Revert of Remove sandbox/win/tools.

sandbox/win/tools/finder/finder_fs.cc

+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "sandbox/win/src/restricted_token.h"
+#include "sandbox/win/src/restricted_token_utils.h"
+#include "sandbox/win/tools/finder/finder.h"
+
+DWORD Finder::ParseFileSystem(ATL::CString directory) {
+  WIN32_FIND_DATA find_data;
+  HANDLE find;
+
+  //Search for items in the directory.
+  ATL::CString name_to_search = directory + L"\\*";
+  find = ::FindFirstFile(name_to_search, &find_data);
+  if (INVALID_HANDLE_VALUE == find) {
+    DWORD error = ::GetLastError();
+    Output(FS_ERR, error, directory);
+    filesystem_stats_[BROKEN]++;
+    return error;
+  }
+
+  // parse all files or folders.
+  do {
+    if (_tcscmp(find_data.cFileName, L".") == 0 ||
+        _tcscmp(find_data.cFileName, L"..") == 0)
+      continue;
+
+    ATL::CString complete_name = directory + L"\\" + find_data.cFileName;
+    TestFileAccess(complete_name);
+
+    // Call recursively the function if the path found is a directory.
+    if ((find_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0) {
+      ParseFileSystem(complete_name);
+    }
+  } while (::FindNextFile(find, &find_data) != 0);
+
+  DWORD err_code = ::GetLastError();
+  ::FindClose(find);
+
+  if (ERROR_NO_MORE_FILES != err_code) {
+    Output(FS_ERR, err_code, directory);
+    filesystem_stats_[BROKEN]++;
+    return err_code;
+  }
+
+  return ERROR_SUCCESS;
+}
+
+DWORD Finder::TestFileAccess(ATL::CString name) {
+  Impersonater impersonate(token_handle_);
+
+  filesystem_stats_[PARSE]++;
+
+  HANDLE file;
+  if (access_type_ & kTestForAll) {
+    file = ::CreateFile(name.GetBuffer(),
+                        GENERIC_ALL,
+                        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                        NULL,
+                        OPEN_EXISTING,
+                        FILE_ATTRIBUTE_NORMAL,
+                        NULL);
+
+    if (file != INVALID_HANDLE_VALUE) {
+      filesystem_stats_[ALL]++;
+      Output(FS, L"R/W", name.GetBuffer());
+      ::CloseHandle(file);
+      return GENERIC_ALL;
+    } else if (::GetLastError() != ERROR_ACCESS_DENIED) {
+      Output(FS_ERR, GetLastError(), name);
+      filesystem_stats_[BROKEN]++;
+    }
+  }
+
+  if (access_type_ & kTestForWrite) {
+    file = ::CreateFile(name.GetBuffer(),
+                        GENERIC_WRITE,
+                        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                        NULL,
+                        OPEN_EXISTING,
+                        FILE_ATTRIBUTE_NORMAL,
+                        NULL);
+
+    if (file != INVALID_HANDLE_VALUE) {
+      filesystem_stats_[WRITE]++;
+      Output(FS, L"W", name);
+      ::CloseHandle(file);
+      return GENERIC_WRITE;
+    } else if (::GetLastError() != ERROR_ACCESS_DENIED) {
+      Output(FS_ERR, ::GetLastError(), name);
+      filesystem_stats_[BROKEN]++;
+    }
+  }
+
+  if (access_type_ & kTestForRead) {
+    file = ::CreateFile(name.GetBuffer(),
+                        GENERIC_READ,
+                        FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                        NULL,
+                        OPEN_EXISTING,
+                        FILE_ATTRIBUTE_NORMAL,
+                        NULL);
+
+    if (file != INVALID_HANDLE_VALUE) {
+      filesystem_stats_[READ]++;
+      Output(FS, L"R", name);
+      ::CloseHandle(file);
+      return GENERIC_READ;
+    } else if (::GetLastError() != ERROR_ACCESS_DENIED) {
+      Output(FS_ERR, GetLastError(), name);
+      filesystem_stats_[BROKEN]++;
+    }
+  }
+
+  return 0;
+}