Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / reactos / win32ss / printing / base / spoolss / context.c

diff --git a/reactos/win32ss/printing/base/spoolss/context.c b/reactos/win32ss/printing/base/spoolss/context.c
deleted file mode 100644 (file)
index cf1f185..0000000
--- a/reactos/win32ss/printing/base/spoolss/context.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * PROJECT:     ReactOS Spooler Router
- * LICENSE:     GPL-2.0+ (https://spdx.org/licenses/GPL-2.0+)
- * PURPOSE:     Functions related to switching between security contexts
- * COPYRIGHT:   Copyright 2015 Colin Finck (colin@reactos.org)
- */
-
-#include "precomp.h"
-
-/**
- * @see RevertToPrinterSelf
- */
-BOOL WINAPI
-ImpersonatePrinterClient(HANDLE hToken)
-{
-    DWORD cbReturned;
-    DWORD dwErrorCode;
-    TOKEN_TYPE Type;
-
-    // Sanity check
-    if (!hToken)
-    {
-        dwErrorCode = ERROR_INVALID_HANDLE;
-        goto Cleanup;
-    }
-
-    // Get the type of the supplied token.
-    if (!GetTokenInformation(hToken, TokenType, &Type, sizeof(TOKEN_TYPE), &cbReturned))
-    {
-        dwErrorCode = GetLastError();
-        ERR("GetTokenInformation failed with error %lu!\n", dwErrorCode);
-        goto Cleanup;
-    }
-
-    // Check if this is an impersonation token and only set it as the thread token in this case.
-    // This is not always an impersonation token, see RevertToPrinterSelf.
-    if (Type == TokenImpersonation)
-    {
-        if (!SetThreadToken(NULL, hToken))
-        {
-            dwErrorCode = GetLastError();
-            ERR("SetThreadToken failed with error %lu!\n", dwErrorCode);
-            goto Cleanup;
-        }
-    }
-
-Cleanup:
-    if (hToken)
-        CloseHandle(hToken);
-
-    SetLastError(dwErrorCode);
-    return (dwErrorCode == ERROR_SUCCESS);
-}
-
-/**
- * RevertToPrinterSelf reverts the security context from the current user's context back to the process context.
- * As spoolss.dll is used by spoolsv.exe, this is usually the SYSTEM security context.
- *
- * Unlike the traditional ImpersonateClient and then RevertToSelf approach, we do it the other way round here,
- * because spoolss.dll is delay-loaded by spoolsv.exe in the current user's context. Use RevertToPrinterSelf then to
- * return to the SYSTEM context for specific tasks.
- */
-HANDLE WINAPI
-RevertToPrinterSelf()
-{
-    DWORD dwErrorCode;
-    HANDLE hReturnValue = NULL;
-    HANDLE hToken = NULL;
-
-    // All spoolss code is usually called after impersonating the client. In this case, we can retrieve our current thread impersonation token using OpenThreadToken.
-    // But in rare occasions, spoolss code is also called from a higher-privileged thread that doesn't impersonate the client. Then we don't get an impersonation token.
-    // Anyway, we can't just return nothing in this case, because this is being treated as failure by the caller. So we return the token of the current process.
-    // This behaviour is verified with Windows!
-    if (OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE, TRUE, &hToken))
-    {
-        // Tell the thread to stop impersonating.
-        if (!SetThreadToken(NULL, NULL))
-        {
-            dwErrorCode = GetLastError();
-            ERR("SetThreadToken failed with error %lu!\n", dwErrorCode);
-            goto Cleanup;
-        }
-    }
-    else if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
-    {
-        dwErrorCode = GetLastError();
-        ERR("OpenProcessToken failed with error %lu!\n", dwErrorCode);
-        goto Cleanup;
-    }
-
-    // We were successful, return a token!
-    dwErrorCode = ERROR_SUCCESS;
-    hReturnValue = hToken;
-
-    // Don't let the cleanup routine close this.
-    hToken = NULL;
-
-Cleanup:
-    if (hToken)
-        CloseHandle(hToken);
-
-    SetLastError(dwErrorCode);
-    return hReturnValue;
-}