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81 lines
3.2 KiB
C++
81 lines
3.2 KiB
C++
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// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "net/base/filename_util.h"
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#include "base/files/file_path.h"
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#include "base/i18n/file_util_icu.h"
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#include "base/strings/string16.h"
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#include "net/base/filename_util_internal.h"
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class GURL;
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namespace net {
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bool IsSafePortablePathComponent(const base::FilePath& component) {
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base::string16 component16;
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base::FilePath::StringType sanitized = component.value();
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SanitizeGeneratedFileName(&sanitized, true);
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base::FilePath::StringType extension = component.Extension();
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if (!extension.empty())
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extension.erase(extension.begin()); // Erase preceding '.'.
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return !component.empty() && (component == component.BaseName()) &&
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(component == component.StripTrailingSeparators()) &&
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FilePathToString16(component, &component16) &&
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base::i18n::IsFilenameLegal(component16) &&
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!IsShellIntegratedExtension(extension) &&
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(sanitized == component.value()) &&
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!IsReservedNameOnWindows(component.value());
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}
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bool IsSafePortableRelativePath(const base::FilePath& path) {
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if (path.empty() || path.IsAbsolute() || path.EndsWithSeparator())
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return false;
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std::vector<base::FilePath::StringType> components;
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path.GetComponents(&components);
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if (components.empty())
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return false;
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for (size_t i = 0; i < components.size() - 1; ++i) {
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if (!IsSafePortablePathComponent(base::FilePath(components[i])))
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return false;
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}
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return IsSafePortablePathComponent(path.BaseName());
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}
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base::string16 GetSuggestedFilename(const GURL& url,
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const std::string& content_disposition,
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const std::string& referrer_charset,
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const std::string& suggested_name,
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const std::string& mime_type,
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const std::string& default_name) {
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return GetSuggestedFilenameImpl(url, content_disposition, referrer_charset,
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suggested_name, mime_type, default_name,
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&base::i18n::ReplaceIllegalCharactersInPath);
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}
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base::FilePath GenerateFileName(const GURL& url,
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const std::string& content_disposition,
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const std::string& referrer_charset,
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const std::string& suggested_name,
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const std::string& mime_type,
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const std::string& default_file_name) {
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base::FilePath generated_name(GenerateFileNameImpl(
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url, content_disposition, referrer_charset, suggested_name, mime_type,
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default_file_name, &base::i18n::ReplaceIllegalCharactersInPath));
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#if defined(OS_CHROMEOS)
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// When doing file manager operations on ChromeOS, the file paths get
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// normalized in WebKit layer, so let's ensure downloaded files have
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// normalized names. Otherwise, we won't be able to handle files with NFD
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// utf8 encoded characters in name.
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base::i18n::NormalizeFileNameEncoding(&generated_name);
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#endif
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DCHECK(!generated_name.empty());
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return generated_name;
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}
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} // namespace net
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