internal static byte[] GetDacl(string filename)
{
int lengthNeeded = 0;
int num2 = UnsafeNativeMethods.GetFileSecurity(filename, 7, null, 0, ref lengthNeeded);
int lastError = Marshal.GetLastWin32Error();
if (num2 != 0)
{
return(s_nullDacl);
}
if (HttpException.HResultFromLastError(lastError) != -2147024774)
{
return(null);
}
byte[] securityDescriptor = new byte[lengthNeeded];
if (UnsafeNativeMethods.GetFileSecurity(filename, 7, securityDescriptor, securityDescriptor.Length, ref lengthNeeded) == 0)
{
return(null);
}
byte[] buffer2 = (byte[])s_interned[securityDescriptor];
if (buffer2 == null)
{
lock (s_interned.SyncRoot)
{
buffer2 = (byte[])s_interned[securityDescriptor];
if (buffer2 == null)
{
buffer2 = securityDescriptor;
s_interned[buffer2] = buffer2;
}
}
}
return(buffer2);
}
internal static SafeStringResource ReadSafeStringResource(Type t)
{
if (HttpRuntime.CodegenDirInternal != null)
{
InternalSecurityPermissions.PathDiscovery(HttpRuntime.CodegenDirInternal).Assert();
}
IntPtr moduleHandle = UnsafeNativeMethods.GetModuleHandle(t.Module.FullyQualifiedName);
if (moduleHandle == IntPtr.Zero)
{
moduleHandle = Marshal.GetHINSTANCE(t.Module);
if (moduleHandle == IntPtr.Zero)
{
throw new HttpException(System.Web.SR.GetString("Resource_problem", new object[] { "GetModuleHandle", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture) }));
}
}
IntPtr hResInfo = UnsafeNativeMethods.FindResource(moduleHandle, (IntPtr)0x65, (IntPtr)0xebb);
if (hResInfo == IntPtr.Zero)
{
throw new HttpException(System.Web.SR.GetString("Resource_problem", new object[] { "FindResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture) }));
}
int size = UnsafeNativeMethods.SizeofResource(moduleHandle, hResInfo);
IntPtr hResData = UnsafeNativeMethods.LoadResource(moduleHandle, hResInfo);
if (hResData == IntPtr.Zero)
{
throw new HttpException(System.Web.SR.GetString("Resource_problem", new object[] { "LoadResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture) }));
}
IntPtr ip = UnsafeNativeMethods.LockResource(hResData);
if (ip == IntPtr.Zero)
{
throw new HttpException(System.Web.SR.GetString("Resource_problem", new object[] { "LockResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture) }));
}
if (!UnsafeNativeMethods.IsValidResource(moduleHandle, ip, size))
{
throw new InvalidOperationException();
}
return(new SafeStringResource(ip, size));
}
internal static SafeStringResource ReadSafeStringResource(Type t)
{
// Module.FullyQualifiedName was changed to check for FileIOPermission regardless of the name being an existing file or not.
// we need to Assert in order to succeed the Demand() (ASURT 121603)
(InternalSecurityPermissions.PathDiscovery(HttpRuntime.CodegenDirInternal)).Assert();
string dllPath = t.Module.FullyQualifiedName;
IntPtr hModule = UnsafeNativeMethods.GetModuleHandle(dllPath);
if (hModule == (IntPtr)0)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Resource_problem,
"GetModuleHandle", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString()));
}
IntPtr hrsrc = UnsafeNativeMethods.FindResource(hModule, (IntPtr)RESOURCE_ID, (IntPtr)RESOURCE_TYPE);
if (hrsrc == (IntPtr)0)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Resource_problem,
"FindResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString()));
}
int resSize = UnsafeNativeMethods.SizeofResource(hModule, hrsrc);
IntPtr hglob = UnsafeNativeMethods.LoadResource(hModule, hrsrc);
if (hglob == (IntPtr)0)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Resource_problem,
"LoadResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString()));
}
IntPtr pv = UnsafeNativeMethods.LockResource(hglob);
if (pv == (IntPtr)0)
{
throw new HttpException(HttpRuntime.FormatResourceString(SR.Resource_problem,
"LockResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString()));
}
// Make sure the end of the resource lies within the module. this can be an issue
// if the resource has been hacked with an invalid length (ASURT 145040)
if (!UnsafeNativeMethods.IsValidResource(hModule, pv, resSize))
{
throw new InvalidOperationException();
}
return(new SafeStringResource(pv, resSize));
}
internal static SafeStringResource ReadSafeStringResource(Type t)
{
// At designtime CodeGenDir is null.
if (HttpRuntime.CodegenDirInternal != null)
{
// Module.FullyQualifiedName was changed to check for FileIOPermission regardless of the name being an existing file or not.
// we need to Assert in order to succeed the Demand() (ASURT 121603)
(InternalSecurityPermissions.PathDiscovery(HttpRuntime.CodegenDirInternal)).Assert();
}
string dllPath = t.Module.FullyQualifiedName;
IntPtr hModule = UnsafeNativeMethods.GetModuleHandle(dllPath);
if (hModule == IntPtr.Zero)
{
// GetModuleHandle could fail if the assembly was renamed to .delete. So we fall back to
// calling Marshal.GetHINSTANCE, which is more reliable. Ideally, we should always do this
// directly, but to limit the risk, we only do it as a fall back (VSWhidbey 394621)
hModule = Marshal.GetHINSTANCE(t.Module);
if (hModule == IntPtr.Zero)
{
throw new HttpException(SR.GetString(SR.Resource_problem,
"GetModuleHandle", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture)));
}
}
IntPtr hrsrc = UnsafeNativeMethods.FindResource(hModule, (IntPtr)RESOURCE_ID, (IntPtr)RESOURCE_TYPE);
if (hrsrc == IntPtr.Zero)
{
throw new HttpException(SR.GetString(SR.Resource_problem,
"FindResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture)));
}
int resSize = UnsafeNativeMethods.SizeofResource(hModule, hrsrc);
IntPtr hglob = UnsafeNativeMethods.LoadResource(hModule, hrsrc);
if (hglob == IntPtr.Zero)
{
throw new HttpException(SR.GetString(SR.Resource_problem,
"LoadResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture)));
}
IntPtr pv = UnsafeNativeMethods.LockResource(hglob);
if (pv == IntPtr.Zero)
{
throw new HttpException(SR.GetString(SR.Resource_problem,
"LockResource", HttpException.HResultFromLastError(Marshal.GetLastWin32Error()).ToString(CultureInfo.InvariantCulture)));
}
// Make sure the end of the resource lies within the module. this can be an issue
// if the resource has been hacked with an invalid length (ASURT 145040)
if (!UnsafeNativeMethods.IsValidResource(hModule, pv, resSize))
{
throw new InvalidOperationException();
}
return(new SafeStringResource(pv, resSize));
}
