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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/enterprise/connectors/analysis/content_analysis_downloads_delegate.h"
#include "chrome/browser/enterprise/connectors/analysis/content_analysis_features.h"
#include "chrome/browser/enterprise/connectors/common.h"
#include "chrome/browser/enterprise/connectors/connectors_service.h"
#include "chrome/browser/safe_browsing/cloud_content_scanning/deep_scanning_utils.h"
#include "chrome/grit/generated_resources.h"
#include "components/enterprise/common/proto/connectors.pb.h"
#include "ui/base/l10n/l10n_util.h"
namespace enterprise_connectors {
ContentAnalysisDownloadsDelegate::ContentAnalysisDownloadsDelegate(
const std::u16string& filename,
const std::u16string& custom_message,
GURL custom_learn_more_url,
bool bypass_justification_required,
base::OnceClosure open_file_callback,
base::OnceClosure discard_file_callback,
download::DownloadItem* download_item,
const ContentAnalysisResponse::Result::TriggeredRule::CustomRuleMessage&
custom_rule_message)
: custom_rule_message_(custom_rule_message),
filename_(filename),
custom_message_(custom_message),
custom_learn_more_url_(custom_learn_more_url),
bypass_justification_required_(bypass_justification_required),
open_file_callback_(std::move(open_file_callback)),
discard_file_callback_(std::move(discard_file_callback)),
download_item_(download_item) {
if (download_item_) {
download_item_->AddObserver(this);
}
}
ContentAnalysisDownloadsDelegate::~ContentAnalysisDownloadsDelegate() {
if (download_item_) {
download_item_->RemoveObserver(this);
}
}
void ContentAnalysisDownloadsDelegate::BypassWarnings(
std::optional<std::u16string> user_justification) {
if (download_item_) {
enterprise_connectors::ScanResult* stored_result =
static_cast<enterprise_connectors::ScanResult*>(
download_item_->GetUserData(
enterprise_connectors::ScanResult::kKey));
if (stored_result) {
stored_result->user_justification = user_justification;
} else {
auto scan_result = std::make_unique<enterprise_connectors::ScanResult>();
scan_result->user_justification = user_justification;
download_item_->SetUserData(enterprise_connectors::ScanResult::kKey,
std::move(scan_result));
}
}
Open();
}
void ContentAnalysisDownloadsDelegate::Open() {
if (open_file_callback_) {
std::move(open_file_callback_).Run();
}
ResetCallbacks();
}
void ContentAnalysisDownloadsDelegate::Cancel(bool warning) {
if (discard_file_callback_)
std::move(discard_file_callback_).Run();
ResetCallbacks();
}
void ContentAnalysisDownloadsDelegate::ResetCallbacks() {
discard_file_callback_.Reset();
open_file_callback_.Reset();
}
std::optional<std::u16string>
ContentAnalysisDownloadsDelegate::GetCustomMessage() const {
// Rule-based custom messages take precedence over policy-based.
std::u16string custom_rule_message =
GetCustomRuleString(custom_rule_message_);
if (!custom_rule_message.empty()) {
return l10n_util::GetStringFUTF16(
IDS_DEEP_SCANNING_DIALOG_DOWNLOADS_CUSTOM_MESSAGE, filename_,
custom_rule_message);
}
if (custom_message_.empty())
return std::nullopt;
return l10n_util::GetStringFUTF16(
IDS_DEEP_SCANNING_DIALOG_DOWNLOADS_CUSTOM_MESSAGE, filename_,
custom_message_);
}
std::optional<GURL> ContentAnalysisDownloadsDelegate::GetCustomLearnMoreUrl()
const {
// Rule-based custom messages which don't have learn more urls take
// precedence over policy-based.
if (custom_learn_more_url_.is_empty() ||
!custom_rule_message_.message_segments().empty()) {
return std::nullopt;
}
return custom_learn_more_url_;
}
std::optional<std::vector<std::pair<gfx::Range, GURL>>>
ContentAnalysisDownloadsDelegate::GetCustomRuleMessageRanges() const {
std::vector<size_t> offsets;
l10n_util::GetStringFUTF16(IDS_DEEP_SCANNING_DIALOG_DOWNLOADS_CUSTOM_MESSAGE,
{filename_, std::u16string{}}, &offsets);
std::vector<std::pair<gfx::Range, GURL>> custom_rule_message_ranges =
GetCustomRuleStyles(custom_rule_message_, offsets.back());
if (!custom_rule_message_ranges.empty()) {
return custom_rule_message_ranges;
}
return std::nullopt;
}
bool ContentAnalysisDownloadsDelegate::BypassRequiresJustification() const {
return bypass_justification_required_;
}
std::u16string ContentAnalysisDownloadsDelegate::GetBypassJustificationLabel()
const {
return l10n_util::GetStringUTF16(
IDS_DEEP_SCANNING_DIALOG_DOWNLOAD_BYPASS_JUSTIFICATION_LABEL);
}
std::optional<std::u16string>
ContentAnalysisDownloadsDelegate::OverrideCancelButtonText() const {
return l10n_util::GetStringUTF16(
IDS_DEEP_SCANNING_DIALOG_DOWNLOADS_DISCARD_FILE_BUTTON);
}
void ContentAnalysisDownloadsDelegate::OnDownloadDestroyed(
download::DownloadItem* download) {
DCHECK_EQ(download, download_item_);
download->RemoveObserver(this);
download_item_ = nullptr;
}
} // namespace enterprise_connectors
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