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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_DOWNLOAD_ITEM_METADATA_H_
#define CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_DOWNLOAD_ITEM_METADATA_H_
#include "base/memory/raw_ptr.h"
#include "chrome/browser/safe_browsing/download_protection/deep_scanning_metadata.h"
#include "components/download/public/common/download_item.h"
#include "content/public/browser/browser_context.h"
namespace safe_browsing {
// Implementation of DeepScanningMetadata for DownloadItem.
class DownloadItemMetadata : public DeepScanningMetadata {
public:
explicit DownloadItemMetadata(download::DownloadItem* item);
~DownloadItemMetadata() override;
content::BrowserContext* GetBrowserContext() const override;
safe_browsing::ReferrerChain GetReferrerChain() const override;
const base::FilePath& GetFullPath() const override;
const base::FilePath& GetTargetFilePath() const override;
const std::string& GetHash() const override;
int64_t GetTotalBytes() const override;
std::string GetMimeType() const override;
const GURL& GetURL() const override;
const GURL& GetTabUrl() const override;
bool HasUserGesture() const override;
bool IsObfuscated() const override;
bool IsTopLevelEncryptedArchive() const override;
download::DownloadDangerType GetDangerType() const override;
enterprise_connectors::EventResult GetPreScanEventResult(
download::DownloadDangerType danger_type) const override;
std::unique_ptr<DownloadRequestMaker> CreateDownloadRequestFromMetadata(
scoped_refptr<BinaryFeatureExtractor> binary_feature_extractor)
const override;
std::unique_ptr<DownloadScopedObservation> GetDownloadObservation(
download::DownloadItem::Observer* observer) override;
void RemoveObservation(download::DownloadItem::Observer* observer) override;
void SetDeepScanTrigger(
DownloadItemWarningData::DeepScanTrigger trigger) const override;
void SetHasIncorrectPassword(bool has_incorrect_password) const override;
void OpenDownload() const override;
void PromptForPassword() const override;
void AddScanResultMetadata(
const enterprise_connectors::FileMetadata& file_metadata) const override;
bool IsForDownloadItem(download::DownloadItem* download) const override;
void SetCallback(CheckDownloadRepeatingCallback callback);
void ProcessScanResult(DownloadCheckResultReason reason,
DownloadCheckResult deep_scan_result) override;
base::WeakPtr<DownloadItemMetadata> GetWeakPtr();
private:
// The download item to scan.
raw_ptr<download::DownloadItem> item_;
CheckDownloadRepeatingCallback callback_;
// Map of observers to their observation objects for cleanup.
std::unordered_map<download::DownloadItem::Observer*,
raw_ptr<DownloadScopedObservation>>
download_observations_;
base::WeakPtrFactory<DownloadItemMetadata> weakptr_factory_{this};
};
} // namespace safe_browsing
#endif // CHROME_BROWSER_SAFE_BROWSING_DOWNLOAD_PROTECTION_DOWNLOAD_ITEM_METADATA_H_
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