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// Copyright (c) 2010 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 <string>
#include "net/base/platform_mime_util.h"
#include "base/registry.h"
#include "base/utf_string_conversions.h"
namespace net {
bool PlatformMimeUtil::GetPlatformMimeTypeFromExtension(
const 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;
RegKey(HKEY_CLASSES_ROOT, key.c_str(), KEY_READ).ReadValue(L"Content Type",
&value);
if (!value.empty()) {
*result = WideToUTF8(value);
return true;
}
return false;
}
bool PlatformMimeUtil::GetPreferredExtensionForMimeType(
const std::string& mime_type, FilePath::StringType* ext) const {
std::wstring key(L"MIME\\Database\\Content Type\\" + UTF8ToWide(mime_type));
if (!RegKey(HKEY_CLASSES_ROOT, key.c_str(), KEY_READ).ReadValue(L"Extension",
ext)) {
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;
}
} // namespace net
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