mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 00:06:09 +03:00
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
|
// Copyright (c) 2012 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 "net/base/platform_mime_util.h"
|
||
|
|
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
#include "base/strings/utf_string_conversions.h"
|
||
|
|
#include "base/win/registry.h"
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
|
||
|
|
namespace net {
|
||
|
|
|
||
|
|
bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
|
||
|
|
const base::FilePath::StringType& ext, std::string* result) const {
|
||
|
|
// check windows registry for file extension's mime type (registry key
|
||
|
|
// names are not case-sensitive).
|
||
|
|
std::wstring value, key = L"." + ext;
|
||
|
|
base::win::RegKey(HKEY_CLASSES_ROOT, key.c_str(), KEY_READ).ReadValue(
|
||
|
|
L"Content Type", &value);
|
||
|
|
if (!value.empty()) {
|
||
|
|
*result = base::WideToUTF8(value);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool PlatformMimeUtil::GetPlatformPreferredExtensionForMimeType(
|
||
|
|
const std::string& mime_type,
|
||
|
|
base::FilePath::StringType* ext) const {
|
||
|
|
std::wstring key(
|
||
|
|
L"MIME\\Database\\Content Type\\" + base::UTF8ToWide(mime_type));
|
||
|
|
if (base::win::RegKey(HKEY_CLASSES_ROOT, key.c_str(), KEY_READ).ReadValue(
|
||
|
|
L"Extension", ext) != ERROR_SUCCESS) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// Strip off the leading dot, this should always be the case.
|
||
|
|
if (!ext->empty() && ext->at(0) == L'.')
|
||
|
|
ext->erase(ext->begin());
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void PlatformMimeUtil::GetPlatformExtensionsForMimeType(
|
||
|
|
const std::string& mime_type,
|
||
|
|
std::unordered_set<base::FilePath::StringType>* extensions) const {
|
||
|
|
// Multiple extensions could have the given mime type specified as their types
|
||
|
|
// in their 'HKCR\.<extension>\Content Type' keys. Iterating all the HKCR
|
||
|
|
// entries, though, is wildly impractical. Cheat by returning just the
|
||
|
|
// preferred extension.
|
||
|
|
base::FilePath::StringType ext;
|
||
|
|
if (GetPlatformPreferredExtensionForMimeType(mime_type, &ext))
|
||
|
|
extensions->insert(ext);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace net
|