| // Copyright 2013 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 "ppapi/shared_impl/file_ref_util.h" |
| |
| #include "base/files/file_path.h" |
| #include "base/strings/string_util.h" |
| #include "base/strings/utf_string_conversions.h" |
| |
| namespace ppapi { |
| |
| std::string GetNameForInternalFilePath(const std::string& path) { |
| if (path == "/") |
| return path; |
| size_t pos = path.rfind('/'); |
| CHECK(pos != std::string::npos); |
| return path.substr(pos + 1); |
| } |
| |
| std::string GetNameForExternalFilePath(const base::FilePath& path) { |
| const base::FilePath::StringType& file_path = path.value(); |
| size_t pos = file_path.rfind(base::FilePath::kSeparators[0]); |
| CHECK(pos != base::FilePath::StringType::npos); |
| #if defined(OS_WIN) |
| return base::WideToUTF8(file_path.substr(pos + 1)); |
| #elif defined(OS_POSIX) |
| return file_path.substr(pos + 1); |
| #else |
| #error "Unsupported platform." |
| #endif |
| } |
| |
| bool IsValidInternalPath(const std::string& path) { |
| // We check that: |
| // The path starts with '/' |
| // The path must contain valid UTF-8 characters. |
| // It must not FilePath::ReferencesParent(). |
| if (path.empty() || !base::IsStringUTF8(path) || path[0] != '/') |
| return false; |
| base::FilePath file_path = base::FilePath::FromUTF8Unsafe(path); |
| if (file_path.ReferencesParent()) |
| return false; |
| return true; |
| } |
| |
| bool IsValidExternalPath(const base::FilePath& path) { |
| return !path.empty() && !path.ReferencesParent(); |
| } |
| |
| void NormalizeInternalPath(std::string* path) { |
| if (path->size() > 1 && path->at(path->size() - 1) == '/') |
| path->erase(path->size() - 1, 1); |
| } |
| |
| } // namespace ppapi |