Eliminate mojo:resource_provider

components/resource_provider/file_utils.cc

-// Copyright 2015 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 "components/resource_provider/file_utils.h"
-
-#include <stddef.h>
-
-#include "base/files/file_path.h"
-#include "base/path_service.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "build/build_config.h"
-
-namespace resource_provider {
-namespace {
-
-bool IsPathNameValid(const std::string& name) {
-  if (name.empty() || name == "." || name == "..")
-    return false;
-
-  for (auto c : name) {
-    if (!base::IsAsciiAlpha(c) && !base::IsAsciiDigit(c) &&
-        c != '_' && c != '.')
-      return false;
-  }
-  return true;
-}
-
-}  // namespace
-
-base::FilePath GetPathForApplicationName(const std::string& application_name) {
-  std::string path = application_name;
-  const bool is_mojo =
-      base::StartsWith(path, "mojo:", base::CompareCase::INSENSITIVE_ASCII);
-  const bool is_exe =
-      !is_mojo &&
-      base::StartsWith(path, "exe:", base::CompareCase::INSENSITIVE_ASCII);
-  if (!is_mojo && !is_exe)
-    return base::FilePath();
-  if (path.find('.') != std::string::npos)
-    return base::FilePath();
-  if (is_mojo)
-    path.erase(path.begin(), path.begin() + 5);
-  else
-    path.erase(path.begin(), path.begin() + 4);
-  base::TrimString(path, "/", &path);
-  size_t end_of_name = path.find('/');
-  if (end_of_name != std::string::npos)
-    path.erase(path.begin() + end_of_name, path.end());
-
-  if (!IsPathNameValid(path))
-    return base::FilePath();
-
-  base::FilePath base_path;
-#if defined(OS_ANDROID)
-  PathService::Get(base::DIR_ANDROID_APP_DATA, &base_path);
-  // |base_path| on android has an additional path, need to go up a level to get
-  // at other apps resources.
-  base_path = base_path.DirName();
-  base_path = base_path.AppendASCII("app_cached_apps");
-#else
-  PathService::Get(base::DIR_EXE, &base_path);
-#endif
-  // TODO(beng): this won't handle user-specific components.
-  return base_path.AppendASCII("Mojo Applications").AppendASCII(path).
-      AppendASCII("resources");
-}
-
-base::FilePath GetPathForResourceNamed(const base::FilePath& app_path,
-                                       const std::string& resource_path) {
-  CHECK(!app_path.empty());
-
-  if (resource_path.empty() || resource_path[0] == '/' ||
-      resource_path[resource_path.size() - 1] == '/' ||
-      resource_path.find("//") != std::string::npos)
-    return base::FilePath();
-
-  std::vector<std::string> path_components = base::SplitString(
-      resource_path, "/", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-  if (path_components.empty())
-    return base::FilePath();
-
-  base::FilePath result(app_path);
-  for (const auto& path_component : path_components) {
-    if (!IsPathNameValid(path_component))
-      return base::FilePath();
-    result = result.AppendASCII(path_component);
-  }
-  return result;
-}
-
-}  // namespace resource_provider