1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ppapi/shared_impl/file_ref_util.h" 6 7 #include "base/files/file_path.h" 8 #include "base/strings/string_util.h" 9 #include "base/strings/utf_string_conversions.h" 10 11 namespace ppapi { 12 13 std::string GetNameForInternalFilePath(const std::string& path) { 14 if (path == "/") 15 return path; 16 size_t pos = path.rfind('/'); 17 CHECK(pos != std::string::npos); 18 return path.substr(pos + 1); 19 } 20 21 std::string GetNameForExternalFilePath(const base::FilePath& path) { 22 const base::FilePath::StringType& file_path = path.value(); 23 size_t pos = file_path.rfind(base::FilePath::kSeparators[0]); 24 CHECK(pos != base::FilePath::StringType::npos); 25 #if defined(OS_WIN) 26 return base::WideToUTF8(file_path.substr(pos + 1)); 27 #elif defined(OS_POSIX) 28 return file_path.substr(pos + 1); 29 #else 30 #error "Unsupported platform." 31 #endif 32 } 33 34 bool IsValidInternalPath(const std::string& path) { 35 // We check that: 36 // The path starts with '/' 37 // The path must contain valid UTF-8 characters. 38 // It must not FilePath::ReferencesParent(). 39 if (path.empty() || !base::IsStringUTF8(path) || path[0] != '/') 40 return false; 41 base::FilePath file_path = base::FilePath::FromUTF8Unsafe(path); 42 if (file_path.ReferencesParent()) 43 return false; 44 return true; 45 } 46 47 bool IsValidExternalPath(const base::FilePath& path) { 48 return !path.empty() && !path.ReferencesParent(); 49 } 50 51 void NormalizeInternalPath(std::string* path) { 52 if (path->size() > 1 && path->at(path->size() - 1) == '/') 53 path->erase(path->size() - 1, 1); 54 } 55 56 } // namespace ppapi 57
