRootName, true, true);
}
monitor = monitor2.StartMonitoringFileWithAssert(file, callback, alias);
}
}
}
Label_01C7:
if (!monitor.IsDirectory)
{
monitor.DirectoryMonitor.GetFileAttributes(file, out fad);
}
if (flag)
{
this._aliases[alias] = monitor;
}
}
finally
{
this._lockDispose.ReleaseReaderLock();
}
if (fad != null)
{
return(fad.UtcLastWriteTime);
}
return(DateTime.MinValue);
}
}
void IDisposable.Dispose()
{
if (this._dirMonCompletion != null)
{
((IDisposable) this._dirMonCompletion).Dispose();
this._dirMonCompletion = null;
}
if (this._anyFileMon != null)
{
HttpRuntime.FileChangesMonitor.RemoveAliases(this._anyFileMon);
this._anyFileMon = null;
}
foreach (DictionaryEntry entry in this._fileMons)
{
string key = (string) entry.Key;
FileMonitor fileMon = (FileMonitor) entry.Value;
if (fileMon.FileNameLong == key)
{
HttpRuntime.FileChangesMonitor.RemoveAliases(fileMon);
}
}
this._fileMons.Clear();
this._cShortNames = 0;
}
private void UpdateFileNameShort(FileMonitor fileMon, string oldFileNameShort, string newFileNameShort)
{
if (oldFileNameShort != null)
{
FileMonitor monitor = (FileMonitor) this._fileMons[oldFileNameShort];
if (monitor != null)
{
if (monitor != fileMon)
{
monitor.RemoveFileNameShort();
}
this._fileMons.Remove(oldFileNameShort);
this._cShortNames--;
}
}
if (newFileNameShort != null)
{
this._fileMons.Add(newFileNameShort, fileMon);
this._cShortNames++;
}
}
internal FileAttributesData GetFileAttributes(string alias)
{
DirectoryMonitor directoryMonitor = null;
string fullPath;
string file = null;
FileAttributesData fad = null;
if (alias == null)
{
throw CreateFileMonitoringException(-2147024809, alias);
}
if (this.IsFCNDisabled)
{
if ((alias.Length == 0) || !UrlPath.IsAbsolutePhysicalPath(alias))
{
throw CreateFileMonitoringException(-2147024809, alias);
}
fullPath = GetFullPath(alias);
FindFileData data = null;
if (FindFileData.FindFile(fullPath, out data) == 0)
{
return(data.FileAttributesData);
}
return(null);
}
using (new ApplicationImpersonationContext())
{
this._lockDispose.AcquireReaderLock();
try
{
if (!this._disposed)
{
FileMonitor monitor = (FileMonitor)this._aliases[alias];
if ((monitor != null) && !monitor.IsDirectory)
{
directoryMonitor = monitor.DirectoryMonitor;
file = monitor.FileNameLong;
}
else
{
if ((alias.Length == 0) || !UrlPath.IsAbsolutePhysicalPath(alias))
{
throw CreateFileMonitoringException(-2147024809, alias);
}
fullPath = GetFullPath(alias);
string directoryOrRootName = UrlPath.GetDirectoryOrRootName(fullPath);
file = Path.GetFileName(fullPath);
if ((file != null) || (file.Length > 0))
{
directoryMonitor = this.FindDirectoryMonitor(directoryOrRootName, false, false);
}
}
}
}
finally
{
this._lockDispose.ReleaseReaderLock();
}
if ((directoryMonitor == null) || !directoryMonitor.GetFileAttributes(file, out fad))
{
FileAttributesData.GetFileAttributes(alias, out fad);
}
return(fad);
}
}